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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"
#if USE(ACCELERATED_COMPOSITING)
#if USE(SKIA)
#include "SkPictureCanvasLayerTextureUpdater.h"
#include "GraphicsContext.h"
#include "LayerPainterChromium.h"
#include "PlatformContextSkia.h"
#include "SkCanvas.h"
#include "TraceEvent.h"
namespace WebCore {
SkPictureCanvasLayerTextureUpdater::SkPictureCanvasLayerTextureUpdater(PassOwnPtr<LayerPainterChromium> painter)
: CanvasLayerTextureUpdater(painter)
, m_layerIsOpaque(false)
{
}
SkPictureCanvasLayerTextureUpdater::~SkPictureCanvasLayerTextureUpdater()
{
}
void SkPictureCanvasLayerTextureUpdater::prepareToUpdate(const IntRect& contentRect, const IntSize& /* tileSize */, int /* borderTexels */, float contentsScale, IntRect* resultingOpaqueRect)
{
SkCanvas* canvas = m_picture.beginRecording(contentRect.width(), contentRect.height());
PlatformContextSkia platformContext(canvas);
platformContext.setDeferred(true);
platformContext.setTrackOpaqueRegion(!m_layerIsOpaque);
GraphicsContext graphicsContext(&platformContext);
paintContents(graphicsContext, contentRect, contentsScale);
m_picture.endRecording();
if (!m_layerIsOpaque)
*resultingOpaqueRect = platformContext.opaqueRegion().asRect();
}
void SkPictureCanvasLayerTextureUpdater::drawPicture(SkCanvas* canvas)
{
TRACE_EVENT("SkPictureCanvasLayerTextureUpdater::drawPicture", this, 0);
canvas->drawPicture(m_picture);
}
void SkPictureCanvasLayerTextureUpdater::setOpaque(bool opaque)
{
m_layerIsOpaque = opaque;
}
} // namespace WebCore
#endif // USE(SKIA)
#endif // USE(ACCELERATED_COMPOSITING)
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