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Diffstat (limited to 'pd/portaudio/pa_common/pa_front.c')
| -rw-r--r-- | pd/portaudio/pa_common/pa_front.c | 1981 |
1 files changed, 0 insertions, 1981 deletions
diff --git a/pd/portaudio/pa_common/pa_front.c b/pd/portaudio/pa_common/pa_front.c deleted file mode 100644 index 696df8b2..00000000 --- a/pd/portaudio/pa_common/pa_front.c +++ /dev/null @@ -1,1981 +0,0 @@ -/* - * $Id: pa_front.c,v 1.1.2.53 2006/03/20 18:11:09 aknudsen Exp $ - * Portable Audio I/O Library Multi-Host API front end - * Validate function parameters and manage multiple host APIs. - * - * Based on the Open Source API proposed by Ross Bencina - * Copyright (c) 1999-2002 Ross Bencina, Phil Burk - * - * Permission is hereby granted, free of charge, to any person obtaining - * a copy of this software and associated documentation files - * (the "Software"), to deal in the Software without restriction, - * including without limitation the rights to use, copy, modify, merge, - * publish, distribute, sublicense, and/or sell copies of the Software, - * and to permit persons to whom the Software is furnished to do so, - * subject to the following conditions: - * - * The above copyright notice and this permission notice shall be - * included in all copies or substantial portions of the Software. - * - * Any person wishing to distribute modifications to the Software is - * requested to send the modifications to the original developer so that - * they can be incorporated into the canonical version. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, - * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF - * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. - * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR - * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF - * CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION - * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - */ - -/* doxygen index page */ -/** @mainpage - -PortAudio is an open-source cross-platform ‘C’ library for audio input -and output. It is designed to simplify the porting of audio applications -between various platforms, and also to simplify the development of audio -software in general by hiding the complexities of device interfacing. - -See the PortAudio website for further information http://www.portaudio.com/ - -This documentation pertains to PortAudio V19, API version 2.0 which is -currently under development. API version 2.0 differs in a number of ways from -previous versions, please consult the enhancement proposals for further details: -http://www.portaudio.com/docs/proposals/index.html - -This documentation is under construction. Things you might be interested in -include: - -- The PortAudio API 2.0, as documented in portaudio.h - -- The <a href="todo.html">TODO List</a> - -Feel free to pick an item off TODO list and fix/implement it. You may want to -enquire about status on the PortAudio mailing list first. -*/ - - -/** @file - @brief Implements public PortAudio API, checks some errors, forwards to - host API implementations. - - Implements the functions defined in the PortAudio API, checks for - some parameter and state inconsistencies and forwards API requests to - specific Host API implementations (via the interface declared in - pa_hostapi.h), and Streams (via the interface declared in pa_stream.h). - - This file handles initialization and termination of Host API - implementations via initializers stored in the paHostApiInitializers - global variable. - - Some utility functions declared in pa_util.h are implemented in this file. - - All PortAudio API functions can be conditionally compiled with logging code. - To compile with logging, define the PA_LOG_API_CALLS precompiler symbol. - - @todo Consider adding host API specific error text in Pa_GetErrorText() for - paUnanticipatedHostError - - @todo Consider adding a new error code for when (inputParameters == NULL) - && (outputParameters == NULL) - - @todo review whether Pa_CloseStream() should call the interface's - CloseStream function if aborting the stream returns an error code. - - @todo Create new error codes if a NULL buffer pointer, or a - zero frame count is passed to Pa_ReadStream or Pa_WriteStream. -*/ - - -#include <stdio.h> -#include <stdarg.h> -#include <memory.h> -#include <string.h> -#include <assert.h> /* needed by PA_VALIDATE_ENDIANNESS */ - -#include "portaudio.h" -#include "pa_util.h" -#include "pa_endianness.h" -#include "pa_types.h" -#include "pa_hostapi.h" -#include "pa_stream.h" - -#include "pa_trace.h" - - -#define PA_VERSION_ 1899 -#define PA_VERSION_TEXT_ "PortAudio V19-devel" - - - -/* #define PA_LOG_API_CALLS */ - -/* - The basic format for log messages is described below. If you need to - add any log messages, please follow this format. - - Function entry (void function): - - "FunctionName called.\n" - - Function entry (non void function): - - "FunctionName called:\n" - "\tParam1Type param1: param1Value\n" - "\tParam2Type param2: param2Value\n" (etc...) - - - Function exit (no return value): - - "FunctionName returned.\n" - - Function exit (simple return value): - - "FunctionName returned:\n" - "\tReturnType: returnValue\n\n" - - If the return type is an error code, the error text is displayed in () - - If the return type is not an error code, but has taken a special value - because an error occurred, then the reason for the error is shown in [] - - If the return type is a struct ptr, the struct is dumped. - - See the code below for examples -*/ - - -int Pa_GetVersion( void ) -{ - return PA_VERSION_; -} - - -const char* Pa_GetVersionText( void ) -{ - return PA_VERSION_TEXT_; -} - - - -#define PA_LAST_HOST_ERROR_TEXT_LENGTH_ 1024 - -static char lastHostErrorText_[ PA_LAST_HOST_ERROR_TEXT_LENGTH_ + 1 ] = {0}; - -static PaHostErrorInfo lastHostErrorInfo_ = { (PaHostApiTypeId)-1, 0, lastHostErrorText_ }; - - -void PaUtil_SetLastHostErrorInfo( PaHostApiTypeId hostApiType, long errorCode, - const char *errorText ) -{ - lastHostErrorInfo_.hostApiType = hostApiType; - lastHostErrorInfo_.errorCode = errorCode; - - strncpy( lastHostErrorText_, errorText, PA_LAST_HOST_ERROR_TEXT_LENGTH_ ); -} - - -void PaUtil_DebugPrint( const char *format, ... ) -{ - va_list ap; - - va_start( ap, format ); - vfprintf( stderr, format, ap ); - va_end( ap ); - - fflush( stderr ); -} - - -static PaUtilHostApiRepresentation **hostApis_ = 0; -static int hostApisCount_ = 0; -static int initializationCount_ = 0; -static int deviceCount_ = 0; - -PaUtilStreamRepresentation *firstOpenStream_ = NULL; - - -#define PA_IS_INITIALISED_ (initializationCount_ != 0) - - -static int CountHostApiInitializers( void ) -{ - int result = 0; - - while( paHostApiInitializers[ result ] != 0 ) - ++result; - return result; -} - - -static void TerminateHostApis( void ) -{ - /* terminate in reverse order