SkMorphologyImageFilter.h revision e16efc1882ab34a0bb3ae361a2d37f840044cf87
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 9#ifndef SkMorphologyImageFilter_DEFINED 10#define SkMorphologyImageFilter_DEFINED 11 12#include "SkSingleInputImageFilter.h" 13#include "SkSize.h" 14 15class SK_API SkMorphologyImageFilter : public SkSingleInputImageFilter { 16public: 17 SkMorphologyImageFilter(int radiusX, int radiusY, SkImageFilter* input); 18 19protected: 20 SkMorphologyImageFilter(SkFlattenableReadBuffer& buffer); 21 virtual void flatten(SkFlattenableWriteBuffer&) const SK_OVERRIDE; 22#if SK_SUPPORT_GPU 23 virtual bool canFilterImageGPU() const SK_OVERRIDE { return true; } 24#endif 25 26 SkISize radius() const { return fRadius; } 27 28private: 29 SkISize fRadius; 30 typedef SkSingleInputImageFilter INHERITED; 31}; 32 33class SK_API SkDilateImageFilter : public SkMorphologyImageFilter { 34public: 35 SkDilateImageFilter(int radiusX, int radiusY, SkImageFilter* input = NULL) 36 : INHERITED(radiusX, radiusY, input) {} 37 38 virtual bool onFilterImage(Proxy*, const SkBitmap& src, const SkMatrix&, 39 SkBitmap* result, SkIPoint* offset) SK_OVERRIDE; 40#if SK_SUPPORT_GPU 41 virtual GrTexture* filterImageGPU(Proxy* proxy, GrTexture* src, 42 const SkRect& rect) SK_OVERRIDE; 43#endif 44 45 SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkDilateImageFilter) 46 47protected: 48 SkDilateImageFilter(SkFlattenableReadBuffer& buffer) : INHERITED(buffer) {} 49 50private: 51 typedef SkMorphologyImageFilter INHERITED; 52}; 53 54class SK_API SkErodeImageFilter : public SkMorphologyImageFilter { 55public: 56 SkErodeImageFilter(int radiusX, int radiusY, SkImageFilter* input = NULL) 57 : INHERITED(radiusX, radiusY, input) {} 58 59 virtual bool onFilterImage(Proxy*, const SkBitmap& src, const SkMatrix&, 60 SkBitmap* result, SkIPoint* offset) SK_OVERRIDE; 61#if SK_SUPPORT_GPU 62 virtual GrTexture* filterImageGPU(Proxy* proxy, GrTexture* src, 63 const SkRect& rect) SK_OVERRIDE; 64#endif 65 66 SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkErodeImageFilter) 67 68protected: 69 SkErodeImageFilter(SkFlattenableReadBuffer& buffer) : INHERITED(buffer) {} 70 71private: 72 typedef SkMorphologyImageFilter INHERITED; 73}; 74 75#endif 76