gallium: in softpipe_get_vertex_info() generate a vbuf vertex_info with real attribs

Can't use the EMIT_ALL shortcut/optimization anymore because of passthrough mode.

1 files changed, 12 insertions, 0 deletions

diff --git a/src/gallium/drivers/softpipe/sp_state_derived.c b/src/gallium/drivers/softpipe/sp_state_derived.c
index eafbaed4b9..10483675ea 100644
--- a/src/gallium/drivers/softpipe/sp_state_derived.c
+++ b/src/gallium/drivers/softpipe/sp_state_derived.c
@@ -72,10 +72,22 @@ softpipe_get_vertex_info(struct softpipe_context *softpipe)
           */
          struct vertex_info *vinfo_vbuf = &softpipe->vertex_info_vbuf;
          vinfo_vbuf->num_attribs = 0;
+#if 0
+         /* special-case to allow memcpy of whole vertex */
          draw_emit_vertex_attr(vinfo_vbuf, EMIT_ALL, INTERP_NONE, 0);
          /* size in dwords or floats */
          vinfo_vbuf->size = 4 * draw_num_vs_outputs(softpipe->draw)
                           + sizeof(struct vertex_header) / 4;
+#else
+         /* for pass-through mode, we need a more explicit list of attribs */
+         const uint num = draw_num_vs_outputs(softpipe->draw);
+         uint i;
+         draw_emit_vertex_attr(vinfo_vbuf, EMIT_HEADER, INTERP_NONE, 0);
+         for (i = 0; i < num; i++) {
+            draw_emit_vertex_attr(vinfo_vbuf, EMIT_4F, INTERP_PERSPECTIVE, i);
+         }
+         draw_compute_vertex_size(vinfo_vbuf);
+#endif
       }
 
       /*