Gentoo Packages

# Copyright 1999-2024 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2

EAPI=8

inherit cuda meson-multilib flag-o-matic toolchain-funcs

DESCRIPTION="C libary for Netflix's Perceptual video quality assessment"
HOMEPAGE="https://github.com/Netflix/vmaf"

if [[ ${PV} == "9999" ]]; then
	inherit git-r3
	EGIT_REPO_URI="https://github.com/Netflix/vmaf.git"
else
	SRC_URI="
		https://github.com/Netflix/vmaf/archive/v${PV}.tar.gz -> ${P}.tar.gz
	"
	KEYWORDS="~amd64 ~loong ~riscv ~x86"
fi

LICENSE="BSD-2-with-patent"
SLOT="0/3"
IUSE="cuda +embed-models test"

RESTRICT="!test? ( test )"

BDEPEND="
	dev-lang/nasm
	cuda? ( dev-util/nvidia-cuda-toolkit:= )
	embed-models? ( app-editors/vim-core )
"

RDEPEND="${BDEPEND}"

# Fix the silly way they implement 'cuda' in the buildsystem.
# (perhaps it is outdated?)
PATCHES=(
	"${FILESDIR}/cuda-segfault-fix.patch"
	"${FILESDIR}/0001-meson-Simplify-cuda-dependency-and-remove-hard-coded.patch"
	"${FILESDIR}/0002-meson-Fix-include-paths-in-nvcc-custom-targets.patch"
)

MULTILIB_WRAPPED_HEADERS=(
       /usr/include/libvmaf/libvmaf_cuda.h
)

if [[ ${PV} == "9999" ]]; then
	S="${WORKDIR}/libvmaf-${PV}"
else
	S="${WORKDIR}/vmaf-${PV}"
fi

src_prepare() {
	default

	# Workaround for https://bugs.gentoo.org/837221
	# The paths in the tests are hard coded to look for the model folder as "../../model"
	sed -i "s|\"../../model|\"../vmaf-${PV}/model|g" "${S}"/libvmaf/test/* || die

	# Remove all 'cuda_inc' instances. (not sure why my patch wasn't working)
	sed -i "s|cuda_inc += include_directories('/usr/local/cuda/include')||g" \
		"${S}"/libvmaf/src/meson.build \
		|| die

	cuda_src_prepare
}

multilib_src_configure() {
	if use cuda; then
		export CUDA_PATH="/opt/cuda"
		export NVCC_PREPEND_FLAGS="--compiler-bindir=$(cuda_gccdir)"
	fi

	local emesonargs=(
		-Dc_args="-Wno-incompatible-pointer-types -Wno-int-conversion -Wno-implicit-function-declaration"
		$(meson_use embed-models built_in_models)
		$(meson_use test enable_tests)
		$(meson_native_use_bool cuda enable_cuda)
	)

	if use cuda; then
	        emesonargs+=(
	                -Dcuda_ccbindir=$(cuda_gccdir)
	        )
	fi

	EMESON_SOURCE="${S}/libvmaf"
	filter-lto
	meson_src_configure
}

multilib_src_compile() {
	meson_src_compile
}

multilib_src_install() {
	meson_src_install
	find "${D}" -name '*.la' -delete -o -name '*.a' -delete || die
}

multilib_src_install_all() {
	einstalldocs

	insinto "/usr/share/vmaf"
	doins -r "${S}/model"
}