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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. #include "JackDriverLoader.h"

  21. #include "driver_interface.h"

  22. #include "JackPortAudioDriver.h"

  23. #include "JackEngineControl.h"

  24. #include "JackError.h"

  25. #include "JackTime.h"

  26. #include "JackCompilerDeps.h"

  27. #include <iostream>

  28. #include <assert.h>

  29. 

  30. using namespace std;

  31. 

  32. namespace Jack

  33. {

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

  35.                                     unsigned long framesPerBuffer,

  36.                                     const PaStreamCallbackTimeInfo* timeInfo,

  37.                                     PaStreamCallbackFlags statusFlags,

  38.                                     void* userData)

  39.     {

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

  41.         driver->fInputBuffer = (jack_default_audio_sample_t**)inputBuffer;

  42.         driver->fOutputBuffer = (jack_default_audio_sample_t**)outputBuffer;

  43.         // Setup threadded based log function

  44.         set_threaded_log_function();

  45.         driver->CycleTakeBeginTime();

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

  47.     }

  48. 

  49.     int JackPortAudioDriver::Read()

  50.     {

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

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

  53.         return 0;

  54.     }

  55. 

  56.     int JackPortAudioDriver::Write()

  57.     {

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

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

  60.         return 0;

  61.     }

  62. 

  63.     int JackPortAudioDriver::Open(jack_nframes_t buffer_size,

  64.                                   jack_nframes_t samplerate,

  65.                                   bool capturing,

  66.                                   bool playing,

  67.                                   int inchannels,

  68.                                   int outchannels,

  69.                                   bool monitor,

  70.                                   const char* capture_driver_uid,

  71.                                   const char* playback_driver_uid,

  72.                                   jack_nframes_t capture_latency,

  73.                                   jack_nframes_t playback_latency)

  74.     {

  75.         PaError err = paNoError;

  76.         PaStreamParameters inputParameters;

  77.         PaStreamParameters outputParameters;

  78.         int in_max = 0;

  79.         int out_max = 0;

  80. 

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

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

  83. 

  84.         // Generic JackAudioDriver Open

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

  86.             return -1;

  87. 

  88.         //get devices

  89.         if (capturing)

  90.         {

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

  92.                 goto error;

  93.         }

  94.         if (playing)

  95.         {

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

  97.                 goto error;

  98.         }

  99. 

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

  101. 

  102.         //default channels number required

  103.         if (inchannels == 0)

  104.         {

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

  106.             inchannels = in_max;

  107.         }

  108.         if (outchannels == 0)

  109.         {

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

  111.             outchannels = out_max;

  112.         }

  113. 

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

  115.         if (inchannels > in_max)

  116.         {

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

  118.             inchannels = in_max;

  119.         }

  120.         if (outchannels > out_max)

  121.         {

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

  123.             outchannels = out_max;

  124.         }

  125. 

  126.         //in/out streams parametering

  127.         inputParameters.device = fInputDevice;

  128.         inputParameters.channelCount = inchannels;

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

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

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

  132.                                            : 0;

  133.         inputParameters.hostApiSpecificStreamInfo = NULL;

  134. 

  135.         outputParameters.device = fOutputDevice;

  136.         outputParameters.channelCount = outchannels;

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

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

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

  140.                                             : 0;

  141.         outputParameters.hostApiSpecificStreamInfo = NULL;

  142. 

  143.         err = Pa_OpenStream(&fStream,

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

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

  146.                             samplerate,

  147.                             buffer_size,

  148.                             paNoFlag,  // Clipping is on...

  149.                             Render,

  150.                             this);

  151.         if (err != paNoError)

  152.         {

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

  154.             goto error;

  155.         }

  156. 

  157. #ifdef __APPLE__

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

  159.         fEngineControl->fComputation = 500 * 1000;

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

  161. #endif

  162. 

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

  164.         fCaptureChannels = inchannels;

  165.         fPlaybackChannels = outchannels;

  166. 

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

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

  169. 

  170.         strcpy(fCaptureDriverName, capture_driver_uid);

  171.         strcpy(fPlaybackDriverName, playback_driver_uid);

  172. 

  173.         return 0;

  174. 

  175. error:

  176.         JackAudioDriver::Close();

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

  178.         return -1;

  179.     }

  180. 

  181.     int JackPortAudioDriver::Close()

  182.     {

  183.         // Generic audio driver close

  184.         int res = JackAudioDriver::Close();

  185. 

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

  187.         Pa_CloseStream(fStream);

  188.         return res;

  189.     }

  190. 

  191.     int JackPortAudioDriver::Start()

  192.     {

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

  194.         if (JackAudioDriver::Start() >= 0) {

  195.             PaError err = Pa_StartStream(fStream);

  196.             if (err == paNoError) {

  197.                 return 0;

  198.             }

  199.             JackAudioDriver::Stop();

  200.         }

  201.         return -1;

  202.     }

  203. 

  204.     int JackPortAudioDriver::Stop()

  205.     {

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

  207.         PaError err = Pa_StopStream(fStream);

  208.         int res = (err == paNoError) ? 0 : -1;

  209.         if (JackAudioDriver::Stop() < 0) {

  210.             res = -1;

  211.         }

  212.         return res;

  213.     }

  214. 

