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      1 /*
      2  * Copyright 2011, 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 SurfaceCollectionManager_h
     27 #define SurfaceCollectionManager_h
     28 
     29 #include "TestExport.h"
     30 #include <utils/threads.h>
     31 
     32 class SkRect;
     33 class SkCanvas;
     34 
     35 namespace WebCore {
     36 
     37 class GLWebViewState;
     38 class IntRect;
     39 class TexturesResult;
     40 class SurfaceCollection;
     41 
     42 class TEST_EXPORT SurfaceCollectionManager {
     43 public:
     44     SurfaceCollectionManager();
     45 
     46     ~SurfaceCollectionManager();
     47 
     48     bool updateWithSurfaceCollection(SurfaceCollection* collection, bool brandNew);
     49 
     50     void updateScrollableLayer(int layerId, int x, int y);
     51 
     52     int drawGL(double currentTime, IntRect& viewRect,
     53                 SkRect& visibleContentRect, float scale,
     54                 bool scrolling, bool singleSurfaceMode,
     55                 bool* collectionsSwappedPtr, bool* newCollectionHasAnimPtr,
     56                 TexturesResult* texturesResultPtr, bool shouldDraw);
     57 
     58 private:
     59     void swap();
     60     void clearCollections();
     61     void updatePaintingCollection(SurfaceCollection* newCollection);
     62     int singleSurfaceModeInvalidation(bool hasRunningAnimation, bool scrolling, bool shouldDraw);
     63     SurfaceCollection* m_drawingCollection;
     64     SurfaceCollection* m_paintingCollection;
     65     SurfaceCollection* m_queuedCollection;
     66 
     67     bool m_fastSwapMode;
     68     // Used in single surface mode only. True if the previous frame is scrolling.
     69     bool m_previouslyScrolling;
     70     // Used in single surface mode only. True if there is a new painting tree
     71     // added for the current frame.
     72     bool m_newPaintingCollection;
     73 };
     74 
     75 } // namespace WebCore
     76 
     77 #endif //#define SurfaceCollectionManager_h
     78