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zink: emit interpolation decorations for ntv outputs

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this matches up with nir internal states pre/post ntv

Reviewed-by: Erik Faye-Lund <erik.faye-lund@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/5384>
This commit is contained in:
Mike Blumenkrantz 2020-06-08 09:55:19 -04:00 • committed by Marge Bot
parent ad8e61621b
commit 98d07bd5a0
1 changed files with 17 additions and 0 deletions
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17
src/gallium/drivers/zink/nir_to_spirv/nir_to_spirv.c
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@ -349,6 +349,23 @@ emit_output(struct ntv_context *ctx, struct nir_variable *var)
spirv_builder_emit_component(&ctx->builder, var_id,
var->data.location_frac);
switch (var->data.interpolation) {
case INTERP_MODE_NONE:
case INTERP_MODE_SMOOTH: /* XXX spirv doesn't seem to have anything for this */
break;
case INTERP_MODE_FLAT:
spirv_builder_emit_decoration(&ctx->builder, var_id, SpvDecorationFlat);
break;
case INTERP_MODE_EXPLICIT:
spirv_builder_emit_decoration(&ctx->builder, var_id, SpvDecorationExplicitInterpAMD);
break;
case INTERP_MODE_NOPERSPECTIVE:
spirv_builder_emit_decoration(&ctx->builder, var_id, SpvDecorationNoPerspective);
break;
default:
unreachable("unknown interpolation value");
}
_mesa_hash_table_insert(ctx->vars, var, (void *)(intptr_t)var_id);
assert(ctx->num_entry_ifaces < ARRAY_SIZE(ctx->entry_ifaces));