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 "ChunkedUpdateDrawingArea.h" 28 29 #include "UpdateChunk.h" 30 #include "WebFrame.h" 31 #include "WebPage.h" 32 #include "WebFrameLoaderClient.h" 33 #include <WebCore/Frame.h> 34 #include <WebCore/GraphicsContext.h> 35 #include <wtf/RetainPtr.h> 36 37 using namespace WebCore; 38 39 namespace WebKit { 40 41 void ChunkedUpdateDrawingArea::paintIntoUpdateChunk(UpdateChunk* updateChunk) 42 { 43 // FIXME: It would be better if we could avoid painting altogether when there is a custom representation. 44 if (m_webPage->mainFrameHasCustomRepresentation()) 45 return; 46 47 RetainPtr<CGColorSpaceRef> colorSpace(AdoptCF, CGColorSpaceCreateDeviceRGB()); 48 RetainPtr<CGContextRef> bitmapContext(AdoptCF, CGBitmapContextCreate(updateChunk->data(), updateChunk->rect().width(), updateChunk->rect().height(), 8, updateChunk->rect().width() * 4, colorSpace.get(), kCGImageAlphaPremultipliedFirst | kCGBitmapByteOrder32Host)); 49 50 // WebCore expects a flipped coordinate system. 51 CGContextTranslateCTM(bitmapContext.get(), 0.0, updateChunk->rect().height()); 52 CGContextScaleCTM(bitmapContext.get(), 1.0, -1.0); 53 54 // Now paint into the backing store. 55 GraphicsContext graphicsContext(bitmapContext.get()); 56 graphicsContext.translate(-updateChunk->rect().x(), -updateChunk->rect().y()); 57 58 m_webPage->drawRect(graphicsContext, updateChunk->rect()); 59 } 60 61 } // namespace WebKit 62
