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 standard integer types */
  68 #if defined(_MSC_VER)
  69
  70    typedef __int8             int8_t;
  71    typedef unsigned __int8    uint8_t;
  72    typedef __int16            int16_t;
  73    typedef unsigned __int16   uint16_t;
  74 #  ifndef __eglplatform_h_
  75      typedef __int32            int32_t;
  76 #  endif
  77    typedef unsigned __int32   uint32_t;
  78    typedef __int64            int64_t;
  79    typedef unsigned __int64   uint64_t;
  80
  81 #  if defined(_WIN64)
  82      typedef __int64            intptr_t;
  83      typedef unsigned __int64   uintptr_t;
  84 #  else
  85      typedef __int32            intptr_t;
  86      typedef unsigned __int32   uintptr_t;
  87 #  endif
  88
  89 #  define INT64_C(__val) __val##i64
  90 #  define UINT64_C(__val) __val##ui64
  91
  92 #else
  93 #  include <stdint.h>
  94 #endif
  95
  96
  97 /* Sun compilers define __i386 instead of the gcc-style __i386__ */
  98 #ifdef __SUNPRO_C
  99 # if !defined(__i386__) && defined(__i386)
 100 #  define __i386__
 101 # elif !defined(__amd64__) && defined(__amd64)
 102 #  define __amd64__
 103 # elif !defined(__sparc__) && defined(__sparc)
 104 #  define __sparc__
 105 # endif
 106 # if !defined(__volatile)
 107 #  define __volatile volatile
 108 # endif
 109 #endif
 110
 111 #if defined(_WIN32) && !defined(__WIN32__) && !defined(__CYGWIN__) && !defined(BUILD_FOR_SNAP)
 112 #  define __WIN32__
 113 #  define finite _finite
 114 #endif
 115
 116 #if defined(__WATCOMC__)
 117 #  define finite _finite
 118 #  pragma disable_message(201) /* Disable unreachable code warnings */
 119 #endif
 120
 121 #ifdef WGLAPI
 122 #       undef WGLAPI
 123 #endif
 124
 125 #if !defined(OPENSTEP) && (defined(__WIN32__) && !defined(__CYGWIN__)) && !defined(BUILD_FOR_SNAP)
 126 #  if !defined(__GNUC__) /* mingw environment */
 127 #    pragma warning( disable : 4068 ) /* unknown pragma */
 128 #    pragma warning( disable : 4710 ) /* function 'foo' not inlined */
 129 #    pragma warning( disable : 4711 ) /* function 'foo' selected for automatic inline expansion */
 130 #    pragma warning( disable : 4127 ) /* conditional expression is constant */
 131 #    if defined(MESA_MINWARN)
 132 #      pragma warning( disable : 4244 ) /* '=' : conversion from 'const double ' to 'float ', possible loss of data */
 133 #      pragma warning( disable : 4018 ) /* '<' : signed/unsigned mismatch */
 134 #      pragma warning( disable : 4305 ) /* '=' : truncation from 'const double ' to 'float ' */
 135 #      pragma warning( disable : 4550 ) /* 'function' undefined; assuming extern returning int */
 136 #      pragma warning( disable : 4761 ) /* integral size mismatch in argument; conversion supplied */
 137 #    endif
 138 #  endif
 139 #  if (defined(_MSC_VER) || defined(__MINGW32__)) && defined(BUILD_GL32) /* tag specify we're building mesa as a DLL */
 140 #    define WGLAPI __declspec(dllexport)
 141 #  elif (defined(_MSC_VER) || defined(__MINGW32__)) && defined(_DLL) /* tag specifying we're building for DLL runtime support */
 142 #    define WGLAPI __declspec(dllimport)
 143 #  else /* for use with static link lib build of Win32 edition only */
 144 #    define WGLAPI __declspec(dllimport)
 145 #  endif /* _STATIC_MESA support */
 146 #endif /* WIN32 / CYGWIN bracket */
 147
 148
 149 /*
 150  * Either define MESA_BIG_ENDIAN or MESA_LITTLE_ENDIAN.
 151  * Do not use them unless absolutely necessary!
 152  * Try to use a runtime test instead.
 153  * For now, only used by some DRI hardware drivers for color/texel packing.
