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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) 2012 University of Szeged | 5 * Copyright (C) 2012 University of Szeged |
6 * Copyright (C) 2013 Google Inc. All rights reserved. | 6 * Copyright (C) 2013 Google Inc. All rights reserved. |
7 * | 7 * |
8 * This library is free software; you can redistribute it and/or | 8 * This library is free software; you can redistribute it and/or |
9 * modify it under the terms of the GNU Library General Public | 9 * modify it under the terms of the GNU Library General Public |
10 * License as published by the Free Software Foundation; either | 10 * License as published by the Free Software Foundation; either |
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41 FilterEffect::~FilterEffect() | 41 FilterEffect::~FilterEffect() |
42 { | 42 { |
43 } | 43 } |
44 | 44 |
45 DEFINE_TRACE(FilterEffect) | 45 DEFINE_TRACE(FilterEffect) |
46 { | 46 { |
47 visitor->trace(m_inputEffects); | 47 visitor->trace(m_inputEffects); |
48 visitor->trace(m_filter); | 48 visitor->trace(m_filter); |
49 } | 49 } |
50 | 50 |
51 FloatRect FilterEffect::absoluteBounds() const | |
52 { | |
53 FloatRect computedBounds = getFilter()->filterRegion(); | |
pdr.
2016/09/08 20:46:12
Should we clip/intersect with the filter region he
fs
2016/09/08 21:08:11
For the same reason stated in SVGFEImage, it doesn
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54 if (!filterPrimitiveSubregion().isEmpty()) | |
55 computedBounds.intersect(filterPrimitiveSubregion()); | |
56 return getFilter()->mapLocalRectToAbsoluteRect(computedBounds); | |
57 } | |
58 | |
51 FloatRect FilterEffect::determineAbsolutePaintRect(const FloatRect& originalRequ estedRect) | 59 FloatRect FilterEffect::determineAbsolutePaintRect(const FloatRect& originalRequ estedRect) |
52 { | 60 { |
53 FloatRect requestedRect = originalRequestedRect; | 61 FloatRect requestedRect = originalRequestedRect; |
54 // Filters in SVG clip to primitive subregion, while CSS doesn't. | 62 // Filters in SVG clip to primitive subregion, while CSS doesn't. |
55 if (m_clipsToBounds) | 63 if (clipsToBounds()) |
pdr.
2016/09/08 20:46:12
The comment above m_clipsToBounds makes me think t
fs
2016/09/08 21:08:12
Yes, that probably makes more sense. The way thing
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56 requestedRect.intersect(maxEffectRect()); | 64 requestedRect.intersect(absoluteBounds()); |
57 | 65 |
58 // We may be called multiple times if result is used more than once. Return | 66 // We may be called multiple times if result is used more than once. Return |
59 // quickly if if nothing new is required. | 67 // quickly if if nothing new is required. |
60 if (absolutePaintRect().contains(enclosingIntRect(requestedRect))) | 68 if (absolutePaintRect().contains(enclosingIntRect(requestedRect))) |
61 return requestedRect; | 69 return requestedRect; |
62 | 70 |
63 FloatRect inputRect = mapPaintRect(requestedRect, false); | 71 FloatRect inputRect = mapPaintRect(requestedRect, false); |
64 FloatRect inputUnion; | 72 FloatRect inputUnion; |
65 unsigned size = m_inputEffects.size(); | 73 unsigned size = m_inputEffects.size(); |
66 | 74 |
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120 return ColorSpaceUtilities::convertColor(deviceColor, operatingColorSpace()) ; | 128 return ColorSpaceUtilities::convertColor(deviceColor, operatingColorSpace()) ; |
121 } | 129 } |
122 | 130 |
123 TextStream& FilterEffect::externalRepresentation(TextStream& ts, int) const | 131 TextStream& FilterEffect::externalRepresentation(TextStream& ts, int) const |
124 { | 132 { |
125 // FIXME: We should dump the subRegions of the filter primitives here later. This isn't | 133 // FIXME: We should dump the subRegions of the filter primitives here later. This isn't |
126 // possible at the moment, because we need more detailed informations from t he target object. | 134 // possible at the moment, because we need more detailed informations from t he target object. |
127 return ts; | 135 return ts; |
128 } | 136 } |
129 | 137 |
130 FloatRect FilterEffect::determineMaximumEffectRect() | |
131 { | |
132 DCHECK(getFilter()); | |
133 Filter* filter = getFilter(); | |
134 | |
135 // Compute the union of the inputs. Always do this because it has | |
136 // side-effects. (It computes the maximum effect rect of the input.) | |
137 FloatRect absoluteInputUnion; | |
138 for (auto& effect : m_inputEffects) | |
139 absoluteInputUnion.unite(effect->determineMaximumEffectRect()); | |
140 | |
141 FloatRect absoluteSubregion; | |
142 switch (getFilterEffectType()) { | |
143 default: | |
144 if (m_inputEffects.size()) { | |
145 absoluteSubregion = absoluteInputUnion; | |
146 if (clipsToBounds()) | |
147 absoluteSubregion.intersect(filter->mapLocalRectToAbsoluteRect(f ilterPrimitiveSubregion())); | |
148 break; | |
149 } | |
150 // Else fall-through and use the primitive region. (FETurbulence/FEFlood /FEImage) | |
151 case FilterEffectTypeTile: | |
152 absoluteSubregion = filter->mapLocalRectToAbsoluteRect(filterPrimitiveSu bregion()); | |
153 break; | |
154 case FilterEffectTypeSourceInput: | |
155 absoluteSubregion = filter->absoluteFilterRegion(); | |
156 break; | |
157 } | |
158 | |
159 // Clip every filter effect to the filter region. | |
160 absoluteSubregion.intersect(filter->absoluteFilterRegion()); | |
161 | |
162 m_maxEffectRect = absoluteSubregion; | |
163 return absoluteSubregion; | |
164 } | |
165 | |
166 sk_sp<SkImageFilter> FilterEffect::createImageFilter() | 138 sk_sp<SkImageFilter> FilterEffect::createImageFilter() |
167 { | 139 { |
168 return nullptr; | 140 return nullptr; |
169 } | 141 } |
170 | 142 |
171 sk_sp<SkImageFilter> FilterEffect::createImageFilterWithoutValidation() | 143 sk_sp<SkImageFilter> FilterEffect::createImageFilterWithoutValidation() |
172 { | 144 { |
173 return createImageFilter(); | 145 return createImageFilter(); |
174 } | 146 } |
175 | 147 |
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215 return m_imageFilters[index].get(); | 187 return m_imageFilters[index].get(); |
216 } | 188 } |
217 | 189 |
218 void FilterEffect::setImageFilter(ColorSpace colorSpace, bool requiresPMColorVal idation, sk_sp<SkImageFilter> imageFilter) | 190 void FilterEffect::setImageFilter(ColorSpace colorSpace, bool requiresPMColorVal idation, sk_sp<SkImageFilter> imageFilter) |
219 { | 191 { |
220 int index = getImageFilterIndex(colorSpace, requiresPMColorValidation); | 192 int index = getImageFilterIndex(colorSpace, requiresPMColorValidation); |
221 m_imageFilters[index] = std::move(imageFilter); | 193 m_imageFilters[index] = std::move(imageFilter); |
222 } | 194 } |
223 | 195 |
224 } // namespace blink | 196 } // namespace blink |
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