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# Copyright 1999-2020 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2

EAPI=7

MY_PN="OpenSceneGraph"
MY_P=${MY_PN}-${PV}
WX_GTK_VER="3.0"
inherit cmake flag-o-matic wxwidgets

DESCRIPTION="Open source high performance 3D graphics toolkit"
HOMEPAGE="http://www.openscenegraph.org/"
SRC_URI="https://github.com/${PN}/${MY_PN}/archive/${MY_P}.tar.gz"

LICENSE="wxWinLL-3 LGPL-2.1"
SLOT="0/160" # NOTE: CHECK WHEN BUMPING! Subslot is SOVERSION
KEYWORDS="~amd64 ~hppa ~ia64 ~ppc ~ppc64 ~x86"
IUSE="asio curl dicom debug doc egl examples ffmpeg fltk fox gdal gif glut
gstreamer jpeg las libav lua openexr openinventor osgapps pdf png sdl sdl2
svg tiff truetype vnc wxwidgets xrandr +zlib"

REQUIRED_USE="sdl2? ( sdl ) dicom? ( zlib ) openexr? ( zlib )"

# TODO: COLLADA, FBX, GTA, NVTT, OpenVRML, Performer
BDEPEND="
	app-arch/unzip
	virtual/pkgconfig
	doc? ( app-doc/doxygen )
"
RDEPEND="
	media-libs/mesa[egl?]
	virtual/glu
	virtual/opengl
	x11-libs/libSM
	x11-libs/libXext
	asio? ( dev-cpp/asio )
	curl? ( net-misc/curl )
	examples? (
		fltk? ( x11-libs/fltk:1[opengl] )
		fox? ( x11-libs/fox:1.6[opengl] )
		glut? ( media-libs/freeglut )
		sdl2? ( media-libs/libsdl2 )
		wxwidgets? ( x11-libs/wxGTK:${WX_GTK_VER}[opengl,X] )
	)
	ffmpeg? (
		libav? ( media-video/libav:0= )
		!libav? ( media-video/ffmpeg:0= )
	)
	gdal? ( sci-libs/gdal:= )
	gif? ( media-libs/giflib:= )
	gstreamer? (
		media-libs/gstreamer:1.0
		media-libs/gst-plugins-base:1.0
	)
	jpeg? ( virtual/jpeg:0 )
	las? ( >=sci-geosciences/liblas-1.8.0 )
	lua? ( >=dev-lang/lua-5.1.5:* )
	openexr? (
		media-libs/ilmbase:=
		media-libs/openexr:=
	)
	openinventor? ( media-libs/coin )
	pdf? ( app-text/poppler[cairo] )
	png? ( media-libs/libpng:0= )
	sdl? ( media-libs/libsdl )
	svg? (
		gnome-base/librsvg
		x11-libs/cairo
	)
	tiff? ( media-libs/tiff:0 )
	truetype? ( media-libs/freetype:2 )
	vnc? ( net-libs/libvncserver )
	xrandr? ( x11-libs/libXrandr )
	zlib? ( sys-libs/zlib )
"
DEPEND="${RDEPEND}
	x11-base/xorg-proto
"

S="${WORKDIR}/${MY_PN}-${MY_P}"

PATCHES=(
	"${FILESDIR}"/${PN}-3.6.3-cmake.patch
	"${FILESDIR}"/${PN}-3.6.3-docdir.patch
)

src_configure() {
	if use examples && use wxwidgets; then
		need-wxwidgets unicode
	fi

	# Needed by FFmpeg
	append-cppflags -D__STDC_CONSTANT_MACROS

	local libdir=$(get_libdir)
	local mycmakeargs=(
		-DDYNAMIC_OPENSCENEGRAPH=ON
		-DLIB_POSTFIX=${libdir/lib}
		-DOPENGL_PROFILE=GL2 #GL1 GL2 GL3 GLES1 GLES3 GLES3
		-DOSG_ENVVAR_SUPPORTED=ON
		-DOSG_PROVIDE_READFILE=ON
		-DOSG_USE_LOCAL_LUA_SOURCE=OFF
		$(cmake_use_find_package asio Asio)
		$(cmake_use_find_package curl CURL)
		-DBUILD_DOCUMENTATION=$(usex doc)
		$(cmake_use_find_package dicom DCMTK)
		$(cmake_use_find_package egl EGL)
		-DBUILD_OSG_EXAMPLES=$(usex examples)
		$(cmake_use_find_package ffmpeg FFmpeg)
		$(cmake_use_find_package gdal GDAL)
		$(cmake_use_find_package gif GIFLIB)
		$(cmake_use_find_package gstreamer GLIB)
		$(cmake_use_find_package gstreamer GStreamer)
		-DCMAKE_DISABLE_FIND_PACKAGE_GtkGl=ON
		$(cmake_use_find_package jpeg JPEG)
		-DCMAKE_DISABLE_FIND_PACKAGE_Jasper=ON
		$(cmake_use_find_package las LIBLAS)
		$(cmake_use_find_package lua Lua51)
		-DCMAKE_DISABLE_FIND_PACKAGE_Lua52=ON
		-DCMAKE_DISABLE_FIND_PACKAGE_OpenCascade=ON
		$(cmake_use_find_package openexr OpenEXR)
		$(cmake_use_find_package openinventor Inventor)
		-DBUILD_OSG_APPLICATIONS=$(usex osgapps)
		$(cmake_use_find_package pdf Poppler-glib)
		$(cmake_use_find_package png PNG)
		$(cmake_use_find_package sdl SDL)
		$(cmake_use_find_package sdl2 SDL2)
		$(cmake_use_find_package svg RSVG)
		$(cmake_use_find_package tiff TIFF)
		$(cmake_use_find_package truetype Freetype)
		$(cmake_use_find_package vnc LibVNCServer)
		-DOSGVIEWER_USE_XRANDR=$(usex xrandr)
		$(cmake_use_find_package zlib ZLIB)
	)
	if use examples; then
		mycmakeargs+=(
			$(cmake_use_find_package fltk FLTK)
			$(cmake_use_find_package fox FOX)
			$(cmake_use_find_package glut GLUT)
			$(cmake_use_find_package wxwidgets wxWidgets)
		)
	fi

	cmake_src_configure
}

src_compile() {
	cmake_src_compile
	use doc && cmake_src_compile doc_openscenegraph doc_openthreads
}