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 #define GL_GLEXT_PROTOTYPES
  31 #include "GL/gl.h"
  32 #include "GL/glext.h"
  33
  34 #ifndef GL_OES_fixed_point
  35 typedef int GLfixed;
  36 #endif
  37 typedef int GLclampx;
  38
  39 #ifndef GL_OES_EGL_image
  40 typedef void *GLeglImageOES;
  41 #endif
  42
  43 #include "glapi/glapi.h"
  44
  45
  46 #ifdef __cplusplus
  47 extern "C" {
  48 #endif
  49
  50 /* entrypoint */
  51
  52 extern void
  53 init_glapi_relocs_once(void);
  54
  55
  56 extern _glapi_proc
  57 generate_entrypoint(unsigned int functionOffset);
  58
  59
  60 extern void
  61 fill_in_entrypoint_offset(_glapi_proc entrypoint, unsigned int offset);
  62
  63
  64 extern _glapi_proc
  65 get_entrypoint_address(unsigned int functionOffset);
  66
  67
  68 /**
  69  * Size (in bytes) of dispatch function (entrypoint).
  70  */
  71 #if defined(USE_X86_ASM)
  72 # if defined(GLX_USE_TLS)
  73 #  define DISPATCH_FUNCTION_SIZE  16
  74 # else
  75 #  define DISPATCH_FUNCTION_SIZE  32
  76 # endif
  77 #endif
  78
  79 #if defined(USE_X64_64_ASM)
  80 # if defined(GLX_USE_TLS)
  81 #  define DISPATCH_FUNCTION_SIZE  16
  82 # endif
  83 #endif
  84
  85
  86 /**
  87  * Number of extension functions which we can dynamically add at runtime.
  88  *
  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.
  93  */
  94 #define MAX_EXTENSION_FUNCS 256
  95
  96
  97 #ifdef __cplusplus
  98 }
  99 #endif
 100
 101 #endif