Squashed 'external/libwebp/libwebp/' content from commit dd7364c3c

git-subtree-dir: external/libwebp/libwebp
git-subtree-split: dd7364c3cefe0f5c0b3c18c3b1887d353f90fc1f
This commit is contained in:
2023-08-02 14:57:22 +02:00
commit 67653bbe50
331 changed files with 116119 additions and 0 deletions

18
cmake/WebPConfig.cmake.in Normal file
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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)

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cmake/config.h.in Normal file
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/* 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
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# 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()

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# 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})