2020-09-25 17:35:58 +00:00
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#include <metal_stdlib>
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#include <simd/simd.h>
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using namespace metal;
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struct Inputs {
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float4 src;
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float4 dst;
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2020-09-25 17:35:58 +00:00
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};
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struct Outputs {
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float4 sk_FragColor [[color(0)]];
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};
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2020-10-06 18:43:32 +00:00
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2020-09-25 17:35:58 +00:00
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fragment Outputs fragmentMain(Inputs _in [[stage_in]], bool _frontFacing [[front_facing]], float4 _fragCoord [[position]]) {
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Outputs _outputStruct;
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thread Outputs* _out = &_outputStruct;
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2020-10-13 15:19:41 +00:00
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float4 _0_blend_luminosity;
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{
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float _1_alpha = _in.dst.w * _in.src.w;
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float3 _2_sda = _in.src.xyz * _in.dst.w;
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float3 _3_dsa = _in.dst.xyz * _in.src.w;
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float3 _4_blend_set_color_luminance;
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{
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float _5_15_blend_color_luminance;
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{
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_5_15_blend_color_luminance = dot(float3(0.30000001192092896, 0.5899999737739563, 0.10999999940395355), _2_sda);
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}
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float _6_lum = _5_15_blend_color_luminance;
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float _7_16_blend_color_luminance;
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{
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_7_16_blend_color_luminance = dot(float3(0.30000001192092896, 0.5899999737739563, 0.10999999940395355), _3_dsa);
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}
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float3 _8_result = (_6_lum - _7_16_blend_color_luminance) + _3_dsa;
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float _9_minComp = min(min(_8_result.x, _8_result.y), _8_result.z);
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float _10_maxComp = max(max(_8_result.x, _8_result.y), _8_result.z);
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if (_9_minComp < 0.0 && _6_lum != _9_minComp) {
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_8_result = _6_lum + ((_8_result - _6_lum) * _6_lum) / (_6_lum - _9_minComp);
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}
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_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;
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}
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_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);
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2020-09-25 17:35:58 +00:00
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}
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_out->sk_FragColor = _0_blend_luminosity;
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2020-09-25 17:35:58 +00:00
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return *_out;
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}
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