Exemplo n.º 1
0
/*
 * new_fluid_sndmgr_audio_driver
 * This implementation used the 16bit format.
 */
fluid_audio_driver_t*
new_fluid_sndmgr_audio_driver(fluid_settings_t* settings, fluid_synth_t* synth)
{
  fluid_sndmgr_audio_driver_t* dev = NULL;
  int period_size, periods, buffer_size;

  /* check the format */
  if (!fluid_settings_str_equal(settings, "audio.sample-format", "16bits")) {
    FLUID_LOG(FLUID_ERR, "Unhandled sample format");
    return NULL;
  }

  /* compute buffer size */
  fluid_settings_getint(settings, "audio.period-size", &period_size);
  fluid_settings_getint(settings, "audio.periods", &periods);
  buffer_size = period_size*periods;

  /* allocated dev */
  dev = FLUID_NEW(fluid_sndmgr_audio_driver_t);
  if (dev == NULL) {
    FLUID_LOG(FLUID_PANIC, "Out of memory");
    return NULL;
  }
  FLUID_MEMSET(dev, 0, sizeof(fluid_sndmgr_audio_driver_t));

  dev->callback_is_audio_func = false;
  dev->data = (void *)synth;
  dev->callback = NULL;

  if (start_fluid_sndmgr_audio_driver(settings, dev, buffer_size) != 0) {
    delete_fluid_sndmgr_audio_driver((fluid_audio_driver_t*)dev);
    return NULL;
  }
  return (fluid_audio_driver_t*)dev;
}
Exemplo n.º 2
0
/**
 * Create a new MIDI player.
 * @param synth Fluid synthesizer instance to create player for
 * @return New MIDI player instance or NULL on error (out of memory)
 */
fluid_player_t* new_fluid_player(fluid_synth_t* synth)
{
	int i;
	fluid_player_t* player;
	player = FLUID_NEW(fluid_player_t);
	if (player == NULL) {
		FLUID_LOG(FLUID_ERR, "Out of memory");
		return NULL;
	}
	player->status = FLUID_PLAYER_READY;
	player->loop = 1;
	player->ntracks = 0;
	for (i = 0; i < MAX_NUMBER_OF_TRACKS; i++) {
		player->track[i] = NULL;
	}
	player->synth = synth;
	player->system_timer = NULL;
	player->sample_timer = NULL;
	player->playlist = NULL;
	player->currentfile = NULL;
	player->division = 0;
	player->send_program_change = 1;
	player->miditempo = 480000;
	player->deltatime = 4.0;
	player->cur_msec = 0;
	player->cur_ticks = 0;

	player->use_system_timer = 
		fluid_settings_str_equal(synth->settings, "player.timing-source", "system");

	fluid_settings_getint (synth->settings, "player.reset-synth", &i);
	player->reset_synth_between_songs = i;

	return player;
}
Exemplo n.º 3
0
/*
 * new_fluid_sndmgr_audio_driver2
 *
 * This implementation used the audio_func float format, with
 * conversion from float to 16bits in the driver.
 */
fluid_audio_driver_t*
new_fluid_sndmgr_audio_driver2(fluid_settings_t* settings, fluid_audio_func_t func, void* data)
{
  fluid_sndmgr_audio_driver_t* dev = NULL;
  int period_size, periods, buffer_size;

  /* compute buffer size */
  fluid_settings_getint(settings, "audio.period-size", &period_size);
  fluid_settings_getint(settings, "audio.periods", &periods);
  buffer_size = period_size*periods;

  /* allocated dev */
  dev = FLUID_NEW(fluid_sndmgr_audio_driver_t);
  if (dev == NULL) {
    FLUID_LOG(FLUID_PANIC, "Out of memory");
    return NULL;
  }
  FLUID_MEMSET(dev, 0, sizeof(fluid_sndmgr_audio_driver_t));

  /* allocate the conversion buffers */
  dev->convbuffers[0] = FLUID_ARRAY(float, buffer_size);
  dev->convbuffers[1] = FLUID_ARRAY(float, buffer_size);
  if ((dev->convbuffers[0] == NULL) || (dev->convbuffers[1] == NULL)) {
    FLUID_LOG(FLUID_PANIC, "Out of memory");
    goto error_recovery;
  }

  dev->callback_is_audio_func = true;
  dev->data = data;
  dev->callback = func;

  if (start_fluid_sndmgr_audio_driver(settings, dev, buffer_size) != 0) {
    goto error_recovery;
  }
  return (fluid_audio_driver_t*)dev;

 error_recovery:
  delete_fluid_sndmgr_audio_driver((fluid_audio_driver_t*)dev);
  return NULL;
}
Exemplo n.º 4
0
/**
 * Create a new midi router.  The default rules will pass all events unmodified.
 * @param settings Settings used to configure MIDI router
 * @param handler MIDI event callback.
 * @param event_handler_data Caller defined data pointer which gets passed to 'handler'
 * @return New MIDI router instance or NULL on error
 *
 * The MIDI handler callback should process the possibly filtered/modified MIDI
 * events from the MIDI router and forward them on to a synthesizer for example.
 * The function fluid_synth_handle_midi_event() can be used for \a handle and
 * a #fluid_synth_t passed as the \a event_handler_data parameter for this purpose.
 */
fluid_midi_router_t *
new_fluid_midi_router(fluid_settings_t *settings, handle_midi_event_func_t handler,
                      void *event_handler_data)
{
  fluid_midi_router_t *router = NULL;
  int i;

  router = FLUID_NEW (fluid_midi_router_t);

  if (router == NULL)
  {
    FLUID_LOG(FLUID_ERR, "Out of memory");
    return NULL;
  }

