src/mesa/main/glheader.h

   1 /**
   2  * \file glheader.h
   3  * Top-most include file.
   4  *
   5  * This is the top-most include file of the Mesa sources.
   6  * It includes gl.h and all system headers which are needed.
   7  * Other Mesa source files should \e not directly include any system
   8  * headers.  This allows system-dependent hacks/workarounds to be
   9  * collected in one place.
  10  *
  11  * \note Actually, a lot of system-dependent stuff is now in imports.[ch].
  12  *
  13  * If you touch this file, everything gets recompiled!
  14  *
  15  * This file should be included before any other header in the .c files.
  16  *
  17  * Put compiler/OS/assembly pragmas and macros here to avoid
  18  * cluttering other source files.
  19  */
  20
  21 /*
  22  * Mesa 3-D graphics library
  23  * Version:  6.5
  24  *
  25  * Copyright (C) 1999-2005  Brian Paul   All Rights Reserved.
  26  *
  27  * Permission is hereby granted, free of charge, to any person obtaining a
  28  * copy of this software and associated documentation files (the "Software"),
  29  * to deal in the Software without restriction, including without limitation
  30  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  31  * and/or sell copies of the Software, and to permit persons to whom the
  32  * Software is furnished to do so, subject to the following conditions:
  33  *
  34  * The above copyright notice and this permission notice shall be included
  35  * in all copies or substantial portions of the Software.
  36  *
  37  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  38  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  39  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  40  * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
  41  * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  42  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  43  */
  44
  45
  46 #ifndef GLHEADER_H
  47 #define GLHEADER_H
  48
  49 #include <assert.h>
  50 #include <ctype.h>
  51 #if defined(__alpha__) && defined(CCPML)
  52 #include <cpml.h> /* use Compaq's Fast Math Library on Alpha */
  53 #else
  54 #include <math.h>
  55 #endif
  56 #include <limits.h>
  57 #include <stdlib.h>
  58 #include <stdio.h>
  59 #include <string.h>
  60 #if defined(__linux__) && defined(__i386__)
  61 #include <fpu_control.h>
  62 #endif
  63 #include <float.h>
  64 #include <stdarg.h>
  65
  66
  67 /* Get typedefs for uintptr_t and friends */
  68 #if defined(__MINGW32__) || defined(__NetBSD__)
  69 #  include <stdint.h>
  70 #elif defined(_WIN32)
  71 #  include <BaseTsd.h>
  72 #  if _MSC_VER == 1200
  73      typedef UINT_PTR uintptr_t;
  74 #  endif
  75 #else
  76 #  include <inttypes.h>
  77 #endif
  78
  79 #if defined(_WIN32) && !defined(__WIN32__) && !defined(__CYGWIN__) && !defined(BUILD_FOR_SNAP)
  80 #  define __WIN32__
  81 #  define finite _finite
  82 #endif
  83
  84 #if defined(__WATCOMC__)
  85 #  define finite _finite
  86 #  pragma disable_message(201) /* Disable unreachable code warnings */
  87 #endif
  88
  89 #ifdef WGLAPI
  90 #       undef WGLAPI
  91 #endif
  92
  93 #if !defined(OPENSTEP) && (defined(__WIN32__) && !defined(__CYGWIN__)) && !defined(BUILD_FOR_SNAP)
  94 #  if !defined(__GNUC__) /* mingw environment */
  95 #    pragma warning( disable : 4068 ) /* unknown pragma */
  96 #    pragma warning( disable : 4710 ) /* function 'foo' not inlined */
  97 #    pragma warning( disable : 4711 ) /* function 'foo' selected for automatic inline expansion */
  98 #    pragma warning( disable : 4127 ) /* conditional expression is constant */
  99 #    if defined(MESA_MINWARN)
 100 #      pragma warning( disable : 4244 ) /* '=' : conversion from 'const double ' to 'float ', possible loss of data */
 101 #      pragma warning( disable : 4018 ) /* '<' : signed/unsigned mismatch */
 102 #      pragma warning( disable : 4305 ) /* '=' : truncation from 'const double ' to 'float ' */
 103 #      pragma warning( disable : 4550 ) /* 'function' undefined; assuming extern returning int */
 104 #      pragma warning( disable : 4761 ) /* integral size mismatch in argument; conversion supplied */
 105 #    endif
 106 #  endif
 107 #  if (defined(_MSC_VER) || defined(__MINGW32__)) && defined(BUILD_GL32) /* tag specify we're building mesa as a DLL */
 108 #    define WGLAPI __declspec(dllexport)
 109 #  elif (defined(_MSC_VER) || defined(__MINGW32__)) && defined(_DLL) /* tag specifying we're building for DLL runtime support */
 110 #    define WGLAPI __declspec(dllimport)
 111 #  else /* for use with static link lib build of Win32 edition only */
 112 #    define WGLAPI __declspec(dllimport)
 113 #  endif /* _STATIC_MESA support */
 114 #endif /* WIN32 / CYGWIN bracket */
 115
 116
 117 /*
 118  * Either define MESA_BIG_ENDIAN or MESA_LITTLE_ENDIAN.
 119  * Do not use them unless absolutely necessary!
