| #version 100 |
| |
| uniform highp float u_skRTHeight; |
| precision mediump float; |
| uniform vec4 uColor_Stage0; |
| uniform vec4 uproxyRect_Stage1; |
| uniform float ucornerRadius_Stage1; |
| uniform float ublurRadius_Stage1; |
| uniform vec4 uinnerRect_Stage2; |
| uniform vec2 uradiusPlusHalf_Stage2; |
| uniform highp sampler2D uTextureSampler_0_Stage1; |
| void main() { |
| highp vec2 _sktmpCoord = gl_FragCoord.xy; |
| highp vec4 sk_FragCoord = vec4(_sktmpCoord.x, u_skRTHeight - _sktmpCoord.y, 1.0, 1.0); |
| vec4 outputColor_Stage0; |
| { |
| outputColor_Stage0 = uColor_Stage0; |
| } |
| vec4 output_Stage1; |
| { |
| vec2 translatedFragPos = sk_FragCoord.xy - uproxyRect_Stage1.xy; |
| float threshold = ucornerRadius_Stage1 + 2.0 * ublurRadius_Stage1; |
| vec2 middle = (uproxyRect_Stage1.zw - uproxyRect_Stage1.xy) - 2.0 * threshold; |
| if (translatedFragPos.x >= threshold && translatedFragPos.x < middle.x + threshold) { |
| translatedFragPos.x = threshold; |
| } else if (translatedFragPos.x >= middle.x + threshold) { |
| translatedFragPos.x -= middle.x - 1.0; |
| } |
| if (translatedFragPos.y > threshold && translatedFragPos.y < middle.y + threshold) { |
| translatedFragPos.y = threshold; |
| } else if (translatedFragPos.y >= middle.y + threshold) { |
| translatedFragPos.y -= middle.y - 1.0; |
| } |
| vec2 proxyDims = vec2(2.0 * threshold + 1.0); |
| vec2 texCoord = translatedFragPos / proxyDims; |
| output_Stage1 = texture2D(uTextureSampler_0_Stage1, texCoord); |
| } |
| vec4 output_Stage2; |
| { |
| vec2 dxy0 = uinnerRect_Stage2.xy - sk_FragCoord.xy; |
| vec2 dxy1 = sk_FragCoord.xy - uinnerRect_Stage2.zw; |
| vec2 dxy = max(max(dxy0, dxy1), 0.0); |
| float alpha = clamp(uradiusPlusHalf_Stage2.x - length(dxy), 0.0, 1.0); |
| alpha = 1.0 - alpha; |
| output_Stage2 = output_Stage1 * alpha; |
| } |
| { |
| gl_FragColor = outputColor_Stage0 * output_Stage2; |
| } |
| } |