env.h
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- /* ***** BEGIN LICENSE BLOCK *****
- * Source last modified: $Id: env.h,v 1.2.32.1 2004/07/09 01:59:56 hubbe Exp $
- *
- * Portions Copyright (c) 1995-2004 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 (the "RPSL") available at
- * http://www.helixcommunity.org/content/rpsl unless you have licensed
- * the file under the current version of the RealNetworks Community
- * Source License (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.
- *
- * Alternatively, the contents of this file may be used under the
- * terms of the GNU General Public License Version 2 or later (the
- * "GPL") in which case the provisions of the GPL are applicable
- * instead of those above. If you wish to allow use of your version of
- * this file only under the terms of the GPL, and not to allow others
- * to use your version of this file under the terms of either the RPSL
- * or RCSL, indicate your decision by deleting the provisions above
- * and replace them with the notice and other provisions required by
- * the GPL. If you do not delete the provisions above, a recipient may
- * use your version of this file under the terms of any one of the
- * RPSL, the RCSL or the GPL.
- *
- * 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 ***** */
- /* standard libraries: */
- #include <limits.h>
- #include <string.h>
- #include <math.h>
- /* some math. constants: */
- #ifndef M_PI
- #define M_PI 3.14159265358979323846
- #endif
- #ifndef M_SQRT2
- #define M_SQRT2 1.41421356237309504880
- #endif
- /* fast rounding to a nearest integer: */
- #ifdef _M_IX86
- static __inline int NEAREST_INT(double a)
- {
- int ia;
- __asm fld a
- __asm fistp ia
- return ia;
- }
- #else
- #define NEAREST_INT(a) ((int) (((a)<0)? ((a)-0.5): ((a)+0.5)))
- #endif
- /* byte packing: */
- #ifdef __linux__
- #include <endian.h>
- #endif
- #ifndef BYTE_ORDER
- #define LITTLE_ENDIAN 1234
- #define BIG_ENDIAN 4321
- /* make sure your system is being correctly identified here !!! */
- #if defined(ultrix) || defined(__alpha) || defined(__i386__) || defined(__i486__) || defined(_X86_) || defined (_M_IX86)
- #define BYTE_ORDER LITTLE_ENDIAN
- #else
- #define BYTE_ORDER BIG_ENDIAN
- #endif
- #endif
- /* check platform specific constants: */
- #if CHAR_BIT != 8 || (defined( _INTEGRAL_MAX_BIT) && _INTEGRAL_MAX_BITS < 32)
- || (defined(WORD_BIT) && WORD_BIT < 32)
- #error Error!!! This code is written for 32+ bit processors.
- #endif
- /* Intel MMX & SSE extensions: */
- #ifdef _M_IX86
- #ifndef ENV_MAIN
- #define ENV_EXTERN extern
- #else
- #define ENV_EXTERN /**/
- #endif
- ENV_EXTERN int _x86_MMX_Available;
- ENV_EXTERN int _x86_SSE_Available;
- #endif