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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. #ifdef WIN32

  25. #pragma warning (disable : 4786)

  26. #endif

  27. 

  28. #include "JackDriverLoader.h"

  29. #include "driver_interface.h"

  30. #include "JackPortAudioDriver.h"

  31. #include "JackEngineControl.h"

  32. #include "JackError.h"

  33. #include "JackTime.h"

  34. #include "JackCompilerDeps.h"

  35. #include <iostream>

  36. #include <assert.h>

  37. 

  38. using namespace std;

  39. 

  40. namespace Jack

  41. {

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

  43.                                     unsigned long framesPerBuffer,

  44.                                     const PaStreamCallbackTimeInfo* timeInfo,

  45.                                     PaStreamCallbackFlags statusFlags,

  46.                                     void* userData)

  47.     {

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

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

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

  51.         // Setup threadded based log function

  52.         set_threaded_log_function();

  53.         driver->CycleTakeBeginTime();

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

  55.     }

  56. 

  57.     int JackPortAudioDriver::Read()

  58.     {

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

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

  61.         return 0;

  62.     }

  63. 

  64.     int JackPortAudioDriver::Write()

  65.     {

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

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

  68.         return 0;

  69.     }

  70. 

  71.     int JackPortAudioDriver::Open(jack_nframes_t buffer_size,

  72.                                   jack_nframes_t samplerate,

  73.                                   bool capturing,

  74.                                   bool playing,

  75.                                   int inchannels,

  76.                                   int outchannels,

  77.                                   bool monitor,

  78.                                   const char* capture_driver_uid,

  79.                                   const char* playback_driver_uid,

  80.                                   jack_nframes_t capture_latency,

  81.                                   jack_nframes_t playback_latency)

  82.     {

  83.         PaError err = paNoError;

  84.         PaStreamParameters inputParameters;

  85.         PaStreamParameters outputParameters;

  86.         int in_max = 0;

  87.         int out_max = 0;

  88. 

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

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

  91. 

  92.         // Generic JackAudioDriver Open

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

  94.             return -1;

  95. 

  96.         //get devices

  97.         if (capturing)

  98.         {

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

  100.                 goto error;

  101.         }

  102.         if (playing)

  103.         {

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

  105.                 goto error;

  106.         }

  107. 

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

  109. 

  110.         //default channels number required

  111.         if (inchannels == 0)

  112.         {

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

  114.             inchannels = in_max;

  115.         }

  116.         if (outchannels == 0)

  117.         {

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

  119.             outchannels = out_max;

  120.         }

  121. 

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

  123.         if (inchannels > in_max)

  124.         {

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

  126.             inchannels = in_max;

  127.         }

  128.         if (outchannels > out_max)

  129.         {

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

  131.             outchannels = out_max;

  132.         }

  133. 

  134.         //in/out streams parametering

  135.         inputParameters.device = fInputDevice;

  136.         inputParameters.channelCount = inchannels;

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

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

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

  140.                                            : 0;

  141.         inputParameters.hostApiSpecificStreamInfo = NULL;

  142. 

  143.         outputParameters.device = fOutputDevice;

  144.         outputParameters.channelCount = outchannels;

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

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

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

  148.                                             : 0;

  149.         outputParameters.hostApiSpecificStreamInfo = NULL;

  150. 

  151.         err = Pa_OpenStream(&fStream,

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

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

  154.                             samplerate,

  155.                             buffer_size,

  156.                             paNoFlag,  // Clipping is on...

  157.                             Render,

  158.                             this);

  159.         if (err != paNoError)

  160.         {

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

  162.             goto error;

  163.         }

  164. 

  165. #ifdef __APPLE__

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

  167.         fEngineControl->fComputation = 500 * 1000;

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

  169. #endif

  170. 

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

  172.         fCaptureChannels = inchannels;

  173.         fPlaybackChannels = outchannels;

  174. 

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

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

  177. 

  178.         strcpy(fCaptureDriverName, capture_driver_uid);

  179.         strcpy(fPlaybackDriverName, playback_driver_uid);

  180. 

  181.         return 0;

  182. 

  183. error:

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

  185.         return -1;

  186.     }

  187. 

  188.     int JackPortAudioDriver::Close()

  189.     {

  190.         JackAudioDriver::Close();

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

  192.         Pa_CloseStream(fStream);

  193.         return 0;

  194.     }

  195. 

  196.     int JackPortAudioDriver::Start()

  197.     {

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

  199.         JackAudioDriver::Start();

  200.         PaError err = Pa_StartStream(fStream);

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

  202.     }

  203. 

  204.     int JackPortAudioDriver::Stop()

  205.     {

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

  207.         PaError err = Pa_StopStream(fStream);

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

  209.     }

  210. 

