1/*
2 * Copyright (C) 2012 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#pragma once
27
28#include "DisplayRefreshMonitorClient.h"
29#include "PlatformScreen.h"
30
31namespace WebCore {
32
33class GraphicsLayerUpdater;
34
35class GraphicsLayerUpdaterClient {
36public:
37 virtual ~GraphicsLayerUpdaterClient() = default;
38 virtual void flushLayersSoon(GraphicsLayerUpdater&) = 0;
39#if USE(REQUEST_ANIMATION_FRAME_DISPLAY_MONITOR)
40 virtual RefPtr<DisplayRefreshMonitor> createDisplayRefreshMonitor(PlatformDisplayID) const = 0;
41#endif
42};
43
44class GraphicsLayerUpdater
45#if USE(REQUEST_ANIMATION_FRAME_DISPLAY_MONITOR)
46 : public DisplayRefreshMonitorClient
47#endif
48{
49 WTF_MAKE_FAST_ALLOCATED;
50public:
51 GraphicsLayerUpdater(GraphicsLayerUpdaterClient&, PlatformDisplayID);
52 virtual ~GraphicsLayerUpdater();
53
54 void scheduleUpdate();
55 void screenDidChange(PlatformDisplayID);
56
57#if USE(REQUEST_ANIMATION_FRAME_DISPLAY_MONITOR)
58 RefPtr<DisplayRefreshMonitor> createDisplayRefreshMonitor(PlatformDisplayID) const override;
59#endif
60
61private:
62#if USE(REQUEST_ANIMATION_FRAME_DISPLAY_MONITOR)
63 void displayRefreshFired() override;
64 GraphicsLayerUpdaterClient& m_client;
65#endif
66 bool m_scheduled { false };
67};
68
69} // namespace WebCore
70