glheader.h revision 49b2d2e90f524d8d404de4b618dcd6250a14667a
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 Mesa to be integrated into XFree86 and 9 * allows system-dependent hacks/workarounds to be 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 50#if defined(XFree86LOADER) && defined(IN_MODULE) 51#include "xf86_ansic.h" 52#else 53#include <assert.h> 54#include <ctype.h> 55/* If we can use Compaq's Fast Math Library on Alpha */ 56#if defined(__alpha__) && defined(CCPML) 57#include <cpml.h> 58#else 59#include <math.h> 60#endif 61#include <limits.h> 62#include <stdlib.h> 63#include <stdio.h> 64#include <string.h> 65#if defined(__linux__) && defined(__i386__) 66#include <fpu_control.h> 67#endif 68#endif 69#include <float.h> 70#include <stdarg.h> 71 72 73/* Get typedefs for uintptr_t and friends */ 74#if defined(__MINGW32__) || defined(__NetBSD__) 75# include <stdint.h> 76#elif defined(_WIN32) 77# include <BaseTsd.h> 78# if _MSC_VER == 1200 79 typedef UINT_PTR uintptr_t; 80# endif 81#else 82# include <inttypes.h> 83#endif 84 85#if defined(_WIN32) && !defined(__WIN32__) && !defined(__CYGWIN__) && !defined(BUILD_FOR_SNAP) 86# define __WIN32__ 87# define finite _finite 88#endif 89 90#if defined(__WATCOMC__) 91# define finite _finite 92# pragma disable_message(201) /* Disable unreachable code warnings */ 93#endif 94 95 96#if !defined(OPENSTEP) && (defined(__WIN32__) && !defined(__CYGWIN__)) && !defined(BUILD_FOR_SNAP) 97# if !defined(__GNUC__) /* mingw environment */ 98# pragma warning( disable : 4068 ) /* unknown pragma */ 99# pragma warning( disable : 4710 ) /* function 'foo' not inlined */ 100# pragma warning( disable : 4711 ) /* function 'foo' selected for automatic inline expansion */ 101# pragma warning( disable : 4127 ) /* conditional expression is constant */ 102# if defined(MESA_MINWARN) 103# pragma warning( disable : 4244 ) /* '=' : conversion from 'const double ' to 'float ', possible loss of data */ 104# pragma warning( disable : 4018 ) /* '<' : signed/unsigned mismatch */ 105# pragma warning( disable : 4305 ) /* '=' : truncation from 'const double ' to 'float ' */ 106# pragma warning( disable : 4550 ) /* 'function' undefined; assuming extern returning int */ 107# pragma warning( disable : 4761 ) /* integral size mismatch in argument; conversion supplied */ 108# endif 109# endif 110# if (defined(_MSC_VER) || defined(__MINGW32__)) && defined(BUILD_GL32) /* tag specify we're building mesa as a DLL */ 111# define WGLAPI __declspec(dllexport) 112# elif (defined(_MSC_VER) || defined(__MINGW32__)) && defined(_DLL) /* tag specifying we're building for DLL runtime support */ 113# define WGLAPI __declspec(dllimport) 114# else /* for use with static link lib build of Win32 edition only */ 115# define WGLAPI __declspec(dllimport) 116# endif /* _STATIC_MESA support */ 117#endif /* WIN32 / CYGWIN bracket */ 118 119 120/* 121 * Either define MESA_BIG_ENDIAN or MESA_LITTLE_ENDIAN. 122 * Do not use them unless absolutely necessary! 123 * Try to use a runtime test instead. 124 * For now, only used by some DRI hardware drivers for color/texel packing. 