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i965/gen7: Fix feedback for flat-shaded tristrips versus provoking vertex.

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Fixes piglit tesselation triangle_strip flat_last.

Reviewed-by: Kenneth Graunke <kenneth@whitecape.org> (v1)
Reviewed-by: Paul Berry <stereotype441@gmail.com>
This commit is contained in:
Eric Anholt 2011-12-22 16:23:46 -08:00
parent c8223d8c8d
commit e71375d375
1 changed files with 5 additions and 0 deletions
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5
src/mesa/drivers/dri/i965/gen7_sol_state.c
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@ -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 |