  FLUID_MEMSET (router, 0, sizeof (fluid_midi_router_t));

  /* Retrieve the number of MIDI channels for range limiting */
  fluid_settings_getint(settings, "synth.midi-channels", &router->nr_midi_channels);

  fluid_mutex_init (router->rules_mutex);

  router->synth = (fluid_synth_t *)event_handler_data;
  router->event_handler = handler;
  router->event_handler_data = event_handler_data;

  /* Create default routing rules which pass all events unmodified */
  for (i = 0; i < FLUID_MIDI_ROUTER_RULE_COUNT; i++)
  {
    router->rules[i] = new_fluid_midi_router_rule ();
    if (!router->rules[i]) goto error_recovery;
  }

  return router;

 error_recovery:
  delete_fluid_midi_router (router);
  return NULL;
}
Exemplo n.º 5
0
fluid_audio_driver_t*
new_fluid_file_audio_driver(fluid_settings_t* settings,
			    fluid_synth_t* synth)
{
	fluid_file_audio_driver_t* dev;
	int msec;

	dev = FLUID_NEW(fluid_file_audio_driver_t);
	if (dev == NULL) {
		FLUID_LOG(FLUID_ERR, "Out of memory");
		return NULL;
	}
	FLUID_MEMSET(dev, 0, sizeof(fluid_file_audio_driver_t));

	fluid_settings_getint(settings, "audio.period-size", &dev->period_size);
	fluid_settings_getnum(settings, "synth.sample-rate", &dev->sample_rate);

	dev->data = synth;
	dev->callback = (fluid_audio_func_t) fluid_synth_process;
	dev->samples = 0;

	dev->renderer = new_fluid_file_renderer(synth);

	if (dev->renderer == NULL)
		goto error_recovery;

	msec = (int) (0.5 + dev->period_size / dev->sample_rate * 1000.0);
	dev->timer = new_fluid_timer(msec, fluid_file_audio_run_s16, (void*) dev, TRUE, FALSE, TRUE);
	if (dev->timer == NULL) {
		FLUID_LOG(FLUID_PANIC, "Couldn't create the audio thread.");
		goto error_recovery;
	}

	return (fluid_audio_driver_t*) dev;

 error_recovery:
	delete_fluid_file_audio_driver((fluid_audio_driver_t*) dev);
	return NULL;
}
/*
 * new_fluid_core_audio_driver2
 */
fluid_audio_driver_t*
new_fluid_core_audio_driver2(fluid_settings_t* settings, fluid_audio_func_t func, void* data)
{
  char* devname = NULL;
  fluid_core_audio_driver_t* dev = NULL;
  int period_size, periods;
  double sample_rate;
  OSStatus status;
  UInt32 size;
  int i;

  dev = FLUID_NEW(fluid_core_audio_driver_t);
  if (dev == NULL) {
    FLUID_LOG(FLUID_ERR, "Out of memory");
    return NULL;
  }
  FLUID_MEMSET(dev, 0, sizeof(fluid_core_audio_driver_t));

  dev->callback = func;
  dev->data = data;

  // Open the default output unit
  ComponentDescription desc;
  desc.componentType = kAudioUnitType_Output;
  desc.componentSubType = kAudioUnitSubType_HALOutput; //kAudioUnitSubType_DefaultOutput;
  desc.componentManufacturer = kAudioUnitManufacturer_Apple;
  desc.componentFlags = 0;
  desc.componentFlagsMask = 0;

  Component comp = FindNextComponent(NULL, &desc);
  if (comp == NULL) {
    FLUID_LOG(FLUID_ERR, "Failed to get the default audio device");
    goto error_recovery;
  }

  status = OpenAComponent(comp, &dev->outputUnit);
  if (status != noErr) {
    FLUID_LOG(FLUID_ERR, "Failed to open the default audio device. Status=%ld\n", (long int)status);
    goto error_recovery;
  }

  // Set up a callback function to generate output
  AURenderCallbackStruct render;
  render.inputProc = fluid_core_audio_callback;
  render.inputProcRefCon = (void *) dev;
  status = AudioUnitSetProperty (dev->outputUnit,
                                 kAudioUnitProperty_SetRenderCallback,
                                 kAudioUnitScope_Input,
                                 0,
                                 &render,
                                 sizeof(render));
  if (status != noErr) {
    FLUID_LOG (FLUID_ERR, "Error setting the audio callback. Status=%ld\n", (long int)status);
    goto error_recovery;
  }

  fluid_settings_getnum(settings, "synth.sample-rate", &sample_rate);
  fluid_settings_getint(settings, "audio.periods", &periods);
  fluid_settings_getint(settings, "audio.period-size", &period_size);

