1 /* 2 * Copyright 2012 The Android Open Source Project 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 SkMergeImageFilter_DEFINED 9 #define SkMergeImageFilter_DEFINED 10 11 #include "SkImageFilter.h" 12 13 #include "SkXfermode.h" 14 15 class SK_API SkMergeImageFilter : public SkImageFilter { 16 public: 17 SkMergeImageFilter(SkImageFilter* first, SkImageFilter* second, 18 SkXfermode::Mode = SkXfermode::kSrcOver_Mode, 19 const CropRect* cropRect = NULL); 20 SkMergeImageFilter(SkImageFilter* filters[], int count, 21 const SkXfermode::Mode modes[] = NULL, 22 const CropRect* cropRect = NULL); 23 virtual ~SkMergeImageFilter(); 24 25 SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkMergeImageFilter) 26 27 protected: 28 SkMergeImageFilter(SkFlattenableReadBuffer& buffer); 29 virtual void flatten(SkFlattenableWriteBuffer&) const SK_OVERRIDE; 30 31 virtual bool onFilterImage(Proxy*, const SkBitmap& src, const SkMatrix&, 32 SkBitmap* result, SkIPoint* loc) SK_OVERRIDE; 33 virtual bool onFilterBounds(const SkIRect&, const SkMatrix&, SkIRect*) SK_OVERRIDE; 34 35 private: 36 uint8_t* fModes; // SkXfermode::Mode 37 38 // private storage, to avoid dynamically allocating storage for our copy 39 // of the modes (unless the count is so large we can't fit). 40 intptr_t fStorage[16]; 41 42 void initAllocModes(); 43 void initModes(const SkXfermode::Mode []); 44 45 typedef SkImageFilter INHERITED; 46 }; 47 48 #endif 49
