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 COMPUTER, 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 COMPUTER, 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 <wtf/CheckedArithmetic.h> 29#include <wtf/RefPtr.h> 30#include <wtf/RetainPtr.h> 31#include <wtf/Uint8ClampedArray.h> 32 33#if (PLATFORM(MAC) && USE(CA) && (PLATFORM(IOS) || __MAC_OS_X_VERSION_MIN_REQUIRED >= 1070)) 34#define WTF_USE_IOSURFACE_CANVAS_BACKING_STORE 1 35#endif 36 37typedef struct __IOSurface *IOSurfaceRef; 38typedef struct CGColorSpace *CGColorSpaceRef; 39typedef struct CGDataProvider *CGDataProviderRef; 40typedef uint32_t CGBitmapInfo; 41 42namespace WebCore { 43 44class IntSize; 45 46class ImageBufferData { 47public: 48 ImageBufferData(const IntSize&); 49 50 void* m_data; 51 52 RetainPtr<CGDataProviderRef> m_dataProvider; 53 CGBitmapInfo m_bitmapInfo; 54 Checked<unsigned, RecordOverflow> m_bytesPerRow; 55 CGColorSpaceRef m_colorSpace; 56 RetainPtr<IOSurfaceRef> m_surface; 57#if !PLATFORM(IOS) && __MAC_OS_X_VERSION_MIN_REQUIRED == 1070 58 mutable double m_lastFlushTime; 59#endif 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