ed289e777c
This tightens up our intrinsics slightly; after inlining, it eliminates one scratch variable. (We no longer need to copy `sda` into `hueColor` as hueColor is now unchanged.) Change-Id: Iece5ba2fe11cde54481704a1787114a2c2a66d9b Reviewed-on: https://skia-review.googlesource.com/c/skia/+/336599 Commit-Queue: John Stiles <johnstiles@google.com> Commit-Queue: Brian Osman <brianosman@google.com> Auto-Submit: John Stiles <johnstiles@google.com> Reviewed-by: Brian Osman <brianosman@google.com>
105 lines
4.7 KiB
Metal
105 lines
4.7 KiB
Metal
#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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};
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struct Outputs {
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float4 sk_FragColor [[color(0)]];
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};
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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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float4 _0_blend_hue;
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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 _13_blend_set_color_saturation;
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{
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float _15_blend_color_saturation;
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{
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_15_blend_color_saturation = max(max(_3_dsa.x, _3_dsa.y), _3_dsa.z) - min(min(_3_dsa.x, _3_dsa.y), _3_dsa.z);
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}
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float _14_sat = _15_blend_color_saturation;
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if (_2_sda.x <= _2_sda.y) {
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if (_2_sda.y <= _2_sda.z) {
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float3 _16_blend_set_color_saturation_helper;
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{
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_16_blend_set_color_saturation_helper = _2_sda.x < _2_sda.z ? float3(0.0, (_14_sat * (_2_sda.y - _2_sda.x)) / (_2_sda.z - _2_sda.x), _14_sat) : float3(0.0);
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}
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_13_blend_set_color_saturation = _16_blend_set_color_saturation_helper;
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} else if (_2_sda.x <= _2_sda.z) {
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float3 _17_blend_set_color_saturation_helper;
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{
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_17_blend_set_color_saturation_helper = _2_sda.x < _2_sda.y ? float3(0.0, (_14_sat * (_2_sda.z - _2_sda.x)) / (_2_sda.y - _2_sda.x), _14_sat) : float3(0.0);
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}
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_13_blend_set_color_saturation = _17_blend_set_color_saturation_helper.xzy;
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} else {
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float3 _18_blend_set_color_saturation_helper;
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{
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_18_blend_set_color_saturation_helper = _2_sda.z < _2_sda.y ? float3(0.0, (_14_sat * (_2_sda.x - _2_sda.z)) / (_2_sda.y - _2_sda.z), _14_sat) : float3(0.0);
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}
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_13_blend_set_color_saturation = _18_blend_set_color_saturation_helper.yzx;
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}
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} else if (_2_sda.x <= _2_sda.z) {
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float3 _19_blend_set_color_saturation_helper;
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{
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_19_blend_set_color_saturation_helper = _2_sda.y < _2_sda.z ? float3(0.0, (_14_sat * (_2_sda.x - _2_sda.y)) / (_2_sda.z - _2_sda.y), _14_sat) : float3(0.0);
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}
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_13_blend_set_color_saturation = _19_blend_set_color_saturation_helper.yxz;
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} else if (_2_sda.y <= _2_sda.z) {
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float3 _20_blend_set_color_saturation_helper;
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{
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_20_blend_set_color_saturation_helper = _2_sda.y < _2_sda.x ? float3(0.0, (_14_sat * (_2_sda.z - _2_sda.y)) / (_2_sda.x - _2_sda.y), _14_sat) : float3(0.0);
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}
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_13_blend_set_color_saturation = _20_blend_set_color_saturation_helper.zxy;
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} else {
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float3 _21_blend_set_color_saturation_helper;
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{
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_21_blend_set_color_saturation_helper = _2_sda.z < _2_sda.x ? float3(0.0, (_14_sat * (_2_sda.y - _2_sda.z)) / (_2_sda.x - _2_sda.z), _14_sat) : float3(0.0);
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}
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_13_blend_set_color_saturation = _21_blend_set_color_saturation_helper.zyx;
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}
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}
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float3 _22_blend_set_color_luminance;
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{
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float _27_blend_color_luminance;
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{
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_27_blend_color_luminance = dot(float3(0.30000001192092896, 0.5899999737739563, 0.10999999940395355), _3_dsa);
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}
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float _23_lum = _27_blend_color_luminance;
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float _28_blend_color_luminance;
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{
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_28_blend_color_luminance = dot(float3(0.30000001192092896, 0.5899999737739563, 0.10999999940395355), _13_blend_set_color_saturation);
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}
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float3 _24_result = (_23_lum - _28_blend_color_luminance) + _13_blend_set_color_saturation;
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float _25_minComp = min(min(_24_result.x, _24_result.y), _24_result.z);
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float _26_maxComp = max(max(_24_result.x, _24_result.y), _24_result.z);
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if (_25_minComp < 0.0 && _23_lum != _25_minComp) {
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_24_result = _23_lum + ((_24_result - _23_lum) * _23_lum) / (_23_lum - _25_minComp);
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}
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_22_blend_set_color_luminance = _26_maxComp > _1_alpha && _26_maxComp != _23_lum ? _23_lum + ((_24_result - _23_lum) * (_1_alpha - _23_lum)) / (_26_maxComp - _23_lum) : _24_result;
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}
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_0_blend_hue = float4((((_22_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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}
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_out->sk_FragColor = _0_blend_hue;
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return *_out;
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}
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