# Maintainer: loathingkernel <loathingkernel _a_ gmail _d_ com>

pkgname=proton
_srctag=8.0-2c
_commit=
pkgver=8.0.2.3  # pkgver=${_srctag//-/.}
_geckover=2.47.3
_monover=7.4.1
pkgrel=7
epoch=1
pkgdesc="Compatibility tool for Steam Play based on Wine and additional components"
url="https://github.com/ValveSoftware/Proton"
arch=(x86_64 x86_64_v3)
options=(!staticlibs !lto emptydirs)
license=('custom')

depends=(
  attr             lib32-attr
  fontconfig       lib32-fontconfig
  libxcursor       lib32-libxcursor
  libxrandr        lib32-libxrandr
  libxi            lib32-libxi
  gettext          lib32-gettext
  freetype2        lib32-freetype2
  gcc-libs         lib32-gcc-libs
  libpcap          lib32-libpcap
  lzo              lib32-lzo
  libxkbcommon     lib32-libxkbcommon
  libvpx           lib32-libvpx
  'sdl2>=2.0.16'   'lib32-sdl2>=2.0.16'
  libsoup          lib32-libsoup
  libgudev         lib32-libgudev
  desktop-file-utils
  python
  steam-native-runtime
)

makedepends=(autoconf bison perl flex mingw-w64-gcc
  git wget rsync mingw-w64-tools lld nasm
  meson cmake fontforge afdko python-pefile
  glslang vulkan-headers
  clang
  giflib                lib32-giflib
  gnutls                lib32-gnutls
  libxinerama           lib32-libxinerama
  libxcomposite         lib32-libxcomposite
  libxxf86vm            lib32-libxxf86vm
  v4l-utils             lib32-v4l-utils
  alsa-lib              lib32-alsa-lib
  libxcomposite         lib32-libxcomposite
  mesa                  lib32-mesa
  mesa-libgl            lib32-mesa-libgl
  opencl-icd-loader     lib32-opencl-icd-loader
  libpulse              lib32-libpulse
  gtk3                  lib32-gtk3
  gst-plugins-base-libs lib32-gst-plugins-base-libs
  vulkan-icd-loader     lib32-vulkan-icd-loader
  'sdl2>=2.0.16'        'lib32-sdl2>=2.0.16'
  rust                  lib32-rust-libs
  libgphoto2
  opencl-headers
)

optdepends=(
  giflib                lib32-giflib
  gnutls                lib32-gnutls
  v4l-utils             lib32-v4l-utils
  libpulse              lib32-libpulse
  alsa-plugins          lib32-alsa-plugins
  alsa-lib              lib32-alsa-lib
  libxcomposite         lib32-libxcomposite
  libxinerama           lib32-libxinerama
  opencl-icd-loader     lib32-opencl-icd-loader
  gtk3                  lib32-gtk3
  gst-plugins-base-libs lib32-gst-plugins-base-libs
  vulkan-icd-loader     lib32-vulkan-icd-loader
  libgphoto2
  dosbox
)

