Switch from glslang to shaderc

scripts.d/50-vulkan/50-shaderc.sh

@@ -0,0 +1,50 @@
+#!/bin/bash
+
+SHADERC_REPO="https://github.com/google/shaderc.git"
+SHADERC_COMMIT="657c5ed2ba1714c0430895a274a94d6f2aeeab85"
+
+ffbuild_enabled() {
+    [[ $ADDINS_STR == *4.4* ]] && return -1
+    return 0
+}
+
+ffbuild_dockerbuild() {
+    git-mini-clone "$SHADERC_REPO" "$SHADERC_COMMIT" shaderc
+    cd shaderc
+
+    ./utils/git-sync-deps
+
+    mkdir build && cd build
+
+    cmake -GNinja -DCMAKE_TOOLCHAIN_FILE="$FFBUILD_CMAKE_TOOLCHAIN" -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX="$FFBUILD_PREFIX" \
+        -DSHADERC_SKIP_TESTS=ON -DSHADERC_SKIP_EXAMPLES=ON -DSHADERC_SKIP_COPYRIGHT_CHECK=ON \
+        -DENABLE_EXCEPTIONS=ON -DENABLE_CTEST=OFF -DENABLE_GLSLANG_BINARIES=OFF -DSPIRV_SKIP_EXECUTABLES=ON \
+        -DSPIRV_TOOLS_BUILD_STATIC=ON -DBUILD_SHARED_LIBS=OFF ..
+    ninja -j$(nproc)
+    ninja install
+
+    # for some reason, this does not get installed...
+    cp libshaderc_util/libshaderc_util.a "$FFBUILD_PREFIX"/lib
+
+    echo "Libs: -lstdc++" >> "$FFBUILD_PREFIX"/lib/pkgconfig/shaderc_combined.pc
+    echo "Libs: -lstdc++" >> "$FFBUILD_PREFIX"/lib/pkgconfig/shaderc_static.pc
+
+    cp "$FFBUILD_PREFIX"/lib/pkgconfig/{shaderc_combined,shaderc}.pc
+
+    if [[ $TARGET == win* ]]; then
+        rm -r "$FFBUILD_PREFIX"/bin "$FFBUILD_PREFIX"/lib/*.dll.a
+    elif [[ $TARGET == linux* ]]; then
+        rm -r "$FFBUILD_PREFIX"/bin "$FFBUILD_PREFIX"/lib/*.so*
+    else
+        echo "Unknown target"
+        return -1
+    fi
+}
+
+ffbuild_configure() {
+    echo --enable-libshaderc
+}
+
+ffbuild_unconfigure() {
+    echo --disable-libshaderc
+}