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jack2/windows/portaudio/JackPortAudioDriver.cpp

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  1. /*

  2. Copyright (C) 2004-2008 Grame

  3. 

  4. This program is free software; you can redistribute it and/or modify

  5. it under the terms of the GNU General Public License as published by

  6. the Free Software Foundation; either version 2 of the License, or

  7. (at your option) any later version.

  8. 

  9. This program is distributed in the hope that it will be useful,

  10. but WITHOUT ANY WARRANTY; without even the implied warranty of

  11. MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

  12. GNU General Public License for more details.

  13. 

  14. You should have received a copy of the GNU General Public License

  15. along with this program; if not, write to the Free Software

  16. Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.

  17. 

  18. */

  19. 

  20. #if defined(HAVE_CONFIG_H)

  21. #include "config.h"

  22. #endif

  23. 

  24. #include "JackDriverLoader.h"

  25. #include "driver_interface.h"

  26. #include "JackPortAudioDriver.h"

  27. #include "JackEngineControl.h"

  28. #include "JackError.h"

  29. #include "JackTime.h"

  30. #include "JackCompilerDeps.h"

  31. #include <iostream>

  32. #include <assert.h>

  33. 

  34. using namespace std;

  35. 

  36. namespace Jack

  37. {

  38.     int JackPortAudioDriver::Render(const void* inputBuffer, void* outputBuffer,

  39.                                     unsigned long framesPerBuffer,

  40.                                     const PaStreamCallbackTimeInfo* timeInfo,

  41.                                     PaStreamCallbackFlags statusFlags,

  42.                                     void* userData)

  43.     {

  44.         JackPortAudioDriver* driver = (JackPortAudioDriver*)userData;

  45.         driver->fInputBuffer = (float**)inputBuffer;

  46.         driver->fOutputBuffer = (float**)outputBuffer;

  47.         // Setup threadded based log function

  48.         set_threaded_log_function();

  49.         driver->CycleTakeBeginTime();

  50.         return (driver->Process() == 0) ? paContinue : paAbort;

  51.     }

  52. 

  53.     int JackPortAudioDriver::Read()

  54.     {

  55.         for (int i = 0; i < fCaptureChannels; i++)

  56.             memcpy(GetInputBuffer(i), fInputBuffer[i], sizeof(float) * fEngineControl->fBufferSize);

  57.         return 0;

  58.     }

  59. 

  60.     int JackPortAudioDriver::Write()

  61.     {

  62.         for (int i = 0; i < fPlaybackChannels; i++)

  63.             memcpy(fOutputBuffer[i], GetOutputBuffer(i), sizeof(float) * fEngineControl->fBufferSize);

  64.         return 0;

  65.     }

  66. 

  67.     int JackPortAudioDriver::Open(jack_nframes_t buffer_size,

  68.                                   jack_nframes_t samplerate,

  69.                                   bool capturing,

  70.                                   bool playing,

  71.                                   int inchannels,

  72.                                   int outchannels,

  73.                                   bool monitor,

  74.                                   const char* capture_driver_uid,

  75.                                   const char* playback_driver_uid,

  76.                                   jack_nframes_t capture_latency,

  77.                                   jack_nframes_t playback_latency)

  78.     {

  79.         PaError err = paNoError;

  80.         PaStreamParameters inputParameters;

  81.         PaStreamParameters outputParameters;

  82.         int in_max = 0;

  83.         int out_max = 0;

  84. 

  85.         jack_log("JackPortAudioDriver::Open nframes = %ld in = %ld out = %ld capture name = %s playback name = %s samplerate = %ld",

  86.                  buffer_size, inchannels, outchannels, capture_driver_uid, playback_driver_uid, samplerate);

  87. 

  88.         // Generic JackAudioDriver Open

  89.         if (JackAudioDriver::Open(buffer_size, samplerate, capturing, playing, inchannels, outchannels, monitor, capture_driver_uid, playback_driver_uid, capture_latency, playback_latency) != 0)

  90.             return -1;

  91. 

  92.         //get devices

  93.         if (capturing)

  94.         {

  95.             if (fPaDevices->GetInputDeviceFromName(capture_driver_uid, fInputDevice, in_max) < 0)

  96.                 goto error;

  97.         }

  98.         if (playing)

  99.         {

  100.             if (fPaDevices->GetOutputDeviceFromName(playback_driver_uid, fOutputDevice, out_max) < 0)

  101.                 goto error;

  102.         }

  103. 

