165f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch/* 265f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch * Copyright (C) 2010 Apple Inc. All rights reserved. 365f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch * 465f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch * Redistribution and use in source and binary forms, with or without 565f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch * modification, are permitted provided that the following conditions 665f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch * are met: 765f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch * 1. Redistributions of source code must retain the above copyright 865f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch * notice, this list of conditions and the following disclaimer. 965f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch * 2. Redistributions in binary form must reproduce the above copyright 1065f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch * notice, this list of conditions and the following disclaimer in the 1165f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch * documentation and/or other materials provided with the distribution. 1265f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch * 1365f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' 1465f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, 1565f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 1665f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS 1765f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 1865f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 1965f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 2065f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 2165f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 2265f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 2365f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch * THE POSSIBILITY OF SUCH DAMAGE. 2465f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch */ 2565f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch 262fc2651226baac27029e38c9d6ef883fa32084dbSteve Block#include "config.h" 2765f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch#include "ChunkedUpdateDrawingAreaProxy.h" 2865f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch 2965f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch#include "UpdateChunk.h" 3065f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch#include "WebProcessProxy.h" 3165f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch#include "WebView.h" 3265f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch#include <WebCore/BitmapInfo.h> 3365f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch 3465f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdochusing namespace WebCore; 3565f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch 3665f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdochnamespace WebKit { 3765f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch 3865f03d4f644ce73618e5f4f50dd694b26f55ae12Ben MurdochWebPageProxy* ChunkedUpdateDrawingAreaProxy::page() 3965f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch{ 4065f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch return m_webView->page(); 4165f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch} 4265f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch 4365f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdochvoid ChunkedUpdateDrawingAreaProxy::ensureBackingStore() 4465f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch{ 4565f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch if (m_backingStoreBitmap) 4665f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch return; 4765f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch 4865f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch BitmapInfo bitmapInfo = BitmapInfo::createBottomUp(size()); 4965f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch 5065f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch void* pixels = 0; 5165f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch m_backingStoreBitmap.set(::CreateDIBSection(0, &bitmapInfo, DIB_RGB_COLORS, &pixels, 0, 0)); 5265f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch 5365f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch if (!m_backingStoreDC) { 5465f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch // Create a DC for the backing store. 5565f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch HDC screenDC = ::GetDC(0); 5665f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch m_backingStoreDC.set(::CreateCompatibleDC(screenDC)); 5765f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch ::ReleaseDC(0, screenDC); 5865f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch } 5965f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch 6065f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch ::SelectObject(m_backingStoreDC.get(), m_backingStoreBitmap.get()); 6165f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch} 6265f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch 6365f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdochvoid ChunkedUpdateDrawingAreaProxy::invalidateBackingStore() 6465f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch{ 6565f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch m_backingStoreBitmap.clear(); 6665f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch} 6765f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch 6865f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdochbool ChunkedUpdateDrawingAreaProxy::platformPaint(const IntRect& rect, HDC hdc) 6965f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch{ 7065f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch if (!m_backingStoreBitmap) 7165f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch return false; 7265f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch 7365f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch // BitBlt from the backing-store to the passed in hdc. 7465f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch ::BitBlt(hdc, rect.x(), rect.y(), rect.width(), rect.height(), m_backingStoreDC.get(), rect.x(), rect.y(), SRCCOPY); 7565f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch return true; 7665f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch} 7765f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch 7865f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdochvoid ChunkedUpdateDrawingAreaProxy::drawUpdateChunkIntoBackingStore(UpdateChunk* updateChunk) 7965f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch{ 8065f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch ensureBackingStore(); 8165f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch 8265f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch OwnPtr<HDC> updateChunkBitmapDC(::CreateCompatibleDC(m_backingStoreDC.get())); 8365f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch 8465f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch // Create a bitmap. 8565f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch BitmapInfo bitmapInfo = BitmapInfo::createBottomUp(updateChunk->rect().size()); 8665f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch 8765f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch // Duplicate the update chunk handle. 8865f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch HANDLE updateChunkHandle; 8965f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch BOOL result = ::DuplicateHandle(m_webView->page()->process()->processIdentifier(), updateChunk->memory(), 9065f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch ::GetCurrentProcess(), &updateChunkHandle, STANDARD_RIGHTS_REQUIRED | FILE_MAP_READ | FILE_MAP_WRITE, false, DUPLICATE_CLOSE_SOURCE); 9165f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch 9265f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch void* pixels = 0; 9365f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch OwnPtr<HBITMAP> hBitmap(::CreateDIBSection(0, &bitmapInfo, DIB_RGB_COLORS, &pixels, updateChunkHandle, 0)); 9465f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch ::SelectObject(updateChunkBitmapDC.get(), hBitmap.get()); 9565f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch 9665f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch // BitBlt from the UpdateChunk to the backing store. 9765f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch ::BitBlt(m_backingStoreDC.get(), updateChunk->rect().x(), updateChunk->rect().y(), updateChunk->rect().width(), updateChunk->rect().height(), updateChunkBitmapDC.get(), 0, 0, SRCCOPY); 9865f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch 9965f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch // FIXME: We should not do this here. 10065f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch ::CloseHandle(updateChunkHandle); 10165f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch 10265f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch // Invalidate the WebView's HWND. 10365f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch RECT rect = updateChunk->rect(); 10465f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch ::InvalidateRect(m_webView->window(), &rect, false); 10565f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch} 10665f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch 10765f03d4f644ce73618e5f4f50dd694b26f55ae12Ben Murdoch} // namespace WebKit 108