The second vertex was getting a garbage index.
---
src/mesa/drivers/dri/i965/brw_vec4_emit.cpp | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/src/mesa/drivers/dri/i965/brw_vec4_emit.cpp
b/src/mesa/drivers/dri/i965/brw_vec4_emit.cpp
index 828a9c1..61a1092 100644
--- a/src/mesa/drivers/dri/i965/brw_vec4_emit.cpp
+++ b/src/mesa/drivers/dri/i965/brw_vec4_emit.cpp
@@ -377,7 +377,7 @@ vec4_visitor::generate_oword_dual_block_offsets(struct
brw_reg m1,
brw_set_predicate_inverse(p, true);
if (index.file == BRW_IMMEDIATE_VALUE) {
- index_4.dw1.ud++;
+ index_4.dw1.ud += second_vertex_offset;
brw_MOV(p, m1_4, index_4);
} else {
brw_ADD(p, m1_4, index_4, brw_imm_d(second_vertex_offset));
--
1.7.5.4
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