1#include <metal_stdlib> 2#include <simd/simd.h> 3#ifdef __clang__ 4#pragma clang diagnostic ignored "-Wall" 5#endif 6using namespace metal; 7struct InnerLUT { 8 float3 values; 9}; 10struct OuterLUT { 11 array<InnerLUT, 3> inner; 12}; 13struct Root { 14 array<OuterLUT, 3> outer; 15}; 16struct Uniforms { 17 half4 colorGreen; 18 half4 colorRed; 19}; 20struct Inputs { 21}; 22struct Outputs { 23 half4 sk_FragColor [[color(0)]]; 24}; 25fragment Outputs fragmentMain(Inputs _in [[stage_in]], constant Uniforms& _uniforms [[buffer(0)]], bool _frontFacing [[front_facing]], float4 _fragCoord [[position]]) { 26 Outputs _out; 27 (void)_out; 28 Root data; 29 data.outer[0].inner[0].values = float3(1.0, 10.0, 100.0); 30 data.outer[0].inner[1].values = float3(2.0, 20.0, 200.0); 31 data.outer[0].inner[2].values = float3(3.0, 30.0, 300.0); 32 data.outer[1].inner[0].values = float3(4.0, 40.0, 400.0); 33 data.outer[1].inner[1].values = float3(5.0, 50.0, 500.0); 34 data.outer[1].inner[2].values = float3(6.0, 60.0, 600.0); 35 data.outer[2].inner[0].values = float3(7.0, 70.0, 700.0); 36 data.outer[2].inner[1].values = float3(8.0, 80.0, 800.0); 37 data.outer[2].inner[2].values = float3(9.0, 90.0, 900.0); 38 float3 expected = float3(0.0); 39 for (int i = 0;i < 3; ++i) { 40 for (int j = 0;j < 3; ++j) { 41 expected += float3(1.0, 10.0, 100.0); 42 if (any(data.outer[i].inner[j].values != expected)) { 43 _out.sk_FragColor = _uniforms.colorRed; 44 return _out; 45 } 46 for (int k = 0;k < 3; ++k) { 47 if (data.outer[i].inner[j].values[k] != expected[k]) { 48 _out.sk_FragColor = _uniforms.colorRed; 49 return _out; 50 } 51 } 52 } 53 } 54 _out.sk_FragColor = _uniforms.colorGreen; 55 return _out; 56} 57