Merge "Remove gamma correction from color correction shader"

This commit is contained in:
Dan Stoza 2015-04-30 19:36:24 +00:00 committed by Gerrit Code Review
commit 08a7c79284

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@ -199,10 +199,8 @@ String8 ProgramCache::generateFragmentShader(const Key& needs) {
// un-premultiply if needed before linearization
fs << "gl_FragColor.rgb = gl_FragColor.rgb/gl_FragColor.a;";
}
fs << "gl_FragColor.rgb = pow(gl_FragColor.rgb, vec3(2.2));";
fs << "vec4 transformed = colorMatrix * vec4(gl_FragColor.rgb, 1);";
fs << "gl_FragColor.rgb = transformed.rgb/transformed.a;";
fs << "gl_FragColor.rgb = pow(gl_FragColor.rgb, vec3(1.0 / 2.2));";
if (!needs.isOpaque() && needs.isPremultiplied()) {
// and re-premultiply if needed after gamma correction
fs << "gl_FragColor.rgb = gl_FragColor.rgb*gl_FragColor.a;";