p_config.h revision c6c44bf48124dd5b4661014a8d58482c5a54557f 
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#endif
57
58/*
59 * Meaning of _MSC_VER value:
60 * - 1400: Visual C++ 2005
61 * - 1310: Visual C++ .NET 2003
62 * - 1300: Visual C++ .NET 2002
63 *
64 * __MSC__ seems to be an old macro -- it is not pre-defined on recent MSVC
65 * versions.
66 */
67#if defined(_MSC_VER) || defined(__MSC__)
68#define PIPE_CC_MSVC
69#endif
70
71#if defined(__ICL)
72#define PIPE_CC_ICL
73#endif
74
75
76/*
77 * Processor architecture
78 */
79
80#if defined(__i386__) /* gcc */ || defined(_M_IX86) /* msvc */ || defined(_X86_) || defined(__386__) || defined(i386) || defined(__i386) /* Sun cc */
81#define PIPE_ARCH_X86
82#endif
83
84#if defined(__x86_64__) /* gcc */ || defined(_M_X64) /* msvc */ || defined(_M_AMD64) /* msvc */ || defined(__x86_64) /* Sun cc */
85#define PIPE_ARCH_X86_64
86#endif
87
88#if defined(PIPE_ARCH_X86) || defined(PIPE_ARCH_X86_64)
89#if defined(PIPE_CC_GCC) && !defined(__SSE2__)
90/* #warning SSE2 support requires -msse -msse2 compiler options */
91#else
92#define PIPE_ARCH_SSE
93#endif
94#endif
95
96#if defined(__PPC__)
97#define PIPE_ARCH_PPC
98#if defined(__PPC64__)
99#define PIPE_ARCH_PPC_64
100#endif
101#endif
102
103
104/*
105 * Endian detection.
106 */
107
108#if defined(PIPE_ARCH_X86) || defined(PIPE_ARCH_X86_64)
109#define PIPE_ARCH_LITTLE_ENDIAN
110#elif defined(PIPE_ARCH_PPC) || defined(PIPE_ARCH_PPC_64)
111#define PIPE_ARCH_BIG_ENDIAN
112#else
113#define PIPE_ARCH_UNKNOWN_ENDIAN
114#endif
115
116
117/*
118 * Operating system family.
119 *
120 * See subsystem below for a more fine-grained distinction.
121 */
122
123#if defined(__linux__)
124#define PIPE_OS_LINUX
125#endif
126
127#if defined(__FreeBSD__)
128#define PIPE_OS_BSD
129#endif
130
131#if defined(__sun)
132#define PIPE_OS_SOLARIS
133#endif
134
135#if defined(__APPLE__)
136#define PIPE_OS_APPLE
137#endif
138
139#if defined(_WIN32) || defined(WIN32)
140#define PIPE_OS_WINDOWS
141#endif
142
143#if defined(__HAIKU__)
144#define PIPE_OS_HAIKU
145#endif
146
147/*
148 * Subsystem.
149 *
150 * NOTE: There is no way to auto-detect most of these.
151 */
152
153#if defined(PIPE_OS_LINUX) || defined(PIPE_OS_BSD) || defined(PIPE_OS_SOLARIS)
154#define PIPE_SUBSYSTEM_DRI
155#endif /* PIPE_OS_LINUX || PIPE_OS_BSD || PIPE_OS_SOLARIS */
156
157#if defined(PIPE_OS_WINDOWS)
158#if defined(PIPE_SUBSYSTEM_WINDOWS_DISPLAY)
159/* Windows 2000/XP Display Driver */
160#elif defined(PIPE_SUBSYSTEM_WINDOWS_MINIPORT)
161/* Windows 2000/XP Miniport Driver */
162#elif defined(PIPE_SUBSYSTEM_WINDOWS_USER)
163/* Windows User-space Library */
164#elif defined(PIPE_SUBSYSTEM_WINDOWS_CE)
165/* Windows CE 5.0/6.0 */
166#else
167#ifdef _WIN32_WCE
168#define PIPE_SUBSYSTEM_WINDOWS_CE
169#else /* !_WIN32_WCE */
170#error No PIPE_SUBSYSTEM_WINDOWS_xxx subsystem defined.
171#endif /* !_WIN32_WCE */
172#endif
173#endif /* PIPE_OS_WINDOWS */
174
175
176#endif /* P_CONFIG_H_ */
177