forked from Green-Sky/tomato
Squashed 'external/libwebp/libwebp/' content from commit dd7364c3c
git-subtree-dir: external/libwebp/libwebp git-subtree-split: dd7364c3cefe0f5c0b3c18c3b1887d353f90fc1f
This commit is contained in:
commit
67653bbe50
240
.cmake-format.py
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240
.cmake-format.py
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@ -0,0 +1,240 @@
|
|||||||
|
# ----------------------------------
|
||||||
|
# Options affecting listfile parsing
|
||||||
|
# ----------------------------------
|
||||||
|
with section("parse"):
|
||||||
|
|
||||||
|
# Specify structure for custom cmake functions
|
||||||
|
additional_commands = { 'foo': { 'flags': ['BAR', 'BAZ'],
|
||||||
|
'kwargs': {'DEPENDS': '*', 'HEADERS': '*', 'SOURCES': '*'}}}
|
||||||
|
|
||||||
|
# Override configurations per-command where available
|
||||||
|
override_spec = {}
|
||||||
|
|
||||||
|
# Specify variable tags.
|
||||||
|
vartags = []
|
||||||
|
|
||||||
|
# Specify property tags.
|
||||||
|
proptags = []
|
||||||
|
|
||||||
|
# -----------------------------
|
||||||
|
# Options affecting formatting.
|
||||||
|
# -----------------------------
|
||||||
|
with section("format"):
|
||||||
|
|
||||||
|
# Disable formatting entirely, making cmake-format a no-op
|
||||||
|
disable = False
|
||||||
|
|
||||||
|
# How wide to allow formatted cmake files
|
||||||
|
line_width = 80
|
||||||
|
|
||||||
|
# How many spaces to tab for indent
|
||||||
|
tab_size = 2
|
||||||
|
|
||||||
|
# If true, lines are indented using tab characters (utf-8 0x09) instead of
|
||||||
|
# <tab_size> space characters (utf-8 0x20). In cases where the layout would
|
||||||
|
# require a fractional tab character, the behavior of the fractional
|
||||||
|
# indentation is governed by <fractional_tab_policy>
|
||||||
|
use_tabchars = False
|
||||||
|
|
||||||
|
# If <use_tabchars> is True, then the value of this variable indicates how
|
||||||
|
# fractional indentions are handled during whitespace replacement. If set to
|
||||||
|
# 'use-space', fractional indentation is left as spaces (utf-8 0x20). If set
|
||||||
|
# to `round-up` fractional indentation is replaced with a single tab character
|
||||||
|
# (utf-8 0x09) effectively shifting the column to the next tabstop
|
||||||
|
fractional_tab_policy = 'use-space'
|
||||||
|
|
||||||
|
# If an argument group contains more than this many sub-groups (parg or kwarg
|
||||||
|
# groups) then force it to a vertical layout.
|
||||||
|
max_subgroups_hwrap = 3
|
||||||
|
|
||||||
|
# If a positional argument group contains more than this many arguments, then
|
||||||
|
# force it to a vertical layout.
|
||||||
|
max_pargs_hwrap = 6
|
||||||
|
|
||||||
|
# If a cmdline positional group consumes more than this many lines without
|
||||||
|
# nesting, then invalidate the layout (and nest)
|
||||||
|
max_rows_cmdline = 2
|
||||||
|
|
||||||
|
# If true, separate flow control names from their parentheses with a space
|
||||||
|
separate_ctrl_name_with_space = False
|
||||||
|
|
||||||
|
# If true, separate function names from parentheses with a space
|
||||||
|
separate_fn_name_with_space = False
|
||||||
|
|
||||||
|
# If a statement is wrapped to more than one line, than dangle the closing
|
||||||
|
# parenthesis on its own line.
|
||||||
|
dangle_parens = False
|
||||||
|
|
||||||
|
# If the trailing parenthesis must be 'dangled' on its on line, then align it
|
||||||
|
# to this reference: `prefix`: the start of the statement, `prefix-indent`:
|
||||||
|
# the start of the statement, plus one indentation level, `child`: align to
|
||||||
|
# the column of the arguments
|
||||||
|
dangle_align = 'prefix'
|
||||||
|
|
||||||
|
# If the statement spelling length (including space and parenthesis) is
|
||||||
|
# smaller than this amount, then force reject nested layouts.
|
||||||
|
min_prefix_chars = 4
|
||||||
|
|
||||||
|
# If the statement spelling length (including space and parenthesis) is larger
|
||||||
|
# than the tab width by more than this amount, then force reject un-nested
|
||||||
|
# layouts.
|
||||||
|
max_prefix_chars = 10
|
||||||
|
|
||||||
|
# If a candidate layout is wrapped horizontally but it exceeds this many
|
||||||
|
# lines, then reject the layout.
|
||||||
|
max_lines_hwrap = 2
|
||||||
|
|
||||||
|
# What style line endings to use in the output.
|
||||||
|
line_ending = 'unix'
|
||||||
|
|
||||||
|
# Format command names consistently as 'lower' or 'upper' case
|
||||||
|
command_case = 'canonical'
|
||||||
|
|
||||||
|
# Format keywords consistently as 'lower' or 'upper' case
|
||||||
|
keyword_case = 'unchanged'
|
||||||
|
|
||||||
|
# A list of command names which should always be wrapped
|
||||||
|
always_wrap = []
|
||||||
|
|
||||||
|
# If true, the argument lists which are known to be sortable will be sorted
|
||||||
|
# lexicographicall
|
||||||
|
enable_sort = True
|
||||||
|
|
||||||
|
# If true, the parsers may infer whether or not an argument list is sortable
|
||||||
|
# (without annotation).
|
||||||
|
autosort = False
|
||||||
|
|
||||||
|
# By default, if cmake-format cannot successfully fit everything into the
|
||||||
|
# desired linewidth it will apply the last, most agressive attempt that it
|
||||||
|
# made. If this flag is True, however, cmake-format will print error, exit
|
||||||
|
# with non-zero status code, and write-out nothing
|
||||||
|
require_valid_layout = False
|
||||||
|
|
||||||
|
# A dictionary mapping layout nodes to a list of wrap decisions. See the
|
||||||
|
# documentation for more information.
|
||||||
|
layout_passes = {}
|
||||||
|
|
||||||
|
# ------------------------------------------------
|
||||||
|
# Options affecting comment reflow and formatting.
|
||||||
|
# ------------------------------------------------
|
||||||
|
with section("markup"):
|
||||||
|
|
||||||
|
# What character to use for bulleted lists
|
||||||
|
bullet_char = '*'
|
||||||
|
|
||||||
|
# What character to use as punctuation after numerals in an enumerated list
|
||||||
|
enum_char = '.'
|
||||||
|
|
||||||
|
# If comment markup is enabled, don't reflow the first comment block in each
|
||||||
|
# listfile. Use this to preserve formatting of your copyright/license
|
||||||
|
# statements.
|
||||||
|
first_comment_is_literal = True
|
||||||
|
|
||||||
|
# If comment markup is enabled, don't reflow any comment block which matches
|
||||||
|
# this (regex) pattern. Default is `None` (disabled).
|
||||||
|
literal_comment_pattern = None
|
||||||
|
|
||||||
|
# Regular expression to match preformat fences in comments default=
|
||||||
|
# ``r'^\s*([`~]{3}[`~]*)(.*)$'``
|
||||||
|
fence_pattern = '^\\s*([`~]{3}[`~]*)(.*)$'
|
||||||
|
|
||||||
|
# Regular expression to match rulers in comments default=
|
||||||
|
# ``r'^\s*[^\w\s]{3}.*[^\w\s]{3}$'``
|
||||||
|
ruler_pattern = '^\\s*[^\\w\\s]{3}.*[^\\w\\s]{3}$'
|
||||||
|
|
||||||
|
# If a comment line matches starts with this pattern then it is explicitly a
|
||||||
|
# trailing comment for the preceeding argument. Default is '#<'
|
||||||
|
explicit_trailing_pattern = '#<'
|
||||||
|
|
||||||
|
# If a comment line starts with at least this many consecutive hash
|
||||||
|
# characters, then don't lstrip() them off. This allows for lazy hash rulers
|
||||||
|
# where the first hash char is not separated by space
|
||||||
|
hashruler_min_length = 10
|
||||||
|
|
||||||
|
# If true, then insert a space between the first hash char and remaining hash
|
||||||
|
# chars in a hash ruler, and normalize its length to fill the column
|
||||||
|
canonicalize_hashrulers = True
|
||||||
|
|
||||||
|
# enable comment markup parsing and reflow
|
||||||
|
enable_markup = True
|
||||||
|
|
||||||
|
# ----------------------------
|
||||||
|
# Options affecting the linter
|
||||||
|
# ----------------------------
|
||||||
|
with section("lint"):
|
||||||
|
|
||||||
|
# a list of lint codes to disable
|
||||||
|
disabled_codes = []
|
||||||
|
|
||||||
|
# regular expression pattern describing valid function names
|
||||||
|
function_pattern = '[0-9a-z_]+'
|
||||||
|
|
||||||
|
# regular expression pattern describing valid macro names
|
||||||
|
macro_pattern = '[0-9A-Z_]+'
|
||||||
|
|
||||||
|
# regular expression pattern describing valid names for variables with global
|
||||||
|
# (cache) scope
|
||||||
|
global_var_pattern = '[A-Z][0-9A-Z_]+'
|
||||||
|
|
||||||
|
# regular expression pattern describing valid names for variables with global
|
||||||
|
# scope (but internal semantic)
|
||||||
|
internal_var_pattern = '_[A-Z][0-9A-Z_]+'
|
||||||
|
|
||||||
|
# regular expression pattern describing valid names for variables with local
|
||||||
|
# scope
|
||||||
|
local_var_pattern = '[a-z][a-z0-9_]+'
|
||||||
|
|
||||||
|
# regular expression pattern describing valid names for privatedirectory
|
||||||
|
# variables
|
||||||
|
private_var_pattern = '_[0-9a-z_]+'
|
||||||
|
|
||||||
|
# regular expression pattern describing valid names for public directory
|
||||||
|
# variables
|
||||||
|
public_var_pattern = '[A-Z][0-9A-Z_]+'
|
||||||
|
|
||||||
|
# regular expression pattern describing valid names for function/macro
|
||||||
|
# arguments and loop variables.
|
||||||
|
argument_var_pattern = '[a-z][a-z0-9_]+'
|
||||||
|
|
||||||
|
# regular expression pattern describing valid names for keywords used in
|
||||||
|
# functions or macros
|
||||||
|
keyword_pattern = '[A-Z][0-9A-Z_]+'
|
||||||
|
|
||||||
|
# In the heuristic for C0201, how many conditionals to match within a loop in
|
||||||
|
# before considering the loop a parser.
|
||||||
|
max_conditionals_custom_parser = 2
|
||||||
|
|
||||||
|
# Require at least this many newlines between statements
|
||||||
|
min_statement_spacing = 1
|
||||||
|
|
||||||
|
# Require no more than this many newlines between statements
|
||||||
|
max_statement_spacing = 2
|
||||||
|
max_returns = 6
|
||||||
|
max_branches = 12
|
||||||
|
max_arguments = 5
|
||||||
|
max_localvars = 15
|
||||||
|
max_statements = 50
|
||||||
|
|
||||||
|
# -------------------------------
|
||||||
|
# Options affecting file encoding
|
||||||
|
# -------------------------------
|
||||||
|
with section("encode"):
|
||||||
|
|
||||||
|
# If true, emit the unicode byte-order mark (BOM) at the start of the file
|
||||||
|
emit_byteorder_mark = False
|
||||||
|
|
||||||
|
# Specify the encoding of the input file. Defaults to utf-8
|
||||||
|
input_encoding = 'utf-8'
|
||||||
|
|
||||||
|
# Specify the encoding of the output file. Defaults to utf-8. Note that cmake
|
||||||
|
# only claims to support utf-8 so be careful when using anything else
|
||||||
|
output_encoding = 'utf-8'
|
||||||
|
|
||||||
|
# -------------------------------------
|
||||||
|
# Miscellaneous configurations options.
|
||||||
|
# -------------------------------------
|
||||||
|
with section("misc"):
|
||||||
|
|
||||||
|
# A dictionary containing any per-command configuration overrides. Currently
|
||||||
|
# only `command_case` is supported.
|
||||||
|
per_command = {}
|
6
.gitattributes
vendored
Normal file
6
.gitattributes
vendored
Normal file
@ -0,0 +1,6 @@
|
|||||||
|
.gitattributes export-ignore
|
||||||
|
.gitignore export-ignore
|
||||||
|
.mailmap export-ignore
|
||||||
|
*.bat text eol=crlf
|
||||||
|
*.pdf -text -diff
|
||||||
|
*.ppm -text -diff
|
56
.gitignore
vendored
Normal file
56
.gitignore
vendored
Normal file
@ -0,0 +1,56 @@
|
|||||||
|
*.l[ao]
|
||||||
|
*.[ao]
|
||||||
|
*.pc
|
||||||
|
.DS_Store
|
||||||
|
.deps
|
||||||
|
.idea
|
||||||
|
.libs
|
||||||
|
.vscode
|
||||||
|
/aclocal.m4
|
||||||
|
/ar-lib
|
||||||
|
/autom4te.cache
|
||||||
|
/compile
|
||||||
|
/config.*
|
||||||
|
/configure
|
||||||
|
/depcomp
|
||||||
|
/dist
|
||||||
|
/install-sh
|
||||||
|
/libtool
|
||||||
|
/ltmain.sh
|
||||||
|
/missing
|
||||||
|
/mkinstalldirs
|
||||||
|
/stamp-h1
|
||||||
|
Makefile
|
||||||
|
Makefile.in
|
||||||
|
examples/anim_diff
|
||||||
|
examples/anim_dump
|
||||||
|
examples/[cdv]webp
|
||||||
|
examples/gif2webp
|
||||||
|
examples/img2webp
|
||||||
|
examples/webpinfo
|
||||||
|
examples/webpmux
|
||||||
|
src/webp/config.h*
|
||||||
|
src/webp/stamp-h1
|
||||||
|
/output
|
||||||
|
/doc/output
|
||||||
|
*.idb
|
||||||
|
*.pdb
|
||||||
|
/iosbuild
|
||||||
|
/xcframeworkbuild
|
||||||
|
/WebP*.*framework
|
||||||
|
CMakeCache.txt
|
||||||
|
CMakeFiles/
|
||||||
|
cmake_install.cmake
|
||||||
|
.gradle
|
||||||
|
/build
|
||||||
|
extras/get_disto
|
||||||
|
extras/vwebp_sdl
|
||||||
|
extras/webp_quality
|
||||||
|
tests/fuzzer/advanced_api_fuzzer
|
||||||
|
tests/fuzzer/animation_api_fuzzer
|
||||||
|
tests/fuzzer/animdecoder_fuzzer
|
||||||
|
tests/fuzzer/animencoder_fuzzer
|
||||||
|
tests/fuzzer/demux_api_fuzzer
|
||||||
|
tests/fuzzer/enc_dec_fuzzer
|
||||||
|
tests/fuzzer/mux_demux_api_fuzzer
|
||||||
|
tests/fuzzer/simple_api_fuzzer
|
19
.mailmap
Normal file
19
.mailmap
Normal file
@ -0,0 +1,19 @@
|
|||||||
|
Johann Koenig <johann.koenig@duck.com>
|
||||||
|
Johann Koenig <johann.koenig@duck.com> <johannkoenig@google.com>
|
||||||
|
Mikołaj Zalewski <mikolajz@google.com>
|
||||||
|
Pascal Massimino <pascal.massimino@gmail.com>
|
||||||
|
Pascal Massimino <pascal.massimino@gmail.com> <skal@google.com>
|
||||||
|
Vikas Arora <vikasa@google.com>
|
||||||
|
<vikasa@google.com> <vikasa@gmail.com>
|
||||||
|
<vikasa@google.com> <vikaas.arora@gmail.com>
|
||||||
|
<slobodan.prijic@imgtec.com> <Slobodan.Prijic@imgtec.com>
|
||||||
|
<vrabaud@google.com> <vincent.rabaud@gmail.com>
|
||||||
|
Vincent Rabaud <vrabaud@google.com>
|
||||||
|
Tamar Levy <tamar.levy@intel.com>
|
||||||
|
<qrczak@google.com> <qrczak>
|
||||||
|
Hui Su <huisu@google.com>
|
||||||
|
James Zern <jzern@google.com>
|
||||||
|
Roberto Alanis <alanisbaez@google.com>
|
||||||
|
Brian Ledger <brianpl@google.com>
|
||||||
|
Maryla Ustarroz-Calonge <maryla@google.com>
|
||||||
|
Yannis Guyon <yguyon@google.com>
|
441
.pylintrc
Normal file
441
.pylintrc
Normal file
@ -0,0 +1,441 @@
|
|||||||
|
# This Pylint rcfile contains a best-effort configuration to uphold the
|
||||||
|
# best-practices and style described in the Google Python style guide:
|
||||||
|
# https://google.github.io/styleguide/pyguide.html
|
||||||
|
#
|
||||||
|
# Its canonical open-source location is:
|
||||||
|
# https://google.github.io/styleguide/pylintrc
|
||||||
|
|
||||||
|
[MASTER]
|
||||||
|
|
||||||
|
# Files or directories to be skipped. They should be base names, not paths.
|
||||||
|
ignore=third_party
|
||||||
|
|
||||||
|
# Files or directories matching the regex patterns are skipped. The regex
|
||||||
|
# matches against base names, not paths.
|
||||||
|
ignore-patterns=
|
||||||
|
|
||||||
|
# Pickle collected data for later comparisons.
|
||||||
|
persistent=no
|
||||||
|
|
||||||
|
# List of plugins (as comma separated values of python modules names) to load,
|
||||||
|
# usually to register additional checkers.
|
||||||
|
load-plugins=
|
||||||
|
|
||||||
|
# Use multiple processes to speed up Pylint.
|
||||||
|
jobs=4
|
||||||
|
|
||||||
|
# Allow loading of arbitrary C extensions. Extensions are imported into the
|
||||||
|
# active Python interpreter and may run arbitrary code.
|
||||||
|
unsafe-load-any-extension=no
|
||||||
|
|
||||||
|
|
||||||
|
[MESSAGES CONTROL]
|
||||||
|
|
||||||
|
# Only show warnings with the listed confidence levels. Leave empty to show
|
||||||
|
# all. Valid levels: HIGH, INFERENCE, INFERENCE_FAILURE, UNDEFINED
|
||||||
|
confidence=
|
||||||
|
|
||||||
|
# Enable the message, report, category or checker with the given id(s). You can
|
||||||
|
# either give multiple identifier separated by comma (,) or put this option
|
||||||
|
# multiple time (only on the command line, not in the configuration file where
|
||||||
|
# it should appear only once). See also the "--disable" option for examples.
|
||||||
|
#enable=
|
||||||
|
|
||||||
|
# Disable the message, report, category or checker with the given id(s). You
|
||||||
|
# can either give multiple identifiers separated by comma (,) or put this
|
||||||
|
# option multiple times (only on the command line, not in the configuration
|
||||||
|
# file where it should appear only once).You can also use "--disable=all" to
|
||||||
|
# disable everything first and then reenable specific checks. For example, if
|
||||||
|
# you want to run only the similarities checker, you can use "--disable=all
|
||||||
|
# --enable=similarities". If you want to run only the classes checker, but have
|
||||||
|
# no Warning level messages displayed, use"--disable=all --enable=classes
|
||||||
|
# --disable=W"
|
||||||
|
disable=abstract-method,
|
||||||
|
apply-builtin,
|
||||||
|
arguments-differ,
|
||||||
|
attribute-defined-outside-init,
|
||||||
|
backtick,
|
||||||
|
bad-option-value,
|
||||||
|
basestring-builtin,
|
||||||
|
buffer-builtin,
|
||||||
|
c-extension-no-member,
|
||||||
|
consider-using-enumerate,
|
||||||
|
cmp-builtin,
|
||||||
|
cmp-method,
|
||||||
|
coerce-builtin,
|
||||||
|
coerce-method,
|
||||||
|
delslice-method,
|
||||||
|
div-method,
|
||||||
|
duplicate-code,
|
||||||
|
eq-without-hash,
|
||||||
|
execfile-builtin,
|
||||||
|
file-builtin,
|
||||||
|
filter-builtin-not-iterating,
|
||||||
|
fixme,
|
||||||
|
getslice-method,
|
||||||
|
global-statement,
|
||||||
|
hex-method,
|
||||||
|
idiv-method,
|
||||||
|
implicit-str-concat-in-sequence,
|
||||||
|
import-error,
|
||||||
|
import-self,
|
||||||
|
import-star-module-level,
|
||||||
|
inconsistent-return-statements,
|
||||||
|
input-builtin,
|
||||||
|
intern-builtin,
|
||||||
|
invalid-str-codec,
|
||||||
|
locally-disabled,
|
||||||
|
long-builtin,
|
||||||
|
long-suffix,
|
||||||
|
map-builtin-not-iterating,
|
||||||
|
misplaced-comparison-constant,
|
||||||
|
missing-function-docstring,
|
||||||
|
metaclass-assignment,
|
||||||
|
next-method-called,
|
||||||
|
next-method-defined,
|
||||||
|
no-absolute-import,
|
||||||
|
no-else-break,
|
||||||
|
no-else-continue,
|
||||||
|
no-else-raise,
|
||||||
|
no-else-return,
|
||||||
|
no-init, # added
|
||||||
|
no-member,
|
||||||
|
no-name-in-module,
|
||||||
|
no-self-use,
|
||||||
|
nonzero-method,
|
||||||
|
oct-method,
|
||||||
|
old-division,
|
||||||
|
old-ne-operator,
|
||||||
|
old-octal-literal,
|
||||||
|
old-raise-syntax,
|
||||||
|
parameter-unpacking,
|
||||||
|
print-statement,
|
||||||
|
raising-string,
|
||||||
|
range-builtin-not-iterating,
|
||||||
|
raw_input-builtin,
|
||||||
|
rdiv-method,
|
||||||
|
reduce-builtin,
|
||||||
|
relative-import,
|
||||||
|
reload-builtin,
|
||||||
|
round-builtin,
|
||||||
|
setslice-method,
|
||||||
|
signature-differs,
|
||||||
|
standarderror-builtin,
|
||||||
|
suppressed-message,
|
||||||
|
sys-max-int,
|
||||||
|
too-few-public-methods,
|
||||||
|
too-many-ancestors,
|
||||||
|
too-many-arguments,
|
||||||
|
too-many-boolean-expressions,
|
||||||
|
too-many-branches,
|
||||||
|
too-many-instance-attributes,
|
||||||
|
too-many-locals,
|
||||||
|
too-many-nested-blocks,
|
||||||
|
too-many-public-methods,
|
||||||
|
too-many-return-statements,
|
||||||
|
too-many-statements,
|
||||||
|
trailing-newlines,
|
||||||
|
unichr-builtin,
|
||||||
|
unicode-builtin,
|
||||||
|
unnecessary-pass,
|
||||||
|
unpacking-in-except,
|
||||||
|
useless-else-on-loop,
|
||||||
|
useless-object-inheritance,
|
||||||
|
useless-suppression,
|
||||||
|
using-cmp-argument,
|
||||||
|
wrong-import-order,
|
||||||
|
xrange-builtin,
|
||||||
|
zip-builtin-not-iterating,
|
||||||
|
|
||||||
|
|
||||||
|
[REPORTS]
|
||||||
|
|
||||||
|
# Set the output format. Available formats are text, parseable, colorized, msvs
|
||||||
|
# (visual studio) and html. You can also give a reporter class, eg
|
||||||
|
# mypackage.mymodule.MyReporterClass.
|
||||||
|
output-format=text
|
||||||
|
|
||||||
|
# Put messages in a separate file for each module / package specified on the
|
||||||
|
# command line instead of printing them on stdout. Reports (if any) will be
|
||||||
|
# written in a file name "pylint_global.[txt|html]". This option is deprecated
|
||||||
|
# and it will be removed in Pylint 2.0.
|
||||||
|
files-output=no
|
||||||
|
|
||||||
|
# Tells whether to display a full report or only the messages
|
||||||
|
reports=no
|
||||||
|
|
||||||
|
# Python expression which should return a note less than 10 (10 is the highest
|
||||||
|
# note). You have access to the variables errors warning, statement which
|
||||||
|
# respectively contain the number of errors / warnings messages and the total
|
||||||
|
# number of statements analyzed. This is used by the global evaluation report
|
||||||
|
# (RP0004).
|
||||||
|
evaluation=10.0 - ((float(5 * error + warning + refactor + convention) / statement) * 10)
|
||||||
|
|
||||||
|
# Template used to display messages. This is a python new-style format string
|
||||||
|
# used to format the message information. See doc for all details
|
||||||
|
#msg-template=
|
||||||
|
|
||||||
|
|
||||||
|
[BASIC]
|
||||||
|
|
||||||
|
# Good variable names which should always be accepted, separated by a comma
|
||||||
|
good-names=main,_,PRESUBMIT
|
||||||
|
|
||||||
|
# Bad variable names which should always be refused, separated by a comma
|
||||||
|
bad-names=
|
||||||
|
|
||||||
|
# Colon-delimited sets of names that determine each other's naming style when
|
||||||
|
# the name regexes allow several styles.
|
||||||
|
name-group=
|
||||||
|
|
||||||
|
# Include a hint for the correct naming format with invalid-name
|
||||||
|
include-naming-hint=no
|
||||||
|
|
||||||
|
# List of decorators that produce properties, such as abc.abstractproperty. Add
|
||||||
|
# to this list to register other decorators that produce valid properties.
|
||||||
|
property-classes=abc.abstractproperty,cached_property.cached_property,cached_property.threaded_cached_property,cached_property.cached_property_with_ttl,cached_property.threaded_cached_property_with_ttl
|
||||||
|
|
||||||
|
# Regular expression matching correct function names
|
||||||
|
function-rgx=^(?:(?P<exempt>setUp|tearDown|setUpModule|tearDownModule)|(?P<camel_case>_?[A-Z][a-zA-Z0-9]*)|(?P<snake_case>_?[a-z][a-z0-9_]*))$
|
||||||
|
|
||||||
|
# Regular expression matching correct variable names
|
||||||
|
variable-rgx=^[a-z][a-z0-9_]*$
|
||||||
|
|
||||||
|
# Regular expression matching correct constant names
|
||||||
|
const-rgx=^(_?[A-Z][A-Z0-9_]*|__[a-z0-9_]+__|_?[a-z][a-z0-9_]*)$
|
||||||
|
|
||||||
|
# Regular expression matching correct attribute names
|
||||||
|
attr-rgx=^_{0,2}[a-z][a-z0-9_]*$
|
||||||
|
|
||||||
|
# Regular expression matching correct argument names
|
||||||
|
argument-rgx=^[a-z][a-z0-9_]*$
|
||||||
|
|
||||||
|
# Regular expression matching correct class attribute names
|
||||||
|
class-attribute-rgx=^(_?[A-Z][A-Z0-9_]*|__[a-z0-9_]+__|_?[a-z][a-z0-9_]*)$
|
||||||
|
|
||||||
|
# Regular expression matching correct inline iteration names
|
||||||
|
inlinevar-rgx=^[a-z][a-z0-9_]*$
|
||||||
|
|
||||||
|
# Regular expression matching correct class names
|
||||||
|
class-rgx=^_?[A-Z][a-zA-Z0-9]*$
|
||||||
|
|
||||||
|
# Regular expression matching correct module names
|
||||||
|
module-rgx=^(_?[a-z][a-z0-9_]*|__init__)$
|
||||||
|
|
||||||
|
# Regular expression matching correct method names
|
||||||
|
method-rgx=(?x)^(?:(?P<exempt>_[a-z0-9_]+__|runTest|setUp|tearDown|setUpTestCase|tearDownTestCase|setupSelf|tearDownClass|setUpClass|(test|assert)_*[A-Z0-9][a-zA-Z0-9_]*|next)|(?P<camel_case>_{0,2}[A-Z][a-zA-Z0-9_]*)|(?P<snake_case>_{0,2}[a-z][a-z0-9_]*))$
|
||||||
|
|
||||||
|
# Regular expression which should only match function or class names that do
|
||||||
|
# not require a docstring.
|
||||||
|
no-docstring-rgx=(__.*__|main|test.*|.*test|.*Test)$
|
||||||
|
|
||||||
|
# Minimum line length for functions/classes that require docstrings, shorter
|
||||||
|
# ones are exempt.
|
||||||
|
docstring-min-length=10
|
||||||
|
|
||||||
|
|
||||||
|
[TYPECHECK]
|
||||||
|
|
||||||
|
# List of decorators that produce context managers, such as
|
||||||
|
# contextlib.contextmanager. Add to this list to register other decorators that
|
||||||
|
# produce valid context managers.
|
||||||
|
contextmanager-decorators=contextlib.contextmanager,contextlib2.contextmanager
|
||||||
|
|
||||||
|
# Tells whether missing members accessed in mixin class should be ignored. A
|
||||||
|
# mixin class is detected if its name ends with "mixin" (case insensitive).
|
||||||
|
ignore-mixin-members=yes
|
||||||
|
|
||||||
|
# List of module names for which member attributes should not be checked
|
||||||
|
# (useful for modules/projects where namespaces are manipulated during runtime
|
||||||
|
# and thus existing member attributes cannot be deduced by static analysis. It
|
||||||
|
# supports qualified module names, as well as Unix pattern matching.
|
||||||
|
ignored-modules=
|
||||||
|
|
||||||
|
# List of class names for which member attributes should not be checked (useful
|
||||||
|
# for classes with dynamically set attributes). This supports the use of
|
||||||
|
# qualified names.
|
||||||
|
ignored-classes=optparse.Values,thread._local,_thread._local
|
||||||
|
|
||||||
|
# List of members which are set dynamically and missed by pylint inference
|
||||||
|
# system, and so shouldn't trigger E1101 when accessed. Python regular
|
||||||
|
# expressions are accepted.
|
||||||
|
generated-members=
|
||||||
|
|
||||||
|
|
||||||
|
[FORMAT]
|
||||||
|
|
||||||
|
# Maximum number of characters on a single line.
|
||||||
|
max-line-length=80
|
||||||
|
|
||||||
|
# TODO(https://github.com/PyCQA/pylint/issues/3352): Direct pylint to exempt
|
||||||
|
# lines made too long by directives to pytype.
|
||||||
|
|
||||||
|
# Regexp for a line that is allowed to be longer than the limit.
|
||||||
|
ignore-long-lines=(?x)(
|
||||||
|
^\s*(\#\ )?<?https?://\S+>?$|
|
||||||
|
^\s*(from\s+\S+\s+)?import\s+.+$)
|
||||||
|
|
||||||
|
# Allow the body of an if to be on the same line as the test if there is no
|
||||||
|
# else.
|
||||||
|
single-line-if-stmt=yes
|
||||||
|
|
||||||
|
# List of optional constructs for which whitespace checking is disabled. `dict-
|
||||||
|
# separator` is used to allow tabulation in dicts, etc.: {1 : 1,\n222: 2}.
|
||||||
|
# `trailing-comma` allows a space between comma and closing bracket: (a, ).
|
||||||
|
# `empty-line` allows space-only lines.
|
||||||
|
no-space-check=
|
||||||
|
|
||||||
|
# Maximum number of lines in a module
|
||||||
|
max-module-lines=99999
|
||||||
|
|
||||||
|
# String used as indentation unit. The internal Google style guide mandates 2
|
||||||
|
# spaces. Google's externaly-published style guide says 4, consistent with
|
||||||
|
# PEP 8. Here, we use 2 spaces, for conformity with many open-sourced Google
|
||||||
|
# projects (like TensorFlow).
|
||||||
|
indent-string=' '
|
||||||
|
|
||||||
|
# Number of spaces of indent required inside a hanging or continued line.
|
||||||
|
indent-after-paren=4
|
||||||
|
|
||||||
|
# Expected format of line ending, e.g. empty (any line ending), LF or CRLF.
|
||||||
|
expected-line-ending-format=
|
||||||
|
|
||||||
|
|
||||||
|
[MISCELLANEOUS]
|
||||||
|
|
||||||
|
# List of note tags to take in consideration, separated by a comma.
|
||||||
|
notes=TODO
|
||||||
|
|
||||||
|
|
||||||
|
[STRING]
|
||||||
|
|
||||||
|
# This flag controls whether inconsistent-quotes generates a warning when the
|
||||||
|
# character used as a quote delimiter is used inconsistently within a module.
|
||||||
|
check-quote-consistency=yes
|
||||||
|
|
||||||
|
|
||||||
|
[VARIABLES]
|
||||||
|
|
||||||
|
# Tells whether we should check for unused import in __init__ files.
|
||||||
|
init-import=no
|
||||||
|
|
||||||
|
# A regular expression matching the name of dummy variables (i.e. expectedly
|
||||||
|
# not used).
|
||||||
|
dummy-variables-rgx=^\*{0,2}(_$|unused_|dummy_)
|
||||||
|
|
||||||
|
# List of additional names supposed to be defined in builtins. Remember that
|
||||||
|
# you should avoid to define new builtins when possible.
|
||||||
|
additional-builtins=
|
||||||
|
|
||||||
|
# List of strings which can identify a callback function by name. A callback
|
||||||
|
# name must start or end with one of those strings.
|
||||||
|
callbacks=cb_,_cb
|
||||||
|
|
||||||
|
# List of qualified module names which can have objects that can redefine
|
||||||
|
# builtins.
|
||||||
|
redefining-builtins-modules=six,six.moves,past.builtins,future.builtins,functools
|
||||||
|
|
||||||
|
|
||||||
|
[LOGGING]
|
||||||
|
|
||||||
|
# Logging modules to check that the string format arguments are in logging
|
||||||
|
# function parameter format
|
||||||
|
logging-modules=logging,absl.logging,tensorflow.io.logging
|
||||||
|
|
||||||
|
|
||||||
|
[SIMILARITIES]
|
||||||
|
|
||||||
|
# Minimum lines number of a similarity.
|
||||||
|
min-similarity-lines=4
|
||||||
|
|
||||||
|
# Ignore comments when computing similarities.
|
||||||
|
ignore-comments=yes
|
||||||
|
|
||||||
|
# Ignore docstrings when computing similarities.
|
||||||
|
ignore-docstrings=yes
|
||||||
|
|
||||||
|
# Ignore imports when computing similarities.
|
||||||
|
ignore-imports=no
|
||||||
|
|
||||||
|
|
||||||
|
[SPELLING]
|
||||||
|
|
||||||
|
# Spelling dictionary name. Available dictionaries: none. To make it working
|
||||||
|
# install python-enchant package.
|
||||||
|
spelling-dict=
|
||||||
|
|
||||||
|
# List of comma separated words that should not be checked.
|
||||||
|
spelling-ignore-words=
|
||||||
|
|
||||||
|
# A path to a file that contains private dictionary; one word per line.
|
||||||
|
spelling-private-dict-file=
|
||||||
|
|
||||||
|
# Tells whether to store unknown words to indicated private dictionary in
|
||||||
|
# --spelling-private-dict-file option instead of raising a message.
|
||||||
|
spelling-store-unknown-words=no
|
||||||
|
|
||||||
|
|
||||||
|
[IMPORTS]
|
||||||
|
|
||||||
|
# Deprecated modules which should not be used, separated by a comma
|
||||||
|
deprecated-modules=regsub,
|
||||||
|
TERMIOS,
|
||||||
|
Bastion,
|
||||||
|
rexec,
|
||||||
|
sets
|
||||||
|
|
||||||
|
# Create a graph of every (i.e. internal and external) dependencies in the
|
||||||
|
# given file (report RP0402 must not be disabled)
|
||||||
|
import-graph=
|
||||||
|
|
||||||
|
# Create a graph of external dependencies in the given file (report RP0402 must
|
||||||
|
# not be disabled)
|
||||||
|
ext-import-graph=
|
||||||
|
|
||||||
|
# Create a graph of internal dependencies in the given file (report RP0402 must
|
||||||
|
# not be disabled)
|
||||||
|
int-import-graph=
|
||||||
|
|
||||||
|
# Force import order to recognize a module as part of the standard
|
||||||
|
# compatibility libraries.
|
||||||
|
known-standard-library=
|
||||||
|
|
||||||
|
# Force import order to recognize a module as part of a third party library.
|
||||||
|
known-third-party=enchant, absl
|
||||||
|
|
||||||
|
# Analyse import fallback blocks. This can be used to support both Python 2 and
|
||||||
|
# 3 compatible code, which means that the block might have code that exists
|
||||||
|
# only in one or another interpreter, leading to false positives when analysed.
|
||||||
|
analyse-fallback-blocks=no
|
||||||
|
|
||||||
|
|
||||||
|
[CLASSES]
|
||||||
|
|
||||||
|
# List of method names used to declare (i.e. assign) instance attributes.
|
||||||
|
defining-attr-methods=__init__,
|
||||||
|
__new__,
|
||||||
|
setUp
|
||||||
|
|
||||||
|
# List of member names, which should be excluded from the protected access
|
||||||
|
# warning.
|
||||||
|
exclude-protected=_asdict,
|
||||||
|
_fields,
|
||||||
|
_replace,
|
||||||
|
_source,
|
||||||
|
_make
|
||||||
|
|
||||||
|
# List of valid names for the first argument in a class method.
|
||||||
|
valid-classmethod-first-arg=cls,
|
||||||
|
class_
|
||||||
|
|
||||||
|
# List of valid names for the first argument in a metaclass class method.
|
||||||
|
valid-metaclass-classmethod-first-arg=mcs
|
||||||
|
|
||||||
|
|
||||||
|
[EXCEPTIONS]
|
||||||
|
|
||||||
|
# Exceptions that will emit a warning when being caught. Defaults to
|
||||||
|
# "Exception"
|
||||||
|
overgeneral-exceptions=StandardError,
|
||||||
|
Exception,
|
||||||
|
BaseException
|
2
.style.yapf
Normal file
2
.style.yapf
Normal file
@ -0,0 +1,2 @@
|
|||||||
|
[style]
|
||||||
|
based_on_style = yapf
|
60
AUTHORS
Normal file
60
AUTHORS
Normal file
@ -0,0 +1,60 @@
|
|||||||
|
Contributors:
|
||||||
|
- Aidan O'Loan (aidanol at gmail dot com)
|
||||||
|
- Alan Browning (browning at google dot com)
|
||||||
|
- Alexandru Ardelean (ardeleanalex at gmail dot com)
|
||||||
|
- Brian Ledger (brianpl at google dot com)
|
||||||
|
- Charles Munger (clm at google dot com)
|
||||||
|
- Cheng Yi (cyi at google dot com)
|
||||||
|
- Christian Duvivier (cduvivier at google dot com)
|
||||||
|
- Christopher Degawa (ccom at randomderp dot com)
|
||||||
|
- Clement Courbet (courbet at google dot com)
|
||||||
|
- Djordje Pesut (djordje dot pesut at imgtec dot com)
|
||||||
|
- Frank Barchard (fbarchard at google dot com)
|
||||||
|
- Hui Su (huisu at google dot com)
|
||||||
|
- H. Vetinari (h dot vetinari at gmx dot com)
|
||||||
|
- Ilya Kurdyukov (jpegqs at gmail dot com)
|
||||||
|
- Ingvar Stepanyan (rreverser at google dot com)
|
||||||
|
- James Zern (jzern at google dot com)
|
||||||
|
- Jan Engelhardt (jengelh at medozas dot de)
|
||||||
|
- Jehan (jehan at girinstud dot io)
|
||||||
|
- Jeremy Maitin-Shepard (jbms at google dot com)
|
||||||
|
- Johann Koenig (johann dot koenig at duck dot com)
|
||||||
|
- Jovan Zelincevic (jovan dot zelincevic at imgtec dot com)
|
||||||
|
- Jyrki Alakuijala (jyrki at google dot com)
|
||||||
|
- Konstantin Ivlev (tomskside at gmail dot com)
|
||||||
|
- Lode Vandevenne (lode at google dot com)
|
||||||
|
- Lou Quillio (louquillio at google dot com)
|
||||||
|
- Mans Rullgard (mans at mansr dot com)
|
||||||
|
- Marcin Kowalczyk (qrczak at google dot com)
|
||||||
|
- Martin Olsson (mnemo at minimum dot se)
|
||||||
|
- Maryla Ustarroz-Calonge (maryla at google dot com)
|
||||||
|
- Mikołaj Zalewski (mikolajz at google dot com)
|
||||||
|
- Mislav Bradac (mislavm at google dot com)
|
||||||
|
- Nico Weber (thakis at chromium dot org)
|
||||||
|
- Noel Chromium (noel at chromium dot org)
|
||||||
|
- Nozomi Isozaki (nontan at pixiv dot co dot jp)
|
||||||
|
- Oliver Wolff (oliver dot wolff at qt dot io)
|
||||||
|
- Owen Rodley (orodley at google dot com)
|
||||||
|
- Parag Salasakar (img dot mips1 at gmail dot com)
|
||||||
|
- Pascal Massimino (pascal dot massimino at gmail dot com)
|
||||||
|
- Paweł Hajdan, Jr (phajdan dot jr at chromium dot org)
|
||||||
|
- Pierre Joye (pierre dot php at gmail dot com)
|
||||||
|
- Roberto Alanis (alanisbaez at google dot com)
|
||||||
|
- Sam Clegg (sbc at chromium dot org)
|
||||||
|
- Scott Hancher (seh at google dot com)
|
||||||
|
- Scott LaVarnway (slavarnway at google dot com)
|
||||||
|
- Scott Talbot (s at chikachow dot org)
|
||||||
|
- Slobodan Prijic (slobodan dot prijic at imgtec dot com)
|
||||||
|
- Somnath Banerjee (somnath dot banerjee at gmail dot com)
|
||||||
|
- Sriraman Tallam (tmsriram at google dot com)
|
||||||
|
- Tamar Levy (tamar dot levy at intel dot com)
|
||||||
|
- Thiago Perrotta (tperrotta at google dot com)
|
||||||
|
- Timothy Gu (timothygu99 at gmail dot com)
|
||||||
|
- Urvang Joshi (urvang at google dot com)
|
||||||
|
- Vikas Arora (vikasa at google dot com)
|
||||||
|
- Vincent Rabaud (vrabaud at google dot com)
|
||||||
|
- Vlad Tsyrklevich (vtsyrklevich at chromium dot org)
|
||||||
|
- Wan-Teh Chang (wtc at google dot com)
|
||||||
|
- Yang Zhang (yang dot zhang at arm dot com)
|
||||||
|
- Yannis Guyon (yguyon at google dot com)
|
||||||
|
- Zhi An Ng (zhin at chromium dot org)
|
295
Android.mk
Normal file
295
Android.mk
Normal file
@ -0,0 +1,295 @@
|
|||||||
|
# Ignore this file during non-NDK builds.
|
||||||
|
ifdef NDK_ROOT
|
||||||
|
LOCAL_PATH := $(call my-dir)
|
||||||
|
|
||||||
|
WEBP_CFLAGS := -Wall -DANDROID -DHAVE_MALLOC_H -DHAVE_PTHREAD -DWEBP_USE_THREAD
|
||||||
|
WEBP_CFLAGS += -fvisibility=hidden
|
||||||
|
|
||||||
|
ifeq ($(APP_OPTIM),release)
|
||||||
|
WEBP_CFLAGS += -finline-functions -ffast-math \
|
||||||
|
-ffunction-sections -fdata-sections
|
||||||
|
ifeq ($(findstring clang,$(NDK_TOOLCHAIN_VERSION)),)
|
||||||
|
WEBP_CFLAGS += -frename-registers -s
|
||||||
|
endif
|
||||||
|
endif
|
||||||
|
|
||||||
|
# mips32 fails to build with clang from r14b
|
||||||
|
# https://bugs.chromium.org/p/webp/issues/detail?id=343
|
||||||
|
ifeq ($(findstring clang,$(NDK_TOOLCHAIN_VERSION)),clang)
|
||||||
|
ifeq ($(TARGET_ARCH),mips)
|
||||||
|
clang_version := $(shell $(TARGET_CC) --version)
|
||||||
|
ifneq ($(findstring clang version 3,$(clang_version)),)
|
||||||
|
WEBP_CFLAGS += -no-integrated-as
|
||||||
|
endif
|
||||||
|
endif
|
||||||
|
endif
|
||||||
|
|
||||||
|
ifneq ($(findstring armeabi-v7a, $(TARGET_ARCH_ABI)),)
|
||||||
|
# Setting LOCAL_ARM_NEON will enable -mfpu=neon which may cause illegal
|
||||||
|
# instructions to be generated for armv7a code. Instead target the neon code
|
||||||
|
# specifically.
|
||||||
|
NEON := c.neon
|
||||||
|
USE_CPUFEATURES := yes
|
||||||
|
WEBP_CFLAGS += -DHAVE_CPU_FEATURES_H
|
||||||
|
else
|
||||||
|
NEON := c
|
||||||
|
endif
|
||||||
|
|
||||||
|
sharpyuv_srcs := \
|
||||||
|
sharpyuv/sharpyuv.c \
|
||||||
|
sharpyuv/sharpyuv_cpu.c \
|
||||||
|
sharpyuv/sharpyuv_csp.c \
|
||||||
|
sharpyuv/sharpyuv_dsp.c \
|
||||||
|
sharpyuv/sharpyuv_gamma.c \
|
||||||
|
sharpyuv/sharpyuv_neon.$(NEON) \
|
||||||
|
sharpyuv/sharpyuv_sse2.c \
|
||||||
|
|
||||||
|
dec_srcs := \
|
||||||
|
src/dec/alpha_dec.c \
|
||||||
|
src/dec/buffer_dec.c \
|
||||||
|
src/dec/frame_dec.c \
|
||||||
|
src/dec/idec_dec.c \
|
||||||
|
src/dec/io_dec.c \
|
||||||
|
src/dec/quant_dec.c \
|
||||||
|
src/dec/tree_dec.c \
|
||||||
|
src/dec/vp8_dec.c \
|
||||||
|
src/dec/vp8l_dec.c \
|
||||||
|
src/dec/webp_dec.c \
|
||||||
|
|
||||||
|
demux_srcs := \
|
||||||
|
src/demux/anim_decode.c \
|
||||||
|
src/demux/demux.c \
|
||||||
|
|
||||||
|
dsp_dec_srcs := \
|
||||||
|
src/dsp/alpha_processing.c \
|
||||||
|
src/dsp/alpha_processing_mips_dsp_r2.c \
|
||||||
|
src/dsp/alpha_processing_neon.$(NEON) \
|
||||||
|
src/dsp/alpha_processing_sse2.c \
|
||||||
|
src/dsp/alpha_processing_sse41.c \
|
||||||
|
src/dsp/cpu.c \
|
||||||
|
src/dsp/dec.c \
|
||||||
|
src/dsp/dec_clip_tables.c \
|
||||||
|
src/dsp/dec_mips32.c \
|
||||||
|
src/dsp/dec_mips_dsp_r2.c \
|
||||||
|
src/dsp/dec_msa.c \
|
||||||
|
src/dsp/dec_neon.$(NEON) \
|
||||||
|
src/dsp/dec_sse2.c \
|
||||||
|
src/dsp/dec_sse41.c \
|
||||||
|
src/dsp/filters.c \
|
||||||
|
src/dsp/filters_mips_dsp_r2.c \
|
||||||
|
src/dsp/filters_msa.c \
|
||||||
|
src/dsp/filters_neon.$(NEON) \
|
||||||
|
src/dsp/filters_sse2.c \
|
||||||
|
src/dsp/lossless.c \
|
||||||
|
src/dsp/lossless_mips_dsp_r2.c \
|
||||||
|
src/dsp/lossless_msa.c \
|
||||||
|
src/dsp/lossless_neon.$(NEON) \
|
||||||
|
src/dsp/lossless_sse2.c \
|
||||||
|
src/dsp/lossless_sse41.c \
|
||||||
|
src/dsp/rescaler.c \
|
||||||
|
src/dsp/rescaler_mips32.c \
|
||||||
|
src/dsp/rescaler_mips_dsp_r2.c \
|
||||||
|
src/dsp/rescaler_msa.c \
|
||||||
|
src/dsp/rescaler_neon.$(NEON) \
|
||||||
|
src/dsp/rescaler_sse2.c \
|
||||||
|
src/dsp/upsampling.c \
|
||||||
|
src/dsp/upsampling_mips_dsp_r2.c \
|
||||||
|
src/dsp/upsampling_msa.c \
|
||||||
|
src/dsp/upsampling_neon.$(NEON) \
|
||||||
|
src/dsp/upsampling_sse2.c \
|
||||||
|
src/dsp/upsampling_sse41.c \
|
||||||
|
src/dsp/yuv.c \
|
||||||
|
src/dsp/yuv_mips32.c \
|
||||||
|
src/dsp/yuv_mips_dsp_r2.c \
|
||||||
|
src/dsp/yuv_neon.$(NEON) \
|
||||||
|
src/dsp/yuv_sse2.c \
|
||||||
|
src/dsp/yuv_sse41.c \
|
||||||
|
|
||||||
|
dsp_enc_srcs := \
|
||||||
|
src/dsp/cost.c \
|
||||||
|
src/dsp/cost_mips32.c \
|
||||||
|
src/dsp/cost_mips_dsp_r2.c \
|
||||||
|
src/dsp/cost_neon.$(NEON) \
|
||||||
|
src/dsp/cost_sse2.c \
|
||||||
|
src/dsp/enc.c \
|
||||||
|
src/dsp/enc_mips32.c \
|
||||||
|
src/dsp/enc_mips_dsp_r2.c \
|
||||||
|
src/dsp/enc_msa.c \
|
||||||
|
src/dsp/enc_neon.$(NEON) \
|
||||||
|
src/dsp/enc_sse2.c \
|
||||||
|
src/dsp/enc_sse41.c \
|
||||||
|
src/dsp/lossless_enc.c \
|
||||||
|
src/dsp/lossless_enc_mips32.c \
|
||||||
|
src/dsp/lossless_enc_mips_dsp_r2.c \
|
||||||
|
src/dsp/lossless_enc_msa.c \
|
||||||
|
src/dsp/lossless_enc_neon.$(NEON) \
|
||||||
|
src/dsp/lossless_enc_sse2.c \
|
||||||
|
src/dsp/lossless_enc_sse41.c \
|
||||||
|
src/dsp/ssim.c \
|
||||||
|
src/dsp/ssim_sse2.c \
|
||||||
|
|
||||||
|
enc_srcs := \
|
||||||
|
src/enc/alpha_enc.c \
|
||||||
|
src/enc/analysis_enc.c \
|
||||||
|
src/enc/backward_references_cost_enc.c \
|
||||||
|
src/enc/backward_references_enc.c \
|
||||||
|
src/enc/config_enc.c \
|
||||||
|
src/enc/cost_enc.c \
|
||||||
|
src/enc/filter_enc.c \
|
||||||
|
src/enc/frame_enc.c \
|
||||||
|
src/enc/histogram_enc.c \
|
||||||
|
src/enc/iterator_enc.c \
|
||||||
|
src/enc/near_lossless_enc.c \
|
||||||
|
src/enc/picture_enc.c \
|
||||||
|
src/enc/picture_csp_enc.c \
|
||||||
|
src/enc/picture_psnr_enc.c \
|
||||||
|
src/enc/picture_rescale_enc.c \
|
||||||
|
src/enc/picture_tools_enc.c \
|
||||||
|
src/enc/predictor_enc.c \
|
||||||
|
src/enc/quant_enc.c \
|
||||||
|
src/enc/syntax_enc.c \
|
||||||
|
src/enc/token_enc.c \
|
||||||
|
src/enc/tree_enc.c \
|
||||||
|
src/enc/vp8l_enc.c \
|
||||||
|
src/enc/webp_enc.c \
|
||||||
|
|
||||||
|
mux_srcs := \
|
||||||
|
src/mux/anim_encode.c \
|
||||||
|
src/mux/muxedit.c \
|
||||||
|
src/mux/muxinternal.c \
|
||||||
|
src/mux/muxread.c \
|
||||||
|
|
||||||
|
utils_dec_srcs := \
|
||||||
|
src/utils/bit_reader_utils.c \
|
||||||
|
src/utils/color_cache_utils.c \
|
||||||
|
src/utils/filters_utils.c \
|
||||||
|
src/utils/huffman_utils.c \
|
||||||
|
src/utils/palette.c \
|
||||||
|
src/utils/quant_levels_dec_utils.c \
|
||||||
|
src/utils/random_utils.c \
|
||||||
|
src/utils/rescaler_utils.c \
|
||||||
|
src/utils/thread_utils.c \
|
||||||
|
src/utils/utils.c \
|
||||||
|
|
||||||
|
utils_enc_srcs := \
|
||||||
|
src/utils/bit_writer_utils.c \
|
||||||
|
src/utils/huffman_encode_utils.c \
|
||||||
|
src/utils/quant_levels_utils.c \
|
||||||
|
|
||||||
|
################################################################################
|
||||||
|
# libwebpdecoder
|
||||||
|
|
||||||
|
include $(CLEAR_VARS)
|
||||||
|
|
||||||
|
LOCAL_SRC_FILES := \
|
||||||
|
$(dec_srcs) \
|
||||||
|
$(dsp_dec_srcs) \
|
||||||
|
$(utils_dec_srcs) \
|
||||||
|
|
||||||
|
LOCAL_CFLAGS := $(WEBP_CFLAGS)
|
||||||
|
LOCAL_EXPORT_C_INCLUDES += $(LOCAL_PATH)/src
|
||||||
|
|
||||||
|
# prefer arm over thumb mode for performance gains
|
||||||
|
LOCAL_ARM_MODE := arm
|
||||||
|
|
||||||
|
ifeq ($(USE_CPUFEATURES),yes)
|
||||||
|
LOCAL_STATIC_LIBRARIES := cpufeatures
|
||||||
|
endif
|
||||||
|
|
||||||
|
LOCAL_MODULE := webpdecoder_static
|
||||||
|
|
||||||
|
include $(BUILD_STATIC_LIBRARY)
|
||||||
|
|
||||||
|
ifeq ($(ENABLE_SHARED),1)
|
||||||
|
include $(CLEAR_VARS)
|
||||||
|
|
||||||
|
LOCAL_WHOLE_STATIC_LIBRARIES := webpdecoder_static
|
||||||
|
|
||||||
|
LOCAL_MODULE := webpdecoder
|
||||||
|
|
||||||
|
include $(BUILD_SHARED_LIBRARY)
|
||||||
|
endif # ENABLE_SHARED=1
|
||||||
|
|
||||||
|
################################################################################
|
||||||
|
# libwebp
|
||||||
|
|
||||||
|
include $(CLEAR_VARS)
|
||||||
|
|
||||||
|
LOCAL_SRC_FILES := \
|
||||||
|
$(sharpyuv_srcs) \
|
||||||
|
$(dsp_enc_srcs) \
|
||||||
|
$(enc_srcs) \
|
||||||
|
$(utils_enc_srcs) \
|
||||||
|
|
||||||
|
LOCAL_CFLAGS := $(WEBP_CFLAGS)
|
||||||
|
LOCAL_EXPORT_C_INCLUDES += $(LOCAL_PATH)/src $(LOCAL_PATH)
|
||||||
|
|
||||||
|
# prefer arm over thumb mode for performance gains
|
||||||
|
LOCAL_ARM_MODE := arm
|
||||||
|
|
||||||
|
LOCAL_WHOLE_STATIC_LIBRARIES := webpdecoder_static
|
||||||
|
|
||||||
|
LOCAL_MODULE := webp
|
||||||
|
|
||||||
|
ifeq ($(ENABLE_SHARED),1)
|
||||||
|
include $(BUILD_SHARED_LIBRARY)
|
||||||
|
else
|
||||||
|
include $(BUILD_STATIC_LIBRARY)
|
||||||
|
endif
|
||||||
|
|
||||||
|
################################################################################
|
||||||
|
# libwebpdemux
|
||||||
|
|
||||||
|
include $(CLEAR_VARS)
|
||||||
|
|
||||||
|
LOCAL_SRC_FILES := $(demux_srcs)
|
||||||
|
|
||||||
|
LOCAL_CFLAGS := $(WEBP_CFLAGS)
|
||||||
|
LOCAL_EXPORT_C_INCLUDES += $(LOCAL_PATH)/src
|
||||||
|
|
||||||
|
# prefer arm over thumb mode for performance gains
|
||||||
|
LOCAL_ARM_MODE := arm
|
||||||
|
|
||||||
|
LOCAL_MODULE := webpdemux
|
||||||
|
|
||||||
|
ifeq ($(ENABLE_SHARED),1)
|
||||||
|
LOCAL_SHARED_LIBRARIES := webp
|
||||||
|
include $(BUILD_SHARED_LIBRARY)
|
||||||
|
else
|
||||||
|
LOCAL_STATIC_LIBRARIES := webp
|
||||||
|
include $(BUILD_STATIC_LIBRARY)
|
||||||
|
endif
|
||||||
|
|
||||||
|
################################################################################
|
||||||
|
# libwebpmux
|
||||||
|
|
||||||
|
include $(CLEAR_VARS)
|
||||||
|
|
||||||
|
LOCAL_SRC_FILES := $(mux_srcs)
|
||||||
|
|
||||||
|
LOCAL_CFLAGS := $(WEBP_CFLAGS)
|
||||||
|
LOCAL_EXPORT_C_INCLUDES += $(LOCAL_PATH)/src
|
||||||
|
|
||||||
|
# prefer arm over thumb mode for performance gains
|
||||||
|
LOCAL_ARM_MODE := arm
|
||||||
|
|
||||||
|
LOCAL_MODULE := webpmux
|
||||||
|
|
||||||
|
ifeq ($(ENABLE_SHARED),1)
|
||||||
|
LOCAL_SHARED_LIBRARIES := webp
|
||||||
|
include $(BUILD_SHARED_LIBRARY)
|
||||||
|
else
|
||||||
|
LOCAL_STATIC_LIBRARIES := webp
|
||||||
|
include $(BUILD_STATIC_LIBRARY)
|
||||||
|
endif
|
||||||
|
|
||||||
|
################################################################################
|
||||||
|
|
||||||
|
WEBP_SRC_PATH := $(LOCAL_PATH)
|
||||||
|
include $(WEBP_SRC_PATH)/imageio/Android.mk
|
||||||
|
include $(WEBP_SRC_PATH)/examples/Android.mk
|
||||||
|
|
||||||
|
ifeq ($(USE_CPUFEATURES),yes)
|
||||||
|
$(call import-module,android/cpufeatures)
|
||||||
|
endif
|
||||||
|
endif # NDK_ROOT
|
802
CMakeLists.txt
Normal file
802
CMakeLists.txt
Normal file
@ -0,0 +1,802 @@
|
|||||||
|
# Copyright (c) 2020 Google LLC.
|
||||||
|
#
|
||||||
|
# Use of this source code is governed by a BSD-style license
|
||||||
|
# that can be found in the LICENSE file in the root of the source
|
||||||
|
# tree. An additional intellectual property rights grant can be found
|
||||||
|
# in the file PATENTS. All contributing project authors may
|
||||||
|
# be found in the AUTHORS file in the root of the source tree.
|
||||||
|
|
||||||
|
if(APPLE)
|
||||||
|
cmake_minimum_required(VERSION 3.17)
|
||||||
|
else()
|
||||||
|
cmake_minimum_required(VERSION 3.7)
|
||||||
|
endif()
|
||||||
|
|
||||||
|
if(POLICY CMP0072)
|
||||||
|
cmake_policy(SET CMP0072 NEW)
|
||||||
|
endif()
|
||||||
|
|
||||||
|
project(WebP C)
|
||||||
|
|
||||||
|
# Options for coder / decoder executables.
|
||||||
|
if(BUILD_SHARED_LIBS)
|
||||||
|
set(WEBP_LINK_STATIC_DEFAULT OFF)
|
||||||
|
else()
|
||||||
|
set(WEBP_LINK_STATIC_DEFAULT ON)
|
||||||
|
endif()
|
||||||
|
option(WEBP_LINK_STATIC
|
||||||
|
"Link using static libraries. If OFF, use dynamic libraries."
|
||||||
|
${WEBP_LINK_STATIC_DEFAULT})
|
||||||
|
if(NOT EMSCRIPTEN)
|
||||||
|
# Disable SIMD on Emscripten by default, as it's a new unstable Wasm feature.
|
||||||
|
# Users can still explicitly opt-in to make a SIMD-enabled build.
|
||||||
|
set(WEBP_ENABLE_SIMD_DEFAULT ON)
|
||||||
|
endif()
|
||||||
|
option(WEBP_ENABLE_SIMD "Enable any SIMD optimization."
|
||||||
|
${WEBP_ENABLE_SIMD_DEFAULT})
|
||||||
|
option(WEBP_BUILD_ANIM_UTILS "Build animation utilities." ON)
|
||||||
|
option(WEBP_BUILD_CWEBP "Build the cwebp command line tool." ON)
|
||||||
|
option(WEBP_BUILD_DWEBP "Build the dwebp command line tool." ON)
|
||||||
|
option(WEBP_BUILD_GIF2WEBP "Build the gif2webp conversion tool." ON)
|
||||||
|
option(WEBP_BUILD_IMG2WEBP "Build the img2webp animation tool." ON)
|
||||||
|
option(WEBP_BUILD_VWEBP "Build the vwebp viewer tool." ON)
|
||||||
|
option(WEBP_BUILD_WEBPINFO "Build the webpinfo command line tool." ON)
|
||||||
|
option(WEBP_BUILD_LIBWEBPMUX "Build the libwebpmux library." ON)
|
||||||
|
option(WEBP_BUILD_WEBPMUX "Build the webpmux command line tool." ON)
|
||||||
|
option(WEBP_BUILD_EXTRAS "Build extras." ON)
|
||||||
|
option(WEBP_BUILD_WEBP_JS "Emscripten build of webp.js." OFF)
|
||||||
|
option(WEBP_USE_THREAD "Enable threading support" ON)
|
||||||
|
option(WEBP_NEAR_LOSSLESS "Enable near-lossless encoding" ON)
|
||||||
|
option(WEBP_ENABLE_SWAP_16BIT_CSP "Enable byte swap for 16 bit colorspaces."
|
||||||
|
OFF)
|
||||||
|
set(WEBP_BITTRACE "0" CACHE STRING "Bit trace mode (0=none, 1=bit, 2=bytes)")
|
||||||
|
set_property(CACHE WEBP_BITTRACE PROPERTY STRINGS 0 1 2)
|
||||||
|
|
||||||
|
if(WEBP_LINK_STATIC)
|
||||||
|
if(WIN32)
|
||||||
|
set(CMAKE_FIND_LIBRARY_SUFFIXES .lib .a ${CMAKE_FIND_LIBRARY_SUFFIXES})
|
||||||
|
else()
|
||||||
|
set(CMAKE_FIND_LIBRARY_SUFFIXES .a ${CMAKE_FIND_LIBRARY_SUFFIXES})
|
||||||
|
endif()
|
||||||
|
set(CMAKE_POSITION_INDEPENDENT_CODE ON)
|
||||||
|
# vwebp does not compile on Ubuntu with static libraries so disabling it for
|
||||||
|
# now.
|
||||||
|
set(WEBP_BUILD_VWEBP OFF)
|
||||||
|
endif()
|
||||||
|
|
||||||
|
# Option needed for handling Unicode file names on Windows.
|
||||||
|
if(WIN32)
|
||||||
|
option(WEBP_UNICODE "Build Unicode executables." ON)
|
||||||
|
endif()
|
||||||
|
|
||||||
|
if(WEBP_BUILD_WEBP_JS)
|
||||||
|
set(WEBP_BUILD_ANIM_UTILS OFF)
|
||||||
|
set(WEBP_BUILD_CWEBP OFF)
|
||||||
|
set(WEBP_BUILD_DWEBP OFF)
|
||||||
|
set(WEBP_BUILD_GIF2WEBP OFF)
|
||||||
|
set(WEBP_BUILD_IMG2WEBP OFF)
|
||||||
|
set(WEBP_BUILD_VWEBP OFF)
|
||||||
|
set(WEBP_BUILD_WEBPINFO OFF)
|
||||||
|
set(WEBP_BUILD_WEBPMUX OFF)
|
||||||
|
set(WEBP_BUILD_EXTRAS OFF)
|
||||||
|
set(WEBP_USE_THREAD OFF)
|
||||||
|
|
||||||
|
if(WEBP_ENABLE_SIMD)
|
||||||
|
message(NOTICE
|
||||||
|
"wasm2js does not support SIMD, disabling webp.js generation.")
|
||||||
|
endif()
|
||||||
|
endif()
|
||||||
|
|
||||||
|
set(SHARPYUV_DEP_LIBRARIES)
|
||||||
|
set(SHARPYUV_DEP_INCLUDE_DIRS)
|
||||||
|
set(WEBP_DEP_LIBRARIES)
|
||||||
|
set(WEBP_DEP_INCLUDE_DIRS)
|
||||||
|
|
||||||
|
if(NOT CMAKE_BUILD_TYPE)
|
||||||
|
set(CMAKE_BUILD_TYPE "Release"
|
||||||
|
CACHE STRING "Build type: Release, Debug, MinSizeRel or RelWithDebInfo"
|
||||||
|
FORCE)
|
||||||
|
endif()
|
||||||
|
|
||||||
|
# Include dependencies.
|
||||||
|
if(WEBP_BUILD_ANIM_UTILS
|
||||||
|
OR WEBP_BUILD_CWEBP
|
||||||
|
OR WEBP_BUILD_DWEBP
|
||||||
|
OR WEBP_BUILD_EXTRAS
|
||||||
|
OR WEBP_BUILD_GIF2WEBP
|
||||||
|
OR WEBP_BUILD_IMG2WEBP)
|
||||||
|
set(WEBP_FIND_IMG_LIBS TRUE)
|
||||||
|
else()
|
||||||
|
set(WEBP_FIND_IMG_LIBS FALSE)
|
||||||
|
endif()
|
||||||
|
include(cmake/deps.cmake)
|
||||||
|
include(GNUInstallDirs)
|
||||||
|
|
||||||
|
if(BUILD_SHARED_LIBS AND NOT DEFINED CMAKE_INSTALL_RPATH)
|
||||||
|
# Set the rpath to match autoconf/libtool behavior. Note this must be set
|
||||||
|
# before target creation.
|
||||||
|
set(CMAKE_INSTALL_RPATH "${CMAKE_INSTALL_PREFIX}/${CMAKE_INSTALL_LIBDIR}")
|
||||||
|
endif()
|
||||||
|
|
||||||
|
# ##############################################################################
|
||||||
|
# Options.
|
||||||
|
if(WEBP_ENABLE_SWAP_16BIT_CSP)
|
||||||
|
add_definitions(-DWEBP_SWAP_16BIT_CSP=1)
|
||||||
|
endif()
|
||||||
|
|
||||||
|
if(NOT WEBP_BITTRACE STREQUAL "0")
|
||||||
|
add_definitions(-DBITTRACE=${WEBP_BITTRACE})
|
||||||
|
endif()
|
||||||
|
|
||||||
|
if(WEBP_UNICODE)
|
||||||
|
# Windows recommends setting both UNICODE and _UNICODE.
|
||||||
|
add_definitions(-DUNICODE -D_UNICODE)
|
||||||
|
endif()
|
||||||
|
|
||||||
|
if(MSVC AND BUILD_SHARED_LIBS)
|
||||||
|
add_definitions(-DWEBP_DLL)
|
||||||
|
endif()
|
||||||
|
|
||||||
|
# pkg-config variables used by *.pc.in.
|
||||||
|
set(prefix ${CMAKE_INSTALL_PREFIX})
|
||||||
|
set(exec_prefix "\${prefix}")
|
||||||
|
if(IS_ABSOLUTE "${CMAKE_INSTALL_LIBDIR}")
|
||||||
|
set(libdir "${CMAKE_INSTALL_LIBDIR}")
|
||||||
|
else()
|
||||||
|
set(libdir "\${exec_prefix}/${CMAKE_INSTALL_LIBDIR}")
|
||||||
|
endif()
|
||||||
|
if(IS_ABSOLUTE "${CMAKE_INSTALL_INCLUDEDIR}")
|
||||||
|
set(includedir "${CMAKE_INSTALL_INCLUDEDIR}")
|
||||||
|
else()
|
||||||
|
set(includedir "\${prefix}/${CMAKE_INSTALL_INCLUDEDIR}")
|
||||||
|
endif()
|
||||||
|
set(PTHREAD_LIBS ${CMAKE_THREAD_LIBS_INIT})
|
||||||
|
set(INSTALLED_LIBRARIES)
|
||||||
|
|
||||||
|
if(MSVC)
|
||||||
|
# match the naming convention used by nmake
|
||||||
|
set(webp_libname_prefix "lib")
|
||||||
|
set(CMAKE_SHARED_LIBRARY_PREFIX "${webp_libname_prefix}")
|
||||||
|
set(CMAKE_IMPORT_LIBRARY_PREFIX "${webp_libname_prefix}")
|
||||||
|
set(CMAKE_STATIC_LIBRARY_PREFIX "${webp_libname_prefix}")
|
||||||
|
endif()
|
||||||
|
|
||||||
|
set(CMAKE_C_VISIBILITY_PRESET hidden)
|
||||||
|
|
||||||
|
# ##############################################################################
|
||||||
|
# Android only.
|
||||||
|
if(ANDROID)
|
||||||
|
include_directories(${ANDROID_NDK}/sources/android/cpufeatures)
|
||||||
|
add_library(cpufeatures-webp STATIC
|
||||||
|
${ANDROID_NDK}/sources/android/cpufeatures/cpu-features.c)
|
||||||
|
list(APPEND INSTALLED_LIBRARIES cpufeatures-webp)
|
||||||
|
target_link_libraries(cpufeatures-webp dl)
|
||||||
|
set(SHARPYUV_DEP_LIBRARIES ${SHARPYUV_DEP_LIBRARIES} cpufeatures-webp)
|
||||||
|
set(WEBP_DEP_LIBRARIES ${WEBP_DEP_LIBRARIES} cpufeatures-webp)
|
||||||
|
set(cpufeatures_include_dir ${ANDROID_NDK}/sources/android/cpufeatures)
|
||||||
|
set(SHARPYUV_DEP_INCLUDE_DIRS ${SHARPYUV_DEP_INCLUDE_DIRS}
|
||||||
|
${cpufeatures_include_dir})
|
||||||
|
set(WEBP_DEP_INCLUDE_DIRS ${WEBP_DEP_INCLUDE_DIRS} ${cpufeatures_include_dir})
|
||||||
|
add_definitions(-DHAVE_CPU_FEATURES_H=1)
|
||||||
|
set(HAVE_CPU_FEATURES_H 1)
|
||||||
|
else()
|
||||||
|
set(HAVE_CPU_FEATURES_H 0)
|
||||||
|
endif()
|
||||||
|
|
||||||
|
function(configure_pkg_config FILE)
|
||||||
|
configure_file("${CMAKE_CURRENT_SOURCE_DIR}/${FILE}.in"
|
||||||
|
"${CMAKE_CURRENT_BINARY_DIR}/${FILE}" @ONLY)
|
||||||
|
|
||||||
|
if(HAVE_MATH_LIBRARY)
|
||||||
|
# MSVC doesn't have libm
|
||||||
|
file(READ ${CMAKE_CURRENT_BINARY_DIR}/${FILE} data)
|
||||||
|
string(REPLACE "-lm" "" data ${data})
|
||||||
|
file(WRITE ${CMAKE_CURRENT_BINARY_DIR}/${FILE} ${data})
|
||||||
|
endif()
|
||||||
|
|
||||||
|
install(FILES "${CMAKE_CURRENT_BINARY_DIR}/${FILE}"
|
||||||
|
DESTINATION ${CMAKE_INSTALL_LIBDIR}/pkgconfig)
|
||||||
|
endfunction()
|
||||||
|
|
||||||
|
# ##############################################################################
|
||||||
|
# WebP source files. Read the Makefile.am to get the source files.
|
||||||
|
|
||||||
|
# We expect the Makefiles to define the sources as defined in the first regex.
|
||||||
|
# E.g.: libimagedec_la_SOURCES = image_dec.c image_dec.h
|
||||||
|
function(parse_Makefile_am FOLDER VAR SRC_REGEX)
|
||||||
|
file(READ ${FOLDER}/Makefile.am MAKEFILE_AM)
|
||||||
|
string(REGEX MATCHALL "${SRC_REGEX}_SOURCES[ ]*\\+?=[ ]+[0-9a-z\\._ ]*"
|
||||||
|
FILES_PER_LINE ${MAKEFILE_AM})
|
||||||
|
set(SRCS ${${VAR}})
|
||||||
|
foreach(FILES ${FILES_PER_LINE})
|
||||||
|
string(FIND ${FILES} "=" OFFSET)
|
||||||
|
math(EXPR OFFSET "${OFFSET} + 2")
|
||||||
|
string(SUBSTRING ${FILES} ${OFFSET} -1 FILES)
|
||||||
|
if(FILES)
|
||||||
|
string(REGEX MATCHALL "[0-9a-z\\._]+" FILES ${FILES})
|
||||||
|
foreach(FILE ${FILES})
|
||||||
|
list(APPEND SRCS ${FOLDER}/${FILE})
|
||||||
|
endforeach()
|
||||||
|
endif()
|
||||||
|
endforeach()
|
||||||
|
set(${VAR} ${SRCS} PARENT_SCOPE)
|
||||||
|
endfunction()
|
||||||
|
|
||||||
|
set(WEBP_SRC_DIR ${CMAKE_CURRENT_SOURCE_DIR}/src)
|
||||||
|
parse_makefile_am(${WEBP_SRC_DIR}/dec "WEBP_DEC_SRCS" "")
|
||||||
|
parse_makefile_am(${WEBP_SRC_DIR}/demux "WEBP_DEMUX_SRCS" "")
|
||||||
|
parse_makefile_am(${WEBP_SRC_DIR}/dsp "WEBP_DSP_COMMON_SRCS" "COMMON")
|
||||||
|
parse_makefile_am(${WEBP_SRC_DIR}/dsp "WEBP_DSP_ENC_SRCS" "ENC")
|
||||||
|
parse_makefile_am(${WEBP_SRC_DIR}/dsp "WEBP_DSP_ENC_SRCS" "dsp_[^ ]*")
|
||||||
|
parse_makefile_am(${WEBP_SRC_DIR}/dsp "WEBP_DSP_DEC_SRCS" "decode_[^ ]*")
|
||||||
|
parse_makefile_am(${WEBP_SRC_DIR}/enc "WEBP_ENC_SRCS" "")
|
||||||
|
parse_makefile_am(${WEBP_SRC_DIR}/utils "WEBP_UTILS_COMMON_SRCS" "COMMON")
|
||||||
|
parse_makefile_am(${WEBP_SRC_DIR}/utils "WEBP_UTILS_ENC_SRCS" "ENC")
|
||||||
|
parse_makefile_am(${WEBP_SRC_DIR}/utils "WEBP_UTILS_DEC_SRCS" "decode_[^ ]*")
|
||||||
|
|
||||||
|
# Remove the files specific to SIMD we don't use.
|
||||||
|
foreach(FILE ${WEBP_SIMD_FILES_NOT_TO_INCLUDE})
|
||||||
|
list(REMOVE_ITEM WEBP_DSP_ENC_SRCS ${FILE})
|
||||||
|
list(REMOVE_ITEM WEBP_DSP_DEC_SRCS ${FILE})
|
||||||
|
endforeach()
|
||||||
|
|
||||||
|
# Generate the config.h file.
|
||||||
|
configure_file(${CMAKE_CURRENT_LIST_DIR}/cmake/config.h.in
|
||||||
|
${CMAKE_CURRENT_BINARY_DIR}/src/webp/config.h @ONLY)
|
||||||
|
add_definitions(-DHAVE_CONFIG_H)
|
||||||
|
|
||||||
|
# Set the version numbers.
|
||||||
|
macro(set_version FILE TARGET_NAME NAME_IN_MAKEFILE)
|
||||||
|
file(READ ${CMAKE_CURRENT_SOURCE_DIR}/${FILE} SOURCE_FILE)
|
||||||
|
string(REGEX MATCH
|
||||||
|
"${NAME_IN_MAKEFILE}_la_LDFLAGS[^\n]* -version-info [0-9:]+" TMP
|
||||||
|
${SOURCE_FILE})
|
||||||
|
string(REGEX MATCH "[0-9:]+" TMP ${TMP})
|
||||||
|
string(REGEX REPLACE ":" " " LT_VERSION ${TMP})
|
||||||
|
|
||||||
|
# See the libtool docs for more information:
|
||||||
|
# https://www.gnu.org/software/libtool/manual/libtool.html#Updating-version-info
|
||||||
|
#
|
||||||
|
# c=<current>, a=<age>, r=<revision>
|
||||||
|
#
|
||||||
|
# libtool generates a .so file as .so.[c-a].a.r, while -version-info c:r:a is
|
||||||
|
# passed to libtool.
|
||||||
|
#
|
||||||
|
# We set FULL = [c-a].a.r and MAJOR = [c-a].
|
||||||
|
separate_arguments(LT_VERSION)
|
||||||
|
list(GET LT_VERSION 0 LT_CURRENT)
|
||||||
|
list(GET LT_VERSION 1 LT_REVISION)
|
||||||
|
list(GET LT_VERSION 2 LT_AGE)
|
||||||
|
math(EXPR LT_CURRENT_MINUS_AGE "${LT_CURRENT} - ${LT_AGE}")
|
||||||
|
|
||||||
|
set_target_properties(
|
||||||
|
${TARGET_NAME}
|
||||||
|
PROPERTIES VERSION ${LT_CURRENT_MINUS_AGE}.${LT_AGE}.${LT_REVISION}
|
||||||
|
SOVERSION ${LT_CURRENT_MINUS_AGE})
|
||||||
|
if(APPLE)
|
||||||
|
# For compatibility, set MACHO_COMPATIBILITY_VERSION and
|
||||||
|
# MACHO_CURRENT_VERSION to match libtool. These properties were introduced
|
||||||
|
# in 3.17:
|
||||||
|
# https://cmake.org/cmake/help/latest/prop_tgt/MACHO_COMPATIBILITY_VERSION.html
|
||||||
|
math(EXPR LIBWEBP_MACHO_COMPATIBILITY_VERSION "${LT_CURRENT} + 1")
|
||||||
|
set_target_properties(
|
||||||
|
${TARGET_NAME}
|
||||||
|
PROPERTIES MACHO_COMPATIBILITY_VERSION
|
||||||
|
${LIBWEBP_MACHO_COMPATIBILITY_VERSION}
|
||||||
|
MACHO_CURRENT_VERSION
|
||||||
|
${LIBWEBP_MACHO_COMPATIBILITY_VERSION}.${LT_REVISION})
|
||||||
|
endif()
|
||||||
|
endmacro()
|
||||||
|
|
||||||
|
# ##############################################################################
|
||||||
|
# Build the webpdecoder library.
|
||||||
|
|
||||||
|
# Creates a source file with an unused stub function in $CMAKE_BINARY_DIR and
|
||||||
|
# adds it to the specified target. Currently used only with Xcode.
|
||||||
|
#
|
||||||
|
# See also:
|
||||||
|
# https://cmake.org/cmake/help/v3.18/command/add_library.html#object-libraries
|
||||||
|
# "Some native build systems (such as Xcode) may not like targets that have only
|
||||||
|
# object files, so consider adding at least one real source file to any target
|
||||||
|
# that references $<TARGET_OBJECTS:objlib>."
|
||||||
|
function(libwebp_add_stub_file TARGET)
|
||||||
|
set(stub_source_dir "${CMAKE_BINARY_DIR}")
|
||||||
|
set(stub_source_file "${stub_source_dir}/libwebp_${TARGET}_stub.c")
|
||||||
|
set(stub_source_code
|
||||||
|
"// Generated file. DO NOT EDIT!\n"
|
||||||
|
"// C source file created for target ${TARGET}.\n"
|
||||||
|
"void libwebp_${TARGET}_stub_function(void)\;\n"
|
||||||
|
"void libwebp_${TARGET}_stub_function(void) {}\n")
|
||||||
|
file(WRITE "${stub_source_file}" ${stub_source_code})
|
||||||
|
|
||||||
|
target_sources(${TARGET} PRIVATE ${stub_source_file})
|
||||||
|
endfunction()
|
||||||
|
|
||||||
|
parse_makefile_am(${CMAKE_CURRENT_SOURCE_DIR}/sharpyuv "WEBP_SHARPYUV_SRCS" "")
|
||||||
|
add_library(sharpyuv ${WEBP_SHARPYUV_SRCS})
|
||||||
|
target_link_libraries(sharpyuv ${SHARPYUV_DEP_LIBRARIES})
|
||||||
|
set_version(sharpyuv/Makefile.am sharpyuv sharpyuv)
|
||||||
|
target_include_directories(
|
||||||
|
sharpyuv PRIVATE ${CMAKE_CURRENT_BINARY_DIR} ${CMAKE_CURRENT_SOURCE_DIR}
|
||||||
|
${CMAKE_CURRENT_SOURCE_DIR}/src)
|
||||||
|
set_target_properties(
|
||||||
|
sharpyuv
|
||||||
|
PROPERTIES PUBLIC_HEADER "${CMAKE_CURRENT_SOURCE_DIR}/sharpyuv/sharpyuv.h;\
|
||||||
|
${CMAKE_CURRENT_SOURCE_DIR}/sharpyuv/sharpyuv_csp.h")
|
||||||
|
configure_pkg_config("sharpyuv/libsharpyuv.pc")
|
||||||
|
install(
|
||||||
|
TARGETS sharpyuv
|
||||||
|
EXPORT ${PROJECT_NAME}Targets
|
||||||
|
PUBLIC_HEADER DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}/webp/sharpyuv
|
||||||
|
INCLUDES
|
||||||
|
DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}
|
||||||
|
${CMAKE_INSTALL_INCLUDEDIR}/webp
|
||||||
|
ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR}
|
||||||
|
LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
|
||||||
|
RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR})
|
||||||
|
|
||||||
|
if(MSVC)
|
||||||
|
# avoid security warnings for e.g., fopen() used in the examples.
|
||||||
|
add_definitions(-D_CRT_SECURE_NO_WARNINGS)
|
||||||
|
else()
|
||||||
|
add_compile_options(-Wall)
|
||||||
|
endif()
|
||||||
|
include_directories(${WEBP_DEP_INCLUDE_DIRS})
|
||||||
|
add_library(webpdecode OBJECT ${WEBP_DEC_SRCS})
|
||||||
|
target_include_directories(webpdecode PRIVATE ${CMAKE_CURRENT_BINARY_DIR}
|
||||||
|
${CMAKE_CURRENT_SOURCE_DIR})
|
||||||
|
add_library(webpdspdecode OBJECT ${WEBP_DSP_COMMON_SRCS} ${WEBP_DSP_DEC_SRCS})
|
||||||
|
target_include_directories(webpdspdecode PRIVATE ${CMAKE_CURRENT_BINARY_DIR}
|
||||||
|
${CMAKE_CURRENT_SOURCE_DIR})
|
||||||
|
add_library(webputilsdecode OBJECT ${WEBP_UTILS_COMMON_SRCS}
|
||||||
|
${WEBP_UTILS_DEC_SRCS})
|
||||||
|
target_include_directories(webputilsdecode PRIVATE ${CMAKE_CURRENT_BINARY_DIR}
|
||||||
|
${CMAKE_CURRENT_SOURCE_DIR})
|
||||||
|
add_library(
|
||||||
|
webpdecoder $<TARGET_OBJECTS:webpdecode> $<TARGET_OBJECTS:webpdspdecode>
|
||||||
|
$<TARGET_OBJECTS:webputilsdecode>)
|
||||||
|
if(XCODE)
|
||||||
|
libwebp_add_stub_file(webpdecoder)
|
||||||
|
endif()
|
||||||
|
target_link_libraries(webpdecoder ${WEBP_DEP_LIBRARIES})
|
||||||
|
target_include_directories(
|
||||||
|
webpdecoder PRIVATE ${CMAKE_CURRENT_BINARY_DIR} ${CMAKE_CURRENT_SOURCE_DIR}
|
||||||
|
INTERFACE $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}>
|
||||||
|
$<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}>)
|
||||||
|
set_target_properties(
|
||||||
|
webpdecoder
|
||||||
|
PROPERTIES PUBLIC_HEADER "${CMAKE_CURRENT_SOURCE_DIR}/src/webp/decode.h;\
|
||||||
|
${CMAKE_CURRENT_SOURCE_DIR}/src/webp/types.h")
|
||||||
|
|
||||||
|
configure_pkg_config("src/libwebpdecoder.pc")
|
||||||
|
|
||||||
|
# Build the webp library.
|
||||||
|
add_library(webpencode OBJECT ${WEBP_ENC_SRCS})
|
||||||
|
target_include_directories(
|
||||||
|
webpencode PRIVATE ${CMAKE_CURRENT_BINARY_DIR} ${CMAKE_CURRENT_SOURCE_DIR}
|
||||||
|
${CMAKE_CURRENT_SOURCE_DIR}/src)
|
||||||
|
add_library(webpdsp OBJECT ${WEBP_DSP_COMMON_SRCS} ${WEBP_DSP_DEC_SRCS}
|
||||||
|
${WEBP_DSP_ENC_SRCS})
|
||||||
|
target_include_directories(webpdsp PRIVATE ${CMAKE_CURRENT_BINARY_DIR}
|
||||||
|
${CMAKE_CURRENT_SOURCE_DIR})
|
||||||
|
add_library(webputils OBJECT ${WEBP_UTILS_COMMON_SRCS} ${WEBP_UTILS_DEC_SRCS}
|
||||||
|
${WEBP_UTILS_ENC_SRCS})
|
||||||
|
target_include_directories(webputils PRIVATE ${CMAKE_CURRENT_BINARY_DIR}
|
||||||
|
${CMAKE_CURRENT_SOURCE_DIR})
|
||||||
|
add_library(webp $<TARGET_OBJECTS:webpdecode> $<TARGET_OBJECTS:webpdsp>
|
||||||
|
$<TARGET_OBJECTS:webpencode> $<TARGET_OBJECTS:webputils>)
|
||||||
|
target_link_libraries(webp sharpyuv)
|
||||||
|
if(XCODE)
|
||||||
|
libwebp_add_stub_file(webp)
|
||||||
|
endif()
|
||||||
|
target_link_libraries(webp ${WEBP_DEP_LIBRARIES})
|
||||||
|
target_include_directories(
|
||||||
|
webp PRIVATE ${CMAKE_CURRENT_SOURCE_DIR} ${CMAKE_CURRENT_BINARY_DIR}
|
||||||
|
PUBLIC $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/src>
|
||||||
|
$<INSTALL_INTERFACE:include>)
|
||||||
|
set_target_properties(
|
||||||
|
webp
|
||||||
|
PROPERTIES PUBLIC_HEADER "${CMAKE_CURRENT_SOURCE_DIR}/src/webp/decode.h;\
|
||||||
|
${CMAKE_CURRENT_SOURCE_DIR}/src/webp/encode.h;\
|
||||||
|
${CMAKE_CURRENT_SOURCE_DIR}/src/webp/types.h")
|
||||||
|
|
||||||
|
# Make sure the OBJECT libraries are built with position independent code (it is
|
||||||
|
# not ON by default).
|
||||||
|
set_target_properties(webpdecode webpdspdecode webputilsdecode webpencode
|
||||||
|
webpdsp webputils PROPERTIES POSITION_INDEPENDENT_CODE ON)
|
||||||
|
configure_pkg_config("src/libwebp.pc")
|
||||||
|
|
||||||
|
# Build the webp demux library.
|
||||||
|
add_library(webpdemux ${WEBP_DEMUX_SRCS})
|
||||||
|
target_link_libraries(webpdemux webp)
|
||||||
|
target_include_directories(
|
||||||
|
webpdemux PRIVATE ${CMAKE_CURRENT_SOURCE_DIR} ${CMAKE_CURRENT_BINARY_DIR}
|
||||||
|
PUBLIC $<INSTALL_INTERFACE:include>)
|
||||||
|
set_target_properties(
|
||||||
|
webpdemux
|
||||||
|
PROPERTIES
|
||||||
|
PUBLIC_HEADER
|
||||||
|
"${CMAKE_CURRENT_SOURCE_DIR}/src/webp/decode.h;\
|
||||||
|
${CMAKE_CURRENT_SOURCE_DIR}/src/webp/demux.h;\
|
||||||
|
${CMAKE_CURRENT_SOURCE_DIR}/src/webp/mux_types.h;\
|
||||||
|
${CMAKE_CURRENT_SOURCE_DIR}/src/webp/types.h")
|
||||||
|
|
||||||
|
configure_pkg_config("src/demux/libwebpdemux.pc")
|
||||||
|
|
||||||
|
set_version(src/Makefile.am webp webp)
|
||||||
|
set_version(src/Makefile.am webpdecoder webpdecoder)
|
||||||
|
set_version(src/demux/Makefile.am webpdemux webpdemux)
|
||||||
|
file(READ ${CMAKE_CURRENT_SOURCE_DIR}/configure.ac CONFIGURE_FILE)
|
||||||
|
string(REGEX MATCH "AC_INIT\\([^\n]*\\[[0-9\\.]+\\]" TMP ${CONFIGURE_FILE})
|
||||||
|
string(REGEX MATCH "[0-9\\.]+" PROJECT_VERSION ${TMP})
|
||||||
|
|
||||||
|
# Define the libraries to install.
|
||||||
|
list(APPEND INSTALLED_LIBRARIES webpdecoder webp webpdemux)
|
||||||
|
|
||||||
|
# Deal with SIMD. Change the compile flags for SIMD files we use.
|
||||||
|
list(LENGTH WEBP_SIMD_FILES_TO_INCLUDE WEBP_SIMD_FILES_TO_INCLUDE_LENGTH)
|
||||||
|
math(EXPR WEBP_SIMD_FILES_TO_INCLUDE_RANGE
|
||||||
|
"${WEBP_SIMD_FILES_TO_INCLUDE_LENGTH}-1")
|
||||||
|
|
||||||
|
foreach(I_FILE RANGE ${WEBP_SIMD_FILES_TO_INCLUDE_RANGE})
|
||||||
|
list(GET WEBP_SIMD_FILES_TO_INCLUDE ${I_FILE} FILE)
|
||||||
|
list(GET WEBP_SIMD_FLAGS_TO_INCLUDE ${I_FILE} SIMD_COMPILE_FLAG)
|
||||||
|
set_source_files_properties(${FILE} PROPERTIES COMPILE_FLAGS
|
||||||
|
${SIMD_COMPILE_FLAG})
|
||||||
|
endforeach()
|
||||||
|
|
||||||
|
if(NOT WEBP_BUILD_LIBWEBPMUX)
|
||||||
|
set(WEBP_BUILD_GIF2WEBP OFF)
|
||||||
|
set(WEBP_BUILD_IMG2WEBP OFF)
|
||||||
|
set(WEBP_BUILD_WEBPMUX OFF)
|
||||||
|
endif()
|
||||||
|
|
||||||
|
if(WEBP_BUILD_GIF2WEBP AND NOT GIF_FOUND)
|
||||||
|
set(WEBP_BUILD_GIF2WEBP OFF)
|
||||||
|
endif()
|
||||||
|
|
||||||
|
if(WEBP_BUILD_ANIM_UTILS AND NOT GIF_FOUND)
|
||||||
|
set(WEBP_BUILD_ANIM_UTILS OFF)
|
||||||
|
endif()
|
||||||
|
|
||||||
|
# Build the executables if asked for.
|
||||||
|
if(WEBP_BUILD_ANIM_UTILS
|
||||||
|
OR WEBP_BUILD_CWEBP
|
||||||
|
OR WEBP_BUILD_DWEBP
|
||||||
|
OR WEBP_BUILD_GIF2WEBP
|
||||||
|
OR WEBP_BUILD_IMG2WEBP
|
||||||
|
OR WEBP_BUILD_VWEBP
|
||||||
|
OR WEBP_BUILD_WEBPMUX
|
||||||
|
OR WEBP_BUILD_WEBPINFO)
|
||||||
|
# Example utility library.
|
||||||
|
parse_makefile_am(${CMAKE_CURRENT_SOURCE_DIR}/examples "EXAMPLEUTIL_SRCS"
|
||||||
|
"example_util_[^ ]*")
|
||||||
|
list(APPEND EXAMPLEUTIL_SRCS ${CMAKE_CURRENT_SOURCE_DIR}/examples/stopwatch.h)
|
||||||
|
add_library(exampleutil STATIC ${EXAMPLEUTIL_SRCS})
|
||||||
|
target_include_directories(
|
||||||
|
exampleutil PUBLIC $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/src>)
|
||||||
|
|
||||||
|
parse_makefile_am(${CMAKE_CURRENT_SOURCE_DIR}/imageio "IMAGEIOUTILS_SRCS"
|
||||||
|
"imageio_util_[^ ]*")
|
||||||
|
add_library(imageioutil STATIC ${IMAGEIOUTILS_SRCS})
|
||||||
|
target_link_libraries(imageioutil webp)
|
||||||
|
target_link_libraries(exampleutil imageioutil)
|
||||||
|
|
||||||
|
# Image-decoding utility library.
|
||||||
|
parse_makefile_am(${CMAKE_CURRENT_SOURCE_DIR}/imageio "IMAGEDEC_SRCS"
|
||||||
|
"imagedec_[^ ]*")
|
||||||
|
add_library(imagedec STATIC ${IMAGEDEC_SRCS})
|
||||||
|
target_link_libraries(imagedec imageioutil webpdemux webp
|
||||||
|
${WEBP_DEP_IMG_LIBRARIES})
|
||||||
|
|
||||||
|
# Image-encoding utility library.
|
||||||
|
parse_makefile_am(${CMAKE_CURRENT_SOURCE_DIR}/imageio "IMAGEENC_SRCS"
|
||||||
|
"imageenc_[^ ]*")
|
||||||
|
add_library(imageenc STATIC ${IMAGEENC_SRCS})
|
||||||
|
target_link_libraries(imageenc imageioutil webp)
|
||||||
|
|
||||||
|
set_property(
|
||||||
|
TARGET exampleutil imageioutil imagedec imageenc
|
||||||
|
PROPERTY INCLUDE_DIRECTORIES ${CMAKE_CURRENT_SOURCE_DIR}/src
|
||||||
|
${CMAKE_CURRENT_BINARY_DIR}/src)
|
||||||
|
endif()
|
||||||
|
|
||||||
|
if(WEBP_BUILD_DWEBP)
|
||||||
|
# dwebp
|
||||||
|
parse_makefile_am(${CMAKE_CURRENT_SOURCE_DIR}/examples "DWEBP_SRCS" "dwebp")
|
||||||
|
add_executable(dwebp ${DWEBP_SRCS})
|
||||||
|
target_link_libraries(dwebp exampleutil imagedec imageenc)
|
||||||
|
target_include_directories(dwebp PRIVATE ${CMAKE_CURRENT_BINARY_DIR}/src)
|
||||||
|
install(TARGETS dwebp RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR})
|
||||||
|
endif()
|
||||||
|
|
||||||
|
if(WEBP_BUILD_CWEBP)
|
||||||
|
# cwebp
|
||||||
|
parse_makefile_am(${CMAKE_CURRENT_SOURCE_DIR}/examples "CWEBP_SRCS" "cwebp")
|
||||||
|
add_executable(cwebp ${CWEBP_SRCS})
|
||||||
|
target_link_libraries(cwebp exampleutil imagedec webp)
|
||||||
|
target_include_directories(cwebp PRIVATE ${CMAKE_CURRENT_BINARY_DIR}/src
|
||||||
|
${CMAKE_CURRENT_SOURCE_DIR})
|
||||||
|
install(TARGETS cwebp RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR})
|
||||||
|
endif()
|
||||||
|
|
||||||
|
if(WEBP_BUILD_LIBWEBPMUX)
|
||||||
|
parse_makefile_am(${CMAKE_CURRENT_SOURCE_DIR}/src/mux "WEBP_MUX_SRCS" "")
|
||||||
|
add_library(libwebpmux ${WEBP_MUX_SRCS})
|
||||||
|
target_link_libraries(libwebpmux webp)
|
||||||
|
target_include_directories(libwebpmux PRIVATE ${CMAKE_CURRENT_BINARY_DIR}
|
||||||
|
${CMAKE_CURRENT_SOURCE_DIR})
|
||||||
|
set_version(src/mux/Makefile.am libwebpmux webpmux)
|
||||||
|
set_target_properties(
|
||||||
|
libwebpmux
|
||||||
|
PROPERTIES PUBLIC_HEADER "${CMAKE_CURRENT_SOURCE_DIR}/src/webp/mux.h;\
|
||||||
|
${CMAKE_CURRENT_SOURCE_DIR}/src/webp/mux_types.h;\
|
||||||
|
${CMAKE_CURRENT_SOURCE_DIR}/src/webp/types.h;")
|
||||||
|
set_target_properties(libwebpmux PROPERTIES OUTPUT_NAME webpmux)
|
||||||
|
list(APPEND INSTALLED_LIBRARIES libwebpmux)
|
||||||
|
configure_pkg_config("src/mux/libwebpmux.pc")
|
||||||
|
endif()
|
||||||
|
|
||||||
|
if(WEBP_BUILD_GIF2WEBP)
|
||||||
|
# gif2webp
|
||||||
|
include_directories(${WEBP_DEP_GIF_INCLUDE_DIRS})
|
||||||
|
parse_makefile_am(${CMAKE_CURRENT_SOURCE_DIR}/examples "GIF2WEBP_SRCS"
|
||||||
|
"gif2webp")
|
||||||
|
add_executable(gif2webp ${GIF2WEBP_SRCS})
|
||||||
|
target_link_libraries(gif2webp exampleutil imageioutil webp libwebpmux
|
||||||
|
${WEBP_DEP_GIF_LIBRARIES})
|
||||||
|
target_include_directories(gif2webp PRIVATE ${CMAKE_CURRENT_BINARY_DIR}/src)
|
||||||
|
install(TARGETS gif2webp RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR})
|
||||||
|
endif()
|
||||||
|
|
||||||
|
if(WEBP_BUILD_IMG2WEBP)
|
||||||
|
# img2webp
|
||||||
|
include_directories(${WEBP_DEP_IMG_INCLUDE_DIRS})
|
||||||
|
parse_makefile_am(${CMAKE_CURRENT_SOURCE_DIR}/examples "IMG2WEBP_SRCS"
|
||||||
|
"img2webp")
|
||||||
|
add_executable(img2webp ${IMG2WEBP_SRCS})
|
||||||
|
target_link_libraries(img2webp exampleutil imagedec imageioutil webp
|
||||||
|
libwebpmux)
|
||||||
|
target_include_directories(img2webp PRIVATE ${CMAKE_CURRENT_BINARY_DIR}/src
|
||||||
|
${CMAKE_CURRENT_SOURCE_DIR})
|
||||||
|
install(TARGETS img2webp RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR})
|
||||||
|
endif()
|
||||||
|
|
||||||
|
if(WEBP_BUILD_VWEBP)
|
||||||
|
# vwebp
|
||||||
|
find_package(GLUT)
|
||||||
|
if(GLUT_FOUND)
|
||||||
|
include_directories(${WEBP_DEP_IMG_INCLUDE_DIRS})
|
||||||
|
parse_makefile_am(${CMAKE_CURRENT_SOURCE_DIR}/examples "VWEBP_SRCS" "vwebp")
|
||||||
|
add_executable(vwebp ${VWEBP_SRCS})
|
||||||
|
target_link_libraries(
|
||||||
|
vwebp
|
||||||
|
${OPENGL_LIBRARIES}
|
||||||
|
exampleutil
|
||||||
|
GLUT::GLUT
|
||||||
|
imageioutil
|
||||||
|
webp
|
||||||
|
webpdemux)
|
||||||
|
target_include_directories(
|
||||||
|
vwebp PRIVATE ${GLUT_INCLUDE_DIR} ${CMAKE_CURRENT_BINARY_DIR}/src
|
||||||
|
${OPENGL_INCLUDE_DIR})
|
||||||
|
install(TARGETS vwebp RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR})
|
||||||
|
if(${CMAKE_SYSTEM_NAME} STREQUAL "Darwin")
|
||||||
|
check_c_compiler_flag("-Wno-deprecated-declarations" HAS_NO_DEPRECATED)
|
||||||
|
if(HAS_NO_DEPRECATED)
|
||||||
|
target_compile_options(vwebp PRIVATE "-Wno-deprecated-declarations")
|
||||||
|
endif()
|
||||||
|
endif()
|
||||||
|
endif()
|
||||||
|
endif()
|
||||||
|
|
||||||
|
if(WEBP_BUILD_WEBPINFO)
|
||||||
|
# webpinfo
|
||||||
|
include_directories(${WEBP_DEP_IMG_INCLUDE_DIRS})
|
||||||
|
parse_makefile_am(${CMAKE_CURRENT_SOURCE_DIR}/examples "WEBPINFO_SRCS"
|
||||||
|
"webpinfo")
|
||||||
|
add_executable(webpinfo ${WEBPINFO_SRCS})
|
||||||
|
target_link_libraries(webpinfo exampleutil imageioutil)
|
||||||
|
target_include_directories(webpinfo PRIVATE ${CMAKE_CURRENT_BINARY_DIR}/src
|
||||||
|
${CMAKE_CURRENT_SOURCE_DIR}/src)
|
||||||
|
install(TARGETS webpinfo RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR})
|
||||||
|
endif()
|
||||||
|
|
||||||
|
if(WEBP_BUILD_WEBPMUX)
|
||||||
|
# webpmux
|
||||||
|
parse_makefile_am(${CMAKE_CURRENT_SOURCE_DIR}/examples "WEBPMUX_SRCS"
|
||||||
|
"webpmux")
|
||||||
|
add_executable(webpmux ${WEBPMUX_SRCS})
|
||||||
|
target_link_libraries(webpmux exampleutil imageioutil libwebpmux webp)
|
||||||
|
target_include_directories(webpmux PRIVATE ${CMAKE_CURRENT_BINARY_DIR}/src)
|
||||||
|
install(TARGETS webpmux RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR})
|
||||||
|
endif()
|
||||||
|
|
||||||
|
if(WEBP_BUILD_EXTRAS)
|
||||||
|
set(EXTRAS_MAKEFILE "${CMAKE_CURRENT_SOURCE_DIR}/extras")
|
||||||
|
parse_makefile_am(${EXTRAS_MAKEFILE} "WEBP_EXTRAS_SRCS" "libwebpextras_la")
|
||||||
|
parse_makefile_am(${EXTRAS_MAKEFILE} "GET_DISTO_SRCS" "get_disto")
|
||||||
|
parse_makefile_am(${EXTRAS_MAKEFILE} "WEBP_QUALITY_SRCS" "webp_quality")
|
||||||
|
parse_makefile_am(${EXTRAS_MAKEFILE} "VWEBP_SDL_SRCS" "vwebp_sdl")
|
||||||
|
|
||||||
|
# libextras
|
||||||
|
add_library(extras STATIC ${WEBP_EXTRAS_SRCS})
|
||||||
|
target_include_directories(
|
||||||
|
extras PRIVATE ${CMAKE_CURRENT_BINARY_DIR} ${CMAKE_CURRENT_SOURCE_DIR}
|
||||||
|
${CMAKE_CURRENT_SOURCE_DIR}/src)
|
||||||
|
|
||||||
|
# get_disto
|
||||||
|
add_executable(get_disto ${GET_DISTO_SRCS})
|
||||||
|
target_link_libraries(get_disto imagedec)
|
||||||
|
target_include_directories(get_disto PRIVATE ${CMAKE_CURRENT_SOURCE_DIR}
|
||||||
|
${CMAKE_CURRENT_BINARY_DIR}/src)
|
||||||
|
|
||||||
|
# webp_quality
|
||||||
|
add_executable(webp_quality ${WEBP_QUALITY_SRCS})
|
||||||
|
target_link_libraries(webp_quality exampleutil imagedec extras)
|
||||||
|
target_include_directories(webp_quality PRIVATE ${CMAKE_CURRENT_SOURCE_DIR}
|
||||||
|
${CMAKE_CURRENT_BINARY_DIR})
|
||||||
|
|
||||||
|
# vwebp_sdl
|
||||||
|
find_package(SDL)
|
||||||
|
if(WEBP_BUILD_VWEBP AND SDL_FOUND)
|
||||||
|
add_executable(vwebp_sdl ${VWEBP_SDL_SRCS})
|
||||||
|
target_link_libraries(vwebp_sdl ${SDL_LIBRARY} imageioutil webp)
|
||||||
|
target_include_directories(
|
||||||
|
vwebp_sdl PRIVATE ${CMAKE_CURRENT_SOURCE_DIR} ${CMAKE_CURRENT_BINARY_DIR}
|
||||||
|
${CMAKE_CURRENT_BINARY_DIR}/src ${SDL_INCLUDE_DIR})
|
||||||
|
set(WEBP_HAVE_SDL 1)
|
||||||
|
target_compile_definitions(vwebp_sdl PUBLIC WEBP_HAVE_SDL)
|
||||||
|
endif()
|
||||||
|
endif()
|
||||||
|
|
||||||
|
if(WEBP_BUILD_WEBP_JS)
|
||||||
|
# The default stack size changed from 5MB to 64KB in 3.1.27. See
|
||||||
|
# https://crbug.com/webp/614.
|
||||||
|
if(EMSCRIPTEN_VERSION VERSION_GREATER_EQUAL "3.1.27")
|
||||||
|
# TOTAL_STACK size was renamed to STACK_SIZE in 3.1.27. The old name was
|
||||||
|
# kept for compatibility, but prefer the new one in case it is removed in
|
||||||
|
# the future.
|
||||||
|
set(emscripten_stack_size "-sSTACK_SIZE=5MB")
|
||||||
|
else()
|
||||||
|
set(emscripten_stack_size "-sTOTAL_STACK=5MB")
|
||||||
|
endif()
|
||||||
|
# wasm2js does not support SIMD.
|
||||||
|
if(NOT WEBP_ENABLE_SIMD)
|
||||||
|
# JavaScript version
|
||||||
|
add_executable(webp_js ${CMAKE_CURRENT_SOURCE_DIR}/extras/webp_to_sdl.c)
|
||||||
|
target_link_libraries(webp_js webpdecoder SDL)
|
||||||
|
target_include_directories(webp_js PRIVATE ${CMAKE_CURRENT_BINARY_DIR})
|
||||||
|
set(WEBP_HAVE_SDL 1)
|
||||||
|
set_target_properties(
|
||||||
|
webp_js
|
||||||
|
PROPERTIES LINK_FLAGS "-sWASM=0 ${emscripten_stack_size} \
|
||||||
|
-sEXPORTED_FUNCTIONS=_WebPToSDL -sINVOKE_RUN=0 \
|
||||||
|
-sEXPORTED_RUNTIME_METHODS=cwrap")
|
||||||
|
set_target_properties(webp_js PROPERTIES OUTPUT_NAME webp)
|
||||||
|
target_compile_definitions(webp_js PUBLIC EMSCRIPTEN WEBP_HAVE_SDL)
|
||||||
|
endif()
|
||||||
|
|
||||||
|
# WASM version
|
||||||
|
add_executable(webp_wasm ${CMAKE_CURRENT_SOURCE_DIR}/extras/webp_to_sdl.c)
|
||||||
|
target_link_libraries(webp_wasm webpdecoder SDL)
|
||||||
|
target_include_directories(webp_wasm PRIVATE ${CMAKE_CURRENT_BINARY_DIR})
|
||||||
|
set_target_properties(
|
||||||
|
webp_wasm
|
||||||
|
PROPERTIES LINK_FLAGS "-sWASM=1 ${emscripten_stack_size} \
|
||||||
|
-sEXPORTED_FUNCTIONS=_WebPToSDL -sINVOKE_RUN=0 \
|
||||||
|
-sEXPORTED_RUNTIME_METHODS=cwrap")
|
||||||
|
target_compile_definitions(webp_wasm PUBLIC EMSCRIPTEN WEBP_HAVE_SDL)
|
||||||
|
|
||||||
|
target_compile_definitions(webpdspdecode PUBLIC EMSCRIPTEN)
|
||||||
|
endif()
|
||||||
|
|
||||||
|
if(WEBP_BUILD_ANIM_UTILS)
|
||||||
|
# anim_diff
|
||||||
|
include_directories(${WEBP_DEP_IMG_INCLUDE_DIRS} ${WEBP_DEP_GIF_INCLUDE_DIRS})
|
||||||
|
parse_makefile_am(${CMAKE_CURRENT_SOURCE_DIR}/examples "ANIM_DIFF_SRCS"
|
||||||
|
"anim_diff")
|
||||||
|
add_executable(anim_diff ${ANIM_DIFF_SRCS})
|
||||||
|
target_link_libraries(
|
||||||
|
anim_diff
|
||||||
|
exampleutil
|
||||||
|
imagedec
|
||||||
|
imageenc
|
||||||
|
imageioutil
|
||||||
|
webp
|
||||||
|
webpdemux
|
||||||
|
${WEBP_DEP_GIF_LIBRARIES})
|
||||||
|
target_include_directories(anim_diff PRIVATE ${CMAKE_CURRENT_BINARY_DIR}/src)
|
||||||
|
|
||||||
|
# anim_dump
|
||||||
|
include_directories(${WEBP_DEP_IMG_INCLUDE_DIRS} ${WEBP_DEP_GIF_INCLUDE_DIRS})
|
||||||
|
parse_makefile_am(${CMAKE_CURRENT_SOURCE_DIR}/examples "ANIM_DUMP_SRCS"
|
||||||
|
"anim_dump")
|
||||||
|
add_executable(anim_dump ${ANIM_DUMP_SRCS})
|
||||||
|
target_link_libraries(
|
||||||
|
anim_dump
|
||||||
|
exampleutil
|
||||||
|
imagedec
|
||||||
|
imageenc
|
||||||
|
imageioutil
|
||||||
|
webp
|
||||||
|
webpdemux
|
||||||
|
${WEBP_DEP_GIF_LIBRARIES})
|
||||||
|
target_include_directories(anim_dump PRIVATE ${CMAKE_CURRENT_BINARY_DIR}/src)
|
||||||
|
endif()
|
||||||
|
|
||||||
|
# Install the different headers and libraries.
|
||||||
|
install(
|
||||||
|
TARGETS ${INSTALLED_LIBRARIES}
|
||||||
|
EXPORT ${PROJECT_NAME}Targets
|
||||||
|
PUBLIC_HEADER DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}/webp
|
||||||
|
INCLUDES
|
||||||
|
DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}
|
||||||
|
ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR}
|
||||||
|
LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
|
||||||
|
RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR})
|
||||||
|
set(ConfigPackageLocation ${CMAKE_INSTALL_DATADIR}/${PROJECT_NAME}/cmake/)
|
||||||
|
install(EXPORT ${PROJECT_NAME}Targets NAMESPACE ${PROJECT_NAME}::
|
||||||
|
DESTINATION ${ConfigPackageLocation})
|
||||||
|
|
||||||
|
# Create the CMake version file.
|
||||||
|
include(CMakePackageConfigHelpers)
|
||||||
|
write_basic_package_version_file(
|
||||||
|
"${CMAKE_CURRENT_BINARY_DIR}/WebPConfigVersion.cmake"
|
||||||
|
VERSION ${PACKAGE_VERSION} COMPATIBILITY AnyNewerVersion)
|
||||||
|
|
||||||
|
# Create the Config file.
|
||||||
|
include(CMakePackageConfigHelpers)
|
||||||
|
# Fix libwebpmux reference. The target name libwebpmux is used for compatibility
|
||||||
|
# purposes, but the library mentioned in WebPConfig.cmake should be the
|
||||||
|
# unprefixed version. Note string(...) can be replaced with list(TRANSFORM ...)
|
||||||
|
# if cmake_minimum_required is >= 3.12.
|
||||||
|
string(REGEX REPLACE "libwebpmux" "webpmux" INSTALLED_LIBRARIES
|
||||||
|
"${INSTALLED_LIBRARIES}")
|
||||||
|
|
||||||
|
if(MSVC)
|
||||||
|
# For compatibility with nmake, MSVC builds use a custom prefix (lib) that
|
||||||
|
# needs to be included in the library name.
|
||||||
|
string(REGEX REPLACE "[A-Za-z0-9_]+" "${CMAKE_STATIC_LIBRARY_PREFIX}\\0"
|
||||||
|
INSTALLED_LIBRARIES "${INSTALLED_LIBRARIES}")
|
||||||
|
endif()
|
||||||
|
|
||||||
|
configure_package_config_file(
|
||||||
|
${CMAKE_CURRENT_SOURCE_DIR}/cmake/WebPConfig.cmake.in
|
||||||
|
${CMAKE_CURRENT_BINARY_DIR}/WebPConfig.cmake
|
||||||
|
INSTALL_DESTINATION ${ConfigPackageLocation}
|
||||||
|
PATH_VARS CMAKE_INSTALL_INCLUDEDIR)
|
||||||
|
|
||||||
|
# Install the generated CMake files.
|
||||||
|
install(FILES "${CMAKE_CURRENT_BINARY_DIR}/WebPConfigVersion.cmake"
|
||||||
|
"${CMAKE_CURRENT_BINARY_DIR}/WebPConfig.cmake"
|
||||||
|
DESTINATION ${ConfigPackageLocation})
|
||||||
|
|
||||||
|
# Install the man pages.
|
||||||
|
set(MAN_PAGES
|
||||||
|
cwebp.1
|
||||||
|
dwebp.1
|
||||||
|
gif2webp.1
|
||||||
|
img2webp.1
|
||||||
|
vwebp.1
|
||||||
|
webpmux.1
|
||||||
|
webpinfo.1)
|
||||||
|
set(EXEC_BUILDS
|
||||||
|
"CWEBP"
|
||||||
|
"DWEBP"
|
||||||
|
"GIF2WEBP"
|
||||||
|
"IMG2WEBP"
|
||||||
|
"VWEBP"
|
||||||
|
"WEBPMUX"
|
||||||
|
"WEBPINFO")
|
||||||
|
list(LENGTH MAN_PAGES MAN_PAGES_LENGTH)
|
||||||
|
math(EXPR MAN_PAGES_RANGE "${MAN_PAGES_LENGTH} - 1")
|
||||||
|
|
||||||
|
foreach(I_MAN RANGE ${MAN_PAGES_RANGE})
|
||||||
|
list(GET EXEC_BUILDS ${I_MAN} EXEC_BUILD)
|
||||||
|
if(WEBP_BUILD_${EXEC_BUILD})
|
||||||
|
list(GET MAN_PAGES ${I_MAN} MAN_PAGE)
|
||||||
|
install(FILES ${CMAKE_CURRENT_SOURCE_DIR}/man/${MAN_PAGE}
|
||||||
|
DESTINATION ${CMAKE_INSTALL_MANDIR}/man1 COMPONENT doc)
|
||||||
|
endif()
|
||||||
|
endforeach()
|
78
CONTRIBUTING.md
Normal file
78
CONTRIBUTING.md
Normal file
@ -0,0 +1,78 @@
|
|||||||
|
# How to Contribute
|
||||||
|
|
||||||
|
We'd love to accept your patches and contributions to this project. There are
|
||||||
|
just a few small guidelines you need to follow.
|
||||||
|
|
||||||
|
## Contributor License Agreement
|
||||||
|
|
||||||
|
Contributions to this project must be accompanied by a Contributor License
|
||||||
|
Agreement. You (or your employer) retain the copyright to your contribution;
|
||||||
|
this simply gives us permission to use and redistribute your contributions as
|
||||||
|
part of the project. Head over to <https://cla.developers.google.com/> to see
|
||||||
|
your current agreements on file or to sign a new one.
|
||||||
|
|
||||||
|
You generally only need to submit a CLA once, so if you've already submitted one
|
||||||
|
(even if it was for a different project), you probably don't need to do it
|
||||||
|
again.
|
||||||
|
|
||||||
|
## Code reviews
|
||||||
|
|
||||||
|
All submissions, including submissions by project members, require review. We
|
||||||
|
use a [Gerrit](https://www.gerritcodereview.com) instance hosted at
|
||||||
|
https://chromium-review.googlesource.com for this purpose.
|
||||||
|
|
||||||
|
## Sending patches
|
||||||
|
|
||||||
|
The basic git workflow for modifying libwebp code and sending for review is:
|
||||||
|
|
||||||
|
1. Get the latest version of the repository locally:
|
||||||
|
|
||||||
|
```sh
|
||||||
|
git clone https://chromium.googlesource.com/webm/libwebp && cd libwebp
|
||||||
|
```
|
||||||
|
|
||||||
|
2. Copy the commit-msg script into ./git/hooks (this will add an ID to all of
|
||||||
|
your commits):
|
||||||
|
|
||||||
|
```sh
|
||||||
|
curl -Lo .git/hooks/commit-msg https://chromium-review.googlesource.com/tools/hooks/commit-msg && chmod u+x .git/hooks/commit-msg
|
||||||
|
```
|
||||||
|
|
||||||
|
3. Modify the local copy of libwebp. Make sure the code
|
||||||
|
[builds successfully](https://chromium.googlesource.com/webm/libwebp/+/HEAD/doc/building.md#cmake).
|
||||||
|
|
||||||
|
4. Choose a short and representative commit message:
|
||||||
|
|
||||||
|
```sh
|
||||||
|
git commit -a -m "Set commit message here"
|
||||||
|
```
|
||||||
|
|
||||||
|
5. Send the patch for review:
|
||||||
|
|
||||||
|
```sh
|
||||||
|
git push https://chromium-review.googlesource.com/webm/libwebp HEAD:refs/for/main
|
||||||
|
```
|
||||||
|
|
||||||
|
Go to https://chromium-review.googlesource.com to view your patch and
|
||||||
|
request a review from the maintainers.
|
||||||
|
|
||||||
|
See the
|
||||||
|
[WebM Project page](https://www.webmproject.org/code/contribute/submitting-patches/)
|
||||||
|
for additional details.
|
||||||
|
|
||||||
|
## Code Style
|
||||||
|
|
||||||
|
The C code style is based on the
|
||||||
|
[Google C++ Style Guide](https://google.github.io/styleguide/cppguide.html) and
|
||||||
|
`clang-format --style=Google`, though this project doesn't use the tool to
|
||||||
|
enforce the formatting.
|
||||||
|
|
||||||
|
CMake files are formatted with
|
||||||
|
[cmake-format](https://cmake-format.readthedocs.io/en/latest/). `cmake-format
|
||||||
|
-i` can be used to format individual files, it will use the settings from
|
||||||
|
`.cmake-format.py`.
|
||||||
|
|
||||||
|
## Community Guidelines
|
||||||
|
|
||||||
|
This project follows
|
||||||
|
[Google's Open Source Community Guidelines](https://opensource.google.com/conduct/).
|
30
COPYING
Normal file
30
COPYING
Normal file
@ -0,0 +1,30 @@
|
|||||||
|
Copyright (c) 2010, Google Inc. All rights reserved.
|
||||||
|
|
||||||
|
Redistribution and use in source and binary forms, with or without
|
||||||
|
modification, are permitted provided that the following conditions are
|
||||||
|
met:
|
||||||
|
|
||||||
|
* Redistributions of source code must retain the above copyright
|
||||||
|
notice, this list of conditions and the following disclaimer.
|
||||||
|
|
||||||
|
* Redistributions in binary form must reproduce the above copyright
|
||||||
|
notice, this list of conditions and the following disclaimer in
|
||||||
|
the documentation and/or other materials provided with the
|
||||||
|
distribution.
|
||||||
|
|
||||||
|
* Neither the name of Google nor the names of its contributors may
|
||||||
|
be used to endorse or promote products derived from this software
|
||||||
|
without specific prior written permission.
|
||||||
|
|
||||||
|
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
||||||
|
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
||||||
|
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
|
||||||
|
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
|
||||||
|
HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
||||||
|
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
|
||||||
|
LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
||||||
|
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
||||||
|
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
||||||
|
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
||||||
|
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||||||
|
|
9
Makefile.am
Normal file
9
Makefile.am
Normal file
@ -0,0 +1,9 @@
|
|||||||
|
ACLOCAL_AMFLAGS = -I m4
|
||||||
|
SUBDIRS = sharpyuv src imageio man
|
||||||
|
EXTRA_DIST = COPYING autogen.sh
|
||||||
|
|
||||||
|
if BUILD_EXTRAS
|
||||||
|
SUBDIRS += extras
|
||||||
|
endif
|
||||||
|
|
||||||
|
SUBDIRS += examples
|
528
Makefile.vc
Normal file
528
Makefile.vc
Normal file
@ -0,0 +1,528 @@
|
|||||||
|
#
|
||||||
|
# Stem for static libs and DLLs
|
||||||
|
#
|
||||||
|
LIBWEBPDECODER_BASENAME = libwebpdecoder
|
||||||
|
LIBWEBP_BASENAME = libwebp
|
||||||
|
LIBWEBPMUX_BASENAME = libwebpmux
|
||||||
|
LIBWEBPDEMUX_BASENAME = libwebpdemux
|
||||||
|
LIBSHARPYUV_BASENAME = libsharpyuv
|
||||||
|
|
||||||
|
!IFNDEF ARCH
|
||||||
|
!IF ! [ cl 2>&1 | find "x86" > NUL ]
|
||||||
|
ARCH = x86
|
||||||
|
!ELSE IF ! [ cl 2>&1 | find "x64" > NUL ]
|
||||||
|
ARCH = x64
|
||||||
|
!ELSE IF ! [ cl 2>&1 | find "ARM" > NUL ]
|
||||||
|
ARCH = ARM
|
||||||
|
!ELSE
|
||||||
|
!ERROR Unable to auto-detect toolchain architecture! \
|
||||||
|
If cl.exe is in your PATH rerun nmake with ARCH=<arch>.
