# Copyright 1999-2009 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: /var/cvsroot/gentoo-x86/x11-drivers/ati-drivers/ati-drivers-9.9-r2.ebuild,v 1.6 2009/10/24 15:09:42 scarabeus Exp $

EAPI="2"

inherit eutils multilib linux-mod toolchain-funcs versionator

DESCRIPTION="Ati precompiled drivers for r600 (HD Series) and newer chipsets"
HOMEPAGE="http://www.ati.com"
# 8.ble will be used for beta releases.
if [[ $(get_major_version) > 8 ]]; then
	ATI_URL="https://a248.e.akamai.net/f/674/9206/0/www2.ati.com/drivers/linux/"
	SRC_URI="${ATI_URL}/ati-driver-installer-${PV/./-}-x86.x86_64.run"
	FOLDER_PREFIX="common/"
else
	SRC_URI="https://launchpad.net/ubuntu/karmic/+source/fglrx-installer/2:${PV}-0ubuntu1/+files/fglrx-installer_${PV}.orig.tar.gz"
	FOLDER_PREFIX=""
fi
IUSE="debug +modules multilib"

LICENSE="AMD GPL-2 QPL-1.0 as-is"
KEYWORDS="amd64 x86"
SLOT="1"

RDEPEND="
	!>=media-libs/mesa-7.6
	!x11-drivers/ati-drivers:0
	!x11-apps/ati-drivers-extra
	!>=x11-base/xorg-server-1.7.0
	>=app-admin/eselect-opengl-1.0.8
	sys-power/acpid
	x11-apps/xauth
	>=x11-base/xorg-server-1.6.3.901-r2
	x11-libs/libXinerama
	x11-libs/libXrandr
	multilib? ( app-emulation/emul-linux-x86-xlibs )
"

DEPEND="${RDEPEND}
	x11-proto/inputproto
	x11-proto/xf86miscproto
	x11-proto/xf86vidmodeproto
	x11-proto/xineramaproto
"

EMULTILIB_PKG="true"

S="${WORKDIR}"

# QA Silencing
QA_TEXTRELS="
	usr/lib*/opengl/ati/lib/libGL.so.1.2
	usr/lib*/libatiadlxx.so
	usr/lib*/xorg/modules/glesx.so
	usr/lib*/libaticaldd.so
	usr/lib*/dri/fglrx_dri.so
"

QA_EXECSTACK="
	opt/bin/atiode
	opt/bin/amdcccle
	usr/lib*/opengl/ati/lib/libGL.so.1.2
	usr/lib*/dri/fglrx_dri.so
"

QA_WX_LOAD="
	usr/lib*/opengl/ati/lib/libGL.so.1.2
	usr/lib*/dri/fglrx_dri.so
"

QA_PRESTRIPPED="
	usr/lib\(32\|64\)\?/libXvBAW.so.1.0
	usr/lib\(32\|64\)\?/opengl/ati/lib/libGL.so.1.2
	usr/lib\(32\|64\)\?/xorg/modules/glesx.so
	usr/lib\(32\|64\)\?/libAMDXvBA.so.1.0
	usr/lib\(32\|64\)\?/libaticaldd.so
	usr/lib\(32\|64\)\?/dri/fglrx_dri.so
"

QA_SONAME="
	usr/lib\(32\|64\)\?/libatiadlxx.so
	usr/lib\(32\|64\)\?/libaticalcl.so
	usr/lib\(32\|64\)\?/libaticaldd.so
	usr/lib\(32\|64\)\?/libaticalrt.so
"

_check_kernel_config() {
	if ! kernel_is 2 6; then
		eerror "You need a 2.6 linux kernel to compile against!"
		die "No 2.6 Kernel found"
	fi

	if kernel_is ge 2 6 25 && linux_chkconfig_present PREEMPT_RCU; then
		eerror "${P} is incompatible with RCU preemption (bug #223281)."
		eerror "Please disable it:"
		eerror "    CONFIG_PREEMT_RCU=n"
		eerror "in /usr/src/linux/.config or"
		eerror "    Processor type and features  --->"
		eerror "        [ ] Preemptible RCU"
		eerror "in the 'menuconfig'"
		die "CONFIG_PREEMT_RCU enabled"
	fi

