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135 lines
3.7 KiB
135 lines
3.7 KiB
# Copyright 1999-2022 Gentoo Authors
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# Distributed under the terms of the GNU General Public License v2
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EAPI=8
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inherit cmake flag-o-matic linux-info
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DESCRIPTION="Collection of high-performance ray tracing kernels"
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HOMEPAGE="https://github.com/embree/embree"
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SRC_URI="https://github.com/embree/embree/archive/v${PV}.tar.gz -> ${P}.tar.gz"
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LICENSE="Apache-2.0"
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SLOT="3"
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KEYWORDS="amd64 ~arm ~arm64 ~ppc64 ~x86"
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X86_CPU_FLAGS=( sse2:sse2 sse4_2:sse4_2 avx:avx avx2:avx2 avx512dq:avx512dq )
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CPU_FLAGS=( cpu_flags_arm_neon ${X86_CPU_FLAGS[@]/#/cpu_flags_x86_} )
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IUSE="+compact-polys ispc +raymask ssp +tbb tutorial ${CPU_FLAGS[@]%:*}"
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# Let's be explicit here even though we could simplify it.
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REQUIRED_USE="amd64? ( cpu_flags_x86_sse2 )
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x86? ( cpu_flags_x86_sse2 )"
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BDEPEND="
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virtual/pkgconfig
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"
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RDEPEND="
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>=media-libs/glfw-3.2.1
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virtual/opengl
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ispc? ( dev-lang/ispc )
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tbb? ( dev-cpp/tbb:= )
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tutorial? (
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media-libs/libjpeg-turbo
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>=media-libs/libpng-1.6.34:0=
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>=media-libs/openimageio-1.8.7:0=
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)
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"
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DEPEND="${RDEPEND}"
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DOCS=( CHANGELOG.md README.md readme.pdf )
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PATCHES=(
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"${FILESDIR}"/${PN}-3.13.4-fix-openimageio-test.patch
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)
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pkg_setup() {
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CONFIG_CHECK="~TRANSPARENT_HUGEPAGE"
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WARNING_TRANSPARENT_HUGEPAGE="Not enabling Transparent Hugepages (CONFIG_TRANSPARENT_HUGEPAGE) will impact rendering performance."
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linux-info_pkg_setup
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}
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src_prepare() {
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cmake_src_prepare
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# disable RPM package building
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sed -e 's|CPACK_RPM_PACKAGE_RELEASE 1|CPACK_RPM_PACKAGE_RELEASE 0|' \
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-i CMakeLists.txt || die
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}
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src_configure() {
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# NOTE: You can make embree accept custom CXXFLAGS by turning off
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# EMBREE_IGNORE_CMAKE_CXX_FLAGS. However, the linking will fail if you use
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# any "m*" compile flags. This is because embree builds modules for the
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# different supported ISAs and picks the correct one at runtime.
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# "m*" will pull in cpu instructions that shouldn't be in specific modules
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# and it fails to link properly.
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# https://github.com/embree/embree/issues/115
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filter-flags -m*
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local mycmakeargs=(
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# Currently Intel only host their test files on their internal network.
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# So it seems like users can't easily get a hold of these and do
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# regression testing on their own.
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-DBUILD_TESTING:BOOL=OFF
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-DCMAKE_SKIP_INSTALL_RPATH:BOOL=ON
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# default
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-DEMBREE_BACKFACE_CULLING=OFF
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-DEMBREE_COMPACT_POLYS=$(usex compact-polys)
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# default
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-DEMBREE_FILTER_FUNCTION=ON
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# default
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-DEMBREE_GEOMETRY_CURVE=ON
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# default
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-DEMBREE_GEOMETRY_GRID=ON
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# default
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-DEMBREE_GEOMETRY_INSTANCE=ON
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# default
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-DEMBREE_GEOMETRY_POINT=ON
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# default
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-DEMBREE_GEOMETRY_QUAD=ON
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# default
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-DEMBREE_GEOMETRY_SUBDIVISION=ON
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# default
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-DEMBREE_GEOMETRY_TRIANGLE=ON
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# default
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-DEMBREE_GEOMETRY_USER=ON
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# default
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-DEMBREE_IGNORE_CMAKE_CXX_FLAGS=OFF
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# default
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-DEMBREE_IGNORE_INVALID_RAYS=OFF
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# Set to NONE so we can manually switch on ISAs below
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-DEMBREE_MAX_ISA:STRING="NONE"
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-DEMBREE_ISA_AVX=$(usex cpu_flags_x86_avx)
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-DEMBREE_ISA_AVX2=$(usex cpu_flags_x86_avx2)
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-DEMBREE_ISA_AVX512=$(usex cpu_flags_x86_avx512dq)
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-DEMBREE_ISA_NEON=$(usex cpu_flags_arm_neon)
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-DEMBREE_ISA_SSE2=$(usex cpu_flags_x86_sse2)
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-DEMBREE_ISA_SSE42=$(usex cpu_flags_x86_sse4_2)
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-DEMBREE_ISPC_SUPPORT=$(usex ispc)
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-DEMBREE_RAY_MASK=$(usex raymask)
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# default
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-DEMBREE_RAY_PACKETS=ON
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-DEMBREE_STACK_PROTECTOR=$(usex ssp)
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-DEMBREE_STATIC_LIB=OFF
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-DEMBREE_STAT_COUNTERS=OFF
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-DEMBREE_TASKING_SYSTEM:STRING=$(usex tbb "TBB" "INTERNAL")
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-DEMBREE_TUTORIALS=$(usex tutorial))
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# Disable asserts
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append-cppflags -DNDEBUG
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if use tutorial; then
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mycmakeargs+=(
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-DEMBREE_TUTORIALS_LIBJPEG=ON
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-DEMBREE_TUTORIALS_LIBPNG=ON
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-DEMBREE_TUTORIALS_OPENIMAGEIO=ON
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)
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fi
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cmake_src_configure
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}
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