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Carla
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Carla/source/backend/plugin/dssi.cpp

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  1. /*

  2.  * Carla DSSI Plugin

  3.  * Copyright (C) 2011-2013 Filipe Coelho <falktx@falktx.com>

  4.  *

  5.  * This program is free software; you can redistribute it and/or

  6.  * modify it under the terms of the GNU General Public License as

  7.  * published by the Free Software Foundation; either version 2 of

  8.  * the License, or any later version.

  9.  *

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

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

  12.  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the

  13.  * GNU General Public License for more details.

  14.  *

  15.  * For a full copy of the GNU General Public License see the GPL.txt file

  16.  */

  17. 

  18. #include "carla_plugin_internal.hpp"

  19. 

  20. #ifdef WANT_DSSI

  21. 

  22. #include "carla_ladspa_utils.hpp"

  23. #include "dssi/dssi.h"

  24. 

  25. CARLA_BACKEND_START_NAMESPACE

  26. 

  27. class DssiPlugin : public CarlaPlugin

  28. {

  29. public:

  30.     DssiPlugin(CarlaEngine* const engine, const unsigned int id)

  31.         : CarlaPlugin(engine, id)

  32.     {

  33.         qDebug("DssiPlugin::DssiPlugin()");

  34. 

  35.         fHandle  = nullptr;

  36.         fHandle2 = nullptr;

  37.         fDescriptor = nullptr;

  38.         fDssiDescriptor = nullptr;

  39. 

  40.         fParamBuffers = nullptr;

  41. 

  42.         carla_zeroMem(fMidiEvents, sizeof(snd_seq_event_t)*MAX_MIDI_EVENTS);

  43.     }

  44. 

  45.     ~DssiPlugin()

  46.     {

  47.         qDebug("DssiPlugin::~DssiPlugin()");

  48. 

  49.         // close UI

  50.         if (fHints & PLUGIN_HAS_GUI)

  51.         {

  52.             showGui(false);

  53. 

  54.             if (kData->osc.thread != nullptr)

  55.             {

  56.                 // Wait a bit first, try safe quit, then force kill

  57.                 if (kData->osc.thread->isRunning() && ! kData->osc.thread->wait(kData->engine->getOptions().oscUiTimeout))

  58.                 {

  59.                     qWarning("Failed to properly stop DSSI GUI thread");

  60.                     kData->osc.thread->terminate();

  61.                 }

  62. 

  63.                 delete kData->osc.thread;

  64.             }

  65.         }

  66. 

  67.         if (fDescriptor != nullptr)

  68.         {

  69.             if (fDescriptor->deactivate != nullptr && kData->activeBefore)

  70.             {

  71.                 if (fHandle != nullptr)

  72.                     fDescriptor->deactivate(fHandle);

  73.                 if (fHandle2 != nullptr)

  74.                     fDescriptor->deactivate(fHandle2);

  75.             }

  76. 

  77.             if (fDescriptor->cleanup != nullptr)

  78.             {

  79.                 if (fHandle != nullptr)

  80.                     fDescriptor->cleanup(fHandle);

  81.                 if (fHandle2 != nullptr)

  82.                     fDescriptor->cleanup(fHandle2);

  83.             }

  84. 

  85.             fHandle  = nullptr;

  86.             fHandle2 = nullptr;

  87.             fDescriptor = nullptr;

  88.             fDssiDescriptor = nullptr;

  89.         }

  90. 

  91.         if (fParamBuffers != nullptr)

  92.         {

  93.             delete[] fParamBuffers;

  94.             fParamBuffers = nullptr;

  95.         }

  96.     }

  97. 

  98.     // -------------------------------------------------------------------

  99.     // Information (base)

  100. 

  101.     PluginType type() const

  102.     {

  103.         return PLUGIN_DSSI;

  104.     }

  105. 

  106.     PluginCategory category() const

  107.     {

  108.         if (fHints & PLUGIN_IS_SYNTH)

  109.             return PLUGIN_CATEGORY_SYNTH;

  110. 

  111.         return getPluginCategoryFromName(fName);

  112.     }

  113. 

