1/* 2 * Copyright (C) 2011 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 "BackingStore.h" 28 29#include "ShareableBitmap.h" 30#include "UpdateInfo.h" 31 32using namespace WebCore; 33 34namespace WebKit { 35 36BackingStore::BackingStore(const IntSize& size, float deviceScaleFactor, WebPageProxy* webPageProxy) 37 : m_size(size) 38 , m_deviceScaleFactor(deviceScaleFactor) 39 , m_webPageProxy(webPageProxy) 40{ 41 ASSERT(!m_size.isEmpty()); 42} 43 44BackingStore::~BackingStore() 45{ 46} 47 48void BackingStore::incorporateUpdate(const UpdateInfo& updateInfo) 49{ 50 ASSERT(m_size == updateInfo.viewSize); 51 52 RefPtr<ShareableBitmap> bitmap = ShareableBitmap::create(updateInfo.bitmapHandle); 53 if (!bitmap) 54 return; 55 56#if !ASSERT_DISABLED 57 IntSize updateSize = updateInfo.updateRectBounds.size(); 58 updateSize.scale(m_deviceScaleFactor); 59 ASSERT(bitmap->size() == updateSize); 60#endif 61 62 incorporateUpdate(bitmap.get(), updateInfo); 63} 64 65} // namespace WebKit 66