Roll-up of SVN hotplug branch at most recent revision (r1677), based at the same point in the master revision history as it was originally applied.

This commit is contained in:
Ross Bencina 2016-09-03 22:22:52 +10:00
commit d13fcd8ea9
27 changed files with 2117 additions and 1435 deletions

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@ -35,6 +35,8 @@ Pa_GetStreamReadAvailable @31
Pa_GetStreamWriteAvailable @32
Pa_GetSampleSize @33
Pa_Sleep @34
Pa_UpdateAvailableDeviceList @35
Pa_SetDevicesChangedCallback @36
PaAsio_GetAvailableLatencyValues @50
PaAsio_ShowControlPanel @51
PaUtil_InitializeX86PlainConverters @52

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@ -1,7 +1,7 @@
#ifndef PORTAUDIO_H
#define PORTAUDIO_H
/*
* $Id$
* $Id: portaudio.h 1670 2011-05-04 16:37:52Z rob_bielik $
* PortAudio Portable Real-Time Audio Library
* PortAudio API Header File
* Latest version available at: http://www.portaudio.com/
@ -121,9 +121,17 @@ const char *Pa_GetErrorText( PaError errorCode );
Pairs of calls to Pa_Initialize()/Pa_Terminate() may overlap, and are not
required to be fully nested.
Note that if Pa_Initialize() returns an error code, Pa_Terminate() should
If Pa_Initialize() returns an error code, Pa_Terminate() should
NOT be called.
@note The device list returned by Pa_GetDeviceCount() et al. is frozen
at the time Pa_Initialize() is called, and not updated dynamically, even if
hardware devices (e.g. USB or firewire devices) are connected or disconnected
during the course of the program's lifetime. If it is required to re-scan the
list of devices, one must call Pa_UpdateAvailableDeviceList() or, completely
uninitialize PortAudio using Pa_Terminate(), and then reinitialize it by calling
Pa_Initialize().
@return paNoError if successful, otherwise an error code indicating the cause
of failure.
@ -397,6 +405,20 @@ PaDeviceIndex Pa_GetDefaultInputDevice( void );
*/
PaDeviceIndex Pa_GetDefaultOutputDevice( void );
/** Update the list of available devices to match currently available hardware devices.
PortAudio's list of available devices is usually frozen at the time Pa_Initialize() is
called. Pa_UpdateAvailableDeviceList() may be called to refresh PortAudio's list
of available devices at any time while PortAudio is initialized.
@note Open streams will not be affected by calls to this function, but
any previously returned PaDeviceInfo pointers are invalidated once this
function is called.
@return an error code indicating whether the device refresh was successful.
*/
PaError Pa_UpdateAvailableDeviceList( void );
/** The type used to represent monotonic time in seconds. PaTime is
used for the fields of the PaStreamCallbackTimeInfo argument to the
@ -1143,6 +1165,13 @@ void Pa_Sleep( long msec );
typedef void PaDevicesChangedCallback( void *userData );
PaError Pa_SetDevicesChangedCallback( void *userData, PaStreamFinishedCallback* devicesChangedCallback );
#ifdef __cplusplus
}
#endif /* __cplusplus */

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@ -1,5 +1,5 @@
/*
* $Id$
* $Id: pa_converters.c 1661 2011-04-28 18:54:46Z rob_bielik $
* Portable Audio I/O Library sample conversion mechanism
*
* Based on the Open Source API proposed by Ross Bencina

