1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
|
/*
* Mesa 3-D graphics library
* Version: 7.1
*
* Copyright (C) 1999-2008 Brian Paul All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
* AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
/**
* \mainpage Mesa GL API Module
*
* \section GLAPIIntroduction Introduction
*
* The Mesa GL API module is responsible for dispatching all the
* gl*() functions. All GL functions are dispatched by jumping through
* the current dispatch table (basically a struct full of function
* pointers.)
*
* A per-thread current dispatch table and per-thread current context
* pointer are managed by this module too.
*
* This module is intended to be non-Mesa-specific so it can be used
* with the X/DRI libGL also.
*/
#ifndef _GLAPI_H
#define _GLAPI_H
#include "glapi/glthread.h"
#ifdef __cplusplus
extern "C" {
#endif
#ifdef _GLAPI_NO_EXPORTS
# define _GLAPI_EXPORT
#else /* _GLAPI_NO_EXPORTS */
# ifdef _WIN32
# ifdef _GLAPI_DLL_EXPORTS
# define _GLAPI_EXPORT __declspec(dllexport)
# else
# define _GLAPI_EXPORT __declspec(dllimport)
# endif
# elif defined(__GNUC__) || (defined(__SUNPRO_C) && (__SUNPRO_C >= 0x590))
# define _GLAPI_EXPORT __attribute__((visibility("default")))
# else
# define _GLAPI_EXPORT
# endif
#endif /* _GLAPI_NO_EXPORTS */
/* Is this needed? It is incomplete anyway. */
#ifdef USE_MGL_NAMESPACE
#define _glapi_set_dispatch _mglapi_set_dispatch
#define _glapi_get_dispatch _mglapi_get_dispatch
#define _glapi_set_context _mglapi_set_context
#define _glapi_get_context _mglapi_get_context
#define _glapi_Dispatch _mglapi_Dispatch
#define _glapi_Context _mglapi_Context
#endif
typedef void (*_glapi_proc)(void);
struct _glapi_table;
#if defined (GLX_USE_TLS)
_GLAPI_EXPORT extern __thread struct _glapi_table * _glapi_tls_Dispatch
__attribute__((tls_model("initial-exec")));
_GLAPI_EXPORT extern __thread void * _glapi_tls_Context
__attribute__((tls_model("initial-exec")));
_GLAPI_EXPORT extern const struct _glapi_table *_glapi_Dispatch;
_GLAPI_EXPORT extern const void *_glapi_Context;
# define GET_DISPATCH() _glapi_tls_Dispatch
# define GET_CURRENT_CONTEXT(C) struct gl_context *C = (struct gl_context *) _glapi_tls_Context
#else
_GLAPI_EXPORT extern struct _glapi_table *_glapi_Dispatch;
_GLAPI_EXPORT extern void *_glapi_Context;
# ifdef THREADS
# define GET_DISPATCH() \
(likely(_glapi_Dispatch) ? _glapi_Dispatch : _glapi_get_dispatch())
# define GET_CURRENT_CONTEXT(C) struct gl_context *C = (struct gl_context *) \
(likely(_glapi_Context) ? _glapi_Context : _glapi_get_context())
# else
# define GET_DISPATCH() _glapi_Dispatch
# define GET_CURRENT_CONTEXT(C) struct gl_context *C = (struct gl_context *) _glapi_Context
# endif
#endif /* defined (GLX_USE_TLS) */
void
_glapi_destroy_multithread(void);
_GLAPI_EXPORT void
_glapi_check_multithread(void);
_GLAPI_EXPORT void
_glapi_set_context(void *context);
_GLAPI_EXPORT void *
_glapi_get_context(void);
_GLAPI_EXPORT void
_glapi_set_dispatch(struct _glapi_table *dispatch);
_GLAPI_EXPORT struct _glapi_table *
_glapi_get_dispatch(void);
_GLAPI_EXPORT unsigned int
_glapi_get_dispatch_table_size(void);
_GLAPI_EXPORT int
_glapi_add_dispatch( const char * const * function_names,
const char * parameter_signature );
_GLAPI_EXPORT int
_glapi_get_proc_offset(const char *funcName);
_GLAPI_EXPORT _glapi_proc
_glapi_get_proc_address(const char *funcName);
_GLAPI_EXPORT const char *
_glapi_get_proc_name(unsigned int offset);
_GLAPI_EXPORT struct _glapi_table *
_glapi_create_table_from_handle(void *handle, const char *symbol_prefix);
_GLAPI_EXPORT unsigned long
_glthread_GetID(void);
/*
* These stubs are kept so that the old DRI drivers still load.
*/
_GLAPI_EXPORT void
_glapi_noop_enable_warnings(unsigned char enable);
_GLAPI_EXPORT void
_glapi_set_warning_func(_glapi_proc func);
#ifdef __cplusplus
}
#endif
#endif /* _GLAPI_H */
|
