aeae3a58e3
This CL also updates the blend tests to use sk_FragColor instead of returning a half4, as the Metal backend assumes that a fragment processor's `main` will return void and always synthesizes a `return *_out;` at the end. (context link: https://osscs.corp.google.com/android/platform/superproject/+/master:external/skqp/src/sksl/SkSLMetalCodeGenerator.cpp;l=803;drc=842d31b14159626054e01dd32826563a8f4214bf ) BYPASS_INCLUSIVE_LANGUAGE_REASON=see http://b/168134166 Change-Id: I330a456bf25ee72d3a29c59cd624625378ae80a0 Bug: skia:10649, skia:10757, skia:10758, skia:10759, skia:10760, skia:10761, skia:10762 Reviewed-on: https://skia-review.googlesource.com/c/skia/+/319409 Commit-Queue: John Stiles <johnstiles@google.com> Reviewed-by: Ethan Nicholas <ethannicholas@google.com>
45 lines
1.7 KiB
GLSL
45 lines
1.7 KiB
GLSL
#version 400
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out vec4 sk_FragColor;
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in vec4 src, dst;
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float _blend_color_luminance(vec3 color) {
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return dot(vec3(0.30000001192092896, 0.5899999737739563, 0.10999999940395355), color);
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}
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vec3 _blend_set_color_luminance(vec3 hueSatColor, float alpha, vec3 lumColor) {
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float _4_blend_color_luminance;
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{
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_4_blend_color_luminance = dot(vec3(0.30000001192092896, 0.5899999737739563, 0.10999999940395355), lumColor);
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}
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float lum = _4_blend_color_luminance;
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float _5_blend_color_luminance;
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{
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_5_blend_color_luminance = dot(vec3(0.30000001192092896, 0.5899999737739563, 0.10999999940395355), hueSatColor);
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}
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vec3 result = (lum - _5_blend_color_luminance) + hueSatColor;
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float minComp = min(min(result.x, result.y), result.z);
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float maxComp = max(max(result.x, result.y), result.z);
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if (minComp < 0.0 && lum != minComp) {
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result = lum + ((result - lum) * lum) / (lum - minComp);
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}
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return maxComp > alpha && maxComp != lum ? lum + ((result - lum) * (alpha - lum)) / (maxComp - lum) : result;
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}
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vec4 blend_luminosity(vec4 src, vec4 dst) {
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float alpha = dst.w * src.w;
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vec3 sda = src.xyz * dst.w;
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vec3 dsa = dst.xyz * src.w;
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return vec4((((_blend_set_color_luminance(dsa, alpha, sda) + dst.xyz) - dsa) + src.xyz) - sda, (src.w + dst.w) - alpha);
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}
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void main() {
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vec4 _0_blend_luminosity;
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{
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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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_0_blend_luminosity = vec4((((_blend_set_color_luminance(_3_dsa, _1_alpha, _2_sda) + dst.xyz) - _3_dsa) + src.xyz) - _2_sda, (src.w + dst.w) - _1_alpha);
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}
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sk_FragColor = _0_blend_luminosity;
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}
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