diff options
| author | Ian Romanick <ian.d.romanick@intel.com> | 2014-03-04 11:08:05 +0200 |
|---|---|---|
| committer | Kenneth Graunke <kenneth@whitecape.org> | 2014-03-18 10:56:38 -0700 |
| commit | f74cf5f80ea6ea16abb38c28c2b4826b8559017b (patch) | |
| tree | a452b153e43e739c65c14286fb12ddda17d41b82 | |
| parent | dd2e5d3999e456c33dbc9a710e211a7bdbe3330f (diff) | |
i965: Enable EWA anisotropic filtering algorithm
Volume 4, part 1 of the Ivybridge PRM says, "Generally, the EWA
approximation algorithm results in higher image quality than the legacy
algorithm." Using a classic anisotropic filtering "tunnel" demo, it
appears that there is *no* anisotropic filtering on IVB without this bit
set.
Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
| -rw-r--r-- | src/mesa/drivers/dri/i965/gen7_sampler_state.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/i965/gen7_sampler_state.c b/src/mesa/drivers/dri/i965/gen7_sampler_state.c index 968c410345e..709a783f141 100644 --- a/src/mesa/drivers/dri/i965/gen7_sampler_state.c +++ b/src/mesa/drivers/dri/i965/gen7_sampler_state.c @@ -82,6 +82,7 @@ gen7_update_sampler_state(struct brw_context *brw, int unit, int ss_index, if (gl_sampler->MaxAnisotropy > 1.0) { sampler->ss0.min_filter = BRW_MAPFILTER_ANISOTROPIC; sampler->ss0.mag_filter = BRW_MAPFILTER_ANISOTROPIC; + sampler->ss0.aniso_algorithm = 1; if (gl_sampler->MaxAnisotropy > 2.0) { sampler->ss3.max_aniso = MIN2((gl_sampler->MaxAnisotropy - 2) / 2, |