  /* get the selected device name. if none is specified, use NULL for the default device. */
  if (fluid_settings_dupstr(settings, "audio.coreaudio.device", &devname)  /* alloc device name */
      && devname && strlen (devname) > 0) {
    AudioObjectPropertyAddress pa;
    pa.mSelector = kAudioHardwarePropertyDevices;
    pa.mScope = kAudioObjectPropertyScopeWildcard;
    pa.mElement = kAudioObjectPropertyElementMaster;
    if (OK (AudioObjectGetPropertyDataSize (kAudioObjectSystemObject, &pa, 0, 0, &size))) {
      int num = size / (int) sizeof (AudioDeviceID);
      AudioDeviceID devs [num];
      if (OK (AudioObjectGetPropertyData (kAudioObjectSystemObject, &pa, 0, 0, &size, devs))) {
        for (i = 0; i < num; ++i) {
          char name [1024];
          size = sizeof (name);
          pa.mSelector = kAudioDevicePropertyDeviceName;
          if (OK (AudioObjectGetPropertyData (devs[i], &pa, 0, 0, &size, name))) {
            if (get_num_outputs (devs[i]) > 0 && strcasecmp(devname, name) == 0) {
              AudioDeviceID selectedID = devs[i];
              status = AudioUnitSetProperty (dev->outputUnit,
                                             kAudioOutputUnitProperty_CurrentDevice,
                                             kAudioUnitScope_Global,
                                             0,
                                             &selectedID,
                                             sizeof(AudioDeviceID));
              if (status != noErr) {
                FLUID_LOG (FLUID_ERR, "Error setting the selected output device. Status=%ld\n", (long int)status);
                goto error_recovery;
              }
            }
          }
        }
      }
    }
  }

  if (devname)
    FLUID_FREE (devname); /* free device name */

  dev->buffer_size = period_size * periods;

  // The DefaultOutputUnit should do any format conversions
  // necessary from our format to the device's format.
  dev->format.mSampleRate = sample_rate; // sample rate of the audio stream
  dev->format.mFormatID = kAudioFormatLinearPCM; // encoding type of the audio stream
  dev->format.mFormatFlags = kLinearPCMFormatFlagIsFloat;
  dev->format.mBytesPerPacket = 2*sizeof(float);
  dev->format.mFramesPerPacket = 1;
  dev->format.mBytesPerFrame = 2*sizeof(float);
  dev->format.mChannelsPerFrame = 2;
  dev->format.mBitsPerChannel = 8*sizeof(float);

  FLUID_LOG (FLUID_DBG, "mSampleRate %g", dev->format.mSampleRate);
  FLUID_LOG (FLUID_DBG, "mFormatFlags %08X", dev->format.mFormatFlags);
  FLUID_LOG (FLUID_DBG, "mBytesPerPacket %d", dev->format.mBytesPerPacket);
  FLUID_LOG (FLUID_DBG, "mFramesPerPacket %d", dev->format.mFramesPerPacket);
  FLUID_LOG (FLUID_DBG, "mChannelsPerFrame %d", dev->format.mChannelsPerFrame);
  FLUID_LOG (FLUID_DBG, "mBytesPerFrame %d", dev->format.mBytesPerFrame);
  FLUID_LOG (FLUID_DBG, "mBitsPerChannel %d", dev->format.mBitsPerChannel);

  status = AudioUnitSetProperty (dev->outputUnit,
                                 kAudioUnitProperty_StreamFormat,
                                 kAudioUnitScope_Input,
                                 0,
                                 &dev->format,
                                 sizeof(AudioStreamBasicDescription));
  if (status != noErr) {
    FLUID_LOG (FLUID_ERR, "Error setting the audio format. Status=%ld\n", (long int)status);
    goto error_recovery;
  }

  status = AudioUnitSetProperty (dev->outputUnit,
                                 kAudioUnitProperty_MaximumFramesPerSlice,
                                 kAudioUnitScope_Input,
                                 0,
                                 &dev->buffer_size,
                                 sizeof(unsigned int));
  if (status != noErr) {
    FLUID_LOG (FLUID_ERR, "Failed to set the MaximumFramesPerSlice. Status=%ld\n", (long int)status);
    goto error_recovery;
  }
  FLUID_LOG (FLUID_DBG, "MaximumFramesPerSlice = %d", dev->buffer_size);

  dev->buffers[0] = FLUID_ARRAY(float, dev->buffer_size);
  dev->buffers[1] = FLUID_ARRAY(float, dev->buffer_size);

  // Initialize the audio unit
  status = AudioUnitInitialize(dev->outputUnit);
  if (status != noErr) {
    FLUID_LOG (FLUID_ERR, "Error calling AudioUnitInitialize(). Status=%ld\n", (long int)status);
    goto error_recovery;
  }

  // Start the rendering
  status = AudioOutputUnitStart (dev->outputUnit);
  if (status != noErr) {
    FLUID_LOG (FLUID_ERR, "Error calling AudioOutputUnitStart(). Status=%ld\n", (long int)status);
    goto error_recovery;
  }

  return (fluid_audio_driver_t*) dev;

error_recovery:

  delete_fluid_core_audio_driver((fluid_audio_driver_t*) dev);
  return NULL;
}
Exemplo n.º 7
0
fluid_audio_driver_t *
new_fluid_portaudio_driver (fluid_settings_t *settings, fluid_synth_t *synth)
{
  fluid_portaudio_driver_t *dev = NULL;
  PaStreamParameters outputParams;
  char *device = NULL;
  double sample_rate;
  int period_size;
  PaError err;

  dev = FLUID_NEW (fluid_portaudio_driver_t);

  if (dev == NULL)
  {
    FLUID_LOG (FLUID_ERR, "Out of memory");
    return NULL;
  }

  err = Pa_Initialize ();

  if (err != paNoError)
  {
    FLUID_LOG (FLUID_ERR, "Error initializing PortAudio driver: %s",
               Pa_GetErrorText (err));
    FLUID_FREE (dev);
    return NULL;
  }

  FLUID_MEMSET (dev, 0, sizeof (fluid_portaudio_driver_t));

  dev->synth = synth;

  fluid_settings_getint (settings, "audio.period-size", &period_size);
  fluid_settings_getnum (settings, "synth.sample-rate", &sample_rate);
  fluid_settings_dupstr(settings, "audio.portaudio.device", &device);   /* ++ alloc device name */

  bzero (&outputParams, sizeof (outputParams));
  outputParams.channelCount = 2;
  outputParams.suggestedLatency = (PaTime)period_size / sample_rate;

