1 /*
2 * Copyright (C) 2010 Apple Inc. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
14 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
15 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
17 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
18 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
19 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
20 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
21 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
22 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
23 * THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26 #include "config.h"
27 #include "ShareableBitmap.h"
28
29 #include <QImage>
30 #include <QPainter>
31 #include <WebCore/GraphicsContext.h>
32
33 using namespace WebCore;
34
35 namespace WebKit {
36
createQImage(void * data,int width,int height)37 static inline QImage createQImage(void* data, int width, int height)
38 {
39 return QImage(reinterpret_cast<uchar*>(data), width, height, width * 4, QImage::Format_RGB32);
40 }
41
createGraphicsContext()42 PassOwnPtr<GraphicsContext> ShareableBitmap::createGraphicsContext()
43 {
44 QImage* image = new QImage(createQImage(data(), m_size.width(), m_size.height()));
45 GraphicsContext* context = new GraphicsContext(new QPainter(image));
46 context->takeOwnershipOfPlatformContext();
47 return context;
48 }
49
paint(GraphicsContext & context,const IntPoint & dstPoint,const IntRect & srcRect)50 void ShareableBitmap::paint(GraphicsContext& context, const IntPoint& dstPoint, const IntRect& srcRect)
51 {
52 QImage image = createQImage(data(), m_size.width(), m_size.height());
53 QPainter* painter = context.platformContext();
54 painter->translate(-srcRect.x(), -srcRect.y());
55 painter->drawImage(dstPoint, image, QRect(srcRect));
56 painter->translate(srcRect.x(), srcRect.y());
57 }
58
59 } // namespace WebKit
60