src/gallium/include/pipe/p_config.h

   1 /**************************************************************************
   2  *
   3  * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas.
   4  * All Rights Reserved.
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a
   7  * copy of this software and associated documentation files (the
   8  * "Software"), to deal in the Software without restriction, including
   9  * without limitation the rights to use, copy, modify, merge, publish,
  10  * distribute, sub license, and/or sell copies of the Software, and to
  11  * permit persons to whom the Software is furnished to do so, subject to
  12  * the following conditions:
  13  *
  14  * The above copyright notice and this permission notice (including the
  15  * next paragraph) shall be included in all copies or substantial portions
  16  * of the Software.
  17  *
  18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  19  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  20  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
  21  * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
  22  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
  23  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  24  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  25  *
  26  **************************************************************************/
  27
  28 /**
  29  * @file
  30  * Gallium configuration defines.
  31  *
  32  * This header file sets several defines based on the compiler, processor
  33  * architecture, and operating system being used. These defines should be used
  34  * throughout the code to facilitate porting to new platforms. It is likely that
  35  * this file is auto-generated by an autoconf-like tool at some point, as some
  36  * things cannot be determined by pre-defined environment alone.
  37  *
  38  * See also:
  39  * - http://gcc.gnu.org/onlinedocs/cpp/Common-Predefined-Macros.html
  40  * - echo | gcc -dM -E - | sort
  41  * - http://msdn.microsoft.com/en-us/library/b0084kay.aspx
  42  *
  43  * @author José Fonseca <jrfonseca@tungstengraphics.com>
  44  */
  45
  46 #ifndef P_CONFIG_H_
  47 #define P_CONFIG_H_
  48
  49 #include <limits.h>
  50 /*
  51  * Compiler
  52  */
  53
  54 #if defined(__GNUC__)
  55 #define PIPE_CC_GCC
  56 #define PIPE_CC_GCC_VERSION (__GNUC__ * 100 + __GNUC_MINOR__)
  57 #endif
  58
  59 /*
  60  * Meaning of _MSC_VER value:
  61  * - 1400: Visual C++ 2005
  62  * - 1310: Visual C++ .NET 2003
  63  * - 1300: Visual C++ .NET 2002
  64  *
  65  * __MSC__ seems to be an old macro -- it is not pre-defined on recent MSVC
  66  * versions.
  67  */
  68 #if defined(_MSC_VER) || defined(__MSC__)
  69 #define PIPE_CC_MSVC
  70 #endif
  71
  72 #if defined(__ICL)
  73 #define PIPE_CC_ICL
  74 #endif
  75
  76
  77 /*
  78  * Processor architecture
  79  */
  80
  81 #if defined(__i386__) /* gcc */ || defined(_M_IX86) /* msvc */ || defined(_X86_) || defined(__386__) || defined(i386) || defined(__i386) /* Sun cc */
  82 #define PIPE_ARCH_X86
  83 #endif
  84
  85 #if defined(__x86_64__) /* gcc */ || defined(_M_X64) /* msvc */ || defined(_M_AMD64) /* msvc */ || defined(__x86_64) /* Sun cc */
  86 #define PIPE_ARCH_X86_64
  87 #endif
  88
  89 #if defined(PIPE_ARCH_X86) || defined(PIPE_ARCH_X86_64)
  90 #if defined(PIPE_CC_GCC) && !defined(__SSE2__)
  91 /* #warning SSE2 support requires -msse -msse2 compiler options */
  92 #else
  93 #define PIPE_ARCH_SSE
  94 #endif
  95 #if defined(PIPE_CC_GCC) && !defined(__SSSE3__)
  96 /* #warning SSE3 support requires -msse3 compiler options */
  97 #else
  98 #define PIPE_ARCH_SSSE3
  99 #endif
 100 #endif
 101
 102 #if defined(__PPC__)
 103 #define PIPE_ARCH_PPC
 104 #if defined(__PPC64__)
 105 #define PIPE_ARCH_PPC_64
 106 #endif
 107 #endif
 108
 109
 110 /*
 111  * Endian detection.
