/*
 * Copyright (c) 2019-2020, NVIDIA CORPORATION.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *     * Redistributions of source code must retain the above copyright
 *       notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above copyright
 *       notice, this list of conditions and the following disclaimer in the
 *       documentation and/or other materials provided with the distribution.
 *     * Neither the name of the NVIDIA CORPORATION nor the
 *       names of its contributors may be used to endorse or promote products
 *       derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL NVIDIA CORPORATION BE LIABLE FOR ANY
 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#ifndef TT2I_ENGINEDRIVER_H
#define TT2I_ENGINEDRIVER_H

#include "trtPtr.h"

#include "NvInfer.h"

namespace tts
{

/**
 * @brief This class acts a parent for classes depending on TRT engines.
 */
class EngineDriver
{
public:
    /**
     * @brief Create a new EngineDriver class.
     *
     * @param engine The engine to wrap.
     */
  EngineDriver(TRTPtr<nvinfer1::ICudaEngine> engine);

  /**
   * @brief Virtual destructor.
   */
  virtual ~EngineDriver() = default;

  /**
   * @brief Get the wrapped engine in a non-mutable state.
   *
   * @return The engine.
   */
  const nvinfer1::ICudaEngine& getEngine() const;

  /**
   * @brief Get the wrapped engine in a mutable state.
   *
   * @return The engine.
   */
  nvinfer1::ICudaEngine& getEngine();

  /**
   * @brief Get the maximum batch size supported by the wrapped engine.
   *
   * @return The maximum batch size.
   */
  int getMaxBatchSize() const;

private:
  TRTPtr<nvinfer1::ICudaEngine> mEngine;
};

} // namespace tts

#endif
