# ***** 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 *****

if(BUILD_MODE STREQUAL Release)
	set(OIIO_TOOLS ON)
else()
	set(OIIO_TOOLS OFF)
endif()

if(UNIX AND NOT APPLE)
	# This causes linking to static pthread libraries which gives link errors.
	# Since we manually specify library paths it should static link other libs.
	set(OPENIMAGEIO_LINKSTATIC -DLINKSTATIC=OFF)
else()
	set(OPENIMAGEIO_LINKSTATIC -DLINKSTATIC=ON)
endif()

if(WIN32)
	set(PNG_LIBNAME libpng16_static${LIBEXT})
	set(OIIO_SIMD_FLAGS -DUSE_SIMD=sse2)
else()
	set(PNG_LIBNAME libpng${LIBEXT})
	set(OIIO_SIMD_FLAGS)
endif()

set(OPENIMAGEIO_EXTRA_ARGS
	-DBUILDSTATIC=ON
	${OPENIMAGEIO_LINKSTATIC}
	-DOPENEXR_INCLUDE_DIR=${LIBDIR}/openexr/include/openexr/
	-DOPENEXR_ILMIMF_LIBRARIES=${LIBDIR}/openexr/lib/IlmImf-2_2${LIBEXT}
	-DBoost_COMPILER:STRING=${BOOST_COMPILER_STRING}
	-DBoost_USE_MULTITHREADED=ON
	-DBoost_USE_STATIC_LIBS=ON
	-DBoost_USE_STATIC_RUNTIME=ON
	-DBOOST_ROOT=${LIBDIR}/boost
	-DBOOST_LIBRARYDIR=${LIBDIR}/boost/lib/
	-DBoost_NO_SYSTEM_PATHS=ON
	-OIIO_BUILD_CPP11=ON
	-DUSE_OPENGL=OFF
	-DUSE_TBB=OFF
	-DUSE_FIELD3D=OFF
	-DUSE_QT=OFF
	-DUSE_PYTHON=OFF
	-DUSE_GIF=OFF
	-DUSE_OPENCV=OFF
	-DUSE_OPENSSL=OFF
	-DUSE_OPENJPEG=OFF
	-DUSE_FFMPEG=OFF
	-DUSE_PTEX=OFF
	-DUSE_FREETYPE=OFF
	-DUSE_LIBRAW=OFF
	-DUSE_PYTHON=OFF
	-DUSE_PYTHON3=OFF
	-DUSE_OCIO=OFF
	-DOIIO_BUILD_TOOLS=${OIIO_TOOLS}
	-DOIIO_BUILD_TESTS=OFF
	-DBUILD_TESTING=OFF
	-DZLIB_LIBRARY=${LIBDIR}/zlib/lib/${ZLIB_LIBRARY}
	-DZLIB_INCLUDE_DIR=${LIBDIR}/zlib/include
	-DPNG_LIBRARY=${LIBDIR}/png/lib/${PNG_LIBNAME}
	-DPNG_PNG_INCLUDE_DIR=${LIBDIR}/png/include
	-DTIFF_LIBRARY=${LIBDIR}/tiff/lib/${LIBPREFIX}tiff${LIBEXT}
	-DTIFF_INCLUDE_DIR=${LIBDIR}/tiff/include
	-DJPEG_LIBRARY=${LIBDIR}/jpg/lib/${JPEG_LIBRARY}
	-DJPEG_INCLUDE_DIR=${LIBDIR}/jpg/include
	-DOCIO_PATH=${LIBDIR}/opencolorio/
	-DOpenEXR_USE_STATIC_LIBS=On
	-DOPENEXR_HOME=${LIBDIR}/openexr/
	-DILMBASE_INCLUDE_PATH=${LIBDIR}/ilmbase/
	-DILMBASE_PACKAGE_PREFIX=${LIBDIR}/ilmbase/
	-DILMBASE_INCLUDE_DIR=${LIBDIR}/ilmbase/include/
	-DOPENEXR_HALF_LIBRARY=${LIBDIR}/ilmbase/lib/${LIBPREFIX}Half${LIBEXT}
	-DOPENEXR_IMATH_LIBRARY=${LIBDIR}/ilmbase/lib/${LIBPREFIX}Imath-2_2${LIBEXT}
	-DOPENEXR_ILMTHREAD_LIBRARY=${LIBDIR}/ilmbase/lib/${LIBPREFIX}IlmThread-2_2${LIBEXT}
	-DOPENEXR_IEX_LIBRARY=${LIBDIR}/ilmbase/lib/${LIBPREFIX}Iex-2_2${LIBEXT}
	-DOPENEXR_INCLUDE_DIR=${LIBDIR}/openexr/include/
	-DOPENEXR_ILMIMF_LIBRARY=${LIBDIR}/openexr/lib/${LIBPREFIX}IlmImf-2_2${LIBEXT}
	-DSTOP_ON_WARNING=OFF
	-DWEBP_INCLUDE_DIR=${LIBDIR}/webp/include
	-DWEBP_LIBRARY=${LIBDIR}/webp/lib/${LIBPREFIX}webp${LIBEXT}
	${OIIO_SIMD_FLAGS}
)

ExternalProject_Add(external_openimageio
	URL ${OPENIMAGEIO_URI}
	DOWNLOAD_DIR ${DOWNLOAD_DIR}
	URL_HASH MD5=${OPENIMAGEIO_HASH}
	PREFIX ${BUILD_DIR}/openimageio
	PATCH_COMMAND ${PATCH_CMD} -p 0 -N -d ${BUILD_DIR}/openimageio/src/external_openimageio/src/include < ${PATCH_DIR}/openimageio_gdi.diff &&
				${PATCH_CMD} -p 0 -N -d ${BUILD_DIR}/openimageio/src/external_openimageio/ < ${PATCH_DIR}/openimageio_staticexr.diff
	CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=${LIBDIR}/openimageio ${DEFAULT_CMAKE_FLAGS} ${OPENIMAGEIO_EXTRA_ARGS}
	INSTALL_DIR ${LIBDIR}/openimageio
)

add_dependencies(external_openimageio external_png external_zlib external_ilmbase external_openexr external_jpeg external_boost external_tiff external_webp external_opencolorio)
if(NOT WIN32)
	add_dependencies(external_openimageio external_opencolorio_extra)
endif()