2 * Mesa 3-D graphics library
4 * Copyright (C) 1999-2008 Brian Paul All Rights Reserved.
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the "Software"),
8 * to deal in the Software without restriction, including without limitation
9 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
10 * and/or sell copies of the Software, and to permit persons to whom the
11 * Software is furnished to do so, subject to the following conditions:
13 * The above copyright notice and this permission notice shall be included
14 * in all copies or substantial portions of the Software.
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
17 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
20 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
21 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
22 * OTHER DEALINGS IN THE SOFTWARE.
30 #define GL_GLEXT_PROTOTYPES
36 #include "glapi/glapi.h"
46 init_glapi_relocs_once(void);
50 generate_entrypoint(unsigned int functionOffset
);
54 fill_in_entrypoint_offset(_glapi_proc entrypoint
, unsigned int offset
);
58 get_entrypoint_address(unsigned int functionOffset
);
62 * Size (in bytes) of dispatch function (entrypoint).
64 #if defined(USE_X86_ASM)
65 # if defined(GLX_USE_TLS)
66 # define DISPATCH_FUNCTION_SIZE 16
68 # define DISPATCH_FUNCTION_SIZE 32
72 #if defined(USE_X64_64_ASM)
73 # if defined(GLX_USE_TLS)
74 # define DISPATCH_FUNCTION_SIZE 16
80 * Number of extension functions which we can dynamically add at runtime.
82 * Number of extension functions is also subject to the size of backing exec
83 * mem we allocate. For the common case of dispatch stubs with size 16 bytes,
84 * the two limits will be hit simultaneously. For larger dispatch function
85 * sizes, MAX_EXTENSION_FUNCS is effectively reduced.
87 #define MAX_EXTENSION_FUNCS 256