env.c

著名的 helix realplayer 基于手机 symbian 系统的 播放器全套源代码

/* ***** BEGIN LICENSE BLOCK ***** 
 * Version: RCSL 1.0/RPSL 1.0 
 *  
 * Portions Copyright (c) 1995-2002 RealNetworks, Inc. All Rights Reserved. 
 *      
 * The contents of this file, and the files included with this file, are 
 * subject to the current version of the RealNetworks Public Source License 
 * Version 1.0 (the "RPSL") available at 
 * http://www.helixcommunity.org/content/rpsl unless you have licensed 
 * the file under the RealNetworks Community Source License Version 1.0 
 * (the "RCSL") available at http://www.helixcommunity.org/content/rcsl, 
 * in which case the RCSL will apply. You may also obtain the license terms 
 * directly from RealNetworks.  You may not use this file except in 
 * compliance with the RPSL or, if you have a valid RCSL with RealNetworks 
 * applicable to this file, the RCSL.  Please see the applicable RPSL or 
 * RCSL for the rights, obligations and limitations governing use of the 
 * contents of the file.  
 *  
 * This file is part of the Helix DNA Technology. RealNetworks is the 
 * developer of the Original Code and owns the copyrights in the portions 
 * it created. 
 *  
 * This file, and the files included with this file, is distributed and made 
 * available on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER 
 * EXPRESS OR IMPLIED, AND REALNETWORKS HEREBY DISCLAIMS ALL SUCH WARRANTIES, 
 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, FITNESS 
 * FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. 
 * 
 * Technology Compatibility Kit Test Suite(s) Location: 
 *    http://www.helixcommunity.org/content/tck 
 * 
 * Contributor(s): 
 *  
 * ***** END LICENSE BLOCK ***** */ 

#define  ENV_MAIN   /* declare CPU-related variables here */
#include "env.h"    /* standard libraries & #defines */
#include "mmx_util.h"

#ifdef _MACINTOSH
#ifndef _MAC_MACHO
#include <gestalt.h>
#endif
#endif

/*
 * Check if current CPU supports Intel MMX/SSE instruction sets.
 * Use:
 *  int CheckCPUType (void);
 * Returns:
 *  !0 - MMX instruction set is supported
 *  0 - non-MMX or non-IA CPU.
 */ 
int CheckCPUType (void) 
{
#if defined(_M_IX86)  && !defined(WINCE_EMULATOR)
   _x86_MMX_Available = (checkMmxAvailablity()&CPU_HAS_MMX)?1:0;
   return _x86_MMX_Available;
#elif defined _MACINTOSH
	// Check for presence of AltiVec on Macintosh
	OSErr	err;
	long	processorAttributes;

	err = Gestalt(gestaltPowerPCProcessorFeatures, &processorAttributes);
	if (err == noErr)
		_AltiVec_Available = (1 << gestaltPowerPCHasVectorInstructions) & processorAttributes;
   return _AltiVec_Available;
#else
   return 0;
#endif
}

/* env.c -- end of file */