makedepends=(${makedepends[@]} ${depends[@]})
install=${pkgname}.install
source=(
    proton::git+https://github.com/ValveSoftware/Proton.git#tag=proton-${_srctag}
    wine-valve::git+https://github.com/ValveSoftware/wine.git
    dxvk::git+https://github.com/doitsujin/dxvk.git
    openvr::git+https://github.com/ValveSoftware/openvr.git
    liberation-fonts::git+https://github.com/liberationfonts/liberation-fonts.git
    gstreamer::git+https://gitlab.freedesktop.org/gstreamer/gstreamer.git
    gst-plugins-base::git+https://gitlab.freedesktop.org/gstreamer/gst-plugins-base.git
    gst-plugins-good::git+https://gitlab.freedesktop.org/gstreamer/gst-plugins-good.git
    gst-orc::git+https://gitlab.freedesktop.org/gstreamer/orc.git
    vkd3d-proton::git+https://github.com/HansKristian-Work/vkd3d-proton.git
    OpenXR-SDK::git+https://github.com/KhronosGroup/OpenXR-SDK.git
    dxvk-nvapi::git+https://github.com/jp7677/dxvk-nvapi.git
    vkd3d-valve::git+https://github.com/ValveSoftware/vkd3d.git
    Vulkan-Headers::git+https://github.com/KhronosGroup/Vulkan-Headers.git
    SPIRV-Headers::git+https://github.com/KhronosGroup/SPIRV-Headers.git
    Vulkan-Loader::git+https://github.com/KhronosGroup/Vulkan-Loader.git
    glslang::git+https://github.com/KhronosGroup/glslang.git
    gst-libav::git+https://gitlab.freedesktop.org/gstreamer/gst-libav.git
    ffmpeg::git+https://git.ffmpeg.org/ffmpeg.git
    dav1d::git+https://code.videolan.org/videolan/dav1d.git
    gst-plugins-rs::git+https://gitlab.freedesktop.org/gstreamer/gst-plugins-rs.git
    dxil-spirv::git+https://github.com/HansKristian-Work/dxil-spirv.git
    graphene::git+https://github.com/ebassi/graphene.git
    libdisplay-info-dxvk::git+https://gitlab.freedesktop.org/JoshuaAshton/libdisplay-info.git
    https://dl.winehq.org/wine/wine-gecko/${_geckover}/wine-gecko-${_geckover}-x86{,_64}.tar.xz
    https://github.com/madewokherd/wine-mono/releases/download/wine-mono-${_monover}/wine-mono-${_monover}-x86.tar.xz
    0001-AUR-Pkgbuild-changes.patch
    0002-AUR-Do-not-update-cargo-crates.patch
    0004-AUR-Copy-DLL-dependencies-of-32bit-libvkd3d-dlls-int.patch
    fix_hwnd_changes_meaning.patch
)
# Optional patches
source+=(
)
noextract=(
    wine-gecko-${_geckover}-{x86,x86_64}.tar.xz
    wine-mono-${_monover}-x86.tar.xz
)

_make_wrappers () {
    #     _arch     prefix   gcc    ld             as     strip
    local _i686=(  "i686"   "-m32" "-melf_i386"   "--32" "elf32-i386")
    local _x86_64=("x86_64" "-m64" "-melf_x86_64" "--64" "elf64-x86-64")
    local _opts=(_i686 _x86_64)
    declare -n _opt
    for _opt in "${_opts[@]}"; do
        for l in ar ranlib nm; do
            ln -s /usr/bin/gcc-$l wrappers/${_opt[0]}-pc-linux-gnu-$l
        done
        for t in gcc g++; do
            install -Dm755 /dev/stdin wrappers/${_opt[0]}-pc-linux-gnu-$t <<EOF
#!/usr/bin/bash
$(which ccache 2> /dev/null) /usr/bin/$t ${_opt[1]} "\$@"
EOF
        done
        install -Dm755 /dev/stdin wrappers/${_opt[0]}-pc-linux-gnu-ld <<EOF
#!/usr/bin/bash
/usr/bin/ld ${_opt[2]} "\$@"
EOF
        install -Dm755 /dev/stdin wrappers/${_opt[0]}-pc-linux-gnu-as <<EOF
#!/usr/bin/bash
/usr/bin/as ${_opt[3]} "\$@"
EOF
        install -Dm755 /dev/stdin wrappers/${_opt[0]}-pc-linux-gnu-strip <<EOF
#!/usr/bin/bash
/usr/bin/strip -F ${_opt[4]} "\$@"
EOF
    done
}

prepare() {

    # Provide wrappers to compiler tools
    rm -rf wrappers && mkdir wrappers
    _make_wrappers

    [ ! -d build ] && mkdir build

    cd proton

    [ ! -d contrib ] && mkdir -p contrib
    mv "$srcdir"/wine-gecko-${_geckover}-x86{,_64}.tar.xz contrib/
    mv "$srcdir"/wine-mono-${_monover}-x86.tar.xz contrib/

    _submodules=(
        wine-valve::wine
        dxvk
        openvr
        liberation-fonts::fonts/liberation-fonts
        gstreamer
        gst-plugins-base
        gst-plugins-good
        gst-orc
        vkd3d-proton
        OpenXR-SDK
        dxvk-nvapi
        vkd3d-valve::vkd3d
        Vulkan-Headers
        SPIRV-Headers
        Vulkan-Loader
        glslang
        gst-libav
        ffmpeg
        dav1d
        gst-plugins-rs
        graphene
    )

    for submodule in "${_submodules[@]}"; do
        git submodule init "${submodule#*::}"
        git submodule set-url "${submodule#*::}" "$srcdir"/"${submodule%::*}"
        git -c protocol.file.allow=always submodule update "${submodule#*::}"
    done

