2 * Copyright (C) 2009 Apple Inc. All rights reserved.
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5 * modification, are permitted provided that the following conditions
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26 #ifndef CACFLayerTreeHost_h
27 #define CACFLayerTreeHost_h
29 #if USE(ACCELERATED_COMPOSITING)
34 #include <wtf/HashSet.h>
35 #include <wtf/PassRefPtr.h>
36 #include <wtf/RefCounted.h>
37 #include <wtf/RefPtr.h>
38 #include <wtf/RetainPtr.h>
39 #include <wtf/Vector.h>
41 #include <CoreGraphics/CGGeometry.h>
43 interface IDirect3DDevice9;
46 typedef struct CGImage* CGImageRef;
50 class PlatformCALayer;
52 class CACFLayerTreeHostClient {
54 virtual ~CACFLayerTreeHostClient() { }
55 virtual bool shouldRender() const = 0;
56 virtual void flushPendingGraphicsLayerChanges() { }
59 // FIXME: Currently there is a CACFLayerTreeHost for each WebView and each
60 // has its own CARenderOGLContext and Direct3DDevice9, which is inefficient.
61 // (https://bugs.webkit.org/show_bug.cgi?id=31855)
62 class CACFLayerTreeHost : public RefCounted<CACFLayerTreeHost> {
63 friend PlatformCALayer;
66 static PassRefPtr<CACFLayerTreeHost> create();
69 static bool acceleratedCompositingAvailable();
71 void setClient(CACFLayerTreeHostClient* client) { m_client = client; }
73 void setRootChildLayer(PlatformCALayer*);
74 void layerTreeDidChange();
78 void flushPendingGraphicsLayerChangesSoon();
81 PlatformCALayer* rootLayer() const;
82 void addPendingAnimatedLayer(PassRefPtr<PlatformCALayer>);
87 bool createRenderer();
88 void destroyRenderer();
90 void renderTimerFired(Timer<CACFLayerTreeHost>*);
92 CGRect bounds() const;
94 void initD3DGeometry();
96 // Call this when the device window has changed size or when IDirect3DDevice9::Present returns
97 // D3DERR_DEVICELOST. Returns true if the device was recovered, false if rendering must be
98 // aborted and reattempted soon.
99 enum ResetReason { ChangedWindowSize, LostDevice };
100 bool resetDevice(ResetReason);
102 void render(const Vector<CGRect>& dirtyRects = Vector<CGRect>());
104 CACFLayerTreeHostClient* m_client;
105 bool m_mightBeAbleToCreateDeviceLater;
106 COMPtr<IDirect3DDevice9> m_d3dDevice;
107 RefPtr<PlatformCALayer> m_rootLayer;
108 RefPtr<PlatformCALayer> m_rootChildLayer;
109 WKCACFContext* m_context;
111 Timer<CACFLayerTreeHost> m_renderTimer;
112 bool m_mustResetLostDeviceBeforeRendering;
113 bool m_shouldFlushPendingGraphicsLayerChanges;
114 HashSet<RefPtr<PlatformCALayer> > m_pendingAnimatedLayers;
123 #endif // USE(ACCELERATED_COMPOSITING)
125 #endif // CACFLayerTreeHost_h