	# kernel hook checking up latest allowed version
	if kernel_is ge 2 6 32; then
		eerror "Kernels newer then 2.6.31 are not supported by this driver"
		die "Downgrade your kernel"
	fi

	if ! linux_chkconfig_present MTRR; then
		ewarn "You don't have MTRR support enabled in the kernel."
		ewarn "Direct rendering will not work."
	fi

	if linux_chkconfig_builtin DRM; then
		ewarn "You have DRM support built in to the kernel"
		ewarn "Direct rendering will not work."
	fi

	if ! linux_chkconfig_present AGP && \
		! linux_chkconfig_present PCIEPORTBUS; then
		ewarn "You don't have AGP and/or PCIe support enabled in the kernel"
		ewarn "Direct rendering will not work."
	fi

	if ! linux_chkconfig_present ACPI; then
		eerror "${P} requires the ACPI support in the kernel"
		eerror "Please enable it:"
		eerror "    CONFIG_ACPI=y"
		eerror "in /usr/src/linux/.config or"
		eerror "    Power management and ACPI options --->"
		eerror "        [*] Power Management support"
		eerror "in the 'menuconfig'"
		die "CONFIG_ACPI disabled"
	fi

	if ! linux_chkconfig_present MAGIC_SYSRQ; then
		eerror "${P} requires the magic SysRq keys in the kernel."
		eerror "Please enable it:"
		eerror "    CONFIG_MAGIC_SYSRQ=y"
		eerror "in /usr/src/linux/.config or"
		eerror "    Kernel hacking  --->"
		eerror "        [*] Magic SysRq key"
		eerror "in the 'menuconfig'"
		die "CONFIG_MAGIC_SYSRQ disabled"
	fi

	if ! linux_chkconfig_present PCI_MSI; then
		eerror "${P} requires MSI in the kernel."
		eerror "Please enable it:"
		eerror "    CONFIG_PCI_MSI=y"
		eerror "in /usr/src/linux/.config or"
		eerror "    Bus options (PCI etc.)  --->"
		eerror "        [*] Message Signaled Interrupts (MSI and MSI-X)"
		eerror "in the kernel config."
		die "CONFIG_PCI_MSI disabled"
	fi

	if linux_chkconfig_present LOCKDEP; then
		eerror "You've enabled LOCKDEP -- lock tracking -- in the kernel."
		eerror "Unfortunately, this option exports the symbol lock_acquire as GPL-only."
		eerror "This prevents ${P} from compiling with an error like this:"
		eerror "FATAL: modpost: GPL-incompatible module fglrx.ko uses GPL-only symbol 'lock_acquire'"
		eerror "Please make sure the following options have been unset:"
		eerror "    Kernel hacking  --->"
		eerror "        [ ] Lock debugging: detect incorrect freeing of live locks"
		eerror "        [ ] Lock debugging: prove locking correctness"
		eerror "        [ ] Lock usage statistics"
		eerror "in 'menuconfig'"
		die "LOCKDEP enabled"
	fi
}

pkg_setup() {
	# Define module dir.
	MODULE_DIR="${S}/${FOLDER_PREFIX}/lib/modules/fglrx/build_mod"
	# xorg folder
	BASE_DIR="${S}/x740"

	# amd64/x86
	if use amd64 ; then
		MY_BASE_DIR="${BASE_DIR}_64a"
		PKG_LIBDIR=lib64
		ARCH_DIR="${S}/arch/x86_64"
	else
		MY_BASE_DIR="${BASE_DIR}"
		PKG_LIBDIR=lib
		ARCH_DIR="${S}/arch/x86"
	fi

	if use modules; then
		MODULE_NAMES="fglrx(video:${S}/${FOLDER_PREFIX}/lib/modules/fglrx/build_mod/2.6.x)"
		BUILD_TARGETS="kmod_build"
		linux-mod_pkg_setup
		BUILD_PARAMS="GCC_VER_MAJ=$(gcc-major-version) KVER=${KV_FULL} KDIR=${KV_DIR}"
		_check_kernel_config
	fi