    pushd dxvk
        git submodule init include/{vulkan,spirv}
        git submodule set-url include/vulkan "$srcdir/Vulkan-Headers"
        git submodule set-url include/spirv "$srcdir/SPIRV-Headers"
        git -c protocol.file.allow=always submodule update include/{vulkan,spirv}

        git submodule init subprojects/libdisplay-info
        git submodule set-url subprojects/libdisplay-info "$srcdir/libdisplay-info-dxvk"
        git -c protocol.file.allow=always submodule update subprojects/libdisplay-info
    popd

    pushd vkd3d-proton
        for submodule in subprojects/{dxil-spirv,Vulkan-Headers,SPIRV-Headers}; do
            git submodule init "${submodule}"
            git submodule set-url "${submodule}" "$srcdir"/"${submodule#*/}"
            git -c protocol.file.allow=always submodule update "${submodule}"
        done
        pushd subprojects/dxil-spirv
            git submodule init third_party/spirv-headers
            git submodule set-url third_party/spirv-headers "$srcdir"/SPIRV-Headers
            git -c protocol.file.allow=always submodule update third_party/spirv-headers
        popd
    popd

    pushd dxvk-nvapi
        git submodule init external/Vulkan-Headers
        git submodule set-url external/Vulkan-Headers "$srcdir"/Vulkan-Headers
        git -c protocol.file.allow=always submodule update external/Vulkan-Headers
    popd

    for submodule in gst-plugins-rs media-converter; do
    pushd $submodule
        export RUSTUP_TOOLCHAIN=stable
        export CARGO_HOME="${SRCDEST}"/proton-cargo
        cargo fetch --locked --target "i686-unknown-linux-gnu"
        cargo fetch --locked --target "x86_64-unknown-linux-gnu"
    popd
    done

    patch -p1 -i "$srcdir"/0001-AUR-Pkgbuild-changes.patch
    patch -p1 -i "$srcdir"/0002-AUR-Do-not-update-cargo-crates.patch
    patch -p1 -i "$srcdir"/0004-AUR-Copy-DLL-dependencies-of-32bit-libvkd3d-dlls-int.patch
    patch -p1 -i "$srcdir"/fix_hwnd_changes_meaning.patch

    # Remove repos from srcdir to save space
    for submodule in "${_submodules[@]}"; do
        rm -rf "$srcdir"/"${submodule%::*}"
    done
    rm -rf "$srcdir"/dxil-spirv
    rm -rf "$srcdir"/Vulkan-Headers
    rm -rf "$srcdir"/SPIRV-Headers
    rm -rf "$srcdir"/libdisplay-info-dxvk
}

build() {
    export PATH="$(pwd)/wrappers:$PATH"

    cd build
    ROOTLESS_CONTAINER="" \
    ../proton/configure.sh \
        --container-engine="none" \
        --proton-sdk-image="" \
        --build-name="${pkgname}"

    # By default export FLAGS used by proton and ignore makepkg
    # This overrides FLAGS from makepkg.conf, if you comment these you are on your own
    # If you want the "best" possible optimizations for your system you can use
    # `-march=native` and remove the `-mtune=core-avx2` option.
    export CFLAGS="-O2 -march=haswell -mtune=haswell -pipe -fno-semantic-interposition"
    export CXXFLAGS="-O2 -march=haswell -mtune=haswell -pipe -fno-semantic-interposition"
    export RUSTFLAGS="-C opt-level=2 -C target-cpu=haswell"
    export LDFLAGS="-Wl,-O1,--sort-common,--as-needed"

    # If using -march=native and the CPU supports AVX, launching a d3d9
    # game can cause an Unhandled exception. The cause seems to be the
    # combination of AVX instructions and tree vectorization (implied by O3),
    # all tested archictures from sandybridge to haswell are affected.
    # Since Wine 5.16 AVX is supported. Testing showed 32bit applications
    # crashing with AVX regardless, but 64bit applications worked just fine.
    # Relevant Wine issues
    # https://bugs.winehq.org/show_bug.cgi?id=45289
    # https://bugs.winehq.org/show_bug.cgi?id=43516
    # AVX is "hard" disabled for 32bit in any case.
    # AVX2 for 64bit is disabled below.
    export CFLAGS+=" -mno-avx2"
    export CXXFLAGS+=" -mno-avx2"

    export RUSTUP_TOOLCHAIN=stable
    export CARGO_HOME="${SRCDEST}"/proton-cargo
    export WINEESYNC=0
    export WINEFSYNC=0
    export DISPLAY=
    SUBJOBS=$([[ "$MAKEFLAGS" =~ -j\ *([1-9][0-9]*) ]] && echo "${BASH_REMATCH[1]}" || echo "$(nproc)") \
        make -j1 dist
}

package() {
    cd build

    # Delete the intermediate build directories to free space (mostly for my github actions)
    rm -rf dst-* obj-* src-* pfx-*

    local _compatdir="$pkgdir/usr/share/steam/compatibilitytools.d"
    mkdir -p "$_compatdir/${pkgname}"
    rsync --delete -arx dist/* "$_compatdir/${pkgname}"
    cp -f dist/version "$_compatdir/${pkgname}/dist"

