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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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49 } | 49 } |
50 | 50 |
51 FloatRect FilterEffect::absoluteBounds() const | 51 FloatRect FilterEffect::absoluteBounds() const |
52 { | 52 { |
53 FloatRect computedBounds = getFilter()->filterRegion(); | 53 FloatRect computedBounds = getFilter()->filterRegion(); |
54 if (!filterPrimitiveSubregion().isEmpty()) | 54 if (!filterPrimitiveSubregion().isEmpty()) |
55 computedBounds.intersect(filterPrimitiveSubregion()); | 55 computedBounds.intersect(filterPrimitiveSubregion()); |
56 return getFilter()->mapLocalRectToAbsoluteRect(computedBounds); | 56 return getFilter()->mapLocalRectToAbsoluteRect(computedBounds); |
57 } | 57 } |
58 | 58 |
59 FloatRect FilterEffect::determineAbsolutePaintRect(const FloatRect& originalRequ
estedRect) const | 59 FloatRect FilterEffect::mapInputs(const FloatRect& rect) const |
60 { | 60 { |
61 FloatRect requestedRect = originalRequestedRect; | 61 if (!m_inputEffects.size()) { |
62 // Filters in SVG clip to primitive subregion, while CSS doesn't. | 62 if (clipsToBounds()) |
63 if (clipsToBounds()) | 63 return absoluteBounds(); |
64 requestedRect.intersect(absoluteBounds()); | 64 return rect; |
65 | 65 } |
66 FloatRect inputRect = mapPaintRect(requestedRect, false); | |
67 FloatRect inputUnion; | 66 FloatRect inputUnion; |
68 unsigned size = m_inputEffects.size(); | 67 for (const auto& effect : m_inputEffects) |
69 | 68 inputUnion.unite(effect->mapRect(rect)); |
70 for (unsigned i = 0; i < size; ++i) | |
71 inputUnion.unite(m_inputEffects.at(i)->determineAbsolutePaintRect(inputR
ect)); | |
72 inputUnion = mapPaintRect(inputUnion, true); | |
73 | |
74 if (affectsTransparentPixels() || !size) { | |
75 inputUnion = requestedRect; | |
76 } else { | |
77 // Rect may have inflated. Re-intersect with request. | |
78 inputUnion.intersect(requestedRect); | |
79 } | |
80 return inputUnion; | 69 return inputUnion; |
81 } | 70 } |
82 | 71 |
83 FloatRect FilterEffect::mapRectRecursive(const FloatRect& rect) const | 72 FloatRect FilterEffect::mapEffect(const FloatRect& rect) const |
84 { | 73 { |
85 FloatRect result; | 74 return rect; |
86 if (m_inputEffects.size() > 0) { | 75 } |
87 result = m_inputEffects.at(0)->mapRectRecursive(rect); | 76 |
88 for (unsigned i = 1; i < m_inputEffects.size(); ++i) | 77 FloatRect FilterEffect::applyBounds(const FloatRect& rect) const |
89 result.unite(m_inputEffects.at(i)->mapRectRecursive(rect)); | 78 { |
90 } else | 79 // Filters in SVG clip to primitive subregion, while CSS doesn't. |
91 result = rect; | 80 if (!clipsToBounds()) |
92 return mapRect(result); | 81 return rect; |
| 82 FloatRect bounds = absoluteBounds(); |
| 83 if (affectsTransparentPixels()) |
| 84 return bounds; |
| 85 return intersection(rect, bounds); |
| 86 } |
| 87 |
| 88 FloatRect FilterEffect::mapRect(const FloatRect& rect) const |
| 89 { |
| 90 FloatRect result = mapInputs(rect); |
| 91 result = mapEffect(result); |
| 92 return applyBounds(result); |
93 } | 93 } |
94 | 94 |
95 FilterEffect* FilterEffect::inputEffect(unsigned number) const | 95 FilterEffect* FilterEffect::inputEffect(unsigned number) const |
96 { | 96 { |
97 ASSERT_WITH_SECURITY_IMPLICATION(number < m_inputEffects.size()); | 97 ASSERT_WITH_SECURITY_IMPLICATION(number < m_inputEffects.size()); |
98 return m_inputEffects.at(number).get(); | 98 return m_inputEffects.at(number).get(); |
99 } | 99 } |
100 | 100 |
101 void FilterEffect::clearResult() | 101 void FilterEffect::clearResult() |
102 { | 102 { |
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169 return m_imageFilters[index].get(); | 169 return m_imageFilters[index].get(); |
170 } | 170 } |
171 | 171 |
172 void FilterEffect::setImageFilter(ColorSpace colorSpace, bool requiresPMColorVal
idation, sk_sp<SkImageFilter> imageFilter) | 172 void FilterEffect::setImageFilter(ColorSpace colorSpace, bool requiresPMColorVal
idation, sk_sp<SkImageFilter> imageFilter) |
173 { | 173 { |
174 int index = getImageFilterIndex(colorSpace, requiresPMColorValidation); | 174 int index = getImageFilterIndex(colorSpace, requiresPMColorValidation); |
175 m_imageFilters[index] = std::move(imageFilter); | 175 m_imageFilters[index] = std::move(imageFilter); |
176 } | 176 } |
177 | 177 |
178 } // namespace blink | 178 } // namespace blink |
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