1 files changed, 68 insertions, 0 deletions

diff --git a/contrib/SDL-3.2.8/src/gpu/metal/compile_shaders.sh b/contrib/SDL-3.2.8/src/gpu/metal/compile_shaders.sh
new file mode 100755
index 0000000..0b8c33c
--- /dev/null
+++ b/contrib/SDL-3.2.8/src/gpu/metal/compile_shaders.sh
@@ -0,0 +1,68 @@
+#!/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
\ No newline at end of file