Squashed 'external/imgui/imgui/' changes from b475309fa1e..6ccc561a2ab
6ccc561a2ab Version 1.90.6 0d483a1c89f Backends: OpenGL3: Update loader for Linux to support EGL/GLVND. (#7562) 92df32d3390 Backends: OpenGL3: minor update of generated loader to match latest downloaded glcorearb.h/khrplatform.h files. 1ab1af80c74 Backends: Win32: Facepalm revert part of d15574c + additional commentary (#6275) d15574ce2a5 Backends: Win32: Removed silent return when calling ImGui_ImplWin32_WndProcHandler() with no active context! (#6275) d4495446d53 Windows, Internal: added experimental SkipRefresh mode. (#3515, #4763, #7556, #5116 , #4076, #2749, #2268) 0b309471f2e Windows: Changed default ClipRect to extend to windows' left and right borders. (#3312, #7540, #3756, #6170, #6365) 0c9c12c1bb9 InnerClipRect use ImFloor() matching docking branch (fix c41868531 for #6861, #2884, followed by rename 94da5842) 6ebbecc6a08 Realign assignments. fc4d818e170 Tables: Angled headers: added TableAngledHeadersTextAlign, ImGuiStyleVar_TableAngledHeadersTextAlign. (#6917) 4bb75671414 Tables: Angled headers: fixed multi-line label display when angle is flipped. (#6917) b30df8890de Table: Angled Headers: internal refactor to facilitate changing angled header bg and text colors per column. (#6917) 558c57a086c Fixed static analyzer warning "Pointer to local array 'overlay_buf' is stored outside the scope". Technically not used outside that scope, but best to play nice. 50b2ff0bf03 ImGuiIO: moved IMGUI_DISABLE_OBSOLETE_KEYIO block lower in the structure so other fields layout are not affected by it (#7534) 6ef4f67fa94 ImDrawList: moved cold fields lower in the structure so hot fields are closer to each others + better packed ImGuiNavItemData a60387a3c25 Backends: GLFW: Add define guards for glfw native defines. (#7536) 913151caa89 Demo: move progress bars to their own section. c895e987adf ProgressBar: added indeterminate mode by passing an animated negative value. (#5316, #5370, #1901) b8a44b198c9 TreeNode: added ImGuiTreeNodeFlags_SpanTextWidth. (#6937) baaaaea9e91 Demo: tweak TreeNode demo. da18fcb7aed Internals: ensure ButtonBehavior() is called with non 0 id. b720c0f541c Backends: Vulkan: Added convenience support for Volk via IMGUI_IMPL_VULKAN_USE_VOLK define. (#6582, #4854) 07e8ff9a8d4 Backends: Win32: Fixed a warning + moved header cruft below Changelog. fa0120ea5ea Windows: Fixed subsequent Begin() append calls from setting last item information for title-bar. (#7506, #823) 361432a0bb2 TreeNode: fixed layout so that TreeNode("") or TreeNode("##HiddenLabel") may properly be used with SameLine(0,0). (#7505, #282) eba46cb0d22 Drag and Drop: assert when nesting BeginDragDropSource() and BeginDragDropTarget() (#7504) + update Gallery links 9ec299ebe31 Backends: OpenGL: Detect ES3 contexts on desktop based on version string, (#7447) 7b8107e7c84 Examples: GLFW+WebGPU: Rename example_emscripten_wgpu/ to example_glfw_wgpu/ (#7435, #7132) 648278cd62f Examples: GLFW+WebGPU: Amends. (#7435, #7132) 80a5fdb1089 Examples: GLFW+WebGPU: Fixed condition for when to recreate swapchain. (#7435, #7132) f9df6bf6622 Examples: GLFW+WebGPU: added support for WebGPU-native/Dawn (#7435, #7132) git-subtree-dir: external/imgui/imgui git-subtree-split: 6ccc561a2ab497ad4ae6ee1dbd3b992ffada35cb
This commit is contained in:
100
examples/example_glfw_wgpu/CMakeLists.txt
Normal file
100
examples/example_glfw_wgpu/CMakeLists.txt
Normal file
@ -0,0 +1,100 @@
|
||||
# Building for desktop (WebGPU-native) with Dawn:
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||||
# 1. git clone https://github.com/google/dawn dawn
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# 2. cmake -B build -DIMGUI_DAWN_DIR=dawn
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# 3. cmake --build build
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# The resulting binary will be found at one of the following locations:
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# * build/Debug/example_glfw_wgpu[.exe]
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# * build/example_glfw_wgpu[.exe]
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|
||||
# Building for Emscripten:
|
||||
# 1. Install Emscripten SDK following the instructions: https://emscripten.org/docs/getting_started/downloads.html
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||||
# 2. Install Ninja build system
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# 3. emcmake cmake -G Ninja -B build
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# 3. cmake --build build
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# 4. emrun build/index.html
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cmake_minimum_required(VERSION 3.10.2)
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project(imgui_example_glfw_wgpu C CXX)
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if(NOT CMAKE_BUILD_TYPE)
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set(CMAKE_BUILD_TYPE Debug CACHE STRING "" FORCE)
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endif()
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set(CMAKE_CXX_STANDARD 17) # Dawn requires C++17
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# Dear ImGui
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set(IMGUI_DIR ../../)
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# Libraries
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if(EMSCRIPTEN)
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set(LIBRARIES glfw)
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add_compile_options(-sDISABLE_EXCEPTION_CATCHING=1 -DIMGUI_DISABLE_FILE_FUNCTIONS=1)
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else()
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# Dawn wgpu desktop
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set(DAWN_FETCH_DEPENDENCIES ON)
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set(IMGUI_DAWN_DIR CACHE PATH "Path to Dawn repository")
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if (NOT IMGUI_DAWN_DIR)
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message(FATAL_ERROR "Please specify the Dawn repository by setting IMGUI_DAWN_DIR")
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endif()
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option(DAWN_FETCH_DEPENDENCIES "Use fetch_dawn_dependencies.py as an alternative to using depot_tools" ON)
