1cb93a386Sopenharmony_ci 2cb93a386Sopenharmony_ciout vec4 sk_FragColor; 3cb93a386Sopenharmony_ciuniform vec4 color; 4cb93a386Sopenharmony_civec4 blend_src_in_h4h4h4(vec4 src, vec4 dst) { 5cb93a386Sopenharmony_ci return src * dst.w; 6cb93a386Sopenharmony_ci} 7cb93a386Sopenharmony_civec4 blend_dst_in_h4h4h4(vec4 src, vec4 dst) { 8cb93a386Sopenharmony_ci return dst * src.w; 9cb93a386Sopenharmony_ci} 10cb93a386Sopenharmony_civec3 _blend_set_color_luminance_h3h3hh3(vec3 hueSatColor, float alpha, vec3 lumColor) { 11cb93a386Sopenharmony_ci float lum = dot(vec3(0.30000001192092896, 0.5899999737739563, 0.10999999940395355), lumColor); 12cb93a386Sopenharmony_ci vec3 result = (lum - dot(vec3(0.30000001192092896, 0.5899999737739563, 0.10999999940395355), hueSatColor)) + hueSatColor; 13cb93a386Sopenharmony_ci float minComp = min(min(result.x, result.y), result.z); 14cb93a386Sopenharmony_ci float maxComp = max(max(result.x, result.y), result.z); 15cb93a386Sopenharmony_ci if (minComp < 0.0 && lum != minComp) { 16cb93a386Sopenharmony_ci result = lum + (result - lum) * (lum / (lum - minComp)); 17cb93a386Sopenharmony_ci } 18cb93a386Sopenharmony_ci if (maxComp > alpha && maxComp != lum) { 19cb93a386Sopenharmony_ci return lum + ((result - lum) * (alpha - lum)) / (maxComp - lum); 20cb93a386Sopenharmony_ci } else { 21cb93a386Sopenharmony_ci return result; 22cb93a386Sopenharmony_ci } 23cb93a386Sopenharmony_ci} 24cb93a386Sopenharmony_civec3 _blend_set_color_saturation_helper_h3h3h(vec3 minMidMax, float sat) { 25cb93a386Sopenharmony_ci if (minMidMax.x < minMidMax.z) { 26cb93a386Sopenharmony_ci return vec3(0.0, (sat * (minMidMax.y - minMidMax.x)) / (minMidMax.z - minMidMax.x), sat); 27cb93a386Sopenharmony_ci } else { 28cb93a386Sopenharmony_ci return vec3(0.0); 29cb93a386Sopenharmony_ci } 30cb93a386Sopenharmony_ci} 31cb93a386Sopenharmony_civec3 _blend_set_color_saturation_h3h3h3(vec3 hueLumColor, vec3 satColor) { 32cb93a386Sopenharmony_ci float sat = max(max(satColor.x, satColor.y), satColor.z) - min(min(satColor.x, satColor.y), satColor.z); 33cb93a386Sopenharmony_ci if (hueLumColor.x <= hueLumColor.y) { 34cb93a386Sopenharmony_ci if (hueLumColor.y <= hueLumColor.z) { 35cb93a386Sopenharmony_ci return _blend_set_color_saturation_helper_h3h3h(hueLumColor, sat); 36cb93a386Sopenharmony_ci } else if (hueLumColor.x <= hueLumColor.z) { 37cb93a386Sopenharmony_ci return _blend_set_color_saturation_helper_h3h3h(hueLumColor.xzy, sat).xzy; 38cb93a386Sopenharmony_ci } else { 39cb93a386Sopenharmony_ci return _blend_set_color_saturation_helper_h3h3h(hueLumColor.zxy, sat).yzx; 40cb93a386Sopenharmony_ci } 41cb93a386Sopenharmony_ci } else if (hueLumColor.x <= hueLumColor.z) { 42cb93a386Sopenharmony_ci return _blend_set_color_saturation_helper_h3h3h(hueLumColor.yxz, sat).yxz; 43cb93a386Sopenharmony_ci } else if (hueLumColor.y <= hueLumColor.z) { 44cb93a386Sopenharmony_ci return _blend_set_color_saturation_helper_h3h3h(hueLumColor.yzx, sat).zxy; 45cb93a386Sopenharmony_ci } else { 46cb93a386Sopenharmony_ci return _blend_set_color_saturation_helper_h3h3h(hueLumColor.zyx, sat).zyx; 47cb93a386Sopenharmony_ci } 48cb93a386Sopenharmony_ci} 49cb93a386Sopenharmony_civec4 blend_hue_h4h4h4(vec4 src, vec4 dst) { 50cb93a386Sopenharmony_ci float alpha = dst.w * src.w; 51cb93a386Sopenharmony_ci vec3 sda = src.xyz * dst.w; 52cb93a386Sopenharmony_ci vec3 dsa = dst.xyz * src.w; 53cb93a386Sopenharmony_ci return vec4((((_blend_set_color_luminance_h3h3hh3(_blend_set_color_saturation_h3h3h3(sda, dsa), alpha, dsa) + dst.xyz) - dsa) + src.xyz) - sda, (src.w + dst.w) - alpha); 54cb93a386Sopenharmony_ci} 55cb93a386Sopenharmony_cifloat singleuse_h() { 56cb93a386Sopenharmony_ci return 1.25; 57cb93a386Sopenharmony_ci} 58cb93a386Sopenharmony_cifloat add_hhh(float a, float b) { 59cb93a386Sopenharmony_ci float c = a + b; 60cb93a386Sopenharmony_ci return c; 61cb93a386Sopenharmony_ci} 62cb93a386Sopenharmony_cifloat mul_hhh(float a, float b) { 63cb93a386Sopenharmony_ci return a * b; 64cb93a386Sopenharmony_ci} 65cb93a386Sopenharmony_cifloat fma_hhhh(float a, float b, float c) { 66cb93a386Sopenharmony_ci return add_hhh(mul_hhh(a, b), c); 67cb93a386Sopenharmony_ci} 68cb93a386Sopenharmony_civoid main() { 69cb93a386Sopenharmony_ci sk_FragColor = vec4(fma_hhhh(color.x, color.y, color.z)); 70cb93a386Sopenharmony_ci sk_FragColor *= singleuse_h(); 71cb93a386Sopenharmony_ci sk_FragColor *= blend_src_in_h4h4h4(color.xxyy, color.zzww); 72cb93a386Sopenharmony_ci sk_FragColor *= blend_dst_in_h4h4h4(color.xxyy, color.zzww); 73cb93a386Sopenharmony_ci sk_FragColor *= blend_hue_h4h4h4(color, color.wwww); 74cb93a386Sopenharmony_ci sk_FragColor *= blend_hue_h4h4h4(color, color.wzyx); 75cb93a386Sopenharmony_ci} 76