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@ -1,5 +1,5 @@
/*
* $Id$
* $Id: pa_front.c 1673 2011-05-06 04:40:22Z rob_bielik $
* Portable Audio I/O Library Multi-Host API front end
* Validate function parameters and manage multiple host APIs.
*
@ -80,7 +80,8 @@
#define PA_VERSION_ 1899
#define PA_VERSION_TEXT_ "PortAudio V19-devel (built " __DATE__ " " __TIME__ ")"
extern void PaUtil_InitializeHotPlug();
extern void PaUtil_TerminateHotPlug();
int Pa_GetVersion( void )
@ -113,16 +114,26 @@ void PaUtil_SetLastHostErrorInfo( PaHostApiTypeId hostApiType, long errorCode,
}
typedef struct _PaInternalInfo
{
PaUtilHostApiRepresentation **hostApis_;
int hostApisCount_;
int initializationCount_;
int deviceCount_;
static PaUtilHostApiRepresentation **hostApis_ = 0;
static int hostApisCount_ = 0;
static int initializationCount_ = 0;
static int deviceCount_ = 0;
PaUtilStreamRepresentation *firstOpenStream_;
PaUtilStreamRepresentation *firstOpenStream_ = NULL;
PaDevicesChangedCallback* devicesChangedCallback_;
void* devicesChangedCallbackUserData_;
} PaInternalInfo;
static PaInternalInfo paInternalInfo_ = {0};
#define PA_IS_INITIALISED_ (initializationCount_ != 0)
#define PA_IS_INITIALISED_ (paInternalInfo_.initializationCount_ != 0)
static int CountHostApiInitializers( void )
@ -140,17 +151,17 @@ static void TerminateHostApis( void )
/* terminate in reverse order from initialization */
PA_DEBUG(("TerminateHostApis in \n"));
while( hostApisCount_ > 0 )
while( paInternalInfo_.hostApisCount_ > 0 )
{
--hostApisCount_;
hostApis_[hostApisCount_]->Terminate( hostApis_[hostApisCount_] );
--paInternalInfo_.hostApisCount_;
paInternalInfo_.hostApis_[paInternalInfo_.hostApisCount_]->Terminate( paInternalInfo_.hostApis_[paInternalInfo_.hostApisCount_] );
}
hostApisCount_ = 0;
deviceCount_ = 0;
paInternalInfo_.hostApisCount_ = 0;
paInternalInfo_.deviceCount_ = 0;
if( hostApis_ != 0 )
PaUtil_FreeMemory( hostApis_ );
hostApis_ = 0;
if( paInternalInfo_.hostApis_ != 0 )
PaUtil_FreeMemory( paInternalInfo_.hostApis_ );
paInternalInfo_.hostApis_ = 0;
PA_DEBUG(("TerminateHostApis out\n"));
}
@ -163,33 +174,33 @@ static PaError InitializeHostApis( void )
initializerCount = CountHostApiInitializers();
hostApis_ = (PaUtilHostApiRepresentation**)PaUtil_AllocateMemory(
paInternalInfo_.hostApis_ = (PaUtilHostApiRepresentation**)PaUtil_AllocateMemory(
sizeof(PaUtilHostApiRepresentation*) * initializerCount );
if( !hostApis_ )
if( !paInternalInfo_.hostApis_ )
{
result = paInsufficientMemory;
goto error;
}
hostApisCount_ = 0;
deviceCount_ = 0;
paInternalInfo_.hostApisCount_ = 0;
paInternalInfo_.deviceCount_ = 0;
baseDeviceIndex = 0;
for( i=0; i< initializerCount; ++i )
{
hostApis_[hostApisCount_] = NULL;
paInternalInfo_.hostApis_[paInternalInfo_.hostApisCount_] = NULL;
PA_DEBUG(( "before paHostApiInitializers[%d].\n",i));
result = paHostApiInitializers[i]( &hostApis_[hostApisCount_], hostApisCount_ );
result = paHostApiInitializers[i]( &paInternalInfo_.hostApis_[paInternalInfo_.hostApisCount_], paInternalInfo_.hostApisCount_ );
if( result != paNoError )
goto error;
PA_DEBUG(( "after paHostApiInitializers[%d].\n",i));
if( hostApis_[hostApisCount_] )
if( paInternalInfo_.hostApis_[paInternalInfo_.hostApisCount_] )
{
PaUtilHostApiRepresentation* hostApi = hostApis_[hostApisCount_];
PaUtilHostApiRepresentation* hostApi = paInternalInfo_.hostApis_[paInternalInfo_.hostApisCount_];
assert( hostApi->info.defaultInputDevice < hostApi->info.deviceCount );
assert( hostApi->info.defaultOutputDevice < hostApi->info.deviceCount );
@ -202,9 +213,9 @@ static PaError InitializeHostApis( void )
hostApi->info.defaultOutputDevice += baseDeviceIndex;
baseDeviceIndex += hostApi->info.deviceCount;
deviceCount_ += hostApi->info.deviceCount;
paInternalInfo_.deviceCount_ += hostApi->info.deviceCount;
++hostApisCount_;
++paInternalInfo_.hostApisCount_;
}
}
@ -233,15 +244,15 @@ static int FindHostApi( PaDeviceIndex device, int *hostSpecificDeviceIndex )
if( device < 0 )
return -1;
while( i < hostApisCount_
&& device >= hostApis_[i]->info.deviceCount )
while( i < paInternalInfo_.hostApisCount_
&& device >= paInternalInfo_.hostApis_[i]->info.deviceCount )
{
device -= hostApis_[i]->info.deviceCount;
device -= paInternalInfo_.hostApis_[i]->info.deviceCount;
++i;
}
if( i >= hostApisCount_ )
if( i >= paInternalInfo_.hostApisCount_ )
return -1;
if( hostSpecificDeviceIndex )
@ -253,15 +264,15 @@ static int FindHostApi( PaDeviceIndex device, int *hostSpecificDeviceIndex )
static void AddOpenStream( PaStream* stream )
{
((PaUtilStreamRepresentation*)stream)->nextOpenStream = firstOpenStream_;
firstOpenStream_ = (PaUtilStreamRepresentation*)stream;
((PaUtilStreamRepresentation*)stream)->nextOpenStream = paInternalInfo_.firstOpenStream_;
paInternalInfo_.firstOpenStream_ = (PaUtilStreamRepresentation*)stream;
}
static void RemoveOpenStream( PaStream* stream )
{
PaUtilStreamRepresentation *previous = NULL;
PaUtilStreamRepresentation *current = firstOpenStream_;
PaUtilStreamRepresentation *current = paInternalInfo_.firstOpenStream_;
while( current != NULL )
{
@ -269,7 +280,7 @@ static void RemoveOpenStream( PaStream* stream )
{
if( previous == NULL )
{
firstOpenStream_ = current->nextOpenStream;
paInternalInfo_.firstOpenStream_ = current->nextOpenStream;
}
else
{
@ -291,8 +302,8 @@ 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_ );
while( paInternalInfo_.firstOpenStream_ != NULL )
Pa_CloseStream( paInternalInfo_.firstOpenStream_ );
}
@ -304,7 +315,7 @@ PaError Pa_Initialize( void )
if( PA_IS_INITIALISED_ )
{
++initializationCount_;
++paInternalInfo_.initializationCount_;
result = paNoError;
}
else
@ -315,9 +326,12 @@ PaError Pa_Initialize( void )
PaUtil_InitializeClock();
PaUtil_ResetTraceMessages();
/* Initialize hot plug here, so all its internal info is setup */
PaUtil_InitializeHotPlug();
result = InitializeHostApis();
if( result == paNoError )
++initializationCount_;
++paInternalInfo_.initializationCount_;
}
PA_LOGAPI_EXIT_PAERROR( "Pa_Initialize", result );
@ -334,12 +348,14 @@ PaError Pa_Terminate( void )
if( PA_IS_INITIALISED_ )
{
if( --initializationCount_ == 0 )
if( --paInternalInfo_.initializationCount_ == 0 )
{
CloseOpenStreams();
TerminateHostApis();
PaUtil_TerminateHotPlug();
PaUtil_DumpTraceMessages();
}
result = paNoError;
@ -425,9 +441,9 @@ PaHostApiIndex Pa_HostApiTypeIdToHostApiIndex( PaHostApiTypeId type )
{
result = paHostApiNotFound;
for( i=0; i < hostApisCount_; ++i )
for( i=0; i < paInternalInfo_.hostApisCount_; ++i )
{
if( hostApis_[i]->info.type == type )
if( paInternalInfo_.hostApis_[i]->info.type == type )
{
result = i;
break;
@ -455,11 +471,11 @@ PaError PaUtil_GetHostApiRepresentation( struct PaUtilHostApiRepresentation **ho
{
result = paHostApiNotFound;
for( i=0; i < hostApisCount_; ++i )
for( i=0; i < paInternalInfo_.hostApisCount_; ++i )
{
if( hostApis_[i]->info.type == type )
if( paInternalInfo_.hostApis_[i]->info.type == type )
{
*hostApi = hostApis_[i];
*hostApi = paInternalInfo_.hostApis_[i];
result = paNoError;
break;
}
@ -504,7 +520,7 @@ PaHostApiIndex Pa_GetHostApiCount( void )
}
else
{
result = hostApisCount_;
result = paInternalInfo_.hostApisCount_;
}
PA_LOGAPI_EXIT_PAERROR_OR_T_RESULT( "Pa_GetHostApiCount", "PaHostApiIndex: %d", result );
@ -530,7 +546,7 @@ PaHostApiIndex Pa_GetDefaultHostApi( void )
/* internal consistency check: make sure that the default host api
index is within range */
if( result < 0 || result >= hostApisCount_ )
if( result < 0 || result >= paInternalInfo_.hostApisCount_ )
{
result = paInternalError;
}
@ -557,7 +573,7 @@ const PaHostApiInfo* Pa_GetHostApiInfo( PaHostApiIndex hostApi )
PA_LOGAPI(("\tPaHostApiInfo*: NULL [ PortAudio not initialized ]\n" ));
}
else if( hostApi < 0 || hostApi >= hostApisCount_ )
