monado/cmake/SPIR-V.cmake

38 lines
1.1 KiB
CMake

# Copyright 2019, Collabora, Ltd.
# SPDX-License-Identifier: BSL-1.0
find_program(GLSLANGVALIDATOR_COMMAND
glslangValidator)
if(NOT GLSLANGVALIDATOR_COMMAND)
message(FATAL_ERROR "glslangValidator required - source maintained at https://github.com/KhronosGroup/glslang")
endif()
#
# Generate SPIR-V header files from the arguments. Returns a list of headers.
#
function(spirv_shaders ret)
set(options)
set(oneValueArgs SPIRV_VERSION)
set(multiValueArgs SOURCES)
cmake_parse_arguments(_spirvshaders "${options}" "${oneValueArgs}"
"${multiValueArgs}" ${ARGN})
if(NOT _spirvshaders_SPIRV_VERSION)
set(_spirvshaders_SPIRV_VERSION 1.0)
endif()
foreach(GLSL ${_spirvshaders_SOURCES})
string(MAKE_C_IDENTIFIER ${GLSL} IDENTIFIER)
set(HEADER "${CMAKE_CURRENT_BINARY_DIR}/${GLSL}.h")
set(GLSL "${CMAKE_CURRENT_SOURCE_DIR}/${GLSL}")
add_custom_command(
OUTPUT ${HEADER}
COMMAND ${GLSLANGVALIDATOR_COMMAND} -V --target-env spirv${_spirvshaders_SPIRV_VERSION} ${GLSL} --vn ${IDENTIFIER} -o ${HEADER}
DEPENDS ${GLSL})
list(APPEND HEADERS ${HEADER})
endforeach()
set(${ret} "${HEADERS}" PARENT_SCOPE)
endfunction(spirv_shaders)