| /* |
| * Copyright (C) 2015 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. AND ITS CONTRIBUTORS ``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 ITS 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. |
| */ |
| |
| #pragma once |
| |
| #import <WebCore/FloatRect.h> |
| #import <wtf/Vector.h> |
| |
| namespace WebKit { |
| |
| class RemoteLayerTreeDrawingAreaProxy; |
| |
| class RemoteLayerTreeScrollingPerformanceData { |
| WTF_MAKE_FAST_ALLOCATED; |
| public: |
| RemoteLayerTreeScrollingPerformanceData(RemoteLayerTreeDrawingAreaProxy&); |
| ~RemoteLayerTreeScrollingPerformanceData(); |
| |
| void didCommitLayerTree(const WebCore::FloatRect& visibleRect); |
| void didScroll(const WebCore::FloatRect& visibleRect); |
| |
| NSArray *data(); // Array of [ time, event type, unfilled pixel count ] |
| |
| private: |
| unsigned blankPixelCount(const WebCore::FloatRect& visibleRect) const; |
| |
| struct BlankPixelCount { |
| enum EventType { Filled, Exposed }; |
| |
| double startTime; |
| double endTime; |
| EventType eventType; |
| unsigned blankPixelCount; |
| |
| BlankPixelCount(double start, double end, EventType type, unsigned count) |
| : startTime(start) |
| , endTime(end) |
| , eventType(type) |
| , blankPixelCount(count) |
| { } |
| |
| bool canCoalesce(BlankPixelCount::EventType, unsigned blankPixelCount) const; |
| }; |
| |
| void appendBlankPixelCount(BlankPixelCount::EventType, unsigned blankPixelCount); |
| |
| RemoteLayerTreeDrawingAreaProxy& m_drawingArea; |
| Vector<BlankPixelCount> m_blankPixelCounts; |
| }; |
| |
| } |