  114.     long uniqueId() const

  115.     {

  116.         CARLA_ASSERT(fDescriptor != nullptr);

  117. 

  118.         return (fDescriptor != nullptr) ? fDescriptor->UniqueID : 0;

  119.     }

  120. 

  121.     // -------------------------------------------------------------------

  122.     // Information (current data)

  123. 

  124.     int32_t chunkData(void** const dataPtr)

  125.     {

  126.         CARLA_ASSERT(fHints & PLUGIN_USES_CHUNKS);

  127.         CARLA_ASSERT(fDssiDescriptor != nullptr);

  128.         CARLA_ASSERT(fDssiDescriptor->get_custom_data != nullptr);

  129.         CARLA_ASSERT(fHandle != nullptr);

  130.         CARLA_ASSERT(fHandle2 == nullptr);

  131.         CARLA_ASSERT(dataPtr != nullptr);

  132. 

  133.         unsigned long dataSize = 0;

  134. 

  135.         if (fDssiDescriptor->get_custom_data != nullptr && fDssiDescriptor->get_custom_data(fHandle, dataPtr, &dataSize))

  136.             return dataSize;

  137. 

  138.         return 0;

  139.     }

  140. 

  141.     // -------------------------------------------------------------------

  142.     // Information (per-plugin data)

  143. 

  144.     float getParameterValue(const uint32_t parameterId)

  145.     {

  146.         CARLA_ASSERT(parameterId < kData->param.count);

  147. 

  148.         return fParamBuffers[parameterId];

  149.     }

  150. 

  151.     void getLabel(char* const strBuf)

  152.     {

  153.         CARLA_ASSERT(fDescriptor != nullptr);

  154. 

  155.         if (fDescriptor != nullptr && fDescriptor->Label != nullptr)

  156.             std::strncpy(strBuf, fDescriptor->Label, STR_MAX);

  157.         else

  158.             CarlaPlugin::getLabel(strBuf);

  159.     }

  160. 

  161.     void getMaker(char* const strBuf)

  162.     {

  163.         CARLA_ASSERT(fDescriptor != nullptr);

  164. 

  165.         if (fDescriptor != nullptr && fDescriptor->Maker != nullptr)

  166.             std::strncpy(strBuf, fDescriptor->Maker, STR_MAX);

  167.         else

  168.             CarlaPlugin::getMaker(strBuf);

  169.     }

  170. 

  171.     void getCopyright(char* const strBuf)

  172.     {

  173.         CARLA_ASSERT(fDescriptor != nullptr);

  174. 

  175.         if (fDescriptor != nullptr && fDescriptor->Copyright != nullptr)

  176.             std::strncpy(strBuf, fDescriptor->Copyright, STR_MAX);

  177.         else

  178.             CarlaPlugin::getCopyright(strBuf);

  179.     }

  180. 

  181.     void getRealName(char* const strBuf)

  182.     {

  183.         CARLA_ASSERT(fDescriptor != nullptr);

  184. 

  185.         if (fDescriptor != nullptr && fDescriptor->Name != nullptr)

  186.             std::strncpy(strBuf, fDescriptor->Name, STR_MAX);

  187.         else

  188.             CarlaPlugin::getRealName(strBuf);

  189.     }

  190. 

  191.     void getParameterName(const uint32_t parameterId, char* const strBuf)

  192.     {

  193.         CARLA_ASSERT(fDescriptor != nullptr);

  194.         CARLA_ASSERT(parameterId < kData->param.count);

  195. 

  196.         const int32_t rindex = kData->param.data[parameterId].rindex;

  197. 

  198.         if (fDescriptor != nullptr && rindex < static_cast<int32_t>(fDescriptor->PortCount))

  199.             std::strncpy(strBuf, fDescriptor->PortNames[rindex], STR_MAX);

  200.         else

  201.             CarlaPlugin::getParameterName(parameterId, strBuf);

  202.     }

  203. 

  204.     // -------------------------------------------------------------------

  205.     // Set data (plugin-specific stuff)

  206. 

