73122aa45f
Fixes another instance of anglebug.com/2098 with advanced blend functions. Change-Id: I91863723d8b4c33ab2f5a527fe0374e8947bba16 Reviewed-on: https://skia-review.googlesource.com/c/skia/+/368813 Reviewed-by: Michael Ludwig <michaelludwig@google.com> Commit-Queue: Brian Osman <brianosman@google.com>
62 lines
2.5 KiB
GLSL
62 lines
2.5 KiB
GLSL
#version 400
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out vec4 sk_FragColor;
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in vec4 src;
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in vec4 dst;
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vec3 _blend_set_color_saturation_helper(vec3 minMidMax, float sat) {
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if (minMidMax.x < minMidMax.z) {
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float _19_n = sat * (minMidMax.y - minMidMax.x);
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float _20_d = minMidMax.z - minMidMax.x;
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return vec3(0.0, _19_n / _20_d, sat);
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} else {
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return vec3(0.0);
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}
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}
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void main() {
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float _1_alpha = dst.w * src.w;
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vec3 _2_sda = src.xyz * dst.w;
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vec3 _3_dsa = dst.xyz * src.w;
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vec3 _4_blend_set_color_saturation;
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float _5_sat = max(max(_2_sda.x, _2_sda.y), _2_sda.z) - min(min(_2_sda.x, _2_sda.y), _2_sda.z);
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if (_3_dsa.x <= _3_dsa.y) {
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if (_3_dsa.y <= _3_dsa.z) {
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_4_blend_set_color_saturation = _blend_set_color_saturation_helper(_3_dsa, _5_sat);
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} else if (_3_dsa.x <= _3_dsa.z) {
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_4_blend_set_color_saturation = _blend_set_color_saturation_helper(_3_dsa.xzy, _5_sat).xzy;
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} else {
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_4_blend_set_color_saturation = _blend_set_color_saturation_helper(_3_dsa.zxy, _5_sat).yzx;
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}
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} else if (_3_dsa.x <= _3_dsa.z) {
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_4_blend_set_color_saturation = _blend_set_color_saturation_helper(_3_dsa.yxz, _5_sat).yxz;
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} else if (_3_dsa.y <= _3_dsa.z) {
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_4_blend_set_color_saturation = _blend_set_color_saturation_helper(_3_dsa.yzx, _5_sat).zxy;
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} else {
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_4_blend_set_color_saturation = _blend_set_color_saturation_helper(_3_dsa.zyx, _5_sat).zyx;
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}
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vec3 _6_blend_set_color_luminance;
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float _7_lum = dot(vec3(0.30000001192092896, 0.5899999737739563, 0.10999999940395355), _3_dsa);
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vec3 _8_result = (_7_lum - dot(vec3(0.30000001192092896, 0.5899999737739563, 0.10999999940395355), _4_blend_set_color_saturation)) + _4_blend_set_color_saturation;
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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 && _7_lum != _9_minComp) {
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float _11_d = _7_lum - _9_minComp;
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_8_result = _7_lum + (_8_result - _7_lum) * (_7_lum / _11_d);
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}
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if (_10_maxComp > _1_alpha && _10_maxComp != _7_lum) {
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vec3 _12_n = (_8_result - _7_lum) * (_1_alpha - _7_lum);
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float _13_d = _10_maxComp - _7_lum;
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_6_blend_set_color_luminance = _7_lum + _12_n / _13_d;
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} else {
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_6_blend_set_color_luminance = _8_result;
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}
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sk_FragColor = vec4((((_6_blend_set_color_luminance + dst.xyz) - _3_dsa) + src.xyz) - _2_sda, (src.w + dst.w) - _1_alpha);
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}
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