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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. ``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 PlatformCALayerWinInternal_h
     27 #define PlatformCALayerWinInternal_h
     28 
     29 #if USE(ACCELERATED_COMPOSITING)
     30 
     31 #include <CoreGraphics/CGGeometry.h>
     32 #include <wtf/RetainPtr.h>
     33 #include <wtf/Vector.h>
     34 
     35 typedef struct _CACFLayer *CACFLayerRef;
     36 typedef struct CGContext *CGContextRef;
     37 
     38 namespace WebCore {
     39 
     40 class FloatRect;
     41 class PlatformCALayer;
     42 
     43 typedef Vector<RefPtr<PlatformCALayer> > PlatformCALayerList;
     44 
     45 class PlatformCALayerWinInternal {
     46 public:
     47     PlatformCALayerWinInternal(PlatformCALayer*);
     48     ~PlatformCALayerWinInternal();
     49 
     50     void displayCallback(CACFLayerRef, CGContextRef);
     51     void setNeedsDisplay(const FloatRect*);
     52     PlatformCALayer* owner() const { return m_owner; }
     53 
     54     void setSublayers(const PlatformCALayerList&);
     55     void getSublayers(PlatformCALayerList&) const;
     56     void removeAllSublayers();
     57     void insertSublayer(PlatformCALayer*, size_t);
     58     size_t sublayerCount() const;
     59     int indexOfSublayer(const PlatformCALayer* reference);
     60 
     61     void setBounds(const FloatRect&);
     62     void setFrame(const FloatRect&);
     63 
     64 private:
     65     void internalSetNeedsDisplay(const FloatRect*);
     66     PlatformCALayer* sublayerAtIndex(int) const;
     67 
     68     static void tileDisplayCallback(CACFLayerRef, CGContextRef);
     69 
     70     void drawTile(CACFLayerRef, CGContextRef);
     71     CGSize constrainedSize(const CGSize&) const;
     72     void addTile();
     73     void removeTile();
     74     CACFLayerRef tileAtIndex(int);
     75     int tileCount() const;
     76     void updateTiles();
     77 
     78     PlatformCALayer* m_owner;
     79 
     80     CGSize m_tileSize;
     81     CGSize m_constrainedSize;
     82     RetainPtr<CACFLayerRef> m_tileParent;
     83 };
     84 
     85 }
     86 
     87 #endif // USE(ACCELERATED_COMPOSITING)
     88 
     89 #endif // PlatformCALayerWinInternal_h
     90