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authorZhenyu Wang <zhenyuw@linux.intel.com>2010-09-17 14:25:43 +0800
committerIan Romanick <ian.d.romanick@intel.com>2010-09-28 18:34:43 -0700
commit32c1dc76af1e3f0c7ac167b75a2ad286325a1319 (patch)
treebe0a66a971f0cd5900d58fa12ce56c0e54360484
parentf9ad343cf796b29710014825cec2ab3da1d9610a (diff)
i965: ignore quads for GS kernel on sandybridge
Sandybridge's VF would convert quads to polygon which not required for GS then. Current GS state still would cause hang on lineloop. (cherry picked from commit a0b1d7b2b8d35f30793d811d7b5a693e9ea17596)
-rw-r--r--src/mesa/drivers/dri/i965/brw_gs.c9
1 files changed, 8 insertions, 1 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_gs.c b/src/mesa/drivers/dri/i965/brw_gs.c
index 5409e557880..8952c9e3463 100644
--- a/src/mesa/drivers/dri/i965/brw_gs.c
+++ b/src/mesa/drivers/dri/i965/brw_gs.c
@@ -60,7 +60,7 @@ static void compile_gs_prog( struct brw_context *brw,
*/
c.nr_attrs = brw_count_bits(c.key.attrs);
- if (intel->gen == 5)
+ if (intel->gen >= 5)
c.nr_regs = (c.nr_attrs + 1) / 2 + 3; /* are vertices packed, or reg-aligned? */
else
c.nr_regs = (c.nr_attrs + 1) / 2 + 1; /* are vertices packed, or reg-aligned? */
@@ -85,12 +85,19 @@ static void compile_gs_prog( struct brw_context *brw,
*/
switch (key->primitive) {
case GL_QUADS:
+ /* Gen6: VF has already converted into polygon. */
+ if (intel->gen == 6)
+ return;
brw_gs_quads( &c, key );
break;
case GL_QUAD_STRIP:
+ if (intel->gen == 6)
+ return;
brw_gs_quad_strip( &c, key );
break;
case GL_LINE_LOOP:
+ /* XXX fix GS hang issue */
+ assert(intel->gen < 6);
brw_gs_lines( &c );
break;
case GL_LINES: