[Mesa-dev] [PATCH] i965: Enable EWA anisotropic filtering algorithm for isotropic case

[Pavel Popov]

See the reasons in Bug 82463:
https://bugs.freedesktop.org/show_bug.cgi?id=82463

Signed-off-by: Pavel Popov <pavel.e.popov at intel.com>
---
 src/mesa/drivers/dri/i965/brw_sampler_state.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/mesa/drivers/dri/i965/brw_sampler_state.c b/src/mesa/drivers/dri/i965/brw_sampler_state.c
index d03047b..2b3f676 100644
--- a/src/mesa/drivers/dri/i965/brw_sampler_state.c
+++ b/src/mesa/drivers/dri/i965/brw_sampler_state.c
@@ -114,8 +114,8 @@ brw_emit_sampler_state(struct brw_context *brw,
    if (brw->gen >= 7) {
       ss[0] |= SET_FIELD(lod_bias & 0x1fff, GEN7_SAMPLER_LOD_BIAS);
 
-      if (min_filter == BRW_MAPFILTER_ANISOTROPIC)
-         ss[0] |= GEN7_SAMPLER_EWA_ANISOTROPIC_ALGORIHTM;
+      /* Use EWA algorithm for anisotropic and isotropic cases */
+      ss[0] |= GEN7_SAMPLER_EWA_ANISOTROPIC_ALGORIHTM;
 
       ss[1] = SET_FIELD(min_lod, GEN7_SAMPLER_MIN_LOD) |
               SET_FIELD(max_lod, GEN7_SAMPLER_MAX_LOD) |
-- 
1.9.1