  207.     void setParameterValue(const uint32_t parameterId, const float value, const bool sendGui, const bool sendOsc, const bool sendCallback)

  208.     {

  209.         CARLA_ASSERT(parameterId < kData->param.count);

  210. 

  211.         const float fixedValue = kData->param.fixValue(parameterId, value);

  212.         fParamBuffers[parameterId] = fixedValue;

  213. 

  214.         CarlaPlugin::setParameterValue(parameterId, fixedValue, sendGui, sendOsc, sendCallback);

  215.     }

  216. 

  217.     void setCustomData(const char* const type, const char* const key, const char* const value, const bool sendGui)

  218.     {

  219.         CARLA_ASSERT(fDescriptor != nullptr);

  220.         CARLA_ASSERT(fHandle != nullptr);

  221.         CARLA_ASSERT(type != nullptr);

  222.         CARLA_ASSERT(key != nullptr);

  223.         CARLA_ASSERT(value != nullptr);

  224. 

  225.         if (type == nullptr)

  226.             return qCritical("DssiPlugin::setCustomData(\"%s\", \"%s\", \"%s\", %s) - type is invalid", type, key, value, bool2str(sendGui));

  227. 

  228.         if (std::strcmp(type, CUSTOM_DATA_STRING) != 0)

  229.             return qCritical("DssiPlugin::setCustomData(\"%s\", \"%s\", \"%s\", %s) - type is not string", type, key, value, bool2str(sendGui));

  230. 

  231.         if (key == nullptr)

  232.             return qCritical("DssiPlugin::setCustomData(\"%s\", \"%s\", \"%s\", %s) - key is null", type, key, value, bool2str(sendGui));

  233. 

  234.         if (value == nullptr)

  235.             return qCritical("DssiPlugin::setCustomData(\"%s\", \"%s\", \"%s\", %s) - value is null", type, key, value, bool2str(sendGui));

  236. 

  237.         if (fDssiDescriptor->configure != nullptr)

  238.         {

  239.             fDssiDescriptor->configure(fHandle, key, value);

  240. 

  241.             if (fHandle2)

  242.                 fDssiDescriptor->configure(fHandle2, key, value);

  243.         }

  244. 

  245.         if (sendGui && kData->osc.data.target != nullptr)

  246.             osc_send_configure(&kData->osc.data, key, value);

  247. 

  248.         if (strcmp(key, "reloadprograms") == 0 || strcmp(key, "load") == 0 || strncmp(key, "patches", 7) == 0)

  249.         {

  250.             const ScopedDisabler m(this); // FIXME

  251.             reloadPrograms(false);

  252.         }

  253. 

  254.         CarlaPlugin::setCustomData(type, key, value, sendGui);

  255.     }

  256. 

  257.     void setChunkData(const char* const stringData)

  258.     {

  259.         CARLA_ASSERT(fHints & PLUGIN_USES_CHUNKS);

  260.         CARLA_ASSERT(fDssiDescriptor != nullptr);

  261.         CARLA_ASSERT(fDssiDescriptor->set_custom_data != nullptr);

  262.         CARLA_ASSERT(fHandle != nullptr);

  263.         CARLA_ASSERT(fHandle2 == nullptr);

  264.         CARLA_ASSERT(stringData != nullptr);

  265. 

  266.         if (fDssiDescriptor->set_custom_data == nullptr)

  267.             return;

  268. 

  269.         // FIXME

  270.         fChunk = QByteArray::fromBase64(QByteArray(stringData));

  271.         //fChunk.toBase64();

  272. 

  273.         if (kData->engine->isOffline())

  274.         {

  275.             //const CarlaEngine::ScopedLocker m(kData->engine);

  276.             fDssiDescriptor->set_custom_data(fHandle, fChunk.data(), fChunk.size());

  277.         }

  278.         else

  279.         {

  280.             const CarlaPlugin::ScopedDisabler m(this);

  281.             fDssiDescriptor->set_custom_data(fHandle, fChunk.data(), fChunk.size());

  282.         }

  283.     }

  284. 

