assimp/contrib/draco/cmake/draco_dependencies.cmake

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CMake
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# Copyright 2022 The Draco Authors
#
# 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.
if(DRACO_CMAKE_DRACO_DEPENDENCIES_CMAKE)
return()
endif()
set(DRACO_CMAKE_DRACO_DEPENDENCIES_CMAKE 1)
include("${draco_root}/cmake/draco_variables.cmake")
# Each variable holds a user specified custom path to a local copy of the
# sources that belong to each project that Draco depends on. When paths are
# empty the build will be generated pointing to the Draco git submodules.
# Otherwise the paths specified by the user will be used in the build
# configuration.
# Path to the Eigen. The path must contain the Eigen directory.
set(DRACO_EIGEN_PATH)
draco_track_configuration_variable(DRACO_EIGEN_PATH)
# Path to the gulrak/filesystem installation. The path specified must contain
# the ghc subdirectory that houses the filesystem includes.
set(DRACO_FILESYSTEM_PATH)
draco_track_configuration_variable(DRACO_FILESYSTEM_PATH)
# Path to the googletest installation. The path must be to the root of the
# Googletest project directory.
set(DRACO_GOOGLETEST_PATH)
draco_track_configuration_variable(DRACO_GOOGLETEST_PATH)
# Path to the syoyo/tinygltf installation. The path must be to the root of the
# project directory.
set(DRACO_TINYGLTF_PATH)
draco_track_configuration_variable(DRACO_TINYGLTF_PATH)
# Utility macro for killing the build due to a missing submodule directory.
macro(draco_die_missing_submodule dir)
message(FATAL_ERROR "${dir} missing, run git submodule update --init")
endmacro()
# Determines the Eigen location and updates the build configuration accordingly.
macro(draco_setup_eigen)
if(DRACO_EIGEN_PATH)
set(eigen_path "${DRACO_EIGEN_PATH}")
if(NOT IS_DIRECTORY "${eigen_path}")
message(FATAL_ERROR "DRACO_EIGEN_PATH does not exist.")
endif()
else()
set(eigen_path "${draco_root}/third_party/eigen")
if(NOT IS_DIRECTORY "${eigen_path}")
draco_die_missing_submodule("${eigen_path}")
endif()
endif()
set(eigen_include_path "${eigen_path}/Eigen")
if(NOT EXISTS "${eigen_path}/Eigen")
message(FATAL_ERROR "The eigen path does not contain an Eigen directory.")
endif()
list(APPEND draco_include_paths "${eigen_path}")
endmacro()
# Determines the gulrak/filesystem location and updates the build configuration
# accordingly.
macro(draco_setup_filesystem)
if(DRACO_FILESYSTEM_PATH)
set(fs_path "${DRACO_FILESYSTEM_PATH}")
if(NOT IS_DIRECTORY "${fs_path}")
message(FATAL_ERROR "DRACO_FILESYSTEM_PATH does not exist.")
endif()
else()
set(fs_path "${draco_root}/third_party/filesystem/include")
if(NOT IS_DIRECTORY "${fs_path}")
draco_die_missing_submodule("${fs_path}")
endif()
endif()
list(APPEND draco_include_paths "${fs_path}")
endmacro()
# Determines the Googletest location and sets up include and source list vars
# for the draco_tests build.
macro(draco_setup_googletest)
if(DRACO_GOOGLETEST_PATH)
set(gtest_path "${DRACO_GOOGLETEST_PATH}")
if(NOT IS_DIRECTORY "${gtest_path}")
message(FATAL_ERROR "DRACO_GOOGLETEST_PATH does not exist.")
endif()
else()
set(gtest_path "${draco_root}/third_party/googletest")
endif()
list(APPEND draco_test_include_paths ${draco_include_paths}
"${gtest_path}/include" "${gtest_path}/googlemock"
"${gtest_path}/googletest/include" "${gtest_path}/googletest")
list(APPEND draco_gtest_all "${gtest_path}/googletest/src/gtest-all.cc")
list(APPEND draco_gtest_main "${gtest_path}/googletest/src/gtest_main.cc")
endmacro()
# Determines the location of TinyGLTF and updates the build configuration
# accordingly.
macro(draco_setup_tinygltf)
if(DRACO_TINYGLTF_PATH)
set(tinygltf_path "${DRACO_TINYGLTF_PATH}")
if(NOT IS_DIRECTORY "${tinygltf_path}")
message(FATAL_ERROR "DRACO_TINYGLTF_PATH does not exist.")
endif()
else()
set(tinygltf_path "${draco_root}/third_party/tinygltf")
if(NOT IS_DIRECTORY "${tinygltf_path}")
draco_die_missing_submodule("${tinygltf_path}")
endif()
endif()
list(APPEND draco_include_paths "${tinygltf_path}")
endmacro()