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nv50: fix depth comparison func TSC bits

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Unfortunately it seems that if depth comparison is
active and we read a 2D texture, i.e. provide only
2 inputs, the second is used for comparison ...
This commit is contained in:
Christoph Bumiller 2009-12-10 20:54:18 +01:00
parent 6a689783b9
commit cc0ffaba7d
1 changed files with 3 additions and 2 deletions
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5
src/gallium/drivers/nv50/nv50_state.c
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@ -196,8 +196,9 @@ nv50_sampler_state_create(struct pipe_context *pipe,
}
if (cso->compare_mode == PIPE_TEX_COMPARE_R_TO_TEXTURE) {
tsc[0] |= (1 << 8);
tsc[0] |= (nvgl_comparison_op(cso->compare_func) & 0x7);
/* XXX: must be deactivated for non-shadow textures */
tsc[0] |= (1 << 9);
tsc[0] |= (nvgl_comparison_op(cso->compare_func) & 0x7) << 10;
}
limit = CLAMP(cso->lod_bias, -16.0, 15.0);