1 /* 2 * Copyright 2010, 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 TexturesGenerator_h 27 #define TexturesGenerator_h 28 29 #if USE(ACCELERATED_COMPOSITING) 30 31 #include "QueuedOperation.h" 32 #include "TransferQueue.h" 33 #include <wtf/HashMap.h> 34 #include <wtf/Vector.h> 35 36 #include <utils/threads.h> 37 38 namespace WebCore { 39 40 using namespace android; 41 42 class TilesManager; 43 44 class TexturesGenerator : public Thread { 45 public: 46 TexturesGenerator(TilesManager* instance); 47 virtual ~TexturesGenerator(); 48 49 virtual status_t readyToRun(); 50 51 bool tryUpdateOperationWithPainter(Tile* tile, TilePainter* painter); 52 53 void removeOperationsForFilter(OperationFilter* filter); 54 55 void scheduleOperation(QueuedOperation* operation); 56 57 // low res tiles are put at or above this cutoff when not scrolling, 58 // signifying that they should be deferred 59 static const int gDeferPriorityCutoff = 500000000; 60 61 private: 62 QueuedOperation* popNext(); 63 virtual bool threadLoop(); 64 WTF::Vector<QueuedOperation*> mRequestedOperations; 65 WTF::HashMap<void*, QueuedOperation*> mRequestedOperationsHash; 66 android::Mutex mRequestedOperationsLock; 67 android::Condition mRequestedOperationsCond; 68 TilesManager* m_tilesManager; 69 70 bool m_deferredMode; 71 BaseRenderer* m_renderer; 72 73 // defer painting for one second if best in queue has priority 74 // QueuedOperation::gDeferPriorityCutoff or higher 75 static const nsecs_t gDeferNsecs = 1000000000; 76 }; 77 78 } // namespace WebCore 79 80 #endif // USE(ACCELERATED_COMPOSITING) 81 #endif // TexturesGenerator_h 82
