| /* |
| * Copyright 2012 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 SkMergeImageFilter_DEFINED |
| #define SkMergeImageFilter_DEFINED |
| |
| #include "SkImageFilter.h" |
| |
| #include "SkXfermode.h" |
| |
| class SK_API SkMergeImageFilter : public SkImageFilter { |
| public: |
| virtual ~SkMergeImageFilter(); |
| |
| static SkImageFilter* Create(SkImageFilter* first, SkImageFilter* second, |
| SkXfermode::Mode mode = SkXfermode::kSrcOver_Mode, |
| const CropRect* cropRect = NULL) { |
| SkImageFilter* inputs[2] = { first, second }; |
| SkXfermode::Mode modes[2] = { mode, mode }; |
| return new SkMergeImageFilter(inputs, 2, modes, cropRect); |
| } |
| |
| static SkImageFilter* Create(SkImageFilter* filters[], int count, |
| const SkXfermode::Mode modes[] = NULL, |
| const CropRect* cropRect = NULL) { |
| return new SkMergeImageFilter(filters, count, modes, cropRect); |
| } |
| |
| SK_TO_STRING_OVERRIDE() |
| SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkMergeImageFilter) |
| |
| protected: |
| void flatten(SkWriteBuffer&) const override; |
| bool onFilterImage(Proxy*, const SkBitmap& src, const Context&, SkBitmap* result, |
| SkIPoint* loc) const override; |
| |
| private: |
| SkMergeImageFilter(SkImageFilter* filters[], int count, const SkXfermode::Mode modes[], |
| const CropRect* cropRect); |
| |
| uint8_t* fModes; // SkXfermode::Mode |
| |
| // private storage, to avoid dynamically allocating storage for our copy |
| // of the modes (unless the count is so large we can't fit). |
| intptr_t fStorage[16]; |
| |
| void initAllocModes(); |
| void initModes(const SkXfermode::Mode []); |
| |
| typedef SkImageFilter INHERITED; |
| }; |
| |
| #endif |