media-libs/arc-mesa-img/arc-mesa-img-19.0_pre1.ebuild - third_party/overlays/chromiumos-overlay - Git at Google

 # Copyright 1999-2010 Gentoo Foundation
 # Distributed under the terms of the GNU General Public License v2
 # $Header: /var/cvsroot/gentoo-x86/media-libs/mesa/mesa-7.9.ebuild,v 1.3 2010/12/05 17:19:14 arfrever Exp $

 EAPI="5"

 CROS_WORKON_COMMIT="2e7833ad916c493969d00871cdf56db4407b80eb"
 CROS_WORKON_TREE="040a39591a38d3dc778725575c72dcdc1b07e032"
 CROS_WORKON_PROJECT="chromiumos/third_party/mesa-img"
 CROS_WORKON_LOCALNAME="mesa-img"
 CROS_WORKON_EGIT_BRANCH="mesa-img"
 CROS_WORKON_MANUAL_UPREV="1"

 EGIT_REPO_URI="git://anongit.freedesktop.org/mesa/mesa"

 inherit base autotools multilib-minimal flag-o-matic toolchain-funcs cros-workon arc-build

 OPENGL_DIR="xorg-x11"

 DESCRIPTION="OpenGL-like graphic library for Linux"
 HOMEPAGE="http://mesa3d.sourceforge.net/"

 # Most of the code is MIT/X11.
 # ralloc is LGPL-3
 # GLES[2]/gl[2]{,ext,platform}.h are SGI-B-2.0
 LICENSE="MIT LGPL-3 SGI-B-2.0"
 SLOT="0"
 KEYWORDS="*"

 INTEL_CARDS="intel"
 RADEON_CARDS="amdgpu radeon"
 VIDEO_CARDS="${INTEL_CARDS} ${RADEON_CARDS} llvmpipe mach64 mga nouveau powervr r128 savage sis vmware tdfx via freedreno virgl"
 for card in ${VIDEO_CARDS}; do
 	IUSE_VIDEO_CARDS+=" video_cards_${card}"
 done

 IUSE="${IUSE_VIDEO_CARDS}
 	android_aep -android_gles2 -android_gles30
 	+android_gles31 -android_gles32 -android_vulkan_compute_0
 	cheets +classic debug dri egl -gallium
 	-gbm gles1 gles2 -llvm +nptl pic selinux shared-glapi vulkan X xlib-glx
 	cheets_user cheets_user_64"

 # llvmpipe requires ARC++ _userdebug images, ARC++ _user images can't use it
 # (b/33072485, b/28802929).
 # Only allow one vulkan driver as they all write vulkan.cheets.so.
 REQUIRED_USE="
 	^^ ( android_gles2 android_gles30 android_gles31 android_gles32 )
 	android_aep? ( !android_gles2 !android_gles30 )
 	android_vulkan_compute_0? ( vulkan )
 	cheets? (
 		vulkan? ( ^^ ( video_cards_amdgpu video_cards_intel video_cards_powervr ) )
 		video_cards_amdgpu? ( llvm )
 		video_cards_llvmpipe? ( !cheets_user !cheets_user_64 )
 	)"

 DEPEND="video_cards_powervr? (
 		media-libs/arc-img-ddk
 		!<media-libs/arc-img-ddk-1.9
 	)
 	cheets? (
 		>=x11-libs/arc-libdrm-2.4.82[${MULTILIB_USEDEP}]
 		llvm? ( sys-devel/arc-llvm:=[${MULTILIB_USEDEP}] )
 		video_cards_amdgpu? (
 			dev-libs/arc-libelf[${MULTILIB_USEDEP}]
 		)
 	)"

 RDEPEND="${DEPEND}"

 # It is slow without texrels, if someone wants slow
 # mesa without texrels +pic use is worth the shot
 QA_EXECSTACK="usr/lib*/opengl/xorg-x11/lib/libGL.so*"
 QA_WX_LOAD="usr/lib*/opengl/xorg-x11/lib/libGL.so*"

 # Think about: ggi, fbcon, no-X configs

 pkg_setup() {
 	# workaround toc-issue wrt #386545
 	use ppc64 && append-flags -mminimal-toc

 	# Remove symlinks created by an earlier version so we don't have
 	# install conflicts.
 	# TODO: Delete this after June 2019, since everybody should have
 	# upgraded by then.
 	local d
 	for d in EGL GL GLES GLES2 GLES3 KHR; do
 		local replaced_link="${ROOT}${ARC_PREFIX}/vendor/include/${d}"
 		if [[ -L "${replaced_link}" ]]; then
 			rm -f "${replaced_link}"
 		fi
 	done
 }

 src_prepare() {
 	# workaround for cros-workon not preserving git metadata
 	if [[ ${PV} == 9999* && "${CROS_WORKON_INPLACE}" != "1" ]]; then
 		echo "#define MESA_GIT_SHA1 \"git-deadbeef\"" > src/git_sha1.h
 	fi

