# Copyright 1999-2003 Gentoo Technologies, Inc.
# Distributed under the terms of the GNU General Public License v2
# Based on the 0.59.1 ebuild by Ben Lutgens <blutgens@gentoo.org>
# $Header: /home/cvsroot/gentoo-x86/app-emulation/xmame/xmame-0.69.1.ebuild,v 1.1 2003/06/05 09:06:59 aliz Exp $

DESCRIPTION="Multiple Arcade Machine Emulator for X11"
SRC_URI="http://x.mame.net/download/${P}.tar.bz2"
HOMEPAGE="http://x.mame.net/"

SLOT="0"
LICENSE="xmame"
KEYWORDS="x86 ~ppc"
IUSE="sdl dga xv alsa esd opengl X 3dfx svga ggi arts"

DEPEND="sdl? ( >=media-libs/libsdl-1.2.0 )
		sys-libs/zlib
		alsa? ( media-libs/alsa-lib )
		xv? ( >=x11-base/xfree-4.1.0 )
		dga? ( >=x11-base/xfree-4.1.0 )
		esd? ( >=media-sound/esound-0.2.29 )
		svga? ( media-libs/svgalib )
		ggi? ( media-libs/libggi )
		arts? ( kde-base/arts )
		x86? ( dev-lang/nasm )
"

# There is a better way to handle this? Compiling ALL version is worse...
UI_PRIORITY="X sdl opengl svga ggi" 

mysed() {
	sed "$@" <makefile.unix >makefile.unix.tmp
	# This check is for future updates
	cmp -s makefile.unix makefile.unix.tmp
	if [ $? = 0 ]; then
		eerror "sed expression \"$@\" made no changes!"
		eerror "The format in makefile.unix has probably changed so the"
		eerror "ebuild needs to be updated!"
		exit 10
	fi
	mv -f makefile.unix.tmp makefile.unix
}

src_unpack() {
	unpack ${A}
	cd ${S}
	
	mysed "s:^CFLAGS:\# CFLAGS:g"
	mysed "s:PREFIX = /usr/local:PREFIX = /usr:g"

	if [ ${ARCH} = "x86" ]
	then
		# Enable joystick support
		mysed "s/\# JOY_I386/JOY_I386/g"
		# Enable M68000 and MIPS3 asm cores
		mysed "s/\# X86_ASM_68000 = 1/X86_ASM_68000 = 1/g"
		mysed "s/\# X86_MIPS3_DRC/X86_MIPS3_DRC/g"
	fi

	if [ ${ARCH} = "ppc" ]
	then
		mysed "s:MY_CPU = i386:\#MY_CPU = i386:g"
		mysed "s:\# MY_CPU = risc$:MY_CPU = risc:"
	fi

				mysed "s/\# SOUND_WAVEOUT/SOUND_WAVEOUT/g"
	use esd  && mysed "s/\# SOUND_ESOUND/SOUND_ESOUND/g"
	use alsa && mysed "s/\# SOUND_ALSA/SOUND_ALSA/g"
	use arts && mysed "s/\# SOUND_ARTS/SOUND_ARTS/g"
	use sdl  && mysed "s/\# SOUND_SDL/SOUND_SDL/g"

	for display in $XMAME_UI $UI_PRIORITY; do
		use $display || continue

		einfo "Building the $display-version of xmame..."
		einfo "If you want to build another version instead, run emerge this way:"
		einfo "# XMAME_UI=xxx emerge xmame"
		einfo "where 'xxx' can be one of: X sdl svga opengl ggi"
		sleep 3s

		case $display in
			X)
				use 3dfx && mysed "s/DISPLAY_METHOD = x11/DISPLAY_METHOD = xfx/g"
				use 3dfx && mysed "s/\# TDFX_DGA_WORKAROUND/TDFX_DGA_WORKAROUND/g"
				use dga  && mysed "s/\# X11_DGA = 1/X11_DGA = 1/g"
				use xv   || mysed "s/^X11_XV = 1/X11_XV = 0/g"
				;;
			svga)
				use 3dfx || mysed "s/DISPLAY_METHOD = x11/DISPLAY_METHOD = svgalib/g"
				use 3dfx && mysed "s/DISPLAY_METHOD = x11/DISPLAY_METHOD = svgafx/g"
				;;
			sdl)
				mysed "s/DISPLAY_METHOD = x11/DISPLAY_METHOD = SDL/g"
				use dga && mysed "s/\# X11_DGA = 1/X11_DGA = 1/g"	# FIXME: Needed for SDL?
				;;
			opengl)
				mysed "s/DISPLAY_METHOD = x11/DISPLAY_METHOD = xgl/g"
				sed "s:<GL/glx.h>:\"/usr/lib/opengl/xfree/include/glx.h\":g" \
				< src/unix/video-drivers/gltool.h > src/unix/video-drivers/gltool.h.tmp
				mv -f src/unix/video-drivers/gltool.h.tmp src/unix/video-drivers/gltool.h
				;;
			ggi)
				mysed "s/DISPLAY_METHOD = x11/DISPLAY_METHOD = ggi/g"
				;;
			*)
				eerror "Unknown variable in \$UI_PRIORITY: $display"
				exit 10
				;;
		esac
		
		break	# Only build one UI!
	done
}

src_compile() {
	local MYFLAGS
	local GCCMAJ

	MYFLAGS=""
	GCCMAJ=`gcc -v 2>&1 | grep "gcc version" | awk '{print $3}' | cut -f1 -d\.`

	if [ ${ARCH} = "ppc" ]; then
		# add Makefile suggested flags for ppc
		MYFLAGS="${CFLAGS} -funroll-loops \
		-fstrength-reduce -fomit-frame-pointer -ffast-math -fsigned-char"
	fi

	if [ ${ARCH} = "x86" ]; then
		# add Makefile suggested flags for x86
		MYFLAGS="${CFLAGS} -O3 -Wall -Wno-unused -funroll-loops \
		-fstrength-reduce -fomit-frame-pointer -ffast-math"
		if [ ${GCCMAJ} = "2" ]; then
			MYFLAGS="${MYFLAGS} -malign-functions=2 -malign-jumps=2 -malign-loops=2"
		else
			MYFLAGS="${MYFLAGS} -falign-functions=2 -falign-jumps=2 -falign-loops=2"
		fi
	fi

	make CFLAGS="${MYFLAGS}" || die
}

src_install() {
	make \
		PREFIX=${D}/usr \
		MANDIR=${D}/usr/share/man/man6 \
		install

	dodoc doc/{changes.*,dga2.txt,gamelist.mame,readme.mame,xmamerc.dist}
	dodoc doc/{xmame-doc.ps,xmame-doc.txt}
	dodoc todo README

	dohtml -r doc

	mv xmame.obj obj.xmame
	ln -s xmame.* xmame
	mv xmame ${D}/usr/bin/

	mkdir -p ${D}/usr/share/xmame
	mv src/unix/cab ctrlr ${D}/usr/share/xmame/
}