src/mapi/glapi/glapi_priv.h

   1 /*
   2  * Mesa 3-D graphics library
   3  * Version:  7.1
   4  *
   5  * Copyright (C) 1999-2008  Brian Paul   All Rights Reserved.
   6  *
   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:
  13  *
  14  * The above copyright notice and this permission notice shall be included
  15  * in all copies or substantial portions of the Software.
  16  *
  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.
  23  */
  24
  25
  26 #ifndef _GLAPI_PRIV_H
  27 #define _GLAPI_PRIV_H
  28
  29 #include <stdlib.h>
  30 #include <string.h>
  31 #include <stdio.h>
  32
  33 #ifdef HAVE_DIX_CONFIG_H
  34 #include <dix-config.h>
  35 #include "glapi/mesa.h"
  36 #else /* HAVE_DIX_CONFIG_H */
  37 #define GL_GLEXT_PROTOTYPES
  38 #include "GL/gl.h"
  39 #include "GL/glext.h"
  40
  41 #ifndef GL_OES_fixed_point
  42 typedef int GLfixed;
  43 typedef int GLclampx;
  44 #endif
  45
  46 #ifndef GL_OES_EGL_image
  47 typedef void *GLeglImageOES;
  48 #endif
  49
  50 #endif /* HAVE_DIX_CONFIG_H */
  51
  52 #include "glapi/glapi.h"
  53
  54
  55 /* getproc */
  56
  57 extern void
  58 _glapi_check_table_not_null(const struct _glapi_table *table);
  59
  60
  61 extern void
  62 _glapi_check_table(const struct _glapi_table *table);
  63
  64
  65 /* entrypoint */
  66
  67 extern void
  68 init_glapi_relocs_once(void);
  69
  70
  71 extern _glapi_proc
  72 generate_entrypoint(unsigned int functionOffset);
  73
  74
  75 extern void
  76 fill_in_entrypoint_offset(_glapi_proc entrypoint, unsigned int offset);
  77
  78
  79 extern _glapi_proc
  80 get_entrypoint_address(unsigned int functionOffset);
  81
  82
  83 /**
  84  * Size (in bytes) of dispatch function (entrypoint).
  85  */
  86 #if defined(USE_X86_ASM)
  87 # if defined(GLX_USE_TLS)
  88 #  define DISPATCH_FUNCTION_SIZE  16
  89 # elif defined(THREADS)
  90 #  define DISPATCH_FUNCTION_SIZE  32
  91 # else
  92 #  define DISPATCH_FUNCTION_SIZE  16
  93 # endif
  94 #endif
  95
  96 #if defined(USE_X64_64_ASM)
  97 # if defined(GLX_USE_TLS)
  98 #  define DISPATCH_FUNCTION_SIZE  16
  99 # endif
 100 #endif
 101
 102
 103 /**
 104  * Number of extension functions which we can dynamically add at runtime.
 105  *
 106  * Number of extension functions is also subject to the size of backing exec
 107  * mem we allocate. For the common case of dispatch stubs with size 16 bytes,
 108  * the two limits will be hit simultaneously. For larger dispatch function
 109  * sizes, MAX_EXTENSION_FUNCS is effectively reduced.
 110  */
 111 #define MAX_EXTENSION_FUNCS 256
 112
 113
 114 #endif