  285.     void setMidiProgram(int32_t index, const bool sendGui, const bool sendOsc, const bool sendCallback, const bool block)

  286.     {

  287.         CARLA_ASSERT(index >= -1 && index < static_cast<int32_t>(kData->midiprog.count));

  288. 

  289.         if (index < -1)

  290.             index = -1;

  291.         else if (index > static_cast<int32_t>(kData->midiprog.count))

  292.             return;

  293. 

  294.         // FIXME

  295.         if (index >= 0)

  296.         {

  297.             const uint32_t bank    = kData->midiprog.data[index].bank;

  298.             const uint32_t program = kData->midiprog.data[index].program;

  299. 

  300.             if (kData->engine->isOffline())

  301.             {

  302.                 //const CarlaEngine::ScopedLocker m(x_engine, block);

  303.                 fDssiDescriptor->select_program(fHandle, bank, program);

  304. 

  305.                 if (fHandle)

  306.                     fDssiDescriptor->select_program(fHandle2, bank, program);

  307.             }

  308.             else

  309.             {

  310.                 //const ScopedDisabler m(this, block);

  311. 

  312.                 fDssiDescriptor->select_program(fHandle, bank, program);

  313. 

  314.                 if (fHandle2)

  315.                     fDssiDescriptor->select_program(fHandle2, bank, program);

  316.             }

  317.         }

  318. 

  319.         CarlaPlugin::setMidiProgram(index, sendGui, sendOsc, sendCallback, block);

  320.     }

  321. 

  322.     // -------------------------------------------------------------------

  323.     // Set gui stuff

  324. 

  325.     void showGui(const bool yesNo)

  326.     {

  327.         CARLA_ASSERT(kData->osc.thread != nullptr);

  328. 

  329.         if (kData->osc.thread == nullptr)

  330.         {

  331.             qCritical("DssiPlugin::showGui(%s) - attempt to show gui, but it does not exist!", bool2str(yesNo));

  332.             return;

  333.         }

  334. 

  335.         if (yesNo)

  336.         {

  337.             kData->osc.thread->start();

  338.         }

  339.         else

  340.         {

  341.             if (kData->osc.data.target != nullptr)

  342.             {

  343.                 osc_send_hide(&kData->osc.data);

  344.                 osc_send_quit(&kData->osc.data);

  345.                 kData->osc.data.free();

  346.             }

  347. 

  348.             if (! kData->osc.thread->wait(500))

  349.                 kData->osc.thread->quit();

  350.         }

  351.     }

  352. 

  353.     // -------------------------------------------------------------------

  354.     // Plugin state

  355. 

  356.     void reload()

  357.     {

  358.         qDebug("DssiPlugin::reload() - start");

  359.         CARLA_ASSERT(kData->engine != nullptr);

  360.         CARLA_ASSERT(fDescriptor != nullptr);

  361.         CARLA_ASSERT(fHandle != nullptr);

  362. 

  363.         const ProcessMode processMode(kData->engine->getProccessMode());

  364. 

  365.         // Safely disable plugin for reload

  366.         const ScopedDisabler sd(this);

  367. 

  368.         if (kData->client->isActive())

  369.             kData->client->deactivate();

  370. 

  371.         deleteBuffers();

  372. 

  373.         const double sampleRate = kData->engine->getSampleRate();

  374.         const unsigned long portCount = fDescriptor->PortCount;

  375. 

  376.         uint32_t aIns, aOuts, mIns, params, j;

  377.         aIns = aOuts = mIns = params = 0;

  378. 

  379.         bool forcedStereoIn, forcedStereoOut;

  380.         forcedStereoIn = forcedStereoOut = false;

  381. 

  382.         bool needsCtrlIn, needsCtrlOut;

  383.         needsCtrlIn = needsCtrlOut = false;

  384. 

  385.         for (unsigned long i=0; i < portCount; i++)

  386.         {

  387.             const LADSPA_PortDescriptor portType = fDescriptor->PortDescriptors[i];

  388. 

