On 03/25/2019 06:47 PM, Dave Airlie wrote:
From: Dave Airlie <airl...@redhat.com>

This gets the basevertex from the draw depending on whether
it's an indexed or non-indexed draw.

We still fail a transform feedback test for vertex id, as
the vertex id actually an index id, and isn't getting translated
properly to a vertex id, suggestions on how/where to fix that welcome.
---
  src/gallium/auxiliary/draw/draw_vs_exec.c | 7 +++----
  1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/src/gallium/auxiliary/draw/draw_vs_exec.c 
b/src/gallium/auxiliary/draw/draw_vs_exec.c
index 4f11ac7506c..dbd7aa551eb 100644
--- a/src/gallium/auxiliary/draw/draw_vs_exec.c
+++ b/src/gallium/auxiliary/draw/draw_vs_exec.c
@@ -128,18 +128,17 @@ vs_exec_run_linear(struct draw_vertex_shader *shader,
                           input[slot][3]);
           }
  #endif
+        int basevertex = shader->draw->pt.user.eltSize ? 
shader->draw->pt.user.eltBias : shader->draw->start_index;
if (shader->info.uses_vertexid) {
              unsigned vid = 
machine->SysSemanticToIndex[TGSI_SEMANTIC_VERTEXID];
              assert(vid < ARRAY_SIZE(machine->SystemValue));
-            machine->SystemValue[vid].xyzw[0].i[j] = i + j;
-            /* XXX this should include base vertex. Where to get it??? */
+            machine->SystemValue[vid].xyzw[0].i[j] = i + j + basevertex;
           }
           if (shader->info.uses_basevertex) {
              unsigned vid = 
machine->SysSemanticToIndex[TGSI_SEMANTIC_BASEVERTEX];
              assert(vid < ARRAY_SIZE(machine->SystemValue));
-            machine->SystemValue[vid].xyzw[0].i[j] = 0;
-            /* XXX Where to get it??? */
+            machine->SystemValue[vid].xyzw[0].i[j] = basevertex;
           }
           if (shader->info.uses_vertexid_nobase) {
              unsigned vid = 
machine->SysSemanticToIndex[TGSI_SEMANTIC_VERTEXID_NOBASE];


Reviewed-by: Brian Paul <bri...@vmware.com>
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