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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 "config.h"
#include "ShareableBitmap.h"
#include "NativeImageQt.h"
#include <QImage>
#include <QPainter>
#include <QtGlobal>
#include <WebCore/BitmapImage.h>
#include <WebCore/GraphicsContext.h>
using namespace WebCore;
namespace WebKit {
QImage ShareableBitmap::createQImage()
{
ref(); // Balanced by deref in releaseSharedMemoryData
return QImage(reinterpret_cast<uchar*>(data()), m_size.width(), m_size.height(), m_size.width() * 4,
m_flags & SupportsAlpha ? NativeImageQt::defaultFormatForAlphaEnabledImages() : NativeImageQt::defaultFormatForOpaqueImages(),
releaseSharedMemoryData, this);
}
void ShareableBitmap::releaseSharedMemoryData(void* typelessBitmap)
{
static_cast<ShareableBitmap*>(typelessBitmap)->deref(); // Balanced by ref in createQImage.
}
PassRefPtr<Image> ShareableBitmap::createImage()
{
QPixmap* pixmap = new QPixmap(QPixmap::fromImage(createQImage()));
return BitmapImage::create(pixmap);
}
std::unique_ptr<GraphicsContext> ShareableBitmap::createGraphicsContext()
{
// QTFIXME: Shallow QImage leaks here, but it should not be destroyed earlier than QPainter
QImage* image = new QImage(createQImage());
QPainter* painter = new QPainter(image);
painter->setRenderHint(QPainter::SmoothPixmapTransform, true);
auto context = std::make_unique<GraphicsContext>(painter);
context->takeOwnershipOfPlatformContext();
return context;
}
void ShareableBitmap::paint(GraphicsContext& context, const IntPoint& dstPoint, const IntRect& srcRect)
{
QImage image = createQImage();
QPainter* painter = context.platformContext();
painter->drawImage(dstPoint, image, QRect(srcRect));
}
void ShareableBitmap::paint(GraphicsContext& context, float scaleFactor, const IntPoint& dstPoint, const IntRect& srcRect)
{
if (qFuzzyCompare(scaleFactor, 1)) {
paint(context, dstPoint, srcRect);
return;
}
QImage image = createQImage();
QPainter* painter = context.platformContext();
painter->save();
painter->scale(scaleFactor, scaleFactor);
painter->drawImage(dstPoint, image, QRect(srcRect));
painter->restore();
}
}
// namespace WebKit
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