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1 /* | 1 /* |
2 * Copyright (C) 2008 Alex Mathews <possessedpenguinbob@gmail.com> | 2 * Copyright (C) 2008 Alex Mathews <possessedpenguinbob@gmail.com> |
3 * Copyright (C) 2009 Dirk Schulze <krit@webkit.org> | 3 * Copyright (C) 2009 Dirk Schulze <krit@webkit.org> |
4 * Copyright (C) Research In Motion Limited 2010. All rights reserved. | 4 * Copyright (C) Research In Motion Limited 2010. All rights reserved. |
5 * Copyright (C) 2013 Google Inc. All rights reserved. | 5 * Copyright (C) 2013 Google Inc. All rights reserved. |
6 * | 6 * |
7 * This library is free software; you can redistribute it and/or | 7 * This library is free software; you can redistribute it and/or |
8 * modify it under the terms of the GNU Library General Public | 8 * modify it under the terms of the GNU Library General Public |
9 * License as published by the Free Software Foundation; either | 9 * License as published by the Free Software Foundation; either |
10 * version 2 of the License, or (at your option) any later version. | 10 * version 2 of the License, or (at your option) any later version. |
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60 FilterEffect* inputEffect(unsigned) const; | 60 FilterEffect* inputEffect(unsigned) const; |
61 unsigned numberOfEffectInputs() const { return m_inputEffects.size(); } | 61 unsigned numberOfEffectInputs() const { return m_inputEffects.size(); } |
62 | 62 |
63 inline bool hasImageFilter() const | 63 inline bool hasImageFilter() const |
64 { | 64 { |
65 return m_imageFilters[0] || m_imageFilters[1] || m_imageFilters[2] || m_
imageFilters[3]; | 65 return m_imageFilters[0] || m_imageFilters[1] || m_imageFilters[2] || m_
imageFilters[3]; |
66 } | 66 } |
67 | 67 |
68 IntRect absolutePaintRect() const { return m_absolutePaintRect; } | 68 IntRect absolutePaintRect() const { return m_absolutePaintRect; } |
69 | 69 |
70 FloatRect maxEffectRect() const { return m_maxEffectRect; } | 70 // Clipped primitive subregion in the coordinate space of the target. |
| 71 FloatRect absoluteBounds() const; |
71 | 72 |
72 virtual sk_sp<SkImageFilter> createImageFilter(); | 73 virtual sk_sp<SkImageFilter> createImageFilter(); |
73 virtual sk_sp<SkImageFilter> createImageFilterWithoutValidation(); | 74 virtual sk_sp<SkImageFilter> createImageFilterWithoutValidation(); |
74 | 75 |
75 // Mapping a rect forwards determines which which destination pixels a | 76 // Mapping a rect forwards determines which which destination pixels a |
76 // given source rect would affect. Mapping a rect backwards determines | 77 // given source rect would affect. Mapping a rect backwards determines |
77 // which pixels from the source rect would be required to fill a given | 78 // which pixels from the source rect would be required to fill a given |
78 // destination rect. Note that these are not necessarily the inverse of | 79 // destination rect. Note that these are not necessarily the inverse of |
79 // each other. For example, for FEGaussianBlur, they are the same | 80 // each other. For example, for FEGaussianBlur, they are the same |
80 // transformation. | 81 // transformation. |
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98 | 99 |
99 Filter* getFilter() { return m_filter; } | 100 Filter* getFilter() { return m_filter; } |
100 const Filter* getFilter() const { return m_filter; } | 101 const Filter* getFilter() const { return m_filter; } |
101 | 102 |
102 bool clipsToBounds() const { return m_clipsToBounds; } | 103 bool clipsToBounds() const { return m_clipsToBounds; } |
103 void setClipsToBounds(bool value) { m_clipsToBounds = value; } | 104 void setClipsToBounds(bool value) { m_clipsToBounds = value; } |
104 | 105 |
105 ColorSpace operatingColorSpace() const { return m_operatingColorSpace; } | 106 ColorSpace operatingColorSpace() const { return m_operatingColorSpace; } |