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|
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# Dawn builds many things by default - disable things we don't need
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option(DAWN_BUILD_SAMPLES "Enables building Dawn's samples" OFF)
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option(TINT_BUILD_CMD_TOOLS "Build the Tint command line tools" OFF)
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option(TINT_BUILD_DOCS "Build documentation" OFF)
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option(TINT_BUILD_TESTS "Build tests" OFF)
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if (NOT APPLE)
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option(TINT_BUILD_MSL_WRITER "Build the MSL output writer" OFF)
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endif()
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if(WIN32)
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option(TINT_BUILD_SPV_READER "Build the SPIR-V input reader" OFF)
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option(TINT_BUILD_WGSL_READER "Build the WGSL input reader" ON)
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option(TINT_BUILD_GLSL_WRITER "Build the GLSL output writer" OFF)
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option(TINT_BUILD_GLSL_VALIDATOR "Build the GLSL output validator" OFF)
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option(TINT_BUILD_SPV_WRITER "Build the SPIR-V output writer" OFF)
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option(TINT_BUILD_WGSL_WRITER "Build the WGSL output writer" ON)
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endif()
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add_subdirectory("${IMGUI_DAWN_DIR}" "${CMAKE_CURRENT_BINARY_DIR}/dawn" EXCLUDE_FROM_ALL)
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set(LIBRARIES webgpu_dawn webgpu_cpp webgpu_glfw glfw)
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endif()
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add_executable(example_glfw_wgpu
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main.cpp
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# backend files
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${IMGUI_DIR}/backends/imgui_impl_glfw.cpp
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${IMGUI_DIR}/backends/imgui_impl_wgpu.cpp
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# Dear ImGui files
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${IMGUI_DIR}/imgui.cpp
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${IMGUI_DIR}/imgui_draw.cpp
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${IMGUI_DIR}/imgui_demo.cpp
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${IMGUI_DIR}/imgui_tables.cpp
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${IMGUI_DIR}/imgui_widgets.cpp
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)
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target_include_directories(example_glfw_wgpu PUBLIC
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${IMGUI_DIR}
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${IMGUI_DIR}/backends
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)
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target_link_libraries(example_glfw_wgpu PUBLIC ${LIBRARIES})
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# Emscripten settings
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if(EMSCRIPTEN)
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target_link_options(example_glfw_wgpu PRIVATE
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"-sUSE_WEBGPU=1"
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"-sUSE_GLFW=3"
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"-sWASM=1"
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"-sALLOW_MEMORY_GROWTH=1"
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"-sNO_EXIT_RUNTIME=0"
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"-sASSERTIONS=1"
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"-sDISABLE_EXCEPTION_CATCHING=1"
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"-sNO_FILESYSTEM=1"
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)
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set_target_properties(example_glfw_wgpu PROPERTIES OUTPUT_NAME "index")
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# copy our custom index.html to build directory
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add_custom_command(TARGET example_glfw_wgpu POST_BUILD
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COMMAND ${CMAKE_COMMAND} -E copy_if_different "${CMAKE_CURRENT_LIST_DIR}/web/index.html" $<TARGET_FILE_DIR:example_glfw_wgpu>
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)
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endif()
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88
examples/example_glfw_wgpu/Makefile.emscripten
Normal file
88
examples/example_glfw_wgpu/Makefile.emscripten
Normal file
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||||
#
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||||
# Makefile to use with emscripten
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||||
# See https://emscripten.org/docs/getting_started/downloads.html
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||||
# for installation instructions.
|
||||
#
|
||||
# This Makefile assumes you have loaded emscripten's environment.
|
||||
# (On Windows, you may need to execute emsdk_env.bat or encmdprompt.bat ahead)
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||||
#
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# Running `make` will produce three files:
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||||
# - web/index.html (current stored in the repository)
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# - web/index.js
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# - web/index.wasm
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#
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||||
# All three are needed to run the demo.
|
||||
|
||||
CC = emcc
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||||
CXX = em++
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WEB_DIR = web
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EXE = $(WEB_DIR)/index.js
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IMGUI_DIR = ../..
