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"
25extern "C" {
26#include "program/symbol_table.h"
27}
28
29void
30ast_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
49bool
50ast_fully_specified_type::has_qualifiers() const
51{
52   return this->qualifier.flags.i != 0;
53}
54
55bool 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
62const char*
63ast_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
75bool
76ast_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