|
||||||
|
!ENDIF
|
||||||
|
!ENDIF
|
||||||
|
|
||||||
|
!IF "$(ARCH)" == "x86"
|
||||||
|
PLATFORM_LDFLAGS = /SAFESEH
|
||||||
|
!ENDIF
|
||||||
|
|
||||||
|
#############################################################
|
||||||
|
## Nothing more to do below this line!
|
||||||
|
|
||||||
|
NOLOGO = /nologo
|
||||||
|
CCNODBG = cl.exe $(NOLOGO) /O2 /DNDEBUG
|
||||||
|
CCDEBUG = cl.exe $(NOLOGO) /Od /Zi /D_DEBUG /RTC1
|
||||||
|
CFLAGS = /I. /Isrc $(NOLOGO) /W3 /EHsc /c
|
||||||
|
CFLAGS = $(CFLAGS) /DWIN32 /D_CRT_SECURE_NO_WARNINGS /DWIN32_LEAN_AND_MEAN
|
||||||
|
LDFLAGS = /LARGEADDRESSAWARE /MANIFEST:EMBED /NXCOMPAT /DYNAMICBASE
|
||||||
|
LDFLAGS = $(LDFLAGS) $(PLATFORM_LDFLAGS)
|
||||||
|
LNKDLL = link.exe /DLL $(NOLOGO)
|
||||||
|
LNKEXE = link.exe $(NOLOGO)
|
||||||
|
LNKLIB = lib.exe $(NOLOGO)
|
||||||
|
RCNODBG = rc.exe $(NOLOGO) /l"0x0409" # 0x409 = U.S. English
|
||||||
|
RCDEBUG = $(RCNODBG) /D_DEBUG
|
||||||
|
|
||||||
|
!IF "$(ARCH)" == "ARM"
|
||||||
|
CFLAGS = $(CFLAGS) /DWINAPI_FAMILY=WINAPI_FAMILY_PHONE_APP /DWEBP_USE_THREAD
|
||||||
|
!ELSE
|
||||||
|
CFLAGS = $(CFLAGS) /DHAVE_WINCODEC_H /DWEBP_USE_THREAD
|
||||||
|
!ENDIF
|
||||||
|
|
||||||
|
CFGSET = FALSE
|
||||||
|
!IF "$(OBJDIR)" == ""
|
||||||
|
OUTDIR = ..\obj\
|
||||||
|
!ELSE
|
||||||
|
OUTDIR = $(OBJDIR)
|
||||||
|
!ENDIF
|
||||||
|
|
||||||
|
##############################################################
|
||||||
|
# Runtime library configuration
|
||||||
|
!IF "$(RTLIBCFG)" == "static"
|
||||||
|
RTLIB = /MT
|
||||||
|
RTLIBD = /MTd
|
||||||
|
!ELSE IF "$(RTLIBCFG)" == "legacy"
|
||||||
|
RTLIBCFG = static
|
||||||
|
RTLIB = /MT
|
||||||
|
RTLIBD = /MTd
|
||||||
|
CFLAGS = $(CFLAGS) /GS- /arch:IA32
|
||||||
|
!ELSE
|
||||||
|
RTLIB = /MD
|
||||||
|
RTLIBD = /MDd
|
||||||
|
!ENDIF
|
||||||
|
DIRBASE = $(OUTDIR)\$(CFG)\$(ARCH)
|
||||||
|
DIROBJ = $(DIRBASE)\obj
|
||||||
|
DIRLIB = $(DIRBASE)\lib
|
||||||
|
DIRINC = $(DIRBASE)\include
|
||||||
|
DIRBIN = $(DIRBASE)\bin
|
||||||
|
LIBWEBP_PDBNAME = $(DIROBJ)\$(LIBWEBP_BASENAME).pdb
|
||||||
|
OUTPUT_DIRS = $(DIRBIN) $(DIRINC) $(DIRLIB) \
|
||||||
|
$(DIROBJ)\dec \
|
||||||
|
$(DIROBJ)\demux \
|
||||||
|
$(DIROBJ)\dsp \
|
||||||
|
$(DIROBJ)\enc \
|
||||||
|
$(DIROBJ)\examples \
|
||||||
|
$(DIROBJ)\extras \
|
||||||
|
$(DIROBJ)\imageio \
|
||||||
|
$(DIROBJ)\mux \
|
||||||
|
$(DIROBJ)\sharpyuv \
|
||||||
|
$(DIROBJ)\utils \
|
||||||
|
|
||||||
|
# Target configuration
|
||||||
|
!IF "$(CFG)" == "release-static"
|
||||||
|
CC = $(CCNODBG)
|
||||||
|
STATICLIBBUILD = TRUE
|
||||||
|
!ELSE IF "$(CFG)" == "debug-static"
|
||||||
|
CC = $(CCDEBUG)
|
||||||
|
RTLIB = $(RTLIBD)
|
||||||
|
STATICLIBBUILD = TRUE
|
||||||
|
LIBWEBPDECODER_BASENAME = $(LIBWEBPDECODER_BASENAME)_debug
|
||||||
|
LIBWEBP_BASENAME = $(LIBWEBP_BASENAME)_debug
|
||||||
|
LIBWEBPMUX_BASENAME = $(LIBWEBPMUX_BASENAME)_debug
|
||||||
|
LIBWEBPDEMUX_BASENAME = $(LIBWEBPDEMUX_BASENAME)_debug
|
||||||
|
LIBSHARPYUV_BASENAME = $(LIBSHARPYUV_BASENAME)_debug
|
||||||
|
!ELSE IF "$(CFG)" == "release-dynamic"
|
||||||
|
CC = $(CCNODBG)
|
||||||
|
RC = $(RCNODBG)
|
||||||
|
DLLBUILD = TRUE
|
||||||
|
!ELSE IF "$(CFG)" == "debug-dynamic"
|
||||||
|
CC = $(CCDEBUG)
|
||||||
|
RC = $(RCDEBUG)
|
||||||
|
RTLIB = $(RTLIBD)
|
||||||
|
DLLBUILD = TRUE
|
||||||
|
LIBWEBPDECODER_BASENAME = $(LIBWEBPDECODER_BASENAME)_debug
|
||||||
|
LIBWEBP_BASENAME = $(LIBWEBP_BASENAME)_debug
|
||||||
|
LIBWEBPMUX_BASENAME = $(LIBWEBPMUX_BASENAME)_debug
|
||||||
|
LIBWEBPDEMUX_BASENAME = $(LIBWEBPDEMUX_BASENAME)_debug
|
||||||
|
LIBSHARPYUV_BASENAME = $(LIBSHARPYUV_BASENAME)_debug
|
||||||
|
!ENDIF
|
||||||
|
|
||||||
|
!IF "$(STATICLIBBUILD)" == "TRUE"
|
||||||
|
CC = $(CC) $(RTLIB)
|
||||||
|
CFGSET = TRUE
|
||||||
|
LIBWEBPDECODER = $(DIRLIB)\$(LIBWEBPDECODER_BASENAME).lib
|
||||||
|
LIBWEBP = $(DIRLIB)\$(LIBWEBP_BASENAME).lib
|
||||||
|
LIBWEBPMUX = $(DIRLIB)\$(LIBWEBPMUX_BASENAME).lib
|
||||||
|
LIBWEBPDEMUX = $(DIRLIB)\$(LIBWEBPDEMUX_BASENAME).lib
|
||||||
|
LIBSHARPYUV = $(DIRLIB)\$(LIBSHARPYUV_BASENAME).lib
|
||||||
|
!ELSE IF "$(DLLBUILD)" == "TRUE"
|
||||||
|
CC = $(CC) /I$(DIROBJ) $(RTLIB) /DWEBP_DLL
|
||||||
|
LIBWEBPDECODER = $(DIRLIB)\$(LIBWEBPDECODER_BASENAME)_dll.lib
|
||||||
|
LIBWEBP = $(DIRLIB)\$(LIBWEBP_BASENAME)_dll.lib
|
||||||
|
LIBWEBPMUX = $(DIRLIB)\$(LIBWEBPMUX_BASENAME)_dll.lib
|
||||||
|
LIBWEBPDEMUX = $(DIRLIB)\$(LIBWEBPDEMUX_BASENAME)_dll.lib
|
||||||
|
LIBSHARPYUV = $(DIRLIB)\$(LIBSHARPYUV_BASENAME)_dll.lib
|
||||||
|
LIBWEBP_PDBNAME = $(DIROBJ)\$(LIBWEBP_BASENAME)_dll.pdb
|
||||||
|
CFGSET = TRUE
|
||||||
|
!ENDIF
|
||||||
|
|
||||||
|
!IF "$(UNICODE)" == "1"
|
||||||
|
CFLAGS = $(CFLAGS) /D_UNICODE /DUNICODE
|
||||||
|
!ENDIF
|
||||||
|
|
||||||
|
#######################
|
||||||
|
# Usage
|
||||||
|
#
|
||||||
|
!IF "$(CFGSET)" == "FALSE"
|
||||||
|
!MESSAGE Usage: nmake /f Makefile.vc [CFG=<config>]
|
||||||
|
!MESSAGE . [OBJDIR=<path>] [RTLIBCFG=<rtlib>] [UNICODE=1] [<target>]
|
||||||
|
!MESSAGE
|
||||||
|
!MESSAGE where <config> is one of:
|
||||||
|
!MESSAGE - release-static - release static library
|
||||||
|
!MESSAGE - debug-static - debug static library
|
||||||
|
!MESSAGE - release-dynamic - release dynamic link library (DLL)
|
||||||
|
!MESSAGE - debug-dynamic - debug dynamic link library (DLL)
|
||||||
|
!MESSAGE
|
||||||
|
!MESSAGE <target> may be:
|
||||||
|
!MESSAGE - clean - perform a clean for CFG
|
||||||
|
!MESSAGE - experimental - build CFG with experimental
|
||||||
|
!MESSAGE . features enabled.
|
||||||
|
!MESSAGE - (empty) - build libwebp-based targets for CFG
|
||||||
|
!MESSAGE - all - build (de)mux-based targets for CFG
|
||||||
|
!MESSAGE - gif2webp - requires libgif & >= VS2013
|
||||||
|
!MESSAGE - anim_diff - requires libgif & >= VS2013
|
||||||
|
!MESSAGE - anim_dump
|
||||||
|
!MESSAGE
|
||||||
|
!MESSAGE RTLIBCFG controls the runtime library linkage - 'static' or 'dynamic'.
|
||||||
|
!MESSAGE 'legacy' will produce a Windows 2000 compatible library.
|
||||||
|
!MESSAGE OBJDIR is the path where you like to build (obj, bins, etc.),
|
||||||
|
!MESSAGE defaults to ..\obj
|
||||||
|
|
||||||
|
!IF "$(CFG)" != ""
|
||||||
|
!MESSAGE
|
||||||
|
!ERROR please choose a valid configuration instead of "$(CFG)"
|
||||||
|
!ENDIF
|
||||||
|
!ENDIF
|
||||||
|
|
||||||
|
#######################
|
||||||
|
# Rules
|
||||||
|
#
|
||||||
|
!IF "$(CFGSET)" == "TRUE"
|
||||||
|
# A config was provided, so the library can be built.
|
||||||
|
#
|
||||||
|
|
||||||
|
SHARPYUV_OBJS = \
|
||||||
|
$(DIROBJ)\sharpyuv\sharpyuv.obj \
|
||||||
|
$(DIROBJ)\sharpyuv\sharpyuv_cpu.obj \
|
||||||
|
$(DIROBJ)\sharpyuv\sharpyuv_csp.obj \
|
||||||
|
$(DIROBJ)\sharpyuv\sharpyuv_dsp.obj \
|
||||||
|
$(DIROBJ)\sharpyuv\sharpyuv_gamma.obj \
|
||||||
|
$(DIROBJ)\sharpyuv\sharpyuv_neon.obj \
|
||||||
|
$(DIROBJ)\sharpyuv\sharpyuv_sse2.obj \
|
||||||
|
|
||||||
|
DEC_OBJS = \
|
||||||
|
$(DIROBJ)\dec\alpha_dec.obj \
|
||||||
|
$(DIROBJ)\dec\buffer_dec.obj \
|
||||||
|
$(DIROBJ)\dec\frame_dec.obj \
|
||||||
|
$(DIROBJ)\dec\idec_dec.obj \
|
||||||
|
$(DIROBJ)\dec\io_dec.obj \
|
||||||
|
$(DIROBJ)\dec\quant_dec.obj \
|
||||||
|
$(DIROBJ)\dec\tree_dec.obj \
|
||||||
|
$(DIROBJ)\dec\vp8_dec.obj \
|
||||||
|
$(DIROBJ)\dec\vp8l_dec.obj \
|
||||||
|
$(DIROBJ)\dec\webp_dec.obj \
|
||||||
|
|
||||||
|
DEMUX_OBJS = \
|
||||||
|
$(DIROBJ)\demux\anim_decode.obj \
|
||||||
|
$(DIROBJ)\demux\demux.obj \
|
||||||
|
|
||||||
|
DSP_DEC_OBJS = \
|
||||||
|
$(DIROBJ)\dsp\alpha_processing.obj \
|
||||||
|
$(DIROBJ)\dsp\alpha_processing_mips_dsp_r2.obj \
|
||||||
|
$(DIROBJ)\dsp\alpha_processing_neon.obj \
|
||||||
|
$(DIROBJ)\dsp\alpha_processing_sse2.obj \
|
||||||
|
$(DIROBJ)\dsp\alpha_processing_sse41.obj \
|
||||||
|
$(DIROBJ)\dsp\cpu.obj \
|
||||||
|
$(DIROBJ)\dsp\dec.obj \
|
||||||
|
$(DIROBJ)\dsp\dec_clip_tables.obj \
|
||||||
|
$(DIROBJ)\dsp\dec_mips32.obj \
|
||||||
|
$(DIROBJ)\dsp\dec_mips_dsp_r2.obj \
|
||||||
|
$(DIROBJ)\dsp\dec_msa.obj \
|
||||||
|
$(DIROBJ)\dsp\dec_neon.obj \
|
||||||
|
$(DIROBJ)\dsp\dec_sse2.obj \
|
||||||
|
$(DIROBJ)\dsp\dec_sse41.obj \
|
||||||
|
$(DIROBJ)\dsp\filters.obj \
|
||||||
|
$(DIROBJ)\dsp\filters_mips_dsp_r2.obj \
|
||||||
|
$(DIROBJ)\dsp\filters_msa.obj \
|
||||||
|
$(DIROBJ)\dsp\filters_neon.obj \
|
||||||
|
$(DIROBJ)\dsp\filters_sse2.obj \
|
||||||
|
$(DIROBJ)\dsp\lossless.obj \
|
||||||
|
$(DIROBJ)\dsp\lossless_mips_dsp_r2.obj \
|
||||||
|
$(DIROBJ)\dsp\lossless_msa.obj \
|
||||||
|
$(DIROBJ)\dsp\lossless_neon.obj \
|
||||||
|
$(DIROBJ)\dsp\lossless_sse2.obj \
|
||||||
|
$(DIROBJ)\dsp\lossless_sse41.obj \
|
||||||
|
$(DIROBJ)\dsp\rescaler.obj \
|
||||||
|
$(DIROBJ)\dsp\rescaler_mips32.obj \
|
||||||
|
$(DIROBJ)\dsp\rescaler_mips_dsp_r2.obj \
|
||||||
|
$(DIROBJ)\dsp\rescaler_msa.obj \
|
||||||
|
$(DIROBJ)\dsp\rescaler_neon.obj \
|
||||||
|
$(DIROBJ)\dsp\rescaler_sse2.obj \
|
||||||
|
$(DIROBJ)\dsp\upsampling.obj \
|
||||||
|
$(DIROBJ)\dsp\upsampling_mips_dsp_r2.obj \
|
||||||
|
$(DIROBJ)\dsp\upsampling_msa.obj \
|
||||||
|
$(DIROBJ)\dsp\upsampling_neon.obj \
|
||||||
|
$(DIROBJ)\dsp\upsampling_sse2.obj \
|
||||||
|
$(DIROBJ)\dsp\upsampling_sse41.obj \
|
||||||
|
$(DIROBJ)\dsp\yuv.obj \
|
||||||
|
$(DIROBJ)\dsp\yuv_mips32.obj \
|
||||||
|
$(DIROBJ)\dsp\yuv_mips_dsp_r2.obj \
|
||||||
|
$(DIROBJ)\dsp\yuv_neon.obj \
|
||||||
|
$(DIROBJ)\dsp\yuv_sse2.obj \
|
||||||
|
$(DIROBJ)\dsp\yuv_sse41.obj \
|
||||||
|
|
||||||
|
DSP_ENC_OBJS = \
|
||||||
|
$(DIROBJ)\dsp\cost.obj \
|
||||||
|
$(DIROBJ)\dsp\cost_mips32.obj \
|
||||||
|
$(DIROBJ)\dsp\cost_mips_dsp_r2.obj \
|
||||||
|
$(DIROBJ)\dsp\cost_neon.obj \
|
||||||
|
$(DIROBJ)\dsp\cost_sse2.obj \
|
||||||
|
$(DIROBJ)\dsp\enc.obj \
|
||||||
|
$(DIROBJ)\dsp\enc_mips32.obj \
|
||||||
|
$(DIROBJ)\dsp\enc_mips_dsp_r2.obj \
|
||||||
|
$(DIROBJ)\dsp\enc_msa.obj \
|
||||||
|
$(DIROBJ)\dsp\enc_neon.obj \
|
||||||
|
$(DIROBJ)\dsp\enc_sse2.obj \
|
||||||
|
$(DIROBJ)\dsp\enc_sse41.obj \
|
||||||
|
$(DIROBJ)\dsp\lossless_enc.obj \
|
||||||
|
$(DIROBJ)\dsp\lossless_enc_mips32.obj \
|
||||||
|
$(DIROBJ)\dsp\lossless_enc_mips_dsp_r2.obj \
|
||||||
|
$(DIROBJ)\dsp\lossless_enc_msa.obj \
|
||||||
|
$(DIROBJ)\dsp\lossless_enc_neon.obj \
|
||||||
|
$(DIROBJ)\dsp\lossless_enc_sse2.obj \
|
||||||
|
$(DIROBJ)\dsp\lossless_enc_sse41.obj \
|
||||||
|
$(DIROBJ)\dsp\ssim.obj \
|
||||||
|
$(DIROBJ)\dsp\ssim_sse2.obj \
|
||||||
|
|
||||||
|
EX_ANIM_UTIL_OBJS = \
|
||||||
|
$(DIROBJ)\examples\anim_util.obj \
|
||||||
|
|
||||||
|
IMAGEIO_DEC_OBJS = \
|
||||||
|
$(DIROBJ)\imageio\image_dec.obj \
|
||||||
|
$(DIROBJ)\imageio\jpegdec.obj \
|
||||||
|
$(DIROBJ)\imageio\metadata.obj \
|
||||||
|
$(DIROBJ)\imageio\pngdec.obj \
|
||||||
|
$(DIROBJ)\imageio\pnmdec.obj \
|
||||||
|
$(DIROBJ)\imageio\tiffdec.obj \
|
||||||
|
$(DIROBJ)\imageio\webpdec.obj \
|
||||||
|
$(DIROBJ)\imageio\wicdec.obj \
|
||||||
|
|
||||||
|
IMAGEIO_ENC_OBJS = \
|
||||||
|
$(DIROBJ)\imageio\image_enc.obj \
|
||||||
|
|
||||||
|
EX_GIF_DEC_OBJS = \
|
||||||
|
$(DIROBJ)\examples\gifdec.obj \
|
||||||
|
|
||||||
|
EX_UTIL_OBJS = \
|
||||||
|
$(DIROBJ)\examples\example_util.obj \
|
||||||
|
|
||||||
|
ENC_OBJS = \
|
||||||
|
$(DIROBJ)\enc\alpha_enc.obj \
|
||||||
|
$(DIROBJ)\enc\analysis_enc.obj \
|
||||||
|
$(DIROBJ)\enc\backward_references_cost_enc.obj \
|
||||||
|
$(DIROBJ)\enc\backward_references_enc.obj \
|
||||||
|
$(DIROBJ)\enc\config_enc.obj \
|
||||||
|
$(DIROBJ)\enc\cost_enc.obj \
|
||||||
|
$(DIROBJ)\enc\filter_enc.obj \
|
||||||
|
$(DIROBJ)\enc\frame_enc.obj \
|
||||||
|
$(DIROBJ)\enc\histogram_enc.obj \
|
||||||
|
$(DIROBJ)\enc\iterator_enc.obj \
|
||||||
|
$(DIROBJ)\enc\near_lossless_enc.obj \
|
||||||
|
$(DIROBJ)\enc\picture_enc.obj \
|
||||||
|
$(DIROBJ)\enc\picture_csp_enc.obj \
|
||||||
|
$(DIROBJ)\enc\picture_psnr_enc.obj \
|
||||||
|
$(DIROBJ)\enc\picture_rescale_enc.obj \
|
||||||
|
$(DIROBJ)\enc\picture_tools_enc.obj \
|
||||||
|
$(DIROBJ)\enc\predictor_enc.obj \
|
||||||
|
$(DIROBJ)\enc\quant_enc.obj \
|
||||||
|
$(DIROBJ)\enc\syntax_enc.obj \
|
||||||
|
$(DIROBJ)\enc\token_enc.obj \
|
||||||
|
$(DIROBJ)\enc\tree_enc.obj \
|
||||||
|
$(DIROBJ)\enc\vp8l_enc.obj \
|
||||||
|
$(DIROBJ)\enc\webp_enc.obj \
|
||||||
|
|
||||||
|
EXTRAS_OBJS = \
|
||||||
|
$(DIROBJ)\extras\extras.obj \
|
||||||
|
$(DIROBJ)\extras\quality_estimate.obj \
|
||||||
|
|
||||||
|
IMAGEIO_UTIL_OBJS = \
|
||||||
|
$(DIROBJ)\imageio\imageio_util.obj \
|
||||||
|
|
||||||
|
MUX_OBJS = \
|
||||||
|
$(DIROBJ)\mux\anim_encode.obj \
|
||||||
|
$(DIROBJ)\mux\muxedit.obj \
|
||||||
|
$(DIROBJ)\mux\muxinternal.obj \
|
||||||
|
$(DIROBJ)\mux\muxread.obj \
|
||||||
|
|
||||||
|
UTILS_DEC_OBJS = \
|
||||||
|
$(DIROBJ)\utils\bit_reader_utils.obj \
|
||||||
|
$(DIROBJ)\utils\color_cache_utils.obj \
|
||||||
|
$(DIROBJ)\utils\filters_utils.obj \
|
||||||
|
$(DIROBJ)\utils\huffman_utils.obj \
|
||||||
|
$(DIROBJ)\utils\palette.obj \
|
||||||
|
$(DIROBJ)\utils\quant_levels_dec_utils.obj \
|
||||||
|
$(DIROBJ)\utils\rescaler_utils.obj \
|
||||||
|
$(DIROBJ)\utils\random_utils.obj \
|
||||||
|
$(DIROBJ)\utils\thread_utils.obj \
|
||||||
|
$(DIROBJ)\utils\utils.obj \
|
||||||
|
|
||||||
|
UTILS_ENC_OBJS = \
|
||||||
|
$(DIROBJ)\utils\bit_writer_utils.obj \
|
||||||
|
$(DIROBJ)\utils\huffman_encode_utils.obj \
|
||||||
|
$(DIROBJ)\utils\quant_levels_utils.obj \
|
||||||
|
|
||||||
|
LIBWEBPDECODER_OBJS = $(DEC_OBJS) $(DSP_DEC_OBJS) $(UTILS_DEC_OBJS)
|
||||||
|
LIBWEBP_OBJS = $(LIBWEBPDECODER_OBJS) $(ENC_OBJS) \
|
||||||
|
$(DSP_ENC_OBJS) $(UTILS_ENC_OBJS) $(DLL_OBJS)
|
||||||
|
LIBWEBPMUX_OBJS = $(MUX_OBJS) $(LIBWEBPMUX_OBJS)
|
||||||
|
LIBWEBPDEMUX_OBJS = $(DEMUX_OBJS) $(LIBWEBPDEMUX_OBJS)
|
||||||
|
LIBSHARPYUV_OBJS = $(SHARPYUV_OBJS)
|
||||||
|
|
||||||
|
OUT_LIBS = $(LIBWEBPDECODER) $(LIBWEBP) $(LIBSHARPYUV)
|
||||||
|
!IF "$(ARCH)" == "ARM"
|
||||||
|
ex: $(OUT_LIBS)
|
||||||
|
all: ex
|
||||||
|
!ELSE
|
||||||
|
OUT_EXAMPLES = $(DIRBIN)\cwebp.exe $(DIRBIN)\dwebp.exe
|
||||||
|
EXTRA_EXAMPLES = $(DIRBIN)\vwebp.exe $(DIRBIN)\webpmux.exe \
|
||||||
|
$(DIRBIN)\img2webp.exe $(DIRBIN)\get_disto.exe \
|
||||||
|
$(DIRBIN)\webp_quality.exe $(DIRBIN)\vwebp_sdl.exe \
|
||||||
|
$(DIRBIN)\webpinfo.exe
|
||||||
|
|
||||||
|
ex: $(OUT_LIBS) $(OUT_EXAMPLES)
|
||||||
|
all: ex $(EXTRA_EXAMPLES)
|
||||||
|
# NB: gif2webp.exe and anim_diff.exe are excluded from 'all' as libgif requires
|
||||||
|
# C99 support which is only available from VS2013 onward.
|
||||||
|
gif2webp: $(DIRBIN)\gif2webp.exe
|
||||||
|
anim_diff: $(DIRBIN)\anim_diff.exe
|
||||||
|
anim_dump: $(DIRBIN)\anim_dump.exe
|
||||||
|
|
||||||
|
$(DIRBIN)\anim_diff.exe: $(DIROBJ)\examples\anim_diff.obj $(EX_ANIM_UTIL_OBJS)
|
||||||
|
$(DIRBIN)\anim_diff.exe: $(EX_UTIL_OBJS) $(IMAGEIO_UTIL_OBJS)
|
||||||
|
$(DIRBIN)\anim_diff.exe: $(EX_GIF_DEC_OBJS) $(LIBWEBPDEMUX) $(LIBWEBP)
|
||||||
|
$(DIRBIN)\anim_dump.exe: $(DIROBJ)\examples\anim_dump.obj $(EX_ANIM_UTIL_OBJS)
|
||||||
|
$(DIRBIN)\anim_dump.exe: $(EX_UTIL_OBJS) $(IMAGEIO_UTIL_OBJS)
|
||||||
|
$(DIRBIN)\anim_dump.exe: $(EX_GIF_DEC_OBJS) $(LIBWEBPDEMUX) $(LIBWEBP)
|
||||||
|
$(DIRBIN)\anim_dump.exe: $(IMAGEIO_ENC_OBJS)
|
||||||
|
$(DIRBIN)\cwebp.exe: $(DIROBJ)\examples\cwebp.obj $(IMAGEIO_DEC_OBJS)
|
||||||
|
$(DIRBIN)\cwebp.exe: $(IMAGEIO_UTIL_OBJS)
|
||||||
|
$(DIRBIN)\cwebp.exe: $(LIBWEBPDEMUX) $(LIBSHARPYUV)
|
||||||
|
$(DIRBIN)\dwebp.exe: $(DIROBJ)\examples\dwebp.obj $(IMAGEIO_DEC_OBJS)
|
||||||
|
$(DIRBIN)\dwebp.exe: $(IMAGEIO_ENC_OBJS)
|
||||||
|
$(DIRBIN)\dwebp.exe: $(IMAGEIO_UTIL_OBJS)
|
||||||
|
$(DIRBIN)\dwebp.exe: $(LIBWEBPDEMUX)
|
||||||
|
$(DIRBIN)\gif2webp.exe: $(DIROBJ)\examples\gif2webp.obj $(EX_GIF_DEC_OBJS)
|
||||||
|
$(DIRBIN)\gif2webp.exe: $(EX_UTIL_OBJS) $(IMAGEIO_UTIL_OBJS) $(LIBWEBPMUX)
|
||||||
|
$(DIRBIN)\gif2webp.exe: $(LIBWEBP)
|
||||||
|
$(DIRBIN)\vwebp.exe: $(DIROBJ)\examples\vwebp.obj $(EX_UTIL_OBJS)
|
||||||
|
$(DIRBIN)\vwebp.exe: $(IMAGEIO_UTIL_OBJS) $(LIBWEBPDEMUX) $(LIBWEBP)
|
||||||
|
$(DIRBIN)\vwebp_sdl.exe: $(DIROBJ)\extras\vwebp_sdl.obj
|
||||||
|
$(DIRBIN)\vwebp_sdl.exe: $(DIROBJ)\extras\webp_to_sdl.obj
|
||||||
|
$(DIRBIN)\vwebp_sdl.exe: $(IMAGEIO_UTIL_OBJS) $(LIBWEBP)
|
||||||
|
$(DIRBIN)\webpmux.exe: $(DIROBJ)\examples\webpmux.obj $(LIBWEBPMUX)
|
||||||
|
$(DIRBIN)\webpmux.exe: $(EX_UTIL_OBJS) $(IMAGEIO_UTIL_OBJS) $(LIBWEBP)
|
||||||
|
$(DIRBIN)\img2webp.exe: $(DIROBJ)\examples\img2webp.obj $(LIBWEBPMUX)
|
||||||
|
$(DIRBIN)\img2webp.exe: $(IMAGEIO_DEC_OBJS)
|
||||||
|
$(DIRBIN)\img2webp.exe: $(EX_UTIL_OBJS) $(IMAGEIO_UTIL_OBJS)
|
||||||
|
$(DIRBIN)\img2webp.exe: $(LIBWEBPDEMUX) $(LIBWEBP) $(LIBSHARPYUV)
|
||||||
|
$(DIRBIN)\get_disto.exe: $(DIROBJ)\extras\get_disto.obj
|
||||||
|
$(DIRBIN)\get_disto.exe: $(IMAGEIO_DEC_OBJS) $(IMAGEIO_UTIL_OBJS)
|
||||||
|
$(DIRBIN)\get_disto.exe: $(LIBWEBPDEMUX) $(LIBWEBP)
|
||||||
|
$(DIRBIN)\webp_quality.exe: $(DIROBJ)\extras\webp_quality.obj
|
||||||
|
$(DIRBIN)\webp_quality.exe: $(IMAGEIO_UTIL_OBJS)
|
||||||
|
$(DIRBIN)\webp_quality.exe: $(EXTRAS_OBJS)
|
||||||
|
# EXTRA_OBJS requires private symbols from dsp. Explicitly add those when
|
||||||
|
# building libwebp as a dll.
|
||||||
|
!IF "$(DLLBUILD)" == "TRUE"
|
||||||
|
$(DIRBIN)\webp_quality.exe: $(DSP_DEC_OBJS)
|
||||||
|
!ENDIF
|
||||||
|
$(DIRBIN)\webp_quality.exe: $(LIBWEBP)
|
||||||
|
$(DIRBIN)\webpinfo.exe: $(DIROBJ)\examples\webpinfo.obj
|
||||||
|
$(DIRBIN)\webpinfo.exe: $(IMAGEIO_DEC_OBJS)
|
||||||
|
$(DIRBIN)\webpinfo.exe: $(EX_UTIL_OBJS) $(IMAGEIO_UTIL_OBJS)
|
||||||
|
$(DIRBIN)\webpinfo.exe: $(LIBWEBPDEMUX) $(LIBWEBP)
|
||||||
|
|
||||||
|
$(OUT_EXAMPLES): $(EX_UTIL_OBJS) $(LIBWEBP)
|
||||||
|
$(EX_UTIL_OBJS) $(IMAGEIO_UTIL_OBJS): $(OUTPUT_DIRS)
|
||||||
|
$(IMAGEIO_DEC_OBJS) $(IMAGEIO_ENC_OBJS) $(EXTRAS_OBJS): $(OUTPUT_DIRS)
|
||||||
|
!ENDIF # ARCH == ARM
|
||||||
|
|
||||||
|
$(LIBSHARPYUV): $(LIBSHARPYUV_OBJS)
|
||||||
|
$(LIBWEBPDECODER): $(LIBWEBPDECODER_OBJS)
|
||||||
|
$(LIBWEBP): $(LIBWEBP_OBJS) $(LIBSHARPYUV)
|
||||||
|
$(LIBWEBPMUX): $(LIBWEBPMUX_OBJS)
|
||||||
|
$(LIBWEBPDEMUX): $(LIBWEBPDEMUX_OBJS)
|
||||||
|
|
||||||
|
$(LIBWEBP_OBJS) $(LIBWEBPMUX_OBJS) $(LIBWEBPDEMUX_OBJS) $(LIBSHARPYUV_OBJS): \
|
||||||
|
$(OUTPUT_DIRS)
|
||||||
|
|
||||||
|
!IF "$(DLLBUILD)" == "TRUE"
|
||||||
|
{$(DIROBJ)}.c{$(DIROBJ)}.obj:
|
||||||
|
$(CC) $(CFLAGS) /Fd$(LIBWEBP_PDBNAME) /Fo$@ $<
|
||||||
|
|
||||||
|
{src}.rc{$(DIROBJ)}.res:
|
||||||
|
$(RC) /fo$@ $<
|
||||||
|
{src\demux}.rc{$(DIROBJ)\demux}.res:
|
||||||
|
$(RC) /fo$@ $<
|
||||||
|
{src\mux}.rc{$(DIROBJ)\mux}.res:
|
||||||
|
$(RC) /fo$@ $<
|
||||||
|
{sharpyuv}.rc{$(DIROBJ)\sharpyuv}.res:
|
||||||
|
$(RC) /fo$@ $<
|
||||||
|
|
||||||
|
$(LIBSHARPYUV): $(DIROBJ)\sharpyuv\$(LIBSHARPYUV_BASENAME:_debug=).res
|
||||||
|
$(LIBWEBP): $(LIBSHARPYUV) $(DIROBJ)\$(LIBWEBP_BASENAME:_debug=).res
|
||||||
|
$(LIBWEBPDECODER): $(DIROBJ)\$(LIBWEBPDECODER_BASENAME:_debug=).res
|
||||||
|
$(LIBWEBPMUX): $(LIBWEBP) $(DIROBJ)\mux\$(LIBWEBPMUX_BASENAME:_debug=).res
|
||||||
|
$(LIBWEBPDEMUX): $(LIBWEBP) $(DIROBJ)\demux\$(LIBWEBPDEMUX_BASENAME:_debug=).res
|
||||||
|
|
||||||
|
$(LIBWEBPDECODER) $(LIBWEBP) $(LIBWEBPMUX) $(LIBWEBPDEMUX) $(LIBSHARPYUV):
|
||||||
|
$(LNKDLL) /out:$(DIRBIN)\$(@B:_dll=.dll) /implib:$@ $(LFLAGS) $**
|
||||||
|
-xcopy $(DIROBJ)\*.pdb $(DIRLIB) /y
|
||||||
|
!ELSE
|
||||||
|
$(LIBWEBPDECODER) $(LIBWEBP) $(LIBWEBPMUX) $(LIBWEBPDEMUX) $(LIBSHARPYUV):
|
||||||
|
$(LNKLIB) /out:$@ $**
|
||||||
|
-xcopy $(DIROBJ)\*.pdb $(DIRLIB) /y
|
||||||
|
!ENDIF
|
||||||
|
|
||||||
|
$(OUTPUT_DIRS):
|
||||||
|
@if not exist "$(@)" mkdir "$(@)"
|
||||||
|
|
||||||
|
.SUFFIXES: .c .obj .res .exe
|
||||||
|
# File-specific flag builds. Note batch rules take precedence over wildcards,
|
||||||
|
# so for now name each file individually.
|
||||||
|
$(DIROBJ)\examples\anim_diff.obj: examples\anim_diff.c
|
||||||
|
$(CC) $(CFLAGS) /DWEBP_HAVE_GIF /Fd$(LIBWEBP_PDBNAME) \
|
||||||
|
/Fo$(DIROBJ)\examples\ examples\$(@B).c
|
||||||
|
$(DIROBJ)\examples\anim_dump.obj: examples\anim_dump.c
|
||||||
|
$(CC) $(CFLAGS) /DWEBP_HAVE_GIF /Fd$(LIBWEBP_PDBNAME) \
|
||||||
|
/Fo$(DIROBJ)\examples\ examples\$(@B).c
|
||||||
|
$(DIROBJ)\examples\anim_util.obj: examples\anim_util.c
|
||||||
|
$(CC) $(CFLAGS) /DWEBP_HAVE_GIF /Fd$(LIBWEBP_PDBNAME) \
|
||||||
|
/Fo$(DIROBJ)\examples\ examples\$(@B).c
|
||||||
|
$(DIROBJ)\examples\gif2webp.obj: examples\gif2webp.c
|
||||||
|
$(CC) $(CFLAGS) /DWEBP_HAVE_GIF /Fd$(LIBWEBP_PDBNAME) \
|
||||||
|
/Fo$(DIROBJ)\examples\ examples\$(@B).c
|
||||||
|
$(DIROBJ)\examples\gifdec.obj: examples\gifdec.c
|
||||||
|
$(CC) $(CFLAGS) /DWEBP_HAVE_GIF /Fd$(LIBWEBP_PDBNAME) \
|
||||||
|
/Fo$(DIROBJ)\examples\ examples\$(@B).c
|
||||||
|
# Batch rules
|
||||||
|
{examples}.c{$(DIROBJ)\examples}.obj::
|
||||||
|
$(CC) $(CFLAGS) /Fd$(DIROBJ)\examples\ /Fo$(DIROBJ)\examples\ $<
|
||||||
|
{extras}.c{$(DIROBJ)\extras}.obj::
|
||||||
|
$(CC) $(CFLAGS) /Fd$(DIROBJ)\extras\ /Fo$(DIROBJ)\extras\ $<
|
||||||
|
{imageio}.c{$(DIROBJ)\imageio}.obj::
|
||||||
|
$(CC) $(CFLAGS) /Fd$(DIROBJ)\imageio\ /Fo$(DIROBJ)\imageio\ $<
|
||||||
|
{sharpyuv}.c{$(DIROBJ)\sharpyuv}.obj::
|
||||||
|
$(CC) $(CFLAGS) /Fd$(DIROBJ)\sharpyuv\ /Fo$(DIROBJ)\sharpyuv\ $<
|
||||||
|
{src\dec}.c{$(DIROBJ)\dec}.obj::
|
||||||
|
$(CC) $(CFLAGS) /Fd$(LIBWEBP_PDBNAME) /Fo$(DIROBJ)\dec\ $<
|
||||||
|
{src\demux}.c{$(DIROBJ)\demux}.obj::
|
||||||
|
$(CC) $(CFLAGS) /Fd$(LIBWEBP_PDBNAME) /Fo$(DIROBJ)\demux\ $<
|
||||||
|
{src\dsp}.c{$(DIROBJ)\dsp}.obj::
|
||||||
|
$(CC) $(CFLAGS) /Fd$(LIBWEBP_PDBNAME) /Fo$(DIROBJ)\dsp\ $<
|
||||||
|
{src\enc}.c{$(DIROBJ)\enc}.obj::
|
||||||
|
$(CC) $(CFLAGS) /Fd$(LIBWEBP_PDBNAME) /Fo$(DIROBJ)\enc\ $<
|
||||||
|
{src\mux}.c{$(DIROBJ)\mux}.obj::
|
||||||
|
$(CC) $(CFLAGS) /Fd$(LIBWEBP_PDBNAME) /Fo$(DIROBJ)\mux\ $<
|
||||||
|
{src\utils}.c{$(DIROBJ)\utils}.obj::
|
||||||
|
$(CC) $(CFLAGS) /Fd$(LIBWEBP_PDBNAME) /Fo$(DIROBJ)\utils\ $<
|
||||||
|
|
||||||
|
LNKLIBS = ole32.lib windowscodecs.lib shlwapi.lib
|
||||||
|
!IF "$(UNICODE)" == "1"
|
||||||
|
LNKLIBS = $(LNKLIBS) Shell32.lib
|
||||||
|
!ENDIF
|
||||||
|
|
||||||
|
{$(DIROBJ)\examples}.obj{$(DIRBIN)}.exe:
|
||||||
|
$(LNKEXE) $(LDFLAGS) /OUT:$@ $** $(LNKLIBS)
|
||||||
|
|
||||||
|
{$(DIROBJ)\extras}.obj{$(DIRBIN)}.exe:
|
||||||
|
$(LNKEXE) $(LDFLAGS) /OUT:$@ $** $(LNKLIBS)
|
||||||
|
|
||||||
|
clean::
|
||||||
|
@-erase /s $(DIROBJ)\*.dll 2> NUL
|
||||||
|
@-erase /s $(DIROBJ)\*.exp 2> NUL
|
||||||
|
@-erase /s $(DIROBJ)\*.idb 2> NUL
|
||||||
|
@-erase /s $(DIROBJ)\*.lib 2> NUL
|
||||||
|
@-erase /s $(DIROBJ)\*.obj 2> NUL
|
||||||
|
@-erase /s $(DIROBJ)\*.pch 2> NUL
|
||||||
|
@-erase /s $(DIROBJ)\*.pdb 2> NUL
|
||||||
|
@-erase /s $(DIROBJ)\*.res 2> NUL
|
||||||
|
|
||||||
|
!ENDIF # End of case where a config was provided.
|
311
NEWS
Normal file
311
NEWS
Normal file
@ -0,0 +1,311 @@
|
|||||||
|
- 6/23/2023: version 1.3.1
|
||||||
|
This is a binary compatible release.
|
||||||
|
* security fixes for lossless encoder (#603, chromium: #1420107, #1455619,
|
||||||
|
CVE-2023-1999)
|
||||||
|
* improve error reporting through WebPPicture error codes
|
||||||
|
* fix upsampling for RGB565 and RGBA4444 in NEON builds
|
||||||
|
* img2webp: add -sharp_yuv & -near_lossless
|
||||||
|
* Windows builds:
|
||||||
|
- fix compatibility with clang-cl (#607)
|
||||||
|
- improve Arm64 performance with cl.exe
|
||||||
|
- add Arm64EC support
|
||||||
|
* fix webp_js with emcc >= 3.1.27 (stack size change, #614)
|
||||||
|
* CMake fixes (#592, #610, #612)
|
||||||
|
* further updates to the container and lossless bitstream docs (#581, #611)
|
||||||
|
|
||||||
|
- 12/16/2022: version 1.3.0
|
||||||
|
This is a binary compatible release.
|
||||||
|
* add libsharpyuv, which exposes -sharp_yuv/config.use_sharp_yuv
|
||||||
|
functionality to other libraries; libwebp now depends on this library
|
||||||
|
* major updates to the container and lossless bitstream docs (#448, #546,
|
||||||
|
#551)
|
||||||
|
* miscellaneous warning, bug & build fixes (#576, #583, #584)
|
||||||
|
|
||||||
|
- 8/4/2022: version 1.2.4
|
||||||
|
This is a binary compatible release.
|
||||||
|
* restore CMake libwebpmux target name for compatibility with 1.2.2 (#575)
|
||||||
|
* fix lossless crunch mode encoding with WEBP_REDUCE_SIZE
|
||||||
|
(chromium: #1345547, #1345595, #1345772, #1345804)
|
||||||
|
|
||||||
|
- 6/30/2022: version 1.2.3
|
||||||
|
This is a binary compatible release.
|
||||||
|
* security fix for lossless encoder (#565, chromium:1313709)
|
||||||
|
* improved progress granularity in WebPReportProgress() when using lossless
|
||||||
|
* improved precision in Sharp YUV (-sharp_yuv) conversion
|
||||||
|
* many corrections to webp-lossless-bitstream-spec.txt (#551)
|
||||||
|
* crash/leak fixes on error/OOM and other bug fixes (#558, #563, #569, #573)
|
||||||
|
|
||||||
|
- 1/11/2022: version 1.2.2
|
||||||
|
This is a binary compatible release.
|
||||||
|
* webpmux: add "-set bgcolor A,R,G,B"
|
||||||
|
* add ARM64 NEON support for MSVC builds (#539)
|
||||||
|
* fix duplicate include error in Xcode when using multiple XCFrameworks in a
|
||||||
|
project (#542)
|
||||||
|
* doc updates and bug fixes (#538, #544, #548, #550)
|
||||||
|
|
||||||
|
- 7/20/2021: version 1.2.1
|
||||||
|
This is a binary compatible release.
|
||||||
|
* minor lossless encoder improvements and x86 color conversion speed up
|
||||||
|
* add ARM64 simulator support to xcframeworkbuild.sh (#510)
|
||||||
|
* further security related hardening in libwebp & examples
|
||||||
|
(issues: #497, #508, #518)
|
||||||
|
(chromium: #1196480, #1196773, #1196775, #1196777, #1196778, #1196850)
|
||||||
|
(oss-fuzz: #28658, #28978)
|
||||||
|
* toolchain updates and bug fixes (#498, #501, #502, #504, #505, #506, #509,
|
||||||
|
#533)
|
||||||
|
* use more inclusive language within the source (#507)
|
||||||
|
|
||||||
|
- 12/23/2020: version 1.2.0
|
||||||
|
* API changes:
|
||||||
|
- libwebp:
|
||||||
|
encode.h: add a qmin / qmax range for quality factor (cwebp adds -qrange)
|
||||||
|
* lossless encoder improvements
|
||||||
|
* SIMD support for Wasm builds
|
||||||
|
* add xcframeworkbuild.sh, supports Mac Catalyst builds
|
||||||
|
* import fuzzers from oss-fuzz & chromium (#409)
|
||||||
|
* webpmux: add an '-set loop <value>' option (#494)
|
||||||
|
* toolchain updates and bug fixes (#449, #463, #470, #475, #477, #478, #479,
|
||||||
|
#488, #491)
|
||||||
|
|
||||||
|
- 12/18/2019: version 1.1.0
|
||||||
|
* API changes:
|
||||||
|
- libwebp:
|
||||||
|
WebPMalloc (issue #442)
|
||||||
|
- extras:
|
||||||
|
WebPUnmultiplyARGB
|
||||||
|
* alpha decode fix (issue #439)
|
||||||
|
* toolchain updates and bug fixes
|
||||||
|
(chromium: #1026858, #1027136, #1027409, #1028620, #1028716, #995200)
|
||||||
|
(oss-fuzz: #19430, #19447)
|
||||||
|
|
||||||
|
- 7/4/2019: version 1.0.3
|
||||||
|
This is a binary compatible release.
|
||||||
|
* resize fixes for Nx1 sizes and the addition of non-opaque alpha values for
|
||||||
|
odd sizes (issues #418, #434)
|
||||||
|
* lossless encode/decode performance improvements
|
||||||
|
* lossy compression performance improvement at low quality levels with flat
|
||||||
|
content (issue #432)
|
||||||
|
* python swig files updated to support python 3
|
||||||
|
Tool updates:
|
||||||
|
vwebp will now preserve the aspect ratio of images that exceed monitor
|
||||||
|
resolution by scaling the image to fit (issue #433)
|
||||||
|
|
||||||
|
- 1/14/2019: version 1.0.2
|
||||||
|
This is a binary compatible release.
|
||||||
|
* (Windows) unicode file support in the tools (linux and mac already had
|
||||||
|
support, issue #398)
|
||||||
|
* lossless encoder speedups
|
||||||
|
* lossy encoder speedup on ARM
|
||||||
|
* lossless multi-threaded security fix (chromium:917029)
|
||||||
|
|
||||||
|
- 11/2/2018: version 1.0.1
|
||||||
|
This is a binary compatible release.
|
||||||
|
* lossless encoder speedups
|
||||||
|
* big-endian fix for alpha decoding (issue #393)
|
||||||
|
* gif2webp fix for loop count=65535 transcode (issue #382)
|
||||||
|
* further security related hardening in libwebp & libwebpmux
|
||||||
|
(issues #383, #385, #386, #387, #388, #391)
|
||||||
|
(oss-fuzz #9099, #9100, #9105, #9106, #9111, #9112, #9119, #9123, #9170,
|
||||||
|
#9178, #9179, #9183, #9186, #9191, #9364, #9417, #9496, #10349,
|
||||||
|
#10423, #10634, #10700, #10838, #10922, #11021, #11088, #11152)
|
||||||
|
* miscellaneous bug & build fixes (issues #381, #394, #396, #397, #400)
|
||||||
|
|
||||||
|
- 4/2/2018: version 1.0.0
|
||||||
|
This is a binary compatible release.
|
||||||
|
* lossy encoder improvements to avoid chroma shifts in various circumstances
|
||||||
|
(issues #308, #340)
|
||||||
|
* big-endian fixes for decode, RGBA import and WebPPictureDistortion
|
||||||
|
Tool updates:
|
||||||
|
gifwebp, anim_diff - default duration behavior (<= 10ms) changed to match
|
||||||
|
web browsers, transcoding tools (issue #379)
|
||||||
|
img2webp, webpmux - allow options to be passed in via a file (issue #355)
|
||||||
|
|
||||||
|
- 11/24/2017: version 0.6.1
|
||||||
|
This is a binary compatible release.
|
||||||
|
* lossless performance and compression improvements + a new 'cruncher' mode
|
||||||
|
(-m 6 -q 100)
|
||||||
|
* ARM performance improvements with clang (15-20% w/ndk r15c, issue #339)
|
||||||
|
* webp-js: emscripten/webassembly based javascript decoder
|
||||||
|
* miscellaneous bug & build fixes (issue #329, #332, #343, #353, #360, #361,
|
||||||
|
#363)
|
||||||
|
Tool updates / additions:
|
||||||
|
added webpinfo - prints file format information (issue #330)
|
||||||
|
gif2webp - loop behavior modified to match Chrome M63+ (crbug.com/649264);
|
||||||
|
'-loop_compatibility' can be used for the old behavior
|
||||||
|
|
||||||
|
- 1/26/2017: version 0.6.0
|
||||||
|
* lossless performance and compression improvements
|
||||||
|
* miscellaneous performance improvements (SSE2, NEON, MSA)
|
||||||
|
* webpmux gained a -duration option allowing for frame timing modification
|
||||||
|
* new img2webp utility allowing a sequence of images to be converted to
|
||||||
|
animated webp
|
||||||
|
* API changes:
|
||||||
|
- libwebp:
|
||||||
|
WebPPictureSharpARGBToYUVA
|
||||||
|
WebPPlaneDistortion
|
||||||
|
- libwebpmux / gif2webp:
|
||||||
|
WebPAnimEncoderOptions: kmax <= 0 now disables keyframes, kmax == 1
|
||||||
|
forces all keyframes. See mux.h and the gif2webp
|
||||||
|
manpage for details.
|
||||||
|
|
||||||
|
- 12/13/2016: version 0.5.2
|
||||||
|
This is a binary compatible release.
|
||||||
|
This release covers CVE-2016-8888 and CVE-2016-9085.
|
||||||
|
* further security related hardening in the tools; fixes to
|
||||||
|
gif2webp/AnimEncoder (issues #310, #314, #316, #322), cwebp/libwebp (issue
|
||||||
|
#312)
|
||||||
|
* full libwebp (encoder & decoder) iOS framework; libwebpdecoder
|
||||||
|
WebP.framework renamed to WebPDecoder.framework (issue #307)
|
||||||
|
* CMake support for Android Studio (2.2)
|
||||||
|
* miscellaneous build related fixes (issue #306, #313)
|
||||||
|
* miscellaneous documentation improvements (issue #225)
|
||||||
|
* minor lossy encoder fixes and improvements
|
||||||
|
|
||||||
|
- 6/14/2016: version 0.5.1
|
||||||
|
This is a binary compatible release.
|
||||||
|
* miscellaneous bug fixes (issues #280, #289)
|
||||||
|
* reverted alpha plane encoding with color cache for compatibility with
|
||||||
|
libwebp 0.4.0->0.4.3 (issues #291, #298)
|
||||||
|
* lossless encoding performance improvements
|
||||||
|
* memory reduction in both lossless encoding and decoding
|
||||||
|
* force mux output to be in the extended format (VP8X) when undefined chunks
|
||||||
|
are present (issue #294)
|
||||||
|
* gradle, cmake build support
|
||||||
|
* workaround for compiler bug causing 64-bit decode failures on android
|
||||||
|
devices using clang-3.8 in the r11c NDK
|
||||||
|
* various WebPAnimEncoder improvements
|
||||||
|
|
||||||
|
- 12/17/2015: version 0.5.0
|
||||||
|
* miscellaneous bug & build fixes (issues #234, #258, #274, #275, #278)
|
||||||
|
* encoder & decoder speed-ups on x86/ARM/MIPS for lossy & lossless
|
||||||
|
- note! YUV->RGB conversion was sped-up, but the results will be slightly
|
||||||
|
different from previous releases
|
||||||
|
* various lossless encoder improvements
|
||||||
|
* gif2webp improvements, -min_size option added
|
||||||
|
* tools fully support input from stdin and output to stdout (issue #168)
|
||||||
|
* New WebPAnimEncoder API for creating animations
|
||||||
|
* New WebPAnimDecoder API for decoding animations
|
||||||
|
* other API changes:
|
||||||
|
- libwebp:
|
||||||
|
WebPPictureSmartARGBToYUVA() (-pre 4 in cwebp)
|
||||||
|
WebPConfig::exact (-exact in cwebp; -alpha_cleanup is now the default)
|
||||||
|
WebPConfig::near_lossless (-near_lossless in cwebp)
|
||||||
|
WebPFree() (free'ing webp allocated memory in other languages)
|
||||||
|
WebPConfigLosslessPreset()
|
||||||
|
WebPMemoryWriterClear()
|
||||||
|
- libwebpdemux: removed experimental fragment related fields and functions
|
||||||
|
- libwebpmux: WebPMuxSetCanvasSize()
|
||||||
|
* new libwebpextras library with some uncommon import functions:
|
||||||
|
WebPImportGray/WebPImportRGB565/WebPImportRGB4444
|
||||||
|
|
||||||
|
- 10/15/15: version 0.4.4
|
||||||
|
This is a binary compatible release.
|
||||||
|
* rescaling out-of-bounds read fix (issue #254)
|
||||||
|
* various build fixes and improvements (issues #253, #259, #262, #267, #268)
|
||||||
|
* container documentation update
|
||||||
|
* gif2webp transparency fix (issue #245)
|
||||||
|
|
||||||
|
- 3/3/15: version 0.4.3
|
||||||
|
This is a binary compatible release.
|
||||||
|
* Android / gcc / iOS / MSVS build fixes and improvements
|
||||||
|
* lossless decode fix (issue #239 -- since 0.4.0)
|
||||||
|
* documentation / vwebp updates for animation
|
||||||
|
* multi-threading fix (issue #234)
|
||||||
|
|
||||||
|
- 10/13/14: version 0.4.2
|
||||||
|
This is a binary compatible release.
|
||||||
|
* Android / gcc build fixes
|
||||||
|
* (Windows) fix reading from stdin and writing to stdout
|
||||||
|
* gif2webp: miscellaneous fixes
|
||||||
|
* fix 'alpha-leak' with lossy compression (issue #220)
|
||||||
|
* the lossless bitstream spec has been amended to reflect the current code
|
||||||
|
|
||||||
|
- 7/24/14: version 0.4.1
|
||||||
|
This is a binary compatible release.
|
||||||
|
* AArch64 (arm64) & MIPS support/optimizations
|
||||||
|
* NEON assembly additions:
|
||||||
|
- ~25% faster lossy decode / encode (-m 4)
|
||||||
|
- ~10% faster lossless decode
|
||||||
|
- ~5-10% faster lossless encode (-m 3/4)
|
||||||
|
* dwebp/vwebp can read from stdin
|
||||||
|
* cwebp/gif2webp can write to stdout
|
||||||
|
* cwebp can read webp files; useful if storing sources as webp lossless
|
||||||
|
|
||||||
|
- 12/19/13: version 0.4.0
|
||||||
|
* improved gif2webp tool
|
||||||
|
* numerous fixes, compression improvement and speed-up
|
||||||
|
* dither option added to decoder (dwebp -dither 50 ...)
|
||||||
|
* improved multi-threaded modes (-mt option)
|
||||||
|
* improved filtering strength determination
|
||||||
|
* New function: WebPMuxGetCanvasSize
|
||||||
|
* BMP and TIFF format output added to 'dwebp'
|
||||||
|
* Significant memory reduction for decoding lossy images with alpha.
|
||||||
|
* Intertwined decoding of RGB and alpha for a shorter
|
||||||
|
time-to-first-decoded-pixel.
|
||||||
|
* WebPIterator has a new member 'has_alpha' denoting whether the frame
|
||||||
|
contains transparency.
|
||||||
|
* Container spec amended with new 'blending method' for animation.
|
||||||
|
|
||||||
|
- 6/13/13: version 0.3.1
|
||||||
|
This is a binary compatible release.
|
||||||
|
* Add incremental decoding support for images containing ALPH and ICCP chunks.
|
||||||
|
* Python bindings via swig for the simple encode/decode interfaces similar to
|
||||||
|
Java.
|
||||||
|
|
||||||
|
- 3/20/13: version 0.3.0
|
||||||
|
This is a binary compatible release.
|
||||||
|
* WebPINewRGB/WebPINewYUVA accept being passed a NULL output buffer
|
||||||
|
and will perform auto-allocation.
|
||||||
|
* default filter option is now '-strong -f 60'
|
||||||
|
* encoding speed-up for lossy methods 3 to 6
|
||||||
|
* alpha encoding can be done in parallel to lossy using 'cwebp -mt ...'
|
||||||
|
* color profile, metadata (XMP/EXIF) and animation support finalized in the
|
||||||
|
container.
|
||||||
|
* various NEON assembly additions
|
||||||
|
Tool updates / additions:
|
||||||
|
* gif2webp added
|
||||||
|
* vwebp given color profile & animation support
|
||||||
|
* cwebp can preserve color profile / metadata with '-metadata'
|
||||||
|
|
||||||
|
- 10/30/12: version 0.2.1
|
||||||
|
* Various security related fixes
|
||||||
|
* cwebp.exe: fix import errors on Windows XP
|
||||||
|
* enable DLL builds for mingw targets
|
||||||
|
|
||||||
|
- 8/3/12: version 0.2.0
|
||||||
|
* Add support for ARGB -> YUVA conversion for lossless decoder
|
||||||
|
New functions: WebPINewYUVA, WebPIDecGetYUVA
|
||||||
|
* Add stats for lossless and alpha encoding
|
||||||
|
* Security related hardening: allocation and size checks
|
||||||
|
* Add PAM output support to dwebp
|
||||||
|
|
||||||
|
- 7/19/12: version 0.1.99
|
||||||
|
* This is a pre-release of 0.2.0, not an rc to allow for further
|
||||||
|
incompatible changes based on user feedback.
|
||||||
|
* Alpha channel encode/decode support.
|
||||||
|
* Lossless encoder/decoder.
|
||||||
|
* Add TIFF input support to cwebp.
|
||||||
|
Incompatible changes:
|
||||||
|
* The encode ABI has been modified to support alpha encoding.
|
||||||
|
* Deprecated function WebPINew() has been removed.
|
||||||
|
* Decode function signatures have changed to consistently use size_t over
|
||||||
|
int/uint32_t.
|
||||||
|
* decode_vp8.h is no longer installed system-wide.
|
||||||
|
* cwebp will encode the alpha channel if present.
|
||||||
|
|
||||||
|
- 9/19/11: version 0.1.3
|
||||||
|
* Advanced decoding APIs.
|
||||||
|
* On-the-fly cropping and rescaling of images.
|
||||||
|
* SSE2 instructions for decoding performance optimizations on x86 based
|
||||||
|
platforms.
|
||||||
|
* Support Multi-threaded decoding.
|
||||||
|
* 40% improvement in Decoding performance.
|
||||||
|
* Add support for RGB565, RGBA4444 & ARGB image colorspace.
|
||||||
|
* Better handling of large picture encoding.
|
||||||
|
|
||||||
|
- 3/25/11: version 0.1.2
|
||||||
|
* Incremental decoding: picture can be decoded byte-by-byte if needs be.
|
||||||
|
* lot of bug-fixes, consolidation and stabilization
|
||||||
|
|
||||||
|
- 2/23/11: initial release of version 0.1, with the new encoder
|
||||||
|
- 9/30/10: initial release version with only the lightweight decoder
|
23
PATENTS
Normal file
23
PATENTS
Normal file
@ -0,0 +1,23 @@
|
|||||||
|
Additional IP Rights Grant (Patents)
|
||||||
|
------------------------------------
|
||||||
|
|
||||||
|
"These implementations" means the copyrightable works that implement the WebM
|
||||||
|
codecs distributed by Google as part of the WebM Project.
|
||||||
|
|
||||||
|
Google hereby grants to you a perpetual, worldwide, non-exclusive, no-charge,
|
||||||
|
royalty-free, irrevocable (except as stated in this section) patent license to
|
||||||
|
make, have made, use, offer to sell, sell, import, transfer, and otherwise
|
||||||
|
run, modify and propagate the contents of these implementations of WebM, where
|
||||||
|
such license applies only to those patent claims, both currently owned by
|
||||||
|
Google and acquired in the future, licensable by Google that are necessarily
|
||||||
|
infringed by these implementations of WebM. This grant does not include claims
|
||||||
|
that would be infringed only as a consequence of further modification of these
|
||||||
|
implementations. If you or your agent or exclusive licensee institute or order
|
||||||
|
or agree to the institution of patent litigation or any other patent
|
||||||
|
enforcement activity against any entity (including a cross-claim or
|
||||||
|
counterclaim in a lawsuit) alleging that any of these implementations of WebM
|
||||||
|
or any code incorporated within any of these implementations of WebM
|
||||||
|
constitute direct or contributory patent infringement, or inducement of
|
||||||
|
patent infringement, then any patent rights granted to you under this License
|
||||||
|
for these implementations of WebM shall terminate as of the date such
|
||||||
|
litigation is filed.
|
245
PRESUBMIT.py
Normal file
245
PRESUBMIT.py
Normal file
@ -0,0 +1,245 @@
|
|||||||
|
# Copyright (c) 2021, Google Inc. All rights reserved.
|
||||||
|
#
|
||||||
|
# Redistribution and use in source and binary forms, with or without
|
||||||
|
# modification, are permitted provided that the following conditions are
|
||||||
|
# met:
|
||||||
|
#
|
||||||
|
# * Redistributions of source code must retain the above copyright
|
||||||
|
# notice, this list of conditions and the following disclaimer.
|
||||||
|
#
|
||||||
|
# * Redistributions in binary form must reproduce the above copyright
|
||||||
|
# notice, this list of conditions and the following disclaimer in
|
||||||
|
# the documentation and/or other materials provided with the
|
||||||
|
# distribution.
|
||||||
|
#
|
||||||
|
# * Neither the name of Google nor the names of its contributors may
|
||||||
|
# be used to endorse or promote products derived from this software
|
||||||
|
# without specific prior written permission.
|
||||||
|
#
|
||||||
|
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
||||||
|
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
||||||
|
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
|
||||||
|
# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
|
||||||
|
# HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
||||||
|
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
|
||||||
|
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
||||||
|
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
||||||
|
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
||||||
|
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
||||||
|
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||||||
|
"""Top-level presubmit script for libwebp.
|
||||||
|
|
||||||
|
See https://dev.chromium.org/developers/how-tos/depottools/presubmit-scripts for
|
||||||
|
details on the presubmit API built into depot_tools.
|
||||||
|
"""
|
||||||
|
|
||||||
|
import re
|
||||||
|
import subprocess2
|
||||||
|
|
||||||
|
USE_PYTHON3 = True
|
||||||
|
_BASH_INDENTATION = "2"
|
||||||
|
_GIT_COMMIT_SUBJECT_LENGTH = 65
|
||||||
|
_INCLUDE_BASH_FILES_ONLY = [r".*\.sh$"]
|
||||||
|
_INCLUDE_MAN_FILES_ONLY = [r"man/.+\.1$"]
|
||||||
|
_INCLUDE_SOURCE_FILES_ONLY = [r".*\.[ch]$"]
|
||||||
|
_LIBWEBP_MAX_LINE_LENGTH = 80
|
||||||
|
|
||||||
|
|
||||||
|
def _CheckCommitSubjectLength(input_api, output_api):
|
||||||
|
"""Ensures commit's subject length is no longer than 65 chars."""
|
||||||
|
name = "git-commit subject"
|
||||||
|
cmd = ["git", "log", "-1", "--pretty=%s"]
|
||||||
|
start = input_api.time.time()
|
||||||
|
proc = subprocess2.Popen(
|
||||||
|
cmd,
|
||||||
|
stderr=subprocess2.PIPE,
|
||||||
|
stdout=subprocess2.PIPE,
|
||||||
|
universal_newlines=True)
|
||||||
|
|
||||||
|
stdout, _ = proc.communicate()
|
||||||
|
duration = input_api.time.time() - start
|
||||||
|
|
||||||
|
if not re.match(r"^Revert",
|
||||||
|
stdout) and (len(stdout) - 1) > _GIT_COMMIT_SUBJECT_LENGTH:
|
||||||
|
failure_msg = (
|
||||||
|
"The commit subject: %s is too long (%d chars)\n"
|
||||||
|
"Try to keep this to 50 or less (up to 65 is permitted for "
|
||||||
|
"non-reverts).\n"
|
||||||
|
"https://www.git-scm.com/book/en/v2/Distributed-Git-Contributing-to-a-"
|
||||||
|
"Project#_commit_guidelines") % (stdout, len(stdout) - 1)
|
||||||
|
return output_api.PresubmitError("%s\n (%4.2fs) failed\n%s" %
|
||||||
|
(name, duration, failure_msg))
|
||||||
|
|
||||||
|
return output_api.PresubmitResult("%s\n (%4.2fs) success" % (name, duration))
|
||||||
|
|
||||||
|
|
||||||
|
def _CheckDuplicateFiles(input_api, output_api):
|
||||||
|
"""Ensures there are not repeated filenames."""
|
||||||
|
all_files = []
|
||||||
|
for f in input_api.change.AllFiles():
|
||||||
|
for include_file in _INCLUDE_SOURCE_FILES_ONLY:
|
||||||
|
if re.match(include_file, f):
|
||||||
|
all_files.append(f)
|
||||||
|
break
|
||||||
|
|
||||||
|
basename_to_path = {}
|
||||||
|
for f in all_files:
|
||||||
|
basename_file = input_api.basename(f)
|
||||||
|
if basename_file in basename_to_path:
|
||||||
|
basename_to_path[basename_file].append(f)
|
||||||
|
else:
|
||||||
|
basename_to_path[basename_file] = [f]
|
||||||
|
|
||||||
|
dupes = []
|
||||||
|
for files in basename_to_path.values():
|
||||||
|
if len(files) > 1:
|
||||||
|
dupes.extend(files)
|
||||||
|
|
||||||
|
if dupes:
|
||||||
|
return output_api.PresubmitError(
|
||||||
|
"Duplicate source files, rebase or rename some to make them unique:\n%s"
|
||||||
|
% dupes)
|
||||||
|
return output_api.PresubmitResult("No duplicates, success\n")
|
||||||
|
|
||||||
|
|
||||||
|
def _GetFilesToSkip(input_api):
|
||||||
|
return list(input_api.DEFAULT_FILES_TO_SKIP) + [
|
||||||
|
r"swig/.*\.py$",
|
||||||
|
r"\.pylintrc$",
|
||||||
|
]
|
||||||
|
|
||||||
|
|
||||||
|
def _RunManCmd(input_api, output_api, man_file):
|
||||||
|
"""man command wrapper."""
|
||||||
|
cmd = ["man", "--warnings", "-EUTF-8", "-l", "-Tutf8", "-Z", man_file]
|
||||||
|
name = "Check %s file." % man_file
|
||||||
|
start = input_api.time.time()
|
||||||
|
output, _ = subprocess2.communicate(
|
||||||
|
cmd, stdout=None, stderr=subprocess2.PIPE, universal_newlines=True)
|
||||||
|
duration = input_api.time.time() - start
|
||||||
|
if output[1]:
|
||||||
|
return output_api.PresubmitError("%s\n%s (%4.2fs) failed\n%s" %
|
||||||
|
(name, " ".join(cmd), duration, output[1]))
|
||||||
|
return output_api.PresubmitResult("%s\n%s (%4.2fs)\n" %
|
||||||
|
(name, " ".join(cmd), duration))
|
||||||
|
|
||||||
|
|
||||||
|
def _RunShellCheckCmd(input_api, output_api, bash_file):
|
||||||
|
"""shellcheck command wrapper."""
|
||||||
|
cmd = ["shellcheck", "-x", "-oall", "-sbash", bash_file]
|
||||||
|
name = "Check %s file." % bash_file
|
||||||
|
start = input_api.time.time()
|
||||||
|
output, rc = subprocess2.communicate(
|
||||||
|
cmd, stdout=None, stderr=subprocess2.PIPE, universal_newlines=True)
|
||||||
|
duration = input_api.time.time() - start
|
||||||
|
if rc == 0:
|
||||||
|
return output_api.PresubmitResult("%s\n%s (%4.2fs)\n" %
|
||||||
|
(name, " ".join(cmd), duration))
|
||||||
|
return output_api.PresubmitError("%s\n%s (%4.2fs) failed\n%s" %
|
||||||
|
(name, " ".join(cmd), duration, output[1]))
|
||||||
|
|
||||||
|
|
||||||
|
def _RunShfmtCheckCmd(input_api, output_api, bash_file):
|
||||||
|
"""shfmt command wrapper."""
|
||||||
|
cmd = [
|
||||||
|
"shfmt", "-i", _BASH_INDENTATION, "-bn", "-ci", "-sr", "-kp", "-d",
|
||||||
|
bash_file
|
||||||
|
]
|
||||||
|
name = "Check %s file." % bash_file
|
||||||
|
start = input_api.time.time()
|
||||||
|
output, rc = subprocess2.communicate(
|
||||||
|
cmd, stdout=None, stderr=subprocess2.PIPE, universal_newlines=True)
|
||||||
|
duration = input_api.time.time() - start
|
||||||
|
if rc == 0:
|
||||||
|
return output_api.PresubmitResult("%s\n%s (%4.2fs)\n" %
|
||||||
|
(name, " ".join(cmd), duration))
|
||||||
|
return output_api.PresubmitError("%s\n%s (%4.2fs) failed\n%s" %
|
||||||
|
(name, " ".join(cmd), duration, output[1]))
|
||||||
|
|
||||||
|
|
||||||
|
def _RunCmdOnCheckedFiles(input_api, output_api, run_cmd, files_to_check):
|
||||||
|
"""Ensure that libwebp/ files are clean."""
|
||||||
|
file_filter = lambda x: input_api.FilterSourceFile(
|
||||||
|
x, files_to_check=files_to_check, files_to_skip=None)
|
||||||
|
|
||||||
|
affected_files = input_api.change.AffectedFiles(file_filter=file_filter)
|
||||||
|
results = [
|
||||||
|
run_cmd(input_api, output_api, f.AbsoluteLocalPath())
|
||||||
|
for f in affected_files
|
||||||
|
]
|
||||||
|
return results
|
||||||
|
|
||||||
|
|
||||||
|
def _CommonChecks(input_api, output_api):
|
||||||
|
"""Ensures this patch does not have trailing spaces, extra EOLs,
|
||||||
|
or long lines.
|
||||||
|
"""
|
||||||
|
results = []
|
||||||
|
results.extend(
|
||||||
|
input_api.canned_checks.CheckChangeHasNoCrAndHasOnlyOneEol(
|
||||||
|
input_api, output_api))
|
||||||
|
results.extend(
|
||||||
|
input_api.canned_checks.CheckChangeHasNoTabs(input_api, output_api))
|
||||||
|
results.extend(
|
||||||
|
input_api.canned_checks.CheckChangeHasNoStrayWhitespace(
|
||||||
|
input_api, output_api))
|
||||||
|
results.append(_CheckCommitSubjectLength(input_api, output_api))
|
||||||
|
results.append(_CheckDuplicateFiles(input_api, output_api))
|
||||||
|
|
||||||
|
source_file_filter = lambda x: input_api.FilterSourceFile(
|
||||||
|
x, files_to_skip=_GetFilesToSkip(input_api))
|
||||||
|
results.extend(
|
||||||
|
input_api.canned_checks.CheckLongLines(
|
||||||
|
input_api,
|
||||||
|
output_api,
|
||||||
|
maxlen=_LIBWEBP_MAX_LINE_LENGTH,
|
||||||
|
source_file_filter=source_file_filter))
|
||||||
|
|
||||||
|
results.extend(
|
||||||
|
input_api.canned_checks.CheckPatchFormatted(
|
||||||
|
input_api,
|
||||||
|
output_api,
|
||||||
|
check_clang_format=False,
|
||||||
|
check_python=True,
|
||||||
|
result_factory=output_api.PresubmitError))
|
||||||
|
results.extend(
|
||||||
|
_RunCmdOnCheckedFiles(input_api, output_api, _RunManCmd,
|
||||||
|
_INCLUDE_MAN_FILES_ONLY))
|
||||||
|
# Run pylint.
|
||||||
|
results.extend(
|
||||||
|
input_api.canned_checks.RunPylint(
|
||||||
|
input_api,
|
||||||
|
output_api,
|
||||||
|
files_to_skip=_GetFilesToSkip(input_api),
|
||||||
|
pylintrc=".pylintrc",
|
||||||
|
version="2.7"))
|
||||||
|
|
||||||
|
# Binaries shellcheck and shfmt are not installed in depot_tools.
|
||||||
|
# Installation is needed
|
||||||
|
try:
|
||||||
|
subprocess2.communicate(["shellcheck", "--version"])
|
||||||
|
results.extend(
|
||||||
|
_RunCmdOnCheckedFiles(input_api, output_api, _RunShellCheckCmd,
|
||||||
|
_INCLUDE_BASH_FILES_ONLY))
|
||||||
|
print("shfmt")
|
||||||
|
subprocess2.communicate(["shfmt", "-version"])
|
||||||
|
results.extend(
|
||||||
|
_RunCmdOnCheckedFiles(input_api, output_api, _RunShfmtCheckCmd,
|
||||||
|
_INCLUDE_BASH_FILES_ONLY))
|
||||||
|
except OSError as os_error:
|
||||||
|
results.append(
|
||||||
|
output_api.PresubmitPromptWarning(
|
||||||
|
"%s\nPlease install missing binaries locally." % os_error.args[0]))
|
||||||
|
return results
|
||||||
|
|
||||||
|
|
||||||
|
def CheckChangeOnUpload(input_api, output_api):
|
||||||
|
results = []
|
||||||
|
results.extend(_CommonChecks(input_api, output_api))
|
||||||
|
return results
|
||||||
|
|
||||||
|
|
||||||
|
def CheckChangeOnCommit(input_api, output_api):
|
||||||
|
results = []
|
||||||
|
results.extend(_CommonChecks(input_api, output_api))
|
||||||
|
return results
|
53
README.md
Normal file
53
README.md
Normal file
@ -0,0 +1,53 @@
|
|||||||
|
# WebP Codec
|
||||||
|
|
||||||
|
```
|
||||||
|
__ __ ____ ____ ____
|
||||||
|
/ \\/ \/ _ \/ _ )/ _ \
|
||||||
|
\ / __/ _ \ __/
|
||||||
|
\__\__/\____/\_____/__/ ____ ___
|
||||||
|
/ _/ / \ \ / _ \/ _/
|
||||||
|
/ \_/ / / \ \ __/ \__
|
||||||
|
\____/____/\_____/_____/____/v1.3.1
|
||||||
|
```
|
||||||
|
|
||||||
|
WebP codec is a library to encode and decode images in WebP format. This package
|
||||||
|
contains the library that can be used in other programs to add WebP support, as
|
||||||
|
well as the command line tools 'cwebp' and 'dwebp' to compress and decompress
|
||||||
|
images respectively.
|
||||||
|
|
||||||
|
See https://developers.google.com/speed/webp for details on the image format.
|
||||||
|
|
||||||
|
The latest source tree is available at
|
||||||
|
https://chromium.googlesource.com/webm/libwebp
|
||||||
|
|
||||||
|
It is released under the same license as the WebM project. See
|
||||||
|
https://www.webmproject.org/license/software/ or the "COPYING" file for details.
|
||||||
|
An additional intellectual property rights grant can be found in the file
|
||||||
|
PATENTS.
|
||||||
|
|
||||||
|
## Building
|
||||||
|
|
||||||
|
See the [building documentation](doc/building.md).
|
||||||
|
|
||||||
|
## Encoding and Decoding Tools
|
||||||
|
|
||||||
|
The examples/ directory contains tools to encode and decode images and
|
||||||
|
animations, view information about WebP images, and more. See the
|
||||||
|
[tools documentation](doc/tools.md).
|
||||||
|
|
||||||
|
## APIs
|
||||||
|
|
||||||
|
See the [APIs documentation](doc/api.md), and API usage examples in the
|
||||||
|
`examples/` directory.
|
||||||
|
|
||||||
|
## Bugs
|
||||||
|
|
||||||
|
Please report all bugs to the issue tracker: https://bugs.chromium.org/p/webp
|
||||||
|
|
||||||
|
Patches welcome! See [how to contribute](CONTRIBUTING.md).
|
||||||
|
|
||||||
|
## Discuss
|
||||||
|
|
||||||
|
Email: webp-discuss@webmproject.org
|
||||||
|
|
||||||
|
Web: https://groups.google.com/a/webmproject.org/group/webp-discuss
|
2
autogen.sh
Executable file
2
autogen.sh
Executable file
@ -0,0 +1,2 @@
|
|||||||
|
#! /bin/sh -e
|
||||||
|
exec autoreconf -fi
|
444
build.gradle
Normal file
444
build.gradle
Normal file
@ -0,0 +1,444 @@
|
|||||||
|
// Define dependencies.
|
||||||
|
buildscript {
|
||||||
|
repositories {
|
||||||
|
maven {
|
||||||
|
url "https://jcenter.bintray.com"
|
||||||
|
}
|
||||||
|
}
|
||||||
|
dependencies {
|
||||||
|
classpath "com.android.tools.build:gradle:${ANDROID_GRADLE_PLUGIN_VERSION}"
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
// Define versions in the project.
|
||||||
|
project.ext {
|
||||||
|
buildToolsVersion = "${BUILD_TOOLS_VERSION}"
|
||||||
|
compileSdkVersion = COMPILE_SDK_VERSION.toInteger()
|
||||||
|
}
|
||||||
|
|
||||||
|
// Core libraries and executables.
|
||||||
|
apply plugin: "c"
|
||||||
|
def NEON
|
||||||
|
model {
|
||||||
|
buildTypes {
|
||||||
|
debug
|
||||||
|
release
|
||||||
|
}
|
||||||
|
platforms {
|
||||||
|
arm {
|
||||||
|
architecture "arm"
|
||||||
|
}
|
||||||
|
arm64 {
|
||||||
|
architecture "arm64"
|
||||||
|
}
|
||||||
|
x86 {
|
||||||
|
architecture "x86"
|
||||||
|
}
|
||||||
|
x64 {
|
||||||
|
architecture "x86_64"
|
||||||
|
}
|
||||||
|
mips32r2
|
||||||
|
mips32r5
|
||||||
|
mips64r6
|
||||||
|
}
|
||||||
|
toolChains {
|
||||||
|
gcc(Gcc) {
|
||||||
|
target("mips32r2") {
|
||||||
|
cCompiler.args "-mips32r2"
|
||||||
|
}
|
||||||
|
target("mips32r5") {
|
||||||
|
cCompiler.args "-mips32r5"
|
||||||
|
}
|
||||||
|
target("mips64r6") {
|
||||||
|
cCompiler.args "-mips64r6"
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
binaries {
|
||||||
|
all {
|
||||||
|
if (toolChain in Gcc) {
|
||||||
|
cCompiler.args "-fPIC"
|
||||||
|
cCompiler.args "-Wall"
|
||||||
|
cCompiler.define "ANDROID"
|
||||||
|
cCompiler.define "HAVE_MALLOC_H"
|
||||||
|
}
|
||||||
|
// Optimizations.
|
||||||
|
if (buildType == buildTypes.release) {
|
||||||
|
if (toolChain in Gcc) {
|
||||||
|
cCompiler.args "-finline-functions"
|
||||||
|
cCompiler.args "-ffast-math"
|
||||||
|
cCompiler.args "-ffunction-sections"
|
||||||
|
cCompiler.args "-fdata-sections"
|
||||||
|
}
|
||||||
|
if (toolChain in Clang) {
|
||||||
|
cCompiler.args "-frename-registers -s"
|
||||||
|
}
|
||||||
|
}
|
||||||
|
// mips32 fails to build with clang from r14b
|
||||||
|
// https://bugs.chromium.org/p/webp/issues/detail?id=343
|
||||||
|
if (toolChain in Clang) {
|
||||||
|
if (getTargetPlatform() == "mips") {
|
||||||
|
cCompiler.args "-no-integrated-as"
|
||||||
|
}
|
||||||
|
}
|
||||||
|
// Check for NEON usage.
|
||||||
|
if (getTargetPlatform() == "arm") {
|
||||||
|
NEON = "c.neon"
|
||||||
|
cCompiler.define "HAVE_CPU_FEATURES_H"
|
||||||
|
} else {
|
||||||
|
NEON = "c"
|
||||||
|
}
|
||||||
|
|
||||||
|
cCompiler.args "-I" + file(".").absolutePath
|
||||||
|
}
|
||||||
|
// Link to pthread for shared libraries.
|
||||||
|
withType(SharedLibraryBinarySpec) {
|
||||||
|
if (toolChain in Gcc) {
|
||||||
|
cCompiler.define "HAVE_PTHREAD"
|
||||||
|
cCompiler.define "WEBP_USE_THREAD"
|
||||||
|
linker.args "-pthread"
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
components {
|
||||||
|
webp(NativeLibrarySpec) {
|
||||||
|
sources {
|
||||||
|
c {
|
||||||
|
source {
|
||||||
|
srcDir "sharpyuv"
|
||||||
|
include "sharpyuv.c"
|
||||||
|
include "sharpyuv_cpu.c"
|
||||||
|
include "sharpyuv_csp.c"
|
||||||
|
include "sharpyuv_dsp.c"
|
||||||
|
include "sharpyuv_gamma.c"
|
||||||
|
include "sharpyuv_neon.c"
|
||||||
|
include "sharpyuv_sse2.c"
|
||||||
|
srcDir "src/dec"
|
||||||
|
include "alpha_dec.c"
|
||||||
|
include "buffer_dec.c"
|
||||||
|
include "frame_dec.c"
|
||||||
|
include "idec_dec.c"
|
||||||
|
include "io_dec.c"
|
||||||
|
include "quant_dec.c"
|
||||||
|
include "tree_dec.c"
|
||||||
|
include "vp8_dec.c"
|
||||||
|
include "vp8l_dec.c"
|
||||||
|
include "webp_dec.c"
|
||||||
|
srcDir "src/dsp"
|
||||||
|
include "alpha_processing.c"
|
||||||
|
include "alpha_processing_mips_dsp_r2.c"
|
||||||
|
include "alpha_processing_neon.$NEON"
|
||||||
|
include "alpha_processing_sse2.c"
|
||||||
|
include "alpha_processing_sse41.c"
|
||||||
|
include "cpu.c"
|
||||||
|
include "dec.c"
|
||||||
|
include "dec_clip_tables.c"
|
||||||
|
include "dec_mips32.c"
|
||||||
|
include "dec_mips_dsp_r2.c"
|
||||||
|
include "dec_msa.c"
|
||||||
|
include "dec_neon.$NEON"
|
||||||
|
include "dec_sse2.c"
|
||||||
|
include "dec_sse41.c"
|
||||||
|
include "filters.c"
|
||||||
|
include "filters_mips_dsp_r2.c"
|
||||||
|
include "filters_msa.c"
|
||||||
|
include "filters_neon.$NEON"
|
||||||
|
include "filters_sse2.c"
|
||||||
|
include "lossless.c"
|
||||||
|
include "lossless_mips_dsp_r2.c"
|
||||||
|
include "lossless_msa.c"
|
||||||
|
include "lossless_neon.$NEON"
|
||||||
|
include "lossless_sse2.c"
|
||||||
|
include "lossless_sse41.c"
|
||||||
|
include "rescaler.c"
|
||||||
|
include "rescaler_mips32.c"
|
||||||
|
include "rescaler_mips_dsp_r2.c"
|
||||||
|
include "rescaler_msa.c"
|
||||||
|
include "rescaler_neon.$NEON"
|
||||||
|
include "rescaler_sse2.c"
|
||||||
|
include "upsampling.c"
|
||||||
|
include "upsampling_mips_dsp_r2.c"
|
||||||
|
include "upsampling_msa.c"
|
||||||
|
include "upsampling_neon.$NEON"
|
||||||
|
include "upsampling_sse2.c"
|
||||||
|
include "upsampling_sse41.c"
|
||||||
|
include "yuv.c"
|
||||||
|
include "yuv_mips32.c"
|
||||||
|
include "yuv_mips_dsp_r2.c"
|
||||||
|
include "yuv_neon.$NEON"
|
||||||
|
include "yuv_sse2.c"
|
||||||
|
include "yuv_sse41.c"
|
||||||
|
srcDir "src/utils"
|
||||||
|
include "bit_reader_utils.c"
|
||||||
|
include "color_cache_utils.c"
|
||||||
|
include "filters_utils.c"
|
||||||
|
include "huffman_utils.c"
|
||||||
|
include "palette.c"
|
||||||
|
include "quant_levels_dec_utils.c"
|
||||||
|
include "random_utils.c"
|
||||||
|
include "rescaler_utils.c"
|
||||||
|
include "thread_utils.c"
|
||||||
|
include "utils.c"
|
||||||
|
srcDir "src/dsp"
|
||||||
|
include "cost.c"
|
||||||
|
include "cost_mips32.c"
|
||||||
|
include "cost_mips_dsp_r2.c"
|
||||||
|
include "cost_neon.$NEON"
|
||||||
|
include "cost_sse2.c"
|
||||||
|
include "enc.c"
|
||||||
|
include "enc_mips32.c"
|
||||||
|
include "enc_mips_dsp_r2.c"
|
||||||
|
include "enc_msa.c"
|
||||||
|
include "enc_neon.$NEON"
|
||||||
|
include "enc_sse2.c"
|
||||||
|
include "enc_sse41.c"
|
||||||
|
include "lossless_enc.c"
|
||||||
|
include "lossless_enc_mips32.c"
|
||||||
|
include "lossless_enc_mips_dsp_r2.c"
|
||||||
|
include "lossless_enc_msa.c"
|
||||||
|
include "lossless_enc_neon.$NEON"
|
||||||
|
include "lossless_enc_sse2.c"
|
||||||
|
include "lossless_enc_sse41.c"
|
||||||
|
include "ssim.c"
|
||||||
|
include "ssim_sse2.c"
|
||||||
|
srcDir "src/enc"
|
||||||
|
include "alpha_enc.c"
|
||||||
|
include "analysis_enc.c"
|
||||||
|
include "backward_references_cost_enc.c"
|
||||||
|
include "backward_references_enc.c"
|
||||||
|
include "config_enc.c"
|
||||||
|
include "cost_enc.c"
|
||||||
|
include "filter_enc.c"
|
||||||
|
include "frame_enc.c"
|
||||||
|
include "histogram_enc.c"
|
||||||
|
include "iterator_enc.c"
|
||||||
|
include "near_lossless_enc.c"
|
||||||
|
include "picture_enc.c"
|
||||||
|
include "picture_csp_enc.c"
|
||||||
|
include "picture_psnr_enc.c"
|
||||||
|
include "picture_rescale_enc.c"
|
||||||
|
include "picture_tools_enc.c"
|
||||||
|
include "predictor_enc.c"
|
||||||
|
include "quant_enc.c"
|
||||||
|
include "syntax_enc.c"
|
||||||
|
include "token_enc.c"
|
||||||
|
include "tree_enc.c"
|
||||||
|
include "vp8l_enc.c"
|
||||||
|
include "webp_enc.c"
|
||||||
|
srcDir "src/utils"
|
||||||
|
include "bit_writer_utils.c"
|
||||||
|
include "huffman_encode_utils.c"
|
||||||
|
include "quant_levels_utils.c"
|
||||||
|
}
|
||||||
|
exportedHeaders {
|
||||||
|
srcDir "src"
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
webpdemux(NativeLibrarySpec) {
|
||||||
|
sources {
|
||||||
|
c {
|
||||||
|
source {
|
||||||
|
srcDir "src/demux"
|
||||||
|
include "anim_decode.c"
|
||||||
|
include "demux.c"
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
webpmux(NativeLibrarySpec) {
|
||||||
|
sources {
|
||||||
|
c {
|
||||||
|
source {
|
||||||
|
srcDir "src/mux/"
|
||||||
|
include "anim_encode.c"
|
||||||
|
include "muxedit.c"
|
||||||
|
include "muxinternal.c"
|
||||||
|
include "muxread.c"
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
// Executables from examples.
|
||||||
|
example_util(NativeLibrarySpec) {
|
||||||
|
binaries {
|
||||||
|
all {
|
||||||
|
lib library: "webp", linkage: "static"
|
||||||
|
}
|
||||||
|
}
|
||||||
|
sources {
|
||||||
|
c {
|
||||||
|
source {
|
||||||
|
srcDir "./examples"
|
||||||
|
include "example_util.c"
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
imageio_util(NativeLibrarySpec) {
|
||||||
|
binaries {
|
||||||
|
all {
|
||||||
|
lib library: "webp", linkage: "static"
|
||||||
|
}
|
||||||
|
}
|
||||||
|
sources {
|
||||||
|
c {
|
||||||
|
source {
|
||||||
|
srcDir "./imageio"
|
||||||
|
include "imageio_util.c"
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
imagedec(NativeLibrarySpec) {
|
||||||
|
binaries {
|
||||||
|
all {
|
||||||
|
lib library: "webpdemux", linkage: "static"
|
||||||
|
lib library: "webp", linkage: "static"
|
||||||
|
}
|
||||||
|
}
|
||||||
|
sources {
|
||||||
|
c {
|
||||||
|
source {
|
||||||
|
srcDir "./imageio"
|
||||||
|
include "image_dec.c"
|
||||||
|
include "jpegdec.c"
|
||||||
|
include "metadata.c"
|
||||||
|
include "pngdec.c"
|
||||||
|
include "pnmdec.c"
|
||||||
|
include "tiffdec.c"
|
||||||
|
include "webpdec.c"
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
imageenc(NativeLibrarySpec) {
|
||||||
|
binaries {
|
||||||
|
all {
|
||||||
|
lib library: "webp", linkage: "static"
|
||||||
|
lib library: "imageio_util", linkage: "static"
|
||||||
|
}
|
||||||
|
}
|
||||||
|
sources {
|
||||||
|
c {
|
||||||
|
source {
|
||||||
|
srcDir "./imageio"
|
||||||
|
include "image_enc.c"
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
cwebp(NativeExecutableSpec) {
|
||||||
|
binaries {
|
||||||
|
all {
|
||||||
|
lib library: "example_util", linkage: "static"
|
||||||
|
lib library: "imagedec", linkage: "static"
|
||||||
|
lib library: "imageio_util", linkage: "static"
|
||||||
|
lib library: "webpdemux", linkage: "static"
|
||||||
|
lib library: "webp", linkage: "static"
|
||||||
|
}
|
||||||
|
}
|
||||||
|
sources {
|
||||||
|
c {
|
||||||
|
source {
|
||||||
|
srcDir "./examples"
|
||||||
|
include "cwebp.c"
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
dwebp(NativeExecutableSpec) {
|
||||||
|
binaries {
|
||||||
|
all {
|
||||||
|
lib library: "example_util", linkage: "static"
|
||||||
|
lib library: "imagedec", linkage: "static"
|
||||||
|
lib library: "imageenc", linkage: "static"
|
||||||
|
lib library: "imageio_util", linkage: "static"
|
||||||
|
lib library: "webpdemux", linkage: "static"
|
||||||
|
lib library: "webp"
|
||||||
|
}
|
||||||
|
}
|
||||||
|
sources {
|
||||||
|
c {
|
||||||
|
source {
|
||||||
|
srcDir "./examples"
|
||||||
|
include "dwebp.c"
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
webpmux_example(NativeExecutableSpec) {
|
||||||
|
binaries {
|
||||||
|
all {
|
||||||
|
lib library: "example_util", linkage: "static"
|
||||||
|
lib library: "imageio_util", linkage: "static"
|
||||||
|
lib library: "webpmux", linkage: "static"
|
||||||
|
lib library: "webp"
|
||||||
|
}
|
||||||
|
}
|
||||||
|
sources {
|
||||||
|
c {
|
||||||
|
source {
|
||||||
|
srcDir "./examples"
|
||||||
|
include "webpmux.c"
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
img2webp_example(NativeExecutableSpec) {
|
||||||
|
binaries {
|
||||||
|
all {
|
||||||
|
lib library: "example_util", linkage: "static"
|
||||||
|
lib library: "imagedec", linkage: "static"
|
||||||
|
lib library: "imageio_util", linkage: "static"
|
||||||
|
lib library: "webpmux", linkage: "static"
|
||||||
|
lib library: "webpdemux", linkage: "static"
|
||||||
|
lib library: "webp"
|
||||||
|
}
|
||||||
|
}
|
||||||
|
sources {
|
||||||
|
c {
|
||||||
|
source {
|
||||||
|
srcDir "./examples"
|
||||||
|
include "img2webp.c"
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
webpinfo_example(NativeExecutableSpec) {
|
||||||
|
binaries {
|
||||||
|
all {
|
||||||
|
lib library: "example_util", linkage: "static"
|
||||||
|
lib library: "imageio_util", linkage: "static"
|
||||||
|
lib library: "webp"
|
||||||
|
}
|
||||||
|
}
|
||||||
|
sources {
|
||||||
|
c {
|
||||||
|
source {
|
||||||
|
srcDir "./examples"
|
||||||
|
include "webpinfo.c"
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
tasks {
|
||||||
|
// Task to test all possible configurations.
|
||||||
|
buildAllExecutables(Task) {
|
||||||
|
dependsOn $.binaries.findAll { it.buildable }
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
18
cmake/WebPConfig.cmake.in
Normal file
18
cmake/WebPConfig.cmake.in
Normal file
@ -0,0 +1,18 @@
|
|||||||
|
set(WebP_VERSION @PROJECT_VERSION@)
|
||||||
|
set(WEBP_VERSION ${WebP_VERSION})
|
||||||
|
|
||||||
|
@PACKAGE_INIT@
|
||||||
|
|
||||||
|
if(@WEBP_USE_THREAD@)
|
||||||
|
include(CMakeFindDependencyMacro)
|
||||||
|
find_dependency(Threads REQUIRED)
|
||||||
|
endif()
|
||||||
|
|
||||||
|
include("${CMAKE_CURRENT_LIST_DIR}/@PROJECT_NAME@Targets.cmake")
|
||||||
|
|
||||||
|
set_and_check(WebP_INCLUDE_DIR "@PACKAGE_CMAKE_INSTALL_INCLUDEDIR@")
|
||||||
|
set(WEBP_INCLUDE_DIRS ${WebP_INCLUDE_DIRS})
|
||||||
|
set(WebP_LIBRARIES "@INSTALLED_LIBRARIES@")
|
||||||
|
set(WEBP_LIBRARIES "${WebP_LIBRARIES}")
|
||||||
|
|
||||||
|
check_required_components(WebP)
|
116
cmake/config.h.in
Normal file
116
cmake/config.h.in
Normal file
@ -0,0 +1,116 @@
|
|||||||
|
/* Adapted from the autotools src/webp/config.h.in. */
|
||||||
|
|
||||||
|
/* Define if building universal (internal helper macro) */
|
||||||
|
/* TODO: handle properly in CMake */
|
||||||
|
#cmakedefine AC_APPLE_UNIVERSAL_BUILD 1
|
||||||
|
|
||||||
|
/* Set to 1 if __builtin_bswap16 is available */
|
||||||
|
#cmakedefine HAVE_BUILTIN_BSWAP16 1
|
||||||
|
|
||||||
|
/* Set to 1 if __builtin_bswap32 is available */
|
||||||
|
#cmakedefine HAVE_BUILTIN_BSWAP32 1
|
||||||
|
|
||||||
|
/* Set to 1 if __builtin_bswap64 is available */
|
||||||
|
#cmakedefine HAVE_BUILTIN_BSWAP64 1
|
||||||
|
|
||||||
|
/* Define to 1 if you have the <cpu-features.h> header file. */
|
||||||
|
#cmakedefine HAVE_CPU_FEATURES_H 1
|
||||||
|
|
||||||
|
/* Define to 1 if you have the <GLUT/glut.h> header file. */
|
||||||
|
#cmakedefine HAVE_GLUT_GLUT_H 1
|
||||||
|
|
||||||
|
/* Define to 1 if you have the <GL/glut.h> header file. */
|
||||||
|
#cmakedefine HAVE_GL_GLUT_H 1
|
||||||
|
|
||||||
|
/* Define to 1 if you have the <OpenGL/glut.h> header file. */
|
||||||
|
#cmakedefine HAVE_OPENGL_GLUT_H 1
|
||||||
|
|
||||||
|
/* Define to 1 if you have the <shlwapi.h> header file. */
|
||||||
|
#cmakedefine HAVE_SHLWAPI_H 1
|
||||||
|
|
||||||
|
/* Define to 1 if you have the <unistd.h> header file. */
|
||||||
|
#cmakedefine HAVE_UNISTD_H 1
|
||||||
|
|
||||||
|
/* Define to 1 if you have the <wincodec.h> header file. */
|
||||||
|
#cmakedefine HAVE_WINCODEC_H 1
|
||||||
|
|
||||||
|
/* Define to 1 if you have the <windows.h> header file. */
|
||||||
|
#cmakedefine HAVE_WINDOWS_H 1
|
||||||
|
|
||||||
|
/* Define to the sub-directory in which libtool stores uninstalled libraries.
|
||||||
|
*/
|
||||||
|
/* TODO: handle properly in CMake */
|
||||||
|
#cmakedefine LT_OBJDIR "@LT_OBJDIR@"
|
||||||
|
|
||||||
|
/* Name of package */
|
||||||
|
#cmakedefine PACKAGE "@PROJECT_NAME@"
|
||||||
|
|
||||||
|
/* Define to the address where bug reports for this package should be sent. */
|
||||||
|
#cmakedefine PACKAGE_BUGREPORT "@PACKAGE_BUGREPORT@"
|
||||||
|
|
||||||
|
/* Define to the full name of this package. */
|
||||||
|
#cmakedefine PACKAGE_NAME "@PACKAGE_NAME@"
|
||||||
|
|
||||||
|
/* Define to the full name and version of this package. */
|
||||||
|
#cmakedefine PACKAGE_STRING "@PACKAGE_STRING@"
|
||||||
|
|
||||||
|
/* Define to the one symbol short name of this package. */
|
||||||
|
#cmakedefine PACKAGE_TARNAME "@PACKAGE_TARNAME@"
|
||||||
|
|
||||||
|
/* Define to the home page for this package. */
|
||||||
|
#cmakedefine PACKAGE_URL "@PACKAGE_URL@"
|
||||||
|
|
||||||
|
/* Define to the version of this package. */
|
||||||
|
#cmakedefine PACKAGE_VERSION "@PACKAGE_VERSION@"
|
||||||
|
|
||||||
|
/* Version number of package */
|
||||||
|
#cmakedefine VERSION "@VERSION@"
|
||||||
|
|
||||||
|
/* Set to 1 if GIF library is installed */
|
||||||
|
#cmakedefine WEBP_HAVE_GIF 1
|
||||||
|
|
||||||
|
/* Set to 1 if OpenGL is supported */
|
||||||
|
#cmakedefine WEBP_HAVE_GL 1
|
||||||
|
|
||||||
|
/* Set to 1 if JPEG library is installed */
|
||||||
|
#cmakedefine WEBP_HAVE_JPEG 1
|
||||||
|
|
||||||
|
/* Set to 1 if NEON is supported */
|
||||||
|
#cmakedefine WEBP_HAVE_NEON
|
||||||
|
|
||||||
|
/* Set to 1 if runtime detection of NEON is enabled */
|
||||||
|
/* TODO: handle properly in CMake */
|
||||||
|
#cmakedefine WEBP_HAVE_NEON_RTCD
|
||||||
|
|
||||||
|
/* Set to 1 if PNG library is installed */
|
||||||
|
#cmakedefine WEBP_HAVE_PNG 1
|
||||||
|
|
||||||
|
/* Set to 1 if SDL library is installed */
|
||||||
|
#cmakedefine WEBP_HAVE_SDL 1
|
||||||
|
|
||||||
|
/* Set to 1 if SSE2 is supported */
|
||||||
|
#cmakedefine WEBP_HAVE_SSE2 1
|
||||||
|
|
||||||
|
/* Set to 1 if SSE4.1 is supported */
|
||||||
|
#cmakedefine WEBP_HAVE_SSE41 1
|
||||||
|
|
||||||
|
/* Set to 1 if TIFF library is installed */
|
||||||
|
#cmakedefine WEBP_HAVE_TIFF 1
|
||||||
|
|
||||||
|
/* Enable near lossless encoding */
|
||||||
|
#cmakedefine WEBP_NEAR_LOSSLESS 1
|
||||||
|
|
||||||
|
/* Undefine this to disable thread support. */
|
||||||
|
#cmakedefine WEBP_USE_THREAD 1
|
||||||
|
|
||||||
|
/* Define WORDS_BIGENDIAN to 1 if your processor stores words with the most
|
||||||
|
significant byte first (like Motorola and SPARC, unlike Intel). */
|
||||||
|
#if defined AC_APPLE_UNIVERSAL_BUILD
|
||||||
|
# if defined __BIG_ENDIAN__
|
||||||
|
# define WORDS_BIGENDIAN 1
|
||||||
|
# endif
|
||||||
|
#else
|
||||||
|
# ifndef WORDS_BIGENDIAN
|
||||||
|
# undef WORDS_BIGENDIAN
|
||||||
|
# endif
|
||||||
|
#endif
|
159
cmake/cpu.cmake
Normal file
159
cmake/cpu.cmake
Normal file
@ -0,0 +1,159 @@
|
|||||||
|
# Copyright (c) 2021 Google LLC.
|
||||||
|
#
|
||||||
|
# Use of this source code is governed by a BSD-style license
|
||||||
|
# that can be found in the LICENSE file in the root of the source
|
||||||
|
# tree. An additional intellectual property rights grant can be found
|
||||||
|
# in the file PATENTS. All contributing project authors may
|
||||||
|
# be found in the AUTHORS file in the root of the source tree.
|
||||||
|
|
||||||
|
# Check for SIMD extensions.
|
||||||
|
include(CMakePushCheckState)
|
||||||
|
|
||||||
|
function(webp_check_compiler_flag WEBP_SIMD_FLAG ENABLE_SIMD)
|
||||||
|
if(NOT ENABLE_SIMD)
|
||||||
|
message(STATUS "Disabling ${WEBP_SIMD_FLAG} optimization.")
|
||||||
|
set(WEBP_HAVE_${WEBP_SIMD_FLAG} 0 PARENT_SCOPE)
|
||||||
|
return()
|
||||||
|
endif()
|
||||||
|
unset(WEBP_HAVE_FLAG_${WEBP_SIMD_FLAG} CACHE)
|
||||||
|
cmake_push_check_state()
|
||||||
|
set(CMAKE_REQUIRED_INCLUDES ${CMAKE_CURRENT_SOURCE_DIR})
|
||||||
|
check_c_source_compiles(
|
||||||
|
"
|
||||||
|
#include \"${CMAKE_CURRENT_LIST_DIR}/../src/dsp/dsp.h\"
|
||||||
|
int main(void) {
|
||||||
|
#if !defined(WEBP_USE_${WEBP_SIMD_FLAG})
|
||||||
|
this is not valid code
|
||||||
|
#endif
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
"
|
||||||
|
WEBP_HAVE_FLAG_${WEBP_SIMD_FLAG})
|
||||||
|
cmake_pop_check_state()
|
||||||
|
if(WEBP_HAVE_FLAG_${WEBP_SIMD_FLAG})
|
||||||
|
set(WEBP_HAVE_${WEBP_SIMD_FLAG} 1 PARENT_SCOPE)
|
||||||
|
else()
|
||||||
|
set(WEBP_HAVE_${WEBP_SIMD_FLAG} 0 PARENT_SCOPE)
|
||||||
|
endif()
|
||||||
|
endfunction()
|
||||||
|
|
||||||
|
# those are included in the names of WEBP_USE_* in c++ code.
|
||||||
|
set(WEBP_SIMD_FLAGS "SSE41;SSE2;MIPS32;MIPS_DSP_R2;NEON;MSA")
|
||||||
|
set(WEBP_SIMD_FILE_EXTENSIONS
|
||||||
|
"_sse41.c;_sse2.c;_mips32.c;_mips_dsp_r2.c;_neon.c;_msa.c")
|
||||||
|
if(MSVC AND CMAKE_C_COMPILER_ID STREQUAL "MSVC")
|
||||||
|
# With at least Visual Studio 12 (2013)+ /arch is not necessary to build SSE2
|
||||||
|
# or SSE4 code unless a lesser /arch is forced. MSVC does not have a SSE4
|
||||||
|
# flag, but an AVX one. Using that with SSE4 code risks generating illegal
|
||||||
|
# instructions when used on machines with SSE4 only. The flags are left for
|
||||||
|
# older (untested) versions to avoid any potential compatibility issues.
|
||||||
|
if(MSVC_VERSION GREATER_EQUAL 1800 AND NOT CMAKE_C_FLAGS MATCHES "/arch:")
|
||||||
|
set(SIMD_ENABLE_FLAGS)
|
||||||
|
else()
|
||||||
|
set(SIMD_ENABLE_FLAGS "/arch:AVX;/arch:SSE2;;;;")
|
||||||
|
endif()
|
||||||
|
set(SIMD_DISABLE_FLAGS)
|
||||||
|
else()
|
||||||
|
set(SIMD_ENABLE_FLAGS "-msse4.1;-msse2;-mips32;-mdspr2;-mfpu=neon;-mmsa")
|
||||||
|
set(SIMD_DISABLE_FLAGS "-mno-sse4.1;-mno-sse2;;-mno-dspr2;;-mno-msa")
|
||||||
|
endif()
|
||||||
|
|
||||||
|
set(WEBP_SIMD_FILES_TO_INCLUDE)
|
||||||
|
set(WEBP_SIMD_FLAGS_TO_INCLUDE)
|
||||||
|
|
||||||
|
if(${ANDROID})
|
||||||
|
if(${ANDROID_ABI} STREQUAL "armeabi-v7a")
|
||||||
|
# This is because Android studio uses the configuration "-march=armv7-a
|
||||||
|
# -mfloat-abi=softfp -mfpu=vfpv3-d16" that does not trigger neon
|
||||||
|
# optimizations but should (as this configuration does not exist anymore).
|
||||||
|
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -mfpu=neon ")
|
||||||
|
endif()
|
||||||
|
endif()
|
||||||
|
|
||||||
|
list(LENGTH WEBP_SIMD_FLAGS WEBP_SIMD_FLAGS_LENGTH)
|
||||||
|
math(EXPR WEBP_SIMD_FLAGS_RANGE "${WEBP_SIMD_FLAGS_LENGTH} - 1")
|
||||||
|
|
||||||
|
foreach(I_SIMD RANGE ${WEBP_SIMD_FLAGS_RANGE})
|
||||||
|
# With Emscripten 2.0.9 -msimd128 -mfpu=neon will enable NEON, but the source
|
||||||
|
# will fail to compile.
|
||||||
|
if(EMSCRIPTEN AND ${I_SIMD} GREATER_EQUAL 2)
|
||||||
|
break()
|
||||||
|
endif()
|
||||||
|
|
||||||
|
list(GET WEBP_SIMD_FLAGS ${I_SIMD} WEBP_SIMD_FLAG)
|
||||||
|
|
||||||
|
# First try with no extra flag added as the compiler might have default flags
|
||||||
|
# (especially on Android).
|
||||||
|
unset(WEBP_HAVE_${WEBP_SIMD_FLAG} CACHE)
|
||||||
|
cmake_push_check_state()
|
||||||
|
set(CMAKE_REQUIRED_FLAGS)
|
||||||
|
webp_check_compiler_flag(${WEBP_SIMD_FLAG} ${WEBP_ENABLE_SIMD})
|
||||||
|
if(NOT WEBP_HAVE_${WEBP_SIMD_FLAG})
|
||||||
|
list(GET SIMD_ENABLE_FLAGS ${I_SIMD} SIMD_COMPILE_FLAG)
|
||||||
|
if(EMSCRIPTEN)
|
||||||
|
set(SIMD_COMPILE_FLAG "-msimd128 ${SIMD_COMPILE_FLAG}")
|
||||||
|
endif()
|
||||||
|
set(CMAKE_REQUIRED_FLAGS ${SIMD_COMPILE_FLAG})
|
||||||
|
webp_check_compiler_flag(${WEBP_SIMD_FLAG} ${WEBP_ENABLE_SIMD})
|
||||||
|
else()
|
||||||
|
if(MSVC AND SIMD_ENABLE_FLAGS)
|
||||||
|
# The detection for SSE2/SSE4 support under MSVC is based on the compiler
|
||||||
|
# version so e.g., clang-cl will require flags to enable the assembly.
|
||||||
|
list(GET SIMD_ENABLE_FLAGS ${I_SIMD} SIMD_COMPILE_FLAG)
|
||||||
|
else()
|
||||||
|
set(SIMD_COMPILE_FLAG " ")
|
||||||
|
endif()
|
||||||
|
endif()
|
||||||
|
# Check which files we should include or not.
|
||||||
|
list(GET WEBP_SIMD_FILE_EXTENSIONS ${I_SIMD} WEBP_SIMD_FILE_EXTENSION)
|
||||||
|
file(GLOB SIMD_FILES "${CMAKE_CURRENT_LIST_DIR}/../"
|
||||||
|
"src/dsp/*${WEBP_SIMD_FILE_EXTENSION}")
|
||||||
|
if(WEBP_HAVE_${WEBP_SIMD_FLAG})
|
||||||
|
# Memorize the file and flags.
|
||||||
|
foreach(FILE ${SIMD_FILES})
|
||||||
|
list(APPEND WEBP_SIMD_FILES_TO_INCLUDE ${FILE})
|
||||||
|
list(APPEND WEBP_SIMD_FLAGS_TO_INCLUDE ${SIMD_COMPILE_FLAG})
|
||||||
|
endforeach()
|
||||||
|
else()
|
||||||
|
# Remove the file from the list.
|
||||||
|
foreach(FILE ${SIMD_FILES})
|
||||||
|
list(APPEND WEBP_SIMD_FILES_NOT_TO_INCLUDE ${FILE})
|
||||||
|
endforeach()
|
||||||
|
# Explicitly disable SIMD.
|
||||||
|
if(SIMD_DISABLE_FLAGS)
|
||||||
|
list(GET SIMD_DISABLE_FLAGS ${I_SIMD} SIMD_COMPILE_FLAG)
|
||||||
|
include(CheckCCompilerFlag)
|
||||||
|
if(SIMD_COMPILE_FLAG)
|
||||||
|
# Between 3.17.0 and 3.18.2 check_cxx_compiler_flag() sets a normal
|
||||||
|
# variable at parent scope while check_cxx_source_compiles() continues
|
||||||
|
# to set an internal cache variable, so we unset both to avoid the
|
||||||
|
# failure / success state persisting between checks. See
|
||||||
|
# https://gitlab.kitware.com/cmake/cmake/-/issues/21207.
|
||||||
|
unset(HAS_COMPILE_FLAG)
|
||||||
|
unset(HAS_COMPILE_FLAG CACHE)
|
||||||
|
check_c_compiler_flag(${SIMD_COMPILE_FLAG} HAS_COMPILE_FLAG)
|
||||||
|
if(HAS_COMPILE_FLAG)
|
||||||
|
# Do one more check for Clang to circumvent CMake issue 13194.
|
||||||
|
if(COMMAND check_compiler_flag_common_patterns)
|
||||||
|
# Only in CMake 3.0 and above.
|
||||||
|
check_compiler_flag_common_patterns(COMMON_PATTERNS)
|
||||||
|
else()
|
||||||
|
set(COMMON_PATTERNS)
|
||||||
|
endif()
|
||||||
|
set(CMAKE_REQUIRED_DEFINITIONS ${SIMD_COMPILE_FLAG})
|
||||||
|
check_c_source_compiles(
|
||||||
|
"int main(void) {return 0;}" FLAG_${SIMD_COMPILE_FLAG} FAIL_REGEX
|
||||||
|
"warning: argument unused during compilation:" ${COMMON_PATTERNS})
|
||||||
|
if(NOT FLAG_${SIMD_COMPILE_FLAG})
|
||||||
|
unset(HAS_COMPILE_FLAG)
|
||||||
|
unset(HAS_COMPILE_FLAG CACHE)
|
||||||
|
endif()
|
||||||
|
endif()
|
||||||
|
if(HAS_COMPILE_FLAG)
|
||||||
|
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${SIMD_COMPILE_FLAG}")
|
||||||
|
endif()
|
||||||
|
endif()
|
||||||
|
endif()
|
||||||
|
endif()
|
||||||
|
cmake_pop_check_state()
|
||||||
|
endforeach()
|
172
cmake/deps.cmake
Normal file
172
cmake/deps.cmake
Normal file
@ -0,0 +1,172 @@
|
|||||||
|
# Copyright (c) 2021 Google LLC.
|
||||||
|
#
|
||||||
|
# Use of this source code is governed by a BSD-style license
|
||||||
|
# that can be found in the LICENSE file in the root of the source
|
||||||
|
# tree. An additional intellectual property rights grant can be found
|
||||||
|
# in the file PATENTS. All contributing project authors may
|
||||||
|
# be found in the AUTHORS file in the root of the source tree.
|
||||||
|
|
||||||
|
# Generate the config.h to compile with specific intrinsics / libs.
|
||||||
|
|
||||||
|
# Check for compiler options.
|
||||||
|
include(CheckCSourceCompiles)
|
||||||
|
check_c_source_compiles(
|
||||||
|
"
|
||||||
|
int main(void) {
|
||||||
|
(void)__builtin_bswap16(0);
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
"
|
||||||
|
HAVE_BUILTIN_BSWAP16)
|
||||||
|
check_c_source_compiles(
|
||||||
|
"
|
||||||
|
int main(void) {
|
||||||
|
(void)__builtin_bswap32(0);
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
"
|
||||||
|
HAVE_BUILTIN_BSWAP32)
|
||||||
|
check_c_source_compiles(
|
||||||
|
"
|
||||||
|
int main(void) {
|
||||||
|
(void)__builtin_bswap64(0);
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
"
|
||||||
|
HAVE_BUILTIN_BSWAP64)
|
||||||
|
|
||||||
|
# Check for libraries.
|
||||||
|
if(WEBP_USE_THREAD)
|
||||||
|
find_package(Threads)
|
||||||
|
if(Threads_FOUND)
|
||||||
|
# work around cmake bug on QNX (https://cmake.org/Bug/view.php?id=11333)
|
||||||
|
if(CMAKE_USE_PTHREADS_INIT AND NOT CMAKE_SYSTEM_NAME STREQUAL "QNX")
|
||||||
|
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -pthread")
|
||||||
|
endif()
|
||||||
|
list(APPEND WEBP_DEP_LIBRARIES Threads::Threads)
|
||||||
|
endif()
|
||||||
|
set(WEBP_USE_THREAD ${Threads_FOUND})
|
||||||
|
endif()
|
||||||
|
|
||||||
|
# TODO: this seems unused, check with autotools.
|
||||||
|
set(LT_OBJDIR ".libs/")
|
||||||
|
|
||||||
|
# Only useful for vwebp, so useless for now.
|
||||||
|
find_package(OpenGL)
|
||||||
|
set(WEBP_HAVE_GL ${OPENGL_FOUND})
|
||||||
|
|
||||||
|
# Check if we need to link to the C math library. We do not look for it as it is
|
||||||
|
# not found when cross-compiling, while it is here.
|
||||||
|
check_c_source_compiles(
|
||||||
|
"
|
||||||
|
#include <math.h>
|
||||||
|
int main(int argc, char** argv) {
|
||||||
|
return (int)pow(argc, 2.5);
|
||||||
|
}
|
||||||
|
"
|
||||||
|
HAVE_MATH_LIBRARY)
|
||||||
|
if(NOT HAVE_MATH_LIBRARY)
|
||||||
|
message(STATUS "Adding -lm flag.")
|
||||||
|
list(APPEND SHARPYUV_DEP_LIBRARIES m)
|
||||||
|
list(APPEND WEBP_DEP_LIBRARIES m)
|
||||||
|
endif()
|
||||||
|
|
||||||
|
# Find the standard image libraries.
|
||||||
|
set(WEBP_DEP_IMG_LIBRARIES)
|
||||||
|
set(WEBP_DEP_IMG_INCLUDE_DIRS)
|
||||||
|
if(WEBP_FIND_IMG_LIBS)
|
||||||
|
foreach(I_LIB PNG JPEG TIFF)
|
||||||
|
# Disable tiff when compiling in static mode as it is failing on Ubuntu.
|
||||||
|
if(WEBP_LINK_STATIC AND ${I_LIB} STREQUAL "TIFF")
|
||||||
|
message(STATUS "TIFF is disabled when statically linking.")
|
||||||
|
continue()
|
||||||
|
endif()
|
||||||
|
find_package(${I_LIB})
|
||||||
|
set(WEBP_HAVE_${I_LIB} ${${I_LIB}_FOUND})
|
||||||
|
if(${I_LIB}_FOUND)
|
||||||
|
list(APPEND WEBP_DEP_IMG_LIBRARIES ${${I_LIB}_LIBRARIES})
|
||||||
|
list(APPEND WEBP_DEP_IMG_INCLUDE_DIRS ${${I_LIB}_INCLUDE_DIR}
|
||||||
|
${${I_LIB}_INCLUDE_DIRS})
|
||||||
|
endif()
|
||||||
|
endforeach()
|
||||||
|
if(WEBP_DEP_IMG_INCLUDE_DIRS)
|
||||||
|
list(REMOVE_DUPLICATES WEBP_DEP_IMG_INCLUDE_DIRS)
|
||||||
|
endif()
|
||||||
|
|
||||||
|
# GIF detection, gifdec isn't part of the imageio lib.
|
||||||
|
include(CMakePushCheckState)
|
||||||
|
set(WEBP_DEP_GIF_LIBRARIES)
|
||||||
|
set(WEBP_DEP_GIF_INCLUDE_DIRS)
|
||||||
|
find_package(GIF)
|
||||||
|
set(WEBP_HAVE_GIF ${GIF_FOUND})
|
||||||
|
if(GIF_FOUND)
|
||||||
|
# GIF find_package only locates the header and library, it doesn't fail
|
||||||
|
# compile tests when detecting the version, but falls back to 3 (as of at
|
||||||
|
# least cmake 3.7.2). Make sure the library links to avoid incorrect
|
||||||
|
# detection when cross compiling.
|
||||||
|
cmake_push_check_state()
|
||||||
|
set(CMAKE_REQUIRED_LIBRARIES ${GIF_LIBRARIES})
|
||||||
|
set(CMAKE_REQUIRED_INCLUDES ${GIF_INCLUDE_DIR})
|
||||||
|
check_c_source_compiles(
|
||||||
|
"
|
||||||
|
#include <gif_lib.h>
|
||||||
|
int main(void) {
|
||||||
|
(void)DGifOpenFileHandle;
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
"
|
||||||
|
GIF_COMPILES)
|
||||||
|
cmake_pop_check_state()
|
||||||
|
if(GIF_COMPILES)
|
||||||
|
list(APPEND WEBP_DEP_GIF_LIBRARIES ${GIF_LIBRARIES})
|
||||||
|
list(APPEND WEBP_DEP_GIF_INCLUDE_DIRS ${GIF_INCLUDE_DIR})
|
||||||
|
else()
|
||||||
|
unset(GIF_FOUND)
|
||||||
|
endif()
|
||||||
|
endif()
|
||||||
|
endif()
|
||||||
|
|
||||||
|
# Check for specific headers.
|
||||||
|
include(CheckIncludeFiles)
|
||||||
|
check_include_files(GLUT/glut.h HAVE_GLUT_GLUT_H)
|
||||||
|
check_include_files(GL/glut.h HAVE_GL_GLUT_H)
|
||||||
|
check_include_files(OpenGL/glut.h HAVE_OPENGL_GLUT_H)
|
||||||
|
check_include_files(shlwapi.h HAVE_SHLWAPI_H)
|
||||||
|
check_include_files(unistd.h HAVE_UNISTD_H)
|
||||||
|
check_include_files(wincodec.h HAVE_WINCODEC_H)
|
||||||
|
check_include_files(windows.h HAVE_WINDOWS_H)
|
||||||
|
|
||||||
|
# Windows specifics
|
||||||
|
if(HAVE_WINCODEC_H)
|
||||||
|
list(APPEND WEBP_DEP_LIBRARIES shlwapi ole32 windowscodecs)
|
||||||
|
endif()
|
||||||
|
|
||||||
|
# Check for SIMD extensions.
|
||||||
|
include(${CMAKE_CURRENT_LIST_DIR}/cpu.cmake)
|
||||||
|
|
||||||
|
# Define extra info.
|
||||||
|
set(PACKAGE ${PROJECT_NAME})
|
||||||
|
set(PACKAGE_NAME ${PROJECT_NAME})
|
||||||
|
|
||||||
|
# Read from configure.ac.
|
||||||
|
file(READ ${CMAKE_CURRENT_SOURCE_DIR}/configure.ac CONFIGURE_AC)
|
||||||
|
string(REGEX MATCHALL "\\[([0-9a-z\\.:/]*)\\]" CONFIGURE_AC_PACKAGE_INFO
|
||||||
|
${CONFIGURE_AC})
|
||||||
|
function(strip_bracket VAR)
|
||||||
|
string(LENGTH ${${VAR}} TMP_LEN)
|
||||||
|
math(EXPR TMP_LEN ${TMP_LEN}-2)
|
||||||
|
string(SUBSTRING ${${VAR}} 1 ${TMP_LEN} TMP_SUB)
|
||||||
|
set(${VAR} ${TMP_SUB} PARENT_SCOPE)
|
||||||
|
endfunction()
|
||||||
|
|
||||||
|
list(GET CONFIGURE_AC_PACKAGE_INFO 1 PACKAGE_VERSION)
|
||||||
|
strip_bracket(PACKAGE_VERSION)
|
||||||
|
list(GET CONFIGURE_AC_PACKAGE_INFO 2 PACKAGE_BUGREPORT)
|
||||||
|
strip_bracket(PACKAGE_BUGREPORT)
|
||||||
|
list(GET CONFIGURE_AC_PACKAGE_INFO 3 PACKAGE_URL)
|
||||||
|
strip_bracket(PACKAGE_URL)
|
||||||
|
|
||||||
|
# Build more info.
|
||||||
|
set(PACKAGE_STRING "${PACKAGE_NAME} ${PACKAGE_VERSION}")
|
||||||
|
set(PACKAGE_TARNAME ${PACKAGE_NAME})
|
||||||
|
set(VERSION ${PACKAGE_VERSION})
|
4
codereview.settings
Normal file
4
codereview.settings
Normal file
@ -0,0 +1,4 @@
|
|||||||
|
# This file is used by git cl to get repository specific information.
|
||||||
|
GERRIT_HOST: True
|
||||||
|
CODE_REVIEW_SERVER: chromium-review.googlesource.com
|
||||||
|
GERRIT_SQUASH_UPLOADS: False
|
803
configure.ac
Normal file
803
configure.ac
Normal file
@ -0,0 +1,803 @@
|
|||||||
|
AC_INIT([libwebp], [1.3.1],
|
||||||
|
[https://bugs.chromium.org/p/webp],,
|
||||||
|
[https://developers.google.com/speed/webp])
|
||||||
|
AC_CANONICAL_HOST
|
||||||
|
AC_PREREQ([2.60])
|
||||||
|
AM_INIT_AUTOMAKE([-Wall foreign subdir-objects])
|
||||||
|
|
||||||
|
dnl === automake >= 1.12 requires this for 'unusual archivers' support.