from initialization */ - - while( hostApisCount_ > 0 ) - { - --hostApisCount_; - hostApis_[hostApisCount_]->Terminate( hostApis_[hostApisCount_] ); - } - hostApisCount_ = 0; - deviceCount_ = 0; - - if( hostApis_ != 0 ) - PaUtil_FreeMemory( hostApis_ ); - hostApis_ = 0; -} - - -static PaError InitializeHostApis( void ) -{ - PaError result = paNoError; - int i, initializerCount, baseDeviceIndex; - - initializerCount = CountHostApiInitializers(); - - hostApis_ = (PaUtilHostApiRepresentation**)PaUtil_AllocateMemory( - sizeof(PaUtilHostApiRepresentation*) * initializerCount ); - if( !hostApis_ ) - { - result = paInsufficientMemory; - goto error; - } - - hostApisCount_ = 0; - deviceCount_ = 0; - baseDeviceIndex = 0; - - for( i=0; i< initializerCount; ++i ) - { - hostApis_[hostApisCount_] = NULL; - result = paHostApiInitializers[i]( &hostApis_[hostApisCount_], hostApisCount_ ); - if( result != paNoError ) - goto error; - - if( hostApis_[hostApisCount_] ) - { - PaUtilHostApiRepresentation* hostApi = hostApis_[hostApisCount_]; - assert( hostApi->info.defaultInputDevice < hostApi->info.deviceCount ); - assert( hostApi->info.defaultOutputDevice < hostApi->info.deviceCount ); - - hostApis_[hostApisCount_]->privatePaFrontInfo.baseDeviceIndex = baseDeviceIndex; - - if( hostApis_[hostApisCount_]->info.defaultInputDevice != paNoDevice ) - hostApis_[hostApisCount_]->info.defaultInputDevice += baseDeviceIndex; - - if( hostApis_[hostApisCount_]->info.defaultOutputDevice != paNoDevice ) - hostApis_[hostApisCount_]->info.defaultOutputDevice += baseDeviceIndex; - - baseDeviceIndex += hostApis_[hostApisCount_]->info.deviceCount; - deviceCount_ += hostApis_[hostApisCount_]->info.deviceCount; - - ++hostApisCount_; - } - } - - return result; - -error: - TerminateHostApis(); - return result; -} - - -/* - FindHostApi() finds the index of the host api to which - <device> belongs and returns it. if <hostSpecificDeviceIndex> is - non-null, the host specific device index is returned in it. - returns -1 if <device> is out of range. - -*/ -static int FindHostApi( PaDeviceIndex device, int *hostSpecificDeviceIndex ) -{ - int i=0; - - if( !PA_IS_INITIALISED_ ) - return -1; - - if( device < 0 ) - return -1; - - while( i < hostApisCount_ - && device >= hostApis_[i]->info.deviceCount ) - { - - device -= hostApis_[i]->info.deviceCount; - ++i; - } - - if( i >= hostApisCount_ ) - return -1; - - if( hostSpecificDeviceIndex ) - *hostSpecificDeviceIndex = device; - - return i; -} - - -static void AddOpenStream( PaStream* stream ) -{ - ((PaUtilStreamRepresentation*)stream)->nextOpenStream = firstOpenStream_; - firstOpenStream_ = (PaUtilStreamRepresentation*)stream; -} - - -static void RemoveOpenStream( PaStream* stream ) -{ - PaUtilStreamRepresentation *previous = NULL; - PaUtilStreamRepresentation *current = firstOpenStream_; - - while( current != NULL ) - { - if( ((PaStream*)current) == stream ) - { - if( previous == NULL ) - { - firstOpenStream_ = current->nextOpenStream; - } - else - { - previous->nextOpenStream = current->nextOpenStream; - } - return; - } - else - { - previous = current; - current = current->nextOpenStream; - } - } -} - - -static void CloseOpenStreams( void ) -{ - /* we call Pa_CloseStream() here to ensure that the same destruction - logic is used for automatically closed streams */ - - while( firstOpenStream_ != NULL ) - Pa_CloseStream( firstOpenStream_ ); -} - - -PaError Pa_Initialize( void ) -{ - PaError result; - -#ifdef PA_LOG_API_CALLS - PaUtil_DebugPrint( "Pa_Initialize called.\n" ); -#endif - - if( PA_IS_INITIALISED_ ) - { - ++initializationCount_; - result = paNoError; - } - else - { - PA_VALIDATE_TYPE_SIZES; - PA_VALIDATE_ENDIANNESS; - - PaUtil_InitializeClock(); - PaUtil_ResetTraceMessages(); - - result = InitializeHostApis(); - if( result == paNoError ) - ++initializationCount_; - } - -#ifdef PA_LOG_API_CALLS - PaUtil_DebugPrint( "Pa_Initialize returned:\n" ); - PaUtil_DebugPrint( "\tPaError: %d ( %s )\n\n", result, Pa_GetErrorText( result ) ); -#endif - - return result; -} - - -PaError Pa_Terminate( void ) -{ - PaError result; - -#ifdef PA_LOG_API_CALLS - PaUtil_DebugPrint("Pa_Terminate called.\n" ); -#endif - - if( PA_IS_INITIALISED_ ) - { - if( --initializationCount_ == 0 ) - { - CloseOpenStreams(); - - TerminateHostApis(); - - PaUtil_DumpTraceMessages(); - } - result = paNoError; - } - else - { - result= paNotInitialized; - } - -#ifdef PA_LOG_API_CALLS - PaUtil_DebugPrint("Pa_Terminate returned:\n" ); - PaUtil_DebugPrint("\tPaError: %d ( %s )\n\n", result, Pa_GetErrorText( result ) ); -#endif - - return result; -} - - -const PaHostErrorInfo* Pa_GetLastHostErrorInfo( void ) -{ - return &lastHostErrorInfo_; -} - - -const char *Pa_GetErrorText( PaError errorCode ) -{ - const char *result; - - switch( errorCode ) - { - case paNoError: result = "Success"; break; - case paNotInitialized: result = "PortAudio not initialized"; break; - /** @todo could catenate the last host error text to result in the case of paUnanticipatedHostError */ - case paUnanticipatedHostError: result = "Unanticipated host error"; break; - case paInvalidChannelCount: result = "Invalid number of channels"; break; - case paInvalidSampleRate: result = "Invalid sample rate"; break; - case paInvalidDevice: result = "Invalid device"; break; - case paInvalidFlag: result = "Invalid flag"; break; - case paSampleFormatNotSupported: result = "Sample format not supported"; break; - case paBadIODeviceCombination: result = "Illegal combination of I/O devices"; break; - case paInsufficientMemory: result = "Insufficient memory"; break; - case paBufferTooBig: result = "Buffer too big"; break; - case paBufferTooSmall: result = "Buffer too small"; break; - case paNullCallback: result = "No callback routine specified"; break; - case paBadStreamPtr: result = "Invalid stream pointer"; break; - case paTimedOut: result = "Wait timed out"; break; - case paInternalError: result = "Internal PortAudio error"; break; - case paDeviceUnavailable: result = "Device unavailable"; break; - case paIncompatibleHostApiSpecificStreamInfo: result = "Incompatible host API specific stream info"; break; - case paStreamIsStopped: result = "Stream is stopped"; break; - case paStreamIsNotStopped: result = "Stream is not stopped"; break; - case paInputOverflowed: result = "Input overflowed"; break; - case paOutputUnderflowed: result = "Output underflowed"; break; - case paHostApiNotFound: result = "Host API not found"; break; - case paInvalidHostApi: result = "Invalid host API"; break; - case paCanNotReadFromACallbackStream: result = "Can't read from a callback stream"; break; - case paCanNotWriteToACallbackStream: result = "Can't write to a callback stream"; break; - case paCanNotReadFromAnOutputOnlyStream: result = "Can't read from an output only stream"; break; - case paCanNotWriteToAnInputOnlyStream: result = "Can't write to