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 #elif defined(__INTERIX)
  76 /* Interix 3.x has a gcc that shadows this. */
  77 #  ifndef _UINTPTR_T_DEFINED
  78      typedef unsigned long uintptr_t;
  79 #  define _UINTPTR_T_DEFINED
  80 #  endif
  81 #else
  82 #  include <inttypes.h>
  83 #endif
  84
  85
  86 /* Sun compilers define __i386 instead of the gcc-style __i386__ */
  87 #ifdef __SUNPRO_C
  88 # if !defined(__i386__) && defined(__i386)
  89 #  define __i386__
  90 # elif !defined(__amd64__) && defined(__amd64)
  91 #  define __amd64__
  92 # elif !defined(__sparc__) && defined(__sparc)
  93 #  define __sparc__
  94 # endif
  95 # if !defined(__volatile)
  96 #  define __volatile volatile
  97 # endif
  98 #endif
  99
 100 #if defined(_WIN32) && !defined(__WIN32__) && !defined(__CYGWIN__) && !defined(BUILD_FOR_SNAP)
 101 #  define __WIN32__
 102 #  define finite _finite
 103 #endif
 104
 105 #if defined(__WATCOMC__)
 106 #  define finite _finite
 107 #  pragma disable_message(201) /* Disable unreachable code warnings */
 108 #endif
 109
 110 #ifdef WGLAPI
 111 #       undef WGLAPI
 112 #endif
 113
 114 #if !defined(OPENSTEP) && (defined(__WIN32__) && !defined(__CYGWIN__)) && !defined(BUILD_FOR_SNAP)
 115 #  if !defined(__GNUC__) /* mingw environment */
 116 #    pragma warning( disable : 4068 ) /* unknown pragma */
 117 #    pragma warning( disable : 4710 ) /* function 'foo' not inlined */
 118 #    pragma warning( disable : 4711 ) /* function 'foo' selected for automatic inline expansion */
 119 #    pragma warning( disable : 4127 ) /* conditional expression is constant */
 120 #    if defined(MESA_MINWARN)
 121 #      pragma warning( disable : 4244 ) /* '=' : conversion from 'const double ' to 'float ', possible loss of data */
 122 #      pragma warning( disable : 4018 ) /* '<' : signed/unsigned mismatch */
 123 #      pragma warning( disable : 4305 ) /* '=' : truncation from 'const double ' to 'float ' */
 124 #      pragma warning( disable : 4550 ) /* 'function' undefined; assuming extern returning int */
 125 #      pragma warning( disable : 4761 ) /* integral size mismatch in argument; conversion supplied */
 126 #    endif
 127 #  endif
 128 #  if (defined(_MSC_VER) || defined(__MINGW32__)) && defined(BUILD_GL32) /* tag specify we're building mesa as a DLL */
 129 #    define WGLAPI __declspec(dllexport)
 130 #  elif (defined(_MSC_VER) || defined(__MINGW32__)) && defined(_DLL) /* tag specifying we're building for DLL runtime support */
 131 #    define WGLAPI __declspec(dllimport)
 132 #  else /* for use with static link lib build of Win32 edition only */
 133 #    define WGLAPI __declspec(dllimport)
 134 #  endif /* _STATIC_MESA support */
 135 #endif /* WIN32 / CYGWIN bracket */
 136
 137
 138 /*
 139  * Either define MESA_BIG_ENDIAN or MESA_LITTLE_ENDIAN.
 140  * Do not use them unless absolutely necessary!
 141  * Try to use a runtime test instead.
 142  * For now, only used by some DRI hardware drivers for color/texel packing.