  104.         jack_log("JackPortAudioDriver::Open fInputDevice = %d, fOutputDevice %d", fInputDevice, fOutputDevice);

  105. 

  106.         //default channels number required

  107.         if (inchannels == 0)

  108.         {

  109.             jack_log("JackPortAudioDriver::Open setup max in channels = %ld", in_max);

  110.             inchannels = in_max;

  111.         }

  112.         if (outchannels == 0)

  113.         {

  114.             jack_log("JackPortAudioDriver::Open setup max out channels = %ld", out_max);

  115.             outchannels = out_max;

  116.         }

  117. 

  118.         //too many channels required, take max available

  119.         if (inchannels > in_max)

  120.         {

  121.             jack_error("This device has only %d available input channels.", in_max);

  122.             inchannels = in_max;

  123.         }

  124.         if (outchannels > out_max)

  125.         {

  126.             jack_error("This device has only %d available output channels.", out_max);

  127.             outchannels = out_max;

  128.         }

  129. 

  130.         //in/out streams parametering

  131.         inputParameters.device = fInputDevice;

  132.         inputParameters.channelCount = inchannels;

  133.         inputParameters.sampleFormat = paFloat32 | paNonInterleaved;		// 32 bit floating point output

  134.         inputParameters.suggestedLatency = (fInputDevice != paNoDevice)		// TODO: check how to setup this on ASIO

  135. 										   ? fPaDevices->GetDeviceInfo(fInputDevice)->defaultLowInputLatency

  136.                                            : 0;

  137.         inputParameters.hostApiSpecificStreamInfo = NULL;

  138. 

  139.         outputParameters.device = fOutputDevice;

  140.         outputParameters.channelCount = outchannels;

  141.         outputParameters.sampleFormat = paFloat32 | paNonInterleaved;		// 32 bit floating point output

  142.         outputParameters.suggestedLatency = (fOutputDevice != paNoDevice)	// TODO: check how to setup this on ASIO

  143.                                             ? fPaDevices->GetDeviceInfo(fOutputDevice)->defaultLowOutputLatency

  144.                                             : 0;

  145.         outputParameters.hostApiSpecificStreamInfo = NULL;

  146. 

  147.         err = Pa_OpenStream(&fStream,

  148.                             (fInputDevice == paNoDevice) ? 0 : &inputParameters,

  149.                             (fOutputDevice == paNoDevice) ? 0 : &outputParameters,

  150.                             samplerate,

  151.                             buffer_size,

  152.                             paNoFlag,  // Clipping is on...

  153.                             Render,

  154.                             this);

  155.         if (err != paNoError)

  156.         {

  157.             jack_error("Pa_OpenStream error = %s", Pa_GetErrorText(err));

  158.             goto error;

  159.         }

  160. 

  161. #ifdef __APPLE__

  162.         fEngineControl->fPeriod = fEngineControl->fPeriodUsecs * 1000;

  163.         fEngineControl->fComputation = 500 * 1000;

  164.         fEngineControl->fConstraint = fEngineControl->fPeriodUsecs * 1000;

  165. #endif

  166. 

  167.         // Core driver may have changed the in/out values

  168.         fCaptureChannels = inchannels;

  169.         fPlaybackChannels = outchannels;

  170. 

  171.         assert(strlen(capture_driver_uid) < JACK_CLIENT_NAME_SIZE);

  172.         assert(strlen(playback_driver_uid) < JACK_CLIENT_NAME_SIZE);

  173. 

  174.         strcpy(fCaptureDriverName, capture_driver_uid);

  175.         strcpy(fPlaybackDriverName, playback_driver_uid);

  176. 

  177.         return 0;

  178. 

  179. error:

  180.         jack_error ( "Can't open default PortAudio device : %s", Pa_GetErrorText(err) );

  181.         return -1;

  182.     }

  183. 

  184.     int JackPortAudioDriver::Close()

  185.     {

  186.         JackAudioDriver::Close();

  187.         jack_log("JackPortAudioDriver::Close");

  188.         Pa_CloseStream(fStream);

  189.         return 0;

  190.     }

  191. 

  192.     int JackPortAudioDriver::Start()

  193.     {

  194.         jack_log("JackPortAudioDriver::Start");

  195.         JackAudioDriver::Start();

  196.         PaError err = Pa_StartStream(fStream);

  197.         return (err == paNoError) ? 0 : -1;

  198.     }

  199. 