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SOURCES = main.cpp
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||||
SOURCES += $(IMGUI_DIR)/imgui.cpp $(IMGUI_DIR)/imgui_demo.cpp $(IMGUI_DIR)/imgui_draw.cpp $(IMGUI_DIR)/imgui_tables.cpp $(IMGUI_DIR)/imgui_widgets.cpp
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||||
SOURCES += $(IMGUI_DIR)/backends/imgui_impl_glfw.cpp $(IMGUI_DIR)/backends/imgui_impl_wgpu.cpp
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OBJS = $(addsuffix .o, $(basename $(notdir $(SOURCES))))
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||||
UNAME_S := $(shell uname -s)
|
||||
CPPFLAGS =
|
||||
LDFLAGS =
|
||||
EMS =
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||||
|
||||
##---------------------------------------------------------------------
|
||||
## EMSCRIPTEN OPTIONS
|
||||
##---------------------------------------------------------------------
|
||||
|
||||
# ("EMS" options gets added to both CPPFLAGS and LDFLAGS, whereas some options are for linker only)
|
||||
EMS += -s DISABLE_EXCEPTION_CATCHING=1
|
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LDFLAGS += -s USE_GLFW=3 -s USE_WEBGPU=1
|
||||
LDFLAGS += -s WASM=1 -s ALLOW_MEMORY_GROWTH=1 -s NO_EXIT_RUNTIME=0 -s ASSERTIONS=1
|
||||
|
||||
# Emscripten allows preloading a file or folder to be accessible at runtime.
|
||||
# The Makefile for this example project suggests embedding the misc/fonts/ folder into our application, it will then be accessible as "/fonts"
|
||||
# See documentation for more details: https://emscripten.org/docs/porting/files/packaging_files.html
|
||||
# (Default value is 0. Set to 1 to enable file-system and include the misc/fonts/ folder as part of the build.)
|
||||
USE_FILE_SYSTEM ?= 0
|
||||
ifeq ($(USE_FILE_SYSTEM), 0)
|
||||
LDFLAGS += -s NO_FILESYSTEM=1
|
||||
CPPFLAGS += -DIMGUI_DISABLE_FILE_FUNCTIONS
|
||||
endif
|
||||
ifeq ($(USE_FILE_SYSTEM), 1)
|
||||
LDFLAGS += --no-heap-copy --preload-file ../../misc/fonts@/fonts
|
||||
endif
|
||||
|
||||
##---------------------------------------------------------------------
|
||||
## FINAL BUILD FLAGS
|
||||
##---------------------------------------------------------------------
|
||||
|
||||
CPPFLAGS += -I$(IMGUI_DIR) -I$(IMGUI_DIR)/backends
|
||||
#CPPFLAGS += -g
|
||||
CPPFLAGS += -Wall -Wformat -Os $(EMS)
|
||||
#LDFLAGS += --shell-file shell_minimal.html
|
||||
LDFLAGS += $(EMS)
|
||||
|
||||
##---------------------------------------------------------------------
|
||||
## BUILD RULES
|
||||
##---------------------------------------------------------------------
|
||||
|
||||
%.o:%.cpp
|
||||
$(CXX) $(CPPFLAGS) $(CXXFLAGS) -c -o $@ $<
|
||||
|
||||
%.o:$(IMGUI_DIR)/%.cpp
|
||||
$(CXX) $(CPPFLAGS) $(CXXFLAGS) -c -o $@ $<
|
||||
|
||||
%.o:$(IMGUI_DIR)/backends/%.cpp
|
||||
$(CXX) $(CPPFLAGS) $(CXXFLAGS) -c -o $@ $<
|
||||
|
||||
all: $(EXE)
|
||||
@echo Build complete for $(EXE)
|
||||
|
||||
$(WEB_DIR):
|
||||
mkdir $@
|
||||
|
||||
serve: all
|
||||
python3 -m http.server -d $(WEB_DIR)
|
||||
|
||||
$(EXE): $(OBJS) $(WEB_DIR)
|
||||
$(CXX) -o $@ $(OBJS) $(LDFLAGS)
|
||||
|
||||
clean:
|
||||
rm -f $(EXE) $(OBJS) $(WEB_DIR)/*.js $(WEB_DIR)/*.wasm $(WEB_DIR)/*.wasm.pre
|
||||
24
examples/example_glfw_wgpu/README.md
Normal file
24
examples/example_glfw_wgpu/README.md
Normal file
@ -0,0 +1,24 @@
|
||||
## How to Build
|
||||
|
||||
- You need to install Emscripten from https://emscripten.org/docs/getting_started/downloads.html, and have the environment variables set, as described in https://emscripten.org/docs/getting_started/downloads.html#installation-instructions
|
||||
|
||||
- Depending on your configuration, in Windows you may need to run `emsdk/emsdk_env.bat` in your console to access the Emscripten command-line tools.
