| /* |
| * Copyright (C) 2016 Apple Inc. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * |
| * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY |
| * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR |
| * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
| * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
| * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
| * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY |
| * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #include "config.h" |
| #include "DisplayListReplayer.h" |
| |
| #include "DisplayListItems.h" |
| #include "GraphicsContext.h" |
| #include "Logging.h" |
| #include <wtf/text/TextStream.h> |
| |
| namespace WebCore { |
| namespace DisplayList { |
| |
| Replayer::Replayer(GraphicsContext& context, const DisplayList& displayList) |
| : m_displayList(displayList) |
| , m_context(context) |
| { |
| } |
| |
| Replayer::~Replayer() = default; |
| |
| std::unique_ptr<DisplayList> Replayer::replay(const FloatRect& initialClip, bool trackReplayList) |
| { |
| LOG_WITH_STREAM(DisplayLists, stream << "\nReplaying with clip " << initialClip); |
| UNUSED_PARAM(initialClip); |
| |
| std::unique_ptr<DisplayList> replayList; |
| if (UNLIKELY(trackReplayList)) |
| replayList = std::make_unique<DisplayList>(); |
| |
| size_t numItems = m_displayList.itemCount(); |
| for (size_t i = 0; i < numItems; ++i) { |
| auto& item = m_displayList.list()[i].get(); |
| |
| if (!initialClip.isZero() && is<DrawingItem>(item)) { |
| const DrawingItem& drawingItem = downcast<DrawingItem>(item); |
| if (drawingItem.extentKnown() && !drawingItem.extent().intersects(initialClip)) { |
| LOG_WITH_STREAM(DisplayLists, stream << "skipping " << i << " " << item); |
| continue; |
| } |
| } |
| |
| LOG_WITH_STREAM(DisplayLists, stream << "applying " << i << " " << item); |
| item.apply(m_context); |
| |
| if (UNLIKELY(trackReplayList)) |
| replayList->appendItem(const_cast<Item&>(item)); |
| } |
| |
| return replayList; |
| } |
| |
| } // namespace DisplayList |
| } // namespace WebCore |