2017-08-16 19:37:39 -04:00
|
|
|
// pathfinder/shaders/gles2/ecaa-resolve.fs.glsl
|
|
|
|
//
|
|
|
|
// Copyright (c) 2017 Mozilla Foundation
|
|
|
|
|
|
|
|
precision highp float;
|
|
|
|
|
|
|
|
uniform sampler2D uBGColor;
|
|
|
|
uniform sampler2D uFGColor;
|
2017-08-17 23:09:18 -04:00
|
|
|
uniform sampler2D uAAAlpha;
|
2017-08-16 19:37:39 -04:00
|
|
|
|
|
|
|
varying vec2 vTexCoord;
|
|
|
|
|
|
|
|
void main() {
|
|
|
|
vec4 bgColor = texture2D(uBGColor, vTexCoord);
|
|
|
|
vec4 fgColor = texture2D(uFGColor, vTexCoord);
|
2017-08-18 01:47:28 -04:00
|
|
|
float alpha = clamp(texture2D(uAAAlpha, vTexCoord).r, 0.0, 1.0);
|
2017-08-18 23:23:45 -04:00
|
|
|
gl_FragColor = mix(bgColor, fgColor, alpha);
|
2017-08-16 19:37:39 -04:00
|
|
|
}
|