00001 #ifndef PA_UTIL_H 00002 #define PA_UTIL_H 00003 /* 00004 * $Id: pa_util.h 1229 2007-06-15 16:11:11Z rossb $ 00005 * Portable Audio I/O Library implementation utilities header 00006 * common implementation utilities and interfaces 00007 * 00008 * Based on the Open Source API proposed by Ross Bencina 00009 * Copyright (c) 1999-2002 Ross Bencina, Phil Burk 00010 * 00011 * Permission is hereby granted, free of charge, to any person obtaining 00012 * a copy of this software and associated documentation files 00013 * (the "Software"), to deal in the Software without restriction, 00014 * including without limitation the rights to use, copy, modify, merge, 00015 * publish, distribute, sublicense, and/or sell copies of the Software, 00016 * and to permit persons to whom the Software is furnished to do so, 00017 * subject to the following conditions: 00018 * 00019 * The above copyright notice and this permission notice shall be 00020 * included in all copies or substantial portions of the Software. 00021 * 00022 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 00023 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 00024 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. 00025 * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR 00026 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF 00027 * CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION 00028 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 00029 */ 00030 00031 /* 00032 * The text above constitutes the entire PortAudio license; however, 00033 * the PortAudio community also makes the following non-binding requests: 00034 * 00035 * Any person wishing to distribute modifications to the Software is 00036 * requested to send the modifications to the original developer so that 00037 * they can be incorporated into the canonical version. It is also 00038 * requested that these non-binding requests be included along with the 00039 * license above. 00040 */ 00041 00052 #include "portaudio.h" 00053 00054 #ifdef __cplusplus 00055 extern "C" 00056 { 00057 #endif /* __cplusplus */ 00058 00059 00060 struct PaUtilHostApiRepresentation; 00061 00062 00077 PaError PaUtil_GetHostApiRepresentation( struct PaUtilHostApiRepresentation **hostApi, 00078 PaHostApiTypeId type ); 00079 00080 00090 PaError PaUtil_DeviceIndexToHostApiDeviceIndex( 00091 PaDeviceIndex *hostApiDevice, PaDeviceIndex device, 00092 struct PaUtilHostApiRepresentation *hostApi ); 00093 00094 00111 void PaUtil_SetLastHostErrorInfo( PaHostApiTypeId hostApiType, long errorCode, 00112 const char *errorText ); 00113 00114 00115 00116 /* the following functions are implemented in a platform platform specific 00117 .c file 00118 */ 00119 00121 void *PaUtil_AllocateMemory( long size ); 00122 00123 00125 void PaUtil_FreeMemory( void *block ); 00126 00127 00134 int PaUtil_CountCurrentlyAllocatedBlocks( void ); 00135 00136 00142 void PaUtil_InitializeClock( void ); 00143 00144 00149 double PaUtil_GetTime( void ); 00150 00151 00152 /* void Pa_Sleep( long msec ); must also be implemented in per-platform .c file */ 00153 00154 00155 00156 #ifdef __cplusplus 00157 } 00158 #endif /* __cplusplus */ 00159 #endif /* PA_UTIL_H */