# Copyright 1999-2008 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: $

inherit eutils

DESCRIPTION=""
HOMEPAGE="http://developer.amd.com/stream"
BASE_URI="mirror://sourceforge/brookplus"
SRC_URI="amd64? ( ${BASE_URI}/Brook-${PV}.x86_64.tar.gz ) 
         x86? ( ${BASE_URI}/Brook-${PV}.x86_32.tar.gz )"

LICENSE="GPL,BSD"
SLOT="0"
KEYWORDS="~amd64 ~x86"
IUSE="+samples +doc vim-syntax"

DEPEND="
	=dev-util/atistream-cal-1.4*
	"
RDEPEND=""

BROOKROOT="/usr/local/Brook-1.4"
CALROOT="/usr/local/atical"

src_unpack() {
	tar xf ${DISTDIR}/${A} -C ${WORKDIR}
	cd ${WORKDIR}

	if use x86; then
		BIT_VERSION="i386"
	else
		BIT_VERSION="x86_64"
	fi
		
	einfo "Unpacking AMD-Brook"
	dd if=${WORKDIR}/Brook-${PV}.${BIT_VERSION}.run of=${WORKDIR}/atistream-brook.tar.gz bs=16384 skip=1 || die "unpacking failed"

	einfo "Extracting tar files"
	tar xzf atistream-brook.tar.gz || die "extracting failed"
	
	einfo "Converting rpm to tar"
	rpm2tar Brook-1.4-1.${BIT_VERSION}.rpm || die "converting failed"

	einfo "Extracting files"
	tar xf ${WORKDIR}/Brook-1.4-1.${BIT_VERSION}.tar || die "extracting failed"
	
	cd "${WORKDIR}/${BROOKROOT}"
	epatch "${FILESDIR}/gcc-4.3-atibrook-platform.patch" || die "epatch failed"

	if use samples; then
		cd "${WORKDIR}/${BROOKROOT}/samples"
		epatch "${FILESDIR}/gcc-4.3-atibrook-samples.patch" || die "epatch failed"
	fi
}

src_compile() {
	cd "${WORKDIR}/${BROOKROOT}/platform"
	emake -j1 RELEASE="true" CALROOT="${CALROOT}" || die "make platform failed"

	#if use samples; then
	#	cd "${WORKDIR}/${BROOKROOT}/samples"
	#	emake || die "make samples failed"
	#fi
}

src_install() {
	dodir "${BROOKROOT}"
	
	if use doc; then
		dodoc "${WORKDIR}/${BROOKROOT}/Brook+_Documentation"/* \
				|| die "Doc copy failed"
		dodoc "${WORKDIR}/${BROOKROOT}/Brook+_Release_Notes.pdf" \
				|| die "Doc copy failed"
	fi

	if use vim-syntax; then
		insinto /usr/share/vim/vimfiles/syntax
		doins "${WORKDIR}/${BROOKROOT}/utils/vim_syntaxfile/brook.vim" \
				|| die "Vim syntax file placement failed"
	fi

	insinto "/usr/include/brook/"
	doins "${WORKDIR}/${BROOKROOT}/sdk/include/brook"/*.h* \
				|| die "Headers copy failed"
	insinto "/usr/include/brook/CPU/"
	doins "${WORKDIR}/${BROOKROOT}/sdk/include/brook/CPU"/* \
				|| die "Headers copy failed"

	dobin "${WORKDIR}/${BROOKROOT}/sdk/bin"/* \
				|| die "Bin creation filed"
	dolib.so "${WORKDIR}/${BROOKROOT}/sdk/lib"/* \
				|| die "Lib creation filed"
	
	if use samples; then
		cp -r "${WORKDIR}/${BROOKROOT}/samples" "${D}/${BROOKROOT}" \
				|| die "Samples copy failed"
	fi
}

pkg_postinst() {
	ewarn ""
	ewarn "In order to be able to use Brook+, you may need to set:"
	ewarn "    export CALROOT=${CALROOT}"

	einfo "Instead, you don't need to set these variables any more:"
	einfo "    export LD_LIBRARY_PATH=\"/usr/local/amdbrook/sdk/lib:\$LD_LIBRARY_PATH\""
	einfo "and"
	einfo "    export PATH=\"/usr/local/amdbrook/sdk/bin:\$PATH\""
	einfo ""
}