  /* Locate the device if specified */
  if (strcmp (device, PORTAUDIO_DEFAULT_DEVICE) != 0)
  {
    const PaDeviceInfo *deviceInfo;
    int numDevices;
    int i;

    numDevices = Pa_GetDeviceCount ();

    if (numDevices < 0)
    {
      FLUID_LOG (FLUID_ERR, "PortAudio returned unexpected device count %d", numDevices);
      goto error_recovery;
    }

    for (i = 0; i < numDevices; i++)
    {
      deviceInfo = Pa_GetDeviceInfo (i);

      if (strcmp (device, deviceInfo->name) == 0)
      {
        outputParams.device = i;
        break;
      }
    }

    if (i == numDevices)
    {
      FLUID_LOG (FLUID_ERR, "PortAudio device '%s' was not found", device);
      goto error_recovery;
    }
  }
  else outputParams.device = Pa_GetDefaultOutputDevice();

  if (fluid_settings_str_equal (settings, "audio.sample-format", "16bits"))
  {
    outputParams.sampleFormat = paInt16;
    dev->read = fluid_synth_write_s16;
  }
  else if (fluid_settings_str_equal (settings, "audio.sample-format", "float"))
  {
    outputParams.sampleFormat = paFloat32;
    dev->read = fluid_synth_write_float;
  }
  else
  {
    FLUID_LOG (FLUID_ERR, "Unknown sample format");
    goto error_recovery;
  }

  /* PortAudio section */

  /* Open an audio I/O stream. */
  err = Pa_OpenStream (&dev->stream,
                       NULL,              /* Input parameters */
                       &outputParams,
                       sample_rate,
                       period_size,
                       paNoFlag,
                       fluid_portaudio_run,
                       dev);

  if (err != paNoError)
  {
    FLUID_LOG (FLUID_ERR, "Error opening PortAudio stream: %s",
               Pa_GetErrorText (err));
    goto error_recovery;
  }

  err = Pa_StartStream (dev->stream);

  if (err != paNoError)
  {
    FLUID_LOG (FLUID_ERR, "Error starting PortAudio stream: %s",
               Pa_GetErrorText (err));
    goto error_recovery;
  }

  if (device) FLUID_FREE (device);      /* -- free device name */
  
  return (fluid_audio_driver_t *)dev;

error_recovery:
  if (device) FLUID_FREE (device);      /* -- free device name */
  delete_fluid_portaudio_driver ((fluid_audio_driver_t *)dev);
  return NULL;
}
Exemplo n.º 8
0
fluid_audio_driver_t*
new_fluid_dart_audio_driver(fluid_settings_t* settings, fluid_synth_t* synth)
{
    fluid_dart_audio_driver_t* dev;
    double sample_rate;
    int periods, period_size;
    UCHAR szFailedName[ 256 ];
    MCI_AMP_OPEN_PARMS AmpOpenParms;
    int i;
    ULONG rc;

    dev = FLUID_NEW(fluid_dart_audio_driver_t);
    if (dev == NULL) {
        FLUID_LOG(FLUID_ERR, "Out of memory");
        return NULL;
    }
    FLUID_MEMSET(dev, 0, sizeof(fluid_dart_audio_driver_t));

    fluid_settings_getnum(settings, "synth.sample-rate", &sample_rate);
    fluid_settings_getint(settings, "audio.periods", &periods);
    fluid_settings_getint(settings, "audio.period-size", &period_size);

    /* check the format */
    if (!fluid_settings_str_equal(settings, "audio.sample-format", "16bits")) {
        FLUID_LOG(FLUID_ERR, "Unhandled sample format");
        goto error_recovery;
    }

    dev->synth = synth;
    dev->frame_size = 2 * sizeof(short);

    /* Load only once
     */
    if( m_hmodMDM == NULLHANDLE )
    {
        rc = DosLoadModule(szFailedName, sizeof(szFailedName), "MDM", &m_hmodMDM);

        if (rc != 0 ) {
            FLUID_LOG(FLUID_ERR, "Cannot load MDM.DLL for DART due to %s", szFailedName);
            goto error_recovery;
        }

        rc = DosQueryProcAddr(m_hmodMDM, 1, NULL, (PFN *)&m_pfnmciSendCommand);

        if (rc != 0 ) {
            FLUID_LOG(FLUID_ERR, "Cannot find mciSendCommand() in MDM.DLL");
            DosFreeModule(m_hmodMDM);
            m_hmodMDM = NULLHANDLE;
            goto error_recovery;
        }
    }

    /* open the mixer device
     */
    FLUID_MEMSET(&AmpOpenParms, 0, sizeof(MCI_AMP_OPEN_PARMS));
    AmpOpenParms.usDeviceID = (USHORT)0;
    AmpOpenParms.pszDeviceType = (PSZ)MCI_DEVTYPE_AUDIO_AMPMIX;

    rc = m_pfnmciSendCommand(0, MCI_OPEN,
                             MCI_WAIT | MCI_OPEN_TYPE_ID | MCI_OPEN_SHAREABLE,
                             (PVOID)&AmpOpenParms, 0);

    if (rc != MCIERR_SUCCESS) {
        FLUID_LOG(FLUID_ERR, "Cannot open DART, rc = %lu", rc);
        goto error_recovery;
    }

    dev->usDeviceID = AmpOpenParms.usDeviceID;