|
||||||
|
dnl === it must occur before LT_INIT (AC_PROG_LIBTOOL).
|
||||||
|
m4_ifdef([AM_PROG_AR], [AM_PROG_AR])
|
||||||
|
|
||||||
|
dnl === AC_PROG_LIBTOOL is deprecated.
|
||||||
|
m4_ifdef([LT_INIT], [LT_INIT], [AC_PROG_LIBTOOL])
|
||||||
|
AC_PROG_SED
|
||||||
|
AM_PROG_CC_C_O
|
||||||
|
|
||||||
|
dnl === Enable less verbose output when building.
|
||||||
|
m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])])
|
||||||
|
|
||||||
|
dnl == test endianness
|
||||||
|
AC_C_BIGENDIAN
|
||||||
|
|
||||||
|
dnl === SET_IF_UNSET(shell_var, value)
|
||||||
|
dnl === Set the shell variable 'shell_var' to 'value' if it is unset.
|
||||||
|
AC_DEFUN([SET_IF_UNSET], [test "${$1+set}" = "set" || $1=$2])
|
||||||
|
|
||||||
|
AC_ARG_ENABLE([everything],
|
||||||
|
AS_HELP_STRING([--enable-everything],
|
||||||
|
[Enable all optional targets. These can still be
|
||||||
|
disabled with --disable-target]),
|
||||||
|
[SET_IF_UNSET([enable_libsharpyuv], [$enableval])
|
||||||
|
SET_IF_UNSET([enable_libwebpdecoder], [$enableval])
|
||||||
|
SET_IF_UNSET([enable_libwebpdemux], [$enableval])
|
||||||
|
SET_IF_UNSET([enable_libwebpextras], [$enableval])
|
||||||
|
SET_IF_UNSET([enable_libwebpmux], [$enableval])])
|
||||||
|
|
||||||
|
dnl === Check whether libwebpmux should be built
|
||||||
|
AC_MSG_CHECKING(whether libwebpmux is to be built)
|
||||||
|
AC_ARG_ENABLE([libwebpmux],
|
||||||
|
AS_HELP_STRING([--disable-libwebpmux],
|
||||||
|
[Disable libwebpmux @<:@default=no@:>@]),
|
||||||
|
[], [enable_libwebpmux=yes])
|
||||||
|
AC_MSG_RESULT(${enable_libwebpmux-no})
|
||||||
|
AM_CONDITIONAL([BUILD_MUX], [test "$enable_libwebpmux" = "yes"])
|
||||||
|
|
||||||
|
dnl === Check whether libwebpdemux should be built
|
||||||
|
AC_MSG_CHECKING(whether libwebpdemux is to be built)
|
||||||
|
AC_ARG_ENABLE([libwebpdemux],
|
||||||
|
AS_HELP_STRING([--disable-libwebpdemux],
|
||||||
|
[Disable libwebpdemux @<:@default=no@:>@]),
|
||||||
|
[], [enable_libwebpdemux=yes])
|
||||||
|
AC_MSG_RESULT(${enable_libwebpdemux-no})
|
||||||
|
AM_CONDITIONAL([BUILD_DEMUX], [test "$enable_libwebpdemux" = "yes"])
|
||||||
|
|
||||||
|
dnl === Check whether decoder library should be built.
|
||||||
|
AC_MSG_CHECKING(whether decoder library is to be built)
|
||||||
|
AC_ARG_ENABLE([libwebpdecoder],
|
||||||
|
AS_HELP_STRING([--enable-libwebpdecoder],
|
||||||
|
[Build libwebpdecoder @<:@default=no@:>@]))
|
||||||
|
AC_MSG_RESULT(${enable_libwebpdecoder-no})
|
||||||
|
AM_CONDITIONAL([BUILD_LIBWEBPDECODER], [test "$enable_libwebpdecoder" = "yes"])
|
||||||
|
|
||||||
|
dnl === Check whether libwebpextras should be built
|
||||||
|
AC_MSG_CHECKING(whether libwebpextras is to be built)
|
||||||
|
AC_ARG_ENABLE([libwebpextras],
|
||||||
|
AS_HELP_STRING([--enable-libwebpextras],
|
||||||
|
[Build libwebpextras @<:@default=no@:>@]))
|
||||||
|
AC_MSG_RESULT(${enable_libwebpextras-no})
|
||||||
|
AM_CONDITIONAL([BUILD_EXTRAS], [test "$enable_libwebpextras" = "yes"])
|
||||||
|
|
||||||
|
dnl === If --enable-asserts is not defined, define NDEBUG
|
||||||
|
|
||||||
|
AC_MSG_CHECKING(whether asserts are enabled)
|
||||||
|
AC_ARG_ENABLE([asserts],
|
||||||
|
AS_HELP_STRING([--enable-asserts],
|
||||||
|
[Enable assert checks]))
|
||||||
|
if test "x${enable_asserts-no}" = "xno"; then
|
||||||
|
AM_CPPFLAGS="${AM_CPPFLAGS} -DNDEBUG"
|
||||||
|
fi
|
||||||
|
AC_MSG_RESULT(${enable_asserts-no})
|
||||||
|
AC_SUBST([AM_CPPFLAGS])
|
||||||
|
|
||||||
|
AC_ARG_WITH([pkgconfigdir], AS_HELP_STRING([--with-pkgconfigdir=DIR],
|
||||||
|
[Path to the pkgconfig directory @<:@LIBDIR/pkgconfig@:>@]),
|
||||||
|
[pkgconfigdir="$withval"], [pkgconfigdir='${libdir}/pkgconfig'])
|
||||||
|
AC_SUBST([pkgconfigdir])
|
||||||
|
|
||||||
|
dnl === TEST_AND_ADD_CFLAGS(var, flag)
|
||||||
|
dnl === Checks whether $CC supports 'flag' and adds it to 'var'
|
||||||
|
dnl === on success.
|
||||||
|
AC_DEFUN([TEST_AND_ADD_CFLAGS],
|
||||||
|
[SAVED_CFLAGS="$CFLAGS"
|
||||||
|
CFLAGS="-Werror $2"
|
||||||
|
AC_MSG_CHECKING([whether $CC supports $2])
|
||||||
|
dnl Note AC_LANG_PROGRAM([]) uses an old-style main definition.
|
||||||
|
AC_COMPILE_IFELSE([AC_LANG_SOURCE([int main(void) { return 0; }])],
|
||||||
|
[AC_MSG_RESULT([yes])]
|
||||||
|
dnl Simply append the variable avoiding a
|
||||||
|
dnl compatibility ifdef for AS_VAR_APPEND as this
|
||||||
|
dnl variable shouldn't grow all that large.
|
||||||
|
[$1="${$1} $2"],
|
||||||
|
[AC_MSG_RESULT([no])])
|
||||||
|
CFLAGS="$SAVED_CFLAGS"])
|
||||||
|
TEST_AND_ADD_CFLAGS([AM_CFLAGS], [-fvisibility=hidden])
|
||||||
|
TEST_AND_ADD_CFLAGS([AM_CFLAGS], [-Wall])
|
||||||
|
TEST_AND_ADD_CFLAGS([AM_CFLAGS], [-Wconstant-conversion])
|
||||||
|
TEST_AND_ADD_CFLAGS([AM_CFLAGS], [-Wdeclaration-after-statement])
|
||||||
|
TEST_AND_ADD_CFLAGS([AM_CFLAGS], [-Wextra])
|
||||||
|
TEST_AND_ADD_CFLAGS([AM_CFLAGS], [-Wfloat-conversion])
|
||||||
|
TEST_AND_ADD_CFLAGS([AM_CFLAGS], [-Wformat -Wformat-nonliteral])
|
||||||
|
TEST_AND_ADD_CFLAGS([AM_CFLAGS], [-Wformat -Wformat-security])
|
||||||
|
TEST_AND_ADD_CFLAGS([AM_CFLAGS], [-Wmissing-declarations])
|
||||||
|
TEST_AND_ADD_CFLAGS([AM_CFLAGS], [-Wmissing-prototypes])
|
||||||
|
TEST_AND_ADD_CFLAGS([AM_CFLAGS], [-Wold-style-definition])
|
||||||
|
TEST_AND_ADD_CFLAGS([AM_CFLAGS], [-Wparentheses-equality])
|
||||||
|
TEST_AND_ADD_CFLAGS([AM_CFLAGS], [-Wshadow])
|
||||||
|
TEST_AND_ADD_CFLAGS([AM_CFLAGS], [-Wshorten-64-to-32])
|
||||||
|
TEST_AND_ADD_CFLAGS([AM_CFLAGS], [-Wundef])
|
||||||
|
TEST_AND_ADD_CFLAGS([AM_CFLAGS], [-Wunreachable-code-aggressive])
|
||||||
|
TEST_AND_ADD_CFLAGS([AM_CFLAGS], [-Wunreachable-code])
|
||||||
|
TEST_AND_ADD_CFLAGS([AM_CFLAGS], [-Wunused-but-set-variable])
|
||||||
|
TEST_AND_ADD_CFLAGS([AM_CFLAGS], [-Wunused])
|
||||||
|
TEST_AND_ADD_CFLAGS([AM_CFLAGS], [-Wvla])
|
||||||
|
# https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62040
|
||||||
|
# https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61622
|
||||||
|
AS_IF([test "$GCC" = "yes" ], [
|
||||||
|
gcc_version=`$CC -dumpversion`
|
||||||
|
gcc_wht_bug=""
|
||||||
|
case "$host_cpu" in
|
||||||
|
aarch64|arm64)
|
||||||
|
case "$gcc_version" in
|
||||||
|
4.9|4.9.0|4.9.1) gcc_wht_bug=yes ;;
|
||||||
|
esac
|
||||||
|
esac
|
||||||
|
AS_IF([test "$gcc_wht_bug" = "yes"], [
|
||||||
|
TEST_AND_ADD_CFLAGS([AM_CFLAGS], [-frename-registers])])])
|
||||||
|
# Use -flax-vector-conversions, if available, when building intrinsics with
|
||||||
|
# older versions of gcc. The flag appeared in 4.3.x, but if backported, and
|
||||||
|
# -fno-lax-vector-conversions is set, errors may occur with the intrinsics
|
||||||
|
# files along with the older system includes, e.g., emmintrin.h.
|
||||||
|
# Originally observed with cc (GCC) 4.2.1 20070831 patched [FreeBSD] (9.3).
|
||||||
|
# https://bugs.chromium.org/p/webp/issues/detail?id=274
|
||||||
|
AS_IF([test "$GCC" = "yes" ], [
|
||||||
|
case "$host_cpu" in
|
||||||
|
amd64|i?86|x86_64)
|
||||||
|
AC_COMPILE_IFELSE(
|
||||||
|
dnl only check for -flax-vector-conversions with older gcc, skip
|
||||||
|
dnl clang as it reports itself as 4.2.1, but the flag isn't needed.
|
||||||
|
[AC_LANG_SOURCE([#if !defined(__clang__) && defined(__GNUC__) && \
|
||||||
|
((__GNUC__ << 8) | __GNUC_MINOR__) < 0x403
|
||||||
|
#error old gcc
|
||||||
|
#endif
|
||||||
|
int main(void) { return 0; }
|
||||||
|
])],,
|
||||||
|
[TEST_AND_ADD_CFLAGS([INTRINSICS_CFLAGS],
|
||||||
|
[-flax-vector-conversions])])
|
||||||
|
;;
|
||||||
|
esac])
|
||||||
|
AC_SUBST([AM_CFLAGS])
|
||||||
|
|
||||||
|
dnl === Check for machine specific flags
|
||||||
|
AC_ARG_ENABLE([sse4.1],
|
||||||
|
AS_HELP_STRING([--disable-sse4.1],
|
||||||
|
[Disable detection of SSE4.1 support
|
||||||
|
@<:@default=auto@:>@]))
|
||||||
|
|
||||||
|
AS_IF([test "x$enable_sse4_1" != "xno" -a "x$enable_sse2" != "xno"], [
|
||||||
|
SSE41_FLAGS="$INTRINSICS_CFLAGS $SSE41_FLAGS"
|
||||||
|
TEST_AND_ADD_CFLAGS([SSE41_FLAGS], [-msse4.1])
|
||||||
|
AS_IF([test -n "$SSE41_FLAGS"], [
|
||||||
|
SAVED_CFLAGS=$CFLAGS
|
||||||
|
CFLAGS="$CFLAGS $SSE41_FLAGS"
|
||||||
|
AC_CHECK_HEADER([smmintrin.h],
|
||||||
|
[AC_DEFINE(WEBP_HAVE_SSE41, [1],
|
||||||
|
[Set to 1 if SSE4.1 is supported])],
|
||||||
|
[SSE41_FLAGS=""])
|
||||||
|
CFLAGS=$SAVED_CFLAGS])
|
||||||
|
AC_SUBST([SSE41_FLAGS])])
|
||||||
|
|
||||||
|
AC_ARG_ENABLE([sse2],
|
||||||
|
AS_HELP_STRING([--disable-sse2],
|
||||||
|
[Disable detection of SSE2 support
|
||||||
|
@<:@default=auto@:>@]))
|
||||||
|
|
||||||
|
AS_IF([test "x$enable_sse2" != "xno"], [
|
||||||
|
SSE2_FLAGS="$INTRINSICS_CFLAGS $SSE2_FLAGS"
|
||||||
|
TEST_AND_ADD_CFLAGS([SSE2_FLAGS], [-msse2])
|
||||||
|
AS_IF([test -n "$SSE2_FLAGS"], [
|
||||||
|
SAVED_CFLAGS=$CFLAGS
|
||||||
|
CFLAGS="$CFLAGS $SSE2_FLAGS"
|
||||||
|
AC_CHECK_HEADER([emmintrin.h],
|
||||||
|
[AC_DEFINE(WEBP_HAVE_SSE2, [1],
|
||||||
|
[Set to 1 if SSE2 is supported])],
|
||||||
|
[SSE2_FLAGS=""])
|
||||||
|
CFLAGS=$SAVED_CFLAGS])
|
||||||
|
AC_SUBST([SSE2_FLAGS])])
|
||||||
|
|
||||||
|
AC_ARG_ENABLE([neon],
|
||||||
|
AS_HELP_STRING([--disable-neon],
|
||||||
|
[Disable detection of NEON support
|
||||||
|
@<:@default=auto@:>@]))
|
||||||
|
|
||||||
|
AC_ARG_ENABLE([neon_rtcd],
|
||||||
|
AS_HELP_STRING([--disable-neon-rtcd],
|
||||||
|
[Disable runtime detection of NEON support via
|
||||||
|
/proc/cpuinfo on Linux hosts
|
||||||
|
@<:@default=auto@:>@]))
|
||||||
|
# For ARM(7) hosts:
|
||||||
|
# Both NEON flags unset and NEON support detected = build all modules with NEON
|
||||||
|
# NEON detected with the use of -mfpu=neon = build only NEON modules with NEON
|
||||||
|
AS_IF([test "x$enable_neon" != "xno"], [
|
||||||
|
case "$host_cpu" in
|
||||||
|
arm|armv7*)
|
||||||
|
# Test for NEON support without flags before falling back to -mfpu=neon
|
||||||
|
for flag in '' '-mfpu=neon'; do
|
||||||
|
LOCAL_NEON_FLAGS="$INTRINSICS_CFLAGS $NEON_FLAGS"
|
||||||
|
TEST_AND_ADD_CFLAGS([LOCAL_NEON_FLAGS], [$flag])
|
||||||
|
SAVED_CFLAGS=$CFLAGS
|
||||||
|
CFLAGS="$CFLAGS $LOCAL_NEON_FLAGS"
|
||||||
|
|
||||||
|
dnl Note AC_LANG_PROGRAM([]) uses an old-style main definition.
|
||||||
|
AC_COMPILE_IFELSE([AC_LANG_SOURCE([
|
||||||
|
#include <arm_neon.h>
|
||||||
|
int main(void) {
|
||||||
|
int8x8_t v = vdup_n_s8(0);
|
||||||
|
(void)v;
|
||||||
|
return 0;
|
||||||
|
}])],
|
||||||
|
[NEON_FLAGS="$(echo $LOCAL_NEON_FLAGS | $SED 's/^ *//')"
|
||||||
|
AS_IF([test -n "$NEON_FLAGS"], [
|
||||||
|
AS_IF([test "${host_os%%-*}" = "linux" -o \
|
||||||
|
"x$enable_neon_rtcd" = "xno"], [
|
||||||
|
CFLAGS=$SAVED_CFLAGS
|
||||||
|
AC_DEFINE(WEBP_HAVE_NEON, [1], [Set to 1 if NEON is supported])
|
||||||
|
break
|
||||||
|
],[
|
||||||
|
AC_MSG_WARN(m4_normalize([NEON runtime cpu-detection is
|
||||||
|
unavailable for ${host_os%%-*}. Force
|
||||||
|
with CFLAGS=-mfpu=neon or
|
||||||
|
--disable-neon-rtcd.]))
|
||||||
|
enable_neon_rtcd=no
|
||||||
|
NEON_FLAGS=""
|
||||||
|
])
|
||||||
|
],[
|
||||||
|
CFLAGS=$SAVED_CFLAGS
|
||||||
|
AC_DEFINE(WEBP_HAVE_NEON, [1], [Set to 1 if NEON is supported])
|
||||||
|
break
|
||||||
|
])])
|
||||||
|
CFLAGS=$SAVED_CFLAGS
|
||||||
|
done
|
||||||
|
|
||||||
|
AS_IF([test -n "$NEON_FLAGS"], [
|
||||||
|
# If NEON is available and rtcd is disabled apply NEON_FLAGS globally.
|
||||||
|
AS_IF([test "x$enable_neon_rtcd" = "xno"], [
|
||||||
|
AM_CFLAGS="$AM_CFLAGS $NEON_FLAGS"
|
||||||
|
NEON_FLAGS=""],
|
||||||
|
[AC_DEFINE(WEBP_HAVE_NEON_RTCD, [1],
|
||||||
|
[Set to 1 if runtime detection of NEON is enabled])])])
|
||||||
|
|
||||||
|
case "$host_os" in
|
||||||
|
*android*) AC_CHECK_HEADERS([cpu-features.h]) ;;
|
||||||
|
esac
|
||||||
|
;;
|
||||||
|
aarch64*|arm64*)
|
||||||
|
AC_DEFINE(WEBP_HAVE_NEON, [1], [Set to 1 if NEON is supported])
|
||||||
|
;;
|
||||||
|
esac
|
||||||
|
AC_SUBST([NEON_FLAGS])])
|
||||||
|
|
||||||
|
dnl === CLEAR_LIBVARS([var_pfx])
|
||||||
|
dnl === Clears <var_pfx>_{INCLUDES,LIBS}.
|
||||||
|
AC_DEFUN([CLEAR_LIBVARS], [$1_INCLUDES=""; $1_LIBS=""])
|
||||||
|
|
||||||
|
dnl === WITHLIB_OPTION([opt_pfx], [outvar_pfx])
|
||||||
|
dnl === Defines --with-<opt_pfx>{include,lib}dir options which set
|
||||||
|
dnl === the variables <outvar_pfx>_{INCLUDES,LIBS}.
|
||||||
|
AC_DEFUN([WITHLIB_OPTION],
|
||||||
|
[AC_ARG_WITH([$1includedir],
|
||||||
|
AS_HELP_STRING([--with-$1includedir=DIR],
|
||||||
|
[use $2 includes from DIR]),
|
||||||
|
$2_INCLUDES="-I$withval")
|
||||||
|
AC_ARG_WITH([$1libdir],
|
||||||
|
AS_HELP_STRING([--with-$1libdir=DIR],
|
||||||
|
[use $2 libraries from DIR]),
|
||||||
|
[$2_LIBS="-L$withval"])])
|
||||||
|
|
||||||
|
dnl === LIBCHECK_PROLOGUE([var_pfx])
|
||||||
|
dnl === Caches the current values of CPPFLAGS/LIBS in SAVED_* then
|
||||||
|
dnl === prepends the current values with <var_pfx>_{INCLUDES,LIBS}.
|
||||||
|
AC_DEFUN([LIBCHECK_PROLOGUE],
|
||||||
|
[SAVED_CPPFLAGS=$CPPFLAGS
|
||||||
|
SAVED_LIBS=$LIBS
|
||||||
|
CPPFLAGS="$$1_INCLUDES $CPPFLAGS"
|
||||||
|
LIBS="$$1_LIBS $LIBS"])
|
||||||
|
|
||||||
|
dnl === LIBCHECK_EPILOGUE([var_pfx])
|
||||||
|
dnl === Restores the values of CPPFLAGS/LIBS from SAVED_* and exports
|
||||||
|
dnl === <var_pfx>_{INCLUDES,LIBS} with AC_SUBST.
|
||||||
|
AC_DEFUN([LIBCHECK_EPILOGUE],
|
||||||
|
[AC_SUBST($1_LIBS)
|
||||||
|
AC_SUBST($1_INCLUDES)
|
||||||
|
CPPFLAGS=$SAVED_CPPFLAGS
|
||||||
|
LIBS=$SAVED_LIBS])
|
||||||
|
|
||||||
|
dnl === Check for gcc builtins
|
||||||
|
|
||||||
|
dnl === CHECK_FOR_BUILTIN([builtin], [param], [define])
|
||||||
|
dnl === links a C AC_LANG_PROGRAM, with <builtin>(<param>)
|
||||||
|
dnl === AC_DEFINE'ing <define> if successful.
|
||||||
|
AC_DEFUN([CHECK_FOR_BUILTIN],
|
||||||
|
[AC_LANG_PUSH([C])
|
||||||
|
AC_MSG_CHECKING([for $1])
|
||||||
|
AC_LINK_IFELSE([AC_LANG_PROGRAM([], [(void)$1($2)])],
|
||||||
|
[AC_MSG_RESULT([yes])
|
||||||
|
AC_DEFINE([$3], [1],
|
||||||
|
[Set to 1 if $1 is available])],
|
||||||
|
[AC_MSG_RESULT([no])]),
|
||||||
|
AC_LANG_POP])
|
||||||
|
|
||||||
|
dnl AC_CHECK_FUNC doesn't work with builtin's.
|
||||||
|
CHECK_FOR_BUILTIN([__builtin_bswap16], [1u << 15], [HAVE_BUILTIN_BSWAP16])
|
||||||
|
CHECK_FOR_BUILTIN([__builtin_bswap32], [1u << 31], [HAVE_BUILTIN_BSWAP32])
|
||||||
|
CHECK_FOR_BUILTIN([__builtin_bswap64], [1ull << 63], [HAVE_BUILTIN_BSWAP64])
|
||||||
|
|
||||||
|
dnl === Check for pthread support
|
||||||
|
AC_ARG_ENABLE([threading],
|
||||||
|
AS_HELP_STRING([--disable-threading],
|
||||||
|
[Disable detection of thread support]),,
|
||||||
|
[enable_threading=yes])
|
||||||
|
if test "$enable_threading" = "yes"; then
|
||||||
|
AC_MSG_NOTICE([checking for threading support...])
|
||||||
|
AX_PTHREAD([AC_DEFINE([WEBP_USE_THREAD], [1],
|
||||||
|
[Undefine this to disable thread support.])
|
||||||
|
LIBS="$PTHREAD_LIBS $LIBS"
|
||||||
|
CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
|
||||||
|
CC="$PTHREAD_CC"
|
||||||
|
],
|
||||||
|
[AC_CHECK_FUNC([_beginthreadex],
|
||||||
|
[AC_DEFINE([WEBP_USE_THREAD], [1],
|
||||||
|
[Undefine this to disable thread
|
||||||
|
support.])],
|
||||||
|
[enable_threading=no])])
|
||||||
|
fi
|
||||||
|
AC_MSG_NOTICE([checking if threading is enabled... ${enable_threading-no}])
|
||||||
|
|
||||||
|
dnl === check for OpenGL/GLUT support ===
|
||||||
|
|
||||||
|
AC_ARG_ENABLE([gl], AS_HELP_STRING([--disable-gl],
|
||||||
|
[Disable detection of OpenGL support
|
||||||
|
@<:@default=auto@:>@]))
|
||||||
|
AS_IF([test "x$enable_gl" != "xno"], [
|
||||||
|
CLEAR_LIBVARS([GL])
|
||||||
|
WITHLIB_OPTION([gl], [GL])
|
||||||
|
|
||||||
|
LIBCHECK_PROLOGUE([GL])
|
||||||
|
|
||||||
|
glut_cflags="none"
|
||||||
|
glut_ldflags="none"
|
||||||
|
case $host_os in
|
||||||
|
darwin*)
|
||||||
|
# Special case for OSX builds. Append these to give the user a chance to
|
||||||
|
# override with --with-gl*
|
||||||
|
glut_cflags="$glut_cflags|-framework GLUT -framework OpenGL"
|
||||||
|
glut_ldflags="$glut_ldflags|-framework GLUT -framework OpenGL"
|
||||||
|
# quiet deprecation warnings for glut
|
||||||
|
TEST_AND_ADD_CFLAGS([AM_CFLAGS], [-Wno-deprecated-declarations])
|
||||||
|
;;
|
||||||
|
esac
|
||||||
|
|
||||||
|
GLUT_SAVED_CPPFLAGS="$CPPFLAGS"
|
||||||
|
SAVED_IFS="$IFS"
|
||||||
|
IFS="|"
|
||||||
|
for flag in $glut_cflags; do
|
||||||
|
# restore IFS immediately as the autoconf macros may need the default.
|
||||||
|
IFS="$SAVED_IFS"
|
||||||
|
unset ac_cv_header_GL_glut_h
|
||||||
|
unset ac_cv_header_OpenGL_glut_h
|
||||||
|
|
||||||
|
case $flag in
|
||||||
|
none) ;;
|
||||||
|
*) CPPFLAGS="$flag $CPPFLAGS";;
|
||||||
|
esac
|
||||||
|
AC_CHECK_HEADERS([GL/glut.h GLUT/glut.h OpenGL/glut.h],
|
||||||
|
[glut_headers=yes;
|
||||||
|
test "$flag" = "none" || GL_INCLUDES="$CPPFLAGS";
|
||||||
|
break])
|
||||||
|
CPPFLAGS="$GLUT_SAVED_CPPFLAGS"
|
||||||
|
test "$glut_headers" = "yes" && break
|
||||||
|
done
|
||||||
|
IFS="$SAVED_IFS"
|
||||||
|
|
||||||
|
if test "$glut_headers" = "yes"; then
|
||||||
|
AC_LANG_PUSH([C])
|
||||||
|
GLUT_SAVED_LDFLAGS="$LDFLAGS"
|
||||||
|
SAVED_IFS="$IFS"
|
||||||
|
IFS="|"
|
||||||
|
for flag in $glut_ldflags; do
|
||||||
|
# restore IFS immediately as the autoconf macros may need the default.
|
||||||
|
IFS="$SAVED_IFS"
|
||||||
|
unset ac_cv_search_glBegin
|
||||||
|
|
||||||
|
case $flag in
|
||||||
|
none) ;;
|
||||||
|
*) LDFLAGS="$flag $LDFLAGS";;
|
||||||
|
esac
|
||||||
|
|
||||||
|
# find libGL
|
||||||
|
GL_SAVED_LIBS="$LIBS"
|
||||||
|
AC_SEARCH_LIBS([glBegin], [GL OpenGL opengl32])
|
||||||
|
LIBS="$GL_SAVED_LIBS"
|
||||||
|
|
||||||
|
# A direct link to libGL may not be necessary on e.g., linux.
|
||||||
|
GLUT_SAVED_LIBS="$LIBS"
|
||||||
|
for lib in "" "-lglut" "-lglut $ac_cv_search_glBegin"; do
|
||||||
|
LIBS="$lib"
|
||||||
|
AC_LINK_IFELSE(
|
||||||
|
[AC_LANG_PROGRAM([
|
||||||
|
#ifdef __cplusplus
|
||||||
|
# define EXTERN_C extern "C"
|
||||||
|
#else
|
||||||
|
# define EXTERN_C
|
||||||
|
#endif
|
||||||
|
EXTERN_C char glOrtho();
|
||||||
|
EXTERN_C char glutMainLoop();
|
||||||
|
],[
|
||||||
|
glOrtho();
|
||||||
|
glutMainLoop();
|
||||||
|
])
|
||||||
|
],
|
||||||
|
AC_DEFINE(WEBP_HAVE_GL, [1],
|
||||||
|
[Set to 1 if OpenGL is supported])
|
||||||
|
[glut_support=yes], []
|
||||||
|
)
|
||||||
|
if test "$glut_support" = "yes"; then
|
||||||
|
GL_LIBS="$LDFLAGS $lib"
|
||||||
|
break
|
||||||
|
fi
|
||||||
|
done
|
||||||
|
LIBS="$GLUT_SAVED_LIBS"
|
||||||
|
LDFLAGS="$GLUT_SAVED_LDFLAGS"
|
||||||
|
test "$glut_support" = "yes" && break
|
||||||
|
done
|
||||||
|
IFS="$SAVED_IFS"
|
||||||
|
AC_LANG_POP
|
||||||
|
fi
|
||||||
|
|
||||||
|
LIBCHECK_EPILOGUE([GL])
|
||||||
|
|
||||||
|
if test "$glut_support" = "yes" -a "$enable_libwebpdemux" = "yes"; then
|
||||||
|
build_vwebp=yes
|
||||||
|
else
|
||||||
|
AC_MSG_NOTICE(
|
||||||
|
m4_normalize([Not building vwebp.
|
||||||
|
OpenGL libraries and --enable-libwebpdemux are required.]))
|
||||||
|
fi
|
||||||
|
])
|
||||||
|
AM_CONDITIONAL([BUILD_VWEBP], [test "$build_vwebp" = "yes"])
|
||||||
|
|
||||||
|
dnl === check for SDL support ===
|
||||||
|
|
||||||
|
AC_ARG_ENABLE([sdl],
|
||||||
|
AS_HELP_STRING([--disable-sdl],
|
||||||
|
[Disable detection of SDL support
|
||||||
|
@<:@default=auto@:>@]))
|
||||||
|
AS_IF([test "x$enable_sdl" != "xno"], [
|
||||||
|
CLEAR_LIBVARS([SDL])
|
||||||
|
AC_PATH_PROGS([LIBSDL_CONFIG], [sdl-config])
|
||||||
|
if test -n "$LIBSDL_CONFIG"; then
|
||||||
|
SDL_INCLUDES=`$LIBSDL_CONFIG --cflags`
|
||||||
|
SDL_LIBS="`$LIBSDL_CONFIG --libs`"
|
||||||
|
fi
|
||||||
|
|
||||||
|
WITHLIB_OPTION([sdl], [SDL])
|
||||||
|
|
||||||
|
sdl_header="no"
|
||||||
|
LIBCHECK_PROLOGUE([SDL])
|
||||||
|
AC_CHECK_HEADER([SDL/SDL.h], [sdl_header="SDL/SDL.h"],
|
||||||
|
[AC_CHECK_HEADER([SDL.h], [sdl_header="SDL.h"],
|
||||||
|
[AC_MSG_WARN(SDL library not available - no sdl.h)])])
|
||||||
|
if test x"$sdl_header" != "xno"; then
|
||||||
|
AC_LANG_PUSH(C)
|
||||||
|
SDL_SAVED_LIBS="$LIBS"
|
||||||
|
for lib in "" "-lSDL" "-lSDLmain -lSDL"; do
|
||||||
|
LIBS="$SDL_SAVED_LIBS $lib"
|
||||||
|
# Perform a full link to ensure SDL_main is resolved if needed.
|
||||||
|
AC_LINK_IFELSE(
|
||||||
|
[AC_LANG_SOURCE([
|
||||||
|
#include <$sdl_header>
|
||||||
|
int main(int argc, char** argv) {
|
||||||
|
SDL_Init(0);
|
||||||
|
return 0;
|
||||||
|
}])],
|
||||||
|
[SDL_LIBS="$LDFLAGS $LIBS"
|
||||||
|
SDL_INCLUDES="$SDL_INCLUDES -DWEBP_HAVE_SDL"
|
||||||
|
AC_DEFINE(WEBP_HAVE_SDL, [1],
|
||||||
|
[Set to 1 if SDL library is installed])
|
||||||
|
sdl_support=yes]
|
||||||
|
)
|
||||||
|
if test x"$sdl_support" = "xyes"; then
|
||||||
|
break
|
||||||
|
fi
|
||||||
|
done
|
||||||
|
# LIBS is restored by LIBCHECK_EPILOGUE
|
||||||
|
AC_LANG_POP
|
||||||
|
if test x"$sdl_header" = "xSDL.h"; then
|
||||||
|
SDL_INCLUDES="$SDL_INCLUDES -DWEBP_HAVE_JUST_SDL_H"
|
||||||
|
fi
|
||||||
|
fi
|
||||||
|
LIBCHECK_EPILOGUE([SDL])
|
||||||
|
|
||||||
|
if test x"$sdl_support" = "xyes"; then
|
||||||
|
build_vwebp_sdl=yes
|
||||||
|
else
|
||||||
|
AC_MSG_NOTICE([Not building vwebp-sdl. SDL library is required.])
|
||||||
|
fi
|
||||||
|
])
|
||||||
|
|
||||||
|
AM_CONDITIONAL([BUILD_VWEBP_SDL], [test "$build_vwebp_sdl" = "yes"])
|
||||||
|
|
||||||
|
dnl === check for PNG support ===
|
||||||
|
|
||||||
|
AC_ARG_ENABLE([png], AS_HELP_STRING([--disable-png],
|
||||||
|
[Disable detection of PNG format support
|
||||||
|
@<:@default=auto@:>@]))
|
||||||
|
AS_IF([test "x$enable_png" != "xno"], [
|
||||||
|
CLEAR_LIBVARS([PNG])
|
||||||
|
AC_PATH_PROGS([LIBPNG_CONFIG],
|
||||||
|
[libpng-config libpng16-config libpng15-config libpng14-config \
|
||||||
|
libpng12-config])
|
||||||
|
if test -n "$LIBPNG_CONFIG"; then
|
||||||
|
PNG_INCLUDES=`$LIBPNG_CONFIG --cflags`
|
||||||
|
PNG_LIBS="`$LIBPNG_CONFIG --ldflags`"
|
||||||
|
fi
|
||||||
|
|
||||||
|
WITHLIB_OPTION([png], [PNG])
|
||||||
|
|
||||||
|
LIBCHECK_PROLOGUE([PNG])
|
||||||
|
AC_CHECK_HEADER(png.h,
|
||||||
|
AC_SEARCH_LIBS(png_get_libpng_ver, [png],
|
||||||
|
[test "$ac_cv_search_png_get_libpng_ver" = "none required" \
|
||||||
|
|| PNG_LIBS="$PNG_LIBS $ac_cv_search_png_get_libpng_ver"
|
||||||
|
PNG_INCLUDES="$PNG_INCLUDES -DWEBP_HAVE_PNG"
|
||||||
|
AC_DEFINE(WEBP_HAVE_PNG, [1],
|
||||||
|
[Set to 1 if PNG library is installed])
|
||||||
|
png_support=yes
|
||||||
|
],
|
||||||
|
[AC_MSG_WARN(Optional png library not found)
|
||||||
|
PNG_LIBS=""
|
||||||
|
PNG_INCLUDES=""
|
||||||
|
],
|
||||||
|
[$MATH_LIBS]),
|
||||||
|
[AC_MSG_WARN(png library not available - no png.h)
|
||||||
|
PNG_LIBS=""
|
||||||
|
PNG_INCLUDES=""
|
||||||
|
],
|
||||||
|
)
|
||||||
|
LIBCHECK_EPILOGUE([PNG])
|
||||||
|
])
|
||||||
|
|
||||||
|
dnl === check for JPEG support ===
|
||||||
|
|
||||||
|
AC_ARG_ENABLE([jpeg],
|
||||||
|
AS_HELP_STRING([--disable-jpeg],
|
||||||
|
[Disable detection of JPEG format support
|
||||||
|
@<:@default=auto@:>@]))
|
||||||
|
AS_IF([test "x$enable_jpeg" != "xno"], [
|
||||||
|
CLEAR_LIBVARS([JPEG])
|
||||||
|
WITHLIB_OPTION([jpeg], [JPEG])
|
||||||
|
|
||||||
|
LIBCHECK_PROLOGUE([JPEG])
|
||||||
|
AC_CHECK_HEADER(jpeglib.h,
|
||||||
|
AC_CHECK_LIB(jpeg, jpeg_set_defaults,
|
||||||
|
[JPEG_LIBS="$JPEG_LIBS -ljpeg"
|
||||||
|
JPEG_INCLUDES="$JPEG_INCLUDES -DWEBP_HAVE_JPEG"
|
||||||
|
AC_DEFINE(WEBP_HAVE_JPEG, [1],
|
||||||
|
[Set to 1 if JPEG library is installed])
|
||||||
|
jpeg_support=yes
|
||||||
|
],
|
||||||
|
AC_MSG_WARN(Optional jpeg library not found),
|
||||||
|
[$MATH_LIBS]),
|
||||||
|
AC_MSG_WARN(jpeg library not available - no jpeglib.h)
|
||||||
|
)
|
||||||
|
LIBCHECK_EPILOGUE([JPEG])
|
||||||
|
])
|
||||||
|
|
||||||
|
dnl === check for TIFF support ===
|
||||||
|
|
||||||
|
AC_ARG_ENABLE([tiff],
|
||||||
|
AS_HELP_STRING([--disable-tiff],
|
||||||
|
[Disable detection of TIFF format support
|
||||||
|
@<:@default=auto@:>@]))
|
||||||
|
AS_IF([test "x$enable_tiff" != "xno"], [
|
||||||
|
CLEAR_LIBVARS([TIFF])
|
||||||
|
WITHLIB_OPTION([tiff], [TIFF])
|
||||||
|
|
||||||
|
LIBCHECK_PROLOGUE([TIFF])
|
||||||
|
AC_CHECK_HEADER(tiffio.h,
|
||||||
|
AC_CHECK_LIB(tiff, TIFFGetVersion,
|
||||||
|
[TIFF_LIBS="$TIFF_LIBS -ltiff"
|
||||||
|
TIFF_INCLUDES="$TIFF_INCLUDES -DWEBP_HAVE_TIFF"
|
||||||
|
AC_DEFINE(WEBP_HAVE_TIFF, [1],
|
||||||
|
[Set to 1 if TIFF library is installed])
|
||||||
|
tiff_support=yes
|
||||||
|
],
|
||||||
|
AC_MSG_WARN(Optional tiff library not found),
|
||||||
|
[$MATH_LIBS]),
|
||||||
|
AC_MSG_WARN(tiff library not available - no tiffio.h)
|
||||||
|
)
|
||||||
|
LIBCHECK_EPILOGUE([TIFF])
|
||||||
|
])
|
||||||
|
|
||||||
|
dnl === check for GIF support ===
|
||||||
|
|
||||||
|
AC_ARG_ENABLE([gif], AS_HELP_STRING([--disable-gif],
|
||||||
|
[Disable detection of GIF format support
|
||||||
|
@<:@default=auto@:>@]))
|
||||||
|
AS_IF([test "x$enable_gif" != "xno"], [
|
||||||
|
CLEAR_LIBVARS([GIF])
|
||||||
|
WITHLIB_OPTION([gif], [GIF])
|
||||||
|
|
||||||
|
LIBCHECK_PROLOGUE([GIF])
|
||||||
|
AC_CHECK_HEADER(gif_lib.h,
|
||||||
|
AC_CHECK_LIB([gif], [DGifOpenFileHandle],
|
||||||
|
[GIF_LIBS="$GIF_LIBS -lgif"
|
||||||
|
AC_DEFINE(WEBP_HAVE_GIF, [1],
|
||||||
|
[Set to 1 if GIF library is installed])
|
||||||
|
gif_support=yes
|
||||||
|
],
|
||||||
|
AC_MSG_WARN(Optional gif library not found),
|
||||||
|
[$MATH_LIBS]),
|
||||||
|
AC_MSG_WARN(gif library not available - no gif_lib.h)
|
||||||
|
)
|
||||||
|
LIBCHECK_EPILOGUE([GIF])
|
||||||
|
|
||||||
|
if test "$gif_support" = "yes" -a \
|
||||||
|
"$enable_libwebpdemux" = "yes"; then
|
||||||
|
build_anim_diff=yes
|
||||||
|
else
|
||||||
|
AC_MSG_NOTICE(
|
||||||
|
[Not building anim_diff. libgif and --enable-libwebpdemux are required.])
|
||||||
|
fi
|
||||||
|
|
||||||
|
if test "$gif_support" = "yes" -a \
|
||||||
|
"$enable_libwebpmux" = "yes"; then
|
||||||
|
build_gif2webp=yes
|
||||||
|
else
|
||||||
|
AC_MSG_NOTICE(
|
||||||
|
[Not building gif2webp. libgif and --enable-libwebpmux are required.])
|
||||||
|
fi
|
||||||
|
])
|
||||||
|
AM_CONDITIONAL([BUILD_ANIMDIFF], [test "${build_anim_diff}" = "yes"])
|
||||||
|
AM_CONDITIONAL([BUILD_GIF2WEBP], [test "${build_gif2webp}" = "yes"])
|
||||||
|
|
||||||
|
if test "$enable_libwebpdemux" = "yes" -a "$enable_libwebpmux" = "yes"; then
|
||||||
|
build_img2webp=yes
|
||||||
|
else
|
||||||
|
AC_MSG_NOTICE(
|
||||||
|
m4_normalize([Not building img2webp.
|
||||||
|
--enable-libwebpdemux & --enable-libwebpmux are required.]))
|
||||||
|
fi
|
||||||
|
AM_CONDITIONAL([BUILD_IMG2WEBP], [test "${build_img2webp}" = "yes"])
|
||||||
|
|
||||||
|
if test "$enable_libwebpmux" = "yes"; then
|
||||||
|
build_webpinfo=yes
|
||||||
|
else
|
||||||
|
AC_MSG_NOTICE([Not building webpinfo. --enable-libwebpdemux is required.])
|
||||||
|
fi
|
||||||
|
AM_CONDITIONAL([BUILD_WEBPINFO], [test "${build_webpinfo}" = "yes"])
|
||||||
|
|
||||||
|
dnl === check for WIC support ===
|
||||||
|
|
||||||
|
AC_ARG_ENABLE([wic],
|
||||||
|
AS_HELP_STRING([--disable-wic],
|
||||||
|
[Disable Windows Imaging Component (WIC) detection.
|
||||||
|
@<:@default=auto@:>@]),,
|
||||||
|
[enable_wic=yes])
|
||||||
|
|
||||||
|
case $host_os in
|
||||||
|
mingw*)
|
||||||
|
if test "$enable_wic" = "yes"; then
|
||||||
|
AC_CHECK_HEADERS([wincodec.h shlwapi.h windows.h])
|
||||||
|
if test "$ac_cv_header_wincodec_h" = "yes"; then
|
||||||
|
AC_MSG_CHECKING(for Windows Imaging Component support)
|
||||||
|
SAVED_LIBS=$LIBS
|
||||||
|
LIBS="-lshlwapi -lole32 $LIBS"
|
||||||
|
# match include structure from [cd]webp.c
|
||||||
|
wic_headers="
|
||||||
|
#define INITGUID
|
||||||
|
#define CINTERFACE
|
||||||
|
#define COBJMACROS
|
||||||
|
#define _WIN32_IE 0x500
|
||||||
|
|
||||||
|
#include <shlwapi.h>
|
||||||
|
#include <windows.h>
|
||||||
|
#include <wincodec.h>
|
||||||
|
"
|
||||||
|
# test for functions from each lib and the GUID is created properly
|
||||||
|
wic_main="
|
||||||
|
int main(void) {
|
||||||
|
CLSID_WICImagingFactory;
|
||||||
|
CoInitialize(NULL);
|
||||||
|
SHCreateStreamOnFile(NULL, 0, NULL);
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
"
|
||||||
|
AC_LANG_PUSH(C)
|
||||||
|
AC_LINK_IFELSE(
|
||||||
|
[AC_LANG_SOURCE([
|
||||||
|
$wic_headers
|
||||||
|
$wic_main])],
|
||||||
|
[wic_support=yes],
|
||||||
|
[wic_support=no]
|
||||||
|
)
|
||||||
|
AC_LANG_POP
|
||||||
|
|
||||||
|
test "$wic_support" = "yes" || LIBS=$SAVED_LIBS
|
||||||
|
AC_MSG_RESULT(${wic_support-no})
|
||||||
|
fi
|
||||||
|
fi
|
||||||
|
esac
|
||||||
|
|
||||||
|
dnl === If --enable-swap-16bit-csp is defined, add -DWEBP_SWAP_16BIT_CSP=1
|
||||||
|
|
||||||
|
USE_SWAP_16BIT_CSP=""
|
||||||
|
AC_MSG_CHECKING(if --enable-swap-16bit-csp option is specified)
|
||||||
|
AC_ARG_ENABLE([swap-16bit-csp],
|
||||||
|
AS_HELP_STRING([--enable-swap-16bit-csp],
|
||||||
|
[Enable byte swap for 16 bit colorspaces]))
|
||||||
|
if test "$enable_swap_16bit_csp" = "yes"; then
|
||||||
|
USE_SWAP_16BIT_CSP="-DWEBP_SWAP_16BIT_CSP=1"
|
||||||
|
fi
|
||||||
|
AC_MSG_RESULT(${enable_swap_16bit_csp-no})
|
||||||
|
AC_SUBST(USE_SWAP_16BIT_CSP)
|
||||||
|
|
||||||
|
dnl === If --disable-near-lossless is defined, add -DWEBP_NEAR_LOSSLESS=0
|
||||||
|
|
||||||
|
AC_DEFINE(WEBP_NEAR_LOSSLESS, [1], [Enable near lossless encoding])
|
||||||
|
AC_MSG_CHECKING(if --disable-near-lossless option is specified)
|
||||||
|
AC_ARG_ENABLE([near_lossless],
|
||||||
|
AS_HELP_STRING([--disable-near-lossless],
|
||||||
|
[Disable near lossless encoding]),
|
||||||
|
[], [enable_near_lossless=yes])
|
||||||
|
if test "$enable_near_lossless" = "no"; then
|
||||||
|
AC_DEFINE(WEBP_NEAR_LOSSLESS, [0], [Enable near lossless encoding])
|
||||||
|
AC_MSG_RESULT([yes])
|
||||||
|
else
|
||||||
|
AC_MSG_RESULT([no])
|
||||||
|
fi
|
||||||
|
|
||||||
|
dnl =========================
|
||||||
|
|
||||||
|
dnl Add an empty webp_libname_prefix variable for use in *.pc.in.
|
||||||
|
AC_SUBST([webp_libname_prefix])
|
||||||
|
AC_CONFIG_MACRO_DIR([m4])
|
||||||
|
AC_CONFIG_HEADERS([src/webp/config.h])
|
||||||
|
AC_CONFIG_FILES([Makefile src/Makefile man/Makefile \
|
||||||
|
examples/Makefile extras/Makefile imageio/Makefile \
|
||||||
|
sharpyuv/Makefile sharpyuv/libsharpyuv.pc \
|
||||||
|
src/dec/Makefile src/enc/Makefile src/dsp/Makefile \
|
||||||
|
src/demux/Makefile src/mux/Makefile \
|
||||||
|
src/utils/Makefile \
|
||||||
|
src/libwebp.pc src/libwebpdecoder.pc \
|
||||||
|
src/demux/libwebpdemux.pc src/mux/libwebpmux.pc])
|
||||||
|
|
||||||
|
|
||||||
|
AC_OUTPUT
|
||||||
|
|
||||||
|
AC_MSG_NOTICE([
|
||||||
|
WebP Configuration Summary
|
||||||
|
--------------------------
|
||||||
|
|
||||||
|
Shared libraries: ${enable_shared}
|
||||||
|
Static libraries: ${enable_static}
|
||||||
|
Threading support: ${enable_threading-no}
|
||||||
|
libwebp: yes
|
||||||
|
libwebpdecoder: ${enable_libwebpdecoder-no}
|
||||||
|
libwebpdemux: ${enable_libwebpdemux-no}
|
||||||
|
libwebpmux: ${enable_libwebpmux-no}
|
||||||
|
libwebpextras: ${enable_libwebpextras-no}
|
||||||
|
|
||||||
|
Tools:
|
||||||
|
cwebp : ${enable_libwebpdemux-no}
|
||||||
|
Input format support
|
||||||
|
====================
|
||||||
|
JPEG : ${jpeg_support-no}
|
||||||
|
PNG : ${png_support-no}
|
||||||
|
TIFF : ${tiff_support-no}
|
||||||
|
WIC : ${wic_support-no}
|
||||||
|
dwebp : ${enable_libwebpdemux-no}
|
||||||
|
Output format support
|
||||||
|
=====================
|
||||||
|
PNG : ${png_support-no}
|
||||||
|
WIC : ${wic_support-no}
|
||||||
|
GIF support : ${gif_support-no}
|
||||||
|
anim_diff : ${build_anim_diff-no}
|
||||||
|
gif2webp : ${build_gif2webp-no}
|
||||||
|
img2webp : ${build_img2webp-no}
|
||||||
|
webpmux : ${enable_libwebpmux-no}
|
||||||
|
vwebp : ${build_vwebp-no}
|
||||||
|
webpinfo : ${build_webpinfo-no}
|
||||||
|
SDL support : ${sdl_support-no}
|
||||||
|
vwebp_sdl : ${build_vwebp_sdl-no}
|
||||||
|
])
|
13
doc/TODO
Normal file
13
doc/TODO
Normal file
@ -0,0 +1,13 @@
|
|||||||
|
<louquillio@google.com>, 20111004
|
||||||
|
|
||||||
|
* Determine that normative RFC 2119 terms (MUST, SHOULD, MAY, etc.) are
|
||||||
|
truly intended in all cases where capitalized.
|
||||||
|
|
||||||
|
* Several passages could be made clearer.
|
||||||
|
|
||||||
|
* Overall edit for scope. Portions are phrased as an introduction to
|
||||||
|
the 0.1.3 RIFF container additions, rather than a holistic guide to
|
||||||
|
WebP.
|
||||||
|
|
||||||
|
* To wit, suggest s/[spec|specification]/guide/g . "Spec" can imply a
|
||||||
|
standards track; in any case it's too formal for a work in progress.
|
385
doc/api.md
Normal file
385
doc/api.md
Normal file
@ -0,0 +1,385 @@
|
|||||||
|
# WebP APIs
|
||||||
|
|
||||||
|
## Encoding API
|
||||||
|
|
||||||
|
The main encoding functions are available in the header src/webp/encode.h
|
||||||
|
|
||||||
|
The ready-to-use ones are:
|
||||||
|
|
||||||
|
```c
|
||||||
|
size_t WebPEncodeRGB(const uint8_t* rgb, int width, int height, int stride,
|
||||||
|
float quality_factor, uint8_t** output);
|
||||||
|
size_t WebPEncodeBGR(const uint8_t* bgr, int width, int height, int stride,
|
||||||
|
float quality_factor, uint8_t** output);
|
||||||
|
size_t WebPEncodeRGBA(const uint8_t* rgba, int width, int height, int stride,
|
||||||
|
float quality_factor, uint8_t** output);
|
||||||
|
size_t WebPEncodeBGRA(const uint8_t* bgra, int width, int height, int stride,
|
||||||
|
float quality_factor, uint8_t** output);
|
||||||
|
```
|
||||||
|
|
||||||
|
They will convert raw RGB samples to a WebP data. The only control supplied is
|
||||||
|
the quality factor.
|
||||||
|
|
||||||
|
There are some variants for using the lossless format:
|
||||||
|
|
||||||
|
```c
|
||||||
|
size_t WebPEncodeLosslessRGB(const uint8_t* rgb, int width, int height,
|
||||||
|
int stride, uint8_t** output);
|
||||||
|
size_t WebPEncodeLosslessBGR(const uint8_t* bgr, int width, int height,
|
||||||
|
int stride, uint8_t** output);
|
||||||
|
size_t WebPEncodeLosslessRGBA(const uint8_t* rgba, int width, int height,
|
||||||
|
int stride, uint8_t** output);
|
||||||
|
size_t WebPEncodeLosslessBGRA(const uint8_t* bgra, int width, int height,
|
||||||
|
int stride, uint8_t** output);
|
||||||
|
```
|
||||||
|
|
||||||
|
Of course in this case, no quality factor is needed since the compression occurs
|
||||||
|
without loss of the input values, at the expense of larger output sizes.
|
||||||
|
|
||||||
|
### Advanced encoding API
|
||||||
|
|
||||||
|
A more advanced API is based on the WebPConfig and WebPPicture structures.
|
||||||
|
|
||||||
|
WebPConfig contains the encoding settings and is not tied to a particular
|
||||||
|
picture. WebPPicture contains input data, on which some WebPConfig will be used
|
||||||
|
for compression. The encoding flow looks like:
|
||||||
|
|
||||||
|
```c
|
||||||
|
#include <webp/encode.h>
|
||||||
|
|
||||||
|
// Setup a config, starting form a preset and tuning some additional
|
||||||
|
// parameters
|
||||||
|
WebPConfig config;
|
||||||
|
if (!WebPConfigPreset(&config, WEBP_PRESET_PHOTO, quality_factor)) {
|
||||||
|
return 0; // version error
|
||||||
|
}
|
||||||
|
// ... additional tuning
|
||||||
|
config.sns_strength = 90;
|
||||||
|
config.filter_sharpness = 6;
|
||||||
|
config_error = WebPValidateConfig(&config); // not mandatory, but useful
|
||||||
|
|
||||||
|
// Setup the input data
|
||||||
|
WebPPicture pic;
|
||||||
|
if (!WebPPictureInit(&pic)) {
|
||||||
|
return 0; // version error
|
||||||
|
}
|
||||||
|
pic.width = width;
|
||||||
|
pic.height = height;
|
||||||
|
// allocated picture of dimension width x height
|
||||||
|
if (!WebPPictureAlloc(&pic)) {
|
||||||
|
return 0; // memory error
|
||||||
|
}
|
||||||
|
// at this point, 'pic' has been initialized as a container,
|
||||||
|
// and can receive the Y/U/V samples.
|
||||||
|
// Alternatively, one could use ready-made import functions like
|
||||||
|
// WebPPictureImportRGB(), which will take care of memory allocation.
|
||||||
|
// In any case, past this point, one will have to call
|
||||||
|
// WebPPictureFree(&pic) to reclaim memory.
|
||||||
|
|
||||||
|
// Set up a byte-output write method. WebPMemoryWriter, for instance.
|
||||||
|
WebPMemoryWriter wrt;
|
||||||
|
WebPMemoryWriterInit(&wrt); // initialize 'wrt'
|
||||||
|
|
||||||
|
pic.writer = MyFileWriter;
|
||||||
|
pic.custom_ptr = my_opaque_structure_to_make_MyFileWriter_work;
|
||||||
|
|
||||||
|
// Compress!
|
||||||
|
int ok = WebPEncode(&config, &pic); // ok = 0 => error occurred!
|
||||||
|
WebPPictureFree(&pic); // must be called independently of the 'ok' result.
|
||||||
|
|
||||||
|
// output data should have been handled by the writer at that point.
|
||||||
|
// -> compressed data is the memory buffer described by wrt.mem / wrt.size
|
||||||
|
|
||||||
|
// deallocate the memory used by compressed data
|
||||||
|
WebPMemoryWriterClear(&wrt);
|
||||||
|
```
|
||||||
|
|
||||||
|
## Decoding API
|
||||||
|
|
||||||
|
This is mainly just one function to call:
|
||||||
|
|
||||||
|
```c
|
||||||
|
#include "webp/decode.h"
|
||||||
|
uint8_t* WebPDecodeRGB(const uint8_t* data, size_t data_size,
|
||||||
|
int* width, int* height);
|
||||||
|
```
|
||||||
|
|
||||||
|
Please have a look at the file src/webp/decode.h for the details. There are
|
||||||
|
variants for decoding in BGR/RGBA/ARGB/BGRA order, along with decoding to raw
|
||||||
|
Y'CbCr samples. One can also decode the image directly into a pre-allocated
|
||||||
|
buffer.
|
||||||
|
|
||||||
|
To detect a WebP file and gather the picture's dimensions, the function:
|
||||||
|
|
||||||
|
```c
|
||||||
|
int WebPGetInfo(const uint8_t* data, size_t data_size,
|
||||||
|
int* width, int* height);
|
||||||
|
```
|
||||||
|
|
||||||
|
is supplied. No decoding is involved when using it.
|
||||||
|
|
||||||
|
### Incremental decoding API
|
||||||
|
|
||||||
|
In the case when data is being progressively transmitted, pictures can still be
|
||||||
|
incrementally decoded using a slightly more complicated API. Decoder state is
|
||||||
|
stored into an instance of the WebPIDecoder object. This object can be created
|
||||||
|
with the purpose of decoding either RGB or Y'CbCr samples. For instance:
|
||||||
|
|
||||||
|
```c
|
||||||
|
WebPDecBuffer buffer;
|
||||||
|
WebPInitDecBuffer(&buffer);
|
||||||
|
buffer.colorspace = MODE_BGR;
|
||||||
|
...
|
||||||
|
WebPIDecoder* idec = WebPINewDecoder(&buffer);
|
||||||
|
```
|
||||||
|
|
||||||
|
As data is made progressively available, this incremental-decoder object can be
|
||||||
|
used to decode the picture further. There are two (mutually exclusive) ways to
|
||||||
|
pass freshly arrived data:
|
||||||
|
|
||||||
|
either by appending the fresh bytes:
|
||||||
|
|
||||||
|
```c
|
||||||
|
WebPIAppend(idec, fresh_data, size_of_fresh_data);
|
||||||
|
```
|
||||||
|
|
||||||
|
or by just mentioning the new size of the transmitted data:
|
||||||
|
|
||||||
|
```c
|
||||||
|
WebPIUpdate(idec, buffer, size_of_transmitted_buffer);
|
||||||
|
```
|
||||||
|
|
||||||
|
Note that 'buffer' can be modified between each call to WebPIUpdate, in
|
||||||
|
particular when the buffer is resized to accommodate larger data.
|
||||||
|
|
||||||
|
These functions will return the decoding status: either VP8_STATUS_SUSPENDED if
|
||||||
|
decoding is not finished yet or VP8_STATUS_OK when decoding is done. Any other
|
||||||
|
status is an error condition.
|
||||||
|
|
||||||
|
The 'idec' object must always be released (even upon an error condition) by
|
||||||
|
calling: WebPDelete(idec).
|
||||||
|
|
||||||
|
To retrieve partially decoded picture samples, one must use the corresponding
|
||||||
|
method: WebPIDecGetRGB or WebPIDecGetYUVA. It will return the last displayable
|
||||||
|
pixel row.
|
||||||
|
|
||||||
|
Lastly, note that decoding can also be performed into a pre-allocated pixel
|
||||||
|
buffer. This buffer must be passed when creating a WebPIDecoder, calling
|
||||||
|
WebPINewRGB() or WebPINewYUVA().
|
||||||
|
|
||||||
|
Please have a look at the src/webp/decode.h header for further details.
|
||||||
|
|
||||||
|
### Advanced Decoding API
|
||||||
|
|
||||||
|
WebP decoding supports an advanced API which provides on-the-fly cropping and
|
||||||
|
rescaling, something of great usefulness on memory-constrained environments like
|
||||||
|
mobile phones. Basically, the memory usage will scale with the output's size,
|
||||||
|
not the input's, when one only needs a quick preview or a zoomed in portion of
|
||||||
|
an otherwise too-large picture. Some CPU can be saved too, incidentally.
|
||||||
|
|
||||||
|
```c
|
||||||
|
// A) Init a configuration object
|
||||||
|
WebPDecoderConfig config;
|
||||||
|
CHECK(WebPInitDecoderConfig(&config));
|
||||||
|
|
||||||
|
// B) optional: retrieve the bitstream's features.
|
||||||
|
CHECK(WebPGetFeatures(data, data_size, &config.input) == VP8_STATUS_OK);
|
||||||
|
|
||||||
|
// C) Adjust 'config' options, if needed
|
||||||
|
config.options.no_fancy_upsampling = 1;
|
||||||
|
config.options.use_scaling = 1;
|
||||||
|
config.options.scaled_width = scaledWidth();
|
||||||
|
config.options.scaled_height = scaledHeight();
|
||||||
|
// etc.
|
||||||
|
|
||||||
|
// D) Specify 'config' output options for specifying output colorspace.
|
||||||
|
// Optionally the external image decode buffer can also be specified.
|
||||||
|
config.output.colorspace = MODE_BGRA;
|
||||||
|
// Optionally, the config.output can be pointed to an external buffer as
|
||||||
|
// well for decoding the image. This externally supplied memory buffer
|
||||||
|
// should be big enough to store the decoded picture.
|
||||||
|
config.output.u.RGBA.rgba = (uint8_t*) memory_buffer;
|
||||||
|
config.output.u.RGBA.stride = scanline_stride;
|
||||||
|
config.output.u.RGBA.size = total_size_of_the_memory_buffer;
|
||||||
|
config.output.is_external_memory = 1;
|
||||||
|
|
||||||
|
// E) Decode the WebP image. There are two variants w.r.t decoding image.
|
||||||
|
// The first one (E.1) decodes the full image and the second one (E.2) is
|
||||||
|
// used to incrementally decode the image using small input buffers.
|
||||||
|
// Any one of these steps can be used to decode the WebP image.
|
||||||
|
|
||||||
|
// E.1) Decode full image.
|
||||||
|
CHECK(WebPDecode(data, data_size, &config) == VP8_STATUS_OK);
|
||||||
|
|
||||||
|
// E.2) Decode image incrementally.
|
||||||
|
WebPIDecoder* const idec = WebPIDecode(NULL, NULL, &config);
|
||||||
|
CHECK(idec != NULL);
|
||||||
|
while (bytes_remaining > 0) {
|
||||||
|
VP8StatusCode status = WebPIAppend(idec, input, bytes_read);
|
||||||
|
if (status == VP8_STATUS_OK || status == VP8_STATUS_SUSPENDED) {
|
||||||
|
bytes_remaining -= bytes_read;
|
||||||
|
} else {
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
WebPIDelete(idec);
|
||||||
|
|
||||||
|
// F) Decoded image is now in config.output (and config.output.u.RGBA).
|
||||||
|
// It can be saved, displayed or otherwise processed.
|
||||||
|
|
||||||
|
// G) Reclaim memory allocated in config's object. It's safe to call
|
||||||
|
// this function even if the memory is external and wasn't allocated
|
||||||
|
// by WebPDecode().
|
||||||
|
WebPFreeDecBuffer(&config.output);
|
||||||
|
```
|
||||||
|
|
||||||
|
## WebP Mux
|
||||||
|
|
||||||
|
WebPMux is a set of two libraries 'Mux' and 'Demux' for creation, extraction and
|
||||||
|
manipulation of an extended format WebP file, which can have features like color
|
||||||
|
profile, metadata and animation. Reference command-line tools `webpmux` and
|
||||||
|
`vwebp` as well as the WebP container specification
|
||||||
|
'doc/webp-container-spec.txt' are also provided in this package, see the
|
||||||
|
[tools documentation](tools.md).
|
||||||
|
|
||||||
|
### Mux API
|
||||||
|
|
||||||
|
The Mux API contains methods for adding data to and reading data from WebP
|
||||||
|
files. This API currently supports XMP/EXIF metadata, ICC profile and animation.
|
||||||
|
Other features may be added in subsequent releases.
|
||||||
|
|
||||||
|
Example#1 (pseudo code): Creating a WebPMux object with image data, color
|
||||||
|
profile and XMP metadata.
|
||||||
|
|
||||||
|
```c
|
||||||
|
int copy_data = 0;
|
||||||
|
WebPMux* mux = WebPMuxNew();
|
||||||
|
// ... (Prepare image data).
|
||||||
|
WebPMuxSetImage(mux, &image, copy_data);
|
||||||
|
// ... (Prepare ICC profile data).
|
||||||
|
WebPMuxSetChunk(mux, "ICCP", &icc_profile, copy_data);
|
||||||
|
// ... (Prepare XMP metadata).
|
||||||
|
WebPMuxSetChunk(mux, "XMP ", &xmp, copy_data);
|
||||||
|
// Get data from mux in WebP RIFF format.
|
||||||
|
WebPMuxAssemble(mux, &output_data);
|
||||||
|
WebPMuxDelete(mux);
|
||||||
|
// ... (Consume output_data; e.g. write output_data.bytes to file).
|
||||||
|
WebPDataClear(&output_data);
|
||||||
|
```
|
||||||
|
|
||||||
|
Example#2 (pseudo code): Get image and color profile data from a WebP file.
|
||||||
|
|
||||||
|
```c
|
||||||
|
int copy_data = 0;
|
||||||
|
// ... (Read data from file).
|
||||||
|
WebPMux* mux = WebPMuxCreate(&data, copy_data);
|
||||||
|
WebPMuxGetFrame(mux, 1, &image);
|
||||||
|
// ... (Consume image; e.g. call WebPDecode() to decode the data).
|
||||||
|
WebPMuxGetChunk(mux, "ICCP", &icc_profile);
|
||||||
|
// ... (Consume icc_profile).
|
||||||
|
WebPMuxDelete(mux);
|
||||||
|
free(data);
|
||||||
|
```
|
||||||
|
|
||||||
|
For a detailed Mux API reference, please refer to the header file
|
||||||
|
(src/webp/mux.h).
|
||||||
|
|
||||||
|
### Demux API
|
||||||
|
|
||||||
|
The Demux API enables extraction of images and extended format data from WebP
|
||||||
|
files. This API currently supports reading of XMP/EXIF metadata, ICC profile and
|
||||||
|
animated images. Other features may be added in subsequent releases.
|
||||||
|
|
||||||
|
Code example: Demuxing WebP data to extract all the frames, ICC profile and
|
||||||
|
EXIF/XMP metadata.
|
||||||
|
|
||||||
|
```c
|
||||||
|
WebPDemuxer* demux = WebPDemux(&webp_data);
|
||||||
|
uint32_t width = WebPDemuxGetI(demux, WEBP_FF_CANVAS_WIDTH);
|
||||||
|
uint32_t height = WebPDemuxGetI(demux, WEBP_FF_CANVAS_HEIGHT);
|
||||||
|
// ... (Get information about the features present in the WebP file).
|
||||||
|
uint32_t flags = WebPDemuxGetI(demux, WEBP_FF_FORMAT_FLAGS);
|
||||||
|
|
||||||
|
// ... (Iterate over all frames).
|
||||||
|
WebPIterator iter;
|
||||||
|
if (WebPDemuxGetFrame(demux, 1, &iter)) {
|
||||||
|
do {
|
||||||
|
// ... (Consume 'iter'; e.g. Decode 'iter.fragment' with WebPDecode(),
|
||||||
|
// ... and get other frame properties like width, height, offsets etc.
|
||||||
|
// ... see 'struct WebPIterator' below for more info).
|
||||||
|
} while (WebPDemuxNextFrame(&iter));
|
||||||
|
WebPDemuxReleaseIterator(&iter);
|
||||||
|
}
|
||||||
|
|
||||||
|
// ... (Extract metadata).
|
||||||
|
WebPChunkIterator chunk_iter;
|
||||||
|
if (flags & ICCP_FLAG) WebPDemuxGetChunk(demux, "ICCP", 1, &chunk_iter);
|
||||||
|
// ... (Consume the ICC profile in 'chunk_iter.chunk').
|
||||||
|
WebPDemuxReleaseChunkIterator(&chunk_iter);
|
||||||
|
if (flags & EXIF_FLAG) WebPDemuxGetChunk(demux, "EXIF", 1, &chunk_iter);
|
||||||
|
// ... (Consume the EXIF metadata in 'chunk_iter.chunk').
|
||||||
|
WebPDemuxReleaseChunkIterator(&chunk_iter);
|
||||||
|
if (flags & XMP_FLAG) WebPDemuxGetChunk(demux, "XMP ", 1, &chunk_iter);
|
||||||
|
// ... (Consume the XMP metadata in 'chunk_iter.chunk').
|
||||||
|
WebPDemuxReleaseChunkIterator(&chunk_iter);
|
||||||
|
WebPDemuxDelete(demux);
|
||||||
|
```
|
||||||
|
|
||||||
|
For a detailed Demux API reference, please refer to the header file
|
||||||
|
(src/webp/demux.h).
|
||||||
|
|
||||||
|
## AnimEncoder API
|
||||||
|
|
||||||
|
The AnimEncoder API can be used to create animated WebP images.
|
||||||
|
|
||||||
|
Code example:
|
||||||
|
|
||||||
|
```c
|
||||||
|
WebPAnimEncoderOptions enc_options;
|
||||||
|
WebPAnimEncoderOptionsInit(&enc_options);
|
||||||
|
// ... (Tune 'enc_options' as needed).
|
||||||
|
WebPAnimEncoder* enc = WebPAnimEncoderNew(width, height, &enc_options);
|
||||||
|
while(<there are more frames>) {
|
||||||
|
WebPConfig config;
|
||||||
|
WebPConfigInit(&config);
|
||||||
|
// ... (Tune 'config' as needed).
|
||||||
|
WebPAnimEncoderAdd(enc, frame, duration, &config);
|
||||||
|
}
|
||||||
|
WebPAnimEncoderAssemble(enc, webp_data);
|
||||||
|
WebPAnimEncoderDelete(enc);
|
||||||
|
// ... (Write the 'webp_data' to a file, or re-mux it further).
|
||||||
|
```
|
||||||
|
|
||||||
|
For a detailed AnimEncoder API reference, please refer to the header file
|
||||||
|
(src/webp/mux.h).
|
||||||
|
|
||||||
|
## AnimDecoder API
|
||||||
|
|
||||||
|
This AnimDecoder API allows decoding (possibly) animated WebP images.
|
||||||
|
|
||||||
|
Code Example:
|
||||||
|
|
||||||
|
```c
|
||||||
|
WebPAnimDecoderOptions dec_options;
|
||||||
|
WebPAnimDecoderOptionsInit(&dec_options);
|
||||||
|
// Tune 'dec_options' as needed.
|
||||||
|
WebPAnimDecoder* dec = WebPAnimDecoderNew(webp_data, &dec_options);
|
||||||
|
WebPAnimInfo anim_info;
|
||||||
|
WebPAnimDecoderGetInfo(dec, &anim_info);
|
||||||
|
for (uint32_t i = 0; i < anim_info.loop_count; ++i) {
|
||||||
|
while (WebPAnimDecoderHasMoreFrames(dec)) {
|
||||||
|
uint8_t* buf;
|
||||||
|
int timestamp;
|
||||||
|
WebPAnimDecoderGetNext(dec, &buf, ×tamp);
|
||||||
|
// ... (Render 'buf' based on 'timestamp').
|
||||||
|
// ... (Do NOT free 'buf', as it is owned by 'dec').
|
||||||
|
}
|
||||||
|
WebPAnimDecoderReset(dec);
|
||||||
|
}
|
||||||
|
const WebPDemuxer* demuxer = WebPAnimDecoderGetDemuxer(dec);
|
||||||
|
// ... (Do something using 'demuxer'; e.g. get EXIF/XMP/ICC data).
|
||||||
|
WebPAnimDecoderDelete(dec);
|
||||||
|
```
|
||||||
|
|
||||||
|
For a detailed AnimDecoder API reference, please refer to the header file
|
||||||
|
(src/webp/demux.h).
|
213
doc/building.md
Normal file
213
doc/building.md
Normal file
@ -0,0 +1,213 @@
|
|||||||
|
# Building
|
||||||
|
|
||||||
|
## Windows build
|
||||||
|
|
||||||
|
By running:
|
||||||
|
|
||||||
|
```batch
|
||||||
|
nmake /f Makefile.vc CFG=release-static RTLIBCFG=static OBJDIR=output
|
||||||
|
```
|
||||||
|
|
||||||
|
the directory `output\release-static\(x64|x86)\bin` will contain the tools
|
||||||
|
cwebp.exe and dwebp.exe. The directory `output\release-static\(x64|x86)\lib`
|
||||||
|
will contain the libwebp static library. The target architecture (x86/x64) is
|
||||||
|
detected by Makefile.vc from the Visual Studio compiler (cl.exe) available in
|
||||||
|
the system path.
|
||||||
|
|
||||||
|
## Unix build using makefile.unix
|
||||||
|
|
||||||
|
On platforms with GNU tools installed (gcc and make), running
|
||||||
|
|
||||||
|
```shell
|
||||||
|
make -f makefile.unix
|
||||||
|
```
|
||||||
|
|
||||||
|
will build the binaries examples/cwebp and examples/dwebp, along with the static
|
||||||
|
library src/libwebp.a. No system-wide installation is supplied, as this is a
|
||||||
|
simple alternative to the full installation system based on the autoconf tools
|
||||||
|
(see below). Please refer to makefile.unix for additional details and
|
||||||
|
customizations.
|
||||||
|
|
||||||
|
## Using autoconf tools
|
||||||
|
|
||||||
|
Prerequisites: a compiler (e.g., gcc), make, autoconf, automake, libtool.
|
||||||
|
|
||||||
|
On a Debian-like system the following should install everything you need for a
|
||||||
|
minimal build:
|
||||||
|
|
||||||
|
```shell
|
||||||
|
$ sudo apt-get install gcc make autoconf automake libtool
|
||||||
|
```
|
||||||
|
|
||||||
|
When building from git sources, you will need to run autogen.sh to generate the
|
||||||
|
configure script.
|
||||||
|
|
||||||
|
```shell
|
||||||
|
./configure
|
||||||
|
make
|
||||||
|
make install
|
||||||
|
```
|
||||||
|
|
||||||
|
should be all you need to have the following files
|
||||||
|
|
||||||
|
```
|
||||||
|
/usr/local/include/webp/decode.h
|
||||||
|
/usr/local/include/webp/encode.h
|
||||||
|
/usr/local/include/webp/types.h
|
||||||
|
/usr/local/lib/libwebp.*
|
||||||
|
/usr/local/bin/cwebp
|
||||||
|
/usr/local/bin/dwebp
|
||||||
|
```
|
||||||
|
|
||||||
|
installed.
|
||||||
|
|
||||||
|
Note: A decode-only library, libwebpdecoder, is available using the
|
||||||
|
`--enable-libwebpdecoder` flag. The encode library is built separately and can
|
||||||
|
be installed independently using a minor modification in the corresponding
|
||||||
|
Makefile.am configure files (see comments there). See `./configure --help` for
|
||||||
|
more options.
|
||||||
|
|
||||||
|
## Building for MIPS Linux
|
||||||
|
|
||||||
|
MIPS Linux toolchain stable available releases can be found at:
|
||||||
|
https://community.imgtec.com/developers/mips/tools/codescape-mips-sdk/available-releases/
|
||||||
|
|
||||||
|
```shell
|
||||||
|
# Add toolchain to PATH
|
||||||
|
export PATH=$PATH:/path/to/toolchain/bin
|
||||||
|
|
||||||
|
# 32-bit build for mips32r5 (p5600)
|
||||||
|
HOST=mips-mti-linux-gnu
|
||||||
|
MIPS_CFLAGS="-O3 -mips32r5 -mabi=32 -mtune=p5600 -mmsa -mfp64 \
|
||||||
|
-msched-weight -mload-store-pairs -fPIE"
|
||||||
|
MIPS_LDFLAGS="-mips32r5 -mabi=32 -mmsa -mfp64 -pie"
|
||||||
|
|
||||||
|
# 64-bit build for mips64r6 (i6400)
|
||||||
|
HOST=mips-img-linux-gnu
|
||||||
|
MIPS_CFLAGS="-O3 -mips64r6 -mabi=64 -mtune=i6400 -mmsa -mfp64 \
|
||||||
|
-msched-weight -mload-store-pairs -fPIE"
|
||||||
|
MIPS_LDFLAGS="-mips64r6 -mabi=64 -mmsa -mfp64 -pie"
|
||||||
|
|
||||||
|
./configure --host=${HOST} --build=`config.guess` \
|
||||||
|
CC="${HOST}-gcc -EL" \
|
||||||
|
CFLAGS="$MIPS_CFLAGS" \
|
||||||
|
LDFLAGS="$MIPS_LDFLAGS"
|
||||||
|
make
|
||||||
|
make install
|
||||||
|
```
|
||||||
|
|
||||||
|
## CMake
|
||||||
|
|
||||||
|
With CMake, you can compile libwebp, cwebp, dwebp, gif2webp, img2webp, webpinfo
|
||||||
|
and the JS bindings.
|
||||||
|
|
||||||
|
Prerequisites: a compiler (e.g., gcc with autotools) and CMake.
|
||||||
|
|
||||||
|
On a Debian-like system the following should install everything you need for a
|
||||||
|
minimal build:
|
||||||
|
|
||||||
|
```shell
|
||||||
|
$ sudo apt-get install build-essential cmake
|
||||||
|
```
|
||||||
|
|
||||||
|
When building from git sources, you will need to run cmake to generate the
|
||||||
|
makefiles.
|
||||||
|
|
||||||
|
```shell
|
||||||
|
mkdir build && cd build && cmake ../
|
||||||
|
make
|
||||||
|
make install
|
||||||
|
```
|
||||||
|
|
||||||
|
If you also want any of the executables, you will need to enable them through
|
||||||
|
CMake, e.g.:
|
||||||
|
|
||||||
|
```shell
|
||||||
|
cmake -DWEBP_BUILD_CWEBP=ON -DWEBP_BUILD_DWEBP=ON ../
|
||||||
|
```
|
||||||
|
|
||||||
|
or through your favorite interface (like ccmake or cmake-qt-gui).
|
||||||
|
|
||||||
|
Use option `-DWEBP_UNICODE=ON` for Unicode support on Windows (with chcp 65001).
|
||||||
|
|
||||||
|
Finally, once installed, you can also use WebP in your CMake project by doing:
|
||||||
|
|
||||||
|
```cmake
|
||||||
|
find_package(WebP)
|
||||||
|
```
|
||||||
|
|
||||||
|
which will define the CMake variables WebP_INCLUDE_DIRS and WebP_LIBRARIES.
|
||||||
|
|
||||||
|
## Gradle
|
||||||
|
|
||||||
|
The support for Gradle is minimal: it only helps you compile libwebp, cwebp and
|
||||||
|
dwebp and webpmux_example.
|
||||||
|
|
||||||
|
Prerequisites: a compiler (e.g., gcc with autotools) and gradle.
|
||||||
|
|
||||||
|
On a Debian-like system the following should install everything you need for a
|
||||||
|
minimal build:
|
||||||
|
|
||||||
|
```shell
|
||||||
|
$ sudo apt-get install build-essential gradle
|
||||||
|
```
|
||||||
|
|
||||||
|
When building from git sources, you will need to run the Gradle wrapper with the
|
||||||
|
appropriate target, e.g. :
|
||||||
|
|
||||||
|
```shell
|
||||||
|
./gradlew buildAllExecutables
|
||||||
|
```
|
||||||
|
|
||||||
|
## SWIG bindings
|
||||||
|
|
||||||
|
To generate language bindings from swig/libwebp.swig at least swig-1.3
|
||||||
|
(http://www.swig.org) is required.
|
||||||
|
|
||||||
|
Currently the following functions are mapped:
|
||||||
|
|
||||||
|
Decode:
|
||||||
|
|
||||||
|
```
|
||||||
|
WebPGetDecoderVersion
|
||||||
|
WebPGetInfo
|
||||||
|
WebPDecodeRGBA
|
||||||
|
WebPDecodeARGB
|
||||||
|
WebPDecodeBGRA
|
||||||
|
WebPDecodeBGR
|
||||||
|
WebPDecodeRGB
|
||||||
|
```
|
||||||
|
|
||||||
|
Encode:
|
||||||
|
|
||||||
|
```
|
||||||
|
WebPGetEncoderVersion
|
||||||
|
WebPEncodeRGBA
|
||||||
|
WebPEncodeBGRA
|
||||||
|
WebPEncodeRGB
|
||||||
|
WebPEncodeBGR
|
||||||
|
WebPEncodeLosslessRGBA
|
||||||
|
WebPEncodeLosslessBGRA
|
||||||
|
WebPEncodeLosslessRGB
|
||||||
|
WebPEncodeLosslessBGR
|
||||||
|
```
|
||||||
|
|
||||||
|
See also the [swig documentation](../swig/README.md) for more detailed build
|
||||||
|
instructions and usage examples.
|
||||||
|
|
||||||
|
### Java bindings
|
||||||
|
|
||||||
|
To build the swig-generated JNI wrapper code at least JDK-1.5 (or equivalent) is
|
||||||
|
necessary for enum support. The output is intended to be a shared object / DLL
|
||||||
|
that can be loaded via `System.loadLibrary("webp_jni")`.
|
||||||
|
|
||||||
|
### Python bindings
|
||||||
|
|
||||||
|
To build the swig-generated Python extension code at least Python 2.6 is
|
||||||
|
required. Python < 2.6 may build with some minor changes to libwebp.swig or the
|
||||||
|
generated code, but is untested.
|
||||||
|
|
||||||
|
## Javascript decoder
|
||||||
|
|
||||||
|
Libwebp can be compiled into a JavaScript decoder using Emscripten and CMake.
|
||||||
|
See the [corresponding documentation](../README.md)
|
26
doc/specs_generation.md
Normal file
26
doc/specs_generation.md
Normal file
@ -0,0 +1,26 @@
|
|||||||
|
# Generate libwebp Container Spec Docs from Text Source
|
||||||
|
|
||||||
|
HTML generation requires [kramdown](https://kramdown.gettalong.org/), easily
|
||||||
|
installed as a [rubygem](https://rubygems.org/). Rubygems installation should
|
||||||
|
satisfy dependencies automatically.
|
||||||
|
|
||||||
|
HTML generation can then be done from the project root:
|
||||||
|
|
||||||
|
```shell
|
||||||
|
$ kramdown doc/webp-container-spec.txt --template doc/template.html > \
|
||||||
|
doc/output/webp-container-spec.html
|
||||||
|
```
|
||||||
|
|
||||||
|
kramdown can optionally syntax highlight code blocks, using
|
||||||
|
[CodeRay](https://github.com/rubychan/coderay), a dependency of kramdown that
|
||||||
|
rubygems will install automatically. The following will apply inline CSS
|
||||||
|
styling; an external stylesheet is not needed.
|
||||||
|
|
||||||
|
```shell
|
||||||
|
$ kramdown doc/webp-lossless-bitstream-spec.txt --template \
|
||||||
|
doc/template.html --coderay-css style --coderay-line-numbers ' ' \
|
||||||
|
--coderay-default-lang c > \
|
||||||
|
doc/output/webp-lossless-bitstream-spec.html
|
||||||
|
```
|
||||||
|
|
||||||
|
Optimally, use kramdown 0.13.7 or newer if syntax highlighting desired.
|
94
doc/template.html
Normal file
94
doc/template.html
Normal file
@ -0,0 +1,94 @@
|
|||||||
|
<!DOCTYPE html>
|
||||||
|
<html lang="en">
|
||||||
|
<head>
|
||||||
|
<meta charset="utf-8">
|
||||||
|
<title>WebP Container Specification</title>
|
||||||
|
<meta name="generator" content="kramdown <%= ::Kramdown::VERSION %>" />
|
||||||
|
<style type="text/css">
|
||||||
|
body {
|
||||||
|
color: #000;
|
||||||
|
background-color: #fff;
|
||||||
|
margin: 10%;
|
||||||
|
font-family: "Liberation Sans", "DejaVu Sans", "Bitstream Vera Sans", Arial, sans-serif;
|
||||||
|
line-height: 1.4;
|
||||||
|
}
|
||||||
|
h2 {
|
||||||
|
border-bottom: 1px solid #ccc;
|
||||||
|
padding-bottom: 0;
|
||||||
|
}
|
||||||
|
table {
|
||||||
|
border-collapse: collapse;
|
||||||
|
}
|
||||||
|
th, td {
|
||||||
|
border: 1px solid #999;
|
||||||
|
padding: .5em .7em;;
|
||||||
|
}
|
||||||
|
th {
|
||||||
|
color: #fff;
|
||||||
|
background-color: #000;
|
||||||
|
}
|
||||||
|
td {
|
||||||
|
}
|
||||||
|
hr {
|
||||||
|
}
|
||||||
|
code {
|
||||||
|
color: #000;
|
||||||
|
background-color: #f7f7f7;
|
||||||
|
padding: 0 3px;
|
||||||
|
font-family: "Liberation Mono", "DejaVu Sans Mono", "Bitstream Vera Sans Mono", Consolata, monospace;
|
||||||
|
}
|
||||||
|
pre {
|
||||||
|
background-color: #f7f7f7;
|
||||||
|
padding: 1em;
|
||||||
|
border: 1px solid #ccc;
|
||||||
|
width: 42em;
|
||||||
|
overflow: auto;
|
||||||
|
font-family: "Liberation Mono", "DejaVu Sans Mono", "Bitstream Vera Sans Mono", Consolata, monospace;
|
||||||
|
}
|
||||||
|
pre code {
|
||||||
|
background-color: #f7f7f7;
|
||||||
|
padding: 0; /* Only want padding on inline code, not blocks */
|
||||||
|
}
|
||||||
|
pre.terminal {
|
||||||
|
color: #fff;
|
||||||
|
background-color: #000;
|
||||||
|
border: 1px solid #ccc;
|
||||||
|
max-height: 30em;
|
||||||
|
}
|
||||||
|
pre.terminal code {
|
||||||
|
color: #fff;
|
||||||
|
background-color: #000;
|
||||||
|
font-size: smaller;
|
||||||
|
}
|
||||||
|
#markdown-toc ul {
|
||||||
|
list-style-type: disc;
|
||||||
|
}
|
||||||
|
ul#markdown-toc {
|
||||||
|
margin-top: -1em;
|
||||||
|
visibility: hidden;
|
||||||
|
-webkit-padding-start: 0;
|
||||||
|
}
|
||||||
|
ul#markdown-toc ul {
|
||||||
|
visibility: visible;
|
||||||
|
}
|
||||||
|
ul#markdown-toc ul ul{
|
||||||
|
visibility: visible;
|
||||||
|
}
|
||||||
|
ul#markdown-toc + hr {
|
||||||
|
margin-bottom: 4em;
|
||||||
|
}
|
||||||
|
ol ol { /* Format nested ordered lists */
|
||||||
|
list-style-type: lower-alpha;
|
||||||
|
}
|
||||||
|
dt {
|
||||||
|
font-style: italic;
|
||||||
|
font-weight: bold;
|
||||||
|
}
|
||||||
|
.caption {
|
||||||
|
}
|
||||||
|
</style>
|
||||||
|
</head>
|
||||||
|
<body>
|
||||||
|
<%= @body %>
|
||||||
|
</body>
|
||||||
|
</html>
|
516
doc/tools.md
Normal file
516
doc/tools.md
Normal file
@ -0,0 +1,516 @@
|
|||||||
|
# WebP tools
|
||||||
|
|
||||||
|
## Encoding tool
|
||||||
|
|
||||||
|
The examples/ directory contains tools for encoding (cwebp) and decoding (dwebp)
|
||||||
|
images.
|
||||||
|
|
||||||
|
The easiest use should look like:
|
||||||
|
|
||||||
|
```shell
|
||||||
|
cwebp input.png -q 80 -o output.webp
|
||||||
|
```
|
||||||
|
|
||||||
|
which will convert the input file to a WebP file using a quality factor of 80 on
|
||||||
|
a 0->100 scale (0 being the lowest quality, 100 being the best. Default value is
|
||||||
|
75).
|
||||||
|
|
||||||
|
You might want to try the `-lossless` flag too, which will compress the source
|
||||||
|
(in RGBA format) without any loss. The `-q` quality parameter will in this case
|
||||||
|
control the amount of processing time spent trying to make the output file as
|
||||||
|
small as possible.
|
||||||
|
|
||||||
|
A longer list of options is available using the `-longhelp` command line flag:
|
||||||
|
|
||||||
|
```shell
|
||||||
|
> cwebp -longhelp
|
||||||
|
Usage:
|
||||||
|
cwebp [-preset <...>] [options] in_file [-o out_file]
|
||||||
|
```
|
||||||
|
|
||||||
|
If input size (-s) for an image is not specified, it is assumed to be a PNG,
|
||||||
|
JPEG, TIFF or WebP file. Note: Animated PNG and WebP files are not supported.
|
||||||
|
|
||||||
|
Options:
|
||||||
|
|
||||||
|
```
|
||||||
|
-h / -help ............. short help
|
||||||
|
-H / -longhelp ......... long help
|
||||||
|
-q <float> ............. quality factor (0:small..100:big), default=75
|
||||||
|
-alpha_q <int> ......... transparency-compression quality (0..100),
|
||||||
|
default=100
|
||||||
|
-preset <string> ....... preset setting, one of:
|
||||||
|
default, photo, picture,
|
||||||
|
drawing, icon, text
|
||||||
|
-preset must come first, as it overwrites other parameters
|
||||||
|
-z <int> ............... activates lossless preset with given
|
||||||
|
level in [0:fast, ..., 9:slowest]
|
||||||
|
|
||||||
|
-m <int> ............... compression method (0=fast, 6=slowest), default=4
|
||||||
|
-segments <int> ........ number of segments to use (1..4), default=4
|
||||||
|
-size <int> ............ target size (in bytes)
|
||||||
|
-psnr <float> .......... target PSNR (in dB. typically: 42)
|
||||||
|
|
||||||
|
-s <int> <int> ......... input size (width x height) for YUV
|
||||||
|
-sns <int> ............. spatial noise shaping (0:off, 100:max), default=50
|
||||||
|
-f <int> ............... filter strength (0=off..100), default=60
|
||||||
|
-sharpness <int> ....... filter sharpness (0:most .. 7:least sharp), default=0
|
||||||
|
-strong ................ use strong filter instead of simple (default)
|
||||||
|
-nostrong .............. use simple filter instead of strong
|
||||||
|
-sharp_yuv ............. use sharper (and slower) RGB->YUV conversion
|
||||||
|
-partition_limit <int> . limit quality to fit the 512k limit on
|
||||||
|
the first partition (0=no degradation ... 100=full)
|
||||||
|
-pass <int> ............ analysis pass number (1..10)
|
||||||
|
-qrange <min> <max> .... specifies the permissible quality range
|
||||||
|
(default: 0 100)
|
||||||
|
-crop <x> <y> <w> <h> .. crop picture with the given rectangle
|
||||||
|
-resize <w> <h> ........ resize picture (*after* any cropping)
|
||||||
|
-mt .................... use multi-threading if available
|
||||||
|
-low_memory ............ reduce memory usage (slower encoding)
|
||||||
|
-map <int> ............. print map of extra info
|
||||||
|
-print_psnr ............ prints averaged PSNR distortion
|
||||||
|
-print_ssim ............ prints averaged SSIM distortion
|
||||||
|
-print_lsim ............ prints local-similarity distortion
|
||||||
|
-d <file.pgm> .......... dump the compressed output (PGM file)
|
||||||
|
-alpha_method <int> .... transparency-compression method (0..1), default=1
|
||||||
|
-alpha_filter <string> . predictive filtering for alpha plane,
|
||||||
|
one of: none, fast (default) or best
|
||||||
|
-exact ................. preserve RGB values in transparent area, default=off
|
||||||
|
-blend_alpha <hex> ..... blend colors against background color
|
||||||
|
expressed as RGB values written in
|
||||||
|
hexadecimal, e.g. 0xc0e0d0 for red=0xc0
|
||||||
|
green=0xe0 and blue=0xd0
|
||||||
|
-noalpha ............... discard any transparency information
|
||||||
|
-lossless .............. encode image losslessly, default=off
|
||||||
|
-near_lossless <int> ... use near-lossless image preprocessing
|
||||||
|
(0..100=off), default=100
|
||||||
|
-hint <string> ......... specify image characteristics hint,
|
||||||
|
one of: photo, picture or graph
|
||||||
|
|
||||||
|
-metadata <string> ..... comma separated list of metadata to
|
||||||
|
copy from the input to the output if present.
|
||||||
|
Valid values: all, none (default), exif, icc, xmp
|
||||||
|
|
||||||
|
-short ................. condense printed message
|
||||||
|
-quiet ................. don't print anything
|
||||||
|
-version ............... print version number and exit
|
||||||
|
-noasm ................. disable all assembly optimizations
|
||||||
|
-v ..................... verbose, e.g. print encoding/decoding times
|
||||||
|
-progress .............. report encoding progress
|
||||||
|
```
|
||||||
|
|
||||||
|
Experimental Options:
|
||||||
|
|
||||||
|
```
|
||||||
|
-jpeg_like ............. roughly match expected JPEG size
|
||||||
|
-af .................... auto-adjust filter strength
|
||||||
|
-pre <int> ............. pre-processing filter
|
||||||
|
```
|
||||||
|
|
||||||
|
The main options you might want to try in order to further tune the visual
|
||||||
|
quality are:
|
||||||
|
|
||||||
|
-preset -sns -f -m
|
||||||
|
|
||||||
|
Namely:
|
||||||
|
|
||||||
|
* `preset` will set up a default encoding configuration targeting a particular
|
||||||
|
type of input. It should appear first in the list of options, so that
|
||||||
|
subsequent options can take effect on top of this preset. Default value is
|
||||||
|
'default'.
|
||||||
|
* `sns` will progressively turn on (when going from 0 to 100) some additional
|
||||||
|
visual optimizations (like: segmentation map re-enforcement). This option
|
||||||
|
will balance the bit allocation differently. It tries to take bits from the
|
||||||
|
"easy" parts of the picture and use them in the "difficult" ones instead.
|
||||||
|
Usually, raising the sns value (at fixed -q value) leads to larger files,
|
||||||
|
but with better quality. Typical value is around '75'.
|
||||||
|
* `f` option directly links to the filtering strength used by the codec's
|
||||||
|
in-loop processing. The higher the value, the smoother the highly-compressed
|
||||||
|
area will look. This is particularly useful when aiming at very small files.
|
||||||
|
Typical values are around 20-30. Note that using the option
|
||||||
|
-strong/-nostrong will change the type of filtering. Use "-f 0" to turn
|
||||||
|
filtering off.
|
||||||
|
* `m` controls the trade-off between encoding speed and quality. Default is 4.
|
||||||
|
You can try -m 5 or -m 6 to explore more (time-consuming) encoding
|
||||||
|
possibilities. A lower value will result in faster encoding at the expense
|
||||||
|
of quality.
|
||||||
|
|
||||||
|
## Decoding tool
|
||||||
|
|
||||||
|
There is a decoding sample in examples/dwebp.c which will take a .webp file and
|
||||||
|
decode it to a PNG image file (amongst other formats). This is simply to
|
||||||
|
demonstrate the use of the API. You can verify the file test.webp decodes to
|
||||||
|
exactly the same as test_ref.ppm by using:
|
||||||
|
|
||||||
|
```shell
|
||||||
|
cd examples
|
||||||
|
./dwebp test.webp -ppm -o test.ppm
|
||||||
|
diff test.ppm test_ref.ppm
|
||||||
|
```
|
||||||
|
|
||||||
|
The full list of options is available using -h:
|
||||||
|
|
||||||
|
```shell
|
||||||
|
> dwebp -h
|
||||||
|
Usage: dwebp in_file [options] [-o out_file]
|
||||||
|
```
|
||||||
|
|
||||||
|
Decodes the WebP image file to PNG format [Default]. Note: Animated WebP files
|
||||||
|
are not supported.
|
||||||
|
|
||||||
|
Use following options to convert into alternate image formats:
|
||||||
|
|
||||||
|
```
|
||||||
|
-pam ......... save the raw RGBA samples as a color PAM
|
||||||
|
-ppm ......... save the raw RGB samples as a color PPM
|
||||||
|
-bmp ......... save as uncompressed BMP format
|
||||||
|
-tiff ........ save as uncompressed TIFF format
|
||||||
|
-pgm ......... save the raw YUV samples as a grayscale PGM
|
||||||
|
file with IMC4 layout
|
||||||
|
-yuv ......... save the raw YUV samples in flat layout
|
||||||
|
```
|
||||||
|
|
||||||
|
Other options are:
|
||||||
|
|
||||||
|
```
|
||||||
|
-version ..... print version number and exit
|
||||||
|
-nofancy ..... don't use the fancy YUV420 upscaler
|
||||||
|
-nofilter .... disable in-loop filtering
|
||||||
|
-nodither .... disable dithering
|
||||||
|
-dither <d> .. dithering strength (in 0..100)
|
||||||
|
-alpha_dither use alpha-plane dithering if needed
|
||||||
|
-mt .......... use multi-threading
|
||||||
|
-crop <x> <y> <w> <h> ... crop output with the given rectangle
|
||||||
|
-resize <w> <h> ......... resize output (*after* any cropping)
|
||||||
|
-flip ........ flip the output vertically
|
||||||
|
-alpha ....... only save the alpha plane
|
||||||
|
-incremental . use incremental decoding (useful for tests)
|
||||||
|
-h ........... this help message
|
||||||
|
-v ........... verbose (e.g. print encoding/decoding times)
|
||||||
|
-quiet ....... quiet mode, don't print anything
|
||||||
|
-noasm ....... disable all assembly optimizations
|
||||||
|
```
|
||||||
|
|
||||||
|
## WebP file analysis tool
|
||||||
|
|
||||||
|
`webpinfo` can be used to print out the chunk level structure and bitstream
|
||||||
|
header information of WebP files. It can also check if the files are of valid
|
||||||
|
WebP format.
|
||||||
|
|
||||||
|
Usage:
|
||||||
|
|
||||||
|
```shell
|
||||||
|
webpinfo [options] in_files
|
||||||
|
```
|
||||||
|
|
||||||
|
Note: there could be multiple input files; options must come before input files.
|
||||||
|
|
||||||
|
Options:
|
||||||
|
|
||||||
|
```
|
||||||
|
-version ........... Print version number and exit.
|
||||||
|
-quiet ............. Do not show chunk parsing information.
|
||||||
|
-diag .............. Show parsing error diagnosis.
|
||||||
|
-summary ........... Show chunk stats summary.
|
||||||
|
-bitstream_info .... Parse bitstream header.
|
||||||
|
```
|
||||||
|
|
||||||
|
## Visualization tool
|
||||||
|
|
||||||
|
There's a little self-serve visualization tool called 'vwebp' under the
|
||||||
|
examples/ directory. It uses OpenGL to open a simple drawing window and show a
|
||||||
|
decoded WebP file. It's not yet integrated in the automake build system, but you
|
||||||
|
can try to manually compile it using the recommendations below.
|
||||||
|
|
||||||
|
Usage:
|
||||||
|
|
||||||
|
```shell
|
||||||
|
vwebp in_file [options]
|
||||||
|
```
|
||||||
|
|
||||||
|
Decodes the WebP image file and visualize it using OpenGL
|
||||||
|
|
||||||
|
Options are:
|
||||||
|
|
||||||
|
```
|
||||||
|
-version ..... print version number and exit
|
||||||
|
-noicc ....... don't use the icc profile if present
|
||||||
|
-nofancy ..... don't use the fancy YUV420 upscaler
|
||||||
|
-nofilter .... disable in-loop filtering
|
||||||
|
-dither <int> dithering strength (0..100), default=50
|
||||||
|
-noalphadither disable alpha plane dithering
|
||||||
|
-usebgcolor .. display background color
|
||||||
|
-mt .......... use multi-threading
|
||||||
|
-info ........ print info
|
||||||
|
-h ........... this help message
|
||||||
|
```
|
||||||
|
|
||||||
|
Keyboard shortcuts:
|
||||||
|
|
||||||
|
```
|
||||||
|
'c' ................ toggle use of color profile
|
||||||
|
'b' ................ toggle background color display
|
||||||
|
'i' ................ overlay file information
|
||||||
|
'd' ................ disable blending & disposal (debug)
|
||||||
|
'q' / 'Q' / ESC .... quit
|
||||||
|
```
|
||||||
|
|
||||||
|
### Building
|
||||||
|
|
||||||
|
Prerequisites:
|
||||||
|
|
||||||
|
1. OpenGL & OpenGL Utility Toolkit (GLUT)
|
||||||
|
|
||||||
|
Linux: `sudo apt-get install freeglut3-dev mesa-common-dev`
|
||||||
|
|
||||||
|
Mac + Xcode: These libraries should be available in the OpenGL / GLUT
|
||||||
|
frameworks.
|
||||||
|
|
||||||
|
Windows: http://freeglut.sourceforge.net/index.php#download
|
||||||
|
|
||||||
|
2. (Optional) qcms (Quick Color Management System)
|
||||||
|
|
||||||
|
1. Download qcms from Mozilla / Chromium:
|
||||||
|
https://hg.mozilla.org/mozilla-central/file/0e7639e3bdfb/gfx/qcms
|
||||||
|
https://source.chromium.org/chromium/chromium/src/+/main:third_party/qcms/;drc=d4a2f8e1ed461d8fc05ed88d1ae2dc94c9773825
|
||||||
|
2. Build and archive the source files as libqcms.a / qcms.lib
|
||||||
|
3. Update makefile.unix / Makefile.vc
|
||||||
|
1. Define WEBP_HAVE_QCMS
|
||||||
|
2. Update include / library paths to reference the qcms directory.
|
||||||
|
|
||||||
|
Build using makefile.unix / Makefile.vc:
|
||||||
|
|
||||||
|
```shell
|
||||||
|
$ make -f makefile.unix examples/vwebp
|
||||||
|
> nmake /f Makefile.vc CFG=release-static \
|
||||||
|
../obj/x64/release-static/bin/vwebp.exe
|
||||||
|
```
|
||||||
|
|
||||||
|
## Animation creation tool
|
||||||
|
|
||||||
|
The utility `img2webp` can turn a sequence of input images (PNG, JPEG, ...) into
|
||||||
|
an animated WebP file. It offers fine control over duration, encoding modes,
|
||||||
|
etc.
|
||||||
|
|
||||||
|
Usage:
|
||||||
|
|
||||||
|
```shell
|
||||||
|
img2webp [file_options] [[frame_options] frame_file]... [-o webp_file]
|
||||||
|
```
|
||||||
|
|
||||||
|
File-level options (only used at the start of compression):
|
||||||
|
|
||||||
|
```
|
||||||
|
-min_size ............ minimize size
|
||||||
|
-kmax <int> .......... maximum number of frame between key-frames
|
||||||
|
(0=only keyframes)
|
||||||
|
-kmin <int> .......... minimum number of frame between key-frames
|
||||||
|
(0=disable key-frames altogether)
|
||||||
|
-mixed ............... use mixed lossy/lossless automatic mode
|
||||||
|
-near_lossless <int> . use near-lossless image preprocessing
|
||||||
|
(0..100=off), default=100
|
||||||
|
-sharp_yuv ........... use sharper (and slower) RGB->YUV conversion
|
||||||
|
(lossy only)
|
||||||
|
-loop <int> .......... loop count (default: 0, = infinite loop)
|
||||||
|
-v ................... verbose mode
|
||||||
|
-h ................... this help
|
||||||
|
-version ............. print version number and exit
|
||||||
|
```
|
||||||
|
|
||||||
|
Per-frame options (only used for subsequent images input):
|
||||||
|
|
||||||
|
```
|
||||||
|
-d <int> ............. frame duration in ms (default: 100)
|
||||||
|
-lossless ........... use lossless mode (default)
|
||||||
|
-lossy ... ........... use lossy mode
|
||||||
|
-q <float> ........... quality
|
||||||
|
-m <int> ............. method to use
|
||||||
|
```
|
||||||
|
|
||||||
|
example: `img2webp -loop 2 in0.png -lossy in1.jpg -d 80 in2.tiff -o out.webp`
|
||||||
|
|
||||||
|
Note: if a single file name is passed as the argument, the arguments will be
|
||||||
|
tokenized from this file. The file name must not start with the character '-'.
|
||||||
|
|
||||||
|
## Animated GIF conversion
|
||||||
|
|
||||||
|
Animated GIF files can be converted to WebP files with animation using the
|
||||||
|
gif2webp utility available under examples/. The files can then be viewed using
|
||||||
|
vwebp.
|
||||||
|
|
||||||
|
Usage:
|
||||||
|
|
||||||
|
```shell
|
||||||
|
gif2webp [options] gif_file -o webp_file
|
||||||
|
```
|
||||||
|
|
||||||
|
Options:
|
||||||
|
|
||||||
|
```
|
||||||
|
-h / -help ............. this help
|
||||||
|
-lossy ................. encode image using lossy compression
|
||||||
|
-mixed ................. for each frame in the image, pick lossy
|
||||||
|
or lossless compression heuristically
|
||||||
|
-q <float> ............. quality factor (0:small..100:big)
|
||||||
|
-m <int> ............... compression method (0=fast, 6=slowest)
|
||||||
|
-min_size .............. minimize output size (default:off)
|
||||||
|
lossless compression by default; can be
|
||||||
|
combined with -q, -m, -lossy or -mixed
|
||||||
|
options
|
||||||
|
-kmin <int> ............ min distance between key frames
|
||||||
|
-kmax <int> ............ max distance between key frames
|
||||||
|
-f <int> ............... filter strength (0=off..100)
|
||||||
|
-metadata <string> ..... comma separated list of metadata to
|
||||||
|
copy from the input to the output if present
|
||||||
|
Valid values: all, none, icc, xmp (default)
|
||||||
|
-loop_compatibility .... use compatibility mode for Chrome
|
||||||
|
version prior to M62 (inclusive)
|
||||||
|
-mt .................... use multi-threading if available
|
||||||
|
|
||||||
|
-version ............... print version number and exit
|
||||||
|
-v ..................... verbose
|
||||||
|
-quiet ................. don't print anything
|
||||||
|
```
|
||||||
|
|
||||||
|
### Building
|
||||||
|
|
||||||
|
With the libgif development files installed, gif2webp can be built using
|
||||||
|
makefile.unix:
|
||||||
|
|
||||||
|
```shell
|
||||||
|
$ make -f makefile.unix examples/gif2webp
|
||||||
|
```
|
||||||
|
|
||||||
|
or using autoconf:
|
||||||
|
|
||||||
|
```shell
|
||||||
|
$ ./configure --enable-everything
|
||||||
|
$ make
|
||||||
|
```
|
||||||
|
|
||||||
|
## Comparison of animated images
|
||||||
|
|
||||||
|
Test utility anim_diff under examples/ can be used to compare two animated
|
||||||
|
images (each can be GIF or WebP).
|
||||||
|
|
||||||
|
Usage:
|
||||||
|
|
||||||
|
```shell
|
||||||
|
anim_diff <image1> <image2> [options]
|
||||||
|
```
|
||||||
|
|
||||||
|
Options:
|
||||||
|
|
||||||
|
```
|
||||||
|
-dump_frames <folder> dump decoded frames in PAM format
|
||||||
|
-min_psnr <float> ... minimum per-frame PSNR
|
||||||
|
-raw_comparison ..... if this flag is not used, RGB is
|
||||||
|
premultiplied before comparison
|
||||||
|
-max_diff <int> ..... maximum allowed difference per channel
|
||||||
|
between corresponding pixels in subsequent
|
||||||
|
frames
|
||||||
|
-h .................. this help
|
||||||
|
-version ............ print version number and exit
|
||||||
|
```
|
||||||
|
|
||||||
|
### Building
|
||||||
|
|
||||||
|
With the libgif development files installed, anim_diff can be built using
|
||||||
|
makefile.unix:
|
||||||
|
|
||||||
|
```shell
|
||||||
|
$ make -f makefile.unix examples/anim_diff
|
||||||
|
```
|
||||||
|
|
||||||
|
or using autoconf:
|
||||||
|
|
||||||
|
```shell
|
||||||
|
$ ./configure --enable-everything
|
||||||
|
$ make
|
||||||
|
```
|
||||||
|
|
||||||
|
## WebP Mux tool
|
||||||
|
|
||||||
|
The examples/ directory contains a tool (webpmux) for manipulating WebP files.
|
||||||
|
The webpmux tool can be used to create an extended format WebP file and also to
|
||||||
|
extract or strip relevant data from such a file.
|
||||||
|
|
||||||
|
A list of options is available using the -help command line flag:
|
||||||
|
|
||||||
|
```shell
|
||||||
|
> webpmux -help
|
||||||
|
Usage: webpmux -get GET_OPTIONS INPUT -o OUTPUT
|
||||||
|
webpmux -set SET_OPTIONS INPUT -o OUTPUT
|
||||||
|
webpmux -duration DURATION_OPTIONS [-duration ...]
|
||||||
|
INPUT -o OUTPUT
|
||||||
|
webpmux -strip STRIP_OPTIONS INPUT -o OUTPUT
|
||||||
|
webpmux -frame FRAME_OPTIONS [-frame...] [-loop LOOP_COUNT]
|
||||||
|
[-bgcolor BACKGROUND_COLOR] -o OUTPUT
|
||||||
|
webpmux -info INPUT
|
||||||
|
webpmux [-h|-help]
|
||||||
|
webpmux -version
|
||||||
|
webpmux argument_file_name
|
||||||
|
|
||||||
|
GET_OPTIONS:
|
||||||
|
Extract relevant data:
|
||||||
|
icc get ICC profile
|
||||||
|
exif get EXIF metadata
|
||||||
|
xmp get XMP metadata
|
||||||
|
frame n get nth frame
|
||||||
|
|
||||||
|
SET_OPTIONS:
|
||||||
|
Set color profile/metadata/parameters:
|
||||||
|
loop LOOP_COUNT set the loop count
|
||||||
|
bgcolor BACKGROUND_COLOR set the animation background color
|
||||||
|
icc file.icc set ICC profile
|
||||||
|
exif file.exif set EXIF metadata
|
||||||
|
xmp file.xmp set XMP metadata
|
||||||
|
where: 'file.icc' contains the ICC profile to be set,
|
||||||
|
'file.exif' contains the EXIF metadata to be set
|
||||||
|
'file.xmp' contains the XMP metadata to be set
|
||||||
|
|
||||||
|
DURATION_OPTIONS:
|
||||||
|
Set duration of selected frames:
|
||||||
|
duration set duration for all frames
|
||||||
|
duration,frame set duration of a particular frame
|
||||||
|
duration,start,end set duration of frames in the
|
||||||
|
interval [start,end])
|
||||||
|
where: 'duration' is the duration in milliseconds
|
||||||
|
'start' is the start frame index
|
||||||
|
'end' is the inclusive end frame index
|
||||||
|
The special 'end' value '0' means: last frame.
|
||||||
|
|
||||||
|
STRIP_OPTIONS:
|
||||||
|
Strip color profile/metadata:
|
||||||
|
icc strip ICC profile
|
||||||
|
exif strip EXIF metadata
|
||||||
|
xmp strip XMP metadata
|
||||||
|
|
||||||
|
FRAME_OPTIONS(i):
|
||||||
|
Create animation:
|
||||||
|
file_i +di[+xi+yi[+mi[bi]]]
|
||||||
|
where: 'file_i' is the i'th animation frame (WebP format),
|
||||||
|
'di' is the pause duration before next frame,
|
||||||
|
'xi','yi' specify the image offset for this frame,
|
||||||
|
'mi' is the dispose method for this frame (0 or 1),
|
||||||
|
'bi' is the blending method for this frame (+b or -b)
|
||||||
|
|
||||||
|
LOOP_COUNT:
|
||||||
|
Number of times to repeat the animation.
|
||||||
|
Valid range is 0 to 65535 [Default: 0 (infinite)].
|
||||||
|
|
||||||
|
BACKGROUND_COLOR:
|
||||||
|
Background color of the canvas.
|
||||||
|
A,R,G,B
|
||||||
|
where: 'A', 'R', 'G' and 'B' are integers in the range 0 to 255 specifying
|
||||||
|
the Alpha, Red, Green and Blue component values respectively
|
||||||
|
[Default: 255,255,255,255]
|
||||||
|
|
||||||
|
INPUT & OUTPUT are in WebP format.
|
||||||
|
|
||||||
|
Note: The nature of EXIF, XMP and ICC data is not checked and is assumed to be
|
||||||
|
valid.
|
||||||
|
|
||||||
|
Note: if a single file name is passed as the argument, the arguments will be
|
||||||
|
tokenized from this file. The file name must not start with the character '-'.
|
||||||
|
```
|
870
doc/webp-container-spec.txt
Normal file
870
doc/webp-container-spec.txt
Normal file
@ -0,0 +1,870 @@
|
|||||||
|
<!--
|
||||||
|
|
||||||
|
Although you may be viewing an alternate representation, this document
|
||||||
|
is sourced in Markdown, a light-duty markup scheme, and is optimized for
|
||||||
|
the [kramdown](https://kramdown.gettalong.org/) transformer.
|
||||||
|
|
||||||
|
See the accompanying specs_generation.md. External link targets are referenced
|
||||||
|
at the end of this file.
|
||||||
|
|
||||||
|
-->
|
||||||
|
|
||||||
|
|
||||||
|
WebP Container Specification
|
||||||
|
============================
|
||||||
|
|
||||||
|
* TOC placeholder
|
||||||
|
{:toc}
|
||||||
|
|
||||||
|
|
||||||
|
Introduction
|
||||||
|
------------
|
||||||
|
|
||||||
|
WebP is an image format that uses either (i) the VP8 key frame encoding to
|
||||||
|
compress image data in a lossy way or (ii) the WebP lossless encoding. These
|
||||||
|
encoding schemes should make it more efficient than older formats, such as JPEG,
|
||||||
|
GIF, and PNG. It is optimized for fast image transfer over the network (for
|
||||||
|
example, for websites). The WebP format has feature parity (color profile,
|
||||||
|
metadata, animation, etc.) with other formats as well. This document describes
|
||||||
|
the structure of a WebP file.
|
||||||
|
|
||||||
|
The WebP container (that is, the RIFF container for WebP) allows feature support
|
||||||
|
over and above the basic use case of WebP (that is, a file containing a single
|
||||||
|
image encoded as a VP8 key frame). The WebP container provides additional
|
||||||
|
support for the following:
|
||||||
|
|
||||||
|
* Lossless Compression: An image can be losslessly compressed, using the
|
||||||
|
WebP Lossless Format.
|
||||||
|
|
||||||
|
* Metadata: An image may have metadata stored in Exchangeable Image File
|
||||||
|
Format (Exif) or Extensible Metadata Platform (XMP) format.
|
||||||
|
|
||||||
|
* Transparency: An image may have transparency, that is, an alpha channel.
|
||||||
|
|
||||||
|
* Color Profile: An image may have an embedded ICC profile as described
|
||||||
|
by the [International Color Consortium][iccspec].
|
||||||
|
|
||||||
|
* Animation: An image may have multiple frames with pauses between them,
|
||||||
|
making it an animation.
|
||||||
|
|
||||||
|
Terminology & Basics
|
||||||
|
--------------------
|
||||||
|
|
||||||
|
The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT", "SHOULD",
|
||||||
|
"SHOULD NOT", "RECOMMENDED", "NOT RECOMMENDED", "MAY", and "OPTIONAL" in this
|
||||||
|
document are to be interpreted as described in BCP 14 [RFC 2119][] [RFC 8174][]
|
||||||
|
when, and only when, they appear in all capitals, as shown here.
|
||||||
|
|
||||||
|
A WebP file contains either a still image (that is, an encoded matrix of pixels)
|
||||||
|
or an [animation](#animation). Optionally, it can also contain transparency
|
||||||
|
information, a color profile and metadata. We refer to the matrix of pixels as
|
||||||
|
the _canvas_ of the image.
|
||||||
|
|
||||||
|
Bit numbering in chunk diagrams starts at `0` for the most significant bit
|
||||||
|
('MSB 0'), as described in [RFC 1166][].
|
||||||
|
|
||||||
|
Below are additional terms used throughout this document:
|
||||||
|
|
||||||
|
_Reader/Writer_
|
||||||
|
|
||||||
|
: Code that reads WebP files is referred to as a _reader_, while code that
|
||||||
|
writes them is referred to as a _writer_.
|
||||||
|
|
||||||
|
_uint16_
|
||||||
|
|
||||||
|
: A 16-bit, little-endian, unsigned integer.
|
||||||
|
|
||||||
|
_uint24_
|
||||||
|
|
||||||
|
: A 24-bit, little-endian, unsigned integer.
|
||||||
|
|
||||||
|
_uint32_
|
||||||
|
|
||||||
|
: A 32-bit, little-endian, unsigned integer.
|
||||||
|
|
||||||
|
_FourCC_
|
||||||
|
|
||||||
|
: A four-character code (FourCC) is a _uint32_ created by concatenating four
|
||||||
|
ASCII characters in little-endian order. This means 'aaaa' (0x61616161) and
|
||||||
|
'AAAA' (0x41414141) are treated as different _FourCCs_.
|
||||||
|
|
||||||
|
_1-based_
|
||||||
|
|
||||||
|
: An unsigned integer field storing values offset by `-1`, for example, such a
|
||||||
|
field would store value _25_ as _24_.
|
||||||
|
|
||||||
|
_ChunkHeader('ABCD')_
|
||||||
|
|
||||||
|
: Used to describe the _FourCC_ and _Chunk Size_ header of individual chunks,
|
||||||
|
where 'ABCD' is the FourCC for the chunk. This element's size is 8 bytes.
|
||||||
|
|
||||||
|
|
||||||
|
RIFF File Format
|
||||||
|
----------------
|
||||||
|
|
||||||
|
The WebP file format is based on the RIFF (Resource Interchange File Format)
|
||||||
|
document format.
|
||||||
|
|
||||||
|
The basic element of a RIFF file is a _chunk_. It consists of:
|
||||||
|
|
||||||
|
0 1 2 3
|
||||||
|
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
|
||||||
|
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|
||||||
|
| Chunk FourCC |
|
||||||
|
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|
||||||
|
| Chunk Size |
|
||||||
|
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|
||||||
|
: Chunk Payload :
|
||||||
|
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|
||||||
|
|
||||||
|
Chunk FourCC: 32 bits
|
||||||
|
|
||||||
|
: ASCII four-character code used for chunk identification.
|
||||||
|
|
||||||
|
Chunk Size: 32 bits (_uint32_)
|
||||||
|
|
||||||
|
: The size of the chunk in bytes, not including this field, the chunk
|
||||||
|
identifier, or padding.
|
||||||
|
|
||||||
|
Chunk Payload: _Chunk Size_ bytes
|
||||||
|
|
||||||
|
: The data payload. If _Chunk Size_ is odd, a single padding byte -- which MUST
|
||||||
|
be `0` to conform with RIFF -- is added.
|
||||||
|
|
||||||
|
**Note:** RIFF has a convention that all-uppercase chunk FourCCs are standard
|
||||||
|
chunks that apply to any RIFF file format, while FourCCs specific to a file
|
||||||
|
format are all lowercase. WebP does not follow this convention.
|
||||||
|
|
||||||
|
|
||||||
|
WebP File Header
|
||||||
|
----------------
|
||||||
|
|
||||||
|
0 1 2 3
|
||||||
|
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
|
||||||
|
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|
||||||
|
| 'R' | 'I' | 'F' | 'F' |
|
||||||
|
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|
||||||
|
| File Size |
|
||||||
|
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|
||||||
|
| 'W' | 'E' | 'B' | 'P' |
|
||||||
|
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|
||||||
|
|
||||||
|
'RIFF': 32 bits
|
||||||
|
|
||||||
|
: The ASCII characters 'R', 'I', 'F', 'F'.
|
||||||
|
|
||||||
|
File Size: 32 bits (_uint32_)
|
||||||
|
|
||||||
|
: The size of the file in bytes, starting at offset 8. The maximum value of
|
||||||
|
this field is 2^32 minus 10 bytes and thus the size of the whole file is at
|
||||||
|
most 4 GiB minus 2 bytes.
|
||||||
|
|
||||||
|
'WEBP': 32 bits
|
||||||
|
|
||||||
|
: The ASCII characters 'W', 'E', 'B', 'P'.
|
||||||
|
|
||||||
|
A WebP file MUST begin with a RIFF header with the FourCC 'WEBP'. The file size
|
||||||
|
in the header is the total size of the chunks that follow plus `4` bytes for
|
||||||
|
the 'WEBP' FourCC. The file SHOULD NOT contain any data after the data
|
||||||
|
specified by _File Size_. Readers MAY parse such files, ignoring the trailing
|
||||||
|
data. As the size of any chunk is even, the size given by the RIFF header is
|
||||||
|
also even. The contents of individual chunks are described in the following
|
||||||
|
sections.
|
||||||
|
|
||||||
|
|
||||||
|
Simple File Format (Lossy)
|
||||||
|
--------------------------
|
||||||
|
|
||||||
|
This layout SHOULD be used if the image requires _lossy_ encoding and does not
|
||||||
|
require transparency or other advanced features provided by the extended format.
|
||||||
|
Files with this layout are smaller and supported by older software.