|
||||
|
||||
- You may also refer to our [Continuous Integration setup](https://github.com/ocornut/imgui/tree/master/.github/workflows) for Emscripten setup.
|
||||
|
||||
- Then build using `make -f Makefile.emscripten` while in the `example_glfw_wgpu/` directory.
|
||||
|
||||
- Requires recent Emscripten as WGPU is still a work-in-progress API.
|
||||
|
||||
## How to Run
|
||||
|
||||
To run on a local machine:
|
||||
- Make sure your browse supports WGPU and it is enabled. WGPU is still WIP not enabled by default in most browser.
|
||||
- `make serve` will use Python3 to spawn a local webserver, you can then browse http://localhost:8000 to access your build.
|
||||
- Otherwise, generally you will need a local webserver:
|
||||
- Quoting [https://emscripten.org/docs/getting_started](https://emscripten.org/docs/getting_started/Tutorial.html#generating-html):<br>
|
||||
_"Unfortunately several browsers (including Chrome, Safari, and Internet Explorer) do not support file:// [XHR](https://emscripten.org/docs/site/glossary.html#term-xhr) requests, and can’t load extra files needed by the HTML (like a .wasm file, or packaged file data as mentioned lower down). For these browsers you’ll need to serve the files using a [local webserver](https://emscripten.org/docs/getting_started/FAQ.html#faq-local-webserver) and then open http://localhost:8000/hello.html."_
|
||||
- Emscripten SDK has a handy `emrun` command: `emrun web/example_glfw_wgpu.html --browser firefox` which will spawn a temporary local webserver (in Firefox). See https://emscripten.org/docs/compiling/Running-html-files-with-emrun.html for details.
|
||||
- You may use Python 3 builtin webserver: `python -m http.server -d web` (this is what `make serve` uses).
|
||||
- You may use Python 2 builtin webserver: `cd web && python -m SimpleHTTPServer`.
|
||||
- If you are accessing the files over a network, certain browsers, such as Firefox, will restrict Gamepad API access to secure contexts only (e.g. https only).
|
||||
345
examples/example_glfw_wgpu/main.cpp
Normal file
345
examples/example_glfw_wgpu/main.cpp
Normal file
@ -0,0 +1,345 @@
|
||||
// Dear ImGui: standalone example application for using GLFW + WebGPU
|
||||
// - Emscripten is supported for publishing on web. See https://emscripten.org.
|
||||
// - Dawn is used as a WebGPU implementation on desktop.
|
||||
|
||||
// Learn about Dear ImGui:
|
||||
// - FAQ https://dearimgui.com/faq
|
||||
// - Getting Started https://dearimgui.com/getting-started
|
||||
// - Documentation https://dearimgui.com/docs (same as your local docs/ folder).
|
||||
// - Introduction, links and more at the top of imgui.cpp
|
||||
|
||||
#include "imgui.h"
|
||||
#include "imgui_impl_glfw.h"
|
||||
#include "imgui_impl_wgpu.h"
|
||||
#include <stdio.h>
|
||||
|
||||
#ifdef __EMSCRIPTEN__
|
||||
#include <emscripten.h>
|
||||
#include <emscripten/html5.h>
|
||||
#include <emscripten/html5_webgpu.h>
|
||||
#else
|
||||
#include <webgpu/webgpu_glfw.h>
|
||||
#endif
|
||||
|
||||
#include <GLFW/glfw3.h>
|
||||
#include <webgpu/webgpu.h>
|
||||
#include <webgpu/webgpu_cpp.h>
|
||||
|
||||
// This example can also compile and run with Emscripten! See 'Makefile.emscripten' for details.
|
||||
#ifdef __EMSCRIPTEN__
|
||||
#include "../libs/emscripten/emscripten_mainloop_stub.h"
|
||||
#endif
|
||||
|
||||
// Global WebGPU required states
|
||||
static WGPUInstance wgpu_instance = nullptr;
|
||||
static WGPUDevice wgpu_device = nullptr;
|
||||
static WGPUSurface wgpu_surface = nullptr;
|
||||
static WGPUTextureFormat wgpu_preferred_fmt = WGPUTextureFormat_RGBA8Unorm;
|
||||
static WGPUSwapChain wgpu_swap_chain = nullptr;
|
||||
static int wgpu_swap_chain_width = 1280;
|
||||
static int wgpu_swap_chain_height = 720;
|
||||
|
||||
// Forward declarations
|
||||
static bool InitWGPU(GLFWwindow* window);
|
||||
static void CreateSwapChain(int width, int height);
|
||||
|
||||
static void glfw_error_callback(int error, const char* description)
|
||||
{
|
||||
printf("GLFW Error %d: %s\n", error, description);
|
||||
}
|
||||
|
||||
static void wgpu_error_callback(WGPUErrorType error_type, const char* message, void*)
|
||||
{
|
||||
const char* error_type_lbl = "";
|
||||
switch (error_type)
|
||||
{
|
||||
case WGPUErrorType_Validation: error_type_lbl = "Validation"; break;
|
||||
case WGPUErrorType_OutOfMemory: error_type_lbl = "Out of memory"; break;
|
||||
case WGPUErrorType_Unknown: error_type_lbl = "Unknown"; break;
|
||||
case WGPUErrorType_DeviceLost: error_type_lbl = "Device lost"; break;
|
||||
default: error_type_lbl = "Unknown";
|
||||
}
|
||||
printf("%s error: %s\n", error_type_lbl, message);
|
||||
}
|
||||
|
||||
// Main code
|
||||
int main(int, char**)
|
||||
{
|
||||
glfwSetErrorCallback(glfw_error_callback);
|
||||
if (!glfwInit())
|
||||
return 1;
|
||||
|
||||
// Make sure GLFW does not initialize any graphics context.