else if( hostApi < 0 || hostApi >= paInternalInfo_.hostApisCount_ )
{
info = NULL;
@ -567,7 +583,7 @@ const PaHostApiInfo* Pa_GetHostApiInfo( PaHostApiIndex hostApi )
}
else
{
info = &hostApis_[hostApi]->info;
info = &paInternalInfo_.hostApis_[hostApi]->info;
PA_LOGAPI(("Pa_GetHostApiInfo returned:\n" ));
PA_LOGAPI(("\tPaHostApiInfo*: 0x%p\n", info ));
@ -597,20 +613,20 @@ PaDeviceIndex Pa_HostApiDeviceIndexToDeviceIndex( PaHostApiIndex hostApi, int ho
}
else
{
if( hostApi < 0 || hostApi >= hostApisCount_ )
if( hostApi < 0 || hostApi >= paInternalInfo_.hostApisCount_ )
{
result = paInvalidHostApi;
}
else
{
if( hostApiDeviceIndex < 0 ||
hostApiDeviceIndex >= hostApis_[hostApi]->info.deviceCount )
hostApiDeviceIndex >= paInternalInfo_.hostApis_[hostApi]->info.deviceCount )
{
result = paInvalidDevice;
}
else
{
result = hostApis_[hostApi]->privatePaFrontInfo.baseDeviceIndex + hostApiDeviceIndex;
result = paInternalInfo_.hostApis_[hostApi]->privatePaFrontInfo.baseDeviceIndex + hostApiDeviceIndex;
}
}
}
@ -633,7 +649,7 @@ PaDeviceIndex Pa_GetDeviceCount( void )
}
else
{
result = deviceCount_;
result = paInternalInfo_.deviceCount_;
}
PA_LOGAPI_EXIT_PAERROR_OR_T_RESULT( "Pa_GetDeviceCount", "PaDeviceIndex: %d", result );
@ -656,7 +672,7 @@ PaDeviceIndex Pa_GetDefaultInputDevice( void )
}
else
{
result = hostApis_[hostApi]->info.defaultInputDevice;
result = paInternalInfo_.hostApis_[hostApi]->info.defaultInputDevice;
}
PA_LOGAPI_EXIT_T( "Pa_GetDefaultInputDevice", "PaDeviceIndex: %d", result );
@ -679,7 +695,7 @@ PaDeviceIndex Pa_GetDefaultOutputDevice( void )
}
else
{
result = hostApis_[hostApi]->info.defaultOutputDevice;
result = paInternalInfo_.hostApis_[hostApi]->info.defaultOutputDevice;
}
PA_LOGAPI_EXIT_T( "Pa_GetDefaultOutputDevice", "PaDeviceIndex: %d", result );
@ -688,6 +704,117 @@ PaDeviceIndex Pa_GetDefaultOutputDevice( void )
}
PaError Pa_UpdateAvailableDeviceList( void )
{
PaError result = paNoError;
void **scanResults = NULL;
int *deviceCounts = NULL;
int i = 0;
PA_LOGAPI_ENTER( "Pa_UpdateAvailableDeviceList" );
if( !PA_IS_INITIALISED_ )
{
result = paNotInitialized;
goto done;
}
/* Allocate data structures used in 2-stage commit */
scanResults = (void **) PaUtil_AllocateMemory( sizeof(void*) * paInternalInfo_.hostApisCount_ );
if( !scanResults )
{
result = paInsufficientMemory;
goto done;
}
deviceCounts = ( int * ) PaUtil_AllocateMemory( sizeof( int ) * paInternalInfo_.hostApisCount_ );
if( !deviceCounts )
{
result = paInsufficientMemory;
goto done;
}
/* Phase 1: Perform a scan of new devices */
for( i = 0 ; i < paInternalInfo_.hostApisCount_ ; ++i )
{
PaUtilHostApiRepresentation *hostApi = paInternalInfo_.hostApis_[i];
if( hostApi->ScanDeviceInfos == NULL )
continue;
PA_DEBUG(( "Scanning new device list for host api %d.\n",i));
if( hostApi->ScanDeviceInfos( hostApi, i, &scanResults[ i ], &deviceCounts[ i ] ) != paNoError )
break;
}
/* Check the result of the scan operation */
if( i < paInternalInfo_.hostApisCount_ )
{
/* If failure, rollback the scan changes back to original state */
int j = 0;
for( j = 0 ; j < i ; ++j )
{
PaUtilHostApiRepresentation *hostApi = paInternalInfo_.hostApis_[j];
if( hostApi->DisposeDeviceInfos == NULL )
continue;
PA_DEBUG(( "Performing rollback for device list scan for host api %d.\n",i));
hostApi->DisposeDeviceInfos( hostApi, scanResults[ j ], deviceCounts[ j ] );
}
}
else
{
int baseDeviceIndex = 0;
paInternalInfo_.deviceCount_ = 0;
/* Otherwise, commit the scan changes to each back-end */
for( i = 0 ; i < paInternalInfo_.hostApisCount_ ; ++i )
{
PaUtilHostApiRepresentation *hostApi = paInternalInfo_.hostApis_[i];
if( hostApi->CommitDeviceInfos == NULL )
{
/* Not yet implemented for this backend. Just
assume that the baseDeviceIndex and the paInternalInfo_.deviceCount_ are
incremented according to the values in the info */
baseDeviceIndex += hostApi->info.deviceCount;
paInternalInfo_.deviceCount_ += hostApi->info.deviceCount;
continue;
}
PA_DEBUG(( "Committing device list scan for host api %d.\n",i));
if( hostApi->CommitDeviceInfos( hostApi, i, scanResults[ i ], deviceCounts[ i ] ) != paNoError )
{
PA_DEBUG(( "Committing failed (shouldn't happen) %d.\n",i));
result = paInternalError;
goto done;
}
assert( hostApi->info.defaultInputDevice < hostApi->info.deviceCount );
assert( hostApi->info.defaultOutputDevice < hostApi->info.deviceCount );
hostApi->privatePaFrontInfo.baseDeviceIndex = baseDeviceIndex;
if( hostApi->info.defaultInputDevice != paNoDevice )
hostApi->info.defaultInputDevice += baseDeviceIndex;
if( hostApi->info.defaultOutputDevice != paNoDevice )
hostApi->info.defaultOutputDevice += baseDeviceIndex;
baseDeviceIndex += hostApi->info.deviceCount;
paInternalInfo_.deviceCount_ += hostApi->info.deviceCount;
}
}
done:
if( scanResults )
PaUtil_FreeMemory( scanResults );
if( deviceCounts )
PaUtil_FreeMemory( deviceCounts );
return result;
}
const PaDeviceInfo* Pa_GetDeviceInfo( PaDeviceIndex device )
{
int hostSpecificDeviceIndex;
@ -708,7 +835,7 @@ const PaDeviceInfo* Pa_GetDeviceInfo( PaDeviceIndex device )
}
else
{
result = hostApis_[hostApiIndex]->deviceInfos[ hostSpecificDeviceIndex ];
result = paInternalInfo_.hostApis_[hostApiIndex]->deviceInfos[ hostSpecificDeviceIndex ];
PA_LOGAPI(("Pa_GetDeviceInfo returned:\n" ));
PA_LOGAPI(("\tPaDeviceInfo*: 0x%p:\n", result ));
@ -850,7 +977,7 @@ static PaError ValidateOpenStreamParameters(
if( inputHostApiIndex != -1 )
{
*hostApiInputDevice = paUseHostApiSpecificDeviceSpecification;
*hostApi = hostApis_[inputHostApiIndex];
*hostApi = paInternalInfo_.hostApis_[inputHostApiIndex];
}
else
{
@ -864,14 +991,14 @@ static PaError ValidateOpenStreamParameters(
}
else
{
if( inputParameters->device < 0 || inputParameters->device >= deviceCount_ )
if( inputParameters->device < 0 || inputParameters->device >= paInternalInfo_.deviceCount_ )
return paInvalidDevice;
inputHostApiIndex = FindHostApi( inputParameters->device, hostApiInputDevice );
if( inputHostApiIndex < 0 )
return paInternalError;
*hostApi = hostApis_[inputHostApiIndex];
*hostApi = paInternalInfo_.hostApis_[inputHostApiIndex];
if( inputParameters->channelCount <= 0 )
return paInvalidChannelCount;
@ -901,7 +1028,7 @@ static PaError ValidateOpenStreamParameters(
if( outputHostApiIndex != -1 )
{
*hostApiOutputDevice = paUseHostApiSpecificDeviceSpecification;
*hostApi = hostApis_[outputHostApiIndex];
*hostApi = paInternalInfo_.hostApis_[outputHostApiIndex];
}
else
{
@ -915,14 +1042,14 @@ static PaError ValidateOpenStreamParameters(
}
else
{
if( outputParameters->device < 0 || outputParameters->device >= deviceCount_ )
if( outputParameters->device < 0 || outputParameters->device >= paInternalInfo_.deviceCount_ )
return paInvalidDevice;
outputHostApiIndex = FindHostApi( outputParameters->device, hostApiOutputDevice );
if( outputHostApiIndex < 0 )
return paInternalError;
*hostApi = hostApis_[outputHostApiIndex];
*hostApi = paInternalInfo_.hostApis_[outputHostApiIndex];
if( outputParameters->channelCount <= 0 )
return paInvalidChannelCount;
@ -1751,3 +1878,29 @@ PaError Pa_GetSampleSize( PaSampleFormat format )
return (PaError) result;
}
extern void PaUtil_LockHotPlug();
extern void PaUtil_UnlockHotPlug();
PaError Pa_SetDevicesChangedCallback( void *userData, PaStreamFinishedCallback* devicesChangedCallback )
{
PaUtil_LockHotPlug();
paInternalInfo_.devicesChangedCallback_ = devicesChangedCallback;
paInternalInfo_.devicesChangedCallbackUserData_ = userData;
PaUtil_UnlockHotPlug();
return paNoError;
}
/* Called whenever a OS audio device change has been detected */
void PaUtil_DevicesChanged(unsigned state, void* pData)
{
(void)state;
(void)pData;
PaUtil_LockHotPlug();
if (paInternalInfo_.devicesChangedCallback_)
{
(paInternalInfo_.devicesChangedCallback_)(paInternalInfo_.devicesChangedCallbackUserData_);
}
PaUtil_UnlockHotPlug();
}

