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      1 /*
      2  * Copyright (C) 2009 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 COMPUTER, 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 WKCACFLayerRenderer_h
     27 #define WKCACFLayerRenderer_h
     28 
     29 #if USE(ACCELERATED_COMPOSITING)
     30 
     31 #include "COMPtr.h"
     32 #include "Timer.h"
     33 #include "WKCACFLayer.h"
     34 
     35 #include <wtf/Noncopyable.h>
     36 
     37 #include <wtf/PassRefPtr.h>
     38 #include <wtf/RefPtr.h>
     39 #include <wtf/RetainPtr.h>
     40 
     41 #include <CoreGraphics/CGGeometry.h>
     42 
     43 interface IDirect3DDevice9;
     44 typedef struct _CACFContext* CACFContextRef;
     45 typedef struct _CARenderContext CARenderContext;
     46 typedef struct _CARenderOGLContext CARenderOGLContext;
     47 
     48 namespace WebCore {
     49 
     50 // FIXME: Currently there is a WKCACFLayerRenderer for each WebView and each
     51 // has its own CARenderOGLContext and Direct3DDevice9, which is inefficient.
     52 // (https://bugs.webkit.org/show_bug.cgi?id=31855)
     53 class WKCACFLayerRenderer : public Noncopyable {
     54 public:
     55     static PassOwnPtr<WKCACFLayerRenderer> create();
     56     ~WKCACFLayerRenderer();
     57 
     58     static bool acceleratedCompositingAvailable();
     59     static void didFlushContext(CACFContextRef);
     60 
     61     void setScrollFrame(const IntRect&);
     62     void setRootContents(CGImageRef);
     63     void setRootChildLayer(WebCore::PlatformLayer* layer);
     64     void setNeedsDisplay();
     65     void setHostWindow(HWND window) { m_hostWindow = window; createRenderer(); }
     66 
     67     void createRenderer();
     68     void destroyRenderer();
     69     void resize();
     70     void renderSoon();
     71 
     72 protected:
     73     WKCACFLayer* rootLayer() const { return m_rootLayer.get(); }
     74 
     75 private:
     76     WKCACFLayerRenderer();
     77 
     78     void renderTimerFired(Timer<WKCACFLayerRenderer>*);
     79 
     80     CGRect bounds() const;
     81 
     82     void initD3DGeometry();
     83     void resetDevice();
     84 
     85     void render(const Vector<CGRect>& dirtyRects = Vector<CGRect>());
     86     void paint();
     87 
     88     bool m_triedToCreateD3DRenderer;
     89     COMPtr<IDirect3DDevice9> m_d3dDevice;
     90     RefPtr<WKCACFLayer> m_rootLayer;
     91     RefPtr<WKCACFLayer> m_viewLayer;
     92     RefPtr<WKCACFLayer> m_scrollLayer;
     93     RefPtr<WKCACFLayer> m_rootChildLayer;
     94     RetainPtr<CACFContextRef> m_context;
     95     CARenderContext* m_renderContext;
     96     CARenderOGLContext* m_renderer;
     97     HWND m_hostWindow;
     98     Timer<WKCACFLayerRenderer> m_renderTimer;
     99     IntRect m_scrollFrame;
    100 
    101 #ifndef NDEBUG
    102     bool m_printTree;
    103 #endif
    104 };
    105 
    106 }
    107 
    108 #endif // USE(ACCELERATED_COMPOSITING)
    109 
    110 #endif // WKCACFLayerRenderer_h
    111