125 */ 126#if defined(BYTE_ORDER) && defined(BIG_ENDIAN) && BYTE_ORDER == BIG_ENDIAN 127#if defined(__linux__) 128#include <byteswap.h> 129#define CPU_TO_LE32( x ) bswap_32( x ) 130#else /*__linux__*/ 131#define CPU_TO_LE32( x ) ( x ) /* fix me for non-Linux big-endian! */ 132#endif /*__linux__*/ 133#define MESA_BIG_ENDIAN 1 134#else 135#define CPU_TO_LE32( x ) ( x ) 136#define MESA_LITTLE_ENDIAN 1 137#endif 138#define LE32_TO_CPU( x ) CPU_TO_LE32( x ) 139 140 141#define GL_GLEXT_PROTOTYPES 142#include "GL/gl.h" 143#include "GL/glext.h" 144 145 146#if !defined(CAPI) && defined(WIN32) && !defined(BUILD_FOR_SNAP) 147#define CAPI _cdecl 148#endif 149 150 151/* This is a macro on IRIX */ 152#ifdef _P 153#undef _P 154#endif 155 156 157/* Turn off macro checking systems used by other libraries */ 158#ifdef CHECK 159#undef CHECK 160#endif 161 162 163/* Create a macro so that asm functions can be linked into compilers other 164 * than GNU C 165 */ 166#ifndef _ASMAPI 167#if defined(WIN32) && !defined(BUILD_FOR_SNAP)/* was: !defined( __GNUC__ ) && !defined( VMS ) && !defined( __INTEL_COMPILER )*/ 168#define _ASMAPI __cdecl 169#else 170#define _ASMAPI 171#endif 172#ifdef PTR_DECL_IN_FRONT 173#define _ASMAPIP * _ASMAPI 174#else 175#define _ASMAPIP _ASMAPI * 176#endif 177#endif 178 179#ifdef USE_X86_ASM 180#define _NORMAPI _ASMAPI 181#define _NORMAPIP _ASMAPIP 182#else 183#define _NORMAPI 184#define _NORMAPIP * 185#endif 186 187 188/* Function inlining */ 189#if defined(__GNUC__) 190# define INLINE __inline__ 191#elif defined(__MSC__) 192# define INLINE __inline 193#elif defined(_MSC_VER) 194# define INLINE __inline 195#elif defined(__ICL) 196# define INLINE __inline 197#elif defined(__INTEL_COMPILER) 198# define INLINE inline 199#elif defined(__WATCOMC__) && (__WATCOMC__ >= 1100) 200# define INLINE __inline 201#else 202# define INLINE 203#endif 204 205 206/* If we build the library with gcc's -fvisibility=hidden flag, we'll 207 * use the PUBLIC macro to mark functions that are to be exported. 208 * 209 * We also need to define a USED attribute, so the optimizer doesn't 210 * inline a static function that we later use in an alias. - ajax 211 */ 212#if defined(__GNUC__) && (__GNUC__ * 100 + __GNUC_MINOR__) >= 303 213# define PUBLIC __attribute__((visibility("default"))) 214# define USED __attribute__((used)) 215#else 216# define PUBLIC 217# define USED 218#endif 219 220 221/* Some compilers don't like some of Mesa's const usage */ 222#ifdef NO_CONST 223# define CONST 224#else 225# define CONST const 226#endif 227 228 229#if defined(BUILD_FOR_SNAP) && defined(CHECKED) 230# define ASSERT(X) _CHECK(X) 231#elif defined(DEBUG) 232# define ASSERT(X) assert(X) 233#else 234# define ASSERT(X) 235#endif 236 237 238#if !defined __GNUC__ || __GNUC__ < 3 239# define __builtin_expect(x, y) x 240#endif 241 242/* The __FUNCTION__ gcc variable is generally only used for debugging. 243 * If we're not using gcc, define __FUNCTION__ as a cpp symbol here. 244 * Don't define it if using a newer Windows compiler. 245 */ 246#if defined(__VMS) 247#define __FUNCTION__ "VMS$NL:" 248#elif !(defined(__GNUC__) && __GNUC__ >= 2) && !(defined(_MSC_VER) && _MSC_VER >= 1300) 249#define __FUNCTION__ "unknown" 250#endif 251 252 253#include "config.h" 254 255#endif /* GLHEADER_H */ 256