1 /*
2 * Copyright © 2010 Intel Corporation
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
13 * Software.
14 *
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,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
21 * DEALINGS IN THE SOFTWARE.
22 */
23
24 #include "ast.h"
25 extern "C" {
26 #include "program/symbol_table.h"
27 }
28
29 void
print(void) const30 ast_type_specifier::print(void) const
31 {
32 if (structure) {
33 structure->print();
34 } else {
35 printf("%s ", type_name);
36 }
37
38 if (is_array) {
39 printf("[ ");
40
41 if (array_size) {
42 array_size->print();
43 }
44
45 printf("] ");
46 }
47 }
48
49 bool
has_qualifiers() const50 ast_fully_specified_type::has_qualifiers() const
51 {
52 return this->qualifier.flags.i != 0;
53 }
54
has_interpolation() const55 bool ast_type_qualifier::has_interpolation() const
56 {
57 return this->flags.q.smooth
58 || this->flags.q.flat
59 || this->flags.q.noperspective;
60 }
61
62 const char*
interpolation_string() const63 ast_type_qualifier::interpolation_string() const
64 {
65 if (this->flags.q.smooth)
66 return "smooth";
67 else if (this->flags.q.flat)
68 return "flat";
69 else if (this->flags.q.noperspective)
70 return "noperspective";
71 else
72 return NULL;
73 }
74
75 bool
merge_qualifier(YYLTYPE * loc,_mesa_glsl_parse_state * state,ast_type_qualifier q)76 ast_type_qualifier::merge_qualifier(YYLTYPE *loc,
77 _mesa_glsl_parse_state *state,
78 ast_type_qualifier q)
79 {
80 ast_type_qualifier ubo_mat_mask;
81 ubo_mat_mask.flags.i = 0;
82 ubo_mat_mask.flags.q.row_major = 1;
83 ubo_mat_mask.flags.q.column_major = 1;
84
85 ast_type_qualifier ubo_layout_mask;
86 ubo_layout_mask.flags.i = 0;
87 ubo_layout_mask.flags.q.std140 = 1;
88 ubo_layout_mask.flags.q.packed = 1;
89 ubo_layout_mask.flags.q.shared = 1;
90
91 /* Uniform block layout qualifiers get to overwrite each
92 * other (rightmost having priority), while all other
93 * qualifiers currently don't allow duplicates.
94 */
95
96 if ((this->flags.i & q.flags.i & ~(ubo_mat_mask.flags.i |
97 ubo_layout_mask.flags.i)) != 0) {
98 _mesa_glsl_error(loc, state,
99 "duplicate layout qualifiers used\n");
100 return false;
101 }
102
103 if ((q.flags.i & ubo_mat_mask.flags.i) != 0)
104 this->flags.i &= ~ubo_mat_mask.flags.i;
105 if ((q.flags.i & ubo_layout_mask.flags.i) != 0)
106 this->flags.i &= ~ubo_layout_mask.flags.i;
107
108 this->flags.i |= q.flags.i;
109
110 if (q.flags.q.explicit_location)
111 this->location = q.location;
112
113 if (q.flags.q.explicit_index)
114 this->index = q.index;
115
116 return true;
117 }
118
119