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# Copyright (c) 2017-2021, The Khronos Group Inc.
#
# SPDX-License-Identifier: Apache-2.0
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
# Author:
#
# Copy the openxr_platform_defines.h file and place it in the binary (build) directory.
configure_file(openxr_platform_defines.h ${CMAKE_CURRENT_BINARY_DIR}/openxr_platform_defines.h COPYONLY)
# Generate OpenXR header files.
set(HEADERS
openxr.h
openxr_platform.h
openxr_reflection.h)
set(HAVE_PREGENERATED TRUE)
set(SOURCE_HEADERS)
foreach(output ${HEADERS})
list(APPEND SOURCE_HEADERS ${CMAKE_CURRENT_SOURCE_DIR}/${output})
if(NOT EXISTS ${CMAKE_CURRENT_SOURCE_DIR}/${output})
set(HAVE_PREGENERATED FALSE)
endif()
endforeach()
set(XR_ROOT ${CMAKE_CURRENT_SOURCE_DIR}/../..)
if(HAVE_PREGENERATED AND NOT BUILD_FORCE_GENERATION)
add_custom_target(generate_openxr_header
COMMENT "Using found pre-generated OpenXR headers.")
set(INSTALL_HEADERS
${CMAKE_CURRENT_SOURCE_DIR}/openxr_platform_defines.h
${SOURCE_HEADERS})
else()
set(GENERATED_HEADERS)
set(OUTPUT_STAMPS)
# Copy the openxr_platform_defines.h file and place it in the binary (build) directory.
configure_file(${CMAKE_CURRENT_SOURCE_DIR}/openxr_platform_defines.h
${CMAKE_CURRENT_BINARY_DIR}/openxr_platform_defines.h
COPYONLY)
# Generate the header files and place it in the binary (build) directory.
foreach(output ${HEADERS})
add_custom_command(OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/${output}
COMMAND ${PYTHON_EXECUTABLE} ${XR_ROOT}/specification/scripts/genxr.py
-registry ${XR_ROOT}/specification/registry/xr.xml
-o ${CMAKE_CURRENT_BINARY_DIR} ${output}
DEPENDS
${XR_ROOT}/specification/scripts/genxr.py
${XR_ROOT}/specification/scripts/cgenerator.py
${XR_ROOT}/specification/scripts/creflectiongenerator.py
${XR_ROOT}/specification/scripts/generator.py
${XR_ROOT}/specification/scripts/reg.py
${XR_ROOT}/specification/registry/xr.xml
COMMENT "Generating ${CMAKE_CURRENT_BINARY_DIR}/${output}"
)
list(APPEND GENERATED_HEADERS "${CMAKE_CURRENT_BINARY_DIR}/${output}")
endforeach()
set_source_files_properties(
${GENERATED_HEADERS}
PROPERTIES GENERATED TRUE
)
set(INSTALL_HEADERS
${CMAKE_CURRENT_BINARY_DIR}/openxr_platform_defines.h
${GENERATED_HEADERS})
# Define generate_openxr_header target to generate the OpenXR header files.
# Other targets that need the OpenXR headers should use generate_openxr_header as a dependency.
add_custom_target(generate_openxr_header
SOURCES ${XR_ROOT}/specification/registry/xr.xml
DEPENDS
${GENERATED_HEADERS}
${OUTPUT_STAMPS}
)
endif()
set_target_properties(generate_openxr_header PROPERTIES FOLDER ${CODEGEN_FOLDER})
if(NOT CMAKE_INSTALL_INCDIR)
set(CMAKE_INSTALL_INCDIR include)
endif()
INSTALL(FILES ${INSTALL_HEADERS}
DESTINATION ${CMAKE_INSTALL_INCDIR}/openxr
COMPONENT Headers
)
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