 154  */
 155 #if defined(BYTE_ORDER) && defined(BIG_ENDIAN) && BYTE_ORDER == BIG_ENDIAN
 156 #if defined(__linux__)
 157 #include <byteswap.h>
 158 #define CPU_TO_LE32( x )        bswap_32( x )
 159 #else /*__linux__*/
 160 #define CPU_TO_LE32( x )        ( x )  /* fix me for non-Linux big-endian! */
 161 #endif /*__linux__*/
 162 #define MESA_BIG_ENDIAN 1
 163 #else
 164 #define CPU_TO_LE32( x )        ( x )
 165 #define MESA_LITTLE_ENDIAN 1
 166 #endif
 167 #define LE32_TO_CPU( x )        CPU_TO_LE32( x )
 168
 169
 170 #define GL_GLEXT_PROTOTYPES
 171 #include "GL/gl.h"
 172 #include "GL/glext.h"
 173
 174
 175 #ifndef GL_FIXED
 176 #define GL_FIXED 0x140C
 177 #endif
 178
 179
 180 #ifndef GL_OES_point_size_array
 181 #define GL_POINT_SIZE_ARRAY_OES                                 0x8B9C
 182 #define GL_POINT_SIZE_ARRAY_TYPE_OES                            0x898A
 183 #define GL_POINT_SIZE_ARRAY_STRIDE_OES                          0x898B
 184 #define GL_POINT_SIZE_ARRAY_POINTER_OES                         0x898C
 185 #define GL_POINT_SIZE_ARRAY_BUFFER_BINDING_OES                  0x8B9F
 186 #endif
 187
 188
 189 #ifndef GL_OES_draw_texture
 190 #define GL_TEXTURE_CROP_RECT_OES  0x8B9D
 191 #endif
 192
 193
 194 #if !defined(CAPI) && defined(WIN32) && !defined(BUILD_FOR_SNAP)
 195 #define CAPI _cdecl
 196 #endif
 197
 198
 199 /* This is a macro on IRIX */
 200 #ifdef _P
 201 #undef _P
 202 #endif
 203
 204
 205 /* Turn off macro checking systems used by other libraries */
 206 #ifdef CHECK
 207 #undef CHECK
 208 #endif
 209
 210
 211 /* Create a macro so that asm functions can be linked into compilers other
 212  * than GNU C
 213  */
 214 #ifndef _ASMAPI
 215 #if defined(WIN32) && !defined(BUILD_FOR_SNAP)/* was: !defined( __GNUC__ ) && !defined( VMS ) && !defined( __INTEL_COMPILER )*/
 216 #define _ASMAPI __cdecl
 217 #else
 218 #define _ASMAPI
 219 #endif
 220 #ifdef  PTR_DECL_IN_FRONT
 221 #define _ASMAPIP * _ASMAPI
 222 #else
 223 #define _ASMAPIP _ASMAPI *
 224 #endif
 225 #endif
 226
 227 #ifdef USE_X86_ASM
 228 #define _NORMAPI _ASMAPI
 229 #define _NORMAPIP _ASMAPIP
 230 #else
 231 #define _NORMAPI
 232 #define _NORMAPIP *
 233 #endif
 234
 235
 236 /* Function inlining */
 237 #if defined(__GNUC__)
 238 #  define INLINE __inline__
 239 #elif defined(__MSC__)
 240 #  define INLINE __inline
 241 #elif defined(_MSC_VER)
 242 #  define INLINE __inline
 243 #elif defined(__ICL)
 244 #  define INLINE __inline
 245 #elif defined(__INTEL_COMPILER)
 246 #  define INLINE inline
 247 #elif defined(__WATCOMC__) && (__WATCOMC__ >= 1100)
 248 #  define INLINE __inline
 249 #elif defined(__SUNPRO_C) && defined(__C99FEATURES__)
 250 #  define INLINE inline
 251 #  define __inline inline
 252 #  define __inline__ inline
 253 #elif (__STDC_VERSION__ >= 199901L) /* C99 */
 254 #  define INLINE inline
 255 #else
 256 #  define INLINE
 257 #endif
 258
 259
 260 /* If we build the library with gcc's -fvisibility=hidden flag, we'll
 261  * use the PUBLIC macro to mark functions that are to be exported.
 262  *
 263  * We also need to define a USED attribute, so the optimizer doesn't
 264  * inline a static function that we later use in an alias. - ajax
 265  */
 266 #if defined(__GNUC__) && (__GNUC__ * 100 + __GNUC_MINOR__) >= 303
 267 #  define PUBLIC __attribute__((visibility("default")))
 268 #  define USED __attribute__((used))
 269 #else
 270 #  define PUBLIC
 271 #  define USED
 272 #endif
 273
 274
 275 /* Some compilers don't like some of Mesa's const usage */
 276 #ifdef NO_CONST
 277 #  define CONST
 278 #else
 279 #  define CONST const
 280 #endif
 281
 282
 283 #if !defined(_WIN32_WCE)
 284 #if defined(BUILD_FOR_SNAP) && defined(CHECKED)
 285 #  define ASSERT(X)   _CHECK(X)
 286 #elif defined(DEBUG)
 287 #  define ASSERT(X)   assert(X)
 288 #else
 289 #  define ASSERT(X)
 290 #endif
 291 #endif
 292
 293
 294 #if (!defined(__GNUC__) || __GNUC__ < 3) && (!defined(__IBMC__) || __IBMC__ < 900)
 295 #  define __builtin_expect(x, y) x
 296 #endif
 297
 298 /* The __FUNCTION__ gcc variable is generally only used for debugging.
 299  * If we're not using gcc, define __FUNCTION__ as a cpp symbol here.
 300  * Don't define it if using a newer Windows compiler.
 301  */
 302 #ifndef __FUNCTION__
 303 # if defined(__VMS)
 304 #  define __FUNCTION__ "VMS$NL:"
 305 # elif ((!defined __GNUC__) || (__GNUC__ < 2)) && (!defined __xlC__) && \
 306       (!defined(_MSC_VER) || _MSC_VER < 1300)
 307 #  if (__STDC_VERSION__ >= 199901L) /* C99 */ || \
 308     (defined(__SUNPRO_C) && defined(__C99FEATURES__))
 309 #   define __FUNCTION__ __func__
 310 #  else
 311 #   define __FUNCTION__ "<unknown>"
 312 #  endif
 313 # endif
 314 #endif
 315
 316
 317 #include "config.h"
 318
 319 #endif /* GLHEADER_H */