	elog
	elog "Please note that this driver supports only graphic cards based on"
	elog "r600 chipset and newer."
	elog "This represent the ATI Radeon HD series at this moment."
	elog
	elog "If your card is older one, usage of ${CATEGORY}/xf86-video-ati"
	elog "as replacement is highly recommended. Rather than staying with"
	elog "old versions of this driver."
	elog "For migration informations please reffer to:"
	elog "http://www.gentoo.org/proj/en/desktop/x/x11/ati-migration-guide.xml"
	einfo
}

src_unpack() {
	if [[ $(get_major_version) > 8 ]]; then
		# Switching to a standard way to extract the files since otherwise no signature file
		# would be created
		local src="${DISTDIR}/${A}"
		sh "${src}" --extract "${S}"  2&>1 /dev/null
	else
		unpack ${A}
	fi
}

src_prepare() {
	epatch "${FILESDIR}"/ati-drivers-xen.patch

	# All kernel options for prepare are ment to be in here
	if use modules; then
		# version patches
		# epatch "${FILESDIR}"/kernel/${PV}-*.patch
		if use debug; then
			sed -i '/^#define DRM_DEBUG_CODE/s/0/1/' \
				"${MODULE_DIR}/firegl_public.c" \
				|| die "Failed to enable debug output."
		fi
	fi

	# Kernel patches
	kernel_is ge 2 6 31 && epatch "${FILESDIR}"/kernel/2.6.31-fglrx_find_task_by_vpid.patch

	# These are the userspace utilities that we also have source for.
	# We rebuild these later.
	rm \
		"${ARCH_DIR}"/usr/X11R6/bin/{fgl_glxgears,fglrx_xgamma} \
		"${ARCH_DIR}"/usr/X11R6/${PKG_LIBDIR}/libfglrx_gamma* \
		|| die "bin rm failed"

	# ACPI fixups
	sed -i \
		-e "s:/var/lib/xdm/authdir/authfiles/:/var/run/xauth/:" \
		-e "s:/var/lib/gdm/:/var/gdm/:" \
		"${S}/${FOLDER_PREFIX}etc/ati/authatieventsd.sh" \
		|| die "sed failed."

	# Since "who" is in coreutils, we're using that one instead of "finger".
	sed -i -e 's:finger:who:' \
		"${S}/${FOLDER_PREFIX}usr/share/doc/fglrx/examples/etc/acpi/ati-powermode.sh" \
		|| die "Replacing 'finger' with 'who' failed."
	# Adjust paths in the script from /usr/X11R6/bin/ to /opt/bin/ and
	# add function to detect default state.
	epatch "${FILESDIR}"/ati-powermode-opt-path-2.patch || die "Failed to epatch powermode-opt-path-2.patch"

	cd "${MODULE_DIR}"
	ln -s "${ARCH_DIR}"/lib/modules/fglrx/build_mod/libfglrx_ip.a.GCC$(gcc-major-version) \
		|| die "symlinking precompiled core failed"

	convert_to_m 2.6.x/Makefile || die "convert_to_m failed"

	# When built with ati's make.sh it defines a bunch of macros if
	# certain .config values are set, falling back to less reliable
	# detection methods if linux/autoconf.h is not available. We
	# simply use the linux/autoconf.h settings directly, bypassing the
	# detection script.
	sed -i -e 's/__SMP__/CONFIG_SMP/' *.c *h || die "SMP sed failed"
	sed -i -e 's/ifdef MODVERSIONS/ifdef CONFIG_MODVERSIONS/' *.c *.h \
		|| die "MODVERSIONS sed failed"
	cd "${S}"

	mkdir extra || die "mkdir failed"
	cd extra
	unpack ./../${FOLDER_PREFIX}usr/src/ati/fglrx_sample_source.tgz
	sed -i -e 's:include/extensions/extutil.h:X11/extensions/extutil.h:' \
		lib/fglrx_gamma/fglrx_gamma.c || die "include fixup failed"
	# Add a category.
	mv programs/fglrx_gamma/fglrx_xgamma.{man,1} || die "man mv failed"
}

src_compile() {
	use modules && linux-mod_src_compile

	ebegin "Building fgl_glxgears"
	cd "${S}"/extra/fgl_glxgears
	# These extra libs/utils either have an Imakefile that does not
	# work very well without tweaking or a Makefile ignoring CFLAGS
	# and the like. We bypass those.