    /* Set the MixSetupParms data structure to match the requirements.
     * This is a global that is used to setup the mixer.
     */
    dev->MixSetupParms.ulBitsPerSample = BPS_16;
    dev->MixSetupParms.ulFormatTag = MCI_WAVE_FORMAT_PCM;
    dev->MixSetupParms.ulSamplesPerSec = sample_rate;
    dev->MixSetupParms.ulChannels = 2;

    /* Setup the mixer for playback of wave data
     */
    dev->MixSetupParms.ulFormatMode = MCI_PLAY;
    dev->MixSetupParms.ulDeviceType = MCI_DEVTYPE_WAVEFORM_AUDIO;
    dev->MixSetupParms.pmixEvent    = fluid_dart_audio_run;

    rc = m_pfnmciSendCommand(dev->usDeviceID, MCI_MIXSETUP,
                             MCI_WAIT | MCI_MIXSETUP_INIT,
                             (PVOID)&dev->MixSetupParms, 0);

    if (rc != MCIERR_SUCCESS) {
        FLUID_LOG(FLUID_ERR, "Cannot setup DART, rc = %lu", rc);
        goto error_recovery;
    }

    /* Set up the BufferParms data structure and allocate
     * device buffers from the Amp-Mixer
     */
    dev->BufferParms.ulNumBuffers = NUM_MIX_BUFS;
    dev->BufferParms.ulBufferSize = periods * period_size * dev->frame_size;
    dev->BufferParms.pBufList = dev->MixBuffers;

    rc = m_pfnmciSendCommand(dev->usDeviceID, MCI_BUFFER,
                             MCI_WAIT | MCI_ALLOCATE_MEMORY,
                             (PVOID)&dev->BufferParms, 0);

    if ((USHORT)rc != MCIERR_SUCCESS) {
        FLUID_LOG(FLUID_ERR, "Cannot allocate memory for DART, rc = %lu", rc);
        goto error_recovery;
    }

    /* Initialize all device buffers.
     */
    for (i = 0; i < NUM_MIX_BUFS; i++) {
       FLUID_MEMSET(dev->MixBuffers[i].pBuffer, 0, dev->BufferParms.ulBufferSize);
       dev->MixBuffers[i].ulBufferLength = dev->BufferParms.ulBufferSize;
       dev->MixBuffers[i].ulFlags = 0;
       dev->MixBuffers[i].ulUserParm = (ULONG)dev;
       fluid_synth_write_s16(dev->synth, dev->MixBuffers[i].ulBufferLength / dev->frame_size,
                             dev->MixBuffers[i].pBuffer, 0, 2, dev->MixBuffers[i].pBuffer, 1, 2 );
    }

    /* Write buffers to kick off the amp mixer.
     */
    dev->MixSetupParms.pmixWrite(dev->MixSetupParms.ulMixHandle,
                                 dev->MixBuffers,
                                 NUM_MIX_BUFS);

    return (fluid_audio_driver_t*) dev;

error_recovery:

    delete_fluid_dart_audio_driver((fluid_audio_driver_t*) dev);
    return NULL;
}
Exemplo n.º 9
0
fluid_audio_driver_t *
new_fluid_portaudio_driver2 (fluid_settings_t *settings, fluid_audio_func_t func, void* data)
{
  fluid_portaudio_driver_t *dev = NULL;
  PaStreamParameters outputParams;
  char *device = NULL;
  double sample_rate;
  int period_size;
  PaError err;
  int numOutputs = 2;

  dev = FLUID_NEW (fluid_portaudio_driver_t);

  if (dev == NULL)
  {
    FLUID_LOG (FLUID_ERR, "Out of memory");
    return NULL;
  }

  err = Pa_Initialize ();

  if (err != paNoError)
  {
    FLUID_LOG (FLUID_ERR, "Error initializing PortAudio driver: %s",
               Pa_GetErrorText (err));
    FLUID_FREE (dev);
    return NULL;
  }

  FLUID_MEMSET (dev, 0, sizeof (fluid_portaudio_driver_t));
  dev->data = data;
  dev->callback = func;

  bzero (&outputParams, sizeof (outputParams));

  fluid_settings_getint (settings, "audio.period-size", &period_size);
  fluid_settings_getnum (settings, "synth.sample-rate", &sample_rate);
  fluid_settings_dupstr(settings, "audio.portaudio.device", &device);   /* ++ alloc device name */

  /* Locate the device if specified */

  if (strcmp (device, PORTAUDIO_DEFAULT_DEVICE) != 0)
  {
    const PaDeviceInfo *deviceInfo;
    int numDevices;
    int i;

    numDevices = Pa_GetDeviceCount ();

    if (numDevices < 0)
    {
      FLUID_LOG (FLUID_ERR, "PortAudio returned unexpected device count %d", numDevices);
      goto error_recovery;
    }

    for (i = 0; i < numDevices; i++)
    {
      deviceInfo = Pa_GetDeviceInfo (i);

      if (strcmp (device, deviceInfo->name) == 0)
      {
        outputParams.device = i;
		numOutputs = deviceInfo->maxOutputChannels;
        break;
      }
    }

    if (i == numDevices)
    {
      FLUID_LOG (FLUID_ERR, "PortAudio device '%s' was not found", device);
      goto error_recovery;
    }
  }
  else outputParams.device = Pa_GetDefaultOutputDevice();

  fluid_settings_getint(settings, "audio.portaudio.channelL", &(dev->chanL));
  fluid_settings_getint(settings, "audio.portaudio.channelR", &(dev->chanR));
  dev->chansOpen = 1 + ((dev->chanL > dev->chanR) ? dev->chanL : dev->chanR);
  if (dev->chansOpen > numOutputs) {
    // error
    FLUID_LOG (FLUID_ERR, "One specified channel is greater than the maximum number of channels: L=%d, R=%d, max=%d\n", dev->chanL, dev->chanR, numOutputs-1);
    goto error_recovery;
  }
  dev->buffer_size = period_size;
  dev->buffers[0] = FLUID_ARRAY(float, dev->buffer_size);
  dev->buffers[1] = FLUID_ARRAY(float, dev->buffer_size);

  outputParams.channelCount = dev->chansOpen;
  outputParams.suggestedLatency = (PaTime)period_size / sample_rate;

