Mesa (master): i965/gen7: Fix feedback for flat-shaded tristrips versus provoking vertex.
Eric Anholt
anholt at kemper.freedesktop.org
Sat Dec 24 06:13:52 UTC 2011
Module: Mesa
Branch: master
Commit: e71375d375e2cc0d0a06fec6e7adbd1dd3a6a2fc
URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=e71375d375e2cc0d0a06fec6e7adbd1dd3a6a2fc
Author: Eric Anholt <eric at anholt.net>
Date: Thu Dec 22 16:23:46 2011 -0800
i965/gen7: Fix feedback for flat-shaded tristrips versus provoking vertex.
Fixes piglit tesselation triangle_strip flat_last.
Reviewed-by: Kenneth Graunke <kenneth at whitecape.org> (v1)
Reviewed-by: Paul Berry <stereotype441 at gmail.com>
---
src/mesa/drivers/dri/i965/gen7_sol_state.c | 5 +++++
1 files changed, 5 insertions(+), 0 deletions(-)
diff --git a/src/mesa/drivers/dri/i965/gen7_sol_state.c b/src/mesa/drivers/dri/i965/gen7_sol_state.c
index 3b6fc8e..7346866 100644
--- a/src/mesa/drivers/dri/i965/gen7_sol_state.c
+++ b/src/mesa/drivers/dri/i965/gen7_sol_state.c
@@ -187,6 +187,10 @@ upload_3dstate_streamout(struct brw_context *brw, bool active,
dw1 |= SO_FUNCTION_ENABLE;
dw1 |= SO_STATISTICS_ENABLE;
+ /* _NEW_LIGHT */
+ if (ctx->Light.ProvokingVertex != GL_FIRST_VERTEX_CONVENTION)
+ dw1 |= SO_REORDER_TRAILING;
+
for (i = 0; i < 4; i++) {
if (xfb_obj->Buffers[i]) {
dw1 |= SO_BUFFER_ENABLE(i);
@@ -240,6 +244,7 @@ upload_sol_state(struct brw_context *brw)
const struct brw_tracked_state gen7_sol_state = {
.dirty = {
.mesa = (_NEW_RASTERIZER_DISCARD |
+ _NEW_LIGHT |
_NEW_TRANSFORM_FEEDBACK |
_NEW_TRANSFORM),
.brw = (BRW_NEW_BATCH |
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