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      1 /*
      2  * Copyright (C) 2011 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 #ifndef LayerTreeHostCAWin_h
     27 #define LayerTreeHostCAWin_h
     28 
     29 #include "HeaderDetection.h"
     30 
     31 #if HAVE(WKQCA)
     32 
     33 #include "LayerTreeHostCA.h"
     34 #include <WebCore/AbstractCACFLayerTreeHost.h>
     35 #include <wtf/HashSet.h>
     36 #include <wtf/RetainPtr.h>
     37 
     38 typedef struct _WKCACFView* WKCACFViewRef;
     39 
     40 namespace WebKit {
     41 
     42 class LayerTreeHostCAWin : public LayerTreeHostCA, private WebCore::AbstractCACFLayerTreeHost {
     43 public:
     44     static bool supportsAcceleratedCompositing();
     45 
     46     static PassRefPtr<LayerTreeHostCAWin> create(WebPage*);
     47     virtual ~LayerTreeHostCAWin();
     48 
     49 private:
     50     explicit LayerTreeHostCAWin(WebPage*);
     51 
     52     static void contextDidChangeCallback(WKCACFViewRef, void* info);
     53     void contextDidChange();
     54 
     55     // LayerTreeHost
     56     virtual void invalidate();
     57     virtual void forceRepaint();
     58     virtual void sizeDidChange(const WebCore::IntSize& newSize);
     59     virtual void scheduleLayerFlush();
     60     virtual bool participatesInDisplay();
     61     virtual bool needsDisplay();
     62     virtual double timeUntilNextDisplay();
     63     virtual void display(UpdateInfo&);
     64 
     65     // LayerTreeHostCA
     66     virtual void platformInitialize(LayerTreeContext&);
     67 
     68     // AbstractCACFLayerTreeHost
     69     virtual WebCore::PlatformCALayer* rootLayer() const;
     70     virtual void addPendingAnimatedLayer(PassRefPtr<WebCore::PlatformCALayer>);
     71     virtual void layerTreeDidChange();
     72     virtual void flushPendingLayerChangesNow();
     73 
     74     RetainPtr<WKCACFViewRef> m_view;
     75     HashSet<RefPtr<WebCore::PlatformCALayer> > m_pendingAnimatedLayers;
     76     bool m_isFlushingLayerChanges;
     77     double m_nextDisplayTime;
     78 };
     79 
     80 } // namespace WebKit
     81 
     82 #endif // HAVE(WKQCA)
     83 
     84 #endif // LayerTreeHostCAWin_h
     85