	# The -DUSE_GLU is needed to compile using nvidia headers
	# according to a comment in ati-drivers-extra-8.33.6.ebuild.
	"$(tc-getCC)" -o fgl_glxgears ${CFLAGS} ${LDFLAGS} -DUSE_GLU \
		-I"${S}"/${FOLDER_PREFIX}usr/include fgl_glxgears.c \
		-lGL -lGLU -lX11 -lm || die "fgl_glxgears build failed"
	eend $?

	ebegin "Building fglrx_gamma lib"
	cd "${S}"/extra/lib/fglrx_gamma
	"$(tc-getCC)" -shared -fpic -o libfglrx_gamma.so.1.0 ${CFLAGS} ${LDFLAGS} \
		-DXF86MISC -Wl,-soname,libfglrx_gamma.so.1.0 fglrx_gamma.c \
		-lXext || die "fglrx_gamma lib build failed"
	ln -s libfglrx_gamma.so.1.0 libfglrx_gamma.so || die "ln failed"
	ln -s libfglrx_gamma.so.1.0 libfglrx_gamma.so.1 || die "ln failed"
	eend $?

	ebegin "Building fglrx_gamma util"
	cd "${S}"/extra/programs/fglrx_gamma
	"$(tc-getCC)" -o fglrx_xgamma ${CFLAGS} ${LDFLAGS} \
		-I../../../${FOLDER_PREFIX}usr/X11R6/include -L../../lib/fglrx_gamma \
		fglrx_xgamma.c -lm -lfglrx_gamma -lX11 \
		|| die "fglrx_gamma util build failed"
	eend $?

}

src_install() {
	use modules && linux-mod_src_install

	# We can do two things here, and neither of them is very nice.

	# For direct rendering libGL has to be able to load one or more
	# dri modules (files ending in _dri.so, like fglrx_dri.so).
	# Gentoo's mesa looks for these files in the location specified by
	# LIBGL_DRIVERS_PATH or LIBGL_DRIVERS_DIR, then in the hardcoded
	# location /usr/$(get_libdir)/dri. Ati's libGL does the same
	# thing, but the hardcoded location is /usr/X11R6/lib/modules/dri
	# on x86 and amd64 32bit, /usr/X11R6/lib64/modules/dri on amd64
	# 64bit. So we can either put the .so files in that (unusual,
	# compared to "normal" mesa libGL) location or set
	# LIBGL_DRIVERS_PATH. We currently do the latter. See also bug
	# 101539.

	# The problem with this approach is that LIBGL_DRIVERS_PATH
	# *overrides* the default hardcoded location, it does not extend
	# it. So if ati-drivers is merged but a non-ati libGL is selected
	# and its hardcoded path does not match our LIBGL_DRIVERS_PATH
	# (because it changed in a newer mesa or because it was compiled
	# for a different set of multilib abis than we are) stuff breaks.

	# We create one file per ABI to work with "native" multilib, see
	# below.

	echo "COLON_SEPARATED=LIBGL_DRIVERS_PATH" > "${T}/03ati-colon-sep"
	doenvd "${T}/03ati-colon-sep" || die

	# All libraries that we have a 32 bit and 64 bit version of on
	# amd64 are installed in src_install-libs. Everything else
	# (including libraries only available in native 64bit on amd64)
	# goes in here.

	# There used to be some code here that tried to detect running
	# under a "native multilib" portage ((precursor of)
	# http://dev.gentoo.org/~kanaka/auto-multilib/). I removed that, it
	# should just work (only doing some duplicate work). --marienz
	if has_multilib_profile; then
		local OABI=${ABI}
		for ABI in $(get_install_abis); do
			src_install-libs
		done
		ABI=${OABI}
		unset OABI
	else
		src_install-libs
	fi

