filters.f90

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module filters
  use field, only: field_t
  use num_types, only: rp
  implicit none
 
  private
  public :: smooth_step_field, permeability_field, step_function_field
 
contains
 
  subroutine smooth_step_field(F, edge0, edge1)
    use filters_cpu, only: smooth_step_cpu
 
    type(field_t), intent(inout) :: f
    real(kind=rp), intent(in) :: edge0, edge1
 
    f%x = smooth_step_cpu(f%x, edge0, edge1)
  end subroutine smooth_step_field
 
  subroutine permeability_field(F_out, x, k_0, k_1, q)
    use filters_cpu, only: permeability_cpu
 
    type(field_t), intent(inout) :: f_out
    type(field_t), intent(in) :: x
    real(kind=rp), intent(in) :: k_0, k_1
    real(kind=rp), intent(in) :: q
 
    f_out%x = permeability_cpu(x%x, k_0, k_1, q)
  end subroutine permeability_field
 
  subroutine step_function_field(F, x0, value0, value1)
    use filters_cpu, only: step_function_cpu
 
    type(field_t), intent(inout) :: f
    real(kind=rp), intent(in) :: x0, value0, value1
 
    f%x = step_function_cpu(f%x, x0, value0, value1)
  end subroutine step_function_field
 
end module filters