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

  91.                 goto error;

  92.         }

  93.         if (playing) {

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

  95.                 goto error;

  96.         }

  97. 

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

  99. 

  100.         //default channels number required

  101.         if (inchannels == 0) {

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

  103.             inchannels = in_max;

  104.         }

  105.         if (outchannels == 0) {

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

  107.             outchannels = out_max;

  108.         }

  109. 

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

  111.         if (inchannels > in_max) {

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

  113.             inchannels = in_max;

  114.         }

  115.         if (outchannels > out_max) {

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

  117.             outchannels = out_max;

  118.         }

  119. 

  120.         //in/out streams parametering

  121.         inputParameters.device = fInputDevice;

  122.         inputParameters.channelCount = inchannels;

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

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

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

  126.                                            : 0;

  127.         inputParameters.hostApiSpecificStreamInfo = NULL;

  128. 

  129.         outputParameters.device = fOutputDevice;

  130.         outputParameters.channelCount = outchannels;

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

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

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

  134.                                             : 0;

  135.         outputParameters.hostApiSpecificStreamInfo = NULL;

  136. 

  137.         err = Pa_OpenStream(&fStream,

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

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

  140.                             samplerate,

  141.                             buffer_size,

  142.                             paNoFlag,  // Clipping is on...

  143.                             Render,

  144.                             this);

  145.         if (err != paNoError) {

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

  147.             goto error;

  148.         }

  149. 

  150. #ifdef __APPLE__

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

  152.         fEngineControl->fComputation = 500 * 1000;

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

  154. #endif

  155. 

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

  157.         fCaptureChannels = inchannels;

  158.         fPlaybackChannels = outchannels;

  159. 

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

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

  162. 

  163.         strcpy(fCaptureDriverName, capture_driver_uid);

  164.         strcpy(fPlaybackDriverName, playback_driver_uid);

  165. 

  166.         return 0;

  167. 

  168. error:

  169.         JackAudioDriver::Close();

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

  171.         return -1;

  172.     }

  173. 

  174.     int JackPortAudioDriver::Close()

  175.     {

  176.         // Generic audio driver close

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

  178. 

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

  180.         Pa_CloseStream(fStream);

  181.         return res;

  182.     }

  183. 

  184.     int JackPortAudioDriver::Start()

  185.     {

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

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

  188.             PaError err = Pa_StartStream(fStream);

  189.             if (err == paNoError) {

  190.                 return 0;

  191.             }

  192.             JackAudioDriver::Stop();

  193.         }

  194.         return -1;

  195.     }

  196. 

  197.     int JackPortAudioDriver::Stop()

  198.     {

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

  200.         PaError err = Pa_StopStream(fStream);

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

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

  203.             res = -1;

  204.         }

  205.         return res;

  206.     }

  207. 

  208.     int JackPortAudioDriver::SetBufferSize(jack_nframes_t buffer_size)

  209.     {

  210.         PaError err;

  211.         PaStreamParameters inputParameters;

  212.         PaStreamParameters outputParameters;

  213. 

  214.         if ((err = Pa_CloseStream(fStream)) != paNoError) {

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

  216.             return -1;

  217.         }

  218. 

  219.         // Update parameters

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

  247.             return -1;

  248.         } else {

  249.             JackAudioDriver::SetBufferSize(buffer_size); // Generic change, never fails

  250.             // PortAudio specific

  251.             JackAudioDriver::UpdateLatencies();

  252.             return 0;

  253.         }

  254.     }

  255. 

  256. } // end of namespace

  257. 

  258. #ifdef __cplusplus

  259. extern "C"

  260. {

  261. #endif

  262. 

  263. #include "JackCompilerDeps.h"

  264. 

  265.     SERVER_EXPORT jack_driver_desc_t* driver_get_descriptor()

  266.     {

  267.         jack_driver_desc_t *desc;

  268.         unsigned int i;

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

  270. 

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

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

  273. 

  274.         desc->nparams = 13;

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

  276. 

  277.         i = 0;

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

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

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

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

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

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

  284. 

  285.         i++;

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

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

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

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

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

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

  292. 

  293.         i++;

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

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

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

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

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

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

  300. 

  301.         i++;

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

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

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

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

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

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

  308. 

  309.         i++;

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

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

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

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

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

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

  316. 

  317.         i++;

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

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

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

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

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

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

  324. 

  325.         i++;

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

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

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

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

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

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

  332. 

  333.         i++;

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

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

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

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

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

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

  340. 

  341.         i++;

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

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

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

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

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

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

  348. 

  349.         i++;

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

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

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

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

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

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

  356. 

  357.         i++;

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

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

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

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

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

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

  364. 

  365.         i++;

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

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

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

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

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

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

  372. 

  373.         i++;

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

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

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

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

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

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

  380. 

  381.         return desc;

  382.     }

  383. 

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

  385.     {

  386.         jack_nframes_t srate = 44100;

  387.         jack_nframes_t frames_per_interrupt = 512;

  388.         const char* capture_pcm_name = "";

  389.         const char* playback_pcm_name = "";

  390.         bool capture = false;

  391.         bool playback = false;

  392.         int chan_in = 0;

  393.         int chan_out = 0;

  394.         bool monitor = false;

  395.         const JSList *node;

  396.         const jack_driver_param_t *param;

  397.         jack_nframes_t systemic_input_latency = 0;

  398.         jack_nframes_t systemic_output_latency = 0;

  399.         PortAudioDevices* pa_devices = new PortAudioDevices();

  400. 

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

  402.         {

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

  404. 

  405.             switch (param->character)

  406.             {

  407. 

  408.             case 'd':

  409.                 capture_pcm_name = param->value.str;

  410.                 playback_pcm_name = param->value.str;

  411.                 break;

  412. 

  413.             case 'D':

  414.                 capture = true;

  415.                 playback = true;

  416.                 break;

  417. 

  418.             case 'c':

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

  420.                 break;

  421. 

  422.             case 'i':

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

  424.                 break;

  425. 

  426.             case 'o':

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

  428.                 break;

  429. 

  430.             case 'C':

  431.                 capture = true;

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

  433.                     capture_pcm_name = param->value.str;

  434.                 }

  435.                 break;

  436. 

  437.             case 'P':

  438.                 playback = TRUE;

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

  440.                     playback_pcm_name = param->value.str;

  441.                 }

  442.                 break;

  443. 

  444.             case 'm':

  445.                 monitor = param->value.i;

  446.                 break;

  447. 

  448.             case 'r':

  449.                 srate = param->value.ui;

  450.                 break;

  451. 

  452.             case 'p':

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

  454.                 break;

  455. 

  456.             case 'I':

  457.                 systemic_input_latency = param->value.ui;

  458.                 break;

  459. 

  460.             case 'O':

  461.                 systemic_output_latency = param->value.ui;

  462.                 break;

  463. 

  464.             case 'l':

  465.                 pa_devices->DisplayDevicesNames();

  466.                 break;

  467.             }

  468.         }

  469. 

  470.         // duplex is the default

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

  472.             capture = true;

  473.             playback = true;

  474.         }

  475. 

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

  477.         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)

  478.         {

  479.             return driver;

  480.         }

  481.         else

  482.         {

  483.             delete driver;

  484.             return NULL;

  485.         }

  486.     }

  487. 

  488. #ifdef __cplusplus

  489. }

  490. #endif