| |
| const float sk_PrivkGuardedDivideEpsilon = false ? 1e-08 : 0.0; |
| out vec4 sk_FragColor; |
| in vec4 src; |
| in vec4 dst; |
| float color_burn_component_Qhh2h2(vec2 s, vec2 d); |
| float color_dodge_component_Qhh2h2(vec2 s, vec2 d); |
| float soft_light_component_Qhh2h2(vec2 s, vec2 d); |
| float color_burn_component_Qhh2h2(vec2 s, vec2 d) { |
| if (d.y == d.x) { |
| return (s.y * d.y + s.x * (1.0 - d.y)) + d.x * (1.0 - s.y); |
| } else if (s.x == 0.0) { |
| return d.x * (1.0 - s.y); |
| } else { |
| float delta = max(0.0, d.y - ((d.y - d.x) * s.y) / (s.x + sk_PrivkGuardedDivideEpsilon)); |
| return (delta * s.y + s.x * (1.0 - d.y)) + d.x * (1.0 - s.y); |
| } |
| } |
| float color_dodge_component_Qhh2h2(vec2 s, vec2 d) { |
| if (d.x == 0.0) { |
| return s.x * (1.0 - d.y); |
| } else { |
| float delta = s.y - s.x; |
| if (delta == 0.0) { |
| return (s.y * d.y + s.x * (1.0 - d.y)) + d.x * (1.0 - s.y); |
| } else { |
| delta = min(d.y, (d.x * s.y) / (delta + sk_PrivkGuardedDivideEpsilon)); |
| return (delta * s.y + s.x * (1.0 - d.y)) + d.x * (1.0 - s.y); |
| } |
| } |
| } |
| float soft_light_component_Qhh2h2(vec2 s, vec2 d) { |
| if (2.0 * s.x <= s.y) { |
| return (((d.x * d.x) * (s.y - 2.0 * s.x)) / (d.y + sk_PrivkGuardedDivideEpsilon) + (1.0 - d.y) * s.x) + d.x * ((-s.y + 2.0 * s.x) + 1.0); |
| } else if (4.0 * d.x <= d.y) { |
| float DSqd = d.x * d.x; |
| float DCub = DSqd * d.x; |
| float DaSqd = d.y * d.y; |
| float DaCub = DaSqd * d.y; |
| return (((DaSqd * (s.x - d.x * ((3.0 * s.y - 6.0 * s.x) - 1.0)) + ((12.0 * d.y) * DSqd) * (s.y - 2.0 * s.x)) - (16.0 * DCub) * (s.y - 2.0 * s.x)) - DaCub * s.x) / (DaSqd + sk_PrivkGuardedDivideEpsilon); |
| } else { |
| return ((d.x * ((s.y - 2.0 * s.x) + 1.0) + s.x) - sqrt(d.y * d.x) * (s.y - 2.0 * s.x)) - d.y * s.x; |
| } |
| } |
| void main() { |
| sk_FragColor = vec4(color_dodge_component_Qhh2h2(src.xw, dst.xw), color_dodge_component_Qhh2h2(src.yw, dst.yw), color_dodge_component_Qhh2h2(src.zw, dst.zw), src.w + (1.0 - src.w) * dst.w); |
| sk_FragColor = vec4(color_burn_component_Qhh2h2(src.xw, dst.xw), color_burn_component_Qhh2h2(src.yw, dst.yw), color_burn_component_Qhh2h2(src.zw, dst.zw), src.w + (1.0 - src.w) * dst.w); |
| sk_FragColor = dst.w == 0.0 ? src : vec4(soft_light_component_Qhh2h2(src.xw, dst.xw), soft_light_component_Qhh2h2(src.yw, dst.yw), soft_light_component_Qhh2h2(src.zw, dst.zw), src.w + (1.0 - src.w) * dst.w); |
| } |