 	# apply patches
 	if [[ ${PV} != 9999* && -n ${SRC_PATCHES} ]]; then
 		EPATCH_FORCE="yes" \
 		EPATCH_SOURCE="${WORKDIR}/patches" \
 		EPATCH_SUFFIX="patch" \
 		epatch
 	fi
 	# FreeBSD 6.* doesn't have posix_memalign().
 	if [[ ${CHOST} == *-freebsd6.* ]]; then
 		sed -i \
 			-e "s/-DHAVE_POSIX_MEMALIGN//" \
 			configure.ac || die
 	fi

 	# Restrict gles version based on USE flag. (See crbug.com/30202361, b/30202371, b/31041422, b:68023287)
 	if use android_gles32; then
 		einfo "Limiting android to gles32."
 		epatch "${FILESDIR}/gles32/0001-limit-gles-version.patch"
 	elif use android_gles31; then
 		einfo "Limiting android to gles31."
 		epatch "${FILESDIR}/gles31/0001-limit-gles-version.patch"
 	elif use android_gles30; then
 		einfo "Limiting android to gles30."
 		epatch "${FILESDIR}/gles30/0001-limit-gles-version.patch"
 	elif use android_gles2; then
 		einfo "Limiting android to gles2."
 		epatch "${FILESDIR}/gles2/0001-limit-gles-version.patch"
 	fi

 	epatch "${FILESDIR}"/19.0-util-Don-t-block-SIGSYS-for-new-threads.patch
 	epatch "${FILESDIR}"/19.0-radv-Use-given-stride-for-images-imported-from-Andro.patch

 	epatch "${FILESDIR}"/CHROMIUM-intel-limit-urb-size-for-SKL-KBL-CFL-GT1.patch

 	epatch "${FILESDIR}"/FROMLIST-configure.ac-meson.build-Add-optio.patch
 	epatch "${FILESDIR}"/CHROMIUM-configure.ac-depend-on-libnativewindow-when-appropri.patch
 	epatch "${FILESDIR}"/CHROMIUM-egl-android-plumb-swrast-option.patch
 	epatch "${FILESDIR}"/CHROMIUM-egl-android-use-swrast-option-in-droid_load_driver.patch
 	epatch "${FILESDIR}"/CHROMIUM-egl-android-fallback-to-software-rendering.patch

 	epatch "${FILESDIR}"/CHROMIUM-anv-move-anv_GetMemoryAndroidHardwareBufferANDROID-u.patch
 	epatch "${FILESDIR}"/CHROMIUM-remove-unknown-android-extensions.patch
 	epatch "${FILESDIR}"/CHROMIUM-disable-unknown-device-extensions.patch
 	epatch "${FILESDIR}"/CHROMIUM-disable-VK_KHR_draw_indirect_count.patch

 	epatch "${FILESDIR}"/CHROMIUM-HACK-radv-disable-TC-compatible-HTILE-on-Stoney.patch

 	epatch "${FILESDIR}"/FROMLIST-egl-fix-KHR_partial_update-without-EXT_buff.patch
 	epatch "${FILESDIR}"/FROMLIST-egl-android-require-ANDROID_native_fence_sy.patch
 	epatch "${FILESDIR}"/CHROMIUM-Disable-EGL_KHR_partial_update.patch

 	epatch "${FILESDIR}"/FROMLIST-glsl-fix-an-incorrect-max_array_access-afte.patch
 	epatch "${FILESDIR}"/FROMLIST-glsl-fix-a-binding-points-assignment-for-ss.patch

 	epatch "${FILESDIR}"/FROMLIST-glcpp-Hack-to-handle-expressions-in-line-di.patch
 	epatch "${FILESDIR}"/UPSTREAM-intel-Add-support-for-Comet-Lake.patch

 	epatch "${FILESDIR}"/UPSTREAM-st-mesa-fix-2-crashes-in-st_tgsi_lower_yuv.patch

 	epatch "${FILESDIR}"/CHROMIUM-Add-HAL_PIXEL_FORMAT_YCbCr_420_888-in-vk_format.patch
 	epatch "${FILESDIR}"/CHROMIUM-Add-HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED-in-vk_fo.patch

 	epatch "${FILESDIR}"/CHROMIUM-radv-Disable-VK_KHR_create_renderpass2.patch

 	# IMG patches
 	epatch "${FILESDIR}"/0001-dri-pvr-Introduce-PowerVR-DRI-driver.patch
 	epatch "${FILESDIR}"/0003-dri-Add-some-new-DRI-formats-and-fourccs.patch
 	epatch "${FILESDIR}"/0005-GL_EXT_sparse_texture-entry-points.patch
 	epatch "${FILESDIR}"/0006-Add-support-for-various-GLES-extensions.patch
 	epatch "${FILESDIR}"/0011-GL_EXT_shader_pixel_local_storage2-entry-points.patch
 	epatch "${FILESDIR}"/0012-GL_IMG_framebuffer_downsample-entry-points.patch
 	epatch "${FILESDIR}"/0013-GL_OVR_multiview-entry-points.patch
 	epatch "${FILESDIR}"/0014-Add-OVR_multiview_multisampled_render_to_texture.patch
 	epatch "${FILESDIR}"/0019-egl-automatically-call-eglReleaseThread-on-thread-te.patch
 	epatch "${FILESDIR}"/0040-GL_EXT_clip_control-entry-point.patch
 	epatch "${FILESDIR}"/0045-egl-dri2-try-to-bind-old-context-if-bindContext-fail.patch
 	epatch "${FILESDIR}"/0047-mapi-gen-always-use-offsets-from-static-data.patch
 	epatch "${FILESDIR}"/0601-mesa-img-Android-build-fixups.patch

