Formulae - Google's ShaderC - Tools GLSL shader code into SPIR-V

apothecary/formulas/shaderc.sh

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+#! /bin/bash
+#
+# ShaderC
+# tgfrerer
+# compiling GLSL shader code into SPIR-V
+# 
+# compile this with ./apothecary -a 64 update shaderc
+# compile for windows visual studio: ./apothecary -a 64 -t vs update shaderc
+#
+# uses a CMake build system
+
+FORMULA_TYPES=( "vs" "linux64")
+
+# define the shaderc version by sha
+# Known good version is from: https://github.com/google/shaderc/blob/known-good/known_good.json
+VER=ff84893dd52d28f0b1737d2635733d952013bd9c
+#v2024.3
+
+# tools for git use
+GIT_URL=https://github.com/google/shaderc
+GIT_TAG=$VER
+
+# download the source code and unpack it into LIB_NAME
+function download() {
+	curl -Lk $GIT_URL/archive/$GIT_TAG.tar.gz -o shaderc-$GIT_TAG.tar.gz
+	tar -xf shaderc-$GIT_TAG.tar.gz
+	mv shaderc-$GIT_TAG shaderc
+	rm shaderc*.tar.gz
+}
+
+# prepare the build environment, executed inside the lib src dir
+function prepare() {
+	pushd third_party
+
+	# load shaderc dependencies at known good revisions
+	# we know working configurations from this file:
+	# https://github.com/google/shaderc/blob/known-good/known_good.json
+
+	if [[ ! -d "glslang" ]]; then
+		git clone https://github.com/KhronosGroup/glslang.git glslang
+		pushd glslang
+		git checkout 46ef757e048e760b46601e6e77ae0cb72c97bd2f
+		popd
+	fi
+
+	if [[ ! -d "spirv-tools" ]]; then
+    	echo "Cloning SPIRV-Tools repository..."
+		git clone https://github.com/KhronosGroup/SPIRV-Tools.git spirv-tools
+		pushd spirv-tools
+		git checkout 01c8438ee4ac52c248119b7e03e0b021f853b51a
+		popd
+	fi
+
+	if [[ ! -d "spirv-tools/external/spirv-headers" ]]; then
+		git clone https://github.com/KhronosGroup/SPIRV-Headers.git spirv-tools/external/spirv-headers # rev: db5cf6176137003ca4c25df96f7c0649998c3499
+		pushd spirv-tools/external/spirv-headers
+		git checkout 2a9b6f951c7d6b04b6c21fe1bf3f475b68b84801
+		popd
+	fi
+
+	popd
+}
+
+# executed inside the lib src dir
+function build() {
+	rm -f CMakeCache.txt
+	LIBS_ROOT=$(realpath $LIBS_DIR)
+
+	if [ "$TYPE" == "vs" ] ; then
+
+		 echo "building $TYPE | $ARCH | $VS_VER | vs: $VS_VER_GEN"
+        echo "--------------------"
+        GENERATOR_NAME="Visual Studio ${VS_VER_GEN}"     
+
+        mkdir -p "build_${TYPE}_${PLATFORM}"
+        cd "build_${TYPE}_${PLATFORM}"
+        find ./ -name "*.o" -type f -delete
+        rm -f CMakeCache.txt || true
+        DEFS="
+            -DCMAKE_C_STANDARD=${C_STANDARD} \
+            -DCMAKE_CXX_STANDARD=${CPP_STANDARD} \
+            -DCMAKE_CXX_STANDARD_REQUIRED=ON \
+            -DCMAKE_CXX_EXTENSIONS=OFF \
+            -DBUILD_SHARED_LIBS=ON \
+            -Dgtest_disable_pthreads=ON -DSHADERC_SKIP_TESTS=ON -DSHADERC_ENABLE_SHARED_CRT=ON"
+
+        cmake .. ${DEFS} \
+            -A "${PLATFORM}" \
+            ${CMAKE_WIN_SDK} \
+            -G "${GENERATOR_NAME}" \
+            -DCMAKE_BUILD_TYPE=Release \
+            -DCMAKE_INSTALL_PREFIX=Release \
+            -DCMAKE_INSTALL_LIBDIR="lib" \
+            -DCMAKE_CXX_FLAGS="-DUSE_PTHREADS=1 ${VS_C_FLAGS} ${FLAGS_RELEASE}" \
+            -DCMAKE_C_FLAGS="-DUSE_PTHREADS=1 ${VS_C_FLAGS} ${FLAGS_RELEASE} " \
+            -DCMAKE_CXX_FLAGS_RELEASE="-DUSE_PTHREADS=1 ${VS_C_FLAGS} ${FLAGS_RELEASE} ${EXCEPTION_FLAGS}" \
+            -DCMAKE_C_FLAGS_RELEASE="-DUSE_PTHREADS=1 ${VS_C_FLAGS} ${FLAGS_RELEASE} ${EXCEPTION_FLAGS}" \
+            -DCMAKE_PREFIX_PATH="${LIBS_ROOT}"
+        cmake --build . --config Release		
+	else
+        if [ $CROSSCOMPILING -eq 1 ]; then
+            source ../../${TYPE}_configure.sh
+            EXTRA_CONFIG=" "
+        else
+            EXTRA_CONFIG=" "
+        fi
+		# *nix build system
+
+		mkdir -p build 
+		cd build
+
+		cmake .. -Dgtest_disable_pthreads=ON -DSHADERC_SKIP_TESTS=ON -DSHADERC_ENABLE_SHARED_CRT=ON
+		#cmake --build . --config Debug -- -j$PARALLEL_MAKE
+		cmake --build . --config Release -- -j$PARALLEL_MAKE
+
+	fi
+}
+
+# executed inside the lib src dir, first arg $1 is the dest libs dir root
+function copy() {
+	# prepare headers directory if needed
+	mkdir -p $1/include/shaderc
+
+	# prepare libs directory if needed
+	mkdir -p $1/lib/$TYPE
+
+	if [ "$TYPE" == "vs" ] ; then
+		cp -Rv libshaderc/include/* $1/include
+		cp -v "build_${TYPE}_${PLATFORM}/lib/Release/libshaderc_combined.lib" $1/lib/$TYPE/$PLATFORM/shaderc.lib	
+
+	else
+		pwd
+		# Standard *nix style copy.
+		# copy headers
+		cp -Rv libshaderc/include/* $1/include
+		# copy lib
+		cp -v "build_${TYPE}_${PLATFORM}/lib/Release/libshaderc_combined.a" $1/lib/$TYPE/$PLATFORM/shaderc.a
+	fi
+
+	# copy license file
+	rm -rf $1/license # remove any older files if exists
+	mkdir -p $1/license
+	cp -v LICENSE $1/license/
+}
+
+# executed inside the lib src dir
+function clean() {
+	if [ "$TYPE" == "vs" ] ; then
+		rm -f *.lib
+	elif [ "$TYPE" == "linux64" ]; then
+		#statements
+
+		cmake --clean .
+	else
+		make clean
+	fi
+}