diff options
author | Miller Puckette <millerpuckette@users.sourceforge.net> | 2004-09-06 20:44:42 +0000 |
---|---|---|
committer | Miller Puckette <millerpuckette@users.sourceforge.net> | 2004-09-06 20:44:42 +0000 |
commit | cfc2f7d280ae57ef563dd69bad27c61a148d6ded (patch) | |
tree | 92c4c645399fcad23f4a6ba15dff91c0e6fccb29 /pd/portaudio/pa_common/pa_stream.c | |
parent | ed932acb5860bf8b9296169676499562a55d139e (diff) |
... more changes to try to upload 0.38 test 5 to CVS
svn path=/trunk/; revision=2011
Diffstat (limited to 'pd/portaudio/pa_common/pa_stream.c')
-rw-r--r-- | pd/portaudio/pa_common/pa_stream.c | 141 |
1 files changed, 141 insertions, 0 deletions
diff --git a/pd/portaudio/pa_common/pa_stream.c b/pd/portaudio/pa_common/pa_stream.c new file mode 100644 index 00000000..044dde29 --- /dev/null +++ b/pd/portaudio/pa_common/pa_stream.c @@ -0,0 +1,141 @@ +/* + * $Id: pa_stream.c,v 1.1.2.12 2003/09/20 21:31:00 rossbencina Exp $ + * Portable Audio I/O Library + * + * + * Based on the Open Source API proposed by Ross Bencina + * Copyright (c) 2002 Ross Bencina + * + * 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. + */ + +/** @file + @brief Interface used by pa_front to virtualize functions which operate on + streams. +*/ + + +#include "pa_stream.h" + + +void PaUtil_InitializeStreamInterface( PaUtilStreamInterface *streamInterface, + PaError (*Close)( PaStream* ), + PaError (*Start)( PaStream* ), + PaError (*Stop)( PaStream* ), + PaError (*Abort)( PaStream* ), + PaError (*IsStopped)( PaStream* ), + PaError (*IsActive)( PaStream* ), + PaTime (*GetTime)( PaStream* ), + double (*GetCpuLoad)( PaStream* ), + PaError (*Read)( PaStream*, void *, unsigned long ), + PaError (*Write)( PaStream*, const void *, unsigned long ), + signed long (*GetReadAvailable)( PaStream* ), + signed long (*GetWriteAvailable)( PaStream* ) ) +{ + streamInterface->Close = Close; + streamInterface->Start = Start; + streamInterface->Stop = Stop; + streamInterface->Abort = Abort; + streamInterface->IsStopped = IsStopped; + streamInterface->IsActive = IsActive; + streamInterface->GetTime = GetTime; + streamInterface->GetCpuLoad = GetCpuLoad; + streamInterface->Read = Read; + streamInterface->Write = Write; + streamInterface->GetReadAvailable = GetReadAvailable; + streamInterface->GetWriteAvailable = GetWriteAvailable; +} + + +void PaUtil_InitializeStreamRepresentation( PaUtilStreamRepresentation *streamRepresentation, + PaUtilStreamInterface *streamInterface, + PaStreamCallback *streamCallback, + void *userData ) +{ + streamRepresentation->magic = PA_STREAM_MAGIC; + streamRepresentation->nextOpenStream = 0; + streamRepresentation->streamInterface = streamInterface; + streamRepresentation->streamCallback = streamCallback; + streamRepresentation->streamFinishedCallback = 0; + + streamRepresentation->userData = userData; + + streamRepresentation->streamInfo.inputLatency = 0.; + streamRepresentation->streamInfo.outputLatency = 0.; + streamRepresentation->streamInfo.sampleRate = 0.; +} + + +void PaUtil_TerminateStreamRepresentation( PaUtilStreamRepresentation *streamRepresentation ) +{ + streamRepresentation->magic = 0; +} + + +PaError PaUtil_DummyRead( PaStream* stream, + void *buffer, + unsigned long frames ) +{ + (void)stream; /* unused parameter */ + (void)buffer; /* unused parameter */ + (void)frames; /* unused parameter */ + + return paCanNotReadFromACallbackStream; +} + + +PaError PaUtil_DummyWrite( PaStream* stream, + const void *buffer, + unsigned long frames ) +{ + (void)stream; /* unused parameter */ + (void)buffer; /* unused parameter */ + (void)frames; /* unused parameter */ + + return paCanNotWriteToACallbackStream; +} + + +signed long PaUtil_DummyGetReadAvailable( PaStream* stream ) +{ + (void)stream; /* unused parameter */ + + return paCanNotReadFromACallbackStream; +} + + +signed long PaUtil_DummyGetWriteAvailable( PaStream* stream ) +{ + (void)stream; /* unused parameter */ + + return paCanNotWriteToACallbackStream; +} + + +double PaUtil_DummyGetCpuLoad( PaStream* stream ) +{ + (void)stream; /* unused parameter */ + + return 0.0; +} |