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 virtual ~SkMergeImageFilter(); 18 19 static SkMergeImageFilter* Create(SkImageFilter* first, SkImageFilter* second, 20 SkXfermode::Mode mode = SkXfermode::kSrcOver_Mode, 21 const CropRect* cropRect = NULL) { 22 return SkNEW_ARGS(SkMergeImageFilter, (first, second, mode, cropRect)); 23 } 24 static SkMergeImageFilter* Create(SkImageFilter* filters[], int count, 25 const SkXfermode::Mode modes[] = NULL, 26 const CropRect* cropRect = NULL) { 27 return SkNEW_ARGS(SkMergeImageFilter, (filters, count, modes, cropRect)); 28 } 29 30 SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkMergeImageFilter) 31 32 protected: 33 SkMergeImageFilter(SkImageFilter* first, SkImageFilter* second, 34 SkXfermode::Mode = SkXfermode::kSrcOver_Mode, 35 const CropRect* cropRect = NULL); 36 SkMergeImageFilter(SkImageFilter* filters[], int count, 37 const SkXfermode::Mode modes[] = NULL, 38 const CropRect* cropRect = NULL); 39 explicit SkMergeImageFilter(SkReadBuffer& buffer); 40 virtual void flatten(SkWriteBuffer&) const SK_OVERRIDE; 41 42 virtual bool onFilterImage(Proxy*, const SkBitmap& src, const Context&, 43 SkBitmap* result, SkIPoint* loc) const SK_OVERRIDE; 44 45 private: 46 uint8_t* fModes; // SkXfermode::Mode 47 48 // private storage, to avoid dynamically allocating storage for our copy 49 // of the modes (unless the count is so large we can't fit). 50 intptr_t fStorage[16]; 51 52 void initAllocModes(); 53 void initModes(const SkXfermode::Mode []); 54 55 typedef SkImageFilter INHERITED; 56 }; 57 58 #endif 59
