1#include <metal_stdlib> 2#include <simd/simd.h> 3#ifdef __clang__ 4#pragma clang diagnostic ignored "-Wall" 5#endif 6using namespace metal; 7constant const half sk_PrivkGuardedDivideEpsilon = half(false ? 1e-08 : 0.0); 8struct Uniforms { 9 half4 src; 10 half4 dst; 11}; 12struct Inputs { 13}; 14struct Outputs { 15 half4 sk_FragColor [[color(0)]]; 16}; 17half color_dodge_component_Qhh2h2(half2 s, half2 d); 18half color_dodge_component_Qhh2h2(half2 s, half2 d) { 19 if (d.x == 0.0h) { 20 return s.x * (1.0h - d.y); 21 } else { 22 half delta = s.y - s.x; 23 if (delta == 0.0h) { 24 return (s.y * d.y + s.x * (1.0h - d.y)) + d.x * (1.0h - s.y); 25 } else { 26 delta = min(d.y, (d.x * s.y) / (delta + sk_PrivkGuardedDivideEpsilon)); 27 return (delta * s.y + s.x * (1.0h - d.y)) + d.x * (1.0h - s.y); 28 } 29 } 30} 31fragment Outputs fragmentMain(Inputs _in [[stage_in]], constant Uniforms& _uniforms [[buffer(0)]], bool _frontFacing [[front_facing]], float4 _fragCoord [[position]]) { 32 Outputs _out; 33 (void)_out; 34 _out.sk_FragColor = half4(color_dodge_component_Qhh2h2(_uniforms.src.xw, _uniforms.dst.xw), color_dodge_component_Qhh2h2(_uniforms.src.yw, _uniforms.dst.yw), color_dodge_component_Qhh2h2(_uniforms.src.zw, _uniforms.dst.zw), _uniforms.src.w + (1.0h - _uniforms.src.w) * _uniforms.dst.w); 35 return _out; 36} 37