1#include <metal_stdlib> 2#include <simd/simd.h> 3using namespace metal; 4struct Uniforms { 5 half4 N; 6 half4 I; 7 half4 NRef; 8 half4 colorGreen; 9 half4 colorRed; 10}; 11struct Inputs { 12}; 13struct Outputs { 14 half4 sk_FragColor [[color(0)]]; 15}; 16fragment Outputs fragmentMain(Inputs _in [[stage_in]], constant Uniforms& _uniforms [[buffer(0)]], bool _frontFacing [[front_facing]], float4 _fragCoord [[position]]) { 17 Outputs _out; 18 (void)_out; 19 half4 expectedPos = half4(1.0h, 2.0h, 3.0h, 4.0h); 20 half4 expectedNeg = half4(-1.0h, -2.0h, -3.0h, -4.0h); 21 _out.sk_FragColor = ((((((((((_uniforms.NRef.x) * (_uniforms.I.x) < 0) ? 1 : -1) * (_uniforms.N.x)) == expectedNeg.x && all(faceforward(_uniforms.N.xy, _uniforms.I.xy, _uniforms.NRef.xy) == expectedNeg.xy)) && all(faceforward(_uniforms.N.xyz, _uniforms.I.xyz, _uniforms.NRef.xyz) == expectedPos.xyz)) && all(faceforward(_uniforms.N, _uniforms.I, _uniforms.NRef) == expectedPos)) && -1.0h == expectedNeg.x) && all(half2(-1.0h, -2.0h) == expectedNeg.xy)) && all(half3(1.0h, 2.0h, 3.0h) == expectedPos.xyz)) && all(half4(1.0h, 2.0h, 3.0h, 4.0h) == expectedPos) ? _uniforms.colorGreen : _uniforms.colorRed; 22 return _out; 23} 24