| #include <metal_stdlib> |
| #include <simd/simd.h> |
| using namespace metal; |
| struct Inputs { |
| float4 src; |
| float4 dst; |
| }; |
| struct Outputs { |
| float4 sk_FragColor [[color(0)]]; |
| }; |
| |
| |
| fragment Outputs fragmentMain(Inputs _in [[stage_in]], bool _frontFacing [[front_facing]], float4 _fragCoord [[position]]) { |
| Outputs _outputStruct; |
| thread Outputs* _out = &_outputStruct; |
| float4 _0_blend_luminosity; |
| { |
| float _1_alpha = _in.dst.w * _in.src.w; |
| float3 _2_sda = _in.src.xyz * _in.dst.w; |
| float3 _3_dsa = _in.dst.xyz * _in.src.w; |
| float3 _4_blend_set_color_luminance; |
| { |
| float _5_15_blend_color_luminance; |
| { |
| _5_15_blend_color_luminance = dot(float3(0.30000001192092896, 0.5899999737739563, 0.10999999940395355), _2_sda); |
| } |
| float _6_lum = _5_15_blend_color_luminance; |
| |
| float _7_16_blend_color_luminance; |
| { |
| _7_16_blend_color_luminance = dot(float3(0.30000001192092896, 0.5899999737739563, 0.10999999940395355), _3_dsa); |
| } |
| float3 _8_result = (_6_lum - _7_16_blend_color_luminance) + _3_dsa; |
| |
| float _9_minComp = min(min(_8_result.x, _8_result.y), _8_result.z); |
| float _10_maxComp = max(max(_8_result.x, _8_result.y), _8_result.z); |
| if (_9_minComp < 0.0 && _6_lum != _9_minComp) { |
| _8_result = _6_lum + ((_8_result - _6_lum) * _6_lum) / (_6_lum - _9_minComp); |
| } |
| _4_blend_set_color_luminance = _10_maxComp > _1_alpha && _10_maxComp != _6_lum ? _6_lum + ((_8_result - _6_lum) * (_1_alpha - _6_lum)) / (_10_maxComp - _6_lum) : _8_result; |
| } |
| _0_blend_luminosity = float4((((_4_blend_set_color_luminance + _in.dst.xyz) - _3_dsa) + _in.src.xyz) - _2_sda, (_in.src.w + _in.dst.w) - _1_alpha); |
| |
| } |
| _out->sk_FragColor = _0_blend_luminosity; |
| |
| return *_out; |
| } |