From: Eric Anholt <eric@anholt.net>
Date: Tue, 30 Aug 2011 23:40:06 +0000 (-0700)
Subject: i965/vs: Fix constant-indexed array read/write addresses on pre-gen6.
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=88612e2c1b1580b92d229ec6d2236fe07b32e060;p=mesa.git

i965/vs: Fix constant-indexed array read/write addresses on pre-gen6.

The second vertex was getting a garbage index.

Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
---

diff --git a/src/mesa/drivers/dri/i965/brw_vec4_emit.cpp b/src/mesa/drivers/dri/i965/brw_vec4_emit.cpp
index 828a9c1f9cb..61a1092bbff 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));