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| 1 /* | |
| 2 * Copyright (C) 2012 Adobe Systems Incorporated. All rights reserved. | |
| 3 * | |
| 4 * Redistribution and use in source and binary forms, with or without | |
| 5 * modification, are permitted provided that the following conditions | |
| 6 * are met: | |
| 7 * | |
| 8 * 1. Redistributions of source code must retain the above | |
| 9 * copyright notice, this list of conditions and the following | |
| 10 * disclaimer. | |
| 11 * 2. Redistributions in binary form must reproduce the above | |
| 12 * copyright notice, this list of conditions and the following | |
| 13 * disclaimer in the documentation and/or other materials | |
| 14 * provided with the distribution. | |
| 15 * | |
| 16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER "AS IS" AND ANY | |
| 17 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
| 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | |
| 19 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE | |
| 20 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, | |
| 21 * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, | |
| 22 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR | |
| 23 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
| 24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR | |
| 25 * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF | |
| 26 * THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
| 27 * SUCH DAMAGE. | |
| 28 */ | |
| 29 | |
| 30 #ifndef PaintLayerFilterInfo_h | |
| 31 #define PaintLayerFilterInfo_h | |
| 32 | |
| 33 #include "core/svg/SVGResourceClient.h" | |
| 34 #include "platform/heap/Handle.h" | |
| 35 #include "wtf/Noncopyable.h" | |
| 36 | |
| 37 namespace blink { | |
| 38 | |
| 39 class FilterEffect; | |
| 40 class PaintLayer; | |
| 41 | |
| 42 // PaintLayerFilterInfo holds the filter information for painting. | |
| 43 // https://drafts.fxtf.org/filters/ | |
| 44 // | |
| 45 // Because PaintLayer is not allocated for SVG objects, SVG filters (both | |
| 46 // software and hardware-accelerated) use a different code path to paint the | |
| 47 // filters (SVGFilterPainter), but both code paths use the same abstraction for | |
| 48 // painting non-hardware accelerated filters (FilterEffect). Hardware | |
| 49 // accelerated CSS filters use CompositorFilterOperations, that is backed by cc. | |
| 50 // | |
| 51 class PaintLayerFilterInfo final | |
| 52 : public GarbageCollectedFinalized<PaintLayerFilterInfo>, | |
| 53 public SVGResourceClient { | |
| 54 WTF_MAKE_NONCOPYABLE(PaintLayerFilterInfo); | |
| 55 USING_GARBAGE_COLLECTED_MIXIN(PaintLayerFilterInfo); | |
| 56 | |
| 57 public: | |
| 58 explicit PaintLayerFilterInfo(PaintLayer*); | |
| 59 ~PaintLayerFilterInfo() override; | |
| 60 | |
| 61 void setLastEffect(FilterEffect*); | |
| 62 FilterEffect* lastEffect() const; | |
| 63 void invalidateFilterChain(); | |
| 64 | |
| 65 void clearLayer() { m_layer = nullptr; } | |
| 66 | |
| 67 TreeScope* treeScope() override; | |
| 68 | |
| 69 void resourceContentChanged() override; | |
| 70 void resourceElementChanged() override; | |
| 71 | |
| 72 DECLARE_TRACE(); | |
| 73 | |
| 74 private: | |
| 75 // |clearLayer| must be called before *m_layer becomes invalid. | |
| 76 PaintLayer* m_layer; | |
| 77 Member<FilterEffect> m_lastEffect; | |
| 78 }; | |
| 79 | |
| 80 } // namespace blink | |
| 81 | |
| 82 #endif // PaintLayerFilterInfo_h | |
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Chromium Code Reviews
Issue 2484153003:
Use an SVGElementProxy in ReferenceClipPathOperation (Closed)
