| #include <metal_stdlib> |
| #include <simd/simd.h> |
| using namespace metal; |
| struct Inputs { |
| float4 src; |
| float4 dst; |
| }; |
| struct Outputs { |
| float4 sk_FragColor [[color(0)]]; |
| }; |
| float _blend_overlay_component(float2 s, float2 d) { |
| return 2.0 * d.x <= d.y ? (2.0 * s.x) * d.x : s.y * d.y - (2.0 * (d.y - d.x)) * (s.y - s.x); |
| } |
| |
| |
| fragment Outputs fragmentMain(Inputs _in [[stage_in]], bool _frontFacing [[front_facing]], float4 _fragCoord [[position]]) { |
| Outputs _outputStruct; |
| thread Outputs* _out = &_outputStruct; |
| float4 _0_blend_hard_light; |
| { |
| float4 _1_blend_overlay; |
| { |
| float4 _2_result = float4(_blend_overlay_component(_in.dst.xw, _in.src.xw), _blend_overlay_component(_in.dst.yw, _in.src.yw), _blend_overlay_component(_in.dst.zw, _in.src.zw), _in.dst.w + (1.0 - _in.dst.w) * _in.src.w); |
| _2_result.xyz = _2_result.xyz + _in.src.xyz * (1.0 - _in.dst.w) + _in.dst.xyz * (1.0 - _in.src.w); |
| _1_blend_overlay = _2_result; |
| } |
| _0_blend_hard_light = _1_blend_overlay; |
| |
| } |
| _out->sk_FragColor = _0_blend_hard_light; |
| |
| return *_out; |
| } |