src/mapi/glapi/glapi_priv.h

   1 /*
   2  * Mesa 3-D graphics library
   3  *
   4  * Copyright (C) 1999-2008  Brian Paul   All Rights Reserved.
   5  *
   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:
  12  *
  13  * The above copyright notice and this permission notice shall be included
  14  * in all copies or substantial portions of the Software.
  15  *
  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.
  23  */
  24
  25
  26 #ifndef _GLAPI_PRIV_H
  27 #define _GLAPI_PRIV_H
  28
  29
  30 #ifdef HAVE_DIX_CONFIG_H
  31 #include <dix-config.h>
  32 #include "glapi/mesa.h"
  33 #else /* HAVE_DIX_CONFIG_H */
  34 #define GL_GLEXT_PROTOTYPES
  35 #include "GL/gl.h"
  36 #include "GL/glext.h"
  37
  38 #ifndef GL_OES_fixed_point
  39 typedef int GLfixed;
  40 #endif
  41 typedef int GLclampx;
  42
  43 #ifndef GL_OES_EGL_image
  44 typedef void *GLeglImageOES;
  45 #endif
  46
  47 #endif /* HAVE_DIX_CONFIG_H */
  48
  49 #include "glapi/glapi.h"
  50
  51
  52 /* getproc */
  53
  54 extern void
  55 _glapi_check_table_not_null(const struct _glapi_table *table);
  56
  57
  58 extern void
  59 _glapi_check_table(const struct _glapi_table *table);
  60
  61
  62 /* entrypoint */
  63
  64 extern void
  65 init_glapi_relocs_once(void);
  66
  67
  68 extern _glapi_proc
  69 generate_entrypoint(unsigned int functionOffset);
  70
  71
  72 extern void
  73 fill_in_entrypoint_offset(_glapi_proc entrypoint, unsigned int offset);
  74
  75
  76 extern _glapi_proc
  77 get_entrypoint_address(unsigned int functionOffset);
  78
  79
  80 /**
  81  * Size (in bytes) of dispatch function (entrypoint).
  82  */
  83 #if defined(USE_X86_ASM)
  84 # if defined(GLX_USE_TLS)
  85 #  define DISPATCH_FUNCTION_SIZE  16
  86 # else
  87 #  define DISPATCH_FUNCTION_SIZE  32
  88 # endif
  89 #endif
  90
  91 #if defined(USE_X64_64_ASM)
  92 # if defined(GLX_USE_TLS)
  93 #  define DISPATCH_FUNCTION_SIZE  16
  94 # endif
  95 #endif
  96
  97
  98 /**
  99  * Number of extension functions which we can dynamically add at runtime.
 100  *
 101  * Number of extension functions is also subject to the size of backing exec
 102  * mem we allocate. For the common case of dispatch stubs with size 16 bytes,
 103  * the two limits will be hit simultaneously. For larger dispatch function
 104  * sizes, MAX_EXTENSION_FUNCS is effectively reduced.
 105  */
 106 #define MAX_EXTENSION_FUNCS 256
 107
 108
 109 #endif