draw: emit multiple streams to streamout.

Reviewed-by: Roland Scheidegger <sroland@vmware.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/merge_requests/3530>

diff --git a/src/gallium/auxiliary/draw/draw_pt_fetch_shade_pipeline_llvm.c b/src/gallium/auxiliary/draw/draw_pt_fetch_shade_pipeline_llvm.c
index c19eda2..3a75a00 100644 (file)
--- a/src/gallium/auxiliary/draw/draw_pt_fetch_shade_pipeline_llvm.c
+++ b/src/gallium/auxiliary/draw/draw_pt_fetch_shade_pipeline_llvm.c
@@ -483,7 +483,7 @@ llvm_pipeline_generic(struct draw_pt_middle_end *middle,
    }
 
    /* stream output needs to be done before clipping */
-   draw_pt_so_emit( fpme->so_emit, 1, vert_info, prim_info );
+   draw_pt_so_emit( fpme->so_emit, gshader ? gshader->num_vertex_streams : 1, vert_info, prim_info );
 
    draw_stats_clipper_primitives(draw, prim_info);