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 /* The define of GL_COVERAGE_SAMPLES_NV in gl2ext.h is guarded by a different
  42  * extension (GL_NV_coverage_sample) than in glext.h
  43  * (GL_NV_multisample_coverage).  Just undefine it to avoid spurious compiler
  44  * warnings.
  45  */
  46 #undef GL_COVERAGE_SAMPLES_NV
  47
  48 #include "GLES2/gl2platform.h"
  49 #include "GLES2/gl2ext.h"
  50
  51 #ifndef GL_OES_fixed_point
  52 typedef int GLfixed;
  53 typedef int GLclampx;
  54 #endif
  55
  56 #ifndef GL_OES_EGL_image
  57 typedef void *GLeglImageOES;
  58 #endif
  59
  60 #endif /* HAVE_DIX_CONFIG_H */
  61
  62 #include "glapi/glapi.h"
  63
  64
  65 /* getproc */
  66
  67 extern void
  68 _glapi_check_table_not_null(const struct _glapi_table *table);
  69
  70
  71 extern void
  72 _glapi_check_table(const struct _glapi_table *table);
  73
  74
  75 /* entrypoint */
  76
  77 extern void
  78 init_glapi_relocs_once(void);
  79
  80
  81 extern _glapi_proc
  82 generate_entrypoint(unsigned int functionOffset);
  83
  84
  85 extern void
  86 fill_in_entrypoint_offset(_glapi_proc entrypoint, unsigned int offset);
  87
  88
  89 extern _glapi_proc
  90 get_entrypoint_address(unsigned int functionOffset);
  91
  92
  93 /**
  94  * Size (in bytes) of dispatch function (entrypoint).
  95  */
  96 #if defined(USE_X86_ASM)
  97 # if defined(GLX_USE_TLS)
  98 #  define DISPATCH_FUNCTION_SIZE  16
  99 # elif defined(THREADS)
 100 #  define DISPATCH_FUNCTION_SIZE  32
 101 # else
 102 #  define DISPATCH_FUNCTION_SIZE  16
 103 # endif
 104 #endif
 105
 106 #if defined(USE_X64_64_ASM)
 107 # if defined(GLX_USE_TLS)
 108 #  define DISPATCH_FUNCTION_SIZE  16
 109 # endif
 110 #endif
 111
 112
 113 /**
 114  * Number of extension functions which we can dynamically add at runtime.
 115  *
 116  * Number of extension functions is also subject to the size of backing exec
 117  * mem we allocate. For the common case of dispatch stubs with size 16 bytes,
 118  * the two limits will be hit simultaneously. For larger dispatch function
 119  * sizes, MAX_EXTENSION_FUNCS is effectively reduced.
 120  */
 121 #define MAX_EXTENSION_FUNCS 256
 122
 123
 124 #endif