    # For some unknown to me reason, 32bit vkd3d (not vkd3d-proton) always links
    # to libgcc_s_dw2-1.dll no matter what linker options I tried.
    # Copy the required dlls into the package, they will be copied later into the prefix
    # by the patched proton script. Bundling the helps to avoid making mingw-w64-gcc package
    # a runtime dependency.
    cp /usr/i686-w64-mingw32/bin/{libgcc_s_dw2-1.dll,libwinpthread-1.dll} \
        "$_compatdir/${pkgname}"/files/lib/vkd3d/
    cp /usr/x86_64-w64-mingw32/bin/{libgcc_s_seh-1.dll,libwinpthread-1.dll} \
        "$_compatdir/${pkgname}"/files/lib64/vkd3d/

    mkdir -p "$pkgdir/usr/share/licenses/${pkgname}"
    mv "$_compatdir/${pkgname}"/LICENSE{,.OFL} \
        "$pkgdir/usr/share/licenses/${pkgname}"

    cd "$_compatdir/${pkgname}/dist"
    # NOTE: Reduces size by 40 MiB, worth it
    i686-w64-mingw32-strip --strip-unneeded \
        $(find lib/wine \( -iname fakedlls -or -iname i386-windows \) -prune -false -or -iname "*.dll" -or -iname "*.exe")
    x86_64-w64-mingw32-strip --strip-unneeded \
        $(find lib64/wine \( -iname fakedlls -or -iname x86_64-windows \) -prune -false -or -iname "*.dll" -or -iname "*.exe")

    # NOTE: Reduces size by 38 MiB, worth it
    local _geckodir="share/wine/gecko/wine-gecko-${_geckover}"
    i686-w64-mingw32-strip --strip-unneeded \
        $(find "$_geckodir"-x86 -iname "*.dll" -or -iname "*.exe")
    x86_64-w64-mingw32-strip --strip-unneeded \
        $(find "$_geckodir"-x86_64 -iname "*.dll" -or -iname "*.exe")

    # NOTE: Reduces size by 0.16 MiB, not worth it
    local _monodir="share/wine/mono/wine-mono-${_monover}"
    i686-w64-mingw32-strip --strip-unneeded \
        $(find "$_monodir"/lib/mono -iname "*.dll" -or -iname "*.exe")
    i686-w64-mingw32-strip --strip-unneeded \
        "$_monodir"/lib/x86/*.dll \
        $(find "$_monodir" -iname "*x86.dll" -or -iname "*x86.exe")
    x86_64-w64-mingw32-strip --strip-unneeded \
        "$_monodir"/lib/x86_64/*.dll \
        $(find "$_monodir" -iname "*x86_64.dll" -or -iname "*x86_64.exe")
}

sha256sums=('SKIP'
            'SKIP'
            'SKIP'
            'SKIP'
            'SKIP'
            'SKIP'
            'SKIP'
            'SKIP'
            'SKIP'
            'SKIP'
            'SKIP'
            'SKIP'
            'SKIP'
            'SKIP'
            'SKIP'
            'SKIP'
            'SKIP'
            'SKIP'
            'SKIP'
            'SKIP'
            'SKIP'
            'SKIP'
            'SKIP'
            'SKIP'
            '08d318f3dd6440a8a777cf044ccab039b0d9c8809991d2180eb3c9f903135db3'
            '0beac419c20ee2e68a1227b6e3fa8d59fec0274ed5e82d0da38613184716ef75'
            '1286afc67b0a329f5e2d98d9e803ca5906a841ad5486e9b3b1fefa1124b15622'
            'SKIP'
            'SKIP'
            'SKIP'
            '20824bb565fefcad4aa978c54e0f8b9d9d17b7b52fb03fc87943150de148f06f')
# Optional patches
sha256sums+=(
)