gallium: add support for stream in so info

Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Reviewed-by: Brian Paul <brianp@vmware.com>
Reviewed-by: Roland Scheidegger <sroland@vmware.com>

src/gallium/drivers/trace/tr_dump_state.c

@@ -292,6 +292,7 @@ void trace_dump_shader_state(const struct pipe_shader_state *state)
       trace_dump_member(uint, &state->stream_output.output[i], num_components);
       trace_dump_member(uint, &state->stream_output.output[i], output_buffer);
       trace_dump_member(uint, &state->stream_output.output[i], dst_offset);
+      trace_dump_member(uint, &state->stream_output.output[i], stream);
       trace_dump_struct_end();
       trace_dump_elem_end();
    }

src/gallium/include/pipe/p_state.h

@@ -205,6 +205,7 @@ struct pipe_stream_output_info
       unsigned num_components:3;  /** 1 to 4 */
       unsigned output_buffer:3;   /**< 0 to PIPE_MAX_SO_BUFFERS */
       unsigned dst_offset:16;     /**< offset into the buffer in dwords */
+      unsigned stream:2;          /**< 0 to 3 */
    } output[PIPE_MAX_SO_OUTPUTS];
 };
 

src/mesa/state_tracker/st_glsl_to_tgsi.cpp

@@ -5524,6 +5524,7 @@ st_translate_stream_output_info(glsl_to_tgsi_visitor *glsl_to_tgsi,
       so->output[i].num_components = info->Outputs[i].NumComponents;
       so->output[i].output_buffer = info->Outputs[i].OutputBuffer;
       so->output[i].dst_offset = info->Outputs[i].DstOffset;
+      so->output[i].stream = 0; /* info->Outputs[i].StreamId */
    }
 
    for (i = 0; i < PIPE_MAX_SO_BUFFERS; i++) {