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 #ifndef UpdateChunk_h 27 #define UpdateChunk_h 28 29 #include <WebCore/IntRect.h> 30 31 namespace CoreIPC { 32 class ArgumentEncoder; 33 class ArgumentDecoder; 34 } 35 36 namespace WebKit { 37 38 class UpdateChunk { 39 public: 40 UpdateChunk(); 41 UpdateChunk(const WebCore::IntRect&); 42 UpdateChunk(const WebCore::IntRect&, HANDLE); 43 44 const WebCore::IntRect& rect() const { return m_rect; } 45 HANDLE memory() const { return m_bitmapSharedMemory; } 46 bool isEmpty() const { return m_rect.isEmpty(); } 47 48 void encode(CoreIPC::ArgumentEncoder*) const; 49 static bool decode(CoreIPC::ArgumentDecoder*, UpdateChunk&); 50 51 private: 52 WebCore::IntRect m_rect; 53 HANDLE m_bitmapSharedMemory; 54 }; 55 56 } // namespace WebKit 57 58 #endif // UpdateChunk_h 59
