2 * Mesa 3-D graphics library
5 * Copyright (C) 1999-2008 Brian Paul All Rights Reserved.
7 * Permission is hereby granted, free of charge, to any person obtaining a
8 * copy of this software and associated documentation files (the "Software"),
9 * to deal in the Software without restriction, including without limitation
10 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
11 * and/or sell copies of the Software, and to permit persons to whom the
12 * Software is furnished to do so, subject to the following conditions:
14 * The above copyright notice and this permission notice shall be included
15 * in all copies or substantial portions of the Software.
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
18 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
20 * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
21 * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
22 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
35 _glapi_check_table_not_null(const struct _glapi_table
*table
);
39 _glapi_check_table(const struct _glapi_table
*table
);
45 _glapi_exec_malloc(GLuint size
);
51 init_glapi_relocs_once(void);
55 generate_entrypoint(GLuint functionOffset
);
59 fill_in_entrypoint_offset(_glapi_proc entrypoint
, GLuint offset
);
63 get_entrypoint_address(GLuint functionOffset
);
67 * Size (in bytes) of dispatch function (entrypoint).
69 #if defined(USE_X86_ASM)
70 # if defined(GLX_USE_TLS)
71 # define DISPATCH_FUNCTION_SIZE 16
72 # elif defined(THREADS)
73 # define DISPATCH_FUNCTION_SIZE 32
75 # define DISPATCH_FUNCTION_SIZE 16
79 #if defined(USE_X64_64_ASM)
80 # if defined(GLX_USE_TLS)
81 # define DISPATCH_FUNCTION_SIZE 16
87 * Number of extension functions which we can dynamically add at runtime.
89 * Number of extension functions is also subject to the size of backing exec
90 * mem we allocate. For the common case of dispatch stubs with size 16 bytes,
91 * the two limits will be hit simultaneously. For larger dispatch function
92 * sizes, MAX_EXTENSION_FUNCS is effectively reduced.
94 #define MAX_EXTENSION_FUNCS 256