  200.     int JackPortAudioDriver::Stop()

  201.     {

  202.         jack_log("JackPortAudioDriver::Stop");

  203.         PaError err = Pa_StopStream(fStream);

  204.         return (err == paNoError) ? 0 : -1;

  205.     }

  206. 

  207.     int JackPortAudioDriver::SetBufferSize(jack_nframes_t buffer_size)

  208.     {

  209.         PaError err;

  210.         PaStreamParameters inputParameters;

  211.         PaStreamParameters outputParameters;

  212. 

  213.         if ((err = Pa_CloseStream(fStream)) != paNoError)

  214.         {

  215.             jack_error("Pa_CloseStream error = %s", Pa_GetErrorText(err));

  216.             return -1;

  217.         }

  218. 

  219.         //change parametering

  220.         inputParameters.device = fInputDevice;

  221.         inputParameters.channelCount = fCaptureChannels;

  222.         inputParameters.sampleFormat = paFloat32 | paNonInterleaved;		// 32 bit floating point output

  223.         inputParameters.suggestedLatency = (fInputDevice != paNoDevice)		// TODO: check how to setup this on ASIO

  224.                                            ? Pa_GetDeviceInfo(inputParameters.device)->defaultLowInputLatency

  225.                                            : 0;

  226.         inputParameters.hostApiSpecificStreamInfo = NULL;

  227. 

  228.         outputParameters.device = fOutputDevice;

  229.         outputParameters.channelCount = fPlaybackChannels;

  230.         outputParameters.sampleFormat = paFloat32 | paNonInterleaved;		// 32 bit floating point output

  231.         outputParameters.suggestedLatency = (fOutputDevice != paNoDevice)	// TODO: check how to setup this on ASIO

  232.                                             ? Pa_GetDeviceInfo(outputParameters.device)->defaultLowOutputLatency

  233.                                             : 0;

  234.         outputParameters.hostApiSpecificStreamInfo = NULL;

  235. 

  236.         err = Pa_OpenStream(&fStream,

  237.                             (fInputDevice == paNoDevice) ? 0 : &inputParameters,

  238.                             (fOutputDevice == paNoDevice) ? 0 : &outputParameters,

  239.                             fEngineControl->fSampleRate,

  240.                             buffer_size,

  241.                             paNoFlag,  // Clipping is on...

  242.                             Render,

  243.                             this);

  244. 

  245.         if (err != paNoError)

  246.         {

  247.             jack_error("Pa_OpenStream error = %s", Pa_GetErrorText(err));

  248.             return -1;

  249.         }

  250.         else

  251.         {

  252.             // Only done when success

  253.             return JackAudioDriver::SetBufferSize(buffer_size); // never fails

  254.         }

  255.     }

  256. 

  257. } // end of namespace

  258. 

  259. #ifdef __cplusplus

  260. extern "C"

  261. {

  262. #endif

  263. 

  264. #include "JackCompilerDeps.h"

  265. 

  266.     SERVER_EXPORT jack_driver_desc_t* driver_get_descriptor()

  267.     {

  268.         jack_driver_desc_t *desc;

  269.         unsigned int i;

  270.         desc = (jack_driver_desc_t*)calloc(1, sizeof(jack_driver_desc_t));

  271. 

  272.         strcpy(desc->name, "portaudio");                             // size MUST be less then JACK_DRIVER_NAME_MAX + 1

  273.         strcpy(desc->desc, "PortAudio API based audio backend");     // size MUST be less then JACK_DRIVER_PARAM_DESC + 1

  274. 

  275.         desc->nparams = 13;

  276.         desc->params = (jack_driver_param_desc_t*)calloc(desc->nparams, sizeof(jack_driver_param_desc_t));

  277. 

  278.         i = 0;

  279.         strcpy(desc->params[i].name, "channels");

  280.         desc->params[i].character = 'c';

  281.         desc->params[i].type = JackDriverParamInt;

  282.         desc->params[i].value.ui = 0;

  283.         strcpy(desc->params[i].short_desc, "Maximum number of channels");

  284.         strcpy(desc->params[i].long_desc, desc->params[i].short_desc);

  285. 

