This showed up in bug #19911: When all VBs were disabled (because we were
getting a DrawArrays with no arrays enabled, which was a bug), the VP
got flagged as having no InputsRead. We would proceed to emit a VB state
packet with -1 length, and the parser got angry with us. This doesn't fix
the problem, as presumably the program is still trying to read this data.
---
src/mesa/drivers/dri/i965/brw_draw_upload.c | 3 +++
1 files changed, 3 insertions(+), 0 deletions(-)
diff --git a/src/mesa/drivers/dri/i965/brw_draw_upload.c
b/src/mesa/drivers/dri/i965/brw_draw_upload.c
index 02998d5..cce3eba 100644
--- a/src/mesa/drivers/dri/i965/brw_draw_upload.c
+++ b/src/mesa/drivers/dri/i965/brw_draw_upload.c
@@ -469,6 +469,9 @@ static void brw_emit_vertices(struct brw_context *brw)
brw_emit_query_begin(brw);
+ if (nr_enabled == 0)
+ return;
+
/* Now emit VB and VEP state packets.
*
* This still defines a hardware VB for each input, even if they
--
1.5.6.5
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