| /* |
| * Copyright 2015 Google Inc. |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| #ifndef GrXfermodeFragmentProcessor_DEFINED |
| #define GrXfermodeFragmentProcessor_DEFINED |
| |
| #include "SkXfermode.h" |
| |
| class GrFragmentProcessor; |
| |
| namespace GrXfermodeFragmentProcessor { |
| /** The color input to the returned processor is treated as the src and the passed in processor |
| is the dst. */ |
| const GrFragmentProcessor* CreateFromDstProcessor(const GrFragmentProcessor* dst, |
| SkXfermode::Mode mode); |
| |
| /** The color input to the returned processor is treated as the dst and the passed in processor |
| is the src. */ |
| const GrFragmentProcessor* CreateFromSrcProcessor(const GrFragmentProcessor* src, |
| SkXfermode::Mode mode); |
| |
| /** Takes the input color, which is assumed to be unpremultiplied, passes it as an opaque color |
| to both src and dst. The outputs of a src and dst are blended using mode and the original |
| input's alpha is applied to the blended color to produce a premul output. */ |
| const GrFragmentProcessor* CreateFromTwoProcessors(const GrFragmentProcessor* src, |
| const GrFragmentProcessor* dst, |
| SkXfermode::Mode mode); |
| }; |
| |
| #endif |