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/*
* Copyright (C) 2009 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. ``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 COMPUTER, INC. OR
* 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.
*/
#ifndef CACFLayerTreeHost_h
#define CACFLayerTreeHost_h
#if USE(ACCELERATED_COMPOSITING)
#include "COMPtr.h"
#include "Timer.h"
#include <wtf/HashSet.h>
#include <wtf/PassRefPtr.h>
#include <wtf/RefCounted.h>
#include <wtf/RefPtr.h>
#include <wtf/RetainPtr.h>
#include <wtf/Vector.h>
#include <CoreGraphics/CGGeometry.h>
interface IDirect3DDevice9;
struct WKCACFContext;
typedef struct CGImage* CGImageRef;
namespace WebCore {
class PlatformCALayer;
class CACFLayerTreeHostClient {
public:
virtual ~CACFLayerTreeHostClient() { }
virtual void flushPendingGraphicsLayerChanges() { }
};
// FIXME: Currently there is a CACFLayerTreeHost for each WebView and each
// has its own CARenderOGLContext and Direct3DDevice9, which is inefficient.
// (https://bugs.webkit.org/show_bug.cgi?id=31855)
class CACFLayerTreeHost : public RefCounted<CACFLayerTreeHost> {
friend PlatformCALayer;
public:
static PassRefPtr<CACFLayerTreeHost> create();
~CACFLayerTreeHost();
static bool acceleratedCompositingAvailable();
void setClient(CACFLayerTreeHostClient* client) { m_client = client; }
void setRootChildLayer(PlatformCALayer*);
void layerTreeDidChange();
void setWindow(HWND);
void paint();
void resize();
void flushPendingGraphicsLayerChangesSoon();
void flushPendingLayerChangesNow();
protected:
PlatformCALayer* rootLayer() const;
void addPendingAnimatedLayer(PassRefPtr<PlatformCALayer>);
private:
CACFLayerTreeHost();
bool createRenderer();
void destroyRenderer();
void renderSoon();
void renderTimerFired(Timer<CACFLayerTreeHost>*);
CGRect bounds() const;
void initD3DGeometry();
// Call this when the device window has changed size or when IDirect3DDevice9::Present returns
// D3DERR_DEVICELOST. Returns true if the device was recovered, false if rendering must be
// aborted and reattempted soon.
enum ResetReason { ChangedWindowSize, LostDevice };
bool resetDevice(ResetReason);
void render(const Vector<CGRect>& dirtyRects = Vector<CGRect>());
CACFLayerTreeHostClient* m_client;
bool m_mightBeAbleToCreateDeviceLater;
COMPtr<IDirect3DDevice9> m_d3dDevice;
RefPtr<PlatformCALayer> m_rootLayer;
RefPtr<PlatformCALayer> m_rootChildLayer;
WKCACFContext* m_context;
HWND m_window;
Timer<CACFLayerTreeHost> m_renderTimer;
bool m_mustResetLostDeviceBeforeRendering;
bool m_shouldFlushPendingGraphicsLayerChanges;
bool m_isFlushingLayerChanges;
HashSet<RefPtr<PlatformCALayer> > m_pendingAnimatedLayers;
#ifndef NDEBUG
bool m_printTree;
#endif
};
}
#endif // USE(ACCELERATED_COMPOSITING)
#endif // CACFLayerTreeHost_h
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