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authorErik Faye-Lund <erik.faye-lund@collabora.com>2020-09-28 16:11:38 +0200
committerMarge Bot <eric+marge@anholt.net>2020-09-29 09:04:10 +0000
commit7685c37bf47104497d70c4580abb9e050ea8100f (patch)
tree1632702cb203d7749f0ff790f6b630fdfa5ac1a9
parent8f24a14175b7175b73c3c5f91c7700163c75f484 (diff)
st/mesa: use roundf instead of floorf for lod-bias rounding
There's no good reason not to use a symmetric rounding mode here. This fixes the following GL CTS case for me: GTF-GL33.gtf21.GL3Tests.texture_lod_bias.texture_lod_bias_all Fixes: 132b69c4edb ("st/mesa: round lod_bias to a multiple of 1/256") Reviewed-by: Marek Olšák <marek.olsak@amd.com> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6892>
-rw-r--r--src/mesa/state_tracker/st_atom_sampler.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/mesa/state_tracker/st_atom_sampler.c b/src/mesa/state_tracker/st_atom_sampler.c
index 0c188c104c1..0d99eae6e61 100644
--- a/src/mesa/state_tracker/st_atom_sampler.c
+++ b/src/mesa/state_tracker/st_atom_sampler.c
@@ -132,7 +132,7 @@ st_convert_sampler(const struct st_context *st,
* levels.
*/
sampler->lod_bias = CLAMP(sampler->lod_bias, -16, 16);
- sampler->lod_bias = floorf(sampler->lod_bias * 256) / 256;
+ sampler->lod_bias = roundf(sampler->lod_bias * 256) / 256;
sampler->min_lod = MAX2(msamp->MinLod, 0.0f);
sampler->max_lod = msamp->MaxLod;