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svga: add 0.5 in float->int conversion of sample min/max lod

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This makes lod clamping more consistent with other drivers.

NOTE: This is a candidate for the 8.0 branch.

Reviewed-by: José Fonseca <jfonseca@vmware.com>
This commit is contained in:
Brian Paul
2012-01-18 10:05:25 -07:00
parent 84c7c14697
commit 5abcd198b8
1 changed files with 2 additions and 2 deletions
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4
src/gallium/drivers/svga/svga_pipe_sampler.c
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@@ -125,8 +125,8 @@ svga_create_sampler_state(struct pipe_context *pipe,
* - min/max LOD clamping
*/
cso->min_lod = 0;
cso->view_min_lod = MAX2(sampler->min_lod, 0);
cso->view_max_lod = MAX2(sampler->max_lod, 0);
cso->view_min_lod = MAX2((int) (sampler->min_lod + 0.5), 0);
cso->view_max_lod = MAX2((int) (sampler->max_lod + 0.5), 0);
/* Use min_mipmap */
if (svga->debug.use_min_mipmap) {