예제 #1
0
PaError PaHost_CloseStream( internalPortAudioStream   *past )
{
	PaHostSoundControl *pahsc;
	if( past == NULL ) return paBadStreamPtr;
	pahsc = (PaHostSoundControl *) past->past_DeviceData;
	if( pahsc == NULL ) return paNoError;
	DSW_Term( &pahsc->pahsc_DSoundWrapper );
	if( pahsc->pahsc_NativeBuffer )
	{
		PaHost_FreeFastMemory( pahsc->pahsc_NativeBuffer, pahsc->pahsc_BytesPerBuffer ); /* MEM */
		pahsc->pahsc_NativeBuffer = NULL;
	}
	PaHost_FreeFastMemory( pahsc, sizeof(PaHostSoundControl) ); /* MEM */
	past->past_DeviceData = NULL;
	return paNoError;
}
예제 #2
0
PaError PaHost_Term( void )
{
    /* Free all of the linked devices. */
    internalPortAudioDevice *pad, *nextPad;
    pad = sDeviceList;
    while( pad != NULL )
    {
        nextPad = pad->pad_Next;
        DBUG(("PaHost_Term: freeing %s\n", pad->pad_DeviceName ));
        PaHost_FreeFastMemory( pad, sizeof(internalPortAudioDevice) );
        pad = nextPad;
    }
    sDeviceList = NULL;
    return 0;
}
예제 #3
0
PaError PaHost_Term( void )
{
	int i;
/* Free names allocated during enumeration. */
	for( i=0; i<sNumDevices; i++ )
	{
		if( sDevices[i].pad_Info.name != NULL )
		{
			free( (void *) sDevices[i].pad_Info.name );
			sDevices[i].pad_Info.name = NULL;
		}
	}
	if( sDevices != NULL )
	{
		PaHost_FreeFastMemory( sDevices, sNumDevices * sizeof(internalPortAudioDevice) ); /* MEM */
		sDevices = NULL;
		sNumDevices = 0;
	}
	return 0;
}
예제 #4
0
/* Build linked a list with all the available audio devices on this SGI machine (only 1 for now).  */
PaError PaHost_Init(void)                              /* Called by Pa_Initialize() from pa_lib.c. */
{
    internalPortAudioDevice*    pad;
	PaError                     r = paNoError;
    int                         audioLibFileID;             /* To test for the presence of audio.  */

    if (sDeviceList)                                        /* Allow re-init, only warn, no error. */
        {
        ERR_RPT(("Warning: PaHost_Init() did not really re-init PA.\n"));
        return r;
        }
    /*------------- ADD THE SGI DEFAULT DEVICE TO THE LIST: ---------------------------------------*/
    audioLibFileID = open("/dev/hdsp/hdsp0master", O_RDONLY);   /* Try to open Indigo style audio  */
    if (audioLibFileID < 0)                                     /* IO port. On failure, machine    */
        {                                                       /* has no audio ability.           */
        ERR_RPT(("PaHost_Init(): This machine has no (Indigo-style) audio abilities.\n"));
        return paHostError;
        }
    close(audioLibFileID);                              /* Allocate fast mem to hold device info.  */
	pad = PaHost_AllocateFastMemory(sizeof(internalPortAudioDevice));
	if (pad == NULL)
        return paInsufficientMemory;
    memset(pad, 0, sizeof(internalPortAudioDevice));    /* "pad->pad_Next = NULL" is more elegant. */
	r = Pa_sgiQueryDevice(AL_DEFAULT_DEVICE,            /* Set AL device num (AL_DEFAULT_DEVICE).  */
                          Pa_GetDefaultOutputDeviceID(),/* Set PA device num (or InputDeviceID()). */
                          "AL default",                 /* A suitable name.                        */
                          pad);                         /* Write args and queried info into pad.   */
	if (r != paNoError)
		{
        ERR_RPT(("Pa_QueryDevice for '%s' returned: %d\n", pad->pad_DeviceName, r));
		PaHost_FreeFastMemory(pad, sizeof(internalPortAudioDevice));   /* sDeviceList still NULL ! */
		}
    else
        sDeviceList = pad;            /* First element in linked list. pad->pad_Next already NULL. */
    /*------------- QUERY AND ADD MORE POSSIBLE SGI DEVICES TO THE LINKED LIST: -------------------*/
    /*---------------------------------------------------------------------------------------------*/
	return r;
}
예제 #5
0
/*********************************************************************
 * Determines the number of available devices by trying to open
 * each "/dev/dsp#" or "/dsp/audio#" in order until it fails.
 * Add each working device to a singly linked list of devices.
 */
PaError Pa_QueryDevices( void )
{
    internalPortAudioDevice *pad, *lastPad;
    int      go = 1;
    int      numDevices = 0;
    PaError  testResult;
    PaError  result = paNoError;
    char     *envdev;

    sDefaultInputDeviceID = paNoDevice;
    sDefaultOutputDeviceID = paNoDevice;

    lastPad = NULL;

    while( go )
    {
        /* Allocate structure to hold device info. */
        pad = (internalPortAudioDevice *)
              PaHost_AllocateFastMemory( sizeof(internalPortAudioDevice) );
        if( pad == NULL ) return paInsufficientMemory;
        memset( pad, 0, sizeof(internalPortAudioDevice) );