 143  */
 144 #if defined(BYTE_ORDER) && defined(BIG_ENDIAN) && BYTE_ORDER == BIG_ENDIAN
 145 #if defined(__linux__)
 146 #include <byteswap.h>
 147 #define CPU_TO_LE32( x )        bswap_32( x )
 148 #else /*__linux__*/
 149 #include <sys/endian.h>
 150 #define CPU_TO_LE32( x )        bswap32( x )
 151 #endif /*__linux__*/
 152 #define MESA_BIG_ENDIAN 1
 153 #else
 154 #define CPU_TO_LE32( x )        ( x )
 155 #define MESA_LITTLE_ENDIAN 1
 156 #endif
 157 #define LE32_TO_CPU( x )        CPU_TO_LE32( x )
 158
 159
 160 #define GL_GLEXT_PROTOTYPES
 161 #include "GL/gl.h"
 162 #include "GL/glext.h"
 163
 164
 165 #ifndef GL_FIXED
 166 #define GL_FIXED 0x140C
 167 #endif
 168
 169
 170 #ifndef GL_OES_point_size_array
 171 #define GL_POINT_SIZE_ARRAY_OES                                 0x8B9C
 172 #define GL_POINT_SIZE_ARRAY_TYPE_OES                            0x898A
 173 #define GL_POINT_SIZE_ARRAY_STRIDE_OES                          0x898B
 174 #define GL_POINT_SIZE_ARRAY_POINTER_OES                         0x898C
 175 #define GL_POINT_SIZE_ARRAY_BUFFER_BINDING_OES                  0x8B9F
 176 #endif
 177
 178
 179 #ifndef GL_OES_draw_texture
 180 #define GL_TEXTURE_CROP_RECT_OES  0x8B9D
 181 #endif
 182
 183
 184 #if !defined(CAPI) && defined(WIN32) && !defined(BUILD_FOR_SNAP)
 185 #define CAPI _cdecl
 186 #endif
 187
 188
 189 /* This is a macro on IRIX */
 190 #ifdef _P
 191 #undef _P
 192 #endif
 193
 194
 195 /* Turn off macro checking systems used by other libraries */
 196 #ifdef CHECK
 197 #undef CHECK
 198 #endif
 199
 200
 201 /* Create a macro so that asm functions can be linked into compilers other
 202  * than GNU C
 203  */
 204 #ifndef _ASMAPI
 205 #if defined(WIN32) && !defined(BUILD_FOR_SNAP)/* was: !defined( __GNUC__ ) && !defined( VMS ) && !defined( __INTEL_COMPILER )*/
 206 #define _ASMAPI __cdecl
 207 #else
 208 #define _ASMAPI
 209 #endif
 210 #ifdef  PTR_DECL_IN_FRONT
 211 #define _ASMAPIP * _ASMAPI
 212 #else
 213 #define _ASMAPIP _ASMAPI *
 214 #endif
 215 #endif
 216
 217 #ifdef USE_X86_ASM
 218 #define _NORMAPI _ASMAPI
 219 #define _NORMAPIP _ASMAPIP
 220 #else
 221 #define _NORMAPI
 222 #define _NORMAPIP *
 223 #endif
 224
 225
 226 /* Function inlining */
 227 #if defined(__GNUC__)
 228 #  define INLINE __inline__
 229 #elif defined(__MSC__)
 230 #  define INLINE __inline
 231 #elif defined(_MSC_VER)
 232 #  define INLINE __inline
 233 #elif defined(__ICL)
 234 #  define INLINE __inline
 235 #elif defined(__INTEL_COMPILER)
 236 #  define INLINE inline
 237 #elif defined(__WATCOMC__) && (__WATCOMC__ >= 1100)
 238 #  define INLINE __inline
 239 #elif defined(__SUNPRO_C) && defined(__C99FEATURES__)
 240 #  define INLINE inline
 241 #  define __inline inline
 242 #  define __inline__ inline
 243 #elif (__STDC_VERSION__ >= 199901L) /* C99 */
 244 #  define INLINE inline
 245 #else
 246 #  define INLINE
 247 #endif
 248
 249
 250 /* If we build the library with gcc's -fvisibility=hidden flag, we'll
 251  * use the PUBLIC macro to mark functions that are to be exported.
 252  *
 253  * We also need to define a USED attribute, so the optimizer doesn't
 254  * inline a static function that we later use in an alias. - ajax
 255  */
 256 #if defined(__GNUC__) && (__GNUC__ * 100 + __GNUC_MINOR__) >= 303
 257 #  define PUBLIC __attribute__((visibility("default")))
 258 #  define USED __attribute__((used))
 259 #else
 260 #  define PUBLIC
 261 #  define USED
 262 #endif
 263
 264
 265 /* Some compilers don't like some of Mesa's const usage */
 266 #ifdef NO_CONST
 267 #  define CONST
 268 #else
 269 #  define CONST const
 270 #endif
 271
 272
 273 #if !defined(_WIN32_WCE)
 274 #if defined(BUILD_FOR_SNAP) && defined(CHECKED)
 275 #  define ASSERT(X)   _CHECK(X)
 276 #elif defined(DEBUG)
 277 #  define ASSERT(X)   assert(X)
 278 #else
 279 #  define ASSERT(X)
 280 #endif
 281 #endif
 282
 283
 284 #if (!defined(__GNUC__) || __GNUC__ < 3) && (!defined(__IBMC__) || __IBMC__ < 900)
 285 #  define __builtin_expect(x, y) x
 286 #endif
 287
 288 /* The __FUNCTION__ gcc variable is generally only used for debugging.
 289  * If we're not using gcc, define __FUNCTION__ as a cpp symbol here.
 290  * Don't define it if using a newer Windows compiler.
 291  */
 292 #ifndef __FUNCTION__
 293 # if defined(__VMS)
 294 #  define __FUNCTION__ "VMS$NL:"
 295 # elif ((!defined __GNUC__) || (__GNUC__ < 2)) && (!defined __xlC__) && \
 296       (!defined(_MSC_VER) || _MSC_VER < 1300)
 297 #  if (__STDC_VERSION__ >= 199901L) /* C99 */ || \
 298     (defined(__SUNPRO_C) && defined(__C99FEATURES__))
 299 #   define __FUNCTION__ __func__
 300 #  else
 301 #   define __FUNCTION__ "<unknown>"
 302 #  endif
 303 # endif
 304 #endif
 305
 306
 307 #include "config.h"
 308
 309 #endif /* GLHEADER_H */