!                Parallel Sparse BLAS   GPU plugin 
!      (C) Copyright 2013
!  
!                         Salvatore Filippone
!                         Alessandro Fanfarillo
!   
!    Redistribution and use in source and binary forms, with or without
!    modification, are permitted provided that the following conditions
!    are met:
!      1. Redistributions of source code must retain the above copyright
!         notice, this list of conditions and the following disclaimer.
!      2. 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.
!      3. The name of the PSBLAS group or the names of its contributors may
!         not be used to endorse or promote products derived from this
!         software without specific 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 THE PSBLAS GROUP OR ITS CONTRIBUTORS
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!    POSSIBILITY OF SUCH DAMAGE.
!   
  

subroutine psb_d_cp_rsb_to_coo(a,b,info) 
  
  use psb_base_mod
  use rsb
  use psb_d_rsb_mat_mod, psb_protect_name => psb_d_cp_rsb_to_coo
  implicit none 

  class(psb_d_rsb_sparse_mat), intent(in)    :: a
  class(psb_d_coo_sparse_mat), intent(inout) :: b
  integer(psb_ipk_), intent(out)             :: info
  real(psb_dpk_), pointer :: val_point(:)
  type(c_ptr) :: t_p,s_p

  !locals
  integer(psb_ipk_)   :: i, j, k,nr,nza,nc

  info = psb_success_

  nr  = a%get_nrows()
  nc  = a%get_ncols()
  nza = a%get_nzeros()

  call b%allocate(nr,nc,nza)
  b%psb_d_base_sparse_mat = a%psb_d_base_sparse_mat

  allocate(val_point(nza))

  t_p = c_loc(val_point(1))

  info = rsb_mtx_get_coo(a%rsbMat, t_p, b%ia, b%ja,RSB_FLAG_FORTRAN_INDICES_INTERFACE)

  !info = rsb_mtx_switch_to_coo(a%rsbMat,t_p,b%ia,b%ja,RSB_FLAG_FORTRAN_INDICES_INTERFACE)

  k = rsb_perror(s_p,info)

  do i=1,nza
     b%val(i)=val_point(i)
  enddo

  deallocate(val_point)

  call b%set_nzeros(nza)
  call b%fix(info)

end subroutine psb_d_cp_rsb_to_coo