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softpipe: Fix textureLod with nonzero GL_TEXTURE_LOD_BIAS value

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The level-of-detail bias wasn't simply added in the explicit LOD case.
This case seems to be tested only in piglit's
fs-texturequerylod-nearest-biased test, which is currently skipped, as
softpipe does not support textureQueryLod at the moment.

Reviewed-by: Brian Paul <brianp@vmware.com>
This commit is contained in:
Krzesimir Nowak 2015-09-10 14:15:52 +02:00 • committed by Brian Paul
parent 85500fe2e1
commit bdc69552ca
1 changed files with 1 additions and 1 deletions
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2
src/gallium/drivers/softpipe/sp_tex_sample.c
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@ -1892,7 +1892,7 @@ compute_lambda_lod(struct sp_sampler_view *sp_sview,
break; break;
case tgsi_sampler_lod_explicit: case tgsi_sampler_lod_explicit:
for (i = 0; i < TGSI_QUAD_SIZE; i++) { for (i = 0; i < TGSI_QUAD_SIZE; i++) {
lod[i] = CLAMP(lod_in[i], min_lod, max_lod); lod[i] = CLAMP(lod_in[i] + lod_bias, min_lod, max_lod);
} }
break; break;
case tgsi_sampler_lod_zero: case tgsi_sampler_lod_zero: