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#!/bin/bash
set -x
set -e
cd `dirname "$0"`
shadernames=(FullscreenVert BlitFrom2D BlitFrom2DArray BlitFrom3D BlitFromCube BlitFromCubeArray)
generate_shaders()
{
fileplatform=$1
compileplatform=$2
sdkplatform=$3
minversion=$4
for shadername in "${shadernames[@]}"; do
xcrun -sdk $sdkplatform metal -c -std=$compileplatform-metal2.0 -m$sdkplatform-version-min=$minversion -Wall -O3 -D COMPILE_$shadername -o ./$shadername.air ./Metal_Blit.metal || exit $?
xcrun -sdk $sdkplatform metallib -o $shadername.metallib $shadername.air || exit $?
xxd -i $shadername.metallib | perl -w -p -e 's/\Aunsigned /const unsigned /;' >./${shadername}_$fileplatform.h
rm -f $shadername.air $shadername.metallib
done
}
generate_shaders macos macos macosx 10.11
generate_shaders ios ios iphoneos 11.0
generate_shaders iphonesimulator ios iphonesimulator 11.0
generate_shaders tvos ios appletvos 11.0
generate_shaders tvsimulator ios appletvsimulator 11.0
# Bundle together one mega-header
catShaders()
{
target=$1
for shadername in "${shadernames[@]}"; do
cat ${shadername}_$target.h >> Metal_Blit.h
done
}
rm -f Metal_Blit.h
echo "#if defined(SDL_PLATFORM_IOS)" >> Metal_Blit.h
echo "#if TARGET_OS_SIMULATOR" >> Metal_Blit.h
catShaders iphonesimulator
echo "#else" >> Metal_Blit.h
catShaders ios
echo "#endif" >> Metal_Blit.h
echo "#elif defined(SDL_PLATFORM_TVOS)" >> Metal_Blit.h
echo "#if TARGET_OS_SIMULATOR" >> Metal_Blit.h
catShaders tvsimulator
echo "#else" >> Metal_Blit.h
catShaders tvos
echo "#endif" >> Metal_Blit.h
echo "#else" >> Metal_Blit.h
catShaders macos
echo "#endif" >> Metal_Blit.h
# Clean up
cleanupShaders()
{
target=$1
for shadername in "${shadernames[@]}"; do
rm -f ${shadername}_$target.h
done
}
cleanupShaders iphonesimulator
cleanupShaders ios
cleanupShaders tvsimulator
cleanupShaders tvos
cleanupShaders macos
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