OGRE: OgrePlatformInformation.h Source File - OGRE Documentation

# OgrePlatformInformation.h

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    00001 /*
    00002 -----------------------------------------------------------------------------
    00003 This source file is part of OGRE
    00004     (Object-oriented Graphics Rendering Engine)
    00005 For the latest info, see http://www.ogre3d.org/
    00006
    00007 Copyright (c) 2000-2006 Torus Knot Software Ltd
    00008 Also see acknowledgements in Readme.html
    00009
    00010 This program is free software; you can redistribute it and/or modify it under
    00011 the terms of the GNU Lesser General Public License as published by the Free Software
    00012 Foundation; either version 2 of the License, or (at your option) any later
    00013 version.
    00014
    00015 This program is distributed in the hope that it will be useful, but WITHOUT
    00016 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
    00017 FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.
    00018
    00019 You should have received a copy of the GNU Lesser General Public License along with
    00020 this program; if not, write to the Free Software Foundation, Inc., 59 Temple
    00021 Place - Suite 330, Boston, MA 02111-1307, USA, or go to
    00022 http://www.gnu.org/copyleft/lesser.txt.
    00023
    00024 You may alternatively use this source under the terms of a specific version of
    00025 the OGRE Unrestricted License provided you have obtained such a license from
    00026 Torus Knot Software Ltd.
    00027 -----------------------------------------------------------------------------
    00028 */
    00029 #ifndef __PlatformInformation_H__
    00030 #define __PlatformInformation_H__
    00031
    00032 #include "OgrePrerequisites.h"
    00033
    00034 namespace Ogre {
    00035 //
    00036 // TODO: Puts following macros into OgrePlatform.h?
    00037 //
    00038
    00039 /* Initial CPU stuff to set.
    00040 */
    00041 #define OGRE_CPU_UNKNOWN    0
    00042 #define OGRE_CPU_X86        1
    00043 #define OGRE_CPU_PPC        2
    00044
    00045 /* Find CPU type
    00046 */
    00047 #if (defined(_MSC_VER) && (defined(_M_IX86) || defined(_M_X64))) || \
    00048     (defined(__GNUC__) && (defined(__i386__) || defined(__x86_64__)))
    00049 #   define OGRE_CPU OGRE_CPU_X86
    00050
    00051 #elif OGRE_PLATFORM == OGRE_PLATFORM_APPLE && defined(__BIG_ENDIAN__)
    00052 #   define OGRE_CPU OGRE_CPU_PPC
    00053 #elif OGRE_PLATFORM == OGRE_PLATFORM_APPLE
    00054 #   define OGRE_CPU OGRE_CPU_X86
    00055
    00056 #else
    00057 #   define OGRE_CPU OGRE_CPU_UNKNOWN
    00058 #endif
    00059
    00060 /* Find how to declare aligned variable.
    00061 */
    00062 #if OGRE_COMPILER == OGRE_COMPILER_MSVC
    00063 #   define OGRE_ALIGNED_DECL(type, var, alignment)  __declspec(align(alignment)) type var
    00064
    00065 #elif OGRE_COMPILER == OGRE_COMPILER_GNUC
    00066 #   define OGRE_ALIGNED_DECL(type, var, alignment)  type var __attribute__((__aligned__(alignment)))
    00067
    00068 #else
    00069 #   define OGRE_ALIGNED_DECL(type, var, alignment)  type var
    00070 #endif
    00071
    00074 #if OGRE_CPU == OGRE_CPU_X86
    00075 #   define OGRE_SIMD_ALIGNMENT  16
    00076
    00077 #else
    00078 #   define OGRE_SIMD_ALIGNMENT  16
    00079 #endif
    00080
    00081 /* Declare variable aligned to SIMD alignment.
    00082 */
    00083 #define OGRE_SIMD_ALIGNED_DECL(type, var)   OGRE_ALIGNED_DECL(type, var, OGRE_SIMD_ALIGNMENT)
    00084
    00085 /* Define whether or not Ogre compiled with SSE supports.
    00086 */
    00087 #if OGRE_DOUBLE_PRECISION == 0 && OGRE_CPU == OGRE_CPU_X86 && OGRE_COMPILER == OGRE_COMPILER_MSVC
    00088 #   define __OGRE_HAVE_SSE  1
    00089 #elif OGRE_DOUBLE_PRECISION == 0 && OGRE_CPU == OGRE_CPU_X86 && OGRE_COMPILER == OGRE_COMPILER_GNUC
    00090 #   define __OGRE_HAVE_SSE  1
    00091 #endif
    00092
    00093
    00094 #ifndef __OGRE_HAVE_SSE
    00095 #   define __OGRE_HAVE_SSE  0
    00096 #endif
    00097
    00098
    00099
    00100
    00114     class _OgreExport PlatformInformation
    00115     {
    00116     public:
    00117
    00119         enum CpuFeatures
    00120         {
    00121 #if OGRE_CPU == OGRE_CPU_X86
    00122             CPU_FEATURE_SSE         = 1 << 0,
    00123             CPU_FEATURE_SSE2        = 1 << 1,
    00124             CPU_FEATURE_SSE3        = 1 << 2,
    00125             CPU_FEATURE_MMX         = 1 << 3,
    00126             CPU_FEATURE_MMXEXT      = 1 << 4,
    00127             CPU_FEATURE_3DNOW       = 1 << 5,
    00128             CPU_FEATURE_3DNOWEXT    = 1 << 6,
    00129             CPU_FEATURE_CMOV        = 1 << 7,
    00130             CPU_FEATURE_TSC         = 1 << 8,
    00131             CPU_FEATURE_FPU         = 1 << 9,
    00132             CPU_FEATURE_PRO         = 1 << 10,
    00133             CPU_FEATURE_HTT         = 1 << 11,
    00134 #endif
    00135
    00136             CPU_FEATURE_NONE        = 0
    00137         };
    00138
    00144         static const String& getCpuIdentifier(void);
    00145
    00151         static uint getCpuFeatures(void);
    00152
    00158         static bool hasCpuFeature(CpuFeatures feature);
    00159
    00160
    00162         static void log(Log* pLog);
    00163
    00164     };
    00165
    00166 }
    00167
    00168 #endif  // __PlatformInformation_H__

Copyright © 2008 Torus Knot Software Ltd
This work is licensed under a Creative Commons Attribution-ShareAlike 2.5 License.
Last modified Sun Jul 26 11:32:19 2009