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/*
* Copyright (C) 2011 Google Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "config.h"
#include "cc/CCSharedQuadState.h"
using WebKit::WebTransformationMatrix;
namespace WebCore {
PassOwnPtr<CCSharedQuadState> CCSharedQuadState::create(const WebTransformationMatrix& quadTransform, const WebTransformationMatrix& layerTransform, const IntRect& layerRect, const IntRect& clipRect, float opacity, bool opaque)
{
return adoptPtr(new CCSharedQuadState(quadTransform, layerTransform, layerRect, clipRect, opacity, opaque));
}
CCSharedQuadState::CCSharedQuadState(const WebTransformationMatrix& quadTransform, const WebTransformationMatrix& layerTransform, const IntRect& layerRect, const IntRect& clipRect, float opacity, bool opaque)
: m_quadTransform(quadTransform)
, m_layerTransform(layerTransform)
, m_layerRect(layerRect)
, m_clipRect(clipRect)
, m_opacity(opacity)
, m_opaque(opaque)
{
}
bool CCSharedQuadState::isLayerAxisAlignedIntRect() const
{
// Note: this doesn't consider window or projection matrices.
// Assume that they're orthonormal and have integer scales and translations.
FloatQuad quad = quadTransform().mapQuad(FloatQuad(layerRect()));
return quad.isRectilinear() && quad.boundingBox().isExpressibleAsIntRect();
}
}
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