|
||||
// This needs to be done explicitly later.
|
||||
glfwWindowHint(GLFW_CLIENT_API, GLFW_NO_API);
|
||||
GLFWwindow* window = glfwCreateWindow(wgpu_swap_chain_width, wgpu_swap_chain_height, "Dear ImGui GLFW+WebGPU example", nullptr, nullptr);
|
||||
if (window == nullptr)
|
||||
return 1;
|
||||
|
||||
// Initialize the WebGPU environment
|
||||
if (!InitWGPU(window))
|
||||
{
|
||||
if (window)
|
||||
glfwDestroyWindow(window);
|
||||
glfwTerminate();
|
||||
return 1;
|
||||
}
|
||||
CreateSwapChain(wgpu_swap_chain_width, wgpu_swap_chain_height);
|
||||
glfwShowWindow(window);
|
||||
|
||||
// Setup Dear ImGui context
|
||||
IMGUI_CHECKVERSION();
|
||||
ImGui::CreateContext();
|
||||
ImGuiIO& io = ImGui::GetIO(); (void)io;
|
||||
io.ConfigFlags |= ImGuiConfigFlags_NavEnableKeyboard; // Enable Keyboard Controls
|
||||
io.ConfigFlags |= ImGuiConfigFlags_NavEnableGamepad; // Enable Gamepad Controls
|
||||
|
||||
// Setup Dear ImGui style
|
||||
ImGui::StyleColorsDark();
|
||||
//ImGui::StyleColorsLight();
|
||||
|
||||
// Setup Platform/Renderer backends
|
||||
ImGui_ImplGlfw_InitForOther(window, true);
|
||||
#ifdef __EMSCRIPTEN__
|
||||
ImGui_ImplGlfw_InstallEmscriptenCanvasResizeCallback("#canvas");
|
||||
#endif
|
||||
ImGui_ImplWGPU_InitInfo init_info;
|
||||
init_info.Device = wgpu_device;
|
||||
init_info.NumFramesInFlight = 3;
|
||||
init_info.RenderTargetFormat = wgpu_preferred_fmt;
|
||||
init_info.DepthStencilFormat = WGPUTextureFormat_Undefined;
|
||||
ImGui_ImplWGPU_Init(&init_info);
|
||||
|
||||
// Load Fonts
|
||||
// - If no fonts are loaded, dear imgui will use the default font. You can also load multiple fonts and use ImGui::PushFont()/PopFont() to select them.
|
||||
// - AddFontFromFileTTF() will return the ImFont* so you can store it if you need to select the font among multiple.
|
||||
// - If the file cannot be loaded, the function will return a nullptr. Please handle those errors in your application (e.g. use an assertion, or display an error and quit).
|
||||
// - The fonts will be rasterized at a given size (w/ oversampling) and stored into a texture when calling ImFontAtlas::Build()/GetTexDataAsXXXX(), which ImGui_ImplXXXX_NewFrame below will call.
|
||||
// - Use '#define IMGUI_ENABLE_FREETYPE' in your imconfig file to use Freetype for higher quality font rendering.
|
||||
// - Read 'docs/FONTS.md' for more instructions and details.
|
||||
// - Remember that in C/C++ if you want to include a backslash \ in a string literal you need to write a double backslash \\ !
|
||||
// - Emscripten allows preloading a file or folder to be accessible at runtime. See Makefile for details.
|
||||
//io.Fonts->AddFontDefault();
|
||||
#ifndef IMGUI_DISABLE_FILE_FUNCTIONS
|
||||
//io.Fonts->AddFontFromFileTTF("fonts/segoeui.ttf", 18.0f);
|
||||
//io.Fonts->AddFontFromFileTTF("fonts/DroidSans.ttf", 16.0f);
|
||||
//io.Fonts->AddFontFromFileTTF("fonts/Roboto-Medium.ttf", 16.0f);
|
||||
//io.Fonts->AddFontFromFileTTF("fonts/Cousine-Regular.ttf", 15.0f);
|
||||
//io.Fonts->AddFontFromFileTTF("fonts/ProggyTiny.ttf", 10.0f);
|
||||
//ImFont* font = io.Fonts->AddFontFromFileTTF("fonts/ArialUni.ttf", 18.0f, nullptr, io.Fonts->GetGlyphRangesJapanese());
|
||||
//IM_ASSERT(font != nullptr);
|
||||
#endif
|
||||
|
||||
// Our state
|
||||
bool show_demo_window = true;
|
||||
bool show_another_window = false;
|
||||
ImVec4 clear_color = ImVec4(0.45f, 0.55f, 0.60f, 1.00f);
|
||||
|
||||
// Main loop
|
||||
#ifdef __EMSCRIPTEN__
|
||||
// For an Emscripten build we are disabling file-system access, so let's not attempt to do a fopen() of the imgui.ini file.
