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# Copyright 1999-2019 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2

EAPI=6

inherit gnome2 multilib

DESCRIPTION="A library for using 3D graphics hardware to draw pretty pictures"
HOMEPAGE="https://www.cogl3d.org/"

LICENSE="MIT BSD"
SLOT="1.0/20" # subslot = .so version

# doc and profile disable for now due to bugs #484750 and #483332
IUSE="debug examples gles2 gstreamer +introspection +kms +opengl +pango wayland" # doc profile
REQUIRED_USE="
	wayland? ( gles2 )
	|| ( gles2 opengl )
"
KEYWORDS="~alpha ~amd64 ~arm ~arm64 ~ia64 ~mips ~ppc ~ppc64 ~sparc ~x86"

COMMON_DEPEND="
	>=dev-libs/glib-2.32:2
	x11-libs/cairo:=
	>=x11-libs/gdk-pixbuf-2:2
	x11-libs/libX11
	>=x11-libs/libXcomposite-0.4
	x11-libs/libXdamage
	x11-libs/libXext
	>=x11-libs/libXfixes-3
	>=x11-libs/libXrandr-1.2
	virtual/opengl
	gles2? ( media-libs/mesa[gles2] )
	gstreamer? (
		media-libs/gstreamer:1.0
		media-libs/gst-plugins-base:1.0 )
	introspection? ( >=dev-libs/gobject-introspection-1.34.2:= )
	kms? (
		media-libs/mesa[egl,gbm]
		x11-libs/libdrm:= )
	pango? ( >=x11-libs/pango-1.20.0[introspection?] )
	wayland? (
		>=dev-libs/wayland-1.1.90
		media-libs/mesa[egl,wayland] )
"
# before clutter-1.7, cogl was part of clutter
RDEPEND="${COMMON_DEPEND}
	!<media-libs/clutter-1.7
"
DEPEND="${COMMON_DEPEND}
	dev-util/glib-utils
	>=dev-util/gtk-doc-am-1.13
	>=sys-devel/gettext-0.19
	virtual/pkgconfig
"

# Need classic mesa swrast for tests, llvmpipe causes a test failure
# For some reason GL3 conformance test all fails again...
RESTRICT="test"

src_prepare() {
	# Do not build examples
	sed -e "s/^\(SUBDIRS +=.*\)examples\(.*\)$/\1\2/" \
		-i Makefile.am Makefile.in || die

	#if ! use test ; then
	# For some reason the configure switch will not completely disable
	# tests being built
	sed -e "s/^\(SUBDIRS =.*\)test-fixtures\(.*\)$/\1\2/" \
		-e "s/^\(SUBDIRS +=.*\)tests\(.*\)$/\1\2/" \
		-e "s/^\(.*am__append.* \)tests\(.*\)$/\1\2/" \
		-i Makefile.am Makefile.in || die
	#fi

	gnome2_src_prepare
}

src_configure() {
	# TODO: think about quartz, sdl
	# Prefer gl over gles2 if both are selected
	# Profiling needs uprof, which is not available in portage yet, bug #484750
	# FIXME: Doesn't provide prebuilt docs, but they can neither be rebuilt, bug #483332
	gnome2_src_configure \
		--disable-examples-install \
		--disable-maintainer-flags \
		--enable-cairo             \
		--enable-deprecated        \
		--enable-gdk-pixbuf        \
		--enable-glib              \
		$(use_enable debug)        \
		$(use_enable opengl glx)   \
		$(use_enable opengl gl)    \
		$(use_enable gles2)        \
		$(use_enable gles2 cogl-gles2) \
		$(use_enable gles2 xlib-egl-platform) \
		$(usex gles2 --with-default-driver=$(usex opengl gl gles2)) \
		$(use_enable gstreamer cogl-gst)    \
		$(use_enable introspection) \
		$(use_enable kms kms-egl-platform) \
		$(use_enable pango cogl-pango) \
		--disable-unit-tests \
		$(use_enable wayland wayland-egl-platform) \
		$(use_enable wayland wayland-egl-server) \
		--disable-profile
#		$(use_enable profile)
}

src_install() {
	if use examples; then
		insinto /usr/share/doc/${PF}/examples
		doins examples/{*.c,*.jpg}
	fi

	gnome2_src_install

	# Remove silly examples-data directory
	rm -rv "${ED}/usr/share/cogl/examples-data/" || die
}