| #include <metal_stdlib> |
| #include <simd/simd.h> |
| using namespace metal; |
| struct Inputs { |
| }; |
| struct Outputs { |
| float4 sk_FragColor [[color(0)]]; |
| }; |
| struct Globals { |
| float3x3 a; |
| float3x3 b; |
| float4x4 c; |
| float4x4 d; |
| }; |
| |
| template <int C, int R> |
| matrix<float, C, R> matrixCompMult(matrix<float, C, R> a, matrix<float, C, R> b) { |
| matrix<float, C, R> result; |
| for (int c = 0; c < C; ++c) { |
| result[c] = a[c] * b[c]; |
| } |
| return result; |
| } |
| |
| |
| |
| |
| fragment Outputs fragmentMain(Inputs _in [[stage_in]], bool _frontFacing [[front_facing]], float4 _fragCoord [[position]]) { |
| Globals globalStruct{{}, {}, {}, {}}; |
| thread Globals* _globals = &globalStruct; |
| (void)_globals; |
| Outputs _outputStruct; |
| thread Outputs* _out = &_outputStruct; |
| _out->sk_FragColor.xyz = matrixCompMult(_globals->a, _globals->b)[0]; |
| _out->sk_FragColor = matrixCompMult(_globals->c, _globals->d)[0]; |
| return *_out; |
| } |