/******************************************************************************
 * Copyright (c) 2010-2011, Duane Merrill.  All rights reserved.
 * Copyright (c) 2011-2018, NVIDIA CORPORATION.  All rights reserved.
 * Modifications Copyright (c) 2017-2020, 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_SEGMENTED_RADIX_SORT_HPP_
#define HIPCUB_ROCPRIM_DEVICE_DEVICE_SEGMENTED_RADIX_SORT_HPP_

#include "../config.hpp"

#include "../util_type.cuh"

#include <cub/rocprim/device/device_segmented_radix_sort.hpp>

BEGIN_HIPCUB_NAMESPACE

struct DeviceSegmentedRadixSort
{
    template<typename KeyT, typename ValueT, typename OffsetIteratorT>
    HIPCUB_RUNTIME_FUNCTION static
    cudaError_t SortPairs(void * d_temp_storage,
                         size_t& temp_storage_bytes,
                         const KeyT * d_keys_in,
                         KeyT * d_keys_out,
                         const ValueT * d_values_in,
                         ValueT * d_values_out,
                         int num_items,
                         int num_segments,
                         OffsetIteratorT d_begin_offsets,
                         OffsetIteratorT d_end_offsets,
                         int begin_bit = 0,
                         int end_bit = sizeof(KeyT) * 8,
                         cudaStream_t stream = 0,
                         bool debug_synchronous = false)
    {
        return (cudaError_t)::rocprim::segmented_radix_sort_pairs(
            d_temp_storage, temp_storage_bytes,
            d_keys_in, d_keys_out, d_values_in, d_values_out, num_items,
            num_segments, d_begin_offsets, d_end_offsets,
            begin_bit, end_bit,
            stream, debug_synchronous
        );
    }

    template<typename KeyT, typename ValueT, typename OffsetIteratorT>
    HIPCUB_RUNTIME_FUNCTION static
    cudaError_t SortPairs(void * d_temp_storage,
                         size_t& temp_storage_bytes,
                         DoubleBuffer<KeyT>& d_keys,
                         DoubleBuffer<ValueT>& d_values,
                         int num_items,
                         int num_segments,
                         OffsetIteratorT d_begin_offsets,
                         OffsetIteratorT d_end_offsets,
                         int begin_bit = 0,
                         int end_bit = sizeof(KeyT) * 8,
                         cudaStream_t stream = 0,
                         bool debug_synchronous = false)
    {
        ::rocprim::double_buffer<KeyT> d_keys_db = detail::to_double_buffer(d_keys);
        ::rocprim::double_buffer<ValueT> d_values_db = detail::to_double_buffer(d_values);
        cudaError_t error = (cudaError_t)::rocprim::segmented_radix_sort_pairs(
            d_temp_storage, temp_storage_bytes,
            d_keys_db, d_values_db, num_items,
            num_segments, d_begin_offsets, d_end_offsets,
            begin_bit, end_bit,
            stream, debug_synchronous
        );
        detail::update_double_buffer(d_keys, d_keys_db);
        detail::update_double_buffer(d_values, d_values_db);
        return error;
    }

    template<typename KeyT, typename ValueT, typename OffsetIteratorT>
    HIPCUB_RUNTIME_FUNCTION static
    cudaError_t SortPairsDescending(void * d_temp_storage,
                                   size_t& temp_storage_bytes,
                                   const KeyT * d_keys_in,
                                   KeyT * d_keys_out,
                                   const ValueT * d_values_in,
                                   ValueT * d_values_out,
                                   int num_items,
                                   int num_segments,
                                   OffsetIteratorT d_begin_offsets,
                                   OffsetIteratorT d_end_offsets,
                                   int begin_bit = 0,
                                   int end_bit = sizeof(KeyT) * 8,
                                   cudaStream_t stream = 0,
                                   bool debug_synchronous = false)
    {
        return (cudaError_t)::rocprim::segmented_radix_sort_pairs_desc(
            d_temp_storage, temp_storage_bytes,
            d_keys_in, d_keys_out, d_values_in, d_values_out, num_items,
            num_segments, d_begin_offsets, d_end_offsets,
            begin_bit, end_bit,
            stream, debug_synchronous
        );
    }

    template<typename KeyT, typename ValueT, typename OffsetIteratorT>
    HIPCUB_RUNTIME_FUNCTION static
    cudaError_t SortPairsDescending(void * d_temp_storage,
                                   size_t& temp_storage_bytes,
                                   DoubleBuffer<KeyT>& d_keys,
                                   DoubleBuffer<ValueT>& d_values,
                                   int num_items,
                                   int num_segments,
                                   OffsetIteratorT d_begin_offsets,
                                   OffsetIteratorT d_end_offsets,
                                   int begin_bit = 0,
                                   int end_bit = sizeof(KeyT) * 8,
                                   cudaStream_t stream = 0,
                                   bool debug_synchronous = false)
    {
        ::rocprim::double_buffer<KeyT> d_keys_db = detail::to_double_buffer(d_keys);
        ::rocprim::double_buffer<ValueT> d_values_db = detail::to_double_buffer(d_values);
        cudaError_t error = (cudaError_t)::rocprim::segmented_radix_sort_pairs_desc(
            d_temp_storage, temp_storage_bytes,
            d_keys_db, d_values_db, num_items,
            num_segments, d_begin_offsets, d_end_offsets,
            begin_bit, end_bit,
            stream, debug_synchronous
        );
        detail::update_double_buffer(d_keys, d_keys_db);
        detail::update_double_buffer(d_values, d_values_db);
        return error;
    }

