1#include <metal_stdlib> 2#include <simd/simd.h> 3using namespace metal; 4struct Inputs { 5}; 6struct Outputs { 7 half4 sk_FragColor [[color(0)]]; 8}; 9float3x3 float3x3_from_float2x2(float2x2 x0) { 10 return float3x3(float3(x0[0].xy, 0.0), float3(x0[1].xy, 0.0), float3(0.0, 0.0, 1.0)); 11} 12fragment Outputs fragmentMain(Inputs _in [[stage_in]], bool _frontFacing [[front_facing]], float4 _fragCoord [[position]]) { 13 Outputs _out; 14 (void)_out; 15 float3x3 a = float3x3(1.0); 16 float3x3 b = float3x3_from_float2x2(float2x2(1.0)); 17 _out.sk_FragColor.x = half(all(a[0] == b[0]) ? 0 : 1); 18 return _out; 19} 20