View file

@ -1,7 +1,7 @@
#ifndef PA_HOSTAPI_H
#define PA_HOSTAPI_H
/*
* $Id$
* $Id: pa_hostapi.h 1664 2011-05-01 16:10:58Z rossb $
* Portable Audio I/O Library
* host api representation
*
@ -275,6 +275,37 @@ typedef struct PaUtilHostApiRepresentation {
const PaStreamParameters *inputParameters,
const PaStreamParameters *outputParameters,
double sampleRate );
/**
Collect current native device information and compute a new device count.
This method should not result in the host API making any changes to its
internal data structures, instead it is the first step in a two-stage commit
process which will be completed only if all host API scans return with no errors.
Some time later the caller will either (1) pass scanResults and newDeviceCount
to CommitDeviceInfos() to complete the transaction, or (2) pass scanResults
and newDeviceCount to DisposeDeviceInfos() to abort the transaction.
*/
PaError (*ScanDeviceInfos)( struct PaUtilHostApiRepresentation *hostApi, PaHostApiIndex index, void **scanResults, int *newDeviceCount );
/**
Replace the previous device information with the device information
passed in as an argument via scanResults. This is the second/final stage of
the two-stage transaction required for updating the available device information.
This function should free any resources associated with the previous device
information.
@FIXME: this function should probably not return an error code as it should not be
permitted to fail.
*/
PaError (*CommitDeviceInfos)( struct PaUtilHostApiRepresentation *hostApi, PaHostApiIndex index, void *scanResults, int deviceCount );
/**
Free device information previously returned by ScanDeviceInfos(). This function
will be called in cases where the update available device info transaction
failed for some reason.
*/
PaError (*DisposeDeviceInfos)( struct PaUtilHostApiRepresentation *hostApi, void *scanResults, int deviceCount );
} PaUtilHostApiRepresentation;

View file

@ -1,5 +1,5 @@
/*
* $Id$
* $Id: pa_process.c 1661 2011-04-28 18:54:46Z rob_bielik $
* Portable Audio I/O Library
* streamCallback <-> host buffer processing adapter
*

View file

@ -1,5 +1,5 @@
/*
* $Id$
* $Id: pa_linux_alsa.c 1661 2011-04-28 18:54:46Z rob_bielik $
* PortAudio Portable Real-Time Audio Library
* Latest Version at: http://www.portaudio.com
* ALSA implementation by Joshua Haberman and Arve Knudsen

