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/******************************************************************************
 * Copyright (c) 2011-2021, NVIDIA CORPORATION.  All rights reserved.
 * Modifications Copyright (c) 2022, Advanced Micro Devices, Inc.  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 HIPCUB_ROCPRIM_DEVICE_DEVICE_ADJACENT_DIFFERENCE_HPP_
#define HIPCUB_ROCPRIM_DEVICE_DEVICE_ADJACENT_DIFFERENCE_HPP_

#include "../config.hpp"

#include <cub/thread/thread_operators.cuh>
#include <cub/rocprim/device/device_adjacent_difference.hpp>

BEGIN_HIPCUB_NAMESPACE

struct DeviceAdjacentDifference
{
    template <typename InputIteratorT,
              typename OutputIteratorT,
              typename DifferenceOpT = ::cub::Difference>
    static HIPCUB_RUNTIME_FUNCTION cudaError_t
    SubtractLeftCopy(void *d_temp_storage,
                     std::size_t &temp_storage_bytes,
                     InputIteratorT d_input,
                     OutputIteratorT d_output,
                     std::size_t num_items,
                     DifferenceOpT difference_op = {},
                     cudaStream_t stream = 0,
                     bool debug_synchronous = false)
    {
        return (cudaError_t)::rocprim::adjacent_difference(
            d_temp_storage, temp_storage_bytes, d_input, d_output,
            num_items, difference_op, stream, debug_synchronous
        );
    }

    template <typename RandomAccessIteratorT,
              typename DifferenceOpT = ::cub::Difference>
    static HIPCUB_RUNTIME_FUNCTION cudaError_t
    SubtractLeft(void *d_temp_storage,
                 std::size_t &temp_storage_bytes,
                 RandomAccessIteratorT d_input,
                 std::size_t num_items,
                 DifferenceOpT difference_op = {},
                 cudaStream_t stream = 0,
                 bool debug_synchronous = false)
    {
        return (cudaError_t)::rocprim::adjacent_difference_inplace(
            d_temp_storage, temp_storage_bytes, d_input,
            num_items, difference_op, stream, debug_synchronous
        );
    }

    template <typename InputIteratorT,
              typename OutputIteratorT,
              typename DifferenceOpT = ::cub::Difference>
    static HIPCUB_RUNTIME_FUNCTION cudaError_t
    SubtractRightCopy(void *d_temp_storage,
                      std::size_t &temp_storage_bytes,
                      InputIteratorT d_input,
                      OutputIteratorT d_output,
                      std::size_t num_items,
                      DifferenceOpT difference_op = {},
                      cudaStream_t stream = 0,
                      bool debug_synchronous = false)
    {
        return (cudaError_t)::rocprim::adjacent_difference_right(
            d_temp_storage, temp_storage_bytes, d_input, d_output,
            num_items, difference_op, stream, debug_synchronous
        );
    }

    template <typename RandomAccessIteratorT,
              typename DifferenceOpT = ::cub::Difference>
    static HIPCUB_RUNTIME_FUNCTION cudaError_t
    SubtractRight(void *d_temp_storage,
                  std::size_t &temp_storage_bytes,
                  RandomAccessIteratorT d_input,
                  std::size_t num_items,
                  DifferenceOpT difference_op = {},
                  cudaStream_t stream = 0,
                  bool debug_synchronous = false)
    {
        return (cudaError_t)::rocprim::adjacent_difference_right_inplace(
            d_temp_storage, temp_storage_bytes, d_input,
            num_items, difference_op, stream, debug_synchronous
        );
    }
};

END_HIPCUB_NAMESPACE

#endif // HIPCUB_ROCPRIM_DEVICE_DEVICE_ADJACENT_DIFFERENCE_HPP_