|
||||||
|
|
||||||
|
Simple WebP (lossy) file format:
|
||||||
|
|
||||||
|
0 1 2 3
|
||||||
|
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
|
||||||
|
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|
||||||
|
| |
|
||||||
|
| WebP file header (12 bytes) |
|
||||||
|
| |
|
||||||
|
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|
||||||
|
: 'VP8 ' Chunk :
|
||||||
|
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|
||||||
|
|
||||||
|
'VP8 ' Chunk:
|
||||||
|
|
||||||
|
0 1 2 3
|
||||||
|
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
|
||||||
|
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|
||||||
|
| ChunkHeader('VP8 ') |
|
||||||
|
| |
|
||||||
|
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|
||||||
|
: VP8 data :
|
||||||
|
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|
||||||
|
|
||||||
|
VP8 data: _Chunk Size_ bytes
|
||||||
|
|
||||||
|
: VP8 bitstream data.
|
||||||
|
|
||||||
|
Note that the fourth character in the 'VP8 ' FourCC is an ASCII space (0x20).
|
||||||
|
|
||||||
|
The VP8 bitstream format specification is described in [VP8 Data Format and
|
||||||
|
Decoding Guide][rfc 6386]. Note that the VP8 frame header contains the VP8 frame
|
||||||
|
width and height. That is assumed to be the width and height of the canvas.
|
||||||
|
|
||||||
|
The VP8 specification describes how to decode the image into Y'CbCr format. To
|
||||||
|
convert to RGB, [Recommendation BT.601][rec601] SHOULD be used. Applications MAY
|
||||||
|
use another conversion method, but visual results may differ among decoders.
|
||||||
|
|
||||||
|
|
||||||
|
Simple File Format (Lossless)
|
||||||
|
-----------------------------
|
||||||
|
|
||||||
|
**Note:** Older readers may not support files using the lossless format.
|
||||||
|
|
||||||
|
This layout SHOULD be used if the image requires _lossless_ encoding (with an
|
||||||
|
optional transparency channel) and does not require advanced features provided
|
||||||
|
by the extended format.
|
||||||
|
|
||||||
|
Simple WebP (lossless) file format:
|
||||||
|
|
||||||
|
0 1 2 3
|
||||||
|
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
|
||||||
|
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|
||||||
|
| |
|
||||||
|
| WebP file header (12 bytes) |
|
||||||
|
| |
|
||||||
|
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|
||||||
|
: 'VP8L' Chunk :
|
||||||
|
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|
||||||
|
|
||||||
|
'VP8L' Chunk:
|
||||||
|
|
||||||
|
0 1 2 3
|
||||||
|
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
|
||||||
|
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|
||||||
|
| ChunkHeader('VP8L') |
|
||||||
|
| |
|
||||||
|
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|
||||||
|
: VP8L data :
|
||||||
|
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|
||||||
|
|
||||||
|
VP8L data: _Chunk Size_ bytes
|
||||||
|
|
||||||
|
: VP8L bitstream data.
|
||||||
|
|
||||||
|
The current specification of the VP8L bitstream can be found at
|
||||||
|
[WebP Lossless Bitstream Format][webpllspec]. Note that the VP8L header
|
||||||
|
contains the VP8L image width and height. That is assumed to be the width
|
||||||
|
and height of the canvas.
|
||||||
|
|
||||||
|
|
||||||
|
Extended File Format
|
||||||
|
--------------------
|
||||||
|
|
||||||
|
**Note:** Older readers may not support files using the extended format.
|
||||||
|
|
||||||
|
An extended format file consists of:
|
||||||
|
|
||||||
|
* A 'VP8X' Chunk with information about features used in the file.
|
||||||
|
|
||||||
|
* An optional 'ICCP' Chunk with a color profile.
|
||||||
|
|
||||||
|
* An optional 'ANIM' Chunk with animation control data.
|
||||||
|
|
||||||
|
* Image data.
|
||||||
|
|
||||||
|
* An optional 'EXIF' Chunk with Exif metadata.
|
||||||
|
|
||||||
|
* An optional 'XMP ' Chunk with XMP metadata.
|
||||||
|
|
||||||
|
* An optional list of [unknown chunks](#unknown-chunks).
|
||||||
|
|
||||||
|
For a _still image_, the _image data_ consists of a single frame, which is made
|
||||||
|
up of:
|
||||||
|
|
||||||
|
* An optional [alpha subchunk](#alpha).
|
||||||
|
|
||||||
|
* A [bitstream subchunk](#bitstream-vp8vp8l).
|
||||||
|
|
||||||
|
For an _animated image_, the _image data_ consists of multiple frames. More
|
||||||
|
details about frames can be found in the [Animation](#animation) section.
|
||||||
|
|
||||||
|
All chunks SHOULD be placed in the same order as listed above. If a chunk
|
||||||
|
appears in the wrong place, the file is invalid, but readers MAY parse the
|
||||||
|
file, ignoring the chunks that are out of order.
|
||||||
|
|
||||||
|
**Rationale:** Setting the order of chunks should allow quicker file
|
||||||
|
parsing. For example, if an 'ALPH' Chunk does not appear in its required
|
||||||
|
position, a decoder can choose to stop searching for it. The rule of
|
||||||
|
ignoring late chunks should make programs that need to do a full search
|
||||||
|
give the same results as the ones stopping early.
|
||||||
|
|
||||||
|
Extended WebP file header:
|
||||||
|
{:#extended_header}
|
||||||
|
|
||||||
|
0 1 2 3
|
||||||
|
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
|
||||||
|
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|
||||||
|
| |
|
||||||
|
| WebP file header (12 bytes) |
|
||||||
|
| |
|
||||||
|
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|
||||||
|
| ChunkHeader('VP8X') |
|
||||||
|
| |
|
||||||
|
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|
||||||
|
|Rsv|I|L|E|X|A|R| Reserved |
|
||||||
|
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|
||||||
|
| Canvas Width Minus One | ...
|
||||||
|
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|
||||||
|
... Canvas Height Minus One |
|
||||||
|
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|
||||||
|
|
||||||
|
Reserved (Rsv): 2 bits
|
||||||
|
|
||||||
|
: MUST be `0`. Readers MUST ignore this field.
|
||||||
|
|
||||||
|
ICC profile (I): 1 bit
|
||||||
|
|
||||||
|
: Set if the file contains an 'ICCP' Chunk.
|
||||||
|
|
||||||
|
Alpha (L): 1 bit
|
||||||
|
|
||||||
|
: Set if any of the frames of the image contain transparency information
|
||||||
|
("alpha").
|
||||||
|
|
||||||
|
Exif metadata (E): 1 bit
|
||||||
|
|
||||||
|
: Set if the file contains Exif metadata.
|
||||||
|
|
||||||
|
XMP metadata (X): 1 bit
|
||||||
|
|
||||||
|
: Set if the file contains XMP metadata.
|
||||||
|
|
||||||
|
Animation (A): 1 bit
|
||||||
|
|
||||||
|
: Set if this is an animated image. Data in 'ANIM' and 'ANMF' Chunks should be
|
||||||
|
used to control the animation.
|
||||||
|
|
||||||
|
Reserved (R): 1 bit
|
||||||
|
|
||||||
|
: MUST be `0`. Readers MUST ignore this field.
|
||||||
|
|
||||||
|
Reserved: 24 bits
|
||||||
|
|
||||||
|
: MUST be `0`. Readers MUST ignore this field.
|
||||||
|
|
||||||
|
Canvas Width Minus One: 24 bits
|
||||||
|
|
||||||
|
: _1-based_ width of the canvas in pixels.
|
||||||
|
The actual canvas width is `1 + Canvas Width Minus One`.
|
||||||
|
|
||||||
|
Canvas Height Minus One: 24 bits
|
||||||
|
|
||||||
|
: _1-based_ height of the canvas in pixels.
|
||||||
|
The actual canvas height is `1 + Canvas Height Minus One`.
|
||||||
|
|
||||||
|
The product of _Canvas Width_ and _Canvas Height_ MUST be at most `2^32 - 1`.
|
||||||
|
|
||||||
|
Future specifications may add more fields. Unknown fields MUST be ignored.
|
||||||
|
|
||||||
|
### Chunks
|
||||||
|
|
||||||
|
#### Animation
|
||||||
|
|
||||||
|
An animation is controlled by 'ANIM' and 'ANMF' Chunks.
|
||||||
|
|
||||||
|
'ANIM' Chunk:
|
||||||
|
{:#anim_chunk}
|
||||||
|
|
||||||
|
For an animated image, this chunk contains the _global parameters_ of the
|
||||||
|
animation.
|
||||||
|
|
||||||
|
0 1 2 3
|
||||||
|
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
|
||||||
|
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|
||||||
|
| ChunkHeader('ANIM') |
|
||||||
|
| |
|
||||||
|
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|
||||||
|
| Background Color |
|
||||||
|
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|
||||||
|
| Loop Count |
|
||||||
|
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|
||||||
|
|
||||||
|
Background Color: 32 bits (_uint32_)
|
||||||
|
|
||||||
|
: The default background color of the canvas in \[Blue, Green, Red, Alpha\]
|
||||||
|
byte order. This color MAY be used to fill the unused space on the canvas
|
||||||
|
around the frames, as well as the transparent pixels of the first frame.
|
||||||
|
The background color is also used when the Disposal method is `1`.
|
||||||
|
|
||||||
|
**Note**:
|
||||||
|
|
||||||
|
* The background color MAY contain a non-opaque alpha value, even if the
|
||||||
|
_Alpha_ flag in the ['VP8X' Chunk](#extended_header) is unset.
|
||||||
|
|
||||||
|
* Viewer applications SHOULD treat the background color value as a hint and
|
||||||
|
are not required to use it.
|
||||||
|
|
||||||
|
* The canvas is cleared at the start of each loop. The background color MAY be
|
||||||
|
used to achieve this.
|
||||||
|
|
||||||
|
Loop Count: 16 bits (_uint16_)
|
||||||
|
|
||||||
|
: The number of times to loop the animation. If it is `0`, this means
|
||||||
|
infinitely.
|
||||||
|
|
||||||
|
This chunk MUST appear if the _Animation_ flag in the 'VP8X' Chunk is set.
|
||||||
|
If the _Animation_ flag is not set and this chunk is present, it MUST be
|
||||||
|
ignored.
|
||||||
|
|
||||||
|
'ANMF' Chunk:
|
||||||
|
|
||||||
|
For animated images, this chunk contains information about a _single_ frame.
|
||||||
|
If the _Animation flag_ is not set, then this chunk SHOULD NOT be present.
|
||||||
|
|
||||||
|
0 1 2 3
|
||||||
|
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
|
||||||
|
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|
||||||
|
| ChunkHeader('ANMF') |
|
||||||
|
| |
|
||||||
|
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|
||||||
|
| Frame X | ...
|
||||||
|
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|
||||||
|
... Frame Y | Frame Width Minus One ...
|
||||||
|
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|
||||||
|
... | Frame Height Minus One |
|
||||||
|
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|
||||||
|
| Frame Duration | Reserved |B|D|
|
||||||
|
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|
||||||
|
: Frame Data :
|
||||||
|
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|
||||||
|
|
||||||
|
Frame X: 24 bits (_uint24_)
|
||||||
|
|
||||||
|
: The X coordinate of the upper left corner of the frame is `Frame X * 2`.
|
||||||
|
|
||||||
|
Frame Y: 24 bits (_uint24_)
|
||||||
|
|
||||||
|
: The Y coordinate of the upper left corner of the frame is `Frame Y * 2`.
|
||||||
|
|
||||||
|
Frame Width Minus One: 24 bits (_uint24_)
|
||||||
|
|
||||||
|
: The _1-based_ width of the frame.
|
||||||
|
The frame width is `1 + Frame Width Minus One`.
|
||||||
|
|
||||||
|
Frame Height Minus One: 24 bits (_uint24_)
|
||||||
|
|
||||||
|
: The _1-based_ height of the frame.
|
||||||
|
The frame height is `1 + Frame Height Minus One`.
|
||||||
|
|
||||||
|
Frame Duration: 24 bits (_uint24_)
|
||||||
|
|
||||||
|
: The time to wait before displaying the next frame, in 1-millisecond units.
|
||||||
|
Note that the interpretation of the Frame Duration of 0 (and often <= 10) is
|
||||||
|
defined by the implementation. Many tools and browsers assign a minimum
|
||||||
|
duration similar to GIF.
|
||||||
|
|
||||||
|
Reserved: 6 bits
|
||||||
|
|
||||||
|
: MUST be `0`. Readers MUST ignore this field.
|
||||||
|
|
||||||
|
Blending method (B): 1 bit
|
||||||
|
|
||||||
|
: Indicates how transparent pixels of _the current frame_ are to be blended
|
||||||
|
with corresponding pixels of the previous canvas:
|
||||||
|
|
||||||
|
* `0`: Use alpha-blending. After disposing of the previous frame, render the
|
||||||
|
current frame on the canvas using [alpha-blending](#alpha-blending). If
|
||||||
|
the current frame does not have an alpha channel, assume the alpha value
|
||||||
|
is 255, effectively replacing the rectangle.
|
||||||
|
|
||||||
|
* `1`: Do not blend. After disposing of the previous frame, render the
|
||||||
|
current frame on the canvas by overwriting the rectangle covered by the
|
||||||
|
current frame.
|
||||||
|
|
||||||
|
Disposal method (D): 1 bit
|
||||||
|
|
||||||
|
: Indicates how _the current frame_ is to be treated after it has been
|
||||||
|
displayed (before rendering the next frame) on the canvas:
|
||||||
|
|
||||||
|
* `0`: Do not dispose. Leave the canvas as is.
|
||||||
|
|
||||||
|
* `1`: Dispose to the background color. Fill the _rectangle_ on the canvas
|
||||||
|
covered by the _current frame_ with the background color specified in the
|
||||||
|
['ANIM' Chunk](#anim_chunk).
|
||||||
|
|
||||||
|
**Notes**:
|
||||||
|
|
||||||
|
* The frame disposal only applies to the _frame rectangle_, that is, the
|
||||||
|
rectangle defined by _Frame X_, _Frame Y_, _frame width_, and _frame
|
||||||
|
height_. It may or may not cover the whole canvas.
|
||||||
|
|
||||||
|
{:#alpha-blending}
|
||||||
|
* Alpha-blending:
|
||||||
|
|
||||||
|
Given that each of the R, G, B, and A channels is 8 bits, and the RGB
|
||||||
|
channels are _not premultiplied_ by alpha, the formula for blending
|
||||||
|
'dst' onto 'src' is:
|
||||||
|
|
||||||
|
~~~~~
|
||||||
|
blend.A = src.A + dst.A * (1 - src.A / 255)
|
||||||
|
if blend.A = 0 then
|
||||||
|
blend.RGB = 0
|
||||||
|
else
|
||||||
|
blend.RGB =
|
||||||
|
(src.RGB * src.A +
|
||||||
|
dst.RGB * dst.A * (1 - src.A / 255)) / blend.A
|
||||||
|
~~~~~
|
||||||
|
|
||||||
|
* Alpha-blending SHOULD be done in linear color space, by taking into account
|
||||||
|
the [color profile](#color-profile) of the image. If the color profile is
|
||||||
|
not present, standard RGB (sRGB) is to be assumed. (Note that sRGB also
|
||||||
|
needs to be linearized due to a gamma of ~2.2.)
|
||||||
|
|
||||||
|
Frame Data: _Chunk Size_ - `16` bytes
|
||||||
|
|
||||||
|
: Consists of:
|
||||||
|
|
||||||
|
* An optional [alpha subchunk](#alpha) for the frame.
|
||||||
|
|
||||||
|
* A [bitstream subchunk](#bitstream-vp8vp8l) for the frame.
|
||||||
|
|
||||||
|
* An optional list of [unknown chunks](#unknown-chunks).
|
||||||
|
|
||||||
|
**Note**: The 'ANMF' payload, _Frame Data_ above, consists of individual
|
||||||
|
_padded_ chunks, as described by the [RIFF file format](#riff-file-format).
|
||||||
|
|
||||||
|
#### Alpha
|
||||||
|
|
||||||
|
0 1 2 3
|
||||||
|
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
|
||||||
|
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|
||||||
|
| ChunkHeader('ALPH') |
|
||||||
|
| |
|
||||||
|
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|
||||||
|
|Rsv| P | F | C | Alpha Bitstream... |
|
||||||
|
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|
||||||
|
|
||||||
|
Reserved (Rsv): 2 bits
|
||||||
|
|
||||||
|
: MUST be `0`. Readers MUST ignore this field.
|
||||||
|
|
||||||
|
Preprocessing (P): 2 bits
|
||||||
|
|
||||||
|
: These _informative_ bits are used to signal the preprocessing that has
|
||||||
|
been performed during compression. The decoder can use this information to
|
||||||
|
for example, dither the values or smooth the gradients prior to display.
|
||||||
|
|
||||||
|
* `0`: No preprocessing.
|
||||||
|
* `1`: Level reduction.
|
||||||
|
|
||||||
|
Decoders are not required to use this information in any specified way.
|
||||||
|
|
||||||
|
Filtering method (F): 2 bits
|
||||||
|
|
||||||
|
: The filtering methods used are described as follows:
|
||||||
|
|
||||||
|
* `0`: None.
|
||||||
|
* `1`: Horizontal filter.
|
||||||
|
* `2`: Vertical filter.
|
||||||
|
* `3`: Gradient filter.
|
||||||
|
|
||||||
|
For each pixel, filtering is performed using the following calculations.
|
||||||
|
Assume the alpha values surrounding the current `X` position are labeled as:
|
||||||
|
|
||||||
|
C | B |
|
||||||
|
---+---+
|
||||||
|
A | X |
|
||||||
|
|
||||||
|
We seek to compute the alpha value at position `X`. First, a prediction is
|
||||||
|
made depending on the filtering method:
|
||||||
|
|
||||||
|
* Method `0`: predictor = 0
|
||||||
|
* Method `1`: predictor = A
|
||||||
|
* Method `2`: predictor = B
|
||||||
|
* Method `3`: predictor = clip(A + B - C)
|
||||||
|
|
||||||
|
where `clip(v)` is equal to:
|
||||||
|
|
||||||
|
* 0 if v < 0,
|
||||||
|
* 255 if v > 255, or
|
||||||
|
* v otherwise
|
||||||
|
|
||||||
|
The final value is derived by adding the decompressed value `X` to the
|
||||||
|
predictor and using modulo-256 arithmetic to wrap the \[256..511\] range
|
||||||
|
into the \[0..255\] one:
|
||||||
|
|
||||||
|
`alpha = (predictor + X) % 256`
|
||||||
|
|
||||||
|
There are special cases for the left-most and top-most pixel positions. For
|
||||||
|
example, the top-left value at location (0, 0) uses 0 as the predictor value.
|
||||||
|
Otherwise:
|
||||||
|
|
||||||
|
* For horizontal or gradient filtering methods, the left-most pixels at
|
||||||
|
location (0, y) are predicted using the location (0, y-1) just above.
|
||||||
|
* For vertical or gradient filtering methods, the top-most pixels at
|
||||||
|
location (x, 0) are predicted using the location (x-1, 0) on the left.
|
||||||
|
|
||||||
|
Compression method (C): 2 bits
|
||||||
|
|
||||||
|
: The compression method used:
|
||||||
|
|
||||||
|
* `0`: No compression.
|
||||||
|
* `1`: Compressed using the WebP lossless format.
|
||||||
|
|
||||||
|
Alpha bitstream: _Chunk Size_ - `1` bytes
|
||||||
|
|
||||||
|
: Encoded alpha bitstream.
|
||||||
|
|
||||||
|
This optional chunk contains encoded alpha data for this frame. A frame
|
||||||
|
containing a 'VP8L' Chunk SHOULD NOT contain this chunk.
|
||||||
|
|
||||||
|
**Rationale**: The transparency information is already part of the 'VP8L'
|
||||||
|
Chunk.
|
||||||
|
|
||||||
|
The alpha channel data is stored as uncompressed raw data (when the
|
||||||
|
compression method is '0') or compressed using the lossless format
|
||||||
|
(when the compression method is '1').
|
||||||
|
|
||||||
|
* Raw data: This consists of a byte sequence of length = width * height,
|
||||||
|
containing all the 8-bit transparency values in scan order.
|
||||||
|
|
||||||
|
* Lossless format compression: The byte sequence is a compressed
|
||||||
|
image-stream (as described in ["WebP Lossless Bitstream Format"]
|
||||||
|
[webpllspec]) of implicit dimensions width x height. That is, this
|
||||||
|
image-stream does NOT contain any headers describing the image dimensions.
|
||||||
|
|
||||||
|
**Rationale**: The dimensions are already known from other sources,
|
||||||
|
so storing them again would be redundant and prone to error.
|
||||||
|
|
||||||
|
Once the image-stream is decoded into Alpha, Red, Green, Blue (ARGB) color
|
||||||
|
values, following the process described in the lossless format
|
||||||
|
specification, the transparency information must be extracted from the
|
||||||
|
*green* channel of the ARGB quadruplet.
|
||||||
|
|
||||||
|
**Rationale**: The green channel is allowed extra transformation
|
||||||
|
steps in the specification -- unlike the other channels -- that can
|
||||||
|
improve compression.
|
||||||
|
|
||||||
|
#### Bitstream (VP8/VP8L)
|
||||||
|
|
||||||
|
This chunk contains compressed bitstream data for a single frame.
|
||||||
|
|
||||||
|
A bitstream chunk may be either (i) a 'VP8 ' Chunk, using 'VP8 ' (note the
|
||||||
|
significant fourth-character space) as its FourCC, _or_ (ii) a 'VP8L' Chunk,
|
||||||
|
using 'VP8L' as its FourCC.
|
||||||
|
|
||||||
|
The formats of 'VP8 ' and 'VP8L' Chunks are as described in sections
|
||||||
|
[Simple File Format (Lossy)](#simple-file-format-lossy)
|
||||||
|
and [Simple File Format (Lossless)](#simple-file-format-lossless), respectively.
|
||||||
|
|
||||||
|
#### Color Profile
|
||||||
|
|
||||||
|
0 1 2 3
|
||||||
|
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
|
||||||
|
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|
||||||
|
| ChunkHeader('ICCP') |
|
||||||
|
| |
|
||||||
|
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|
||||||
|
: Color Profile :
|
||||||
|
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|
||||||
|
|
||||||
|
Color Profile: _Chunk Size_ bytes
|
||||||
|
|
||||||
|
: ICC profile.
|
||||||
|
|
||||||
|
This chunk MUST appear before the image data.
|
||||||
|
|
||||||
|
There SHOULD be at most one such chunk. If there are more such chunks, readers
|
||||||
|
MAY ignore all except the first one.
|
||||||
|
See the [ICC Specification][iccspec] for details.
|
||||||
|
|
||||||
|
If this chunk is not present, sRGB SHOULD be assumed.
|
||||||
|
|
||||||
|
#### Metadata
|
||||||
|
|
||||||
|
Metadata can be stored in 'EXIF' or 'XMP ' Chunks.
|
||||||
|
|
||||||
|
There SHOULD be at most one chunk of each type ('EXIF' and 'XMP '). If there
|
||||||
|
are more such chunks, readers MAY ignore all except the first one.
|
||||||
|
|
||||||
|
The chunks are defined as follows:
|
||||||
|
|
||||||
|
'EXIF' Chunk:
|
||||||
|
|
||||||
|
0 1 2 3
|
||||||
|
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
|
||||||
|
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|
||||||
|
| ChunkHeader('EXIF') |
|
||||||
|
| |
|
||||||
|
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|
||||||
|
: Exif Metadata :
|
||||||
|
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|
||||||
|
|
||||||
|
Exif Metadata: _Chunk Size_ bytes
|
||||||
|
|
||||||
|
: Image metadata in Exif format.
|
||||||
|
|
||||||
|
'XMP ' Chunk:
|
||||||
|
|
||||||
|
0 1 2 3
|
||||||
|
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
|
||||||
|
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|
||||||
|
| ChunkHeader('XMP ') |
|
||||||
|
| |
|
||||||
|
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|
||||||
|
: XMP Metadata :
|
||||||
|
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|
||||||
|
|
||||||
|
XMP Metadata: _Chunk Size_ bytes
|
||||||
|
|
||||||
|
: Image metadata in XMP format.
|
||||||
|
|
||||||
|
Note that the fourth character in the 'XMP ' FourCC is an ASCII space (0x20).
|
||||||
|
|
||||||
|
Additional guidance about handling metadata can be found in the
|
||||||
|
Metadata Working Group's ["Guidelines for Handling Metadata"][metadata].
|
||||||
|
|
||||||
|
#### Unknown Chunks
|
||||||
|
|
||||||
|
A RIFF chunk (described in the [RIFF File Format](#riff-file-format) section)
|
||||||
|
whose FourCC is different from any of the chunks described in this document, is
|
||||||
|
considered an _unknown chunk_.
|
||||||
|
|
||||||
|
**Rationale**: Allowing unknown chunks gives a provision for future extension
|
||||||
|
of the format and also allows storage of any application-specific data.
|
||||||
|
|
||||||
|
A file MAY contain unknown chunks:
|
||||||
|
|
||||||
|
* at the end of the file, as described in [Extended WebP file
|
||||||
|
header](#extended_header) section, or
|
||||||
|
* at the end of 'ANMF' Chunks, as described in the
|
||||||
|
[Animation](#animation) section.
|
||||||
|
|
||||||
|
Readers SHOULD ignore these chunks. Writers SHOULD preserve them in their
|
||||||
|
original order (unless they specifically intend to modify these chunks).
|
||||||
|
|
||||||
|
### Canvas Assembly from Frames
|
||||||
|
|
||||||
|
Here we provide an overview of how a reader MUST assemble a canvas in the case
|
||||||
|
of an animated image.
|
||||||
|
|
||||||
|
The process begins with creating a canvas using the dimensions given in the
|
||||||
|
'VP8X' Chunk, `Canvas Width Minus One + 1` pixels wide by `Canvas Height Minus
|
||||||
|
One + 1` pixels high. The `Loop Count` field from the 'ANIM' Chunk controls how
|
||||||
|
many times the animation process is repeated. This is `Loop Count - 1` for
|
||||||
|
nonzero `Loop Count` values or infinite if the `Loop Count` is zero.
|
||||||
|
|
||||||
|
At the beginning of each loop iteration, the canvas is filled using the
|
||||||
|
background color from the 'ANIM' Chunk or an application-defined color.
|
||||||
|
|
||||||
|
'ANMF' Chunks contain individual frames given in display order. Before rendering
|
||||||
|
each frame, the previous frame's `Disposal method` is applied.
|
||||||
|
|
||||||
|
The rendering of the decoded frame begins at the Cartesian coordinates (`2 *
|
||||||
|
Frame X`, `2 * Frame Y`), using the top-left corner of the canvas as the origin.
|
||||||
|
`Frame Width Minus One + 1` pixels wide by `Frame Height Minus One + 1` pixels
|
||||||
|
high are rendered onto the canvas using the `Blending method`.
|
||||||
|
|
||||||
|
The canvas is displayed for `Frame Duration` milliseconds. This continues until
|
||||||
|
all frames given by 'ANMF' Chunks have been displayed. A new loop iteration is
|
||||||
|
then begun, or the canvas is left in its final state if all iterations have been
|
||||||
|
completed.
|
||||||
|
|
||||||
|
The following pseudocode illustrates the rendering process. The notation
|
||||||
|
_VP8X.field_ means the field in the 'VP8X' Chunk with the same description.
|
||||||
|
|
||||||
|
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
||||||
|
assert VP8X.flags.hasAnimation
|
||||||
|
canvas ← new image of size VP8X.canvasWidth x VP8X.canvasHeight with
|
||||||
|
background color ANIM.background_color.
|
||||||
|
loop_count ← ANIM.loopCount
|
||||||
|
dispose_method ← Dispose to background color
|
||||||
|
if loop_count == 0:
|
||||||
|
loop_count = ∞
|
||||||
|
frame_params ← nil
|
||||||
|
assert next chunk in image_data is ANMF
|
||||||
|
for loop = 0..loop_count - 1
|
||||||
|
clear canvas to ANIM.background_color or application-defined color
|
||||||
|
until eof or non-ANMF chunk
|
||||||
|
frame_params.frameX = Frame X
|
||||||
|
frame_params.frameY = Frame Y
|
||||||
|
frame_params.frameWidth = Frame Width Minus One + 1
|
||||||
|
frame_params.frameHeight = Frame Height Minus One + 1
|
||||||
|
frame_params.frameDuration = Frame Duration
|
||||||
|
frame_right = frame_params.frameX + frame_params.frameWidth
|
||||||
|
frame_bottom = frame_params.frameY + frame_params.frameHeight
|
||||||
|
assert VP8X.canvasWidth >= frame_right
|
||||||
|
assert VP8X.canvasHeight >= frame_bottom
|
||||||
|
for subchunk in 'Frame Data':
|
||||||
|
if subchunk.tag == "ALPH":
|
||||||
|
assert alpha subchunks not found in 'Frame Data' earlier
|
||||||
|
frame_params.alpha = alpha_data
|
||||||
|
else if subchunk.tag == "VP8 " OR subchunk.tag == "VP8L":
|
||||||
|
assert bitstream subchunks not found in 'Frame Data' earlier
|
||||||
|
frame_params.bitstream = bitstream_data
|
||||||
|
render frame with frame_params.alpha and frame_params.bitstream
|
||||||
|
on canvas with top-left corner at (frame_params.frameX,
|
||||||
|
frame_params.frameY), using Blending method
|
||||||
|
frame_params.blendingMethod.
|
||||||
|
canvas contains the decoded image.
|
||||||
|
Show the contents of the canvas for
|
||||||
|
frame_params.frameDuration * 1 ms.
|
||||||
|
dispose_method = frame_params.disposeMethod
|
||||||
|
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
||||||
|
|
||||||
|
|
||||||
|
Example File Layouts
|
||||||
|
--------------------
|
||||||
|
|
||||||
|
A lossy-encoded image with alpha may look as follows:
|
||||||
|
|
||||||
|
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
||||||
|
RIFF/WEBP
|
||||||
|
+- VP8X (descriptions of features used)
|
||||||
|
+- ALPH (alpha bitstream)
|
||||||
|
+- VP8 (bitstream)
|
||||||
|
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
||||||
|
|
||||||
|
A lossless-encoded image may look as follows:
|
||||||
|
|
||||||
|
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
||||||
|
RIFF/WEBP
|
||||||
|
+- VP8X (descriptions of features used)
|
||||||
|
+- XYZW (unknown chunk)
|
||||||
|
+- VP8L (lossless bitstream)
|
||||||
|
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
||||||
|
|
||||||
|
A lossless image with an ICC profile and XMP metadata may
|
||||||
|
look as follows:
|
||||||
|
|
||||||
|
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
||||||
|
RIFF/WEBP
|
||||||
|
+- VP8X (descriptions of features used)
|
||||||
|
+- ICCP (color profile)
|
||||||
|
+- VP8L (lossless bitstream)
|
||||||
|
+- XMP (metadata)
|
||||||
|
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
||||||
|
|
||||||
|
An animated image with Exif metadata may look as follows:
|
||||||
|
|
||||||
|
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
||||||
|
RIFF/WEBP
|
||||||
|
+- VP8X (descriptions of features used)
|
||||||
|
+- ANIM (global animation parameters)
|
||||||
|
+- ANMF (frame1 parameters + data)
|
||||||
|
+- ANMF (frame2 parameters + data)
|
||||||
|
+- ANMF (frame3 parameters + data)
|
||||||
|
+- ANMF (frame4 parameters + data)
|
||||||
|
+- EXIF (metadata)
|
||||||
|
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
||||||
|
|
||||||
|
[webpllspec]: https://chromium.googlesource.com/webm/libwebp/+/HEAD/doc/webp-lossless-bitstream-spec.txt
|
||||||
|
[iccspec]: https://www.color.org/icc_specs2.xalter
|
||||||
|
[metadata]: https://web.archive.org/web/20180919181934/http://www.metadataworkinggroup.org/pdf/mwg_guidance.pdf
|
||||||
|
[rec601]: https://www.itu.int/rec/R-REC-BT.601
|
||||||
|
[rfc 1166]: https://datatracker.ietf.org/doc/html/rfc1166
|
||||||
|
[rfc 2119]: https://datatracker.ietf.org/doc/html/rfc2119
|
||||||
|
[rfc 6386]: https://datatracker.ietf.org/doc/html/rfc6386
|
||||||
|
[rfc 8174]: https://datatracker.ietf.org/doc/html/rfc8174
|
1155
doc/webp-lossless-bitstream-spec.txt
Normal file
1155
doc/webp-lossless-bitstream-spec.txt
Normal file
File diff suppressed because it is too large
Load Diff
96
examples/Android.mk
Normal file
96
examples/Android.mk
Normal file
@ -0,0 +1,96 @@
|
|||||||
|
# Ignore this file during non-NDK builds.
|
||||||
|
ifdef NDK_ROOT
|
||||||
|
LOCAL_PATH := $(call my-dir)
|
||||||
|
|
||||||
|
################################################################################
|
||||||
|
# libexample_util
|
||||||
|
|
||||||
|
include $(CLEAR_VARS)
|
||||||
|
|
||||||
|
LOCAL_SRC_FILES := \
|
||||||
|
example_util.c \
|
||||||
|
|
||||||
|
LOCAL_CFLAGS := $(WEBP_CFLAGS)
|
||||||
|
LOCAL_C_INCLUDES := $(LOCAL_PATH)/../src
|
||||||
|
|
||||||
|
LOCAL_MODULE := example_util
|
||||||
|
|
||||||
|
include $(BUILD_STATIC_LIBRARY)
|
||||||
|
|
||||||
|
################################################################################
|
||||||
|
# cwebp
|
||||||
|
|
||||||
|
include $(CLEAR_VARS)
|
||||||
|
|
||||||
|
# Note: to enable jpeg/png encoding the sources from AOSP can be used with
|
||||||
|
# minor modification to their Android.mk files.
|
||||||
|
LOCAL_SRC_FILES := \
|
||||||
|
cwebp.c \
|
||||||
|
|
||||||
|
LOCAL_CFLAGS := $(WEBP_CFLAGS)
|
||||||
|
LOCAL_STATIC_LIBRARIES := example_util imageio_util imagedec webpdemux webp
|
||||||
|
|
||||||
|
LOCAL_MODULE := cwebp
|
||||||
|
|
||||||
|
include $(BUILD_EXECUTABLE)
|
||||||
|
|
||||||
|
################################################################################
|
||||||
|
# dwebp
|
||||||
|
|
||||||
|
include $(CLEAR_VARS)
|
||||||
|
|
||||||
|
LOCAL_SRC_FILES := \
|
||||||
|
dwebp.c \
|
||||||
|
|
||||||
|
LOCAL_CFLAGS := $(WEBP_CFLAGS)
|
||||||
|
LOCAL_STATIC_LIBRARIES := example_util imagedec imageenc webpdemux webp
|
||||||
|
LOCAL_MODULE := dwebp
|
||||||
|
|
||||||
|
include $(BUILD_EXECUTABLE)
|
||||||
|
|
||||||
|
################################################################################
|
||||||
|
# webpmux
|
||||||
|
|
||||||
|
include $(CLEAR_VARS)
|
||||||
|
|
||||||
|
LOCAL_SRC_FILES := \
|
||||||
|
webpmux.c \
|
||||||
|
|
||||||
|
LOCAL_CFLAGS := $(WEBP_CFLAGS)
|
||||||
|
LOCAL_STATIC_LIBRARIES := example_util imageio_util webpmux webp
|
||||||
|
|
||||||
|
LOCAL_MODULE := webpmux_example
|
||||||
|
|
||||||
|
include $(BUILD_EXECUTABLE)
|
||||||
|
|
||||||
|
################################################################################
|
||||||
|
# img2webp
|
||||||
|
|
||||||
|
include $(CLEAR_VARS)
|
||||||
|
|
||||||
|
LOCAL_SRC_FILES := \
|
||||||
|
img2webp.c \
|
||||||
|
|
||||||
|
LOCAL_CFLAGS := $(WEBP_CFLAGS)
|
||||||
|
LOCAL_STATIC_LIBRARIES := example_util imageio_util imagedec webpmux webpdemux \
|
||||||
|
webp
|
||||||
|
|
||||||
|
LOCAL_MODULE := img2webp_example
|
||||||
|
|
||||||
|
include $(BUILD_EXECUTABLE)
|
||||||
|
|
||||||
|
################################################################################
|
||||||
|
# webpinfo
|
||||||
|
|
||||||
|
include $(CLEAR_VARS)
|
||||||
|
|
||||||
|
LOCAL_SRC_FILES := \
|
||||||
|
webpinfo.c \
|
||||||
|
|
||||||
|
LOCAL_CFLAGS := $(WEBP_CFLAGS)
|
||||||
|
LOCAL_STATIC_LIBRARIES := example_util imageio_util webp
|
||||||
|
|
||||||
|
LOCAL_MODULE := webpinfo_example
|
||||||
|
|
||||||
|
include $(BUILD_EXECUTABLE)
|
||||||
|
endif # NDK_ROOT
|
119
examples/Makefile.am
Normal file
119
examples/Makefile.am
Normal file
@ -0,0 +1,119 @@
|
|||||||
|
AM_CPPFLAGS += -I$(top_builddir)/src -I$(top_srcdir)/src
|
||||||
|
|
||||||
|
bin_PROGRAMS =
|
||||||
|
if BUILD_DEMUX
|
||||||
|
bin_PROGRAMS += dwebp cwebp
|
||||||
|
endif
|
||||||
|
if BUILD_ANIMDIFF
|
||||||
|
noinst_PROGRAMS = anim_diff anim_dump
|
||||||
|
endif
|
||||||
|
if BUILD_GIF2WEBP
|
||||||
|
bin_PROGRAMS += gif2webp
|
||||||
|
endif
|
||||||
|
if BUILD_IMG2WEBP
|
||||||
|
bin_PROGRAMS += img2webp
|
||||||
|
endif
|
||||||
|
if BUILD_MUX
|
||||||
|
bin_PROGRAMS += webpmux
|
||||||
|
endif
|
||||||
|
if BUILD_VWEBP
|
||||||
|
bin_PROGRAMS += vwebp
|
||||||
|
endif
|
||||||
|
if BUILD_WEBPINFO
|
||||||
|
bin_PROGRAMS += webpinfo
|
||||||
|
endif
|
||||||
|
|
||||||
|
noinst_LTLIBRARIES = libexample_util.la
|
||||||
|
|
||||||
|
libexample_util_la_SOURCES = example_util.c example_util.h
|
||||||
|
libexample_util_la_LIBADD = ../src/libwebp.la
|
||||||
|
|
||||||
|
anim_diff_SOURCES = anim_diff.c anim_util.c anim_util.h gifdec.c gifdec.h
|
||||||
|
anim_diff_CPPFLAGS = $(AM_CPPFLAGS) $(GIF_INCLUDES)
|
||||||
|
anim_diff_LDADD =
|
||||||
|
anim_diff_LDADD += ../src/demux/libwebpdemux.la
|
||||||
|
anim_diff_LDADD += libexample_util.la
|
||||||
|
anim_diff_LDADD += ../imageio/libimageio_util.la
|
||||||
|
anim_diff_LDADD += $(GIF_LIBS) -lm
|
||||||
|
|
||||||
|
anim_dump_SOURCES = anim_dump.c anim_util.c anim_util.h gifdec.c gifdec.h
|
||||||
|
anim_dump_CPPFLAGS = $(AM_CPPFLAGS) $(PNG_INCLUDES)
|
||||||
|
anim_dump_CPPFLAGS += $(GIF_INCLUDES)
|
||||||
|
anim_dump_LDADD =
|
||||||
|
anim_dump_LDADD += ../src/demux/libwebpdemux.la
|
||||||
|
anim_dump_LDADD += libexample_util.la
|
||||||
|
anim_dump_LDADD += ../imageio/libimageio_util.la
|
||||||
|
anim_dump_LDADD += ../imageio/libimageenc.la
|
||||||
|
anim_dump_LDADD += $(PNG_LIBS) $(GIF_LIBS) $(TIFF_LIBS) -lm
|
||||||
|
|
||||||
|
cwebp_SOURCES = cwebp.c stopwatch.h
|
||||||
|
cwebp_CPPFLAGS = $(AM_CPPFLAGS) -I$(top_srcdir)
|
||||||
|
cwebp_LDADD =
|
||||||
|
cwebp_LDADD += libexample_util.la
|
||||||
|
cwebp_LDADD += ../imageio/libimageio_util.la
|
||||||
|
cwebp_LDADD += ../imageio/libimagedec.la
|
||||||
|
cwebp_LDADD += ../src/libwebp.la
|
||||||
|
cwebp_LDADD += $(JPEG_LIBS) $(PNG_LIBS) $(TIFF_LIBS)
|
||||||
|
|
||||||
|
dwebp_SOURCES = dwebp.c stopwatch.h
|
||||||
|
dwebp_CPPFLAGS = $(AM_CPPFLAGS)
|
||||||
|
dwebp_CPPFLAGS += $(JPEG_INCLUDES) $(PNG_INCLUDES)
|
||||||
|
dwebp_LDADD =
|
||||||
|
dwebp_LDADD += libexample_util.la
|
||||||
|
dwebp_LDADD += ../imageio/libimagedec.la
|
||||||
|
dwebp_LDADD += ../imageio/libimageenc.la
|
||||||
|
dwebp_LDADD += ../imageio/libimageio_util.la
|
||||||
|
dwebp_LDADD += ../src/libwebp.la
|
||||||
|
dwebp_LDADD +=$(PNG_LIBS) $(JPEG_LIBS)
|
||||||
|
|
||||||
|
gif2webp_SOURCES = gif2webp.c gifdec.c gifdec.h
|
||||||
|
gif2webp_CPPFLAGS = $(AM_CPPFLAGS) $(GIF_INCLUDES)
|
||||||
|
gif2webp_LDADD =
|
||||||
|
gif2webp_LDADD += libexample_util.la
|
||||||
|
gif2webp_LDADD += ../imageio/libimageio_util.la
|
||||||
|
gif2webp_LDADD += ../src/mux/libwebpmux.la
|
||||||
|
gif2webp_LDADD += ../src/libwebp.la
|
||||||
|
gif2webp_LDADD += $(GIF_LIBS)
|
||||||
|
|
||||||
|
vwebp_SOURCES = vwebp.c
|
||||||
|
vwebp_CPPFLAGS = $(AM_CPPFLAGS) $(GL_INCLUDES)
|
||||||
|
vwebp_LDADD =
|
||||||
|
vwebp_LDADD += libexample_util.la
|
||||||
|
vwebp_LDADD += ../imageio/libimageio_util.la
|
||||||
|
vwebp_LDADD += ../src/demux/libwebpdemux.la
|
||||||
|
vwebp_LDADD += $(GL_LIBS)
|
||||||
|
|
||||||
|
webpmux_SOURCES = webpmux.c
|
||||||
|
webpmux_CPPFLAGS = $(AM_CPPFLAGS)
|
||||||
|
webpmux_LDADD =
|
||||||
|
webpmux_LDADD += libexample_util.la
|
||||||
|
webpmux_LDADD += ../imageio/libimageio_util.la
|
||||||
|
webpmux_LDADD += ../src/mux/libwebpmux.la
|
||||||
|
webpmux_LDADD += ../src/libwebp.la
|
||||||
|
|
||||||
|
img2webp_SOURCES = img2webp.c
|
||||||
|
img2webp_CPPFLAGS = $(AM_CPPFLAGS) -I$(top_srcdir)
|
||||||
|
img2webp_LDADD =
|
||||||
|
img2webp_LDADD += libexample_util.la
|
||||||
|
img2webp_LDADD += ../imageio/libimageio_util.la
|
||||||
|
img2webp_LDADD += ../imageio/libimagedec.la
|
||||||
|
img2webp_LDADD += ../src/mux/libwebpmux.la
|
||||||
|
img2webp_LDADD += ../src/libwebp.la
|
||||||
|
img2webp_LDADD += $(PNG_LIBS) $(JPEG_LIBS) $(TIFF_LIBS)
|
||||||
|
|
||||||
|
webpinfo_SOURCES = webpinfo.c
|
||||||
|
webpinfo_CPPFLAGS = $(AM_CPPFLAGS)
|
||||||
|
webpinfo_LDADD =
|
||||||
|
webpinfo_LDADD += libexample_util.la
|
||||||
|
webpinfo_LDADD += ../imageio/libimageio_util.la
|
||||||
|
webpinfo_LDADD += ../src/libwebp.la
|
||||||
|
|
||||||
|
if BUILD_LIBWEBPDECODER
|
||||||
|
anim_diff_LDADD += ../src/libwebpdecoder.la
|
||||||
|
anim_dump_LDADD += ../src/libwebpdecoder.la
|
||||||
|
vwebp_LDADD += ../src/libwebpdecoder.la
|
||||||
|
else
|
||||||
|
anim_diff_LDADD += ../src/libwebp.la
|
||||||
|
anim_dump_LDADD += ../src/libwebp.la
|
||||||
|
vwebp_LDADD += ../src/libwebp.la
|
||||||
|
endif
|
317
examples/anim_diff.c
Normal file
317
examples/anim_diff.c
Normal file
@ -0,0 +1,317 @@
|
|||||||
|
// Copyright 2015 Google Inc. All Rights Reserved.
|
||||||
|
//
|
||||||
|
// Use of this source code is governed by a BSD-style license
|
||||||
|
// that can be found in the COPYING file in the root of the source
|
||||||
|
// tree. An additional intellectual property rights grant can be found
|
||||||
|
// in the file PATENTS. All contributing project authors may
|
||||||
|
// be found in the AUTHORS file in the root of the source tree.
|
||||||
|
// -----------------------------------------------------------------------------
|
||||||
|
//
|
||||||
|
// Checks if given pair of animated GIF/WebP images are identical:
|
||||||
|
// That is: their reconstructed canvases match pixel-by-pixel and their other
|
||||||
|
// animation properties (loop count etc) also match.
|
||||||
|
//
|
||||||
|
// example: anim_diff foo.gif bar.webp
|
||||||
|
|
||||||
|
#include <assert.h>
|
||||||
|
#include <limits.h>
|
||||||
|
#include <stdio.h>
|
||||||
|
#include <stdlib.h> // for 'strtod'.
|
||||||
|
#include <string.h> // for 'strcmp'.
|
||||||
|
|
||||||
|
#include "./anim_util.h"
|
||||||
|
#include "./example_util.h"
|
||||||
|
#include "./unicode.h"
|
||||||
|
|
||||||
|
#if defined(_MSC_VER) && _MSC_VER < 1900
|
||||||
|
#define snprintf _snprintf
|
||||||
|
#endif
|
||||||
|
|
||||||
|
// Returns true if 'a + b' will overflow.
|
||||||
|
static int AdditionWillOverflow(int a, int b) {
|
||||||
|
return (b > 0) && (a > INT_MAX - b);
|
||||||
|
}
|
||||||
|
|
||||||
|
static int FramesAreEqual(const uint8_t* const rgba1,
|
||||||
|
const uint8_t* const rgba2, int width, int height) {
|
||||||
|
const int stride = width * 4; // Always true for 'DecodedFrame.rgba'.
|
||||||
|
return !memcmp(rgba1, rgba2, stride * height);
|
||||||
|
}
|
||||||
|
|
||||||
|
static WEBP_INLINE int PixelsAreSimilar(uint32_t src, uint32_t dst,
|
||||||
|
int max_allowed_diff) {
|
||||||
|
const int src_a = (src >> 24) & 0xff;
|
||||||
|
const int src_r = (src >> 16) & 0xff;
|
||||||
|
const int src_g = (src >> 8) & 0xff;
|
||||||
|
const int src_b = (src >> 0) & 0xff;
|
||||||
|
const int dst_a = (dst >> 24) & 0xff;
|
||||||
|
const int dst_r = (dst >> 16) & 0xff;
|
||||||
|
const int dst_g = (dst >> 8) & 0xff;
|
||||||
|
const int dst_b = (dst >> 0) & 0xff;
|
||||||
|
|
||||||
|
return (abs(src_r * src_a - dst_r * dst_a) <= (max_allowed_diff * 255)) &&
|
||||||
|
(abs(src_g * src_a - dst_g * dst_a) <= (max_allowed_diff * 255)) &&
|
||||||
|
(abs(src_b * src_a - dst_b * dst_a) <= (max_allowed_diff * 255)) &&
|
||||||
|
(abs(src_a - dst_a) <= max_allowed_diff);
|
||||||
|
}
|
||||||
|
|
||||||
|
static int FramesAreSimilar(const uint8_t* const rgba1,
|
||||||
|
const uint8_t* const rgba2,
|
||||||
|
int width, int height, int max_allowed_diff) {
|
||||||
|
int i, j;
|
||||||
|
assert(max_allowed_diff > 0);
|
||||||
|
for (j = 0; j < height; ++j) {
|
||||||
|
for (i = 0; i < width; ++i) {
|
||||||
|
const int stride = width * 4;
|
||||||
|
const size_t offset = j * stride + i;
|
||||||
|
if (!PixelsAreSimilar(rgba1[offset], rgba2[offset], max_allowed_diff)) {
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
return 1;
|
||||||
|
}
|
||||||
|
|
||||||
|
// Minimize number of frames by combining successive frames that have at max
|
||||||
|
// 'max_diff' difference per channel between corresponding pixels.
|
||||||
|
static void MinimizeAnimationFrames(AnimatedImage* const img, int max_diff) {
|
||||||
|
uint32_t i;
|
||||||
|
for (i = 1; i < img->num_frames; ++i) {
|
||||||
|
DecodedFrame* const frame1 = &img->frames[i - 1];
|
||||||
|
DecodedFrame* const frame2 = &img->frames[i];
|
||||||
|
const uint8_t* const rgba1 = frame1->rgba;
|
||||||
|
const uint8_t* const rgba2 = frame2->rgba;
|
||||||
|
int should_merge_frames = 0;
|
||||||
|
// If merging frames will result in integer overflow for 'duration',
|
||||||
|
// skip merging.
|
||||||
|
if (AdditionWillOverflow(frame1->duration, frame2->duration)) continue;
|
||||||
|
if (max_diff > 0) {
|
||||||
|
should_merge_frames = FramesAreSimilar(rgba1, rgba2, img->canvas_width,
|
||||||
|
img->canvas_height, max_diff);
|
||||||
|
} else {
|
||||||
|
should_merge_frames =
|
||||||
|
FramesAreEqual(rgba1, rgba2, img->canvas_width, img->canvas_height);
|
||||||
|
}
|
||||||
|
if (should_merge_frames) { // Merge 'i+1'th frame into 'i'th frame.
|
||||||
|
frame1->duration += frame2->duration;
|
||||||
|
if (i + 1 < img->num_frames) {
|
||||||
|
memmove(&img->frames[i], &img->frames[i + 1],
|
||||||
|
(img->num_frames - i - 1) * sizeof(*img->frames));
|
||||||
|
}
|
||||||
|
--img->num_frames;
|
||||||
|
--i;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
static int CompareValues(uint32_t a, uint32_t b, const char* output_str) {
|
||||||
|
if (a != b) {
|
||||||
|
fprintf(stderr, "%s: %d vs %d\n", output_str, a, b);
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
return 1;
|
||||||
|
}
|
||||||
|
|
||||||
|
static int CompareBackgroundColor(uint32_t bg1, uint32_t bg2, int premultiply) {
|
||||||
|
if (premultiply) {
|
||||||
|
const int alpha1 = (bg1 >> 24) & 0xff;
|
||||||
|
const int alpha2 = (bg2 >> 24) & 0xff;
|
||||||
|
if (alpha1 == 0 && alpha2 == 0) return 1;
|
||||||
|
}
|
||||||
|
if (bg1 != bg2) {
|
||||||
|
fprintf(stderr, "Background color mismatch: 0x%08x vs 0x%08x\n",
|
||||||
|
bg1, bg2);
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
return 1;
|
||||||
|
}
|
||||||
|
|
||||||
|
// Note: As long as frame durations and reconstructed frames are identical, it
|
||||||
|
// is OK for other aspects like offsets, dispose/blend method to vary.
|
||||||
|
static int CompareAnimatedImagePair(const AnimatedImage* const img1,
|
||||||
|
const AnimatedImage* const img2,
|
||||||
|
int premultiply,
|
||||||
|
double min_psnr) {
|
||||||
|
int ok = 1;
|
||||||
|
const int is_multi_frame_image = (img1->num_frames > 1);
|
||||||
|
uint32_t i;
|
||||||
|
|
||||||
|
ok = CompareValues(img1->canvas_width, img2->canvas_width,
|
||||||
|
"Canvas width mismatch") && ok;
|
||||||
|
ok = CompareValues(img1->canvas_height, img2->canvas_height,
|
||||||
|
"Canvas height mismatch") && ok;
|
||||||
|
ok = CompareValues(img1->num_frames, img2->num_frames,
|
||||||
|
"Frame count mismatch") && ok;
|
||||||
|
if (!ok) return 0; // These are fatal failures, can't proceed.
|
||||||
|
|
||||||
|
if (is_multi_frame_image) { // Checks relevant for multi-frame images only.
|
||||||
|
int max_loop_count_workaround = 0;
|
||||||
|
// Transcodes to webp increase the gif loop count by 1 for compatibility.
|
||||||
|
// When the gif has the maximum value the webp value will be off by one.
|
||||||
|
if ((img1->format == ANIM_GIF && img1->loop_count == 65536 &&
|
||||||
|
img2->format == ANIM_WEBP && img2->loop_count == 65535) ||
|
||||||
|
(img1->format == ANIM_WEBP && img1->loop_count == 65535 &&
|
||||||
|
img2->format == ANIM_GIF && img2->loop_count == 65536)) {
|
||||||
|
max_loop_count_workaround = 1;
|
||||||
|
}
|
||||||
|
ok = (max_loop_count_workaround ||
|
||||||
|
CompareValues(img1->loop_count, img2->loop_count,
|
||||||
|
"Loop count mismatch")) && ok;
|
||||||
|
ok = CompareBackgroundColor(img1->bgcolor, img2->bgcolor,
|
||||||
|
premultiply) && ok;
|
||||||
|
}
|
||||||
|
|
||||||
|
for (i = 0; i < img1->num_frames; ++i) {
|
||||||
|
// Pixel-by-pixel comparison.
|
||||||
|
const uint8_t* const rgba1 = img1->frames[i].rgba;
|
||||||
|
const uint8_t* const rgba2 = img2->frames[i].rgba;
|
||||||
|
int max_diff;
|
||||||
|
double psnr;
|
||||||
|
if (is_multi_frame_image) { // Check relevant for multi-frame images only.
|
||||||
|
const char format[] = "Frame #%d, duration mismatch";
|
||||||
|
char tmp[sizeof(format) + 8];
|
||||||
|
ok = ok && (snprintf(tmp, sizeof(tmp), format, i) >= 0);
|
||||||
|
ok = ok && CompareValues(img1->frames[i].duration,
|
||||||
|
img2->frames[i].duration, tmp);
|
||||||
|
}
|
||||||
|
GetDiffAndPSNR(rgba1, rgba2, img1->canvas_width, img1->canvas_height,
|
||||||
|
premultiply, &max_diff, &psnr);
|
||||||
|
if (min_psnr > 0.) {
|
||||||
|
if (psnr < min_psnr) {
|
||||||
|
fprintf(stderr, "Frame #%d, psnr = %.2lf (min_psnr = %f)\n", i,
|
||||||
|
psnr, min_psnr);
|
||||||
|
ok = 0;
|
||||||
|
}
|
||||||
|
} else {
|
||||||
|
if (max_diff != 0) {
|
||||||
|
fprintf(stderr, "Frame #%d, max pixel diff: %d\n", i, max_diff);
|
||||||
|
ok = 0;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
return ok;
|
||||||
|
}
|
||||||
|
|
||||||
|
static void Help(void) {
|
||||||
|
printf("Usage: anim_diff <image1> <image2> [options]\n");
|
||||||
|
printf("\nOptions:\n");
|
||||||
|
printf(" -dump_frames <folder> dump decoded frames in PAM format\n");
|
||||||
|
printf(" -min_psnr <float> ... minimum per-frame PSNR\n");
|
||||||
|
printf(" -raw_comparison ..... if this flag is not used, RGB is\n");
|
||||||
|
printf(" premultiplied before comparison\n");
|
||||||
|
printf(" -max_diff <int> ..... maximum allowed difference per channel\n"
|
||||||
|
" between corresponding pixels in subsequent\n"
|
||||||
|
" frames\n");
|
||||||
|
printf(" -h .................. this help\n");
|
||||||
|
printf(" -version ............ print version number and exit\n");
|
||||||
|
}
|
||||||
|
|
||||||
|
int main(int argc, const char* argv[]) {
|
||||||
|
int return_code = -1;
|
||||||
|
int dump_frames = 0;
|
||||||
|
const char* dump_folder = NULL;
|
||||||
|
double min_psnr = 0.;
|
||||||
|
int got_input1 = 0;
|
||||||
|
int got_input2 = 0;
|
||||||
|
int premultiply = 1;
|
||||||
|
int max_diff = 0;
|
||||||
|
int i, c;
|
||||||
|
const char* files[2] = { NULL, NULL };
|
||||||
|
AnimatedImage images[2];
|
||||||
|
|
||||||
|
INIT_WARGV(argc, argv);
|
||||||
|
|
||||||
|
for (c = 1; c < argc; ++c) {
|
||||||
|
int parse_error = 0;
|
||||||
|
if (!strcmp(argv[c], "-dump_frames")) {
|
||||||
|
if (c < argc - 1) {
|
||||||
|
dump_frames = 1;
|
||||||
|
dump_folder = (const char*)GET_WARGV(argv, ++c);
|
||||||
|
} else {
|
||||||
|
parse_error = 1;
|
||||||
|
}
|
||||||
|
} else if (!strcmp(argv[c], "-min_psnr")) {
|
||||||
|
if (c < argc - 1) {
|
||||||
|
min_psnr = ExUtilGetFloat(argv[++c], &parse_error);
|
||||||
|
} else {
|
||||||
|
parse_error = 1;
|
||||||
|
}
|
||||||
|
} else if (!strcmp(argv[c], "-raw_comparison")) {
|
||||||
|
premultiply = 0;
|
||||||
|
} else if (!strcmp(argv[c], "-max_diff")) {
|
||||||
|
if (c < argc - 1) {
|
||||||
|
max_diff = ExUtilGetInt(argv[++c], 0, &parse_error);
|
||||||
|
} else {
|
||||||
|
parse_error = 1;
|
||||||
|
}
|
||||||
|
} else if (!strcmp(argv[c], "-h") || !strcmp(argv[c], "-help")) {
|
||||||
|
Help();
|
||||||
|
FREE_WARGV_AND_RETURN(0);
|
||||||
|
} else if (!strcmp(argv[c], "-version")) {
|
||||||
|
int dec_version, demux_version;
|
||||||
|
GetAnimatedImageVersions(&dec_version, &demux_version);
|
||||||
|
printf("WebP Decoder version: %d.%d.%d\nWebP Demux version: %d.%d.%d\n",
|
||||||
|
(dec_version >> 16) & 0xff, (dec_version >> 8) & 0xff,
|
||||||
|
(dec_version >> 0) & 0xff,
|
||||||
|
(demux_version >> 16) & 0xff, (demux_version >> 8) & 0xff,
|
||||||
|
(demux_version >> 0) & 0xff);
|
||||||
|
FREE_WARGV_AND_RETURN(0);
|
||||||
|
} else {
|
||||||
|
if (!got_input1) {
|
||||||
|
files[0] = (const char*)GET_WARGV(argv, c);
|
||||||
|
got_input1 = 1;
|
||||||
|
} else if (!got_input2) {
|
||||||
|
files[1] = (const char*)GET_WARGV(argv, c);
|
||||||
|
got_input2 = 1;
|
||||||
|
} else {
|
||||||
|
parse_error = 1;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
if (parse_error) {
|
||||||
|
Help();
|
||||||
|
FREE_WARGV_AND_RETURN(-1);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
if (argc < 3) {
|
||||||
|
Help();
|
||||||
|
FREE_WARGV_AND_RETURN(-1);
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
if (!got_input2) {
|
||||||
|
Help();
|
||||||
|
FREE_WARGV_AND_RETURN(-1);
|
||||||
|
}
|
||||||
|
|
||||||
|
if (dump_frames) {
|
||||||
|
WPRINTF("Dumping decoded frames in: %s\n", (const W_CHAR*)dump_folder);
|
||||||
|
}
|
||||||
|
|
||||||
|
memset(images, 0, sizeof(images));
|
||||||
|
for (i = 0; i < 2; ++i) {
|
||||||
|
WPRINTF("Decoding file: %s\n", (const W_CHAR*)files[i]);
|
||||||
|
if (!ReadAnimatedImage(files[i], &images[i], dump_frames, dump_folder)) {
|
||||||
|
WFPRINTF(stderr, "Error decoding file: %s\n Aborting.\n",
|
||||||
|
(const W_CHAR*)files[i]);
|
||||||
|
return_code = -2;
|
||||||
|
goto End;
|
||||||
|
} else {
|
||||||
|
MinimizeAnimationFrames(&images[i], max_diff);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
if (!CompareAnimatedImagePair(&images[0], &images[1],
|
||||||
|
premultiply, min_psnr)) {
|
||||||
|
WFPRINTF(stderr, "\nFiles %s and %s differ.\n", (const W_CHAR*)files[0],
|
||||||
|
(const W_CHAR*)files[1]);
|
||||||
|
return_code = -3;
|
||||||
|
} else {
|
||||||
|
WPRINTF("\nFiles %s and %s are identical.\n", (const W_CHAR*)files[0],
|
||||||
|
(const W_CHAR*)files[1]);
|
||||||
|
return_code = 0;
|
||||||
|
}
|
||||||
|
End:
|
||||||
|
ClearAnimatedImage(&images[0]);
|
||||||
|
ClearAnimatedImage(&images[1]);
|
||||||
|
FREE_WARGV_AND_RETURN(return_code);
|
||||||
|
}
|
121
examples/anim_dump.c
Normal file
121
examples/anim_dump.c
Normal file
@ -0,0 +1,121 @@
|
|||||||
|
// Copyright 2017 Google Inc. All Rights Reserved.
|
||||||
|
//
|
||||||
|
// Use of this source code is governed by a BSD-style license
|
||||||
|
// that can be found in the COPYING file in the root of the source
|
||||||
|
// tree. An additional intellectual property rights grant can be found
|
||||||
|
// in the file PATENTS. All contributing project authors may
|
||||||
|
// be found in the AUTHORS file in the root of the source tree.
|
||||||
|
// -----------------------------------------------------------------------------
|
||||||
|
//
|
||||||
|
// Decodes an animated WebP file and dumps the decoded frames as PNG or TIFF.
|
||||||
|
//
|
||||||
|
// Author: Skal (pascal.massimino@gmail.com)
|
||||||
|
|
||||||
|
#include <stdio.h>
|
||||||
|
#include <string.h> // for 'strcmp'.
|
||||||
|
|
||||||
|
#include "./anim_util.h"
|
||||||
|
#include "webp/decode.h"
|
||||||
|
#include "../imageio/image_enc.h"
|
||||||
|
#include "./unicode.h"
|
||||||
|
|
||||||
|
#if defined(_MSC_VER) && _MSC_VER < 1900
|
||||||
|
#define snprintf _snprintf
|
||||||
|
#endif
|
||||||
|
|
||||||
|
static void Help(void) {
|
||||||
|
printf("Usage: anim_dump [options] files...\n");
|
||||||
|
printf("\nOptions:\n");
|
||||||
|
printf(" -folder <string> .... dump folder (default: '.')\n");
|
||||||
|
printf(" -prefix <string> .... prefix for dumped frames "
|
||||||
|
"(default: 'dump_')\n");
|
||||||
|
printf(" -tiff ............... save frames as TIFF\n");
|
||||||
|
printf(" -pam ................ save frames as PAM\n");
|
||||||
|
printf(" -h .................. this help\n");
|
||||||
|
printf(" -version ............ print version number and exit\n");
|
||||||
|
}
|
||||||
|
|
||||||
|
int main(int argc, const char* argv[]) {
|
||||||
|
int error = 0;
|
||||||
|
const W_CHAR* dump_folder = TO_W_CHAR(".");
|
||||||
|
const W_CHAR* prefix = TO_W_CHAR("dump_");
|
||||||
|
const W_CHAR* suffix = TO_W_CHAR("png");
|
||||||
|
WebPOutputFileFormat format = PNG;
|
||||||
|
int c;
|
||||||
|
|
||||||
|
INIT_WARGV(argc, argv);
|
||||||
|
|
||||||
|
if (argc < 2) {
|
||||||
|
Help();
|
||||||
|
FREE_WARGV_AND_RETURN(-1);
|
||||||
|
}
|
||||||
|
|
||||||
|
for (c = 1; !error && c < argc; ++c) {
|
||||||
|
if (!strcmp(argv[c], "-folder")) {
|
||||||
|
if (c + 1 == argc) {
|
||||||
|
fprintf(stderr, "missing argument after option '%s'\n", argv[c]);
|
||||||
|
error = 1;
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
dump_folder = GET_WARGV(argv, ++c);
|
||||||
|
} else if (!strcmp(argv[c], "-prefix")) {
|
||||||
|
if (c + 1 == argc) {
|
||||||
|
fprintf(stderr, "missing argument after option '%s'\n", argv[c]);
|
||||||
|
error = 1;
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
prefix = GET_WARGV(argv, ++c);
|
||||||
|
} else if (!strcmp(argv[c], "-tiff")) {
|
||||||
|
format = TIFF;
|
||||||
|
suffix = TO_W_CHAR("tiff");
|
||||||
|
} else if (!strcmp(argv[c], "-pam")) {
|
||||||
|
format = PAM;
|
||||||
|
suffix = TO_W_CHAR("pam");
|
||||||
|
} else if (!strcmp(argv[c], "-h") || !strcmp(argv[c], "-help")) {
|
||||||
|
Help();
|
||||||
|
FREE_WARGV_AND_RETURN(0);
|
||||||
|
} else if (!strcmp(argv[c], "-version")) {
|
||||||
|
int dec_version, demux_version;
|
||||||
|
GetAnimatedImageVersions(&dec_version, &demux_version);
|
||||||
|
printf("WebP Decoder version: %d.%d.%d\nWebP Demux version: %d.%d.%d\n",
|
||||||
|
(dec_version >> 16) & 0xff, (dec_version >> 8) & 0xff,
|
||||||
|
(dec_version >> 0) & 0xff,
|
||||||
|
(demux_version >> 16) & 0xff, (demux_version >> 8) & 0xff,
|
||||||
|
(demux_version >> 0) & 0xff);
|
||||||
|
FREE_WARGV_AND_RETURN(0);
|
||||||
|
} else {
|
||||||
|
uint32_t i;
|
||||||
|
AnimatedImage image;
|
||||||
|
const W_CHAR* const file = GET_WARGV(argv, c);
|
||||||
|
memset(&image, 0, sizeof(image));
|
||||||
|
WPRINTF("Decoding file: %s as %s/%sxxxx.%s\n",
|
||||||
|
file, dump_folder, prefix, suffix);
|
||||||
|
if (!ReadAnimatedImage((const char*)file, &image, 0, NULL)) {
|
||||||
|
WFPRINTF(stderr, "Error decoding file: %s\n Aborting.\n", file);
|
||||||
|
error = 1;
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
for (i = 0; !error && i < image.num_frames; ++i) {
|
||||||
|
W_CHAR out_file[1024];
|
||||||
|
WebPDecBuffer buffer;
|
||||||
|
WebPInitDecBuffer(&buffer);
|
||||||
|
buffer.colorspace = MODE_RGBA;
|
||||||
|
buffer.is_external_memory = 1;
|
||||||
|
buffer.width = image.canvas_width;
|
||||||
|
buffer.height = image.canvas_height;
|
||||||
|
buffer.u.RGBA.rgba = image.frames[i].rgba;
|
||||||
|
buffer.u.RGBA.stride = buffer.width * sizeof(uint32_t);
|
||||||
|
buffer.u.RGBA.size = buffer.u.RGBA.stride * buffer.height;
|
||||||
|
WSNPRINTF(out_file, sizeof(out_file), "%s/%s%.4d.%s",
|
||||||
|
dump_folder, prefix, i, suffix);
|
||||||
|
if (!WebPSaveImage(&buffer, format, (const char*)out_file)) {
|
||||||
|
WFPRINTF(stderr, "Error while saving image '%s'\n", out_file);
|
||||||
|
error = 1;
|
||||||
|
}
|
||||||
|
WebPFreeDecBuffer(&buffer);
|
||||||
|
}
|
||||||
|
ClearAnimatedImage(&image);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
FREE_WARGV_AND_RETURN(error ? 1 : 0);
|
||||||
|
}
|
782
examples/anim_util.c
Normal file
782
examples/anim_util.c
Normal file
@ -0,0 +1,782 @@
|
|||||||
|
// Copyright 2015 Google Inc. All Rights Reserved.
|
||||||
|
//
|
||||||
|
// Use of this source code is governed by a BSD-style license
|
||||||
|
// that can be found in the COPYING file in the root of the source
|
||||||
|
// tree. An additional intellectual property rights grant can be found
|
||||||
|
// in the file PATENTS. All contributing project authors may
|
||||||
|
// be found in the AUTHORS file in the root of the source tree.
|
||||||
|
// -----------------------------------------------------------------------------
|
||||||
|
//
|
||||||
|
// Utilities for animated images
|
||||||
|
|
||||||
|
#include "./anim_util.h"
|
||||||
|
|
||||||
|
#include <assert.h>
|
||||||
|
#include <math.h>
|
||||||
|
#include <stdio.h>
|
||||||
|
#include <string.h>
|
||||||
|
|
||||||
|
#if defined(WEBP_HAVE_GIF)
|
||||||
|
#include <gif_lib.h>
|
||||||
|
#endif
|
||||||
|
#include "webp/format_constants.h"
|
||||||
|
#include "webp/decode.h"
|
||||||
|
#include "webp/demux.h"
|
||||||
|
#include "../imageio/imageio_util.h"
|
||||||
|
#include "./gifdec.h"
|
||||||
|
#include "./unicode.h"
|
||||||
|
#include "./unicode_gif.h"
|
||||||
|
|
||||||
|
#if defined(_MSC_VER) && _MSC_VER < 1900
|
||||||
|
#define snprintf _snprintf
|
||||||
|
#endif
|
||||||
|
|
||||||
|
static const int kNumChannels = 4;
|
||||||
|
|
||||||
|
// -----------------------------------------------------------------------------
|
||||||
|
// Common utilities.
|
||||||
|
|
||||||
|
#if defined(WEBP_HAVE_GIF)
|
||||||
|
// Returns true if the frame covers the full canvas.
|
||||||
|
static int IsFullFrame(int width, int height,
|
||||||
|
int canvas_width, int canvas_height) {
|
||||||
|
return (width == canvas_width && height == canvas_height);
|
||||||
|
}
|
||||||
|
#endif // WEBP_HAVE_GIF
|
||||||
|
|
||||||
|
static int CheckSizeForOverflow(uint64_t size) {
|
||||||
|
return (size == (size_t)size);
|
||||||
|
}
|
||||||
|
|
||||||
|
static int AllocateFrames(AnimatedImage* const image, uint32_t num_frames) {
|
||||||
|
uint32_t i;
|
||||||
|
uint8_t* mem = NULL;
|
||||||
|
DecodedFrame* frames = NULL;
|
||||||
|
const uint64_t rgba_size =
|
||||||
|
(uint64_t)image->canvas_width * kNumChannels * image->canvas_height;
|
||||||
|
const uint64_t total_size = (uint64_t)num_frames * rgba_size * sizeof(*mem);
|
||||||
|
const uint64_t total_frame_size = (uint64_t)num_frames * sizeof(*frames);
|
||||||
|
if (!CheckSizeForOverflow(total_size) ||
|
||||||
|
!CheckSizeForOverflow(total_frame_size)) {
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
mem = (uint8_t*)WebPMalloc((size_t)total_size);
|
||||||
|
frames = (DecodedFrame*)WebPMalloc((size_t)total_frame_size);
|
||||||
|
|
||||||
|
if (mem == NULL || frames == NULL) {
|
||||||
|
WebPFree(mem);
|
||||||
|
WebPFree(frames);
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
WebPFree(image->raw_mem);
|
||||||
|
image->num_frames = num_frames;
|
||||||
|
image->frames = frames;
|
||||||
|
for (i = 0; i < num_frames; ++i) {
|
||||||
|
frames[i].rgba = mem + i * rgba_size;
|
||||||
|
frames[i].duration = 0;
|
||||||
|
frames[i].is_key_frame = 0;
|
||||||
|
}
|
||||||
|
image->raw_mem = mem;
|
||||||
|
return 1;
|
||||||
|
}
|
||||||
|
|
||||||
|
void ClearAnimatedImage(AnimatedImage* const image) {
|
||||||
|
if (image != NULL) {
|
||||||
|
WebPFree(image->raw_mem);
|
||||||
|
WebPFree(image->frames);
|
||||||
|
image->num_frames = 0;
|
||||||
|
image->frames = NULL;
|
||||||
|
image->raw_mem = NULL;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
#if defined(WEBP_HAVE_GIF)
|
||||||
|
// Clear the canvas to transparent.
|
||||||
|
static void ZeroFillCanvas(uint8_t* rgba,
|
||||||
|
uint32_t canvas_width, uint32_t canvas_height) {
|
||||||
|
memset(rgba, 0, canvas_width * kNumChannels * canvas_height);
|
||||||
|
}
|
||||||
|
|
||||||
|
// Clear given frame rectangle to transparent.
|
||||||
|
static void ZeroFillFrameRect(uint8_t* rgba, int rgba_stride, int x_offset,
|
||||||
|
int y_offset, int width, int height) {
|
||||||
|
int j;
|
||||||
|
assert(width * kNumChannels <= rgba_stride);
|
||||||
|
rgba += y_offset * rgba_stride + x_offset * kNumChannels;
|
||||||
|
for (j = 0; j < height; ++j) {
|
||||||
|
memset(rgba, 0, width * kNumChannels);
|
||||||
|
rgba += rgba_stride;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
// Copy width * height pixels from 'src' to 'dst'.
|
||||||
|
static void CopyCanvas(const uint8_t* src, uint8_t* dst,
|
||||||
|
uint32_t width, uint32_t height) {
|
||||||
|
assert(src != NULL && dst != NULL);
|
||||||
|
memcpy(dst, src, width * kNumChannels * height);
|
||||||
|
}
|
||||||
|
|
||||||
|
// Copy pixels in the given rectangle from 'src' to 'dst' honoring the 'stride'.
|
||||||
|
static void CopyFrameRectangle(const uint8_t* src, uint8_t* dst, int stride,
|
||||||
|
int x_offset, int y_offset,
|
||||||
|
int width, int height) {
|
||||||
|
int j;
|
||||||
|
const int width_in_bytes = width * kNumChannels;
|
||||||
|
const size_t offset = y_offset * stride + x_offset * kNumChannels;
|
||||||
|
assert(width_in_bytes <= stride);
|
||||||
|
src += offset;
|
||||||
|
dst += offset;
|
||||||
|
for (j = 0; j < height; ++j) {
|
||||||
|
memcpy(dst, src, width_in_bytes);
|
||||||
|
src += stride;
|
||||||
|
dst += stride;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
#endif // WEBP_HAVE_GIF
|
||||||
|
|
||||||
|
// Canonicalize all transparent pixels to transparent black to aid comparison.
|
||||||
|
static void CleanupTransparentPixels(uint32_t* rgba,
|
||||||
|
uint32_t width, uint32_t height) {
|
||||||
|
const uint32_t* const rgba_end = rgba + width * height;
|
||||||
|
while (rgba < rgba_end) {
|
||||||
|
const uint8_t alpha = (*rgba >> 24) & 0xff;
|
||||||
|
if (alpha == 0) {
|
||||||
|
*rgba = 0;
|
||||||
|
}
|
||||||
|
++rgba;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
// Dump frame to a PAM file. Returns true on success.
|
||||||
|
static int DumpFrame(const char filename[], const char dump_folder[],
|
||||||
|
uint32_t frame_num, const uint8_t rgba[],
|
||||||
|
int canvas_width, int canvas_height) {
|
||||||
|
int ok = 0;
|
||||||
|
size_t max_len;
|
||||||
|
int y;
|
||||||
|
const W_CHAR* base_name = NULL;
|
||||||
|
W_CHAR* file_name = NULL;
|
||||||
|
FILE* f = NULL;
|
||||||
|
const char* row;
|
||||||
|
|
||||||
|
if (dump_folder == NULL) dump_folder = (const char*)TO_W_CHAR(".");
|
||||||
|
|
||||||
|
base_name = WSTRRCHR(filename, '/');
|
||||||
|
base_name = (base_name == NULL) ? (const W_CHAR*)filename : base_name + 1;
|
||||||
|
max_len = WSTRLEN(dump_folder) + 1 + WSTRLEN(base_name)
|
||||||
|
+ strlen("_frame_") + strlen(".pam") + 8;
|
||||||
|
file_name = (W_CHAR*)WebPMalloc(max_len * sizeof(*file_name));
|
||||||
|
if (file_name == NULL) goto End;
|
||||||
|
|
||||||
|
if (WSNPRINTF(file_name, max_len, "%s/%s_frame_%d.pam",
|
||||||
|
(const W_CHAR*)dump_folder, base_name, frame_num) < 0) {
|
||||||
|
fprintf(stderr, "Error while generating file name\n");
|
||||||
|
goto End;
|
||||||
|
}
|
||||||
|
|
||||||
|
f = WFOPEN(file_name, "wb");
|
||||||
|
if (f == NULL) {
|
||||||
|
WFPRINTF(stderr, "Error opening file for writing: %s\n", file_name);
|
||||||
|
ok = 0;
|
||||||
|
goto End;
|
||||||
|
}
|
||||||
|
if (fprintf(f, "P7\nWIDTH %d\nHEIGHT %d\n"
|
||||||
|
"DEPTH 4\nMAXVAL 255\nTUPLTYPE RGB_ALPHA\nENDHDR\n",
|
||||||
|
canvas_width, canvas_height) < 0) {
|
||||||
|
WFPRINTF(stderr, "Write error for file %s\n", file_name);
|
||||||
|
goto End;
|
||||||
|
}
|
||||||
|
row = (const char*)rgba;
|
||||||
|
for (y = 0; y < canvas_height; ++y) {
|
||||||
|
if (fwrite(row, canvas_width * kNumChannels, 1, f) != 1) {
|
||||||
|
WFPRINTF(stderr, "Error writing to file: %s\n", file_name);
|
||||||
|
goto End;
|
||||||
|
}
|
||||||
|
row += canvas_width * kNumChannels;
|
||||||
|
}
|
||||||
|
ok = 1;
|
||||||
|
End:
|
||||||
|
if (f != NULL) fclose(f);
|
||||||
|
WebPFree(file_name);
|
||||||
|
return ok;
|
||||||
|
}
|
||||||
|
|
||||||
|
// -----------------------------------------------------------------------------
|
||||||
|
// WebP Decoding.
|
||||||
|
|
||||||
|
// Returns true if this is a valid WebP bitstream.
|
||||||
|
static int IsWebP(const WebPData* const webp_data) {
|
||||||
|
return (WebPGetInfo(webp_data->bytes, webp_data->size, NULL, NULL) != 0);
|
||||||
|
}
|
||||||
|
|
||||||
|
// Read animated WebP bitstream 'webp_data' into 'AnimatedImage' struct.
|
||||||
|
static int ReadAnimatedWebP(const char filename[],
|
||||||
|
const WebPData* const webp_data,
|
||||||
|
AnimatedImage* const image, int dump_frames,
|
||||||
|
const char dump_folder[]) {
|
||||||
|
int ok = 0;
|
||||||
|
int dump_ok = 1;
|
||||||
|
uint32_t frame_index = 0;
|
||||||
|
int prev_frame_timestamp = 0;
|
||||||
|
WebPAnimDecoder* dec;
|
||||||
|
WebPAnimInfo anim_info;
|
||||||
|
|
||||||
|
memset(image, 0, sizeof(*image));
|
||||||
|
|
||||||
|
dec = WebPAnimDecoderNew(webp_data, NULL);
|
||||||
|
if (dec == NULL) {
|
||||||
|
WFPRINTF(stderr, "Error parsing image: %s\n", (const W_CHAR*)filename);
|
||||||
|
goto End;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (!WebPAnimDecoderGetInfo(dec, &anim_info)) {
|
||||||
|
fprintf(stderr, "Error getting global info about the animation\n");
|
||||||
|
goto End;
|
||||||
|
}
|
||||||
|
|
||||||
|
// Animation properties.
|
||||||
|
image->canvas_width = anim_info.canvas_width;
|
||||||
|
image->canvas_height = anim_info.canvas_height;
|
||||||
|
image->loop_count = anim_info.loop_count;
|
||||||
|
image->bgcolor = anim_info.bgcolor;
|
||||||
|
|
||||||
|
// Allocate frames.
|
||||||
|
if (!AllocateFrames(image, anim_info.frame_count)) goto End;
|
||||||
|
|
||||||
|
// Decode frames.
|
||||||
|
while (WebPAnimDecoderHasMoreFrames(dec)) {
|
||||||
|
DecodedFrame* curr_frame;
|
||||||
|
uint8_t* curr_rgba;
|
||||||
|
uint8_t* frame_rgba;
|
||||||
|
int timestamp;
|
||||||
|
|
||||||
|
if (!WebPAnimDecoderGetNext(dec, &frame_rgba, ×tamp)) {
|
||||||
|
fprintf(stderr, "Error decoding frame #%u\n", frame_index);
|
||||||
|
goto End;
|
||||||
|
}
|
||||||
|
assert(frame_index < anim_info.frame_count);
|
||||||
|
curr_frame = &image->frames[frame_index];
|
||||||
|
curr_rgba = curr_frame->rgba;
|
||||||
|
curr_frame->duration = timestamp - prev_frame_timestamp;
|
||||||
|
curr_frame->is_key_frame = 0; // Unused.
|
||||||
|
memcpy(curr_rgba, frame_rgba,
|
||||||
|
image->canvas_width * kNumChannels * image->canvas_height);
|
||||||
|
|
||||||
|
// Needed only because we may want to compare with GIF later.
|
||||||
|
CleanupTransparentPixels((uint32_t*)curr_rgba,
|
||||||
|
image->canvas_width, image->canvas_height);
|
||||||
|
|
||||||
|
if (dump_frames && dump_ok) {
|
||||||
|
dump_ok = DumpFrame(filename, dump_folder, frame_index, curr_rgba,
|
||||||
|
image->canvas_width, image->canvas_height);
|
||||||
|
if (!dump_ok) { // Print error once, but continue decode loop.
|
||||||
|
fprintf(stderr, "Error dumping frames to %s\n", dump_folder);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
++frame_index;
|
||||||
|
prev_frame_timestamp = timestamp;
|
||||||
|
}
|
||||||
|
ok = dump_ok;
|
||||||
|
if (ok) image->format = ANIM_WEBP;
|
||||||
|
|
||||||
|
End:
|
||||||
|
WebPAnimDecoderDelete(dec);
|
||||||
|
return ok;
|
||||||
|
}
|
||||||
|
|
||||||
|
// -----------------------------------------------------------------------------
|
||||||
|
// GIF Decoding.
|
||||||
|
|
||||||
|
#if defined(WEBP_HAVE_GIF)
|
||||||
|
|
||||||
|
// Returns true if this is a valid GIF bitstream.
|
||||||
|
static int IsGIF(const WebPData* const data) {
|
||||||
|
return data->size > GIF_STAMP_LEN &&
|
||||||
|
(!memcmp(GIF_STAMP, data->bytes, GIF_STAMP_LEN) ||
|
||||||
|
!memcmp(GIF87_STAMP, data->bytes, GIF_STAMP_LEN) ||
|
||||||
|
!memcmp(GIF89_STAMP, data->bytes, GIF_STAMP_LEN));
|
||||||
|
}
|
||||||
|
|
||||||
|
// GIFLIB_MAJOR is only defined in libgif >= 4.2.0.
|
||||||
|
#if defined(GIFLIB_MAJOR) && defined(GIFLIB_MINOR)
|
||||||
|
# define LOCAL_GIF_VERSION ((GIFLIB_MAJOR << 8) | GIFLIB_MINOR)
|
||||||
|
# define LOCAL_GIF_PREREQ(maj, min) \
|
||||||
|
(LOCAL_GIF_VERSION >= (((maj) << 8) | (min)))
|
||||||
|
#else
|
||||||
|
# define LOCAL_GIF_VERSION 0
|
||||||
|
# define LOCAL_GIF_PREREQ(maj, min) 0
|
||||||
|
#endif
|
||||||
|
|
||||||
|
#if !LOCAL_GIF_PREREQ(5, 0)
|
||||||
|
|
||||||
|
// Added in v5.0
|
||||||
|
typedef struct {
|
||||||
|
int DisposalMode;
|
||||||
|
#define DISPOSAL_UNSPECIFIED 0 // No disposal specified
|
||||||
|
#define DISPOSE_DO_NOT 1 // Leave image in place
|
||||||
|
#define DISPOSE_BACKGROUND 2 // Set area to background color
|
||||||
|
#define DISPOSE_PREVIOUS 3 // Restore to previous content
|
||||||
|
int UserInputFlag; // User confirmation required before disposal
|
||||||
|
int DelayTime; // Pre-display delay in 0.01sec units
|
||||||
|
int TransparentColor; // Palette index for transparency, -1 if none
|
||||||
|
#define NO_TRANSPARENT_COLOR -1
|
||||||
|
} GraphicsControlBlock;
|
||||||
|
|
||||||
|
static int DGifExtensionToGCB(const size_t GifExtensionLength,
|
||||||
|
const GifByteType* GifExtension,
|
||||||
|
GraphicsControlBlock* gcb) {
|
||||||
|
if (GifExtensionLength != 4) {
|
||||||
|
return GIF_ERROR;
|
||||||
|
}
|
||||||
|
gcb->DisposalMode = (GifExtension[0] >> 2) & 0x07;
|
||||||
|
gcb->UserInputFlag = (GifExtension[0] & 0x02) != 0;
|
||||||
|
gcb->DelayTime = GifExtension[1] | (GifExtension[2] << 8);
|
||||||
|
if (GifExtension[0] & 0x01) {
|
||||||
|
gcb->TransparentColor = (int)GifExtension[3];
|
||||||
|
} else {
|
||||||
|
gcb->TransparentColor = NO_TRANSPARENT_COLOR;
|
||||||
|
}
|
||||||
|
return GIF_OK;
|
||||||
|
}
|
||||||
|
|
||||||
|
static int DGifSavedExtensionToGCB(GifFileType* GifFile, int ImageIndex,
|
||||||
|
GraphicsControlBlock* gcb) {
|
||||||
|
int i;
|
||||||
|
if (ImageIndex < 0 || ImageIndex > GifFile->ImageCount - 1) {
|
||||||
|
return GIF_ERROR;
|
||||||
|
}
|
||||||
|
gcb->DisposalMode = DISPOSAL_UNSPECIFIED;
|
||||||
|
gcb->UserInputFlag = 0;
|
||||||
|
gcb->DelayTime = 0;
|
||||||
|
gcb->TransparentColor = NO_TRANSPARENT_COLOR;
|
||||||
|
|
||||||
|
for (i = 0; i < GifFile->SavedImages[ImageIndex].ExtensionBlockCount; i++) {
|
||||||
|
ExtensionBlock* ep = &GifFile->SavedImages[ImageIndex].ExtensionBlocks[i];
|
||||||
|
if (ep->Function == GRAPHICS_EXT_FUNC_CODE) {
|
||||||
|
return DGifExtensionToGCB(
|
||||||
|
ep->ByteCount, (const GifByteType*)ep->Bytes, gcb);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
return GIF_ERROR;
|
||||||
|
}
|
||||||
|
|
||||||
|
#define CONTINUE_EXT_FUNC_CODE 0x00
|
||||||
|
|
||||||
|
// Signature was changed in v5.0
|
||||||
|
#define DGifOpenFileName(a, b) DGifOpenFileName(a)
|
||||||
|
|
||||||
|
#endif // !LOCAL_GIF_PREREQ(5, 0)
|
||||||
|
|
||||||
|
// Signature changed in v5.1
|
||||||
|
#if !LOCAL_GIF_PREREQ(5, 1)
|
||||||
|
#define DGifCloseFile(a, b) DGifCloseFile(a)
|
||||||
|
#endif
|
||||||
|
|
||||||
|
static int IsKeyFrameGIF(const GifImageDesc* prev_desc, int prev_dispose,
|
||||||
|
const DecodedFrame* const prev_frame,
|
||||||
|
int canvas_width, int canvas_height) {
|
||||||
|
if (prev_frame == NULL) return 1;
|
||||||
|
if (prev_dispose == DISPOSE_BACKGROUND) {
|
||||||
|
if (IsFullFrame(prev_desc->Width, prev_desc->Height,
|
||||||
|
canvas_width, canvas_height)) {
|
||||||
|
return 1;
|
||||||
|
}
|
||||||
|
if (prev_frame->is_key_frame) return 1;
|
||||||
|
}
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
static int GetTransparentIndexGIF(GifFileType* gif) {
|
||||||
|
GraphicsControlBlock first_gcb;
|
||||||
|
memset(&first_gcb, 0, sizeof(first_gcb));
|
||||||
|
DGifSavedExtensionToGCB(gif, 0, &first_gcb);
|
||||||
|
return first_gcb.TransparentColor;
|
||||||
|
}
|
||||||
|
|
||||||
|
static uint32_t GetBackgroundColorGIF(GifFileType* gif) {
|
||||||
|
const int transparent_index = GetTransparentIndexGIF(gif);
|
||||||
|
const ColorMapObject* const color_map = gif->SColorMap;
|
||||||
|
if (transparent_index != NO_TRANSPARENT_COLOR &&
|
||||||
|
gif->SBackGroundColor == transparent_index) {
|
||||||
|
return 0x00000000; // Special case: transparent black.
|
||||||
|
} else if (color_map == NULL || color_map->Colors == NULL
|
||||||
|
|| gif->SBackGroundColor >= color_map->ColorCount) {
|
||||||
|
return 0xffffffff; // Invalid: assume white.
|
||||||
|
} else {
|
||||||
|
const GifColorType color = color_map->Colors[gif->SBackGroundColor];
|
||||||
|
return (0xffu << 24) |
|
||||||
|
(color.Red << 16) |
|
||||||
|
(color.Green << 8) |
|
||||||
|
(color.Blue << 0);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
// Find appropriate app extension and get loop count from the next extension.
|
||||||
|
// We use Chrome's interpretation of the 'loop_count' semantics:
|
||||||
|
// if not present -> loop once
|
||||||
|
// if present and loop_count == 0, return 0 ('infinite').
|
||||||
|
// if present and loop_count != 0, it's the number of *extra* loops
|
||||||
|
// so we need to return loop_count + 1 as total loop number.
|
||||||
|
static uint32_t GetLoopCountGIF(const GifFileType* const gif) {
|
||||||
|
int i;
|
||||||
|
for (i = 0; i < gif->ImageCount; ++i) {
|
||||||
|
const SavedImage* const image = &gif->SavedImages[i];
|
||||||
|
int j;
|
||||||
|
for (j = 0; (j + 1) < image->ExtensionBlockCount; ++j) {
|
||||||
|
const ExtensionBlock* const eb1 = image->ExtensionBlocks + j;
|
||||||
|
const ExtensionBlock* const eb2 = image->ExtensionBlocks + j + 1;
|
||||||
|
const char* const signature = (const char*)eb1->Bytes;
|
||||||
|
const int signature_is_ok =
|
||||||
|
(eb1->Function == APPLICATION_EXT_FUNC_CODE) &&
|
||||||
|
(eb1->ByteCount == 11) &&
|
||||||
|
(!memcmp(signature, "NETSCAPE2.0", 11) ||
|
||||||
|
!memcmp(signature, "ANIMEXTS1.0", 11));
|
||||||
|
if (signature_is_ok &&
|
||||||
|
eb2->Function == CONTINUE_EXT_FUNC_CODE && eb2->ByteCount >= 3 &&
|
||||||
|
eb2->Bytes[0] == 1) {
|
||||||
|
const uint32_t extra_loop = ((uint32_t)(eb2->Bytes[2]) << 8) +
|
||||||
|
((uint32_t)(eb2->Bytes[1]) << 0);
|
||||||
|
return (extra_loop > 0) ? extra_loop + 1 : 0;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
return 1; // Default.
|
||||||
|
}
|
||||||
|
|
||||||
|
// Get duration of 'n'th frame in milliseconds.
|
||||||
|
static int GetFrameDurationGIF(GifFileType* gif, int n) {
|
||||||
|
GraphicsControlBlock gcb;
|
||||||
|
memset(&gcb, 0, sizeof(gcb));
|
||||||
|
DGifSavedExtensionToGCB(gif, n, &gcb);
|
||||||
|
return gcb.DelayTime * 10;
|
||||||
|
}
|
||||||
|
|
||||||
|
// Returns true if frame 'target' completely covers 'covered'.
|
||||||
|
static int CoversFrameGIF(const GifImageDesc* const target,
|
||||||
|
const GifImageDesc* const covered) {
|
||||||
|
return target->Left <= covered->Left &&
|
||||||
|
covered->Left + covered->Width <= target->Left + target->Width &&
|
||||||
|
target->Top <= covered->Top &&
|
||||||
|
covered->Top + covered->Height <= target->Top + target->Height;
|
||||||
|
}
|
||||||
|
|
||||||
|
static void RemapPixelsGIF(const uint8_t* const src,
|
||||||
|
const ColorMapObject* const cmap,
|
||||||
|
int transparent_color, int len, uint8_t* dst) {
|
||||||
|
int i;
|
||||||
|
for (i = 0; i < len; ++i) {
|
||||||
|
if (src[i] != transparent_color) {
|
||||||
|
// If a pixel in the current frame is transparent, we don't modify it, so
|
||||||
|
// that we can see-through the corresponding pixel from an earlier frame.
|
||||||
|
const GifColorType c = cmap->Colors[src[i]];
|
||||||
|
dst[4 * i + 0] = c.Red;
|
||||||
|
dst[4 * i + 1] = c.Green;
|
||||||
|
dst[4 * i + 2] = c.Blue;
|
||||||
|
dst[4 * i + 3] = 0xff;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
static int ReadFrameGIF(const SavedImage* const gif_image,
|
||||||
|
const ColorMapObject* cmap, int transparent_color,
|
||||||
|
int out_stride, uint8_t* const dst) {
|
||||||
|
const GifImageDesc* image_desc = &gif_image->ImageDesc;
|
||||||
|
const uint8_t* in;
|
||||||
|
uint8_t* out;
|
||||||
|
int j;
|
||||||
|
|
||||||
|
if (image_desc->ColorMap) cmap = image_desc->ColorMap;
|
||||||
|
|
||||||
|
if (cmap == NULL || cmap->ColorCount != (1 << cmap->BitsPerPixel)) {
|
||||||
|
fprintf(stderr, "Potentially corrupt color map.\n");
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
in = (const uint8_t*)gif_image->RasterBits;
|
||||||
|
out = dst + image_desc->Top * out_stride + image_desc->Left * kNumChannels;
|
||||||
|
|
||||||
|
for (j = 0; j < image_desc->Height; ++j) {
|
||||||
|
RemapPixelsGIF(in, cmap, transparent_color, image_desc->Width, out);
|
||||||
|
in += image_desc->Width;
|
||||||
|
out += out_stride;
|
||||||
|
}
|
||||||
|
return 1;
|
||||||
|
}
|
||||||
|
|
||||||
|
// Read animated GIF bitstream from 'filename' into 'AnimatedImage' struct.
|
||||||
|
static int ReadAnimatedGIF(const char filename[], AnimatedImage* const image,
|
||||||
|
int dump_frames, const char dump_folder[]) {
|
||||||
|
uint32_t frame_count;
|
||||||
|
uint32_t canvas_width, canvas_height;
|
||||||
|
uint32_t i;
|
||||||
|
int gif_error;
|
||||||
|
GifFileType* gif;
|
||||||
|
|
||||||
|
gif = DGifOpenFileUnicode((const W_CHAR*)filename, NULL);
|
||||||
|
if (gif == NULL) {
|
||||||
|
WFPRINTF(stderr, "Could not read file: %s.\n", (const W_CHAR*)filename);
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
gif_error = DGifSlurp(gif);
|
||||||
|
if (gif_error != GIF_OK) {
|
||||||
|
WFPRINTF(stderr, "Could not parse image: %s.\n", (const W_CHAR*)filename);
|
||||||
|
GIFDisplayError(gif, gif_error);
|
||||||
|
DGifCloseFile(gif, NULL);
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
// Animation properties.
|
||||||
|
image->canvas_width = (uint32_t)gif->SWidth;
|
||||||
|
image->canvas_height = (uint32_t)gif->SHeight;
|
||||||
|
if (image->canvas_width > MAX_CANVAS_SIZE ||
|
||||||
|
image->canvas_height > MAX_CANVAS_SIZE) {
|
||||||
|
fprintf(stderr, "Invalid canvas dimension: %d x %d\n",
|
||||||
|
image->canvas_width, image->canvas_height);
|
||||||
|
DGifCloseFile(gif, NULL);
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
image->loop_count = GetLoopCountGIF(gif);
|
||||||
|
image->bgcolor = GetBackgroundColorGIF(gif);
|
||||||
|
|
||||||
|
frame_count = (uint32_t)gif->ImageCount;
|
||||||
|
if (frame_count == 0) {
|
||||||
|
DGifCloseFile(gif, NULL);
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (image->canvas_width == 0 || image->canvas_height == 0) {
|
||||||
|
image->canvas_width = gif->SavedImages[0].ImageDesc.Width;
|
||||||
|
image->canvas_height = gif->SavedImages[0].ImageDesc.Height;
|
||||||
|
gif->SavedImages[0].ImageDesc.Left = 0;
|
||||||
|
gif->SavedImages[0].ImageDesc.Top = 0;
|
||||||
|
if (image->canvas_width == 0 || image->canvas_height == 0) {
|
||||||
|
fprintf(stderr, "Invalid canvas size in GIF.\n");
|
||||||
|
DGifCloseFile(gif, NULL);
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
// Allocate frames.
|
||||||
|
if (!AllocateFrames(image, frame_count)) {
|
||||||
|
DGifCloseFile(gif, NULL);
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
canvas_width = image->canvas_width;
|
||||||
|
canvas_height = image->canvas_height;
|
||||||
|
|
||||||
|
// Decode and reconstruct frames.
|
||||||
|
for (i = 0; i < frame_count; ++i) {
|
||||||
|
const int canvas_width_in_bytes = canvas_width * kNumChannels;
|
||||||
|
const SavedImage* const curr_gif_image = &gif->SavedImages[i];
|
||||||
|
GraphicsControlBlock curr_gcb;
|
||||||
|
DecodedFrame* curr_frame;
|
||||||
|
uint8_t* curr_rgba;
|
||||||
|
|
||||||
|
memset(&curr_gcb, 0, sizeof(curr_gcb));
|
||||||
|
DGifSavedExtensionToGCB(gif, i, &curr_gcb);
|
||||||
|
|
||||||
|
curr_frame = &image->frames[i];
|
||||||
|
curr_rgba = curr_frame->rgba;
|
||||||
|
curr_frame->duration = GetFrameDurationGIF(gif, i);
|
||||||
|
// Force frames with a small or no duration to 100ms to be consistent
|
||||||
|
// with web browsers and other transcoding tools (like gif2webp itself).
|
||||||
|
if (curr_frame->duration <= 10) curr_frame->duration = 100;
|
||||||
|
|
||||||
|
if (i == 0) { // Initialize as transparent.
|
||||||
|
curr_frame->is_key_frame = 1;
|
||||||
|
ZeroFillCanvas(curr_rgba, canvas_width, canvas_height);
|
||||||
|
} else {
|
||||||
|
DecodedFrame* const prev_frame = &image->frames[i - 1];
|
||||||
|
const GifImageDesc* const prev_desc = &gif->SavedImages[i - 1].ImageDesc;
|
||||||
|
GraphicsControlBlock prev_gcb;
|
||||||
|
memset(&prev_gcb, 0, sizeof(prev_gcb));
|
||||||
|
DGifSavedExtensionToGCB(gif, i - 1, &prev_gcb);
|
||||||
|
|
||||||
|
curr_frame->is_key_frame =
|
||||||
|
IsKeyFrameGIF(prev_desc, prev_gcb.DisposalMode, prev_frame,
|
||||||
|
canvas_width, canvas_height);
|
||||||
|
|
||||||
|
if (curr_frame->is_key_frame) { // Initialize as transparent.
|
||||||
|
ZeroFillCanvas(curr_rgba, canvas_width, canvas_height);
|
||||||
|
} else {
|
||||||
|
int prev_frame_disposed, curr_frame_opaque;
|
||||||
|
int prev_frame_completely_covered;
|
||||||
|
// Initialize with previous canvas.
|
||||||
|
uint8_t* const prev_rgba = image->frames[i - 1].rgba;
|
||||||
|
CopyCanvas(prev_rgba, curr_rgba, canvas_width, canvas_height);
|
||||||
|
|
||||||
|
// Dispose previous frame rectangle.
|
||||||
|
prev_frame_disposed =
|
||||||
|
(prev_gcb.DisposalMode == DISPOSE_BACKGROUND ||
|
||||||
|
prev_gcb.DisposalMode == DISPOSE_PREVIOUS);
|
||||||
|
curr_frame_opaque =
|
||||||
|
(curr_gcb.TransparentColor == NO_TRANSPARENT_COLOR);
|
||||||
|
prev_frame_completely_covered =
|
||||||
|
curr_frame_opaque &&
|
||||||
|
CoversFrameGIF(&curr_gif_image->ImageDesc, prev_desc);
|
||||||
|
|
||||||
|
if (prev_frame_disposed && !prev_frame_completely_covered) {
|
||||||
|
switch (prev_gcb.DisposalMode) {
|
||||||
|
case DISPOSE_BACKGROUND: {
|
||||||
|
ZeroFillFrameRect(curr_rgba, canvas_width_in_bytes,
|
||||||
|
prev_desc->Left, prev_desc->Top,
|
||||||
|
prev_desc->Width, prev_desc->Height);
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
case DISPOSE_PREVIOUS: {
|
||||||
|
int src_frame_num = i - 2;
|
||||||
|
while (src_frame_num >= 0) {
|
||||||
|
GraphicsControlBlock src_frame_gcb;
|
||||||
|
memset(&src_frame_gcb, 0, sizeof(src_frame_gcb));
|
||||||
|
DGifSavedExtensionToGCB(gif, src_frame_num, &src_frame_gcb);
|
||||||
|
if (src_frame_gcb.DisposalMode != DISPOSE_PREVIOUS) break;
|
||||||
|
--src_frame_num;
|
||||||
|
}
|
||||||
|
if (src_frame_num >= 0) {
|
||||||
|
// Restore pixels inside previous frame rectangle to
|
||||||
|
// corresponding pixels in source canvas.
|
||||||
|
uint8_t* const src_frame_rgba =
|
||||||
|
image->frames[src_frame_num].rgba;
|
||||||
|
CopyFrameRectangle(src_frame_rgba, curr_rgba,
|
||||||
|
canvas_width_in_bytes,
|
||||||
|
prev_desc->Left, prev_desc->Top,
|
||||||
|
prev_desc->Width, prev_desc->Height);
|
||||||
|
} else {
|
||||||
|
// Source canvas doesn't exist. So clear previous frame
|
||||||
|
// rectangle to background.
|
||||||
|
ZeroFillFrameRect(curr_rgba, canvas_width_in_bytes,
|
||||||
|
prev_desc->Left, prev_desc->Top,
|
||||||
|
prev_desc->Width, prev_desc->Height);
|
||||||
|
}
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
default:
|
||||||
|
break; // Nothing to do.
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
// Decode current frame.
|
||||||
|
if (!ReadFrameGIF(curr_gif_image, gif->SColorMap, curr_gcb.TransparentColor,
|
||||||
|
canvas_width_in_bytes, curr_rgba)) {
|
||||||
|
DGifCloseFile(gif, NULL);
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (dump_frames) {
|
||||||
|
if (!DumpFrame(filename, dump_folder, i, curr_rgba,
|
||||||
|
canvas_width, canvas_height)) {
|
||||||
|
DGifCloseFile(gif, NULL);
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
image->format = ANIM_GIF;
|
||||||
|
DGifCloseFile(gif, NULL);
|
||||||
|
return 1;
|
||||||
|
}
|
||||||
|
|
||||||
|
#else
|
||||||
|
|
||||||
|
static int IsGIF(const WebPData* const data) {
|
||||||
|
(void)data;
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
static int ReadAnimatedGIF(const char filename[], AnimatedImage* const image,
|
||||||
|
int dump_frames, const char dump_folder[]) {
|
||||||
|
(void)filename;
|
||||||
|
(void)image;
|
||||||
|
(void)dump_frames;
|
||||||
|
(void)dump_folder;
|
||||||
|
fprintf(stderr, "GIF support not compiled. Please install the libgif-dev "
|
||||||
|
"package before building.\n");
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
#endif // WEBP_HAVE_GIF
|
||||||
|
|
||||||
|
// -----------------------------------------------------------------------------
|
||||||
|
|
||||||
|
int ReadAnimatedImage(const char filename[], AnimatedImage* const image,
|
||||||
|
int dump_frames, const char dump_folder[]) {
|
||||||
|
int ok = 0;
|
||||||
|
WebPData webp_data;
|
||||||
|
|
||||||
|
WebPDataInit(&webp_data);
|
||||||
|
memset(image, 0, sizeof(*image));
|
||||||
|
|
||||||
|
if (!ImgIoUtilReadFile(filename, &webp_data.bytes, &webp_data.size)) {
|
||||||
|
WFPRINTF(stderr, "Error reading file: %s\n", (const W_CHAR*)filename);
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (IsWebP(&webp_data)) {
|
||||||
|
ok = ReadAnimatedWebP(filename, &webp_data, image, dump_frames,
|
||||||
|
dump_folder);
|
||||||
|
} else if (IsGIF(&webp_data)) {
|
||||||
|
ok = ReadAnimatedGIF(filename, image, dump_frames, dump_folder);
|
||||||
|
} else {
|
||||||
|
WFPRINTF(stderr,
|
||||||
|
"Unknown file type: %s. Supported file types are WebP and GIF\n",
|
||||||
|
(const W_CHAR*)filename);
|
||||||
|
ok = 0;
|
||||||
|
}
|
||||||
|
if (!ok) ClearAnimatedImage(image);
|
||||||
|
WebPDataClear(&webp_data);
|
||||||
|
return ok;
|
||||||
|
}
|
||||||
|
|
||||||
|
static void Accumulate(double v1, double v2, double* const max_diff,
|
||||||
|
double* const sse) {
|
||||||
|
const double diff = fabs(v1 - v2);
|
||||||
|
if (diff > *max_diff) *max_diff = diff;
|
||||||
|
*sse += diff * diff;
|
||||||
|
}
|
||||||
|
|
||||||
|
void GetDiffAndPSNR(const uint8_t rgba1[], const uint8_t rgba2[],
|
||||||
|
uint32_t width, uint32_t height, int premultiply,
|
||||||
|
int* const max_diff, double* const psnr) {
|
||||||
|
const uint32_t stride = width * kNumChannels;
|
||||||
|
const int kAlphaChannel = kNumChannels - 1;
|
||||||
|
double f_max_diff = 0.;
|
||||||
|
double sse = 0.;
|
||||||
|
uint32_t x, y;
|
||||||
|
for (y = 0; y < height; ++y) {
|
||||||
|
for (x = 0; x < stride; x += kNumChannels) {
|
||||||
|
int k;
|
||||||
|
const size_t offset = (size_t)y * stride + x;
|
||||||
|
const int alpha1 = rgba1[offset + kAlphaChannel];
|
||||||
|
const int alpha2 = rgba2[offset + kAlphaChannel];
|
||||||
|
Accumulate(alpha1, alpha2, &f_max_diff, &sse);
|
||||||
|
if (!premultiply) {
|
||||||
|
for (k = 0; k < kAlphaChannel; ++k) {
|
||||||
|
Accumulate(rgba1[offset + k], rgba2[offset + k], &f_max_diff, &sse);
|
||||||
|
}
|
||||||
|
} else {
|
||||||
|
// premultiply R/G/B channels with alpha value
|
||||||
|
for (k = 0; k < kAlphaChannel; ++k) {
|
||||||
|
Accumulate(rgba1[offset + k] * alpha1 / 255.,
|
||||||
|
rgba2[offset + k] * alpha2 / 255.,
|
||||||
|
&f_max_diff, &sse);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
*max_diff = (int)f_max_diff;
|
||||||
|
if (*max_diff == 0) {
|
||||||
|
*psnr = 99.; // PSNR when images are identical.
|
||||||
|
} else {
|
||||||
|
sse /= stride * height;
|
||||||
|
*psnr = 4.3429448 * log(255. * 255. / sse);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
void GetAnimatedImageVersions(int* const decoder_version,
|
||||||
|
int* const demux_version) {
|
||||||
|
*decoder_version = WebPGetDecoderVersion();
|
||||||
|
*demux_version = WebPGetDemuxVersion();
|
||||||
|
}
|
73
examples/anim_util.h
Normal file
73
examples/anim_util.h
Normal file
@ -0,0 +1,73 @@
|
|||||||
|
// Copyright 2015 Google Inc. All Rights Reserved.
|
||||||
|
//
|
||||||
|
// Use of this source code is governed by a BSD-style license
|
||||||
|
// that can be found in the COPYING file in the root of the source
|
||||||
|
// tree. An additional intellectual property rights grant can be found
|
||||||
|
// in the file PATENTS. All contributing project authors may
|
||||||
|
// be found in the AUTHORS file in the root of the source tree.
|
||||||
|
// -----------------------------------------------------------------------------
|
||||||
|
//
|
||||||
|
// Utilities for animated images
|
||||||
|
|
||||||
|
#ifndef WEBP_EXAMPLES_ANIM_UTIL_H_
|
||||||
|
#define WEBP_EXAMPLES_ANIM_UTIL_H_
|
||||||
|
|
||||||
|
#ifdef HAVE_CONFIG_H
|
||||||
|
#include "webp/config.h"
|
||||||
|
#endif
|
||||||
|
|
||||||
|
#include "webp/types.h"
|
||||||
|
|
||||||
|
#ifdef __cplusplus
|
||||||
|
extern "C" {
|
||||||
|
#endif
|
||||||
|
|
||||||
|
typedef enum {
|
||||||
|
ANIM_GIF,
|
||||||
|
ANIM_WEBP
|
||||||
|
} AnimatedFileFormat;
|
||||||
|
|
||||||
|
typedef struct {
|
||||||
|
uint8_t* rgba; // Decoded and reconstructed full frame.
|
||||||
|
int duration; // Frame duration in milliseconds.
|
||||||
|
int is_key_frame; // True if this frame is a key-frame.
|
||||||
|
} DecodedFrame;
|
||||||
|
|
||||||
|
typedef struct {
|
||||||
|
AnimatedFileFormat format;
|
||||||
|
uint32_t canvas_width;
|
||||||
|
uint32_t canvas_height;
|
||||||
|
uint32_t bgcolor;
|
||||||
|
uint32_t loop_count;
|
||||||
|
DecodedFrame* frames;
|
||||||
|
uint32_t num_frames;
|
||||||
|
void* raw_mem;
|
||||||
|
} AnimatedImage;
|
||||||
|
|
||||||
|
// Deallocate everything in 'image' (but not the object itself).
|
||||||
|
void ClearAnimatedImage(AnimatedImage* const image);
|
||||||
|
|
||||||
|
// Read animated image file into 'AnimatedImage' struct.
|
||||||
|
// If 'dump_frames' is true, dump frames to 'dump_folder'.
|
||||||
|
// Previous content of 'image' is obliterated.
|
||||||
|
// Upon successful return, content of 'image' must be deleted by
|
||||||
|
// calling 'ClearAnimatedImage'.
|
||||||
|
int ReadAnimatedImage(const char filename[], AnimatedImage* const image,
|
||||||
|
int dump_frames, const char dump_folder[]);
|
||||||
|
|
||||||
|
// Given two RGBA buffers, calculate max pixel difference and PSNR.
|
||||||
|
// If 'premultiply' is true, R/G/B values will be pre-multiplied by the
|
||||||
|
// transparency before comparison.
|
||||||
|
void GetDiffAndPSNR(const uint8_t rgba1[], const uint8_t rgba2[],
|
||||||
|
uint32_t width, uint32_t height, int premultiply,
|
||||||
|
int* const max_diff, double* const psnr);
|
||||||
|
|
||||||
|
// Return library versions used by anim_util.
|
||||||
|
void GetAnimatedImageVersions(int* const decoder_version,
|
||||||
|
int* const demux_version);
|
||||||
|
|
||||||
|
#ifdef __cplusplus
|
||||||
|
} // extern "C"
|
||||||
|
#endif
|
||||||
|
|
||||||
|
#endif // WEBP_EXAMPLES_ANIM_UTIL_H_
|
1245
examples/cwebp.c
Normal file
1245
examples/cwebp.c
Normal file
File diff suppressed because it is too large
Load Diff
421
examples/dwebp.c
Normal file
421
examples/dwebp.c
Normal file
@ -0,0 +1,421 @@
|
|||||||
|
// Copyright 2010 Google Inc. All Rights Reserved.
|
||||||
|
//
|
||||||
|
// Use of this source code is governed by a BSD-style license
|
||||||
|
// that can be found in the COPYING file in the root of the source
|
||||||
|
// tree. An additional intellectual property rights grant can be found
|
||||||
|
// in the file PATENTS. All contributing project authors may
|
||||||
|
// be found in the AUTHORS file in the root of the source tree.
|
||||||
|
// -----------------------------------------------------------------------------
|
||||||
|
//
|
||||||
|
// Command-line tool for decoding a WebP image.
|
||||||
|
//
|
||||||
|
// Author: Skal (pascal.massimino@gmail.com)
|
||||||
|
|
||||||
|
#include <assert.h>
|
||||||
|
#include <stdio.h>
|
||||||
|
#include <stdlib.h>
|
||||||
|
#include <string.h>
|
||||||
|
|
||||||
|
#ifdef HAVE_CONFIG_H
|
||||||
|
#include "webp/config.h"
|
||||||
|
#endif
|
||||||
|
|
||||||
|
#include "../examples/example_util.h"
|
||||||
|
#include "../imageio/image_enc.h"
|
||||||
|
#include "../imageio/webpdec.h"
|
||||||
|
#include "./stopwatch.h"
|
||||||
|
#include "./unicode.h"
|
||||||
|
|
||||||
|
static int verbose = 0;
|
||||||
|
static int quiet = 0;
|
||||||
|
#ifndef WEBP_DLL
|
||||||
|
#ifdef __cplusplus
|
||||||
|
extern "C" {
|
||||||
|
#endif
|
||||||
|
|
||||||
|
extern void* VP8GetCPUInfo; // opaque forward declaration.
