diff options
| author | Matt Turner <[email protected]> | 2014-12-08 22:59:17 -0800 |
|---|---|---|
| committer | Emil Velikov <[email protected]> | 2014-12-11 13:54:53 +0000 |
| commit | db784a09f15a3d9d431348188e6130a39d9ed3f0 (patch) | |
| tree | 52aac2aaf6dcf3a7bfa231f7ca08d0c30b7fac2c | |
| parent | d9f4aaa0956b9c1b8a10c977bee9e4089167fdb4 (diff) | |
i965: Disable unlit-centroid workaround on Gen < 6.
Back to the original commit (8313f444) adding the workaround, we were
enabling it on gens <= 7, even though gens <= 5 can't do multisampling.
I cannot find documentation that says that Sandybridge needs this
workaround but in practice disabling it causes these piglit tests to
fail:
EXT_framebuffer_multisample/interpolation {2,4} centroid-deriv{,-disabled}
On Ironlake:
total instructions in shared programs: 4358478 -> 4349671 (-0.20%)
instructions in affected programs: 117680 -> 108873 (-7.48%)
A bunch of shaders in TF2, Portal 2, and L4D2 are cut by 25~30%.
Cc: "10.4" <[email protected]>
Reviewed-by: Chris Forbes <[email protected]>
(cherry picked from commit 1a2de7dce8fcff807a2b42b7197d11b28192fa3e)
| -rw-r--r-- | src/mesa/drivers/dri/i965/brw_device_info.c | 3 |
1 files changed, 0 insertions, 3 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_device_info.c b/src/mesa/drivers/dri/i965/brw_device_info.c index 35ca125b271..ae80a937151 100644 --- a/src/mesa/drivers/dri/i965/brw_device_info.c +++ b/src/mesa/drivers/dri/i965/brw_device_info.c @@ -28,7 +28,6 @@ static const struct brw_device_info brw_device_info_i965 = { .gen = 4, .has_negative_rhw_bug = true, - .needs_unlit_centroid_workaround = true, .max_vs_threads = 16, .max_gs_threads = 2, .max_wm_threads = 8 * 4, @@ -42,7 +41,6 @@ static const struct brw_device_info brw_device_info_g4x = { .has_pln = true, .has_compr4 = true, .has_surface_tile_offset = true, - .needs_unlit_centroid_workaround = true, .is_g4x = true, .max_vs_threads = 32, .max_gs_threads = 2, @@ -57,7 +55,6 @@ static const struct brw_device_info brw_device_info_ilk = { .has_pln = true, .has_compr4 = true, .has_surface_tile_offset = true, - .needs_unlit_centroid_workaround = true, .max_vs_threads = 72, .max_gs_threads = 32, .max_wm_threads = 12 * 6, |