text: /* ************************************************************************
   * Copyright (c) 2018 Advanced Micro Devices, Inc.
   *
   * 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.
   *
   * ************************************************************************ */
  
  #pragma once
  #ifndef ROCSPARSE_CSR2ELL_HPP
  #define ROCSPARSE_CSR2ELL_HPP
  
  #include "rocsparse.h"
  #include "definitions.h"
  #include "handle.h"
  #include "utility.h"
  #include "csr2ell_device.h"
  
  #include <hip/hip_runtime.h>
  
  template <typename T>
  rocsparse_status rocsparse_csr2ell_template(rocsparse_handle handle,
                                              rocsparse_int m,
                                              const rocsparse_mat_descr csr_descr,
                                              const T* csr_val,
                                              const rocsparse_int* csr_row_ptr,
                                              const rocsparse_int* csr_col_ind,
                                              const rocsparse_mat_descr ell_descr,
                                              rocsparse_int ell_width,
                                              T* ell_val,
                                              rocsparse_int* ell_col_ind)
  {
      // Check for valid handle and matrix descriptor
      if(handle == nullptr)
      {
          return rocsparse_status_invalid_handle;
      }
      else if(csr_descr == nullptr)
      {
          return rocsparse_status_invalid_pointer;
      }
      else if(ell_descr == nullptr)
      {
          return rocsparse_status_invalid_pointer;
      }
  
      // Logging
      log_trace(handle,
                replaceX<T>("rocsparse_Xcsr2ell"),
                m,
                (const void*&)csr_descr,
                (const void*&)csr_val,
                (const void*&)csr_row_ptr,
                (const void*&)csr_col_ind,
                (const void*&)ell_descr,
                ell_width,
                (const void*&)ell_val,
                (const void*&)ell_col_ind);
  
      log_bench(handle, "./rocsparse-bench -f csr2ell -r", replaceX<T>("X"), "--mtx <matrix.mtx>");
  
      // Check index base
      if(csr_descr->base != rocsparse_index_base_zero && csr_descr->base != rocsparse_index_base_one)
      {
          return rocsparse_status_invalid_value;
      }
      if(ell_descr->base != rocsparse_index_base_zero && ell_descr->base != rocsparse_index_base_one)
      {
          return rocsparse_status_invalid_value;
      }
      // Check matrix type
      if(csr_descr->type != rocsparse_matrix_type_general)
      {
          // TODO
          return rocsparse_status_not_implemented;
      }
      if(ell_descr->type != rocsparse_matrix_type_general)
      {
          // TODO
          return rocsparse_status_not_implemented;
      }
  
      // Check sizes
      if(m < 0 || ell_width < 0)
      {
          return rocsparse_status_invalid_size;
      }
  
      // Check pointer arguments
      if(csr_val == nullptr)
      {
          return rocsparse_status_invalid_pointer;
      }
      else if(csr_row_ptr == nullptr)
      {
          return rocsparse_status_invalid_pointer;
      }
      else if(csr_col_ind == nullptr)
      {
          return rocsparse_status_invalid_pointer;
      }
      else if(ell_val == nullptr)
      {
          return rocsparse_status_invalid_pointer;
      }
      else if(ell_col_ind == nullptr)
      {
          return rocsparse_status_invalid_pointer;
      }
  
      // Quick return if possible
      if(m == 0 || ell_width == 0)
      {
          return rocsparse_status_success;
      }
  
      // Stream
      hipStream_t stream = handle->stream;
  
  #define CSR2ELL_DIM 512
      dim3 csr2ell_blocks((m - 1) / CSR2ELL_DIM + 1);
      dim3 csr2ell_threads(CSR2ELL_DIM);
  
      hipLaunchKernelGGL((csr2ell_kernel<T>),
                         csr2ell_blocks,
                         csr2ell_threads,
                         0,
                         stream,
                         m,
                         csr_val,
                         csr_row_ptr,
                         csr_col_ind,
                         csr_descr->base,
                         ell_width,
                         ell_col_ind,
                         ell_val,
                         ell_descr->base);
  #undef CSR2ELL_DIM
      return rocsparse_status_success;
  }
  
  #endif // ROCSPARSE_CSR2ELL_HPP
  