 	base_src_prepare
 	eautoreconf
 }

 src_configure() {
 	cros_optimize_package_for_speed

 	if use cheets; then
 		#
 		# cheets-specific overrides
 		#

 		arc-build-select-clang
 	fi

 	multilib-minimal_src_configure
 }

 multilib_src_configure() {
 	tc-getPROG PKG_CONFIG pkg-config

 	# IMG code
 	driver_enable pvr

 	#
 	# IMG vulkan driver is part of arc-img-ddk
 	# nothing to do here
 	#

 	export LLVM_CONFIG=${SYSROOT}/usr/bin/llvm-config-host
 	EGL_PLATFORM="surfaceless"

 	if use cheets; then
 		#
 		# cheets-specific overrides
 		#

 		MESA_PLATFORM_SDK_VERSION=${ARC_PLATFORM_SDK_VERSION}

 		# Use llvm-config coming from ARC++ build.
 		export LLVM_CONFIG="${ARC_SYSROOT}/build/bin/llvm-config-host"

 		# FIXME(tfiga): It should be possible to make at least some of these be autodetected.
 		EXTRA_ARGS="
 			--enable-sysfs
 			--with-dri-searchpath=/system/$(get_libdir)/dri:/system/vendor/$(get_libdir)/dri
 			--sysconfdir=/system/vendor/etc
 			--enable-cross_compiling
 			--prefix=${ARC_PREFIX}/vendor
 		"
 		# FIXME(tfiga): Possibly use flag?
 		EGL_PLATFORM="android"

 		# The AOSP build system defines the Make variable
 		# PLATFORM_SDK_VERSION, and Mesa's Android.mk files use it to
 		# define the macro ANDROID_API_LEVEL. Arc emulates that here.
 		if [[ -n "${ARC_PLATFORM_SDK_VERSION}" ]]; then
 			CPPFLAGS+=" -DANDROID_API_LEVEL=${ARC_PLATFORM_SDK_VERSION}"
 		fi

 		#
 		# end of arc-mesa specific overrides
 		#
 	fi

 	if ! use llvm; then
 		export LLVM_CONFIG="no"
 	fi

 	# TODO(drinkcat): We should provide a pkg-config file for this.
 	export PVR_CFLAGS="-I${SYSROOT}${ARC_PREFIX}/vendor/include"
 	export PVR_LIBS="-L${SYSROOT}${ARC_PREFIX}/vendor/$(get_libdir) -lcutils -llog -lpvr_dri_support "

 	ECONF_SOURCE="${S}" \
 	econf \
 		${EXTRA_ARGS} \
 		--disable-option-checking \
 		--with-driver=dri \
 		--disable-glu \
 		--disable-glut \
 		--disable-omx-bellagio \
 		--disable-va \
 		--disable-vdpau \
 		--disable-xvmc \
 		--disable-asm \
 		--without-demos \
 		--enable-texture-float \
 		--disable-dri3 \
 		$(use_enable llvm llvm-shared-libs) \
 		$(use_enable X glx) \
 		$(use_enable llvm) \
 		$(use_enable egl) \
 		$(use_enable gbm) \
 		$(use_enable gles1) \
 		$(use_enable gles2) \
 		$(use_enable shared-glapi) \
 		$(use_enable gallium) \
 		$(use_enable debug) \
 		$(use_enable nptl glx-tls) \
 		$(use_enable xlib-glx) \
 		$(use_enable !xlib-glx dri) \
 		--with-dri-drivers=${DRI_DRIVERS} \
 		--with-gallium-drivers=${GALLIUM_DRIVERS} \
 		--with-vulkan-drivers=${VULKAN_DRIVERS} \
 		--with-egl-lib-suffix=_mesa \
 		--with-gles-lib-suffix=_mesa \
 		--with-platform-sdk-version=${MESA_PLATFORM_SDK_VERSION} \
 		--enable-autotools \
 		$(use egl && echo "--with-platforms=${EGL_PLATFORM}")
 }

 multilib_src_install_cheets() {
 	exeinto "${ARC_PREFIX}/vendor/$(get_libdir)"
 	newexe $(get_libdir)/libglapi.so libglapi.so

 	exeinto "${ARC_PREFIX}/vendor/$(get_libdir)/egl"
 	newexe $(get_libdir)/libEGL_mesa.so libEGL_mesa.so
 	newexe $(get_libdir)/libGLESv1_CM_mesa.so libGLESv1_CM_mesa.so
 	newexe $(get_libdir)/libGLESv2_mesa.so libGLESv2_mesa.so

 	exeinto "${ARC_PREFIX}/vendor/$(get_libdir)/dri"
 	newexe $(get_libdir)/pvr_dri.so pvr_dri.so
 }

 multilib_src_install() {
 	if use cheets; then
 		multilib_src_install_cheets
 		return
 	fi

 	base_src_install

 	# Remove redundant headers
 	# GLU and GLUT
 	rm -f "${D}"/usr/include/GL/glu*.h || die "Removing GLU and GLUT headers failed."
 	# Glew includes
 	rm -f "${D}"/usr/include/GL/{glew,glxew,wglew}.h \
 		|| die "Removing glew includes failed."

