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/*
* Copyright (C) 2010 Apple 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 INC. 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 INC. 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 "ShareableBitmap.h"
#include <WebCore/GraphicsContext.h>
#include <wtf/RetainPtr.h>
#include "CGUtilities.h"
using namespace WebCore;
namespace WebKit {
PassOwnPtr<GraphicsContext> ShareableBitmap::createGraphicsContext()
{
RetainPtr<CGColorSpaceRef> colorSpace(AdoptCF, CGColorSpaceCreateDeviceRGB());
RetainPtr<CGContextRef> bitmapContext(AdoptCF, CGBitmapContextCreate(data(), m_size.width(), m_size.height(), 8, m_size.width() * 4, colorSpace.get(),
kCGImageAlphaPremultipliedFirst | kCGBitmapByteOrder32Host));
// We want the origin to be in the top left corner so flip the backing store context.
CGContextTranslateCTM(bitmapContext.get(), 0, m_size.height());
CGContextScaleCTM(bitmapContext.get(), 1, -1);
return adoptPtr(new GraphicsContext(bitmapContext.get()));
}
void ShareableBitmap::paint(WebCore::GraphicsContext& context, const IntPoint& dstPoint, const IntRect& srcRect)
{
OwnPtr<GraphicsContext> sourceContext(createGraphicsContext());
paintBitmapContext(context.platformContext(), sourceContext->platformContext(), dstPoint, srcRect);
}
} // namespace WebKit
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