1 files changed, 101 insertions, 0 deletions
diff --git a/build_files/build_environment/cmake/usd.cmake b/build_files/build_environment/cmake/usd.cmake
new file mode 100644
index 00000000000..c3594390f80
--- /dev/null
+++ b/build_files/build_environment/cmake/usd.cmake
@@ -0,0 +1,101 @@
+# ***** BEGIN GPL LICENSE BLOCK *****
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#
+# ***** END GPL LICENSE BLOCK *****
+
+set(USD_EXTRA_ARGS
+  -DBoost_COMPILER:STRING=${BOOST_COMPILER_STRING}
+  -DBoost_USE_MULTITHREADED=ON
+  -DBoost_USE_STATIC_LIBS=ON
+  -DBoost_USE_STATIC_RUNTIME=OFF
+  -DBOOST_ROOT=${LIBDIR}/boost
+  -DTBB_INCLUDE_DIRS=${LIBDIR}/tbb/include
+  -DTBB_LIBRARIES=${LIBDIR}/tbb/lib/${LIBPREFIX}tbb_static${LIBEXT}
+  -DTbb_TBB_LIBRARY=${LIBDIR}/tbb/lib/${LIBPREFIX}tbb_static${LIBEXT}
+
+  # This is a preventative measure that avoids possible conflicts when add-ons
+  # try to load another USD library into the same process space.
+  -DPXR_SET_INTERNAL_NAMESPACE=usdBlender
+
+  -DPXR_ENABLE_PYTHON_SUPPORT=OFF
+  -DPXR_BUILD_IMAGING=OFF
+  -DPXR_BUILD_TESTS=OFF
+  -DBUILD_SHARED_LIBS=OFF
+  -DPYTHON_EXECUTABLE=${PYTHON_BINARY}
+  -DPXR_BUILD_MONOLITHIC=ON
+
+  # The PXR_BUILD_USD_TOOLS argument is patched-in by usd.diff. An upstream pull request
+  # can be found at https://github.com/PixarAnimationStudios/USD/pull/1048.
+  -DPXR_BUILD_USD_TOOLS=OFF
+
+  -DCMAKE_DEBUG_POSTFIX=_d
+  # USD is hellbound on making a shared lib, unless you point this variable to a valid cmake file
+  # doesn't have to make sense, but as long as it points somewhere valid it will skip the shared lib.
+  -DPXR_MONOLITHIC_IMPORT=${BUILD_DIR}/usd/src/external_usd/cmake/defaults/Version.cmake
+)
+
+ExternalProject_Add(external_usd
+  URL ${USD_URI}
+  DOWNLOAD_DIR ${DOWNLOAD_DIR}
+  URL_HASH MD5=${USD_HASH}
+  PREFIX ${BUILD_DIR}/usd
+  PATCH_COMMAND ${PATCH_CMD} -p 1 -d ${BUILD_DIR}/usd/src/external_usd < ${PATCH_DIR}/usd.diff
+  CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/usd -Wno-dev ${DEFAULT_CMAKE_FLAGS} ${USD_EXTRA_ARGS}
+  INSTALL_DIR ${LIBDIR}/usd
+)
+
+add_dependencies(
+  external_usd
+  external_tbb
+  external_boost
+)
+
+if(WIN32)
+  # USD currently demands python be available at build time
+  # and then proceeds not to use it, but still checks that the
+  # version of the interpreter it is not going to use is atleast 2.7
+  # so we need this dep currently since there is no system python
+  # on windows.
+  add_dependencies(
+    external_usd
+    external_python
+  )
+  if(BUILD_MODE STREQUAL Release)
+    ExternalProject_Add_Step(external_usd after_install
+      COMMAND ${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/usd/ ${HARVEST_TARGET}/usd
+      COMMAND ${CMAKE_COMMAND} -E copy ${BUILD_DIR}/usd/src/external_usd-build/pxr/Release/libusd_m.lib ${HARVEST_TARGET}/usd/lib/libusd_m.lib
+      DEPENDEES install
+    )
+  endif()
+  if(BUILD_MODE STREQUAL Debug)
+    ExternalProject_Add_Step(external_usd after_install
+      COMMAND ${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/usd/lib ${HARVEST_TARGET}/usd/lib
+      COMMAND ${CMAKE_COMMAND} -E copy ${BUILD_DIR}/usd/src/external_usd-build/pxr/Debug/libusd_m_d.lib ${HARVEST_TARGET}/usd/lib/libusd_m_d.lib
+      DEPENDEES install
+    )
+  endif()
+else()
+  # USD has two build options. The default build creates lots of small libraries,
+  # whereas the 'monolithic' build produces only a single library. The latter
+  # makes linking simpler, so that's what we use in Blender. However, running
+  # 'make install' in the USD sources doesn't install the static library in that
+  # case (only the shared library). As a result, we need to grab the `libusd_m.a`
+  # file from the build directory instead of from the install directory.
+  ExternalProject_Add_Step(external_usd after_install
+    COMMAND ${CMAKE_COMMAND} -E copy ${BUILD_DIR}/usd/src/external_usd-build/pxr/libusd_m.a ${HARVEST_TARGET}/usd/lib/libusd_m.a
+    DEPENDEES install
+  )
+endif()