 	# Move libGL and others from /usr/lib to /usr/lib/opengl/blah/lib
 	# because user can eselect desired GL provider.
 	ebegin "Moving libGL and friends for dynamic switching"
 		dodir /usr/$(get_libdir)/opengl/${OPENGL_DIR}/{lib,extensions,include}
 		local x
 		for x in "${D}"/usr/$(get_libdir)/libGL.{la,a,so*}; do
 			if [ -f ${x} -o -L ${x} ]; then
 				mv -f "${x}" "${D}"/usr/$(get_libdir)/opengl/${OPENGL_DIR}/lib \
 					|| die "Failed to move ${x}"
 			fi
 		done
 		for x in "${D}"/usr/include/GL/{gl.h,glx.h,glext.h,glxext.h}; do
 			if [ -f ${x} -o -L ${x} ]; then
 				mv -f "${x}" "${D}"/usr/$(get_libdir)/opengl/${OPENGL_DIR}/include \
 					|| die "Failed to move ${x}"
 			fi
 		done
 	eend $?

 	dodir /usr/$(get_libdir)/dri
 	insinto "/usr/$(get_libdir)/dri/"
 	insopts -m0755
 	# install the gallium drivers we use
 	local gallium_drivers_files=( i915_dri.so nouveau_dri.so r300_dri.so r600_dri.so msm_dri.so swrast_dri.so )
 	for x in ${gallium_drivers_files[@]}; do
 		if [ -f "${S}/$(get_libdir)/gallium/${x}" ]; then
 			doins "${S}/$(get_libdir)/gallium/${x}"
 		fi
 	done

 	# install classic drivers we use
 	local classic_drivers_files=( i810_dri.so i965_dri.so nouveau_vieux_dri.so radeon_dri.so r200_dri.so )
 	for x in ${classic_drivers_files[@]}; do
 		if [ -f "${S}/$(get_libdir)/${x}" ]; then
 			doins "${S}/$(get_libdir)/${x}"
 		fi
 	done
 }

 multilib_src_install_all_cheets() {
 	# Set driconf option to enable S3TC hardware decompression
 	insinto "${ARC_PREFIX}/vendor/etc/"
 	doins "${FILESDIR}"/drirc

 	# For documentation on the feature set represented by each XML file
 	# installed into /vendor/etc/permissions, see
 	# <https://developer.android.com/reference/android/content/pm/PackageManager.html>.
 	# For example XML files for each feature, see
 	# <https://android.googlesource.com/platform/frameworks/native/+/master/data/etc>.

 	# Install init files to advertise supported API versions.
 	#
 	# IMG supported API is part of arc-img-ddk
 	# nothing to do here
 	#

 	# Install vulkan related files.
 	#
 	# IMG vulkan driver is part of arc-img-ddk
 	# nothing to do here
 	#

 	# Install permission file to declare opengles aep support.
 	if use android_aep; then
 		einfo "Using android aep."
 		insinto "${ARC_PREFIX}/vendor/etc/permissions"
 		doins "${FILESDIR}/android.hardware.opengles.aep.xml"
 	fi

 	# Install the dri header for arc-cros-gralloc
 	insinto "${ARC_PREFIX}/vendor/include/GL"
 	doins -r "${S}/include/GL/internal"
 }

 multilib_src_install_all() {
 	if use cheets; then
 		multilib_src_install_all_cheets
 		return
 	fi

 	# Set driconf option to enable S3TC hardware decompression
 	insinto "/etc/"
 	doins "${FILESDIR}"/drirc
 }

 pkg_postinst() {
 	if use cheets; then
 		return
 	fi

 	# Switch to the xorg implementation.
 	echo
 	eselect opengl set --use-old ${OPENGL_DIR}
 }

 # $1 - VIDEO_CARDS flag
 # other args - names of DRI drivers to enable
 driver_enable() {
 	case $# in
 		# for enabling unconditionally
 		1)
 			DRI_DRIVERS+=",$1"
 			;;
 		*)
 			if use $1; then
 				shift
 				for i in $@; do
 					DRI_DRIVERS+=",${i}"
 				done
 			fi
 			;;
 	esac
 }

 gallium_enable() {
 	case $# in
 		# for enabling unconditionally
 		1)
 			GALLIUM_DRIVERS+=",$1"
 			;;
 		*)
 			if use $1; then
 				shift
 				for i in $@; do
 					GALLIUM_DRIVERS+=",${i}"
 				done
 			fi
 			;;
 	esac
 }