  286.         i++;

  287.         strcpy(desc->params[i].name, "inchannels");

  288.         desc->params[i].character = 'i';

  289.         desc->params[i].type = JackDriverParamInt;

  290.         desc->params[i].value.ui = 0;

  291.         strcpy(desc->params[i].short_desc, "Maximum number of input channels");

  292.         strcpy(desc->params[i].long_desc, desc->params[i].short_desc);

  293. 

  294.         i++;

  295.         strcpy(desc->params[i].name, "outchannels");

  296.         desc->params[i].character = 'o';

  297.         desc->params[i].type = JackDriverParamInt;

  298.         desc->params[i].value.ui = 0;

  299.         strcpy(desc->params[i].short_desc, "Maximum number of output channels");

  300.         strcpy(desc->params[i].long_desc, desc->params[i].short_desc);

  301. 

  302.         i++;

  303.         strcpy(desc->params[i].name, "capture");

  304.         desc->params[i].character = 'C';

  305.         desc->params[i].type = JackDriverParamString;

  306.         strcpy(desc->params[i].value.str, "will take default PortAudio input device");

  307.         strcpy(desc->params[i].short_desc, "Provide capture ports. Optionally set PortAudio device name");

  308.         strcpy(desc->params[i].long_desc, desc->params[i].short_desc);

  309. 

  310.         i++;

  311.         strcpy(desc->params[i].name, "playback");

  312.         desc->params[i].character = 'P';

  313.         desc->params[i].type = JackDriverParamString;

  314.         strcpy(desc->params[i].value.str, "will take default PortAudio output device");

  315.         strcpy(desc->params[i].short_desc, "Provide playback ports. Optionally set PortAudio device name");

  316.         strcpy(desc->params[i].long_desc, desc->params[i].short_desc);

  317. 

  318.         i++;

  319.         strcpy (desc->params[i].name, "monitor");

  320.         desc->params[i].character = 'm';

  321.         desc->params[i].type = JackDriverParamBool;

  322.         desc->params[i].value.i = 0;

  323.         strcpy(desc->params[i].short_desc, "Provide monitor ports for the output");

  324.         strcpy(desc->params[i].long_desc, desc->params[i].short_desc);

  325. 

  326.         i++;

  327.         strcpy(desc->params[i].name, "duplex");

  328.         desc->params[i].character = 'D';

  329.         desc->params[i].type = JackDriverParamBool;

  330.         desc->params[i].value.i = TRUE;

  331.         strcpy(desc->params[i].short_desc, "Provide both capture and playback ports");

  332.         strcpy(desc->params[i].long_desc, desc->params[i].short_desc);

  333. 

  334.         i++;

  335.         strcpy(desc->params[i].name, "rate");

  336.         desc->params[i].character = 'r';

  337.         desc->params[i].type = JackDriverParamUInt;

  338.         desc->params[i].value.ui = 44100U;

  339.         strcpy(desc->params[i].short_desc, "Sample rate");

  340.         strcpy(desc->params[i].long_desc, desc->params[i].short_desc);

  341. 

  342.         i++;

  343.         strcpy(desc->params[i].name, "period");

  344.         desc->params[i].character = 'p';

  345.         desc->params[i].type = JackDriverParamUInt;

  346.         desc->params[i].value.ui = 128U;

  347.         strcpy(desc->params[i].short_desc, "Frames per period");

  348.         strcpy(desc->params[i].long_desc, desc->params[i].short_desc);

  349. 

  350.         i++;

  351.         strcpy(desc->params[i].name, "device");

  352.         desc->params[i].character = 'd';

  353.         desc->params[i].type = JackDriverParamString;

  354.         desc->params[i].value.ui = 128U;

  355.         strcpy(desc->params[i].value.str, "will take default PortAudio device name");

  356.         strcpy(desc->params[i].short_desc, "PortAudio device name");

  357.         strcpy(desc->params[i].long_desc, desc->params[i].short_desc);

  358. 

  359.         i++;

  360.         strcpy(desc->params[i].name, "input-latency");

  361.         desc->params[i].character = 'I';

  362.         desc->params[i].type = JackDriverParamUInt;

  363.         desc->params[i].value.i = 0;

  364.         strcpy(desc->params[i].short_desc, "Extra input latency");

  365.         strcpy(desc->params[i].long_desc, desc->params[i].short_desc);

  366. 

  367.         i++;

  368.         strcpy(desc->params[i].name, "output-latency");

  369.         desc->params[i].character = 'O';

  370.         desc->params[i].type = JackDriverParamUInt;

  371.         desc->params[i].value.i = 0;

  372.         strcpy(desc->params[i].short_desc, "Extra output latency");

  373.         strcpy(desc->params[i].long_desc, desc->params[i].short_desc);

  374. 