  // force float format
  outputParams.sampleFormat = paFloat32;

  /* PortAudio section */

  /* Open an audio I/O stream. */
  err = Pa_OpenStream (&dev->stream,
                       NULL,              /* Input parameters */
                       &outputParams,
                       sample_rate,
                       period_size,
                       paNoFlag,
                       fluid_portaudio_run,
                       dev);

  if (err != paNoError)
  {
    FLUID_LOG (FLUID_ERR, "Error opening PortAudio stream: %s",
               Pa_GetErrorText (err));
    goto error_recovery;
  }

  err = Pa_StartStream (dev->stream);

  if (err != paNoError)
  {
    FLUID_LOG (FLUID_ERR, "Error starting PortAudio stream: %s",
               Pa_GetErrorText (err));
    goto error_recovery;
  }

  if (device) FLUID_FREE (device);      /* -- free device name */
  
  return (fluid_audio_driver_t *)dev;

error_recovery:
  if (device) FLUID_FREE (device);      /* -- free device name */
  delete_fluid_portaudio_driver ((fluid_audio_driver_t *)dev);
  return NULL;
}
Exemplo n.º 10
0
/*
 * new_fluid_sndio_audio_driver
 */
fluid_audio_driver_t*
new_fluid_sndio_audio_driver(fluid_settings_t* settings, fluid_synth_t* synth)
{
  fluid_sndio_audio_driver_t* dev = NULL;
  double sample_rate;
  int periods, period_size;
  char* devname;
  pthread_attr_t attr;
  int err;

  dev = FLUID_NEW(fluid_sndio_audio_driver_t);
  if (dev == NULL) {
    FLUID_LOG(FLUID_ERR, "Out of memory");
    return NULL;
  }
  FLUID_MEMSET(dev, 0, sizeof(fluid_sndio_audio_driver_t));

  fluid_settings_getint(settings, "audio.periods", &periods);
  fluid_settings_getint(settings, "audio.period-size", &period_size);
  fluid_settings_getnum(settings, "synth.sample-rate", &sample_rate);

  dev->hdl = NULL;
  dev->synth = synth;
  dev->callback = NULL;
  dev->data = NULL;
  dev->cont = 1;

  if (!fluid_settings_dupstr(settings, "audio.sndio.device", &devname)) {
    devname = NULL;
  }

  dev->hdl = sio_open(devname, SIO_PLAY, 0);
  if (dev->hdl == NULL) {
    FLUID_LOG(FLUID_ERR, "sndio could not be opened for writing");
    goto error_recovery;
  }

  sio_initpar(&dev->par);

  if (fluid_settings_str_equal(settings, "audio.sample-format", "16bits")) {
    dev->par.bits = 16;
    dev->par.le = SIO_LE_NATIVE;
    dev->read = fluid_synth_write_s16;
  } else {
    FLUID_LOG(FLUID_ERR, "Unknown sample format");
    goto error_recovery;
  }

  dev->par.appbufsz = period_size * periods;
  dev->par.round = period_size;

  dev->par.pchan = 2;
  dev->par.rate = sample_rate;

  if (!sio_setpar(dev->hdl, &dev->par)) {
    FLUID_LOG(FLUID_ERR, "Couldn't set sndio audio parameters");
    goto error_recovery;
  }

  if (!sio_getpar(dev->hdl, &dev->par)) {
    FLUID_LOG(FLUID_ERR, "Couldn't get sndio audio parameters");
    goto error_recovery;
  } else if (dev->par.pchan != 2 || dev->par.rate != sample_rate ||
      dev->par.bits != 16) {
    FLUID_LOG(FLUID_ERR, "Couldn't set sndio audio parameters as desired");
    goto error_recovery;
  }

  dev->buffer_size = dev->par.round;
  dev->buffer_byte_size = dev->par.round * dev->par.bps * dev->par.pchan;

  dev->buffer = FLUID_MALLOC(dev->buffer_byte_size);
  if (dev->buffer == NULL) {
    FLUID_LOG(FLUID_ERR, "Out of memory");
    goto error_recovery;
  }

  if (!sio_start(dev->hdl)) {
    FLUID_LOG(FLUID_ERR, "Couldn't start sndio");
    goto error_recovery;
  }

  if (pthread_attr_init(&attr)) {
    FLUID_LOG(FLUID_ERR, "Couldn't initialize audio thread attributes");
    goto error_recovery;
  }

  err = pthread_create(&dev->thread, &attr, fluid_sndio_audio_run, (void*) dev);
  if (err) {
    FLUID_LOG(FLUID_ERR, "Couldn't create audio thread");
    goto error_recovery;
  }

  return (fluid_audio_driver_t*) dev;