    template<typename KeyT, typename OffsetIteratorT>
    HIPCUB_RUNTIME_FUNCTION static
    cudaError_t SortKeys(void * d_temp_storage,
                        size_t& temp_storage_bytes,
                        const KeyT * d_keys_in,
                        KeyT * d_keys_out,
                        int num_items,
                        int num_segments,
                        OffsetIteratorT d_begin_offsets,
                        OffsetIteratorT d_end_offsets,
                        int begin_bit = 0,
                        int end_bit = sizeof(KeyT) * 8,
                        cudaStream_t stream = 0,
                        bool debug_synchronous = false)
    {
        return (cudaError_t)::rocprim::segmented_radix_sort_keys(
            d_temp_storage, temp_storage_bytes,
            d_keys_in, d_keys_out, num_items,
            num_segments, d_begin_offsets, d_end_offsets,
            begin_bit, end_bit,
            stream, debug_synchronous
        );
    }

    template<typename KeyT, typename OffsetIteratorT>
    HIPCUB_RUNTIME_FUNCTION static
    cudaError_t SortKeys(void * d_temp_storage,
                        size_t& temp_storage_bytes,
                        DoubleBuffer<KeyT>& d_keys,
                        int num_items,
                        int num_segments,
                        OffsetIteratorT d_begin_offsets,
                        OffsetIteratorT d_end_offsets,
                        int begin_bit = 0,
                        int end_bit = sizeof(KeyT) * 8,
                        cudaStream_t stream = 0,
                        bool debug_synchronous = false)
    {
        ::rocprim::double_buffer<KeyT> d_keys_db = detail::to_double_buffer(d_keys);
        cudaError_t error = (cudaError_t)::rocprim::segmented_radix_sort_keys(
            d_temp_storage, temp_storage_bytes,
            d_keys_db, num_items,
            num_segments, d_begin_offsets, d_end_offsets,
            begin_bit, end_bit,
            stream, debug_synchronous
        );
        detail::update_double_buffer(d_keys, d_keys_db);
        return error;
    }

    template<typename KeyT, typename OffsetIteratorT>
    HIPCUB_RUNTIME_FUNCTION static
    cudaError_t SortKeysDescending(void * d_temp_storage,
                                  size_t& temp_storage_bytes,
                                  const KeyT * d_keys_in,
                                  KeyT * d_keys_out,
                                  int num_items,
                                  int num_segments,
                                  OffsetIteratorT d_begin_offsets,
                                  OffsetIteratorT d_end_offsets,
                                  int begin_bit = 0,
                                  int end_bit = sizeof(KeyT) * 8,
                                  cudaStream_t stream = 0,
                                  bool debug_synchronous = false)
    {
        return (cudaError_t)::rocprim::segmented_radix_sort_keys_desc(
            d_temp_storage, temp_storage_bytes,
            d_keys_in, d_keys_out, num_items,
            num_segments, d_begin_offsets, d_end_offsets,
            begin_bit, end_bit,
            stream, debug_synchronous
        );
    }

    template<typename KeyT, typename OffsetIteratorT>
    HIPCUB_RUNTIME_FUNCTION static
    cudaError_t SortKeysDescending(void * d_temp_storage,
                                  size_t& temp_storage_bytes,
                                  DoubleBuffer<KeyT>& d_keys,
                                  int num_items,
                                  int num_segments,
                                  OffsetIteratorT d_begin_offsets,
                                  OffsetIteratorT d_end_offsets,
                                  int begin_bit = 0,
                                  int end_bit = sizeof(KeyT) * 8,
                                  cudaStream_t stream = 0,
                                  bool debug_synchronous = false)
    {
        ::rocprim::double_buffer<KeyT> d_keys_db = detail::to_double_buffer(d_keys);
        cudaError_t error = (cudaError_t)::rocprim::segmented_radix_sort_keys_desc(
            d_temp_storage, temp_storage_bytes,
            d_keys_db, num_items,
            num_segments, d_begin_offsets, d_end_offsets,
            begin_bit, end_bit,
            stream, debug_synchronous
        );
        detail::update_double_buffer(d_keys, d_keys_db);
        return error;
    }
};

END_HIPCUB_NAMESPACE

#endif // HIPCUB_ROCPRIM_DEVICE_DEVICE_SEGMENTED_RADIX_SORT_HPP_
