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nir/lower_tex: ignore saturate for txf ops

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saturate is used for GL_CLAMP emulation, and GL_CLAMP cannot be used
with txf

ref #9226

cc: mesa-stable

Reviewed-by: Jesse Natalie <jenatali@microsoft.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/23750>
This commit is contained in:
Mike Blumenkrantz 2023-06-20 13:48:05 -04:00 • committed by Marge Bot
parent 886b7aaa6b
commit 402ae3b132
1 changed files with 9 additions and 7 deletions
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16
src/compiler/nir/nir_lower_tex.c
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@ -1385,13 +1385,15 @@ nir_lower_tex_block(nir_block *block, nir_builder *b,
/* mask of src coords to saturate (clamp): */
unsigned sat_mask = 0;
if ((1 << tex->sampler_index) & options->saturate_r)
sat_mask |= (1 << 2); /* .z */
if ((1 << tex->sampler_index) & options->saturate_t)
sat_mask |= (1 << 1); /* .y */
if ((1 << tex->sampler_index) & options->saturate_s)
sat_mask |= (1 << 0); /* .x */
/* ignore saturate for txf ops: these don't use samplers and can't GL_CLAMP */
if (nir_tex_instr_need_sampler(tex)) {
if ((1 << tex->sampler_index) & options->saturate_r)
sat_mask |= (1 << 2); /* .z */
if ((1 << tex->sampler_index) & options->saturate_t)
sat_mask |= (1 << 1); /* .y */
if ((1 << tex->sampler_index) & options->saturate_s)
sat_mask |= (1 << 0); /* .x */
}
if (options->lower_index_to_offset)
progress |= lower_index_to_offset(b, tex);