# Copyright 1999-2023 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2

EAPI=6

JAVA_PKG_IUSE="doc source"

inherit eutils java-pkg-2 java-ant-2

DESCRIPTION="The Lightweight Java Game Library (LWJGL)"
HOMEPAGE="http://www.lwjgl.org"
SRC_URI="mirror://sourceforge/java-game-lib/Official%20Releases/LWJGL%20${PV}/${PN}-source-${PV}.zip"
LICENSE="BSD"
SLOT="2.9"
KEYWORDS="~amd64 ~x86"
IUSE="gles"

CDEPEND="dev-java/apple-java-extensions-bin:0
	dev-java/apt-mirror:0
	dev-java/asm:4
	dev-java/jinput:0
	dev-java/jutils:0
	x11-libs/libX11
	x11-libs/libXcursor
	x11-libs/libXrandr
	x11-libs/libXxf86vm
	gles? ( media-libs/mesa[egl,gles2] )"

DEPEND="${CDEPEND}
	>=virtual/jdk-1.7
	x11-proto/xproto"

RDEPEND="${CDEPEND}
	>=virtual/jre-1.7
	media-libs/openal
	virtual/opengl
	x11-apps/xrandr"

S="${WORKDIR}"

JAVA_PKG_BSFIX_NAME="build.xml build-generator.xml"
JAVA_ANT_REWRITE_CLASSPATH="true"
EANT_GENTOO_CLASSPATH="apple-java-extensions-bin,apt-mirror,asm-4,jinput,jutils"

java_prepare() {
	# We don't want a prerelease in the tree.
	epatch "${FILESDIR}/asm-4.patch"

	# This file is missing.
	# Output separate JARs for GLES.
	sed -i -r \
		-e "/build-updatesite\.xml/d" \
		-e '/<target name="-createjars_es">/,/<\/target>/s/lwjgl([^.]*\.jar)/lwjgles\1/g' \
		build.xml || die
}

compile_native() {
	# Their native build script sucks.
	cd "${S}/src/native" || die
	LIBRARY_PATH="$(java-config -g LDPATH)" gcc -shared -fPIC -std=c99 -pthread -Wall -Wl,--version-script=linux/${PN}.map -Wl,-z -Wl,defs ${CFLAGS} ${LDFLAGS} $(java-pkg_get-jni-cflags) -I{common,linux}{,/open$2} {common,linux}{,/open$2}/*.c generated/open{al,cl,$2}/*.c $3 -lm -lX11 -lXcursor -lXrandr -lXxf86vm -ljawt -ldl -o lib${PN%gl}$2$1.so || die
}

src_compile() {
	EANT_BUILD_TARGET="headers jars"
	use gles && EANT_BUILD_TARGET+=" jars_es"

	# Build the JARs and headers.
	java-pkg-2_src_compile

	# Add "64" for amd64.
	local BITS=
	use amd64 && BITS=64

	compile_native "${BITS}" "gl" ""
	use gles && compile_native "${BITS}" "gles" "-lEGL"
}

src_install() {
	java-pkg_dojar libs/${PN}*.jar
	java-pkg_doso src/native/lib${PN}*.so

	use doc && java-pkg_dojavadoc doc/javadoc
	use source && java-pkg_dosrc src/java/org
}