  215.     int JackPortAudioDriver::SetBufferSize(jack_nframes_t buffer_size)

  216.     {

  217.         PaError err;

  218.         PaStreamParameters inputParameters;

  219.         PaStreamParameters outputParameters;

  220. 

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

  222.         {

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

  224.             return -1;

  225.         }

  226. 

  227.         //change parametering

  228.         inputParameters.device = fInputDevice;

  229.         inputParameters.channelCount = fCaptureChannels;

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

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

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

  233.                                            : 0;

  234.         inputParameters.hostApiSpecificStreamInfo = NULL;

  235. 

  236.         outputParameters.device = fOutputDevice;

  237.         outputParameters.channelCount = fPlaybackChannels;

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

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

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

  241.                                             : 0;

  242.         outputParameters.hostApiSpecificStreamInfo = NULL;

  243. 

  244.         err = Pa_OpenStream(&fStream,

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

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

  247.                             fEngineControl->fSampleRate,

  248.                             buffer_size,

  249.                             paNoFlag,  // Clipping is on...

  250.                             Render,

  251.                             this);

  252. 

  253.         if (err != paNoError)

  254.         {

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

  256.             return -1;

  257.         }

  258.         else

  259.         {

  260.             // Only done when success

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

  262.         }

  263.     }

  264. 

  265. } // end of namespace

  266. 

  267. #ifdef __cplusplus

  268. extern "C"

  269. {

  270. #endif

  271. 

  272. #include "JackCompilerDeps.h"

  273. 

  274.     SERVER_EXPORT jack_driver_desc_t* driver_get_descriptor()

  275.     {

  276.         jack_driver_desc_t *desc;

  277.         unsigned int i;

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

  279. 

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

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

  282. 

  283.         desc->nparams = 13;

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

  285. 

  286.         i = 0;

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

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

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

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

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

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

  293. 

  294.         i++;

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

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

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

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

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

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

  301. 

  302.         i++;

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

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

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

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

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

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

  309. 

  310.         i++;

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

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

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

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

  315.         strcpy(desc->params[i].short_desc, "Provide capture 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, "playback");

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

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

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

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

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

  325. 

  326.         i++;

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

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

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

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

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

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

  333. 

  334.         i++;

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

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

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

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

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

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

  341. 

  342.         i++;

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

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

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

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

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

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

  349. 

  350.         i++;

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

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

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

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

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

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

  357. 

  358.         i++;

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

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

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

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

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

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

  365. 

  366.         i++;

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

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

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

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

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

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

  373. 

  374.         i++;

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

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

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

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

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

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

  381. 

  382.         i++;

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

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

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

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

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

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

  389. 

  390.         return desc;

  391.     }

  392. 

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

  394.     {

  395.         jack_nframes_t srate = 44100;

  396.         jack_nframes_t frames_per_interrupt = 512;

  397.         const char* capture_pcm_name = "";

  398.         const char* playback_pcm_name = "";

  399.         bool capture = false;

  400.         bool playback = false;

  401.         int chan_in = 0;

  402.         int chan_out = 0;

  403.         bool monitor = false;

  404.         const JSList *node;

  405.         const jack_driver_param_t *param;

  406.         jack_nframes_t systemic_input_latency = 0;

  407.         jack_nframes_t systemic_output_latency = 0;

  408.         PortAudioDevices* pa_devices = new PortAudioDevices();

  409. 

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

  411.         {

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

  413. 

  414.             switch (param->character)

  415.             {

  416. 

  417.             case 'd':

  418.                 capture_pcm_name = param->value.str;

  419.                 playback_pcm_name = param->value.str;

  420.                 break;

  421. 

  422.             case 'D':

  423.                 capture = true;

  424.                 playback = true;

  425.                 break;

  426. 

  427.             case 'c':

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

  429.                 break;

  430. 

  431.             case 'i':

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

  433.                 break;

  434. 

  435.             case 'o':

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

  437.                 break;

  438. 

  439.             case 'C':

  440.                 capture = true;

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

  442.                     capture_pcm_name = param->value.str;

  443.                 }

  444.                 break;

  445. 

  446.             case 'P':

  447.                 playback = TRUE;

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

  449.                     playback_pcm_name = param->value.str;

  450.                 }

  451.                 break;

  452. 

  453.             case 'm':

  454.                 monitor = param->value.i;

  455.                 break;

  456. 

  457.             case 'r':

  458.                 srate = param->value.ui;

  459.                 break;

  460. 

  461.             case 'p':

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

  463.                 break;

  464. 

  465.             case 'I':

  466.                 systemic_input_latency = param->value.ui;

  467.                 break;

  468. 

  469.             case 'O':

  470.                 systemic_output_latency = param->value.ui;

  471.                 break;

  472. 

  473.             case 'l':

  474.                 pa_devices->DisplayDevicesNames();

  475.                 break;

  476.             }

  477.         }

  478. 

  479.         // duplex is the default

  480.         if (!capture && !playback) {

  481.             capture = true;

  482.             playback = true;

  483.         }

  484. 

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

  486.         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)

  487.         {

  488.             return driver;

  489.         }

  490.         else

  491.         {

  492.             delete driver;

  493.             return NULL;

  494.         }

  495.     }

  496. 

  497. #ifdef __cplusplus

  498. }

  499. #endif