1 /*
2 * Copyright © 2014 Connor Abbott
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 DEALINGS
21 * IN THE SOFTWARE.
22 *
23 * Authors:
24 * Connor Abbott (cwabbott0@gmail.com)
25 *
26 */
27
28 #pragma once
29
30 #include <stdio.h>
31 #include <stdbool.h>
32
33 /* C wrapper around compiler/glsl_types.h */
34
35 #include "glsl_types.h"
36
37 #ifdef __cplusplus
38 extern "C" {
39 #else
40 struct glsl_type;
41 #endif
42
43 const char *glsl_get_type_name(const struct glsl_type *type);
44
45 const struct glsl_type *glsl_get_struct_field(const struct glsl_type *type,
46 unsigned index);
47
48 const struct glsl_type *glsl_get_array_element(const struct glsl_type *type);
49 const struct glsl_type *glsl_without_array(const struct glsl_type *type);
50
51 const struct glsl_type *glsl_get_column_type(const struct glsl_type *type);
52
53 const struct glsl_type *
54 glsl_get_function_return_type(const struct glsl_type *type);
55
56 const struct glsl_function_param *
57 glsl_get_function_param(const struct glsl_type *type, unsigned index);
58
59 enum glsl_base_type glsl_get_base_type(const struct glsl_type *type);
60
61 unsigned glsl_get_vector_elements(const struct glsl_type *type);
62
63 unsigned glsl_get_components(const struct glsl_type *type);
64
65 unsigned glsl_get_matrix_columns(const struct glsl_type *type);
66
67 unsigned glsl_get_length(const struct glsl_type *type);
68
69 unsigned glsl_get_aoa_size(const struct glsl_type *type);
70
71 unsigned glsl_count_attribute_slots(const struct glsl_type *type,
72 bool is_vertex_input);
73
74 const char *glsl_get_struct_elem_name(const struct glsl_type *type,
75 unsigned index);
76
77 enum glsl_sampler_dim glsl_get_sampler_dim(const struct glsl_type *type);
78 enum glsl_base_type glsl_get_sampler_result_type(const struct glsl_type *type);
79
80 unsigned glsl_get_record_location_offset(const struct glsl_type *type,
81 unsigned length);
82
83 static inline unsigned
glsl_get_bit_size(const struct glsl_type * type)84 glsl_get_bit_size(const struct glsl_type *type)
85 {
86 switch (glsl_get_base_type(type)) {
87 case GLSL_TYPE_INT:
88 case GLSL_TYPE_UINT:
89 case GLSL_TYPE_BOOL:
90 case GLSL_TYPE_FLOAT: /* TODO handle mediump */
91 case GLSL_TYPE_SUBROUTINE:
92 return 32;
93
94 case GLSL_TYPE_DOUBLE:
95 return 64;
96
97 default:
98 unreachable("unknown base type");
99 }
100
101 return 0;
102 }
103
104 bool glsl_type_is_void(const struct glsl_type *type);
105 bool glsl_type_is_error(const struct glsl_type *type);
106 bool glsl_type_is_vector(const struct glsl_type *type);
107 bool glsl_type_is_scalar(const struct glsl_type *type);
108 bool glsl_type_is_vector_or_scalar(const struct glsl_type *type);
109 bool glsl_type_is_matrix(const struct glsl_type *type);
110 bool glsl_type_is_array(const struct glsl_type *type);
111 bool glsl_type_is_array_of_arrays(const struct glsl_type *type);
112 bool glsl_type_is_struct(const struct glsl_type *type);
113 bool glsl_type_is_sampler(const struct glsl_type *type);
114 bool glsl_type_is_image(const struct glsl_type *type);
115 bool glsl_type_is_dual_slot(const struct glsl_type *type);
116 bool glsl_type_is_numeric(const struct glsl_type *type);
117 bool glsl_type_is_boolean(const struct glsl_type *type);
118 bool glsl_sampler_type_is_shadow(const struct glsl_type *type);
119 bool glsl_sampler_type_is_array(const struct glsl_type *type);
120
121 const struct glsl_type *glsl_void_type(void);
122 const struct glsl_type *glsl_float_type(void);
123 const struct glsl_type *glsl_double_type(void);
124 const struct glsl_type *glsl_vec_type(unsigned n);
125 const struct glsl_type *glsl_dvec_type(unsigned n);
126 const struct glsl_type *glsl_vec4_type(void);
127 const struct glsl_type *glsl_int_type(void);
128 const struct glsl_type *glsl_uint_type(void);
129 const struct glsl_type *glsl_bool_type(void);
130
131 const struct glsl_type *glsl_scalar_type(enum glsl_base_type base_type);
132 const struct glsl_type *glsl_vector_type(enum glsl_base_type base_type,
133 unsigned components);
134 const struct glsl_type *glsl_matrix_type(enum glsl_base_type base_type,
135 unsigned rows, unsigned columns);
136 const struct glsl_type *glsl_array_type(const struct glsl_type *base,
137 unsigned elements);
138 const struct glsl_type *glsl_struct_type(const struct glsl_struct_field *fields,
139 unsigned num_fields, const char *name);
140 const struct glsl_type *glsl_sampler_type(enum glsl_sampler_dim dim,
141 bool is_shadow, bool is_array,
142 enum glsl_base_type base_type);
143 const struct glsl_type *glsl_bare_sampler_type();
144 const struct glsl_type *glsl_image_type(enum glsl_sampler_dim dim,
145 bool is_array,
146 enum glsl_base_type base_type);
147 const struct glsl_type * glsl_function_type(const struct glsl_type *return_type,
148 const struct glsl_function_param *params,
149 unsigned num_params);
150
151 const struct glsl_type *glsl_transposed_type(const struct glsl_type *type);
152
153 #ifdef __cplusplus
154 }
155 #endif
156