  375.         i++;

  376.         strcpy(desc->params[i].name, "list-devices");

  377.         desc->params[i].character = 'l';

  378.         desc->params[i].type = JackDriverParamBool;

  379.         desc->params[i].value.i = TRUE;

  380.         strcpy(desc->params[i].short_desc, "Display available PortAudio devices");

  381.         strcpy(desc->params[i].long_desc, desc->params[i].short_desc);

  382. 

  383.         return desc;

  384.     }

  385. 

  386.     SERVER_EXPORT Jack::JackDriverClientInterface* driver_initialize(Jack::JackLockedEngine* engine, Jack::JackSynchro* table, const JSList* params)

  387.     {

  388.         jack_nframes_t srate = 44100;

  389.         jack_nframes_t frames_per_interrupt = 512;

  390.         const char* capture_pcm_name = "";

  391.         const char* playback_pcm_name = "";

  392.         int capture = FALSE;

  393.         int playback = FALSE;

  394.         int chan_in = 0;

  395.         int chan_out = 0;

  396.         bool monitor = false;

  397.         const JSList *node;

  398.         const jack_driver_param_t *param;

  399.         jack_nframes_t systemic_input_latency = 0;

  400.         jack_nframes_t systemic_output_latency = 0;

  401.         PortAudioDevices* pa_devices = new PortAudioDevices();

  402. 

  403.         for (node = params; node; node = jack_slist_next(node))

  404.         {

  405.             param = (const jack_driver_param_t *) node->data;

  406. 

  407.             switch (param->character)

  408.             {

  409. 

  410.             case 'd':

  411.                 capture_pcm_name = strdup(param->value.str);

  412.                 playback_pcm_name = strdup(param->value.str);

  413.                 break;

  414. 

  415.             case 'D':

  416.                 capture = TRUE;

  417.                 playback = TRUE;

  418.                 break;

  419. 

  420.             case 'c':

  421.                 chan_in = chan_out = (int) param->value.ui;

  422.                 break;

  423. 

  424.             case 'i':

  425.                 chan_in = (int) param->value.ui;

  426.                 break;

  427. 

  428.             case 'o':

  429.                 chan_out = (int) param->value.ui;

  430.                 break;

  431. 

  432.             case 'C':

  433.                 capture = TRUE;

  434.                 if (strcmp(param->value.str, "none") != 0)

  435.                 {

  436.                     capture_pcm_name = strdup(param->value.str);

  437.                 }

  438.                 break;

  439. 

  440.             case 'P':

  441.                 playback = TRUE;

  442.                 if (strcmp(param->value.str, "none") != 0)

  443.                 {

  444.                     playback_pcm_name = strdup(param->value.str);

  445.                 }

  446.                 break;

  447. 

  448.             case 'm':

  449.                 monitor = param->value.i;

  450.                 break;

  451. 

  452.             case 'r':

  453.                 srate = param->value.ui;

  454.                 break;

  455. 

  456.             case 'p':

  457.                 frames_per_interrupt = (unsigned int) param->value.ui;

  458.                 break;

  459. 

  460.             case 'I':

  461.                 systemic_input_latency = param->value.ui;

  462.                 break;

  463. 

  464.             case 'O':

  465.                 systemic_output_latency = param->value.ui;

  466.                 break;

  467. 

  468.             case 'l':

  469.                 pa_devices->DisplayDevicesNames();

  470.                 break;

  471.             }

  472.         }

  473. 

  474.         // duplex is the default

  475.         if (!capture && !playback)

  476.         {

  477.             capture = TRUE;

  478.             playback = TRUE;

  479.         }

  480. 

  481.         Jack::JackDriverClientInterface* driver = new Jack::JackPortAudioDriver("system", "portaudio", engine, table, pa_devices);

  482.         if (driver->Open(frames_per_interrupt, srate, capture, playback, chan_in, chan_out, monitor, capture_pcm_name, playback_pcm_name, systemic_input_latency, systemic_output_latency) == 0)

  483.         {

  484.             return driver;

  485.         }

  486.         else

  487.         {

  488.             delete driver;

  489.             return NULL;

  490.         }

  491.     }

  492. 

  493. #ifdef __cplusplus

  494. }

  495. #endif