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| 1 /* | 1 /* |
| 2 * Copyright (C) 2012 Adobe Systems Incorporated. All rights reserved. | 2 * Copyright (C) 2012 Adobe Systems Incorporated. All rights reserved. |
| 3 * | 3 * |
| 4 * Redistribution and use in source and binary forms, with or without | 4 * Redistribution and use in source and binary forms, with or without |
| 5 * modification, are permitted provided that the following conditions | 5 * modification, are permitted provided that the following conditions |
| 6 * are met: | 6 * are met: |
| 7 * | 7 * |
| 8 * 1. Redistributions of source code must retain the above | 8 * 1. Redistributions of source code must retain the above |
| 9 * copyright notice, this list of conditions and the following | 9 * copyright notice, this list of conditions and the following |
| 10 * disclaimer. | 10 * disclaimer. |
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| 49 | 49 |
| 50 typedef HashMap<const PaintLayer*, PaintLayerFilterInfo*> PaintLayerFilterInfoMa
p; | 50 typedef HashMap<const PaintLayer*, PaintLayerFilterInfo*> PaintLayerFilterInfoMa
p; |
| 51 | 51 |
| 52 // PaintLayerFilterInfo holds the filter information for painting. | 52 // PaintLayerFilterInfo holds the filter information for painting. |
| 53 // https://drafts.fxtf.org/filters/ | 53 // https://drafts.fxtf.org/filters/ |
| 54 // | 54 // |
| 55 // Because PaintLayer is not allocated for SVG objects, SVG filters (both | 55 // Because PaintLayer is not allocated for SVG objects, SVG filters (both |
| 56 // software and hardware-accelerated) use a different code path to paint the | 56 // software and hardware-accelerated) use a different code path to paint the |
| 57 // filters (SVGFilterPainter), but both code paths use the same abstraction for | 57 // filters (SVGFilterPainter), but both code paths use the same abstraction for |
| 58 // painting non-hardware accelerated filters (FilterEffect). Hardware | 58 // painting non-hardware accelerated filters (FilterEffect). Hardware |
| 59 // accelerated CSS filters use WebFilterOperations, that is backed by cc. | 59 // accelerated CSS filters use CompositorFilterOperations, that is backed by cc. |
| 60 // | 60 // |
| 61 // PaintLayerFilterInfo is allocated when filters are present and stored in an | 61 // PaintLayerFilterInfo is allocated when filters are present and stored in an |
| 62 // internal map (s_filterMap) to save memory as 'filter' should be a rare | 62 // internal map (s_filterMap) to save memory as 'filter' should be a rare |
| 63 // property. | 63 // property. |
| 64 class PaintLayerFilterInfo final : public DocumentResourceClient, public SVGReso
urceClient { | 64 class PaintLayerFilterInfo final : public DocumentResourceClient, public SVGReso
urceClient { |
| 65 USING_FAST_MALLOC(PaintLayerFilterInfo); | 65 USING_FAST_MALLOC(PaintLayerFilterInfo); |
| 66 WTF_MAKE_NONCOPYABLE(PaintLayerFilterInfo); | 66 WTF_MAKE_NONCOPYABLE(PaintLayerFilterInfo); |
| 67 public: | 67 public: |
| 68 // Queries the PaintLayerFilterInfo for the associated PaintLayer. | 68 // Queries the PaintLayerFilterInfo for the associated PaintLayer. |
| 69 // The function returns nullptr if there is no associated | 69 // The function returns nullptr if there is no associated |
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| 102 | 102 |
| 103 // This stores SVG reference filters (filter: url(#someElement)) where the | 103 // This stores SVG reference filters (filter: url(#someElement)) where the |
| 104 // reference belongs to a different document. | 104 // reference belongs to a different document. |
| 105 WillBePersistentHeapVector<RefPtrWillBeMember<DocumentResource>> m_externalS
VGReferences; | 105 WillBePersistentHeapVector<RefPtrWillBeMember<DocumentResource>> m_externalS
VGReferences; |
| 106 }; | 106 }; |
| 107 | 107 |
| 108 } // namespace blink | 108 } // namespace blink |
| 109 | 109 |
| 110 | 110 |
| 111 #endif // PaintLayerFilterInfo_h | 111 #endif // PaintLayerFilterInfo_h |
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