text: /****************************************************************************
  *
  *    Copyright (c) 2021 Vivante Corporation
  *
  *    Permission is hereby granted, free of charge, to any person obtaining a
  *    copy of this software and associated documentation files (the "Software"),
  *    to deal in the Software without restriction, including without limitation
  *    the rights to use, copy, modify, merge, publish, distribute, sublicense,
  *    and/or sell copies of the Software, and to permit persons to whom the
  *    Software is furnished to do so, subject to the following conditions:
  *
  *    The above copyright notice and this permission notice shall be included in
  *    all copies or substantial portions of the Software.
  *
  *    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  *    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  *    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  *    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  *    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  *    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  *    DEALINGS IN THE SOFTWARE.
  *
  *****************************************************************************/
  
  #ifndef TIME_LITE_HANDLE_PRIVATE_H_
  #define TIME_LITE_HANDLE_PRIVATE_H_
  
  #include <mutex>
  #include "tim/lite/handle.h"
  #include "vip_lite.h"
  
  namespace tim {
  namespace lite {
  
  enum class HandleFlushType {
      HandleFlush = 0,
      HandleInvalidate = 1
  };
  
  class HandleImpl : public Handle {
   public:
    HandleImpl(uint8_t* buffer, size_t size)
        : buffer_(buffer), buffer_size_(size) {}
  
    bool CreateVipInputBuffer(vip_network network, uint32_t in_idx);
    bool CreateVipPOutputBuffer(vip_network network, uint32_t out_idx);
    uint32_t Index() { return index_; }
    vip_buffer VipHandle() { return handle_; }
    bool Flush() override;
    bool Invalidate() override;
  
    ~HandleImpl();
  
   private:
    void SetIndex(uint32_t idx) { index_ = idx; }
    uint8_t* buffer_ = nullptr;
    size_t buffer_size_ = 0;
    vip_buffer handle_;
    uint32_t index_;
  };
  
  }
  }
  
  #endif