1/*
2 * Copyright (C) 2011 Apple Inc. All rights reserved.
3 * Copyright (C) 2008 Google Inc. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in the
12 *    documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
15 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
17 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
18 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
19 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
20 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
21 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
22 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
24 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25 */
26
27#include "Image.h"
28#include <runtime/Uint8ClampedArray.h>
29#include <wtf/CheckedArithmetic.h>
30#include <wtf/RefPtr.h>
31#include <wtf/RetainPtr.h>
32
33#if PLATFORM(COCOA) && USE(CA)
34#if !PLATFORM(IOS_SIMULATOR)
35#define WTF_USE_IOSURFACE_CANVAS_BACKING_STORE 1
36#endif // !PLATFORM(IOS_SIMULATOR)
37#endif
38
39typedef struct __IOSurface *IOSurfaceRef;
40typedef struct CGColorSpace *CGColorSpaceRef;
41typedef struct CGDataProvider *CGDataProviderRef;
42typedef uint32_t CGBitmapInfo;
43
44namespace WebCore {
45
46class IntSize;
47
48class ImageBufferData {
49public:
50    ImageBufferData(const IntSize&);
51
52    void* m_data;
53
54    RetainPtr<CGDataProviderRef> m_dataProvider;
55    CGBitmapInfo m_bitmapInfo;
56    Checked<unsigned, RecordOverflow> m_bytesPerRow;
57    CGColorSpaceRef m_colorSpace;
58    RetainPtr<IOSurfaceRef> m_surface;
59    IntSize m_backingStoreSize;
60
61    PassRefPtr<Uint8ClampedArray> getData(const IntRect&, const IntSize&, bool accelerateRendering, bool unmultiplied, float resolutionScale) const;
62    void putData(Uint8ClampedArray*& source, const IntSize& sourceSize, const IntRect& sourceRect, const IntPoint& destPoint, const IntSize&, bool accelerateRendering, bool unmultiplied, float resolutionScale);
63};
64
65} // namespace WebCore
66