# Maintainer: lod <aur@cyber-anlage.de>

pkgname=lib32-amdvlk
pkgver=2019.Q3.5
pkgrel=1

_llpc_commit=4fa48ef1cf0f81eafdb56df91c2f2180d4865101
_xgl_commit=331558e93794068a786bf699d3fe23bb11bac021
_pal_commit=68b57dba33a4d922e8f1ef1b3781c2f659ffbd1c
_llvm_commit=9bc5dd4450a6361faf5c5661056a7ee494fad830
_metrohash_commit=2b6fee002db6cc92345b02aeee963ebaaf4c0e2f
_cwpack_commit=b601c88aeca7a7b08becb3d32709de383c8ee428

pkgdesc='Open-source Vulkan driver for AMD Radeon™ graphics adapters (32 Bit)'
arch=(x86_64)
url='https://github.com/GPUOpen-Drivers'
license=('MIT')
depends=('vulkan-icd-loader')
provides=('lib32-amdvlk' 'lib32-vulkan-driver')
conflicts=('lib32-vulkan-amdvlk' 'lib32-amdvlk' 'lib32-amdvlk-git')
makedepends=('cmake' 'dri2proto' 'gcc' 'lib32-gcc-libs' 'lib32-libdrm' 'lib32-libxml2' 'libxrandr' 'python' 'wayland' 'xorg-server-devel' 'ninja')

source=(AMDVLK-$pkgname-$pkgver.tar.gz::https://github.com/GPUOpen-Drivers/AMDVLK/archive/v-${pkgver}.tar.gz
        llpc-$pkgname-$pkgver.tar.gz::https://github.com/GPUOpen-Drivers/llpc/archive/${_llpc_commit}.tar.gz
        xgl-$pkgname-$pkgver.tar.gz::https://github.com/GPUOpen-Drivers/xgl/archive/${_xgl_commit}.tar.gz
        pal-$pkgname-$pkgver.tar.gz::https://github.com/GPUOpen-Drivers/pal/archive/${_pal_commit}.tar.gz
        llvm-$pkgname-$pkgver.tar.gz::https://github.com/GPUOpen-Drivers/llvm/archive/${_llvm_commit}.tar.gz
        MetroHash-$pkgname-$pkgver.tar.gz::https://github.com/GPUOpen-Drivers/MetroHash/archive/${_metrohash_commit}.tar.gz
        CWPack-$pkgname-$pkgver.tar.gz::https://github.com/GPUOpen-Drivers/CWPack/archive/${_cwpack_commit}.tar.gz)
  
sha256sums=('383d43ddcff3295bb8dc85bce2a376fbde9f2aa3535be9e4dbf67f745c40ff41'
            'abe541ef6cd4fa3ca1eaab52412caa29e2adedec0fab40894aef88d33deee584'
            '939a2cf69d840e01da8b3e69f5ffe1f852f9d2919cdbc8aa4ade7cff7ac56906'
            '7648ca7761b588b6025f8fe16fcf4216bf7e1fe53c6568377f5cca98feca9627'
            'efbde2752044ec74d522c160899491105dbc77bb8a08ff64c274d2b94a6916d1'
            'e8ecf026584dd953e39c3abba2eb04d28b28ed4577482ee70265f0d421fef398'
            '58ca397f33d62bcfecaecd89eb4ad466a6c33e1c619e5cf742822074f1f7d664')
            
prepare() {
  ln -sf ${srcdir}/AMDVLK-v-${pkgver} ${srcdir}/AMDVLK
  ln -sf ${srcdir}/xgl-${_xgl_commit} ${srcdir}/xgl
  ln -sf ${srcdir}/pal-${_pal_commit} ${srcdir}/pal
  ln -sf ${srcdir}/llpc-${_llpc_commit} ${srcdir}/llpc
  ln -sf ${srcdir}/llvm-${_llvm_commit} ${srcdir}/llvm
  ln -sf ${srcdir}/MetroHash-${_metrohash_commit} ${srcdir}/MetroHash
  ln -sf ${srcdir}/CWPack-${_metrohash_commit} ${srcdir}/CWPack
  
  #remove -Werror to build with gcc9 
  sed -i "s/-Werror//g" $srcdir/pal/shared/gpuopen/cmake/AMD.cmake
}

build() {
  # Package needs -fno-plt so we'll add it in case someone uses non-default build flags.. would it be better to add !buildflags option?
  # -mno-avx fixes crashes that occur with some configs
  export CFLAGS="$CFLAGS -fno-plt -mno-avx"
  export CXXFLAGS="$CXXFLAGS -fno-plt -mno-avx"
  export LDFLAGS="$LDFLAGS -z now" 
  
  export PKG_CONFIG_PATH='/usr/lib32/pkgconfig'
  
  cd xgl
  
  cmake -H. -Bbuilds/Release \
    -DCMAKE_C_FLAGS=-m32 \
    -DCMAKE_CXX_FLAGS=-m32 \
    -DCMAKE_BUILD_TYPE=Release \
    -DLLVM_TARGET_ARCH:STRING=i686 \
    -DLLVM_DEFAULT_TARGET_TRIPLE="i686-pc-linux-gnu" \
    -DBUILD_WAYLAND_SUPPORT=On \
    -DXGL_METROHASH_PATH=${srcdir}/MetroHash \
    -DXGL_CWPACK_PATH=${srcdir}/CWPack \
    -G Ninja
    
  ninja -C builds/Release
}

package() {
  install -m755 -d ${pkgdir}/usr/lib32
  install -m755 -d ${pkgdir}/usr/share/vulkan/icd.d
  install -m755 -d ${pkgdir}/usr/share/licenses/${pkgname}
  
  install xgl/builds/Release/icd/amdvlk32.so ${pkgdir}/usr/lib32/
  install AMDVLK/json/Redhat/amd_icd32.json ${pkgdir}/usr/share/vulkan/icd.d/
  install AMDVLK/LICENSE.txt ${pkgdir}/usr/share/licenses/${pkgname}/

  sed -i "s/\/lib/\/lib32/g" ${pkgdir}/usr/share/vulkan/icd.d/amd_icd32.json
}