| /* |
| * Copyright 2013 The Android Open Source Project |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| #ifndef SkXfermodeImageFilter_DEFINED |
| #define SkXfermodeImageFilter_DEFINED |
| |
| #include "SkImageFilter.h" |
| |
| class SkBitmap; |
| class SkXfermode; |
| |
| class SK_API SkXfermodeImageFilter : public SkImageFilter { |
| /** |
| * This filter takes an xfermode, and uses it to composite the foreground |
| * over the background. If foreground or background is NULL, the input |
| * bitmap (src) is used instead. |
| */ |
| |
| public: |
| virtual ~SkXfermodeImageFilter(); |
| |
| static SkXfermodeImageFilter* Create(SkXfermode* mode, SkImageFilter* background, |
| SkImageFilter* foreground = NULL, |
| const CropRect* cropRect = NULL) { |
| return SkNEW_ARGS(SkXfermodeImageFilter, (mode, background, foreground, cropRect)); |
| } |
| |
| SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkXfermodeImageFilter) |
| |
| virtual bool onFilterImage(Proxy* proxy, |
| const SkBitmap& src, |
| const Context& ctx, |
| SkBitmap* dst, |
| SkIPoint* offset) const SK_OVERRIDE; |
| #if SK_SUPPORT_GPU |
| virtual bool canFilterImageGPU() const SK_OVERRIDE; |
| virtual bool filterImageGPU(Proxy* proxy, const SkBitmap& src, const Context& ctx, |
| SkBitmap* result, SkIPoint* offset) const SK_OVERRIDE; |
| #endif |
| |
| protected: |
| SkXfermodeImageFilter(SkXfermode* mode, SkImageFilter* background, |
| SkImageFilter* foreground, const CropRect* cropRect); |
| explicit SkXfermodeImageFilter(SkReadBuffer& buffer); |
| virtual void flatten(SkWriteBuffer&) const SK_OVERRIDE; |
| |
| private: |
| SkXfermode* fMode; |
| typedef SkImageFilter INHERITED; |
| }; |
| |
| #endif |