an input only stream"; break; - default: result = "Illegal error number"; break; - } - return result; -} - - -PaHostApiIndex Pa_HostApiTypeIdToHostApiIndex( PaHostApiTypeId type ) -{ - PaHostApiIndex result; - int i; - -#ifdef PA_LOG_API_CALLS - PaUtil_DebugPrint("Pa_HostApiTypeIdToHostApiIndex called:\n" ); - PaUtil_DebugPrint("\tPaHostApiTypeId type: %d\n", type ); -#endif - - if( !PA_IS_INITIALISED_ ) - { - result = paNotInitialized; - } - else - { - result = paHostApiNotFound; - - for( i=0; i < hostApisCount_; ++i ) - { - if( hostApis_[i]->info.type == type ) - { - result = i; - break; - } - } - } - -#ifdef PA_LOG_API_CALLS - PaUtil_DebugPrint("Pa_HostApiTypeIdToHostApiIndex returned:\n" ); - if( result < 0 ) - PaUtil_DebugPrint("\tPaError: %d ( %s )\n\n", result, Pa_GetErrorText( result ) ); - else - PaUtil_DebugPrint("\tPaHostApiIndex: %d\n\n", result ); -#endif - - return result; -} - - -PaError PaUtil_GetHostApiRepresentation( struct PaUtilHostApiRepresentation **hostApi, - PaHostApiTypeId type ) -{ - PaError result; - int i; - - if( !PA_IS_INITIALISED_ ) - { - result = paNotInitialized; - } - else - { - result = paHostApiNotFound; - - for( i=0; i < hostApisCount_; ++i ) - { - if( hostApis_[i]->info.type == type ) - { - *hostApi = hostApis_[i]; - result = paNoError; - break; - } - } - } - - return result; -} - - -PaError PaUtil_DeviceIndexToHostApiDeviceIndex( - PaDeviceIndex *hostApiDevice, PaDeviceIndex device, struct PaUtilHostApiRepresentation *hostApi ) -{ - PaError result; - PaDeviceIndex x; - - x = device - hostApi->privatePaFrontInfo.baseDeviceIndex; - - if( x < 0 || x >= hostApi->info.deviceCount ) - { - result = paInvalidDevice; - } - else - { - *hostApiDevice = x; - result = paNoError; - } - - return result; -} - - -PaHostApiIndex Pa_GetHostApiCount( void ) -{ - int result; - -#ifdef PA_LOG_API_CALLS - PaUtil_DebugPrint("Pa_GetHostApiCount called.\n" ); -#endif - - if( !PA_IS_INITIALISED_ ) - { - result = paNotInitialized; - } - else - { - result = hostApisCount_; - } - -#ifdef PA_LOG_API_CALLS - PaUtil_DebugPrint("Pa_GetHostApiCount returned:\n" ); - if( result < 0 ) - PaUtil_DebugPrint("\tPaError: %d ( %s )\n\n", result, Pa_GetErrorText( result ) ); - else - PaUtil_DebugPrint("\tPaHostApiIndex %d\n\n", result ); -#endif - - return result; -} - - -PaHostApiIndex Pa_GetDefaultHostApi( void ) -{ - int result; - -#ifdef PA_LOG_API_CALLS - PaUtil_DebugPrint("Pa_GetDefaultHostApi called.\n" ); -#endif - - if( !PA_IS_INITIALISED_ ) - { - result = paNotInitialized; - } - else - { - result = paDefaultHostApiIndex; - - /* internal consistency check: make sure that the default host api - index is within range */ - - if( result < 0 || result >= hostApisCount_ ) - { - result = paInternalError; - } - } - -#ifdef PA_LOG_API_CALLS - PaUtil_DebugPrint("Pa_GetDefaultHostApi returned:\n" ); - if( result < 0 ) - PaUtil_DebugPrint("\tPaError: %d ( %s )\n\n", result, Pa_GetErrorText( result ) ); - else - PaUtil_DebugPrint("\tPaHostApiIndex %d\n\n", result ); -#endif - - return result; -} - - -const PaHostApiInfo* Pa_GetHostApiInfo( PaHostApiIndex hostApi ) -{ - PaHostApiInfo *info; - -#ifdef PA_LOG_API_CALLS - PaUtil_DebugPrint("Pa_GetHostApiInfo called:\n" ); - PaUtil_DebugPrint("\tPaHostApiIndex hostApi: %d\n", hostApi ); -#endif - - if( !PA_IS_INITIALISED_ ) - { - info = NULL; - -#ifdef PA_LOG_API_CALLS - PaUtil_DebugPrint("Pa_GetHostApiInfo returned:\n" ); - PaUtil_DebugPrint("\tPaHostApiInfo*: NULL [ PortAudio not initialized ]\n\n" ); -#endif - - } - else if( hostApi < 0 || hostApi >= hostApisCount_ ) - { - info = NULL; - -#ifdef PA_LOG_API_CALLS - PaUtil_DebugPrint("Pa_GetHostApiInfo returned:\n" ); - PaUtil_DebugPrint("\tPaHostApiInfo*: NULL [ hostApi out of range ]\n\n" ); -#endif - - } - else - { - info = &hostApis_[hostApi]->info; - -#ifdef PA_LOG_API_CALLS - PaUtil_DebugPrint("Pa_GetHostApiInfo returned:\n" ); - PaUtil_DebugPrint("\tPaHostApiInfo*: 0x%p\n", info ); - PaUtil_DebugPrint("\t{" ); - PaUtil_DebugPrint("\t\tint structVersion: %d\n", info->structVersion ); - PaUtil_DebugPrint("\t\tPaHostApiTypeId type: %d\n", info->type ); - PaUtil_DebugPrint("\t\tconst char *name: %s\n\n", info->name ); - PaUtil_DebugPrint("\t}\n\n" ); -#endif - - } - - return info; -} - - -PaDeviceIndex Pa_HostApiDeviceIndexToDeviceIndex( PaHostApiIndex hostApi, int hostApiDeviceIndex ) -{ - PaDeviceIndex result; - -#ifdef PA_LOG_API_CALLS - PaUtil_DebugPrint("Pa_HostApiDeviceIndexToPaDeviceIndex called:\n" ); - PaUtil_DebugPrint("\tPaHostApiIndex hostApi: %d\n", hostApi ); - PaUtil_DebugPrint("\tint hostApiDeviceIndex: %d\n", hostApiDeviceIndex ); -#endif - - if( !PA_IS_INITIALISED_ ) - { - result = paNotInitialized; - } - else - { - if( hostApi < 0 || hostApi >= hostApisCount_ ) - { - result = paInvalidHostApi; - } - else - { - if( hostApiDeviceIndex < 0 || - hostApiDeviceIndex >= hostApis_[hostApi]->info.deviceCount ) - { - result = paInvalidDevice; - } - else - { - result = hostApis_[hostApi]->privatePaFrontInfo.baseDeviceIndex + hostApiDeviceIndex; - } - } - } - -#ifdef PA_LOG_API_CALLS - PaUtil_DebugPrint("Pa_HostApiDeviceIndexToPaDeviceIndex returned:\n" ); - if( result < 0 ) - PaUtil_DebugPrint("\tPaError: %d ( %s )\n\n", result, Pa_GetErrorText( result ) ); - else - PaUtil_DebugPrint("\tPaDeviceIndex: %d\n\n", result ); -#endif - - return result; -} - - -PaDeviceIndex Pa_GetDeviceCount( void ) -{ - PaDeviceIndex result; - -#ifdef PA_LOG_API_CALLS - PaUtil_DebugPrint("Pa_GetDeviceCount called.\n" ); -#endif - - if( !PA_IS_INITIALISED_ ) - { - result = paNotInitialized; - } - else - { - result = deviceCount_; - } - -#ifdef PA_LOG_API_CALLS - PaUtil_DebugPrint("Pa_GetDeviceCount returned:\n" ); - if( result < 0 ) - PaUtil_DebugPrint("\tPaError: %d ( %s )\n\n", result, Pa_GetErrorText( result ) ); - else - PaUtil_DebugPrint("\tPaDeviceIndex: %d\n\n", result ); -#endif - - return result; -} - - -PaDeviceIndex Pa_GetDefaultInputDevice( void ) -{ - PaHostApiIndex hostApi; - PaDeviceIndex result; - -#ifdef PA_LOG_API_CALLS - PaUtil_DebugPrint("Pa_GetDefaultInputDevice called.\n" ); -#endif - - hostApi = Pa_GetDefaultHostApi(); - if( hostApi < 0 ) - { - result = paNoDevice; - } - else - { - result = hostApis_[hostApi]->info.defaultInputDevice; - } - -#ifdef PA_LOG_API_CALLS - PaUtil_DebugPrint("Pa_GetDefaultInputDevice returned:\n" ); - PaUtil_DebugPrint("\tPaDeviceIndex: %d\n\n", result ); -#endif - - return result; -} - - -PaDeviceIndex Pa_GetDefaultOutputDevice( void ) -{ - PaHostApiIndex hostApi; - PaDeviceIndex result; - -#ifdef PA_LOG_API_CALLS - PaUtil_DebugPrint("Pa_GetDefaultOutputDevice called.