Exemple #1
0
  void out_of_place(BE *backend,
		    const_Tensor<InT, Block0> in,
		    Tensor<OutT, Block1> out)
  {
    {
      dda::Data<Block0, dda::in> in_data(in.block());
      dda::Data<Block1, dda::out> out_data(out.block());

      backend->out_of_place(in_data.ptr(), 
			    in_data.stride(0), in_data.stride(1), in_data.stride(2),
			    out_data.ptr(),
			    out_data.stride(0), out_data.stride(1), out_data.stride(2),
			    select_fft_size<InT, OutT>(in_data.size(0), out_data.size(0)),
			    select_fft_size<InT, OutT>(in_data.size(1), out_data.size(1)),
			    select_fft_size<InT, OutT>(in_data.size(2), out_data.size(2)));
    }

    // Scale the data if not already done by the backend.
    if (!backend->supports_scale() && !almost_equal(scale_, scalar_type(1.)))
      out *= scale_;
  }
  void by_reference(BE *backend,
		    const_Tensor<InT, Block0> in,
		    Tensor<OutT, Block1> out)
  {
    {
      Ext_data<Block0> in_ext (in.block(),  SYNC_IN);
      Ext_data<Block1> out_ext(out.block(), SYNC_OUT);

      backend->by_reference(
		in_ext.data(), 
		in_ext.stride(0), in_ext.stride(1), in_ext.stride(2),
		out_ext.data(),
		out_ext.stride(0), out_ext.stride(1), out_ext.stride(2),
		select_fft_size<InT, OutT>(in_ext.size(0), out_ext.size(0)),
		select_fft_size<InT, OutT>(in_ext.size(1), out_ext.size(1)),
		select_fft_size<InT, OutT>(in_ext.size(2), out_ext.size(2)));
    }

    // Scale the data if not already done by the backend.
    if (!backend->supports_scale() && !almost_equal(scale_, scalar_type(1.)))
      out *= scale_;
  }