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# Copyright (C) 2020-2023 The Khronos Group Inc.
#
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
#
# Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
#
# Redistributions in binary form must reproduce the above
# copyright notice, this list of conditions and the following
# disclaimer in the documentation and/or other materials provided
# with the distribution.
#
# Neither the name of The Khronos Group Inc. nor the names of its
# contributors may be used to endorse or promote products derived
# from this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
# COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
# LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
# CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.
find_package(Python3 REQUIRED)
set(GLSLANG_INTRINSIC_H "${GLSLANG_GENERATED_INCLUDEDIR}/glslang/glsl_intrinsic_header.h")
set(GLSLANG_INTRINSIC_PY "${CMAKE_CURRENT_SOURCE_DIR}/../gen_extension_headers.py")
set(GLSLANG_INTRINSIC_HEADER_DIR "${CMAKE_CURRENT_SOURCE_DIR}/../glslang/ExtensionHeaders")
add_custom_command(
OUTPUT ${GLSLANG_INTRINSIC_H}
COMMAND Python3::Interpreter "${GLSLANG_INTRINSIC_PY}"
"-i" ${GLSLANG_INTRINSIC_HEADER_DIR}
"-o" ${GLSLANG_INTRINSIC_H}
DEPENDS ${GLSLANG_INTRINSIC_PY}
COMMENT "Generating ${GLSLANG_INTRINSIC_H}")
set(SOURCES StandAlone.cpp DirStackFileIncluder.h ${GLSLANG_INTRINSIC_H})
add_executable(glslang-standalone ${SOURCES})
if(${CMAKE_CXX_COMPILER_ID} MATCHES "GNU")
target_compile_options(glslang-standalone PRIVATE -Wconversion)
elseif(${CMAKE_CXX_COMPILER_ID} MATCHES "Clang" AND NOT MSVC)
target_compile_options(glslang-standalone PRIVATE -Wshorten-64-to-32)
endif()
set_property(TARGET glslang-standalone PROPERTY FOLDER tools)
set_property(TARGET glslang-standalone PROPERTY OUTPUT_NAME glslang)
glslang_set_link_args(glslang-standalone)
set(LIBRARIES
glslang
OSDependent
SPIRV
glslang-default-resource-limits)
if(WIN32)
set(LIBRARIES ${LIBRARIES} psapi)
elseif(UNIX)
if(NOT ANDROID AND NOT QNX)
set(LIBRARIES ${LIBRARIES} pthread)
endif()
endif()
target_link_libraries(glslang-standalone ${LIBRARIES})
target_include_directories(glslang-standalone PUBLIC
$<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/../External>)
if(ENABLE_SPVREMAPPER)
set(REMAPPER_SOURCES spirv-remap.cpp)
add_executable(spirv-remap ${REMAPPER_SOURCES})
set_property(TARGET spirv-remap PROPERTY FOLDER tools)
glslang_set_link_args(spirv-remap)
target_link_libraries(spirv-remap SPVRemapper ${LIBRARIES})
endif()
if(WIN32)
source_group("Source" FILES ${SOURCES})
endif()
if(PROJECT_IS_TOP_LEVEL)
install(TARGETS glslang-standalone EXPORT glslang-targets)
# Backward compatibility
file(WRITE "${CMAKE_CURRENT_BINARY_DIR}/glslang-standaloneTargets.cmake" "
message(WARNING \"Using `glslang-standaloneTargets.cmake` is deprecated: use `find_package(glslang)` to find glslang CMake targets.\")
if (NOT TARGET glslang::glslang-standalone)
include(\"${CMAKE_INSTALL_FULL_LIBDIR}/cmake/${PROJECT_NAME}/glslang-targets.cmake\")
endif()
add_library(glslang-standalone ALIAS glslang::glslang-standalone)
")
install(FILES "${CMAKE_CURRENT_BINARY_DIR}/glslang-standaloneTargets.cmake" DESTINATION ${CMAKE_INSTALL_LIBDIR}/cmake)
# Create a symbolic link to glslang named glslangValidator for backwards compatibility
set(legacy_glslang_name "glslangValidator${CMAKE_EXECUTABLE_SUFFIX}")
set(link_method create_symlink)
if (WIN32 OR MINGW)
set(link_method copy_if_different)
endif()
add_custom_command(TARGET glslang-standalone
POST_BUILD
COMMAND ${CMAKE_COMMAND} -E ${link_method} $<TARGET_FILE_NAME:glslang-standalone> ${legacy_glslang_name}
WORKING_DIRECTORY $<TARGET_FILE_DIR:glslang-standalone>)
# Create the same symlink at install time
install(CODE "execute_process( \
COMMAND ${CMAKE_COMMAND} -E ${link_method} $<TARGET_FILE_NAME:glslang-standalone> ${legacy_glslang_name} \
WORKING_DIRECTORY \$ENV{DESTDIR}${CMAKE_INSTALL_PREFIX}/${CMAKE_INSTALL_BINDIR})")
if(ENABLE_SPVREMAPPER)
install(TARGETS spirv-remap EXPORT glslang-targets)
# Backward compatibility
file(WRITE "${CMAKE_CURRENT_BINARY_DIR}/spirv-remapTargets.cmake" "
message(WARNING \"Using `spirv-remapTargets.cmake` is deprecated: use `find_package(glslang)` to find glslang CMake targets.\")
if (NOT TARGET glslang::spirv-remap)
include(\"${CMAKE_INSTALL_FULL_LIBDIR}/cmake/${PROJECT_NAME}/glslang-targets.cmake\")
endif()
add_library(spirv-remap ALIAS glslang::spirv-remap)
")
install(FILES "${CMAKE_CURRENT_BINARY_DIR}/spirv-remapTargets.cmake" DESTINATION ${CMAKE_INSTALL_LIBDIR}/cmake)
endif()
endif()
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