106 virtual void setOperatingColorSpace(ColorSpace colorSpace) { m_operatingColo
rSpace = colorSpace; } | 107 virtual void setOperatingColorSpace(ColorSpace colorSpace) { m_operatingColo
rSpace = colorSpace; } |
107 | 108 |
108 FloatRect determineMaximumEffectRect(); | |
109 | |
110 virtual FloatRect determineAbsolutePaintRect(const FloatRect& requestedAbsol
uteRect); | 109 virtual FloatRect determineAbsolutePaintRect(const FloatRect& requestedAbsol
uteRect); |
111 virtual bool affectsTransparentPixels() { return false; } | 110 virtual bool affectsTransparentPixels() { return false; } |
112 | 111 |
113 // Return false if the filter will only operate correctly on valid RGBA valu
es, with | 112 // Return false if the filter will only operate correctly on valid RGBA valu
es, with |
114 // alpha in [0,255] and each color component in [0, alpha]. | 113 // alpha in [0,255] and each color component in [0, alpha]. |
115 virtual bool mayProduceInvalidPreMultipliedPixels() { return false; } | 114 virtual bool mayProduceInvalidPreMultipliedPixels() { return false; } |
116 | 115 |
117 SkImageFilter* getImageFilter(ColorSpace, bool requiresPMColorValidation) co
nst; | 116 SkImageFilter* getImageFilter(ColorSpace, bool requiresPMColorValidation) co
nst; |
118 void setImageFilter(ColorSpace, bool requiresPMColorValidation, sk_sp<SkImag
eFilter>); | 117 void setImageFilter(ColorSpace, bool requiresPMColorValidation, sk_sp<SkImag
eFilter>); |
119 | 118 |
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131 | 130 |
132 SkImageFilter::CropRect getCropRect() const; | 131 SkImageFilter::CropRect getCropRect() const; |
133 | 132 |
134 void addAbsolutePaintRect(const FloatRect& absolutePaintRect); | 133 void addAbsolutePaintRect(const FloatRect& absolutePaintRect); |
135 | 134 |
136 private: | 135 private: |
137 FilterEffectVector m_inputEffects; | 136 FilterEffectVector m_inputEffects; |
138 | 137 |
139 IntRect m_absolutePaintRect; | 138 IntRect m_absolutePaintRect; |
140 | 139 |
141 // The maximum size of a filter primitive. In SVG this is the primitive subr
egion in absolute coordinate space. | |
142 // The absolute paint rect should never be bigger than m_maxEffectRect. | |
143 FloatRect m_maxEffectRect; | |
144 Member<Filter> m_filter; | 140 Member<Filter> m_filter; |
145 | 141 |
146 // The following member variables are SVG specific and will move to LayoutSV
GResourceFilterPrimitive. | 142 // The following member variables are SVG specific and will move to LayoutSV
GResourceFilterPrimitive. |
147 // See bug https://bugs.webkit.org/show_bug.cgi?id=45614. | 143 // See bug https://bugs.webkit.org/show_bug.cgi?id=45614. |
148 | 144 |
149 // The subregion of a filter primitive according to the SVG Filter specifica
tion in local coordinates. | 145 // The subregion of a filter primitive according to the SVG Filter specifica
tion in local coordinates. |
150 // This is SVG specific and needs to move to LayoutSVGResourceFilterPrimitiv
e. | 146 // This is SVG specific and needs to move to LayoutSVGResourceFilterPrimitiv
e. |
151 FloatRect m_filterPrimitiveSubregion; | 147 FloatRect m_filterPrimitiveSubregion; |
152 | 148 |
153 // Should the effect clip to its primitive region, or expand to use the comb
ined region of its inputs. | 149 // Should the effect clip to its primitive region, or expand to use the comb
ined region of its inputs. |
154 bool m_clipsToBounds; | 150 bool m_clipsToBounds; |
155 | 151 |
156 bool m_originTainted; | 152 bool m_originTainted; |
157 | 153 |
158 ColorSpace m_operatingColorSpace; | 154 ColorSpace m_operatingColorSpace; |
159 | 155 |
160 sk_sp<SkImageFilter> m_imageFilters[4]; | 156 sk_sp<SkImageFilter> m_imageFilters[4]; |
161 }; | 157 }; |
162 | 158 |
163 } // namespace blink | 159 } // namespace blink |
164 | 160 |
165 #endif // FilterEffect_h | 161 #endif // FilterEffect_h |
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