\n" ); -#endif - - hostApi = Pa_GetDefaultHostApi(); - if( hostApi < 0 ) - { - result = paNoDevice; - } - else - { - result = hostApis_[hostApi]->info.defaultOutputDevice; - } - -#ifdef PA_LOG_API_CALLS - PaUtil_DebugPrint("Pa_GetDefaultOutputDevice returned:\n" ); - PaUtil_DebugPrint("\tPaDeviceIndex: %d\n\n", result ); -#endif - - return result; -} - - -const PaDeviceInfo* Pa_GetDeviceInfo( PaDeviceIndex device ) -{ - int hostSpecificDeviceIndex; - int hostApiIndex = FindHostApi( device, &hostSpecificDeviceIndex ); - PaDeviceInfo *result; - - -#ifdef PA_LOG_API_CALLS - PaUtil_DebugPrint("Pa_GetDeviceInfo called:\n" ); - PaUtil_DebugPrint("\tPaDeviceIndex device: %d\n", device ); -#endif - - if( hostApiIndex < 0 ) - { - result = NULL; - -#ifdef PA_LOG_API_CALLS - PaUtil_DebugPrint("Pa_GetDeviceInfo returned:\n" ); - PaUtil_DebugPrint("\tPaDeviceInfo* NULL [ invalid device index ]\n\n" ); -#endif - - } - else - { - result = hostApis_[hostApiIndex]->deviceInfos[ hostSpecificDeviceIndex ]; - -#ifdef PA_LOG_API_CALLS - PaUtil_DebugPrint("Pa_GetDeviceInfo returned:\n" ); - PaUtil_DebugPrint("\tPaDeviceInfo*: 0x%p:\n", result ); - PaUtil_DebugPrint("\t{\n" ); - - PaUtil_DebugPrint("\t\tint structVersion: %d\n", result->structVersion ); - PaUtil_DebugPrint("\t\tconst char *name: %s\n", result->name ); - PaUtil_DebugPrint("\t\tPaHostApiIndex hostApi: %d\n", result->hostApi ); - PaUtil_DebugPrint("\t\tint maxInputChannels: %d\n", result->maxInputChannels ); - PaUtil_DebugPrint("\t\tint maxOutputChannels: %d\n", result->maxOutputChannels ); - PaUtil_DebugPrint("\t}\n\n" ); -#endif - - } - - return result; -} - - -/* - SampleFormatIsValid() returns 1 if sampleFormat is a sample format - defined in portaudio.h, or 0 otherwise. -*/ -static int SampleFormatIsValid( PaSampleFormat format ) -{ - switch( format & ~paNonInterleaved ) - { - case paFloat32: return 1; - case paInt16: return 1; - case paInt32: return 1; - case paInt24: return 1; - case paInt8: return 1; - case paUInt8: return 1; - case paCustomFormat: return 1; - default: return 0; - } -} - -/* - NOTE: make sure this validation list is kept syncronised with the one in - pa_hostapi.h - - ValidateOpenStreamParameters() checks that parameters to Pa_OpenStream() - conform to the expected values as described below. This function is - also designed to be used with the proposed Pa_IsFormatSupported() function. - - There are basically two types of validation that could be performed: - Generic conformance validation, and device capability mismatch - validation. This function performs only generic conformance validation. - Validation that would require knowledge of device capabilities is - not performed because of potentially complex relationships between - combinations of parameters - for example, even if the sampleRate - seems ok, it might not be for a duplex stream - we have no way of - checking this in an API-neutral way, so we don't try. - - On success the function returns PaNoError and fills in hostApi, - hostApiInputDeviceID, and hostApiOutputDeviceID fields. On failure - the function returns an error code indicating the first encountered - parameter error. - - - If ValidateOpenStreamParameters() returns paNoError, the following - assertions are guaranteed to be true. - - - at least one of inputParameters & outputParmeters is valid (not NULL) - - - if inputParameters & outputParameters are both valid, that - inputParameters->device & outputParameters->device both use the same host api - - PaDeviceIndex inputParameters->device - - is within range (0 to Pa_GetDeviceCount-1) Or: - - is paUseHostApiSpecificDeviceSpecification and - inputParameters->hostApiSpecificStreamInfo is non-NULL and refers - to a valid host api - - int inputParameters->channelCount - - if inputParameters->device is not paUseHostApiSpecificDeviceSpecification, channelCount is > 0 - - upper bound is NOT validated against device capabilities - - PaSampleFormat inputParameters->sampleFormat - - is one of the sample formats defined in portaudio.h - - void *inputParameters->hostApiSpecificStreamInfo - - if supplied its hostApi field matches the input device's host Api - - PaDeviceIndex outputParmeters->device - - is within range (0 to Pa_GetDeviceCount-1) - - int outputParmeters->channelCount - - if inputDevice is valid, channelCount is > 0 - - upper bound is NOT validated against device capabilities - - PaSampleFormat outputParmeters->sampleFormat - - is one of the sample formats defined in portaudio.h - - void *outputParmeters->hostApiSpecificStreamInfo - - if supplied its hostApi field matches the output device's host Api - - double sampleRate - - is not an 'absurd' rate (less than 1000. or greater than 200000.) - - sampleRate is NOT validated against device capabilities - - PaStreamFlags streamFlags - - unused platform neutral flags are zero - - paNeverDropInput is only used for full-duplex callback streams with - variable buffer size (paFramesPerBufferUnspecified) -*/ -static PaError ValidateOpenStreamParameters( - const PaStreamParameters *inputParameters, - const PaStreamParameters *outputParameters, - double sampleRate, - unsigned long framesPerBuffer, - PaStreamFlags streamFlags, - PaStreamCallback *streamCallback, - PaUtilHostApiRepresentation **hostApi, - PaDeviceIndex *hostApiInputDevice, - PaDeviceIndex *hostApiOutputDevice ) -{ - int inputHostApiIndex = -1, /* Surpress uninitialised var warnings: compiler does */ - outputHostApiIndex = -1; /* not see that if inputParameters and outputParame- */ - /* ters are both nonzero, these indices are set. */ - - if( (inputParameters == NULL) && (outputParameters == NULL) ) - { - return paInvalidDevice; /** @todo should be a new error code "invalid device parameters" or something */ - } - else - { - if( inputParameters == NULL ) - { - *hostApiInputDevice = paNoDevice; - } - else if( inputParameters->device == paUseHostApiSpecificDeviceSpecification ) - { - if( inputParameters->hostApiSpecificStreamInfo ) - { - inputHostApiIndex = Pa_HostApiTypeIdToHostApiIndex( - ((PaUtilHostApiSpecificStreamInfoHeader*)inputParameters->hostApiSpecificStreamInfo)->hostApiType ); - - if( inputHostApiIndex != -1 ) - { - *hostApiInputDevice = paUseHostApiSpecificDeviceSpecification; - *hostApi = hostApis_[inputHostApiIndex]; - } - else - { - return paInvalidDevice; - } - } - else - { - return paInvalidDevice; - } - } - else - { - if( inputParameters->device < 0 || inputParameters->device >= deviceCount_ ) - return paInvalidDevice; - - inputHostApiIndex = FindHostApi( inputParameters->device, hostApiInputDevice ); - if( inputHostApiIndex < 0 ) - return paInternalError; - - *hostApi = hostApis_[inputHostApiIndex]; - - if( inputParameters->channelCount <= 0 ) - return paInvalidChannelCount; - - if( !SampleFormatIsValid( inputParameters->sampleFormat ) ) - return paSampleFormatNotSupported; - - if( inputParameters->hostApiSpecificStreamInfo != NULL ) - { - if( ((PaUtilHostApiSpecificStreamInfoHeader*)inputParameters->hostApiSpecificStreamInfo)->hostApiType - != (*hostApi)->info.type ) - return paIncompatibleHostApiSpecificStreamInfo; - } - } - - if( outputParameters == NULL ) - { - *hostApiOutputDevice = paNoDevice; - } - else if( outputParameters->device == paUseHostApiSpecificDeviceSpecification ) - { - if( outputParameters->hostApiSpecificStreamInfo ) - { - outputHostApiIndex = Pa_HostApiTypeIdToHostApiIndex( - ((PaUtilHostApiSpecificStreamInfoHeader*)outputParameters->hostApiSpecificStreamInfo)->hostApiType ); - - if( outputHostApiIndex != -1 ) - { - *hostApiOutputDevice = paUseHostApiSpecificDeviceSpecification; - *hostApi = hostApis_[outputHostApiIndex]; - } - else - { - return paInvalidDevice; - } - } - else - { - return paInvalidDevice; - } - } - else - { - if( outputParameters->device < 0 || outputParameters->device >= deviceCount_ ) - return paInvalidDevice; - - outputHostApiIndex = FindHostApi( outputParameters->device, hostApiOutputDevice ); - if( outputHostApiIndex < 0 ) - return paInternalError; - - *hostApi = hostApis_[outputHostApiIndex]; - - if( outputParameters->channelCount <= 0 ) - return paInvalidChannelCount; - - if( !SampleFormatIsValid( outputParameters->sampleFormat ) ) - return paSampleFormatNotSupported; - - if( outputParameters->hostApiSpecificStreamInfo != NULL ) - { - if( ((PaUtilHostApiSpecificStreamInfoHeader*)outputParameters->hostApiSpecificStreamInfo)->hostApiType - != (*hostApi)->info.type ) - return paIncompatibleHostApiSpecificStreamInfo; - } - } - - if( (inputParameters != NULL) && (outputParameters != NULL) ) - { - /* ensure that both devices use the same API */ - if( inputHostApiIndex != outputHostApiIndex ) - return paBadIODeviceCombination; - } - } - - - /* Check for absurd sample rates. */ - if( (sampleRate < 1000.0) || (sampleRate > 200000.0) ) - return paInvalidSampleRate; - - if( ((streamFlags & ~paPlatformSpecificFlags) & ~(paClipOff | paDitherOff | paNeverDropInput | paPrimeOutputBuffersUsingStreamCallback ) ) != 0 ) - return paInvalidFlag; - - if( streamFlags & paNeverDropInput ) - { - /* must be a callback stream */ - if( !streamCallback ) - return paInvalidFlag; - - /* must be a full duplex stream */ - if( (inputParameters == NULL) || (outputParameters == NULL) ) - return paInvalidFlag; - - /* must use paFramesPerBufferUnspecified */ - if( framesPerBuffer != paFramesPerBufferUnspecified ) - return paInvalidFlag; - } - - return paNoError; -} - - -PaError Pa_IsFormatSupported( const PaStreamParameters *inputParameters, - const PaStreamParameters *outputParameters, - double sampleRate ) -{ - PaError result; - PaUtilHostApiRepresentation *hostApi; - PaDeviceIndex hostApiInputDevice, hostApiOutputDevice; - PaStreamParameters hostApiInputParameters, hostApiOutputParameters; - PaStreamParameters *hostApiInputParametersPtr, *hostApiOutputParametersPtr; - - -#ifdef PA_LOG_API_CALLS - PaUtil_DebugPrint("Pa_IsFormatSupported called:\n" ); - - if( inputParameters == NULL ){ - PaUtil_DebugPrint("\tPaStreamParameters *inputParameters: NULL\n" ); - }else{ - PaUtil_DebugPrint("\tPaStreamParameters *inputParameters: 0x%p\n", inputParameters ); - PaUtil_DebugPrint("\tPaDeviceIndex inputParameters->device: %d\n", inputParameters->device ); - PaUtil_DebugPrint("\tint inputParameters->channelCount: %d\n", inputParameters->channelCount ); - PaUtil_DebugPrint("\tPaSampleFormat inputParameters->sampleFormat: %d\n", inputParameters->sampleFormat ); - PaUtil_DebugPrint("\tPaTime inputParameters->suggestedLatency: %f\n", inputParameters->suggestedLatency ); - PaUtil_DebugPrint("\tvoid *inputParameters->hostApiSpecificStreamInfo: 0x%p\n", inputParameters->hostApiSpecificStreamInfo ); - } - - if( outputParameters == NULL ){ - PaUtil_DebugPrint("\tPaStreamParameters *outputParameters: NULL\n" ); - }else{ - PaUtil_DebugPrint("\tPaStreamParameters *outputParameters: 0x%p\n", outputParameters ); - PaUtil_DebugPrint("\tPaDeviceIndex outputParameters->device: %d\n", outputParameters->device ); - PaUtil_DebugPrint("\tint outputParameters->channelCount: %d\n", outputParameters->channelCount ); - PaUtil_DebugPrint("\tPaSampleFormat outputParameters->sampleFormat: %d\n", outputParameters->sampleFormat ); - PaUtil_DebugPrint("\tPaTime outputParameters->suggestedLatency: %f\n", outputParameters->suggestedLatency ); - PaUtil_DebugPrint("\tvoid *outputParameters->hostApiSpecificStreamInfo: 0x%p\n", outputParameters->hostApiSpecificStreamInfo ); - } - - PaUtil_DebugPrint("\tdouble sampleRate: %g\n", sampleRate ); -#endif - - if( !PA_IS_INITIALISED_ ) - { - result = paNotInitialized; - -#ifdef PA_LOG_API_CALLS - PaUtil_DebugPrint("Pa_IsFormatSupported returned:\n" ); - PaUtil_DebugPrint("\tPaError: %d ( %s )\n\n", result, Pa_GetErrorText( result ) ); -#endif - return result; - } - - result = ValidateOpenStreamParameters( inputParameters, - outputParameters, - sampleRate, 0, paNoFlag, 0, - &hostApi, - &hostApiInputDevice, - &hostApiOutputDevice ); - if( result != paNoError ) - { -#ifdef PA_LOG_API_CALLS - PaUtil_DebugPrint("Pa_IsFormatSupported returned:\n" ); - PaUtil_DebugPrint("\tPaError: %d ( %s )\n\n", result, Pa_GetErrorText( result ) ); -#endif - return result; - } - - - if( inputParameters ) - { - hostApiInputParameters.device = hostApiInputDevice; - hostApiInputParameters.channelCount = inputParameters->channelCount; - hostApiInputParameters.sampleFormat = inputParameters->sampleFormat; - hostApiInputParameters.suggestedLatency = inputParameters->suggestedLatency; - hostApiInputParameters.hostApiSpecificStreamInfo = inputParameters->hostApiSpecificStreamInfo; - hostApiInputParametersPtr = &hostApiInputParameters; - } - else - { - hostApiInputParametersPtr = NULL; - } - - if( outputParameters ) - { - hostApiOutputParameters.device = hostApiOutputDevice; - hostApiOutputParameters.channelCount = outputParameters->channelCount; - hostApiOutputParameters.sampleFormat = outputParameters->sampleFormat; - hostApiOutputParameters.suggestedLatency = outputParameters->suggestedLatency; - hostApiOutputParameters.hostApiSpecificStreamInfo = outputParameters->hostApiSpecificStreamInfo; - hostApiOutputParametersPtr = &hostApiOutputParameters; - } - else - { - hostApiOutputParametersPtr = NULL; - } - - result = hostApi->IsFormatSupported( hostApi, - hostApiInputParametersPtr, hostApiOutputParametersPtr, - sampleRate ); - -#ifdef PA_LOG_API_CALLS - PaUtil_DebugPrint("Pa_OpenStream returned:\n" ); - if( result == paFormatIsSupported ) - PaUtil_DebugPrint("\tPaError: 0 [ paFormatIsSupported ]\n\n" ); - else - PaUtil_DebugPrint("\tPaError: %d ( %s )\n\n", result, Pa_GetErrorText( result ) ); -#endif - - return result; -} - - -PaError Pa_OpenStream( PaStream** stream, - const PaStreamParameters *inputParameters, - const PaStreamParameters *outputParameters, - double sampleRate, - unsigned long framesPerBuffer, - PaStreamFlags streamFlags, - PaStreamCallback *streamCallback, - void *userData ) -{ - PaError result; - PaUtilHostApiRepresentation *hostApi; - PaDeviceIndex