|
||||||
|
|
||||||
|
#ifdef __cplusplus
|
||||||
|
} // extern "C"
|
||||||
|
#endif
|
||||||
|
#endif // WEBP_DLL
|
||||||
|
|
||||||
|
|
||||||
|
static int SaveOutput(const WebPDecBuffer* const buffer,
|
||||||
|
WebPOutputFileFormat format, const char* const out_file) {
|
||||||
|
const int use_stdout = (out_file != NULL) && !WSTRCMP(out_file, "-");
|
||||||
|
int ok = 1;
|
||||||
|
Stopwatch stop_watch;
|
||||||
|
|
||||||
|
if (verbose) {
|
||||||
|
StopwatchReset(&stop_watch);
|
||||||
|
}
|
||||||
|
ok = WebPSaveImage(buffer, format, out_file);
|
||||||
|
|
||||||
|
if (ok) {
|
||||||
|
if (!quiet) {
|
||||||
|
if (use_stdout) {
|
||||||
|
fprintf(stderr, "Saved to stdout\n");
|
||||||
|
} else {
|
||||||
|
WFPRINTF(stderr, "Saved file %s\n", (const W_CHAR*)out_file);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
if (verbose) {
|
||||||
|
const double write_time = StopwatchReadAndReset(&stop_watch);
|
||||||
|
fprintf(stderr, "Time to write output: %.3fs\n", write_time);
|
||||||
|
}
|
||||||
|
} else {
|
||||||
|
if (use_stdout) {
|
||||||
|
fprintf(stderr, "Error writing to stdout !!\n");
|
||||||
|
} else {
|
||||||
|
WFPRINTF(stderr, "Error writing file %s !!\n", (const W_CHAR*)out_file);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
return ok;
|
||||||
|
}
|
||||||
|
|
||||||
|
static void Help(void) {
|
||||||
|
printf("Usage: dwebp in_file [options] [-o out_file]\n\n"
|
||||||
|
"Decodes the WebP image file to PNG format [Default].\n"
|
||||||
|
"Note: Animated WebP files are not supported.\n\n"
|
||||||
|
"Use following options to convert into alternate image formats:\n"
|
||||||
|
" -pam ......... save the raw RGBA samples as a color PAM\n"
|
||||||
|
" -ppm ......... save the raw RGB samples as a color PPM\n"
|
||||||
|
" -bmp ......... save as uncompressed BMP format\n"
|
||||||
|
" -tiff ........ save as uncompressed TIFF format\n"
|
||||||
|
" -pgm ......... save the raw YUV samples as a grayscale PGM\n"
|
||||||
|
" file with IMC4 layout\n"
|
||||||
|
" -yuv ......... save the raw YUV samples in flat layout\n"
|
||||||
|
"\n"
|
||||||
|
" Other options are:\n"
|
||||||
|
" -version ..... print version number and exit\n"
|
||||||
|
" -nofancy ..... don't use the fancy YUV420 upscaler\n"
|
||||||
|
" -nofilter .... disable in-loop filtering\n"
|
||||||
|
" -nodither .... disable dithering\n"
|
||||||
|
" -dither <d> .. dithering strength (in 0..100)\n"
|
||||||
|
" -alpha_dither use alpha-plane dithering if needed\n"
|
||||||
|
" -mt .......... use multi-threading\n"
|
||||||
|
" -crop <x> <y> <w> <h> ... crop output with the given rectangle\n"
|
||||||
|
" -resize <w> <h> ......... resize output (*after* any cropping)\n"
|
||||||
|
" -flip ........ flip the output vertically\n"
|
||||||
|
" -alpha ....... only save the alpha plane\n"
|
||||||
|
" -incremental . use incremental decoding (useful for tests)\n"
|
||||||
|
" -h ........... this help message\n"
|
||||||
|
" -v ........... verbose (e.g. print encoding/decoding times)\n"
|
||||||
|
" -quiet ....... quiet mode, don't print anything\n"
|
||||||
|
#ifndef WEBP_DLL
|
||||||
|
" -noasm ....... disable all assembly optimizations\n"
|
||||||
|
#endif
|
||||||
|
);
|
||||||
|
}
|
||||||
|
|
||||||
|
static const char* const kFormatType[] = {
|
||||||
|
"unspecified", "lossy", "lossless"
|
||||||
|
};
|
||||||
|
|
||||||
|
static uint8_t* AllocateExternalBuffer(WebPDecoderConfig* config,
|
||||||
|
WebPOutputFileFormat format,
|
||||||
|
int use_external_memory) {
|
||||||
|
uint8_t* external_buffer = NULL;
|
||||||
|
WebPDecBuffer* const output_buffer = &config->output;
|
||||||
|
int w = config->input.width;
|
||||||
|
int h = config->input.height;
|
||||||
|
if (config->options.use_scaling) {
|
||||||
|
w = config->options.scaled_width;
|
||||||
|
h = config->options.scaled_height;
|
||||||
|
} else if (config->options.use_cropping) {
|
||||||
|
w = config->options.crop_width;
|
||||||
|
h = config->options.crop_height;
|
||||||
|
}
|
||||||
|
if (format >= RGB && format <= rgbA_4444) {
|
||||||
|
const int bpp = (format == RGB || format == BGR) ? 3
|
||||||
|
: (format == RGBA_4444 || format == rgbA_4444 ||
|
||||||
|
format == RGB_565) ? 2
|
||||||
|
: 4;
|
||||||
|
uint32_t stride = bpp * w + 7; // <- just for exercising
|
||||||
|
external_buffer = (uint8_t*)WebPMalloc(stride * h);
|
||||||
|
if (external_buffer == NULL) return NULL;
|
||||||
|
output_buffer->u.RGBA.stride = stride;
|
||||||
|
output_buffer->u.RGBA.size = stride * h;
|
||||||
|
output_buffer->u.RGBA.rgba = external_buffer;
|
||||||
|
} else { // YUV and YUVA
|
||||||
|
const int has_alpha = WebPIsAlphaMode(output_buffer->colorspace);
|
||||||
|
uint8_t* tmp;
|
||||||
|
uint32_t stride = w + 3;
|
||||||
|
uint32_t uv_stride = (w + 1) / 2 + 13;
|
||||||
|
uint32_t total_size = stride * h * (has_alpha ? 2 : 1)
|
||||||
|
+ 2 * uv_stride * (h + 1) / 2;
|
||||||
|
assert(format >= YUV && format <= YUVA);
|
||||||
|
external_buffer = (uint8_t*)WebPMalloc(total_size);
|
||||||
|
if (external_buffer == NULL) return NULL;
|
||||||
|
tmp = external_buffer;
|
||||||
|
output_buffer->u.YUVA.y = tmp;
|
||||||
|
output_buffer->u.YUVA.y_stride = stride;
|
||||||
|
output_buffer->u.YUVA.y_size = stride * h;
|
||||||
|
tmp += output_buffer->u.YUVA.y_size;
|
||||||
|
if (has_alpha) {
|
||||||
|
output_buffer->u.YUVA.a = tmp;
|
||||||
|
output_buffer->u.YUVA.a_stride = stride;
|
||||||
|
output_buffer->u.YUVA.a_size = stride * h;
|
||||||
|
tmp += output_buffer->u.YUVA.a_size;
|
||||||
|
} else {
|
||||||
|
output_buffer->u.YUVA.a = NULL;
|
||||||
|
output_buffer->u.YUVA.a_stride = 0;
|
||||||
|
}
|
||||||
|
output_buffer->u.YUVA.u = tmp;
|
||||||
|
output_buffer->u.YUVA.u_stride = uv_stride;
|
||||||
|
output_buffer->u.YUVA.u_size = uv_stride * (h + 1) / 2;
|
||||||
|
tmp += output_buffer->u.YUVA.u_size;
|
||||||
|
|
||||||
|
output_buffer->u.YUVA.v = tmp;
|
||||||
|
output_buffer->u.YUVA.v_stride = uv_stride;
|
||||||
|
output_buffer->u.YUVA.v_size = uv_stride * (h + 1) / 2;
|
||||||
|
tmp += output_buffer->u.YUVA.v_size;
|
||||||
|
assert(tmp <= external_buffer + total_size);
|
||||||
|
}
|
||||||
|
output_buffer->is_external_memory = use_external_memory;
|
||||||
|
return external_buffer;
|
||||||
|
}
|
||||||
|
|
||||||
|
int main(int argc, const char* argv[]) {
|
||||||
|
int ok = 0;
|
||||||
|
const char* in_file = NULL;
|
||||||
|
const char* out_file = NULL;
|
||||||
|
|
||||||
|
WebPDecoderConfig config;
|
||||||
|
WebPDecBuffer* const output_buffer = &config.output;
|
||||||
|
WebPBitstreamFeatures* const bitstream = &config.input;
|
||||||
|
WebPOutputFileFormat format = PNG;
|
||||||
|
uint8_t* external_buffer = NULL;
|
||||||
|
int use_external_memory = 0;
|
||||||
|
const uint8_t* data = NULL;
|
||||||
|
|
||||||
|
int incremental = 0;
|
||||||
|
int c;
|
||||||
|
|
||||||
|
INIT_WARGV(argc, argv);
|
||||||
|
|
||||||
|
if (!WebPInitDecoderConfig(&config)) {
|
||||||
|
fprintf(stderr, "Library version mismatch!\n");
|
||||||
|
FREE_WARGV_AND_RETURN(-1);
|
||||||
|
}
|
||||||
|
|
||||||
|
for (c = 1; c < argc; ++c) {
|
||||||
|
int parse_error = 0;
|
||||||
|
if (!strcmp(argv[c], "-h") || !strcmp(argv[c], "-help")) {
|
||||||
|
Help();
|
||||||
|
FREE_WARGV_AND_RETURN(0);
|
||||||
|
} else if (!strcmp(argv[c], "-o") && c < argc - 1) {
|
||||||
|
out_file = (const char*)GET_WARGV(argv, ++c);
|
||||||
|
} else if (!strcmp(argv[c], "-alpha")) {
|
||||||
|
format = ALPHA_PLANE_ONLY;
|
||||||
|
} else if (!strcmp(argv[c], "-nofancy")) {
|
||||||
|
config.options.no_fancy_upsampling = 1;
|
||||||
|
} else if (!strcmp(argv[c], "-nofilter")) {
|
||||||
|
config.options.bypass_filtering = 1;
|
||||||
|
} else if (!strcmp(argv[c], "-pam")) {
|
||||||
|
format = PAM;
|
||||||
|
} else if (!strcmp(argv[c], "-ppm")) {
|
||||||
|
format = PPM;
|
||||||
|
} else if (!strcmp(argv[c], "-bmp")) {
|
||||||
|
format = BMP;
|
||||||
|
} else if (!strcmp(argv[c], "-tiff")) {
|
||||||
|
format = TIFF;
|
||||||
|
} else if (!strcmp(argv[c], "-quiet")) {
|
||||||
|
quiet = 1;
|
||||||
|
} else if (!strcmp(argv[c], "-version")) {
|
||||||
|
const int version = WebPGetDecoderVersion();
|
||||||
|
printf("%d.%d.%d\n",
|
||||||
|
(version >> 16) & 0xff, (version >> 8) & 0xff, version & 0xff);
|
||||||
|
FREE_WARGV_AND_RETURN(0);
|
||||||
|
} else if (!strcmp(argv[c], "-pgm")) {
|
||||||
|
format = PGM;
|
||||||
|
} else if (!strcmp(argv[c], "-yuv")) {
|
||||||
|
format = RAW_YUV;
|
||||||
|
} else if (!strcmp(argv[c], "-pixel_format") && c < argc - 1) {
|
||||||
|
const char* const fmt = argv[++c];
|
||||||
|
if (!strcmp(fmt, "RGB")) format = RGB;
|
||||||
|
else if (!strcmp(fmt, "RGBA")) format = RGBA;
|
||||||
|
else if (!strcmp(fmt, "BGR")) format = BGR;
|
||||||
|
else if (!strcmp(fmt, "BGRA")) format = BGRA;
|
||||||
|
else if (!strcmp(fmt, "ARGB")) format = ARGB;
|
||||||
|
else if (!strcmp(fmt, "RGBA_4444")) format = RGBA_4444;
|
||||||
|
else if (!strcmp(fmt, "RGB_565")) format = RGB_565;
|
||||||
|
else if (!strcmp(fmt, "rgbA")) format = rgbA;
|
||||||
|
else if (!strcmp(fmt, "bgrA")) format = bgrA;
|
||||||
|
else if (!strcmp(fmt, "Argb")) format = Argb;
|
||||||
|
else if (!strcmp(fmt, "rgbA_4444")) format = rgbA_4444;
|
||||||
|
else if (!strcmp(fmt, "YUV")) format = YUV;
|
||||||
|
else if (!strcmp(fmt, "YUVA")) format = YUVA;
|
||||||
|
else {
|
||||||
|
fprintf(stderr, "Can't parse pixel_format %s\n", fmt);
|
||||||
|
parse_error = 1;
|
||||||
|
}
|
||||||
|
} else if (!strcmp(argv[c], "-external_memory") && c < argc - 1) {
|
||||||
|
use_external_memory = ExUtilGetInt(argv[++c], 0, &parse_error);
|
||||||
|
parse_error |= (use_external_memory > 2 || use_external_memory < 0);
|
||||||
|
if (parse_error) {
|
||||||
|
fprintf(stderr, "Can't parse 'external_memory' value %s\n", argv[c]);
|
||||||
|
}
|
||||||
|
} else if (!strcmp(argv[c], "-mt")) {
|
||||||
|
config.options.use_threads = 1;
|
||||||
|
} else if (!strcmp(argv[c], "-alpha_dither")) {
|
||||||
|
config.options.alpha_dithering_strength = 100;
|
||||||
|
} else if (!strcmp(argv[c], "-nodither")) {
|
||||||
|
config.options.dithering_strength = 0;
|
||||||
|
} else if (!strcmp(argv[c], "-dither") && c < argc - 1) {
|
||||||
|
config.options.dithering_strength =
|
||||||
|
ExUtilGetInt(argv[++c], 0, &parse_error);
|
||||||
|
} else if (!strcmp(argv[c], "-crop") && c < argc - 4) {
|
||||||
|
config.options.use_cropping = 1;
|
||||||
|
config.options.crop_left = ExUtilGetInt(argv[++c], 0, &parse_error);
|
||||||
|
config.options.crop_top = ExUtilGetInt(argv[++c], 0, &parse_error);
|
||||||
|
config.options.crop_width = ExUtilGetInt(argv[++c], 0, &parse_error);
|
||||||
|
config.options.crop_height = ExUtilGetInt(argv[++c], 0, &parse_error);
|
||||||
|
} else if ((!strcmp(argv[c], "-scale") || !strcmp(argv[c], "-resize")) &&
|
||||||
|
c < argc - 2) { // '-scale' is left for compatibility
|
||||||
|
config.options.use_scaling = 1;
|
||||||
|
config.options.scaled_width = ExUtilGetInt(argv[++c], 0, &parse_error);
|
||||||
|
config.options.scaled_height = ExUtilGetInt(argv[++c], 0, &parse_error);
|
||||||
|
} else if (!strcmp(argv[c], "-flip")) {
|
||||||
|
config.options.flip = 1;
|
||||||
|
} else if (!strcmp(argv[c], "-v")) {
|
||||||
|
verbose = 1;
|
||||||
|
#ifndef WEBP_DLL
|
||||||
|
} else if (!strcmp(argv[c], "-noasm")) {
|
||||||
|
VP8GetCPUInfo = NULL;
|
||||||
|
#endif
|
||||||
|
} else if (!strcmp(argv[c], "-incremental")) {
|
||||||
|
incremental = 1;
|
||||||
|
} else if (!strcmp(argv[c], "--")) {
|
||||||
|
if (c < argc - 1) in_file = (const char*)GET_WARGV(argv, ++c);
|
||||||
|
break;
|
||||||
|
} else if (argv[c][0] == '-') {
|
||||||
|
fprintf(stderr, "Unknown option '%s'\n", argv[c]);
|
||||||
|
Help();
|
||||||
|
FREE_WARGV_AND_RETURN(-1);
|
||||||
|
} else {
|
||||||
|
in_file = (const char*)GET_WARGV(argv, c);
|
||||||
|
}
|
||||||
|
|
||||||
|
if (parse_error) {
|
||||||
|
Help();
|
||||||
|
FREE_WARGV_AND_RETURN(-1);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
if (in_file == NULL) {
|
||||||
|
fprintf(stderr, "missing input file!!\n");
|
||||||
|
Help();
|
||||||
|
FREE_WARGV_AND_RETURN(-1);
|
||||||
|
}
|
||||||
|
|
||||||
|
if (quiet) verbose = 0;
|
||||||
|
|
||||||
|
{
|
||||||
|
VP8StatusCode status = VP8_STATUS_OK;
|
||||||
|
size_t data_size = 0;
|
||||||
|
if (!LoadWebP(in_file, &data, &data_size, bitstream)) {
|
||||||
|
FREE_WARGV_AND_RETURN(-1);
|
||||||
|
}
|
||||||
|
|
||||||
|
switch (format) {
|
||||||
|
case PNG:
|
||||||
|
#ifdef HAVE_WINCODEC_H
|
||||||
|
output_buffer->colorspace = bitstream->has_alpha ? MODE_BGRA : MODE_BGR;
|
||||||
|
#else
|
||||||
|
output_buffer->colorspace = bitstream->has_alpha ? MODE_RGBA : MODE_RGB;
|
||||||
|
#endif
|
||||||
|
break;
|
||||||
|
case PAM:
|
||||||
|
output_buffer->colorspace = MODE_RGBA;
|
||||||
|
break;
|
||||||
|
case PPM:
|
||||||
|
output_buffer->colorspace = MODE_RGB; // drops alpha for PPM
|
||||||
|
break;
|
||||||
|
case BMP:
|
||||||
|
output_buffer->colorspace = bitstream->has_alpha ? MODE_BGRA : MODE_BGR;
|
||||||
|
break;
|
||||||
|
case TIFF:
|
||||||
|
output_buffer->colorspace = bitstream->has_alpha ? MODE_RGBA : MODE_RGB;
|
||||||
|
break;
|
||||||
|
case PGM:
|
||||||
|
case RAW_YUV:
|
||||||
|
output_buffer->colorspace = bitstream->has_alpha ? MODE_YUVA : MODE_YUV;
|
||||||
|
break;
|
||||||
|
case ALPHA_PLANE_ONLY:
|
||||||
|
output_buffer->colorspace = MODE_YUVA;
|
||||||
|
break;
|
||||||
|
// forced modes:
|
||||||
|
case RGB: output_buffer->colorspace = MODE_RGB; break;
|
||||||
|
case RGBA: output_buffer->colorspace = MODE_RGBA; break;
|
||||||
|
case BGR: output_buffer->colorspace = MODE_BGR; break;
|
||||||
|
case BGRA: output_buffer->colorspace = MODE_BGRA; break;
|
||||||
|
case ARGB: output_buffer->colorspace = MODE_ARGB; break;
|
||||||
|
case RGBA_4444: output_buffer->colorspace = MODE_RGBA_4444; break;
|
||||||
|
case RGB_565: output_buffer->colorspace = MODE_RGB_565; break;
|
||||||
|
case rgbA: output_buffer->colorspace = MODE_rgbA; break;
|
||||||
|
case bgrA: output_buffer->colorspace = MODE_bgrA; break;
|
||||||
|
case Argb: output_buffer->colorspace = MODE_Argb; break;
|
||||||
|
case rgbA_4444: output_buffer->colorspace = MODE_rgbA_4444; break;
|
||||||
|
case YUV: output_buffer->colorspace = MODE_YUV; break;
|
||||||
|
case YUVA: output_buffer->colorspace = MODE_YUVA; break;
|
||||||
|
default: goto Exit;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (use_external_memory > 0 && format >= RGB) {
|
||||||
|
external_buffer = AllocateExternalBuffer(&config, format,
|
||||||
|
use_external_memory);
|
||||||
|
if (external_buffer == NULL) goto Exit;
|
||||||
|
}
|
||||||
|
|
||||||
|
{
|
||||||
|
Stopwatch stop_watch;
|
||||||
|
if (verbose) StopwatchReset(&stop_watch);
|
||||||
|
|
||||||
|
if (incremental) {
|
||||||
|
status = DecodeWebPIncremental(data, data_size, &config);
|
||||||
|
} else {
|
||||||
|
status = DecodeWebP(data, data_size, &config);
|
||||||
|
}
|
||||||
|
if (verbose) {
|
||||||
|
const double decode_time = StopwatchReadAndReset(&stop_watch);
|
||||||
|
fprintf(stderr, "Time to decode picture: %.3fs\n", decode_time);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
ok = (status == VP8_STATUS_OK);
|
||||||
|
if (!ok) {
|
||||||
|
PrintWebPError(in_file, status);
|
||||||
|
goto Exit;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
if (out_file != NULL) {
|
||||||
|
if (!quiet) {
|
||||||
|
WFPRINTF(stderr, "Decoded %s.", (const W_CHAR*)in_file);
|
||||||
|
fprintf(stderr, " Dimensions: %d x %d %s. Format: %s. Now saving...\n",
|
||||||
|
output_buffer->width, output_buffer->height,
|
||||||
|
bitstream->has_alpha ? " (with alpha)" : "",
|
||||||
|
kFormatType[bitstream->format]);
|
||||||
|
}
|
||||||
|
ok = SaveOutput(output_buffer, format, out_file);
|
||||||
|
} else {
|
||||||
|
if (!quiet) {
|
||||||
|
WFPRINTF(stderr, "File %s can be decoded ", (const W_CHAR*)in_file);
|
||||||
|
fprintf(stderr, "(dimensions: %d x %d %s. Format: %s).\n",
|
||||||
|
output_buffer->width, output_buffer->height,
|
||||||
|
bitstream->has_alpha ? " (with alpha)" : "",
|
||||||
|
kFormatType[bitstream->format]);
|
||||||
|
fprintf(stderr, "Nothing written; "
|
||||||
|
"use -o flag to save the result as e.g. PNG.\n");
|
||||||
|
}
|
||||||
|
}
|
||||||
|
Exit:
|
||||||
|
WebPFreeDecBuffer(output_buffer);
|
||||||
|
WebPFree((void*)external_buffer);
|
||||||
|
WebPFree((void*)data);
|
||||||
|
FREE_WARGV_AND_RETURN(ok ? 0 : -1);
|
||||||
|
}
|
||||||
|
|
||||||
|
//------------------------------------------------------------------------------
|
139
examples/example_util.c
Normal file
139
examples/example_util.c
Normal file
@ -0,0 +1,139 @@
|
|||||||
|
// Copyright 2012 Google Inc. All Rights Reserved.
|
||||||
|
//
|
||||||
|
// Use of this source code is governed by a BSD-style license
|
||||||
|
// that can be found in the COPYING file in the root of the source
|
||||||
|
// tree. An additional intellectual property rights grant can be found
|
||||||
|
// in the file PATENTS. All contributing project authors may
|
||||||
|
// be found in the AUTHORS file in the root of the source tree.
|
||||||
|
// -----------------------------------------------------------------------------
|
||||||
|
//
|
||||||
|
// Utility functions used by the example programs.
|
||||||
|
//
|
||||||
|
|
||||||
|
#include "./example_util.h"
|
||||||
|
|
||||||
|
#include <assert.h>
|
||||||
|
#include <stdio.h>
|
||||||
|
#include <stdlib.h>
|
||||||
|
#include <string.h>
|
||||||
|
|
||||||
|
#include "webp/mux_types.h"
|
||||||
|
#include "../imageio/imageio_util.h"
|
||||||
|
|
||||||
|
//------------------------------------------------------------------------------
|
||||||
|
// String parsing
|
||||||
|
|
||||||
|
uint32_t ExUtilGetUInt(const char* const v, int base, int* const error) {
|
||||||
|
char* end = NULL;
|
||||||
|
const uint32_t n = (v != NULL) ? (uint32_t)strtoul(v, &end, base) : 0u;
|
||||||
|
if (end == v && error != NULL && !*error) {
|
||||||
|
*error = 1;
|
||||||
|
fprintf(stderr, "Error! '%s' is not an integer.\n",
|
||||||
|
(v != NULL) ? v : "(null)");
|
||||||
|
}
|
||||||
|
return n;
|
||||||
|
}
|
||||||
|
|
||||||
|
int ExUtilGetInt(const char* const v, int base, int* const error) {
|
||||||
|
return (int)ExUtilGetUInt(v, base, error);
|
||||||
|
}
|
||||||
|
|
||||||
|
int ExUtilGetInts(const char* v, int base, int max_output, int output[]) {
|
||||||
|
int n, error = 0;
|
||||||
|
for (n = 0; v != NULL && n < max_output; ++n) {
|
||||||
|
const int value = ExUtilGetInt(v, base, &error);
|
||||||
|
if (error) return -1;
|
||||||
|
output[n] = value;
|
||||||
|
v = strchr(v, ',');
|
||||||
|
if (v != NULL) ++v; // skip over the trailing ','
|
||||||
|
}
|
||||||
|
return n;
|
||||||
|
}
|
||||||
|
|
||||||
|
float ExUtilGetFloat(const char* const v, int* const error) {
|
||||||
|
char* end = NULL;
|
||||||
|
const float f = (v != NULL) ? (float)strtod(v, &end) : 0.f;
|
||||||
|
if (end == v && error != NULL && !*error) {
|
||||||
|
*error = 1;
|
||||||
|
fprintf(stderr, "Error! '%s' is not a floating point number.\n",
|
||||||
|
(v != NULL) ? v : "(null)");
|
||||||
|
}
|
||||||
|
return f;
|
||||||
|
}
|
||||||
|
|
||||||
|
//------------------------------------------------------------------------------
|
||||||
|
|
||||||
|
static void ResetCommandLineArguments(int argc, const char* argv[],
|
||||||
|
CommandLineArguments* const args) {
|
||||||
|
assert(args != NULL);
|
||||||
|
args->argc_ = argc;
|
||||||
|
args->argv_ = argv;
|
||||||
|
args->own_argv_ = 0;
|
||||||
|
WebPDataInit(&args->argv_data_);
|
||||||
|
}
|
||||||
|
|
||||||
|
void ExUtilDeleteCommandLineArguments(CommandLineArguments* const args) {
|
||||||
|
if (args != NULL) {
|
||||||
|
if (args->own_argv_) {
|
||||||
|
WebPFree((void*)args->argv_);
|
||||||
|
WebPDataClear(&args->argv_data_);
|
||||||
|
}
|
||||||
|
ResetCommandLineArguments(0, NULL, args);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
#define MAX_ARGC 16384
|
||||||
|
int ExUtilInitCommandLineArguments(int argc, const char* argv[],
|
||||||
|
CommandLineArguments* const args) {
|
||||||
|
if (args == NULL || argv == NULL) return 0;
|
||||||
|
ResetCommandLineArguments(argc, argv, args);
|
||||||
|
if (argc == 1 && argv[0][0] != '-') {
|
||||||
|
char* cur;
|
||||||
|
const char sep[] = " \t\r\n\f\v";
|
||||||
|
|
||||||
|
#if defined(_WIN32) && defined(_UNICODE)
|
||||||
|
fprintf(stderr,
|
||||||
|
"Error: Reading arguments from a file is a feature unavailable "
|
||||||
|
"with Unicode binaries.\n");
|
||||||
|
return 0;
|
||||||
|
#endif
|
||||||
|
|
||||||
|
if (!ExUtilReadFileToWebPData(argv[0], &args->argv_data_)) {
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
args->own_argv_ = 1;
|
||||||
|
args->argv_ = (const char**)WebPMalloc(MAX_ARGC * sizeof(*args->argv_));
|
||||||
|
if (args->argv_ == NULL) {
|
||||||
|
ExUtilDeleteCommandLineArguments(args);
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
argc = 0;
|
||||||
|
for (cur = strtok((char*)args->argv_data_.bytes, sep);
|
||||||
|
cur != NULL;
|
||||||
|
cur = strtok(NULL, sep)) {
|
||||||
|
if (argc == MAX_ARGC) {
|
||||||
|
fprintf(stderr, "ERROR: Arguments limit %d reached\n", MAX_ARGC);
|
||||||
|
ExUtilDeleteCommandLineArguments(args);
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
assert(strlen(cur) != 0);
|
||||||
|
args->argv_[argc++] = cur;
|
||||||
|
}
|
||||||
|
args->argc_ = argc;
|
||||||
|
}
|
||||||
|
return 1;
|
||||||
|
}
|
||||||
|
|
||||||
|
//------------------------------------------------------------------------------
|
||||||
|
|
||||||
|
int ExUtilReadFileToWebPData(const char* const filename,
|
||||||
|
WebPData* const webp_data) {
|
||||||
|
const uint8_t* data;
|
||||||
|
size_t size;
|
||||||
|
if (webp_data == NULL) return 0;
|
||||||
|
if (!ImgIoUtilReadFile(filename, &data, &size)) return 0;
|
||||||
|
webp_data->bytes = data;
|
||||||
|
webp_data->size = size;
|
||||||
|
return 1;
|
||||||
|
}
|
70
examples/example_util.h
Normal file
70
examples/example_util.h
Normal file
@ -0,0 +1,70 @@
|
|||||||
|
// Copyright 2012 Google Inc. All Rights Reserved.
|
||||||
|
//
|
||||||
|
// Use of this source code is governed by a BSD-style license
|
||||||
|
// that can be found in the COPYING file in the root of the source
|
||||||
|
// tree. An additional intellectual property rights grant can be found
|
||||||
|
// in the file PATENTS. All contributing project authors may
|
||||||
|
// be found in the AUTHORS file in the root of the source tree.
|
||||||
|
// -----------------------------------------------------------------------------
|
||||||
|
//
|
||||||
|
// Utility functions used by the example programs.
|
||||||
|
//
|
||||||
|
|
||||||
|
#ifndef WEBP_EXAMPLES_EXAMPLE_UTIL_H_
|
||||||
|
#define WEBP_EXAMPLES_EXAMPLE_UTIL_H_
|
||||||
|
|
||||||
|
#include "webp/types.h"
|
||||||
|
#include "webp/mux_types.h"
|
||||||
|
|
||||||
|
#ifdef __cplusplus
|
||||||
|
extern "C" {
|
||||||
|
#endif
|
||||||
|
|
||||||
|
//------------------------------------------------------------------------------
|
||||||
|
// String parsing
|
||||||
|
|
||||||
|
// Parses 'v' using strto(ul|l|d)(). If error is non-NULL, '*error' is set to
|
||||||
|
// true on failure while on success it is left unmodified to allow chaining of
|
||||||
|
// calls. An error is only printed on the first occurrence.
|
||||||
|
uint32_t ExUtilGetUInt(const char* const v, int base, int* const error);
|
||||||
|
int ExUtilGetInt(const char* const v, int base, int* const error);
|
||||||
|
float ExUtilGetFloat(const char* const v, int* const error);
|
||||||
|
|
||||||
|
// This variant of ExUtilGetInt() will parse multiple integers from a
|
||||||
|
// comma-separated list. Up to 'max_output' integers are parsed.
|
||||||
|
// The result is placed in the output[] array, and the number of integers
|
||||||
|
// actually parsed is returned, or -1 if an error occurred.
|
||||||
|
int ExUtilGetInts(const char* v, int base, int max_output, int output[]);
|
||||||
|
|
||||||
|
// Reads a file named 'filename' into a WebPData structure. The content of
|
||||||
|
// webp_data is overwritten. Returns false in case of error.
|
||||||
|
int ExUtilReadFileToWebPData(const char* const filename,
|
||||||
|
WebPData* const webp_data);
|
||||||
|
|
||||||
|
//------------------------------------------------------------------------------
|
||||||
|
// Command-line arguments
|
||||||
|
|
||||||
|
typedef struct {
|
||||||
|
int argc_;
|
||||||
|
const char** argv_;
|
||||||
|
WebPData argv_data_;
|
||||||
|
int own_argv_;
|
||||||
|
} CommandLineArguments;
|
||||||
|
|
||||||
|
// Initializes the structure from the command-line parameters. If there is
|
||||||
|
// only one parameter and it does not start with a '-', then it is assumed to
|
||||||
|
// be a file name. This file will be read and tokenized into command-line
|
||||||
|
// arguments. The content of 'args' is overwritten.
|
||||||
|
// Returns false in case of error (memory allocation failure, non
|
||||||
|
// existing file, too many arguments, ...).
|
||||||
|
int ExUtilInitCommandLineArguments(int argc, const char* argv[],
|
||||||
|
CommandLineArguments* const args);
|
||||||
|
|
||||||
|
// Deallocate all memory and reset 'args'.
|
||||||
|
void ExUtilDeleteCommandLineArguments(CommandLineArguments* const args);
|
||||||
|
|
||||||
|
#ifdef __cplusplus
|
||||||
|
} // extern "C"
|
||||||
|
#endif
|
||||||
|
|
||||||
|
#endif // WEBP_EXAMPLES_EXAMPLE_UTIL_H_
|
609
examples/gif2webp.c
Normal file
609
examples/gif2webp.c
Normal file
@ -0,0 +1,609 @@
|
|||||||
|
// Copyright 2012 Google Inc. All Rights Reserved.
|
||||||
|
//
|
||||||
|
// Use of this source code is governed by a BSD-style license
|
||||||
|
// that can be found in the COPYING file in the root of the source
|
||||||
|
// tree. An additional intellectual property rights grant can be found
|
||||||
|
// in the file PATENTS. All contributing project authors may
|
||||||
|
// be found in the AUTHORS file in the root of the source tree.
|
||||||
|
// -----------------------------------------------------------------------------
|
||||||
|
//
|
||||||
|
// simple tool to convert animated GIFs to WebP
|
||||||
|
//
|
||||||
|
// Authors: Skal (pascal.massimino@gmail.com)
|
||||||
|
// Urvang (urvang@google.com)
|
||||||
|
|
||||||
|
#include <assert.h>
|
||||||
|
#include <stdio.h>
|
||||||
|
#include <stdlib.h>
|
||||||
|
#include <string.h>
|
||||||
|
|
||||||
|
#ifdef HAVE_CONFIG_H
|
||||||
|
#include "webp/config.h"
|
||||||
|
#endif
|
||||||
|
|
||||||
|
#ifdef WEBP_HAVE_GIF
|
||||||
|
|
||||||
|
#if defined(HAVE_UNISTD_H) && HAVE_UNISTD_H
|
||||||
|
#include <unistd.h>
|
||||||
|
#endif
|
||||||
|
|
||||||
|
#include <gif_lib.h>
|
||||||
|
#include "webp/encode.h"
|
||||||
|
#include "webp/mux.h"
|
||||||
|
#include "../examples/example_util.h"
|
||||||
|
#include "../imageio/imageio_util.h"
|
||||||
|
#include "./gifdec.h"
|
||||||
|
#include "./unicode.h"
|
||||||
|
#include "./unicode_gif.h"
|
||||||
|
|
||||||
|
#if !defined(STDIN_FILENO)
|
||||||
|
#define STDIN_FILENO 0
|
||||||
|
#endif
|
||||||
|
|
||||||
|
//------------------------------------------------------------------------------
|
||||||
|
|
||||||
|
static int transparent_index = GIF_INDEX_INVALID; // Opaque by default.
|
||||||
|
|
||||||
|
static const char* const kErrorMessages[-WEBP_MUX_NOT_ENOUGH_DATA + 1] = {
|
||||||
|
"WEBP_MUX_NOT_FOUND", "WEBP_MUX_INVALID_ARGUMENT", "WEBP_MUX_BAD_DATA",
|
||||||
|
"WEBP_MUX_MEMORY_ERROR", "WEBP_MUX_NOT_ENOUGH_DATA"
|
||||||
|
};
|
||||||
|
|
||||||
|
static const char* ErrorString(WebPMuxError err) {
|
||||||
|
assert(err <= WEBP_MUX_NOT_FOUND && err >= WEBP_MUX_NOT_ENOUGH_DATA);
|
||||||
|
return kErrorMessages[-err];
|
||||||
|
}
|
||||||
|
|
||||||
|
enum {
|
||||||
|
METADATA_ICC = (1 << 0),
|
||||||
|
METADATA_XMP = (1 << 1),
|
||||||
|
METADATA_ALL = METADATA_ICC | METADATA_XMP
|
||||||
|
};
|
||||||
|
|
||||||
|
//------------------------------------------------------------------------------
|
||||||
|
|
||||||
|
static void Help(void) {
|
||||||
|
printf("Usage:\n");
|
||||||
|
printf(" gif2webp [options] gif_file -o webp_file\n");
|
||||||
|
printf("Options:\n");
|
||||||
|
printf(" -h / -help ............. this help\n");
|
||||||
|
printf(" -lossy ................. encode image using lossy compression\n");
|
||||||
|
printf(" -mixed ................. for each frame in the image, pick lossy\n"
|
||||||
|
" or lossless compression heuristically\n");
|
||||||
|
printf(" -q <float> ............. quality factor (0:small..100:big)\n");
|
||||||
|
printf(" -m <int> ............... compression method (0=fast, 6=slowest)\n");
|
||||||
|
printf(" -min_size .............. minimize output size (default:off)\n"
|
||||||
|
" lossless compression by default; can be\n"
|
||||||
|
" combined with -q, -m, -lossy or -mixed\n"
|
||||||
|
" options\n");
|
||||||
|
printf(" -kmin <int> ............ min distance between key frames\n");
|
||||||
|
printf(" -kmax <int> ............ max distance between key frames\n");
|
||||||
|
printf(" -f <int> ............... filter strength (0=off..100)\n");
|
||||||
|
printf(" -metadata <string> ..... comma separated list of metadata to\n");
|
||||||
|
printf(" ");
|
||||||
|
printf("copy from the input to the output if present\n");
|
||||||
|
printf(" ");
|
||||||
|
printf("Valid values: all, none, icc, xmp (default)\n");
|
||||||
|
printf(" -loop_compatibility .... use compatibility mode for Chrome\n");
|
||||||
|
printf(" version prior to M62 (inclusive)\n");
|
||||||
|
printf(" -mt .................... use multi-threading if available\n");
|
||||||
|
printf("\n");
|
||||||
|
printf(" -version ............... print version number and exit\n");
|
||||||
|
printf(" -v ..................... verbose\n");
|
||||||
|
printf(" -quiet ................. don't print anything\n");
|
||||||
|
printf("\n");
|
||||||
|
}
|
||||||
|
|
||||||
|
//------------------------------------------------------------------------------
|
||||||
|
|
||||||
|
int main(int argc, const char* argv[]) {
|
||||||
|
int verbose = 0;
|
||||||
|
int gif_error = GIF_ERROR;
|
||||||
|
WebPMuxError err = WEBP_MUX_OK;
|
||||||
|
int ok = 0;
|
||||||
|
const W_CHAR* in_file = NULL, *out_file = NULL;
|
||||||
|
GifFileType* gif = NULL;
|
||||||
|
int frame_duration = 0;
|
||||||
|
int frame_timestamp = 0;
|
||||||
|
GIFDisposeMethod orig_dispose = GIF_DISPOSE_NONE;
|
||||||
|
|
||||||
|
WebPPicture frame; // Frame rectangle only (not disposed).
|
||||||
|
WebPPicture curr_canvas; // Not disposed.
|
||||||
|
WebPPicture prev_canvas; // Disposed.
|
||||||
|
|
||||||
|
WebPAnimEncoder* enc = NULL;
|
||||||
|
WebPAnimEncoderOptions enc_options;
|
||||||
|
WebPConfig config;
|
||||||
|
|
||||||
|
int frame_number = 0; // Whether we are processing the first frame.
|
||||||
|
int done;
|
||||||
|
int c;
|
||||||
|
int quiet = 0;
|
||||||
|
WebPData webp_data;
|
||||||
|
|
||||||
|
int keep_metadata = METADATA_XMP; // ICC not output by default.
|
||||||
|
WebPData icc_data;
|
||||||
|
int stored_icc = 0; // Whether we have already stored an ICC profile.
|
||||||
|
WebPData xmp_data;
|
||||||
|
int stored_xmp = 0; // Whether we have already stored an XMP profile.
|
||||||
|
int loop_count = 0; // default: infinite
|
||||||
|
int stored_loop_count = 0; // Whether we have found an explicit loop count.
|
||||||
|
int loop_compatibility = 0;
|
||||||
|
WebPMux* mux = NULL;
|
||||||
|
|
||||||
|
int default_kmin = 1; // Whether to use default kmin value.
|
||||||
|
int default_kmax = 1;
|
||||||
|
|
||||||
|
INIT_WARGV(argc, argv);
|
||||||
|
|
||||||
|
if (!WebPConfigInit(&config) || !WebPAnimEncoderOptionsInit(&enc_options) ||
|
||||||
|
!WebPPictureInit(&frame) || !WebPPictureInit(&curr_canvas) ||
|
||||||
|
!WebPPictureInit(&prev_canvas)) {
|
||||||
|
fprintf(stderr, "Error! Version mismatch!\n");
|
||||||
|
FREE_WARGV_AND_RETURN(-1);
|
||||||
|
}
|
||||||
|
config.lossless = 1; // Use lossless compression by default.
|
||||||
|
|
||||||
|
WebPDataInit(&webp_data);
|
||||||
|
WebPDataInit(&icc_data);
|
||||||
|
WebPDataInit(&xmp_data);
|
||||||
|
|
||||||
|
if (argc == 1) {
|
||||||
|
Help();
|
||||||
|
FREE_WARGV_AND_RETURN(0);
|
||||||
|
}
|
||||||
|
|
||||||
|
for (c = 1; c < argc; ++c) {
|
||||||
|
int parse_error = 0;
|
||||||
|
if (!strcmp(argv[c], "-h") || !strcmp(argv[c], "-help")) {
|
||||||
|
Help();
|
||||||
|
FREE_WARGV_AND_RETURN(0);
|
||||||
|
} else if (!strcmp(argv[c], "-o") && c < argc - 1) {
|
||||||
|
out_file = GET_WARGV(argv, ++c);
|
||||||
|
} else if (!strcmp(argv[c], "-lossy")) {
|
||||||
|
config.lossless = 0;
|
||||||
|
} else if (!strcmp(argv[c], "-mixed")) {
|
||||||
|
enc_options.allow_mixed = 1;
|
||||||
|
config.lossless = 0;
|
||||||
|
} else if (!strcmp(argv[c], "-loop_compatibility")) {
|
||||||
|
loop_compatibility = 1;
|
||||||
|
} else if (!strcmp(argv[c], "-q") && c < argc - 1) {
|
||||||
|
config.quality = ExUtilGetFloat(argv[++c], &parse_error);
|
||||||
|
} else if (!strcmp(argv[c], "-m") && c < argc - 1) {
|
||||||
|
config.method = ExUtilGetInt(argv[++c], 0, &parse_error);
|
||||||
|
} else if (!strcmp(argv[c], "-min_size")) {
|
||||||
|
enc_options.minimize_size = 1;
|
||||||
|
} else if (!strcmp(argv[c], "-kmax") && c < argc - 1) {
|
||||||
|
enc_options.kmax = ExUtilGetInt(argv[++c], 0, &parse_error);
|
||||||
|
default_kmax = 0;
|
||||||
|
} else if (!strcmp(argv[c], "-kmin") && c < argc - 1) {
|
||||||
|
enc_options.kmin = ExUtilGetInt(argv[++c], 0, &parse_error);
|
||||||
|
default_kmin = 0;
|
||||||
|
} else if (!strcmp(argv[c], "-f") && c < argc - 1) {
|
||||||
|
config.filter_strength = ExUtilGetInt(argv[++c], 0, &parse_error);
|
||||||
|
} else if (!strcmp(argv[c], "-metadata") && c < argc - 1) {
|
||||||
|
static const struct {
|
||||||
|
const char* option;
|
||||||
|
int flag;
|
||||||
|
} kTokens[] = {
|
||||||
|
{ "all", METADATA_ALL },
|
||||||
|
{ "none", 0 },
|
||||||
|
{ "icc", METADATA_ICC },
|
||||||
|
{ "xmp", METADATA_XMP },
|
||||||
|
};
|
||||||
|
const size_t kNumTokens = sizeof(kTokens) / sizeof(*kTokens);
|
||||||
|
const char* start = argv[++c];
|
||||||
|
const char* const end = start + strlen(start);
|
||||||
|
|
||||||
|
keep_metadata = 0;
|
||||||
|
while (start < end) {
|
||||||
|
size_t i;
|
||||||
|
const char* token = strchr(start, ',');
|
||||||
|
if (token == NULL) token = end;
|
||||||
|
|
||||||
|
for (i = 0; i < kNumTokens; ++i) {
|
||||||
|
if ((size_t)(token - start) == strlen(kTokens[i].option) &&
|
||||||
|
!strncmp(start, kTokens[i].option, strlen(kTokens[i].option))) {
|
||||||
|
if (kTokens[i].flag != 0) {
|
||||||
|
keep_metadata |= kTokens[i].flag;
|
||||||
|
} else {
|
||||||
|
keep_metadata = 0;
|
||||||
|
}
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
if (i == kNumTokens) {
|
||||||
|
fprintf(stderr, "Error! Unknown metadata type '%.*s'\n",
|
||||||
|
(int)(token - start), start);
|
||||||
|
Help();
|
||||||
|
FREE_WARGV_AND_RETURN(-1);
|
||||||
|
}
|
||||||
|
start = token + 1;
|
||||||
|
}
|
||||||
|
} else if (!strcmp(argv[c], "-mt")) {
|
||||||
|
++config.thread_level;
|
||||||
|
} else if (!strcmp(argv[c], "-version")) {
|
||||||
|
const int enc_version = WebPGetEncoderVersion();
|
||||||
|
const int mux_version = WebPGetMuxVersion();
|
||||||
|
printf("WebP Encoder version: %d.%d.%d\nWebP Mux version: %d.%d.%d\n",
|
||||||
|
(enc_version >> 16) & 0xff, (enc_version >> 8) & 0xff,
|
||||||
|
enc_version & 0xff, (mux_version >> 16) & 0xff,
|
||||||
|
(mux_version >> 8) & 0xff, mux_version & 0xff);
|
||||||
|
FREE_WARGV_AND_RETURN(0);
|
||||||
|
} else if (!strcmp(argv[c], "-quiet")) {
|
||||||
|
quiet = 1;
|
||||||
|
enc_options.verbose = 0;
|
||||||
|
} else if (!strcmp(argv[c], "-v")) {
|
||||||
|
verbose = 1;
|
||||||
|
enc_options.verbose = 1;
|
||||||
|
} else if (!strcmp(argv[c], "--")) {
|
||||||
|
if (c < argc - 1) in_file = GET_WARGV(argv, ++c);
|
||||||
|
break;
|
||||||
|
} else if (argv[c][0] == '-') {
|
||||||
|
fprintf(stderr, "Error! Unknown option '%s'\n", argv[c]);
|
||||||
|
Help();
|
||||||
|
FREE_WARGV_AND_RETURN(-1);
|
||||||
|
} else {
|
||||||
|
in_file = GET_WARGV(argv, c);
|
||||||
|
}
|
||||||
|
|
||||||
|
if (parse_error) {
|
||||||
|
Help();
|
||||||
|
FREE_WARGV_AND_RETURN(-1);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
// Appropriate default kmin, kmax values for lossy and lossless.
|
||||||
|
if (default_kmin) {
|
||||||
|
enc_options.kmin = config.lossless ? 9 : 3;
|
||||||
|
}
|
||||||
|
if (default_kmax) {
|
||||||
|
enc_options.kmax = config.lossless ? 17 : 5;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (!WebPValidateConfig(&config)) {
|
||||||
|
fprintf(stderr, "Error! Invalid configuration.\n");
|
||||||
|
goto End;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (in_file == NULL) {
|
||||||
|
fprintf(stderr, "No input file specified!\n");
|
||||||
|
Help();
|
||||||
|
goto End;
|
||||||
|
}
|
||||||
|
|
||||||
|
// Start the decoder object
|
||||||
|
gif = DGifOpenFileUnicode(in_file, &gif_error);
|
||||||
|
if (gif == NULL) goto End;
|
||||||
|
|
||||||
|
// Loop over GIF images
|
||||||
|
done = 0;
|
||||||
|
do {
|
||||||
|
GifRecordType type;
|
||||||
|
if (DGifGetRecordType(gif, &type) == GIF_ERROR) goto End;
|
||||||
|
|
||||||
|
switch (type) {
|
||||||
|
case IMAGE_DESC_RECORD_TYPE: {
|
||||||
|
GIFFrameRect gif_rect;
|
||||||
|
GifImageDesc* const image_desc = &gif->Image;
|
||||||
|
|
||||||
|
if (!DGifGetImageDesc(gif)) goto End;
|
||||||
|
|
||||||
|
if (frame_number == 0) {
|
||||||
|
if (verbose) {
|
||||||
|
printf("Canvas screen: %d x %d\n", gif->SWidth, gif->SHeight);
|
||||||
|
}
|
||||||
|
// Fix some broken GIF global headers that report
|
||||||
|
// 0 x 0 screen dimension.
|
||||||
|
if (gif->SWidth == 0 || gif->SHeight == 0) {
|
||||||
|
image_desc->Left = 0;
|
||||||
|
image_desc->Top = 0;
|
||||||
|
gif->SWidth = image_desc->Width;
|
||||||
|
gif->SHeight = image_desc->Height;
|
||||||
|
if (gif->SWidth <= 0 || gif->SHeight <= 0) {
|
||||||
|
goto End;
|
||||||
|
}
|
||||||
|
if (verbose) {
|
||||||
|
printf("Fixed canvas screen dimension to: %d x %d\n",
|
||||||
|
gif->SWidth, gif->SHeight);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
// Allocate current buffer.
|
||||||
|
frame.width = gif->SWidth;
|
||||||
|
frame.height = gif->SHeight;
|
||||||
|
frame.use_argb = 1;
|
||||||
|
if (!WebPPictureAlloc(&frame)) goto End;
|
||||||
|
GIFClearPic(&frame, NULL);
|
||||||
|
if (!(WebPPictureCopy(&frame, &curr_canvas) &&
|
||||||
|
WebPPictureCopy(&frame, &prev_canvas))) {
|
||||||
|
fprintf(stderr, "Error allocating canvas.\n");
|
||||||
|
goto End;
|
||||||
|
}
|
||||||
|
|
||||||
|
// Background color.
|
||||||
|
GIFGetBackgroundColor(gif->SColorMap, gif->SBackGroundColor,
|
||||||
|
transparent_index,
|
||||||
|
&enc_options.anim_params.bgcolor);
|
||||||
|
|
||||||
|
// Initialize encoder.
|
||||||
|
enc = WebPAnimEncoderNew(curr_canvas.width, curr_canvas.height,
|
||||||
|
&enc_options);
|
||||||
|
if (enc == NULL) {
|
||||||
|
fprintf(stderr,
|
||||||
|
"Error! Could not create encoder object. Possibly due to "
|
||||||
|
"a memory error.\n");
|
||||||
|
goto End;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
// Some even more broken GIF can have sub-rect with zero width/height.
|
||||||
|
if (image_desc->Width == 0 || image_desc->Height == 0) {
|
||||||
|
image_desc->Width = gif->SWidth;
|
||||||
|
image_desc->Height = gif->SHeight;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (!GIFReadFrame(gif, transparent_index, &gif_rect, &frame)) {
|
||||||
|
goto End;
|
||||||
|
}
|
||||||
|
// Blend frame rectangle with previous canvas to compose full canvas.
|
||||||
|
// Note that 'curr_canvas' is same as 'prev_canvas' at this point.
|
||||||
|
GIFBlendFrames(&frame, &gif_rect, &curr_canvas);
|
||||||
|
|
||||||
|
if (!WebPAnimEncoderAdd(enc, &curr_canvas, frame_timestamp, &config)) {
|
||||||
|
fprintf(stderr, "Error while adding frame #%d: %s\n", frame_number,
|
||||||
|
WebPAnimEncoderGetError(enc));
|
||||||
|
goto End;
|
||||||
|
} else {
|
||||||
|
++frame_number;
|
||||||
|
}
|
||||||
|
|
||||||
|
// Update canvases.
|
||||||
|
GIFDisposeFrame(orig_dispose, &gif_rect, &prev_canvas, &curr_canvas);
|
||||||
|
GIFCopyPixels(&curr_canvas, &prev_canvas);
|
||||||
|
|
||||||
|
// Force frames with a small or no duration to 100ms to be consistent
|
||||||
|
// with web browsers and other transcoding tools. This also avoids
|
||||||
|
// incorrect durations between frames when padding frames are
|
||||||
|
// discarded.
|
||||||
|
if (frame_duration <= 10) {
|
||||||
|
frame_duration = 100;
|
||||||
|
}
|
||||||
|
|
||||||
|
// Update timestamp (for next frame).
|
||||||
|
frame_timestamp += frame_duration;
|
||||||
|
|
||||||
|
// In GIF, graphic control extensions are optional for a frame, so we
|
||||||
|
// may not get one before reading the next frame. To handle this case,
|
||||||
|
// we reset frame properties to reasonable defaults for the next frame.
|
||||||
|
orig_dispose = GIF_DISPOSE_NONE;
|
||||||
|
frame_duration = 0;
|
||||||
|
transparent_index = GIF_INDEX_INVALID;
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
case EXTENSION_RECORD_TYPE: {
|
||||||
|
int extension;
|
||||||
|
GifByteType* data = NULL;
|
||||||
|
if (DGifGetExtension(gif, &extension, &data) == GIF_ERROR) {
|
||||||
|
goto End;
|
||||||
|
}
|
||||||
|
if (data == NULL) continue;
|
||||||
|
|
||||||
|
switch (extension) {
|
||||||
|
case COMMENT_EXT_FUNC_CODE: {
|
||||||
|
break; // Do nothing for now.
|
||||||
|
}
|
||||||
|
case GRAPHICS_EXT_FUNC_CODE: {
|
||||||
|
if (!GIFReadGraphicsExtension(data, &frame_duration, &orig_dispose,
|
||||||
|
&transparent_index)) {
|
||||||
|
goto End;
|
||||||
|
}
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
case PLAINTEXT_EXT_FUNC_CODE: {
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
case APPLICATION_EXT_FUNC_CODE: {
|
||||||
|
if (data[0] != 11) break; // Chunk is too short
|
||||||
|
if (!memcmp(data + 1, "NETSCAPE2.0", 11) ||
|
||||||
|
!memcmp(data + 1, "ANIMEXTS1.0", 11)) {
|
||||||
|
if (!GIFReadLoopCount(gif, &data, &loop_count)) {
|
||||||
|
goto End;
|
||||||
|
}
|
||||||
|
if (verbose) {
|
||||||
|
fprintf(stderr, "Loop count: %d\n", loop_count);
|
||||||
|
}
|
||||||
|
stored_loop_count = loop_compatibility ? (loop_count != 0) : 1;
|
||||||
|
} else { // An extension containing metadata.
|
||||||
|
// We only store the first encountered chunk of each type, and
|
||||||
|
// only if requested by the user.
|
||||||
|
const int is_xmp = (keep_metadata & METADATA_XMP) &&
|
||||||
|
!stored_xmp &&
|
||||||
|
!memcmp(data + 1, "XMP DataXMP", 11);
|
||||||
|
const int is_icc = (keep_metadata & METADATA_ICC) &&
|
||||||
|
!stored_icc &&
|
||||||
|
!memcmp(data + 1, "ICCRGBG1012", 11);
|
||||||
|
if (is_xmp || is_icc) {
|
||||||
|
if (!GIFReadMetadata(gif, &data,
|
||||||
|
is_xmp ? &xmp_data : &icc_data)) {
|
||||||
|
goto End;
|
||||||
|
}
|
||||||
|
if (is_icc) {
|
||||||
|
stored_icc = 1;
|
||||||
|
} else if (is_xmp) {
|
||||||
|
stored_xmp = 1;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
default: {
|
||||||
|
break; // skip
|
||||||
|
}
|
||||||
|
}
|
||||||
|
while (data != NULL) {
|
||||||
|
if (DGifGetExtensionNext(gif, &data) == GIF_ERROR) goto End;
|
||||||
|
}
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
case TERMINATE_RECORD_TYPE: {
|
||||||
|
done = 1;
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
default: {
|
||||||
|
if (verbose) {
|
||||||
|
fprintf(stderr, "Skipping over unknown record type %d\n", type);
|
||||||
|
}
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
} while (!done);
|
||||||
|
|
||||||
|
// Last NULL frame.
|
||||||
|
if (!WebPAnimEncoderAdd(enc, NULL, frame_timestamp, NULL)) {
|
||||||
|
fprintf(stderr, "Error flushing WebP muxer.\n");
|
||||||
|
fprintf(stderr, "%s\n", WebPAnimEncoderGetError(enc));
|
||||||
|
}
|
||||||
|
|
||||||
|
if (!WebPAnimEncoderAssemble(enc, &webp_data)) {
|
||||||
|
fprintf(stderr, "%s\n", WebPAnimEncoderGetError(enc));
|
||||||
|
goto End;
|
||||||
|
}
|
||||||
|
// If there's only one frame, we don't need to handle loop count.
|
||||||
|
if (frame_number == 1) {
|
||||||
|
loop_count = 0;
|
||||||
|
} else if (!loop_compatibility) {
|
||||||
|
if (!stored_loop_count) {
|
||||||
|
// if no loop-count element is seen, the default is '1' (loop-once)
|
||||||
|
// and we need to signal it explicitly in WebP. Note however that
|
||||||
|
// in case there's a single frame, we still don't need to store it.
|
||||||
|
if (frame_number > 1) {
|
||||||
|
stored_loop_count = 1;
|
||||||
|
loop_count = 1;
|
||||||
|
}
|
||||||
|
} else if (loop_count > 0 && loop_count < 65535) {
|
||||||
|
// adapt GIF's semantic to WebP's (except in the infinite-loop case)
|
||||||
|
loop_count += 1;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
// loop_count of 0 is the default (infinite), so no need to signal it
|
||||||
|
if (loop_count == 0) stored_loop_count = 0;
|
||||||
|
|
||||||
|
if (stored_loop_count || stored_icc || stored_xmp) {
|
||||||
|
// Re-mux to add loop count and/or metadata as needed.
|
||||||
|
mux = WebPMuxCreate(&webp_data, 1);
|
||||||
|
if (mux == NULL) {
|
||||||
|
fprintf(stderr, "ERROR: Could not re-mux to add loop count/metadata.\n");
|
||||||
|
goto End;
|
||||||
|
}
|
||||||
|
WebPDataClear(&webp_data);
|
||||||
|
|
||||||
|
if (stored_loop_count) { // Update loop count.
|
||||||
|
WebPMuxAnimParams new_params;
|
||||||
|
err = WebPMuxGetAnimationParams(mux, &new_params);
|
||||||
|
if (err != WEBP_MUX_OK) {
|
||||||
|
fprintf(stderr, "ERROR (%s): Could not fetch loop count.\n",
|
||||||
|
ErrorString(err));
|
||||||
|
goto End;
|
||||||
|
}
|
||||||
|
new_params.loop_count = loop_count;
|
||||||
|
err = WebPMuxSetAnimationParams(mux, &new_params);
|
||||||
|
if (err != WEBP_MUX_OK) {
|
||||||
|
fprintf(stderr, "ERROR (%s): Could not update loop count.\n",
|
||||||
|
ErrorString(err));
|
||||||
|
goto End;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
if (stored_icc) { // Add ICCP chunk.
|
||||||
|
err = WebPMuxSetChunk(mux, "ICCP", &icc_data, 1);
|
||||||
|
if (verbose) {
|
||||||
|
fprintf(stderr, "ICC size: %d\n", (int)icc_data.size);
|
||||||
|
}
|
||||||
|
if (err != WEBP_MUX_OK) {
|
||||||
|
fprintf(stderr, "ERROR (%s): Could not set ICC chunk.\n",
|
||||||
|
ErrorString(err));
|
||||||
|
goto End;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
if (stored_xmp) { // Add XMP chunk.
|
||||||
|
err = WebPMuxSetChunk(mux, "XMP ", &xmp_data, 1);
|
||||||
|
if (verbose) {
|
||||||
|
fprintf(stderr, "XMP size: %d\n", (int)xmp_data.size);
|
||||||
|
}
|
||||||
|
if (err != WEBP_MUX_OK) {
|
||||||
|
fprintf(stderr, "ERROR (%s): Could not set XMP chunk.\n",
|
||||||
|
ErrorString(err));
|
||||||
|
goto End;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
err = WebPMuxAssemble(mux, &webp_data);
|
||||||
|
if (err != WEBP_MUX_OK) {
|
||||||
|
fprintf(stderr, "ERROR (%s): Could not assemble when re-muxing to add "
|
||||||
|
"loop count/metadata.\n", ErrorString(err));
|
||||||
|
goto End;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
if (out_file != NULL) {
|
||||||
|
if (!ImgIoUtilWriteFile((const char*)out_file, webp_data.bytes,
|
||||||
|
webp_data.size)) {
|
||||||
|
WFPRINTF(stderr, "Error writing output file: %s\n", out_file);
|
||||||
|
goto End;
|
||||||
|
}
|
||||||
|
if (!quiet) {
|
||||||
|
if (!WSTRCMP(out_file, "-")) {
|
||||||
|
fprintf(stderr, "Saved %d bytes to STDIO\n",
|
||||||
|
(int)webp_data.size);
|
||||||
|
} else {
|
||||||
|
WFPRINTF(stderr, "Saved output file (%d bytes): %s\n",
|
||||||
|
(int)webp_data.size, out_file);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
} else {
|
||||||
|
if (!quiet) {
|
||||||
|
fprintf(stderr, "Nothing written; use -o flag to save the result "
|
||||||
|
"(%d bytes).\n", (int)webp_data.size);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
// All OK.
|
||||||
|
ok = 1;
|
||||||
|
gif_error = GIF_OK;
|
||||||
|
|
||||||
|
End:
|
||||||
|
WebPDataClear(&icc_data);
|
||||||
|
WebPDataClear(&xmp_data);
|
||||||
|
WebPMuxDelete(mux);
|
||||||
|
WebPDataClear(&webp_data);
|
||||||
|
WebPPictureFree(&frame);
|
||||||
|
WebPPictureFree(&curr_canvas);
|
||||||
|
WebPPictureFree(&prev_canvas);
|
||||||
|
WebPAnimEncoderDelete(enc);
|
||||||
|
|
||||||
|
if (gif_error != GIF_OK) {
|
||||||
|
GIFDisplayError(gif, gif_error);
|
||||||
|
}
|
||||||
|
if (gif != NULL) {
|
||||||
|
#if LOCAL_GIF_PREREQ(5,1)
|
||||||
|
DGifCloseFile(gif, &gif_error);
|
||||||
|
#else
|
||||||
|
DGifCloseFile(gif);
|
||||||
|
#endif
|
||||||
|
}
|
||||||
|
|
||||||
|
FREE_WARGV_AND_RETURN(!ok);
|
||||||
|
}
|
||||||
|
|
||||||
|
#else // !WEBP_HAVE_GIF
|
||||||
|
|
||||||
|
int main(int argc, const char* argv[]) {
|
||||||
|
fprintf(stderr, "GIF support not enabled in %s.\n", argv[0]);
|
||||||
|
(void)argc;
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
#endif
|
||||||
|
|
||||||
|
//------------------------------------------------------------------------------
|
416
examples/gifdec.c
Normal file
416
examples/gifdec.c
Normal file
@ -0,0 +1,416 @@
|
|||||||
|
// Copyright 2012 Google Inc. All Rights Reserved.
|
||||||
|
//
|
||||||
|
// Use of this source code is governed by a BSD-style license
|
||||||
|
// that can be found in the COPYING file in the root of the source
|
||||||
|
// tree. An additional intellectual property rights grant can be found
|
||||||
|
// in the file PATENTS. All contributing project authors may
|
||||||
|
// be found in the AUTHORS file in the root of the source tree.
|
||||||
|
// -----------------------------------------------------------------------------
|
||||||
|
//
|
||||||
|
// GIF decode.
|
||||||
|
|
||||||
|
#include "./gifdec.h"
|
||||||
|
|
||||||
|
#include <stdio.h>
|
||||||
|
|
||||||
|
#ifdef WEBP_HAVE_GIF
|
||||||
|
#include <assert.h>
|
||||||
|
#include <stdlib.h>
|
||||||
|
#include <string.h>
|
||||||
|
|
||||||
|
#include "webp/encode.h"
|
||||||
|
#include "webp/mux_types.h"
|
||||||
|
|
||||||
|
#define GIF_TRANSPARENT_COLOR 0x00000000u
|
||||||
|
#define GIF_WHITE_COLOR 0xffffffffu
|
||||||
|
#define GIF_TRANSPARENT_MASK 0x01
|
||||||
|
#define GIF_DISPOSE_MASK 0x07
|
||||||
|
#define GIF_DISPOSE_SHIFT 2
|
||||||
|
|
||||||
|
// from utils/utils.h
|
||||||
|
#ifdef __cplusplus
|
||||||
|
extern "C" {
|
||||||
|
#endif
|
||||||
|
extern void WebPCopyPlane(const uint8_t* src, int src_stride,
|
||||||
|
uint8_t* dst, int dst_stride,
|
||||||
|
int width, int height);
|
||||||
|
extern void WebPCopyPixels(const WebPPicture* const src,
|
||||||
|
WebPPicture* const dst);
|
||||||
|
#ifdef __cplusplus
|
||||||
|
}
|
||||||
|
#endif
|
||||||
|
|
||||||
|
void GIFGetBackgroundColor(const ColorMapObject* const color_map,
|
||||||
|
int bgcolor_index, int transparent_index,
|
||||||
|
uint32_t* const bgcolor) {
|
||||||
|
if (transparent_index != GIF_INDEX_INVALID &&
|
||||||
|
bgcolor_index == transparent_index) {
|
||||||
|
*bgcolor = GIF_TRANSPARENT_COLOR; // Special case.
|
||||||
|
} else if (color_map == NULL || color_map->Colors == NULL
|
||||||
|
|| bgcolor_index >= color_map->ColorCount) {
|
||||||
|
*bgcolor = GIF_WHITE_COLOR;
|
||||||
|
fprintf(stderr,
|
||||||
|
"GIF decode warning: invalid background color index. Assuming "
|
||||||
|
"white background.\n");
|
||||||
|
} else {
|
||||||
|
const GifColorType color = color_map->Colors[bgcolor_index];
|
||||||
|
*bgcolor = (0xffu << 24)
|
||||||
|
| (color.Red << 16)
|
||||||
|
| (color.Green << 8)
|
||||||
|
| (color.Blue << 0);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
int GIFReadGraphicsExtension(const GifByteType* const buf, int* const duration,
|
||||||
|
GIFDisposeMethod* const dispose,
|
||||||
|
int* const transparent_index) {
|
||||||
|
const int flags = buf[1];
|
||||||
|
const int dispose_raw = (flags >> GIF_DISPOSE_SHIFT) & GIF_DISPOSE_MASK;
|
||||||
|
const int duration_raw = buf[2] | (buf[3] << 8); // In 10 ms units.
|
||||||
|
if (buf[0] != 4) return 0;
|
||||||
|
*duration = duration_raw * 10; // Duration is in 1 ms units.
|
||||||
|
switch (dispose_raw) {
|
||||||
|
case 3:
|
||||||
|
*dispose = GIF_DISPOSE_RESTORE_PREVIOUS;
|
||||||
|
break;
|
||||||
|
case 2:
|
||||||
|
*dispose = GIF_DISPOSE_BACKGROUND;
|
||||||
|
break;
|
||||||
|
case 1:
|
||||||
|
case 0:
|
||||||
|
default:
|
||||||
|
*dispose = GIF_DISPOSE_NONE;
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
*transparent_index =
|
||||||
|
(flags & GIF_TRANSPARENT_MASK) ? buf[4] : GIF_INDEX_INVALID;
|
||||||
|
return 1;
|
||||||
|
}
|
||||||
|
|
||||||
|
static int Remap(const GifFileType* const gif, const uint8_t* const src,
|
||||||
|
int len, int transparent_index, uint32_t* dst) {
|
||||||
|
int i;
|
||||||
|
const GifColorType* colors;
|
||||||
|
const ColorMapObject* const cmap =
|
||||||
|
gif->Image.ColorMap ? gif->Image.ColorMap : gif->SColorMap;
|
||||||
|
if (cmap == NULL) return 1;
|
||||||
|
if (cmap->Colors == NULL || cmap->ColorCount <= 0) return 0;
|
||||||
|
colors = cmap->Colors;
|
||||||
|
|
||||||
|
for (i = 0; i < len; ++i) {
|
||||||
|
if (src[i] == transparent_index) {
|
||||||
|
dst[i] = GIF_TRANSPARENT_COLOR;
|
||||||
|
} else if (src[i] < cmap->ColorCount) {
|
||||||
|
const GifColorType c = colors[src[i]];
|
||||||
|
dst[i] = c.Blue | (c.Green << 8) | (c.Red << 16) | (0xffu << 24);
|
||||||
|
} else {
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
return 1;
|
||||||
|
}
|
||||||
|
|
||||||
|
int GIFReadFrame(GifFileType* const gif, int transparent_index,
|
||||||
|
GIFFrameRect* const gif_rect, WebPPicture* const picture) {
|
||||||
|
WebPPicture sub_image;
|
||||||
|
const GifImageDesc* const image_desc = &gif->Image;
|
||||||
|
uint32_t* dst = NULL;
|
||||||
|
uint8_t* tmp = NULL;
|
||||||
|
const GIFFrameRect rect = {
|
||||||
|
image_desc->Left, image_desc->Top, image_desc->Width, image_desc->Height
|
||||||
|
};
|
||||||
|
const uint64_t memory_needed = 4 * rect.width * (uint64_t)rect.height;
|
||||||
|
int ok = 0;
|
||||||
|
*gif_rect = rect;
|
||||||
|
|
||||||
|
if (memory_needed != (size_t)memory_needed || memory_needed > (4ULL << 32)) {
|
||||||
|
fprintf(stderr, "Image is too large (%d x %d).", rect.width, rect.height);
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
// Use a view for the sub-picture:
|
||||||
|
if (!WebPPictureView(picture, rect.x_offset, rect.y_offset,
|
||||||
|
rect.width, rect.height, &sub_image)) {
|
||||||
|
fprintf(stderr, "Sub-image %dx%d at position %d,%d is invalid!\n",
|
||||||
|
rect.width, rect.height, rect.x_offset, rect.y_offset);
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
dst = sub_image.argb;
|
||||||
|
|
||||||
|
tmp = (uint8_t*)WebPMalloc(rect.width * sizeof(*tmp));
|
||||||
|
if (tmp == NULL) goto End;
|
||||||
|
|
||||||
|
if (image_desc->Interlace) { // Interlaced image.
|
||||||
|
// We need 4 passes, with the following offsets and jumps.
|
||||||
|
const int interlace_offsets[] = { 0, 4, 2, 1 };
|
||||||
|
const int interlace_jumps[] = { 8, 8, 4, 2 };
|
||||||
|
int pass;
|
||||||
|
for (pass = 0; pass < 4; ++pass) {
|
||||||
|
const size_t stride = (size_t)sub_image.argb_stride;
|
||||||
|
int y = interlace_offsets[pass];
|
||||||
|
uint32_t* row = dst + y * stride;
|
||||||
|
const size_t jump = interlace_jumps[pass] * stride;
|
||||||
|
for (; y < rect.height; y += interlace_jumps[pass], row += jump) {
|
||||||
|
if (DGifGetLine(gif, tmp, rect.width) == GIF_ERROR) goto End;
|
||||||
|
if (!Remap(gif, tmp, rect.width, transparent_index, row)) goto End;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
} else { // Non-interlaced image.
|
||||||
|
int y;
|
||||||
|
uint32_t* ptr = dst;
|
||||||
|
for (y = 0; y < rect.height; ++y, ptr += sub_image.argb_stride) {
|
||||||
|
if (DGifGetLine(gif, tmp, rect.width) == GIF_ERROR) goto End;
|
||||||
|
if (!Remap(gif, tmp, rect.width, transparent_index, ptr)) goto End;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
ok = 1;
|
||||||
|
|
||||||
|
End:
|
||||||
|
if (!ok) picture->error_code = sub_image.error_code;
|
||||||
|
WebPPictureFree(&sub_image);
|
||||||
|
WebPFree(tmp);
|
||||||
|
return ok;
|
||||||
|
}
|
||||||
|
|
||||||
|
int GIFReadLoopCount(GifFileType* const gif, GifByteType** const buf,
|
||||||
|
int* const loop_count) {
|
||||||
|
assert(!memcmp(*buf + 1, "NETSCAPE2.0", 11) ||
|
||||||
|
!memcmp(*buf + 1, "ANIMEXTS1.0", 11));
|
||||||
|
if (DGifGetExtensionNext(gif, buf) == GIF_ERROR) {
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
if (*buf == NULL) {
|
||||||
|
return 0; // Loop count sub-block missing.
|
||||||
|
}
|
||||||
|
if ((*buf)[0] < 3 || (*buf)[1] != 1) {
|
||||||
|
return 0; // wrong size/marker
|
||||||
|
}
|
||||||
|
*loop_count = (*buf)[2] | ((*buf)[3] << 8);
|
||||||
|
return 1;
|
||||||
|
}
|
||||||
|
|
||||||
|
int GIFReadMetadata(GifFileType* const gif, GifByteType** const buf,
|
||||||
|
WebPData* const metadata) {
|
||||||
|
const int is_xmp = !memcmp(*buf + 1, "XMP DataXMP", 11);
|
||||||
|
const int is_icc = !memcmp(*buf + 1, "ICCRGBG1012", 11);
|
||||||
|
assert(is_xmp || is_icc);
|
||||||
|
(void)is_icc; // silence unused warning.
|
||||||
|
// Construct metadata from sub-blocks.
|
||||||
|
// Usual case (including ICC profile): In each sub-block, the
|
||||||
|
// first byte specifies its size in bytes (0 to 255) and the
|
||||||
|
// rest of the bytes contain the data.
|
||||||
|
// Special case for XMP data: In each sub-block, the first byte
|
||||||
|
// is also part of the XMP payload. XMP in GIF also has a 257
|
||||||
|
// byte padding data. See the XMP specification for details.
|
||||||
|
while (1) {
|
||||||
|
WebPData subblock;
|
||||||
|
const uint8_t* tmp;
|
||||||
|
if (DGifGetExtensionNext(gif, buf) == GIF_ERROR) {
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
if (*buf == NULL) break; // Finished.
|
||||||
|
subblock.size = is_xmp ? (*buf)[0] + 1 : (*buf)[0];
|
||||||
|
assert(subblock.size > 0);
|
||||||
|
subblock.bytes = is_xmp ? *buf : *buf + 1;
|
||||||
|
// Note: We store returned value in 'tmp' first, to avoid
|
||||||
|
// leaking old memory in metadata->bytes on error.
|
||||||
|
tmp = (uint8_t*)realloc((void*)metadata->bytes,
|
||||||
|
metadata->size + subblock.size);
|
||||||
|
if (tmp == NULL) {
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
memcpy((void*)(tmp + metadata->size),
|
||||||
|
subblock.bytes, subblock.size);
|
||||||
|
metadata->bytes = tmp;
|
||||||
|
metadata->size += subblock.size;
|
||||||
|
}
|
||||||
|
if (is_xmp) {
|
||||||
|
// XMP padding data is 0x01, 0xff, 0xfe ... 0x01, 0x00.
|
||||||
|
const size_t xmp_pading_size = 257;
|
||||||
|
if (metadata->size > xmp_pading_size) {
|
||||||
|
metadata->size -= xmp_pading_size;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
return 1;
|
||||||
|
}
|
||||||
|
|
||||||
|
static void ClearRectangle(WebPPicture* const picture,
|
||||||
|
int left, int top, int width, int height) {
|
||||||
|
int i, j;
|
||||||
|
const size_t stride = picture->argb_stride;
|
||||||
|
uint32_t* dst = picture->argb + top * stride + left;
|
||||||
|
for (j = 0; j < height; ++j, dst += stride) {
|
||||||
|
for (i = 0; i < width; ++i) dst[i] = GIF_TRANSPARENT_COLOR;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
void GIFClearPic(WebPPicture* const pic, const GIFFrameRect* const rect) {
|
||||||
|
if (rect != NULL) {
|
||||||
|
ClearRectangle(pic, rect->x_offset, rect->y_offset,
|
||||||
|
rect->width, rect->height);
|
||||||
|
} else {
|
||||||
|
ClearRectangle(pic, 0, 0, pic->width, pic->height);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
void GIFCopyPixels(const WebPPicture* const src, WebPPicture* const dst) {
|
||||||
|
WebPCopyPixels(src, dst);
|
||||||
|
}
|
||||||
|
|
||||||
|
void GIFDisposeFrame(GIFDisposeMethod dispose, const GIFFrameRect* const rect,
|
||||||
|
const WebPPicture* const prev_canvas,
|
||||||
|
WebPPicture* const curr_canvas) {
|
||||||
|
assert(rect != NULL);
|
||||||
|
if (dispose == GIF_DISPOSE_BACKGROUND) {
|
||||||
|
GIFClearPic(curr_canvas, rect);
|
||||||
|
} else if (dispose == GIF_DISPOSE_RESTORE_PREVIOUS) {
|
||||||
|
const size_t src_stride = prev_canvas->argb_stride;
|
||||||
|
const uint32_t* const src = prev_canvas->argb + rect->x_offset
|
||||||
|
+ rect->y_offset * src_stride;
|
||||||
|
const size_t dst_stride = curr_canvas->argb_stride;
|
||||||
|
uint32_t* const dst = curr_canvas->argb + rect->x_offset
|
||||||
|
+ rect->y_offset * dst_stride;
|
||||||
|
assert(prev_canvas != NULL);
|
||||||
|
WebPCopyPlane((uint8_t*)src, (int)(4 * src_stride),
|
||||||
|
(uint8_t*)dst, (int)(4 * dst_stride),
|
||||||
|
4 * rect->width, rect->height);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
void GIFBlendFrames(const WebPPicture* const src,
|
||||||
|
const GIFFrameRect* const rect, WebPPicture* const dst) {
|
||||||
|
int i, j;
|
||||||
|
const size_t src_stride = src->argb_stride;
|
||||||
|
const size_t dst_stride = dst->argb_stride;
|
||||||
|
assert(src->width == dst->width && src->height == dst->height);
|
||||||
|
for (j = rect->y_offset; j < rect->y_offset + rect->height; ++j) {
|
||||||
|
for (i = rect->x_offset; i < rect->x_offset + rect->width; ++i) {
|
||||||
|
const uint32_t src_pixel = src->argb[j * src_stride + i];
|
||||||
|
const int src_alpha = src_pixel >> 24;
|
||||||
|
if (src_alpha != 0) {
|
||||||
|
dst->argb[j * dst_stride + i] = src_pixel;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
void GIFDisplayError(const GifFileType* const gif, int gif_error) {
|
||||||
|
// libgif 4.2.0 has retired PrintGifError() and added GifErrorString().
|
||||||
|
#if LOCAL_GIF_PREREQ(4,2)
|
||||||
|
#if LOCAL_GIF_PREREQ(5,0)
|
||||||
|
// Static string actually, hence the const char* cast.
|
||||||
|
const char* error_str = (const char*)GifErrorString(
|
||||||
|
(gif == NULL) ? gif_error : gif->Error);
|
||||||
|
#else
|
||||||
|
const char* error_str = (const char*)GifErrorString();
|
||||||
|
(void)gif;
|
||||||
|
#endif
|
||||||
|
if (error_str == NULL) error_str = "Unknown error";
|
||||||
|
fprintf(stderr, "GIFLib Error %d: %s\n", gif_error, error_str);
|
||||||
|
#else
|
||||||
|
(void)gif;
|
||||||
|
fprintf(stderr, "GIFLib Error %d: ", gif_error);
|
||||||
|
PrintGifError();
|
||||||
|
fprintf(stderr, "\n");
|
||||||
|
#endif
|
||||||
|
}
|
||||||
|
|
||||||
|
#else // !WEBP_HAVE_GIF
|
||||||
|
|
||||||
|
static void ErrorGIFNotAvailable() {
|
||||||
|
fprintf(stderr, "GIF support not compiled. Please install the libgif-dev "
|
||||||
|
"package before building.\n");
|
||||||
|
}
|
||||||
|
|
||||||
|
void GIFGetBackgroundColor(const struct ColorMapObject* const color_map,
|
||||||
|
int bgcolor_index, int transparent_index,
|
||||||
|
uint32_t* const bgcolor) {
|
||||||
|
(void)color_map;
|
||||||
|
(void)bgcolor_index;
|
||||||
|
(void)transparent_index;
|
||||||
|
(void)bgcolor;
|
||||||
|
ErrorGIFNotAvailable();
|
||||||
|
}
|
||||||
|
|
||||||
|
int GIFReadGraphicsExtension(const GifByteType* const data, int* const duration,
|
||||||
|
GIFDisposeMethod* const dispose,
|
||||||
|
int* const transparent_index) {
|
||||||
|
(void)data;
|
||||||
|
(void)duration;
|
||||||
|
(void)dispose;
|
||||||
|
(void)transparent_index;
|
||||||
|
ErrorGIFNotAvailable();
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
int GIFReadFrame(struct GifFileType* const gif, int transparent_index,
|
||||||
|
GIFFrameRect* const gif_rect,
|
||||||
|
struct WebPPicture* const picture) {
|
||||||
|
(void)gif;
|
||||||
|
(void)transparent_index;
|
||||||
|
(void)gif_rect;
|
||||||
|
(void)picture;
|
||||||
|
ErrorGIFNotAvailable();
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
int GIFReadLoopCount(struct GifFileType* const gif, GifByteType** const buf,
|
||||||
|
int* const loop_count) {
|
||||||
|
(void)gif;
|
||||||
|
(void)buf;
|
||||||
|
(void)loop_count;
|
||||||
|
ErrorGIFNotAvailable();
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
int GIFReadMetadata(struct GifFileType* const gif, GifByteType** const buf,
|
||||||
|
struct WebPData* const metadata) {
|
||||||
|
(void)gif;
|
||||||
|
(void)buf;
|
||||||
|
(void)metadata;
|
||||||
|
ErrorGIFNotAvailable();
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
void GIFDisposeFrame(GIFDisposeMethod dispose, const GIFFrameRect* const rect,
|
||||||
|
const struct WebPPicture* const prev_canvas,
|
||||||
|
struct WebPPicture* const curr_canvas) {
|
||||||
|
(void)dispose;
|
||||||
|
(void)rect;
|
||||||
|
(void)prev_canvas;
|
||||||
|
(void)curr_canvas;
|
||||||
|
ErrorGIFNotAvailable();
|
||||||
|
}
|
||||||
|
|
||||||
|
void GIFBlendFrames(const struct WebPPicture* const src,
|
||||||
|
const GIFFrameRect* const rect,
|
||||||
|
struct WebPPicture* const dst) {
|
||||||
|
(void)src;
|
||||||
|
(void)rect;
|
||||||
|
(void)dst;
|
||||||
|
ErrorGIFNotAvailable();
|
||||||
|
}
|
||||||
|
|
||||||
|
void GIFDisplayError(const struct GifFileType* const gif, int gif_error) {
|
||||||
|
(void)gif;
|
||||||
|
(void)gif_error;
|
||||||
|
ErrorGIFNotAvailable();
|
||||||
|
}
|
||||||
|
|
||||||
|
void GIFClearPic(struct WebPPicture* const pic,
|
||||||
|
const GIFFrameRect* const rect) {
|
||||||
|
(void)pic;
|
||||||
|
(void)rect;
|
||||||
|
ErrorGIFNotAvailable();
|
||||||
|
}
|
||||||
|
|
||||||
|
void GIFCopyPixels(const struct WebPPicture* const src,
|
||||||
|
struct WebPPicture* const dst) {
|
||||||
|
(void)src;
|
||||||
|
(void)dst;
|
||||||
|
ErrorGIFNotAvailable();
|
||||||
|
}
|
||||||
|
|
||||||
|
#endif // WEBP_HAVE_GIF
|
||||||
|
|
||||||
|
// -----------------------------------------------------------------------------
|
116
examples/gifdec.h
Normal file
116
examples/gifdec.h
Normal file
@ -0,0 +1,116 @@
|
|||||||
|
// Copyright 2014 Google Inc. All Rights Reserved.
|
||||||
|
//
|
||||||
|
// Use of this source code is governed by a BSD-style license
|
||||||
|
// that can be found in the COPYING file in the root of the source
|
||||||
|
// tree. An additional intellectual property rights grant can be found
|
||||||
|
// in the file PATENTS. All contributing project authors may
|
||||||
|
// be found in the AUTHORS file in the root of the source tree.
|
||||||
|
// -----------------------------------------------------------------------------
|
||||||
|
//
|
||||||
|
// GIF decode.
|
||||||
|
|
||||||
|
#ifndef WEBP_EXAMPLES_GIFDEC_H_
|
||||||
|
#define WEBP_EXAMPLES_GIFDEC_H_
|
||||||
|
|
||||||
|
#include <stdio.h>
|
||||||
|
#include "webp/types.h"
|
||||||
|
|
||||||
|
#ifdef HAVE_CONFIG_H
|
||||||
|
#include "webp/config.h"
|
||||||
|
#endif
|
||||||
|
|
||||||
|
#ifdef WEBP_HAVE_GIF
|
||||||
|
#include <gif_lib.h>
|
||||||
|
#endif
|
||||||
|
|
||||||
|
#ifdef __cplusplus
|
||||||
|
extern "C" {
|
||||||
|
#endif
|
||||||
|
|
||||||
|
// GIFLIB_MAJOR is only defined in libgif >= 4.2.0.
|
||||||
|
#if defined(GIFLIB_MAJOR) && defined(GIFLIB_MINOR)
|
||||||
|
# define LOCAL_GIF_VERSION ((GIFLIB_MAJOR << 8) | GIFLIB_MINOR)
|
||||||
|
# define LOCAL_GIF_PREREQ(maj, min) \
|
||||||
|
(LOCAL_GIF_VERSION >= (((maj) << 8) | (min)))
|
||||||
|
#else
|
||||||
|
# define LOCAL_GIF_VERSION 0
|
||||||
|
# define LOCAL_GIF_PREREQ(maj, min) 0
|
||||||
|
#endif
|
||||||
|
|
||||||
|
#define GIF_INDEX_INVALID (-1)
|
||||||
|
|
||||||
|
typedef enum GIFDisposeMethod {
|
||||||
|
GIF_DISPOSE_NONE,
|
||||||
|
GIF_DISPOSE_BACKGROUND,
|
||||||
|
GIF_DISPOSE_RESTORE_PREVIOUS
|
||||||
|
} GIFDisposeMethod;
|
||||||
|
|
||||||
|
typedef struct {
|
||||||
|
int x_offset, y_offset, width, height;
|
||||||
|
} GIFFrameRect;
|
||||||
|
|
||||||
|
struct WebPData;
|
||||||
|
struct WebPPicture;
|
||||||
|
|
||||||
|
#ifndef WEBP_HAVE_GIF
|
||||||
|
struct ColorMapObject;
|
||||||
|
struct GifFileType;
|
||||||
|
typedef unsigned char GifByteType;
|
||||||
|
#endif
|
||||||
|
|
||||||
|
// Given the index of background color and transparent color, returns the
|
||||||
|
// corresponding background color (in BGRA format) in 'bgcolor'.
|
||||||
|
void GIFGetBackgroundColor(const struct ColorMapObject* const color_map,
|
||||||
|
int bgcolor_index, int transparent_index,
|
||||||
|
uint32_t* const bgcolor);
|
||||||
|
|
||||||
|
// Parses the given graphics extension data to get frame duration (in 1ms
|
||||||
|
// units), dispose method and transparent color index.
|
||||||
|
// Returns true on success.
|
||||||
|
int GIFReadGraphicsExtension(const GifByteType* const buf, int* const duration,
|
||||||
|
GIFDisposeMethod* const dispose,
|
||||||
|
int* const transparent_index);
|
||||||
|
|
||||||
|
// Reads the next GIF frame from 'gif' into 'picture'. Also, returns the GIF
|
||||||
|
// frame dimensions and offsets in 'rect'.
|
||||||
|
// Returns true on success.
|
||||||
|
int GIFReadFrame(struct GifFileType* const gif, int transparent_index,
|
||||||
|
GIFFrameRect* const gif_rect,
|
||||||
|
struct WebPPicture* const picture);
|
||||||
|
|
||||||
|
// Parses loop count from the given Netscape extension data.
|
||||||
|
int GIFReadLoopCount(struct GifFileType* const gif, GifByteType** const buf,
|
||||||
|
int* const loop_count);
|
||||||
|
|
||||||
|
// Parses the given ICC or XMP extension data and stores it into 'metadata'.
|
||||||
|
// Returns true on success.
|
||||||
|
int GIFReadMetadata(struct GifFileType* const gif, GifByteType** const buf,
|
||||||
|
struct WebPData* const metadata);
|
||||||
|
|
||||||
|
// Dispose the pixels within 'rect' of 'curr_canvas' based on 'dispose' method
|
||||||
|
// and 'prev_canvas'.
|
||||||
|
void GIFDisposeFrame(GIFDisposeMethod dispose, const GIFFrameRect* const rect,
|
||||||
|
const struct WebPPicture* const prev_canvas,
|
||||||
|
struct WebPPicture* const curr_canvas);
|
||||||
|
|
||||||
|
// Given 'src' picture and its frame rectangle 'rect', blend it into 'dst'.
|
||||||
|
void GIFBlendFrames(const struct WebPPicture* const src,
|
||||||
|
const GIFFrameRect* const rect,
|
||||||
|
struct WebPPicture* const dst);
|
||||||
|
|
||||||
|
// Prints an error string based on 'gif_error'.
|
||||||
|
void GIFDisplayError(const struct GifFileType* const gif, int gif_error);
|
||||||
|
|
||||||
|
// In the given 'pic', clear the pixels in 'rect' to transparent color.
|
||||||
|
void GIFClearPic(struct WebPPicture* const pic, const GIFFrameRect* const rect);
|
||||||
|
|
||||||
|
// Copy pixels from 'src' to 'dst' honoring strides. 'src' and 'dst' are assumed
|
||||||
|
// to be already allocated.
|
||||||
|
void GIFCopyPixels(const struct WebPPicture* const src,
|
||||||
|
struct WebPPicture* const dst);
|
||||||
|
|
||||||
|
#ifdef __cplusplus
|
||||||
|
} // extern "C"
|
||||||
|
#endif
|
||||||
|
|
||||||
|
#endif // WEBP_EXAMPLES_GIFDEC_H_
|
339
examples/img2webp.c
Normal file
339
examples/img2webp.c
Normal file
@ -0,0 +1,339 @@
|
|||||||
|
// Copyright 2016 Google Inc. All Rights Reserved.
|
||||||
|
//
|
||||||
|
// Use of this source code is governed by a BSD-style license
|
||||||
|
// that can be found in the COPYING file in the root of the source
|
||||||
|
// tree. An additional intellectual property rights grant can be found
|
||||||
|
// in the file PATENTS. All contributing project authors may
|
||||||
|
// be found in the AUTHORS file in the root of the source tree.
|
||||||
|
// -----------------------------------------------------------------------------
|
||||||
|
//
|
||||||
|
// generate an animated WebP out of a sequence of images
|
||||||
|
// (PNG, JPEG, ...)
|
||||||
|
//
|
||||||
|
// Example usage:
|
||||||
|
// img2webp -o out.webp -q 40 -mixed -duration 40 input??.png
|
||||||
|
//
|
||||||
|
// Author: skal@google.com (Pascal Massimino)
|
||||||
|
|
||||||
|
#include <stdio.h>
|
||||||
|
#include <stdlib.h>
|
||||||
|
#include <string.h>
|
||||||
|
|
||||||
|
#ifdef HAVE_CONFIG_H
|
||||||
|
#include "webp/config.h"
|
||||||
|
#endif
|
||||||
|
|
||||||
|
#include "../examples/example_util.h"
|
||||||
|
#include "../imageio/image_dec.h"
|
||||||
|
#include "../imageio/imageio_util.h"
|
||||||
|
#include "./stopwatch.h"
|
||||||
|
#include "./unicode.h"
|
||||||
|
#include "sharpyuv/sharpyuv.h"
|
||||||
|
#include "webp/encode.h"
|
||||||
|
#include "webp/mux.h"
|
||||||
|
|
||||||
|
//------------------------------------------------------------------------------
|
||||||
|
|
||||||
|
static void Help(void) {
|
||||||
|
printf("Usage:\n\n");
|
||||||
|
printf(" img2webp [file_options] [[frame_options] frame_file]...");
|
||||||
|
printf(" [-o webp_file]\n\n");
|
||||||
|
|
||||||
|
printf("File-level options (only used at the start of compression):\n");
|
||||||
|
printf(" -min_size ............ minimize size\n");
|
||||||
|
printf(" -kmax <int> .......... maximum number of frame between key-frames\n"
|
||||||
|
" (0=only keyframes)\n");
|
||||||
|
printf(" -kmin <int> .......... minimum number of frame between key-frames\n"
|
||||||
|
" (0=disable key-frames altogether)\n");
|
||||||
|
printf(" -mixed ............... use mixed lossy/lossless automatic mode\n");
|
||||||
|
printf(" -near_lossless <int> . use near-lossless image preprocessing\n"
|
||||||
|
" (0..100=off), default=100\n");
|
||||||
|
printf(" -sharp_yuv ........... use sharper (and slower) RGB->YUV "
|
||||||
|
"conversion\n "
|
||||||
|
"(lossy only)\n");
|
||||||
|
printf(" -loop <int> .......... loop count (default: 0, = infinite loop)\n");
|
||||||
|
printf(" -v ................... verbose mode\n");
|
||||||
|
printf(" -h ................... this help\n");
|
||||||
|
printf(" -version ............. print version number and exit\n");
|
||||||
|
printf("\n");
|
||||||
|
|
||||||
|
printf("Per-frame options (only used for subsequent images input):\n");
|
||||||
|
printf(" -d <int> ............. frame duration in ms (default: 100)\n");
|
||||||
|
printf(" -lossless ........... use lossless mode (default)\n");
|
||||||
|
printf(" -lossy ... ........... use lossy mode\n");
|
||||||
|
printf(" -q <float> ........... quality\n");
|
||||||
|
printf(" -m <int> ............. method to use\n");
|
||||||
|
|
||||||
|
printf("\n");
|
||||||
|
printf("example: img2webp -loop 2 in0.png -lossy in1.jpg\n"
|
||||||
|
" -d 80 in2.tiff -o out.webp\n");
|
||||||
|
printf("\nNote: if a single file name is passed as the argument, the "
|
||||||
|
"arguments will be\n");
|
||||||
|
printf("tokenized from this file. The file name must not start with "
|
||||||
|
"the character '-'.\n");
|
||||||
|
printf("\nSupported input formats:\n %s\n",
|
||||||
|
WebPGetEnabledInputFileFormats());
|
||||||
|
}
|
||||||
|
|
||||||
|
//------------------------------------------------------------------------------
|
||||||
|
|
||||||
|
static int ReadImage(const char filename[], WebPPicture* const pic) {
|
||||||
|
const uint8_t* data = NULL;
|
||||||
|
size_t data_size = 0;
|
||||||
|
WebPImageReader reader;
|
||||||
|
int ok;
|
||||||
|
#ifdef HAVE_WINCODEC_H
|
||||||
|
// Try to decode the file using WIC falling back to the other readers for
|
||||||
|
// e.g., WebP.
|
||||||
|
ok = ReadPictureWithWIC(filename, pic, 1, NULL);
|
||||||
|
if (ok) return 1;
|
||||||
|
#endif
|
||||||
|
if (!ImgIoUtilReadFile(filename, &data, &data_size)) return 0;
|
||||||
|
reader = WebPGuessImageReader(data, data_size);
|
||||||
|
ok = reader(data, data_size, pic, 1, NULL);
|
||||||
|
WebPFree((void*)data);
|
||||||
|
return ok;
|
||||||
|
}
|
||||||
|
|
||||||
|
static int SetLoopCount(int loop_count, WebPData* const webp_data) {
|
||||||
|
int ok = 1;
|
||||||
|
WebPMuxError err;
|
||||||
|
uint32_t features;
|
||||||
|
WebPMuxAnimParams new_params;
|
||||||
|
WebPMux* const mux = WebPMuxCreate(webp_data, 1);
|
||||||
|
if (mux == NULL) return 0;
|
||||||
|
|
||||||
|
err = WebPMuxGetFeatures(mux, &features);
|
||||||
|
ok = (err == WEBP_MUX_OK);
|
||||||
|
if (!ok || !(features & ANIMATION_FLAG)) goto End;
|
||||||
|
|
||||||
|
err = WebPMuxGetAnimationParams(mux, &new_params);
|
||||||
|
ok = (err == WEBP_MUX_OK);
|
||||||
|
if (ok) {
|
||||||
|
new_params.loop_count = loop_count;
|
||||||
|
err = WebPMuxSetAnimationParams(mux, &new_params);
|
||||||
|
ok = (err == WEBP_MUX_OK);
|
||||||
|
}
|
||||||
|
if (ok) {
|
||||||
|
WebPDataClear(webp_data);
|
||||||
|
err = WebPMuxAssemble(mux, webp_data);
|
||||||
|
ok = (err == WEBP_MUX_OK);
|
||||||
|
}
|
||||||
|
|
||||||
|
End:
|
||||||
|
WebPMuxDelete(mux);
|
||||||
|
if (!ok) {
|
||||||
|
fprintf(stderr, "Error during loop-count setting\n");
|
||||||
|
}
|
||||||
|
return ok;
|
||||||
|
}
|
||||||
|
|
||||||
|
//------------------------------------------------------------------------------
|
||||||
|
|
||||||
|
int main(int argc, const char* argv[]) {
|
||||||
|
const char* output = NULL;
|
||||||
|
WebPAnimEncoder* enc = NULL;
|
||||||
|
int verbose = 0;
|
||||||
|
int pic_num = 0;
|
||||||
|
int duration = 100;
|
||||||
|
int timestamp_ms = 0;
|
||||||
|
int loop_count = 0;
|
||||||
|
int width = 0, height = 0;
|
||||||
|
WebPAnimEncoderOptions anim_config;
|
||||||
|
WebPConfig config;
|
||||||
|
WebPPicture pic;
|
||||||
|
WebPData webp_data;
|
||||||
|
int c;
|
||||||
|
int have_input = 0;
|
||||||
|
CommandLineArguments cmd_args;
|
||||||
|
int ok;
|
||||||
|
|
||||||
|
INIT_WARGV(argc, argv);
|
||||||
|
|
||||||
|
ok = ExUtilInitCommandLineArguments(argc - 1, argv + 1, &cmd_args);
|
||||||
|
if (!ok) FREE_WARGV_AND_RETURN(1);
|
||||||
|
|
||||||
|
argc = cmd_args.argc_;
|
||||||
|
argv = cmd_args.argv_;
|
||||||
|
|
||||||
|
WebPDataInit(&webp_data);
|
||||||
|
if (!WebPAnimEncoderOptionsInit(&anim_config) ||
|
||||||
|
!WebPConfigInit(&config) ||
|
||||||
|
!WebPPictureInit(&pic)) {
|
||||||
|
fprintf(stderr, "Library version mismatch!\n");
|
||||||
|
ok = 0;
|
||||||
|
goto End;
|
||||||
|
}
|
||||||
|
|
||||||
|
// 1st pass of option parsing
|
||||||
|
for (c = 0; ok && c < argc; ++c) {
|
||||||
|
if (argv[c][0] == '-') {
|
||||||
|
int parse_error = 0;
|
||||||
|
if (!strcmp(argv[c], "-o") && c + 1 < argc) {
|
||||||
|
argv[c] = NULL;
|
||||||
|
output = (const char*)GET_WARGV_SHIFTED(argv, ++c);
|
||||||
|
} else if (!strcmp(argv[c], "-kmin") && c + 1 < argc) {
|
||||||
|
argv[c] = NULL;
|
||||||
|
anim_config.kmin = ExUtilGetInt(argv[++c], 0, &parse_error);
|
||||||
|
} else if (!strcmp(argv[c], "-kmax") && c + 1 < argc) {
|
||||||
|
argv[c] = NULL;
|
||||||
|
anim_config.kmax = ExUtilGetInt(argv[++c], 0, &parse_error);
|
||||||
|
} else if (!strcmp(argv[c], "-loop") && c + 1 < argc) {
|
||||||
|
argv[c] = NULL;
|
||||||
|
loop_count = ExUtilGetInt(argv[++c], 0, &parse_error);
|
||||||
|
if (loop_count < 0) {
|
||||||
|
fprintf(stderr, "Invalid non-positive loop-count (%d)\n", loop_count);
|
||||||
|
parse_error = 1;
|
||||||
|
}
|
||||||
|
} else if (!strcmp(argv[c], "-min_size")) {
|
||||||
|
anim_config.minimize_size = 1;
|
||||||
|
} else if (!strcmp(argv[c], "-mixed")) {
|
||||||
|
anim_config.allow_mixed = 1;
|
||||||
|
config.lossless = 0;
|
||||||
|
} else if (!strcmp(argv[c], "-near_lossless") && c + 1 < argc) {
|
||||||
|
argv[c] = NULL;
|
||||||
|
config.near_lossless = ExUtilGetInt(argv[++c], 0, &parse_error);
|
||||||
|
} else if (!strcmp(argv[c], "-sharp_yuv")) {
|
||||||
|
config.use_sharp_yuv = 1;
|
||||||
|
} else if (!strcmp(argv[c], "-v")) {
|
||||||
|
verbose = 1;
|
||||||
|
} else if (!strcmp(argv[c], "-h") || !strcmp(argv[c], "-help")) {
|
||||||
|
Help();
|
||||||
|
FREE_WARGV_AND_RETURN(0);
|
||||||
|
} else if (!strcmp(argv[c], "-version")) {
|
||||||
|
const int enc_version = WebPGetEncoderVersion();
|
||||||
|
const int mux_version = WebPGetMuxVersion();
|
||||||
|
const int sharpyuv_version = SharpYuvGetVersion();
|
||||||
|
printf("WebP Encoder version: %d.%d.%d\nWebP Mux version: %d.%d.%d\n",
|
||||||
|
(enc_version >> 16) & 0xff, (enc_version >> 8) & 0xff,
|
||||||
|
enc_version & 0xff, (mux_version >> 16) & 0xff,
|
||||||
|
(mux_version >> 8) & 0xff, mux_version & 0xff);
|
||||||
|
printf("libsharpyuv: %d.%d.%d\n", (sharpyuv_version >> 24) & 0xff,
|
||||||
|
(sharpyuv_version >> 16) & 0xffff, sharpyuv_version & 0xff);
|
||||||
|
goto End;
|
||||||
|
} else {
|
||||||
|
continue;
|
||||||
|
}
|
||||||
|
ok = !parse_error;
|
||||||
|
if (!ok) goto End;
|
||||||
|
argv[c] = NULL; // mark option as 'parsed' during 1st pass
|
||||||
|
} else {
|
||||||
|
have_input |= 1;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
if (!have_input) {
|
||||||
|
fprintf(stderr, "No input file(s) for generating animation!\n");
|
||||||
|
goto End;
|
||||||
|
}
|
||||||
|
|
||||||
|
// image-reading pass
|
||||||
|
pic_num = 0;
|
||||||
|
config.lossless = 1;
|
||||||
|
for (c = 0; ok && c < argc; ++c) {
|
||||||
|
if (argv[c] == NULL) continue;
|
||||||
|
if (argv[c][0] == '-') { // parse local options
|
||||||
|
int parse_error = 0;
|
||||||
|
if (!strcmp(argv[c], "-lossy")) {
|
||||||
|
if (!anim_config.allow_mixed) config.lossless = 0;
|
||||||
|
} else if (!strcmp(argv[c], "-lossless")) {
|
||||||
|
if (!anim_config.allow_mixed) config.lossless = 1;
|
||||||
|
} else if (!strcmp(argv[c], "-q") && c + 1 < argc) {
|
||||||
|
config.quality = ExUtilGetFloat(argv[++c], &parse_error);
|
||||||
|
} else if (!strcmp(argv[c], "-m") && c + 1 < argc) {
|
||||||
|
config.method = ExUtilGetInt(argv[++c], 0, &parse_error);
|
||||||
|
} else if (!strcmp(argv[c], "-d") && c + 1 < argc) {
|
||||||
|
duration = ExUtilGetInt(argv[++c], 0, &parse_error);
|
||||||
|
if (duration <= 0) {
|
||||||
|
fprintf(stderr, "Invalid negative duration (%d)\n", duration);
|
||||||
|
parse_error = 1;
|
||||||
|
}
|
||||||
|
} else {
|
||||||
|
parse_error = 1; // shouldn't be here.
|
||||||
|
fprintf(stderr, "Unknown option [%s]\n", argv[c]);
|
||||||
|
}
|
||||||
|
ok = !parse_error;
|
||||||
|
if (!ok) goto End;
|
||||||
|
continue;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (ok) {
|
||||||
|
ok = WebPValidateConfig(&config);
|
||||||
|
if (!ok) {
|
||||||
|
fprintf(stderr, "Invalid configuration.\n");
|
||||||
|
goto End;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
// read next input image
|
||||||
|
pic.use_argb = 1;
|
||||||
|
ok = ReadImage((const char*)GET_WARGV_SHIFTED(argv, c), &pic);
|
||||||
|
if (!ok) goto End;
|
||||||
|
|
||||||
|
if (enc == NULL) {
|
||||||
|
width = pic.width;
|
||||||
|
height = pic.height;
|
||||||
|
enc = WebPAnimEncoderNew(width, height, &anim_config);
|
||||||
|
ok = (enc != NULL);
|
||||||
|
if (!ok) {
|
||||||
|
fprintf(stderr, "Could not create WebPAnimEncoder object.\n");
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
if (ok) {
|
||||||
|
ok = (width == pic.width && height == pic.height);
|
||||||
|
if (!ok) {
|
||||||
|
fprintf(stderr, "Frame #%d dimension mismatched! "
|
||||||
|
"Got %d x %d. Was expecting %d x %d.\n",
|
||||||
|
pic_num, pic.width, pic.height, width, height);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
if (ok) {
|
||||||
|
ok = WebPAnimEncoderAdd(enc, &pic, timestamp_ms, &config);
|
||||||
|
if (!ok) {
|
||||||
|
fprintf(stderr, "Error while adding frame #%d\n", pic_num);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
WebPPictureFree(&pic);
|
||||||
|
if (!ok) goto End;
|
||||||
|
|
||||||
|
if (verbose) {
|
||||||
|
WFPRINTF(stderr, "Added frame #%3d at time %4d (file: %s)\n",
|
||||||
|
pic_num, timestamp_ms, GET_WARGV_SHIFTED(argv, c));
|
||||||
|
}
|
||||||
|
timestamp_ms += duration;
|
||||||
|
++pic_num;
|
||||||
|
}
|
||||||
|
|
||||||
|
// add a last fake frame to signal the last duration
|
||||||
|
ok = ok && WebPAnimEncoderAdd(enc, NULL, timestamp_ms, NULL);
|
||||||
|
ok = ok && WebPAnimEncoderAssemble(enc, &webp_data);
|
||||||
|
if (!ok) {
|
||||||
|
fprintf(stderr, "Error during final animation assembly.\n");
|
||||||
|
}
|
||||||
|
|
||||||
|
End:
|
||||||
|
// free resources
|
||||||
|
WebPAnimEncoderDelete(enc);
|
||||||
|
|
||||||
|
if (ok && loop_count > 0) { // Re-mux to add loop count.
|
||||||
|
ok = SetLoopCount(loop_count, &webp_data);
|
||||||
|
}
|
||||||
|
|
||||||
|
if (ok) {
|
||||||
|
if (output != NULL) {
|
||||||
|
ok = ImgIoUtilWriteFile(output, webp_data.bytes, webp_data.size);
|
||||||
|
if (ok) WFPRINTF(stderr, "output file: %s ", (const W_CHAR*)output);
|
||||||
|
} else {
|
||||||
|
fprintf(stderr, "[no output file specified] ");
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
if (ok) {
|
||||||
|
fprintf(stderr, "[%d frames, %u bytes].\n",
|
||||||
|
pic_num, (unsigned int)webp_data.size);
|
||||||
|
}
|
||||||
|
WebPDataClear(&webp_data);
|
||||||
|
ExUtilDeleteCommandLineArguments(&cmd_args);
|
||||||
|
FREE_WARGV_AND_RETURN(ok ? 0 : 1);
|
||||||
|
}
|
63
examples/stopwatch.h
Normal file
63
examples/stopwatch.h
Normal file
@ -0,0 +1,63 @@
|
|||||||
|
// Copyright 2011 Google Inc. All Rights Reserved.
|
||||||
|
//
|
||||||
|
// Use of this source code is governed by a BSD-style license
|
||||||
|
// that can be found in the COPYING file in the root of the source
|
||||||
|
// tree. An additional intellectual property rights grant can be found
|
||||||
|
// in the file PATENTS. All contributing project authors may
|
||||||
|
// be found in the AUTHORS file in the root of the source tree.
|
||||||
|
// -----------------------------------------------------------------------------
|
||||||
|
//
|
||||||
|
// Helper functions to measure elapsed time.
|
||||||
|
//
|
||||||
|
// Author: Mikolaj Zalewski (mikolajz@google.com)
|
||||||
|
|
||||||
|
#ifndef WEBP_EXAMPLES_STOPWATCH_H_
|
||||||
|
#define WEBP_EXAMPLES_STOPWATCH_H_
|
||||||
|
|
||||||
|
#include "webp/types.h"
|
||||||
|
|
||||||
|
#if defined _WIN32 && !defined __GNUC__
|
||||||
|
#include <windows.h>
|
||||||
|
|
||||||
|
typedef LARGE_INTEGER Stopwatch;
|
||||||
|
|
||||||
|
static WEBP_INLINE void StopwatchReset(Stopwatch* watch) {
|
||||||
|
QueryPerformanceCounter(watch);
|
||||||
|
}
|
||||||
|
|
||||||
|
static WEBP_INLINE double StopwatchReadAndReset(Stopwatch* watch) {
|
||||||
|
const LARGE_INTEGER old_value = *watch;
|
||||||
|
LARGE_INTEGER freq;
|
||||||
|
if (!QueryPerformanceCounter(watch))
|
||||||
|
return 0.0;
|
||||||
|
if (!QueryPerformanceFrequency(&freq))
|
||||||
|
return 0.0;
|
||||||
|
if (freq.QuadPart == 0)
|
||||||
|
return 0.0;
|
||||||
|
return (watch->QuadPart - old_value.QuadPart) / (double)freq.QuadPart;
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
#else /* !_WIN32 */
|
||||||
|
#include <string.h> // memcpy
|
||||||
|
#include <sys/time.h>
|
||||||
|
|
||||||
|
typedef struct timeval Stopwatch;
|
||||||
|
|
||||||
|
static WEBP_INLINE void StopwatchReset(Stopwatch* watch) {
|
||||||
|
gettimeofday(watch, NULL);
|
||||||
|
}
|
||||||
|
|
||||||
|
static WEBP_INLINE double StopwatchReadAndReset(Stopwatch* watch) {
|
||||||
|
struct timeval old_value;
|
||||||
|
double delta_sec, delta_usec;
|
||||||
|
memcpy(&old_value, watch, sizeof(old_value));
|
||||||
|
gettimeofday(watch, NULL);
|
||||||
|
delta_sec = (double)watch->tv_sec - old_value.tv_sec;
|
||||||
|
delta_usec = (double)watch->tv_usec - old_value.tv_usec;
|
||||||
|
return delta_sec + delta_usec / 1000000.0;
|
||||||
|
}
|
||||||
|
|
||||||
|
#endif /* _WIN32 */
|
||||||
|
|
||||||
|
#endif // WEBP_EXAMPLES_STOPWATCH_H_
|
BIN
examples/test.webp
Normal file
BIN
examples/test.webp
Normal file
Binary file not shown.