error_recovery:
  delete_fluid_sndio_audio_driver((fluid_audio_driver_t*) dev);
  return NULL;
}
Exemplo n.º 11
0
fluid_audio_driver_t*
new_fluid_sndio_audio_driver2(fluid_settings_t* settings, fluid_audio_func_t func, void* data)
{
  fluid_sndio_audio_driver_t* dev = NULL;
  double sample_rate;
  int periods, period_size;
  char* devname;
  pthread_attr_t attr;
  int err;

  dev = FLUID_NEW(fluid_sndio_audio_driver_t);
  if (dev == NULL) {
    FLUID_LOG(FLUID_ERR, "Out of memory");
    return NULL;
  }
  FLUID_MEMSET(dev, 0, sizeof(fluid_sndio_audio_driver_t));

  fluid_settings_getint(settings, "audio.periods", &periods);
  fluid_settings_getint(settings, "audio.period-size", &period_size);
  fluid_settings_getnum(settings, "synth.sample-rate", &sample_rate);

  dev->hdl = NULL;
  dev->synth = NULL;
  dev->read = NULL;
  dev->callback = func;
  dev->data = data;
  dev->cont = 1;

  if (!fluid_settings_dupstr(settings, "audio.sndio.device", &devname)) {
    devname = NULL;
  }

  dev->hdl = sio_open(devname, SIO_PLAY, 0);
  if (dev->hdl == NULL) {
    FLUID_LOG(FLUID_ERR, "sndio could not be opened for writing");
    goto error_recovery;
  }

  sio_initpar(&dev->par);

  dev->par.appbufsz = period_size * periods;
  dev->par.round = period_size;

  dev->par.bits = 16;
  dev->par.le = SIO_LE_NATIVE;
  dev->par.pchan = 2;
  dev->par.rate = sample_rate;

  if (!sio_setpar(dev->hdl, &dev->par)){
    FLUID_LOG(FLUID_ERR, "Can't configure sndio parameters");
    goto error_recovery;
  }

  if (!sio_getpar(dev->hdl, &dev->par)) {
    FLUID_LOG(FLUID_ERR, "Couldn't get sndio audio parameters");
    goto error_recovery;
  } else if (dev->par.pchan != 2 || dev->par.rate != sample_rate ||
      dev->par.bits != 16) {
    FLUID_LOG(FLUID_ERR, "Couldn't set sndio audio parameters as desired");
    goto error_recovery;
  }

  dev->buffer_size = dev->par.round;
  dev->buffer_byte_size = dev->par.round * dev->par.bps * dev->par.pchan;

  /* allocate the buffers. FIXME!!! don't use interleaved samples */
  dev->buffer = FLUID_MALLOC(dev->buffer_byte_size);
  if (dev->buffer == NULL) {
    FLUID_LOG(FLUID_ERR, "Out of memory");
    goto error_recovery;
  }
  dev->buffers[0] = FLUID_ARRAY(float, dev->buffer_size);
  dev->buffers[1] = FLUID_ARRAY(float, dev->buffer_size);
  if ((dev->buffer == NULL) || (dev->buffers[0] == NULL) || (dev->buffers[1] == NULL)) {
    FLUID_LOG(FLUID_ERR, "Out of memory");
    goto error_recovery;
  }

  if (!sio_start(dev->hdl)) {
    FLUID_LOG(FLUID_ERR, "Couldn't start sndio");
    goto error_recovery;
  }

  if (pthread_attr_init(&attr)) {
    FLUID_LOG(FLUID_ERR, "Couldn't initialize audio thread attributes");
    goto error_recovery;
  }

  err = pthread_create(&dev->thread, &attr, fluid_sndio_audio_run2, (void*) dev);
  if (err) {
    FLUID_LOG(FLUID_ERR, "Couldn't create audio2 thread");
    goto error_recovery;
  }

  return (fluid_audio_driver_t*) dev;

error_recovery:
  delete_fluid_sndio_audio_driver((fluid_audio_driver_t*) dev);
  return NULL;
}
Exemplo n.º 12
0
/*
 * new_fluid_dsound_audio_driver
 */
fluid_audio_driver_t*
new_fluid_dsound_audio_driver(fluid_settings_t* settings, fluid_synth_t* synth)
{
  HRESULT hr;
  DSBUFFERDESC desc;
  fluid_dsound_audio_driver_t* dev = NULL;
  DSCAPS caps;
  char *buf1;
  DWORD bytes1;
  double sample_rate;
  int periods, period_size;
  fluid_dsound_devsel_t devsel;

  /* check if the globals are initialized */
  if (FLUID_HINSTANCE == NULL) {
    FLUID_LOG(FLUID_ERR, "FluidSynth hinstance not set, which is needed for DirectSound");
    return NULL;
  }

/*
  if (fluid_wnd == NULL) {
    if (fluid_win32_create_window() != 0) {
      FLUID_LOG(FLUID_ERR, "Couldn't create window needed for DirectSound");
      return NULL;
    }
  }
*/
  /* create and clear the driver data */
  dev = FLUID_NEW(fluid_dsound_audio_driver_t);
  if (dev == NULL) {
    FLUID_LOG(FLUID_ERR, "Out of memory");
    return NULL;
  }
  FLUID_MEMSET(dev, 0, sizeof(fluid_dsound_audio_driver_t));

  dev->synth = synth;
  dev->cont = 1;

  fluid_settings_getnum(settings, "synth.sample-rate", &sample_rate);
  fluid_settings_getint(settings, "audio.periods", &periods);
  fluid_settings_getint(settings, "audio.period-size", &period_size);

