mirror of
https://git.dev.opencascade.org/repos/occt.git
synced 2025-04-03 17:56:21 +03:00
565baee64b
Handled __EMSCRIPTEN__ macros to:
- Workaround atomics (__GCC_HAVE_SYNC_COMPARE_AND_SWAP_4 is undefined, but GCC atomics are provided).
- Suppress non-standard header <sys/signal.h> warning.
- Return OSD_LinuxREDHAT.
- Avoid inclusion of XLib headers.
- Skip fontconfig library.
- Enable EGL+GLES path (translated by Emscripten into WebGL).
- Skip eglCreatePbufferSurface() not implemented by Emscripten EGL.
Fixed Graphic3d_Vec4.hxx usage within Quantity_ColorRGBA.hxx.
OpenGl_ShaderManager::defaultGlslVersion() now prefers GLSL 300 es when WebGL 2.0 is available,
as there no any OpenGL ES greater than 3.0 emulation so far.
Shaders_Declarations.glsl - added workaround for GLSL compilation on WebGL 1.0
by defining Light properties accessors as macros instead of functions
('[]' : Index expression must be constant).
OpenGl_FrameBuffer::Init() - added workaround for initialization of GL_DEPTH24_STENCIL8
depth-stencil attachment on WebGL 1.0 + GL_WEBGL_depth_texture extension.
OpenGl_Context::Vec4FromQuantityColor() now considers myIsSRgbActive flag
to handle use case, when Immediate Layer is drawn directly into window buffer,
which is not sRGB-ready.
Added new sample - OCCT WebGL viewer.
67 lines
2.5 KiB
CMake
67 lines
2.5 KiB
CMake
cmake_minimum_required(VERSION 3.2)
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project(occt-webgl-sample)
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set(CMAKE_CXX_STANDARD 11)
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set(APP_VERSION_MAJOR 1)
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set(APP_VERSION_MINOR 0)
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set(APP_TARGET occt-webgl-sample)
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# customize build
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set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -s WASM=1")
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set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -s USE_WEBGL2=1")
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set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -s ALLOW_MEMORY_GROWTH=1")
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#set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -s SAFE_HEAP=1")
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#set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -s NO_EXIT_RUNTIME=1")
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#set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -s TOTAL_MEMORY=16MB")
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#set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -s ABORTING_MALLOC=0")
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#set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -s FORCE_FILESYSTEM=1")
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#set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} --preload-file myFile")
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INCLUDE_DIRECTORIES(${PROJECT_SOURCE_DIR})
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file(GLOB SOURCES
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*.h
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*.cpp
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)
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source_group ("Headers" FILES
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WasmOcctView.h)
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source_group ("Sources" FILES
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WasmOcctView.cpp
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main.cpp)
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# FreeType
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find_package(freetype REQUIRED NO_DEFAULT_PATH)
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if(freetype_FOUND)
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message (STATUS "Using FreeType from \"${freetype_DIR}\"" )
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else()
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message(WARNING "Could not find FreeType, please set freetype_DIR variable." )
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endif()
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# Open CASCADE Technology
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find_package(OpenCASCADE REQUIRED NO_DEFAULT_PATH)
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if(OpenCASCADE_FOUND)
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message (STATUS "Using OpenCASCADE from \"${OpenCASCADE_DIR}\"" )
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INCLUDE_DIRECTORIES(${OpenCASCADE_INCLUDE_DIR})
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LINK_DIRECTORIES(${OpenCASCADE_LIBRARY_DIR})
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else()
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message(WARNING "Could not find OpenCASCADE, please set OpenCASCADE_DIR variable." )
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set(OCCT_LIBRARY_DIR)
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set(OCCT_BIN_DIR)
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endif()
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set(OpenCASCADE_LIBS TKRWMesh TKBinXCAF TKBin TKBinL TKOpenGl TKXCAF TKVCAF TKCAF TKV3d TKHLR TKMesh TKService TKShHealing TKPrim TKTopAlgo TKGeomAlgo TKBRep TKGeomBase TKG3d TKG2d TKMath TKLCAF TKCDF TKernel)
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add_executable(${APP_TARGET} ${SOURCES})
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target_link_libraries(
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${APP_TARGET}
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${OpenCASCADE_LIBS}
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freetype
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)
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set_target_properties(${APP_TARGET} PROPERTIES LINK_FLAGS "-s EXPORTED_FUNCTIONS=['_main','_onFileDataRead'] -s EXTRA_EXPORTED_RUNTIME_METHODS=['ccall','cwrap']")
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install(TARGETS ${PROJECT_NAME} RUNTIME DESTINATION "${CMAKE_INSTALL_PREFIX}" LIBRARY DESTINATION "${CMAKE_INSTALL_PREFIX}")
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install(FILES ${CMAKE_CURRENT_BINARY_DIR}/${PROJECT_NAME}.wasm DESTINATION ${CMAKE_INSTALL_PREFIX})
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install(FILES occt-webgl-sample.html DESTINATION ${CMAKE_INSTALL_PREFIX})
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install(FILES ${OpenCASCADE_RESOURCE_DIR}/DrawResources/OCC_logo.png DESTINATION ${CMAKE_INSTALL_PREFIX})
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install(FILES ${OpenCASCADE_RESOURCE_DIR}/DrawResources/lamp.ico DESTINATION ${CMAKE_INSTALL_PREFIX})
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