  389.             if (LADSPA_IS_PORT_AUDIO(portType))

  390.             {

  391.                 if (LADSPA_IS_PORT_INPUT(portType))

  392.                     aIns += 1;

  393.                 else if (LADSPA_IS_PORT_OUTPUT(portType))

  394.                     aOuts += 1;

  395.             }

  396.             else if (LADSPA_IS_PORT_CONTROL(portType))

  397.                 params += 1;

  398.         }

  399. 

  400.         if ((fOptions & PLUGIN_OPTION_FORCE_STEREO) != 0 && (aIns == 1 || aOuts == 1))

  401.         {

  402.             if (fHandle2 == nullptr)

  403.                 fHandle2 = fDescriptor->instantiate(fDescriptor, sampleRate);

  404. 

  405.             if (aIns == 1)

  406.             {

  407.                 aIns = 2;

  408.                 forcedStereoIn = true;

  409.             }

  410. 

  411.             if (aOuts == 1)

  412.             {

  413.                 aOuts = 2;

  414.                 forcedStereoOut = true;

  415.             }

  416.         }

  417. 

  418.         if (fDssiDescriptor->run_synth != nullptr || fDssiDescriptor->run_multiple_synths != nullptr)

  419.         {

  420.             mIns = 1;

  421.             needsCtrlIn = true;

  422.         }

  423. 

  424.         if (aIns > 0)

  425.         {

  426.             kData->audioIn.createNew(aIns);

  427.         }

  428. 

  429.         if (aOuts > 0)

  430.         {

  431.             kData->audioOut.createNew(aOuts);

  432.         }

  433. 

  434.         if (params > 0)

  435.         {

  436.             kData->param.createNew(params);

  437.             fParamBuffers = new float[params];

  438.         }

  439. 

  440.         const int   portNameSize = kData->engine->maxPortNameSize();

  441.         CarlaString portName;

  442. 

  443.         for (unsigned long i=0, iAudioIn=0, iAudioOut=0, iCtrl=0; i < portCount; i++)

  444.         {

  445.             const LADSPA_PortDescriptor portType      = fDescriptor->PortDescriptors[i];

  446.             const LADSPA_PortRangeHint portRangeHints = fDescriptor->PortRangeHints[i];

  447. 

  448.             if (LADSPA_IS_PORT_AUDIO(portType))

  449.             {

  450.                 portName.clear();

  451. 

  452.                 if (processMode == PROCESS_MODE_SINGLE_CLIENT)

  453.                 {

  454.                     portName  = fName;

  455.                     portName += ":";

  456.                 }

  457. 

  458.                 portName += fDescriptor->PortNames[i];

  459.                 portName.truncate(portNameSize);

  460. 

  461.                 if (LADSPA_IS_PORT_INPUT(portType))

  462.                 {

  463.                     j = iAudioIn++;

  464.                     kData->audioIn.ports[j].port   = (CarlaEngineAudioPort*)kData->client->addPort(kEnginePortTypeAudio, portName, true);

  465.                     kData->audioIn.ports[j].rindex = i;

  466. 

  467.                     if (forcedStereoIn)

  468.                     {

  469.                         portName += "_2";

  470.                         kData->audioIn.ports[1].port   = (CarlaEngineAudioPort*)kData->client->addPort(kEnginePortTypeAudio, portName, true);

  471.                         kData->audioIn.ports[1].rindex = i;

  472.                     }

  473.                 }

  474.                 else if (LADSPA_IS_PORT_OUTPUT(portType))

  475.                 {

  476.                     j = iAudioOut++;

  477.                     kData->audioOut.ports[j].port   = (CarlaEngineAudioPort*)kData->client->addPort(kEnginePortTypeAudio, portName, false);

  478.                     kData->audioOut.ports[j].rindex = i;

  479.                     needsCtrlIn = true;

  480. 