 vulkan_enable() {
 	case $# in
 		# for enabling unconditionally
 		1)
 			VULKAN_DRIVERS+=",$1"
 			;;
 		*)
 			if use $1; then
 				shift
 				for i in $@; do
 					VULKAN_DRIVERS+=",${i}"
 				done
 			fi
 			;;
 	esac
 }
	# Copyright 1999-2010 Gentoo Foundation
	# Distributed under the terms of the GNU General Public License v2
	# $Header: /var/cvsroot/gentoo-x86/media-libs/mesa/mesa-7.9.ebuild,v 1.3 2010/12/05 17:19:14 arfrever Exp $

	EAPI="5"

	CROS_WORKON_COMMIT="2e7833ad916c493969d00871cdf56db4407b80eb"
	CROS_WORKON_TREE="040a39591a38d3dc778725575c72dcdc1b07e032"
	CROS_WORKON_PROJECT="chromiumos/third_party/mesa-img"
	CROS_WORKON_LOCALNAME="mesa-img"
	CROS_WORKON_EGIT_BRANCH="mesa-img"
	CROS_WORKON_MANUAL_UPREV="1"

	EGIT_REPO_URI="git://anongit.freedesktop.org/mesa/mesa"

	inherit base autotools multilib-minimal flag-o-matic toolchain-funcs cros-workon arc-build

	OPENGL_DIR="xorg-x11"

	DESCRIPTION="OpenGL-like graphic library for Linux"
	HOMEPAGE="http://mesa3d.sourceforge.net/"

	# Most of the code is MIT/X11.
	# ralloc is LGPL-3
	# GLES[2]/gl[2]{,ext,platform}.h are SGI-B-2.0
	LICENSE="MIT LGPL-3 SGI-B-2.0"
	SLOT="0"
	KEYWORDS="*"

	INTEL_CARDS="intel"
	RADEON_CARDS="amdgpu radeon"
	VIDEO_CARDS="${INTEL_CARDS} ${RADEON_CARDS} llvmpipe mach64 mga nouveau powervr r128 savage sis vmware tdfx via freedreno virgl"
	for card in ${VIDEO_CARDS}; do
	IUSE_VIDEO_CARDS+=" video_cards_${card}"
	done

	IUSE="${IUSE_VIDEO_CARDS}
	android_aep -android_gles2 -android_gles30
	+android_gles31 -android_gles32 -android_vulkan_compute_0
	cheets +classic debug dri egl -gallium
	-gbm gles1 gles2 -llvm +nptl pic selinux shared-glapi vulkan X xlib-glx
	cheets_user cheets_user_64"

	# llvmpipe requires ARC++ _userdebug images, ARC++ _user images can't use it
	# (b/33072485, b/28802929).
	# Only allow one vulkan driver as they all write vulkan.cheets.so.
	REQUIRED_USE="
	^^ ( android_gles2 android_gles30 android_gles31 android_gles32 )
	android_aep? ( !android_gles2 !android_gles30 )
	android_vulkan_compute_0? ( vulkan )
	cheets? (
	vulkan? ( ^^ ( video_cards_amdgpu video_cards_intel video_cards_powervr ) )
	video_cards_amdgpu? ( llvm )
	video_cards_llvmpipe? ( !cheets_user !cheets_user_64 )
	)"

	DEPEND="video_cards_powervr? (
	media-libs/arc-img-ddk
	!<media-libs/arc-img-ddk-1.9
	)
	cheets? (
	>=x11-libs/arc-libdrm-2.4.82[${MULTILIB_USEDEP}]
	llvm? ( sys-devel/arc-llvm:=[${MULTILIB_USEDEP}] )
	video_cards_amdgpu? (
	dev-libs/arc-libelf[${MULTILIB_USEDEP}]
	)
	)"

	RDEPEND="${DEPEND}"

	# It is slow without texrels, if someone wants slow
	# mesa without texrels +pic use is worth the shot
	QA_EXECSTACK="usr/lib/opengl/xorg-x11/lib/libGL.so"
	QA_WX_LOAD="usr/lib/opengl/xorg-x11/lib/libGL.so"

	# Think about: ggi, fbcon, no-X configs

	pkg_setup() {
	# workaround toc-issue wrt #386545
	use ppc64 && append-flags -mminimal-toc

	# Remove symlinks created by an earlier version so we don't have
	# install conflicts.
	# TODO: Delete this after June 2019, since everybody should have
	# upgraded by then.
	local d
	for d in EGL GL GLES GLES2 GLES3 KHR; do
	local replaced_link="${ROOT}${ARC_PREFIX}/vendor/include/${d}"
	if [[ -L "${replaced_link}" ]]; then
	rm -f "${replaced_link}"
	fi
	done
	}

	src_prepare() {
	# workaround for cros-workon not preserving git metadata
	if [[ ${PV} == 9999* && "${CROS_WORKON_INPLACE}" != "1" ]]; then
	echo "#define MESA_GIT_SHA1 \"git-deadbeef\"" > src/git_sha1.h
	fi

