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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 #ifndef NIR_TYPES_H
29 #define NIR_TYPES_H
30 
31 #include <stdio.h>
32 #include <stdbool.h>
33 
34 /* C wrapper around compiler/glsl_types.h */
35 
36 #include "glsl_types.h"
37 
38 #ifdef __cplusplus
39 extern "C" {
40 #else
41 struct glsl_type;
42 #endif
43 
44 const char *glsl_get_type_name(const struct glsl_type *type);
45 
46 const struct glsl_type *glsl_get_struct_field(const struct glsl_type *type,
47                                               unsigned index);
48 
49 const struct glsl_type *glsl_get_array_element(const struct glsl_type *type);
50 const struct glsl_type *glsl_without_array(const struct glsl_type *type);
51 const struct glsl_type *glsl_get_array_instance(const struct glsl_type *type,
52                                                 unsigned array_size);
53 
54 const struct glsl_type *glsl_get_column_type(const struct glsl_type *type);
55 
56 const struct glsl_type *
57 glsl_get_function_return_type(const struct glsl_type *type);
58 
59 const struct glsl_function_param *
60 glsl_get_function_param(const struct glsl_type *type, unsigned index);
61 
62 enum glsl_base_type glsl_get_base_type(const struct glsl_type *type);
63 
64 unsigned glsl_get_vector_elements(const struct glsl_type *type);
65 
66 unsigned glsl_get_components(const struct glsl_type *type);
67 
68 unsigned glsl_get_matrix_columns(const struct glsl_type *type);
69 
70 unsigned glsl_get_length(const struct glsl_type *type);
71 
72 unsigned glsl_get_aoa_size(const struct glsl_type *type);
73 
74 unsigned glsl_count_attribute_slots(const struct glsl_type *type,
75                                     bool is_vertex_input);
76 
77 const char *glsl_get_struct_elem_name(const struct glsl_type *type,
78                                       unsigned index);
79 
80 enum glsl_sampler_dim glsl_get_sampler_dim(const struct glsl_type *type);
81 enum glsl_base_type glsl_get_sampler_result_type(const struct glsl_type *type);
82 
83 unsigned glsl_get_record_location_offset(const struct glsl_type *type,
84                                          unsigned length);
85 
86 static inline unsigned
glsl_get_bit_size(const struct glsl_type * type)87 glsl_get_bit_size(const struct glsl_type *type)
88 {
89    switch (glsl_get_base_type(type)) {
90    case GLSL_TYPE_INT:
91    case GLSL_TYPE_UINT:
92    case GLSL_TYPE_BOOL:
93    case GLSL_TYPE_FLOAT: /* TODO handle mediump */
94    case GLSL_TYPE_SUBROUTINE:
95       return 32;
96 
97    case GLSL_TYPE_FLOAT16:
98    case GLSL_TYPE_UINT16:
99    case GLSL_TYPE_INT16:
100       return 16;
101 
102    case GLSL_TYPE_DOUBLE:
103    case GLSL_TYPE_INT64:
104    case GLSL_TYPE_UINT64:
105    case GLSL_TYPE_IMAGE:
106    case GLSL_TYPE_SAMPLER:
107       return 64;
108 
109    default:
110       unreachable("unknown base type");
111    }
112 
113    return 0;
114 }
115 
116 bool glsl_type_is_64bit(const struct glsl_type *type);
117 bool glsl_type_is_void(const struct glsl_type *type);
118 bool glsl_type_is_error(const struct glsl_type *type);
119 bool glsl_type_is_vector(const struct glsl_type *type);
120 bool glsl_type_is_scalar(const struct glsl_type *type);
121 bool glsl_type_is_vector_or_scalar(const struct glsl_type *type);
122 bool glsl_type_is_matrix(const struct glsl_type *type);
123 bool glsl_type_is_array(const struct glsl_type *type);
124 bool glsl_type_is_array_of_arrays(const struct glsl_type *type);
125 bool glsl_type_is_struct(const struct glsl_type *type);
126 bool glsl_type_is_sampler(const struct glsl_type *type);
127 bool glsl_type_is_image(const struct glsl_type *type);
128 bool glsl_type_is_dual_slot(const struct glsl_type *type);
129 bool glsl_type_is_numeric(const struct glsl_type *type);
130 bool glsl_type_is_boolean(const struct glsl_type *type);
131 bool glsl_sampler_type_is_shadow(const struct glsl_type *type);
132 bool glsl_sampler_type_is_array(const struct glsl_type *type);
133 
134 const struct glsl_type *glsl_void_type(void);
135 const struct glsl_type *glsl_float_type(void);
136 const struct glsl_type *glsl_float16_t_type(void);
137 const struct glsl_type *glsl_double_type(void);
138 const struct glsl_type *glsl_vec_type(unsigned n);
139 const struct glsl_type *glsl_dvec_type(unsigned n);
140 const struct glsl_type *glsl_vec4_type(void);
141 const struct glsl_type *glsl_uvec4_type(void);
142 const struct glsl_type *glsl_int_type(void);
143 const struct glsl_type *glsl_uint_type(void);
144 const struct glsl_type *glsl_int64_t_type(void);
145 const struct glsl_type *glsl_uint64_t_type(void);
146 const struct glsl_type *glsl_int16_t_type(void);
147 const struct glsl_type *glsl_uint16_t_type(void);
148 const struct glsl_type *glsl_bool_type(void);
149 
150 const struct glsl_type *glsl_scalar_type(enum glsl_base_type base_type);
151 const struct glsl_type *glsl_vector_type(enum glsl_base_type base_type,
152                                          unsigned components);
153 const struct glsl_type *glsl_matrix_type(enum glsl_base_type base_type,
154                                          unsigned rows, unsigned columns);
155 const struct glsl_type *glsl_array_type(const struct glsl_type *base,
156                                         unsigned elements);
157 const struct glsl_type *glsl_struct_type(const struct glsl_struct_field *fields,
158                                          unsigned num_fields, const char *name);
159 const struct glsl_type *glsl_interface_type(const struct glsl_struct_field *fields,
160                                             unsigned num_fields,
161                                             enum glsl_interface_packing packing,
162                                             bool row_major,
163                                             const char *block_name);
164 const struct glsl_type *glsl_sampler_type(enum glsl_sampler_dim dim,
165                                           bool is_shadow, bool is_array,
166                                           enum glsl_base_type base_type);
167 const struct glsl_type *glsl_bare_sampler_type();
168 const struct glsl_type *glsl_image_type(enum glsl_sampler_dim dim,
169                                         bool is_array,
170                                         enum glsl_base_type base_type);
171 const struct glsl_type * glsl_function_type(const struct glsl_type *return_type,
172                                             const struct glsl_function_param *params,
173                                             unsigned num_params);
174 
175 const struct glsl_type *glsl_transposed_type(const struct glsl_type *type);
176 
177 const struct glsl_type *glsl_channel_type(const struct glsl_type *type);
178 
179 #ifdef __cplusplus
180 }
181 #endif
182 
183 #endif /* NIR_TYPES_H */
184