After Width: | Height: | Size: 4.8 KiB |
4
examples/test_ref.ppm
Normal file
4
examples/test_ref.ppm
Normal file
File diff suppressed because one or more lines are too long
116
examples/unicode.h
Normal file
116
examples/unicode.h
Normal file
@ -0,0 +1,116 @@
|
|||||||
|
// Copyright 2018 Google Inc. All Rights Reserved.
|
||||||
|
//
|
||||||
|
// Use of this source code is governed by a BSD-style license
|
||||||
|
// that can be found in the COPYING file in the root of the source
|
||||||
|
// tree. An additional intellectual property rights grant can be found
|
||||||
|
// in the file PATENTS. All contributing project authors may
|
||||||
|
// be found in the AUTHORS file in the root of the source tree.
|
||||||
|
// -----------------------------------------------------------------------------
|
||||||
|
//
|
||||||
|
// Unicode support for Windows. The main idea is to maintain an array of Unicode
|
||||||
|
// arguments (wargv) and use it only for file paths. The regular argv is used
|
||||||
|
// for everything else.
|
||||||
|
//
|
||||||
|
// Author: Yannis Guyon (yguyon@google.com)
|
||||||
|
|
||||||
|
#ifndef WEBP_EXAMPLES_UNICODE_H_
|
||||||
|
#define WEBP_EXAMPLES_UNICODE_H_
|
||||||
|
|
||||||
|
#include <stdio.h>
|
||||||
|
|
||||||
|
#if defined(_WIN32) && defined(_UNICODE)
|
||||||
|
|
||||||
|
// wchar_t is used instead of TCHAR because we only perform additional work when
|
||||||
|
// Unicode is enabled and because the output of CommandLineToArgvW() is wchar_t.
|
||||||
|
|
||||||
|
#include <fcntl.h>
|
||||||
|
#include <io.h>
|
||||||
|
#include <wchar.h>
|
||||||
|
#include <windows.h>
|
||||||
|
#include <shellapi.h>
|
||||||
|
|
||||||
|
// Create a wchar_t array containing Unicode parameters.
|
||||||
|
#define INIT_WARGV(ARGC, ARGV) \
|
||||||
|
int wargc; \
|
||||||
|
const W_CHAR** const wargv = \
|
||||||
|
(const W_CHAR**)CommandLineToArgvW(GetCommandLineW(), &wargc); \
|
||||||
|
do { \
|
||||||
|
if (wargv == NULL || wargc != (ARGC)) { \
|
||||||
|
fprintf(stderr, "Error: Unable to get Unicode arguments.\n"); \
|
||||||
|
FREE_WARGV_AND_RETURN(-1); \
|
||||||
|
} \
|
||||||
|
} while (0)
|
||||||
|
|
||||||
|
// Use this to get a Unicode argument (e.g. file path).
|
||||||
|
#define GET_WARGV(UNUSED, C) wargv[C]
|
||||||
|
// For cases where argv is shifted by one compared to wargv.
|
||||||
|
#define GET_WARGV_SHIFTED(UNUSED, C) wargv[(C) + 1]
|
||||||
|
#define GET_WARGV_OR_NULL() wargv
|
||||||
|
|
||||||
|
// Release resources. LocalFree() is needed after CommandLineToArgvW().
|
||||||
|
#define FREE_WARGV() LOCAL_FREE((W_CHAR** const)wargv)
|
||||||
|
#define LOCAL_FREE(WARGV) \
|
||||||
|
do { \
|
||||||
|
if ((WARGV) != NULL) LocalFree(WARGV); \
|
||||||
|
} while (0)
|
||||||
|
|
||||||
|
#define W_CHAR wchar_t // WCHAR without underscore might already be defined.
|
||||||
|
#define TO_W_CHAR(STR) (L##STR)
|
||||||
|
|
||||||
|
#define WFOPEN(ARG, OPT) _wfopen((const W_CHAR*)ARG, TO_W_CHAR(OPT))
|
||||||
|
|
||||||
|
#define WFPRINTF(STREAM, STR, ...) \
|
||||||
|
do { \
|
||||||
|
int prev_mode; \
|
||||||
|
fflush(STREAM); \
|
||||||
|
prev_mode = _setmode(_fileno(STREAM), _O_U8TEXT); \
|
||||||
|
fwprintf(STREAM, TO_W_CHAR(STR), __VA_ARGS__); \
|
||||||
|
fflush(STREAM); \
|
||||||
|
(void)_setmode(_fileno(STREAM), prev_mode); \
|
||||||
|
} while (0)
|
||||||
|
#define WPRINTF(STR, ...) WFPRINTF(stdout, STR, __VA_ARGS__)
|
||||||
|
|
||||||
|
#define WSTRLEN(FILENAME) wcslen((const W_CHAR*)FILENAME)
|
||||||
|
#define WSTRCMP(FILENAME, STR) wcscmp((const W_CHAR*)FILENAME, TO_W_CHAR(STR))
|
||||||
|
#define WSTRRCHR(FILENAME, STR) wcsrchr((const W_CHAR*)FILENAME, TO_W_CHAR(STR))
|
||||||
|
#define WSNPRINTF(A, B, STR, ...) _snwprintf(A, B, TO_W_CHAR(STR), __VA_ARGS__)
|
||||||
|
|
||||||
|
#else
|
||||||
|
|
||||||
|
#include <string.h>
|
||||||
|
|
||||||
|
// Unicode file paths work as is on Unix platforms, and no extra work is done on
|
||||||
|
// Windows either if Unicode is disabled.
|
||||||
|
|
||||||
|
#define INIT_WARGV(ARGC, ARGV)
|
||||||
|
|
||||||
|
#define GET_WARGV(ARGV, C) (ARGV)[C]
|
||||||
|
#define GET_WARGV_SHIFTED(ARGV, C) (ARGV)[C]
|
||||||
|
#define GET_WARGV_OR_NULL() NULL
|
||||||
|
|
||||||
|
#define FREE_WARGV()
|
||||||
|
#define LOCAL_FREE(WARGV)
|
||||||
|
|
||||||
|
#define W_CHAR char
|
||||||
|
#define TO_W_CHAR(STR) (STR)
|
||||||
|
|
||||||
|
#define WFOPEN(ARG, OPT) fopen(ARG, OPT)
|
||||||
|
|
||||||
|
#define WPRINTF(STR, ...) printf(STR, __VA_ARGS__)
|
||||||
|
#define WFPRINTF(STREAM, STR, ...) fprintf(STREAM, STR, __VA_ARGS__)
|
||||||
|
|
||||||
|
#define WSTRLEN(FILENAME) strlen(FILENAME)
|
||||||
|
#define WSTRCMP(FILENAME, STR) strcmp(FILENAME, STR)
|
||||||
|
#define WSTRRCHR(FILENAME, STR) strrchr(FILENAME, STR)
|
||||||
|
#define WSNPRINTF(A, B, STR, ...) snprintf(A, B, STR, __VA_ARGS__)
|
||||||
|
|
||||||
|
#endif // defined(_WIN32) && defined(_UNICODE)
|
||||||
|
|
||||||
|
// Don't forget to free wargv before returning (e.g. from main).
|
||||||
|
#define FREE_WARGV_AND_RETURN(VALUE) \
|
||||||
|
do { \
|
||||||
|
FREE_WARGV(); \
|
||||||
|
return (VALUE); \
|
||||||
|
} while (0)
|
||||||
|
|
||||||
|
#endif // WEBP_EXAMPLES_UNICODE_H_
|
76
examples/unicode_gif.h
Normal file
76
examples/unicode_gif.h
Normal file
@ -0,0 +1,76 @@
|
|||||||
|
// Copyright 2018 Google Inc. All Rights Reserved.
|
||||||
|
//
|
||||||
|
// Use of this source code is governed by a BSD-style license
|
||||||
|
// that can be found in the COPYING file in the root of the source
|
||||||
|
// tree. An additional intellectual property rights grant can be found
|
||||||
|
// in the file PATENTS. All contributing project authors may
|
||||||
|
// be found in the AUTHORS file in the root of the source tree.
|
||||||
|
// -----------------------------------------------------------------------------
|
||||||
|
//
|
||||||
|
// giflib doesn't have a Unicode DGifOpenFileName(). Let's make one.
|
||||||
|
//
|
||||||
|
// Author: Yannis Guyon (yguyon@google.com)
|
||||||
|
|
||||||
|
#ifndef WEBP_EXAMPLES_UNICODE_GIF_H_
|
||||||
|
#define WEBP_EXAMPLES_UNICODE_GIF_H_
|
||||||
|
|
||||||
|
#include "./unicode.h"
|
||||||
|
#ifdef HAVE_CONFIG_H
|
||||||
|
#include "webp/config.h" // For WEBP_HAVE_GIF
|
||||||
|
#endif
|
||||||
|
|
||||||
|
#if defined(WEBP_HAVE_GIF)
|
||||||
|
|
||||||
|
#ifdef _WIN32
|
||||||
|
#include <fcntl.h> // Not standard, needed for _topen and flags.
|
||||||
|
#include <io.h>
|
||||||
|
#endif
|
||||||
|
|
||||||
|
#include <gif_lib.h>
|
||||||
|
#include <string.h>
|
||||||
|
#include "./gifdec.h"
|
||||||
|
|
||||||
|
#if !defined(STDIN_FILENO)
|
||||||
|
#define STDIN_FILENO 0
|
||||||
|
#endif
|
||||||
|
|
||||||
|
static GifFileType* DGifOpenFileUnicode(const W_CHAR* file_name, int* error) {
|
||||||
|
if (!WSTRCMP(file_name, "-")) {
|
||||||
|
#if LOCAL_GIF_PREREQ(5, 0)
|
||||||
|
return DGifOpenFileHandle(STDIN_FILENO, error);
|
||||||
|
#else
|
||||||
|
(void)error;
|
||||||
|
return DGifOpenFileHandle(STDIN_FILENO);
|
||||||
|
#endif
|
||||||
|
}
|
||||||
|
|
||||||
|
#if defined(_WIN32) && defined(_UNICODE)
|
||||||
|
{
|
||||||
|
int file_handle = _wopen(file_name, _O_RDONLY | _O_BINARY);
|
||||||
|
if (file_handle == -1) {
|
||||||
|
if (error != NULL) *error = D_GIF_ERR_OPEN_FAILED;
|
||||||
|
return NULL;
|
||||||
|
}
|
||||||
|
|
||||||
|
#if LOCAL_GIF_PREREQ(5, 0)
|
||||||
|
return DGifOpenFileHandle(file_handle, error);
|
||||||
|
#else
|
||||||
|
return DGifOpenFileHandle(file_handle);
|
||||||
|
#endif
|
||||||
|
}
|
||||||
|
|
||||||
|
#else
|
||||||
|
|
||||||
|
#if LOCAL_GIF_PREREQ(5, 0)
|
||||||
|
return DGifOpenFileName(file_name, error);
|
||||||
|
#else
|
||||||
|
return DGifOpenFileName(file_name);
|
||||||
|
#endif
|
||||||
|
|
||||||
|
#endif // defined(_WIN32) && defined(_UNICODE)
|
||||||
|
// DGifCloseFile() is called later.
|
||||||
|
}
|
||||||
|
|
||||||
|
#endif // defined(WEBP_HAVE_GIF)
|
||||||
|
|
||||||
|
#endif // WEBP_EXAMPLES_UNICODE_GIF_H_
|
654
examples/vwebp.c
Normal file
654
examples/vwebp.c
Normal file
@ -0,0 +1,654 @@
|
|||||||
|
// Copyright 2011 Google Inc. All Rights Reserved.
|
||||||
|
//
|
||||||
|
// Use of this source code is governed by a BSD-style license
|
||||||
|
// that can be found in the COPYING file in the root of the source
|
||||||
|
// tree. An additional intellectual property rights grant can be found
|
||||||
|
// in the file PATENTS. All contributing project authors may
|
||||||
|
// be found in the AUTHORS file in the root of the source tree.
|
||||||
|
// -----------------------------------------------------------------------------
|
||||||
|
//
|
||||||
|
// Simple OpenGL-based WebP file viewer.
|
||||||
|
//
|
||||||
|
// Author: Skal (pascal.massimino@gmail.com)
|
||||||
|
#ifdef HAVE_CONFIG_H
|
||||||
|
#include "webp/config.h"
|
||||||
|
#endif
|
||||||
|
|
||||||
|
#if defined(__unix__) || defined(__CYGWIN__)
|
||||||
|
#define _POSIX_C_SOURCE 200112L // for setenv
|
||||||
|
#endif
|
||||||
|
|
||||||
|
#include <stdio.h>
|
||||||
|
#include <stdlib.h>
|
||||||
|
#include <string.h>
|
||||||
|
|
||||||
|
#if defined(WEBP_HAVE_GL)
|
||||||
|
|
||||||
|
#if defined(HAVE_GLUT_GLUT_H)
|
||||||
|
#include <GLUT/glut.h>
|
||||||
|
#else
|
||||||
|
#include <GL/glut.h>
|
||||||
|
#ifdef FREEGLUT
|
||||||
|
#include <GL/freeglut.h>
|
||||||
|
#endif
|
||||||
|
#endif
|
||||||
|
|
||||||
|
#ifdef WEBP_HAVE_QCMS
|
||||||
|
#include <qcms.h>
|
||||||
|
#endif
|
||||||
|
|
||||||
|
#include "webp/decode.h"
|
||||||
|
#include "webp/demux.h"
|
||||||
|
|
||||||
|
#include "../examples/example_util.h"
|
||||||
|
#include "../imageio/imageio_util.h"
|
||||||
|
#include "./unicode.h"
|
||||||
|
|
||||||
|
#if defined(_MSC_VER) && _MSC_VER < 1900
|
||||||
|
#define snprintf _snprintf
|
||||||
|
#endif
|
||||||
|
|
||||||
|
// Unfortunate global variables. Gathered into a struct for comfort.
|
||||||
|
static struct {
|
||||||
|
int has_animation;
|
||||||
|
int has_color_profile;
|
||||||
|
int done;
|
||||||
|
int decoding_error;
|
||||||
|
int print_info;
|
||||||
|
int only_deltas;
|
||||||
|
int use_color_profile;
|
||||||
|
int draw_anim_background_color;
|
||||||
|
|
||||||
|
int canvas_width, canvas_height;
|
||||||
|
int loop_count;
|
||||||
|
uint32_t bg_color;
|
||||||
|
|
||||||
|
const char* file_name;
|
||||||
|
WebPData data;
|
||||||
|
WebPDecoderConfig config;
|
||||||
|
const WebPDecBuffer* pic;
|
||||||
|
WebPDemuxer* dmux;
|
||||||
|
WebPIterator curr_frame;
|
||||||
|
WebPIterator prev_frame;
|
||||||
|
WebPChunkIterator iccp;
|
||||||
|
int viewport_width, viewport_height;
|
||||||
|
} kParams;
|
||||||
|
|
||||||
|
static void ClearPreviousPic(void) {
|
||||||
|
WebPFreeDecBuffer((WebPDecBuffer*)kParams.pic);
|
||||||
|
kParams.pic = NULL;
|
||||||
|
}
|
||||||
|
|
||||||
|
static void ClearParams(void) {
|
||||||
|
ClearPreviousPic();
|
||||||
|
WebPDataClear(&kParams.data);
|
||||||
|
WebPDemuxReleaseIterator(&kParams.curr_frame);
|
||||||
|
WebPDemuxReleaseIterator(&kParams.prev_frame);
|
||||||
|
WebPDemuxReleaseChunkIterator(&kParams.iccp);
|
||||||
|
WebPDemuxDelete(kParams.dmux);
|
||||||
|
kParams.dmux = NULL;
|
||||||
|
}
|
||||||
|
|
||||||
|
// Sets the previous frame to the dimensions of the canvas and has it dispose
|
||||||
|
// to background to cause the canvas to be cleared.
|
||||||
|
static void ClearPreviousFrame(void) {
|
||||||
|
WebPIterator* const prev = &kParams.prev_frame;
|
||||||
|
prev->width = kParams.canvas_width;
|
||||||
|
prev->height = kParams.canvas_height;
|
||||||
|
prev->x_offset = prev->y_offset = 0;
|
||||||
|
prev->dispose_method = WEBP_MUX_DISPOSE_BACKGROUND;
|
||||||
|
}
|
||||||
|
|
||||||
|
// -----------------------------------------------------------------------------
|
||||||
|
// Color profile handling
|
||||||
|
static int ApplyColorProfile(const WebPData* const profile,
|
||||||
|
WebPDecBuffer* const rgba) {
|
||||||
|
#ifdef WEBP_HAVE_QCMS
|
||||||
|
int i, ok = 0;
|
||||||
|
uint8_t* line;
|
||||||
|
uint8_t major_revision;
|
||||||
|
qcms_profile* input_profile = NULL;
|
||||||
|
qcms_profile* output_profile = NULL;
|
||||||
|
qcms_transform* transform = NULL;
|
||||||
|
const qcms_data_type input_type = QCMS_DATA_RGBA_8;
|
||||||
|
const qcms_data_type output_type = QCMS_DATA_RGBA_8;
|
||||||
|
const qcms_intent intent = QCMS_INTENT_DEFAULT;
|
||||||
|
|
||||||
|
if (profile == NULL || rgba == NULL) return 0;
|
||||||
|
if (profile->bytes == NULL || profile->size < 10) return 1;
|
||||||
|
major_revision = profile->bytes[8];
|
||||||
|
|
||||||
|
qcms_enable_iccv4();
|
||||||
|
input_profile = qcms_profile_from_memory(profile->bytes, profile->size);
|
||||||
|
// qcms_profile_is_bogus() is broken with ICCv4.
|
||||||
|
if (input_profile == NULL ||
|
||||||
|
(major_revision < 4 && qcms_profile_is_bogus(input_profile))) {
|
||||||
|
fprintf(stderr, "Color profile is bogus!\n");
|
||||||
|
goto Error;
|
||||||
|
}
|
||||||
|
|
||||||
|
output_profile = qcms_profile_sRGB();
|
||||||
|
if (output_profile == NULL) {
|
||||||
|
fprintf(stderr, "Error creating output color profile!\n");
|
||||||
|
goto Error;
|
||||||
|
}
|
||||||
|
|
||||||
|
qcms_profile_precache_output_transform(output_profile);
|
||||||
|
transform = qcms_transform_create(input_profile, input_type,
|
||||||
|
output_profile, output_type,
|
||||||
|
intent);
|
||||||
|
if (transform == NULL) {
|
||||||
|
fprintf(stderr, "Error creating color transform!\n");
|
||||||
|
goto Error;
|
||||||
|
}
|
||||||
|
|
||||||
|
line = rgba->u.RGBA.rgba;
|
||||||
|
for (i = 0; i < rgba->height; ++i, line += rgba->u.RGBA.stride) {
|
||||||
|
qcms_transform_data(transform, line, line, rgba->width);
|
||||||
|
}
|
||||||
|
ok = 1;
|
||||||
|
|
||||||
|
Error:
|
||||||
|
if (input_profile != NULL) qcms_profile_release(input_profile);
|
||||||
|
if (output_profile != NULL) qcms_profile_release(output_profile);
|
||||||
|
if (transform != NULL) qcms_transform_release(transform);
|
||||||
|
return ok;
|
||||||
|
#else
|
||||||
|
(void)profile;
|
||||||
|
(void)rgba;
|
||||||
|
return 1;
|
||||||
|
#endif // WEBP_HAVE_QCMS
|
||||||
|
}
|
||||||
|
|
||||||
|
//------------------------------------------------------------------------------
|
||||||
|
// File decoding
|
||||||
|
|
||||||
|
static int Decode(void) { // Fills kParams.curr_frame
|
||||||
|
const WebPIterator* const curr = &kParams.curr_frame;
|
||||||
|
WebPDecoderConfig* const config = &kParams.config;
|
||||||
|
WebPDecBuffer* const output_buffer = &config->output;
|
||||||
|
int ok = 0;
|
||||||
|
|
||||||
|
ClearPreviousPic();
|
||||||
|
output_buffer->colorspace = MODE_RGBA;
|
||||||
|
ok = (WebPDecode(curr->fragment.bytes, curr->fragment.size,
|
||||||
|
config) == VP8_STATUS_OK);
|
||||||
|
if (!ok) {
|
||||||
|
fprintf(stderr, "Decoding of frame #%d failed!\n", curr->frame_num);
|
||||||
|
} else {
|
||||||
|
kParams.pic = output_buffer;
|
||||||
|
if (kParams.use_color_profile) {
|
||||||
|
ok = ApplyColorProfile(&kParams.iccp.chunk, output_buffer);
|
||||||
|
if (!ok) {
|
||||||
|
fprintf(stderr, "Applying color profile to frame #%d failed!\n",
|
||||||
|
curr->frame_num);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
return ok;
|
||||||
|
}
|
||||||
|
|
||||||
|
static void decode_callback(int what) {
|
||||||
|
if (what == 0 && !kParams.done) {
|
||||||
|
int duration = 0;
|
||||||
|
if (kParams.dmux != NULL) {
|
||||||
|
WebPIterator* const curr = &kParams.curr_frame;
|
||||||
|
if (!WebPDemuxNextFrame(curr)) {
|
||||||
|
WebPDemuxReleaseIterator(curr);
|
||||||
|
if (WebPDemuxGetFrame(kParams.dmux, 1, curr)) {
|
||||||
|
--kParams.loop_count;
|
||||||
|
kParams.done = (kParams.loop_count == 0);
|
||||||
|
if (kParams.done) return;
|
||||||
|
ClearPreviousFrame();
|
||||||
|
} else {
|
||||||
|
kParams.decoding_error = 1;
|
||||||
|
kParams.done = 1;
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
duration = curr->duration;
|
||||||
|
// Behavior copied from Chrome, cf:
|
||||||
|
// https://cs.chromium.org/chromium/src/third_party/WebKit/Source/
|
||||||
|
// platform/graphics/DeferredImageDecoder.cpp?
|
||||||
|
// rcl=b4c33049f096cd283f32be9a58b9a9e768227c26&l=246
|
||||||
|
if (duration <= 10) duration = 100;
|
||||||
|
}
|
||||||
|
if (!Decode()) {
|
||||||
|
kParams.decoding_error = 1;
|
||||||
|
kParams.done = 1;
|
||||||
|
} else {
|
||||||
|
glutPostRedisplay();
|
||||||
|
glutTimerFunc(duration, decode_callback, what);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
//------------------------------------------------------------------------------
|
||||||
|
// Callbacks
|
||||||
|
|
||||||
|
static void HandleKey(unsigned char key, int pos_x, int pos_y) {
|
||||||
|
// Note: rescaling the window or toggling some features during an animation
|
||||||
|
// generates visual artifacts. This is not fixed because refreshing the frame
|
||||||
|
// may require rendering the whole animation from start till current frame.
|
||||||
|
(void)pos_x;
|
||||||
|
(void)pos_y;
|
||||||
|
if (key == 'q' || key == 'Q' || key == 27 /* Esc */) {
|
||||||
|
#ifdef FREEGLUT
|
||||||
|
glutLeaveMainLoop();
|
||||||
|
#else
|
||||||
|
ClearParams();
|
||||||
|
exit(0);
|
||||||
|
#endif
|
||||||
|
} else if (key == 'c') {
|
||||||
|
if (kParams.has_color_profile && !kParams.decoding_error) {
|
||||||
|
kParams.use_color_profile = 1 - kParams.use_color_profile;
|
||||||
|
|
||||||
|
if (kParams.has_animation) {
|
||||||
|
// Restart the completed animation to pickup the color profile change.
|
||||||
|
if (kParams.done && kParams.loop_count == 0) {
|
||||||
|
kParams.loop_count =
|
||||||
|
(int)WebPDemuxGetI(kParams.dmux, WEBP_FF_LOOP_COUNT) + 1;
|
||||||
|
kParams.done = 0;
|
||||||
|
// Start the decode loop immediately.
|
||||||
|
glutTimerFunc(0, decode_callback, 0);
|
||||||
|
}
|
||||||
|
} else {
|
||||||
|
Decode();
|
||||||
|
glutPostRedisplay();
|
||||||
|
}
|
||||||
|
}
|
||||||
|
} else if (key == 'b') {
|
||||||
|
kParams.draw_anim_background_color = 1 - kParams.draw_anim_background_color;
|
||||||
|
if (!kParams.has_animation) ClearPreviousFrame();
|
||||||
|
glutPostRedisplay();
|
||||||
|
} else if (key == 'i') {
|
||||||
|
kParams.print_info = 1 - kParams.print_info;
|
||||||
|
if (!kParams.has_animation) ClearPreviousFrame();
|
||||||
|
glutPostRedisplay();
|
||||||
|
} else if (key == 'd') {
|
||||||
|
kParams.only_deltas = 1 - kParams.only_deltas;
|
||||||
|
glutPostRedisplay();
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
static void HandleReshape(int width, int height) {
|
||||||
|
// Note: reshape doesn't preserve aspect ratio, and might
|
||||||
|
// be handling larger-than-screen pictures incorrectly.
|
||||||
|
glViewport(0, 0, width, height);
|
||||||
|
glMatrixMode(GL_PROJECTION);
|
||||||
|
glLoadIdentity();
|
||||||
|
glMatrixMode(GL_MODELVIEW);
|
||||||
|
glLoadIdentity();
|
||||||
|
kParams.viewport_width = width;
|
||||||
|
kParams.viewport_height = height;
|
||||||
|
if (!kParams.has_animation) ClearPreviousFrame();
|
||||||
|
}
|
||||||
|
|
||||||
|
static void PrintString(const char* const text) {
|
||||||
|
void* const font = GLUT_BITMAP_9_BY_15;
|
||||||
|
int i;
|
||||||
|
for (i = 0; text[i]; ++i) {
|
||||||
|
glutBitmapCharacter(font, text[i]);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
static void PrintStringW(const char* const text) {
|
||||||
|
#if defined(_WIN32) && defined(_UNICODE)
|
||||||
|
void* const font = GLUT_BITMAP_9_BY_15;
|
||||||
|
const W_CHAR* const wtext = (const W_CHAR*)text;
|
||||||
|
int i;
|
||||||
|
for (i = 0; wtext[i]; ++i) {
|
||||||
|
glutBitmapCharacter(font, wtext[i]);
|
||||||
|
}
|
||||||
|
#else
|
||||||
|
PrintString(text);
|
||||||
|
#endif
|
||||||
|
}
|
||||||
|
|
||||||
|
static float GetColorf(uint32_t color, int shift) {
|
||||||
|
return ((color >> shift) & 0xff) / 255.f;
|
||||||
|
}
|
||||||
|
|
||||||
|
static void DrawCheckerBoard(void) {
|
||||||
|
const int square_size = 8; // must be a power of 2
|
||||||
|
int x, y;
|
||||||
|
GLint viewport[4]; // x, y, width, height
|
||||||
|
|
||||||
|
glPushMatrix();
|
||||||
|
|
||||||
|
glGetIntegerv(GL_VIEWPORT, viewport);
|
||||||
|
// shift to integer coordinates with (0,0) being top-left.
|
||||||
|
glOrtho(0, viewport[2], viewport[3], 0, -1, 1);
|
||||||
|
for (y = 0; y < viewport[3]; y += square_size) {
|
||||||
|
for (x = 0; x < viewport[2]; x += square_size) {
|
||||||
|
const GLubyte color = 128 + 64 * (!((x + y) & square_size));
|
||||||
|
glColor3ub(color, color, color);
|
||||||
|
glRecti(x, y, x + square_size, y + square_size);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
glPopMatrix();
|
||||||
|
}
|
||||||
|
|
||||||
|
static void DrawBackground(void) {
|
||||||
|
// Whole window cleared with clear color, checkerboard rendered on top of it.
|
||||||
|
glClear(GL_COLOR_BUFFER_BIT);
|
||||||
|
DrawCheckerBoard();
|
||||||
|
|
||||||
|
// ANIM background color rendered (blend) on top. Default is white for still
|
||||||
|
// images (without ANIM chunk). glClear() can't be used for that (no blend).
|
||||||
|
if (kParams.draw_anim_background_color) {
|
||||||
|
glPushMatrix();
|
||||||
|
glLoadIdentity();
|
||||||
|
glColor4f(GetColorf(kParams.bg_color, 16), // BGRA from spec
|
||||||
|
GetColorf(kParams.bg_color, 8),
|
||||||
|
GetColorf(kParams.bg_color, 0),
|
||||||
|
GetColorf(kParams.bg_color, 24));
|
||||||
|
glRecti(-1, -1, +1, +1);
|
||||||
|
glPopMatrix();
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
// Draw background in a scissored rectangle.
|
||||||
|
static void DrawBackgroundScissored(int window_x, int window_y, int frame_w,
|
||||||
|
int frame_h) {
|
||||||
|
// Only update the requested area, not the whole canvas.
|
||||||
|
window_x = window_x * kParams.viewport_width / kParams.canvas_width;
|
||||||
|
window_y = window_y * kParams.viewport_height / kParams.canvas_height;
|
||||||
|
frame_w = frame_w * kParams.viewport_width / kParams.canvas_width;
|
||||||
|
frame_h = frame_h * kParams.viewport_height / kParams.canvas_height;
|
||||||
|
|
||||||
|
// glScissor() takes window coordinates (0,0 at bottom left).
|
||||||
|
window_y = kParams.viewport_height - window_y - frame_h;
|
||||||
|
|
||||||
|
glEnable(GL_SCISSOR_TEST);
|
||||||
|
glScissor(window_x, window_y, frame_w, frame_h);
|
||||||
|
DrawBackground();
|
||||||
|
glDisable(GL_SCISSOR_TEST);
|
||||||
|
}
|
||||||
|
|
||||||
|
static void HandleDisplay(void) {
|
||||||
|
const WebPDecBuffer* const pic = kParams.pic;
|
||||||
|
const WebPIterator* const curr = &kParams.curr_frame;
|
||||||
|
WebPIterator* const prev = &kParams.prev_frame;
|
||||||
|
GLfloat xoff, yoff;
|
||||||
|
if (pic == NULL) return;
|
||||||
|
glPushMatrix();
|
||||||
|
glPixelZoom((GLfloat)(+1. / kParams.canvas_width * kParams.viewport_width),
|
||||||
|
(GLfloat)(-1. / kParams.canvas_height * kParams.viewport_height));
|
||||||
|
xoff = (GLfloat)(2. * curr->x_offset / kParams.canvas_width);
|
||||||
|
yoff = (GLfloat)(2. * curr->y_offset / kParams.canvas_height);
|
||||||
|
glRasterPos2f(-1.f + xoff, 1.f - yoff);
|
||||||
|
glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
|
||||||
|
glPixelStorei(GL_UNPACK_ROW_LENGTH, pic->u.RGBA.stride / 4);
|
||||||
|
|
||||||
|
if (kParams.only_deltas) {
|
||||||
|
DrawBackground();
|
||||||
|
} else {
|
||||||
|
// The rectangle of the previous frame might be different than the current
|
||||||
|
// frame, so we may need to DrawBackgroundScissored for both.
|
||||||
|
if (prev->dispose_method == WEBP_MUX_DISPOSE_BACKGROUND) {
|
||||||
|
// Clear the previous frame rectangle.
|
||||||
|
DrawBackgroundScissored(prev->x_offset, prev->y_offset, prev->width,
|
||||||
|
prev->height);
|
||||||
|
}
|
||||||
|
if (curr->blend_method == WEBP_MUX_NO_BLEND) {
|
||||||
|
// We simulate no-blending behavior by first clearing the current frame
|
||||||
|
// rectangle and then alpha-blending against it.
|
||||||
|
DrawBackgroundScissored(curr->x_offset, curr->y_offset, curr->width,
|
||||||
|
curr->height);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
*prev = *curr;
|
||||||
|
|
||||||
|
glDrawPixels(pic->width, pic->height,
|
||||||
|
GL_RGBA, GL_UNSIGNED_BYTE,
|
||||||
|
(GLvoid*)pic->u.RGBA.rgba);
|
||||||
|
if (kParams.print_info) {
|
||||||
|
char tmp[32];
|
||||||
|
|
||||||
|
glColor4f(0.90f, 0.0f, 0.90f, 1.0f);
|
||||||
|
glRasterPos2f(-0.95f, 0.90f);
|
||||||
|
PrintStringW(kParams.file_name);
|
||||||
|
|
||||||
|
snprintf(tmp, sizeof(tmp), "Dimension:%d x %d", pic->width, pic->height);
|
||||||
|
glColor4f(0.90f, 0.0f, 0.90f, 1.0f);
|
||||||
|
glRasterPos2f(-0.95f, 0.80f);
|
||||||
|
PrintString(tmp);
|
||||||
|
if (curr->x_offset != 0 || curr->y_offset != 0) {
|
||||||
|
snprintf(tmp, sizeof(tmp), " (offset:%d,%d)",
|
||||||
|
curr->x_offset, curr->y_offset);
|
||||||
|
glRasterPos2f(-0.95f, 0.70f);
|
||||||
|
PrintString(tmp);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
glPopMatrix();
|
||||||
|
#if defined(__APPLE__) || defined(_WIN32)
|
||||||
|
glFlush();
|
||||||
|
#else
|
||||||
|
glutSwapBuffers();
|
||||||
|
#endif
|
||||||
|
}
|
||||||
|
|
||||||
|
static void StartDisplay(void) {
|
||||||
|
int width = kParams.canvas_width;
|
||||||
|
int height = kParams.canvas_height;
|
||||||
|
int screen_width, screen_height;
|
||||||
|
// TODO(webp:365) GLUT_DOUBLE results in flickering / old frames to be
|
||||||
|
// partially displayed with animated webp + alpha.
|
||||||
|
#if defined(__APPLE__) || defined(_WIN32)
|
||||||
|
glutInitDisplayMode(GLUT_RGBA);
|
||||||
|
#else
|
||||||
|
glutInitDisplayMode(GLUT_DOUBLE | GLUT_RGBA);
|
||||||
|
#endif
|
||||||
|
screen_width = glutGet(GLUT_SCREEN_WIDTH);
|
||||||
|
screen_height = glutGet(GLUT_SCREEN_HEIGHT);
|
||||||
|
if (width > screen_width || height > screen_height) {
|
||||||
|
if (width > screen_width) {
|
||||||
|
height = (height * screen_width + width - 1) / width;
|
||||||
|
width = screen_width;
|
||||||
|
}
|
||||||
|
if (height > screen_height) {
|
||||||
|
width = (width * screen_height + height - 1) / height;
|
||||||
|
height = screen_height;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
glutInitWindowSize(width, height);
|
||||||
|
glutCreateWindow("WebP viewer");
|
||||||
|
glutDisplayFunc(HandleDisplay);
|
||||||
|
glutReshapeFunc(HandleReshape);
|
||||||
|
glutIdleFunc(NULL);
|
||||||
|
glutKeyboardFunc(HandleKey);
|
||||||
|
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
|
||||||
|
glEnable(GL_BLEND);
|
||||||
|
glClearColor(0, 0, 0, 0); // window will be cleared to black (no blend)
|
||||||
|
DrawBackground();
|
||||||
|
}
|
||||||
|
|
||||||
|
//------------------------------------------------------------------------------
|
||||||
|
// Main
|
||||||
|
|
||||||
|
static void Help(void) {
|
||||||
|
printf(
|
||||||
|
"Usage: vwebp in_file [options]\n\n"
|
||||||
|
"Decodes the WebP image file and visualize it using OpenGL\n"
|
||||||
|
"Options are:\n"
|
||||||
|
" -version ..... print version number and exit\n"
|
||||||
|
" -noicc ....... don't use the icc profile if present\n"
|
||||||
|
" -nofancy ..... don't use the fancy YUV420 upscaler\n"
|
||||||
|
" -nofilter .... disable in-loop filtering\n"
|
||||||
|
" -dither <int> dithering strength (0..100), default=50\n"
|
||||||
|
" -noalphadither disable alpha plane dithering\n"
|
||||||
|
" -usebgcolor .. display background color\n"
|
||||||
|
" -mt .......... use multi-threading\n"
|
||||||
|
" -info ........ print info\n"
|
||||||
|
" -h ........... this help message\n"
|
||||||
|
"\n"
|
||||||
|
"Keyboard shortcuts:\n"
|
||||||
|
" 'c' ................ toggle use of color profile\n"
|
||||||
|
" 'b' ................ toggle background color display\n"
|
||||||
|
" 'i' ................ overlay file information\n"
|
||||||
|
" 'd' ................ disable blending & disposal (debug)\n"
|
||||||
|
" 'q' / 'Q' / ESC .... quit\n");
|
||||||
|
}
|
||||||
|
|
||||||
|
int main(int argc, char* argv[]) {
|
||||||
|
int c;
|
||||||
|
WebPDecoderConfig* const config = &kParams.config;
|
||||||
|
WebPIterator* const curr = &kParams.curr_frame;
|
||||||
|
|
||||||
|
INIT_WARGV(argc, argv);
|
||||||
|
|
||||||
|
if (!WebPInitDecoderConfig(config)) {
|
||||||
|
fprintf(stderr, "Library version mismatch!\n");
|
||||||
|
FREE_WARGV_AND_RETURN(-1);
|
||||||
|
}
|
||||||
|
config->options.dithering_strength = 50;
|
||||||
|
config->options.alpha_dithering_strength = 100;
|
||||||
|
kParams.use_color_profile = 1;
|
||||||
|
// Background color hidden by default to see transparent areas.
|
||||||
|
kParams.draw_anim_background_color = 0;
|
||||||
|
|
||||||
|
for (c = 1; c < argc; ++c) {
|
||||||
|
int parse_error = 0;
|
||||||
|
if (!strcmp(argv[c], "-h") || !strcmp(argv[c], "-help")) {
|
||||||
|
Help();
|
||||||
|
FREE_WARGV_AND_RETURN(0);
|
||||||
|
} else if (!strcmp(argv[c], "-noicc")) {
|
||||||
|
kParams.use_color_profile = 0;
|
||||||
|
} else if (!strcmp(argv[c], "-nofancy")) {
|
||||||
|
config->options.no_fancy_upsampling = 1;
|
||||||
|
} else if (!strcmp(argv[c], "-nofilter")) {
|
||||||
|
config->options.bypass_filtering = 1;
|
||||||
|
} else if (!strcmp(argv[c], "-noalphadither")) {
|
||||||
|
config->options.alpha_dithering_strength = 0;
|
||||||
|
} else if (!strcmp(argv[c], "-usebgcolor")) {
|
||||||
|
kParams.draw_anim_background_color = 1;
|
||||||
|
} else if (!strcmp(argv[c], "-dither") && c + 1 < argc) {
|
||||||
|
config->options.dithering_strength =
|
||||||
|
ExUtilGetInt(argv[++c], 0, &parse_error);
|
||||||
|
} else if (!strcmp(argv[c], "-info")) {
|
||||||
|
kParams.print_info = 1;
|
||||||
|
} else if (!strcmp(argv[c], "-version")) {
|
||||||
|
const int dec_version = WebPGetDecoderVersion();
|
||||||
|
const int dmux_version = WebPGetDemuxVersion();
|
||||||
|
printf("WebP Decoder version: %d.%d.%d\nWebP Demux version: %d.%d.%d\n",
|
||||||
|
(dec_version >> 16) & 0xff, (dec_version >> 8) & 0xff,
|
||||||
|
dec_version & 0xff, (dmux_version >> 16) & 0xff,
|
||||||
|
(dmux_version >> 8) & 0xff, dmux_version & 0xff);
|
||||||
|
FREE_WARGV_AND_RETURN(0);
|
||||||
|
} else if (!strcmp(argv[c], "-mt")) {
|
||||||
|
config->options.use_threads = 1;
|
||||||
|
} else if (!strcmp(argv[c], "--")) {
|
||||||
|
if (c < argc - 1) kParams.file_name = (const char*)GET_WARGV(argv, ++c);
|
||||||
|
break;
|
||||||
|
} else if (argv[c][0] == '-') {
|
||||||
|
printf("Unknown option '%s'\n", argv[c]);
|
||||||
|
Help();
|
||||||
|
FREE_WARGV_AND_RETURN(-1);
|
||||||
|
} else {
|
||||||
|
kParams.file_name = (const char*)GET_WARGV(argv, c);
|
||||||
|
}
|
||||||
|
|
||||||
|
if (parse_error) {
|
||||||
|
Help();
|
||||||
|
FREE_WARGV_AND_RETURN(-1);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
if (kParams.file_name == NULL) {
|
||||||
|
printf("missing input file!!\n");
|
||||||
|
Help();
|
||||||
|
FREE_WARGV_AND_RETURN(0);
|
||||||
|
}
|
||||||
|
|
||||||
|
if (!ImgIoUtilReadFile(kParams.file_name,
|
||||||
|
&kParams.data.bytes, &kParams.data.size)) {
|
||||||
|
goto Error;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (!WebPGetInfo(kParams.data.bytes, kParams.data.size, NULL, NULL)) {
|
||||||
|
fprintf(stderr, "Input file doesn't appear to be WebP format.\n");
|
||||||
|
goto Error;
|
||||||
|
}
|
||||||
|
|
||||||
|
kParams.dmux = WebPDemux(&kParams.data);
|
||||||
|
if (kParams.dmux == NULL) {
|
||||||
|
fprintf(stderr, "Could not create demuxing object!\n");
|
||||||
|
goto Error;
|
||||||
|
}
|
||||||
|
|
||||||
|
kParams.canvas_width = WebPDemuxGetI(kParams.dmux, WEBP_FF_CANVAS_WIDTH);
|
||||||
|
kParams.canvas_height = WebPDemuxGetI(kParams.dmux, WEBP_FF_CANVAS_HEIGHT);
|
||||||
|
if (kParams.print_info) {
|
||||||
|
printf("Canvas: %d x %d\n", kParams.canvas_width, kParams.canvas_height);
|
||||||
|
}
|
||||||
|
|
||||||
|
ClearPreviousFrame();
|
||||||
|
|
||||||
|
memset(&kParams.iccp, 0, sizeof(kParams.iccp));
|
||||||
|
kParams.has_color_profile =
|
||||||
|
!!(WebPDemuxGetI(kParams.dmux, WEBP_FF_FORMAT_FLAGS) & ICCP_FLAG);
|
||||||
|
if (kParams.has_color_profile) {
|
||||||
|
#ifdef WEBP_HAVE_QCMS
|
||||||
|
if (!WebPDemuxGetChunk(kParams.dmux, "ICCP", 1, &kParams.iccp)) goto Error;
|
||||||
|
printf("VP8X: Found color profile\n");
|
||||||
|
#else
|
||||||
|
fprintf(stderr, "Warning: color profile present, but qcms is unavailable!\n"
|
||||||
|
"Build libqcms from Mozilla or Chromium and define WEBP_HAVE_QCMS "
|
||||||
|
"before building.\n");
|
||||||
|
#endif
|
||||||
|
}
|
||||||
|
|
||||||
|
if (!WebPDemuxGetFrame(kParams.dmux, 1, curr)) goto Error;
|
||||||
|
|
||||||
|
kParams.has_animation = (curr->num_frames > 1);
|
||||||
|
kParams.loop_count = (int)WebPDemuxGetI(kParams.dmux, WEBP_FF_LOOP_COUNT);
|
||||||
|
kParams.bg_color = WebPDemuxGetI(kParams.dmux, WEBP_FF_BACKGROUND_COLOR);
|
||||||
|
printf("VP8X: Found %d images in file (loop count = %d)\n",
|
||||||
|
curr->num_frames, kParams.loop_count);
|
||||||
|
|
||||||
|
// Decode first frame
|
||||||
|
if (!Decode()) goto Error;
|
||||||
|
|
||||||
|
// Position iterator to last frame. Next call to HandleDisplay will wrap over.
|
||||||
|
// We take this into account by bumping up loop_count.
|
||||||
|
WebPDemuxGetFrame(kParams.dmux, 0, curr);
|
||||||
|
if (kParams.loop_count) ++kParams.loop_count;
|
||||||
|
|
||||||
|
#if defined(__unix__) || defined(__CYGWIN__)
|
||||||
|
// Work around GLUT compositor bug.
|
||||||
|
// https://bugs.launchpad.net/ubuntu/+source/freeglut/+bug/369891
|
||||||
|
setenv("XLIB_SKIP_ARGB_VISUALS", "1", 1);
|
||||||
|
#endif
|
||||||
|
|
||||||
|
// Start display (and timer)
|
||||||
|
glutInit(&argc, argv);
|
||||||
|
#ifdef FREEGLUT
|
||||||
|
glutSetOption(GLUT_ACTION_ON_WINDOW_CLOSE, GLUT_ACTION_CONTINUE_EXECUTION);
|
||||||
|
#endif
|
||||||
|
StartDisplay();
|
||||||
|
|
||||||
|
if (kParams.has_animation) glutTimerFunc(0, decode_callback, 0);
|
||||||
|
glutMainLoop();
|
||||||
|
|
||||||
|
// Should only be reached when using FREEGLUT:
|
||||||
|
ClearParams();
|
||||||
|
FREE_WARGV_AND_RETURN(0);
|
||||||
|
|
||||||
|
Error:
|
||||||
|
ClearParams();
|
||||||
|
FREE_WARGV_AND_RETURN(-1);
|
||||||
|
}
|
||||||
|
|
||||||
|
#else // !WEBP_HAVE_GL
|
||||||
|
|
||||||
|
int main(int argc, const char* argv[]) {
|
||||||
|
fprintf(stderr, "OpenGL support not enabled in %s.\n", argv[0]);
|
||||||
|
(void)argc;
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
#endif
|
||||||
|
|
||||||
|
//------------------------------------------------------------------------------
|
1186
examples/webpinfo.c
Normal file
1186
examples/webpinfo.c
Normal file
File diff suppressed because it is too large
Load Diff
1234
examples/webpmux.c
Normal file
1234
examples/webpmux.c
Normal file
File diff suppressed because it is too large
Load Diff
44
extras/Makefile.am
Normal file
44
extras/Makefile.am
Normal file
@ -0,0 +1,44 @@
|
|||||||
|
AM_CPPFLAGS += -I$(top_builddir) -I$(top_srcdir)
|
||||||
|
AM_CPPFLAGS += -I$(top_builddir)/src -I$(top_srcdir)/src
|
||||||
|
noinst_LTLIBRARIES = libwebpextras.la
|
||||||
|
|
||||||
|
noinst_HEADERS =
|
||||||
|
noinst_HEADERS += ../src/webp/types.h
|
||||||
|
|
||||||
|
libwebpextras_la_SOURCES =
|
||||||
|
libwebpextras_la_SOURCES += extras.c extras.h quality_estimate.c
|
||||||
|
|
||||||
|
libwebpextras_la_CPPFLAGS = $(AM_CPPFLAGS)
|
||||||
|
libwebpextras_la_LDFLAGS = -lm
|
||||||
|
libwebpextras_la_LIBADD = ../src/libwebp.la
|
||||||
|
|
||||||
|
noinst_PROGRAMS =
|
||||||
|
noinst_PROGRAMS += webp_quality
|
||||||
|
if BUILD_DEMUX
|
||||||
|
noinst_PROGRAMS += get_disto
|
||||||
|
endif
|
||||||
|
if BUILD_VWEBP_SDL
|
||||||
|
noinst_PROGRAMS += vwebp_sdl
|
||||||
|
endif
|
||||||
|
|
||||||
|
get_disto_SOURCES = get_disto.c
|
||||||
|
get_disto_CPPFLAGS = $(AM_CPPFLAGS)
|
||||||
|
get_disto_LDADD =
|
||||||
|
get_disto_LDADD += ../imageio/libimageio_util.la
|
||||||
|
get_disto_LDADD += ../imageio/libimagedec.la
|
||||||
|
get_disto_LDADD += ../src/libwebp.la
|
||||||
|
get_disto_LDADD += $(PNG_LIBS) $(JPEG_LIBS) $(TIFF_LIBS)
|
||||||
|
|
||||||
|
webp_quality_SOURCES = webp_quality.c
|
||||||
|
webp_quality_CPPFLAGS = $(AM_CPPFLAGS)
|
||||||
|
webp_quality_LDADD =
|
||||||
|
webp_quality_LDADD += ../imageio/libimageio_util.la
|
||||||
|
webp_quality_LDADD += libwebpextras.la
|
||||||
|
webp_quality_LDADD += ../src/libwebp.la
|
||||||
|
|
||||||
|
vwebp_sdl_SOURCES = vwebp_sdl.c webp_to_sdl.c webp_to_sdl.h
|
||||||
|
vwebp_sdl_CPPFLAGS = $(AM_CPPFLAGS) $(SDL_INCLUDES)
|
||||||
|
vwebp_sdl_LDADD =
|
||||||
|
vwebp_sdl_LDADD += ../imageio/libimageio_util.la
|
||||||
|
vwebp_sdl_LDADD += ../src/libwebp.la
|
||||||
|
vwebp_sdl_LDADD += $(SDL_LIBS)
|
162
extras/extras.c
Normal file
162
extras/extras.c
Normal file
@ -0,0 +1,162 @@
|
|||||||
|
// Copyright 2015 Google Inc. All Rights Reserved.
|
||||||
|
//
|
||||||
|
// Use of this source code is governed by a BSD-style license
|
||||||
|
// that can be found in the COPYING file in the root of the source
|
||||||
|
// tree. An additional intellectual property rights grant can be found
|
||||||
|
// in the file PATENTS. All contributing project authors may
|
||||||
|
// be found in the AUTHORS file in the root of the source tree.
|
||||||
|
// -----------------------------------------------------------------------------
|
||||||
|
//
|
||||||
|
// Additional WebP utilities.
|
||||||
|
//
|
||||||
|
|
||||||
|
#include "extras/extras.h"
|
||||||
|
#include "webp/format_constants.h"
|
||||||
|
#include "src/dsp/dsp.h"
|
||||||
|
|
||||||
|
#include <assert.h>
|
||||||
|
#include <string.h>
|
||||||
|
|
||||||
|
#define XTRA_MAJ_VERSION 1
|
||||||
|
#define XTRA_MIN_VERSION 3
|
||||||
|
#define XTRA_REV_VERSION 1
|
||||||
|
|
||||||
|
//------------------------------------------------------------------------------
|
||||||
|
|
||||||
|
int WebPGetExtrasVersion(void) {
|
||||||
|
return (XTRA_MAJ_VERSION << 16) | (XTRA_MIN_VERSION << 8) | XTRA_REV_VERSION;
|
||||||
|
}
|
||||||
|
|
||||||
|
//------------------------------------------------------------------------------
|
||||||
|
|
||||||
|
int WebPImportGray(const uint8_t* gray_data, WebPPicture* pic) {
|
||||||
|
int y, width, uv_width;
|
||||||
|
if (pic == NULL || gray_data == NULL) return 0;
|
||||||
|
pic->colorspace = WEBP_YUV420;
|
||||||
|
if (!WebPPictureAlloc(pic)) return 0;
|
||||||
|
width = pic->width;
|
||||||
|
uv_width = (width + 1) >> 1;
|
||||||
|
for (y = 0; y < pic->height; ++y) {
|
||||||
|
memcpy(pic->y + y * pic->y_stride, gray_data, width);
|
||||||
|
gray_data += width; // <- we could use some 'data_stride' here if needed
|
||||||
|
if ((y & 1) == 0) {
|
||||||
|
memset(pic->u + (y >> 1) * pic->uv_stride, 128, uv_width);
|
||||||
|
memset(pic->v + (y >> 1) * pic->uv_stride, 128, uv_width);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
return 1;
|
||||||
|
}
|
||||||
|
|
||||||
|
int WebPImportRGB565(const uint8_t* rgb565, WebPPicture* pic) {
|
||||||
|
int x, y;
|
||||||
|
uint32_t* dst;
|
||||||
|
if (pic == NULL || rgb565 == NULL) return 0;
|
||||||
|
pic->colorspace = WEBP_YUV420;
|
||||||
|
pic->use_argb = 1;
|
||||||
|
if (!WebPPictureAlloc(pic)) return 0;
|
||||||
|
dst = pic->argb;
|
||||||
|
for (y = 0; y < pic->height; ++y) {
|
||||||
|
const int width = pic->width;
|
||||||
|
for (x = 0; x < width; ++x) {
|
||||||
|
#if defined(WEBP_SWAP_16BIT_CSP) && (WEBP_SWAP_16BIT_CSP == 1)
|
||||||
|
const uint32_t rg = rgb565[2 * x + 1];
|
||||||
|
const uint32_t gb = rgb565[2 * x + 0];
|
||||||
|
#else
|
||||||
|
const uint32_t rg = rgb565[2 * x + 0];
|
||||||
|
const uint32_t gb = rgb565[2 * x + 1];
|
||||||
|
#endif
|
||||||
|
uint32_t r = rg & 0xf8;
|
||||||
|
uint32_t g = ((rg << 5) | (gb >> 3)) & 0xfc;
|
||||||
|
uint32_t b = (gb << 5);
|
||||||
|
// dithering
|
||||||
|
r = r | (r >> 5);
|
||||||
|
g = g | (g >> 6);
|
||||||
|
b = b | (b >> 5);
|
||||||
|
dst[x] = (0xffu << 24) | (r << 16) | (g << 8) | b;
|
||||||
|
}
|
||||||
|
rgb565 += 2 * width;
|
||||||
|
dst += pic->argb_stride;
|
||||||
|
}
|
||||||
|
return 1;
|
||||||
|
}
|
||||||
|
|
||||||
|
int WebPImportRGB4444(const uint8_t* rgb4444, WebPPicture* pic) {
|
||||||
|
int x, y;
|
||||||
|
uint32_t* dst;
|
||||||
|
if (pic == NULL || rgb4444 == NULL) return 0;
|
||||||
|
pic->colorspace = WEBP_YUV420;
|
||||||
|
pic->use_argb = 1;
|
||||||
|
if (!WebPPictureAlloc(pic)) return 0;
|
||||||
|
dst = pic->argb;
|
||||||
|
for (y = 0; y < pic->height; ++y) {
|
||||||
|
const int width = pic->width;
|
||||||
|
for (x = 0; x < width; ++x) {
|
||||||
|
#if defined(WEBP_SWAP_16BIT_CSP) && (WEBP_SWAP_16BIT_CSP == 1)
|
||||||
|
const uint32_t rg = rgb4444[2 * x + 1];
|
||||||
|
const uint32_t ba = rgb4444[2 * x + 0];
|
||||||
|
#else
|
||||||
|
const uint32_t rg = rgb4444[2 * x + 0];
|
||||||
|
const uint32_t ba = rgb4444[2 * x + 1];
|
||||||
|
#endif
|
||||||
|
uint32_t r = rg & 0xf0;
|
||||||
|
uint32_t g = (rg << 4);
|
||||||
|
uint32_t b = (ba & 0xf0);
|
||||||
|
uint32_t a = (ba << 4);
|
||||||
|
// dithering
|
||||||
|
r = r | (r >> 4);
|
||||||
|
g = g | (g >> 4);
|
||||||
|
b = b | (b >> 4);
|
||||||
|
a = a | (a >> 4);
|
||||||
|
dst[x] = (a << 24) | (r << 16) | (g << 8) | b;
|
||||||
|
}
|
||||||
|
rgb4444 += 2 * width;
|
||||||
|
dst += pic->argb_stride;
|
||||||
|
}
|
||||||
|
return 1;
|
||||||
|
}
|
||||||
|
|
||||||
|
int WebPImportColorMappedARGB(const uint8_t* indexed, int indexed_stride,
|
||||||
|
const uint32_t palette[], int palette_size,
|
||||||
|
WebPPicture* pic) {
|
||||||
|
int x, y;
|
||||||
|
uint32_t* dst;
|
||||||
|
// 256 as the input buffer is uint8_t.
|
||||||
|
assert(MAX_PALETTE_SIZE <= 256);
|
||||||
|
if (pic == NULL || indexed == NULL || indexed_stride < pic->width ||
|
||||||
|
palette == NULL || palette_size > MAX_PALETTE_SIZE || palette_size <= 0) {
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
pic->use_argb = 1;
|
||||||
|
if (!WebPPictureAlloc(pic)) return 0;
|
||||||
|
dst = pic->argb;
|
||||||
|
for (y = 0; y < pic->height; ++y) {
|
||||||
|
for (x = 0; x < pic->width; ++x) {
|
||||||
|
// Make sure we are within the palette.
|
||||||
|
if (indexed[x] >= palette_size) {
|
||||||
|
WebPPictureFree(pic);
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
dst[x] = palette[indexed[x]];
|
||||||
|
}
|
||||||
|
indexed += indexed_stride;
|
||||||
|
dst += pic->argb_stride;
|
||||||
|
}
|
||||||
|
return 1;
|
||||||
|
}
|
||||||
|
|
||||||
|
//------------------------------------------------------------------------------
|
||||||
|
|
||||||
|
int WebPUnmultiplyARGB(WebPPicture* pic) {
|
||||||
|
int y;
|
||||||
|
uint32_t* dst;
|
||||||
|
if (pic == NULL || pic->use_argb != 1 || pic->argb == NULL) return 0;
|
||||||
|
WebPInitAlphaProcessing();
|
||||||
|
dst = pic->argb;
|
||||||
|
for (y = 0; y < pic->height; ++y) {
|
||||||
|
WebPMultARGBRow(dst, pic->width, /*inverse=*/1);
|
||||||
|
dst += pic->argb_stride;
|
||||||
|
}
|
||||||
|
return 1;
|
||||||
|
}
|
||||||
|
|
||||||
|
//------------------------------------------------------------------------------
|
77
extras/extras.h
Normal file
77
extras/extras.h
Normal file
@ -0,0 +1,77 @@
|
|||||||
|
// Copyright 2015 Google Inc. All Rights Reserved.
|
||||||
|
//
|
||||||
|
// Use of this source code is governed by a BSD-style license
|
||||||
|
// that can be found in the COPYING file in the root of the source
|
||||||
|
// tree. An additional intellectual property rights grant can be found
|
||||||
|
// in the file PATENTS. All contributing project authors may
|
||||||
|
// be found in the AUTHORS file in the root of the source tree.
|
||||||
|
// -----------------------------------------------------------------------------
|
||||||
|
//
|
||||||
|
|
||||||
|
#ifndef WEBP_EXTRAS_EXTRAS_H_
|
||||||
|
#define WEBP_EXTRAS_EXTRAS_H_
|
||||||
|
|
||||||
|
#include "webp/types.h"
|
||||||
|
|
||||||
|
#ifdef __cplusplus
|
||||||
|
extern "C" {
|
||||||
|
#endif
|
||||||
|
|
||||||
|
#include "webp/encode.h"
|
||||||
|
|
||||||
|
#define WEBP_EXTRAS_ABI_VERSION 0x0002 // MAJOR(8b) + MINOR(8b)
|
||||||
|
|
||||||
|
//------------------------------------------------------------------------------
|
||||||
|
|
||||||
|
// Returns the version number of the extras library, packed in hexadecimal using
|
||||||
|
// 8bits for each of major/minor/revision. E.g: v2.5.7 is 0x020507.
|
||||||
|
WEBP_EXTERN int WebPGetExtrasVersion(void);
|
||||||
|
|
||||||
|
//------------------------------------------------------------------------------
|
||||||
|
// Ad-hoc colorspace importers.
|
||||||
|
|
||||||
|
// Import luma sample (gray scale image) into 'picture'. The 'picture'
|
||||||
|
// width and height must be set prior to calling this function.
|
||||||
|
WEBP_EXTERN int WebPImportGray(const uint8_t* gray, WebPPicture* picture);
|
||||||
|
|
||||||
|
// Import rgb sample in RGB565 packed format into 'picture'. The 'picture'
|
||||||
|
// width and height must be set prior to calling this function.
|
||||||
|
WEBP_EXTERN int WebPImportRGB565(const uint8_t* rgb565, WebPPicture* pic);
|
||||||
|
|
||||||
|
// Import rgb sample in RGB4444 packed format into 'picture'. The 'picture'
|
||||||
|
// width and height must be set prior to calling this function.
|
||||||
|
WEBP_EXTERN int WebPImportRGB4444(const uint8_t* rgb4444, WebPPicture* pic);
|
||||||
|
|
||||||
|
// Import a color mapped image. The number of colors is less or equal to
|
||||||
|
// MAX_PALETTE_SIZE. 'pic' must have been initialized. Its content, if any,
|
||||||
|
// will be discarded. Returns 'false' in case of error, or if indexed[] contains
|
||||||
|
// invalid indices.
|
||||||
|
WEBP_EXTERN int
|
||||||
|
WebPImportColorMappedARGB(const uint8_t* indexed, int indexed_stride,
|
||||||
|
const uint32_t palette[], int palette_size,
|
||||||
|
WebPPicture* pic);
|
||||||
|
|
||||||
|
// Convert the ARGB content of 'pic' from associated to unassociated.
|
||||||
|
// 'pic' can be for instance the result of calling of some WebPPictureImportXXX
|
||||||
|
// functions, with pic->use_argb set to 'true'. It is assumed (and not checked)
|
||||||
|
// that the pre-multiplied r/g/b values as less or equal than the alpha value.
|
||||||
|
// Return false in case of error (invalid parameter, ...).
|
||||||
|
WEBP_EXTERN int WebPUnmultiplyARGB(WebPPicture* pic);
|
||||||
|
|
||||||
|
//------------------------------------------------------------------------------
|
||||||
|
|
||||||
|
// Parse a bitstream, search for VP8 (lossy) header and report a
|
||||||
|
// rough estimation of the quality factor used for compressing the bitstream.
|
||||||
|
// If the bitstream is in lossless format, the special value '101' is returned.
|
||||||
|
// Otherwise (lossy bitstream), the returned value is in the range [0..100].
|
||||||
|
// Any error (invalid bitstream, animated WebP, incomplete header, etc.)
|
||||||
|
// will return a value of -1.
|
||||||
|
WEBP_EXTERN int VP8EstimateQuality(const uint8_t* const data, size_t size);
|
||||||
|
|
||||||
|
//------------------------------------------------------------------------------
|
||||||
|
|
||||||
|
#ifdef __cplusplus
|
||||||
|
} // extern "C"
|
||||||
|
#endif
|
||||||
|
|
||||||
|
#endif // WEBP_EXTRAS_EXTRAS_H_
|
356
extras/get_disto.c
Normal file
356
extras/get_disto.c
Normal file
@ -0,0 +1,356 @@
|
|||||||
|
// Copyright 2016 Google Inc. All Rights Reserved.
|
||||||
|
//
|
||||||
|
// Use of this source code is governed by a BSD-style license
|
||||||
|
// that can be found in the COPYING file in the root of the source
|
||||||
|
// tree. An additional intellectual property rights grant can be found
|
||||||
|
// in the file PATENTS. All contributing project authors may
|
||||||
|
// be found in the AUTHORS file in the root of the source tree.
|
||||||
|
// -----------------------------------------------------------------------------
|
||||||
|
//
|
||||||
|
// Simple tool to load two webp/png/jpg/tiff files and compute PSNR/SSIM.
|
||||||
|
// This is mostly a wrapper around WebPPictureDistortion().
|
||||||
|
//
|
||||||
|
/*
|
||||||
|
gcc -o get_disto get_disto.c -O3 -I../ -L../examples -L../imageio \
|
||||||
|
-lexample_util -limageio_util -limagedec -lwebp -L/opt/local/lib \
|
||||||
|
-lpng -lz -ljpeg -ltiff -lm -lpthread
|
||||||
|
*/
|
||||||
|
//
|
||||||
|
// Author: Skal (pascal.massimino@gmail.com)
|
||||||
|
|
||||||
|
#include <assert.h>
|
||||||
|
#include <stdio.h>
|
||||||
|
#include <stdlib.h>
|
||||||
|
#include <string.h>
|
||||||
|
|
||||||
|
#include "webp/encode.h"
|
||||||
|
#include "imageio/image_dec.h"
|
||||||
|
#include "imageio/imageio_util.h"
|
||||||
|
#include "../examples/unicode.h"
|
||||||
|
|
||||||
|
static size_t ReadPicture(const char* const filename, WebPPicture* const pic,
|
||||||
|
int keep_alpha) {
|
||||||
|
const uint8_t* data = NULL;
|
||||||
|
size_t data_size = 0;
|
||||||
|
WebPImageReader reader = NULL;
|
||||||
|
int ok = ImgIoUtilReadFile(filename, &data, &data_size);
|
||||||
|
if (!ok) goto End;
|
||||||
|
|
||||||
|
pic->use_argb = 1; // force ARGB
|
||||||
|
|
||||||
|
#ifdef HAVE_WINCODEC_H
|
||||||
|
// Try to decode the file using WIC falling back to the other readers for
|
||||||
|
// e.g., WebP.
|
||||||
|
ok = ReadPictureWithWIC(filename, pic, keep_alpha, NULL);
|
||||||
|
if (ok) goto End;
|
||||||
|
#endif
|
||||||
|
reader = WebPGuessImageReader(data, data_size);
|
||||||
|
ok = reader(data, data_size, pic, keep_alpha, NULL);
|
||||||
|
|
||||||
|
End:
|
||||||
|
if (!ok) {
|
||||||
|
WFPRINTF(stderr, "Error! Could not process file %s\n",
|
||||||
|
(const W_CHAR*)filename);
|
||||||
|
}
|
||||||
|
free((void*)data);
|
||||||
|
return ok ? data_size : 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
static void RescalePlane(uint8_t* plane, int width, int height,
|
||||||
|
int x_stride, int y_stride, int max) {
|
||||||
|
const uint32_t factor = (max > 0) ? (255u << 16) / max : 0;
|
||||||
|
int x, y;
|
||||||
|
for (y = 0; y < height; ++y) {
|
||||||
|
uint8_t* const ptr = plane + y * y_stride;
|
||||||
|
for (x = 0; x < width * x_stride; x += x_stride) {
|
||||||
|
const uint32_t diff = (ptr[x] * factor + (1 << 15)) >> 16;
|
||||||
|
ptr[x] = diff;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
// Return the max absolute difference.
|
||||||
|
static int DiffScaleChannel(uint8_t* src1, int stride1,
|
||||||
|
const uint8_t* src2, int stride2,
|
||||||
|
int x_stride, int w, int h, int do_scaling) {
|
||||||
|
int x, y;
|
||||||
|
int max = 0;
|
||||||
|
for (y = 0; y < h; ++y) {
|
||||||
|
uint8_t* const ptr1 = src1 + y * stride1;
|
||||||
|
const uint8_t* const ptr2 = src2 + y * stride2;
|
||||||
|
for (x = 0; x < w * x_stride; x += x_stride) {
|
||||||
|
const int diff = abs(ptr1[x] - ptr2[x]);
|
||||||
|
if (diff > max) max = diff;
|
||||||
|
ptr1[x] = diff;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
if (do_scaling) RescalePlane(src1, w, h, x_stride, stride1, max);
|
||||||
|
return max;
|
||||||
|
}
|
||||||
|
|
||||||
|
//------------------------------------------------------------------------------
|
||||||
|
// SSIM calculation. We re-implement these functions here, out of dsp/, to avoid
|
||||||
|
// breaking the library's hidden visibility. This code duplication avoids the
|
||||||
|
// bigger annoyance of having to open up internal details of libdsp...
|
||||||
|
|
||||||
|
#define SSIM_KERNEL 3 // total size of the kernel: 2 * SSIM_KERNEL + 1
|
||||||
|
|
||||||
|
// struct for accumulating statistical moments
|
||||||
|
typedef struct {
|
||||||
|
uint32_t w; // sum(w_i) : sum of weights
|
||||||
|
uint32_t xm, ym; // sum(w_i * x_i), sum(w_i * y_i)
|
||||||
|
uint32_t xxm, xym, yym; // sum(w_i * x_i * x_i), etc.
|
||||||
|
} DistoStats;
|
||||||
|
|
||||||
|
// hat-shaped filter. Sum of coefficients is equal to 16.
|
||||||
|
static const uint32_t kWeight[2 * SSIM_KERNEL + 1] = { 1, 2, 3, 4, 3, 2, 1 };
|
||||||
|
|
||||||
|
static WEBP_INLINE double SSIMCalculation(const DistoStats* const stats) {
|
||||||
|
const uint32_t N = stats->w;
|
||||||
|
const uint32_t w2 = N * N;
|
||||||
|
const uint32_t C1 = 20 * w2;
|
||||||
|
const uint32_t C2 = 60 * w2;
|
||||||
|
const uint32_t C3 = 8 * 8 * w2; // 'dark' limit ~= 6
|
||||||
|
const uint64_t xmxm = (uint64_t)stats->xm * stats->xm;
|
||||||
|
const uint64_t ymym = (uint64_t)stats->ym * stats->ym;
|
||||||
|
if (xmxm + ymym >= C3) {
|
||||||
|
const int64_t xmym = (int64_t)stats->xm * stats->ym;
|
||||||
|
const int64_t sxy = (int64_t)stats->xym * N - xmym; // can be negative
|
||||||
|
const uint64_t sxx = (uint64_t)stats->xxm * N - xmxm;
|
||||||
|
const uint64_t syy = (uint64_t)stats->yym * N - ymym;
|
||||||
|
// we descale by 8 to prevent overflow during the fnum/fden multiply.
|
||||||
|
const uint64_t num_S = (2 * (uint64_t)(sxy < 0 ? 0 : sxy) + C2) >> 8;
|
||||||
|
const uint64_t den_S = (sxx + syy + C2) >> 8;
|
||||||
|
const uint64_t fnum = (2 * xmym + C1) * num_S;
|
||||||
|
const uint64_t fden = (xmxm + ymym + C1) * den_S;
|
||||||
|
const double r = (double)fnum / fden;
|
||||||
|
assert(r >= 0. && r <= 1.0);
|
||||||
|
return r;
|
||||||
|
}
|
||||||
|
return 1.; // area is too dark to contribute meaningfully
|
||||||
|
}
|
||||||
|
|
||||||
|
static double SSIMGetClipped(const uint8_t* src1, int stride1,
|
||||||
|
const uint8_t* src2, int stride2,
|
||||||
|
int xo, int yo, int W, int H) {
|
||||||
|
DistoStats stats = { 0, 0, 0, 0, 0, 0 };
|
||||||
|
const int ymin = (yo - SSIM_KERNEL < 0) ? 0 : yo - SSIM_KERNEL;
|
||||||
|
const int ymax = (yo + SSIM_KERNEL > H - 1) ? H - 1 : yo + SSIM_KERNEL;
|
||||||
|
const int xmin = (xo - SSIM_KERNEL < 0) ? 0 : xo - SSIM_KERNEL;
|
||||||
|
const int xmax = (xo + SSIM_KERNEL > W - 1) ? W - 1 : xo + SSIM_KERNEL;
|
||||||
|
int x, y;
|
||||||
|
src1 += ymin * stride1;
|
||||||
|
src2 += ymin * stride2;
|
||||||
|
for (y = ymin; y <= ymax; ++y, src1 += stride1, src2 += stride2) {
|
||||||
|
for (x = xmin; x <= xmax; ++x) {
|
||||||
|
const uint32_t w = kWeight[SSIM_KERNEL + x - xo]
|
||||||
|
* kWeight[SSIM_KERNEL + y - yo];
|
||||||
|
const uint32_t s1 = src1[x];
|
||||||
|
const uint32_t s2 = src2[x];
|
||||||
|
stats.w += w;
|
||||||
|
stats.xm += w * s1;
|
||||||
|
stats.ym += w * s2;
|
||||||
|
stats.xxm += w * s1 * s1;
|
||||||
|
stats.xym += w * s1 * s2;
|
||||||
|
stats.yym += w * s2 * s2;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
return SSIMCalculation(&stats);
|
||||||
|
}
|
||||||
|
|
||||||
|
// Compute SSIM-score map. Return -1 in case of error, max diff otherwise.
|
||||||
|
static int SSIMScaleChannel(uint8_t* src1, int stride1,
|
||||||
|
const uint8_t* src2, int stride2,
|
||||||
|
int x_stride, int w, int h, int do_scaling) {
|
||||||
|
int x, y;
|
||||||
|
int max = 0;
|
||||||
|
uint8_t* const plane1 = (uint8_t*)malloc(2 * w * h * sizeof(*plane1));
|
||||||
|
uint8_t* const plane2 = plane1 + w * h;
|
||||||
|
if (plane1 == NULL) return -1;
|
||||||
|
|
||||||
|
// extract plane
|
||||||
|
for (y = 0; y < h; ++y) {
|
||||||
|
for (x = 0; x < w; ++x) {
|
||||||
|
plane1[x + y * w] = src1[x * x_stride + y * stride1];
|
||||||
|
plane2[x + y * w] = src2[x * x_stride + y * stride2];
|
||||||
|
}
|
||||||
|
}
|
||||||
|
for (y = 0; y < h; ++y) {
|
||||||
|
for (x = 0; x < w; ++x) {
|
||||||
|
const double ssim = SSIMGetClipped(plane1, w, plane2, w, x, y, w, h);
|
||||||
|
int diff = (int)(255 * (1. - ssim));
|
||||||
|
if (diff < 0) {
|
||||||
|
diff = 0;
|
||||||
|
} else if (diff > max) {
|
||||||
|
max = diff;
|
||||||
|
}
|
||||||
|
src1[x * x_stride + y * stride1] = (diff > 255) ? 255u : (uint8_t)diff;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
free(plane1);
|
||||||
|
|
||||||
|
if (do_scaling) RescalePlane(src1, w, h, x_stride, stride1, max);
|
||||||
|
return max;
|
||||||
|
}
|
||||||
|
|
||||||
|
// Convert an argb picture to luminance.
|
||||||
|
static void ConvertToGray(WebPPicture* const pic) {
|
||||||
|
int x, y;
|
||||||
|
assert(pic != NULL);
|
||||||
|
assert(pic->use_argb);
|
||||||
|
for (y = 0; y < pic->height; ++y) {
|
||||||
|
uint32_t* const row = &pic->argb[y * pic->argb_stride];
|
||||||
|
for (x = 0; x < pic->width; ++x) {
|
||||||
|
const uint32_t argb = row[x];
|
||||||
|
const uint32_t r = (argb >> 16) & 0xff;
|
||||||
|
const uint32_t g = (argb >> 8) & 0xff;
|
||||||
|
const uint32_t b = (argb >> 0) & 0xff;
|
||||||
|
// We use BT.709 for converting to luminance.
|
||||||
|
const uint32_t Y = (uint32_t)(0.2126 * r + 0.7152 * g + 0.0722 * b + .5);
|
||||||
|
row[x] = (argb & 0xff000000u) | (Y * 0x010101u);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
static void Help(void) {
|
||||||
|
fprintf(stderr,
|
||||||
|
"Usage: get_disto [-ssim][-psnr][-alpha] compressed.webp orig.webp\n"
|
||||||
|
" -ssim ..... print SSIM distortion\n"
|
||||||
|
" -psnr ..... print PSNR distortion (default)\n"
|
||||||
|
" -alpha .... preserve alpha plane\n"
|
||||||
|
" -h ........ this message\n"
|
||||||
|
" -o <file> . save the diff map as a WebP lossless file\n"
|
||||||
|
" -scale .... scale the difference map to fit [0..255] range\n"
|
||||||
|
" -gray ..... use grayscale for difference map (-scale)\n"
|
||||||
|
"\nSupported input formats:\n %s\n",
|
||||||
|
WebPGetEnabledInputFileFormats());
|
||||||
|
}
|
||||||
|
|
||||||
|
int main(int argc, const char* argv[]) {
|
||||||
|
WebPPicture pic1, pic2;
|
||||||
|
size_t size1 = 0, size2 = 0;
|
||||||
|
int ret = 1;
|
||||||
|
float disto[5];
|
||||||
|
int type = 0;
|
||||||
|
int c;
|
||||||
|
int help = 0;
|
||||||
|
int keep_alpha = 0;
|
||||||
|
int scale = 0;
|
||||||
|
int use_gray = 0;
|
||||||
|
const char* name1 = NULL;
|
||||||
|
const char* name2 = NULL;
|
||||||
|
const char* output = NULL;
|
||||||
|
|
||||||
|
INIT_WARGV(argc, argv);
|
||||||
|
|
||||||
|
if (!WebPPictureInit(&pic1) || !WebPPictureInit(&pic2)) {
|
||||||
|
fprintf(stderr, "Can't init pictures\n");
|
||||||
|
FREE_WARGV_AND_RETURN(1);
|
||||||
|
}
|
||||||
|
|
||||||
|
for (c = 1; c < argc; ++c) {
|
||||||
|
if (!strcmp(argv[c], "-ssim")) {
|
||||||
|
type = 1;
|
||||||
|
} else if (!strcmp(argv[c], "-psnr")) {
|
||||||
|
type = 0;
|
||||||
|
} else if (!strcmp(argv[c], "-alpha")) {
|
||||||
|
keep_alpha = 1;
|
||||||
|
} else if (!strcmp(argv[c], "-scale")) {
|
||||||
|
scale = 1;
|
||||||
|
} else if (!strcmp(argv[c], "-gray")) {
|
||||||
|
use_gray = 1;
|
||||||
|
} else if (!strcmp(argv[c], "-h")) {
|
||||||
|
help = 1;
|
||||||
|
ret = 0;
|
||||||
|
} else if (!strcmp(argv[c], "-o")) {
|
||||||
|
if (++c == argc) {
|
||||||
|
fprintf(stderr, "missing file name after %s option.\n", argv[c - 1]);
|
||||||
|
goto End;
|
||||||
|
}
|
||||||
|
output = (const char*)GET_WARGV(argv, c);
|
||||||
|
} else if (name1 == NULL) {
|
||||||
|
name1 = (const char*)GET_WARGV(argv, c);
|
||||||
|
} else {
|
||||||
|
name2 = (const char*)GET_WARGV(argv, c);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
if (help || name1 == NULL || name2 == NULL) {
|
||||||
|
if (!help) {
|
||||||
|
fprintf(stderr, "Error: missing arguments.\n");
|
||||||
|
}
|
||||||
|
Help();
|
||||||
|
goto End;
|
||||||
|
}
|
||||||
|
size1 = ReadPicture(name1, &pic1, 1);
|
||||||
|
size2 = ReadPicture(name2, &pic2, 1);
|
||||||
|
if (size1 == 0 || size2 == 0) goto End;
|
||||||
|
|
||||||
|
if (!keep_alpha) {
|
||||||
|
WebPBlendAlpha(&pic1, 0x00000000);
|
||||||
|
WebPBlendAlpha(&pic2, 0x00000000);
|
||||||
|
}
|
||||||
|
|
||||||
|
if (!WebPPictureDistortion(&pic1, &pic2, type, disto)) {
|
||||||
|
fprintf(stderr, "Error while computing the distortion.\n");
|
||||||
|
goto End;
|
||||||
|
}
|
||||||
|
printf("%u %.2f %.2f %.2f %.2f %.2f [ %.2f bpp ]\n",
|
||||||
|
(unsigned int)size1,
|
||||||
|
disto[4], disto[0], disto[1], disto[2], disto[3],
|
||||||
|
8.f * size1 / pic1.width / pic1.height);
|
||||||
|
|
||||||
|
if (output != NULL) {
|
||||||
|
uint8_t* data = NULL;
|
||||||
|
size_t data_size = 0;
|
||||||
|
if (pic1.use_argb != pic2.use_argb) {
|
||||||
|
fprintf(stderr, "Pictures are not in the same argb format. "
|
||||||
|
"Can't save the difference map.\n");
|
||||||
|
goto End;
|
||||||
|
}
|
||||||
|
if (pic1.use_argb) {
|
||||||
|
int n;
|
||||||
|
fprintf(stderr, "max differences per channel: ");
|
||||||
|
for (n = 0; n < 3; ++n) { // skip the alpha channel
|
||||||
|
const int range = (type == 1) ?
|
||||||
|
SSIMScaleChannel((uint8_t*)pic1.argb + n, pic1.argb_stride * 4,
|
||||||
|
(const uint8_t*)pic2.argb + n, pic2.argb_stride * 4,
|
||||||
|
4, pic1.width, pic1.height, scale) :
|
||||||
|
DiffScaleChannel((uint8_t*)pic1.argb + n, pic1.argb_stride * 4,
|
||||||
|
(const uint8_t*)pic2.argb + n, pic2.argb_stride * 4,
|
||||||
|
4, pic1.width, pic1.height, scale);
|
||||||
|
if (range < 0) fprintf(stderr, "\nError computing diff map\n");
|
||||||
|
fprintf(stderr, "[%d]", range);
|
||||||
|
}
|
||||||
|
fprintf(stderr, "\n");
|
||||||
|
if (use_gray) ConvertToGray(&pic1);
|
||||||
|
} else {
|
||||||
|
fprintf(stderr, "Can only compute the difference map in ARGB format.\n");
|
||||||
|
goto End;
|
||||||
|
}
|
||||||
|
#if !defined(WEBP_REDUCE_CSP)
|
||||||
|
data_size = WebPEncodeLosslessBGRA((const uint8_t*)pic1.argb,
|
||||||
|
pic1.width, pic1.height,
|
||||||
|
pic1.argb_stride * 4,
|
||||||
|
&data);
|
||||||
|
if (data_size == 0) {
|
||||||
|
fprintf(stderr, "Error during lossless encoding.\n");
|
||||||
|
goto End;
|
||||||
|
}
|
||||||
|
ret = ImgIoUtilWriteFile(output, data, data_size) ? 0 : 1;
|
||||||
|
WebPFree(data);
|
||||||
|
if (ret) goto End;
|
||||||
|
#else
|
||||||
|
(void)data;
|
||||||
|
(void)data_size;
|
||||||
|
fprintf(stderr, "Cannot save the difference map. Please recompile "
|
||||||
|
"without the WEBP_REDUCE_CSP flag.\n");
|
||||||
|
#endif // WEBP_REDUCE_CSP
|
||||||
|
}
|
||||||
|
ret = 0;
|
||||||
|
|
||||||
|
End:
|
||||||
|
WebPPictureFree(&pic1);
|
||||||
|
WebPPictureFree(&pic2);
|
||||||
|
FREE_WARGV_AND_RETURN(ret);
|
||||||
|
}
|
129
extras/quality_estimate.c
Normal file
129
extras/quality_estimate.c
Normal file
@ -0,0 +1,129 @@
|
|||||||
|
// Copyright 2016 Google Inc. All Rights Reserved.
|
||||||
|
//
|
||||||
|
// Use of this source code is governed by a BSD-style license
|
||||||
|
// that can be found in the COPYING file in the root of the source
|
||||||
|
// tree. An additional intellectual property rights grant can be found
|
||||||
|
// in the file PATENTS. All contributing project authors may
|
||||||
|
// be found in the AUTHORS file in the root of the source tree.
|
||||||
|
// -----------------------------------------------------------------------------
|
||||||
|
//
|
||||||
|
// VP8EstimateQuality(): rough encoding quality estimate
|
||||||
|
//
|
||||||
|
// Author: Skal (pascal.massimino@gmail.com)
|
||||||
|
|
||||||
|
#include "extras/extras.h"
|
||||||
|
#include "webp/decode.h"
|
||||||
|
|
||||||
|
#include <math.h>
|
||||||
|
|
||||||
|
//------------------------------------------------------------------------------
|
||||||
|
|
||||||
|
#define INVALID_BIT_POS (1ull << 63)
|
||||||
|
|
||||||
|
// In most cases, we don't need to use a full arithmetic decoder, since
|
||||||
|
// all the header's bits are written using a uniform probability of 128.
|
||||||
|
// We can just parse the header as if it was bits (works in 99.999% cases).
|
||||||
|
static WEBP_INLINE uint32_t GetBit(const uint8_t* const data, size_t nb,
|
||||||
|
uint64_t max_size, uint64_t* const bit_pos) {
|
||||||
|
uint32_t val = 0;
|
||||||
|
if (*bit_pos + nb <= 8 * max_size) {
|
||||||
|
while (nb-- > 0) {
|
||||||
|
const uint64_t p = (*bit_pos)++;
|
||||||
|
const int bit = !!(data[p >> 3] & (128 >> ((p & 7))));
|
||||||
|
val = (val << 1) | bit;
|
||||||
|
}
|
||||||
|
} else {
|
||||||
|
*bit_pos = INVALID_BIT_POS;
|
||||||
|
}
|
||||||
|
return val;
|
||||||
|
}
|
||||||
|
|
||||||
|
#define GET_BIT(n) GetBit(data, (n), size, &bit_pos)
|
||||||
|
#define CONDITIONAL_SKIP(n) (GET_BIT(1) ? GET_BIT((n)) : 0)
|
||||||
|
|
||||||
|
int VP8EstimateQuality(const uint8_t* const data, size_t size) {
|
||||||
|
size_t pos = 0;
|
||||||
|
uint64_t bit_pos;
|
||||||
|
uint64_t sig = 0x00;
|
||||||
|
int ok = 0;
|
||||||
|
int Q = -1;
|
||||||
|
WebPBitstreamFeatures features;
|
||||||
|
|
||||||
|
if (data == NULL) return -1;
|
||||||
|
|
||||||
|
if (WebPGetFeatures(data, size, &features) != VP8_STATUS_OK) {
|
||||||
|
return -1; // invalid file
|
||||||
|
}
|
||||||
|
if (features.format == 2) return 101; // lossless
|
||||||
|
if (features.format == 0 || features.has_animation) return -1; // mixed
|
||||||
|
|
||||||
|
while (pos < size) {
|
||||||
|
sig = (sig >> 8) | ((uint64_t)data[pos++] << 40);
|
||||||
|
if ((sig >> 24) == 0x2a019dull) {
|
||||||
|
ok = 1;
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
if (!ok) return -1;
|
||||||
|
if (pos + 4 > size) return -1;
|
||||||
|
|
||||||
|
// Skip main Header
|
||||||
|
// width = (data[pos + 0] | (data[pos + 1] << 8)) & 0x3fff;
|
||||||
|
// height = (data[pos + 2] | (data[pos + 3] << 8)) & 0x3fff;
|
||||||
|
pos += 4;
|
||||||
|
bit_pos = pos * 8;
|
||||||
|
|
||||||
|
GET_BIT(2); // colorspace + clamp type
|
||||||
|
|
||||||
|
// Segment header
|
||||||
|
if (GET_BIT(1)) { // use_segment_
|
||||||
|
int s;
|
||||||
|
const int update_map = GET_BIT(1);
|
||||||
|
if (GET_BIT(1)) { // update data
|
||||||
|
const int absolute_delta = GET_BIT(1);
|
||||||
|
int q[4] = { 0, 0, 0, 0 };
|
||||||
|
for (s = 0; s < 4; ++s) {
|
||||||
|
if (GET_BIT(1)) {
|
||||||
|
q[s] = GET_BIT(7);
|
||||||
|
if (GET_BIT(1)) q[s] = -q[s]; // sign
|
||||||
|
}
|
||||||
|
}
|
||||||
|
if (absolute_delta) Q = q[0]; // just use the first segment's quantizer
|
||||||
|
for (s = 0; s < 4; ++s) CONDITIONAL_SKIP(7); // filter strength
|
||||||
|
}
|
||||||
|
if (update_map) {
|
||||||
|
for (s = 0; s < 3; ++s) CONDITIONAL_SKIP(8);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
// Filter header
|
||||||
|
GET_BIT(1 + 6 + 3); // simple + level + sharpness
|
||||||
|
if (GET_BIT(1)) { // use_lf_delta
|
||||||
|
if (GET_BIT(1)) { // update lf_delta?
|
||||||
|
int n;
|
||||||
|
for (n = 0; n < 4 + 4; ++n) CONDITIONAL_SKIP(6);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
// num partitions
|
||||||
|
GET_BIT(2);
|
||||||
|
|
||||||
|
// ParseQuant
|
||||||
|
{
|
||||||
|
const int base_q = GET_BIT(7);
|
||||||
|
/* dqy1_dc = */ CONDITIONAL_SKIP(5);
|
||||||
|
/* dqy2_dc = */ CONDITIONAL_SKIP(5);
|
||||||
|
/* dqy2_ac = */ CONDITIONAL_SKIP(5);
|
||||||
|
/* dquv_dc = */ CONDITIONAL_SKIP(5);
|
||||||
|
/* dquv_ac = */ CONDITIONAL_SKIP(5);
|
||||||
|
|
||||||
|
if (Q < 0) Q = base_q;
|
||||||
|
}
|
||||||
|
if (bit_pos == INVALID_BIT_POS) return -1;
|
||||||
|
|
||||||
|
// base mapping
|
||||||
|
Q = (127 - Q) * 100 / 127;
|
||||||
|
// correction for power-law behavior in low range
|
||||||
|
if (Q < 80) {
|
||||||
|
Q = (int)(pow(Q / 80., 1. / 0.38) * 80);
|
||||||
|
}
|
||||||
|
return Q;
|
||||||
|
}
|
101
extras/vwebp_sdl.c
Normal file
101
extras/vwebp_sdl.c
Normal file
@ -0,0 +1,101 @@
|
|||||||
|
// Copyright 2017 Google Inc. All Rights Reserved.
|
||||||
|
//
|
||||||
|
// Use of this source code is governed by a BSD-style license
|
||||||
|
// that can be found in the COPYING file in the root of the source
|
||||||
|
// tree. An additional intellectual property rights grant can be found
|
||||||
|
// in the file PATENTS. All contributing project authors may
|
||||||
|
// be found in the AUTHORS file in the root of the source tree.
|
||||||
|
// -----------------------------------------------------------------------------
|
||||||
|
//
|
||||||
|
// Simple SDL-based WebP file viewer.
|
||||||
|
// Does not support animation, just static images.
|
||||||
|
//
|
||||||
|
// Press 'q' to exit.
|
||||||
|
//
|
||||||
|
// Author: James Zern (jzern@google.com)
|
||||||
|
|
||||||
|
#include <stdio.h>
|
||||||
|
|
||||||
|
#ifdef HAVE_CONFIG_H
|
||||||
|
#include "webp/config.h"
|
||||||
|
#endif
|
||||||
|
|
||||||
|
#if defined(WEBP_HAVE_SDL)
|
||||||
|
|
||||||
|
#include "webp_to_sdl.h"
|
||||||
|
#include "webp/decode.h"
|
||||||
|
#include "imageio/imageio_util.h"
|
||||||
|
#include "../examples/unicode.h"
|
||||||
|
|
||||||
|
#if defined(WEBP_HAVE_JUST_SDL_H)
|
||||||
|
#include <SDL.h>
|
||||||
|
#else
|
||||||
|
#include <SDL/SDL.h>
|
||||||
|
#endif
|
||||||
|
|
||||||
|
static void ProcessEvents(void) {
|
||||||
|
int done = 0;
|
||||||
|
SDL_Event event;
|
||||||
|
while (!done && SDL_WaitEvent(&event)) {
|
||||||
|
switch (event.type) {
|
||||||
|
case SDL_KEYUP:
|
||||||
|
switch (event.key.keysym.sym) {
|
||||||
|
case SDLK_q: done = 1; break;
|
||||||
|
default: break;
|
||||||
|
}
|
||||||
|
break;
|
||||||
|
default: break;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
int main(int argc, char* argv[]) {
|
||||||
|
int c;
|
||||||
|
int ok = 0;
|
||||||
|
|
||||||
|
INIT_WARGV(argc, argv);
|
||||||
|
|
||||||
|
for (c = 1; c < argc; ++c) {
|
||||||
|
const char* file = NULL;
|
||||||
|
const uint8_t* webp = NULL;
|
||||||
|
size_t webp_size = 0;
|
||||||
|
if (!strcmp(argv[c], "-h")) {
|
||||||
|
printf("Usage: %s [-h] image.webp [more_files.webp...]\n", argv[0]);
|
||||||
|
FREE_WARGV_AND_RETURN(0);
|
||||||
|
} else {
|
||||||
|
file = (const char*)GET_WARGV(argv, c);
|
||||||
|
}
|
||||||
|
if (file == NULL) continue;
|
||||||
|
if (!ImgIoUtilReadFile(file, &webp, &webp_size)) {
|
||||||
|
WFPRINTF(stderr, "Error opening file: %s\n", (const W_CHAR*)file);
|
||||||
|
goto Error;
|
||||||
|
}
|
||||||
|
if (webp_size != (size_t)(int)webp_size) {
|
||||||
|
free((void*)webp);
|
||||||
|
fprintf(stderr, "File too large.\n");
|
||||||
|
goto Error;
|
||||||
|
}
|
||||||
|
ok = WebPToSDL((const char*)webp, (int)webp_size);
|
||||||
|
free((void*)webp);
|
||||||
|
if (!ok) {
|
||||||
|
WFPRINTF(stderr, "Error decoding file %s\n", (const W_CHAR*)file);
|
||||||
|
goto Error;
|
||||||
|
}
|
||||||
|
ProcessEvents();
|
||||||
|
}
|
||||||
|
ok = 1;
|
||||||
|
|
||||||
|
Error:
|
||||||
|
SDL_Quit();
|
||||||
|
FREE_WARGV_AND_RETURN(ok ? 0 : 1);
|
||||||
|
}
|
||||||
|
|
||||||
|
#else // !WEBP_HAVE_SDL
|
||||||
|
|
||||||
|
int main(int argc, const char* argv[]) {
|
||||||
|
fprintf(stderr, "SDL support not enabled in %s.\n", argv[0]);
|
||||||
|
(void)argc;
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
#endif
|
54
extras/webp_quality.c
Normal file
54
extras/webp_quality.c
Normal file
@ -0,0 +1,54 @@
|
|||||||
|
// Simple tool to roughly evaluate the quality encoding of a webp bitstream
|
||||||
|
//
|
||||||
|
// Result is a *rough* estimation of the quality. You should just consider
|
||||||
|
// the bucket it's in (q > 80? > 50? > 20?) and not take it for face value.
|
||||||
|
/*
|
||||||
|
gcc -o webp_quality webp_quality.c -O3 -I../ -L. -L../imageio \
|
||||||
|
-limageio_util -lwebpextras -lwebp -lm -lpthread
|
||||||
|
*/
|
||||||
|
|
||||||
|
#include <stdio.h>
|
||||||
|
#include <stdlib.h>
|
||||||
|
#include <string.h>
|
||||||
|
|
||||||
|
#include "extras/extras.h"
|
||||||
|
#include "imageio/imageio_util.h"
|
||||||
|
#include "../examples/unicode.h"
|
||||||
|
|
||||||
|
int main(int argc, const char* argv[]) {
|
||||||
|
int c;
|
||||||
|
int quiet = 0;
|
||||||
|
int ok = 1;
|
||||||
|
|
||||||
|
INIT_WARGV(argc, argv);
|
||||||
|
|
||||||
|
for (c = 1; ok && c < argc; ++c) {
|
||||||
|
if (!strcmp(argv[c], "-quiet")) {
|
||||||
|
quiet = 1;
|
||||||
|
} else if (!strcmp(argv[c], "-help") || !strcmp(argv[c], "-h")) {
|
||||||
|
printf("webp_quality [-h][-quiet] webp_files...\n");
|
||||||
|
FREE_WARGV_AND_RETURN(0);
|
||||||
|
} else {
|
||||||
|
const char* const filename = (const char*)GET_WARGV(argv, c);
|
||||||
|
const uint8_t* data = NULL;
|
||||||
|
size_t data_size = 0;
|
||||||
|
int q;
|
||||||
|
ok = ImgIoUtilReadFile(filename, &data, &data_size);
|
||||||
|
if (!ok) break;
|
||||||
|
q = VP8EstimateQuality(data, data_size);
|
||||||
|
if (!quiet) WPRINTF("[%s] ", (const W_CHAR*)filename);
|
||||||
|
if (q < 0) {
|
||||||
|
fprintf(stderr, "Not a WebP file, or not a lossy WebP file.\n");
|
||||||
|
ok = 0;
|
||||||
|
} else {
|
||||||
|
if (!quiet) {
|
||||||
|
printf("Estimated quality factor: %d\n", q);
|
||||||
|
} else {
|
||||||
|
printf("%d\n", q); // just print the number
|
||||||
|
}
|
||||||
|
}
|
||||||
|
free((void*)data);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
FREE_WARGV_AND_RETURN(ok ? 0 : 1);
|
||||||
|
}
|
110
extras/webp_to_sdl.c
Normal file
110
extras/webp_to_sdl.c
Normal file
@ -0,0 +1,110 @@
|
|||||||
|
// Copyright 2017 Google Inc. All Rights Reserved.
|
||||||
|
//
|
||||||
|
// Use of this source code is governed by a BSD-style license
|
||||||
|
// that can be found in the COPYING file in the root of the source
|
||||||
|
// tree. An additional intellectual property rights grant can be found
|
||||||
|
// in the file PATENTS. All contributing project authors may
|
||||||
|
// be found in the AUTHORS file in the root of the source tree.
|
||||||
|
// -----------------------------------------------------------------------------
|
||||||
|
//
|
||||||
|
// Simple WebP-to-SDL wrapper. Useful for emscripten.
|
||||||
|
//
|
||||||
|
// Author: James Zern (jzern@google.com)
|
||||||
|
|
||||||
|
#ifdef HAVE_CONFIG_H
|
||||||
|
#include "src/webp/config.h"
|
||||||
|
#endif
|
||||||
|
|
||||||
|
#if defined(WEBP_HAVE_SDL)
|
||||||
|
|
||||||
|
#include "webp_to_sdl.h"
|
||||||
|
|
||||||
|
#include <stdio.h>
|
||||||
|
#include "src/webp/decode.h"
|
||||||
|
|
||||||
|
#if defined(WEBP_HAVE_JUST_SDL_H)
|
||||||
|
#include <SDL.h>
|
||||||
|
#else
|
||||||
|
#include <SDL/SDL.h>
|
||||||
|
#endif
|
||||||
|
|
||||||
|
static int init_ok = 0;
|
||||||
|
int WebPToSDL(const char* data, unsigned int data_size) {
|
||||||
|
int ok = 0;
|
||||||
|
VP8StatusCode status;
|
||||||
|
WebPDecoderConfig config;
|
||||||
|
WebPBitstreamFeatures* const input = &config.input;
|
||||||
|
WebPDecBuffer* const output = &config.output;
|
||||||
|
SDL_Surface* screen = NULL;
|
||||||
|
SDL_Surface* surface = NULL;
|
||||||
|
|
||||||
|
if (!WebPInitDecoderConfig(&config)) {
|
||||||
|
fprintf(stderr, "Library version mismatch!\n");
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (!init_ok) {
|
||||||
|
SDL_Init(SDL_INIT_VIDEO);
|
||||||
|
init_ok = 1;
|
||||||
|
}
|
||||||
|
|
||||||
|
status = WebPGetFeatures((uint8_t*)data, (size_t)data_size, &config.input);
|
||||||
|
if (status != VP8_STATUS_OK) goto Error;
|
||||||
|
|
||||||
|
screen = SDL_SetVideoMode(input->width, input->height, 32, SDL_SWSURFACE);
|
||||||
|
if (screen == NULL) {
|
||||||
|
fprintf(stderr, "Unable to set video mode (32bpp %dx%d)!\n",
|
||||||
|
input->width, input->height);
|
||||||
|
goto Error;
|
||||||
|
}
|
||||||
|
|
||||||
|
surface = SDL_CreateRGBSurface(SDL_SWSURFACE,
|
||||||
|
input->width, input->height, 32,
|
||||||
|
0x000000ffu, // R mask
|
||||||
|
0x0000ff00u, // G mask
|
||||||
|
0x00ff0000u, // B mask
|
||||||
|
0xff000000u); // A mask
|
||||||
|
|
||||||
|
if (surface == NULL) {
|
||||||
|
fprintf(stderr, "Unable to create %dx%d RGBA surface!\n",
|
||||||
|
input->width, input->height);
|
||||||
|
goto Error;
|
||||||
|
}
|
||||||
|
if (SDL_MUSTLOCK(surface)) SDL_LockSurface(surface);
|
||||||
|
|
||||||
|
#if SDL_BYTEORDER == SDL_BIG_ENDIAN
|
||||||
|
output->colorspace = MODE_BGRA;
|
||||||
|
#else
|
||||||
|
output->colorspace = MODE_RGBA;
|
||||||
|
#endif
|
||||||
|
output->width = surface->w;
|
||||||
|
output->height = surface->h;
|
||||||
|
output->u.RGBA.rgba = surface->pixels;
|
||||||
|
output->u.RGBA.stride = surface->pitch;
|
||||||
|
output->u.RGBA.size = surface->pitch * surface->h;
|
||||||
|
output->is_external_memory = 1;
|
||||||
|
|
||||||
|
status = WebPDecode((const uint8_t*)data, (size_t)data_size, &config);
|
||||||
|
if (status != VP8_STATUS_OK) {
|
||||||
|
fprintf(stderr, "Error decoding image (%d)\n", status);
|
||||||
|
goto Error;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (SDL_MUSTLOCK(surface)) SDL_UnlockSurface(surface);
|
||||||
|
if (SDL_BlitSurface(surface, NULL, screen, NULL) ||
|
||||||
|
SDL_Flip(screen)) {
|
||||||
|
goto Error;
|
||||||
|
}
|
||||||
|
|
||||||
|
ok = 1;
|
||||||
|
|
||||||
|
Error:
|
||||||
|
SDL_FreeSurface(surface);
|
||||||
|
SDL_FreeSurface(screen);
|
||||||
|
WebPFreeDecBuffer(output);
|
||||||
|
return ok;
|
||||||
|
}
|
||||||
|
|
||||||
|
//------------------------------------------------------------------------------
|
||||||
|
|
||||||
|
#endif // WEBP_HAVE_SDL
|
22
extras/webp_to_sdl.h
Normal file
22
extras/webp_to_sdl.h
Normal file
@ -0,0 +1,22 @@
|
|||||||
|
// Copyright 2017 Google Inc. All Rights Reserved.
|
||||||
|
//
|
||||||
|
// Use of this source code is governed by a BSD-style license
|
||||||
|
// that can be found in the COPYING file in the root of the source
|
||||||
|
// tree. An additional intellectual property rights grant can be found
|
||||||
|
// in the file PATENTS. All contributing project authors may
|
||||||
|
// be found in the AUTHORS file in the root of the source tree.
|
||||||
|
// -----------------------------------------------------------------------------
|
||||||
|
//
|
||||||
|
// Simple WebP-to-SDL wrapper. Useful for emscripten.
|
||||||
|
//
|
||||||
|
// Author: James Zern (jzern@google.com)
|
||||||
|
|
||||||
|
#ifndef WEBP_EXTRAS_WEBP_TO_SDL_H_
|
||||||
|
#define WEBP_EXTRAS_WEBP_TO_SDL_H_
|
||||||
|
|
||||||
|
// Exports the method WebPToSDL(const char* data, int data_size) which decodes
|
||||||
|
// a WebP bitstream into an RGBA SDL surface.
|
||||||
|
// Return false on failure.
|
||||||
|
extern int WebPToSDL(const char* data, unsigned int data_size);
|
||||||
|
|
||||||
|
#endif // WEBP_EXTRAS_WEBP_TO_SDL_H_
|
14
gradle.properties
Normal file
14
gradle.properties
Normal file
@ -0,0 +1,14 @@
|
|||||||
|
# Project-wide Gradle settings.
|
||||||
|
|
||||||
|
# IDE (e.g. Android Studio) users:
|
||||||
|
# Gradle settings configured through the IDE *will override*
|
||||||
|
# any settings specified in this file.
|
||||||
|
|
||||||
|
# For more details on how to configure your build environment visit
|
||||||
|
# http://www.gradle.org/docs/current/userguide/build_environment.html
|
||||||
|
|
||||||
|
# Versions for gradle
|
||||||
|
BUILD_TOOLS_VERSION=23.0.3
|
||||||
|
COMPILE_SDK_VERSION=23
|
||||||
|
ANDROID_GRADLE_PLUGIN_VERSION=1.5.0
|
||||||
|
GRADLE_DOWNLOAD_TASK_VERSION=2.1.0
|
BIN
gradle/wrapper/gradle-wrapper.jar
vendored
Normal file
BIN
gradle/wrapper/gradle-wrapper.jar
vendored
Normal file
Binary file not shown.
5
gradle/wrapper/gradle-wrapper.properties
vendored
Normal file
5
gradle/wrapper/gradle-wrapper.properties
vendored
Normal file
@ -0,0 +1,5 @@
|
|||||||
|
distributionBase=GRADLE_USER_HOME
|
||||||
|
distributionPath=wrapper/dists
|
||||||
|
distributionUrl=https\://services.gradle.org/distributions/gradle-6.1.1-bin.zip
|
||||||
|
zipStoreBase=GRADLE_USER_HOME
|
||||||
|
zipStorePath=wrapper/dists
|
183
gradlew
vendored
Executable file
183
gradlew
vendored
Executable file
@ -0,0 +1,183 @@
|
|||||||
|
#!/usr/bin/env sh
|
||||||
|
|
||||||
|
#
|
||||||
|
# Copyright 2015 the original author or authors.
|
||||||
|
#
|
||||||
|
# Licensed under the Apache License, Version 2.0 (the "License");
|
||||||
|
# you may not use this file except in compliance with the License.
|
||||||
|
# You may obtain a copy of the License at
|
||||||
|
#
|
||||||
|
# https://www.apache.org/licenses/LICENSE-2.0
|
||||||
|
#
|
||||||
|
# Unless required by applicable law or agreed to in writing, software
|
||||||
|
# distributed under the License is distributed on an "AS IS" BASIS,
|
||||||
|
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||||
|
# See the License for the specific language governing permissions and
|
||||||
|
# limitations under the License.
|
||||||
|
#
|
||||||
|
|
||||||
|
##############################################################################
|
||||||
|
##
|
||||||
|
## Gradle start up script for UN*X
|
||||||
|
##
|
||||||
|
##############################################################################
|
||||||
|
|
||||||
|
# Attempt to set APP_HOME
|
||||||
|
# Resolve links: $0 may be a link
|
||||||
|
PRG="$0"
|
||||||
|
# Need this for relative symlinks.
|
||||||
|
while [ -h "$PRG" ] ; do
|
||||||
|
ls=`ls -ld "$PRG"`
|
||||||
|
link=`expr "$ls" : '.*-> \(.*\)$'`
|
||||||
|
if expr "$link" : '/.*' > /dev/null; then
|
||||||
|
PRG="$link"
|
||||||
|
else
|
||||||
|
PRG=`dirname "$PRG"`"/$link"
|
||||||
|
fi
|
||||||
|
done
|
||||||
|
SAVED="`pwd`"
|
||||||
|
cd "`dirname \"$PRG\"`/" >/dev/null
|
||||||
|
APP_HOME="`pwd -P`"
|
||||||
|
cd "$SAVED" >/dev/null
|
||||||
|
|
||||||
|
APP_NAME="Gradle"
|
||||||
|
APP_BASE_NAME=`basename "$0"`
|
||||||
|
|
||||||
|
# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
|
||||||
|
DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
|
||||||
|
|
||||||
|
# Use the maximum available, or set MAX_FD != -1 to use that value.
|
||||||
|
MAX_FD="maximum"
|
||||||
|
|
||||||
|
warn () {
|
||||||
|
echo "$*"
|
||||||
|
}
|
||||||
|
|
||||||
|
die () {
|
||||||
|
echo
|
||||||
|
echo "$*"
|
||||||
|
echo
|
||||||
|
exit 1
|
||||||
|
}
|
||||||
|
|
||||||
|
# OS specific support (must be 'true' or 'false').
|
||||||
|
cygwin=false
|
||||||
|
msys=false
|
||||||
|
darwin=false
|
||||||
|
nonstop=false
|
||||||
|
case "`uname`" in
|
||||||
|
CYGWIN* )
|
||||||
|
cygwin=true
|
||||||
|
;;
|
||||||
|
Darwin* )
|
||||||
|
darwin=true
|
||||||
|
;;
|
||||||
|
MINGW* )
|
||||||
|
msys=true
|
||||||
|
;;
|
||||||
|
NONSTOP* )
|
||||||
|
nonstop=true
|
||||||
|
;;
|
||||||
|
esac
|
||||||
|
|
||||||
|
CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
|
||||||
|
|
||||||
|
# Determine the Java command to use to start the JVM.
|
||||||
|
if [ -n "$JAVA_HOME" ] ; then
|
||||||
|
if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
|
||||||
|
# IBM's JDK on AIX uses strange locations for the executables
|
||||||
|
JAVACMD="$JAVA_HOME/jre/sh/java"
|
||||||
|
else
|
||||||
|
JAVACMD="$JAVA_HOME/bin/java"
|
||||||
|
fi
|
||||||
|
if [ ! -x "$JAVACMD" ] ; then
|
||||||
|
die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
|
||||||
|
|
||||||
|
Please set the JAVA_HOME variable in your environment to match the
|
||||||
|
location of your Java installation."
|
||||||
|
fi
|
||||||
|
else
|
||||||
|
JAVACMD="java"
|
||||||
|
which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
|
||||||
|
|
||||||
|
Please set the JAVA_HOME variable in your environment to match the
|
||||||
|
location of your Java installation."
|
||||||
|
fi
|
||||||
|
|
||||||
|
# Increase the maximum file descriptors if we can.
|
||||||
|
if [ "$cygwin" = "false" -a "$darwin" = "false" -a "$nonstop" = "false" ] ; then
|
||||||
|
MAX_FD_LIMIT=`ulimit -H -n`
|
||||||
|
if [ $? -eq 0 ] ; then
|
||||||
|
if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then
|
||||||
|
MAX_FD="$MAX_FD_LIMIT"
|
||||||
|
fi
|
||||||
|
ulimit -n $MAX_FD
|
||||||
|
if [ $? -ne 0 ] ; then
|
||||||
|
warn "Could not set maximum file descriptor limit: $MAX_FD"
|
||||||
|
fi
|
||||||
|
else
|
||||||
|
warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT"
|
||||||
|
fi
|
||||||
|
fi
|
||||||
|
|
||||||
|
# For Darwin, add options to specify how the application appears in the dock
|
||||||
|
if $darwin; then
|
||||||
|
GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\""
|
||||||
|
fi
|
||||||
|
|
||||||
|
# For Cygwin or MSYS, switch paths to Windows format before running java
|
||||||
|
if [ "$cygwin" = "true" -o "$msys" = "true" ] ; then
|
||||||
|
APP_HOME=`cygpath --path --mixed "$APP_HOME"`
|
||||||
|
CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`
|
||||||
|
JAVACMD=`cygpath --unix "$JAVACMD"`
|
||||||
|
|
||||||
|
# We build the pattern for arguments to be converted via cygpath
|
||||||
|
ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null`
|
||||||
|
SEP=""
|
||||||
|
for dir in $ROOTDIRSRAW ; do
|
||||||
|
ROOTDIRS="$ROOTDIRS$SEP$dir"
|
||||||
|
SEP="|"
|
||||||
|
done
|
||||||
|
OURCYGPATTERN="(^($ROOTDIRS))"
|
||||||
|
# Add a user-defined pattern to the cygpath arguments
|
||||||
|
if [ "$GRADLE_CYGPATTERN" != "" ] ; then
|
||||||
|
OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)"
|
||||||
|
fi
|
||||||
|
# Now convert the arguments - kludge to limit ourselves to /bin/sh
|
||||||
|
i=0
|
||||||
|
for arg in "$@" ; do
|
||||||
|
CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -`
|
||||||
|
CHECK2=`echo "$arg"|egrep -c "^-"` ### Determine if an option
|
||||||
|
|
||||||
|
if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then ### Added a condition
|
||||||
|
eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"`
|
||||||
|
else
|
||||||
|
eval `echo args$i`="\"$arg\""
|
||||||
|
fi
|
||||||
|
i=`expr $i + 1`
|
||||||
|
done
|
||||||
|
case $i in
|
||||||
|
0) set -- ;;
|
||||||
|
1) set -- "$args0" ;;
|
||||||
|
2) set -- "$args0" "$args1" ;;
|
||||||
|
3) set -- "$args0" "$args1" "$args2" ;;
|
||||||
|
4) set -- "$args0" "$args1" "$args2" "$args3" ;;
|
||||||
|
5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
|
||||||
|
6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
|
||||||
|
7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
|
||||||
|
8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
|
||||||
|
9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
|
||||||
|
esac
|
||||||
|
fi
|
||||||
|
|
||||||
|
# Escape application args
|
||||||
|
save () {
|
||||||
|
for i do printf %s\\n "$i" | sed "s/'/'\\\\''/g;1s/^/'/;\$s/\$/' \\\\/" ; done
|
||||||
|
echo " "
|
||||||
|
}
|
||||||
|
APP_ARGS=`save "$@"`
|
||||||
|
|
||||||
|
# Collect all arguments for the java command, following the shell quoting and substitution rules
|
||||||
|
eval set -- $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS "\"-Dorg.gradle.appname=$APP_BASE_NAME\"" -classpath "\"$CLASSPATH\"" org.gradle.wrapper.GradleWrapperMain "$APP_ARGS"
|
||||||
|
|
||||||
|
exec "$JAVACMD" "$@"
|
100
gradlew.bat
vendored
Normal file
100
gradlew.bat
vendored
Normal file
@ -0,0 +1,100 @@
|
|||||||
|
@rem
|
||||||
|
@rem Copyright 2015 the original author or authors.
|
||||||
|
@rem
|
||||||
|
@rem Licensed under the Apache License, Version 2.0 (the "License");
|
||||||
|
@rem you may not use this file except in compliance with the License.
|
||||||
|
@rem You may obtain a copy of the License at
|
||||||
|
@rem
|
||||||
|
@rem https://www.apache.org/licenses/LICENSE-2.0
|
||||||
|
@rem
|
||||||
|
@rem Unless required by applicable law or agreed to in writing, software
|
||||||
|
@rem distributed under the License is distributed on an "AS IS" BASIS,
|
||||||
|
@rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||||
|
@rem See the License for the specific language governing permissions and
|
||||||
|
@rem limitations under the License.
|
||||||
|
@rem
|
||||||
|
|
||||||
|
@if "%DEBUG%" == "" @echo off
|
||||||
|
@rem ##########################################################################
|
||||||
|
@rem
|
||||||
|
@rem Gradle startup script for Windows
|
||||||
|
@rem
|
||||||
|
@rem ##########################################################################
|
||||||
|
|
||||||
|
@rem Set local scope for the variables with windows NT shell
|
||||||
|
if "%OS%"=="Windows_NT" setlocal
|
||||||
|
|
||||||
|
set DIRNAME=%~dp0
|
||||||
|
if "%DIRNAME%" == "" set DIRNAME=.
|
||||||
|
set APP_BASE_NAME=%~n0
|
||||||
|
set APP_HOME=%DIRNAME%
|
||||||
|
|
||||||
|
@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
|
||||||
|
set DEFAULT_JVM_OPTS="-Xmx64m" "-Xms64m"
|
||||||
|
|
||||||
|
@rem Find java.exe
|
||||||
|
if defined JAVA_HOME goto findJavaFromJavaHome
|
||||||
|
|
||||||
|
set JAVA_EXE=java.exe
|
||||||
|
%JAVA_EXE% -version >NUL 2>&1
|
||||||
|
if "%ERRORLEVEL%" == "0" goto init
|
||||||
|
|
||||||
|
echo.
|
||||||
|
echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
|
||||||
|
echo.
|
||||||
|
echo Please set the JAVA_HOME variable in your environment to match the
|
||||||
|
echo location of your Java installation.
|
||||||
|
|
||||||
|
goto fail
|
||||||
|
|
||||||
|
:findJavaFromJavaHome
|
||||||
|
set JAVA_HOME=%JAVA_HOME:"=%
|
||||||
|
set JAVA_EXE=%JAVA_HOME%/bin/java.exe
|
||||||
|
|
||||||
|
if exist "%JAVA_EXE%" goto init
|
||||||
|
|
||||||
|
echo.
|
||||||
|
echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
|
||||||
|
echo.
|
||||||
|
echo Please set the JAVA_HOME variable in your environment to match the
|
||||||
|
echo location of your Java installation.
|
||||||
|
|
||||||
|
goto fail
|
||||||
|
|
||||||
|
:init
|
||||||
|
@rem Get command-line arguments, handling Windows variants
|
||||||
|
|
||||||
|
if not "%OS%" == "Windows_NT" goto win9xME_args
|
||||||
|
|
||||||
|
:win9xME_args
|
||||||
|
@rem Slurp the command line arguments.
|
||||||
|
set CMD_LINE_ARGS=
|
||||||
|
set _SKIP=2
|
||||||
|
|
||||||
|
:win9xME_args_slurp
|
||||||
|
if "x%~1" == "x" goto execute
|
||||||
|
|
||||||
|
set CMD_LINE_ARGS=%*
|
||||||
|
|
||||||
|
:execute
|
||||||
|
@rem Setup the command line
|
||||||
|
|
||||||
|
set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
|
||||||
|
|
||||||
|
@rem Execute Gradle
|
||||||
|
"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS%
|
||||||
|
|
||||||
|
:end
|
||||||
|
@rem End local scope for the variables with windows NT shell
|
||||||
|
if "%ERRORLEVEL%"=="0" goto mainEnd
|
||||||
|
|
||||||
|
:fail
|
||||||
|
rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
|
||||||
|
rem the _cmd.exe /c_ return code!
|
||||||
|
if not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
|
||||||
|
exit /b 1
|
||||||
|
|
||||||
|
:mainEnd
|
||||||
|
if "%OS%"=="Windows_NT" endlocal
|
||||||
|
|
||||||
|
:omega
|
57
imageio/Android.mk
Normal file
57
imageio/Android.mk
Normal file
@ -0,0 +1,57 @@
|
|||||||
|
# Ignore this file during non-NDK builds.
|
||||||
|
ifdef NDK_ROOT
|
||||||
|
LOCAL_PATH := $(call my-dir)
|
||||||
|
|
||||||
|
################################################################################
|
||||||
|
# libimageio_util
|
||||||
|
|
||||||
|
include $(CLEAR_VARS)
|
||||||
|
|
||||||
|
LOCAL_SRC_FILES := \
|
||||||
|
imageio_util.c \
|
||||||
|
|
||||||
|
LOCAL_CFLAGS := $(WEBP_CFLAGS)
|
||||||
|
LOCAL_C_INCLUDES := $(LOCAL_PATH)/../src
|
||||||
|
|
||||||
|
LOCAL_MODULE := imageio_util
|
||||||
|
|
||||||
|
include $(BUILD_STATIC_LIBRARY)
|
||||||
|
|
||||||
|
################################################################################
|
||||||
|
# libimagedec
|
||||||
|
|
||||||
|
include $(CLEAR_VARS)
|
||||||
|
|
||||||
|
LOCAL_SRC_FILES := \
|
||||||
|
image_dec.c \
|
||||||
|
jpegdec.c \
|
||||||
|
metadata.c \
|
||||||
|
pngdec.c \
|
||||||
|
pnmdec.c \
|
||||||
|
tiffdec.c \
|
||||||
|
webpdec.c \
|
||||||
|
|
||||||
|
LOCAL_CFLAGS := $(WEBP_CFLAGS)
|
||||||
|
LOCAL_C_INCLUDES := $(LOCAL_PATH)/../src
|
||||||
|
LOCAL_STATIC_LIBRARIES := imageio_util
|
||||||
|
|
||||||
|
LOCAL_MODULE := imagedec
|
||||||
|
|
||||||
|
include $(BUILD_STATIC_LIBRARY)
|
||||||
|
|
||||||
|
################################################################################
|
||||||
|
# libimageenc
|
||||||
|
|
||||||
|
include $(CLEAR_VARS)
|
||||||
|
|
||||||
|
LOCAL_SRC_FILES := \
|
||||||
|
image_enc.c \
|
||||||
|
|
||||||
|
LOCAL_CFLAGS := $(WEBP_CFLAGS)
|
||||||
|
LOCAL_C_INCLUDES := $(LOCAL_PATH)/../src
|
||||||
|
LOCAL_STATIC_LIBRARIES := imageio_util
|
||||||
|
|
||||||
|
LOCAL_MODULE := imageenc
|
||||||
|
|
||||||
|
include $(BUILD_STATIC_LIBRARY)
|
||||||
|
endif # NDK_ROOT
|
32
imageio/Makefile.am
Normal file
32
imageio/Makefile.am
Normal file
@ -0,0 +1,32 @@
|
|||||||
|
AM_CPPFLAGS += -I$(top_builddir)/src -I$(top_srcdir)/src
|
||||||
|
noinst_LTLIBRARIES =
|
||||||
|
noinst_LTLIBRARIES += libimageio_util.la
|
||||||
|
if BUILD_DEMUX
|
||||||
|
noinst_LTLIBRARIES += libimagedec.la
|
||||||
|
endif
|
||||||
|
noinst_LTLIBRARIES += libimageenc.la
|
||||||
|
|
||||||
|
noinst_HEADERS =
|
||||||
|
noinst_HEADERS += ../src/webp/decode.h
|
||||||
|
noinst_HEADERS += ../src/webp/types.h
|
||||||
|
|
||||||
|
libimageio_util_la_SOURCES =
|
||||||
|
libimageio_util_la_SOURCES += imageio_util.c imageio_util.h
|
||||||
|
|
||||||
|
libimagedec_la_SOURCES =
|
||||||
|
libimagedec_la_SOURCES += image_dec.c image_dec.h
|
||||||
|
libimagedec_la_SOURCES += jpegdec.c jpegdec.h
|
||||||
|
libimagedec_la_SOURCES += metadata.c metadata.h
|
||||||
|
libimagedec_la_SOURCES += pngdec.c pngdec.h
|
||||||
|
libimagedec_la_SOURCES += pnmdec.c pnmdec.h
|
||||||
|
libimagedec_la_SOURCES += tiffdec.c tiffdec.h
|
||||||
|
libimagedec_la_SOURCES += webpdec.c webpdec.h
|
||||||
|
libimagedec_la_SOURCES += wicdec.c wicdec.h
|
||||||
|
libimagedec_la_CPPFLAGS = $(JPEG_INCLUDES) $(PNG_INCLUDES) $(TIFF_INCLUDES)
|
||||||
|
libimagedec_la_CPPFLAGS += $(AM_CPPFLAGS)
|
||||||
|
libimagedec_la_LIBADD = ../src/demux/libwebpdemux.la
|
||||||
|
|
||||||
|
libimageenc_la_SOURCES =
|
||||||
|
libimageenc_la_SOURCES += image_enc.c image_enc.h
|
||||||
|
libimageenc_la_CPPFLAGS = $(JPEG_INCLUDES) $(PNG_INCLUDES) $(TIFF_INCLUDES)
|
||||||
|
libimageenc_la_CPPFLAGS += $(AM_CPPFLAGS)
|
84
imageio/image_dec.c
Normal file
84
imageio/image_dec.c
Normal file
@ -0,0 +1,84 @@
|
|||||||
|
// Copyright 2016 Google Inc. All Rights Reserved.
|
||||||
|
//
|
||||||
|
// Use of this source code is governed by a BSD-style license
|
||||||
|
// that can be found in the COPYING file in the root of the source
|
||||||
|
// tree. An additional intellectual property rights grant can be found
|
||||||
|
// in the file PATENTS. All contributing project authors may
|
||||||
|
// be found in the AUTHORS file in the root of the source tree.
|
||||||
|
// -----------------------------------------------------------------------------
|
||||||
|
//
|
||||||
|
// Generic image-type guessing.
|
||||||
|
|
||||||
|
#include "./image_dec.h"
|
||||||
|
|
||||||
|
const char* WebPGetEnabledInputFileFormats(void) {
|
||||||
|
return "WebP"
|
||||||
|
#ifdef WEBP_HAVE_JPEG
|
||||||
|
", JPEG"
|
||||||
|
#endif
|
||||||
|
#ifdef WEBP_HAVE_PNG
|
||||||
|
", PNG"
|
||||||
|
#endif
|
||||||
|
", PNM (PGM, PPM, PAM)"
|
||||||
|
#ifdef WEBP_HAVE_TIFF
|
||||||
|
", TIFF"
|
||||||
|
#endif
|
||||||
|
#ifdef HAVE_WINCODEC_H
|
||||||
|
", Windows Imaging Component (WIC)"
|
||||||
|
#endif
|
||||||
|
"";
|
||||||
|
}
|
||||||
|
|
||||||
|
static WEBP_INLINE uint32_t GetBE32(const uint8_t buf[]) {
|
||||||
|
return ((uint32_t)buf[0] << 24) | (buf[1] << 16) | (buf[2] << 8) | buf[3];
|
||||||
|
}
|
||||||
|
|
||||||
|
WebPInputFileFormat WebPGuessImageType(const uint8_t* const data,
|
||||||
|
size_t data_size) {
|
||||||
|
WebPInputFileFormat format = WEBP_UNSUPPORTED_FORMAT;
|
||||||
|
if (data != NULL && data_size >= 12) {
|
||||||
|
const uint32_t magic1 = GetBE32(data + 0);
|
||||||
|
const uint32_t magic2 = GetBE32(data + 8);
|
||||||
|
if (magic1 == 0x89504E47U) {
|
||||||
|
format = WEBP_PNG_FORMAT;
|
||||||
|
} else if (magic1 >= 0xFFD8FF00U && magic1 <= 0xFFD8FFFFU) {
|
||||||
|
format = WEBP_JPEG_FORMAT;
|
||||||
|
} else if (magic1 == 0x49492A00 || magic1 == 0x4D4D002A) {
|
||||||
|
format = WEBP_TIFF_FORMAT;
|
||||||
|
} else if (magic1 == 0x52494646 && magic2 == 0x57454250) {
|
||||||
|
format = WEBP_WEBP_FORMAT;
|
||||||
|
} else if (((magic1 >> 24) & 0xff) == 'P') {
|
||||||
|
const int type = (magic1 >> 16) & 0xff;
|
||||||
|
// we only support 'P5 -> P7' for now.
|
||||||
|
if (type >= '5' && type <= '7') format = WEBP_PNM_FORMAT;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
return format;
|
||||||
|
}
|
||||||
|
|
||||||
|
static int FailReader(const uint8_t* const data, size_t data_size,
|
||||||
|
struct WebPPicture* const pic,
|
||||||
|
int keep_alpha, struct Metadata* const metadata) {
|
||||||
|
(void)data;
|
||||||
|
(void)data_size;
|
||||||
|
(void)pic;
|
||||||
|
(void)keep_alpha;
|
||||||
|
(void)metadata;
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
WebPImageReader WebPGetImageReader(WebPInputFileFormat format) {
|
||||||
|
switch (format) {
|
||||||
|
case WEBP_PNG_FORMAT: return ReadPNG;
|
||||||
|
case WEBP_JPEG_FORMAT: return ReadJPEG;
|
||||||
|
case WEBP_TIFF_FORMAT: return ReadTIFF;
|
||||||
|
case WEBP_WEBP_FORMAT: return ReadWebP;
|
||||||
|
case WEBP_PNM_FORMAT: return ReadPNM;
|
||||||
|
default: return FailReader;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
WebPImageReader WebPGuessImageReader(const uint8_t* const data,
|
||||||
|
size_t data_size) {
|
||||||
|
return WebPGetImageReader(WebPGuessImageType(data, data_size));
|
||||||
|
}
|
70
imageio/image_dec.h
Normal file
70
imageio/image_dec.h
Normal file
@ -0,0 +1,70 @@
|
|||||||
|
// Copyright 2016 Google Inc. All Rights Reserved.
|
||||||
|
//
|
||||||
|
// Use of this source code is governed by a BSD-style license
|
||||||
|
// that can be found in the COPYING file in the root of the source
|
||||||
|
// tree. An additional intellectual property rights grant can be found
|
||||||
|
// in the file PATENTS. All contributing project authors may
|
||||||
|
// be found in the AUTHORS file in the root of the source tree.
|
||||||
|
// -----------------------------------------------------------------------------
|
||||||
|
//
|
||||||
|
// All-in-one library to decode PNG/JPEG/WebP/TIFF/WIC input images.
|
||||||
|
//
|
||||||
|
// Author: Skal (pascal.massimino@gmail.com)
|
||||||
|
|
||||||
|
#ifndef WEBP_IMAGEIO_IMAGE_DEC_H_
|
||||||
|
#define WEBP_IMAGEIO_IMAGE_DEC_H_
|
||||||
|
|
||||||
|
#include "webp/types.h"
|
||||||
|
|
||||||
|
#ifdef HAVE_CONFIG_H
|
||||||
|
#include "webp/config.h"
|
||||||
|
#endif
|
||||||
|
|
||||||
|
#include "./metadata.h"
|
||||||
|
#include "./jpegdec.h"
|
||||||
|
#include "./pngdec.h"
|
||||||
|
#include "./pnmdec.h"
|
||||||
|
#include "./tiffdec.h"
|
||||||
|
#include "./webpdec.h"
|
||||||
|
#include "./wicdec.h"
|
||||||
|
|
||||||
|
#ifdef __cplusplus
|
||||||
|
extern "C" {
|
||||||
|
#endif
|
||||||
|
|
||||||
|
typedef enum {
|
||||||
|
WEBP_PNG_FORMAT = 0,
|
||||||
|
WEBP_JPEG_FORMAT,
|
||||||
|
WEBP_TIFF_FORMAT,
|
||||||
|
WEBP_WEBP_FORMAT,
|
||||||
|
WEBP_PNM_FORMAT,
|
||||||
|
WEBP_UNSUPPORTED_FORMAT
|
||||||
|
} WebPInputFileFormat;
|
||||||
|
|
||||||
|
// Returns a comma separated list of enabled input formats.
|
||||||
|
const char* WebPGetEnabledInputFileFormats(void);
|
||||||
|
|
||||||
|
// Try to infer the image format. 'data_size' should be larger than 12.
|
||||||
|
// Returns WEBP_UNSUPPORTED_FORMAT if format can't be guess safely.
|
||||||
|
WebPInputFileFormat WebPGuessImageType(const uint8_t* const data,
|
||||||
|
size_t data_size);
|
||||||
|
|
||||||
|
// Signature for common image-reading functions (ReadPNG, ReadJPEG, ...)
|
||||||
|
typedef int (*WebPImageReader)(const uint8_t* const data, size_t data_size,
|
||||||
|
struct WebPPicture* const pic,
|
||||||
|
int keep_alpha, struct Metadata* const metadata);
|
||||||
|
|
||||||
|
// Return the reader associated to a given file format.
|
||||||
|
WebPImageReader WebPGetImageReader(WebPInputFileFormat format);
|
||||||
|
|
||||||
|
// This function is similar to WebPGuessImageType(), but returns a
|
||||||
|
// suitable reader function. The returned reader is never NULL, but
|
||||||
|
// unknown formats will return an always-failing valid reader.
|
||||||
|
WebPImageReader WebPGuessImageReader(const uint8_t* const data,
|
||||||
|
size_t data_size);
|
||||||
|
|
||||||
|
#ifdef __cplusplus
|
||||||
|
} // extern "C"
|
||||||
|
#endif
|
||||||
|
|
||||||
|
#endif // WEBP_IMAGEIO_IMAGE_DEC_H_
|
615
imageio/image_enc.c
Normal file
615
imageio/image_enc.c
Normal file
@ -0,0 +1,615 @@
|
|||||||
|
// Copyright 2016 Google Inc. All Rights Reserved.
|
||||||
|
//
|
||||||
|
// Use of this source code is governed by a BSD-style license
|
||||||
|
// that can be found in the COPYING file in the root of the source
|
||||||
|
// tree. An additional intellectual property rights grant can be found
|
||||||
|
// in the file PATENTS. All contributing project authors may
|
||||||
|
// be found in the AUTHORS file in the root of the source tree.
|
||||||
|
// -----------------------------------------------------------------------------
|
||||||
|
//
|
||||||
|
// Save image
|
||||||
|
|
||||||
|
#include "./image_enc.h"
|
||||||
|
|
||||||
|
#include <assert.h>
|
||||||
|
#include <string.h>
|
||||||
|
|
||||||
|
#ifdef WEBP_HAVE_PNG
|
||||||
|
#include <png.h>
|
||||||
|
#include <setjmp.h> // note: this must be included *after* png.h
|
||||||
|
#endif
|
||||||
|
|
||||||
|
#ifdef HAVE_WINCODEC_H
|
||||||
|
#ifdef __MINGW32__
|
||||||
|
#define INITGUID // Without this GUIDs are declared extern and fail to link
|
||||||
|
#endif
|
||||||
|
#define CINTERFACE
|
||||||
|
#define COBJMACROS
|
||||||
|
#define _WIN32_IE 0x500 // Workaround bug in shlwapi.h when compiling C++
|
||||||
|
// code with COBJMACROS.
|
||||||
|
#include <ole2.h> // CreateStreamOnHGlobal()
|
||||||
|
#include <shlwapi.h>
|
||||||
|
#include <tchar.h>
|
||||||
|
#include <windows.h>
|
||||||
|
#include <wincodec.h>
|
||||||
|
#endif
|
||||||
|
|
||||||
|
#include "./imageio_util.h"
|
||||||
|
#include "../examples/unicode.h"
|
||||||
|
|
||||||
|
//------------------------------------------------------------------------------
|
||||||
|
// PNG
|
||||||
|
|
||||||
|
#ifdef HAVE_WINCODEC_H
|
||||||
|
|
||||||
|
#define IFS(fn) \
|
||||||
|
do { \
|
||||||
|
if (SUCCEEDED(hr)) { \
|
||||||
|
hr = (fn); \
|
||||||
|
if (FAILED(hr)) fprintf(stderr, #fn " failed %08lx\n", hr); \
|
||||||
|
} \
|
||||||
|
} while (0)
|
||||||
|
|
||||||
|
#ifdef __cplusplus
|
||||||
|
#define MAKE_REFGUID(x) (x)
|
||||||
|
#else
|
||||||
|
#define MAKE_REFGUID(x) &(x)
|
||||||
|
#endif
|
||||||
|
|
||||||
|
static HRESULT CreateOutputStream(const char* out_file_name,
|
||||||
|
int write_to_mem, IStream** stream) {
|
||||||
|
HRESULT hr = S_OK;
|
||||||
|
if (write_to_mem) {
|
||||||
|
// Output to a memory buffer. This is freed when 'stream' is released.
|
||||||
|
IFS(CreateStreamOnHGlobal(NULL, TRUE, stream));
|
||||||
|
} else {
|
||||||
|
IFS(SHCreateStreamOnFile((const LPTSTR)out_file_name,
|
||||||
|
STGM_WRITE | STGM_CREATE, stream));
|
||||||
|
}
|
||||||
|
if (FAILED(hr)) {
|
||||||
|
_ftprintf(stderr, _T("Error opening output file %s (%08lx)\n"),
|
||||||
|
(const LPTSTR)out_file_name, hr);
|
||||||
|
}
|
||||||
|
return hr;
|
||||||
|
}
|
||||||
|
|
||||||
|
static HRESULT WriteUsingWIC(const char* out_file_name, int use_stdout,
|
||||||
|
REFGUID container_guid,
|
||||||
|
uint8_t* rgb, int stride,
|
||||||
|
uint32_t width, uint32_t height, int has_alpha) {
|
||||||
|
HRESULT hr = S_OK;
|
||||||
|
IWICImagingFactory* factory = NULL;
|
||||||
|
IWICBitmapFrameEncode* frame = NULL;
|
||||||
|
IWICBitmapEncoder* encoder = NULL;
|
||||||
|
IStream* stream = NULL;
|
||||||
|
WICPixelFormatGUID pixel_format = has_alpha ? GUID_WICPixelFormat32bppBGRA
|
||||||
|
: GUID_WICPixelFormat24bppBGR;
|
||||||
|
|
||||||
|
if (out_file_name == NULL || rgb == NULL) return E_INVALIDARG;
|
||||||
|
|
||||||
|
IFS(CoInitialize(NULL));
|
||||||
|
IFS(CoCreateInstance(MAKE_REFGUID(CLSID_WICImagingFactory), NULL,
|
||||||
|
CLSCTX_INPROC_SERVER,
|
||||||
|
MAKE_REFGUID(IID_IWICImagingFactory),
|
||||||
|
(LPVOID*)&factory));
|
||||||
|
if (hr == REGDB_E_CLASSNOTREG) {
|
||||||
|
fprintf(stderr,
|
||||||
|
"Couldn't access Windows Imaging Component (are you running "
|
||||||
|
"Windows XP SP3 or newer?). PNG support not available. "
|
||||||
|
"Use -ppm or -pgm for available PPM and PGM formats.\n");
|
||||||
|
}
|
||||||
|
IFS(CreateOutputStream(out_file_name, use_stdout, &stream));
|
||||||
|
IFS(IWICImagingFactory_CreateEncoder(factory, container_guid, NULL,
|
||||||
|
&encoder));
|
||||||
|
IFS(IWICBitmapEncoder_Initialize(encoder, stream,
|
||||||
|
WICBitmapEncoderNoCache));
|
||||||
|
IFS(IWICBitmapEncoder_CreateNewFrame(encoder, &frame, NULL));
|
||||||
|
IFS(IWICBitmapFrameEncode_Initialize(frame, NULL));
|
||||||
|
IFS(IWICBitmapFrameEncode_SetSize(frame, width, height));
|
||||||
|
IFS(IWICBitmapFrameEncode_SetPixelFormat(frame, &pixel_format));
|
||||||
|
IFS(IWICBitmapFrameEncode_WritePixels(frame, height, stride,
|
||||||
|
height * stride, rgb));
|
||||||
|
IFS(IWICBitmapFrameEncode_Commit(frame));
|
||||||
|
IFS(IWICBitmapEncoder_Commit(encoder));
|
||||||
|
|
||||||
|
if (SUCCEEDED(hr) && use_stdout) {
|
||||||
|
HGLOBAL image;
|
||||||
|
IFS(GetHGlobalFromStream(stream, &image));
|
||||||
|
if (SUCCEEDED(hr)) {
|
||||||
|
HANDLE std_output = GetStdHandle(STD_OUTPUT_HANDLE);
|
||||||
|
DWORD mode;
|
||||||
|
const BOOL update_mode = GetConsoleMode(std_output, &mode);
|
||||||
|
const void* const image_mem = GlobalLock(image);
|
||||||
|
DWORD bytes_written = 0;
|
||||||
|
|
||||||
|
// Clear output processing if necessary, then output the image.
