| egdaniel | 0063a9b | 2015-01-15 10:52:32 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2015 Google Inc. |
| 3 | * |
| 4 | * Use of this source code is governed by a BSD-style license that can be |
| 5 | * found in the LICENSE file. |
| 6 | */ |
| 7 | |
| 8 | #ifndef GrCustomXfermode_DEFINED |
| 9 | #define GrCustomXfermode_DEFINED |
| 10 | |
| 11 | #include "SkXfermode.h" |
| 12 | |
| 13 | class GrFragmentProcessor; |
| 14 | class GrTexture; |
| 15 | |
| 16 | /** |
| 17 | * Custom Xfer modes are used for blending when the blend mode cannot be represented using blend |
| 18 | * coefficients. It is assumed that all blending is done within the processors' emit code. For each |
| 19 | * blend mode there should be a matching fragment processor (used when blending with a background |
| 20 | * texture) and xfer processor. |
| 21 | */ |
| 22 | namespace GrCustomXfermode { |
| 23 | bool IsSupportedMode(SkXfermode::Mode mode); |
| 24 | |
| 25 | GrFragmentProcessor* CreateFP(SkXfermode::Mode mode, GrTexture* background); |
| 26 | }; |
| 27 | |
| 28 | #endif |