1/*
2 * Copyright (C) 2009, 2010, 2011, 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. ``AS IS'' AND ANY
14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26#ifndef CACFLayerTreeHost_h
27#define CACFLayerTreeHost_h
28
29#include "AbstractCACFLayerTreeHost.h"
30#include "COMPtr.h"
31#include "Timer.h"
32
33#include <wtf/HashSet.h>
34#include <wtf/PassRefPtr.h>
35#include <wtf/RefCounted.h>
36#include <wtf/RefPtr.h>
37#include <wtf/RetainPtr.h>
38#include <wtf/Vector.h>
39
40#include <CoreGraphics/CGGeometry.h>
41
42interface IDirect3DDevice9;
43struct WKCACFContext;
44
45typedef struct CGImage* CGImageRef;
46
47#if USE(AVFOUNDATION)
48struct GraphicsDeviceAdapter;
49#endif
50
51namespace WebCore {
52
53class CACFLayerTreeHostClient;
54class PlatformCALayer;
55
56class CACFLayerTreeHost : public RefCounted<CACFLayerTreeHost>, private AbstractCACFLayerTreeHost {
57public:
58    static PassRefPtr<CACFLayerTreeHost> create();
59    virtual ~CACFLayerTreeHost();
60
61    static bool acceleratedCompositingAvailable();
62
63    void setClient(CACFLayerTreeHostClient* client) { m_client = client; }
64
65    void setRootChildLayer(PlatformCALayer*);
66    void setWindow(HWND);
67    virtual void paint();
68    virtual void resize() = 0;
69    void flushPendingGraphicsLayerChangesSoon();
70    virtual void setShouldInvertColors(bool);
71#if USE(AVFOUNDATION)
72    virtual GraphicsDeviceAdapter* graphicsDeviceAdapter() const { return 0; }
73#endif
74
75    virtual bool createRenderer() = 0;
76
77    // AbstractCACFLayerTreeHost
78    virtual void flushPendingLayerChangesNow();
79
80protected:
81    CACFLayerTreeHost();
82
83    CGRect bounds() const;
84    HWND window() const { return m_window; }
85    void notifyAnimationsStarted();
86
87    // AbstractCACFLayerTreeHost
88    virtual PlatformCALayer* rootLayer() const;
89
90    virtual void destroyRenderer();
91    virtual void contextDidChange();
92
93private:
94    void initialize();
95
96    // AbstractCACFLayerTreeHost
97    virtual void addPendingAnimatedLayer(PassRefPtr<PlatformCALayer>);
98    virtual void layerTreeDidChange();
99
100
101    virtual void flushContext() = 0;
102    virtual CFTimeInterval lastCommitTime() const = 0;
103    virtual void render(const Vector<CGRect>& dirtyRects = Vector<CGRect>()) = 0;
104    virtual void initializeContext(void* userData, PlatformCALayer*) = 0;
105
106    CACFLayerTreeHostClient* m_client;
107    RefPtr<PlatformCALayer> m_rootLayer;
108    RefPtr<PlatformCALayer> m_rootChildLayer;
109    HashSet<RefPtr<PlatformCALayer> > m_pendingAnimatedLayers;
110    HWND m_window;
111    bool m_shouldFlushPendingGraphicsLayerChanges;
112    bool m_isFlushingLayerChanges;
113
114#if !ASSERT_DISABLED
115    enum { WindowNotSet, WindowSet, WindowCleared } m_state;
116#endif
117};
118
119}
120
121#endif // CACFLayerTreeHost_h
122