summaryrefslogtreecommitdiffstats
path: root/src/compiler/nir
diff options
context:
space:
mode:
Diffstat (limited to 'src/compiler/nir')
-rw-r--r--src/compiler/nir/nir_lower_tex.c13
1 files changed, 13 insertions, 0 deletions
diff --git a/src/compiler/nir/nir_lower_tex.c b/src/compiler/nir/nir_lower_tex.c
index 65681decb1c..c6f001b62ca 100644
--- a/src/compiler/nir/nir_lower_tex.c
+++ b/src/compiler/nir/nir_lower_tex.c
@@ -813,6 +813,19 @@ nir_lower_tex_block(nir_block *block, nir_builder *b,
progress = true;
continue;
}
+
+ /* TXF, TXS and TXL require a LOD but not everything we implement using those
+ * three opcodes provides one. Provide a default LOD of 0.
+ */
+ if ((nir_tex_instr_src_index(tex, nir_tex_src_lod) == -1) &&
+ (tex->op == nir_texop_txf || tex->op == nir_texop_txs ||
+ tex->op == nir_texop_txl || tex->op == nir_texop_query_levels ||
+ (tex->op == nir_texop_tex && b->shader->stage != MESA_SHADER_FRAGMENT))) {
+ b->cursor = nir_before_instr(&tex->instr);
+ nir_tex_instr_add_src(tex, nir_tex_src_lod, nir_src_for_ssa(nir_imm_int(b, 0)));
+ progress = true;
+ continue;
+ }
}
return progress;