feat(metal): precompiled internal shaders #78
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,92 @@ | ||
| # PlumeInternalShaders.cmake | ||
| # Internal shader compilation for Plume's built-in shaders (clear, resolve) | ||
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| # Build the file_to_c tool for the host system | ||
| function(plume_build_file_to_c) | ||
| if(TARGET plume_file_to_c) | ||
| return() | ||
| endif() | ||
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| set(FILE_TO_C_SOURCE "${CMAKE_CURRENT_FUNCTION_LIST_DIR}/tools/file_to_c.cpp") | ||
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| add_executable(plume_file_to_c ${FILE_TO_C_SOURCE}) | ||
| set_target_properties(plume_file_to_c PROPERTIES | ||
| RUNTIME_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}/plume_tools" | ||
| ) | ||
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| if(APPLE) | ||
| set_target_properties(plume_file_to_c PROPERTIES | ||
| XCODE_ATTRIBUTE_CODE_SIGN_IDENTITY "-" | ||
| ) | ||
| endif() | ||
| endfunction() | ||
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| # Compile Metal shaders to embedded C headers | ||
| function(plume_compile_metal_shaders TARGET_NAME) | ||
| if(NOT APPLE) | ||
| return() | ||
| endif() | ||
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| # Build the file_to_c tool | ||
| plume_build_file_to_c() | ||
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| # Get the shader source directory | ||
| set(SHADER_DIR "${CMAKE_CURRENT_FUNCTION_LIST_DIR}/../shaders") | ||
| set(OUTPUT_DIR "${CMAKE_BINARY_DIR}/plume_shaders") | ||
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| # Create output directory | ||
| file(MAKE_DIRECTORY "${OUTPUT_DIR}") | ||
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| # List of shaders to compile | ||
| set(PLUME_METAL_SHADERS | ||
| plume_clear | ||
| plume_resolve | ||
| ) | ||
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| set(GENERATED_SOURCES "") | ||
| set(GENERATED_HEADERS "") | ||
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| foreach(SHADER_NAME ${PLUME_METAL_SHADERS}) | ||
| set(SHADER_SOURCE "${SHADER_DIR}/${SHADER_NAME}.metal") | ||
| set(IR_OUTPUT "${OUTPUT_DIR}/${SHADER_NAME}.ir") | ||
| set(METALLIB_OUTPUT "${OUTPUT_DIR}/${SHADER_NAME}.metallib") | ||
| set(C_OUTPUT "${OUTPUT_DIR}/${SHADER_NAME}.metallib.c") | ||
| set(H_OUTPUT "${OUTPUT_DIR}/${SHADER_NAME}.metallib.h") | ||
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| # Compile Metal to IR | ||
| add_custom_command( | ||
| OUTPUT ${IR_OUTPUT} | ||
| COMMAND xcrun -sdk macosx metal -mmacosx-version-min=${CMAKE_OSX_DEPLOYMENT_TARGET} -o ${IR_OUTPUT} -c ${SHADER_SOURCE} | ||
| DEPENDS ${SHADER_SOURCE} | ||
| COMMENT "Compiling ${SHADER_NAME}.metal to IR" | ||
| VERBATIM | ||
| ) | ||
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| # Link IR to metallib | ||
| add_custom_command( | ||
| OUTPUT ${METALLIB_OUTPUT} | ||
| COMMAND xcrun -sdk macosx metallib ${IR_OUTPUT} -o ${METALLIB_OUTPUT} | ||
| DEPENDS ${IR_OUTPUT} | ||
| COMMENT "Linking ${SHADER_NAME} to metallib" | ||
| VERBATIM | ||
| ) | ||
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| # Generate C header with embedded data | ||
| add_custom_command( | ||
| OUTPUT ${C_OUTPUT} ${H_OUTPUT} | ||
| COMMAND plume_file_to_c ${METALLIB_OUTPUT} "${SHADER_NAME}_metallib" ${C_OUTPUT} ${H_OUTPUT} | ||
| DEPENDS ${METALLIB_OUTPUT} plume_file_to_c | ||
| COMMENT "Generating embedded header for ${SHADER_NAME}" | ||
| VERBATIM | ||
| ) | ||
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| list(APPEND GENERATED_SOURCES ${C_OUTPUT}) | ||
| list(APPEND GENERATED_HEADERS ${H_OUTPUT}) | ||
| endforeach() | ||
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| # Add generated sources to the target | ||
| target_sources(${TARGET_NAME} PRIVATE ${GENERATED_SOURCES}) | ||
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| # Add include directory for generated headers | ||
| target_include_directories(${TARGET_NAME} PRIVATE "${OUTPUT_DIR}") | ||
| endfunction() |
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realized we'd never set one, best to set one