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      1 /*
      2  * Copyright 2012, The Android Open Source Project
      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  *  * Redistributions of source code must retain the above copyright
      8  *    notice, this list of conditions and the following disclaimer.
      9  *  * 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 THE COPYRIGHT HOLDERS ``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 THE COPYRIGHT OWNER 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 GraphicsOperationCollection_h
     27 #define GraphicsOperationCollection_h
     28 
     29 #if USE(ACCELERATED_COMPOSITING)
     30 
     31 #include "Color.h"
     32 #include "GraphicsOperation.h"
     33 #include "IntRect.h"
     34 #include "SkRefCnt.h"
     35 
     36 namespace WebCore {
     37 
     38 class PlatformGraphicsContext;
     39 
     40 class GraphicsOperationCollection : public SkRefCnt {
     41 public:
     42     GraphicsOperationCollection(const IntRect& drawArea);
     43     ~GraphicsOperationCollection();
     44 
     45     void apply(PlatformGraphicsContext* context);
     46     void append(GraphicsOperation::Operation* operation);
     47 
     48     bool isEmpty();
     49 
     50 private:
     51     IntRect m_drawArea;
     52     Vector<GraphicsOperation::Operation*> m_operations;
     53 };
     54 
     55 class AutoGraphicsOperationCollection {
     56 public:
     57    AutoGraphicsOperationCollection(const IntRect& area);
     58    ~AutoGraphicsOperationCollection();
     59    GraphicsContext* context() { return m_graphicsContext; }
     60    GraphicsOperationCollection* picture() { return m_graphicsOperationCollection; }
     61 
     62 private:
     63    GraphicsOperationCollection* m_graphicsOperationCollection;
     64    PlatformGraphicsContext* m_platformGraphicsContext;
     65    GraphicsContext* m_graphicsContext;
     66 };
     67 
     68 }
     69 
     70 #endif // USE(ACCELERATED_COMPOSITING)
     71 
     72 #endif // GraphicsOperationCollection_h
     73