 112  */
 113
 114 #ifdef __GLIBC__
 115 #include <endian.h>
 116
 117 #if __BYTE_ORDER == __LITTLE_ENDIAN
 118 # define PIPE_ARCH_LITTLE_ENDIAN
 119 #elif __BYTE_ORDER == __BIG_ENDIAN
 120 # define PIPE_ARCH_BIG_ENDIAN
 121 #endif
 122
 123 #else
 124
 125 #if defined(PIPE_ARCH_X86) || defined(PIPE_ARCH_X86_64)
 126 #define PIPE_ARCH_LITTLE_ENDIAN
 127 #elif defined(PIPE_ARCH_PPC) || defined(PIPE_ARCH_PPC_64)
 128 #define PIPE_ARCH_BIG_ENDIAN
 129 #endif
 130
 131 #endif
 132
 133 #if !defined(PIPE_ARCH_LITTLE_ENDIAN) && !defined(PIPE_ARCH_BIG_ENDIAN)
 134 #error Unknown Endianness
 135 #endif
 136
 137 /*
 138  * Auto-detect the operating system family.
 139  *
 140  * See subsystem below for a more fine-grained distinction.
 141  */
 142
 143 #if defined(__linux__)
 144 #define PIPE_OS_LINUX
 145 #define PIPE_OS_UNIX
 146 #endif
 147
 148 #if defined(__FreeBSD__)
 149 #define PIPE_OS_FREEBSD
 150 #define PIPE_OS_BSD
 151 #define PIPE_OS_UNIX
 152 #endif
 153
 154 #if defined(__OpenBSD__)
 155 #define PIPE_OS_OPENBSD
 156 #define PIPE_OS_BSD
 157 #define PIPE_OS_UNIX
 158 #endif
 159
 160 #if defined(__NetBSD__)
 161 #define PIPE_OS_NETBSD
 162 #define PIPE_OS_BSD
 163 #define PIPE_OS_UNIX
 164 #endif
 165
 166 #if defined(__GNU__)
 167 #define PIPE_OS_HURD
 168 #define PIPE_OS_UNIX
 169 #endif
 170
 171 #if defined(__sun)
 172 #define PIPE_OS_SOLARIS
 173 #define PIPE_OS_UNIX
 174 #endif
 175
 176 #if defined(__APPLE__)
 177 #define PIPE_OS_APPLE
 178 #define PIPE_OS_UNIX
 179 #endif
 180
 181 #if defined(_WIN32) || defined(WIN32)
 182 #define PIPE_OS_WINDOWS
 183 #endif
 184
 185 #if defined(__HAIKU__)
 186 #define PIPE_OS_HAIKU
 187 #define PIPE_OS_UNIX
 188 #endif
 189
 190 #if defined(__CYGWIN__)
 191 #define PIPE_OS_CYGWIN
 192 #define PIPE_OS_UNIX
 193 #endif
 194
 195 /*
 196  * Try to auto-detect the subsystem.
 197  *
 198  * NOTE: There is no way to auto-detect most of these.
 199  */
 200
 201 #if defined(PIPE_OS_LINUX) || defined(PIPE_OS_BSD) || defined(PIPE_OS_SOLARIS)
 202 #define PIPE_SUBSYSTEM_DRI
 203 #endif /* PIPE_OS_LINUX || PIPE_OS_BSD || PIPE_OS_SOLARIS */
 204
 205 #if defined(PIPE_OS_WINDOWS)
 206 #if defined(PIPE_SUBSYSTEM_WINDOWS_DISPLAY)
 207 /* Windows 2000/XP Display Driver */
 208 #elif defined(PIPE_SUBSYSTEM_WINDOWS_MINIPORT)
 209 /* Windows 2000/XP Miniport Driver */
 210 #elif defined(PIPE_SUBSYSTEM_WINDOWS_USER)
 211 /* Windows User-space Library */
 212 #elif defined(PIPE_SUBSYSTEM_WINDOWS_CE)
 213 /* Windows CE 5.0/6.0 */
 214 #else
 215 #ifdef _WIN32_WCE
 216 #define PIPE_SUBSYSTEM_WINDOWS_CE
 217 #else /* !_WIN32_WCE */
 218 #error No PIPE_SUBSYSTEM_WINDOWS_xxx subsystem defined.
 219 #endif /* !_WIN32_WCE */
 220 #endif
 221 #endif /* PIPE_OS_WINDOWS */
 222
 223
 224 #endif /* P_CONFIG_H_ */