  211.     int JackPortAudioDriver::SetBufferSize(jack_nframes_t buffer_size)

  212.     {

  213.         PaError err;

  214.         PaStreamParameters inputParameters;

  215.         PaStreamParameters outputParameters;

  216. 

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

  218.         {

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

  220.             return -1;

  221.         }

  222. 

  223.         //change parametering

  224.         inputParameters.device = fInputDevice;

  225.         inputParameters.channelCount = fCaptureChannels;

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

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

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

  229.                                            : 0;

  230.         inputParameters.hostApiSpecificStreamInfo = NULL;

  231. 

  232.         outputParameters.device = fOutputDevice;

  233.         outputParameters.channelCount = fPlaybackChannels;

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

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

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

  237.                                             : 0;

  238.         outputParameters.hostApiSpecificStreamInfo = NULL;

  239. 

  240.         err = Pa_OpenStream(&fStream,

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

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

  243.                             fEngineControl->fSampleRate,

  244.                             buffer_size,

  245.                             paNoFlag,  // Clipping is on...

  246.                             Render,

  247.                             this);

  248. 

  249.         if (err != paNoError)

  250.         {

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

  252.             return -1;

  253.         }

  254.         else

  255.         {

  256.             // Only done when success

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

  258.         }

  259.     }

  260. 

  261. } // end of namespace

  262. 

  263. #ifdef __cplusplus

  264. extern "C"

  265. {

  266. #endif

  267. 

  268. #include "JackCompilerDeps.h"

  269. 

  270.     SERVER_EXPORT jack_driver_desc_t* driver_get_descriptor()

  271.     {

  272.         jack_driver_desc_t *desc;

  273.         unsigned int i;

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

  275. 

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

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

  278. 

  279.         desc->nparams = 13;

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

  281. 

  282.         i = 0;

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

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

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

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

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

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

  289. 

  290.         i++;

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

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

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

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

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

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

  297. 

  298.         i++;

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

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

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

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

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

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

  305. 

  306.         i++;

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

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

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

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

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

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

  313. 

  314.         i++;

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

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

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

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

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

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

  321. 

  322.         i++;

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

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

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

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

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

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

  329. 

  330.         i++;

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

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

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

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

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

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

  337. 

  338.         i++;

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

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

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

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

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

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

  345. 

  346.         i++;

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

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

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

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

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

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

  353. 

  354.         i++;

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

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

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

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

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

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

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

  362. 

  363.         i++;

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

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

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

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

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

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

  370. 

  371.         i++;

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

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

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

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

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

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

  378. 

  379.         i++;

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

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

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

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

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

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

  386. 

  387.         return desc;

  388.     }

  389. 

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

  391.     {

  392.         jack_nframes_t srate = 44100;

  393.         jack_nframes_t frames_per_interrupt = 512;

  394.         const char* capture_pcm_name = "";

  395.         const char* playback_pcm_name = "";

  396.         int capture = FALSE;

  397.         int playback = FALSE;

  398.         int chan_in = 0;

  399.         int chan_out = 0;

  400.         bool monitor = false;

  401.         const JSList *node;

  402.         const jack_driver_param_t *param;

  403.         jack_nframes_t systemic_input_latency = 0;

  404.         jack_nframes_t systemic_output_latency = 0;

  405.         PortAudioDevices* pa_devices = new PortAudioDevices();

  406. 

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

  408.         {

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

  410. 

  411.             switch (param->character)

  412.             {

  413. 

  414.             case 'd':

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

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

  417.                 break;

  418. 

  419.             case 'D':

  420.                 capture = TRUE;

  421.                 playback = TRUE;

  422.                 break;

  423. 

  424.             case 'c':

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

  426.                 break;

  427. 

  428.             case 'i':

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

  430.                 break;

  431. 

  432.             case 'o':

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

  434.                 break;

  435. 

  436.             case 'C':

  437.                 capture = TRUE;

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

  439.                 {

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

  441.                 }

  442.                 break;

  443. 

  444.             case 'P':

  445.                 playback = TRUE;

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

  447.                 {

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

  449.                 }

  450.                 break;

  451. 

  452.             case 'm':

  453.                 monitor = param->value.i;

  454.                 break;

  455. 

  456.             case 'r':

  457.                 srate = param->value.ui;

  458.                 break;

  459. 

  460.             case 'p':

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

  462.                 break;

  463. 

  464.             case 'I':

  465.                 systemic_input_latency = param->value.ui;

  466.                 break;

  467. 

  468.             case 'O':

  469.                 systemic_output_latency = param->value.ui;

  470.                 break;

  471. 

  472.             case 'l':

  473.                 pa_devices->DisplayDevicesNames();

  474.                 break;

  475.             }

  476.         }

  477. 

  478.         // duplex is the default

  479.         if (!capture && !playback)

  480.         {

  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