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1 /* | 1 /* |
2 * Copyright 2012 The Android Open Source Project | 2 * Copyright 2012 The Android Open Source Project |
3 * | 3 * |
4 * Use of this source code is governed by a BSD-style license that can be | 4 * Use of this source code is governed by a BSD-style license that can be |
5 * found in the LICENSE file. | 5 * found in the LICENSE file. |
6 */ | 6 */ |
7 | 7 |
8 #ifndef SkMatrixConvolutionImageFilter_DEFINED | 8 #ifndef SkMatrixConvolutionImageFilter_DEFINED |
9 #define SkMatrixConvolutionImageFilter_DEFINED | 9 #define SkMatrixConvolutionImageFilter_DEFINED |
10 | 10 |
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40 convolution. This can be used to center the kernel | 40 convolution. This can be used to center the kernel |
41 over the image (e.g., a 3x3 kernel should have a | 41 over the image (e.g., a 3x3 kernel should have a |
42 target of {1, 1}). | 42 target of {1, 1}). |
43 @param tileMode How accesses outside the image are treated. (@see | 43 @param tileMode How accesses outside the image are treated. (@see |
44 TileMode). | 44 TileMode). |
45 @param convolveAlpha If true, all channels are convolved. If false, | 45 @param convolveAlpha If true, all channels are convolved. If false, |
46 only the RGB channels are convolved, and | 46 only the RGB channels are convolved, and |
47 alpha is copied from the source image. | 47 alpha is copied from the source image. |
48 @param input The input image filter. If NULL, the src bitmap | 48 @param input The input image filter. If NULL, the src bitmap |
49 passed to filterImage() is used instead. | 49 passed to filterImage() is used instead. |
| 50 @param cropRect The rectangle to which the output processing will be
limited. |
50 */ | 51 */ |
51 | 52 |
52 SkMatrixConvolutionImageFilter(const SkISize& kernelSize, const SkScalar* ke
rnel, SkScalar gain, SkScalar bias, const SkIPoint& target, TileMode tileMode, b
ool convolveAlpha, SkImageFilter* input = NULL); | 53 SkMatrixConvolutionImageFilter(const SkISize& kernelSize, |
| 54 const SkScalar* kernel, |
| 55 SkScalar gain, |
| 56 SkScalar bias, |
| 57 const SkIPoint& target, |
| 58 TileMode tileMode, |
| 59 bool convolveAlpha, |
| 60 SkImageFilter* input = NULL, |
| 61 const CropRect* cropRect = NULL); |
53 virtual ~SkMatrixConvolutionImageFilter(); | 62 virtual ~SkMatrixConvolutionImageFilter(); |
54 | 63 |
55 SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkMatrixConvolutionImage
Filter) | 64 SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkMatrixConvolutionImage
Filter) |
56 | 65 |
57 protected: | 66 protected: |
58 SkMatrixConvolutionImageFilter(SkFlattenableReadBuffer& buffer); | 67 SkMatrixConvolutionImageFilter(SkFlattenableReadBuffer& buffer); |
59 virtual void flatten(SkFlattenableWriteBuffer&) const SK_OVERRIDE; | 68 virtual void flatten(SkFlattenableWriteBuffer&) const SK_OVERRIDE; |
60 | 69 |
61 virtual bool onFilterImage(Proxy*, const SkBitmap& src, const SkMatrix&, | 70 virtual bool onFilterImage(Proxy*, const SkBitmap& src, const SkMatrix&, |
62 SkBitmap* result, SkIPoint* loc) SK_OVERRIDE; | 71 SkBitmap* result, SkIPoint* loc) SK_OVERRIDE; |
63 | 72 |
64 #if SK_SUPPORT_GPU | 73 #if SK_SUPPORT_GPU |
65 virtual bool asNewEffect(GrEffectRef** effect, GrTexture*, const SkMatrix& m
atrix) const SK_OVERRIDE; | 74 virtual bool asNewEffect(GrEffectRef** effect, |
| 75 GrTexture*, |
| 76 const SkMatrix& matrix, |
| 77 const SkIRect& bounds) const SK_OVERRIDE; |
66 #endif | 78 #endif |
67 | 79 |
68 private: | 80 private: |
69 SkISize fKernelSize; | 81 SkISize fKernelSize; |
70 SkScalar* fKernel; | 82 SkScalar* fKernel; |
71 SkScalar fGain; | 83 SkScalar fGain; |
72 SkScalar fBias; | 84 SkScalar fBias; |
73 SkIPoint fTarget; | 85 SkIPoint fTarget; |
74 TileMode fTileMode; | 86 TileMode fTileMode; |
75 bool fConvolveAlpha; | 87 bool fConvolveAlpha; |
76 typedef SkImageFilter INHERITED; | 88 typedef SkImageFilter INHERITED; |
77 | 89 |
78 template <class PixelFetcher, bool convolveAlpha> | 90 template <class PixelFetcher, bool convolveAlpha> |
79 void filterPixels(const SkBitmap& src, SkBitmap* result, const SkIRect& rect
); | 91 void filterPixels(const SkBitmap& src, |
| 92 SkBitmap* result, |
| 93 const SkIRect& rect, |
| 94 const SkIRect& bounds); |
80 template <class PixelFetcher> | 95 template <class PixelFetcher> |
81 void filterPixels(const SkBitmap& src, SkBitmap* result, const SkIRect& rect
); | 96 void filterPixels(const SkBitmap& src, |
82 void filterInteriorPixels(const SkBitmap& src, SkBitmap* result, const SkIRe
ct& rect); | 97 SkBitmap* result, |
83 void filterBorderPixels(const SkBitmap& src, SkBitmap* result, const SkIRect
& rect); | 98 const SkIRect& rect, |
| 99 const SkIRect& bounds); |
| 100 void filterInteriorPixels(const SkBitmap& src, |
| 101 SkBitmap* result, |
| 102 const SkIRect& rect, |
| 103 const SkIRect& bounds); |
| 104 void filterBorderPixels(const SkBitmap& src, |
| 105 SkBitmap* result, |
| 106 const SkIRect& rect, |
| 107 const SkIRect& bounds); |
84 }; | 108 }; |
85 | 109 |
86 #endif | 110 #endif |
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