dali-toolkit/internal/visuals/animated-vector-image/vector-rasterize-thread.h

   1 #ifndef DALI_TOOLKIT_VECTOR_IMAGE_RASTERIZE_THREAD_H
   2 #define DALI_TOOLKIT_VECTOR_IMAGE_RASTERIZE_THREAD_H
   3
   4 /*
   5  * Copyright (c) 2019 Samsung Electronics Co., Ltd.
   6  *
   7  * Licensed under the Apache License, Version 2.0 (the "License");
   8  * you may not use this file except in compliance with the License.
   9  * You may obtain a copy of the License at
  10  *
  11  * http://www.apache.org/licenses/LICENSE-2.0
  12  *
  13  * Unless required by applicable law or agreed to in writing, software
  14  * distributed under the License is distributed on an "AS IS" BASIS,
  15  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  16  * See the License for the specific language governing permissions and
  17  * limitations under the License.
  18  */
  19
  20 // EXTERNAL INCLUDES
  21 #include <vector>
  22 #include <memory>
  23 #include <dali/devel-api/threading/conditional-wait.h>
  24 #include <dali/devel-api/threading/thread.h>
  25 #include <dali/integration-api/adaptor-framework/log-factory-interface.h>
  26
  27 // INTERNAL INCLUDES
  28 #include <dali-toolkit/internal/visuals/animated-vector-image/vector-animation-task.h>
  29
  30 namespace Dali
  31 {
  32
  33 namespace Toolkit
  34 {
  35
  36 namespace Internal
  37 {
  38
  39 /**
  40  * The worker thread for vector image rasterization.
  41  */
  42 class VectorRasterizeThread : public Thread
  43 {
  44 public:
  45
  46   /**
  47    * @brief Constructor.
  48    */
  49   VectorRasterizeThread();
  50
  51   /**
  52    * @brief Destructor.
  53    */
  54   virtual ~VectorRasterizeThread();
  55
  56   /**
  57    * The callback is called from the rasterize thread after the rasterization is completed.
  58    * @param[in] callBack  The function to call.
  59    */
  60   void SetCompletedCallback( CallbackBase* callback );
  61
  62   /**
  63    * Add a task to rasterize.
  64    *
  65    * @param[in] task The task to rasterize
  66    */
  67   void AddTask( VectorAnimationTaskPtr task );
  68
  69 protected:
  70
  71   /**
  72    * @brief The entry function of the worker thread.
  73    *        It rasterizes the vector image.
  74    */
  75   void Run() override;
  76
  77 private:
  78
  79   /**
  80    * Rasterizes the tasks.
  81    */
  82   void Rasterize();
  83
  84 private:
  85
  86   // Undefined
  87   VectorRasterizeThread( const VectorRasterizeThread& thread ) = delete;
  88
  89   // Undefined
  90   VectorRasterizeThread& operator=( const VectorRasterizeThread& thread ) = delete;
  91
  92 private:
  93
  94   std::vector< VectorAnimationTaskPtr > mRasterizeTasks;
  95   ConditionalWait                       mConditionalWait;
  96   std::unique_ptr< CallbackBase >       mCompletedCallback;
  97   bool                                  mDestroyThread;  ///< Whether the thread be destroyed
  98   bool                                  mIsThreadStarted;
  99   const Dali::LogFactoryInterface&      mLogFactory; ///< The log factory
 100
 101 };
 102
 103 } // namespace Internal
 104
 105 } // namespace Toolkit
 106
 107 } // namespace Dali
 108
 109 #endif // DALI_TOOLKIT_VECTOR_IMAGE_RASTERIZE_THREAD_H