CrystalSpace

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csqint.h

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00001 /*
00002     Copyright (C) 2005 by Eric Sunshine
00003   
00004     This library is free software; you can redistribute it and/or
00005     modify it under the terms of the GNU Library General Public
00006     License as published by the Free Software Foundation; either
00007     version 2 of the License, or (at your option) any later version.
00008   
00009     This library is distributed in the hope that it will be useful,
00010     but WITHOUT ANY WARRANTY; without even the implied warranty of
00011     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00012     Library General Public License for more details.
00013   
00014     You should have received a copy of the GNU Library General Public
00015     License along with this library; if not, write to the Free
00016     Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
00017 */
00018 
00019 #ifndef __CS_CSQINT_H__
00020 #define __CS_CSQINT_H__
00021 
00035 template<typename T>
00036 static inline long csQint(T n) { return (long)n; }
00037 
00042 template<typename T>
00043 static inline long csQround (T n)
00044 { return (long)(n + (n < 0 ? (T)-0.5 : (T)0.5)); }
00045 
00049 static inline long csQfixed8 (float n) { return (int)(n * 256.0f); }
00050 
00054 static inline long csQfixed16 (float n) { return (int)(n * 65536.0f); }
00055 
00059 static inline long csQfixed24 (float n) { return (int)(n * 16777216.0f); }
00060 
00063 // Backward compatibility. Use csQfixedn() instead.
00064 CS_DEPRECATED_METHOD_MSG("Use csQfixed8() instead")
00065 static inline long csQint8 (float n) { return csQfixed8 (n); }
00066 CS_DEPRECATED_METHOD_MSG("Use csQfixed16() instead")
00067 static inline long csQint16(float n) { return csQfixed16(n); }
00068 CS_DEPRECATED_METHOD_MSG("Use csQfixed24() instead")
00069 static inline long csQint24(float n) { return csQfixed24(n); }
00070 
00071 #endif // __CS_CSQINT_H__

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