Blender build data

blender-build/build_environment/cmake/png.cmake

@@ -0,0 +1,40 @@
+# SPDX-License-Identifier: GPL-2.0-or-later
+
+set(PNG_EXTRA_ARGS
+  -DZLIB_LIBRARY=${LIBDIR}/zlib/lib/${ZLIB_LIBRARY}
+  -DZLIB_INCLUDE_DIR=${LIBDIR}/zlib/include/
+  -DPNG_STATIC=ON
+)
+
+if(BLENDER_PLATFORM_ARM)
+  set(PNG_EXTRA_ARGS ${PNG_EXTRA_ARGS} -DPNG_HARDWARE_OPTIMIZATIONS=ON -DPNG_ARM_NEON=on -DCMAKE_SYSTEM_PROCESSOR="aarch64")
+endif()
+
+ExternalProject_Add(external_png
+  URL file://${PACKAGE_DIR}/${PNG_FILE}
+  DOWNLOAD_DIR ${DOWNLOAD_DIR}
+  URL_HASH ${PNG_HASH_TYPE}=${PNG_HASH}
+  PREFIX ${BUILD_DIR}/png
+  CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/png ${DEFAULT_CMAKE_FLAGS} ${PNG_EXTRA_ARGS}
+  INSTALL_DIR ${LIBDIR}/png
+)
+
+add_dependencies(
+  external_png
+  external_zlib
+)
+
+if(WIN32 AND BUILD_MODE STREQUAL Release)
+  ExternalProject_Add_Step(external_png after_install
+    COMMAND ${CMAKE_COMMAND} -E copy_directory ${LIBDIR}/png/include/ ${HARVEST_TARGET}/png/include/
+    COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/png/lib/libpng16_static${LIBEXT} ${HARVEST_TARGET}/png/lib/libpng${LIBEXT}
+    DEPENDEES install
+  )
+endif()
+
+if(WIN32 AND BUILD_MODE STREQUAL Debug)
+  ExternalProject_Add_Step(external_png after_install
+    COMMAND ${CMAKE_COMMAND} -E copy ${LIBDIR}/png/lib/libpng16_staticd${LIBEXT} ${LIBDIR}/png/lib/libpng16${LIBEXT}
+    DEPENDEES install
+  )
+endif()