2 * Copyright © 2015 Red Hat
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11 * The above copyright notice and this permission notice (including the next
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15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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25 #include "nir_builder.h"
28 lower_impl(nir_function_impl
*impl
)
30 nir_shader
*shader
= impl
->function
->shader
;
32 nir_variable
*in
, *out
;
35 nir_builder_init(&b
, impl
);
36 b
.cursor
= nir_before_cf_list(&impl
->body
);
38 in
= nir_variable_create(shader
, nir_var_shader_in
,
39 glsl_vec4_type(), "edgeflag_in");
40 in
->data
.location
= VERT_ATTRIB_EDGEFLAG
;
42 out
= nir_variable_create(shader
, nir_var_shader_out
,
43 glsl_vec4_type(), "edgeflag_out");
44 out
->data
.location
= VARYING_SLOT_EDGE
;
46 def
= nir_load_var(&b
, in
);
47 nir_store_var(&b
, out
, def
, 0xf);
49 nir_metadata_preserve(impl
, nir_metadata_block_index
|
50 nir_metadata_dominance
);
53 void nir_lower_passthrough_edgeflags(nir_shader
*shader
)
55 lower_impl(nir_shader_get_entrypoint(shader
));