  481.                     if (forcedStereoOut)

  482.                     {

  483.                         portName += "_2";

  484.                         kData->audioOut.ports[1].port   = (CarlaEngineAudioPort*)kData->client->addPort(kEnginePortTypeAudio, portName, false);

  485.                         kData->audioOut.ports[1].rindex = i;

  486.                     }

  487.                 }

  488.                 else

  489.                     qWarning("WARNING - Got a broken Port (Audio, but not input or output)");

  490.             }

  491.             else if (LADSPA_IS_PORT_CONTROL(portType))

  492.             {

  493.                 j = iCtrl++;

  494.                 kData->param.data[j].index  = j;

  495.                 kData->param.data[j].rindex = i;

  496.                 kData->param.data[j].hints  = 0x0;

  497.                 kData->param.data[j].midiChannel = 0;

  498.                 kData->param.data[j].midiCC = -1;

  499. 

  500.                 float min, max, def, step, stepSmall, stepLarge;

  501. 

  502.                 // min value

  503.                 if (LADSPA_IS_HINT_BOUNDED_BELOW(portRangeHints.HintDescriptor))

  504.                     min = portRangeHints.LowerBound;

  505.                 else

  506.                     min = 0.0f;

  507. 

  508.                 // max value

  509.                 if (LADSPA_IS_HINT_BOUNDED_ABOVE(portRangeHints.HintDescriptor))

  510.                     max = portRangeHints.UpperBound;

  511.                 else

  512.                     max = 1.0f;

  513. 

  514.                 if (min > max)

  515.                     max = min;

  516.                 else if (max < min)

  517.                     min = max;

  518. 

  519.                 if (max - min == 0.0f)

  520.                 {

  521.                     qWarning("Broken plugin parameter: max - min == 0");

  522.                     max = min + 0.1f;

  523.                 }

  524. 

  525.                 // default value

  526.                 def = get_default_ladspa_port_value(portRangeHints.HintDescriptor, min, max);

  527. 

  528.                 if (def < min)

  529.                     def = min;

  530.                 else if (def > max)

  531.                     def = max;

  532. 

  533.                 if (LADSPA_IS_HINT_SAMPLE_RATE(portRangeHints.HintDescriptor))

  534.                 {

  535.                     min *= sampleRate;

  536.                     max *= sampleRate;

  537.                     def *= sampleRate;

  538.                     kData->param.data[j].hints |= PARAMETER_USES_SAMPLERATE;

  539.                 }

  540. 

  541.                 if (LADSPA_IS_HINT_TOGGLED(portRangeHints.HintDescriptor))

  542.                 {

  543.                     step = max - min;

  544.                     stepSmall = step;

  545.                     stepLarge = step;

  546.                     kData->param.data[j].hints |= PARAMETER_IS_BOOLEAN;

  547.                 }

  548.                 else if (LADSPA_IS_HINT_INTEGER(portRangeHints.HintDescriptor))

  549.                 {

  550.                     step = 1.0f;

  551.                     stepSmall = 1.0f;

  552.                     stepLarge = 10.0f;

  553.                     kData->param.data[j].hints |= PARAMETER_IS_INTEGER;

  554.                 }

  555.                 else

  556.                 {

  557.                     float range = max - min;

  558.                     step = range/100.0f;

  559.                     stepSmall = range/1000.0f;

  560.                     stepLarge = range/10.0f;

  561.                 }

  562. 

  563.                 if (LADSPA_IS_PORT_INPUT(portType))

  564.                 {

  565.                     kData->param.data[j].type   = PARAMETER_INPUT;

  566.                     kData->param.data[j].hints |= PARAMETER_IS_ENABLED;

  567.                     kData->param.data[j].hints |= PARAMETER_IS_AUTOMABLE;

  568.                     needsCtrlIn = true;

  569. 