|
||||
// You may manually call LoadIniSettingsFromMemory() to load settings from your own storage.
|
||||
io.IniFilename = nullptr;
|
||||
EMSCRIPTEN_MAINLOOP_BEGIN
|
||||
#else
|
||||
while (!glfwWindowShouldClose(window))
|
||||
#endif
|
||||
{
|
||||
// Poll and handle events (inputs, window resize, etc.)
|
||||
// You can read the io.WantCaptureMouse, io.WantCaptureKeyboard flags to tell if dear imgui wants to use your inputs.
|
||||
// - When io.WantCaptureMouse is true, do not dispatch mouse input data to your main application, or clear/overwrite your copy of the mouse data.
|
||||
// - When io.WantCaptureKeyboard is true, do not dispatch keyboard input data to your main application, or clear/overwrite your copy of the keyboard data.
|
||||
// Generally you may always pass all inputs to dear imgui, and hide them from your application based on those two flags.
|
||||
glfwPollEvents();
|
||||
|
||||
// React to changes in screen size
|
||||
int width, height;
|
||||
glfwGetFramebufferSize((GLFWwindow*)window, &width, &height);
|
||||
if (width != wgpu_swap_chain_width || height != wgpu_swap_chain_height)
|
||||
{
|
||||
ImGui_ImplWGPU_InvalidateDeviceObjects();
|
||||
CreateSwapChain(width, height);
|
||||
ImGui_ImplWGPU_CreateDeviceObjects();
|
||||
}
|
||||
|
||||
// Start the Dear ImGui frame
|
||||
ImGui_ImplWGPU_NewFrame();
|
||||
ImGui_ImplGlfw_NewFrame();
|
||||
ImGui::NewFrame();
|
||||
|
||||
// 1. Show the big demo window (Most of the sample code is in ImGui::ShowDemoWindow()! You can browse its code to learn more about Dear ImGui!).
|
||||
if (show_demo_window)
|
||||
ImGui::ShowDemoWindow(&show_demo_window);
|
||||
|
||||
// 2. Show a simple window that we create ourselves. We use a Begin/End pair to create a named window.
|
||||
{
|
||||
static float f = 0.0f;
|
||||
static int counter = 0;
|
||||
|
||||
ImGui::Begin("Hello, world!"); // Create a window called "Hello, world!" and append into it.
|
||||
|
||||
ImGui::Text("This is some useful text."); // Display some text (you can use a format strings too)
|
||||
ImGui::Checkbox("Demo Window", &show_demo_window); // Edit bools storing our window open/close state
|
||||
ImGui::Checkbox("Another Window", &show_another_window);
|
||||
|
||||
ImGui::SliderFloat("float", &f, 0.0f, 1.0f); // Edit 1 float using a slider from 0.0f to 1.0f
|
||||
ImGui::ColorEdit3("clear color", (float*)&clear_color); // Edit 3 floats representing a color
|
||||
|
||||
if (ImGui::Button("Button")) // Buttons return true when clicked (most widgets return true when edited/activated)
|
||||
counter++;
|
||||
ImGui::SameLine();
|
||||
ImGui::Text("counter = %d", counter);
|
||||
|
||||
ImGui::Text("Application average %.3f ms/frame (%.1f FPS)", 1000.0f / io.Framerate, io.Framerate);
|
||||
ImGui::End();
|
||||
}
|
||||
|
||||
// 3. Show another simple window.
