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 RenderLayerFilterInfo_h 31 #define RenderLayerFilterInfo_h 32 33 #include "core/dom/Element.h" 34 #include "core/fetch/DocumentResource.h" 35 #include "platform/geometry/LayoutRect.h" 36 #include "platform/graphics/filters/FilterOperation.h" 37 #include "platform/graphics/filters/custom/CustomFilterProgramClient.h" 38 #include "wtf/HashMap.h" 39 #include "wtf/PassRefPtr.h" 40 #include "wtf/RefPtr.h" 41 42 namespace WebCore { 43 44 class FilterEffectRenderer; 45 class FilterOperations; 46 class RenderLayer; 47 class RenderLayerFilterInfo; 48 49 typedef HashMap<const RenderLayer*, RenderLayerFilterInfo*> RenderLayerFilterInfoMap; 50 51 class RenderLayerFilterInfo : public CustomFilterProgramClient, public DocumentResourceClient { 52 public: 53 static RenderLayerFilterInfo* filterInfoForRenderLayer(const RenderLayer*); 54 static RenderLayerFilterInfo* createFilterInfoForRenderLayerIfNeeded(RenderLayer*); 55 static void removeFilterInfoForRenderLayer(RenderLayer*); 56 57 const LayoutRect& dirtySourceRect() const { return m_dirtySourceRect; } 58 void expandDirtySourceRect(const LayoutRect& rect) { m_dirtySourceRect.unite(rect); } 59 void resetDirtySourceRect() { m_dirtySourceRect = LayoutRect(); } 60 61 FilterEffectRenderer* renderer() const { return m_renderer.get(); } 62 void setRenderer(PassRefPtr<FilterEffectRenderer>); 63 64 // Implementation of the CustomFilterProgramClient interface. 65 virtual void notifyCustomFilterProgramLoaded(CustomFilterProgram*); 66 67 void updateCustomFilterClients(const FilterOperations&); 68 void removeCustomFilterClients(); 69 70 void updateReferenceFilterClients(const FilterOperations&); 71 virtual void notifyFinished(Resource*); 72 void removeReferenceFilterClients(); 73 74 private: 75 RenderLayerFilterInfo(RenderLayer*); 76 ~RenderLayerFilterInfo(); 77 78 RenderLayer* m_layer; 79 80 RefPtr<FilterEffectRenderer> m_renderer; 81 LayoutRect m_dirtySourceRect; 82 83 typedef Vector<RefPtr<CustomFilterProgram> > CustomFilterProgramList; 84 CustomFilterProgramList m_cachedCustomFilterPrograms; 85 86 static RenderLayerFilterInfoMap* s_filterMap; 87 Vector<RefPtr<Element> > m_internalSVGReferences; 88 Vector<ResourcePtr<DocumentResource> > m_externalSVGReferences; 89 }; 90 91 } // namespace WebCore 92 93 94 #endif // RenderLayerFilterInfo_h 95
