p_config.h revision cdc920a0 
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
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#endif
96
97#if defined(__PPC__)
98#define PIPE_ARCH_PPC
99#if defined(__PPC64__)
100#define PIPE_ARCH_PPC_64
101#endif
102#endif
103
104
105/*
106 * Endian detection.
107 */
108
109#if defined(PIPE_ARCH_X86) || defined(PIPE_ARCH_X86_64)
110#define PIPE_ARCH_LITTLE_ENDIAN
111#elif defined(PIPE_ARCH_PPC) || defined(PIPE_ARCH_PPC_64)
112#define PIPE_ARCH_BIG_ENDIAN
113#else
114#define PIPE_ARCH_UNKNOWN_ENDIAN
115#endif
116
117
118#if !defined(PIPE_OS_EMBEDDED)
119
120/*
121 * Auto-detect the operating system family.
122 *
123 * See subsystem below for a more fine-grained distinction.
124 */
125
126#if defined(__linux__)
127#define PIPE_OS_LINUX
128#define PIPE_OS_UNIX
129#endif
130
131#if defined(__FreeBSD__)
132#define PIPE_OS_FREEBSD
133#define PIPE_OS_BSD
134#define PIPE_OS_UNIX
135#endif
136
137#if defined(__OpenBSD__)
138#define PIPE_OS_OPENBSD
139#define PIPE_OS_BSD
140#define PIPE_OS_UNIX
141#endif
142
143#if defined(__NetBSD__)
144#define PIPE_OS_NETBSD
145#define PIPE_OS_BSD
146#define PIPE_OS_UNIX
147#endif
148
149#if defined(__sun)
150#define PIPE_OS_SOLARIS
151#define PIPE_OS_UNIX
152#endif
153
154#if defined(__APPLE__)
155#define PIPE_OS_APPLE
156#define PIPE_OS_UNIX
157#endif
158
159#if defined(_WIN32) || defined(WIN32)
160#define PIPE_OS_WINDOWS
161#endif
162
163#if defined(__HAIKU__)
164#define PIPE_OS_HAIKU
165#define PIPE_OS_UNIX
166#endif
167
168/*
169 * Try to auto-detect the subsystem.
170 *
171 * NOTE: There is no way to auto-detect most of these.
172 */
173
174#if defined(PIPE_OS_LINUX) || defined(PIPE_OS_BSD) || defined(PIPE_OS_SOLARIS)
175#define PIPE_SUBSYSTEM_DRI
176#endif /* PIPE_OS_LINUX || PIPE_OS_BSD || PIPE_OS_SOLARIS */
177
178#if defined(PIPE_OS_WINDOWS)
179#if defined(PIPE_SUBSYSTEM_WINDOWS_DISPLAY)
180/* Windows 2000/XP Display Driver */
181#elif defined(PIPE_SUBSYSTEM_WINDOWS_MINIPORT)
182/* Windows 2000/XP Miniport Driver */
183#elif defined(PIPE_SUBSYSTEM_WINDOWS_USER)
184/* Windows User-space Library */
185#elif defined(PIPE_SUBSYSTEM_WINDOWS_CE)
186/* Windows CE 5.0/6.0 */
187#else
188#ifdef _WIN32_WCE
189#define PIPE_SUBSYSTEM_WINDOWS_CE
190#else /* !_WIN32_WCE */
191#error No PIPE_SUBSYSTEM_WINDOWS_xxx subsystem defined.
192#endif /* !_WIN32_WCE */
193#endif
194#endif /* PIPE_OS_WINDOWS */
195
196#endif /* !PIPE_OS_EMBEDDED */
197
198
199#endif /* P_CONFIG_H_ */
200