|
||||
if (show_another_window)
|
||||
{
|
||||
ImGui::Begin("Another Window", &show_another_window); // Pass a pointer to our bool variable (the window will have a closing button that will clear the bool when clicked)
|
||||
ImGui::Text("Hello from another window!");
|
||||
if (ImGui::Button("Close Me"))
|
||||
show_another_window = false;
|
||||
ImGui::End();
|
||||
}
|
||||
|
||||
// Rendering
|
||||
ImGui::Render();
|
||||
|
||||
#ifndef __EMSCRIPTEN__
|
||||
// Tick needs to be called in Dawn to display validation errors
|
||||
wgpuDeviceTick(wgpu_device);
|
||||
#endif
|
||||
|
||||
WGPURenderPassColorAttachment color_attachments = {};
|
||||
color_attachments.depthSlice = WGPU_DEPTH_SLICE_UNDEFINED;
|
||||
color_attachments.loadOp = WGPULoadOp_Clear;
|
||||
color_attachments.storeOp = WGPUStoreOp_Store;
|
||||
color_attachments.clearValue = { clear_color.x * clear_color.w, clear_color.y * clear_color.w, clear_color.z * clear_color.w, clear_color.w };
|
||||
color_attachments.view = wgpuSwapChainGetCurrentTextureView(wgpu_swap_chain);
|
||||
|
||||
WGPURenderPassDescriptor render_pass_desc = {};
|
||||
render_pass_desc.colorAttachmentCount = 1;
|
||||
render_pass_desc.colorAttachments = &color_attachments;
|
||||
render_pass_desc.depthStencilAttachment = nullptr;
|
||||
|
||||
WGPUCommandEncoderDescriptor enc_desc = {};
|
||||
WGPUCommandEncoder encoder = wgpuDeviceCreateCommandEncoder(wgpu_device, &enc_desc);
|
||||
|
||||
WGPURenderPassEncoder pass = wgpuCommandEncoderBeginRenderPass(encoder, &render_pass_desc);
|
||||
ImGui_ImplWGPU_RenderDrawData(ImGui::GetDrawData(), pass);
|
||||
wgpuRenderPassEncoderEnd(pass);
|
||||
|
||||
WGPUCommandBufferDescriptor cmd_buffer_desc = {};
|
||||
WGPUCommandBuffer cmd_buffer = wgpuCommandEncoderFinish(encoder, &cmd_buffer_desc);
|
||||
WGPUQueue queue = wgpuDeviceGetQueue(wgpu_device);
|
||||
wgpuQueueSubmit(queue, 1, &cmd_buffer);
|
||||
|
||||
#ifndef __EMSCRIPTEN__
|
||||
wgpuSwapChainPresent(wgpu_swap_chain);
|
||||
#endif
|
||||
|
||||
wgpuTextureViewRelease(color_attachments.view);
|
||||
wgpuRenderPassEncoderRelease(pass);
|
||||
wgpuCommandEncoderRelease(encoder);
|
||||
wgpuCommandBufferRelease(cmd_buffer);
|
||||
}
|
||||
#ifdef __EMSCRIPTEN__
|
||||
EMSCRIPTEN_MAINLOOP_END;
|
||||
#endif
|
||||
|
||||
// Cleanup
|
||||
ImGui_ImplWGPU_Shutdown();
|
||||
ImGui_ImplGlfw_Shutdown();
|
||||
ImGui::DestroyContext();
|
||||
|
||||
glfwDestroyWindow(window);
|
||||
glfwTerminate();
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
#ifndef __EMSCRIPTEN__
|
||||
static WGPUAdapter RequestAdapter(WGPUInstance instance)
|
||||
{
|
||||
auto onAdapterRequestEnded = [](WGPURequestAdapterStatus status, WGPUAdapter adapter, const char* message, void* pUserData)
|
||||
{
|
||||
if (status == WGPURequestAdapterStatus_Success)
|
||||
*(WGPUAdapter*)(pUserData) = adapter;
|
||||
else
|
||||
printf("Could not get WebGPU adapter: %s\n", message);
|
||||
};
|
||||
WGPUAdapter adapter;
|
||||
wgpuInstanceRequestAdapter(instance, nullptr, onAdapterRequestEnded, (void*)&adapter);
|
||||
return adapter;
|
||||
}
|
||||
|
||||
static WGPUDevice RequestDevice(WGPUAdapter& adapter)
|
||||
{
|
||||
auto onDeviceRequestEnded = [](WGPURequestDeviceStatus status, WGPUDevice device, const char* message, void* pUserData)
|
||||
{
|
||||
if (status == WGPURequestDeviceStatus_Success)
|
||||
*(WGPUDevice*)(pUserData) = device;
|
||||
else
|
||||
printf("Could not get WebGPU device: %s\n", message);
|
||||
};
|
||||
WGPUDevice device;
|
||||
wgpuAdapterRequestDevice(adapter, nullptr, onDeviceRequestEnded, (void*)&device);
|
||||
return device;
|
||||
}
|
||||
#endif
|
||||
|
||||
static bool InitWGPU(GLFWwindow* window)
|
||||
{
|
||||
wgpu::Instance instance = wgpuCreateInstance(nullptr);
|
||||
|
||||
#ifdef __EMSCRIPTEN__
|
||||
wgpu_device = emscripten_webgpu_get_device();
|
||||
if (!wgpu_device)
|
||||
return false;
|
||||
#else
|
||||
WGPUAdapter adapter = RequestAdapter(instance.Get());
|
||||
if (!adapter)
|
||||
return false;
|
||||
wgpu_device = RequestDevice(adapter);
|
||||
#endif
|
||||
|
||||
#ifdef __EMSCRIPTEN__
|
||||
wgpu::SurfaceDescriptorFromCanvasHTMLSelector html_surface_desc = {};
