MetalANGLE - Transmute OpenGL to Metal with ANGLE libraries (#442)

* MetalANGLE

* Metal ANGLE Formulae. Transmute OpenGL ES to METAL

* fetch in prepare

Author: danoli3

.gitignore

@@ -22,3 +22,4 @@ scripts/linuxarmv6l/master.zip
 scripts/linuxarmv6l/firmware-master
 scripts/status.txt
 *.log
+*.xcuserstate

apothecary/formulas/metalangle/metalangle.sh

@@ -0,0 +1,132 @@
+#!/usr/bin/env bash
+#
+# metalangle
+# https://github.com/kakashidinho/metalangle.git
+
+FORMULA_TYPES=( "osx" "ios" "watchos" "catos" "xros" "tvos" )
+FORMULA_DEPENDS=( )
+
+# define the version
+VER=1.0
+BUILD_ID=1
+DEFINES=""
+
+# tools for git use
+GIT_URL=https://github.com/kakashidinho/metalangle.git
+GIT_ORIGIN=https://github.com/google/metalangle.git
+GIT_TAG=v$VER
+
+SCHEME=MetalANGLE
+ARCHS=~/Library/Developer/Xcode/Archives
+
+# download the source code and unpack it into LIB_NAME
+function download() {
+	. "$DOWNLOADER_SCRIPT"
+    git clone ${GIT_URL}
+
+
+}
+
+# prepare the build environment, executed inside the lib src dir
+function prepare() {
+	echo
+
+	 echo "Fetch Subdependancies"
+    ./ios/xcode/fetchDependencies.sh
+
+	cp -r $FORMULA_DIR/metalangle/ ./
+
+	mkdir -p "src/id"
+	./src/commit_id.sh gen /Users/one/SOURCE/apothecary/apothecary/build/metalangle/src ./src/id/commit.h
+
+
+	# cp -r $FORMULA_DIR/metalangle/CMakeLists.txt metalangle/CMakeLists.txt
+}
+
+# executed inside the lib src dir
+function build() {
+    echo
+
+    LIBS_ROOT=$(realpath $LIBS_DIR)
+
+	DEFS="
+		    -DCMAKE_C_STANDARD=${C_STANDARD} \
+		    -DCMAKE_CXX_STANDARD=${CPP_STANDARD} \
+		    -DCMAKE_CXX_STANDARD_REQUIRED=ON \
+		    -DCMAKE_CXX_EXTENSIONS=OFF \
+		    -DCMAKE_PREFIX_PATH=${LIBS_ROOT} \
+		    -DBUILD_SHARED_LIBS=OFF"
+
+	if [[ "$TYPE" =~ ^(osx|ios|tvos|xros|catos|watchos)$ ]]; then
+		mkdir -p "build_${TYPE}_${PLATFORM}"
+		cd "build_${TYPE}_${PLATFORM}"
+		rm -f CMakeCache.txt *.a *.o
+
+		cmake .. ${DEFS} \
+				-DCMAKE_TOOLCHAIN_FILE=$APOTHECARY_DIR/toolchains/ios.toolchain.cmake \
+				-DPLATFORM=$PLATFORM \
+				-DCMAKE_INSTALL_PREFIX=Release \
+				-DCMAKE_BUILD_TYPE=Release \
+				-DDEPLOYMENT_TARGET=${MIN_SDK_VER} \
+				-DCMAKE_CXX_FLAGS="-DUSE_PTHREADS=1 ${FLAG_RELEASE}" \
+				-DCMAKE_C_FLAGS="-DUSE_PTHREADS=1 ${FLAG_RELEASE}" \
+				-DENABLE_BITCODE=OFF \
+				-DENABLE_ARC=ON \
+				-DENABLE_VISIBILITY=OFF \
+				-DCMAKE_VERBOSE_MAKEFILE=${VERBOSE_MAKEFILE} \
+				-DCMAKE_POSITION_INDEPENDENT_CODE=TRUE
+		cmake --build . --config Release --target install
+		cd ..
+	fi
+    # if [ "$TYPE" == "ios" ] ; then
+	# 	xcodebuild archive -scheme $SCHEME -archivePath $ARCHS/iOSDevice.xcarchive -sdk iphoneos SKIP_INSTALL=NO BUILD_LIBRARIES_FOR_DISTRIBUTION=YES -project OpenGLES.xcodeproj
+	# elif [[ "$TYPE" =~ ^(osx|ios|tvos|xros|catos|watchos)$ ]]; then
+	# 	echo
+	# fi
+
+}
+
+# executed inside the lib src dir, first arg $1 is the dest libs dir root
+function copy() {
+	echo
+	# headers
+	mkdir -p $1/include
+    rm -rf $1/include/*
+    cp -Rv include/* $1/include
+
+    . "$SECURE_SCRIPT"
+    # libs
+    mkdir -p $1/lib/$TYPE
+    if [[ "$TYPE" =~ ^(osx|ios|tvos|xros|catos|watchos)$ ]]; then
+        cp -v -r build_${TYPE}_${PLATFORM}/Release/include/* $1/include
+        mkdir -p $1/lib/$TYPE/$PLATFORM/
+        cp -Rv build_${TYPE}_${PLATFORM}/Release/lib/libmetalangle.a $1/lib/$TYPE/$PLATFORM/libmetalangle.a
+        secure $1/lib/$TYPE/$PLATFORM/libmetalangle.a metalangle.pkl
+    fi
+
+    # copy license files
+    if [ -d "$1/license" ]; then
+        rm -rf $1/license
+    fi
+    mkdir -p $1/license
+    cp -v LICENSE $1/license/
+}
+
+# executed inside the lib src dir
+function clean() {
+	if [[ "$TYPE" =~ ^(osx|ios|tvos|xros|catos|watchos)$ ]]; then
+        rm -f build_${TYPE}_${PLATFORM}
+        rm -f CMakeCache.txt
+    fi
+}
+
+function load() {
+    . "$LOAD_SCRIPT"
+    LOAD_RESULT=$(loadsave ${TYPE} "metalangle" ${ARCH} ${VER} "$LIBS_DIR_REAL/$1/lib/$TYPE/$PLATFORM" ${PLATFORM} )
+    PREBUILT=$(echo "$LOAD_RESULT" | tail -n 1)
+    if [ "$PREBUILT" -eq 1 ]; then
+        echo 1
+    else
+        echo 0
+    fi
+}