	# This is sorted by the order the files occur in the source tree.

	# X modules.
	exeinto /usr/$(get_libdir)/xorg/modules/drivers
	doexe "${MY_BASE_DIR}"/usr/X11R6/${PKG_LIBDIR}/modules/drivers/fglrx_drv.so || die
	exeinto /usr/$(get_libdir)/xorg/modules/linux
	doexe "${MY_BASE_DIR}"/usr/X11R6/${PKG_LIBDIR}/modules/linux/libfglrxdrm.so || die
	exeinto /usr/$(get_libdir)/xorg/modules
	doexe "${MY_BASE_DIR}"/usr/X11R6/${PKG_LIBDIR}/modules/{esut.a,glesx.so,amdxmm.so} || die

	# Arch-specific files.
	# (s)bin.
	into /opt
	dosbin "${ARCH_DIR}"/usr/sbin/atieventsd || die
	# We cleaned out the compilable stuff in src_unpack
	dobin "${ARCH_DIR}"/usr/X11R6/bin/* || die

	# lib.
	exeinto /usr/$(get_libdir)
	# Everything except for the libGL.so installed in src_install-libs.
	doexe $(find "${ARCH_DIR}"/usr/X11R6/${PKG_LIBDIR} \
		-maxdepth 1 -type f -name '*.so*' -not -name 'libGL.so*')
	insinto /usr/$(get_libdir)
	doins $(find "${ARCH_DIR}"/usr/X11R6/${PKG_LIBDIR} \
		-maxdepth 1 -type f -not -name '*.so*')

	# Common files.
	# etc.
	insinto /etc/ati
	# Everything except for the authatieventsd.sh script.
	doins ${FOLDER_PREFIX}etc/ati/{logo*,control,atiogl.xml,signature,amdpcsdb.default}
	insopts -m0755
	doins ${FOLDER_PREFIX}etc/ati/authatieventsd.sh || die

	# include.
	insinto /usr
	doins -r ${FOLDER_PREFIX}usr/include || die
	insinto /usr/include/X11/extensions
	doins ${FOLDER_PREFIX}usr/X11R6/include/X11/extensions/fglrx_gamma.h || die

	# Just the atigetsysteminfo.sh script.
	into /usr
	dosbin ${FOLDER_PREFIX}usr/sbin/* || die

	# data files for the control panel.
	insinto /usr/share
	doins -r ${FOLDER_PREFIX}usr/share/ati || die
	insinto /usr/share/pixmaps
	doins ${FOLDER_PREFIX}usr/share/icons/ccc_{large,small}.xpm || die
	make_desktop_entry amdcccle 'ATI Catalyst Control Center' \
		ccc_large System

	# doc.
	dohtml -r ${FOLDER_PREFIX}usr/share/doc/fglrx || die

	doman ${FOLDER_PREFIX}usr/share/man/man8/atieventsd.8 || die

	pushd ${FOLDER_PREFIX}usr/share/doc/fglrx/examples/etc/acpi > /dev/null

	exeinto /etc/acpi
	doexe ati-powermode.sh || die
	insinto /etc/acpi/events
	doins events/* || die

	popd > /dev/null

	# Done with the "source" tree. Install tools we rebuilt:
	dobin extra/fgl_glxgears/fgl_glxgears || die
	newdoc extra/fgl_glxgears/README README.fgl_glxgears || die

	dolib extra/lib/fglrx_gamma/*so* || die
	newdoc extra/lib/fglrx_gamma/README README.libfglrx_gamma || die

	dobin extra/programs/fglrx_gamma/fglrx_xgamma || die
	doman extra/programs/fglrx_gamma/fglrx_xgamma.1 || die
	newdoc extra/programs/fglrx_gamma/README README.fglrx_gamma || die

	# Gentoo-specific stuff:
	newinitd "${FILESDIR}"/atieventsd.init atieventsd \
		|| die "Failed to install atieventsd.init.d"
	echo 'ATIEVENTSDOPTS=""' > "${T}"/atieventsd.conf
	newconfd "${T}"/atieventsd.conf atieventsd || die
}

src_install-libs() {
	if [[ "${ABI}" == "amd64" ]]; then
		local EX_BASE_DIR="${BASE_DIR}_64a"
		local pkglibdir=lib64
		local MY_ARCH_DIR="${S}/arch/x86_64"
	else
		local EX_BASE_DIR="${BASE_DIR}"
		local pkglibdir=lib
		local MY_ARCH_DIR="${S}/arch/x86"
	fi
	einfo "ati tree '${pkglibdir}' -> '$(get_libdir)' on system"

	local ATI_ROOT=/usr/$(get_libdir)/opengl/ati
	# To make sure we do not miss a spot when these change.
	local libmajor=1 libminor=2
	local libver=${libmajor}.${libminor}

