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39 lines
1 KiB
CMake
39 lines
1 KiB
CMake
# Copyright 2019, Collabora, Ltd.
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# SPDX-License-Identifier: BSL-1.0
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find_program(GLSLANGVALIDATOR_COMMAND
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glslangValidator)
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if(NOT GLSLANGVALIDATOR_COMMAND)
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message(FATAL_ERROR "glslangValidator required - source maintained at https://github.com/KhronosGroup/glslang")
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endif()
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#
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# Generate a SPIR-V header file, with the given var name. Returns the header.
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#
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function(spirv_shader ret GLSL VAR)
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set(HEADER "${CMAKE_CURRENT_BINARY_DIR}/${GLSL}.h")
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set(GLSL "${CMAKE_CURRENT_SOURCE_DIR}/${GLSL}")
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add_custom_command(
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OUTPUT ${HEADER}
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COMMAND ${GLSLANGVALIDATOR_COMMAND} -V ${GLSL} --vn ${VAR} -o ${HEADER}
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DEPENDS ${GLSL})
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set(${ret} "${HEADER}" PARENT_SCOPE)
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endfunction(spirv_shader)
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#
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# Generate SPIR-V header files from the arguments. Returns a list of headers.
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#
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function(spirv_shaders ret)
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foreach(GLSL ${ARGN})
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string(MAKE_C_IDENTIFIER ${GLSL} IDENTIFIER)
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spirv_shader(HEADER ${GLSL} ${IDENTIFIER})
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list(APPEND HEADERS ${HEADER})
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endforeach()
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set(${ret} "${HEADERS}" PARENT_SCOPE)
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endfunction(spirv_shaders)
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