  570.                     // MIDI CC value

  571.                     if (fDssiDescriptor->get_midi_controller_for_port != nullptr)

  572.                     {

  573.                         int controller = fDssiDescriptor->get_midi_controller_for_port(fHandle, i);

  574.                         if (DSSI_CONTROLLER_IS_SET(controller) && DSSI_IS_CC(controller))

  575.                         {

  576.                             int16_t cc = DSSI_CC_NUMBER(controller);

  577.                             if (! MIDI_IS_CONTROL_BANK_SELECT(cc))

  578.                                 kData->param.data[j].midiCC = cc;

  579.                         }

  580.                     }

  581.                 }

  582.                 else if (LADSPA_IS_PORT_OUTPUT(portType))

  583.                 {

  584.                     if (std::strcmp(fDescriptor->PortNames[i], "latency") == 0 || std::strcmp(fDescriptor->PortNames[i], "_latency") == 0)

  585.                     {

  586.                         min = 0.0f;

  587.                         max = sampleRate;

  588.                         def = 0.0f;

  589.                         step = 1.0f;

  590.                         stepSmall = 1.0f;

  591.                         stepLarge = 1.0f;

  592. 

  593.                         kData->param.data[j].type  = PARAMETER_LATENCY;

  594.                         kData->param.data[j].hints = 0;

  595.                     }

  596.                     else if (std::strcmp(fDescriptor->PortNames[i], "_sample-rate") == 0)

  597.                     {

  598.                         def = sampleRate;

  599.                         step = 1.0f;

  600.                         stepSmall = 1.0f;

  601.                         stepLarge = 1.0f;

  602. 

  603.                         kData->param.data[j].type  = PARAMETER_SAMPLE_RATE;

  604.                         kData->param.data[j].hints = 0;

  605.                     }

  606.                     else

  607.                     {

  608.                         kData->param.data[j].type   = PARAMETER_OUTPUT;

  609.                         kData->param.data[j].hints |= PARAMETER_IS_ENABLED;

  610.                         kData->param.data[j].hints |= PARAMETER_IS_AUTOMABLE;

  611.                         needsCtrlOut = true;

  612.                     }

  613.                 }

  614.                 else

  615.                 {

  616.                     kData->param.data[j].type = PARAMETER_UNKNOWN;

  617.                     qWarning("WARNING - Got a broken Port (Control, but not input or output)");

  618.                 }

  619. 

  620.                 // extra parameter hints

  621.                 if (LADSPA_IS_HINT_LOGARITHMIC(portRangeHints.HintDescriptor))

  622.                     kData->param.data[j].hints |= PARAMETER_IS_LOGARITHMIC;

  623. 

  624.                 kData->param.ranges[j].min = min;

  625.                 kData->param.ranges[j].max = max;

  626.                 kData->param.ranges[j].def = def;

  627.                 kData->param.ranges[j].step = step;

  628.                 kData->param.ranges[j].stepSmall = stepSmall;

  629.                 kData->param.ranges[j].stepLarge = stepLarge;

  630. 

  631.                 // Start parameters in their default values

  632.                 fParamBuffers[j] = def;

  633. 

  634.                 fDescriptor->connect_port(fHandle, i, &fParamBuffers[j]);

  635. 

  636.                 if (fHandle2 != nullptr)

  637.                     fDescriptor->connect_port(fHandle2, i, &fParamBuffers[j]);

  638.             }

  639.             else

  640.             {

  641.                 // Not Audio or Control

  642.                 qCritical("ERROR - Got a broken Port (neither Audio or Control)");

  643. 

  644.                 fDescriptor->connect_port(fHandle, i, nullptr);

  645. 

  646.                 if (fHandle2 != nullptr)

  647.                     fDescriptor->connect_port(fHandle2, i, nullptr);

  648.             }

  649.         }

  650. 

  651.         if (needsCtrlIn)

  652.         {

  653.             portName.clear();

  654. 

  655.             if (processMode == PROCESS_MODE_SINGLE_CLIENT)

  656.             {

  657.                 portName  = fName;

  658.                 portName += ":";

  659.             }

  660. 

  661.             portName += "event-in";

  662.             portName.truncate(portNameSize);

  663. 

  664.             kData->event.portIn = (CarlaEngineEventPort*)kData->client->addPort(kEnginePortTypeEvent, portName, true);

  665.         }

  666. 

  667.         if (needsCtrlOut)

  668.         {

  669.             portName.clear();

  670. 

  671.             if (processMode == PROCESS_MODE_SINGLE_CLIENT)

  672.             {

  673.                 portName  = fName;

  674.                 portName += ":";

  675.             }

  676. 

