# Description: Mesa 3D Graphics Library
# URL: https://www.mesa3d.org/
# Maintainer: CRUX compat-32 Team, compat-32-ports at crux dot nu
# Depends on: elfutils-32 expat-32 libdrm-32 libglvnd-32 libvdpau-32 llvm-32 mesa xorg-libxdamage-32 xorg-libxrandr-32 xorg-libxshmfence-32 xorg-libxvmc-32 xorg-libxxf86vm-32 zstd-32
# Optional: glslang wayland-32 wayland-protocols

name=mesa-32
version=21.2.2
release=1
source=(https://archive.mesa3d.org/mesa-$version.tar.xz
	x86-linux-gnu
	gallium-llvm13.patch)

build() {
	prt-get isinst wayland-32 wayland-protocols && PKGMK_MESA_PLATFORMS+=',wayland'
	prt-get isinst glslang && PKGMK_MESA_PLATFORMS+=' -D vulkan-overlay-layer=true -D vulkan-device-select-layer=true'

	patch -d mesa-$version -p1 -i $SRC/gallium-llvm13.patch

	meson setup mesa-$version build $PKGMK_MESA3D \
		--cross-file=$SRC/x86-linux-gnu \
		--prefix=/usr \
		--libdir=/usr/lib32 \
		--sysconfdir=/etc \
		--buildtype=plain \
		--wrap-mode nodownload \
		-D b_lto=true \
		-D b_pie=true \
		-D llvm=enabled \
		-D shared-llvm=enabled \
		-D gbm=enabled \
		-D gles1=disabled \
		-D gles2=enabled \
		-D osmesa=true \
		-D platforms=x11$PKGMK_MESA_PLATFORMS \
		-D gallium-xa=enabled \
		-D gallium-vdpau=enabled \
		-D gallium-drivers=r300,r600,svga,swrast,radeonsi,nouveau,iris,virgl \
		-D vulkan-drivers=amd,intel \
		-D glvnd=true \
		-D dri3=enabled \
		-D egl=enabled

	meson compile -C build -j ${JOBS:-1}
	DESTDIR=$PKG meson install -C build

	# indirect rendering symlink
	ln -s libGLX_mesa.so.0 $PKG/usr/lib32/libGLX_indirect.so.0

	rm -r $PKG/usr/{include,share/{drirc.d,glvnd}}
}