1#include <metal_stdlib> 2#include <simd/simd.h> 3using namespace metal; 4struct Uniforms { 5 half4 colorWhite; 6 half4 colorGreen; 7 half4 colorRed; 8}; 9struct Inputs { 10}; 11struct Outputs { 12 half4 sk_FragColor [[color(0)]]; 13}; 14fragment Outputs fragmentMain(Inputs _in [[stage_in]], constant Uniforms& _uniforms [[buffer(0)]], bool _frontFacing [[front_facing]], float4 _fragCoord [[position]]) { 15 Outputs _out; 16 (void)_out; 17 half2 x = _uniforms.colorWhite.xy; 18 x = -x; 19 _out.sk_FragColor = all(x == half2(-1.0h)) ? _uniforms.colorGreen : _uniforms.colorRed; 20 return _out; 21} 22