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 CustomFilterOperation_h 31 #define CustomFilterOperation_h 32 33 #include "platform/geometry/LayoutSize.h" 34 #include "platform/graphics/filters/FilterOperation.h" 35 #include "platform/graphics/filters/custom/CustomFilterConstants.h" 36 #include "platform/graphics/filters/custom/CustomFilterParameterList.h" 37 #include "platform/graphics/filters/custom/CustomFilterProgram.h" 38 39 namespace WebCore { 40 41 // CSS Shaders 42 43 class PLATFORM_EXPORT CustomFilterOperation : public FilterOperation { 44 public: create(PassRefPtr<CustomFilterProgram> program,const CustomFilterParameterList & sortedParameters,unsigned meshRows,unsigned meshColumns,CustomFilterMeshType meshType)45 static PassRefPtr<CustomFilterOperation> create(PassRefPtr<CustomFilterProgram> program, const CustomFilterParameterList& sortedParameters, unsigned meshRows, unsigned meshColumns, CustomFilterMeshType meshType) 46 { 47 return adoptRef(new CustomFilterOperation(program, sortedParameters, meshRows, meshColumns, meshType)); 48 } 49 program()50 CustomFilterProgram* program() const { return m_program.get(); } setProgram(PassRefPtr<CustomFilterProgram> program)51 void setProgram(PassRefPtr<CustomFilterProgram> program) { m_program = program; } 52 parameters()53 const CustomFilterParameterList& parameters() const { return m_parameters; } 54 meshRows()55 unsigned meshRows() const { return m_meshRows; } meshColumns()56 unsigned meshColumns() const { return m_meshColumns; } 57 meshType()58 CustomFilterMeshType meshType() const { return m_meshType; } 59 60 virtual ~CustomFilterOperation(); 61 affectsOpacity()62 virtual bool affectsOpacity() const { return true; } movesPixels()63 virtual bool movesPixels() const { return true; } 64 65 66 protected: 67 CustomFilterOperation(PassRefPtr<CustomFilterProgram>, const CustomFilterParameterList&, unsigned meshRows, unsigned meshColumns, CustomFilterMeshType); 68 69 private: 70 virtual PassRefPtr<FilterOperation> blend(const FilterOperation* from, double progress) const OVERRIDE; 71 virtual bool operator==(const FilterOperation& o) const 72 { 73 if (!isSameType(o)) 74 return false; 75 76 const CustomFilterOperation* other = static_cast<const CustomFilterOperation*>(&o); 77 return m_program.get() == other->m_program.get() 78 && m_meshRows == other->m_meshRows 79 && m_meshColumns == other->m_meshColumns 80 && m_meshType == other->m_meshType 81 && m_parameters == other->m_parameters; 82 } 83 84 RefPtr<CustomFilterProgram> m_program; 85 CustomFilterParameterList m_parameters; 86 87 unsigned m_meshRows; 88 unsigned m_meshColumns; 89 CustomFilterMeshType m_meshType; 90 }; 91 92 DEFINE_FILTER_OPERATION_TYPE_CASTS(CustomFilterOperation, CUSTOM); 93 94 } // namespace WebCore 95 96 97 #endif // CustomFilterOperation_h 98