/**
 ******************************************************************************
 * Xenia : Xbox 360 Emulator Research Project                                 *
 ******************************************************************************
 * Copyright 2013 Ben Vanik. All rights reserved.                             *
 * Released under the BSD license - see LICENSE in the root for more details. *
 ******************************************************************************
 */

#ifndef XENIA_GPU_RING_BUFFER_WORKER_H_
#define XENIA_GPU_RING_BUFFER_WORKER_H_

#include <xenia/core.h>


namespace xe {
namespace gpu {


class RingBufferWorker {
public:
  RingBufferWorker(xe_memory_ref memory);
  virtual ~RingBufferWorker();

  xe_memory_ref memory();

  void Initialize(uint32_t ptr, uint32_t page_count);

  void UpdateWritePointer(uint32_t value);

protected:
  static void ThreadStartThunk(RingBufferWorker* this_ptr) {
    this_ptr->ThreadStart();
  }
  void ThreadStart();

protected:
  xe_memory_ref   memory_;
  xe_thread_ref   thread_;
  bool            running_;
  HANDLE          read_ptr_index_event_;
  HANDLE          write_ptr_index_event_;
  
  uint32_t        primary_buffer_ptr_;
  uint32_t        primary_buffer_size_;
  uint32_t        secondary_buffer_ptr_;
  uint32_t        secondary_buffer_size_;
  uint32_t        read_ptr_index_;
  uint32_t        write_ptr_index_;
};


}  // namespace gpu
}  // namespace xe


#endif  // XENIA_GPU_RING_BUFFER_WORKER_H_