workbench/libs/mesa/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,
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  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(__arm__)
  86 #define PIPE_ARCH_ARM
  87 #endif
  88
  89 #if defined(__x86_64__) /* gcc */ || defined(_M_X64) /* msvc */ || defined(_M_AMD64) /* msvc */ || defined(__x86_64) /* Sun cc */
  90 #define PIPE_ARCH_X86_64
  91 #endif
  92
  93 #if defined(__mc68000) /* gcc */
  94 #define PIPE_ARCH_M68K
  95 #endif
  96
  97 #if defined(PIPE_ARCH_X86) || defined(PIPE_ARCH_X86_64)
  98 #if defined(PIPE_CC_GCC) && !defined(__SSE2__)
  99 /* #warning SSE2 support requires -msse -msse2 compiler options */
 100 #else
 101 #define PIPE_ARCH_SSE
 102 #endif
 103 #if defined(PIPE_CC_GCC) && !defined(__SSSE3__)
 104 /* #warning SSE3 support requires -msse3 compiler options */
 105 #else
 106 #define PIPE_ARCH_SSSE3
 107 #endif
 108 #endif
 109
 110 #if defined(__ppc__) || defined(__ppc64__) || defined(__PPC__) || defined(__powerpc__)
 111 #define PIPE_ARCH_PPC
 112 #if defined(__ppc64__) || defined(__PPC64__)
 113 #define PIPE_ARCH_PPC_64
 114 #endif
 115 #endif
 116
 117
 118 /*
 119  * Endian detection.
 120  */
 121
 122 #ifdef __GLIBC__
 123 #include <endian.h>
 124
 125 #if __BYTE_ORDER == __LITTLE_ENDIAN
 126 # define PIPE_ARCH_LITTLE_ENDIAN
 127 #elif __BYTE_ORDER == __BIG_ENDIAN
 128 # define PIPE_ARCH_BIG_ENDIAN
 129 #endif
 130
 131 #elif defined(__APPLE__)
 132 #include <machine/endian.h>
 133
 134 #if __DARWIN_BYTE_ORDER == __DARWIN_LITTLE_ENDIAN
 135 # define PIPE_ARCH_LITTLE_ENDIAN
 136 #elif __DARWIN_BYTE_ORDER == __DARWIN_BIG_ENDIAN
 137 # define PIPE_ARCH_BIG_ENDIAN
 138 #endif
 139
 140 #else
 141
 142 #if defined(PIPE_ARCH_X86) || defined(PIPE_ARCH_X86_64) || defined(PIPE_ARCH_ARM)
 143 #define PIPE_ARCH_LITTLE_ENDIAN
 144 #elif defined(PIPE_ARCH_PPC) || defined(PIPE_ARCH_PPC_64) || defined(PIPE_ARCH_M68K)
 145 #define PIPE_ARCH_BIG_ENDIAN
 146 #endif
 147
 148 #endif
 149
 150 #if !defined(PIPE_ARCH_LITTLE_ENDIAN) && !defined(PIPE_ARCH_BIG_ENDIAN)
 151 #error Unknown Endianness
 152 #endif
 153
 154 /*
 155  * Auto-detect the operating system family.
 156  *
 157  * See subsystem below for a more fine-grained distinction.
 158  */
 159
 160 /*
 161  * In some situations __AROS__ definition can coexist with anything of
 162  * the below (for example this happens on ARM port which is compiled using Linux
 163  * compiler at the moment). So if we have __AROS__ we don't evaluate anything else
 164  */
 165 #if defined(__AROS__)
 166 #define PIPE_OS_AROS
 167 #else
 168
 169 #if defined(__linux__)
 170 #define PIPE_OS_LINUX
 171 #define PIPE_OS_UNIX
 172 #endif
 173
 174 #if defined(__FreeBSD__)
 175 #define PIPE_OS_FREEBSD
 176 #define PIPE_OS_BSD
 177 #define PIPE_OS_UNIX
 178 #endif
 179
 180 #if defined(__OpenBSD__)
 181 #define PIPE_OS_OPENBSD
 182 #define PIPE_OS_BSD
 183 #define PIPE_OS_UNIX
 184 #endif
 185
 186 #if defined(__NetBSD__)
 187 #define PIPE_OS_NETBSD
 188 #define PIPE_OS_BSD
 189 #define PIPE_OS_UNIX
 190 #endif
 191
 192 #if defined(__GNU__)
 193 #define PIPE_OS_HURD
 194 #define PIPE_OS_UNIX
 195 #endif
 196
 197 #if defined(__sun)
 198 #define PIPE_OS_SOLARIS
 199 #define PIPE_OS_UNIX
 200 #endif
 201
 202 #if defined(__APPLE__)
 203 #define PIPE_OS_APPLE
 204 #define PIPE_OS_UNIX
 205 #endif
 206
 207 #if defined(_WIN32) || defined(WIN32)
 208 #define PIPE_OS_WINDOWS
 209 #endif
 210
 211 #if defined(__HAIKU__)
 212 #define PIPE_OS_HAIKU
 213 #define PIPE_OS_UNIX
 214 #endif
 215
 216 #if defined(__CYGWIN__)
 217 #define PIPE_OS_CYGWIN
 218 #define PIPE_OS_UNIX
 219 #endif
 220
 221 #endif
 222
 223 /*
 224  * Try to auto-detect the subsystem.
 225  *
 226  * NOTE: There is no way to auto-detect most of these.
 227  */
 228
 229 #if defined(PIPE_OS_LINUX) || defined(PIPE_OS_BSD) || defined(PIPE_OS_SOLARIS)
 230 #define PIPE_SUBSYSTEM_DRI
 231 #endif /* PIPE_OS_LINUX || PIPE_OS_BSD || PIPE_OS_SOLARIS */
 232
 233 #if defined(PIPE_OS_WINDOWS)
 234 #if defined(PIPE_SUBSYSTEM_WINDOWS_DISPLAY)
 235 /* Windows 2000/XP Display Driver */
 236 #elif defined(PIPE_SUBSYSTEM_WINDOWS_MINIPORT)
 237 /* Windows 2000/XP Miniport Driver */
 238 #elif defined(PIPE_SUBSYSTEM_WINDOWS_USER)
 239 /* Windows User-space Library */
 240 #elif defined(PIPE_SUBSYSTEM_WINDOWS_CE)
 241 /* Windows CE 5.0/6.0 */
 242 #else
 243 #ifdef _WIN32_WCE
 244 #define PIPE_SUBSYSTEM_WINDOWS_CE
 245 #else /* !_WIN32_WCE */
 246 #error No PIPE_SUBSYSTEM_WINDOWS_xxx subsystem defined.
 247 #endif /* !_WIN32_WCE */
 248 #endif
 249 #endif /* PIPE_OS_WINDOWS */
 250
 251
 252 #endif /* P_CONFIG_H_ */