18e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project/* 28f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian * Copyright (C) 2009 Apple Inc. All rights reserved. 38e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * 48e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * Redistribution and use in source and binary forms, with or without 58e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * modification, are permitted provided that the following conditions 68e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * are met: 78e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * 1. Redistributions of source code must retain the above copyright 88e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * notice, this list of conditions and the following disclaimer. 98e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * 2. Redistributions in binary form must reproduce the above copyright 108e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * notice, this list of conditions and the following disclaimer in the 118e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * documentation and/or other materials provided with the distribution. 128e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * 138f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY 148e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 158e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 168e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR 178e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 188e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 198e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 208e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY 218e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 228e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 238e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 248e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project */ 258e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 268e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project#include "config.h" 278f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian#include "Matrix3DTransformOperation.h" 288f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian 298f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian#include <algorithm> 308e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 318f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qianusing namespace std; 328e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 338e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectnamespace WebCore { 348e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 358f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng QianPassRefPtr<TransformOperation> Matrix3DTransformOperation::blend(const TransformOperation* from, double progress, bool blendToIdentity) 368e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 378f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian if (from && !from->isSameType(*this)) 388f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian return this; 398f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian 408f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian // Convert the TransformOperations into matrices 418f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian IntSize size; 428f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian TransformationMatrix fromT; 438f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian TransformationMatrix toT; 448f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian if (from) 458f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian from->apply(fromT, size); 468f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian 478f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian apply(toT, size); 488f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian 498f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian if (blendToIdentity) 500bf48ef3be53ddaa52bbead65dfd75bf90e7a2b5Ben Murdoch std::swap(fromT, toT); 518f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian 528f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian toT.blend(fromT, progress); 538f72e70a9fd78eec56623b3a62e68f16b7b27e28Feng Qian return Matrix3DTransformOperation::create(toT); 548e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 558e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 568e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} // namespace WebCore 57