1#include <metal_stdlib> 2#include <simd/simd.h> 3#ifdef __clang__ 4#pragma clang diagnostic ignored "-Wall" 5#endif 6using namespace metal; 7struct Inputs { 8}; 9struct Outputs { 10 half4 sk_FragColor [[color(0)]]; 11}; 12fragment Outputs fragmentMain(Inputs _in [[stage_in]], bool _frontFacing [[front_facing]], float4 _fragCoord [[position]]) { 13 Outputs _out; 14 (void)_out; 15 half4 x = half4(1.0h); 16 do { 17 x.x = x.x - 0.25h; 18 if (x.x <= 0.0h) break; 19 } while (x.w == 1.0h); 20 do { 21 x.z = x.z - 0.25h; 22 if (x.w == 1.0h) continue; 23 x.y = 0.0h; 24 } while (x.z > 0.0h); 25 _out.sk_FragColor = x; 26 return _out; 27} 28