	# apply patches
	if [[ ${PV} != 9999* && -n ${SRC_PATCHES} ]]; then
	EPATCH_FORCE="yes" \
	EPATCH_SOURCE="${WORKDIR}/patches" \
	EPATCH_SUFFIX="patch" \
	epatch
	fi
	# FreeBSD 6.* doesn't have posix_memalign().
	if [[ ${CHOST} == -freebsd6. ]]; then
	sed -i \
	-e "s/-DHAVE_POSIX_MEMALIGN//" \
	configure.ac \|\| die
	fi

	# Restrict gles version based on USE flag. (See crbug.com/30202361, b/30202371, b/31041422, b:68023287)
	if use android_gles32; then
	einfo "Limiting android to gles32."
	epatch "${FILESDIR}/gles32/0001-limit-gles-version.patch"
	elif use android_gles31; then
	einfo "Limiting android to gles31."
	epatch "${FILESDIR}/gles31/0001-limit-gles-version.patch"
	elif use android_gles30; then
	einfo "Limiting android to gles30."
	epatch "${FILESDIR}/gles30/0001-limit-gles-version.patch"
	elif use android_gles2; then
	einfo "Limiting android to gles2."
	epatch "${FILESDIR}/gles2/0001-limit-gles-version.patch"
	fi

	epatch "${FILESDIR}"/19.0-util-Don-t-block-SIGSYS-for-new-threads.patch
	epatch "${FILESDIR}"/19.0-radv-Use-given-stride-for-images-imported-from-Andro.patch

	epatch "${FILESDIR}"/CHROMIUM-intel-limit-urb-size-for-SKL-KBL-CFL-GT1.patch

	epatch "${FILESDIR}"/FROMLIST-configure.ac-meson.build-Add-optio.patch
	epatch "${FILESDIR}"/CHROMIUM-configure.ac-depend-on-libnativewindow-when-appropri.patch
	epatch "${FILESDIR}"/CHROMIUM-egl-android-plumb-swrast-option.patch
	epatch "${FILESDIR}"/CHROMIUM-egl-android-use-swrast-option-in-droid_load_driver.patch
	epatch "${FILESDIR}"/CHROMIUM-egl-android-fallback-to-software-rendering.patch

	epatch "${FILESDIR}"/CHROMIUM-anv-move-anv_GetMemoryAndroidHardwareBufferANDROID-u.patch
	epatch "${FILESDIR}"/CHROMIUM-remove-unknown-android-extensions.patch
	epatch "${FILESDIR}"/CHROMIUM-disable-unknown-device-extensions.patch
	epatch "${FILESDIR}"/CHROMIUM-disable-VK_KHR_draw_indirect_count.patch

	epatch "${FILESDIR}"/CHROMIUM-HACK-radv-disable-TC-compatible-HTILE-on-Stoney.patch

	epatch "${FILESDIR}"/FROMLIST-egl-fix-KHR_partial_update-without-EXT_buff.patch
	epatch "${FILESDIR}"/FROMLIST-egl-android-require-ANDROID_native_fence_sy.patch
	epatch "${FILESDIR}"/CHROMIUM-Disable-EGL_KHR_partial_update.patch

	epatch "${FILESDIR}"/FROMLIST-glsl-fix-an-incorrect-max_array_access-afte.patch
	epatch "${FILESDIR}"/FROMLIST-glsl-fix-a-binding-points-assignment-for-ss.patch

	epatch "${FILESDIR}"/FROMLIST-glcpp-Hack-to-handle-expressions-in-line-di.patch
	epatch "${FILESDIR}"/UPSTREAM-intel-Add-support-for-Comet-Lake.patch

	epatch "${FILESDIR}"/UPSTREAM-st-mesa-fix-2-crashes-in-st_tgsi_lower_yuv.patch

	epatch "${FILESDIR}"/CHROMIUM-Add-HAL_PIXEL_FORMAT_YCbCr_420_888-in-vk_format.patch
	epatch "${FILESDIR}"/CHROMIUM-Add-HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED-in-vk_fo.patch

	epatch "${FILESDIR}"/CHROMIUM-radv-Disable-VK_KHR_create_renderpass2.patch

	# IMG patches
	epatch "${FILESDIR}"/0001-dri-pvr-Introduce-PowerVR-DRI-driver.patch
	epatch "${FILESDIR}"/0003-dri-Add-some-new-DRI-formats-and-fourccs.patch
	epatch "${FILESDIR}"/0005-GL_EXT_sparse_texture-entry-points.patch
	epatch "${FILESDIR}"/0006-Add-support-for-various-GLES-extensions.patch
	epatch "${FILESDIR}"/0011-GL_EXT_shader_pixel_local_storage2-entry-points.patch
	epatch "${FILESDIR}"/0012-GL_IMG_framebuffer_downsample-entry-points.patch
	epatch "${FILESDIR}"/0013-GL_OVR_multiview-entry-points.patch
	epatch "${FILESDIR}"/0014-Add-OVR_multiview_multisampled_render_to_texture.patch
	epatch "${FILESDIR}"/0019-egl-automatically-call-eglReleaseThread-on-thread-te.patch
	epatch "${FILESDIR}"/0040-GL_EXT_clip_control-entry-point.patch
	epatch "${FILESDIR}"/0045-egl-dri2-try-to-bind-old-context-if-bindContext-fail.patch
	epatch "${FILESDIR}"/0047-mapi-gen-always-use-offsets-from-static-data.patch
	epatch "${FILESDIR}"/0601-mesa-img-Android-build-fixups.patch