View file

@ -1,5 +1,5 @@
/*
* $Id$
* $Id: pa_win_ds.c 1672 2011-05-04 20:11:30Z rossb $
* Portable Audio I/O Library DirectSound implementation
*
* Authors: Phil Burk, Robert Marsanyi & Ross Bencina
@ -75,10 +75,6 @@
#include "pa_win_waveformat.h"
#include "pa_win_wdmks_utils.h"
#ifndef PA_USE_WMME
#error "Portaudio internal error: PA_USE_WMME=0/1 not defined. pa_hostapi.h should ensure that it is."
#endif
#if (defined(WIN32) && (defined(_MSC_VER) && (_MSC_VER >= 1200))) /* MSC version 6 and above */
#pragma comment( lib, "dsound.lib" )
#pragma comment( lib, "winmm.lib" )
@ -141,6 +137,9 @@ static PaError IsFormatSupported( struct PaUtilHostApiRepresentation *hostApi,
const PaStreamParameters *inputParameters,
const PaStreamParameters *outputParameters,
double sampleRate );
static PaError ScanDeviceInfos( struct PaUtilHostApiRepresentation *hostApi, PaHostApiIndex index, void **newDeviceInfos, int *newDeviceCount );
static PaError CommitDeviceInfos( struct PaUtilHostApiRepresentation *hostApi, PaHostApiIndex index, void *deviceInfos, int deviceCount );
static PaError DisposeDeviceInfos( struct PaUtilHostApiRepresentation *hostApi, void *deviceInfos, int deviceCount );
static PaError CloseStream( PaStream* stream );
static PaError StartStream( PaStream *stream );
static PaError StopStream( PaStream *stream );
@ -249,6 +248,12 @@ typedef struct PaWinDsStream
volatile int abortProcessing; /* stop thread immediately */
} PaWinDsStream;
typedef struct PaWinDsScanDeviceInfosResults{ /* used for tranferring device infos during scanning / rescanning */
PaDeviceInfo **deviceInfos;
PaDeviceIndex defaultInputDevice;
PaDeviceIndex defaultOutputDevice;
} PaWinDsScanDeviceInfosResults;
/************************************************************************************
** Duplicate the input string using the allocations allocator.
@ -293,7 +298,7 @@ typedef struct DSDeviceNameAndGUIDVector{
int count;
int free;
DSDeviceNameAndGUID *items; // Allocated using LocalAlloc()
DSDeviceNameAndGUID *items; /* Allocated using LocalAlloc() */
} DSDeviceNameAndGUIDVector;
typedef struct DSDeviceNamesAndGUIDs{
@ -590,28 +595,15 @@ static double defaultSampleRateSearchOrder_[] =
** The device will not be added to the device list if any errors are encountered.
*/
static PaError AddOutputDeviceInfoFromDirectSound(
PaWinDsHostApiRepresentation *winDsHostApi, char *name, LPGUID lpGUID, char *pnpInterface )
PaWinDsDeviceInfo *winDsDeviceInfo, char *name, LPGUID lpGUID, char *pnpInterface )
{
PaUtilHostApiRepresentation *hostApi = &winDsHostApi->inheritedHostApiRep;
PaWinDsDeviceInfo *winDsDeviceInfo = (PaWinDsDeviceInfo*) hostApi->deviceInfos[hostApi->info.deviceCount];
PaDeviceInfo *deviceInfo = &winDsDeviceInfo->inheritedDeviceInfo;
HRESULT hr;
LPDIRECTSOUND lpDirectSound;
LPDIRECTSOUND lpDirectSound = NULL;
DSCAPS caps;
int deviceOK = TRUE;
PaError result = paNoError;
int i;
/* Copy GUID to the device info structure. Set pointer. */
if( lpGUID == NULL )
{
winDsDeviceInfo->lpGUID = NULL;
}
else
{
memcpy( &winDsDeviceInfo->guid, lpGUID, sizeof(GUID) );
winDsDeviceInfo->lpGUID = &winDsDeviceInfo->guid;
}
if( lpGUID )
{
@ -619,7 +611,7 @@ static PaError AddOutputDeviceInfoFromDirectSound(
IsEqualGUID (&IID_IRolandVSCEmulated2,lpGUID) )
{
PA_DEBUG(("BLACKLISTED: %s \n",name));
return paNoError;
return paInvalidDevice;
}
}
@ -627,23 +619,6 @@ static PaError AddOutputDeviceInfoFromDirectSound(
Note that using CoCreateInstance doesn't work on windows CE.
*/
hr = paWinDsDSoundEntryPoints.DirectSoundCreate( lpGUID, &lpDirectSound, NULL );
/** try using CoCreateInstance because DirectSoundCreate was hanging under
some circumstances - note this was probably related to the
#define BOOL short bug which has now been fixed
@todo delete this comment and the following code once we've ensured
there is no bug.
*/
/*
hr = CoCreateInstance( &CLSID_DirectSound, NULL, CLSCTX_INPROC_SERVER,
&IID_IDirectSound, (void**)&lpDirectSound );
if( hr == S_OK )
{
hr = IDirectSound_Initialize( lpDirectSound, lpGUID );
}
*/
if( hr != DS_OK )
{
if (hr == DSERR_ALLOCATED)
@ -664,7 +639,8 @@ static PaError AddOutputDeviceInfoFromDirectSound(
lpGUID->Data4[6],
lpGUID->Data4[7]));
deviceOK = FALSE;
result = paUnanticipatedHostError;
goto error;
}
else
{
@ -675,7 +651,9 @@ static PaError AddOutputDeviceInfoFromDirectSound(
if( hr != DS_OK )
{
DBUG(("Cannot GetCaps() for DirectSound device %s. Result = 0x%x\n", name, hr ));
deviceOK = FALSE;
result = paUnanticipatedHostError;
goto error;
}
else
{
@ -684,12 +662,11 @@ static PaError AddOutputDeviceInfoFromDirectSound(
if( caps.dwFlags & DSCAPS_EMULDRIVER )
{
/* If WMME supported, then reject Emulated drivers because they are lousy. */
deviceOK = FALSE;
result = paInvalidDevice;
goto error;
}
#endif
if( deviceOK )
{
deviceInfo->maxInputChannels = 0;
winDsDeviceInfo->deviceInputChannelCountIsKnown = 1;
@ -817,20 +794,28 @@ static PaError AddOutputDeviceInfoFromDirectSound(
//printf( "min %d max %d\n", caps.dwMinSecondarySampleRate, caps.dwMaxSecondarySampleRate );
// dwFlags | DSCAPS_CONTINUOUSRATE
}
}
IDirectSound_Release( lpDirectSound );
}
if( deviceOK )
/* Copy GUID to the device info structure. Set pointer. */
if( lpGUID == NULL )
{
winDsDeviceInfo->lpGUID = NULL;
}
else
{
memcpy( &winDsDeviceInfo->guid, lpGUID, sizeof(GUID) );
winDsDeviceInfo->lpGUID = &winDsDeviceInfo->guid;
}
deviceInfo->name = name;
if( lpGUID == NULL )
hostApi->info.defaultOutputDevice = hostApi->info.deviceCount;
return result;
hostApi->info.deviceCount++;
}
error:
if( lpDirectSound )
IDirectSound_Release( lpDirectSound );
return result;
}
@ -844,44 +829,20 @@ static PaError AddOutputDeviceInfoFromDirectSound(
** The device will not be added to the device list if any errors are encountered.
*/
static PaError AddInputDeviceInfoFromDirectSoundCapture(
PaWinDsHostApiRepresentation *winDsHostApi, char *name, LPGUID lpGUID, char *pnpInterface )
PaWinDsDeviceInfo *winDsDeviceInfo, char *name, LPGUID lpGUID, char *pnpInterface )
{
PaUtilHostApiRepresentation *hostApi = &winDsHostApi->inheritedHostApiRep;
PaWinDsDeviceInfo *winDsDeviceInfo = (PaWinDsDeviceInfo*) hostApi->deviceInfos[hostApi->info.deviceCount];
PaDeviceInfo *deviceInfo = &winDsDeviceInfo->inheritedDeviceInfo;
HRESULT hr;
LPDIRECTSOUNDCAPTURE lpDirectSoundCapture;
LPDIRECTSOUNDCAPTURE lpDirectSoundCapture = NULL;
DSCCAPS caps;
int deviceOK = TRUE;
PaError result = paNoError;
/* Copy GUID to the device info structure. Set pointer. */
if( lpGUID == NULL )
{
winDsDeviceInfo->lpGUID = NULL;
}
else
{
winDsDeviceInfo->lpGUID = &winDsDeviceInfo->guid;
memcpy( &winDsDeviceInfo->guid, lpGUID, sizeof(GUID) );
}
hr = paWinDsDSoundEntryPoints.DirectSoundCaptureCreate( lpGUID, &lpDirectSoundCapture, NULL );
/** try using CoCreateInstance because DirectSoundCreate was hanging under
some circumstances - note this was probably related to the
#define BOOL short bug which has now been fixed
@todo delete this comment and the following code once we've ensured
there is no bug.
*/
/*
hr = CoCreateInstance( &CLSID_DirectSoundCapture, NULL, CLSCTX_INPROC_SERVER,
&IID_IDirectSoundCapture, (void**)&lpDirectSoundCapture );
*/
if( hr != DS_OK )
{
DBUG(("Cannot create Capture for %s. Result = 0x%x\n", name, hr ));
deviceOK = FALSE;