  /* check the format */
  if (!fluid_settings_str_equal(settings, "audio.sample-format", "16bits")) {
    FLUID_LOG(FLUID_ERR, "Unhandled sample format");
    goto error_recovery;
  }

  dev->frame_size = 2 * sizeof(short);
  dev->buffer_byte_size = period_size * dev->frame_size;
  dev->queue_byte_size = periods * dev->buffer_byte_size;
  dev->write = fluid_synth_write_s16;

  /* create and initialize the buffer format */
  dev->format = (WAVEFORMATEX*) FLUID_MALLOC(sizeof(WAVEFORMATEX));
  if (dev->format == NULL) {
    FLUID_LOG(FLUID_ERR, "Out of memory");
    goto error_recovery;
  }
  ZeroMemory(dev->format, sizeof(WAVEFORMATEX));

  dev->format->wFormatTag = WAVE_FORMAT_PCM;
  dev->format->nChannels = 2;
  dev->format->wBitsPerSample = 16;
  dev->format->nSamplesPerSec = (DWORD) sample_rate;
  dev->format->nBlockAlign = (WORD) dev->frame_size;
  dev->format->nAvgBytesPerSec = dev->format->nSamplesPerSec * dev->frame_size;
  dev->format->cbSize = 0;

  devsel.devGUID = NULL;
  /* get the selected device name. if none is specified, use NULL for the default device. */
  if(fluid_settings_dupstr(settings, "audio.dsound.device", &devsel.devname) == FLUID_OK /* ++ alloc device name */
     && devsel.devname && strlen (devsel.devname) > 0) {
    /* look for the GUID of the selected device */
    DirectSoundEnumerate((LPDSENUMCALLBACK) fluid_dsound_enum_callback2, (void *)&devsel);
  }

  if (devsel.devname) FLUID_FREE (devsel.devname);      /* -- free device name */

  /* open DirectSound */
  hr = DirectSoundCreate(devsel.devGUID, &dev->direct_sound, NULL);
  if (hr != DS_OK) {
    FLUID_LOG(FLUID_ERR, "Failed to create the DirectSound object");
    goto error_recovery;
  }

  hr = IDirectSound_SetCooperativeLevel(dev->direct_sound, fluid_win32_get_window(), DSSCL_PRIORITY);
  if (hr != DS_OK) {
    FLUID_LOG(FLUID_ERR, "Failed to set the cooperative level");
    goto error_recovery;
  }

  caps.dwSize = sizeof(caps);
  hr = IDirectSound_GetCaps(dev->direct_sound, &caps);
  if (hr != DS_OK)  {
    FLUID_LOG(FLUID_ERR, "Failed to query the device capacities");
    goto error_recovery;
  }

  /* create primary buffer */

  ZeroMemory(&desc, sizeof(DSBUFFERDESC));
  desc.dwSize = sizeof(DSBUFFERDESC);
  desc.dwFlags = DSBCAPS_PRIMARYBUFFER;

  if (caps.dwFreeHwMixingStreamingBuffers > 0) {
    desc.dwFlags |= DSBCAPS_LOCHARDWARE;
  }

  hr = IDirectSound_CreateSoundBuffer(dev->direct_sound, &desc, &dev->prim_buffer, NULL);
  if (hr != DS_OK) {
    FLUID_LOG(FLUID_ERR, "Failed to allocate the primary buffer");
    goto error_recovery;
  }

  /* set the primary sound buffer to this format. if it fails, just
     print a warning. */
  hr = IDirectSoundBuffer_SetFormat(dev->prim_buffer, dev->format);
  if (hr != DS_OK) {
    FLUID_LOG(FLUID_WARN, "Can't set format of primary sound buffer", fluid_win32_error(hr));
  }

  /* initialize the buffer description */

  ZeroMemory(&desc, sizeof(DSBUFFERDESC));
  desc.dwSize = sizeof(DSBUFFERDESC);
  desc.dwFlags = DSBCAPS_GLOBALFOCUS | DSBCAPS_GETCURRENTPOSITION2;
  desc.lpwfxFormat = dev->format;
  desc.dwBufferBytes = dev->queue_byte_size;
  desc.dwReserved = 0;

  if (caps.dwFreeHwMixingStreamingBuffers > 0) {
    desc.dwFlags |= DSBCAPS_LOCHARDWARE;
  }

  /* create the secondary sound buffer */

  hr = IDirectSound_CreateSoundBuffer(dev->direct_sound, &desc, &dev->sec_buffer, NULL);
  if (hr != DS_OK) {
    FLUID_LOG(FLUID_ERR, "dsound: Can't create sound buffer: %s", fluid_win32_error(hr));
    goto error_recovery;
  }


  /* Lock */
  hr = IDirectSoundBuffer_Lock(dev->sec_buffer, 0, 0, (void*) &buf1, &bytes1, 0, 0, DSBLOCK_ENTIREBUFFER);

  if ((hr != DS_OK) || (buf1 == NULL)) {
    FLUID_LOG(FLUID_PANIC, "Failed to lock the audio buffer. Exiting.");
    goto error_recovery;
  }

  /* fill the buffer with silence */
  memset(buf1, 0, bytes1);

  /* Unlock */
  IDirectSoundBuffer_Unlock(dev->sec_buffer, buf1, bytes1, 0, 0);


  /* start the audio thread */
  dev->thread = CreateThread(NULL, 0, &fluid_dsound_audio_run, (LPVOID) dev, 0, &dev->threadID);
  if (dev->thread == NULL) {
    goto error_recovery;
  }

  return (fluid_audio_driver_t*) dev;

 error_recovery:
  delete_fluid_dsound_audio_driver((fluid_audio_driver_t*) dev);
  return NULL;
}