1 /* 2 * Copyright (C) 2013 Google Inc. 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 are 6 * met: 7 * 8 * * Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * * Redistributions in binary form must reproduce the above 11 * copyright notice, this list of conditions and the following disclaimer 12 * in the documentation and/or other materials provided with the 13 * distribution. 14 * * Neither the name of Google Inc. nor the names of its 15 * contributors may be used to endorse or promote products derived from 16 * this software without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29 */ 30 31 #include "config.h" 32 #include "core/animation/AnimatableFilterOperations.h" 33 34 #include <algorithm> 35 36 namespace WebCore { 37 38 bool AnimatableFilterOperations::usesDefaultInterpolationWith(const AnimatableValue* value) const 39 { 40 const AnimatableFilterOperations* target = toAnimatableFilterOperations(value); 41 return !operations().canInterpolateWith(target->operations()); 42 } 43 44 PassRefPtrWillBeRawPtr<AnimatableValue> AnimatableFilterOperations::interpolateTo(const AnimatableValue* value, double fraction) const 45 { 46 if (usesDefaultInterpolationWith(value)) 47 return defaultInterpolateTo(this, value, fraction); 48 49 const AnimatableFilterOperations* target = toAnimatableFilterOperations(value); 50 FilterOperations result; 51 size_t fromSize = operations().size(); 52 size_t toSize = target->operations().size(); 53 size_t size = std::max(fromSize, toSize); 54 for (size_t i = 0; i < size; i++) { 55 FilterOperation* from = (i < fromSize) ? m_operations.operations()[i].get() : 0; 56 FilterOperation* to = (i < toSize) ? target->m_operations.operations()[i].get() : 0; 57 RefPtr<FilterOperation> blendedOp = FilterOperation::blend(from, to, fraction); 58 if (blendedOp) 59 result.operations().append(blendedOp); 60 else 61 ASSERT_NOT_REACHED(); 62 } 63 return AnimatableFilterOperations::create(result); 64 } 65 66 bool AnimatableFilterOperations::equalTo(const AnimatableValue* value) const 67 { 68 return operations() == toAnimatableFilterOperations(value)->operations(); 69 } 70 71 } 72