	# The GLX libraries
	# (yes, this really is "lib" even on amd64/multilib --marienz)
	exeinto ${ATI_ROOT}/lib
	doexe "${MY_ARCH_DIR}"/usr/X11R6/${pkglibdir}/libGL.so.${libver} || die
	dosym libGL.so.${libver} ${ATI_ROOT}/lib/libGL.so.${libmajor} || die
	dosym libGL.so.${libver} ${ATI_ROOT}/lib/libGL.so || die

	exeinto ${ATI_ROOT}/extensions
	doexe "${EX_BASE_DIR}"/usr/X11R6/${pkglibdir}/modules/extensions/* || die

	# DRI modules, installed into the path used by recent versions of mesa.
	exeinto /usr/$(get_libdir)/dri
	doexe "${MY_ARCH_DIR}"/usr/X11R6/${pkglibdir}/modules/dri/fglrx_dri.so || die

	# AMD Cal libraries
	exeinto /usr/$(get_libdir)
	doexe "${MY_ARCH_DIR}"/usr/${pkglibdir}/*.so || die

	# warn about removal of .la file
	# WILL BE NEEDED IN FUTURE
	#if [[ -e ${ATI_ROOT}/lib/libGL.la ]]; then
	#	ewarn "Since this version the libGL.la is not installed"
	#	ewarn "For fixing this issues please take look on:"
	#	ewarn "  dev-util/lafilefixer"
	#	ewarn "This step is needed because the libGL.la is going"
	#	ewarn "to be removed by newer versions of the media-libs/mesa"
	#fi
	# Make up a libGL.la. Ati does not provide one, but mesa does. If
	# a (libtool-based) libfoo is built with libGL.la present a
	# reference to it is put into libfoo.la, and compiling
	# (libtool-based) things that link too libfoo.la will complain if
	# libGL.la disappears. So if we do not make up a libGL.la
	# switching between mesa and ati becomes painful.
	local revision=$(printf '%d%02d%02d' $(get_version_components))
	sed -e "s:\${libmajor}:${libmajor}:g" \
		-e "s:\${libminor}:${libminor}:g" \
		-e "s:\${libdir}:$(get_libdir):g" \
		-e "s:\${revision}:${revision}:g" \
		"${FILESDIR}"/libGL.la.in > "${D}"/${ATI_ROOT}/lib/libGL.la \
		|| die "sed failed to make libGL.la"

	local envname="${T}"/04ati-dri-path
	if [[ -n ${ABI} ]]; then
		envname="${envname}-${ABI}"
	fi
	echo "LIBGL_DRIVERS_PATH=/usr/$(get_libdir)/dri" > "${envname}"
	doenvd "${envname}" || die
}

pkg_postinst() {
	elog "To switch to ATI OpenGL, run \"eselect opengl set ati\""
	elog "To change your xorg.conf you can use the bundled \"aticonfig\""
	elog
	elog "If you experience unexplained segmentation faults and kernel crashes"
	elog "with this driver and multi-threaded applications such as wine,"
	elog "set UseFastTLS in xorg.conf to either 0 or 1, but not 2."
	elog
	elog "You will have to source /etc/profile (or logout and back in) for dri"
	elog "to work, unless you previously had ati-drivers installed."

	# Workaroud screen corruption
	ewarn "If you experience screen corruption with this driver, try putting"
	ewarn '         Option "XAANoOffscreenPixmaps" "true"'
	ewarn "in the Device Section of /etc/X11/xorg.conf."

	use modules && linux-mod_pkg_postinst
	"${ROOT}"/usr/bin/eselect opengl set --use-old ati
}

pkg_preinst() {
	use modules && linux-mod_pkg_preinst
}

pkg_prerm() {
	"${ROOT}"/usr/bin/eselect opengl set --use-old xorg-x11
}

pkg_postrm() {
	use modules && linux-mod_pkg_postrm
	"${ROOT}"/usr/bin/eselect opengl set --use-old xorg-x11
}