|
||||||
|
if (update_mode) SetConsoleMode(std_output, 0);
|
||||||
|
if (!WriteFile(std_output, image_mem, (DWORD)GlobalSize(image),
|
||||||
|
&bytes_written, NULL) ||
|
||||||
|
bytes_written != GlobalSize(image)) {
|
||||||
|
hr = E_FAIL;
|
||||||
|
}
|
||||||
|
if (update_mode) SetConsoleMode(std_output, mode);
|
||||||
|
GlobalUnlock(image);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
if (frame != NULL) IUnknown_Release(frame);
|
||||||
|
if (encoder != NULL) IUnknown_Release(encoder);
|
||||||
|
if (factory != NULL) IUnknown_Release(factory);
|
||||||
|
if (stream != NULL) IUnknown_Release(stream);
|
||||||
|
return hr;
|
||||||
|
}
|
||||||
|
|
||||||
|
int WebPWritePNG(const char* out_file_name, int use_stdout,
|
||||||
|
const WebPDecBuffer* const buffer) {
|
||||||
|
const uint32_t width = buffer->width;
|
||||||
|
const uint32_t height = buffer->height;
|
||||||
|
uint8_t* const rgb = buffer->u.RGBA.rgba;
|
||||||
|
const int stride = buffer->u.RGBA.stride;
|
||||||
|
const int has_alpha = WebPIsAlphaMode(buffer->colorspace);
|
||||||
|
|
||||||
|
return SUCCEEDED(WriteUsingWIC(out_file_name, use_stdout,
|
||||||
|
MAKE_REFGUID(GUID_ContainerFormatPng),
|
||||||
|
rgb, stride, width, height, has_alpha));
|
||||||
|
}
|
||||||
|
|
||||||
|
#elif defined(WEBP_HAVE_PNG) // !HAVE_WINCODEC_H
|
||||||
|
static void PNGAPI PNGErrorFunction(png_structp png, png_const_charp unused) {
|
||||||
|
(void)unused; // remove variable-unused warning
|
||||||
|
longjmp(png_jmpbuf(png), 1);
|
||||||
|
}
|
||||||
|
|
||||||
|
int WebPWritePNG(FILE* out_file, const WebPDecBuffer* const buffer) {
|
||||||
|
volatile png_structp png;
|
||||||
|
volatile png_infop info;
|
||||||
|
|
||||||
|
if (out_file == NULL || buffer == NULL) return 0;
|
||||||
|
|
||||||
|
png = png_create_write_struct(PNG_LIBPNG_VER_STRING,
|
||||||
|
NULL, PNGErrorFunction, NULL);
|
||||||
|
if (png == NULL) {
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
info = png_create_info_struct(png);
|
||||||
|
if (info == NULL) {
|
||||||
|
png_destroy_write_struct((png_structpp)&png, NULL);
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
if (setjmp(png_jmpbuf(png))) {
|
||||||
|
png_destroy_write_struct((png_structpp)&png, (png_infopp)&info);
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
png_init_io(png, out_file);
|
||||||
|
{
|
||||||
|
const uint32_t width = buffer->width;
|
||||||
|
const uint32_t height = buffer->height;
|
||||||
|
png_bytep row = buffer->u.RGBA.rgba;
|
||||||
|
const int stride = buffer->u.RGBA.stride;
|
||||||
|
const int has_alpha = WebPIsAlphaMode(buffer->colorspace);
|
||||||
|
uint32_t y;
|
||||||
|
|
||||||
|
png_set_IHDR(png, info, width, height, 8,
|
||||||
|
has_alpha ? PNG_COLOR_TYPE_RGBA : PNG_COLOR_TYPE_RGB,
|
||||||
|
PNG_INTERLACE_NONE, PNG_COMPRESSION_TYPE_DEFAULT,
|
||||||
|
PNG_FILTER_TYPE_DEFAULT);
|
||||||
|
png_write_info(png, info);
|
||||||
|
for (y = 0; y < height; ++y) {
|
||||||
|
png_write_rows(png, &row, 1);
|
||||||
|
row += stride;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
png_write_end(png, info);
|
||||||
|
png_destroy_write_struct((png_structpp)&png, (png_infopp)&info);
|
||||||
|
return 1;
|
||||||
|
}
|
||||||
|
#else // !HAVE_WINCODEC_H && !WEBP_HAVE_PNG
|
||||||
|
int WebPWritePNG(FILE* fout, const WebPDecBuffer* const buffer) {
|
||||||
|
if (fout == NULL || buffer == NULL) return 0;
|
||||||
|
|
||||||
|
fprintf(stderr, "PNG support not compiled. Please install the libpng "
|
||||||
|
"development package before building.\n");
|
||||||
|
fprintf(stderr, "You can run with -ppm flag to decode in PPM format.\n");
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
#endif
|
||||||
|
|
||||||
|
//------------------------------------------------------------------------------
|
||||||
|
// PPM / PAM
|
||||||
|
|
||||||
|
static int WritePPMPAM(FILE* fout, const WebPDecBuffer* const buffer,
|
||||||
|
int alpha) {
|
||||||
|
if (fout == NULL || buffer == NULL) {
|
||||||
|
return 0;
|
||||||
|
} else {
|
||||||
|
const uint32_t width = buffer->width;
|
||||||
|
const uint32_t height = buffer->height;
|
||||||
|
const uint8_t* row = buffer->u.RGBA.rgba;
|
||||||
|
const int stride = buffer->u.RGBA.stride;
|
||||||
|
const size_t bytes_per_px = alpha ? 4 : 3;
|
||||||
|
uint32_t y;
|
||||||
|
|
||||||
|
if (row == NULL) return 0;
|
||||||
|
|
||||||
|
if (alpha) {
|
||||||
|
fprintf(fout, "P7\nWIDTH %u\nHEIGHT %u\nDEPTH 4\nMAXVAL 255\n"
|
||||||
|
"TUPLTYPE RGB_ALPHA\nENDHDR\n", width, height);
|
||||||
|
} else {
|
||||||
|
fprintf(fout, "P6\n%u %u\n255\n", width, height);
|
||||||
|
}
|
||||||
|
for (y = 0; y < height; ++y) {
|
||||||
|
if (fwrite(row, width, bytes_per_px, fout) != bytes_per_px) {
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
row += stride;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
return 1;
|
||||||
|
}
|
||||||
|
|
||||||
|
int WebPWritePPM(FILE* fout, const WebPDecBuffer* const buffer) {
|
||||||
|
return WritePPMPAM(fout, buffer, 0);
|
||||||
|
}
|
||||||
|
|
||||||
|
int WebPWritePAM(FILE* fout, const WebPDecBuffer* const buffer) {
|
||||||
|
return WritePPMPAM(fout, buffer, 1);
|
||||||
|
}
|
||||||
|
|
||||||
|
//------------------------------------------------------------------------------
|
||||||
|
// Raw PGM
|
||||||
|
|
||||||
|
// Save 16b mode (RGBA4444, RGB565, ...) for debugging purpose.
|
||||||
|
int WebPWrite16bAsPGM(FILE* fout, const WebPDecBuffer* const buffer) {
|
||||||
|
const uint32_t width = buffer->width;
|
||||||
|
const uint32_t height = buffer->height;
|
||||||
|
const uint8_t* rgba = buffer->u.RGBA.rgba;
|
||||||
|
const int stride = buffer->u.RGBA.stride;
|
||||||
|
const uint32_t bytes_per_px = 2;
|
||||||
|
uint32_t y;
|
||||||
|
|
||||||
|
if (fout == NULL || buffer == NULL || rgba == NULL) return 0;
|
||||||
|
|
||||||
|
fprintf(fout, "P5\n%u %u\n255\n", width * bytes_per_px, height);
|
||||||
|
for (y = 0; y < height; ++y) {
|
||||||
|
if (fwrite(rgba, width, bytes_per_px, fout) != bytes_per_px) {
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
rgba += stride;
|
||||||
|
}
|
||||||
|
return 1;
|
||||||
|
}
|
||||||
|
|
||||||
|
//------------------------------------------------------------------------------
|
||||||
|
// BMP (see https://en.wikipedia.org/wiki/BMP_file_format#Pixel_storage)
|
||||||
|
|
||||||
|
static void PutLE16(uint8_t* const dst, uint32_t value) {
|
||||||
|
dst[0] = (value >> 0) & 0xff;
|
||||||
|
dst[1] = (value >> 8) & 0xff;
|
||||||
|
}
|
||||||
|
|
||||||
|
static void PutLE32(uint8_t* const dst, uint32_t value) {
|
||||||
|
PutLE16(dst + 0, (value >> 0) & 0xffff);
|
||||||
|
PutLE16(dst + 2, (value >> 16) & 0xffff);
|
||||||
|
}
|
||||||
|
|
||||||
|
#define BMP_HEADER_SIZE 54
|
||||||
|
#define BMP_HEADER_ALPHA_EXTRA_SIZE 16 // for alpha info
|
||||||
|
int WebPWriteBMP(FILE* fout, const WebPDecBuffer* const buffer) {
|
||||||
|
const int has_alpha = WebPIsAlphaMode(buffer->colorspace);
|
||||||
|
const int header_size =
|
||||||
|
BMP_HEADER_SIZE + (has_alpha ? BMP_HEADER_ALPHA_EXTRA_SIZE : 0);
|
||||||
|
const uint32_t width = buffer->width;
|
||||||
|
const uint32_t height = buffer->height;
|
||||||
|
const uint8_t* rgba = buffer->u.RGBA.rgba;
|
||||||
|
const int stride = buffer->u.RGBA.stride;
|
||||||
|
const uint32_t bytes_per_px = has_alpha ? 4 : 3;
|
||||||
|
uint32_t y;
|
||||||
|
const uint32_t line_size = bytes_per_px * width;
|
||||||
|
const uint32_t bmp_stride = (line_size + 3) & ~3; // pad to 4
|
||||||
|
const uint32_t image_size = bmp_stride * height;
|
||||||
|
const uint32_t total_size = image_size + header_size;
|
||||||
|
uint8_t bmp_header[BMP_HEADER_SIZE + BMP_HEADER_ALPHA_EXTRA_SIZE] = { 0 };
|
||||||
|
|
||||||
|
if (fout == NULL || buffer == NULL || rgba == NULL) return 0;
|
||||||
|
|
||||||
|
// bitmap file header
|
||||||
|
PutLE16(bmp_header + 0, 0x4d42); // signature 'BM'
|
||||||
|
PutLE32(bmp_header + 2, total_size); // size including header
|
||||||
|
PutLE32(bmp_header + 6, 0); // reserved
|
||||||
|
PutLE32(bmp_header + 10, header_size); // offset to pixel array
|
||||||
|
// bitmap info header
|
||||||
|
PutLE32(bmp_header + 14, header_size - 14); // DIB header size
|
||||||
|
PutLE32(bmp_header + 18, width); // dimensions
|
||||||
|
PutLE32(bmp_header + 22, height); // no vertical flip
|
||||||
|
PutLE16(bmp_header + 26, 1); // number of planes
|
||||||
|
PutLE16(bmp_header + 28, bytes_per_px * 8); // bits per pixel
|
||||||
|
PutLE32(bmp_header + 30, has_alpha ? 3 : 0); // BI_BITFIELDS or BI_RGB
|
||||||
|
PutLE32(bmp_header + 34, image_size);
|
||||||
|
PutLE32(bmp_header + 38, 2400); // x pixels/meter
|
||||||
|
PutLE32(bmp_header + 42, 2400); // y pixels/meter
|
||||||
|
PutLE32(bmp_header + 46, 0); // number of palette colors
|
||||||
|
PutLE32(bmp_header + 50, 0); // important color count
|
||||||
|
if (has_alpha) { // BITMAPV3INFOHEADER complement
|
||||||
|
PutLE32(bmp_header + 54, 0x00ff0000); // red mask
|
||||||
|
PutLE32(bmp_header + 58, 0x0000ff00); // green mask
|
||||||
|
PutLE32(bmp_header + 62, 0x000000ff); // blue mask
|
||||||
|
PutLE32(bmp_header + 66, 0xff000000); // alpha mask
|
||||||
|
}
|
||||||
|
|
||||||
|
// TODO(skal): color profile
|
||||||
|
|
||||||
|
// write header
|
||||||
|
if (fwrite(bmp_header, header_size, 1, fout) != 1) {
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
// write pixel array, bottom to top
|
||||||
|
for (y = 0; y < height; ++y) {
|
||||||
|
const uint8_t* const src = &rgba[(uint64_t)(height - 1 - y) * stride];
|
||||||
|
if (fwrite(src, line_size, 1, fout) != 1) {
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
// write padding zeroes
|
||||||
|
if (bmp_stride != line_size) {
|
||||||
|
const uint8_t zeroes[3] = { 0 };
|
||||||
|
if (fwrite(zeroes, bmp_stride - line_size, 1, fout) != 1) {
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
return 1;
|
||||||
|
}
|
||||||
|
#undef BMP_HEADER_SIZE
|
||||||
|
#undef BMP_HEADER_ALPHA_EXTRA_SIZE
|
||||||
|
|
||||||
|
//------------------------------------------------------------------------------
|
||||||
|
// TIFF
|
||||||
|
|
||||||
|
#define NUM_IFD_ENTRIES 15
|
||||||
|
#define EXTRA_DATA_SIZE 16
|
||||||
|
// 10b for signature/header + n * 12b entries + 4b for IFD terminator:
|
||||||
|
#define EXTRA_DATA_OFFSET (10 + 12 * NUM_IFD_ENTRIES + 4)
|
||||||
|
#define TIFF_HEADER_SIZE (EXTRA_DATA_OFFSET + EXTRA_DATA_SIZE)
|
||||||
|
|
||||||
|
int WebPWriteTIFF(FILE* fout, const WebPDecBuffer* const buffer) {
|
||||||
|
const int has_alpha = WebPIsAlphaMode(buffer->colorspace);
|
||||||
|
const uint32_t width = buffer->width;
|
||||||
|
const uint32_t height = buffer->height;
|
||||||
|
const uint8_t* rgba = buffer->u.RGBA.rgba;
|
||||||
|
const int stride = buffer->u.RGBA.stride;
|
||||||
|
const uint8_t bytes_per_px = has_alpha ? 4 : 3;
|
||||||
|
const uint8_t assoc_alpha =
|
||||||
|
WebPIsPremultipliedMode(buffer->colorspace) ? 1 : 2;
|
||||||
|
// For non-alpha case, we omit tag 0x152 (ExtraSamples).
|
||||||
|
const uint8_t num_ifd_entries = has_alpha ? NUM_IFD_ENTRIES
|
||||||
|
: NUM_IFD_ENTRIES - 1;
|
||||||
|
uint8_t tiff_header[TIFF_HEADER_SIZE] = {
|
||||||
|
0x49, 0x49, 0x2a, 0x00, // little endian signature
|
||||||
|
8, 0, 0, 0, // offset to the unique IFD that follows
|
||||||
|
// IFD (offset = 8). Entries must be written in increasing tag order.
|
||||||
|
num_ifd_entries, 0, // Number of entries in the IFD (12 bytes each).
|
||||||
|
0x00, 0x01, 3, 0, 1, 0, 0, 0, 0, 0, 0, 0, // 10: Width (TBD)
|
||||||
|
0x01, 0x01, 3, 0, 1, 0, 0, 0, 0, 0, 0, 0, // 22: Height (TBD)
|
||||||
|
0x02, 0x01, 3, 0, bytes_per_px, 0, 0, 0, // 34: BitsPerSample: 8888
|
||||||
|
EXTRA_DATA_OFFSET + 0, 0, 0, 0,
|
||||||
|
0x03, 0x01, 3, 0, 1, 0, 0, 0, 1, 0, 0, 0, // 46: Compression: none
|
||||||
|
0x06, 0x01, 3, 0, 1, 0, 0, 0, 2, 0, 0, 0, // 58: Photometric: RGB
|
||||||
|
0x11, 0x01, 4, 0, 1, 0, 0, 0, // 70: Strips offset:
|
||||||
|
TIFF_HEADER_SIZE, 0, 0, 0, // data follows header
|
||||||
|
0x12, 0x01, 3, 0, 1, 0, 0, 0, 1, 0, 0, 0, // 82: Orientation: topleft
|
||||||
|
0x15, 0x01, 3, 0, 1, 0, 0, 0, // 94: SamplesPerPixels
|
||||||
|
bytes_per_px, 0, 0, 0,
|
||||||
|
0x16, 0x01, 3, 0, 1, 0, 0, 0, 0, 0, 0, 0, // 106: Rows per strip (TBD)
|
||||||
|
0x17, 0x01, 4, 0, 1, 0, 0, 0, 0, 0, 0, 0, // 118: StripByteCount (TBD)
|
||||||
|
0x1a, 0x01, 5, 0, 1, 0, 0, 0, // 130: X-resolution
|
||||||
|
EXTRA_DATA_OFFSET + 8, 0, 0, 0,
|
||||||
|
0x1b, 0x01, 5, 0, 1, 0, 0, 0, // 142: Y-resolution
|
||||||
|
EXTRA_DATA_OFFSET + 8, 0, 0, 0,
|
||||||
|
0x1c, 0x01, 3, 0, 1, 0, 0, 0, 1, 0, 0, 0, // 154: PlanarConfiguration
|
||||||
|
0x28, 0x01, 3, 0, 1, 0, 0, 0, 2, 0, 0, 0, // 166: ResolutionUnit (inch)
|
||||||
|
0x52, 0x01, 3, 0, 1, 0, 0, 0,
|
||||||
|
assoc_alpha, 0, 0, 0, // 178: ExtraSamples: rgbA/RGBA
|
||||||
|
0, 0, 0, 0, // 190: IFD terminator
|
||||||
|
// EXTRA_DATA_OFFSET:
|
||||||
|
8, 0, 8, 0, 8, 0, 8, 0, // BitsPerSample
|
||||||
|
72, 0, 0, 0, 1, 0, 0, 0 // 72 pixels/inch, for X/Y-resolution
|
||||||
|
};
|
||||||
|
uint32_t y;
|
||||||
|
|
||||||
|
if (fout == NULL || buffer == NULL || rgba == NULL) return 0;
|
||||||
|
|
||||||
|
// Fill placeholders in IFD:
|
||||||
|
PutLE32(tiff_header + 10 + 8, width);
|
||||||
|
PutLE32(tiff_header + 22 + 8, height);
|
||||||
|
PutLE32(tiff_header + 106 + 8, height);
|
||||||
|
PutLE32(tiff_header + 118 + 8, width * bytes_per_px * height);
|
||||||
|
if (!has_alpha) PutLE32(tiff_header + 178, 0); // IFD terminator
|
||||||
|
|
||||||
|
// write header
|
||||||
|
if (fwrite(tiff_header, sizeof(tiff_header), 1, fout) != 1) {
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
// write pixel values
|
||||||
|
for (y = 0; y < height; ++y) {
|
||||||
|
if (fwrite(rgba, bytes_per_px, width, fout) != width) {
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
rgba += stride;
|
||||||
|
}
|
||||||
|
|
||||||
|
return 1;
|
||||||
|
}
|
||||||
|
|
||||||
|
#undef TIFF_HEADER_SIZE
|
||||||
|
#undef EXTRA_DATA_OFFSET
|
||||||
|
#undef EXTRA_DATA_SIZE
|
||||||
|
#undef NUM_IFD_ENTRIES
|
||||||
|
|
||||||
|
//------------------------------------------------------------------------------
|
||||||
|
// Raw Alpha
|
||||||
|
|
||||||
|
int WebPWriteAlphaPlane(FILE* fout, const WebPDecBuffer* const buffer) {
|
||||||
|
if (fout == NULL || buffer == NULL) {
|
||||||
|
return 0;
|
||||||
|
} else {
|
||||||
|
const uint32_t width = buffer->width;
|
||||||
|
const uint32_t height = buffer->height;
|
||||||
|
const uint8_t* a = buffer->u.YUVA.a;
|
||||||
|
const int a_stride = buffer->u.YUVA.a_stride;
|
||||||
|
uint32_t y;
|
||||||
|
|
||||||
|
if (a == NULL) return 0;
|
||||||
|
|
||||||
|
fprintf(fout, "P5\n%u %u\n255\n", width, height);
|
||||||
|
for (y = 0; y < height; ++y) {
|
||||||
|
if (fwrite(a, width, 1, fout) != 1) return 0;
|
||||||
|
a += a_stride;
|
||||||
|
}
|
||||||
|
return 1;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
//------------------------------------------------------------------------------
|
||||||
|
// PGM with IMC4 layout
|
||||||
|
|
||||||
|
int WebPWritePGM(FILE* fout, const WebPDecBuffer* const buffer) {
|
||||||
|
if (fout == NULL || buffer == NULL) {
|
||||||
|
return 0;
|
||||||
|
} else {
|
||||||
|
const int width = buffer->width;
|
||||||
|
const int height = buffer->height;
|
||||||
|
const WebPYUVABuffer* const yuv = &buffer->u.YUVA;
|
||||||
|
const uint8_t* src_y = yuv->y;
|
||||||
|
const uint8_t* src_u = yuv->u;
|
||||||
|
const uint8_t* src_v = yuv->v;
|
||||||
|
const uint8_t* src_a = yuv->a;
|
||||||
|
const int uv_width = (width + 1) / 2;
|
||||||
|
const int uv_height = (height + 1) / 2;
|
||||||
|
const int a_height = (src_a != NULL) ? height : 0;
|
||||||
|
int ok = 1;
|
||||||
|
int y;
|
||||||
|
|
||||||
|
if (src_y == NULL || src_u == NULL || src_v == NULL) return 0;
|
||||||
|
|
||||||
|
fprintf(fout, "P5\n%d %d\n255\n",
|
||||||
|
(width + 1) & ~1, height + uv_height + a_height);
|
||||||
|
for (y = 0; ok && y < height; ++y) {
|
||||||
|
ok &= (fwrite(src_y, width, 1, fout) == 1);
|
||||||
|
if (width & 1) fputc(0, fout); // padding byte
|
||||||
|
src_y += yuv->y_stride;
|
||||||
|
}
|
||||||
|
for (y = 0; ok && y < uv_height; ++y) {
|
||||||
|
ok &= (fwrite(src_u, uv_width, 1, fout) == 1);
|
||||||
|
ok &= (fwrite(src_v, uv_width, 1, fout) == 1);
|
||||||
|
src_u += yuv->u_stride;
|
||||||
|
src_v += yuv->v_stride;
|
||||||
|
}
|
||||||
|
for (y = 0; ok && y < a_height; ++y) {
|
||||||
|
ok &= (fwrite(src_a, width, 1, fout) == 1);
|
||||||
|
if (width & 1) fputc(0, fout); // padding byte
|
||||||
|
src_a += yuv->a_stride;
|
||||||
|
}
|
||||||
|
return ok;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
//------------------------------------------------------------------------------
|
||||||
|
// Raw YUV(A) planes
|
||||||
|
|
||||||
|
int WebPWriteYUV(FILE* fout, const WebPDecBuffer* const buffer) {
|
||||||
|
if (fout == NULL || buffer == NULL) {
|
||||||
|
return 0;
|
||||||
|
} else {
|
||||||
|
const int width = buffer->width;
|
||||||
|
const int height = buffer->height;
|
||||||
|
const WebPYUVABuffer* const yuv = &buffer->u.YUVA;
|
||||||
|
const uint8_t* src_y = yuv->y;
|
||||||
|
const uint8_t* src_u = yuv->u;
|
||||||
|
const uint8_t* src_v = yuv->v;
|
||||||
|
const uint8_t* src_a = yuv->a;
|
||||||
|
const int uv_width = (width + 1) / 2;
|
||||||
|
const int uv_height = (height + 1) / 2;
|
||||||
|
const int a_height = (src_a != NULL) ? height : 0;
|
||||||
|
int ok = 1;
|
||||||
|
int y;
|
||||||
|
|
||||||
|
if (src_y == NULL || src_u == NULL || src_v == NULL) return 0;
|
||||||
|
|
||||||
|
for (y = 0; ok && y < height; ++y) {
|
||||||
|
ok &= (fwrite(src_y, width, 1, fout) == 1);
|
||||||
|
src_y += yuv->y_stride;
|
||||||
|
}
|
||||||
|
for (y = 0; ok && y < uv_height; ++y) {
|
||||||
|
ok &= (fwrite(src_u, uv_width, 1, fout) == 1);
|
||||||
|
src_u += yuv->u_stride;
|
||||||
|
}
|
||||||
|
for (y = 0; ok && y < uv_height; ++y) {
|
||||||
|
ok &= (fwrite(src_v, uv_width, 1, fout) == 1);
|
||||||
|
src_v += yuv->v_stride;
|
||||||
|
}
|
||||||
|
for (y = 0; ok && y < a_height; ++y) {
|
||||||
|
ok &= (fwrite(src_a, width, 1, fout) == 1);
|
||||||
|
src_a += yuv->a_stride;
|
||||||
|
}
|
||||||
|
return ok;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
//------------------------------------------------------------------------------
|
||||||
|
// Generic top-level call
|
||||||
|
|
||||||
|
int WebPSaveImage(const WebPDecBuffer* const buffer,
|
||||||
|
WebPOutputFileFormat format,
|
||||||
|
const char* const out_file_name) {
|
||||||
|
FILE* fout = NULL;
|
||||||
|
int needs_open_file = 1;
|
||||||
|
const int use_stdout =
|
||||||
|
(out_file_name != NULL) && !WSTRCMP(out_file_name, "-");
|
||||||
|
int ok = 1;
|
||||||
|
|
||||||
|
if (buffer == NULL || out_file_name == NULL) return 0;
|
||||||
|
|
||||||
|
#ifdef HAVE_WINCODEC_H
|
||||||
|
needs_open_file = (format != PNG);
|
||||||
|
#endif
|
||||||
|
|
||||||
|
if (needs_open_file) {
|
||||||
|
fout = use_stdout ? ImgIoUtilSetBinaryMode(stdout)
|
||||||
|
: WFOPEN(out_file_name, "wb");
|
||||||
|
if (fout == NULL) {
|
||||||
|
WFPRINTF(stderr, "Error opening output file %s\n",
|
||||||
|
(const W_CHAR*)out_file_name);
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
if (format == PNG ||
|
||||||
|
format == RGBA || format == BGRA || format == ARGB ||
|
||||||
|
format == rgbA || format == bgrA || format == Argb) {
|
||||||
|
#ifdef HAVE_WINCODEC_H
|
||||||
|
ok &= WebPWritePNG(out_file_name, use_stdout, buffer);
|
||||||
|
#else
|
||||||
|
ok &= WebPWritePNG(fout, buffer);
|
||||||
|
#endif
|
||||||
|
} else if (format == PAM) {
|
||||||
|
ok &= WebPWritePAM(fout, buffer);
|
||||||
|
} else if (format == PPM || format == RGB || format == BGR) {
|
||||||
|
ok &= WebPWritePPM(fout, buffer);
|
||||||
|
} else if (format == RGBA_4444 || format == RGB_565 || format == rgbA_4444) {
|
||||||
|
ok &= WebPWrite16bAsPGM(fout, buffer);
|
||||||
|
} else if (format == BMP) {
|
||||||
|
ok &= WebPWriteBMP(fout, buffer);
|
||||||
|
} else if (format == TIFF) {
|
||||||
|
ok &= WebPWriteTIFF(fout, buffer);
|
||||||
|
} else if (format == RAW_YUV) {
|
||||||
|
ok &= WebPWriteYUV(fout, buffer);
|
||||||
|
} else if (format == PGM || format == YUV || format == YUVA) {
|
||||||
|
ok &= WebPWritePGM(fout, buffer);
|
||||||
|
} else if (format == ALPHA_PLANE_ONLY) {
|
||||||
|
ok &= WebPWriteAlphaPlane(fout, buffer);
|
||||||
|
}
|
||||||
|
if (fout != NULL && fout != stdout) {
|
||||||
|
fclose(fout);
|
||||||
|
}
|
||||||
|
return ok;
|
||||||
|
}
|
96
imageio/image_enc.h
Normal file
96
imageio/image_enc.h
Normal file
@ -0,0 +1,96 @@
|
|||||||
|
// Copyright 2016 Google Inc. All Rights Reserved.
|
||||||
|
//
|
||||||
|
// Use of this source code is governed by a BSD-style license
|
||||||
|
// that can be found in the COPYING file in the root of the source
|
||||||
|
// tree. An additional intellectual property rights grant can be found
|
||||||
|
// in the file PATENTS. All contributing project authors may
|
||||||
|
// be found in the AUTHORS file in the root of the source tree.
|
||||||
|
// -----------------------------------------------------------------------------
|
||||||
|
//
|
||||||
|
// All-in-one library to save PNG/JPEG/WebP/TIFF/WIC images.
|
||||||
|
//
|
||||||
|
// Author: Skal (pascal.massimino@gmail.com)
|
||||||
|
|
||||||
|
#ifndef WEBP_IMAGEIO_IMAGE_ENC_H_
|
||||||
|
#define WEBP_IMAGEIO_IMAGE_ENC_H_
|
||||||
|
|
||||||
|
#include <stdio.h>
|
||||||
|
|
||||||
|
#ifdef HAVE_CONFIG_H
|
||||||
|
#include "webp/config.h"
|
||||||
|
#endif
|
||||||
|
|
||||||
|
#include "webp/types.h"
|
||||||
|
#include "webp/decode.h"
|
||||||
|
|
||||||
|
#ifdef __cplusplus
|
||||||
|
extern "C" {
|
||||||
|
#endif
|
||||||
|
|
||||||
|
// Output types
|
||||||
|
typedef enum {
|
||||||
|
PNG = 0,
|
||||||
|
PAM,
|
||||||
|
PPM,
|
||||||
|
PGM,
|
||||||
|
BMP,
|
||||||
|
TIFF,
|
||||||
|
RAW_YUV,
|
||||||
|
ALPHA_PLANE_ONLY, // this is for experimenting only
|
||||||
|
// forced colorspace output (for testing, mostly)
|
||||||
|
RGB, RGBA, BGR, BGRA, ARGB,
|
||||||
|
RGBA_4444, RGB_565,
|
||||||
|
rgbA, bgrA, Argb, rgbA_4444,
|
||||||
|
YUV, YUVA
|
||||||
|
} WebPOutputFileFormat;
|
||||||
|
|
||||||
|
// General all-purpose call.
|
||||||
|
// Most formats expect a 'buffer' containing RGBA-like samples, except
|
||||||
|
// RAW_YUV, YUV and YUVA formats.
|
||||||
|
// If 'out_file_name' is "-", data is saved to stdout.
|
||||||
|
// Returns false if an error occurred, true otherwise.
|
||||||
|
int WebPSaveImage(const WebPDecBuffer* const buffer,
|
||||||
|
WebPOutputFileFormat format, const char* const out_file_name);
|
||||||
|
|
||||||
|
// Save to PNG.
|
||||||
|
#ifdef HAVE_WINCODEC_H
|
||||||
|
int WebPWritePNG(const char* out_file_name, int use_stdout,
|
||||||
|
const struct WebPDecBuffer* const buffer);
|
||||||
|
#else
|
||||||
|
int WebPWritePNG(FILE* out_file, const WebPDecBuffer* const buffer);
|
||||||
|
#endif
|
||||||
|
|
||||||
|
// Save to PPM format (RGB, no alpha)
|
||||||
|
int WebPWritePPM(FILE* fout, const struct WebPDecBuffer* const buffer);
|
||||||
|
|
||||||
|
// Save to PAM format (= PPM + alpha)
|
||||||
|
int WebPWritePAM(FILE* fout, const struct WebPDecBuffer* const buffer);
|
||||||
|
|
||||||
|
// Save 16b mode (RGBA4444, RGB565, ...) for debugging purposes.
|
||||||
|
int WebPWrite16bAsPGM(FILE* fout, const struct WebPDecBuffer* const buffer);
|
||||||
|
|
||||||
|
// Save as BMP
|
||||||
|
int WebPWriteBMP(FILE* fout, const struct WebPDecBuffer* const buffer);
|
||||||
|
|
||||||
|
// Save as TIFF
|
||||||
|
int WebPWriteTIFF(FILE* fout, const struct WebPDecBuffer* const buffer);
|
||||||
|
|
||||||
|
// Save the ALPHA plane (only) as a PGM
|
||||||
|
int WebPWriteAlphaPlane(FILE* fout, const struct WebPDecBuffer* const buffer);
|
||||||
|
|
||||||
|
// Save as YUV samples as PGM format (using IMC4 layout).
|
||||||
|
// See: https://www.fourcc.org/yuv.php#IMC4.
|
||||||
|
// (very convenient format for viewing the samples, esp. for odd dimensions).
|
||||||
|
int WebPWritePGM(FILE* fout, const struct WebPDecBuffer* const buffer);
|
||||||
|
|
||||||
|
// Save YUV(A) planes sequentially (raw dump)
|
||||||
|
int WebPWriteYUV(FILE* fout, const struct WebPDecBuffer* const buffer);
|
||||||
|
|
||||||
|
// Save 16b mode (RGBA4444, RGB565, ...) as PGM format, for debugging purposes.
|
||||||
|
int WebPWrite16bAsPGM(FILE* fout, const struct WebPDecBuffer* const buffer);
|
||||||
|
|
||||||
|
#ifdef __cplusplus
|
||||||
|
} // extern "C"
|
||||||
|
#endif
|
||||||
|
|
||||||
|
#endif // WEBP_IMAGEIO_IMAGE_ENC_H_
|
162
imageio/imageio_util.c
Normal file
162
imageio/imageio_util.c
Normal file
@ -0,0 +1,162 @@
|
|||||||
|
// Copyright 2016 Google Inc. All Rights Reserved.
|
||||||
|
//
|
||||||
|
// Use of this source code is governed by a BSD-style license
|
||||||
|
// that can be found in the COPYING file in the root of the source
|
||||||
|
// tree. An additional intellectual property rights grant can be found
|
||||||
|
// in the file PATENTS. All contributing project authors may
|
||||||
|
// be found in the AUTHORS file in the root of the source tree.
|
||||||
|
// -----------------------------------------------------------------------------
|
||||||
|
//
|
||||||
|
// Utility functions used by the image decoders.
|
||||||
|
//
|
||||||
|
|
||||||
|
#include "./imageio_util.h"
|
||||||
|
|
||||||
|
#if defined(_WIN32)
|
||||||
|
#include <fcntl.h> // for _O_BINARY
|
||||||
|
#include <io.h> // for _setmode()
|
||||||
|
#endif
|
||||||
|
#include <stdlib.h>
|
||||||
|
#include <string.h>
|
||||||
|
#include "../examples/unicode.h"
|
||||||
|
|
||||||
|
// -----------------------------------------------------------------------------
|
||||||
|
// File I/O
|
||||||
|
|
||||||
|
FILE* ImgIoUtilSetBinaryMode(FILE* file) {
|
||||||
|
#if defined(_WIN32)
|
||||||
|
if (_setmode(_fileno(file), _O_BINARY) == -1) {
|
||||||
|
fprintf(stderr, "Failed to reopen file in O_BINARY mode.\n");
|
||||||
|
return NULL;
|
||||||
|
}
|
||||||
|
#endif
|
||||||
|
return file;
|
||||||
|
}
|
||||||
|
|
||||||
|
int ImgIoUtilReadFromStdin(const uint8_t** data, size_t* data_size) {
|
||||||
|
static const size_t kBlockSize = 16384; // default initial size
|
||||||
|
size_t max_size = 0;
|
||||||
|
size_t size = 0;
|
||||||
|
uint8_t* input = NULL;
|
||||||
|
|
||||||
|
if (data == NULL || data_size == NULL) return 0;
|
||||||
|
*data = NULL;
|
||||||
|
*data_size = 0;
|
||||||
|
|
||||||
|
if (!ImgIoUtilSetBinaryMode(stdin)) return 0;
|
||||||
|
|
||||||
|
while (!feof(stdin)) {
|
||||||
|
// We double the buffer size each time and read as much as possible.
|
||||||
|
const size_t extra_size = (max_size == 0) ? kBlockSize : max_size;
|
||||||
|
// we allocate one extra byte for the \0 terminator
|
||||||
|
void* const new_data = realloc(input, max_size + extra_size + 1);
|
||||||
|
if (new_data == NULL) goto Error;
|
||||||
|
input = (uint8_t*)new_data;
|
||||||
|
max_size += extra_size;
|
||||||
|
size += fread(input + size, 1, extra_size, stdin);
|
||||||
|
if (size < max_size) break;
|
||||||
|
}
|
||||||
|
if (ferror(stdin)) goto Error;
|
||||||
|
if (input != NULL) input[size] = '\0'; // convenient 0-terminator
|
||||||
|
*data = input;
|
||||||
|
*data_size = size;
|
||||||
|
return 1;
|
||||||
|
|
||||||
|
Error:
|
||||||
|
free(input);
|
||||||
|
fprintf(stderr, "Could not read from stdin\n");
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
int ImgIoUtilReadFile(const char* const file_name,
|
||||||
|
const uint8_t** data, size_t* data_size) {
|
||||||
|
int ok;
|
||||||
|
uint8_t* file_data;
|
||||||
|
size_t file_size;
|
||||||
|
FILE* in;
|
||||||
|
const int from_stdin = (file_name == NULL) || !WSTRCMP(file_name, "-");
|
||||||
|
|
||||||
|
if (from_stdin) return ImgIoUtilReadFromStdin(data, data_size);
|
||||||
|
|
||||||
|
if (data == NULL || data_size == NULL) return 0;
|
||||||
|
*data = NULL;
|
||||||
|
*data_size = 0;
|
||||||
|
|
||||||
|
in = WFOPEN(file_name, "rb");
|
||||||
|
if (in == NULL) {
|
||||||
|
WFPRINTF(stderr, "cannot open input file '%s'\n", (const W_CHAR*)file_name);
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
fseek(in, 0, SEEK_END);
|
||||||
|
file_size = ftell(in);
|
||||||
|
fseek(in, 0, SEEK_SET);
|
||||||
|
// we allocate one extra byte for the \0 terminator
|
||||||
|
file_data = (uint8_t*)WebPMalloc(file_size + 1);
|
||||||
|
if (file_data == NULL) {
|
||||||
|
fclose(in);
|
||||||
|
WFPRINTF(stderr, "memory allocation failure when reading file %s\n",
|
||||||
|
(const W_CHAR*)file_name);
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
ok = (fread(file_data, file_size, 1, in) == 1);
|
||||||
|
fclose(in);
|
||||||
|
|
||||||
|
if (!ok) {
|
||||||
|
WFPRINTF(stderr, "Could not read %d bytes of data from file %s\n",
|
||||||
|
(int)file_size, (const W_CHAR*)file_name);
|
||||||
|
WebPFree(file_data);
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
file_data[file_size] = '\0'; // convenient 0-terminator
|
||||||
|
*data = file_data;
|
||||||
|
*data_size = file_size;
|
||||||
|
return 1;
|
||||||
|
}
|
||||||
|
|
||||||
|
// -----------------------------------------------------------------------------
|
||||||
|
|
||||||
|
int ImgIoUtilWriteFile(const char* const file_name,
|
||||||
|
const uint8_t* data, size_t data_size) {
|
||||||
|
int ok;
|
||||||
|
FILE* out;
|
||||||
|
const int to_stdout = (file_name == NULL) || !WSTRCMP(file_name, "-");
|
||||||
|
|
||||||
|
if (data == NULL) {
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
out = to_stdout ? ImgIoUtilSetBinaryMode(stdout) : WFOPEN(file_name, "wb");
|
||||||
|
if (out == NULL) {
|
||||||
|
WFPRINTF(stderr, "Error! Cannot open output file '%s'\n",
|
||||||
|
(const W_CHAR*)file_name);
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
ok = (fwrite(data, data_size, 1, out) == 1);
|
||||||
|
if (out != stdout) fclose(out);
|
||||||
|
return ok;
|
||||||
|
}
|
||||||
|
|
||||||
|
// -----------------------------------------------------------------------------
|
||||||
|
|
||||||
|
void ImgIoUtilCopyPlane(const uint8_t* src, int src_stride,
|
||||||
|
uint8_t* dst, int dst_stride, int width, int height) {
|
||||||
|
while (height-- > 0) {
|
||||||
|
memcpy(dst, src, width * sizeof(*dst));
|
||||||
|
src += src_stride;
|
||||||
|
dst += dst_stride;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
// -----------------------------------------------------------------------------
|
||||||
|
|
||||||
|
int ImgIoUtilCheckSizeArgumentsOverflow(uint64_t stride, size_t height) {
|
||||||
|
const uint64_t total_size = stride * height;
|
||||||
|
int ok = (total_size == (size_t)total_size);
|
||||||
|
// check that 'stride' is representable as int:
|
||||||
|
ok = ok && ((uint64_t)(int)stride == stride);
|
||||||
|
#if defined(WEBP_MAX_IMAGE_SIZE)
|
||||||
|
ok = ok && (total_size <= (uint64_t)WEBP_MAX_IMAGE_SIZE);
|
||||||
|
#endif
|
||||||
|
return ok;
|
||||||
|
}
|
||||||
|
|
||||||
|
// -----------------------------------------------------------------------------
|
64
imageio/imageio_util.h
Normal file
64
imageio/imageio_util.h
Normal file
@ -0,0 +1,64 @@
|
|||||||
|
// Copyright 2016 Google Inc. All Rights Reserved.
|
||||||
|
//
|
||||||
|
// Use of this source code is governed by a BSD-style license
|
||||||
|
// that can be found in the COPYING file in the root of the source
|
||||||
|
// tree. An additional intellectual property rights grant can be found
|
||||||
|
// in the file PATENTS. All contributing project authors may
|
||||||
|
// be found in the AUTHORS file in the root of the source tree.
|
||||||
|
// -----------------------------------------------------------------------------
|
||||||
|
//
|
||||||
|
// Utility functions used by the image decoders.
|
||||||
|
//
|
||||||
|
|
||||||
|
#ifndef WEBP_IMAGEIO_IMAGEIO_UTIL_H_
|
||||||
|
#define WEBP_IMAGEIO_IMAGEIO_UTIL_H_
|
||||||
|
|
||||||
|
#include <stdio.h>
|
||||||
|
#include "webp/types.h"
|
||||||
|
|
||||||
|
#ifdef __cplusplus
|
||||||
|
extern "C" {
|
||||||
|
#endif
|
||||||
|
|
||||||
|
//------------------------------------------------------------------------------
|
||||||
|
// File I/O
|
||||||
|
|
||||||
|
// Reopen file in binary (O_BINARY) mode.
|
||||||
|
// Returns 'file' on success, NULL otherwise.
|
||||||
|
FILE* ImgIoUtilSetBinaryMode(FILE* file);
|
||||||
|
|
||||||
|
// Allocates storage for entire file 'file_name' and returns contents and size
|
||||||
|
// in 'data' and 'data_size'. Returns 1 on success, 0 otherwise. '*data' should
|
||||||
|
// be deleted using WebPFree().
|
||||||
|
// Note: for convenience, the data will be null-terminated with an extra byte
|
||||||
|
// (not accounted for in *data_size), in case the file is text and intended
|
||||||
|
// to be used as a C-string.
|
||||||
|
// If 'file_name' is NULL or equal to "-", input is read from stdin by calling
|
||||||
|
// the function ImgIoUtilReadFromStdin().
|
||||||
|
int ImgIoUtilReadFile(const char* const file_name,
|
||||||
|
const uint8_t** data, size_t* data_size);
|
||||||
|
|
||||||
|
// Same as ImgIoUtilReadFile(), but reads until EOF from stdin instead.
|
||||||
|
int ImgIoUtilReadFromStdin(const uint8_t** data, size_t* data_size);
|
||||||
|
|
||||||
|
// Write a data segment into a file named 'file_name'. Returns true if ok.
|
||||||
|
// If 'file_name' is NULL or equal to "-", output is written to stdout.
|
||||||
|
int ImgIoUtilWriteFile(const char* const file_name,
|
||||||
|
const uint8_t* data, size_t data_size);
|
||||||
|
|
||||||
|
//------------------------------------------------------------------------------
|
||||||
|
|
||||||
|
// Copy width x height pixels from 'src' to 'dst' honoring the strides.
|
||||||
|
void ImgIoUtilCopyPlane(const uint8_t* src, int src_stride,
|
||||||
|
uint8_t* dst, int dst_stride, int width, int height);
|
||||||
|
|
||||||
|
//------------------------------------------------------------------------------
|
||||||
|
|
||||||
|
// Returns 0 in case of overflow, memory over-allocation or excessive dimension.
|
||||||
|
int ImgIoUtilCheckSizeArgumentsOverflow(uint64_t stride, size_t height);
|
||||||
|
|
||||||
|
#ifdef __cplusplus
|
||||||
|
} // extern "C"
|
||||||
|
#endif
|
||||||
|
|
||||||
|
#endif // WEBP_IMAGEIO_IMAGEIO_UTIL_H_
|
364
imageio/jpegdec.c
Normal file
364
imageio/jpegdec.c
Normal file
@ -0,0 +1,364 @@
|
|||||||
|
// Copyright 2012 Google Inc. All Rights Reserved.
|
||||||
|
//
|
||||||
|
// Use of this source code is governed by a BSD-style license
|
||||||
|
// that can be found in the COPYING file in the root of the source
|
||||||
|
// tree. An additional intellectual property rights grant can be found
|
||||||
|
// in the file PATENTS. All contributing project authors may
|
||||||
|
// be found in the AUTHORS file in the root of the source tree.
|
||||||
|
// -----------------------------------------------------------------------------
|
||||||
|
//
|
||||||
|
// JPEG decode.
|
||||||
|
|
||||||
|
#include "./jpegdec.h"
|
||||||
|
|
||||||
|
#ifdef HAVE_CONFIG_H
|
||||||
|
#include "webp/config.h"
|
||||||
|
#endif
|
||||||
|
|
||||||
|
#include <stdio.h>
|
||||||
|
|
||||||
|
#ifdef WEBP_HAVE_JPEG
|
||||||
|
#include <jpeglib.h>
|
||||||
|
#include <jerror.h>
|
||||||
|
#include <setjmp.h>
|
||||||
|
#include <stdlib.h>
|
||||||
|
#include <string.h>
|
||||||
|
|
||||||
|
#include "webp/encode.h"
|
||||||
|
#include "./imageio_util.h"
|
||||||
|
#include "./metadata.h"
|
||||||
|
|
||||||
|
// -----------------------------------------------------------------------------
|
||||||
|
// Metadata processing
|
||||||
|
|
||||||
|
#ifndef JPEG_APP1
|
||||||
|
# define JPEG_APP1 (JPEG_APP0 + 1)
|
||||||
|
#endif
|
||||||
|
#ifndef JPEG_APP2
|
||||||
|
# define JPEG_APP2 (JPEG_APP0 + 2)
|
||||||
|
#endif
|
||||||
|
|
||||||
|
typedef struct {
|
||||||
|
const uint8_t* data;
|
||||||
|
size_t data_length;
|
||||||
|
int seq; // this segment's sequence number [1, 255] for use in reassembly.
|
||||||
|
} ICCPSegment;
|
||||||
|
|
||||||
|
static void SaveMetadataMarkers(j_decompress_ptr dinfo) {
|
||||||
|
const unsigned int max_marker_length = 0xffff;
|
||||||
|
jpeg_save_markers(dinfo, JPEG_APP1, max_marker_length); // Exif/XMP
|
||||||
|
jpeg_save_markers(dinfo, JPEG_APP2, max_marker_length); // ICC profile
|
||||||
|
}
|
||||||
|
|
||||||
|
static int CompareICCPSegments(const void* a, const void* b) {
|
||||||
|
const ICCPSegment* s1 = (const ICCPSegment*)a;
|
||||||
|
const ICCPSegment* s2 = (const ICCPSegment*)b;
|
||||||
|
return s1->seq - s2->seq;
|
||||||
|
}
|
||||||
|
|
||||||
|
// Extract ICC profile segments from the marker list in 'dinfo', reassembling
|
||||||
|
// and storing them in 'iccp'.
|
||||||
|
// Returns true on success and false for memory errors and corrupt profiles.
|
||||||
|
static int StoreICCP(j_decompress_ptr dinfo, MetadataPayload* const iccp) {
|
||||||
|
// ICC.1:2010-12 (4.3.0.0) Annex B.4 Embedding ICC Profiles in JPEG files
|
||||||
|
static const char kICCPSignature[] = "ICC_PROFILE";
|
||||||
|
static const size_t kICCPSignatureLength = 12; // signature includes '\0'
|
||||||
|
static const size_t kICCPSkipLength = 14; // signature + seq & count
|
||||||
|
int expected_count = 0;
|
||||||
|
int actual_count = 0;
|
||||||
|
int seq_max = 0;
|
||||||
|
size_t total_size = 0;
|
||||||
|
ICCPSegment iccp_segments[255];
|
||||||
|
jpeg_saved_marker_ptr marker;
|
||||||
|
|
||||||
|
memset(iccp_segments, 0, sizeof(iccp_segments));
|
||||||
|
for (marker = dinfo->marker_list; marker != NULL; marker = marker->next) {
|
||||||
|
if (marker->marker == JPEG_APP2 &&
|
||||||
|
marker->data_length > kICCPSkipLength &&
|
||||||
|
!memcmp(marker->data, kICCPSignature, kICCPSignatureLength)) {
|
||||||
|
// ICC_PROFILE\0<seq><count>; 'seq' starts at 1.
|
||||||
|
const int seq = marker->data[kICCPSignatureLength];
|
||||||
|
const int count = marker->data[kICCPSignatureLength + 1];
|
||||||
|
const size_t segment_size = marker->data_length - kICCPSkipLength;
|
||||||
|
ICCPSegment* segment;
|
||||||
|
|
||||||
|
if (segment_size == 0 || count == 0 || seq == 0) {
|
||||||
|
fprintf(stderr, "[ICCP] size (%d) / count (%d) / sequence number (%d)"
|
||||||
|
" cannot be 0!\n",
|
||||||
|
(int)segment_size, seq, count);
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (expected_count == 0) {
|
||||||
|
expected_count = count;
|
||||||
|
} else if (expected_count != count) {
|
||||||
|
fprintf(stderr, "[ICCP] Inconsistent segment count (%d / %d)!\n",
|
||||||
|
expected_count, count);
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
segment = iccp_segments + seq - 1;
|
||||||
|
if (segment->data_length != 0) {
|
||||||
|
fprintf(stderr, "[ICCP] Duplicate segment number (%d)!\n" , seq);
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
segment->data = marker->data + kICCPSkipLength;
|
||||||
|
segment->data_length = segment_size;
|
||||||
|
segment->seq = seq;
|
||||||
|
total_size += segment_size;
|
||||||
|
if (seq > seq_max) seq_max = seq;
|
||||||
|
++actual_count;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
if (actual_count == 0) return 1;
|
||||||
|
if (seq_max != actual_count) {
|
||||||
|
fprintf(stderr, "[ICCP] Discontinuous segments, expected: %d actual: %d!\n",
|
||||||
|
actual_count, seq_max);
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
if (expected_count != actual_count) {
|
||||||
|
fprintf(stderr, "[ICCP] Segment count: %d does not match expected: %d!\n",
|
||||||
|
actual_count, expected_count);
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
// The segments may appear out of order in the file, sort them based on
|
||||||
|
// sequence number before assembling the payload.
|
||||||
|
qsort(iccp_segments, actual_count, sizeof(*iccp_segments),
|
||||||
|
CompareICCPSegments);
|
||||||
|
|
||||||
|
iccp->bytes = (uint8_t*)malloc(total_size);
|
||||||
|
if (iccp->bytes == NULL) return 0;
|
||||||
|
iccp->size = total_size;
|
||||||
|
|
||||||
|
{
|
||||||
|
int i;
|
||||||
|
size_t offset = 0;
|
||||||
|
for (i = 0; i < seq_max; ++i) {
|
||||||
|
memcpy(iccp->bytes + offset,
|
||||||
|
iccp_segments[i].data, iccp_segments[i].data_length);
|
||||||
|
offset += iccp_segments[i].data_length;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
return 1;
|
||||||
|
}
|
||||||
|
|
||||||
|
// Returns true on success and false for memory errors and corrupt profiles.
|
||||||
|
// The caller must use MetadataFree() on 'metadata' in all cases.
|
||||||
|
static int ExtractMetadataFromJPEG(j_decompress_ptr dinfo,
|
||||||
|
Metadata* const metadata) {
|
||||||
|
static const struct {
|
||||||
|
int marker;
|
||||||
|
const char* signature;
|
||||||
|
size_t signature_length;
|
||||||
|
size_t storage_offset;
|
||||||
|
} kJPEGMetadataMap[] = {
|
||||||
|
// Exif 2.2 Section 4.7.2 Interoperability Structure of APP1 ...
|
||||||
|
{ JPEG_APP1, "Exif\0", 6, METADATA_OFFSET(exif) },
|
||||||
|
// XMP Specification Part 3 Section 3 Embedding XMP Metadata ... #JPEG
|
||||||
|
// TODO(jzern) Add support for 'ExtendedXMP'
|
||||||
|
{ JPEG_APP1, "http://ns.adobe.com/xap/1.0/", 29, METADATA_OFFSET(xmp) },
|
||||||
|
{ 0, NULL, 0, 0 },
|
||||||
|
};
|
||||||
|
jpeg_saved_marker_ptr marker;
|
||||||
|
// Treat ICC profiles separately as they may be segmented and out of order.
|
||||||
|
if (!StoreICCP(dinfo, &metadata->iccp)) return 0;
|
||||||
|
|
||||||
|
for (marker = dinfo->marker_list; marker != NULL; marker = marker->next) {
|
||||||
|
int i;
|
||||||
|
for (i = 0; kJPEGMetadataMap[i].marker != 0; ++i) {
|
||||||
|
if (marker->marker == kJPEGMetadataMap[i].marker &&
|
||||||
|
marker->data_length > kJPEGMetadataMap[i].signature_length &&
|
||||||
|
!memcmp(marker->data, kJPEGMetadataMap[i].signature,
|
||||||
|
kJPEGMetadataMap[i].signature_length)) {
|
||||||
|
MetadataPayload* const payload =
|
||||||
|
(MetadataPayload*)((uint8_t*)metadata +
|
||||||
|
kJPEGMetadataMap[i].storage_offset);
|
||||||
|
|
||||||
|
if (payload->bytes == NULL) {
|
||||||
|
const char* marker_data = (const char*)marker->data +
|
||||||
|
kJPEGMetadataMap[i].signature_length;
|
||||||
|
const size_t marker_data_length =
|
||||||
|
marker->data_length - kJPEGMetadataMap[i].signature_length;
|
||||||
|
if (!MetadataCopy(marker_data, marker_data_length, payload)) return 0;
|
||||||
|
} else {
|
||||||
|
fprintf(stderr, "Ignoring additional '%s' marker\n",
|
||||||
|
kJPEGMetadataMap[i].signature);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
return 1;
|
||||||
|
}
|
||||||
|
|
||||||
|
#undef JPEG_APP1
|
||||||
|
#undef JPEG_APP2
|
||||||
|
|
||||||
|
// -----------------------------------------------------------------------------
|
||||||
|
// JPEG decoding
|
||||||
|
|
||||||
|
struct my_error_mgr {
|
||||||
|
struct jpeg_error_mgr pub;
|
||||||
|
jmp_buf setjmp_buffer;
|
||||||
|
};
|
||||||
|
|
||||||
|
static void my_error_exit(j_common_ptr dinfo) {
|
||||||
|
struct my_error_mgr* myerr = (struct my_error_mgr*)dinfo->err;
|
||||||
|
fprintf(stderr, "libjpeg error: ");
|
||||||
|
dinfo->err->output_message(dinfo);
|
||||||
|
longjmp(myerr->setjmp_buffer, 1);
|
||||||
|
}
|
||||||
|
|
||||||
|
typedef struct {
|
||||||
|
struct jpeg_source_mgr pub;
|
||||||
|
const uint8_t* data;
|
||||||
|
size_t data_size;
|
||||||
|
} JPEGReadContext;
|
||||||
|
|
||||||
|
static void ContextInit(j_decompress_ptr cinfo) {
|
||||||
|
JPEGReadContext* const ctx = (JPEGReadContext*)cinfo->src;
|
||||||
|
ctx->pub.next_input_byte = ctx->data;
|
||||||
|
ctx->pub.bytes_in_buffer = ctx->data_size;
|
||||||
|
}
|
||||||
|
|
||||||
|
static boolean ContextFill(j_decompress_ptr cinfo) {
|
||||||
|
// we shouldn't get here.
|
||||||
|
ERREXIT(cinfo, JERR_FILE_READ);
|
||||||
|
return FALSE;
|
||||||
|
}
|
||||||
|
|
||||||
|
static void ContextSkip(j_decompress_ptr cinfo, long jump_size) {
|
||||||
|
JPEGReadContext* const ctx = (JPEGReadContext*)cinfo->src;
|
||||||
|
size_t jump = (size_t)jump_size;
|
||||||
|
if (jump > ctx->pub.bytes_in_buffer) { // Don't overflow the buffer.
|
||||||
|
jump = ctx->pub.bytes_in_buffer;
|
||||||
|
}
|
||||||
|
ctx->pub.bytes_in_buffer -= jump;
|
||||||
|
ctx->pub.next_input_byte += jump;
|
||||||
|
}
|
||||||
|
|
||||||
|
static void ContextTerm(j_decompress_ptr cinfo) {
|
||||||
|
(void)cinfo;
|
||||||
|
}
|
||||||
|
|
||||||
|
static void ContextSetup(volatile struct jpeg_decompress_struct* const cinfo,
|
||||||
|
JPEGReadContext* const ctx) {
|
||||||
|
cinfo->src = (struct jpeg_source_mgr*)ctx;
|
||||||
|
ctx->pub.init_source = ContextInit;
|
||||||
|
ctx->pub.fill_input_buffer = ContextFill;
|
||||||
|
ctx->pub.skip_input_data = ContextSkip;
|
||||||
|
ctx->pub.resync_to_restart = jpeg_resync_to_restart;
|
||||||
|
ctx->pub.term_source = ContextTerm;
|
||||||
|
ctx->pub.bytes_in_buffer = 0;
|
||||||
|
ctx->pub.next_input_byte = NULL;
|
||||||
|
}
|
||||||
|
|
||||||
|
int ReadJPEG(const uint8_t* const data, size_t data_size,
|
||||||
|
WebPPicture* const pic, int keep_alpha,
|
||||||
|
Metadata* const metadata) {
|
||||||
|
volatile int ok = 0;
|
||||||
|
int width, height;
|
||||||
|
int64_t stride;
|
||||||
|
volatile struct jpeg_decompress_struct dinfo;
|
||||||
|
struct my_error_mgr jerr;
|
||||||
|
uint8_t* volatile rgb = NULL;
|
||||||
|
JSAMPROW buffer[1];
|
||||||
|
JPEGReadContext ctx;
|
||||||
|
|
||||||
|
if (data == NULL || data_size == 0 || pic == NULL) return 0;
|
||||||
|
|
||||||
|
(void)keep_alpha;
|
||||||
|
memset(&ctx, 0, sizeof(ctx));
|
||||||
|
ctx.data = data;
|
||||||
|
ctx.data_size = data_size;
|
||||||
|
|
||||||
|
memset((j_decompress_ptr)&dinfo, 0, sizeof(dinfo)); // for setjmp safety
|
||||||
|
dinfo.err = jpeg_std_error(&jerr.pub);
|
||||||
|
jerr.pub.error_exit = my_error_exit;
|
||||||
|
|
||||||
|
if (setjmp(jerr.setjmp_buffer)) {
|
||||||
|
Error:
|
||||||
|
MetadataFree(metadata);
|
||||||
|
jpeg_destroy_decompress((j_decompress_ptr)&dinfo);
|
||||||
|
goto End;
|
||||||
|
}
|
||||||
|
|
||||||
|
jpeg_create_decompress((j_decompress_ptr)&dinfo);
|
||||||
|
ContextSetup(&dinfo, &ctx);
|
||||||
|
if (metadata != NULL) SaveMetadataMarkers((j_decompress_ptr)&dinfo);
|
||||||
|
jpeg_read_header((j_decompress_ptr)&dinfo, TRUE);
|
||||||
|
|
||||||
|
dinfo.out_color_space = JCS_RGB;
|
||||||
|
dinfo.do_fancy_upsampling = TRUE;
|
||||||
|
|
||||||
|
jpeg_start_decompress((j_decompress_ptr)&dinfo);
|
||||||
|
|
||||||
|
if (dinfo.output_components != 3) {
|
||||||
|
goto Error;
|
||||||
|
}
|
||||||
|
|
||||||
|
width = dinfo.output_width;
|
||||||
|
height = dinfo.output_height;
|
||||||
|
stride = (int64_t)dinfo.output_width * dinfo.output_components * sizeof(*rgb);
|
||||||
|
|
||||||
|
if (stride != (int)stride ||
|
||||||
|
!ImgIoUtilCheckSizeArgumentsOverflow(stride, height)) {
|
||||||
|
goto Error;
|
||||||
|
}
|
||||||
|
|
||||||
|
rgb = (uint8_t*)malloc((size_t)stride * height);
|
||||||
|
if (rgb == NULL) {
|
||||||
|
goto Error;
|
||||||
|
}
|
||||||
|
buffer[0] = (JSAMPLE*)rgb;
|
||||||
|
|
||||||
|
while (dinfo.output_scanline < dinfo.output_height) {
|
||||||
|
if (jpeg_read_scanlines((j_decompress_ptr)&dinfo, buffer, 1) != 1) {
|
||||||
|
goto Error;
|
||||||
|
}
|
||||||
|
buffer[0] += stride;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (metadata != NULL) {
|
||||||
|
ok = ExtractMetadataFromJPEG((j_decompress_ptr)&dinfo, metadata);
|
||||||
|
if (!ok) {
|
||||||
|
fprintf(stderr, "Error extracting JPEG metadata!\n");
|
||||||
|
goto Error;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
jpeg_finish_decompress((j_decompress_ptr)&dinfo);
|
||||||
|
jpeg_destroy_decompress((j_decompress_ptr)&dinfo);
|
||||||
|
|
||||||
|
// WebP conversion.
|
||||||
|
pic->width = width;
|
||||||
|
pic->height = height;
|
||||||
|
ok = WebPPictureImportRGB(pic, rgb, (int)stride);
|
||||||
|
if (!ok) {
|
||||||
|
pic->width = 0; // WebPPictureImportRGB() barely touches 'pic' on failure.
|
||||||
|
pic->height = 0; // Just reset dimensions but keep any 'custom_ptr' etc.
|
||||||
|
MetadataFree(metadata); // In case the caller forgets to free it on error.
|
||||||
|
}
|
||||||
|
|
||||||
|
End:
|
||||||
|
free(rgb);
|
||||||
|
return ok;
|
||||||
|
}
|
||||||
|
#else // !WEBP_HAVE_JPEG
|
||||||
|
int ReadJPEG(const uint8_t* const data, size_t data_size,
|
||||||
|
struct WebPPicture* const pic, int keep_alpha,
|
||||||
|
struct Metadata* const metadata) {
|
||||||
|
(void)data;
|
||||||
|
(void)data_size;
|
||||||
|
(void)pic;
|
||||||
|
(void)keep_alpha;
|
||||||
|
(void)metadata;
|
||||||
|
fprintf(stderr, "JPEG support not compiled. Please install the libjpeg "
|
||||||
|
"development package before building.\n");
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
#endif // WEBP_HAVE_JPEG
|
||||||
|
|
||||||
|
// -----------------------------------------------------------------------------
|
37
imageio/jpegdec.h
Normal file
37
imageio/jpegdec.h
Normal file
@ -0,0 +1,37 @@
|
|||||||
|
// Copyright 2012 Google Inc. All Rights Reserved.
|
||||||
|
//
|
||||||
|
// Use of this source code is governed by a BSD-style license
|
||||||
|
// that can be found in the COPYING file in the root of the source
|
||||||
|
// tree. An additional intellectual property rights grant can be found
|
||||||
|
// in the file PATENTS. All contributing project authors may
|
||||||
|
// be found in the AUTHORS file in the root of the source tree.
|
||||||
|
// -----------------------------------------------------------------------------
|
||||||
|
//
|
||||||
|
// JPEG decode.
|
||||||
|
|
||||||
|
#ifndef WEBP_IMAGEIO_JPEGDEC_H_
|
||||||
|
#define WEBP_IMAGEIO_JPEGDEC_H_
|
||||||
|
|
||||||
|
#include "webp/types.h"
|
||||||
|
|
||||||
|
#ifdef __cplusplus
|
||||||
|
extern "C" {
|
||||||
|
#endif
|
||||||
|
|
||||||
|
struct Metadata;
|
||||||
|
struct WebPPicture;
|
||||||
|
|
||||||
|
// Reads a JPEG from 'data', returning the decoded output in 'pic'.
|
||||||
|
// The output is RGB or YUV depending on pic->use_argb value.
|
||||||
|
// Returns true on success.
|
||||||
|
// 'keep_alpha' has no effect, but is kept for coherence with other signatures
|
||||||
|
// for image readers.
|
||||||
|
int ReadJPEG(const uint8_t* const data, size_t data_size,
|
||||||
|
struct WebPPicture* const pic, int keep_alpha,
|
||||||
|
struct Metadata* const metadata);
|
||||||
|
|
||||||
|
#ifdef __cplusplus
|
||||||
|
} // extern "C"
|
||||||
|
#endif
|
||||||
|
|
||||||
|
#endif // WEBP_IMAGEIO_JPEGDEC_H_
|
49
imageio/metadata.c
Normal file
49
imageio/metadata.c
Normal file
@ -0,0 +1,49 @@
|
|||||||
|
// Copyright 2012 Google Inc. All Rights Reserved.
|
||||||
|
//
|
||||||
|
// Use of this source code is governed by a BSD-style license
|
||||||
|
// that can be found in the COPYING file in the root of the source
|
||||||
|
// tree. An additional intellectual property rights grant can be found
|
||||||
|
// in the file PATENTS. All contributing project authors may
|
||||||
|
// be found in the AUTHORS file in the root of the source tree.
|
||||||
|
// -----------------------------------------------------------------------------
|
||||||
|
//
|
||||||
|
// Metadata types and functions.
|
||||||
|
//
|
||||||
|
|
||||||
|
#include "./metadata.h"
|
||||||
|
|
||||||
|
#include <stdlib.h>
|
||||||
|
#include <string.h>
|
||||||
|
|
||||||
|
#include "webp/types.h"
|
||||||
|
|
||||||
|
void MetadataInit(Metadata* const metadata) {
|
||||||
|
if (metadata == NULL) return;
|
||||||
|
memset(metadata, 0, sizeof(*metadata));
|
||||||
|
}
|
||||||
|
|
||||||
|
void MetadataPayloadDelete(MetadataPayload* const payload) {
|
||||||
|
if (payload == NULL) return;
|
||||||
|
free(payload->bytes);
|
||||||
|
payload->bytes = NULL;
|
||||||
|
payload->size = 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
void MetadataFree(Metadata* const metadata) {
|
||||||
|
if (metadata == NULL) return;
|
||||||
|
MetadataPayloadDelete(&metadata->exif);
|
||||||
|
MetadataPayloadDelete(&metadata->iccp);
|
||||||
|
MetadataPayloadDelete(&metadata->xmp);
|
||||||
|
}
|
||||||
|
|
||||||
|
int MetadataCopy(const char* metadata, size_t metadata_len,
|
||||||
|
MetadataPayload* const payload) {
|
||||||
|
if (metadata == NULL || metadata_len == 0 || payload == NULL) return 0;
|
||||||
|
payload->bytes = (uint8_t*)malloc(metadata_len);
|
||||||
|
if (payload->bytes == NULL) return 0;
|
||||||
|
payload->size = metadata_len;
|
||||||
|
memcpy(payload->bytes, metadata, metadata_len);
|
||||||
|
return 1;
|
||||||
|
}
|
||||||
|
|
||||||
|
// -----------------------------------------------------------------------------
|
47
imageio/metadata.h
Normal file
47
imageio/metadata.h
Normal file
@ -0,0 +1,47 @@
|
|||||||
|
// Copyright 2012 Google Inc. All Rights Reserved.
|
||||||
|
//
|
||||||
|
// Use of this source code is governed by a BSD-style license
|
||||||
|
// that can be found in the COPYING file in the root of the source
|
||||||
|
// tree. An additional intellectual property rights grant can be found
|
||||||
|
// in the file PATENTS. All contributing project authors may
|
||||||
|
// be found in the AUTHORS file in the root of the source tree.
|
||||||
|
// -----------------------------------------------------------------------------
|
||||||
|
//
|
||||||
|
// Metadata types and functions.
|
||||||
|
//
|
||||||
|
|
||||||
|
#ifndef WEBP_IMAGEIO_METADATA_H_
|
||||||
|
#define WEBP_IMAGEIO_METADATA_H_
|
||||||
|
|
||||||
|
#include "webp/types.h"
|
||||||
|
|
||||||
|
#ifdef __cplusplus
|
||||||
|
extern "C" {
|
||||||
|
#endif
|
||||||
|
|
||||||
|
typedef struct MetadataPayload {
|
||||||
|
uint8_t* bytes;
|
||||||
|
size_t size;
|
||||||
|
} MetadataPayload;
|
||||||
|
|
||||||
|
typedef struct Metadata {
|
||||||
|
MetadataPayload exif;
|
||||||
|
MetadataPayload iccp;
|
||||||
|
MetadataPayload xmp;
|
||||||
|
} Metadata;
|
||||||
|
|
||||||
|
#define METADATA_OFFSET(x) offsetof(Metadata, x)
|
||||||
|
|
||||||
|
void MetadataInit(Metadata* const metadata);
|
||||||
|
void MetadataPayloadDelete(MetadataPayload* const payload);
|
||||||
|
void MetadataFree(Metadata* const metadata);
|
||||||
|
|
||||||
|
// Stores 'metadata' to 'payload->bytes', returns false on allocation error.
|
||||||
|
int MetadataCopy(const char* metadata, size_t metadata_len,
|
||||||
|
MetadataPayload* const payload);
|
||||||
|
|
||||||
|
#ifdef __cplusplus
|
||||||
|
} // extern "C"
|
||||||
|
#endif
|
||||||
|
|
||||||
|
#endif // WEBP_IMAGEIO_METADATA_H_
|
374
imageio/pngdec.c
Normal file
374
imageio/pngdec.c
Normal file
@ -0,0 +1,374 @@
|
|||||||
|
// Copyright 2012 Google Inc. All Rights Reserved.
|
||||||
|
//
|
||||||
|
// Use of this source code is governed by a BSD-style license
|
||||||
|
// that can be found in the COPYING file in the root of the source
|
||||||
|
// tree. An additional intellectual property rights grant can be found
|
||||||
|
// in the file PATENTS. All contributing project authors may
|
||||||
|
// be found in the AUTHORS file in the root of the source tree.
|
||||||
|
// -----------------------------------------------------------------------------
|
||||||
|
//
|
||||||
|
// PNG decode.
|
||||||
|
|
||||||
|
#include "./pngdec.h"
|
||||||
|
|
||||||
|
#ifdef HAVE_CONFIG_H
|
||||||
|
#include "webp/config.h"
|
||||||
|
#endif
|
||||||
|
|
||||||
|
#include <stdio.h>
|
||||||
|
|
||||||
|
#ifdef WEBP_HAVE_PNG
|
||||||
|
#ifndef PNG_USER_MEM_SUPPORTED
|
||||||
|
#define PNG_USER_MEM_SUPPORTED // for png_create_read_struct_2
|
||||||
|
#endif
|
||||||
|
#include <png.h>
|
||||||
|
#include <setjmp.h> // note: this must be included *after* png.h
|
||||||
|
#include <stdlib.h>
|
||||||
|
#include <string.h>
|
||||||
|
|
||||||
|
#include "webp/encode.h"
|
||||||
|
#include "./imageio_util.h"
|
||||||
|
#include "./metadata.h"
|
||||||
|
|
||||||
|
#define LOCAL_PNG_VERSION ((PNG_LIBPNG_VER_MAJOR << 8) | PNG_LIBPNG_VER_MINOR)
|
||||||
|
#define LOCAL_PNG_PREREQ(maj, min) \
|
||||||
|
(LOCAL_PNG_VERSION >= (((maj) << 8) | (min)))
|
||||||
|
|
||||||
|
static void PNGAPI error_function(png_structp png, png_const_charp error) {
|
||||||
|
if (error != NULL) fprintf(stderr, "libpng error: %s\n", error);
|
||||||
|
longjmp(png_jmpbuf(png), 1);
|
||||||
|
}
|
||||||
|
|
||||||
|
#if LOCAL_PNG_PREREQ(1,4)
|
||||||
|
typedef png_alloc_size_t LocalPngAllocSize;
|
||||||
|
#else
|
||||||
|
typedef png_size_t LocalPngAllocSize;
|
||||||
|
#endif
|
||||||
|
|
||||||
|
static png_voidp MallocFunc(png_structp png_ptr, LocalPngAllocSize size) {
|
||||||
|
(void)png_ptr;
|
||||||
|
if (size != (size_t)size) return NULL;
|
||||||
|
if (!ImgIoUtilCheckSizeArgumentsOverflow(size, 1)) return NULL;
|
||||||
|
return (png_voidp)malloc((size_t)size);
|
||||||
|
}
|
||||||
|
|
||||||
|
static void FreeFunc(png_structp png_ptr, png_voidp ptr) {
|
||||||
|
(void)png_ptr;
|
||||||
|
free(ptr);
|
||||||
|
}
|
||||||
|
|
||||||
|
// Converts the NULL terminated 'hexstring' which contains 2-byte character
|
||||||
|
// representations of hex values to raw data.
|
||||||
|
// 'hexstring' may contain values consisting of [A-F][a-f][0-9] in pairs,
|
||||||
|
// e.g., 7af2..., separated by any number of newlines.
|
||||||
|
// 'expected_length' is the anticipated processed size.
|
||||||
|
// On success the raw buffer is returned with its length equivalent to
|
||||||
|
// 'expected_length'. NULL is returned if the processed length is less than
|
||||||
|
// 'expected_length' or any character aside from those above is encountered.
|
||||||
|
// The returned buffer must be freed by the caller.
|
||||||
|
static uint8_t* HexStringToBytes(const char* hexstring,
|
||||||
|
size_t expected_length) {
|
||||||
|
const char* src = hexstring;
|
||||||
|
size_t actual_length = 0;
|
||||||
|
uint8_t* const raw_data = (uint8_t*)malloc(expected_length);
|
||||||
|
uint8_t* dst;
|
||||||
|
|
||||||
|
if (raw_data == NULL) return NULL;
|
||||||
|
|
||||||
|
for (dst = raw_data; actual_length < expected_length && *src != '\0'; ++src) {
|
||||||
|
char* end;
|
||||||
|
char val[3];
|
||||||
|
if (*src == '\n') continue;
|
||||||
|
val[0] = *src++;
|
||||||
|
val[1] = *src;
|
||||||
|
val[2] = '\0';
|
||||||
|
*dst++ = (uint8_t)strtol(val, &end, 16);
|
||||||
|
if (end != val + 2) break;
|
||||||
|
++actual_length;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (actual_length != expected_length) {
|
||||||
|
free(raw_data);
|
||||||
|
return NULL;
|
||||||
|
}
|
||||||
|
return raw_data;
|
||||||
|
}
|
||||||
|
|
||||||
|
static int ProcessRawProfile(const char* profile, size_t profile_len,
|
||||||
|
MetadataPayload* const payload) {
|
||||||
|
const char* src = profile;
|
||||||
|
char* end;
|
||||||
|
int expected_length;
|
||||||
|
|
||||||
|
if (profile == NULL || profile_len == 0) return 0;
|
||||||
|
|
||||||
|
// ImageMagick formats 'raw profiles' as
|
||||||
|
// '\n<name>\n<length>(%8lu)\n<hex payload>\n'.
|
||||||
|
if (*src != '\n') {
|
||||||
|
fprintf(stderr, "Malformed raw profile, expected '\\n' got '\\x%.2X'\n",
|
||||||
|
*src);
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
++src;
|
||||||
|
// skip the profile name and extract the length.
|
||||||
|
while (*src != '\0' && *src++ != '\n') {}
|
||||||
|
expected_length = (int)strtol(src, &end, 10);
|
||||||
|
if (*end != '\n') {
|
||||||
|
fprintf(stderr, "Malformed raw profile, expected '\\n' got '\\x%.2X'\n",
|
||||||
|
*end);
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
++end;
|
||||||
|
|
||||||
|
// 'end' now points to the profile payload.
|
||||||
|
payload->bytes = HexStringToBytes(end, expected_length);
|
||||||
|
if (payload->bytes == NULL) return 0;
|
||||||
|
payload->size = expected_length;
|
||||||
|
return 1;
|
||||||
|
}
|
||||||
|
|
||||||
|
static const struct {
|
||||||
|
const char* name;
|
||||||
|
int (*process)(const char* profile, size_t profile_len,
|
||||||
|
MetadataPayload* const payload);
|
||||||
|
size_t storage_offset;
|
||||||
|
} kPNGMetadataMap[] = {
|
||||||
|
// https://exiftool.org/TagNames/PNG.html#TextualData
|
||||||
|
// See also: ExifTool on CPAN.
|
||||||
|
{ "Raw profile type exif", ProcessRawProfile, METADATA_OFFSET(exif) },
|
||||||
|
{ "Raw profile type xmp", ProcessRawProfile, METADATA_OFFSET(xmp) },
|
||||||
|
// Exiftool puts exif data in APP1 chunk, too.
|
||||||
|
{ "Raw profile type APP1", ProcessRawProfile, METADATA_OFFSET(exif) },
|
||||||
|
// XMP Specification Part 3, Section 3 #PNG
|
||||||
|
{ "XML:com.adobe.xmp", MetadataCopy, METADATA_OFFSET(xmp) },
|
||||||
|
{ NULL, NULL, 0 },
|
||||||
|
};
|
||||||
|
|
||||||
|
// Looks for metadata at both the beginning and end of the PNG file, giving
|
||||||
|
// preference to the head.
|
||||||
|
// Returns true on success. The caller must use MetadataFree() on 'metadata' in
|
||||||
|
// all cases.
|
||||||
|
static int ExtractMetadataFromPNG(png_structp png,
|
||||||
|
png_infop const head_info,
|
||||||
|
png_infop const end_info,
|
||||||
|
Metadata* const metadata) {
|
||||||
|
int p;
|
||||||
|
|
||||||
|
for (p = 0; p < 2; ++p) {
|
||||||
|
png_infop const info = (p == 0) ? head_info : end_info;
|
||||||
|
png_textp text = NULL;
|
||||||
|
const png_uint_32 num = png_get_text(png, info, &text, NULL);
|
||||||
|
png_uint_32 i;
|
||||||
|
// Look for EXIF / XMP metadata.
|
||||||
|
for (i = 0; i < num; ++i, ++text) {
|
||||||
|
int j;
|
||||||
|
for (j = 0; kPNGMetadataMap[j].name != NULL; ++j) {
|
||||||
|
if (!strcmp(text->key, kPNGMetadataMap[j].name)) {
|
||||||
|
MetadataPayload* const payload =
|
||||||
|
(MetadataPayload*)((uint8_t*)metadata +
|
||||||
|
kPNGMetadataMap[j].storage_offset);
|
||||||
|
png_size_t text_length;
|
||||||
|
switch (text->compression) {
|
||||||
|
#ifdef PNG_iTXt_SUPPORTED
|
||||||
|
case PNG_ITXT_COMPRESSION_NONE:
|
||||||
|
case PNG_ITXT_COMPRESSION_zTXt:
|
||||||
|
text_length = text->itxt_length;
|
||||||
|
break;
|
||||||
|
#endif
|
||||||
|
case PNG_TEXT_COMPRESSION_NONE:
|
||||||
|
case PNG_TEXT_COMPRESSION_zTXt:
|
||||||
|
default:
|
||||||
|
text_length = text->text_length;
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
if (payload->bytes != NULL) {
|
||||||
|
fprintf(stderr, "Ignoring additional '%s'\n", text->key);
|
||||||
|
} else if (!kPNGMetadataMap[j].process(text->text, text_length,
|
||||||
|
payload)) {
|
||||||
|
fprintf(stderr, "Failed to process: '%s'\n", text->key);
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
// Look for an ICC profile.
|
||||||
|
{
|
||||||
|
png_charp name;
|
||||||
|
int comp_type;
|
||||||
|
#if LOCAL_PNG_PREREQ(1,5)
|
||||||
|
png_bytep profile;
|
||||||
|
#else
|
||||||
|
png_charp profile;
|
||||||
|
#endif
|
||||||
|
png_uint_32 len;
|
||||||
|
|
||||||
|
if (png_get_iCCP(png, info,
|
||||||
|
&name, &comp_type, &profile, &len) == PNG_INFO_iCCP) {
|
||||||
|
if (!MetadataCopy((const char*)profile, len, &metadata->iccp)) return 0;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
return 1;
|
||||||
|
}
|
||||||
|
|
||||||
|
typedef struct {
|
||||||
|
const uint8_t* data;
|
||||||
|
size_t data_size;
|
||||||
|
png_size_t offset;
|
||||||
|
} PNGReadContext;
|
||||||
|
|
||||||
|
static void ReadFunc(png_structp png_ptr, png_bytep data, png_size_t length) {
|
||||||
|
PNGReadContext* const ctx = (PNGReadContext*)png_get_io_ptr(png_ptr);
|
||||||
|
if (ctx->data_size - ctx->offset < length) {
|
||||||
|
png_error(png_ptr, "ReadFunc: invalid read length (overflow)!");
|
||||||
|
}
|
||||||
|
memcpy(data, ctx->data + ctx->offset, length);
|
||||||
|
ctx->offset += length;
|
||||||
|
}
|
||||||
|
|
||||||
|
int ReadPNG(const uint8_t* const data, size_t data_size,
|
||||||
|
struct WebPPicture* const pic,
|
||||||
|
int keep_alpha, struct Metadata* const metadata) {
|
||||||
|
volatile png_structp png = NULL;
|
||||||
|
volatile png_infop info = NULL;
|
||||||
|
volatile png_infop end_info = NULL;
|
||||||
|
PNGReadContext context = { NULL, 0, 0 };
|
||||||
|
int color_type, bit_depth, interlaced;
|
||||||
|
int num_channels;
|
||||||
|
int num_passes;
|
||||||
|
int p;
|
||||||
|
volatile int ok = 0;
|
||||||
|
png_uint_32 width, height, y;
|
||||||
|
int64_t stride;
|
||||||
|
uint8_t* volatile rgb = NULL;
|
||||||
|
|
||||||
|
if (data == NULL || data_size == 0 || pic == NULL) return 0;
|
||||||
|
|
||||||
|
context.data = data;
|
||||||
|
context.data_size = data_size;
|
||||||
|
|
||||||
|
png = png_create_read_struct_2(PNG_LIBPNG_VER_STRING, NULL, NULL, NULL,
|
||||||
|
NULL, MallocFunc, FreeFunc);
|
||||||
|
if (png == NULL) goto End;
|
||||||
|
|
||||||
|
png_set_error_fn(png, 0, error_function, NULL);
|
||||||
|
if (setjmp(png_jmpbuf(png))) {
|
||||||
|
Error:
|
||||||
|
MetadataFree(metadata);
|
||||||
|
goto End;
|
||||||
|
}
|
||||||
|
|
||||||
|
#if LOCAL_PNG_PREREQ(1,5) || \
|
||||||
|
(LOCAL_PNG_PREREQ(1,4) && PNG_LIBPNG_VER_RELEASE >= 1)
|
||||||
|
// If it looks like the bitstream is going to need more memory than libpng's
|
||||||
|
// internal limit (default: 8M), try to (reasonably) raise it.
|
||||||
|
if (data_size > png_get_chunk_malloc_max(png) && data_size < (1u << 24)) {
|
||||||
|
png_set_chunk_malloc_max(png, data_size);
|
||||||
|
}
|
||||||
|
#endif
|
||||||
|
|
||||||
|
info = png_create_info_struct(png);
|
||||||
|
if (info == NULL) goto Error;
|
||||||
|
end_info = png_create_info_struct(png);
|
||||||
|
if (end_info == NULL) goto Error;
|
||||||
|
|
||||||
|
png_set_read_fn(png, &context, ReadFunc);
|
||||||
|
png_read_info(png, info);
|
||||||
|
if (!png_get_IHDR(png, info,
|
||||||
|
&width, &height, &bit_depth, &color_type, &interlaced,
|
||||||
|
NULL, NULL)) goto Error;
|
||||||
|
|
||||||
|
png_set_strip_16(png);
|
||||||
|
png_set_packing(png);
|
||||||
|
if (color_type == PNG_COLOR_TYPE_PALETTE) {
|
||||||
|
png_set_palette_to_rgb(png);
|
||||||
|
}
|
||||||
|
if (color_type == PNG_COLOR_TYPE_GRAY ||
|
||||||
|
color_type == PNG_COLOR_TYPE_GRAY_ALPHA) {
|
||||||
|
if (bit_depth < 8) {
|
||||||
|
png_set_expand_gray_1_2_4_to_8(png);
|
||||||
|
}
|
||||||
|
png_set_gray_to_rgb(png);
|
||||||
|
}
|
||||||
|
if (png_get_valid(png, info, PNG_INFO_tRNS)) {
|
||||||
|
png_set_tRNS_to_alpha(png);
|
||||||
|
}
|
||||||
|
|
||||||
|
// Apply gamma correction if needed.
|
||||||
|
{
|
||||||
|
double image_gamma = 1 / 2.2, screen_gamma = 2.2;
|
||||||
|
int srgb_intent;
|
||||||
|
if (png_get_sRGB(png, info, &srgb_intent) ||
|
||||||
|
png_get_gAMA(png, info, &image_gamma)) {
|
||||||
|
png_set_gamma(png, screen_gamma, image_gamma);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
if (!keep_alpha) {
|
||||||
|
png_set_strip_alpha(png);
|
||||||
|
}
|
||||||
|
|
||||||
|
num_passes = png_set_interlace_handling(png);
|
||||||
|
png_read_update_info(png, info);
|
||||||
|
|
||||||
|
num_channels = png_get_channels(png, info);
|
||||||
|
if (num_channels != 3 && num_channels != 4) {
|
||||||
|
goto Error;
|
||||||
|
}
|
||||||
|
stride = (int64_t)num_channels * width * sizeof(*rgb);
|
||||||
|
if (stride != (int)stride ||
|
||||||
|
!ImgIoUtilCheckSizeArgumentsOverflow(stride, height)) {
|
||||||
|
goto Error;
|
||||||
|
}
|
||||||
|
|
||||||
|
rgb = (uint8_t*)malloc((size_t)stride * height);
|
||||||
|
if (rgb == NULL) goto Error;
|
||||||
|
for (p = 0; p < num_passes; ++p) {
|
||||||
|
png_bytep row = rgb;
|
||||||
|
for (y = 0; y < height; ++y) {
|
||||||
|
png_read_rows(png, &row, NULL, 1);
|
||||||
|
row += stride;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
png_read_end(png, end_info);
|
||||||
|
|
||||||
|
if (metadata != NULL &&
|
||||||
|
!ExtractMetadataFromPNG(png, info, end_info, metadata)) {
|
||||||
|
fprintf(stderr, "Error extracting PNG metadata!\n");
|
||||||
|
goto Error;
|
||||||
|
}
|
||||||
|
|
||||||
|
pic->width = (int)width;
|
||||||
|
pic->height = (int)height;
|
||||||
|
ok = (num_channels == 4) ? WebPPictureImportRGBA(pic, rgb, (int)stride)
|
||||||
|
: WebPPictureImportRGB(pic, rgb, (int)stride);
|
||||||
|
|
||||||
|
if (!ok) {
|
||||||
|
goto Error;
|
||||||
|
}
|
||||||
|
|
||||||
|
End:
|
||||||
|
if (png != NULL) {
|
||||||
|
png_destroy_read_struct((png_structpp)&png,
|
||||||
|
(png_infopp)&info, (png_infopp)&end_info);
|
||||||
|
}
|
||||||
|
free(rgb);
|
||||||
|
return ok;
|
||||||
|
}
|
||||||
|
#else // !WEBP_HAVE_PNG
|
||||||
|
int ReadPNG(const uint8_t* const data, size_t data_size,
|
||||||
|
struct WebPPicture* const pic,
|
||||||
|
int keep_alpha, struct Metadata* const metadata) {
|
||||||
|
(void)data;
|
||||||
|
(void)data_size;
|
||||||
|
(void)pic;
|
||||||
|
(void)keep_alpha;
|
||||||
|
(void)metadata;
|
||||||
|
fprintf(stderr, "PNG support not compiled. Please install the libpng "
|
||||||
|
"development package before building.\n");
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
#endif // WEBP_HAVE_PNG
|
||||||
|
|
||||||
|
// -----------------------------------------------------------------------------
|
37
imageio/pngdec.h
Normal file
37
imageio/pngdec.h
Normal file
@ -0,0 +1,37 @@
|
|||||||
|
// Copyright 2012 Google Inc. All Rights Reserved.
|
||||||
|
//
|
||||||
|
// Use of this source code is governed by a BSD-style license
|
||||||
|
// that can be found in the COPYING file in the root of the source
|
||||||
|
// tree. An additional intellectual property rights grant can be found
|
||||||
|
// in the file PATENTS. All contributing project authors may
|
||||||
|
// be found in the AUTHORS file in the root of the source tree.
|
||||||
|
// -----------------------------------------------------------------------------
|
||||||
|
//
|
||||||
|
// PNG decode.
|
||||||
|
|
||||||
|
#ifndef WEBP_IMAGEIO_PNGDEC_H_
|
||||||
|
#define WEBP_IMAGEIO_PNGDEC_H_
|
||||||
|
|
||||||
|
#include "webp/types.h"
|
||||||
|
|
||||||
|
#ifdef __cplusplus
|
||||||
|
extern "C" {
|
||||||
|
#endif
|
||||||
|
|
||||||
|
struct Metadata;
|
||||||
|
struct WebPPicture;
|
||||||
|
|
||||||
|
// Reads a PNG from 'data', returning the decoded output in 'pic'.
|
||||||
|
// Output is RGBA or YUVA, depending on pic->use_argb value.
|
||||||
|
// If 'keep_alpha' is true and the PNG has an alpha channel, the output is RGBA
|
||||||
|
// or YUVA. Otherwise, alpha channel is dropped and output is RGB or YUV.
|
||||||
|
// Returns true on success.
|
||||||
|
int ReadPNG(const uint8_t* const data, size_t data_size,
|
||||||
|
struct WebPPicture* const pic,
|
||||||
|
int keep_alpha, struct Metadata* const metadata);
|
||||||
|
|
||||||
|
#ifdef __cplusplus
|
||||||
|
} // extern "C"
|
||||||
|
#endif
|
||||||
|
|
||||||
|
#endif // WEBP_IMAGEIO_PNGDEC_H_
|
301
imageio/pnmdec.c
Normal file
301
imageio/pnmdec.c
Normal file
@ -0,0 +1,301 @@
|
|||||||
|
// Copyright 2017 Google Inc. All Rights Reserved.
|
||||||
|
//
|
||||||
|
// Use of this source code is governed by a BSD-style license
|
||||||
|
// that can be found in the COPYING file in the root of the source
|
||||||
|
// tree. An additional intellectual property rights grant can be found
|
||||||
|
// in the file PATENTS. All contributing project authors may
|
||||||
|
// be found in the AUTHORS file in the root of the source tree.
|
||||||
|
// -----------------------------------------------------------------------------
|
||||||
|
//
|
||||||
|
// (limited) PNM decoder
|
||||||
|
|
||||||
|
#include "./pnmdec.h"
|
||||||
|
|
||||||
|
#include <assert.h>
|
||||||
|
#include <ctype.h>
|
||||||
|
#include <stdio.h>
|
||||||
|
#include <stdlib.h>
|
||||||
|
#include <string.h>
|
||||||
|
|
||||||
|
#include "webp/encode.h"
|
||||||
|
#include "./imageio_util.h"
|
||||||
|
|
||||||
|
#if defined(_MSC_VER) && _MSC_VER < 1900
|
||||||
|
#define snprintf _snprintf
|
||||||
|
#endif
|
||||||
|
|
||||||
|
typedef enum {
|
||||||
|
WIDTH_FLAG = 1 << 0,
|
||||||
|
HEIGHT_FLAG = 1 << 1,
|
||||||
|
DEPTH_FLAG = 1 << 2,
|
||||||
|
MAXVAL_FLAG = 1 << 3,
|
||||||
|
TUPLE_FLAG = 1 << 4,
|
||||||
|
ALL_NEEDED_FLAGS = WIDTH_FLAG | HEIGHT_FLAG | DEPTH_FLAG | MAXVAL_FLAG
|
||||||
|
} PNMFlags;
|
||||||
|
|
||||||
|
typedef struct {
|
||||||
|
const uint8_t* data;
|
||||||
|
size_t data_size;
|
||||||
|
int width, height;
|
||||||
|
int bytes_per_px;
|
||||||
|
int depth; // 1 (grayscale), 2 (grayscale + alpha), 3 (rgb), 4 (rgba)
|
||||||
|
int max_value;
|
||||||
|
int type; // 5, 6 or 7
|
||||||
|
int seen_flags;
|
||||||
|
} PNMInfo;
|
||||||
|
|
||||||
|
// -----------------------------------------------------------------------------
|
||||||
|
// PNM decoding
|
||||||
|
|
||||||
|
#define MAX_LINE_SIZE 1024
|
||||||
|
static const size_t kMinPNMHeaderSize = 3;
|
||||||
|
|
||||||
|
static size_t ReadLine(const uint8_t* const data, size_t off, size_t data_size,
|
||||||
|
char out[MAX_LINE_SIZE + 1], size_t* const out_size) {
|
||||||
|
size_t i = 0;
|
||||||
|
*out_size = 0;
|
||||||
|
redo:
|
||||||
|
for (i = 0; i < MAX_LINE_SIZE && off < data_size; ++i) {
|
||||||
|
out[i] = data[off++];
|
||||||
|
if (out[i] == '\n') break;
|
||||||
|
}
|
||||||
|
if (off < data_size) {
|
||||||
|
if (i == 0) goto redo; // empty line
|
||||||
|
if (out[0] == '#') goto redo; // skip comment
|
||||||
|
}
|
||||||
|
out[i] = 0; // safety sentinel
|
||||||
|
*out_size = i;
|
||||||
|
return off;
|
||||||
|
}
|
||||||
|
|
||||||
|
static size_t FlagError(const char flag[]) {
|
||||||
|
fprintf(stderr, "PAM header error: flags '%s' already seen.\n", flag);
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
// inspired from http://netpbm.sourceforge.net/doc/pam.html
|
||||||
|
static size_t ReadPAMFields(PNMInfo* const info, size_t off) {
|
||||||
|
char out[MAX_LINE_SIZE + 1];
|
||||||
|
size_t out_size;
|
||||||
|
int tmp;
|
||||||
|
int expected_depth = -1;
|
||||||
|
assert(info != NULL);
|
||||||
|
while (1) {
|
||||||
|
off = ReadLine(info->data, off, info->data_size, out, &out_size);
|
||||||
|
if (off == 0) return 0;
|
||||||
|
if (sscanf(out, "WIDTH %d", &tmp) == 1) {
|
||||||
|
if (info->seen_flags & WIDTH_FLAG) return FlagError("WIDTH");
|
||||||
|
info->seen_flags |= WIDTH_FLAG;
|
||||||
|
info->width = tmp;
|
||||||
|
} else if (sscanf(out, "HEIGHT %d", &tmp) == 1) {
|
||||||
|
if (info->seen_flags & HEIGHT_FLAG) return FlagError("HEIGHT");
|
||||||
|
info->seen_flags |= HEIGHT_FLAG;
|
||||||
|
info->height = tmp;
|
||||||
|
} else if (sscanf(out, "DEPTH %d", &tmp) == 1) {
|
||||||
|
if (info->seen_flags & DEPTH_FLAG) return FlagError("DEPTH");
|
||||||
|
info->seen_flags |= DEPTH_FLAG;
|
||||||
|
info->depth = tmp;
|
||||||
|
} else if (sscanf(out, "MAXVAL %d", &tmp) == 1) {
|
||||||
|
if (info->seen_flags & MAXVAL_FLAG) return FlagError("MAXVAL");
|
||||||
|
info->seen_flags |= MAXVAL_FLAG;
|
||||||
|
info->max_value = tmp;
|
||||||
|
} else if (!strcmp(out, "TUPLTYPE RGB_ALPHA")) {
|
||||||
|
expected_depth = 4;
|
||||||
|
info->seen_flags |= TUPLE_FLAG;
|
||||||
|
} else if (!strcmp(out, "TUPLTYPE RGB")) {
|
||||||
|
expected_depth = 3;
|
||||||
|
info->seen_flags |= TUPLE_FLAG;
|
||||||
|
} else if (!strcmp(out, "TUPLTYPE GRAYSCALE_ALPHA")) {
|
||||||
|
expected_depth = 2;
|
||||||
|
info->seen_flags |= TUPLE_FLAG;
|
||||||
|
} else if (!strcmp(out, "TUPLTYPE GRAYSCALE")) {
|
||||||
|
expected_depth = 1;
|
||||||
|
info->seen_flags |= TUPLE_FLAG;
|
||||||
|
} else if (!strcmp(out, "ENDHDR")) {
|
||||||
|
break;
|
||||||
|
} else {
|
||||||
|
static const char kEllipsis[] = " ...";
|
||||||
|
const size_t kLen = strlen(kEllipsis) + 1; // +1 = trailing \0
|
||||||
|
int i;
|
||||||
|
if (out_size > 20) snprintf(out + 20 - kLen, kLen, kEllipsis);
|
||||||
|
for (i = 0; i < (int)strlen(out); ++i) {
|
||||||
|
// isprint() might trigger a "char-subscripts" warning if given a char.
|
||||||
|
if (!isprint((int)out[i])) out[i] = ' ';
|
||||||
|
}
|
||||||
|
fprintf(stderr, "PAM header error: unrecognized entry [%s]\n", out);
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
if (!(info->seen_flags & ALL_NEEDED_FLAGS)) {
|
||||||
|
fprintf(stderr, "PAM header error: missing tags%s%s%s%s\n",
|
||||||
|
(info->seen_flags & WIDTH_FLAG) ? "" : " WIDTH",
|
||||||
|
(info->seen_flags & HEIGHT_FLAG) ? "" : " HEIGHT",
|
||||||
|
(info->seen_flags & DEPTH_FLAG) ? "" : " DEPTH",
|
||||||
|
(info->seen_flags & MAXVAL_FLAG) ? "" : " MAXVAL");
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
if (expected_depth != -1 && info->depth != expected_depth) {
|
||||||
|
fprintf(stderr, "PAM header error: expected DEPTH %d but got DEPTH %d\n",
|
||||||
|
expected_depth, info->depth);
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
return off;
|
||||||
|
}
|
||||||
|
|
||||||
|
static size_t ReadHeader(PNMInfo* const info) {
|
||||||
|
size_t off = 0;
|
||||||
|
char out[MAX_LINE_SIZE + 1];
|
||||||
|
size_t out_size;
|
||||||
|
if (info == NULL) return 0;
|
||||||
|
if (info->data == NULL || info->data_size < kMinPNMHeaderSize) return 0;
|
||||||
|
|
||||||
|
info->width = info->height = 0;
|
||||||
|
info->type = -1;
|
||||||
|
info->seen_flags = 0;
|
||||||
|
info->bytes_per_px = 0;
|
||||||
|
info->depth = 0;
|
||||||
|
info->max_value = 0;
|
||||||
|
|
||||||
|
off = ReadLine(info->data, off, info->data_size, out, &out_size);
|
||||||
|
if (off == 0 || sscanf(out, "P%d", &info->type) != 1) return 0;
|
||||||
|
if (info->type == 7) {
|
||||||
|
off = ReadPAMFields(info, off);
|
||||||
|
} else {
|
||||||
|
off = ReadLine(info->data, off, info->data_size, out, &out_size);
|
||||||
|
if (off == 0 || sscanf(out, "%d %d", &info->width, &info->height) != 2) {
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
off = ReadLine(info->data, off, info->data_size, out, &out_size);
|
||||||
|
if (off == 0 || sscanf(out, "%d", &info->max_value) != 1) return 0;
|
||||||
|
|
||||||
|
// finish initializing missing fields
|
||||||
|
info->depth = (info->type == 5) ? 1 : 3;
|
||||||
|
}
|
||||||
|
// perform some basic numerical validation
|
||||||
|
if (info->width <= 0 || info->height <= 0 ||
|
||||||
|
info->type <= 0 || info->type >= 9 ||
|
||||||
|
info->depth <= 0 || info->depth > 4 ||
|
||||||
|
info->max_value <= 0 || info->max_value >= 65536) {
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
info->bytes_per_px = info->depth * (info->max_value > 255 ? 2 : 1);
|
||||||
|
return off;
|
||||||
|
}
|
||||||
|
|
||||||
|
int ReadPNM(const uint8_t* const data, size_t data_size,
|
||||||
|
WebPPicture* const pic, int keep_alpha,
|
||||||
|
struct Metadata* const metadata) {
|
||||||
|
int ok = 0;
|
||||||
|
int i, j;
|
||||||
|
uint64_t stride, pixel_bytes, sample_size, depth;
|
||||||
|
uint8_t* rgb = NULL, *tmp_rgb;
|
||||||
|
size_t offset;
|
||||||
|
PNMInfo info;
|
||||||
|
|
||||||
|
info.data = data;
|
||||||
|
info.data_size = data_size;
|
||||||
|
offset = ReadHeader(&info);
|
||||||
|
if (offset == 0) {
|
||||||
|
fprintf(stderr, "Error parsing PNM header.\n");
|
||||||
|
goto End;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (info.type < 5 || info.type > 7) {
|
||||||
|
fprintf(stderr, "Unsupported P%d PNM format.\n", info.type);
|
||||||
|
goto End;
|
||||||
|
}
|
||||||
|
|
||||||
|
// Some basic validations.
|
||||||
|
if (pic == NULL) goto End;
|
||||||
|
if (info.width > WEBP_MAX_DIMENSION || info.height > WEBP_MAX_DIMENSION) {
|
||||||
|
fprintf(stderr, "Invalid %dx%d dimension for PNM\n",
|
||||||
|
info.width, info.height);
|
||||||
|
goto End;
|
||||||
|
}
|
||||||
|
|
||||||
|
pixel_bytes = (uint64_t)info.width * info.height * info.bytes_per_px;
|
||||||
|
if (data_size < offset + pixel_bytes) {
|
||||||
|
fprintf(stderr, "Truncated PNM file (P%d).\n", info.type);
|
||||||
|
goto End;
|
||||||
|
}
|
||||||
|
sample_size = (info.max_value > 255) ? 2 : 1;
|
||||||
|
// final depth
|
||||||
|
depth = (info.depth == 1 || info.depth == 3 || !keep_alpha) ? 3 : 4;
|
||||||
|
stride = depth * info.width;
|
||||||
|
if (stride != (size_t)stride ||
|
||||||
|
!ImgIoUtilCheckSizeArgumentsOverflow(stride, info.height)) {
|
||||||
|
goto End;
|
||||||
|
}
|
||||||
|
|
||||||
|
rgb = (uint8_t*)malloc((size_t)stride * info.height);
|
||||||
|
if (rgb == NULL) goto End;
|
||||||
|
|
||||||
|
// Convert input.
|
||||||
|
// We only optimize for the sample_size=1, max_value=255, depth=1 case.
|
||||||
|
tmp_rgb = rgb;
|
||||||
|
for (j = 0; j < info.height; ++j) {
|
||||||
|
const uint8_t* in = data + offset;
|
||||||
|
offset += info.bytes_per_px * info.width;
|
||||||
|
assert(offset <= data_size);
|
||||||
|
if (info.max_value == 255 && info.depth >= 3) {
|
||||||
|
// RGB or RGBA
|
||||||
|
if (info.depth == 3 || keep_alpha) {
|
||||||
|
memcpy(tmp_rgb, in, info.depth * info.width * sizeof(*in));
|
||||||
|
} else {
|
||||||
|
assert(info.depth == 4 && !keep_alpha);
|
||||||
|
for (i = 0; i < info.width; ++i) {
|
||||||
|
tmp_rgb[3 * i + 0] = in[4 * i + 0];
|
||||||
|
tmp_rgb[3 * i + 1] = in[4 * i + 1];
|
||||||
|
tmp_rgb[3 * i + 2] = in[4 * i + 2];
|
||||||
|
}
|
||||||
|
}
|
||||||
|
} else {
|
||||||
|
// Unoptimized case, we need to handle non-trivial operations:
|
||||||
|
// * convert 16b to 8b (if max_value > 255)
|
||||||
|
// * rescale to [0..255] range (if max_value != 255)
|
||||||
|
// * drop the alpha channel (if keep_alpha is false)
|
||||||
|
const uint32_t round = info.max_value / 2;
|
||||||
|
int k = 0;
|
||||||
|
for (i = 0; i < info.width * info.depth; ++i) {
|
||||||
|
uint32_t v = (sample_size == 2) ? 256u * in[2 * i + 0] + in[2 * i + 1]
|
||||||
|
: in[i];
|
||||||
|
if (info.max_value != 255) v = (v * 255u + round) / info.max_value;
|
||||||
|
if (v > 255u) v = 255u;
|
||||||
|
if (info.depth > 2) {
|
||||||
|
if (!keep_alpha && info.depth == 4 && (i % 4) == 3) {
|
||||||
|
// skip alpha
|
||||||
|
} else {
|
||||||
|
tmp_rgb[k] = v;
|
||||||
|
k += 1;
|
||||||
|
}
|
||||||
|
} else if (info.depth == 1 || (i % 2) == 0) {
|
||||||
|
tmp_rgb[k + 0] = tmp_rgb[k + 1] = tmp_rgb[k + 2] = v;
|
||||||
|
k += 3;
|
||||||
|
} else if (keep_alpha && info.depth == 2) {
|
||||||
|
tmp_rgb[k] = v;
|
||||||
|
k += 1;
|
||||||
|
} else {
|
||||||
|
// skip alpha
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
tmp_rgb += stride;
|
||||||
|
}
|
||||||
|
|
||||||
|
// WebP conversion.
|
||||||
|
pic->width = info.width;
|
||||||
|
pic->height = info.height;
|
||||||
|
ok = (depth == 4) ? WebPPictureImportRGBA(pic, rgb, (int)stride)
|
||||||
|
: WebPPictureImportRGB(pic, rgb, (int)stride);
|
||||||
|
if (!ok) goto End;
|
||||||
|
|
||||||
|
ok = 1;
|
||||||
|
End:
|
||||||
|
free((void*)rgb);
|
||||||
|
|
||||||
|
(void)metadata;
|
||||||
|
(void)keep_alpha;
|
||||||
|
return ok;
|
||||||
|
}
|
||||||
|
|
||||||
|
// -----------------------------------------------------------------------------
|
37
imageio/pnmdec.h
Normal file
37
imageio/pnmdec.h
Normal file
@ -0,0 +1,37 @@
|
|||||||
|
// Copyright 2017 Google Inc. All Rights Reserved.
|
||||||
|
//
|
||||||
|
// Use of this source code is governed by a BSD-style license
|
||||||
|
// that can be found in the COPYING file in the root of the source
|
||||||
|
// tree. An additional intellectual property rights grant can be found
|
||||||
|
// in the file PATENTS. All contributing project authors may
|
||||||
|
// be found in the AUTHORS file in the root of the source tree.
|
||||||
|
// -----------------------------------------------------------------------------
|
||||||
|
//
|
||||||
|
// partial PNM format decoder (ppm/pgm)
|
||||||
|
|
||||||
|
#ifndef WEBP_IMAGEIO_PNMDEC_H_
|
||||||
|
#define WEBP_IMAGEIO_PNMDEC_H_
|
||||||
|
|
||||||
|
#include "webp/types.h"
|
||||||
|
|
||||||
|
#ifdef __cplusplus
|
||||||
|
extern "C" {
|
||||||
|
#endif
|
||||||
|
|
||||||
|
struct Metadata;
|
||||||
|
struct WebPPicture;
|
||||||
|
|
||||||
|
// Reads a PNM file from 'data', returning the decoded output in 'pic'.
|
||||||
|
// The output is RGB or YUV depending on pic->use_argb value.
|
||||||
|
// Returns true on success.
|
||||||
|
// 'metadata' has no effect, but is kept for coherence with other signatures
|
||||||
|
// for image readers.
|
||||||
|
int ReadPNM(const uint8_t* const data, size_t data_size,
|
||||||
|
struct WebPPicture* const pic, int keep_alpha,
|
||||||
|
struct Metadata* const metadata);
|
||||||
|
|
||||||
|
#ifdef __cplusplus
|
||||||
|
} // extern "C"
|
||||||
|
#endif
|
||||||
|
|
||||||
|
#endif // WEBP_IMAGEIO_PNMDEC_H_
|
293
imageio/tiffdec.c
Normal file
293
imageio/tiffdec.c
Normal file
@ -0,0 +1,293 @@
|
|||||||
|
// Copyright 2012 Google Inc. All Rights Reserved.
|
||||||
|
//
|
||||||
|
// Use of this source code is governed by a BSD-style license
|
||||||
|
// that can be found in the COPYING file in the root of the source
|
||||||
|
// tree. An additional intellectual property rights grant can be found
|
||||||
|
// in the file PATENTS. All contributing project authors may
|
||||||
|
// be found in the AUTHORS file in the root of the source tree.
|
||||||
|
// -----------------------------------------------------------------------------
|
||||||
|
//
|
||||||
|
// TIFF decode.
|
||||||
|
|
||||||
|
#include "./tiffdec.h"
|
||||||
|
|
||||||
|
#ifdef HAVE_CONFIG_H
|
||||||
|
#include "webp/config.h"
|
||||||
|
#endif
|
||||||
|
|
||||||
|
#include <limits.h>
|
||||||
|
#include <stdio.h>
|
||||||
|
#include <string.h>
|
||||||
|
|
||||||
|
#ifdef WEBP_HAVE_TIFF
|
||||||
|
#include <tiffio.h>
|
||||||
|
|
||||||
|
#include "webp/encode.h"
|
||||||
|
#include "./imageio_util.h"
|
||||||
|
#include "./metadata.h"
|
||||||
|
|
||||||
|
static const struct {
|
||||||
|
ttag_t tag;
|
||||||
|
size_t storage_offset;
|
||||||
|
} kTIFFMetadataMap[] = {
|
||||||
|
{ TIFFTAG_ICCPROFILE, METADATA_OFFSET(iccp) },
|
||||||
|
{ TIFFTAG_XMLPACKET, METADATA_OFFSET(xmp) },
|
||||||
|
{ 0, 0 },
|
||||||
|
};
|
||||||
|
|
||||||
|
// Returns true on success. The caller must use MetadataFree() on 'metadata' in
|
||||||
|
// all cases.
|
||||||
|
static int ExtractMetadataFromTIFF(TIFF* const tif, Metadata* const metadata) {
|
||||||
|
int i;
|
||||||
|
toff_t exif_ifd_offset;
|
||||||
|
|
||||||
|
for (i = 0; kTIFFMetadataMap[i].tag != 0; ++i) {
|
||||||
|
MetadataPayload* const payload =
|
||||||
|
(MetadataPayload*)((uint8_t*)metadata +
|
||||||
|
kTIFFMetadataMap[i].storage_offset);
|
||||||
|
void* tag_data;
|
||||||
|
uint32_t tag_data_len;
|
||||||
|
|
||||||
|
if (TIFFGetField(tif, kTIFFMetadataMap[i].tag, &tag_data_len, &tag_data) &&
|
||||||
|
!MetadataCopy((const char*)tag_data, tag_data_len, payload)) {
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
// TODO(jzern): To extract the raw EXIF directory some parsing of it would be
|
||||||
|
// necessary to determine the overall size. In addition, value offsets in
|
||||||
|
// individual directory entries may need to be updated as, depending on the
|
||||||
|
// type, they are file based.
|
||||||
|
// Exif 2.2 Section 4.6.2 Tag Structure
|
||||||
|
// TIFF Revision 6.0 Part 1 Section 2 TIFF Structure #Image File Directory
|
||||||
|
if (TIFFGetField(tif, TIFFTAG_EXIFIFD, &exif_ifd_offset)) {
|
||||||
|
fprintf(stderr, "Warning: EXIF extraction from TIFF is unsupported.\n");
|
||||||
|
}
|
||||||
|
return 1;
|
||||||
|
}
|
||||||
|
|
||||||
|
// Ad-hoc structure to supply read-from-memory functionalities.
|
||||||
|
typedef struct {
|
||||||
|
const uint8_t* data;
|
||||||
|
toff_t size;
|
||||||
|
toff_t pos;
|
||||||
|
} MyData;
|
||||||
|
|
||||||
|
static int MyClose(thandle_t opaque) {
|
||||||
|
(void)opaque;
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
static toff_t MySize(thandle_t opaque) {
|
||||||
|
const MyData* const my_data = (MyData*)opaque;
|
||||||
|
return my_data->size;
|
||||||
|
}
|
||||||
|
|
||||||
|
static toff_t MySeek(thandle_t opaque, toff_t offset, int whence) {
|
||||||
|
MyData* const my_data = (MyData*)opaque;
|
||||||
|
offset += (whence == SEEK_CUR) ? my_data->pos
|
||||||
|
: (whence == SEEK_SET) ? 0
|
||||||
|
: my_data->size;
|
||||||
|
if (offset > my_data->size) return (toff_t)-1;
|
||||||
|
my_data->pos = offset;
|
||||||
|
return offset;
|
||||||
|
}
|
||||||
|
|
||||||
|
static int MyMapFile(thandle_t opaque, void** base, toff_t* size) {
|
||||||
|
(void)opaque;
|
||||||
|
(void)base;
|
||||||
|
(void)size;
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
static void MyUnmapFile(thandle_t opaque, void* base, toff_t size) {
|
||||||
|
(void)opaque;
|
||||||
|
(void)base;
|
||||||
|
(void)size;
|
||||||
|
}
|
||||||
|
|
||||||
|
static tsize_t MyRead(thandle_t opaque, void* dst, tsize_t size) {
|
||||||
|
MyData* const my_data = (MyData*)opaque;
|
||||||
|
if (my_data->pos + size > my_data->size) {
|
||||||
|
size = (tsize_t)(my_data->size - my_data->pos);
|
||||||
|
}
|
||||||
|
if (size > 0) {
|
||||||
|
memcpy(dst, my_data->data + my_data->pos, size);
|
||||||
|
my_data->pos += size;
|
||||||
|
}
|
||||||
|
return size;
|
||||||
|
}
|
||||||
|
|
||||||
|
// Unmultiply Argb data. Taken from dsp/alpha_processing
|
||||||
|
// (we don't want to force a dependency to a libdspdec library).
|
||||||
|
#define MFIX 24 // 24bit fixed-point arithmetic
|
||||||
|
#define HALF ((1u << MFIX) >> 1)
|
||||||
|
|
||||||
|
static uint32_t Unmult(uint8_t x, uint32_t mult) {
|
||||||
|
const uint32_t v = (x * mult + HALF) >> MFIX;
|
||||||
|
return (v > 255u) ? 255u : v;
|
||||||
|
}
|
||||||
|
|
||||||
|
static WEBP_INLINE uint32_t GetScale(uint32_t a) {
|
||||||
|
return (255u << MFIX) / a;
|
||||||
|
}
|
||||||
|
|
||||||
|
#undef MFIX
|
||||||
|
#undef HALF
|
||||||
|
|
||||||
|
static void MultARGBRow(uint8_t* ptr, int width) {
|
||||||
|
int x;
|
||||||
|
for (x = 0; x < width; ++x, ptr += 4) {
|
||||||
|
const uint32_t alpha = ptr[3];
|
||||||
|
if (alpha < 255) {
|
||||||
|
if (alpha == 0) { // alpha == 0
|
||||||
|
ptr[0] = ptr[1] = ptr[2] = 0;
|
||||||
|
} else {
|
||||||
|
const uint32_t scale = GetScale(alpha);
|
||||||
|
ptr[0] = Unmult(ptr[0], scale);
|
||||||
|
ptr[1] = Unmult(ptr[1], scale);
|
||||||
|
ptr[2] = Unmult(ptr[2], scale);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
int ReadTIFF(const uint8_t* const data, size_t data_size,
|
||||||
|
WebPPicture* const pic, int keep_alpha,
|
||||||
|
Metadata* const metadata) {
|
||||||
|
MyData my_data = { data, (toff_t)data_size, 0 };
|
||||||
|
TIFF* tif;
|
||||||
|
uint32_t image_width, image_height, tile_width, tile_height;
|
||||||
|
uint64_t stride;
|
||||||
|
uint16_t samples_per_px = 0;
|
||||||
|
uint16_t extra_samples = 0;
|
||||||
|
uint16_t* extra_samples_ptr = NULL;
|
||||||
|
uint32_t* raster;
|
||||||
|
int64_t alloc_size;
|
||||||
|
int ok = 0;
|
||||||
|
tdir_t dircount;
|
||||||
|
|
||||||
|
if (data == NULL || data_size == 0 || data_size > INT_MAX || pic == NULL) {
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
tif = TIFFClientOpen("Memory", "r", &my_data,
|
||||||
|
MyRead, MyRead, MySeek, MyClose,
|
||||||
|
MySize, MyMapFile, MyUnmapFile);
|
||||||
|
if (tif == NULL) {
|
||||||
|
fprintf(stderr, "Error! Cannot parse TIFF file\n");
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
dircount = TIFFNumberOfDirectories(tif);
|
||||||
|
if (dircount > 1) {
|
||||||
|
fprintf(stderr, "Warning: multi-directory TIFF files are not supported.\n"
|
||||||
|
"Only the first will be used, %d will be ignored.\n",
|
||||||
|
dircount - 1);
|
||||||
|
}
|
||||||
|
if (!TIFFGetFieldDefaulted(tif, TIFFTAG_SAMPLESPERPIXEL, &samples_per_px)) {
|
||||||
|
fprintf(stderr, "Error! Cannot retrieve TIFF samples-per-pixel info.\n");
|
||||||
|
goto End;
|
||||||
|
}
|
||||||
|
if (!(samples_per_px == 1 || samples_per_px == 3 || samples_per_px == 4)) {
|
||||||
|
goto End; // not supported
|
||||||
|
}
|
||||||
|
|
||||||
|
if (!(TIFFGetField(tif, TIFFTAG_IMAGEWIDTH, &image_width) &&
|
||||||
|
TIFFGetField(tif, TIFFTAG_IMAGELENGTH, &image_height))) {
|
||||||
|
fprintf(stderr, "Error! Cannot retrieve TIFF image dimensions.\n");
|
||||||
|
goto End;
|
||||||
|
}
|
||||||
|
stride = (uint64_t)image_width * sizeof(*raster);
|
||||||
|
if (!ImgIoUtilCheckSizeArgumentsOverflow(stride, image_height)) {
|
||||||
|
fprintf(stderr, "Error! TIFF image dimension (%d x %d) is too large.\n",
|
||||||
|
image_width, image_height);
|
||||||
|
goto End;
|
||||||
|
}
|
||||||
|
|
||||||
|
// According to spec, a tile can be bigger than the image. However it should
|
||||||
|
// be a multiple of 16 and not way too large, so check that it's not more
|
||||||
|
// than twice the image size, for dimensions above some arbitrary minimum
|
||||||
|
// 32. We also check that they respect WebP's dimension and memory limit.
|
||||||
|
// Note that a tile can be 6byte/px in some cases. Here we assume
|
||||||
|
// 4byte/px with sizeof(*raster), to be conservative.
|
||||||
|
if (TIFFGetField(tif, TIFFTAG_TILEWIDTH, &tile_width) &&
|
||||||
|
TIFFGetField(tif, TIFFTAG_TILELENGTH, &tile_height)) {
|
||||||
|
if ((tile_width > 32 && tile_width / 2 > image_width) ||
|
||||||
|
(tile_height > 32 && tile_height / 2 > image_height) ||
|
||||||
|
!ImgIoUtilCheckSizeArgumentsOverflow(
|
||||||
|
(uint64_t)tile_width * sizeof(*raster), tile_height)) {
|
||||||
|
fprintf(stderr, "Error! TIFF tile dimension (%d x %d) is too large.\n",
|
||||||
|
tile_width, tile_height);
|
||||||
|
goto End;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
if (samples_per_px > 3 && !TIFFGetField(tif, TIFFTAG_EXTRASAMPLES,
|
||||||
|
&extra_samples, &extra_samples_ptr)) {
|
||||||
|
fprintf(stderr, "Error! Cannot retrieve TIFF ExtraSamples info.\n");
|
||||||
|
goto End;
|
||||||
|
}
|
||||||
|
|
||||||
|
// _Tiffmalloc uses a signed type for size.
|
||||||
|
alloc_size = (int64_t)(stride * image_height);
|
||||||
|
if (alloc_size < 0 || alloc_size != (tsize_t)alloc_size) goto End;
|
||||||
|
|
||||||
|
raster = (uint32_t*)_TIFFmalloc((tsize_t)alloc_size);
|
||||||
|
if (raster != NULL) {
|
||||||
|
if (TIFFReadRGBAImageOriented(tif, image_width, image_height, raster,
|
||||||
|
ORIENTATION_TOPLEFT, 1)) {
|
||||||
|
pic->width = image_width;
|
||||||
|
pic->height = image_height;
|
||||||
|
// TIFF data is ABGR
|
||||||
|
#ifdef WORDS_BIGENDIAN
|
||||||
|
TIFFSwabArrayOfLong(raster, image_width * image_height);
|
||||||
|
#endif
|
||||||
|
// if we have an alpha channel, we must un-multiply from rgbA to RGBA
|
||||||
|
if (extra_samples == 1 && extra_samples_ptr != NULL &&
|
||||||
|
extra_samples_ptr[0] == EXTRASAMPLE_ASSOCALPHA) {
|
||||||
|
uint32_t y;
|
||||||
|
uint8_t* tmp = (uint8_t*)raster;
|
||||||
|
for (y = 0; y < image_height; ++y) {
|
||||||
|
MultARGBRow(tmp, image_width);
|
||||||
|
tmp += stride;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
ok = keep_alpha
|
||||||
|
? WebPPictureImportRGBA(pic, (const uint8_t*)raster, (int)stride)
|
||||||
|
: WebPPictureImportRGBX(pic, (const uint8_t*)raster, (int)stride);
|
||||||
|
}
|
||||||
|
_TIFFfree(raster);
|
||||||
|
} else {
|
||||||
|
fprintf(stderr, "Error allocating TIFF RGBA memory!\n");
|
||||||
|
}
|
||||||
|
|
||||||
|
if (ok) {
|
||||||
|
if (metadata != NULL) {
|
||||||
|
ok = ExtractMetadataFromTIFF(tif, metadata);
|
||||||
|
if (!ok) {
|
||||||
|
fprintf(stderr, "Error extracting TIFF metadata!\n");
|
||||||
|
MetadataFree(metadata);
|
||||||
|
WebPPictureFree(pic);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
End:
|
||||||
|
TIFFClose(tif);
|
||||||
|
return ok;
|
||||||
|
}
|
||||||
|
#else // !WEBP_HAVE_TIFF
|
||||||
|
int ReadTIFF(const uint8_t* const data, size_t data_size,
|
||||||
|
struct WebPPicture* const pic, int keep_alpha,
|
||||||
|
struct Metadata* const metadata) {
|
||||||
|
(void)data;
|
||||||
|
(void)data_size;
|
||||||
|
(void)pic;
|
||||||
|
(void)keep_alpha;
|
||||||
|
(void)metadata;
|
||||||
|
fprintf(stderr, "TIFF support not compiled. Please install the libtiff "
|
||||||
|
"development package before building.\n");
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
#endif // WEBP_HAVE_TIFF
|
||||||
|
|
||||||
|
// -----------------------------------------------------------------------------
|
37
imageio/tiffdec.h
Normal file
37
imageio/tiffdec.h
Normal file
@ -0,0 +1,37 @@
|
|||||||
|
// Copyright 2012 Google Inc. All Rights Reserved.
|
||||||
|
//
|
||||||
|
// Use of this source code is governed by a BSD-style license
|
||||||
|
// that can be found in the COPYING file in the root of the source
|
||||||
|
// tree. An additional intellectual property rights grant can be found
|
||||||
|
// in the file PATENTS. All contributing project authors may
|
||||||
|
// be found in the AUTHORS file in the root of the source tree.