        /* Build name for device. */
        if( numDevices == 0 )
        {
            sprintf( pad->pad_DeviceName, DEVICE_NAME_BASE);
        }
        else
        {
            sprintf( pad->pad_DeviceName, DEVICE_NAME_BASE "%d", numDevices );
        }

        DBUG(("Try device %s\n", pad->pad_DeviceName ));
        testResult = Pa_QueryDevice( pad->pad_DeviceName, pad );
        DBUG(("Pa_QueryDevice returned %d\n", testResult ));
        if( testResult != paNoError )
        {
            if( lastPad == NULL )
            {
                result = testResult; /* No good devices! */
            }
            go = 0;
            PaHost_FreeFastMemory( pad, sizeof(internalPortAudioDevice) );
        }
        else
        {
            numDevices += 1;
            /* Add to linked list of devices. */
            if( lastPad )
            {
                lastPad->pad_Next = pad;
            }
            else
            {
                sDeviceList = pad; /* First element in linked list. */
            }
            lastPad = pad;
        }
    }

    /* I'm sitting at a SunRay1 and I neither have /dev/audio# nor /dev/dsp#.
       Instead, the correct audio device is stored in the environment variable
       AUDIODEV and/or UTAUDIODEV, so check these devices as well if we haven't
       checked them yet above  - MR */

    DBUG(("Checking for AUDIODEV and UTAUDIODEV\n"));
    envdev = getenv("AUDIODEV");
    if (envdev != NULL && !strstr(envdev, DEVICE_NAME_BASE)) {
        result = paNoError;

        /* Allocate structure to hold device info. */
        pad = (internalPortAudioDevice *)
              PaHost_AllocateFastMemory( sizeof(internalPortAudioDevice) );
        if( pad == NULL ) return paInsufficientMemory;
        memset( pad, 0, sizeof(internalPortAudioDevice) );

        /* Build name for device. */
        strcpy(pad->pad_DeviceName, envdev);

        DBUG(("Try device %s\n", pad->pad_DeviceName ));
        testResult = Pa_QueryDevice( pad->pad_DeviceName, pad );
        DBUG(("Pa_QueryDevice returned %d\n", testResult ));
        if( testResult != paNoError )
        {
            if( lastPad == NULL )
            {
                result = testResult; /* No good devices! */
            }
            PaHost_FreeFastMemory( pad, sizeof(internalPortAudioDevice) );
        }
        else
        {
            numDevices += 1;
            /* Add to linked list of devices. */
            if( lastPad )
            {
                lastPad->pad_Next = pad;
            }
            else
            {
                sDeviceList = pad; /* First element in linked list. */
            }
            lastPad = pad;
        }
    }

    envdev = getenv("UTAUDIODEV");
    if (envdev != NULL && !strstr(envdev, DEVICE_NAME_BASE) && getenv("AUDIODEV") != NULL && strcmp(envdev, getenv("AUDIODEV"))) {
        result = paNoError;

        /* Allocate structure to hold device info. */
        pad = (internalPortAudioDevice *)
              PaHost_AllocateFastMemory( sizeof(internalPortAudioDevice) );
        if( pad == NULL ) return paInsufficientMemory;
        memset( pad, 0, sizeof(internalPortAudioDevice) );

        /* Build name for device. */
        strcpy(pad->pad_DeviceName, envdev);

        DBUG(("Try device %s\n", pad->pad_DeviceName ));
        testResult = Pa_QueryDevice( pad->pad_DeviceName, pad );
        DBUG(("Pa_QueryDevice returned %d\n", testResult ));
        if( testResult != paNoError )
        {
            if( lastPad == NULL )
            {
                result = testResult; /* No good devices! */
            }
            PaHost_FreeFastMemory( pad, sizeof(internalPortAudioDevice) );
        }
        else
        {
            numDevices += 1;
            /* Add to linked list of devices. */
            if( lastPad )
            {
                lastPad->pad_Next = pad;
            }
            else
            {
                sDeviceList = pad; /* First element in linked list. */
            }
            lastPad = pad;
        }
    }

    return result;
}