env.c
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上传日期:2007-06-06
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- /* ***** 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 */