f8dfc3b518
`globalStruct` is now named `_skGlobals` and is passed around directly by reference, with no additional helper variable (`_globals`) at all. Change-Id: Icc5566d2212afd14a4d43700e89f50bedcc8b45f Bug: skia:11168 Reviewed-on: https://skia-review.googlesource.com/c/skia/+/355717 Reviewed-by: Brian Osman <brianosman@google.com> Commit-Queue: Brian Osman <brianosman@google.com> Commit-Queue: John Stiles <johnstiles@google.com> Auto-Submit: John Stiles <johnstiles@google.com>
36 lines
872 B
Metal
36 lines
872 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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};
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struct Outputs {
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float4 sk_FragColor [[color(0)]];
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};
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struct Globals {
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float3x3 a;
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float3x3 b;
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float4x4 c;
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float4x4 d;
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};
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template <int C, int R>
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matrix<float, C, R> matrixCompMult(matrix<float, C, R> a, matrix<float, C, R> b) {
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matrix<float, C, R> result;
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for (int c = 0; c < C; ++c) {
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result[c] = a[c] * b[c];
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}
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return result;
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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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Globals _skGlobals{{}, {}, {}, {}};
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Outputs _outputStruct;
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thread Outputs* _out = &_outputStruct;
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_out->sk_FragColor.xyz = matrixCompMult(_skGlobals.a, _skGlobals.b)[0];
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_out->sk_FragColor = matrixCompMult(_skGlobals.c, _skGlobals.d)[0];
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return *_out;
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}
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