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#include "config.h"
27#include "GraphicsLayerUpdater.h"
28
29#include "DisplayRefreshMonitorManager.h"
30#include "GraphicsLayer.h"
31
32namespace WebCore {
33
34#if USE(REQUEST_ANIMATION_FRAME_DISPLAY_MONITOR)
35GraphicsLayerUpdater::GraphicsLayerUpdater(GraphicsLayerUpdaterClient& client, PlatformDisplayID displayID)
36 : m_client(client)
37{
38 DisplayRefreshMonitorManager::sharedManager().registerClient(*this);
39 DisplayRefreshMonitorManager::sharedManager().windowScreenDidChange(displayID, *this);
40 DisplayRefreshMonitorManager::sharedManager().scheduleAnimation(*this);
41}
42#else
43GraphicsLayerUpdater::GraphicsLayerUpdater(GraphicsLayerUpdaterClient&, PlatformDisplayID)
44{
45}
46#endif
47
48GraphicsLayerUpdater::~GraphicsLayerUpdater()
49{
50 // ~DisplayRefreshMonitorClient unregisters us as a client.
51}
52
53void GraphicsLayerUpdater::scheduleUpdate()
54{
55 if (m_scheduled)
56 return;
57
58#if USE(REQUEST_ANIMATION_FRAME_DISPLAY_MONITOR)
59 DisplayRefreshMonitorManager::sharedManager().scheduleAnimation(*this);
60#endif
61 m_scheduled = true;
62}
63
64void GraphicsLayerUpdater::screenDidChange(PlatformDisplayID displayID)
65{
66#if USE(REQUEST_ANIMATION_FRAME_DISPLAY_MONITOR)
67 DisplayRefreshMonitorManager::sharedManager().windowScreenDidChange(displayID, *this);
68#else
69 UNUSED_PARAM(displayID);
70#endif
71}
72
73#if USE(REQUEST_ANIMATION_FRAME_DISPLAY_MONITOR)
74void GraphicsLayerUpdater::displayRefreshFired()
75{
76 m_scheduled = false;
77 m_client.flushLayersSoon(*this);
78}
79#endif
80
81#if USE(REQUEST_ANIMATION_FRAME_DISPLAY_MONITOR)
82RefPtr<DisplayRefreshMonitor> GraphicsLayerUpdater::createDisplayRefreshMonitor(PlatformDisplayID displayID) const
83{
84 return m_client.createDisplayRefreshMonitor(displayID);
85}
86#endif
87
88} // namespace WebCore
89