|
||||||
|
// -----------------------------------------------------------------------------
|
||||||
|
//
|
||||||
|
// TIFF decode.
|
||||||
|
|
||||||
|
#ifndef WEBP_IMAGEIO_TIFFDEC_H_
|
||||||
|
#define WEBP_IMAGEIO_TIFFDEC_H_
|
||||||
|
|
||||||
|
#include "webp/types.h"
|
||||||
|
|
||||||
|
#ifdef __cplusplus
|
||||||
|
extern "C" {
|
||||||
|
#endif
|
||||||
|
|
||||||
|
struct Metadata;
|
||||||
|
struct WebPPicture;
|
||||||
|
|
||||||
|
// Reads a TIFF from 'data', returning the decoded output in 'pic'.
|
||||||
|
// Output is RGBA or YUVA, depending on pic->use_argb value.
|
||||||
|
// If 'keep_alpha' is true and the TIFF has an alpha channel, the output is RGBA
|
||||||
|
// or YUVA. Otherwise, alpha channel is dropped and output is RGB or YUV.
|
||||||
|
// Returns true on success.
|
||||||
|
int ReadTIFF(const uint8_t* const data, size_t data_size,
|
||||||
|
struct WebPPicture* const pic, int keep_alpha,
|
||||||
|
struct Metadata* const metadata);
|
||||||
|
|
||||||
|
#ifdef __cplusplus
|
||||||
|
} // extern "C"
|
||||||
|
#endif
|
||||||
|
|
||||||
|
#endif // WEBP_IMAGEIO_TIFFDEC_H_
|
244
imageio/webpdec.c
Normal file
244
imageio/webpdec.c
Normal file
@ -0,0 +1,244 @@
|
|||||||
|
// Copyright 2014 Google Inc. All Rights Reserved.
|
||||||
|
//
|
||||||
|
// Use of this source code is governed by a BSD-style license
|
||||||
|
// that can be found in the COPYING file in the root of the source
|
||||||
|
// tree. An additional intellectual property rights grant can be found
|
||||||
|
// in the file PATENTS. All contributing project authors may
|
||||||
|
// be found in the AUTHORS file in the root of the source tree.
|
||||||
|
// -----------------------------------------------------------------------------
|
||||||
|
//
|
||||||
|
// WebP decode.
|
||||||
|
|
||||||
|
#ifdef HAVE_CONFIG_H
|
||||||
|
#include "webp/config.h"
|
||||||
|
#endif
|
||||||
|
|
||||||
|
#include "./webpdec.h"
|
||||||
|
|
||||||
|
#include <assert.h>
|
||||||
|
#include <stdio.h>
|
||||||
|
#include <stdlib.h>
|
||||||
|
|
||||||
|
#include "webp/decode.h"
|
||||||
|
#include "webp/demux.h"
|
||||||
|
#include "webp/encode.h"
|
||||||
|
#include "../examples/unicode.h"
|
||||||
|
#include "./imageio_util.h"
|
||||||
|
#include "./metadata.h"
|
||||||
|
|
||||||
|
//------------------------------------------------------------------------------
|
||||||
|
// WebP decoding
|
||||||
|
|
||||||
|
static const char* const kStatusMessages[VP8_STATUS_NOT_ENOUGH_DATA + 1] = {
|
||||||
|
"OK", "OUT_OF_MEMORY", "INVALID_PARAM", "BITSTREAM_ERROR",
|
||||||
|
"UNSUPPORTED_FEATURE", "SUSPENDED", "USER_ABORT", "NOT_ENOUGH_DATA"
|
||||||
|
};
|
||||||
|
|
||||||
|
static void PrintAnimationWarning(const WebPDecoderConfig* const config) {
|
||||||
|
if (config->input.has_animation) {
|
||||||
|
fprintf(stderr,
|
||||||
|
"Error! Decoding of an animated WebP file is not supported.\n"
|
||||||
|
" Use webpmux to extract the individual frames or\n"
|
||||||
|
" vwebp to view this image.\n");
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
void PrintWebPError(const char* const in_file, int status) {
|
||||||
|
WFPRINTF(stderr, "Decoding of %s failed.\n", (const W_CHAR*)in_file);
|
||||||
|
fprintf(stderr, "Status: %d", status);
|
||||||
|
if (status >= VP8_STATUS_OK && status <= VP8_STATUS_NOT_ENOUGH_DATA) {
|
||||||
|
fprintf(stderr, "(%s)", kStatusMessages[status]);
|
||||||
|
}
|
||||||
|
fprintf(stderr, "\n");
|
||||||
|
}
|
||||||
|
|
||||||
|
int LoadWebP(const char* const in_file,
|
||||||
|
const uint8_t** data, size_t* data_size,
|
||||||
|
WebPBitstreamFeatures* bitstream) {
|
||||||
|
VP8StatusCode status;
|
||||||
|
WebPBitstreamFeatures local_features;
|
||||||
|
if (!ImgIoUtilReadFile(in_file, data, data_size)) return 0;
|
||||||
|
|
||||||
|
if (bitstream == NULL) {
|
||||||
|
bitstream = &local_features;
|
||||||
|
}
|
||||||
|
|
||||||
|
status = WebPGetFeatures(*data, *data_size, bitstream);
|
||||||
|
if (status != VP8_STATUS_OK) {
|
||||||
|
WebPFree((void*)*data);
|
||||||
|
*data = NULL;
|
||||||
|
*data_size = 0;
|
||||||
|
PrintWebPError(in_file, status);
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
return 1;
|
||||||
|
}
|
||||||
|
|
||||||
|
//------------------------------------------------------------------------------
|
||||||
|
|
||||||
|
VP8StatusCode DecodeWebP(const uint8_t* const data, size_t data_size,
|
||||||
|
WebPDecoderConfig* const config) {
|
||||||
|
if (config == NULL) return VP8_STATUS_INVALID_PARAM;
|
||||||
|
PrintAnimationWarning(config);
|
||||||
|
return WebPDecode(data, data_size, config);
|
||||||
|
}
|
||||||
|
|
||||||
|
VP8StatusCode DecodeWebPIncremental(
|
||||||
|
const uint8_t* const data, size_t data_size,
|
||||||
|
WebPDecoderConfig* const config) {
|
||||||
|
VP8StatusCode status = VP8_STATUS_OK;
|
||||||
|
if (config == NULL) return VP8_STATUS_INVALID_PARAM;
|
||||||
|
|
||||||
|
PrintAnimationWarning(config);
|
||||||
|
|
||||||
|
// Decoding call.
|
||||||
|
{
|
||||||
|
WebPIDecoder* const idec = WebPIDecode(data, data_size, config);
|
||||||
|
if (idec == NULL) {
|
||||||
|
fprintf(stderr, "Failed during WebPIDecode().\n");
|
||||||
|
return VP8_STATUS_OUT_OF_MEMORY;
|
||||||
|
} else {
|
||||||
|
status = WebPIUpdate(idec, data, data_size);
|
||||||
|
WebPIDelete(idec);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
return status;
|
||||||
|
}
|
||||||
|
|
||||||
|
// -----------------------------------------------------------------------------
|
||||||
|
// Metadata
|
||||||
|
|
||||||
|
static int ExtractMetadata(const uint8_t* const data, size_t data_size,
|
||||||
|
Metadata* const metadata) {
|
||||||
|
WebPData webp_data = { data, data_size };
|
||||||
|
WebPDemuxer* const demux = WebPDemux(&webp_data);
|
||||||
|
WebPChunkIterator chunk_iter;
|
||||||
|
uint32_t flags;
|
||||||
|
|
||||||
|
if (demux == NULL) return 0;
|
||||||
|
assert(metadata != NULL);
|
||||||
|
|
||||||
|
flags = WebPDemuxGetI(demux, WEBP_FF_FORMAT_FLAGS);
|
||||||
|
|
||||||
|
if ((flags & ICCP_FLAG) && WebPDemuxGetChunk(demux, "ICCP", 1, &chunk_iter)) {
|
||||||
|
MetadataCopy((const char*)chunk_iter.chunk.bytes, chunk_iter.chunk.size,
|
||||||
|
&metadata->iccp);
|
||||||
|
WebPDemuxReleaseChunkIterator(&chunk_iter);
|
||||||
|
}
|
||||||
|
if ((flags & EXIF_FLAG) && WebPDemuxGetChunk(demux, "EXIF", 1, &chunk_iter)) {
|
||||||
|
MetadataCopy((const char*)chunk_iter.chunk.bytes, chunk_iter.chunk.size,
|
||||||
|
&metadata->exif);
|
||||||
|
WebPDemuxReleaseChunkIterator(&chunk_iter);
|
||||||
|
}
|
||||||
|
if ((flags & XMP_FLAG) && WebPDemuxGetChunk(demux, "XMP ", 1, &chunk_iter)) {
|
||||||
|
MetadataCopy((const char*)chunk_iter.chunk.bytes, chunk_iter.chunk.size,
|
||||||
|
&metadata->xmp);
|
||||||
|
WebPDemuxReleaseChunkIterator(&chunk_iter);
|
||||||
|
}
|
||||||
|
WebPDemuxDelete(demux);
|
||||||
|
return 1;
|
||||||
|
}
|
||||||
|
|
||||||
|
// -----------------------------------------------------------------------------
|
||||||
|
|
||||||
|
int ReadWebP(const uint8_t* const data, size_t data_size,
|
||||||
|
WebPPicture* const pic,
|
||||||
|
int keep_alpha, Metadata* const metadata) {
|
||||||
|
int ok = 0;
|
||||||
|
VP8StatusCode status = VP8_STATUS_OK;
|
||||||
|
WebPDecoderConfig config;
|
||||||
|
WebPDecBuffer* const output_buffer = &config.output;
|
||||||
|
WebPBitstreamFeatures* const bitstream = &config.input;
|
||||||
|
|
||||||
|
if (data == NULL || data_size == 0 || pic == NULL) return 0;
|
||||||
|
|
||||||
|
if (!WebPInitDecoderConfig(&config)) {
|
||||||
|
fprintf(stderr, "Library version mismatch!\n");
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
status = WebPGetFeatures(data, data_size, bitstream);
|
||||||
|
if (status != VP8_STATUS_OK) {
|
||||||
|
PrintWebPError("input data", status);
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
do {
|
||||||
|
const int has_alpha = keep_alpha && bitstream->has_alpha;
|
||||||
|
uint64_t stride;
|
||||||
|
pic->width = bitstream->width;
|
||||||
|
pic->height = bitstream->height;
|
||||||
|
if (pic->use_argb) {
|
||||||
|
stride = (uint64_t)bitstream->width * 4;
|
||||||
|
} else {
|
||||||
|
stride = (uint64_t)bitstream->width * (has_alpha ? 5 : 3) / 2;
|
||||||
|
pic->colorspace = has_alpha ? WEBP_YUV420A : WEBP_YUV420;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (!ImgIoUtilCheckSizeArgumentsOverflow(stride, bitstream->height)) {
|
||||||
|
status = VP8_STATUS_OUT_OF_MEMORY;
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
|
||||||
|
ok = WebPPictureAlloc(pic);
|
||||||
|
if (!ok) {
|
||||||
|
status = VP8_STATUS_OUT_OF_MEMORY;
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
if (pic->use_argb) {
|
||||||
|
#ifdef WORDS_BIGENDIAN
|
||||||
|
output_buffer->colorspace = MODE_ARGB;
|
||||||
|
#else
|
||||||
|
output_buffer->colorspace = MODE_BGRA;
|
||||||
|
#endif
|
||||||
|
output_buffer->u.RGBA.rgba = (uint8_t*)pic->argb;
|
||||||
|
output_buffer->u.RGBA.stride = pic->argb_stride * sizeof(uint32_t);
|
||||||
|
output_buffer->u.RGBA.size = output_buffer->u.RGBA.stride * pic->height;
|
||||||
|
} else {
|
||||||
|
output_buffer->colorspace = has_alpha ? MODE_YUVA : MODE_YUV;
|
||||||
|
output_buffer->u.YUVA.y = pic->y;
|
||||||
|
output_buffer->u.YUVA.u = pic->u;
|
||||||
|
output_buffer->u.YUVA.v = pic->v;
|
||||||
|
output_buffer->u.YUVA.a = has_alpha ? pic->a : NULL;
|
||||||
|
output_buffer->u.YUVA.y_stride = pic->y_stride;
|
||||||
|
output_buffer->u.YUVA.u_stride = pic->uv_stride;
|
||||||
|
output_buffer->u.YUVA.v_stride = pic->uv_stride;
|
||||||
|
output_buffer->u.YUVA.a_stride = has_alpha ? pic->a_stride : 0;
|
||||||
|
output_buffer->u.YUVA.y_size = pic->height * pic->y_stride;
|
||||||
|
output_buffer->u.YUVA.u_size = (pic->height + 1) / 2 * pic->uv_stride;
|
||||||
|
output_buffer->u.YUVA.v_size = (pic->height + 1) / 2 * pic->uv_stride;
|
||||||
|
output_buffer->u.YUVA.a_size = pic->height * pic->a_stride;
|
||||||
|
}
|
||||||
|
output_buffer->is_external_memory = 1;
|
||||||
|
|
||||||
|
status = DecodeWebP(data, data_size, &config);
|
||||||
|
ok = (status == VP8_STATUS_OK);
|
||||||
|
if (ok && !keep_alpha && pic->use_argb) {
|
||||||
|
// Need to wipe out the alpha value, as requested.
|
||||||
|
int x, y;
|
||||||
|
uint32_t* argb = pic->argb;
|
||||||
|
for (y = 0; y < pic->height; ++y) {
|
||||||
|
for (x = 0; x < pic->width; ++x) argb[x] |= 0xff000000u;
|
||||||
|
argb += pic->argb_stride;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
} while (0); // <- so we can 'break' out of the loop
|
||||||
|
|
||||||
|
if (status != VP8_STATUS_OK) {
|
||||||
|
PrintWebPError("input data", status);
|
||||||
|
ok = 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
WebPFreeDecBuffer(output_buffer);
|
||||||
|
|
||||||
|
if (ok && metadata != NULL) {
|
||||||
|
ok = ExtractMetadata(data, data_size, metadata);
|
||||||
|
if (!ok) {
|
||||||
|
PrintWebPError("metadata", VP8_STATUS_BITSTREAM_ERROR);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
if (!ok) WebPPictureFree(pic);
|
||||||
|
return ok;
|
||||||
|
}
|
||||||
|
|
||||||
|
// -----------------------------------------------------------------------------
|
67
imageio/webpdec.h
Normal file
67
imageio/webpdec.h
Normal file
@ -0,0 +1,67 @@
|
|||||||
|
// Copyright 2014 Google Inc. All Rights Reserved.
|
||||||
|
//
|
||||||
|
// Use of this source code is governed by a BSD-style license
|
||||||
|
// that can be found in the COPYING file in the root of the source
|
||||||
|
// tree. An additional intellectual property rights grant can be found
|
||||||
|
// in the file PATENTS. All contributing project authors may
|
||||||
|
// be found in the AUTHORS file in the root of the source tree.
|
||||||
|
// -----------------------------------------------------------------------------
|
||||||
|
//
|
||||||
|
// WebP decode.
|
||||||
|
|
||||||
|
#ifndef WEBP_IMAGEIO_WEBPDEC_H_
|
||||||
|
#define WEBP_IMAGEIO_WEBPDEC_H_
|
||||||
|
|
||||||
|
#include "webp/decode.h"
|
||||||
|
|
||||||
|
#ifdef __cplusplus
|
||||||
|
extern "C" {
|
||||||
|
#endif
|
||||||
|
|
||||||
|
struct Metadata;
|
||||||
|
struct WebPPicture;
|
||||||
|
|
||||||
|
//------------------------------------------------------------------------------
|
||||||
|
// WebP decoding
|
||||||
|
|
||||||
|
// Prints an informative error message regarding decode failure of 'in_file'.
|
||||||
|
// 'status' is treated as a VP8StatusCode and if valid will be printed as a
|
||||||
|
// text string.
|
||||||
|
void PrintWebPError(const char* const in_file, int status);
|
||||||
|
|
||||||
|
// Reads a WebP from 'in_file', returning the contents and size in 'data' and
|
||||||
|
// 'data_size'. If not NULL, 'bitstream' is populated using WebPGetFeatures().
|
||||||
|
// Returns true on success.
|
||||||
|
int LoadWebP(const char* const in_file,
|
||||||
|
const uint8_t** data, size_t* data_size,
|
||||||
|
WebPBitstreamFeatures* bitstream);
|
||||||
|
|
||||||
|
// Decodes the WebP contained in 'data'.
|
||||||
|
// 'config' is a structure previously initialized by WebPInitDecoderConfig().
|
||||||
|
// 'config->output' should have the desired colorspace selected.
|
||||||
|
// Returns the decoder status. On success 'config->output' will contain the
|
||||||
|
// decoded picture.
|
||||||
|
VP8StatusCode DecodeWebP(const uint8_t* const data, size_t data_size,
|
||||||
|
WebPDecoderConfig* const config);
|
||||||
|
|
||||||
|
// Same as DecodeWebP(), but using the incremental decoder.
|
||||||
|
VP8StatusCode DecodeWebPIncremental(
|
||||||
|
const uint8_t* const data, size_t data_size,
|
||||||
|
WebPDecoderConfig* const config);
|
||||||
|
|
||||||
|
//------------------------------------------------------------------------------
|
||||||
|
|
||||||
|
// Decodes a WebP contained in 'data', returning the decoded output in 'pic'.
|
||||||
|
// Output is RGBA or YUVA, depending on pic->use_argb value.
|
||||||
|
// If 'keep_alpha' is true and the WebP has an alpha channel, the output is RGBA
|
||||||
|
// or YUVA. Otherwise, alpha channel is dropped and output is RGB or YUV.
|
||||||
|
// Returns true on success.
|
||||||
|
int ReadWebP(const uint8_t* const data, size_t data_size,
|
||||||
|
struct WebPPicture* const pic,
|
||||||
|
int keep_alpha, struct Metadata* const metadata);
|
||||||
|
|
||||||
|
#ifdef __cplusplus
|
||||||
|
} // extern "C"
|
||||||
|
#endif
|
||||||
|
|
||||||
|
#endif // WEBP_IMAGEIO_WEBPDEC_H_
|
413
imageio/wicdec.c
Normal file
413
imageio/wicdec.c
Normal file
@ -0,0 +1,413 @@
|
|||||||
|
// Copyright 2013 Google Inc. All Rights Reserved.
|
||||||
|
//
|
||||||
|
// Use of this source code is governed by a BSD-style license
|
||||||
|
// that can be found in the COPYING file in the root of the source
|
||||||
|
// tree. An additional intellectual property rights grant can be found
|
||||||
|
// in the file PATENTS. All contributing project authors may
|
||||||
|
// be found in the AUTHORS file in the root of the source tree.
|
||||||
|
// -----------------------------------------------------------------------------
|
||||||
|
//
|
||||||
|
// Windows Imaging Component (WIC) decode.
|
||||||
|
|
||||||
|
#include "./wicdec.h"
|
||||||
|
|
||||||
|
#ifdef HAVE_CONFIG_H
|
||||||
|
#include "webp/config.h"
|
||||||
|
#endif
|
||||||
|
|
||||||
|
#include <assert.h>
|
||||||
|
#include <stdio.h>
|
||||||
|
#include <string.h>
|
||||||
|
|
||||||
|
#ifdef HAVE_WINCODEC_H
|
||||||
|
#ifdef __MINGW32__
|
||||||
|
#define INITGUID // Without this GUIDs are declared extern and fail to link
|
||||||
|
#endif
|
||||||
|
#define CINTERFACE
|
||||||
|
#define COBJMACROS
|
||||||
|
#define _WIN32_IE 0x500 // Workaround bug in shlwapi.h when compiling C++
|
||||||
|
// code with COBJMACROS.
|
||||||
|
#include <ole2.h> // CreateStreamOnHGlobal()
|
||||||
|
#include <shlwapi.h>
|
||||||
|
#include <tchar.h>
|
||||||
|
#include <windows.h>
|
||||||
|
#include <wincodec.h>
|
||||||
|
|
||||||
|
#include "../examples/unicode.h"
|
||||||
|
#include "./imageio_util.h"
|
||||||
|
#include "./metadata.h"
|
||||||
|
#include "webp/encode.h"
|
||||||
|
|
||||||
|
#define IFS(fn) \
|
||||||
|
do { \
|
||||||
|
if (SUCCEEDED(hr)) { \
|
||||||
|
hr = (fn); \
|
||||||
|
if (FAILED(hr)) fprintf(stderr, #fn " failed %08lx\n", hr); \
|
||||||
|
} \
|
||||||
|
} while (0)
|
||||||
|
|
||||||
|
// modified version of DEFINE_GUID from guiddef.h.
|
||||||
|
#define WEBP_DEFINE_GUID(name, l, w1, w2, b1, b2, b3, b4, b5, b6, b7, b8) \
|
||||||
|
static const GUID name = \
|
||||||
|
{ l, w1, w2, { b1, b2, b3, b4, b5, b6, b7, b8 } }
|
||||||
|
|
||||||
|
#ifdef __cplusplus
|
||||||
|
#define MAKE_REFGUID(x) (x)
|
||||||
|
#else
|
||||||
|
#define MAKE_REFGUID(x) &(x)
|
||||||
|
#endif
|
||||||
|
|
||||||
|
typedef struct WICFormatImporter {
|
||||||
|
const GUID* pixel_format;
|
||||||
|
int bytes_per_pixel;
|
||||||
|
int (*import)(WebPPicture* const, const uint8_t* const, int);
|
||||||
|
} WICFormatImporter;
|
||||||
|
|
||||||
|
// From Microsoft SDK 7.0a -- wincodec.h
|
||||||
|
// Create local copies for compatibility when building against earlier
|
||||||
|
// versions of the SDK.
|
||||||
|
WEBP_DEFINE_GUID(GUID_WICPixelFormat24bppBGR_,
|
||||||
|
0x6fddc324, 0x4e03, 0x4bfe,
|
||||||
|
0xb1, 0x85, 0x3d, 0x77, 0x76, 0x8d, 0xc9, 0x0c);
|
||||||
|
WEBP_DEFINE_GUID(GUID_WICPixelFormat24bppRGB_,
|
||||||
|
0x6fddc324, 0x4e03, 0x4bfe,
|
||||||
|
0xb1, 0x85, 0x3d, 0x77, 0x76, 0x8d, 0xc9, 0x0d);
|
||||||
|
WEBP_DEFINE_GUID(GUID_WICPixelFormat32bppBGRA_,
|
||||||
|
0x6fddc324, 0x4e03, 0x4bfe,
|
||||||
|
0xb1, 0x85, 0x3d, 0x77, 0x76, 0x8d, 0xc9, 0x0f);
|
||||||
|
WEBP_DEFINE_GUID(GUID_WICPixelFormat32bppRGBA_,
|
||||||
|
0xf5c7ad2d, 0x6a8d, 0x43dd,
|
||||||
|
0xa7, 0xa8, 0xa2, 0x99, 0x35, 0x26, 0x1a, 0xe9);
|
||||||
|
WEBP_DEFINE_GUID(GUID_WICPixelFormat64bppBGRA_,
|
||||||
|
0x1562ff7c, 0xd352, 0x46f9,
|
||||||
|
0x97, 0x9e, 0x42, 0x97, 0x6b, 0x79, 0x22, 0x46);
|
||||||
|
WEBP_DEFINE_GUID(GUID_WICPixelFormat64bppRGBA_,
|
||||||
|
0x6fddc324, 0x4e03, 0x4bfe,
|
||||||
|
0xb1, 0x85, 0x3d, 0x77, 0x76, 0x8d, 0xc9, 0x16);
|
||||||
|
|
||||||
|
static HRESULT OpenInputStream(const char* filename, IStream** stream) {
|
||||||
|
HRESULT hr = S_OK;
|
||||||
|
if (!WSTRCMP(filename, "-")) {
|
||||||
|
const uint8_t* data = NULL;
|
||||||
|
size_t data_size = 0;
|
||||||
|
const int ok = ImgIoUtilReadFile(filename, &data, &data_size);
|
||||||
|
if (ok) {
|
||||||
|
HGLOBAL image = GlobalAlloc(GMEM_MOVEABLE, data_size);
|
||||||
|
if (image != NULL) {
|
||||||
|
void* const image_mem = GlobalLock(image);
|
||||||
|
if (image_mem != NULL) {
|
||||||
|
memcpy(image_mem, data, data_size);
|
||||||
|
GlobalUnlock(image);
|
||||||
|
IFS(CreateStreamOnHGlobal(image, TRUE, stream));
|
||||||
|
} else {
|
||||||
|
hr = E_FAIL;
|
||||||
|
}
|
||||||
|
} else {
|
||||||
|
hr = E_OUTOFMEMORY;
|
||||||
|
}
|
||||||
|
free((void*)data);
|
||||||
|
} else {
|
||||||
|
hr = E_FAIL;
|
||||||
|
}
|
||||||
|
} else {
|
||||||
|
IFS(SHCreateStreamOnFile((const LPTSTR)filename, STGM_READ, stream));
|
||||||
|
}
|
||||||
|
|
||||||
|
if (FAILED(hr)) {
|
||||||
|
_ftprintf(stderr, _T("Error opening input file %s (%08lx)\n"),
|
||||||
|
(const LPTSTR)filename, hr);
|
||||||
|
}
|
||||||
|
return hr;
|
||||||
|
}
|
||||||
|
|
||||||
|
// -----------------------------------------------------------------------------
|
||||||
|
// Metadata processing
|
||||||
|
|
||||||
|
// Stores the first non-zero sized color profile from 'frame' to 'iccp'.
|
||||||
|
// Returns an HRESULT to indicate success or failure. The caller is responsible
|
||||||
|
// for freeing 'iccp->bytes' in either case.
|
||||||
|
static HRESULT ExtractICCP(IWICImagingFactory* const factory,
|
||||||
|
IWICBitmapFrameDecode* const frame,
|
||||||
|
MetadataPayload* const iccp) {
|
||||||
|
HRESULT hr = S_OK;
|
||||||
|
UINT i, count;
|
||||||
|
IWICColorContext** color_contexts;
|
||||||
|
|
||||||
|
IFS(IWICBitmapFrameDecode_GetColorContexts(frame, 0, NULL, &count));
|
||||||
|
if (FAILED(hr) || count == 0) {
|
||||||
|
// Treat unsupported operation as a non-fatal error. See crbug.com/webp/506.
|
||||||
|
return (hr == WINCODEC_ERR_UNSUPPORTEDOPERATION) ? S_OK : hr;
|
||||||
|
}
|
||||||
|
|
||||||
|
color_contexts = (IWICColorContext**)calloc(count, sizeof(*color_contexts));
|
||||||
|
if (color_contexts == NULL) return E_OUTOFMEMORY;
|
||||||
|
for (i = 0; SUCCEEDED(hr) && i < count; ++i) {
|
||||||
|
IFS(IWICImagingFactory_CreateColorContext(factory, &color_contexts[i]));
|
||||||
|
}
|
||||||
|
|
||||||
|
if (SUCCEEDED(hr)) {
|
||||||
|
UINT num_color_contexts;
|
||||||
|
IFS(IWICBitmapFrameDecode_GetColorContexts(frame,
|
||||||
|
count, color_contexts,
|
||||||
|
&num_color_contexts));
|
||||||
|
assert(FAILED(hr) || num_color_contexts <= count);
|
||||||
|
for (i = 0; SUCCEEDED(hr) && i < num_color_contexts; ++i) {
|
||||||
|
WICColorContextType type;
|
||||||
|
IFS(IWICColorContext_GetType(color_contexts[i], &type));
|
||||||
|
if (SUCCEEDED(hr) && type == WICColorContextProfile) {
|
||||||
|
UINT size;
|
||||||
|
IFS(IWICColorContext_GetProfileBytes(color_contexts[i],
|
||||||
|
0, NULL, &size));
|
||||||
|
if (SUCCEEDED(hr) && size > 0) {
|
||||||
|
iccp->bytes = (uint8_t*)malloc(size);
|
||||||
|
if (iccp->bytes == NULL) {
|
||||||
|
hr = E_OUTOFMEMORY;
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
iccp->size = size;
|
||||||
|
IFS(IWICColorContext_GetProfileBytes(color_contexts[i],
|
||||||
|
(UINT)iccp->size, iccp->bytes,
|
||||||
|
&size));
|
||||||
|
if (SUCCEEDED(hr) && size != iccp->size) {
|
||||||
|
fprintf(stderr, "Warning! ICC profile size (%u) != expected (%u)\n",
|
||||||
|
size, (uint32_t)iccp->size);
|
||||||
|
iccp->size = size;
|
||||||
|
}
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
for (i = 0; i < count; ++i) {
|
||||||
|
if (color_contexts[i] != NULL) IUnknown_Release(color_contexts[i]);
|
||||||
|
}
|
||||||
|
free(color_contexts);
|
||||||
|
return hr;
|
||||||
|
}
|
||||||
|
|
||||||
|
static HRESULT ExtractMetadata(IWICImagingFactory* const factory,
|
||||||
|
IWICBitmapFrameDecode* const frame,
|
||||||
|
Metadata* const metadata) {
|
||||||
|
// TODO(jzern): add XMP/EXIF extraction.
|
||||||
|
const HRESULT hr = ExtractICCP(factory, frame, &metadata->iccp);
|
||||||
|
if (FAILED(hr)) MetadataFree(metadata);
|
||||||
|
return hr;
|
||||||
|
}
|
||||||
|
|
||||||
|
// -----------------------------------------------------------------------------
|
||||||
|
|
||||||
|
static int HasPalette(GUID pixel_format) {
|
||||||
|
return (IsEqualGUID(MAKE_REFGUID(pixel_format),
|
||||||
|
MAKE_REFGUID(GUID_WICPixelFormat1bppIndexed)) ||
|
||||||
|
IsEqualGUID(MAKE_REFGUID(pixel_format),
|
||||||
|
MAKE_REFGUID(GUID_WICPixelFormat2bppIndexed)) ||
|
||||||
|
IsEqualGUID(MAKE_REFGUID(pixel_format),
|
||||||
|
MAKE_REFGUID(GUID_WICPixelFormat4bppIndexed)) ||
|
||||||
|
IsEqualGUID(MAKE_REFGUID(pixel_format),
|
||||||
|
MAKE_REFGUID(GUID_WICPixelFormat8bppIndexed)));
|
||||||
|
}
|
||||||
|
|
||||||
|
static int HasAlpha(IWICImagingFactory* const factory,
|
||||||
|
IWICBitmapDecoder* const decoder,
|
||||||
|
IWICBitmapFrameDecode* const frame,
|
||||||
|
GUID pixel_format) {
|
||||||
|
int has_alpha;
|
||||||
|
if (HasPalette(pixel_format)) {
|
||||||
|
IWICPalette* frame_palette = NULL;
|
||||||
|
IWICPalette* global_palette = NULL;
|
||||||
|
BOOL frame_palette_has_alpha = FALSE;
|
||||||
|
BOOL global_palette_has_alpha = FALSE;
|
||||||
|
|
||||||
|
// A palette may exist at the frame or container level,
|
||||||
|
// check IWICPalette::HasAlpha() for both if present.
|
||||||
|
if (SUCCEEDED(IWICImagingFactory_CreatePalette(factory, &frame_palette)) &&
|
||||||
|
SUCCEEDED(IWICBitmapFrameDecode_CopyPalette(frame, frame_palette))) {
|
||||||
|
IWICPalette_HasAlpha(frame_palette, &frame_palette_has_alpha);
|
||||||
|
}
|
||||||
|
if (SUCCEEDED(IWICImagingFactory_CreatePalette(factory, &global_palette)) &&
|
||||||
|
SUCCEEDED(IWICBitmapDecoder_CopyPalette(decoder, global_palette))) {
|
||||||
|
IWICPalette_HasAlpha(global_palette, &global_palette_has_alpha);
|
||||||
|
}
|
||||||
|
has_alpha = frame_palette_has_alpha || global_palette_has_alpha;
|
||||||
|
|
||||||
|
if (frame_palette != NULL) IUnknown_Release(frame_palette);
|
||||||
|
if (global_palette != NULL) IUnknown_Release(global_palette);
|
||||||
|
} else {
|
||||||
|
has_alpha = IsEqualGUID(MAKE_REFGUID(pixel_format),
|
||||||
|
MAKE_REFGUID(GUID_WICPixelFormat32bppRGBA_)) ||
|
||||||
|
IsEqualGUID(MAKE_REFGUID(pixel_format),
|
||||||
|
MAKE_REFGUID(GUID_WICPixelFormat32bppBGRA_)) ||
|
||||||
|
IsEqualGUID(MAKE_REFGUID(pixel_format),
|
||||||
|
MAKE_REFGUID(GUID_WICPixelFormat64bppRGBA_)) ||
|
||||||
|
IsEqualGUID(MAKE_REFGUID(pixel_format),
|
||||||
|
MAKE_REFGUID(GUID_WICPixelFormat64bppBGRA_));
|
||||||
|
}
|
||||||
|
return has_alpha;
|
||||||
|
}
|
||||||
|
|
||||||
|
int ReadPictureWithWIC(const char* const filename,
|
||||||
|
WebPPicture* const pic, int keep_alpha,
|
||||||
|
Metadata* const metadata) {
|
||||||
|
// From Microsoft SDK 6.0a -- ks.h
|
||||||
|
// Define a local copy to avoid link errors under mingw.
|
||||||
|
WEBP_DEFINE_GUID(GUID_NULL_, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0);
|
||||||
|
static const WICFormatImporter kAlphaFormatImporters[] = {
|
||||||
|
{ &GUID_WICPixelFormat32bppBGRA_, 4, WebPPictureImportBGRA },
|
||||||
|
{ &GUID_WICPixelFormat32bppRGBA_, 4, WebPPictureImportRGBA },
|
||||||
|
{ NULL, 0, NULL },
|
||||||
|
};
|
||||||
|
static const WICFormatImporter kNonAlphaFormatImporters[] = {
|
||||||
|
{ &GUID_WICPixelFormat24bppBGR_, 3, WebPPictureImportBGR },
|
||||||
|
{ &GUID_WICPixelFormat24bppRGB_, 3, WebPPictureImportRGB },
|
||||||
|
{ NULL, 0, NULL },
|
||||||
|
};
|
||||||
|
HRESULT hr = S_OK;
|
||||||
|
IWICBitmapFrameDecode* frame = NULL;
|
||||||
|
IWICFormatConverter* converter = NULL;
|
||||||
|
IWICImagingFactory* factory = NULL;
|
||||||
|
IWICBitmapDecoder* decoder = NULL;
|
||||||
|
IStream* stream = NULL;
|
||||||
|
UINT frame_count = 0;
|
||||||
|
UINT width = 0, height = 0;
|
||||||
|
BYTE* rgb = NULL;
|
||||||
|
WICPixelFormatGUID src_pixel_format = GUID_WICPixelFormatUndefined;
|
||||||
|
const WICFormatImporter* importer = NULL;
|
||||||
|
GUID src_container_format = GUID_NULL_;
|
||||||
|
// From Windows Kits\10\Include\10.0.19041.0\um\wincodec.h
|
||||||
|
WEBP_DEFINE_GUID(GUID_ContainerFormatWebp_,
|
||||||
|
0xe094b0e2, 0x67f2, 0x45b3,
|
||||||
|
0xb0, 0xea, 0x11, 0x53, 0x37, 0xca, 0x7c, 0xf3);
|
||||||
|
static const GUID* kAlphaContainers[] = {
|
||||||
|
&GUID_ContainerFormatBmp,
|
||||||
|
&GUID_ContainerFormatPng,
|
||||||
|
&GUID_ContainerFormatTiff,
|
||||||
|
&GUID_ContainerFormatWebp_,
|
||||||
|
NULL
|
||||||
|
};
|
||||||
|
int has_alpha = 0;
|
||||||
|
int64_t stride;
|
||||||
|
|
||||||
|
if (filename == NULL || pic == NULL) return 0;
|
||||||
|
|
||||||
|
IFS(CoInitialize(NULL));
|
||||||
|
IFS(CoCreateInstance(MAKE_REFGUID(CLSID_WICImagingFactory), NULL,
|
||||||
|
CLSCTX_INPROC_SERVER,
|
||||||
|
MAKE_REFGUID(IID_IWICImagingFactory),
|
||||||
|
(LPVOID*)&factory));
|
||||||
|
if (hr == REGDB_E_CLASSNOTREG) {
|
||||||
|
fprintf(stderr,
|
||||||
|
"Couldn't access Windows Imaging Component (are you running "
|
||||||
|
"Windows XP SP3 or newer?). Most formats not available. "
|
||||||
|
"Use -s for the available YUV input.\n");
|
||||||
|
}
|
||||||
|
// Prepare for image decoding.
|
||||||
|
IFS(OpenInputStream(filename, &stream));
|
||||||
|
IFS(IWICImagingFactory_CreateDecoderFromStream(
|
||||||
|
factory, stream, NULL,
|
||||||
|
WICDecodeMetadataCacheOnDemand, &decoder));
|
||||||
|
IFS(IWICBitmapDecoder_GetFrameCount(decoder, &frame_count));
|
||||||
|
if (SUCCEEDED(hr)) {
|
||||||
|
if (frame_count == 0) {
|
||||||
|
fprintf(stderr, "No frame found in input file.\n");
|
||||||
|
hr = E_FAIL;
|
||||||
|
} else if (frame_count > 1) {
|
||||||
|
// WIC will be tried before native WebP decoding so avoid duplicating the
|
||||||
|
// error message.
|
||||||
|
hr = E_FAIL;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
IFS(IWICBitmapDecoder_GetFrame(decoder, 0, &frame));
|
||||||
|
IFS(IWICBitmapFrameDecode_GetPixelFormat(frame, &src_pixel_format));
|
||||||
|
IFS(IWICBitmapDecoder_GetContainerFormat(decoder, &src_container_format));
|
||||||
|
|
||||||
|
if (SUCCEEDED(hr) && keep_alpha) {
|
||||||
|
const GUID** guid;
|
||||||
|
for (guid = kAlphaContainers; *guid != NULL; ++guid) {
|
||||||
|
if (IsEqualGUID(MAKE_REFGUID(src_container_format),
|
||||||
|
MAKE_REFGUID(**guid))) {
|
||||||
|
has_alpha = HasAlpha(factory, decoder, frame, src_pixel_format);
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
// Prepare for pixel format conversion (if necessary).
|
||||||
|
IFS(IWICImagingFactory_CreateFormatConverter(factory, &converter));
|
||||||
|
|
||||||
|
for (importer = has_alpha ? kAlphaFormatImporters : kNonAlphaFormatImporters;
|
||||||
|
hr == S_OK && importer->import != NULL; ++importer) {
|
||||||
|
BOOL can_convert;
|
||||||
|
const HRESULT cchr = IWICFormatConverter_CanConvert(
|
||||||
|
converter,
|
||||||
|
MAKE_REFGUID(src_pixel_format),
|
||||||
|
MAKE_REFGUID(*importer->pixel_format),
|
||||||
|
&can_convert);
|
||||||
|
if (SUCCEEDED(cchr) && can_convert) break;
|
||||||
|
}
|
||||||
|
if (importer->import == NULL) hr = E_FAIL;
|
||||||
|
|
||||||
|
IFS(IWICFormatConverter_Initialize(converter, (IWICBitmapSource*)frame,
|
||||||
|
importer->pixel_format,
|
||||||
|
WICBitmapDitherTypeNone,
|
||||||
|
NULL, 0.0, WICBitmapPaletteTypeCustom));
|
||||||
|
|
||||||
|
// Decode.
|
||||||
|
IFS(IWICFormatConverter_GetSize(converter, &width, &height));
|
||||||
|
stride = (int64_t)importer->bytes_per_pixel * width * sizeof(*rgb);
|
||||||
|
if (stride != (int)stride ||
|
||||||
|
!ImgIoUtilCheckSizeArgumentsOverflow(stride, height)) {
|
||||||
|
hr = E_FAIL;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (SUCCEEDED(hr)) {
|
||||||
|
rgb = (BYTE*)malloc((size_t)stride * height);
|
||||||
|
if (rgb == NULL)
|
||||||
|
hr = E_OUTOFMEMORY;
|
||||||
|
}
|
||||||
|
IFS(IWICFormatConverter_CopyPixels(converter, NULL,
|
||||||
|
(UINT)stride, (UINT)stride * height, rgb));
|
||||||
|
|
||||||
|
// WebP conversion.
|
||||||
|
if (SUCCEEDED(hr)) {
|
||||||
|
int ok;
|
||||||
|
pic->width = width;
|
||||||
|
pic->height = height;
|
||||||
|
pic->use_argb = 1; // For WIC, we always force to argb
|
||||||
|
ok = importer->import(pic, rgb, (int)stride);
|
||||||
|
if (!ok) hr = E_FAIL;
|
||||||
|
}
|
||||||
|
if (SUCCEEDED(hr)) {
|
||||||
|
if (metadata != NULL) {
|
||||||
|
hr = ExtractMetadata(factory, frame, metadata);
|
||||||
|
if (FAILED(hr)) {
|
||||||
|
fprintf(stderr, "Error extracting image metadata using WIC!\n");
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
// Cleanup.
|
||||||
|
if (converter != NULL) IUnknown_Release(converter);
|
||||||
|
if (frame != NULL) IUnknown_Release(frame);
|
||||||
|
if (decoder != NULL) IUnknown_Release(decoder);
|
||||||
|
if (factory != NULL) IUnknown_Release(factory);
|
||||||
|
if (stream != NULL) IUnknown_Release(stream);
|
||||||
|
free(rgb);
|
||||||
|
return SUCCEEDED(hr);
|
||||||
|
}
|
||||||
|
#else // !HAVE_WINCODEC_H
|
||||||
|
int ReadPictureWithWIC(const char* const filename,
|
||||||
|
struct WebPPicture* const pic, int keep_alpha,
|
||||||
|
struct Metadata* const metadata) {
|
||||||
|
(void)filename;
|
||||||
|
(void)pic;
|
||||||
|
(void)keep_alpha;
|
||||||
|
(void)metadata;
|
||||||
|
fprintf(stderr, "Windows Imaging Component (WIC) support not compiled. "
|
||||||
|
"Visual Studio and mingw-w64 builds support WIC. Make sure "
|
||||||
|
"wincodec.h detection is working correctly if using autoconf "
|
||||||
|
"and HAVE_WINCODEC_H is defined before building.\n");
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
#endif // HAVE_WINCODEC_H
|
||||||
|
|
||||||
|
// -----------------------------------------------------------------------------
|
34
imageio/wicdec.h
Normal file
34
imageio/wicdec.h
Normal file
@ -0,0 +1,34 @@
|
|||||||
|
// Copyright 2013 Google Inc. All Rights Reserved.
|
||||||
|
//
|
||||||
|
// Use of this source code is governed by a BSD-style license
|
||||||
|
// that can be found in the COPYING file in the root of the source
|
||||||
|
// tree. An additional intellectual property rights grant can be found
|
||||||
|
// in the file PATENTS. All contributing project authors may
|
||||||
|
// be found in the AUTHORS file in the root of the source tree.
|
||||||
|
// -----------------------------------------------------------------------------
|
||||||
|
//
|
||||||
|
// Windows Imaging Component (WIC) decode.
|
||||||
|
|
||||||
|
#ifndef WEBP_IMAGEIO_WICDEC_H_
|
||||||
|
#define WEBP_IMAGEIO_WICDEC_H_
|
||||||
|
|
||||||
|
#ifdef __cplusplus
|
||||||
|
extern "C" {
|
||||||
|
#endif
|
||||||
|
|
||||||
|
struct Metadata;
|
||||||
|
struct WebPPicture;
|
||||||
|
|
||||||
|
// Reads an image from 'filename', returning the decoded output in 'pic'.
|
||||||
|
// If 'keep_alpha' is true and the image has an alpha channel, the output is
|
||||||
|
// RGBA otherwise it will be RGB. pic->use_argb is always forced to true.
|
||||||
|
// Returns true on success.
|
||||||
|
int ReadPictureWithWIC(const char* const filename,
|
||||||
|
struct WebPPicture* const pic, int keep_alpha,
|
||||||
|
struct Metadata* const metadata);
|
||||||
|
|
||||||
|
#ifdef __cplusplus
|
||||||
|
} // extern "C"
|
||||||
|
#endif
|
||||||
|
|
||||||
|
#endif // WEBP_IMAGEIO_WICDEC_H_
|
106
infra/common.sh
Normal file
106
infra/common.sh
Normal file
@ -0,0 +1,106 @@
|
|||||||
|
# Copyright (c) 2021, Google Inc. All rights reserved.
|
||||||
|
#
|
||||||
|
# Redistribution and use in source and binary forms, with or without
|
||||||
|
# modification, are permitted provided that the following conditions are
|
||||||
|
# met:
|
||||||
|
#
|
||||||
|
# * Redistributions of source code must retain the above copyright
|
||||||
|
# notice, this list of conditions and the following disclaimer.
|
||||||
|
#
|
||||||
|
# * Redistributions in binary form must reproduce the above copyright
|
||||||
|
# notice, this list of conditions and the following disclaimer in
|
||||||
|
# the documentation and/or other materials provided with the
|
||||||
|
# distribution.
|
||||||
|
#
|
||||||
|
# * Neither the name of Google nor the names of its contributors may
|
||||||
|
# be used to endorse or promote products derived from this software
|
||||||
|
# without specific prior written permission.
|
||||||
|
#
|
||||||
|
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
||||||
|
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
||||||
|
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
|
||||||
|
# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
|
||||||
|
# HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
||||||
|
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
|
||||||
|
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
||||||
|
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
||||||
|
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
||||||
|
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
||||||
|
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||||||
|
|
||||||
|
log_err() {
|
||||||
|
echo "[$(date +'%Y-%m-%dT%H:%M:%S%z')]: $*" >&2
|
||||||
|
}
|
||||||
|
|
||||||
|
#######################################
|
||||||
|
# Create build directory. Build directory will be deleted if it exists.
|
||||||
|
# Arguments:
|
||||||
|
# None.
|
||||||
|
# Returns:
|
||||||
|
# mkdir result.
|
||||||
|
#######################################
|
||||||
|
make_build_dir() {
|
||||||
|
if [[ "$#" -ne 1 ]]; then
|
||||||
|
return 1
|
||||||
|
fi
|
||||||
|
|
||||||
|
local build_dir
|
||||||
|
build_dir="$1"
|
||||||
|
rm -rf "${build_dir}"
|
||||||
|
mkdir -p "${build_dir}"
|
||||||
|
}
|
||||||
|
|
||||||
|
#######################################
|
||||||
|
# Cleanup files from the build directory.
|
||||||
|
# Globals:
|
||||||
|
# LIBWEBP_ROOT repository's root path.
|
||||||
|
# Arguments:
|
||||||
|
# $1 build directory.
|
||||||
|
#######################################
|
||||||
|
cleanup() {
|
||||||
|
# $1 is not completely removed to allow for binary artifacts to be
|
||||||
|
# extracted.
|
||||||
|
find "${1:?"Build directory not defined"}" \
|
||||||
|
\( -name "*.[ao]" -o -name "*.l[ao]" \) -exec rm -f {} +
|
||||||
|
}
|
||||||
|
|
||||||
|
#######################################
|
||||||
|
# Setup ccache for toolchain.
|
||||||
|
# Globals:
|
||||||
|
# PATH
|
||||||
|
# Arguments:
|
||||||
|
# None.
|
||||||
|
#######################################
|
||||||
|
setup_ccache() {
|
||||||
|
if [[ -x "$(command -v ccache)" ]]; then
|
||||||
|
export CCACHE_CPP2=yes
|
||||||
|
export PATH="/usr/lib/ccache:${PATH}"
|
||||||
|
fi
|
||||||
|
}
|
||||||
|
|
||||||
|
#######################################
|
||||||
|
# Detects whether test block should be run in the current test shard.
|
||||||
|
# Globals:
|
||||||
|
# TEST_TOTAL_SHARDS: Valid range: [1, N]. Defaults to 1.
|
||||||
|
# TEST_SHARD_INDEX: Valid range: [0, TEST_TOTAL_SHARDS). Defaults to 0.
|
||||||
|
# libwebp_test_id: current test number; incremented with each call.
|
||||||
|
# Arguments:
|
||||||
|
# None
|
||||||
|
# Returns:
|
||||||
|
# true if the shard is active
|
||||||
|
# false if the shard is inactive
|
||||||
|
#######################################
|
||||||
|
shard_should_run() {
|
||||||
|
TEST_TOTAL_SHARDS=${TEST_TOTAL_SHARDS:=1}
|
||||||
|
TEST_SHARD_INDEX=${TEST_SHARD_INDEX:=0}
|
||||||
|
libwebp_test_id=${libwebp_test_id:=-1}
|
||||||
|
: $((libwebp_test_id += 1))
|
||||||
|
|
||||||
|
if [[ "${TEST_SHARD_INDEX}" -lt 0 ||
|
||||||
|
"${TEST_SHARD_INDEX}" -ge "${TEST_TOTAL_SHARDS}" ]]; then
|
||||||
|
log_err "Invalid TEST_SHARD_INDEX (${TEST_SHARD_INDEX})!" \
|
||||||
|
"Expected [0, ${TEST_TOTAL_SHARDS})."
|
||||||
|
fi
|
||||||
|
|
||||||
|
[[ "$((libwebp_test_id % TEST_TOTAL_SHARDS))" -eq "${TEST_SHARD_INDEX}" ]]
|
||||||
|
}
|
401
infra/compile.sh
Executable file
401
infra/compile.sh
Executable file
@ -0,0 +1,401 @@
|
|||||||
|
#!/bin/bash
|
||||||
|
# Copyright (c) 2021, Google Inc. All rights reserved.
|
||||||
|
#
|
||||||
|
# Redistribution and use in source and binary forms, with or without
|
||||||
|
# modification, are permitted provided that the following conditions are
|
||||||
|
# met:
|
||||||
|
#
|
||||||
|
# * Redistributions of source code must retain the above copyright
|
||||||
|
# notice, this list of conditions and the following disclaimer.
|
||||||
|
#
|
||||||
|
# * Redistributions in binary form must reproduce the above copyright
|
||||||
|
# notice, this list of conditions and the following disclaimer in
|
||||||
|
# the documentation and/or other materials provided with the
|
||||||
|
# distribution.
|
||||||
|
#
|
||||||
|
# * Neither the name of Google nor the names of its contributors may
|
||||||
|
# be used to endorse or promote products derived from this software
|
||||||
|
# without specific prior written permission.
|
||||||
|
#
|
||||||
|
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
||||||
|
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
||||||
|
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
|
||||||
|
# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
|
||||||
|
# HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
||||||
|
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
|
||||||
|
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
||||||
|
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
||||||
|
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
||||||
|
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
||||||
|
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||||||
|
|
||||||
|
set -xe
|
||||||
|
LIBWEBP_ROOT="$(realpath "$(dirname "$0")/..")"
|
||||||
|
WORKSPACE=${WORKSPACE:-"$(mktemp -d -t webp.XXX)"}
|
||||||
|
|
||||||
|
# shellcheck source=infra/common.sh
|
||||||
|
source "${LIBWEBP_ROOT}/infra/common.sh"
|
||||||
|
|
||||||
|
usage() {
|
||||||
|
cat << EOF
|
||||||
|
Usage: compile.sh BUILD_TYPE TARGET
|
||||||
|
Options:
|
||||||
|
BUILD_TYPE supported build type: (shared, static, static-debug)
|
||||||
|
TARGET supported target platforms:
|
||||||
|
aarch64-linux-clang
|
||||||
|
aarch64-linux-gnu
|
||||||
|
arm-linux-gnueabi
|
||||||
|
arm-neon-linux-gnueabi
|
||||||
|
cmake
|
||||||
|
cmake-aarch64
|
||||||
|
cmake-arm
|
||||||
|
cmake-clang
|
||||||
|
disable-near-lossless
|
||||||
|
disable-sse4.1
|
||||||
|
disable-stats
|
||||||
|
force-aligned-32
|
||||||
|
force-aligned-64
|
||||||
|
gradle
|
||||||
|
i686-linux-asan
|
||||||
|
i686-linux-clang
|
||||||
|
i686-linux-gnu
|
||||||
|
i686-w64-mingw32
|
||||||
|
mips2el-linux-gnu
|
||||||
|
mips32dspr2el-linux-gnu
|
||||||
|
mips32eb-linux-gnu
|
||||||
|
mips32el-linux-gnu
|
||||||
|
mips32r2el-linux-gnu
|
||||||
|
mips32r5el-linux-gnu
|
||||||
|
mips64r2el-linux-gnu
|
||||||
|
mips64r6el-linux-gnu
|
||||||
|
native
|
||||||
|
reduce-csp
|
||||||
|
reduce-size
|
||||||
|
reduce-size-disable-stats
|
||||||
|
visibility-default-gnu
|
||||||
|
visibility-hidden-clang
|
||||||
|
visibility-hidden-gnu
|
||||||
|
wasm
|
||||||
|
x86_64-linux-clang
|
||||||
|
x86_64-linux-gnu
|
||||||
|
x86_64-linux-msan
|
||||||
|
x86_64-w64-mingw32
|
||||||
|
Environment variables:
|
||||||
|
WORKSPACE directory where the build is done
|
||||||
|
EOF
|
||||||
|
}
|
||||||
|
|
||||||
|
################################################################################
|
||||||
|
echo "Building libwebp in ${WORKSPACE}"
|
||||||
|
|
||||||
|
if [[ ! -d "${WORKSPACE}" ]]; then
|
||||||
|
log_err "${WORKSPACE} directory does not exist"
|
||||||
|
exit 1
|
||||||
|
fi
|
||||||
|
|
||||||
|
BUILD_TYPE=${1:?"Build type not defined.$(
|
||||||
|
echo
|
||||||
|
usage
|
||||||
|
)"}
|
||||||
|
TARGET=${2:?"Target not defined.$(
|
||||||
|
echo
|
||||||
|
usage
|
||||||
|
)"}
|
||||||
|
readonly BUILD_DIR="${WORKSPACE}/build-${BUILD_TYPE}"
|
||||||
|
|
||||||
|
trap 'cleanup ${BUILD_DIR}' EXIT
|
||||||
|
make_build_dir "${BUILD_DIR}"
|
||||||
|
|
||||||
|
config_flags=()
|
||||||
|
case "${BUILD_TYPE}" in
|
||||||
|
shared*) ;; # Valid BUILD_TYPE but no setup required
|
||||||
|
static*) config_flags+=("--disable-shared") ;;
|
||||||
|
experimental) config_flags+=("--enable-experimental") ;;
|
||||||
|
*)
|
||||||
|
log_err "Invalid BUILD_TYPE"
|
||||||
|
usage
|
||||||
|
exit 1
|
||||||
|
;;
|
||||||
|
esac
|
||||||
|
|
||||||
|
if grep -m 1 -q "enable-asserts" "${LIBWEBP_ROOT}/configure.ac"; then
|
||||||
|
config_flags+=("--enable-asserts")
|
||||||
|
fi
|
||||||
|
|
||||||
|
case "${TARGET}" in
|
||||||
|
aarch64-linux-clang)
|
||||||
|
TARGET="aarch64-linux-gnu"
|
||||||
|
CC="clang"
|
||||||
|
CC="${CC} --target=aarch64-linux-gnu"
|
||||||
|
export CC
|
||||||
|
export CFLAGS="-isystem /usr/aarch64-linux-gnu/include"
|
||||||
|
;;
|
||||||
|
arm-linux-gnueabi)
|
||||||
|
export CFLAGS="-O3 -march=armv7-a -mfloat-abi=softfp -ftree-vectorize"
|
||||||
|
;;
|
||||||
|
arm-neon-linux-gnueabi)
|
||||||
|
TARGET="arm-linux-gnueabi"
|
||||||
|
CFLAGS="-O3 -march=armv7-a -mfpu=neon -mfloat-abi=softfp -ftree-vectorize"
|
||||||
|
export CFLAGS
|
||||||
|
;;
|
||||||
|
mips2el-linux-gnu)
|
||||||
|
export CFLAGS="-EL -O2 -mips2"
|
||||||
|
TARGET="mipsel-linux-gnu"
|
||||||
|
;;
|
||||||
|
mips32el-linux-gnu)
|
||||||
|
export CFLAGS="-EL -O2 -mips32"
|
||||||
|
TARGET="mipsel-linux-gnu"
|
||||||
|
;;
|
||||||
|
mips32r2el-linux-gnu)
|
||||||
|
export CFLAGS="-EL -O2 -mips32r2"
|
||||||
|
TARGET="mipsel-linux-gnu"
|
||||||
|
;;
|
||||||
|
mips32dspr2el-linux-gnu)
|
||||||
|
export CFLAGS="-EL -O2 -mdspr2"
|
||||||
|
TARGET="mipsel-linux-gnu"
|
||||||
|
;;
|
||||||
|
mips32r5el-linux-gnu)
|
||||||
|
export CFLAGS="-EL -O2 -mips32r5 -mmsa"
|
||||||
|
TARGET="mipsel-linux-gnu"
|
||||||
|
;;
|
||||||
|
mips32eb-linux-gnu)
|
||||||
|
export CFLAGS="-EB -O2 -mips32"
|
||||||
|
TARGET="mips-linux-gnu"
|
||||||
|
;;
|
||||||
|
mips64r2el-linux-gnu)
|
||||||
|
export CFLAGS="-EL -O2 -mips64r2 -mabi=64"
|
||||||
|
TARGET="mips64el-linux-gnuabi64"
|
||||||
|
;;
|
||||||
|
mips64r6el-linux-gnu)
|
||||||
|
export CFLAGS="-EL -O2 -mips64r6 -mabi=64 -mmsa"
|
||||||
|
TARGET="mips-img-linux-gnu"
|
||||||
|
;;
|
||||||
|
i686-linux-gnu)
|
||||||
|
export CC="gcc -m32"
|
||||||
|
;;
|
||||||
|
i686-linux-clang)
|
||||||
|
TARGET="i686-linux-gnu"
|
||||||
|
export CC="clang -m32"
|
||||||
|
;;
|
||||||
|
i686-linux-asan)
|
||||||
|
TARGET="i686-linux-gnu"
|
||||||
|
export CC="clang -m32 -fsanitize=address"
|
||||||
|
;;
|
||||||
|
i686-linux-msan)
|
||||||
|
TARGET="i686-linux-gnu"
|
||||||
|
export CC="clang -m32 -fsanitize=memory"
|
||||||
|
;;
|
||||||
|
x86_64-linux-clang)
|
||||||
|
TARGET="x86_64-linux-gnu"
|
||||||
|
export CC=clang
|
||||||
|
;;
|
||||||
|
x86_64-linux-msan)
|
||||||
|
TARGET="x86_64-linux-gnu"
|
||||||
|
export CC="clang -fsanitize=memory"
|
||||||
|
;;
|
||||||
|
force-aligned-32)
|
||||||
|
config_flags+=("--enable-aligned")
|
||||||
|
TARGET="i686-linux-gnu"
|
||||||
|
export CC="gcc -m32"
|
||||||
|
;;
|
||||||
|
force-aligned-64)
|
||||||
|
config_flags+=("--enable-aligned")
|
||||||
|
TARGET="x86_64-linux-gnu"
|
||||||
|
;;
|
||||||
|
visibility-default-*)
|
||||||
|
export CFLAGS="-O2 -g -fvisibility=default"
|
||||||
|
TARGET="x86_64-linux-gnu"
|
||||||
|
;;
|
||||||
|
visibility-hidden-*)
|
||||||
|
export CFLAGS="-O2 -g -fvisibility=hidden"
|
||||||
|
if [[ "${TARGET}" = "visibility-hidden-clang" ]]; then
|
||||||
|
export CC=clang
|
||||||
|
fi
|
||||||
|
TARGET="x86_64-linux-gnu"
|
||||||
|
;;
|
||||||
|
disable-sse4.1)
|
||||||
|
grep "${TARGET}" "${LIBWEBP_ROOT}/configure.ac" || exit 0
|
||||||
|
config_flags+=("--${TARGET}")
|
||||||
|
TARGET="x86_64-linux-gnu"
|
||||||
|
;;
|
||||||
|
disable-near-lossless)
|
||||||
|
grep "${TARGET}" "${LIBWEBP_ROOT}/configure.ac" || exit 0
|
||||||
|
config_flags+=("--${TARGET}")
|
||||||
|
TARGET="x86_64-linux-gnu"
|
||||||
|
;;
|
||||||
|
disable-stats)
|
||||||
|
git -C "${LIBWEBP_ROOT}" grep WEBP_DISABLE_STATS || exit 0
|
||||||
|
export CFLAGS="-O2 -g -DWEBP_DISABLE_STATS"
|
||||||
|
TARGET="x86_64-linux-gnu"
|
||||||
|
;;
|
||||||
|
reduce-size)
|
||||||
|
git -C "${LIBWEBP_ROOT}" grep WEBP_REDUCE_SIZE || exit 0
|
||||||
|
export CFLAGS="-O2 -g -DWEBP_REDUCE_SIZE"
|
||||||
|
TARGET="x86_64-linux-gnu"
|
||||||
|
;;
|
||||||
|
reduce-size-disable-stats)
|
||||||
|
git -C "${LIBWEBP_ROOT}" grep -e WEBP_DISABLE_STATS -e WEBP_REDUCE_SIZE \
|
||||||
|
|| exit 0
|
||||||
|
export CFLAGS="-O2 -g -DWEBP_DISABLE_STATS -DWEBP_REDUCE_SIZE"
|
||||||
|
TARGET="x86_64-linux-gnu"
|
||||||
|
;;
|
||||||
|
reduce-csp)
|
||||||
|
git -C "${LIBWEBP_ROOT}" grep WEBP_REDUCE_CSP || exit 0
|
||||||
|
export CFLAGS="-O2 -g -DWEBP_REDUCE_CSP"
|
||||||
|
TARGET="x86_64-linux-gnu"
|
||||||
|
;;
|
||||||
|
x86_64-linux-gnu | *mingw32 | aarch64*) ;; # Default target configuration
|
||||||
|
# non-configure based builds
|
||||||
|
native)
|
||||||
|
setup_ccache
|
||||||
|
# exercise makefile.unix then quit
|
||||||
|
make -C "${LIBWEBP_ROOT}" -f makefile.unix -j all
|
||||||
|
for tgt in extras examples/anim_diff; do
|
||||||
|
grep -q -m 1 "${tgt}" "${LIBWEBP_ROOT}/makefile.unix" \
|
||||||
|
&& make -C "${LIBWEBP_ROOT}" -f makefile.unix -j "${tgt}"
|
||||||
|
done
|
||||||
|
[[ -d "${LIBWEBP_ROOT}/tests/fuzzer" ]] \
|
||||||
|
&& make -j -C "${LIBWEBP_ROOT}/tests/fuzzer" -f makefile.unix
|
||||||
|
exit 0
|
||||||
|
;;
|
||||||
|
cmake*)
|
||||||
|
setup_ccache
|
||||||
|
# exercise cmake then quit
|
||||||
|
opts=()
|
||||||
|
case "${TARGET}" in
|
||||||
|
cmake-clang)
|
||||||
|
opts+=("-DCMAKE_C_COMPILER=clang")
|
||||||
|
;;
|
||||||
|
cmake-arm)
|
||||||
|
opts+=("-DCMAKE_C_COMPILER=arm-linux-gnueabi-gcc")
|
||||||
|
case "${GERRIT_BRANCH:-}" in
|
||||||
|
portable-intrinsics | 0.6.1) exit 0 ;;
|
||||||
|
*) ;; # Skip configuration
|
||||||
|
esac
|
||||||
|
;;
|
||||||
|
cmake-aarch64)
|
||||||
|
opts+=("-DCMAKE_C_COMPILER=aarch64-linux-gnu-gcc")
|
||||||
|
case "${GERRIT_BRANCH:-}" in
|
||||||
|
portable-intrinsics | 0.6.1) exit 0 ;;
|
||||||
|
*) ;; # Skip configuration
|
||||||
|
esac
|
||||||
|
;;
|
||||||
|
*) ;; # Skip configuration
|
||||||
|
esac
|
||||||
|
case "${BUILD_TYPE}" in
|
||||||
|
static*)
|
||||||
|
opts+=("-DBUILD_SHARED_LIBS=OFF")
|
||||||
|
;;
|
||||||
|
experimental)
|
||||||
|
opts+=("-DWEBP_EXPERIMENTAL_FEATURES=ON" "-DBUILD_SHARED_LIBS=ON")
|
||||||
|
;;
|
||||||
|
*)
|
||||||
|
opts+=("-DBUILD_SHARED_LIBS=ON")
|
||||||
|
;;
|
||||||
|
esac
|
||||||
|
case "${BUILD_TYPE}" in
|
||||||
|
*debug) opts+=("-DCMAKE_BUILD_TYPE=Debug") ;;
|
||||||
|
*) opts+=("-DCMAKE_BUILD_TYPE=RelWithDebInfo") ;;
|
||||||
|
esac
|
||||||
|
cd "${BUILD_DIR}"
|
||||||
|
opts+=("-DWEBP_BUILD_CWEBP=ON" "-DWEBP_BUILD_DWEBP=ON")
|
||||||
|
grep -m 1 -q WEBP_BUILD_GIF2WEBP "${LIBWEBP_ROOT}/CMakeLists.txt" \
|
||||||
|
&& opts+=("-DWEBP_BUILD_GIF2WEBP=ON")
|
||||||
|
grep -m 1 -q WEBP_BUILD_IMG2WEBP "${LIBWEBP_ROOT}/CMakeLists.txt" \
|
||||||
|
&& opts+=("-DWEBP_BUILD_IMG2WEBP=ON")
|
||||||
|
cmake "${opts[@]}" "${LIBWEBP_ROOT}"
|
||||||
|
make VERBOSE=1 -j
|
||||||
|
case "${BUILD_TYPE}" in
|
||||||
|
static)
|
||||||
|
mkdir -p examples
|
||||||
|
cp [cd]webp examples
|
||||||
|
;;
|
||||||
|
*) ;; # Skip configuration.
|
||||||
|
esac
|
||||||
|
|
||||||
|
grep "install" "${LIBWEBP_ROOT}/CMakeLists.txt" || exit 0
|
||||||
|
|
||||||
|
make DESTDIR="${BUILD_DIR}/webp-install" install/strip
|
||||||
|
mkdir tmp
|
||||||
|
cd tmp
|
||||||
|
cat > CMakeLists.txt << EOF
|
||||||
|
cmake_minimum_required(VERSION 2.8.7)
|
||||||
|
|
||||||
|
project(libwebp C)
|
||||||
|
|
||||||
|
find_package(WebP)
|
||||||
|
if (NOT WebP_FOUND)
|
||||||
|
message(FATAL_ERROR "WebP package not found")
|
||||||
|
endif ()
|
||||||
|
message("WebP_FOUND: \${WebP_FOUND}")
|
||||||
|
message("WebP_INCLUDE_DIRS: \${WebP_INCLUDE_DIRS}")
|
||||||
|
message("WebP_LIBRARIES: \${WebP_LIBRARIES}")
|
||||||
|
message("WEBP_INCLUDE_DIRS: \${WEBP_INCLUDE_DIRS}")
|
||||||
|
message("WEBP_LIBRARIES: \${WEBP_LIBRARIES}")
|
||||||
|
EOF
|
||||||
|
cmake . "${opts[@]}" \
|
||||||
|
"-DCMAKE_PREFIX_PATH=${BUILD_DIR}/webp-install/usr/local"
|
||||||
|
exit 0
|
||||||
|
;;
|
||||||
|
gradle)
|
||||||
|
setup_ccache
|
||||||
|
# exercise gradle then quit
|
||||||
|
[[ -f "${LIBWEBP_ROOT}/gradlew" ]] || exit 0
|
||||||
|
|
||||||
|
cd "${BUILD_DIR}"
|
||||||
|
# TODO -g / --gradle-user-home could be used if there's a race between jobs
|
||||||
|
"${LIBWEBP_ROOT}/gradlew" -p "${LIBWEBP_ROOT}" buildAllExecutables
|
||||||
|
exit 0
|
||||||
|
;;
|
||||||
|
wasm)
|
||||||
|
grep -m 1 -q WEBP_ENABLE_WASM "${LIBWEBP_ROOT}/CMakeLists.txt" || exit 0
|
||||||
|
opts+=("-DCMAKE_C_COMPILER=clang" "-DWEBP_ENABLE_WASM=ON")
|
||||||
|
opts+=("-DWEBP_BUILD_CWEBP=ON" "-DWEBP_BUILD_DWEBP=ON")
|
||||||
|
case "${BUILD_TYPE}" in
|
||||||
|
*debug) opts+=("-DCMAKE_BUILD_TYPE=Debug") ;;
|
||||||
|
*) opts+=("-DCMAKE_BUILD_TYPE=RelWithDebInfo") ;;
|
||||||
|
esac
|
||||||
|
cd "${BUILD_DIR}"
|
||||||
|
cmake "${opts[@]}" "${LIBWEBP_ROOT}"
|
||||||
|
make VERBOSE=1 -j
|
||||||
|
mkdir examples
|
||||||
|
case "${BUILD_TYPE}" in
|
||||||
|
static)
|
||||||
|
mkdir -p examples
|
||||||
|
cp [cd]webp examples
|
||||||
|
;;
|
||||||
|
*) ;; # Skip configuration
|
||||||
|
esac
|
||||||
|
exit 0
|
||||||
|
;;
|
||||||
|
*)
|
||||||
|
log_err "Invalid TARGET"
|
||||||
|
usage
|
||||||
|
exit 1
|
||||||
|
;;
|
||||||
|
esac
|
||||||
|
|
||||||
|
case "${TARGET}" in
|
||||||
|
*mingw32) ;; # Skip configuration
|
||||||
|
*)
|
||||||
|
case "${TARGET}-${CC}" in
|
||||||
|
static-debug-gcc* | static-debug-)
|
||||||
|
CFLAGS="${CFLAGS} -fprofile-arcs -ftest-coverage -O0 -g"
|
||||||
|
CXXFLAGS="${CXXFLAGS} -fprofile-arcs -ftest-coverage -O0 -g"
|
||||||
|
export CFLAGS CXXFLAGS
|
||||||
|
;;
|
||||||
|
*) ;; # This case should not be reached.
|
||||||
|
esac
|
||||||
|
;;
|
||||||
|
esac
|
||||||
|
|
||||||
|
setup_ccache
|
||||||
|
|
||||||
|
cd "${LIBWEBP_ROOT}"
|
||||||
|
./autogen.sh
|
||||||
|
|
||||||
|
cd "${BUILD_DIR}"
|
||||||
|
"${LIBWEBP_ROOT}/configure" \
|
||||||
|
--host "${TARGET}" --build "$("${LIBWEBP_ROOT}/config.guess")" \
|
||||||
|
--enable-everything "${config_flags[@]}"
|
||||||
|
make -j V=1
|
224
infra/compile_android.sh
Executable file
224
infra/compile_android.sh
Executable file
@ -0,0 +1,224 @@
|
|||||||
|
#!/bin/bash
|
||||||
|
# Copyright (c) 2021, Google Inc. All rights reserved.
|
||||||
|
#
|
||||||
|
# Redistribution and use in source and binary forms, with or without
|
||||||
|
# modification, are permitted provided that the following conditions are
|
||||||
|
# met:
|
||||||
|
#
|
||||||
|
# * Redistributions of source code must retain the above copyright
|
||||||
|
# notice, this list of conditions and the following disclaimer.
|
||||||
|
#
|
||||||
|
# * Redistributions in binary form must reproduce the above copyright
|
||||||
|
# notice, this list of conditions and the following disclaimer in
|
||||||
|
# the documentation and/or other materials provided with the
|
||||||
|
# distribution.
|
||||||
|
#
|
||||||
|
# * Neither the name of Google nor the names of its contributors may
|
||||||
|
# be used to endorse or promote products derived from this software
|
||||||
|
# without specific prior written permission.
|
||||||
|
#
|
||||||
|
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
||||||
|
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
||||||
|
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
|
||||||
|
# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
|
||||||
|
# HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
||||||
|
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
|
||||||
|
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
||||||
|
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
||||||
|
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
||||||
|
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
||||||
|
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||||||
|
|
||||||
|
set -xe
|
||||||
|
LIBWEBP_ROOT="$(realpath "$(dirname "$0")/..")"
|
||||||
|
readonly LIBWEBP_ROOT
|
||||||
|
readonly WORKSPACE=${WORKSPACE:-"$(mktemp -d -t webp.android.XXX)"}
|
||||||
|
# shellcheck source=infra/common.sh
|
||||||
|
source "${LIBWEBP_ROOT}/infra/common.sh"
|
||||||
|
|
||||||
|
usage() {
|
||||||
|
cat << EOF
|
||||||
|
Usage: $(basename "$0") BUILD_TYPE APP_ABI
|
||||||
|
Options:
|
||||||
|
BUILD_TYPE supported build types:
|
||||||
|
static
|
||||||
|
static-debug
|
||||||
|
shared
|
||||||
|
shared-debug
|
||||||
|
APP_ABI supported application binary interfaces:
|
||||||
|
armeabi-v7a
|
||||||
|
arm64-v8a
|
||||||
|
x86
|
||||||
|
x86_64
|
||||||
|
Environment variables:
|
||||||
|
WORKSPACE directory where the build is done.
|
||||||
|
ANDROID_NDK_DIR directory where the android ndk tools are.
|
||||||
|
EOF
|
||||||
|
}
|
||||||
|
|
||||||
|
################################################################################
|
||||||
|
echo "Building libwebp for Android in ${WORKSPACE}"
|
||||||
|
|
||||||
|
if [[ ! -d "${WORKSPACE}" ]]; then
|
||||||
|
log_err "${WORKSPACE} directory does not exist."
|
||||||
|
exit 1
|
||||||
|
fi
|
||||||
|
|
||||||
|
readonly BUILD_TYPE=${1:?"BUILD_TYPE is not defined.$(
|
||||||
|
echo
|
||||||
|
usage
|
||||||
|
)"}
|
||||||
|
readonly APP_ABI=${2:?"APP_ABI not defined.$(
|
||||||
|
echo
|
||||||
|
usage
|
||||||
|
)"}
|
||||||
|
readonly ANDROID_NDK_DIR=${ANDROID_NDK_DIR:?"ANDROID_NDK_DIR is not defined.$(
|
||||||
|
echo
|
||||||
|
usage
|
||||||
|
)"}
|
||||||
|
readonly BUILD_DIR="${WORKSPACE}/build-${BUILD_TYPE}"
|
||||||
|
readonly STANDALONE_ANDROID_DIR="${WORKSPACE}/android"
|
||||||
|
|
||||||
|
if [[ ! -x "${ANDROID_NDK_DIR}/ndk-build" ]]; then
|
||||||
|
log_err "unable to find ndk-build in ANDROID_NDK_DIR: ${ANDROID_NDK_DIR}."
|
||||||
|
exit 1
|
||||||
|
fi
|
||||||
|
|
||||||
|
CFLAGS=
|
||||||
|
LDFLAGS=
|
||||||
|
opts=()
|
||||||
|
case "${BUILD_TYPE}" in
|
||||||
|
*debug)
|
||||||
|
readonly APP_OPTIM="debug"
|
||||||
|
CFLAGS="-O0 -g"
|
||||||
|
opts+=("--enable-asserts")
|
||||||
|
;;
|
||||||
|
static* | shared*)
|
||||||
|
readonly APP_OPTIM="release"
|
||||||
|
CFLAGS="-O2 -g"
|
||||||
|
;;
|
||||||
|
*)
|
||||||
|
usage
|
||||||
|
exit 1
|
||||||
|
;;
|
||||||
|
esac
|
||||||
|
|
||||||
|
case "${BUILD_TYPE}" in
|
||||||
|
shared*) readonly SHARED="1" ;;
|
||||||
|
*)
|
||||||
|
readonly SHARED="0"
|
||||||
|
CFLAGS="${CFLAGS} -fPIE"
|
||||||
|
LDFLAGS="${LDFLAGS} -Wl,-pie"
|
||||||
|
opts+=("--disable-shared")
|
||||||
|
;;
|
||||||
|
esac
|
||||||
|
|
||||||
|
# Create a fresh build directory
|
||||||
|
make_build_dir "${BUILD_DIR}"
|
||||||
|
cd "${BUILD_DIR}"
|
||||||
|
ln -s "${LIBWEBP_ROOT}" jni
|
||||||
|
|
||||||
|
"${ANDROID_NDK_DIR}/ndk-build" -j2 \
|
||||||
|
APP_ABI="${APP_ABI}" \
|
||||||
|
APP_OPTIM="${APP_OPTIM}" \
|
||||||
|
ENABLE_SHARED="${SHARED}"
|
||||||
|
|
||||||
|
cd "${LIBWEBP_ROOT}"
|
||||||
|
./autogen.sh
|
||||||
|
|
||||||
|
case "${APP_ABI}" in
|
||||||
|
armeabi*) arch="arm" ;;
|
||||||
|
arm64*) arch="arm64" ;;
|
||||||
|
*) arch="${APP_ABI}" ;;
|
||||||
|
esac
|
||||||
|
# TODO(b/185520507): remove this and use the binaries from
|
||||||
|
# toolchains/llvm/prebuilt/ directly.
|
||||||
|
rm -rf "${STANDALONE_ANDROID_DIR}"
|
||||||
|
"${ANDROID_NDK_DIR}/build/tools/make_standalone_toolchain.py" \
|
||||||
|
--api 24 --arch "${arch}" --stl gnustl --install-dir \
|
||||||
|
"${STANDALONE_ANDROID_DIR}"
|
||||||
|
export PATH="${STANDALONE_ANDROID_DIR}/bin:${PATH}"
|
||||||
|
|
||||||
|
rm -rf "${BUILD_DIR}"
|
||||||
|
make_build_dir "${BUILD_DIR}"
|
||||||
|
cd "${BUILD_DIR}"
|
||||||
|
|
||||||
|
case "${arch}" in
|
||||||
|
arm)
|
||||||
|
host="arm-linux-androideabi"
|
||||||
|
case "${APP_ABI}" in
|
||||||
|
armeabi) ;;
|
||||||
|
armeabi-v7a)
|
||||||
|
CFLAGS="${CFLAGS} -march=armv7-a -mfpu=neon -mfloat-abi=softfp"
|
||||||
|
;;
|
||||||
|
*) ;; # No configuration needed
|
||||||
|
esac
|
||||||
|
;;
|
||||||
|
arm64)
|
||||||
|
host="aarch64-linux-android"
|
||||||
|
;;
|
||||||
|
x86)
|
||||||
|
host="i686-linux-android"
|
||||||
|
;;
|
||||||
|
x86_64)
|
||||||
|
host="x86_64-linux-android"
|
||||||
|
;;
|
||||||
|
*) ;; # Skip configuration
|
||||||
|
esac
|
||||||
|
|
||||||
|
setup_ccache
|
||||||
|
CC="clang"
|
||||||
|
|
||||||
|
"${LIBWEBP_ROOT}/configure" --host "${host}" --build \
|
||||||
|
"$("${LIBWEBP_ROOT}/config.guess")" CC="${CC}" CFLAGS="${CFLAGS}" \
|
||||||
|
LDFLAGS="${LDFLAGS}" "${opts[@]}"
|
||||||
|
make -j
|
||||||
|
|
||||||
|
if [[ "${GERRIT_REFSPEC:-}" = "refs/heads/portable-intrinsics" ]] \
|
||||||
|
|| [[ "${GERRIT_BRANCH:-}" = "portable-intrinsics" ]]; then
|
||||||
|
cd "${WORKSPACE}"
|
||||||
|
rm -rf build && mkdir build
|
||||||
|
cd build
|
||||||
|
standalone="${WORKSPACE}/android"
|
||||||
|
cmake ../libwebp \
|
||||||
|
-DWEBP_BUILD_DWEBP=1 \
|
||||||
|
-DCMAKE_C_COMPILER="${standalone}/bin/clang" \
|
||||||
|
-DCMAKE_PREFIX_PATH="${standalone}/sysroot/usr/lib" \
|
||||||
|
-DCMAKE_C_FLAGS=-fPIE \
|
||||||
|
-DCMAKE_EXE_LINKER_FLAGS=-Wl,-pie \
|
||||||
|
-DCMAKE_BUILD_TYPE=Release \
|
||||||
|
-DWEBP_ENABLE_WASM=1
|
||||||
|
make -j2
|
||||||
|
|
||||||
|
cd "${WORKSPACE}"
|
||||||
|
make_build_dir "${BUILD_DIR}"
|
||||||
|
cd "${BUILD_DIR}"
|
||||||
|
case "${APP_ABI}" in
|
||||||
|
armeabi-v7a | arm64*)
|
||||||
|
cmake "${LIBWEBP_ROOT}" \
|
||||||
|
-DWEBP_BUILD_DWEBP=1 \
|
||||||
|
-DCMAKE_C_COMPILER="${standalone}/bin/clang" \
|
||||||
|
-DCMAKE_PREFIX_PATH="${standalone}/sysroot/usr/lib" \
|
||||||
|
-DCMAKE_C_FLAGS='-fPIE -DENABLE_NEON_BUILTIN_MULHI_INT16X8' \
|
||||||
|
-DCMAKE_EXE_LINKER_FLAGS=-Wl,-pie \
|
||||||
|
-DCMAKE_BUILD_TYPE=Release \
|
||||||
|
-DWEBP_ENABLE_WASM=1
|
||||||
|
make -j2
|
||||||
|
;;
|
||||||
|
x86*)
|
||||||
|
cmake "${LIBWEBP_ROOT}" \
|
||||||
|
-DWEBP_BUILD_DWEBP=1 \
|
||||||
|
-DCMAKE_C_COMPILER="${standalone}/bin/clang" \
|
||||||
|
-DCMAKE_PREFIX_PATH="${standalone}/sysroot/usr/lib" \
|
||||||
|
-DCMAKE_C_FLAGS='-fPIE -DENABLE_X86_BUILTIN_MULHI_INT16X8' \
|
||||||
|
-DCMAKE_EXE_LINKER_FLAGS=-Wl,-pie \
|
||||||
|
-DCMAKE_BUILD_TYPE=Release \
|
||||||
|
-DWEBP_ENABLE_WASM=1
|
||||||
|
make -j2
|
||||||
|
;;
|
||||||
|
*)
|
||||||
|
log_err "APP_ABI not supported."
|
||||||
|
exit 1
|
||||||
|
;;
|
||||||
|
esac
|
||||||
|
fi
|
75
infra/compile_js.sh
Executable file
75
infra/compile_js.sh
Executable file
@ -0,0 +1,75 @@
|
|||||||
|
#!/bin/bash
|
||||||
|
# Copyright (c) 2021, Google Inc. All rights reserved.
|
||||||
|
#
|
||||||
|
# Redistribution and use in source and binary forms, with or without
|
||||||
|
# modification, are permitted provided that the following conditions are
|
||||||
|
# met:
|
||||||
|
#
|
||||||
|
# * Redistributions of source code must retain the above copyright
|
||||||
|
# notice, this list of conditions and the following disclaimer.
|
||||||
|
#
|
||||||
|
# * Redistributions in binary form must reproduce the above copyright
|
||||||
|
# notice, this list of conditions and the following disclaimer in
|
||||||
|
# the documentation and/or other materials provided with the
|
||||||
|
# distribution.
|
||||||
|
#
|
||||||
|
# * Neither the name of Google nor the names of its contributors may
|
||||||
|
# be used to endorse or promote products derived from this software
|
||||||
|
# without specific prior written permission.
|
||||||
|
#
|
||||||
|
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
||||||
|
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
||||||
|
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
|
||||||
|
# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
|
||||||
|
# HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
||||||
|
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
|
||||||
|
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
||||||
|
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
||||||
|
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
||||||
|
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
||||||
|
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||||||
|
|
||||||
|
set -ex
|
||||||
|
|
||||||
|
readonly WORKSPACE="${WORKSPACE:-"$(mktemp -d -t webp.js.XXX)"}"
|
||||||
|
readonly BUILD_DIR="${WORKSPACE}/webp_js/"
|
||||||
|
readonly LIBWEBP_ROOT="$(realpath "$(dirname "$0")/..")"
|
||||||
|
|
||||||
|
# shellcheck source=infra/common.sh
|
||||||
|
source "${LIBWEBP_ROOT}/infra/common.sh"
|
||||||
|
|
||||||
|
usage() {
|
||||||
|
cat << EOF
|
||||||
|
Usage: $(basename "$0")
|
||||||
|
Environment variables:
|
||||||
|
WORKSPACE directory where the build is done
|
||||||
|
EMSDK_DIR directory where emsdk is installed
|
||||||
|
EOF
|
||||||
|
}
|
||||||
|
|
||||||
|
[[ -d "${EMSDK_DIR:?Not defined}" ]] \
|
||||||
|
|| (log_err "${EMSDK_DIR} is not a valid directory." && exit 1)
|
||||||
|
|
||||||
|
# shellcheck source=/opt/emsdk/emsdk_env.sh
|
||||||
|
source "${EMSDK_DIR}/emsdk_env.sh"
|
||||||
|
|
||||||
|
readonly EMSCRIPTEN=${EMSCRIPTEN:-"${EMSDK}/upstream/emscripten"}
|
||||||
|
readonly \
|
||||||
|
EMSCRIPTEN_CMAKE_FILE="${EMSCRIPTEN}/cmake/Modules/Platform/Emscripten.cmake"
|
||||||
|
make_build_dir "${BUILD_DIR}"
|
||||||
|
|
||||||
|
pushd "${BUILD_DIR}"
|
||||||
|
opts=("-GUnix Makefiles" "-DWEBP_BUILD_WEBP_JS=ON")
|
||||||
|
if [[ -z "$(command -v emcmake)" ]]; then
|
||||||
|
opts+=("-DCMAKE_TOOLCHAIN_FILE=${EMSCRIPTEN_CMAKE_FILE}")
|
||||||
|
cmake \
|
||||||
|
"${opts[@]}" \
|
||||||
|
"${LIBWEBP_ROOT}"
|
||||||
|
make -j
|
||||||
|
else
|
||||||
|
emcmake cmake \
|
||||||
|
"${opts[@]}" \
|
||||||
|
"${LIBWEBP_ROOT}"
|
||||||
|
emmake make -j
|
||||||
|
fi
|
||||||
|
popd
|
98
infra/run_static_analysis.sh
Executable file
98
infra/run_static_analysis.sh
Executable file
@ -0,0 +1,98 @@
|
|||||||
|
#!/bin/bash
|
||||||
|
# Copyright (c) 2021, Google Inc. All rights reserved.
|
||||||
|
#
|
||||||
|
# Redistribution and use in source and binary forms, with or without
|
||||||
|
# modification, are permitted provided that the following conditions are
|
||||||
|
# met:
|
||||||
|
#
|
||||||
|
# * Redistributions of source code must retain the above copyright
|
||||||
|
# notice, this list of conditions and the following disclaimer.
|
||||||
|
#
|
||||||
|
# * Redistributions in binary form must reproduce the above copyright
|
||||||
|
# notice, this list of conditions and the following disclaimer in
|
||||||
|
# the documentation and/or other materials provided with the
|
||||||
|
# distribution.
|
||||||
|
#
|
||||||
|
# * Neither the name of Google nor the names of its contributors may
|
||||||
|
# be used to endorse or promote products derived from this software
|
||||||
|
# without specific prior written permission.
|
||||||
|
#
|
||||||
|
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
||||||
|
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
||||||
|
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
|
||||||
|
# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
|
||||||
|
# HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
||||||
|
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
|
||||||
|
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
||||||
|
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
||||||
|
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
||||||
|
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
||||||
|
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||||||
|
|
||||||
|
set -xe
|
||||||
|
|
||||||
|
LIBWEBP_ROOT="$(realpath "$(dirname "$0")/..")"
|
||||||
|
readonly LIBWEBP_ROOT
|
||||||
|
readonly WORKSPACE=${WORKSPACE:-"$(mktemp -d -t webp.scanbuild.XXX)"}
|
||||||
|
|
||||||
|
# shellcheck source=infra/common.sh
|
||||||
|
source "${LIBWEBP_ROOT}/infra/common.sh"
|
||||||
|
|
||||||
|
usage() {
|
||||||
|
cat << EOF
|
||||||
|
Usage: $(basename "$0") MODE
|
||||||
|
Options:
|
||||||
|
MODE supported scan modes: (shallow|deep)
|
||||||
|
Environment variables:
|
||||||
|
WORKSPACE directory where the build is done.
|
||||||
|
EOF
|
||||||
|
}
|
||||||
|
|
||||||
|
#######################################
|
||||||
|
# Wrap clang-tools scan-build.
|
||||||
|
# Globals:
|
||||||
|
# OUTPUT_DIR target directory where scan-build report is generated.
|
||||||
|
# MODE scan-build mode
|
||||||
|
# Arguments:
|
||||||
|
# $* scan-build additional args.
|
||||||
|
# Returns:
|
||||||
|
# scan-build retcode
|
||||||
|
#######################################
|
||||||
|
scan_build() {
|
||||||
|
scan-build -o "${OUTPUT_DIR}" --use-analyzer="$(command -v clang)" \
|
||||||
|
-analyzer-config mode="${MODE}" "$*"
|
||||||
|
}
|
||||||
|
|
||||||
|
MODE=${1:?"MODE is not specified.$(
|
||||||
|
echo
|
||||||
|
usage
|
||||||
|
)"}
|
||||||
|
|
||||||
|
readonly OUTPUT_DIR="${WORKSPACE}/output-${MODE}"
|
||||||
|
readonly BUILD_DIR="${WORKSPACE}/build"
|
||||||
|
|
||||||
|
make_build_dir "${OUTPUT_DIR}"
|
||||||
|
make_build_dir "${BUILD_DIR}"
|
||||||
|
|
||||||
|
cd "${LIBWEBP_ROOT}"
|
||||||
|
./autogen.sh
|
||||||
|
|
||||||
|
cd "${BUILD_DIR}"
|
||||||
|
grep -m 1 -q 'enable-asserts' "${LIBWEBP_ROOT}/configure.ac" \
|
||||||
|
&& args='--enable-asserts'
|
||||||
|
scan_build "${LIBWEBP_ROOT}/configure" --enable-everything "${args}"
|
||||||
|
scan_build make -j4
|
||||||
|
|
||||||
|
index="$(find "${OUTPUT_DIR}" -name index.html)"
|
||||||
|
if [[ -f "${index}" ]]; then
|
||||||
|
mv "$(dirname "${index}")/"* "${OUTPUT_DIR}"
|
||||||
|
else
|
||||||
|
# make a empty report to wipe out any old bug reports.
|
||||||
|
cat << EOT > "${OUTPUT_DIR}/index.html"
|
||||||
|
<html>
|
||||||
|
<body>
|
||||||
|
No bugs reported.
|
||||||
|
</body>
|
||||||
|
</html>
|
||||||
|
EOT
|
||||||
|
fi
|
168
iosbuild.sh
Executable file
168
iosbuild.sh
Executable file
@ -0,0 +1,168 @@
|
|||||||
|
#!/bin/bash
|
||||||
|
#
|
||||||
|
# This script generates 'WebP.framework' and 'WebPDecoder.framework',
|
||||||
|
# 'WebPDemux.framework' and 'WebPMux.framework'.
|
||||||
|
# An iOS app can decode WebP images by including 'WebPDecoder.framework' and
|
||||||
|
# both encode and decode WebP images by including 'WebP.framework'.
|
||||||
|
#
|
||||||
|
# Run ./iosbuild.sh to generate the frameworks under the current directory
|
||||||
|
# (the previous build will be erased if it exists).
|
||||||
|
#
|
||||||
|
# This script is inspired by the build script written by Carson McDonald.
|
||||||
|
# (https://www.ioncannon.net/programming/1483/using-webp-to-reduce-native-ios-app-size/).
|
||||||
|
|
||||||
|
set -e
|
||||||
|
|
||||||
|
# Set this variable based on the desired minimum deployment target.
|
||||||
|
readonly IOS_MIN_VERSION=6.0
|
||||||
|
|
||||||
|
# Extract the latest SDK version from the final field of the form: iphoneosX.Y
|
||||||
|
readonly SDK=$(xcodebuild -showsdks \
|
||||||
|
| grep iphoneos | sort | tail -n 1 | awk '{print substr($NF, 9)}'
|
||||||
|
)
|
||||||
|
# Extract Xcode version.
|
||||||
|
readonly XCODE=$(xcodebuild -version | grep Xcode | cut -d " " -f2)
|
||||||
|
if [[ -z "${XCODE}" ]]; then
|
||||||
|
echo "Xcode not available"
|
||||||
|
exit 1
|
||||||
|
fi
|
||||||
|
|
||||||
|
readonly OLDPATH=${PATH}
|
||||||
|
|
||||||
|
# Add iPhoneOS-V6 to the list of platforms below if you need armv6 support.
|
||||||
|
# Note that iPhoneOS-V6 support is not available with the iOS6 SDK.
|
||||||
|
PLATFORMS="iPhoneSimulator iPhoneSimulator64"
|
||||||
|
PLATFORMS+=" iPhoneOS-V7 iPhoneOS-V7s iPhoneOS-V7-arm64"
|
||||||
|
readonly PLATFORMS
|
||||||
|
readonly SRCDIR=$(dirname $0)
|
||||||
|
readonly TOPDIR=$(pwd)
|
||||||
|
readonly BUILDDIR="${TOPDIR}/iosbuild"
|
||||||
|
readonly TARGETDIR="${TOPDIR}/WebP.framework"
|
||||||
|
readonly DECTARGETDIR="${TOPDIR}/WebPDecoder.framework"
|
||||||
|
readonly MUXTARGETDIR="${TOPDIR}/WebPMux.framework"
|
||||||
|
readonly DEMUXTARGETDIR="${TOPDIR}/WebPDemux.framework"
|
||||||
|
readonly DEVELOPER=$(xcode-select --print-path)
|
||||||
|
readonly PLATFORMSROOT="${DEVELOPER}/Platforms"
|
||||||
|
readonly LIPO=$(xcrun -sdk iphoneos${SDK} -find lipo)
|
||||||
|
LIBLIST=''
|
||||||
|
DECLIBLIST=''
|
||||||
|
MUXLIBLIST=''
|
||||||
|
DEMUXLIBLIST=''
|
||||||
|
|
||||||
|
if [[ -z "${SDK}" ]]; then
|
||||||
|
echo "iOS SDK not available"
|
||||||
|
exit 1
|
||||||
|
elif [[ ${SDK%%.*} -gt 8 ]]; then
|
||||||
|
EXTRA_CFLAGS="-fembed-bitcode"
|
||||||
|
elif [[ ${SDK%%.*} -le 6 ]]; then
|
||||||
|
echo "You need iOS SDK version 6.0 or above"
|
||||||
|
exit 1
|
||||||
|
fi
|
||||||
|
|
||||||
|
echo "Xcode Version: ${XCODE}"
|
||||||
|
echo "iOS SDK Version: ${SDK}"
|
||||||
|
|
||||||
|
if [[ -e "${BUILDDIR}" || -e "${TARGETDIR}" || -e "${DECTARGETDIR}" \
|
||||||
|
|| -e "${MUXTARGETDIR}" || -e "${DEMUXTARGETDIR}" ]]; then
|
||||||
|
cat << EOF
|
||||||
|
WARNING: The following directories will be deleted:
|
||||||
|
WARNING: ${BUILDDIR}
|
||||||
|
WARNING: ${TARGETDIR}
|
||||||
|
WARNING: ${DECTARGETDIR}
|
||||||
|
WARNING: ${MUXTARGETDIR}
|
||||||
|
WARNING: ${DEMUXTARGETDIR}
|
||||||
|
WARNING: The build will continue in 5 seconds...
|
||||||
|
EOF
|
||||||
|
sleep 5
|
||||||
|
fi
|
||||||
|
rm -rf ${BUILDDIR} ${TARGETDIR} ${DECTARGETDIR} \
|
||||||
|
${MUXTARGETDIR} ${DEMUXTARGETDIR}
|
||||||
|
mkdir -p ${BUILDDIR} ${TARGETDIR}/Headers/ ${DECTARGETDIR}/Headers/ \
|
||||||
|
${MUXTARGETDIR}/Headers/ ${DEMUXTARGETDIR}/Headers/
|
||||||
|
|
||||||
|
if [[ ! -e ${SRCDIR}/configure ]]; then
|
||||||
|
if ! (cd ${SRCDIR} && sh autogen.sh); then
|
||||||
|
cat << EOF
|
||||||
|
Error creating configure script!
|
||||||
|
This script requires the autoconf/automake and libtool to build. MacPorts can
|
||||||
|
be used to obtain these:
|
||||||
|
https://www.macports.org/install.php
|
||||||
|
EOF
|
||||||
|
exit 1
|
||||||
|
fi
|
||||||
|
fi
|
||||||
|
|
||||||
|
for PLATFORM in ${PLATFORMS}; do
|
||||||
|
ARCH2=""
|
||||||
|
if [[ "${PLATFORM}" == "iPhoneOS-V7-arm64" ]]; then
|
||||||
|
PLATFORM="iPhoneOS"
|
||||||
|
ARCH="aarch64"
|
||||||
|
ARCH2="arm64"
|
||||||
|
elif [[ "${PLATFORM}" == "iPhoneOS-V7s" ]]; then
|
||||||
|
PLATFORM="iPhoneOS"
|
||||||
|
ARCH="armv7s"
|
||||||
|
elif [[ "${PLATFORM}" == "iPhoneOS-V7" ]]; then
|
||||||
|
PLATFORM="iPhoneOS"
|
||||||
|
ARCH="armv7"
|
||||||
|
elif [[ "${PLATFORM}" == "iPhoneOS-V6" ]]; then
|
||||||
|
PLATFORM="iPhoneOS"
|
||||||
|
ARCH="armv6"
|
||||||
|
elif [[ "${PLATFORM}" == "iPhoneSimulator64" ]]; then
|
||||||
|
PLATFORM="iPhoneSimulator"
|
||||||
|
ARCH="x86_64"
|
||||||
|
else
|
||||||
|
ARCH="i386"
|
||||||
|
fi
|
||||||
|
|
||||||
|
ROOTDIR="${BUILDDIR}/${PLATFORM}-${SDK}-${ARCH}"
|
||||||
|
mkdir -p "${ROOTDIR}"
|
||||||
|
|
||||||
|
DEVROOT="${DEVELOPER}/Toolchains/XcodeDefault.xctoolchain"
|
||||||
|
SDKROOT="${PLATFORMSROOT}/"
|
||||||
|
SDKROOT+="${PLATFORM}.platform/Developer/SDKs/${PLATFORM}${SDK}.sdk/"
|
||||||
|
CFLAGS="-arch ${ARCH2:-${ARCH}} -pipe -isysroot ${SDKROOT} -O3 -DNDEBUG"
|
||||||
|
CFLAGS+=" -miphoneos-version-min=${IOS_MIN_VERSION} ${EXTRA_CFLAGS}"
|
||||||
|
|
||||||
|
set -x
|
||||||
|
export PATH="${DEVROOT}/usr/bin:${OLDPATH}"
|
||||||
|
${SRCDIR}/configure --host=${ARCH}-apple-darwin --prefix=${ROOTDIR} \
|
||||||
|
--build=$(${SRCDIR}/config.guess) \
|
||||||
|
--disable-shared --enable-static \
|
||||||
|
--enable-libwebpdecoder --enable-swap-16bit-csp \
|
||||||
|
--enable-libwebpmux \
|
||||||
|
CFLAGS="${CFLAGS}"
|
||||||
|
set +x
|
||||||
|
|
||||||
|
# Build only the libraries, skip the examples.
|
||||||
|
make V=0 -C sharpyuv
|
||||||
|
make V=0 -C src install
|
||||||
|
|
||||||
|
LIBLIST+=" ${ROOTDIR}/lib/libwebp.a"
|
||||||
|
DECLIBLIST+=" ${ROOTDIR}/lib/libwebpdecoder.a"
|
||||||
|
MUXLIBLIST+=" ${ROOTDIR}/lib/libwebpmux.a"
|
||||||
|
DEMUXLIBLIST+=" ${ROOTDIR}/lib/libwebpdemux.a"
|
||||||
|
|
||||||
|
make clean
|
||||||
|
|
||||||
|
export PATH=${OLDPATH}
|
||||||
|
done
|
||||||
|
|
||||||
|
echo "LIBLIST = ${LIBLIST}"
|
||||||
|
cp -a ${SRCDIR}/src/webp/{decode,encode,types}.h ${TARGETDIR}/Headers/
|
||||||
|
${LIPO} -create ${LIBLIST} -output ${TARGETDIR}/WebP
|
||||||
|
|
||||||
|
echo "DECLIBLIST = ${DECLIBLIST}"
|
||||||
|
cp -a ${SRCDIR}/src/webp/{decode,types}.h ${DECTARGETDIR}/Headers/
|
||||||
|
${LIPO} -create ${DECLIBLIST} -output ${DECTARGETDIR}/WebPDecoder
|
||||||
|
|
||||||
|
echo "MUXLIBLIST = ${MUXLIBLIST}"
|
||||||
|
cp -a ${SRCDIR}/src/webp/{types,mux,mux_types}.h \
|
||||||
|
${MUXTARGETDIR}/Headers/
|
||||||
|
${LIPO} -create ${MUXLIBLIST} -output ${MUXTARGETDIR}/WebPMux
|
||||||
|
|
||||||
|
echo "DEMUXLIBLIST = ${DEMUXLIBLIST}"
|
||||||
|
cp -a ${SRCDIR}/src/webp/{decode,types,mux_types,demux}.h \
|
||||||
|
${DEMUXTARGETDIR}/Headers/
|
||||||
|
${LIPO} -create ${DEMUXLIBLIST} -output ${DEMUXTARGETDIR}/WebPDemux
|
||||||
|
|
||||||
|
echo "SUCCESS"
|
2
m4/.gitignore
vendored
Normal file
2
m4/.gitignore
vendored
Normal file
@ -0,0 +1,2 @@
|
|||||||
|
/libtool.m4
|
||||||
|
/lt*.m4
|
332
m4/ax_pthread.m4
Normal file
332
m4/ax_pthread.m4
Normal file
@ -0,0 +1,332 @@
|
|||||||
|
# ===========================================================================
|
||||||
|
# http://www.gnu.org/software/autoconf-archive/ax_pthread.html
|
||||||
|
# ===========================================================================
|
||||||
|
#
|
||||||
|
# SYNOPSIS
|
||||||
|
#
|
||||||
|
# AX_PTHREAD([ACTION-IF-FOUND[, ACTION-IF-NOT-FOUND]])
|
||||||
|
#
|
||||||
|
# DESCRIPTION
|
||||||
|
#
|
||||||
|
# This macro figures out how to build C programs using POSIX threads. It
|
||||||
|
# sets the PTHREAD_LIBS output variable to the threads library and linker
|
||||||
|
# flags, and the PTHREAD_CFLAGS output variable to any special C compiler
|
||||||
|
# flags that are needed. (The user can also force certain compiler
|
||||||
|
# flags/libs to be tested by setting these environment variables.)
|
||||||
|
#
|
||||||
|
# Also sets PTHREAD_CC to any special C compiler that is needed for
|
||||||
|
# multi-threaded programs (defaults to the value of CC otherwise). (This
|
||||||
|
# is necessary on AIX to use the special cc_r compiler alias.)
|
||||||
|
#
|
||||||
|
# NOTE: You are assumed to not only compile your program with these flags,
|
||||||
|
# but also link it with them as well. e.g. you should link with
|
||||||
|
# $PTHREAD_CC $CFLAGS $PTHREAD_CFLAGS $LDFLAGS ... $PTHREAD_LIBS $LIBS
|
||||||
|
#
|
||||||
|
# If you are only building threads programs, you may wish to use these
|
||||||
|
# variables in your default LIBS, CFLAGS, and CC:
|
||||||
|
#
|
||||||
|
# LIBS="$PTHREAD_LIBS $LIBS"
|
||||||
|
# CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
|
||||||
|
# CC="$PTHREAD_CC"
|
||||||
|
#
|
||||||
|
# In addition, if the PTHREAD_CREATE_JOINABLE thread-attribute constant
|
||||||
|
# has a nonstandard name, defines PTHREAD_CREATE_JOINABLE to that name
|
||||||
|
# (e.g. PTHREAD_CREATE_UNDETACHED on AIX).
|
||||||
|
#
|
||||||
|
# Also HAVE_PTHREAD_PRIO_INHERIT is defined if pthread is found and the
|
||||||
|
# PTHREAD_PRIO_INHERIT symbol is defined when compiling with
|
||||||
|
# PTHREAD_CFLAGS.
|
||||||
|
#
|
||||||
|
# ACTION-IF-FOUND is a list of shell commands to run if a threads library
|
||||||
|
# is found, and ACTION-IF-NOT-FOUND is a list of commands to run it if it
|
||||||
|
# is not found. If ACTION-IF-FOUND is not specified, the default action
|
||||||
|
# will define HAVE_PTHREAD.
|
||||||
|
#
|
||||||
|
# Please let the authors know if this macro fails on any platform, or if
|
||||||
|
# you have any other suggestions or comments. This macro was based on work
|
||||||
|
# by SGJ on autoconf scripts for FFTW (http://www.fftw.org/) (with help
|
||||||
|
# from M. Frigo), as well as ac_pthread and hb_pthread macros posted by
|
||||||
|
# Alejandro Forero Cuervo to the autoconf macro repository. We are also
|
||||||
|
# grateful for the helpful feedback of numerous users.
|
||||||
|
#
|
||||||
|
# Updated for Autoconf 2.68 by Daniel Richard G.
|
||||||
|
#
|
||||||
|
# LICENSE
|
||||||
|
#
|
||||||
|
# Copyright (c) 2008 Steven G. Johnson <stevenj@alum.mit.edu>
|
||||||
|
# Copyright (c) 2011 Daniel Richard G. <skunk@iSKUNK.ORG>
|
||||||
|
#
|
||||||
|
# This program is free software: you can redistribute it and/or modify it
|
||||||
|
# under the terms of the GNU General Public License as published by the
|
||||||
|
# Free Software Foundation, either version 3 of the License, or (at your
|
||||||
|
# option) any later version.
|
||||||
|
#
|
||||||
|
# This program is distributed in the hope that it will be useful, but
|
||||||
|
# WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||||
|
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
|
||||||
|
# Public License for more details.
|
||||||
|
#
|
||||||
|
# You should have received a copy of the GNU General Public License along
|
||||||
|
# with this program. If not, see <http://www.gnu.org/licenses/>.
|
||||||
|
#
|
||||||
|
# As a special exception, the respective Autoconf Macro's copyright owner
|
||||||
|
# gives unlimited permission to copy, distribute and modify the configure
|
||||||
|
# scripts that are the output of Autoconf when processing the Macro. You
|
||||||
|
# need not follow the terms of the GNU General Public License when using
|
||||||
|
# or distributing such scripts, even though portions of the text of the
|
||||||
|
# Macro appear in them. The GNU General Public License (GPL) does govern
|
||||||
|
# all other use of the material that constitutes the Autoconf Macro.
|
||||||
|
#
|
||||||
|
# This special exception to the GPL applies to versions of the Autoconf
|
||||||
|
# Macro released by the Autoconf Archive. When you make and distribute a
|
||||||
|
# modified version of the Autoconf Macro, you may extend this special
|
||||||
|
# exception to the GPL to apply to your modified version as well.
|
||||||
|
|
||||||
|
#serial 21
|
||||||
|
|
||||||
|
AU_ALIAS([ACX_PTHREAD], [AX_PTHREAD])
|
||||||
|
AC_DEFUN([AX_PTHREAD], [
|
||||||
|
AC_REQUIRE([AC_CANONICAL_HOST])
|
||||||
|
AC_LANG_PUSH([C])
|
||||||
|
ax_pthread_ok=no
|
||||||
|
|
||||||
|
# We used to check for pthread.h first, but this fails if pthread.h
|
||||||
|
# requires special compiler flags (e.g. on True64 or Sequent).
|
||||||
|
# It gets checked for in the link test anyway.
|
||||||
|
|
||||||
|
# First of all, check if the user has set any of the PTHREAD_LIBS,
|
||||||
|
# etcetera environment variables, and if threads linking works using
|
||||||
|
# them:
|
||||||
|
if test x"$PTHREAD_LIBS$PTHREAD_CFLAGS" != x; then
|
||||||
|
save_CFLAGS="$CFLAGS"
|
||||||
|
CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
|
||||||
|
save_LIBS="$LIBS"
|
||||||
|
LIBS="$PTHREAD_LIBS $LIBS"
|
||||||
|
AC_MSG_CHECKING([for pthread_join in LIBS=$PTHREAD_LIBS with CFLAGS=$PTHREAD_CFLAGS])
|
||||||
|
AC_TRY_LINK_FUNC([pthread_join], [ax_pthread_ok=yes])
|
||||||
|
AC_MSG_RESULT([$ax_pthread_ok])
|
||||||
|
if test x"$ax_pthread_ok" = xno; then
|
||||||
|
PTHREAD_LIBS=""
|
||||||
|
PTHREAD_CFLAGS=""
|
||||||
|
fi
|
||||||
|
LIBS="$save_LIBS"
|
||||||
|
CFLAGS="$save_CFLAGS"
|
||||||
|
fi
|
||||||
|
|
||||||
|
# We must check for the threads library under a number of different
|
||||||
|
# names; the ordering is very important because some systems
|
||||||
|
# (e.g. DEC) have both -lpthread and -lpthreads, where one of the
|
||||||
|
# libraries is broken (non-POSIX).
|
||||||
|
|
||||||
|
# Create a list of thread flags to try. Items starting with a "-" are
|
||||||
|
# C compiler flags, and other items are library names, except for "none"
|
||||||
|
# which indicates that we try without any flags at all, and "pthread-config"
|
||||||
|
# which is a program returning the flags for the Pth emulation library.
|
||||||
|
|
||||||
|
ax_pthread_flags="pthreads none -Kthread -kthread lthread -pthread -pthreads -mthreads pthread --thread-safe -mt pthread-config"
|
||||||
|
|
||||||
|
# The ordering *is* (sometimes) important. Some notes on the
|
||||||
|
# individual items follow:
|
||||||
|
|
||||||
|
# pthreads: AIX (must check this before -lpthread)
|
||||||
|
# none: in case threads are in libc; should be tried before -Kthread and
|
||||||
|
# other compiler flags to prevent continual compiler warnings
|
||||||
|
# -Kthread: Sequent (threads in libc, but -Kthread needed for pthread.h)
|
||||||
|
# -kthread: FreeBSD kernel threads (preferred to -pthread since SMP-able)
|
||||||
|
# lthread: LinuxThreads port on FreeBSD (also preferred to -pthread)
|
||||||
|
# -pthread: Linux/gcc (kernel threads), BSD/gcc (userland threads)
|
||||||
|
# -pthreads: Solaris/gcc
|
||||||
|
# -mthreads: Mingw32/gcc, Lynx/gcc
|
||||||
|
# -mt: Sun Workshop C (may only link SunOS threads [-lthread], but it
|
||||||
|
# doesn't hurt to check since this sometimes defines pthreads too;
|
||||||
|
# also defines -D_REENTRANT)
|
||||||
|
# ... -mt is also the pthreads flag for HP/aCC
|
||||||
|
# pthread: Linux, etcetera
|
||||||
|
# --thread-safe: KAI C++
|
||||||
|
# pthread-config: use pthread-config program (for GNU Pth library)
|
||||||
|
|
||||||
|
case ${host_os} in
|
||||||
|
solaris*)
|
||||||
|
|
||||||
|
# On Solaris (at least, for some versions), libc contains stubbed
|
||||||
|
# (non-functional) versions of the pthreads routines, so link-based
|
||||||
|
# tests will erroneously succeed. (We need to link with -pthreads/-mt/
|
||||||
|
# -lpthread.) (The stubs are missing pthread_cleanup_push, or rather
|
||||||
|
# a function called by this macro, so we could check for that, but
|
||||||
|
# who knows whether they'll stub that too in a future libc.) So,
|
||||||
|
# we'll just look for -pthreads and -lpthread first:
|
||||||
|
|
||||||
|
ax_pthread_flags="-pthreads pthread -mt -pthread $ax_pthread_flags"
|
||||||
|
;;
|
||||||
|
|
||||||
|
darwin*)
|
||||||
|
ax_pthread_flags="-pthread $ax_pthread_flags"
|
||||||
|
;;
|
||||||
|
esac
|
||||||
|
|
||||||
|
# Clang doesn't consider unrecognized options an error unless we specify
|
||||||
|
# -Werror. We throw in some extra Clang-specific options to ensure that
|
||||||
|
# this doesn't happen for GCC, which also accepts -Werror.
|
||||||
|
|
||||||
|
AC_MSG_CHECKING([if compiler needs -Werror to reject unknown flags])
|
||||||
|
save_CFLAGS="$CFLAGS"
|
||||||
|
ax_pthread_extra_flags="-Werror"
|
||||||
|
CFLAGS="$CFLAGS $ax_pthread_extra_flags -Wunknown-warning-option -Wsizeof-array-argument"
|
||||||
|
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([int foo(void);],[foo()])],
|
||||||
|
[AC_MSG_RESULT([yes])],
|
||||||
|
[ax_pthread_extra_flags=
|
||||||
|
AC_MSG_RESULT([no])])
|
||||||
|
CFLAGS="$save_CFLAGS"
|
||||||
|
|
||||||
|
if test x"$ax_pthread_ok" = xno; then
|
||||||
|
for flag in $ax_pthread_flags; do
|
||||||
|
|
||||||
|
case $flag in
|
||||||
|
none)
|
||||||
|
AC_MSG_CHECKING([whether pthreads work without any flags])
|
||||||
|
;;
|
||||||
|
|
||||||
|
-*)
|
||||||
|
AC_MSG_CHECKING([whether pthreads work with $flag])
|
||||||
|
PTHREAD_CFLAGS="$flag"
|
||||||
|
;;
|
||||||
|
|
||||||
|
pthread-config)
|
||||||
|
AC_CHECK_PROG([ax_pthread_config], [pthread-config], [yes], [no])
|
||||||
|
if test x"$ax_pthread_config" = xno; then continue; fi
|
||||||
|
PTHREAD_CFLAGS="`pthread-config --cflags`"
|
||||||
|
PTHREAD_LIBS="`pthread-config --ldflags` `pthread-config --libs`"
|
||||||
|
;;
|
||||||
|
|
||||||
|
*)
|
||||||
|
AC_MSG_CHECKING([for the pthreads library -l$flag])
|
||||||
|
PTHREAD_LIBS="-l$flag"
|
||||||
|
;;
|
||||||
|
esac
|
||||||
|
|
||||||
|
save_LIBS="$LIBS"
|
||||||
|
save_CFLAGS="$CFLAGS"
|
||||||
|
LIBS="$PTHREAD_LIBS $LIBS"
|
||||||
|
CFLAGS="$CFLAGS $PTHREAD_CFLAGS $ax_pthread_extra_flags"
|
||||||
|
|
||||||
|
# Check for various functions. We must include pthread.h,
|
||||||
|
# since some functions may be macros. (On the Sequent, we
|
||||||
|
# need a special flag -Kthread to make this header compile.)
|
||||||
|
# We check for pthread_join because it is in -lpthread on IRIX
|
||||||
|
# while pthread_create is in libc. We check for pthread_attr_init
|
||||||
|
# due to DEC craziness with -lpthreads. We check for
|
||||||
|
# pthread_cleanup_push because it is one of the few pthread
|
||||||
|
# functions on Solaris that doesn't have a non-functional libc stub.
|
||||||
|
# We try pthread_create on general principles.
|
||||||
|
AC_LINK_IFELSE([AC_LANG_PROGRAM([#include <pthread.h>
|
||||||
|
static void routine(void *a) { a = 0; }
|
||||||
|
static void *start_routine(void *a) { return a; }],
|
||||||
|
[pthread_t th; pthread_attr_t attr;
|
||||||
|
pthread_create(&th, 0, start_routine, 0);
|
||||||
|
pthread_join(th, 0);
|
||||||
|
pthread_attr_init(&attr);
|
||||||
|
pthread_cleanup_push(routine, 0);
|
||||||
|
pthread_cleanup_pop(0) /* ; */])],
|
||||||
|
[ax_pthread_ok=yes],
|
||||||
|
[])
|
||||||
|
|
||||||
|
LIBS="$save_LIBS"
|
||||||
|
CFLAGS="$save_CFLAGS"
|
||||||
|
|
||||||
|
AC_MSG_RESULT([$ax_pthread_ok])
|
||||||
|
if test "x$ax_pthread_ok" = xyes; then
|
||||||
|
break;
|
||||||
|
fi
|
||||||
|
|
||||||
|
PTHREAD_LIBS=""
|
||||||
|
PTHREAD_CFLAGS=""
|
||||||
|
done
|
||||||
|
fi
|
||||||
|
|
||||||
|
# Various other checks:
|
||||||
|
if test "x$ax_pthread_ok" = xyes; then
|
||||||
|
save_LIBS="$LIBS"
|
||||||
|
LIBS="$PTHREAD_LIBS $LIBS"
|
||||||
|
save_CFLAGS="$CFLAGS"
|
||||||
|
CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
|
||||||
|
|
||||||
|
# Detect AIX lossage: JOINABLE attribute is called UNDETACHED.
|
||||||
|
AC_MSG_CHECKING([for joinable pthread attribute])
|
||||||
|
attr_name=unknown
|
||||||
|
for attr in PTHREAD_CREATE_JOINABLE PTHREAD_CREATE_UNDETACHED; do
|
||||||
|
AC_LINK_IFELSE([AC_LANG_PROGRAM([#include <pthread.h>],
|
||||||
|
[int attr = $attr; return attr /* ; */])],
|
||||||
|
[attr_name=$attr; break],
|
||||||
|
[])
|
||||||
|
done
|
||||||
|
AC_MSG_RESULT([$attr_name])
|
||||||
|
if test "$attr_name" != PTHREAD_CREATE_JOINABLE; then
|
||||||
|
AC_DEFINE_UNQUOTED([PTHREAD_CREATE_JOINABLE], [$attr_name],
|
||||||
|
[Define to necessary symbol if this constant
|
||||||
|
uses a non-standard name on your system.])
|
||||||
|
fi
|
||||||
|
|
||||||
|
AC_MSG_CHECKING([if more special flags are required for pthreads])
|
||||||
|
flag=no
|
||||||
|
case ${host_os} in
|
||||||
|
aix* | freebsd* | darwin*) flag="-D_THREAD_SAFE";;
|
||||||
|
osf* | hpux*) flag="-D_REENTRANT";;
|
||||||
|
solaris*)
|
||||||
|
if test "$GCC" = "yes"; then
|
||||||
|
flag="-D_REENTRANT"
|
||||||
|
else
|
||||||
|
# TODO: What about Clang on Solaris?
|
||||||
|
flag="-mt -D_REENTRANT"
|
||||||
|
fi
|
||||||
|
;;
|
||||||
|
esac
|
||||||
|
AC_MSG_RESULT([$flag])
|
||||||
|
if test "x$flag" != xno; then
|
||||||
|
PTHREAD_CFLAGS="$flag $PTHREAD_CFLAGS"
|
||||||
|
fi
|
||||||
|
|
||||||
|
AC_CACHE_CHECK([for PTHREAD_PRIO_INHERIT],
|
||||||
|
[ax_cv_PTHREAD_PRIO_INHERIT], [
|
||||||
|
AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <pthread.h>]],
|
||||||
|
[[int i = PTHREAD_PRIO_INHERIT;]])],
|
||||||
|
[ax_cv_PTHREAD_PRIO_INHERIT=yes],
|
||||||
|
[ax_cv_PTHREAD_PRIO_INHERIT=no])
|
||||||
|
])
|
||||||
|
AS_IF([test "x$ax_cv_PTHREAD_PRIO_INHERIT" = "xyes"],
|
||||||
|
[AC_DEFINE([HAVE_PTHREAD_PRIO_INHERIT], [1], [Have PTHREAD_PRIO_INHERIT.])])
|
||||||
|
|
||||||
|
LIBS="$save_LIBS"
|
||||||
|
CFLAGS="$save_CFLAGS"
|
||||||
|
|
||||||
|
# More AIX lossage: compile with *_r variant
|
||||||
|
if test "x$GCC" != xyes; then
|
||||||
|
case $host_os in
|
||||||
|
aix*)
|
||||||
|
AS_CASE(["x/$CC"],
|
||||||
|
[x*/c89|x*/c89_128|x*/c99|x*/c99_128|x*/cc|x*/cc128|x*/xlc|x*/xlc_v6|x*/xlc128|x*/xlc128_v6],
|
||||||
|
[#handle absolute path differently from PATH based program lookup
|
||||||
|
AS_CASE(["x$CC"],
|
||||||
|
[x/*],
|
||||||
|
[AS_IF([AS_EXECUTABLE_P([${CC}_r])],[PTHREAD_CC="${CC}_r"])],
|
||||||
|
[AC_CHECK_PROGS([PTHREAD_CC],[${CC}_r],[$CC])])])
|
||||||
|
;;
|
||||||
|
esac
|
||||||
|
fi
|
||||||
|
fi
|
||||||
|
|
||||||
|
test -n "$PTHREAD_CC" || PTHREAD_CC="$CC"
|
||||||
|
|
||||||
|
AC_SUBST([PTHREAD_LIBS])
|
||||||
|
AC_SUBST([PTHREAD_CFLAGS])
|
||||||
|
AC_SUBST([PTHREAD_CC])
|
||||||
|
|
||||||
|
# Finally, execute ACTION-IF-FOUND/ACTION-IF-NOT-FOUND:
|
||||||
|
if test x"$ax_pthread_ok" = xyes; then
|
||||||
|
ifelse([$1],,[AC_DEFINE([HAVE_PTHREAD],[1],[Define if you have POSIX threads libraries and header files.])],[$1])
|
||||||
|
:
|
||||||
|
else
|
||||||
|
ax_pthread_ok=no
|
||||||
|
$2
|
||||||
|
fi
|
||||||
|
AC_LANG_POP
|
||||||
|
])dnl AX_PTHREAD
|
Some files were not shown because too many files have changed in this diff Show More
Loading…
Reference in New Issue
Block a user