 120  * Try to use a runtime test instead.
 121  * For now, only used by some DRI hardware drivers for color/texel packing.
 122  */
 123 #if defined(BYTE_ORDER) && defined(BIG_ENDIAN) && BYTE_ORDER == BIG_ENDIAN
 124 #if defined(__linux__)
 125 #include <byteswap.h>
 126 #define CPU_TO_LE32( x )        bswap_32( x )
 127 #else /*__linux__*/
 128 #define CPU_TO_LE32( x )        ( x )  /* fix me for non-Linux big-endian! */
 129 #endif /*__linux__*/
 130 #define MESA_BIG_ENDIAN 1
 131 #else
 132 #define CPU_TO_LE32( x )        ( x )
 133 #define MESA_LITTLE_ENDIAN 1
 134 #endif
 135 #define LE32_TO_CPU( x )        CPU_TO_LE32( x )
 136
 137
 138 #define GL_GLEXT_PROTOTYPES
 139 #include "GL/gl.h"
 140 #include "GL/glext.h"
 141
 142
 143 #if !defined(CAPI) && defined(WIN32) && !defined(BUILD_FOR_SNAP)
 144 #define CAPI _cdecl
 145 #endif
 146
 147
 148 /* This is a macro on IRIX */
 149 #ifdef _P
 150 #undef _P
 151 #endif
 152
 153
 154 /* Turn off macro checking systems used by other libraries */
 155 #ifdef CHECK
 156 #undef CHECK
 157 #endif
 158
 159
 160 /* Create a macro so that asm functions can be linked into compilers other
 161  * than GNU C
 162  */
 163 #ifndef _ASMAPI
 164 #if defined(WIN32) && !defined(BUILD_FOR_SNAP)/* was: !defined( __GNUC__ ) && !defined( VMS ) && !defined( __INTEL_COMPILER )*/
 165 #define _ASMAPI __cdecl
 166 #else
 167 #define _ASMAPI
 168 #endif
 169 #ifdef  PTR_DECL_IN_FRONT
 170 #define _ASMAPIP * _ASMAPI
 171 #else
 172 #define _ASMAPIP _ASMAPI *
 173 #endif
 174 #endif
 175
 176 #ifdef USE_X86_ASM
 177 #define _NORMAPI _ASMAPI
 178 #define _NORMAPIP _ASMAPIP
 179 #else
 180 #define _NORMAPI
 181 #define _NORMAPIP *
 182 #endif
 183
 184
 185 /* Function inlining */
 186 #if defined(__GNUC__)
 187 #  define INLINE __inline__
 188 #elif defined(__MSC__)
 189 #  define INLINE __inline
 190 #elif defined(_MSC_VER)
 191 #  define INLINE __inline
 192 #elif defined(__ICL)
 193 #  define INLINE __inline
 194 #elif defined(__INTEL_COMPILER)
 195 #  define INLINE inline
 196 #elif defined(__WATCOMC__) && (__WATCOMC__ >= 1100)
 197 #  define INLINE __inline
 198 #else
 199 #  define INLINE
 200 #endif
 201
 202
 203 /* If we build the library with gcc's -fvisibility=hidden flag, we'll
 204  * use the PUBLIC macro to mark functions that are to be exported.
 205  *
 206  * We also need to define a USED attribute, so the optimizer doesn't
 207  * inline a static function that we later use in an alias. - ajax
 208  */
 209 #if defined(__GNUC__) && (__GNUC__ * 100 + __GNUC_MINOR__) >= 303
 210 #  define PUBLIC __attribute__((visibility("default")))
 211 #  define USED __attribute__((used))
 212 #else
 213 #  define PUBLIC
 214 #  define USED
 215 #endif
 216
 217
 218 /* Some compilers don't like some of Mesa's const usage */
 219 #ifdef NO_CONST
 220 #  define CONST
 221 #else
 222 #  define CONST const
 223 #endif
 224
 225
 226 #if defined(BUILD_FOR_SNAP) && defined(CHECKED)
 227 #  define ASSERT(X)   _CHECK(X)
 228 #elif defined(DEBUG)
 229 #  define ASSERT(X)   assert(X)
 230 #else
 231 #  define ASSERT(X)
 232 #endif
 233
 234
 235 #if (!defined(__GNUC__) || __GNUC__ < 3) && (!defined(__IBMC__) || __IBMC__ < 900)
 236 #  define __builtin_expect(x, y) x
 237 #endif
 238
 239 /* The __FUNCTION__ gcc variable is generally only used for debugging.
 240  * If we're not using gcc, define __FUNCTION__ as a cpp symbol here.
 241  * Don't define it if using a newer Windows compiler.
 242  */
 243 #if defined(__VMS)
 244 # define __FUNCTION__ "VMS$NL:"
 245 #elif __STDC_VERSION__ < 199901L
 246 # if ((!defined __GNUC__) || (__GNUC__ < 2)) && (!defined __xlC__) && \
 247       (!defined(_MSC_VER) || _MSC_VER < 1300)
 248 #  define __FUNCTION__ "<unknown>"
 249 # endif
 250 #endif
 251
 252
 253 #include "config.h"
 254
 255 #endif /* GLHEADER_H */