| /* |
| * 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 "DisplayList.h" |
| |
| #include "DisplayListItems.h" |
| #include "Logging.h" |
| #include <wtf/StdLibExtras.h> |
| #include <wtf/text/TextStream.h> |
| |
| namespace WebCore { |
| namespace DisplayList { |
| |
| #if !defined(NDEBUG) || !LOG_DISABLED |
| WTF::CString DisplayList::description() const |
| { |
| TextStream ts; |
| ts << this; |
| return ts.release().utf8(); |
| } |
| |
| void DisplayList::dump() const |
| { |
| fprintf(stderr, "%s", description().data()); |
| } |
| #endif |
| |
| void DisplayList::clear() |
| { |
| m_list.clear(); |
| } |
| |
| void DisplayList::removeItemsFromIndex(size_t index) |
| { |
| m_list.resize(index); |
| } |
| |
| bool DisplayList::shouldDumpForFlags(AsTextFlags flags, const Item& item) |
| { |
| switch (item.type()) { |
| case ItemType::SetState: |
| if (!(flags & AsTextFlag::IncludesPlatformOperations)) { |
| const auto& stateItem = downcast<SetState>(item); |
| // FIXME: for now, only drop the item if the only state-change flags are platform-specific. |
| if (stateItem.state().m_changeFlags == GraphicsContextState::ShouldSubpixelQuantizeFontsChange) |
| return false; |
| |
| if (stateItem.state().m_changeFlags == GraphicsContextState::ShouldSubpixelQuantizeFontsChange) |
| return false; |
| } |
| break; |
| #if USE(CG) |
| case ItemType::ApplyFillPattern: |
| case ItemType::ApplyStrokePattern: |
| if (!(flags & AsTextFlag::IncludesPlatformOperations)) |
| return false; |
| break; |
| #endif |
| default: |
| break; |
| } |
| return true; |
| } |
| |
| String DisplayList::asText(AsTextFlags flags) const |
| { |
| TextStream stream(TextStream::LineMode::MultipleLine, TextStream::Formatting::SVGStyleRect); |
| for (auto& item : m_list) { |
| if (!shouldDumpForFlags(flags, item)) |
| continue; |
| stream << item; |
| } |
| return stream.release(); |
| } |
| |
| void DisplayList::dump(TextStream& ts) const |
| { |
| TextStream::GroupScope group(ts); |
| ts << "display list"; |
| |
| size_t numItems = m_list.size(); |
| for (size_t i = 0; i < numItems; ++i) { |
| TextStream::GroupScope scope(ts); |
| ts << i << " " << m_list[i].get(); |
| } |
| ts.startGroup(); |
| ts << "size in bytes: " << sizeInBytes(); |
| ts.endGroup(); |
| } |
| |
| size_t DisplayList::sizeInBytes() const |
| { |
| size_t result = 0; |
| for (auto& ref : m_list) |
| result += Item::sizeInBytes(ref); |
| |
| return result; |
| } |
| |
| } // namespace DisplayList |
| |
| TextStream& operator<<(TextStream& ts, const DisplayList::DisplayList& displayList) |
| { |
| displayList.dump(ts); |
| return ts; |
| } |
| |
| } // namespace WebCore |