89 lines
3.7 KiB
CMake
89 lines
3.7 KiB
CMake
function(compile_slang_shaders input_file stage entry_point)
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# 保证输出目录存在
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if (NOT DEFINED SHADER_OUTPUT_DIR)
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message(FATAL_ERROR "SHADER_OUTPUT_DIR not defined")
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endif ()
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set(output_dir ${SHADER_OUTPUT_DIR})
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# 获取输出文件的基本名称
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get_filename_component(filename ${input_file} NAME_WE)
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# 定义根据阶段确定的配置
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if(stage STREQUAL "vertex")
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set(profile "vs_5_0")
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elseif(stage STREQUAL "pixel")
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set(profile "ps_5_0")
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elseif (stage STREQUAL "comp")
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set(profile "cs_5_0")
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else()
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message(FATAL_ERROR "Unsupported shader stage: ${stage}")
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endif()
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# 初始化一个列表来存储输出文件
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set(output_files)
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set(extra_args ${ARGN})
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# 如果是debug模式，添加调试标志
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if(CMAKE_BUILD_TYPE STREQUAL "Debug")
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list(APPEND extra_args "-g")
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endif()
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# 为每个后台创建自定义命令
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if(LLGL_BUILD_RENDERER_OPENGL OR LLGL_BUILD_RENDERER_OPENGL_ES3 OR LLGL_BUILD_RENDERER_WEBGL)
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set(output_file ${output_dir}/${filename}_${entry_point}.glsl)
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add_custom_command(
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OUTPUT ${output_file}
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COMMAND slangc -target glsl -entry ${entry_point} -stage ${stage} ${extra_args} -o ${output_file} ${input_file} -DUSE_OPENGL=1 -DUV_FLIP=1
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DEPENDS ${input_file}
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COMMENT "Compiling ${input_file} to GLSL (${stage}, ${entry_point})"
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)
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list(APPEND output_files ${output_file})
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endif()
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if(LLGL_BUILD_RENDERER_DIRECT3D11 OR LLGL_BUILD_RENDERER_DIRECT3D12)
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set(output_file ${output_dir}/${filename}_${entry_point}.dxbc)
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add_custom_command(
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OUTPUT ${output_file}
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COMMAND slangc -target dxbc -profile ${profile} -entry ${entry_point} -stage ${stage} ${extra_args} -o ${output_file} ${input_file} -DUSE_DX=1
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DEPENDS ${input_file}
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COMMENT "Compiling ${input_file} to DXBC (${stage}, ${entry_point}) with profile ${profile}"
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)
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list(APPEND output_files ${output_file})
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endif()
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if(LLGL_BUILD_RENDERER_VULKAN)
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set(output_file ${output_dir}/${filename}_${entry_point}.spirv)
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add_custom_command(
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OUTPUT ${output_file}
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COMMAND slangc -target spirv -entry ${entry_point} -stage ${stage} ${extra_args} -o ${output_file} ${input_file} -DUSE_VULKAN=1 -DUV_FLIP=1
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DEPENDS ${input_file}
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COMMENT "Compiling ${input_file} to SPIR-V (${stage}, ${entry_point})"
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)
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list(APPEND output_files ${output_file})
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endif()
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if(LLGL_BUILD_RENDERER_METAL)
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set(output_file ${output_dir}/${filename}_${entry_point}.metal)
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add_custom_command(
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OUTPUT ${output_file}
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COMMAND slangc -target metal -entry ${entry_point} -stage ${stage} ${extra_args} -o ${output_file} ${input_file} -DUSE_METAL=1
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DEPENDS ${input_file}
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COMMENT "Compiling ${input_file} to Metal Shading Language (${stage}, ${entry_point})"
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)
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list(APPEND output_files ${output_file})
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endif()
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# 将输出文件添加到全局列表中
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set_property(GLOBAL APPEND PROPERTY ALL_SHADER_OUTPUTS ${output_files})
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endfunction()
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function(add_compile_shaders_target target_name before_target)
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file(MAKE_DIRECTORY ${SHADER_OUTPUT_DIR})
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get_property(ALL_SHADER_OUTPUTS GLOBAL PROPERTY ALL_SHADER_OUTPUTS)
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add_custom_target(${target_name} ALL DEPENDS ${ALL_SHADER_OUTPUTS})
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# 将编译着色器的目标添加到指定目标之前
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add_dependencies(${before_target} ${target_name})
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# 将ALL_SHADER_OUTPUTS清空
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set_property(GLOBAL PROPERTY ALL_SHADER_OUTPUTS "")
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endfunction()
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