aeae3a58e3
This CL also updates the blend tests to use sk_FragColor instead of returning a half4, as the Metal backend assumes that a fragment processor's `main` will return void and always synthesizes a `return *_out;` at the end. (context link: https://osscs.corp.google.com/android/platform/superproject/+/master:external/skqp/src/sksl/SkSLMetalCodeGenerator.cpp;l=803;drc=842d31b14159626054e01dd32826563a8f4214bf ) BYPASS_INCLUSIVE_LANGUAGE_REASON=see http://b/168134166 Change-Id: I330a456bf25ee72d3a29c59cd624625378ae80a0 Bug: skia:10649, skia:10757, skia:10758, skia:10759, skia:10760, skia:10761, skia:10762 Reviewed-on: https://skia-review.googlesource.com/c/skia/+/319409 Commit-Queue: John Stiles <johnstiles@google.com> Reviewed-by: Ethan Nicholas <ethannicholas@google.com>
26 lines
641 B
Metal
26 lines
641 B
Metal
#include <metal_stdlib>
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#include <simd/simd.h>
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using namespace metal;
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struct Inputs {
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float4 srcdst;
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};
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struct Outputs {
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float4 sk_FragColor [[color(0)]];
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};
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float4 blend_xor(float4 src, float4 dst) {
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return (1.0 - dst.w) * src + (1.0 - src.w) * dst;
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}
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fragment Outputs fragmentMain(Inputs _in [[stage_in]], bool _frontFacing [[front_facing]], float4 _fragCoord [[position]]) {
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Outputs _outputStruct;
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thread Outputs* _out = &_outputStruct;
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float4 _0_blend_xor;
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{
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_0_blend_xor = (1.0 - _in.dst.w) * _in.src + (1.0 - _in.src.w) * _in.dst;
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}
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_out->sk_FragColor = _0_blend_xor;
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return *_out;
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}
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