1 /* 2 * Copyright 2008 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 SkKernel33MaskFilter_DEFINED 9 #define SkKernel33MaskFilter_DEFINED 10 11 #include "SkMaskFilter.h" 12 13 class SK_API SkKernel33ProcMaskFilter : public SkMaskFilter { 14 public: 15 SkKernel33ProcMaskFilter(unsigned percent256 = 256) 16 : fPercent256(percent256) {} 17 18 virtual uint8_t computeValue(uint8_t* const* srcRows) const = 0; 19 20 virtual SkMask::Format getFormat() const SK_OVERRIDE; 21 virtual bool filterMask(SkMask*, const SkMask&, const SkMatrix&, 22 SkIPoint*) const SK_OVERRIDE; 23 24 SkDEVCODE(virtual void toString(SkString* str) const SK_OVERRIDE;) 25 26 protected: 27 SkKernel33ProcMaskFilter(SkFlattenableReadBuffer& rb); 28 virtual void flatten(SkFlattenableWriteBuffer&) const SK_OVERRIDE; 29 30 private: 31 int fPercent256; 32 33 typedef SkMaskFilter INHERITED; 34 }; 35 36 /////////////////////////////////////////////////////////////////////////////// 37 38 class SK_API SkKernel33MaskFilter : public SkKernel33ProcMaskFilter { 39 public: 40 SkKernel33MaskFilter(const int coeff[3][3], int shift, int percent256 = 256) 41 : SkKernel33ProcMaskFilter(percent256) { 42 memcpy(fKernel, coeff, 9 * sizeof(int)); 43 fShift = shift; 44 } 45 46 // override from SkKernel33ProcMaskFilter 47 virtual uint8_t computeValue(uint8_t* const* srcRows) const SK_OVERRIDE; 48 49 SkDEVCODE(virtual void toString(SkString* str) const SK_OVERRIDE;) 50 SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkKernel33MaskFilter) 51 52 private: 53 int fKernel[3][3]; 54 int fShift; 55 56 SkKernel33MaskFilter(SkFlattenableReadBuffer& rb); 57 virtual void flatten(SkFlattenableWriteBuffer&) const SK_OVERRIDE; 58 59 typedef SkKernel33ProcMaskFilter INHERITED; 60 }; 61 62 #endif 63
