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|
#!/usr/bin/env bash
set -e
# NOTE: fxc is tested on Linux with https://github.com/mozilla/fxc2
which fxc &>/dev/null && HAVE_FXC=1 || HAVE_FXC=0
which dxc &>/dev/null && HAVE_DXC=1 || HAVE_DXC=0
which spirv-cross &>/dev/null && HAVE_SPIRV_CROSS=1 || HAVE_SPIRV_CROSS=0
[ "$HAVE_FXC" != 0 ] || echo "fxc not in PATH; D3D11 shaders will not be rebuilt"
[ "$HAVE_DXC" != 0 ] || echo "dxc not in PATH; D3D12 shaders will not be rebuilt"
[ "$HAVE_SPIRV_CROSS" != 0 ] || echo "spirv-cross not in PATH; D3D11, D3D12, Metal shaders will not be rebuilt"
USE_FXC=${USE_FXC:-$HAVE_FXC}
USE_DXC=${USE_DXC:-$HAVE_DXC}
USE_SPIRV_CROSS=${USE_SPIRV_CROSS:-$HAVE_SPIRV_CROSS}
spirv_bundle="spir-v.h"
dxbc50_bundle="dxbc50.h"
dxil60_bundle="dxil60.h"
metal_bundle="metal.h"
rm -f "$spirv_bundle"
[ "$USE_SPIRV_CROSS" != 0 ] && rm -f "$metal_bundle"
[ "$USE_SPIRV_CROSS" != 0 ] && [ "$USE_FXC" != 0 ] && rm -f "$dxbc50_bundle"
[ "$USE_SPIRV_CROSS" != 0 ] && [ "$USE_DXC" != 0 ] && rm -f "$dxil60_bundle"
make-header() {
xxd -i "$1" | sed \
-e 's/^unsigned /const unsigned /g' \
-e 's,^const,static const,' \
> "$1.h"
}
compile-hlsl-dxbc() {
local src="$1"
local profile="$2"
local output_basename="$3"
local var_name="$(echo "$output_basename" | sed -e 's/\./_/g')"
fxc "$src" /E main /T $2 /Fh "$output_basename.tmp.h" || exit $?
sed \
-e "s/g_main/$var_name/;s/\r//g" \
-e 's,^const,static const,' \
-e 's,const unsigned,const signed,' \
< "$output_basename.tmp.h" \
> "$output_basename.h"
rm -f "$output_basename.tmp.h"
}
compile-hlsl-dxil() {
local src="$1"
local profile="$2"
local output_basename="$3"
local var_name="$(echo "$output_basename" | sed -e 's/\./_/g')"
dxc "$src" -E main -T $2 -Fh "$output_basename.tmp.h" -O3 || exit $?
sed \
-e "s/g_main/$var_name/;s/\r//g" \
-e 's,^const,static const,' \
< "$output_basename.tmp.h" \
> "$output_basename.h"
rm -f "$output_basename.tmp.h"
}
for i in *.vert *.frag; do
spv="$i.spv"
metal="$i.metal"
hlsl50="$i.sm50.hlsl"
dxbc50="$i.sm50.dxbc"
hlsl60="$i.sm60.hlsl"
dxil60="$i.sm60.dxil"
glslangValidator -g0 -Os "$i" -V -o "$spv" --quiet
make-header "$spv"
echo "#include \"$spv.h\"" >> "$spirv_bundle"
if [ "$USE_SPIRV_CROSS" = "0" ]; then
continue
fi
spirv-cross "$spv" --hlsl --shader-model 50 --hlsl-enable-compat --output "$hlsl50"
spirv-cross "$spv" --hlsl --shader-model 60 --hlsl-enable-compat --output "$hlsl60"
if [ "${i##*.}" == "frag" ]; then
hlsl_stage="ps"
else
hlsl_stage="vs"
fi
if [ "$USE_FXC" != "0" ]; then
compile-hlsl-dxbc "$hlsl50" ${hlsl_stage}_5_0 "$dxbc50"
echo "#include \"$dxbc50.h\"" >> "$dxbc50_bundle"
fi
if [ "$USE_DXC" != "0" ]; then
compile-hlsl-dxil "$hlsl60" ${hlsl_stage}_6_0 "$dxil60"
echo "#include \"$dxil60.h\"" >> "$dxil60_bundle"
fi
spirv-cross "$spv" --msl --output "$metal"
make-header "$metal"
echo "#include \"$metal.h\"" >> "$metal_bundle"
done
|
