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zink: fix slot mapping for legacy gl io with tess stages

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e.g., gl_BackColor is a thing

Fixes: aec03553e1 ("zink: fix tess shader i/o variables")

Reviewed-by: Dave Airlie <airlied@redhat.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/9019>
This commit is contained in:
Mike Blumenkrantz
2021-02-12 12:27:47 -05:00
committed by Marge Bot
parent 2b6950c3fd
commit e3428419fb
1 changed files with 3 additions and 3 deletions
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src/gallium/drivers/zink/nir_to_spirv/nir_to_spirv.c
+3 -3
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@@ -413,9 +413,9 @@ handle_handle_slot(struct ntv_context *ctx, struct nir_variable *var, bool outpu
if (var->data.patch) {
assert(var->data.location >= VARYING_SLOT_PATCH0);
return var->data.location - VARYING_SLOT_PATCH0;
} else if ((output && ctx->stage == MESA_SHADER_TESS_CTRL) ||
(!output && ctx->stage == MESA_SHADER_TESS_EVAL)) {
assert(var->data.location >= VARYING_SLOT_VAR0);
} else if (var->data.location >= VARYING_SLOT_VAR0 &&
((output && ctx->stage == MESA_SHADER_TESS_CTRL) ||
(!output && ctx->stage == MESA_SHADER_TESS_EVAL))) {
return var->data.location - VARYING_SLOT_VAR0;
}
return handle_slot(ctx, var->data.location);