result = paUnanticipatedHostError;
goto error;
}
else
{
@ -892,7 +853,8 @@ static PaError AddInputDeviceInfoFromDirectSoundCapture(
if( hr != DS_OK )
{
DBUG(("Cannot GetCaps() for Capture device %s. Result = 0x%x\n", name, hr ));
deviceOK = FALSE;
result = paUnanticipatedHostError;
goto error;
}
else
{
@ -900,12 +862,11 @@ static PaError AddInputDeviceInfoFromDirectSoundCapture(
if( caps.dwFlags & DSCAPS_EMULDRIVER )
{
/* If WMME supported, then reject Emulated drivers because they are lousy. */
deviceOK = FALSE;
result = paInvalidDevice;
goto error;
}
#endif
if( deviceOK )
{
deviceInfo->maxInputChannels = caps.dwChannels;
winDsDeviceInfo->deviceInputChannelCountIsKnown = 1;
@ -989,20 +950,29 @@ static PaError AddInputDeviceInfoFromDirectSoundCapture(
}
else deviceInfo->defaultSampleRate = 0.;
}
}
IDirectSoundCapture_Release( lpDirectSoundCapture );
}
if( deviceOK )
/* Copy GUID to the device info structure. Set pointer. */
if( lpGUID == NULL )
{
winDsDeviceInfo->lpGUID = NULL;
}
else
{
winDsDeviceInfo->lpGUID = &winDsDeviceInfo->guid;
memcpy( &winDsDeviceInfo->guid, lpGUID, sizeof(GUID) );
}
deviceInfo->name = name;
if( lpGUID == NULL )
hostApi->info.defaultInputDevice = hostApi->info.deviceCount;
return result;
hostApi->info.deviceCount++;
}
error:
if( lpDirectSoundCapture )
IDirectSoundCapture_Release( lpDirectSoundCapture );
return result;
}
@ -1012,12 +982,10 @@ static PaError AddInputDeviceInfoFromDirectSoundCapture(
PaError PaWinDs_Initialize( PaUtilHostApiRepresentation **hostApi, PaHostApiIndex hostApiIndex )
{
PaError result = paNoError;
int i, deviceCount;
int deviceCount;
PaWinDsHostApiRepresentation *winDsHostApi;
DSDeviceNamesAndGUIDs deviceNamesAndGUIDs;
PaWinDsDeviceInfo *deviceInfoArray;
char comWasInitialized = 0;
void *scanResults = 0;
/*
If COM is already initialized CoInitialize will either return
@ -1034,11 +1002,6 @@ PaError PaWinDs_Initialize( PaUtilHostApiRepresentation **hostApi, PaHostApiInde
if( hr != RPC_E_CHANGED_MODE )
comWasInitialized = 1;
/* initialise guid vectors so they can be safely deleted on error */
deviceNamesAndGUIDs.winDsHostApi = NULL;
deviceNamesAndGUIDs.inputNamesAndGUIDs.items = NULL;
deviceNamesAndGUIDs.outputNamesAndGUIDs.items = NULL;
PaWinDs_InitializeDSoundEntryPoints();
winDsHostApi = (PaWinDsHostApiRepresentation*)PaUtil_AllocateMemory( sizeof(PaWinDsHostApiRepresentation) );
@ -1062,109 +1025,25 @@ PaError PaWinDs_Initialize( PaUtilHostApiRepresentation **hostApi, PaHostApiInde
(*hostApi)->info.type = paDirectSound;
(*hostApi)->info.name = "Windows DirectSound";
/* these are all updated by CommitDeviceInfos() */
(*hostApi)->info.deviceCount = 0;
(*hostApi)->info.defaultInputDevice = paNoDevice;
(*hostApi)->info.defaultOutputDevice = paNoDevice;
(*hostApi)->deviceInfos = 0;
/* DSound - enumerate devices to count them and to gather their GUIDs */
result = InitializeDSDeviceNameAndGUIDVector( &deviceNamesAndGUIDs.inputNamesAndGUIDs, winDsHostApi->allocations );
if( result != paNoError )
goto error;
result = InitializeDSDeviceNameAndGUIDVector( &deviceNamesAndGUIDs.outputNamesAndGUIDs, winDsHostApi->allocations );
if( result != paNoError )
goto error;
paWinDsDSoundEntryPoints.DirectSoundCaptureEnumerateA( (LPDSENUMCALLBACK)CollectGUIDsProc, (void *)&deviceNamesAndGUIDs.inputNamesAndGUIDs );
paWinDsDSoundEntryPoints.DirectSoundEnumerateA( (LPDSENUMCALLBACK)CollectGUIDsProc, (void *)&deviceNamesAndGUIDs.outputNamesAndGUIDs );
if( deviceNamesAndGUIDs.inputNamesAndGUIDs.enumerationError != paNoError )
{
result = deviceNamesAndGUIDs.inputNamesAndGUIDs.enumerationError;
goto error;
}
if( deviceNamesAndGUIDs.outputNamesAndGUIDs.enumerationError != paNoError )
{
result = deviceNamesAndGUIDs.outputNamesAndGUIDs.enumerationError;
goto error;
}
deviceCount = deviceNamesAndGUIDs.inputNamesAndGUIDs.count + deviceNamesAndGUIDs.outputNamesAndGUIDs.count;
#ifdef PAWIN_USE_WDMKS_DEVICE_INFO
if( deviceCount > 0 )
{
deviceNamesAndGUIDs.winDsHostApi = winDsHostApi;
FindDevicePnpInterfaces( &deviceNamesAndGUIDs );
}
#endif /* PAWIN_USE_WDMKS_DEVICE_INFO */
if( deviceCount > 0 )
{
/* allocate array for pointers to PaDeviceInfo structs */
(*hostApi)->deviceInfos = (PaDeviceInfo**)PaUtil_GroupAllocateMemory(
winDsHostApi->allocations, sizeof(PaDeviceInfo*) * deviceCount );
if( !(*hostApi)->deviceInfos )
{
result = paInsufficientMemory;
goto error;
}
/* allocate all PaDeviceInfo structs in a contiguous block */
deviceInfoArray = (PaWinDsDeviceInfo*)PaUtil_GroupAllocateMemory(
winDsHostApi->allocations, sizeof(PaWinDsDeviceInfo) * deviceCount );
if( !deviceInfoArray )
{
result = paInsufficientMemory;
goto error;
}
for( i=0; i < deviceCount; ++i )
{
PaDeviceInfo *deviceInfo = &deviceInfoArray[i].inheritedDeviceInfo;
deviceInfo->structVersion = 2;
deviceInfo->hostApi = hostApiIndex;
deviceInfo->name = 0;
(*hostApi)->deviceInfos[i] = deviceInfo;
}
for( i=0; i < deviceNamesAndGUIDs.inputNamesAndGUIDs.count; ++i )
{
result = AddInputDeviceInfoFromDirectSoundCapture( winDsHostApi,
deviceNamesAndGUIDs.inputNamesAndGUIDs.items[i].name,
deviceNamesAndGUIDs.inputNamesAndGUIDs.items[i].lpGUID,
deviceNamesAndGUIDs.inputNamesAndGUIDs.items[i].pnpInterface );
if( result != paNoError )
goto error;
}
for( i=0; i < deviceNamesAndGUIDs.outputNamesAndGUIDs.count; ++i )
{
result = AddOutputDeviceInfoFromDirectSound( winDsHostApi,
deviceNamesAndGUIDs.outputNamesAndGUIDs.items[i].name,
deviceNamesAndGUIDs.outputNamesAndGUIDs.items[i].lpGUID,
deviceNamesAndGUIDs.outputNamesAndGUIDs.items[i].pnpInterface );
if( result != paNoError )
goto error;
}
}
result = TerminateDSDeviceNameAndGUIDVector( &deviceNamesAndGUIDs.inputNamesAndGUIDs );
if( result != paNoError )
goto error;
result = TerminateDSDeviceNameAndGUIDVector( &deviceNamesAndGUIDs.outputNamesAndGUIDs );
result = ScanDeviceInfos( &winDsHostApi->inheritedHostApiRep, hostApiIndex, &scanResults, &deviceCount );
if( result != paNoError )
goto error;
/* FIXME for now we ignore the result of CommitDeviceInfos(), it should probably be an atomic non-failing operation */
CommitDeviceInfos( &winDsHostApi->inheritedHostApiRep, hostApiIndex, scanResults, deviceCount );
(*hostApi)->Terminate = Terminate;
(*hostApi)->OpenStream = OpenStream;
(*hostApi)->IsFormatSupported = IsFormatSupported;
(*hostApi)->ScanDeviceInfos = ScanDeviceInfos;
(*hostApi)->CommitDeviceInfos = CommitDeviceInfos;
(*hostApi)->DisposeDeviceInfos = DisposeDeviceInfos;
PaUtil_InitializeStreamInterface( &winDsHostApi->callbackStreamInterface, CloseStream, StartStream,
StopStream, AbortStream, IsStreamStopped, IsStreamActive,
@ -1191,9 +1070,6 @@ error:
PaUtil_FreeMemory( winDsHostApi );
}
TerminateDSDeviceNameAndGUIDVector( &deviceNamesAndGUIDs.inputNamesAndGUIDs );
TerminateDSDeviceNameAndGUIDVector( &deviceNamesAndGUIDs.outputNamesAndGUIDs );
if( comWasInitialized )
CoUninitialize();
@ -1369,6 +1245,231 @@ static PaError IsFormatSupported( struct PaUtilHostApiRepresentation *hostApi,
return paFormatIsSupported;
}
/***********************************************************************************/
static PaError ScanDeviceInfos( struct PaUtilHostApiRepresentation *hostApi, PaHostApiIndex hostApiIndex, void **scanResults, int *newDeviceCount )
{
PaWinDsHostApiRepresentation *winDsHostApi = (PaWinDsHostApiRepresentation*)hostApi;
