diff options
| -rw-r--r-- | src/mesa/drivers/dri/i965/brw_vs_state.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_vs_state.c b/src/mesa/drivers/dri/i965/brw_vs_state.c index be92313861..c3a7cc247c 100644 --- a/src/mesa/drivers/dri/i965/brw_vs_state.c +++ b/src/mesa/drivers/dri/i965/brw_vs_state.c @@ -96,7 +96,14 @@ vs_unit_create_from_key(struct brw_context *brw, struct brw_vs_unit_key *key) * and those dwords will be written to the second URB handle when we * brw_urb_WRITE() results. */ - vs.thread1.single_program_flow = 0; + /* Disable single program flow on Ironlake. We cannot reliably get + * all applications working without it. See: + * https://bugs.freedesktop.org/show_bug.cgi?id=29172 + * + * The most notable and reliably failing application is the Humus + * demo "CelShading" + */ + vs.thread1.single_program_flow = (intel->gen == 5); if (intel->gen == 5) vs.thread1.binding_table_entry_count = 0; /* hardware requirement */ |