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54 lines
2.0 KiB
C++
54 lines
2.0 KiB
C++
/*
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* Copyright (C) 2009 Apple Inc. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "flutter/sky/engine/platform/transforms/Matrix3DTransformOperation.h"
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#include <algorithm>
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namespace blink {
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PassRefPtr<TransformOperation> Matrix3DTransformOperation::blend(const TransformOperation* from, double progress, bool blendToIdentity)
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{
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if (from && !from->isSameType(*this))
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return this;
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// Convert the TransformOperations into matrices
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FloatSize size;
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TransformationMatrix fromT;
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TransformationMatrix toT;
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if (from)
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from->apply(fromT, size);
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apply(toT, size);
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if (blendToIdentity)
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std::swap(fromT, toT);
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toT.blend(fromT, progress);
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return Matrix3DTransformOperation::create(toT);
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}
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} // namespace blink
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