PaWinDsDeviceInfo *deviceInfoArray;
char comWasInitialized = winDsHostApi->comWasInitialized;
PaError result = paNoError;
PaWinDsScanDeviceInfosResults *outArgument = 0;
DSDeviceNamesAndGUIDs deviceNamesAndGUIDs;
int i = 0;
int maximumNewDeviceCount = 0;
/* Check preconditions */
if( !comWasInitialized || scanResults == NULL || newDeviceCount == NULL )
return paInternalError;
/* initialize the out params */
*scanResults = NULL;
*newDeviceCount = 0;
/* initialise guid vectors so they can be safely deleted on error */
deviceNamesAndGUIDs.winDsHostApi = NULL;
deviceNamesAndGUIDs.inputNamesAndGUIDs.items = NULL;
deviceNamesAndGUIDs.outputNamesAndGUIDs.items = NULL;
result = InitializeDSDeviceNameAndGUIDVector( &deviceNamesAndGUIDs.inputNamesAndGUIDs, winDsHostApi->allocations );
if( result != paNoError )
goto error;
result = InitializeDSDeviceNameAndGUIDVector( &deviceNamesAndGUIDs.outputNamesAndGUIDs, winDsHostApi->allocations );
if( result != paNoError )
goto error;
deviceNamesAndGUIDs.winDsHostApi = winDsHostApi;
/* DSound - enumerate devices to count them and to gather their GUIDs and device names */
paWinDsDSoundEntryPoints.DirectSoundCaptureEnumerateA( (LPDSENUMCALLBACK)CollectGUIDsProc, (void *)&deviceNamesAndGUIDs.inputNamesAndGUIDs );
if( deviceNamesAndGUIDs.inputNamesAndGUIDs.enumerationError != paNoError )
{
result = deviceNamesAndGUIDs.inputNamesAndGUIDs.enumerationError;
goto error;
}
paWinDsDSoundEntryPoints.DirectSoundEnumerateA( (LPDSENUMCALLBACK)CollectGUIDsProc, (void *)&deviceNamesAndGUIDs.outputNamesAndGUIDs );
if( deviceNamesAndGUIDs.outputNamesAndGUIDs.enumerationError != paNoError )
{
result = deviceNamesAndGUIDs.outputNamesAndGUIDs.enumerationError;
goto error;
}
maximumNewDeviceCount = deviceNamesAndGUIDs.inputNamesAndGUIDs.count +
deviceNamesAndGUIDs.outputNamesAndGUIDs.count;
#ifdef PAWIN_USE_WDMKS_DEVICE_INFO
if( maximumNewDeviceCount > 0 )
{
FindDevicePnpInterfaces( &deviceNamesAndGUIDs );
}
#endif /* PAWIN_USE_WDMKS_DEVICE_INFO */
if( maximumNewDeviceCount > 0 )
{
/* Allocate the out param for all the info we need */
outArgument = (PaWinDsScanDeviceInfosResults *) PaUtil_GroupAllocateMemory(
winDsHostApi->allocations, sizeof(PaWinDsScanDeviceInfosResults) );
if( !outArgument )
{
result = paInsufficientMemory;
goto error;
}
/* allocate array for pointers to PaDeviceInfo structs */
outArgument->deviceInfos = (PaDeviceInfo**)PaUtil_GroupAllocateMemory(
winDsHostApi->allocations, sizeof(PaDeviceInfo*) * maximumNewDeviceCount );
if( !outArgument->deviceInfos )
{
result = paInsufficientMemory;
goto error;
}
/* allocate all PaDeviceInfo structs in a contiguous block */
deviceInfoArray = (PaWinDsDeviceInfo*)PaUtil_GroupAllocateMemory(
winDsHostApi->allocations, sizeof(PaWinDsDeviceInfo) * maximumNewDeviceCount );
if( !deviceInfoArray )
{
result = paInsufficientMemory;
goto error;
}
for( i = 0 ; i < maximumNewDeviceCount; ++i )
{
PaDeviceInfo *deviceInfo = &deviceInfoArray[i].inheritedDeviceInfo;
deviceInfo->structVersion = 2;
deviceInfo->hostApi = hostApiIndex;
deviceInfo->name = 0;
outArgument->deviceInfos[ i ] = deviceInfo;
}
for( i = 0 ; i < deviceNamesAndGUIDs.inputNamesAndGUIDs.count ; ++i )
{
PaWinDsDeviceInfo *winDsDeviceInfo = (PaWinDsDeviceInfo*)outArgument->deviceInfos[*newDeviceCount];
result = AddInputDeviceInfoFromDirectSoundCapture( winDsDeviceInfo,
deviceNamesAndGUIDs.inputNamesAndGUIDs.items[i].name,
deviceNamesAndGUIDs.inputNamesAndGUIDs.items[i].lpGUID,
deviceNamesAndGUIDs.inputNamesAndGUIDs.items[i].pnpInterface );
if( result == paNoError )
{
if( deviceNamesAndGUIDs.inputNamesAndGUIDs.items[i].lpGUID == NULL )
outArgument->defaultInputDevice = *newDeviceCount;
(*newDeviceCount)++;
}
/* ignore error results here and just skip the device */
}
for( i = 0 ; i < deviceNamesAndGUIDs.outputNamesAndGUIDs.count ; ++i )
{
PaWinDsDeviceInfo *winDsDeviceInfo = (PaWinDsDeviceInfo*)outArgument->deviceInfos[*newDeviceCount];
result = AddOutputDeviceInfoFromDirectSound( winDsDeviceInfo,
deviceNamesAndGUIDs.outputNamesAndGUIDs.items[i].name,
deviceNamesAndGUIDs.outputNamesAndGUIDs.items[i].lpGUID,
deviceNamesAndGUIDs.outputNamesAndGUIDs.items[i].pnpInterface );
if( result == paNoError )
{
if( deviceNamesAndGUIDs.outputNamesAndGUIDs.items[i].lpGUID == NULL )
outArgument->defaultOutputDevice = *newDeviceCount;
(*newDeviceCount)++;
}
/* ignore error results here and just skip the device */
}
}
result = TerminateDSDeviceNameAndGUIDVector( &deviceNamesAndGUIDs.inputNamesAndGUIDs );
if( result != paNoError )
goto error;
result = TerminateDSDeviceNameAndGUIDVector( &deviceNamesAndGUIDs.outputNamesAndGUIDs );
if( result != paNoError )
goto error;
*scanResults = outArgument;
return result;
error:
TerminateDSDeviceNameAndGUIDVector( &deviceNamesAndGUIDs.inputNamesAndGUIDs );
TerminateDSDeviceNameAndGUIDVector( &deviceNamesAndGUIDs.outputNamesAndGUIDs );
if( outArgument )
{
if( outArgument->deviceInfos )
{
if( outArgument->deviceInfos[0] )
{
PaUtil_GroupFreeMemory( winDsHostApi->allocations, outArgument->deviceInfos[0] );
}
PaUtil_GroupFreeMemory( winDsHostApi->allocations, outArgument->deviceInfos );
}
}
return result;
}
static PaError CommitDeviceInfos( struct PaUtilHostApiRepresentation *hostApi, PaHostApiIndex index, void *scanResults, int deviceCount )
{
PaWinDsHostApiRepresentation *winDsHostApi = (PaWinDsHostApiRepresentation*)hostApi;
PaError result = paNoError;
int i = 0;
hostApi->info.deviceCount = 0;
hostApi->info.defaultInputDevice = paNoDevice;
hostApi->info.defaultOutputDevice = paNoDevice;
/* Free any old memory which might be in the device info */
if( hostApi->deviceInfos )
{
PaUtil_GroupFreeMemory( winDsHostApi->allocations, hostApi->deviceInfos[0] );
PaUtil_GroupFreeMemory( winDsHostApi->allocations, hostApi->deviceInfos );
hostApi->deviceInfos = NULL;
}
if( scanResults != NULL )
{
PaWinDsScanDeviceInfosResults *scanDeviceInfosResults = ( PaWinDsScanDeviceInfosResults * ) scanResults;
if( deviceCount > 0 )
{
/* use the array allocated in ScanDeviceInfos() as our deviceInfos */
hostApi->deviceInfos = scanDeviceInfosResults->deviceInfos;
hostApi->info.defaultInputDevice = scanDeviceInfosResults->defaultInputDevice;
hostApi->info.defaultOutputDevice = scanDeviceInfosResults->defaultOutputDevice;
hostApi->info.deviceCount = deviceCount;
}
PaUtil_GroupFreeMemory( winDsHostApi->allocations, scanDeviceInfosResults );
}
return result;
}
static PaError DisposeDeviceInfos( struct PaUtilHostApiRepresentation *hostApi, void *scanResults, int deviceCount )
{
PaWinDsHostApiRepresentation *winDsHostApi = (PaWinDsHostApiRepresentation*)hostApi;
if( scanResults != NULL )
{
PaWinDsScanDeviceInfosResults *scanDeviceInfosResults = ( PaWinDsScanDeviceInfosResults * ) scanResults;
if( scanDeviceInfosResults->deviceInfos )
{
PaUtil_GroupFreeMemory( winDsHostApi->allocations, scanDeviceInfosResults->deviceInfos[0] ); /* all device info structs are allocated in a block so we can destroy them here */
PaUtil_GroupFreeMemory( winDsHostApi->allocations, scanDeviceInfosResults->deviceInfos );
}
PaUtil_GroupFreeMemory( winDsHostApi->allocations, scanDeviceInfosResults );
}
return paNoError;
}
/*************************************************************************
** Determine minimum number of buffers required for this host based

