1#include <metal_stdlib> 2#include <simd/simd.h> 3using namespace metal; 4struct Uniforms { 5 float4 colorWhite; 6 float4 colorGreen; 7 float4 colorRed; 8}; 9struct Inputs { 10}; 11struct Outputs { 12 float4 sk_FragColor [[color(0)]]; 13}; 14 15fragment Outputs fragmentMain(Inputs _in [[stage_in]], constant Uniforms& _uniforms [[buffer(0)]], bool _frontFacing [[front_facing]], float4 _fragCoord [[position]]) { 16 Outputs _out; 17 (void)_out; 18 float2 x = _uniforms.colorWhite.xy; 19 x = -x; 20 _out.sk_FragColor = all(x == float2(-1.0)) ? _uniforms.colorGreen : _uniforms.colorRed; 21 return _out; 22} 23