/*! \file */
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 *
 * The above copyright notice and this permission notice shall be included in
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 *
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#pragma once
#ifndef ROCSPARSE_CSX2DENSE_HPP
#define ROCSPARSE_CSX2DENSE_HPP

#include "csx2dense_device.h"

template <rocsparse_direction DIRA, typename I, typename J, typename T>
rocsparse_status rocsparse_csx2dense_template(rocsparse_handle          handle,
                                              J                         m,
                                              J                         n,
                                              const rocsparse_mat_descr descr,
                                              const T*                  csx_val,
                                              const I*                  csx_row_col_ptr,
                                              const J*                  csx_col_row_ind,
                                              T*                        A,
                                              I                         ld,
                                              rocsparse_order           order)
{
    if(0 == m || 0 == n)
    {
        return rocsparse_status_success;
    }

    hipStream_t stream = handle->stream;

    switch(DIRA)
    {
    case rocsparse_direction_row:
    {
        if(handle->wavefront_size == 32)
        {
            static constexpr rocsparse_int WAVEFRONT_SIZE  = 32;
            static constexpr rocsparse_int NROWS_PER_BLOCK = 16;

            rocsparse_int blocks = (m - 1) / NROWS_PER_BLOCK + 1;
            dim3          k_blocks(blocks), k_threads(WAVEFRONT_SIZE * NROWS_PER_BLOCK);

            hipLaunchKernelGGL((csr2dense_kernel<NROWS_PER_BLOCK, WAVEFRONT_SIZE, I, J, T>),
                               k_blocks,
                               k_threads,
                               0,
                               stream,
                               descr->base,
                               m,
                               n,
                               csx_val,
                               csx_row_col_ptr,
                               csx_col_row_ind,
                               A,
                               ld,
                               order);
        }
        else
        {
            static constexpr rocsparse_int WAVEFRONT_SIZE  = 64;
            static constexpr rocsparse_int NROWS_PER_BLOCK = 16;

            rocsparse_int blocks = (m - 1) / NROWS_PER_BLOCK + 1;
            dim3          k_blocks(blocks), k_threads(WAVEFRONT_SIZE * NROWS_PER_BLOCK);

            hipLaunchKernelGGL((csr2dense_kernel<NROWS_PER_BLOCK, WAVEFRONT_SIZE, I, J, T>),
                               k_blocks,
                               k_threads,
                               0,
                               stream,
                               descr->base,
                               m,
                               n,
                               csx_val,
                               csx_row_col_ptr,
                               csx_col_row_ind,
                               A,
                               ld,
                               order);
        }

        return rocsparse_status_success;
    }

    case rocsparse_direction_column:
    {
        if(handle->wavefront_size == 32)
        {
            static constexpr rocsparse_int WAVEFRONT_SIZE     = 32;
            static constexpr rocsparse_int NCOLUMNS_PER_BLOCK = 16;

            rocsparse_int blocks = (n - 1) / NCOLUMNS_PER_BLOCK + 1;
            dim3          k_blocks(blocks), k_threads(WAVEFRONT_SIZE * NCOLUMNS_PER_BLOCK);

            hipLaunchKernelGGL((csc2dense_kernel<NCOLUMNS_PER_BLOCK, WAVEFRONT_SIZE, I, J, T>),
                               k_blocks,
                               k_threads,
                               0,
                               stream,
                               descr->base,
                               m,
                               n,
                               csx_val,
                               csx_row_col_ptr,
                               csx_col_row_ind,
                               A,
                               ld,
                               order);
        }
        else
        {
            static constexpr rocsparse_int WAVEFRONT_SIZE     = 64;
            static constexpr rocsparse_int NCOLUMNS_PER_BLOCK = 16;

            rocsparse_int blocks = (n - 1) / NCOLUMNS_PER_BLOCK + 1;
            dim3          k_blocks(blocks), k_threads(WAVEFRONT_SIZE * NCOLUMNS_PER_BLOCK);

            hipLaunchKernelGGL((csc2dense_kernel<NCOLUMNS_PER_BLOCK, WAVEFRONT_SIZE, I, J, T>),
                               k_blocks,
                               k_threads,
                               0,
                               stream,
                               descr->base,
                               m,
                               n,
                               csx_val,
                               csx_row_col_ptr,
                               csx_col_row_ind,
                               A,
                               ld,
                               order);
        }

        return rocsparse_status_success;
    }
    }

    return rocsparse_status_invalid_value;
}

#endif // ROCSPARSE_CSX2DENSE_HPP