workspace/ksplash/ksplashx/kcpuinfo.h

   1 /*
   2  * This file is part of the KDE libraries
   3  * Copyright (C) 2003 Fredrik Höglund <fredrik@kde.org>
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  *
   9  * 1. Redistributions of source code must retain the above copyright
  10  *    notice, this list of conditions and the following disclaimer.
  11  * 2. Redistributions in binary form must reproduce the above copyright
  12  *    notice, this list of conditions and the following disclaimer in the
  13  *    documentation and/or other materials provided with the distribution.
  14  *
  15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  16  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  17  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  18  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  19  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  20  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  21  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  22  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  23  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  24  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  25  */
  26
  27 #ifndef __KCPUINFO_H
  28 #define __KCPUINFO_H
  29
  30
  31 /**
  32  * This class provides a means for applications to obtain information at
  33  * runtime about processor support for certain architecture extensions,
  34  * such as MMX, SSE, 3DNow and AltiVec.
  35  */
  36 class KCPUInfo
  37 {
  38     public:
  39        /**
  40          * This enum contains the list of architecture extensions you
  41          * can query.
  42          */
  43         enum Extensions {
  44             IntelMMX        = 1 << 0,  //!< Intel's MMX instructions.
  45             IntelSSE        = 1 << 1,  //!< Intel's SSE instructions.
  46             IntelSSE2       = 1 << 2,  //!< Intel's SSE2 instructions.
  47             AMD3DNOW        = 1 << 3,  //!< AMD 3DNOW instructions
  48             AltiVec         = 1 << 4   //!< Motorola AltiVec instructions
  49         };
  50
  51         /**
  52          * Returns true if the processor supports @p extension,
  53          * and false otherwise.
  54          *
  55          * @param   extension the feature to query.
  56          * @return  If true, the processor supports @p extension.
  57          * @see     Extensions
  58          */
  59         static bool haveExtension( unsigned int extension )
  60         { return s_features & extension; }
  61
  62     private:
  63         static unsigned int s_features;
  64 };
  65
  66 #endif
  67