	base_src_prepare
	eautoreconf
	}

	src_configure() {
	cros_optimize_package_for_speed

	if use cheets; then
	#
	# cheets-specific overrides
	#

	arc-build-select-clang
	fi

	multilib-minimal_src_configure
	}

	multilib_src_configure() {
	tc-getPROG PKG_CONFIG pkg-config

	# IMG code
	driver_enable pvr

	#
	# IMG vulkan driver is part of arc-img-ddk
	# nothing to do here
	#

	export LLVM_CONFIG=${SYSROOT}/usr/bin/llvm-config-host
	EGL_PLATFORM="surfaceless"

	if use cheets; then
	#
	# cheets-specific overrides
	#

	MESA_PLATFORM_SDK_VERSION=${ARC_PLATFORM_SDK_VERSION}

	# Use llvm-config coming from ARC++ build.
	export LLVM_CONFIG="${ARC_SYSROOT}/build/bin/llvm-config-host"

	# FIXME(tfiga): It should be possible to make at least some of these be autodetected.
	EXTRA_ARGS="
	--enable-sysfs
	--with-dri-searchpath=/system/$(get_libdir)/dri:/system/vendor/$(get_libdir)/dri
	--sysconfdir=/system/vendor/etc
	--enable-cross_compiling
	--prefix=${ARC_PREFIX}/vendor
	"
	# FIXME(tfiga): Possibly use flag?
	EGL_PLATFORM="android"

	# The AOSP build system defines the Make variable
	# PLATFORM_SDK_VERSION, and Mesa's Android.mk files use it to
	# define the macro ANDROID_API_LEVEL. Arc emulates that here.
	if [[ -n "${ARC_PLATFORM_SDK_VERSION}" ]]; then
	CPPFLAGS+=" -DANDROID_API_LEVEL=${ARC_PLATFORM_SDK_VERSION}"
	fi

	#
	# end of arc-mesa specific overrides
	#
	fi

	if ! use llvm; then
	export LLVM_CONFIG="no"
	fi

	# TODO(drinkcat): We should provide a pkg-config file for this.
	export PVR_CFLAGS="-I${SYSROOT}${ARC_PREFIX}/vendor/include"
	export PVR_LIBS="-L${SYSROOT}${ARC_PREFIX}/vendor/$(get_libdir) -lcutils -llog -lpvr_dri_support "

	ECONF_SOURCE="${S}" \
	econf \
	${EXTRA_ARGS} \
	--disable-option-checking \
	--with-driver=dri \
	--disable-glu \
	--disable-glut \
	--disable-omx-bellagio \
	--disable-va \
	--disable-vdpau \
	--disable-xvmc \
	--disable-asm \
	--without-demos \
	--enable-texture-float \
	--disable-dri3 \
	$(use_enable llvm llvm-shared-libs) \
	$(use_enable X glx) \
	$(use_enable llvm) \
	$(use_enable egl) \
	$(use_enable gbm) \
	$(use_enable gles1) \
	$(use_enable gles2) \
	$(use_enable shared-glapi) \
	$(use_enable gallium) \
	$(use_enable debug) \
	$(use_enable nptl glx-tls) \
	$(use_enable xlib-glx) \
	$(use_enable !xlib-glx dri) \
	--with-dri-drivers=${DRI_DRIVERS} \
	--with-gallium-drivers=${GALLIUM_DRIVERS} \
	--with-vulkan-drivers=${VULKAN_DRIVERS} \
	--with-egl-lib-suffix=_mesa \
	--with-gles-lib-suffix=_mesa \
	--with-platform-sdk-version=${MESA_PLATFORM_SDK_VERSION} \
	--enable-autotools \
	$(use egl && echo "--with-platforms=${EGL_PLATFORM}")
	}

	multilib_src_install_cheets() {
	exeinto "${ARC_PREFIX}/vendor/$(get_libdir)"
	newexe $(get_libdir)/libglapi.so libglapi.so

	exeinto "${ARC_PREFIX}/vendor/$(get_libdir)/egl"
	newexe $(get_libdir)/libEGL_mesa.so libEGL_mesa.so
	newexe $(get_libdir)/libGLESv1_CM_mesa.so libGLESv1_CM_mesa.so
	newexe $(get_libdir)/libGLESv2_mesa.so libGLESv2_mesa.so

	exeinto "${ARC_PREFIX}/vendor/$(get_libdir)/dri"
	newexe $(get_libdir)/pvr_dri.so pvr_dri.so
	}

	multilib_src_install() {
	if use cheets; then
	multilib_src_install_cheets
	return
	fi

	base_src_install

	# Remove redundant headers
	# GLU and GLUT
	rm -f "${D}"/usr/include/GL/glu*.h \|\| die "Removing GLU and GLUT headers failed."
	# Glew includes
	rm -f "${D}"/usr/include/GL/{glew,glxew,wglew}.h \
	\|\| die "Removing glew includes failed."