View file

@ -1,5 +1,5 @@
/*
* $Id$
* $Id: pa_win_wmme.c 1663 2011-05-01 13:21:43Z rossb $
* pa_win_wmme.c
* Implementation of PortAudio for Windows MultiMedia Extensions (WMME)
*
@ -1087,6 +1087,9 @@ PaError PaWinMme_Initialize( PaUtilHostApiRepresentation **hostApi, PaHostApiInd
(*hostApi)->Terminate = Terminate;
(*hostApi)->OpenStream = OpenStream;
(*hostApi)->IsFormatSupported = IsFormatSupported;
(*hostApi)->ScanDeviceInfos = 0;
(*hostApi)->CommitDeviceInfos = 0;
(*hostApi)->DisposeDeviceInfos = 0;
PaUtil_InitializeStreamInterface( &winMmeHostApi->callbackStreamInterface, CloseStream, StartStream,
StopStream, AbortStream, IsStreamStopped, IsStreamActive,

315
src/os/win/pa_win_hotplug.c Normal file
View file

@ -0,0 +1,315 @@
#include "pa_util.h"
#include "pa_debugprint.h"
#include "pa_allocation.h"
#include "pa_win_wdmks_utils.h"
#include <windows.h>
#include <dbt.h>
#include <process.h>
#include <assert.h>
#include <ks.h>
#include <ksmedia.h>
#include <setupapi.h>
#include <stdio.h>
#if (defined(WIN32) && (defined(_MSC_VER) && (_MSC_VER >= 1200))) /* MSC version 6 and above */
#pragma comment( lib, "setupapi.lib" )
#endif
/* Implemented in pa_front.c
@param first 0 = unknown, 1 = insertion, 2 = removal
@param second Host specific device change info (in windows it is the (unicode) device path)
*/
extern void PaUtil_DevicesChanged(unsigned, void*);
/* use CreateThread for CYGWIN/Windows Mobile, _beginthreadex for all others */
#if !defined(__CYGWIN__) && !defined(_WIN32_WCE)
#define CREATE_THREAD_FUNCTION (HANDLE)_beginthreadex
#define PA_THREAD_FUNC static unsigned WINAPI
#else
#define CREATE_THREAD_FUNCTION CreateThread
#define PA_THREAD_FUNC static DWORD WINAPI
#endif
typedef struct PaHotPlugDeviceInfo
{
wchar_t name[MAX_PATH];
struct PaHotPlugDeviceInfo* next;
} PaHotPlugDeviceInfo;
typedef struct PaHotPlugDeviceEventHandlerInfo
{
HANDLE hWnd;
HANDLE hMsgThread;
HANDLE hNotify;
CRITICAL_SECTION lock;
PaUtilAllocationGroup* cacheAllocGroup;
PaHotPlugDeviceInfo* cache;
} PaHotPlugDeviceEventHandlerInfo;
static BOOL RemoveDeviceFromCache(PaHotPlugDeviceEventHandlerInfo* pInfo, const wchar_t* name)
{
if (pInfo->cache != NULL)
{
PaHotPlugDeviceInfo* lastEntry = 0;
PaHotPlugDeviceInfo* entry = pInfo->cache;
while (entry != NULL)
{
if (_wcsicmp(entry->name, name) == 0)
{
if (lastEntry)
{
lastEntry->next = entry->next;
}
else
{
pInfo->cache = NULL;
}
PaUtil_GroupFreeMemory(pInfo->cacheAllocGroup, entry);
return TRUE;
}
lastEntry = entry;
entry = entry->next;
}
}
return FALSE;
}
static void InsertDeviceIntoCache(PaHotPlugDeviceEventHandlerInfo* pInfo, const wchar_t* name)
{
PaHotPlugDeviceInfo** ppEntry = NULL;
/* Remove it first (if possible) so we don't accidentally get duplicates */
RemoveDeviceFromCache(pInfo, name);
if (pInfo->cache == NULL)
{
ppEntry = &pInfo->cache;
}
else
{
PaHotPlugDeviceInfo* entry = pInfo->cache;
while (entry->next != NULL)
{
entry = entry->next;
}
ppEntry = &entry->next;
}
*ppEntry = (PaHotPlugDeviceInfo*)PaUtil_GroupAllocateMemory(pInfo->cacheAllocGroup, sizeof(PaHotPlugDeviceInfo));
wcsncpy((*ppEntry)->name, name, MAX_PATH-1);
(*ppEntry)->next = NULL;
}
static BOOL IsDeviceAudio(const wchar_t* deviceName)
{
int channelCnt = 0;
channelCnt += PaWin_WDMKS_QueryFilterMaximumChannelCount((void*)deviceName, 1);
channelCnt += PaWin_WDMKS_QueryFilterMaximumChannelCount((void*)deviceName, 0);
return (channelCnt > 0);
}
static void PopulateCacheWithAvailableAudioDevices(PaHotPlugDeviceEventHandlerInfo* pInfo)
{
HDEVINFO handle = NULL;
const int sizeInterface = sizeof(SP_DEVICE_INTERFACE_DETAIL_DATA_W) + (MAX_PATH * sizeof(WCHAR));
SP_DEVICE_INTERFACE_DETAIL_DATA_W* devInterfaceDetails = (SP_DEVICE_INTERFACE_DETAIL_DATA_W*)PaUtil_AllocateMemory(sizeInterface);
if (devInterfaceDetails)
{
devInterfaceDetails->cbSize = sizeof(SP_DEVICE_INTERFACE_DETAIL_DATA_W);
/* Open a handle to search for devices (filters) */
handle = SetupDiGetClassDevsW(&KSCATEGORY_AUDIO,NULL,NULL,DIGCF_PRESENT | DIGCF_DEVICEINTERFACE);
if( handle != NULL )
{
int device;
/* Iterate through the devices */
for( device = 0;;device++ )
{
SP_DEVICE_INTERFACE_DATA interfaceData;
SP_DEVINFO_DATA devInfoData;
int noError;
interfaceData.cbSize = sizeof(SP_DEVICE_INTERFACE_DATA);
interfaceData.Reserved = 0;
devInfoData.cbSize = sizeof(SP_DEVINFO_DATA);
devInfoData.Reserved = 0;
noError = SetupDiEnumDeviceInterfaces(handle,NULL,&KSCATEGORY_AUDIO,device,&interfaceData);
if( !noError )
break; /* No more devices */
noError = SetupDiGetDeviceInterfaceDetailW(handle,&interfaceData,devInterfaceDetails,sizeInterface,NULL,&devInfoData);
if( noError )
{
if (IsDeviceAudio(devInterfaceDetails->DevicePath))
{
PA_DEBUG(("Hotplug cache populated with: '%S'\n", devInterfaceDetails->DevicePath));
InsertDeviceIntoCache(pInfo, devInterfaceDetails->DevicePath);
}
}
}
SetupDiDestroyDeviceInfoList(handle);
}
PaUtil_FreeMemory(devInterfaceDetails);
}
}
static LRESULT CALLBACK PaMsgWinProcW(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
{
PaHotPlugDeviceEventHandlerInfo* pInfo = (PaHotPlugDeviceEventHandlerInfo*)( GetWindowLongPtr(hWnd, GWLP_USERDATA) );
switch(msg)
{
case WM_DEVICECHANGE:
switch(wParam)
{
case DBT_DEVICEARRIVAL:
{
PDEV_BROADCAST_DEVICEINTERFACE_W ptr = (PDEV_BROADCAST_DEVICEINTERFACE_W)lParam;
if (ptr->dbcc_devicetype != DBT_DEVTYP_DEVICEINTERFACE)
break;
if (!IsEqualGUID(&ptr->dbcc_classguid, &KSCATEGORY_AUDIO))
break;
if (IsDeviceAudio(ptr->dbcc_name))
{
PA_DEBUG(("Device inserted : %S\n", ptr->dbcc_name));
InsertDeviceIntoCache(pInfo, ptr->dbcc_name);
PaUtil_DevicesChanged(1, ptr->dbcc_name);
}
}
break;
case DBT_DEVICEREMOVECOMPLETE:
{
PDEV_BROADCAST_DEVICEINTERFACE_W ptr = (PDEV_BROADCAST_DEVICEINTERFACE_W)lParam;
if (ptr->dbcc_devicetype != DBT_DEVTYP_DEVICEINTERFACE)
break;
if (!IsEqualGUID(&ptr->dbcc_classguid, &KSCATEGORY_AUDIO))
break;
if (RemoveDeviceFromCache(pInfo, ptr->dbcc_name))
{
PA_DEBUG(("Device removed : %S\n", ptr->dbcc_name));
PaUtil_DevicesChanged(2, ptr->dbcc_name);
}
}
break;
default:
break;
}
break;
}
return DefWindowProcW(hWnd, msg, wParam, lParam);
}
PA_THREAD_FUNC PaRunMessageLoop(void* ptr)
{
PaHotPlugDeviceEventHandlerInfo* pInfo = (PaHotPlugDeviceEventHandlerInfo*)ptr;
WNDCLASSW wnd = { 0 };
HMODULE hInstance = GetModuleHandleW(NULL);
wnd.lpfnWndProc = PaMsgWinProcW;
wnd.hInstance = hInstance;
wnd.lpszClassName = L"{1E0D4F5A-B31F-4dcc-AE3C-4F30A47BD521}"; /* Using a GUID as class name */
pInfo->hWnd = CreateWindowW((LPCWSTR)MAKEINTATOM(RegisterClassW(&wnd)), NULL, 0, 0, 0, 0, 0, HWND_MESSAGE, NULL, hInstance, NULL);
if (pInfo->hWnd)
{
DEV_BROADCAST_DEVICEINTERFACE_W NotificationFilter = { sizeof(DEV_BROADCAST_DEVICEINTERFACE_W) };
NotificationFilter.dbcc_devicetype = DBT_DEVTYP_DEVICEINTERFACE;
#ifndef DEVICE_NOTIFY_ALL_INTERFACE_CLASSES
#define DEVICE_NOTIFY_ALL_INTERFACE_CLASSES 0x00000004
#endif
pInfo->hNotify = RegisterDeviceNotificationW(
pInfo->hWnd,
&NotificationFilter,
DEVICE_NOTIFY_WINDOW_HANDLE|DEVICE_NOTIFY_ALL_INTERFACE_CLASSES
);
assert(pInfo->hNotify);
SetWindowLongPtr(pInfo->hWnd, GWLP_USERDATA, (LONG_PTR)pInfo);
if (pInfo->hNotify)
{
MSG msg;
BOOL result;
while((result = GetMessageW(&msg, pInfo->hWnd, 0, 0)) != 0)
{
if (result == -1)
{
break;
}
TranslateMessage(&msg);
DispatchMessageW(&msg);
}
UnregisterDeviceNotification(pInfo->hNotify);
pInfo->hNotify = 0;
}
DestroyWindow(pInfo->hWnd);
pInfo->hWnd = 0;
}
return 0;
}
static PaHotPlugDeviceEventHandlerInfo* s_handler = 0;
void PaUtil_InitializeHotPlug()
{
if (s_handler == 0)
{
s_handler = (PaHotPlugDeviceEventHandlerInfo*)PaUtil_AllocateMemory(sizeof(PaHotPlugDeviceEventHandlerInfo));
if (s_handler)
{
s_handler->cacheAllocGroup = PaUtil_CreateAllocationGroup();
InitializeCriticalSection(&s_handler->lock);
PopulateCacheWithAvailableAudioDevices(s_handler);
/* Start message thread */
s_handler->hMsgThread = CREATE_THREAD_FUNCTION(NULL, 0, PaRunMessageLoop, s_handler, 0, NULL);
assert(s_handler->hMsgThread != 0);
}
}
}
void PaUtil_TerminateHotPlug()
{
if (s_handler != 0)
{
if (s_handler->hWnd)
{
PostMessage(s_handler->hWnd, WM_QUIT, 0, 0);
if (WaitForSingleObject(s_handler->hMsgThread, 1000) == WAIT_TIMEOUT)
{
TerminateThread(s_handler->hMsgThread, -1);
}
}
DeleteCriticalSection(&s_handler->lock);
PaUtil_FreeAllAllocations( s_handler->cacheAllocGroup );
PaUtil_DestroyAllocationGroup( s_handler->cacheAllocGroup );
PaUtil_FreeMemory( s_handler );
s_handler = 0;
}
}
void PaUtil_LockHotPlug()
{
EnterCriticalSection(&s_handler->lock);
}
void PaUtil_UnlockHotPlug()
{
LeaveCriticalSection(&s_handler->lock);
}

View file

@ -9,7 +9,7 @@
@author Phil Burk <philburk@softsynth.com>
*/
/*
* $Id$
* $Id: patest_leftright.c 1661 2011-04-28 18:54:46Z rob_bielik $
*
* This program uses the PortAudio Portable Audio Library.
* For more information see: http://www.portaudio.com

View file

@ -6,7 +6,7 @@
@author Phil Burk <philburk@softsynth.com>
*/
/*
* $Id$
* $Id: patest_out_underflow.c 1661 2011-04-28 18:54:46Z rob_bielik $
*
* This program uses the PortAudio Portable Audio Library.
* For more information see: http://www.portaudio.com

View file

@ -4,7 +4,7 @@
@author Phil Burk <philburk@softsynth.com>
*/
/*
* $Id$
* $Id: patest_two_rates.c 1661 2011-04-28 18:54:46Z rob_bielik $
*
* Author: Phil Burk http://www.softsynth.com
*

View file

@ -0,0 +1,48 @@
#include <stdio.h>
#include <assert.h>
#include "portaudio.h"
void printDevices()
{
int deviceCount = Pa_GetDeviceCount();
int i;
for( i=0; i < deviceCount; ++i ){
const PaDeviceInfo *deviceInfo = Pa_GetDeviceInfo(i);
const PaHostApiInfo *hostApiInfo = Pa_GetHostApiInfo( deviceInfo->hostApi );
assert( deviceInfo != 0 );
printf( "%d %s (%s)\n", i, deviceInfo->name, hostApiInfo->name );
}
}
static void devicesChangedCallback(void* p)
{
(void)p;
printf( "Portaudio device list have changed!\n" );
}
int main(int argc, char* argv[])
{
Pa_Initialize();
Pa_SetDevicesChangedCallback(NULL, devicesChangedCallback);
for(;;){
printDevices();
printf( "press [enter] to update the device list. or q + [enter] to quit.\n" );
if( getchar() == 'q' )
break;
Pa_UpdateAvailableDeviceList();
}
Pa_Terminate();
return 0;
}