# Conflicts: # backends/imgui_impl_sdl3.cpp # backends/imgui_impl_sdl3.h # docs/CHANGELOG.txt # imgui_internal.hfeatures/sdl_renderer3_multiviewports
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# 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: |
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# 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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# 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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