MythTV: STTypes.h Source File

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00010 //
00011 // Last changed  : $Date$
00012 // File revision : $Revision$
00013 //
00014 // $Id$
00015 //
00017 //
00018 // License :
00019 //
00020 //  SoundTouch audio processing library
00021 //  Copyright (c) Olli Parviainen
00022 //
00023 //  This library is free software; you can redistribute it and/or
00024 //  modify it under the terms of the GNU Lesser General Public
00025 //  License as published by the Free Software Foundation; either
00026 //  version 2.1 of the License, or (at your option) any later version.
00027 //
00028 //  This library is distributed in the hope that it will be useful,
00029 //  but WITHOUT ANY WARRANTY; without even the implied warranty of
00030 //  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00031 //  Lesser General Public License for more details.
00032 //
00033 //  You should have received a copy of the GNU Lesser General Public
00034 //  License along with this library; if not, write to the Free Software
00035 //  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
00036 //
00038 
00039 #ifndef STTypes_H
00040 #define STTypes_H
00041 
00042 typedef unsigned int    uint;
00043 typedef unsigned long   ulong;
00044 
00045 #ifndef _WINDEF_H
00046     // if these aren't defined already by Windows headers, define now
00047 
00048     typedef int BOOL;
00049 
00050 #ifndef FALSE
00051     #define FALSE   0
00052 #endif
00053 #ifndef TRUE
00054     #define TRUE    1
00055 #endif
00056 
00057 #endif  // _WINDEF_H
00058 
00059     #define MULTICHANNEL 8
00060 
00061 namespace soundtouch
00062 {
00065 //#undef INTEGER_SAMPLES
00066 //#undef FLOAT_SAMPLES
00067 
00068 #if !(INTEGER_SAMPLES || FLOAT_SAMPLES)
00069    
00084     //#define INTEGER_SAMPLES     1    //< 16bit integer samples
00085     #define FLOAT_SAMPLES       1    //< 32bit float samples
00086  
00087  #endif
00088 
00095     #define ALLOW_OPTIMIZATIONS     1
00096 
00097 
00098     // If defined, allows the SIMD-optimized routines to take minor shortcuts 
00099     // for improved performance. Undefine to require faithfully similar SIMD 
00100     // calculations as in normal C implementation.
00101     #define ALLOW_NONEXACT_SIMD_OPTIMIZATION    1
00102 
00103 
00104     #ifdef INTEGER_SAMPLES
00105         // 16bit integer sample type
00106         typedef short SAMPLETYPE;
00107         // data type for sample accumulation: Use 32bit integer to prevent overflows
00108         typedef long  LONG_SAMPLETYPE;
00109 
00110         #ifdef FLOAT_SAMPLES
00111             // check that only one sample type is defined
00112             #error "conflicting sample types defined"
00113         #endif // FLOAT_SAMPLES
00114 
00115         #ifdef ALLOW_OPTIMIZATIONS
00116             #if _WIN32 || __MMX__ || MMX
00117                 // Allow MMX optimizations
00118                 #define ALLOW_MMX   1
00119             #endif
00120         #endif
00121 
00122     #else
00123 
00124         // floating point samples
00125         typedef float  SAMPLETYPE;
00126         // data type for sample accumulation: Use double to utilize full precision.
00127         typedef double LONG_SAMPLETYPE;
00128 
00129         #ifdef ALLOW_OPTIMIZATIONS
00130             // Allow 3DNow! and SSE optimizations
00131             #if WIN32
00132                 #define ALLOW_3DNOW     1
00133             #endif
00134         #endif
00135 
00136     #endif  // INTEGER_SAMPLES
00137 };
00138 
00139 #endif