hostApiInputDevice, hostApiOutputDevice; - PaStreamParameters hostApiInputParameters, hostApiOutputParameters; - PaStreamParameters *hostApiInputParametersPtr, *hostApiOutputParametersPtr; - - -#ifdef PA_LOG_API_CALLS - PaUtil_DebugPrint("Pa_OpenStream called:\n" ); - PaUtil_DebugPrint("\tPaStream** stream: 0x%p\n", stream ); - - if( inputParameters == NULL ){ - PaUtil_DebugPrint("\tPaStreamParameters *inputParameters: NULL\n" ); - }else{ - PaUtil_DebugPrint("\tPaStreamParameters *inputParameters: 0x%p\n", inputParameters ); - PaUtil_DebugPrint("\tPaDeviceIndex inputParameters->device: %d\n", inputParameters->device ); - PaUtil_DebugPrint("\tint inputParameters->channelCount: %d\n", inputParameters->channelCount ); - PaUtil_DebugPrint("\tPaSampleFormat inputParameters->sampleFormat: %d\n", inputParameters->sampleFormat ); - PaUtil_DebugPrint("\tPaTime inputParameters->suggestedLatency: %f\n", inputParameters->suggestedLatency ); - PaUtil_DebugPrint("\tvoid *inputParameters->hostApiSpecificStreamInfo: 0x%p\n", inputParameters->hostApiSpecificStreamInfo ); - } - - if( outputParameters == NULL ){ - PaUtil_DebugPrint("\tPaStreamParameters *outputParameters: NULL\n" ); - }else{ - PaUtil_DebugPrint("\tPaStreamParameters *outputParameters: 0x%p\n", outputParameters ); - PaUtil_DebugPrint("\tPaDeviceIndex outputParameters->device: %d\n", outputParameters->device ); - PaUtil_DebugPrint("\tint outputParameters->channelCount: %d\n", outputParameters->channelCount ); - PaUtil_DebugPrint("\tPaSampleFormat outputParameters->sampleFormat: %d\n", outputParameters->sampleFormat ); - PaUtil_DebugPrint("\tPaTime outputParameters->suggestedLatency: %f\n", outputParameters->suggestedLatency ); - PaUtil_DebugPrint("\tvoid *outputParameters->hostApiSpecificStreamInfo: 0x%p\n", outputParameters->hostApiSpecificStreamInfo ); - } - - PaUtil_DebugPrint("\tdouble sampleRate: %g\n", sampleRate ); - PaUtil_DebugPrint("\tunsigned long framesPerBuffer: %d\n", framesPerBuffer ); - PaUtil_DebugPrint("\tPaStreamFlags streamFlags: 0x%x\n", streamFlags ); - PaUtil_DebugPrint("\tPaStreamCallback *streamCallback: 0x%p\n", streamCallback ); - PaUtil_DebugPrint("\tvoid *userData: 0x%p\n", userData ); -#endif - - if( !PA_IS_INITIALISED_ ) - { - result = paNotInitialized; - -#ifdef PA_LOG_API_CALLS - PaUtil_DebugPrint("Pa_OpenStream returned:\n" ); - PaUtil_DebugPrint("\t*(PaStream** stream): undefined\n" ); - PaUtil_DebugPrint("\tPaError: %d ( %s )\n\n", result, Pa_GetErrorText( result ) ); -#endif - return result; - } - - /* Check for parameter errors. - NOTE: make sure this validation list is kept syncronised with the one - in pa_hostapi.h - */ - - if( stream == NULL ) - { - result = paBadStreamPtr; - -#ifdef PA_LOG_API_CALLS - PaUtil_DebugPrint("Pa_OpenStream returned:\n" ); - PaUtil_DebugPrint("\t*(PaStream** stream): undefined\n" ); - PaUtil_DebugPrint("\tPaError: %d ( %s )\n\n", result, Pa_GetErrorText( result ) ); -#endif - return result; - } - - result = ValidateOpenStreamParameters( inputParameters, - outputParameters, - sampleRate, framesPerBuffer, - streamFlags, streamCallback, - &hostApi, - &hostApiInputDevice, - &hostApiOutputDevice ); - if( result != paNoError ) - { -#ifdef PA_LOG_API_CALLS - PaUtil_DebugPrint("Pa_OpenStream returned:\n" ); - PaUtil_DebugPrint("\t*(PaStream** stream): undefined\n" ); - PaUtil_DebugPrint("\tPaError: %d ( %s )\n\n", result, Pa_GetErrorText( result ) ); -#endif - return result; - } - - - if( inputParameters ) - { - hostApiInputParameters.device = hostApiInputDevice; - hostApiInputParameters.channelCount = inputParameters->channelCount; - hostApiInputParameters.sampleFormat = inputParameters->sampleFormat; - hostApiInputParameters.suggestedLatency = inputParameters->suggestedLatency; - hostApiInputParameters.hostApiSpecificStreamInfo = inputParameters->hostApiSpecificStreamInfo; - hostApiInputParametersPtr = &hostApiInputParameters; - } - else - { - hostApiInputParametersPtr = NULL; - } - - if( outputParameters ) - { - hostApiOutputParameters.device = hostApiOutputDevice; - hostApiOutputParameters.channelCount = outputParameters->channelCount; - hostApiOutputParameters.sampleFormat = outputParameters->sampleFormat; - hostApiOutputParameters.suggestedLatency = outputParameters->suggestedLatency; - hostApiOutputParameters.hostApiSpecificStreamInfo = outputParameters->hostApiSpecificStreamInfo; - hostApiOutputParametersPtr = &hostApiOutputParameters; - } - else - { - hostApiOutputParametersPtr = NULL; - } - - result = hostApi->OpenStream( hostApi, stream, - hostApiInputParametersPtr, hostApiOutputParametersPtr, - sampleRate, framesPerBuffer, streamFlags, streamCallback, userData ); - - if( result == paNoError ) - AddOpenStream( *stream ); - - -#ifdef PA_LOG_API_CALLS - PaUtil_DebugPrint("Pa_OpenStream returned:\n" ); - PaUtil_DebugPrint("\t*(PaStream** stream): 0x%p\n", *stream ); - PaUtil_DebugPrint("\tPaError: %d ( %s )\n\n", result, Pa_GetErrorText( result ) ); -#endif - - return result; -} - - -PaError Pa_OpenDefaultStream( PaStream** stream, - int inputChannelCount, - int outputChannelCount, - PaSampleFormat sampleFormat, - double sampleRate, - unsigned long framesPerBuffer, - PaStreamCallback *streamCallback, - void *userData ) -{ - PaError result; - PaStreamParameters hostApiInputParameters, hostApiOutputParameters; - PaStreamParameters *hostApiInputParametersPtr, *hostApiOutputParametersPtr; - -#ifdef PA_LOG_API_CALLS - PaUtil_DebugPrint("Pa_OpenDefaultStream called:\n" ); - PaUtil_DebugPrint("\tPaStream** stream: 0x%p\n", stream ); - PaUtil_DebugPrint("\tint inputChannelCount: %d\n", inputChannelCount ); - PaUtil_DebugPrint("\tint outputChannelCount: %d\n", outputChannelCount ); - PaUtil_DebugPrint("\tPaSampleFormat sampleFormat: %d\n", sampleFormat ); - PaUtil_DebugPrint("\tdouble sampleRate: %g\n", sampleRate ); - PaUtil_DebugPrint("\tunsigned long framesPerBuffer: %d\n", framesPerBuffer ); - PaUtil_DebugPrint("\tPaStreamCallback *streamCallback: 0x%p\n", streamCallback ); - PaUtil_DebugPrint("\tvoid *userData: 0x%p\n", userData ); -#endif - - - if( inputChannelCount > 0 ) - { - hostApiInputParameters.device = Pa_GetDefaultInputDevice(); - hostApiInputParameters.channelCount = inputChannelCount; - hostApiInputParameters.sampleFormat = sampleFormat; - /* defaultHighInputLatency is used below instead of - defaultLowInputLatency because it is more important for the default - stream to work reliably than it is for it to work with the lowest - latency. - */ - hostApiInputParameters.suggestedLatency = - Pa_GetDeviceInfo( hostApiInputParameters.device )->defaultHighInputLatency; - hostApiInputParameters.hostApiSpecificStreamInfo = NULL; - hostApiInputParametersPtr = &hostApiInputParameters; - } - else - { - hostApiInputParametersPtr = NULL; - } - - if( outputChannelCount > 0 ) - { - hostApiOutputParameters.device = Pa_GetDefaultOutputDevice(); - hostApiOutputParameters.channelCount = outputChannelCount; - hostApiOutputParameters.sampleFormat = sampleFormat; - /* defaultHighOutputLatency is used below instead of - defaultLowOutputLatency because it is more important for the default - stream to work reliably than it is for it to work with the lowest - latency. - */ - hostApiOutputParameters.suggestedLatency = - Pa_GetDeviceInfo( hostApiOutputParameters.device )->defaultHighOutputLatency; - hostApiOutputParameters.hostApiSpecificStreamInfo = NULL; - hostApiOutputParametersPtr = &hostApiOutputParameters; - } - else - { - hostApiOutputParametersPtr = NULL; - } - - - result = Pa_OpenStream( - stream, hostApiInputParametersPtr, hostApiOutputParametersPtr, - sampleRate, framesPerBuffer, paNoFlag, streamCallback, userData ); - -#ifdef PA_LOG_API_CALLS - PaUtil_DebugPrint("Pa_OpenDefaultStream returned:\n" ); - PaUtil_DebugPrint("\t*(PaStream** stream): 0x%p", *stream ); - PaUtil_DebugPrint("\tPaError: %d ( %s )\n\n", result, Pa_GetErrorText( result ) ); -#endif - - return result; -} - - -PaError PaUtil_ValidateStreamPointer( PaStream* stream ) -{ - if( !PA_IS_INITIALISED_ ) return paNotInitialized; - - if( stream == NULL ) return paBadStreamPtr; - - if( ((PaUtilStreamRepresentation*)stream)->magic != PA_STREAM_MAGIC ) - return paBadStreamPtr; - - return paNoError; -} - - -PaError Pa_CloseStream( PaStream* stream ) -{ - PaUtilStreamInterface *interface; - PaError result = PaUtil_ValidateStreamPointer( stream ); - -#ifdef PA_LOG_API_CALLS - PaUtil_DebugPrint("Pa_CloseStream called:\n" ); - PaUtil_DebugPrint("\tPaStream* stream: 0x%p\n", stream ); -#endif - - /* always remove the open stream from our list, even if this function - eventually returns an error. Otherwise CloseOpenStreams() will - get stuck in an infinite loop */ - RemoveOpenStream( stream ); /* be sure to call this _before_ closing the stream */ - - if( result == paNoError ) - { - interface = PA_STREAM_INTERFACE(stream); - - /* abort the stream if it isn't stopped */ - result = interface->IsStopped( stream ); - if( result == 1 ) - result = paNoError; - else if( result == 0 ) - result = interface->Abort( stream ); - - if( result == paNoError ) /** @todo REVIEW: shouldn't we close anyway? */ - result = interface->Close( stream ); - } - -#ifdef PA_LOG_API_CALLS - PaUtil_DebugPrint("Pa_CloseStream returned:\n" ); - PaUtil_DebugPrint("\tPaError: %d ( %s )\n\n", result, Pa_GetErrorText( result ) ); -#endif - - return result; -} - - -PaError Pa_SetStreamFinishedCallback( PaStream *stream, PaStreamFinishedCallback* streamFinishedCallback ) -{ - PaError result = PaUtil_ValidateStreamPointer( stream ); - -#ifdef PA_LOG_API_CALLS - PaUtil_DebugPrint("Pa_SetStreamFinishedCallback called:\n" ); - PaUtil_DebugPrint("\tPaStream* stream: 0x%p\n", stream ); - PaUtil_DebugPrint("\tPaStreamFinishedCallback* streamFinishedCallback: 0x%p\n", streamFinishedCallback ); -#endif - - if( result == paNoError ) - { - result = PA_STREAM_INTERFACE(stream)->IsStopped( stream ); - if( result == 0 ) - { - result = paStreamIsNotStopped ; - } - if( result == 1 ) - { - PA_STREAM_REP( stream )->streamFinishedCallback = streamFinishedCallback; - result = paNoError; - } - } - -#ifdef PA_LOG_API_CALLS - PaUtil_DebugPrint("Pa_SetStreamFinishedCallback returned:\n" ); - PaUtil_DebugPrint("\tPaError: %d ( %s )\n\n", result, Pa_GetErrorText( result ) ); -#endif - - return result; - -} - - -PaError Pa_StartStream( PaStream *stream ) -{ - PaError result = PaUtil_ValidateStreamPointer( stream ); - -#ifdef PA_LOG_API_CALLS - PaUtil_DebugPrint("Pa_StartStream called:\n" ); - PaUtil_DebugPrint("\tPaStream* stream: 0x%p\n", stream ); -#endif - - if( result == paNoError ) - { - result = PA_STREAM_INTERFACE(stream)->IsStopped( stream ); - if( result == 0 ) - { - result = paStreamIsNotStopped ; - } - else if( result == 1 ) - { - result = PA_STREAM_INTERFACE(stream)->Start( stream ); - } - } - -#ifdef PA_LOG_API_CALLS - PaUtil_DebugPrint("Pa_StartStream returned:\n" ); - PaUtil_DebugPrint("\tPaError: %d ( %s )\n\n", result, Pa_GetErrorText( result ) ); -#endif - - return result; -} - - -PaError Pa_StopStream( PaStream *stream ) -{ - PaError result = PaUtil_ValidateStreamPointer( stream ); - -#ifdef PA_LOG_API_CALLS - PaUtil_DebugPrint("Pa_StopStream called\n" ); - PaUtil_DebugPrint("\tPaStream* stream: 0x%p\n", stream ); -#endif - - if( result == paNoError ) - { - result = PA_STREAM_INTERFACE(stream)->IsStopped( stream ); - if( result == 0 ) - { - result = PA_STREAM_INTERFACE(stream)->Stop( stream ); - } - else if( result == 1 ) - { - result = paStreamIsStopped; - } - } - -#ifdef PA_LOG_API_CALLS - PaUtil_DebugPrint("Pa_StopStream returned:\n" ); - PaUtil_DebugPrint("\tPaError: %d ( %s )\n\n", result, Pa_GetErrorText( result ) ); -#endif - - return result; -} - - -PaError Pa_AbortStream( PaStream *stream ) -{ - PaError result = PaUtil_ValidateStreamPointer( stream ); - -#ifdef PA_LOG_API_CALLS - PaUtil_DebugPrint("Pa_AbortStream called:\n" ); - PaUtil_DebugPrint("\tPaStream* stream: 0x%p\n", stream ); -#endif - - if( result == paNoError ) - { - result = PA_STREAM_INTERFACE(stream)->IsStopped( stream ); - if( result == 0 ) - { - result = PA_STREAM_INTERFACE(stream)->Abort( stream ); - } - else if( result == 1 ) - { - result = paStreamIsStopped; - } - } - -#ifdef PA_LOG_API_CALLS - PaUtil_DebugPrint("Pa_AbortStream returned:\n" ); - PaUtil_DebugPrint("\tPaError: %d ( %s )\n\n", result, Pa_GetErrorText( result ) ); -#endif - - return result; -} - - -PaError Pa_IsStreamStopped( PaStream *stream ) -{ - PaError result = PaUtil_ValidateStreamPointer( stream ); - -#ifdef PA_LOG_API_CALLS - PaUtil_DebugPrint("Pa_IsStreamStopped called:\n" ); - PaUtil_DebugPrint("\tPaStream* stream: 0x%p\n", stream ); -#endif - - if( result == paNoError ) - result = PA_STREAM_INTERFACE(stream)->IsStopped( stream ); - -#ifdef PA_LOG_API_CALLS - PaUtil_DebugPrint("Pa_IsStreamStopped returned:\n" ); - PaUtil_DebugPrint("\tPaError: %d ( %s )\n\n", result, Pa_GetErrorText( result ) ); -#endif - - return result; -} - - -PaError Pa_IsStreamActive( PaStream *stream ) -{ - PaError result = PaUtil_ValidateStreamPointer( stream ); - -#ifdef PA_LOG_API_CALLS - PaUtil_DebugPrint("Pa_IsStreamActive called:\n" ); - PaUtil_DebugPrint("\tPaStream* stream: 0x%p\n", stream ); -#endif - - if( result == paNoError ) - result = PA_STREAM_INTERFACE(stream)->IsActive( stream ); - -#ifdef PA_LOG_API_CALLS - PaUtil_DebugPrint("Pa_IsStreamActive returned:\n" ); - PaUtil_DebugPrint("\tPaError: %d ( %s )\n\n", result, Pa_GetErrorText( result ) ); -#endif - - return result; -} - - -const PaStreamInfo* Pa_GetStreamInfo( PaStream *stream ) -{ - PaError error = PaUtil_ValidateStreamPointer( stream ); - const PaStreamInfo *result; - -#ifdef PA_LOG_API_CALLS - PaUtil_DebugPrint("Pa_GetStreamInfo called:\n" ); - PaUtil_DebugPrint("\tPaStream* stream: 0x%p\n", stream ); -#endif - - if( error != paNoError ) - { - result = 0; - -#ifdef PA_LOG_API_CALLS - PaUtil_DebugPrint("Pa_GetStreamInfo returned:\n" ); - PaUtil_DebugPrint("\tconst PaStreamInfo*: 0 [PaError error:%d ( %s )]\n\n", result, error, Pa_GetErrorText( error ) ); -#endif - - } - else - { - result = &PA_STREAM_REP( stream )->streamInfo; - -#ifdef PA_LOG_API_CALLS - PaUtil_DebugPrint("Pa_GetStreamInfo returned:\n" ); - PaUtil_DebugPrint("\tconst PaStreamInfo*: 0x%p:\n", result ); - PaUtil_DebugPrint("\t{" ); - - PaUtil_DebugPrint("\t\tint structVersion: %d\n", result->structVersion ); - PaUtil_DebugPrint("\t\tPaTime inputLatency: %f\n", result->inputLatency ); - PaUtil_DebugPrint("\t\tPaTime outputLatency: %f\n", result->outputLatency ); - PaUtil_DebugPrint("\t\tdouble sampleRate: %f\n", result->sampleRate ); - PaUtil_DebugPrint("\t}\n\n" ); -#endif - - } - - return result; -} - - -PaTime Pa_GetStreamTime( PaStream *stream ) -{ - PaError error = PaUtil_ValidateStreamPointer( stream ); - PaTime result; - -#ifdef PA_LOG_API_CALLS - PaUtil_DebugPrint("Pa_GetStreamTime called:\n" ); - PaUtil_DebugPrint("\tPaStream* stream: 0x%p\n", stream ); -#endif - - if( error != paNoError ) - { - result = 0; - -#ifdef PA_LOG_API_CALLS - PaUtil_DebugPrint("Pa_GetStreamTime returned:\n" ); - PaUtil_DebugPrint("\tPaTime: 0 [PaError error:%d ( %s )]\n\n", result, error, Pa_GetErrorText( error ) ); -#endif - - } - else - { - result = PA_STREAM_INTERFACE(stream)->GetTime( stream ); - -#ifdef PA_LOG_API_CALLS - PaUtil_DebugPrint("Pa_GetStreamTime returned:\n" ); - PaUtil_DebugPrint("\tPaTime: %g\n\n", result ); -#endif - - } - - return result; -} - - -double Pa_GetStreamCpuLoad( PaStream* stream ) -{ - PaError error = PaUtil_ValidateStreamPointer( stream ); - double result; - -#ifdef PA_LOG_API_CALLS - PaUtil_DebugPrint("Pa_GetStreamCpuLoad called:\n" ); - PaUtil_DebugPrint("\tPaStream* stream: 0x%p\n", stream ); -#endif - - if( error != paNoError ) - { - - result = 0.0; - -#ifdef PA_LOG_API_CALLS - PaUtil_DebugPrint("Pa_GetStreamCpuLoad returned:\n" ); - PaUtil_DebugPrint("\tdouble: 0.0 [PaError error: %d ( %s )]\n\n", error, Pa_GetErrorText( error ) ); -#endif - - } - else - { - result = PA_STREAM_INTERFACE(stream)->GetCpuLoad( stream ); - -#ifdef PA_LOG_API_CALLS - PaUtil_DebugPrint("Pa_GetStreamCpuLoad returned:\n" ); - PaUtil_DebugPrint("\tdouble: %g\n\n", result ); -#endif - - } - - return result; -} - - -PaError Pa_ReadStream( PaStream* stream, - void *buffer, - unsigned long frames ) -{ - PaError result = PaUtil_ValidateStreamPointer( stream ); - -#ifdef PA_LOG_API_CALLS - PaUtil_DebugPrint("Pa_ReadStream called:\n" ); - PaUtil_DebugPrint("\tPaStream* stream: 0x%p\n", stream ); -#endif - - if( result == paNoError ) - { - if( frames == 0 ) - { - /* XXX: Should we not allow the implementation to signal any overflow condition? */ - result = paNoError; - } - else if( buffer == 0 ) - { - result = paBadBufferPtr; - } - else - { - result = PA_STREAM_INTERFACE(stream)->IsStopped( stream ); - if( result == 0 ) - { - result = PA_STREAM_INTERFACE(stream)->Read( stream, buffer, frames ); - } - else if( result == 1 ) - { - result = paStreamIsStopped; - } - } - } - -#ifdef PA_LOG_API_CALLS - PaUtil_DebugPrint("Pa_ReadStream returned:\n" ); - PaUtil_DebugPrint("\tPaError: %d ( %s )\n\n", result, Pa_GetErrorText( result ) ); -#endif - - return result; -} - - -PaError Pa_WriteStream( PaStream* stream, - const void *buffer, - unsigned long frames ) -{ - PaError result = PaUtil_ValidateStreamPointer( stream ); - -#ifdef PA_LOG_API_CALLS - PaUtil_DebugPrint("Pa_WriteStream called:\n" ); - PaUtil_DebugPrint("\tPaStream* stream: 0x%p\n", stream ); -#endif - - if( result == paNoError ) - { - if( frames == 0 ) - { - /* XXX: Should we not allow the implementation to signal any underflow condition? */ - result = paNoError; - } - else if( buffer == 0 ) - { - result = paBadBufferPtr; - } - else - { - result = PA_STREAM_INTERFACE(stream)->IsStopped( stream ); - if( result == 0 ) - { - result = PA_STREAM_INTERFACE(stream)->Write( stream, buffer, frames ); - } - else if( result == 1 ) - { - result = paStreamIsStopped; - } - } - } - -#ifdef PA_LOG_API_CALLS - PaUtil_DebugPrint("Pa_WriteStream returned:\n" ); - PaUtil_DebugPrint("\tPaError: %d ( %s )\n\n", result, Pa_GetErrorText( result ) ); -#endif - - return result; -} - -signed long Pa_GetStreamReadAvailable( PaStream* stream ) -{ - PaError error = PaUtil_ValidateStreamPointer( stream ); - signed long result; - -#ifdef PA_LOG_API_CALLS - PaUtil_DebugPrint("Pa_GetStreamReadAvailable called:\n" ); - PaUtil_DebugPrint("\tPaStream* stream: 0x%p\n", stream ); -#endif - - if( error != paNoError ) - { - result = 0; - -#ifdef PA_LOG_API_CALLS - PaUtil_DebugPrint("Pa_GetStreamReadAvailable returned:\n" ); - PaUtil_DebugPrint("\tunsigned long: 0 [ PaError error: %d ( %s ) ]\n\n", error, Pa_GetErrorText( error ) ); -#endif - - } - else - { - result = PA_STREAM_INTERFACE(stream)->GetReadAvailable( stream ); - -#ifdef PA_LOG_API_CALLS - PaUtil_DebugPrint("Pa_GetStreamReadAvailable returned:\n" ); - PaUtil_DebugPrint("\tPaError: %d ( %s )\n\n", result, Pa_GetErrorText( result ) ); -#endif - - } - - return result; -} - - -signed long Pa_GetStreamWriteAvailable( PaStream* stream ) -{ - PaError error = PaUtil_ValidateStreamPointer( stream ); - signed long result; - -#ifdef PA_LOG_API_CALLS - PaUtil_DebugPrint("Pa_GetStreamWriteAvailable called:\n" ); - PaUtil_DebugPrint("\tPaStream* stream: 0x%p\n", stream ); -#endif - - if( error != paNoError ) - { - result = 0; - -#ifdef PA_LOG_API_CALLS - PaUtil_DebugPrint("Pa_GetStreamWriteAvailable returned:\n" ); - PaUtil_DebugPrint("\tunsigned long: 0 [ PaError error: %d ( %s ) ]\n\n", error, Pa_GetErrorText( error ) ); -#endif - - } - else - { - result = PA_STREAM_INTERFACE(stream)->GetWriteAvailable( stream ); - -#ifdef PA_LOG_API_CALLS - PaUtil_DebugPrint("Pa_GetStreamWriteAvailable returned:\n" ); - PaUtil_DebugPrint("\tPaError: %d ( %s )\n\n", result, Pa_GetErrorText( result ) ); -#endif - - } - - return result; -} - - -PaError Pa_GetSampleSize( PaSampleFormat format ) -{ - int result; - -#ifdef PA_LOG_API_CALLS - PaUtil_DebugPrint("Pa_GetSampleSize called:\n" ); - PaUtil_DebugPrint("\tPaSampleFormat format: %d\n", format ); -#endif - - switch( format & ~paNonInterleaved ) - { - - case paUInt8: - case paInt8: - result = 1; - break; - - case paInt16: - result = 2; - break; - - case paInt24: - result = 3; - break; - - case paFloat32: - case paInt32: - result = 4; - break; - - default: - result = paSampleFormatNotSupported; - break; - } - -#ifdef PA_LOG_API_CALLS - PaUtil_DebugPrint("Pa_GetSampleSize returned:\n" ); - if( result > 0 ) - PaUtil_DebugPrint("\tint: %d\n\n", result ); - else - PaUtil_DebugPrint("\tPaError: %d ( %s )\n\n", result, Pa_GetErrorText( result ) ); -#endif - - return (PaError) result; -} - |