| #include <metal_stdlib> |
| #include <simd/simd.h> |
| using namespace metal; |
| struct Inputs { |
| }; |
| struct Outputs { |
| half4 sk_FragColor [[color(0)]]; |
| }; |
| fragment Outputs fragmentMain(Inputs _in [[stage_in]], bool _frontFacing [[front_facing]], float4 _fragCoord [[position]]) { |
| Outputs _out; |
| (void)_out; |
| half4 x = half4(1.0h, 1.0h, 1.0h, 1.0h); |
| do { |
| x.x = x.x - 0.25h; |
| if (x.x <= 0.0h) break; |
| } while (x.w == 1.0h); |
| do { |
| x.z = x.z - 0.25h; |
| if (x.w == 1.0h) continue; |
| x.y = 0.0h; |
| } while (x.z > 0.0h); |
| _out.sk_FragColor = x; |
| return _out; |
| } |