|
||||
html_surface_desc.selector = "#canvas";
|
||||
wgpu::SurfaceDescriptor surface_desc = {};
|
||||
surface_desc.nextInChain = &html_surface_desc;
|
||||
wgpu::Surface surface = instance.CreateSurface(&surface_desc);
|
||||
|
||||
wgpu::Adapter adapter = {};
|
||||
wgpu_preferred_fmt = (WGPUTextureFormat)surface.GetPreferredFormat(adapter);
|
||||
#else
|
||||
wgpu::Surface surface = wgpu::glfw::CreateSurfaceForWindow(instance, window);
|
||||
if (!surface)
|
||||
return false;
|
||||
wgpu_preferred_fmt = WGPUTextureFormat_BGRA8Unorm;
|
||||
#endif
|
||||
|
||||
wgpu_instance = instance.MoveToCHandle();
|
||||
wgpu_surface = surface.MoveToCHandle();
|
||||
|
||||
wgpuDeviceSetUncapturedErrorCallback(wgpu_device, wgpu_error_callback, nullptr);
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
static void CreateSwapChain(int width, int height)
|
||||
{
|
||||
if (wgpu_swap_chain)
|
||||
wgpuSwapChainRelease(wgpu_swap_chain);
|
||||
wgpu_swap_chain_width = width;
|
||||
wgpu_swap_chain_height = height;
|
||||
WGPUSwapChainDescriptor swap_chain_desc = {};
|
||||
swap_chain_desc.usage = WGPUTextureUsage_RenderAttachment;
|
||||
swap_chain_desc.format = wgpu_preferred_fmt;
|
||||
swap_chain_desc.width = width;
|
||||
swap_chain_desc.height = height;
|
||||
swap_chain_desc.presentMode = WGPUPresentMode_Fifo;
|
||||
wgpu_swap_chain = wgpuDeviceCreateSwapChain(wgpu_device, wgpu_surface, &swap_chain_desc);
|
||||
}
|
||||
84
examples/example_glfw_wgpu/web/index.html
Normal file
84
examples/example_glfw_wgpu/web/index.html
Normal file
@ -0,0 +1,84 @@
|
||||
<!doctype html>
|
||||
<html lang="en-us">
|
||||
<head>
|
||||
<meta charset="utf-8">
|
||||
<meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, minimum-scale=1, user-scalable=no"/>
|
||||
<title>Dear ImGui Emscripten+GLFW+WebGPU example</title>
|
||||
<style>
|
||||
body { margin: 0; background-color: black }
|
||||
.emscripten {
|
||||
position: absolute;
|
||||
top: 0px;
|
||||
left: 0px;
|
||||
margin: 0px;
|
||||
border: 0;
|
||||
width: 100%;
|
||||
height: 100%;
|
||||
overflow: hidden;
|
||||
display: block;
|
||||
image-rendering: optimizeSpeed;
|
||||
image-rendering: -moz-crisp-edges;
|
||||
image-rendering: -o-crisp-edges;
|
||||
image-rendering: -webkit-optimize-contrast;
|
||||
image-rendering: optimize-contrast;
|
||||
image-rendering: crisp-edges;
|
||||
image-rendering: pixelated;
|
||||
-ms-interpolation-mode: nearest-neighbor;
|
||||
}
|
||||
</style>
|
||||
</head>
|
||||
<body>
|
||||
<canvas class="emscripten" id="canvas" oncontextmenu="event.preventDefault()"></canvas>
|
||||
<script type='text/javascript'>
|
||||
var Module;
|
||||
(async () => {
|
||||
Module = {
|
||||
preRun: [],
|
||||
postRun: [],
|
||||
print: (function() {
|
||||
return function(text) {
|
||||
text = Array.prototype.slice.call(arguments).join(' ');
|
||||
console.log(text);
|
||||
};
|
||||
})(),
|
||||
printErr: function(text) {
|
||||
text = Array.prototype.slice.call(arguments).join(' ');
|
||||
console.error(text);
|
||||
},
|
||||
canvas: (function() {
|
||||
var canvas = document.getElementById('canvas');
|
||||
//canvas.addEventListener("webglcontextlost", function(e) { alert('FIXME: WebGL context lost, please reload the page'); e.preventDefault(); }, false);
|
||||
return canvas;
|
||||
})(),
|
||||
setStatus: function(text) {
|
||||
console.log("status: " + text);
|
||||
},
|
||||
monitorRunDependencies: function(left) {
|
||||
// no run dependencies to log
|
||||
}
|
||||
};
|
||||
window.onerror = function() {
|
||||
console.log("onerror: " + event);
|
||||
};
|
||||
|
||||
// Initialize the graphics adapter
|
||||
{
|
||||
if (!navigator.gpu) {
|
||||
throw Error("WebGPU not supported.");
|
||||
}
|
||||
|
||||
const adapter = await navigator.gpu.requestAdapter();
|
||||
const device = await adapter.requestDevice();
|
||||
Module.preinitializedWebGPUDevice = device;
|
||||
}
|
||||
|
||||
{
|
||||
const js = document.createElement('script');
|
||||
js.async = true;
|
||||
js.src = "index.js";
|
||||
document.body.appendChild(js);
|
||||
}
|
||||
})();
|
||||
</script>
|
||||
</body>
|
||||
</html>
|
||||
Reference in New Issue
Block a user