	# Move libGL and others from /usr/lib to /usr/lib/opengl/blah/lib
	# because user can eselect desired GL provider.
	ebegin "Moving libGL and friends for dynamic switching"
	dodir /usr/$(get_libdir)/opengl/${OPENGL_DIR}/{lib,extensions,include}
	local x
	for x in "${D}"/usr/$(get_libdir)/libGL.{la,a,so*}; do
	if [ -f ${x} -o -L ${x} ]; then
	mv -f "${x}" "${D}"/usr/$(get_libdir)/opengl/${OPENGL_DIR}/lib \
	\|\| die "Failed to move ${x}"
	fi
	done
	for x in "${D}"/usr/include/GL/{gl.h,glx.h,glext.h,glxext.h}; do
	if [ -f ${x} -o -L ${x} ]; then
	mv -f "${x}" "${D}"/usr/$(get_libdir)/opengl/${OPENGL_DIR}/include \
	\|\| die "Failed to move ${x}"
	fi
	done
	eend $?

	dodir /usr/$(get_libdir)/dri
	insinto "/usr/$(get_libdir)/dri/"
	insopts -m0755
	# install the gallium drivers we use
	local gallium_drivers_files=( i915_dri.so nouveau_dri.so r300_dri.so r600_dri.so msm_dri.so swrast_dri.so )
	for x in ${gallium_drivers_files[@]}; do
	if [ -f "${S}/$(get_libdir)/gallium/${x}" ]; then
	doins "${S}/$(get_libdir)/gallium/${x}"
	fi
	done

	# install classic drivers we use
	local classic_drivers_files=( i810_dri.so i965_dri.so nouveau_vieux_dri.so radeon_dri.so r200_dri.so )
	for x in ${classic_drivers_files[@]}; do
	if [ -f "${S}/$(get_libdir)/${x}" ]; then
	doins "${S}/$(get_libdir)/${x}"
	fi
	done
	}

	multilib_src_install_all_cheets() {
	# Set driconf option to enable S3TC hardware decompression
	insinto "${ARC_PREFIX}/vendor/etc/"
	doins "${FILESDIR}"/drirc

	# For documentation on the feature set represented by each XML file
	# installed into /vendor/etc/permissions, see
	# <https://developer.android.com/reference/android/content/pm/PackageManager.html>.
	# For example XML files for each feature, see
	# <https://android.googlesource.com/platform/frameworks/native/+/master/data/etc>.

	# Install init files to advertise supported API versions.
	#
	# IMG supported API is part of arc-img-ddk
	# nothing to do here
	#

	# Install vulkan related files.
	#
	# IMG vulkan driver is part of arc-img-ddk
	# nothing to do here
	#

	# Install permission file to declare opengles aep support.
	if use android_aep; then
	einfo "Using android aep."
	insinto "${ARC_PREFIX}/vendor/etc/permissions"
	doins "${FILESDIR}/android.hardware.opengles.aep.xml"
	fi

	# Install the dri header for arc-cros-gralloc
	insinto "${ARC_PREFIX}/vendor/include/GL"
	doins -r "${S}/include/GL/internal"
	}

	multilib_src_install_all() {
	if use cheets; then
	multilib_src_install_all_cheets
	return
	fi

	# Set driconf option to enable S3TC hardware decompression
	insinto "/etc/"
	doins "${FILESDIR}"/drirc
	}

	pkg_postinst() {
	if use cheets; then
	return
	fi

	# Switch to the xorg implementation.
	echo
	eselect opengl set --use-old ${OPENGL_DIR}
	}

	# $1 - VIDEO_CARDS flag
	# other args - names of DRI drivers to enable
	driver_enable() {
	case $# in
	# for enabling unconditionally
	1)
	DRI_DRIVERS+=",$1"
	;;
	*)
	if use $1; then
	shift
	for i in $@; do
	DRI_DRIVERS+=",${i}"
	done
	fi
	;;
	esac
	}

	gallium_enable() {
	case $# in
	# for enabling unconditionally
	1)
	GALLIUM_DRIVERS+=",$1"
	;;
	*)
	if use $1; then
	shift
	for i in $@; do
	GALLIUM_DRIVERS+=",${i}"
	done
	fi
	;;
	esac
	}

	vulkan_enable() {
	case $# in
	# for enabling unconditionally
	1)
	VULKAN_DRIVERS+=",$1"
	;;
	*)
	if use $1; then
	shift
	for i in $@; do
	VULKAN_DRIVERS+=",${i}"
	done
	fi
	;;
	esac
	}