Quads need to respect winding order, too - not just triangles.
Fixes rendering in GFXBench 4.0's tessellation benchmark.
Signed-off-by: Kenneth Graunke <kenn...@whitecape.org>
Cc: Ilia Mirkin <imir...@alum.mit.edu>
---
src/gallium/drivers/nouveau/nvc0/nvc0_program.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
No regressions in Piglit -t tessellation on NVE0 (GTX 760).
diff --git a/src/gallium/drivers/nouveau/nvc0/nvc0_program.c
b/src/gallium/drivers/nouveau/nvc0/nvc0_program.c
index 67a25ac..5d9a0c1 100644
--- a/src/gallium/drivers/nouveau/nvc0/nvc0_program.c
+++ b/src/gallium/drivers/nouveau/nvc0/nvc0_program.c
@@ -285,8 +285,6 @@ nvc0_tp_get_tess_mode(struct nvc0_program *tp, struct
nv50_ir_prog_info *info)
break;
case PIPE_PRIM_TRIANGLES:
tp->tp.tess_mode = NVC0_3D_TESS_MODE_PRIM_TRIANGLES;
- if (info->prop.tp.winding > 0)
- tp->tp.tess_mode |= NVC0_3D_TESS_MODE_CW;
break;
case PIPE_PRIM_QUADS:
tp->tp.tess_mode = NVC0_3D_TESS_MODE_PRIM_QUADS;
@@ -295,6 +293,10 @@ nvc0_tp_get_tess_mode(struct nvc0_program *tp, struct
nv50_ir_prog_info *info)
tp->tp.tess_mode = ~0;
return;
}
+
+ if (info->prop.tp.winding > 0)
+ tp->tp.tess_mode |= NVC0_3D_TESS_MODE_CW;
+
if (info->prop.tp.outputPrim != PIPE_PRIM_POINTS)
tp->tp.tess_mode |= NVC0_3D_TESS_MODE_CONNECTED;
--
2.6.4
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