This DP4 had one of its operands missing, so we were generating
garbage clip distances. Using the per-opcode instruction generators
made it obvious.
---
src/mesa/drivers/dri/i965/brw_vec4_visitor.cpp | 6 +++---
1 files changed, 3 insertions(+), 3 deletions(-)
diff --git a/src/mesa/drivers/dri/i965/brw_vec4_visitor.cpp
b/src/mesa/drivers/dri/i965/brw_vec4_visitor.cpp
index 68c0ed9..7334a38 100644
--- a/src/mesa/drivers/dri/i965/brw_vec4_visitor.cpp
+++ b/src/mesa/drivers/dri/i965/brw_vec4_visitor.cpp
@@ -1854,9 +1854,9 @@ vec4_visitor::emit_vue_header_gen6(int header_mrf)
else
m = brw_message_reg(header_mrf + 1);
- emit(BRW_OPCODE_DP4,
- dst_reg(brw_writemask(m, 1 << (i & 3))),
- src_reg(c->userplane[i]));
+ emit(DP4(dst_reg(brw_writemask(m, 1 << (i & 3))),
+ src_reg(output_reg[VERT_RESULT_HPOS]),
+ src_reg(c->userplane[i])));
}
header_mrf += 2;
}
--
1.7.5.4
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