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 <dali/devel-api/adaptor-framework/event-thread-callback.h>
  22 #include <dali/devel-api/threading/conditional-wait.h>
  23 #include <dali/devel-api/threading/thread.h>
  24 #include <dali/integration-api/adaptors/log-factory-interface.h>
  25 #include <vector>
  26 #include <memory>
  27 //#include <string>
  28
  29 // INTERNAL INCLUDES
  30 #include <dali-toolkit/internal/visuals/animated-vector-image/vector-animation-task.h>
  31
  32 namespace Dali
  33 {
  34
  35 namespace Toolkit
  36 {
  37
  38 namespace Internal
  39 {
  40
  41 /**
  42  * The worker thread for vector image rasterization.
  43  */
  44 class VectorRasterizeThread : public Thread
  45 {
  46 public:
  47
  48   /**
  49    * @brief Constructor.
  50    */
  51   VectorRasterizeThread();
  52
  53   /**
  54    * @brief Destructor.
  55    */
  56   virtual ~VectorRasterizeThread();
  57
  58   /**
  59    * The callback is called from the rasterize thread after the rasterization is completed.
  60    * @param[in] callBack  The function to call.
  61    */
  62   void SetCompletedCallback( CallbackBase* callback );
  63
  64   /**
  65    * Add a task to rasterize.
  66    *
  67    * @param[in] task The task to rasterize
  68    */
  69   void AddTask( VectorAnimationTaskPtr task );
  70
  71 protected:
  72
  73   /**
  74    * @brief The entry function of the worker thread.
  75    *        It rasterizes the vector image.
  76    */
  77   void Run() override;
  78
  79 private:
  80
  81   /**
  82    * Rasterizes the tasks.
  83    */
  84   void Rasterize();
  85
  86 private:
  87
  88   // Undefined
  89   VectorRasterizeThread( const VectorRasterizeThread& thread ) = delete;
  90
  91   // Undefined
  92   VectorRasterizeThread& operator=( const VectorRasterizeThread& thread ) = delete;
  93
  94 private:
  95
  96   std::vector< VectorAnimationTaskPtr > mRasterizeTasks;
  97   ConditionalWait                       mConditionalWait;
  98   std::unique_ptr< CallbackBase >       mCompletedCallback;
  99   bool                                  mDestroyThread;  ///< Whether the thread be destroyed
 100   bool                                  mIsThreadStarted;
 101   const Dali::LogFactoryInterface&      mLogFactory; ///< The log factory
 102
 103 };
 104
 105 } // namespace Internal
 106
 107 } // namespace Toolkit
 108
 109 } // namespace Dali
 110
 111 #endif // DALI_TOOLKIT_VECTOR_IMAGE_RASTERIZE_THREAD_H