  677.             portName += "event-out";

  678.             portName.truncate(portNameSize);

  679. 

  680.             kData->event.portOut = (CarlaEngineEventPort*)kData->client->addPort(kEnginePortTypeEvent, portName, false);

  681.         }

  682. 

  683.         // plugin checks

  684.         fHints &= ~(PLUGIN_IS_SYNTH | PLUGIN_USES_CHUNKS | PLUGIN_CAN_DRYWET | PLUGIN_CAN_VOLUME | PLUGIN_CAN_BALANCE | PLUGIN_CAN_FORCE_STEREO);

  685. 

  686.         if (mIns == 1 && aIns == 0 && aOuts > 0)

  687.             fHints |= PLUGIN_IS_SYNTH;

  688. 

  689.         if (kData->engine->getOptions().useDssiVstChunks && QString(fFilename).endsWith("dssi-vst.so", Qt::CaseInsensitive))

  690.         {

  691.             if (fDssiDescriptor->get_custom_data && fDssiDescriptor->set_custom_data)

  692.                 fHints |= PLUGIN_USES_CHUNKS;

  693.         }

  694. 

  695.         if (aOuts > 0 && (aIns == aOuts || aIns == 1))

  696.             fHints |= PLUGIN_CAN_DRYWET;

  697. 

  698.         if (aOuts > 0)

  699.             fHints |= PLUGIN_CAN_VOLUME;

  700. 

  701.         if (aOuts >= 2 && aOuts % 2 == 0)

  702.             fHints |= PLUGIN_CAN_BALANCE;

  703. 

  704.         if (aIns <= 2 && aOuts <= 2 && (aIns == aOuts || aIns == 0 || aOuts == 0))

  705.             fHints |= PLUGIN_CAN_FORCE_STEREO;

  706. 

  707.         // check latency

  708.         if (fHints & PLUGIN_CAN_DRYWET)

  709.         {

  710.             for (uint32_t i=0; i < kData->param.count; i++)

  711.             {

  712.                 if (kData->param.data[i].type != PARAMETER_LATENCY)

  713.                     continue;

  714. 

  715.                 // we need to pre-run the plugin so it can update its latency control-port

  716. 

  717.                 float tmpIn[aIns][2];

  718.                 float tmpOut[aOuts][2];

  719. 

  720.                 for (j=0; j < aIns; j++)

  721.                 {

  722.                     tmpIn[j][0] = 0.0f;

  723.                     tmpIn[j][1] = 0.0f;

  724. 

  725.                     fDescriptor->connect_port(fHandle, kData->audioIn.ports[j].rindex, tmpIn[j]);

  726.                 }

  727. 

  728.                 for (j=0; j < aOuts; j++)

  729.                 {

  730.                     tmpOut[j][0] = 0.0f;

  731.                     tmpOut[j][1] = 0.0f;

  732. 

  733.                     fDescriptor->connect_port(fHandle, kData->audioOut.ports[j].rindex, tmpOut[j]);

  734.                 }

  735. 

  736.                 if (fDescriptor->activate != nullptr)

  737.                     fDescriptor->activate(fHandle);

  738. 

  739.                 fDescriptor->run(fHandle, 2);

  740. 

  741.                 if (fDescriptor->deactivate != nullptr)

  742.                     fDescriptor->deactivate(fHandle);

  743. 

  744.                 const uint32_t latency = std::rint(fParamBuffers[i]);

  745. 

  746.                 if (kData->latency != latency)

  747.                 {

  748.                     kData->latency = latency;

  749.                     kData->client->setLatency(latency);

  750.                     recreateLatencyBuffers();

  751.                 }

  752. 

  753.                 break;

  754.             }

  755.         }

  756. 

  757.         reloadPrograms(true);

  758. 

  759.         kData->client->activate();

  760. 

  761.         qDebug("DssiPlugin::reload() - end");

  762.     }

  763. 

  764.     void reloadPrograms(const bool init)

  765.     {

  766.         qDebug("DssiPlugin::reloadPrograms(%s)", bool2str(init));

  767.         uint32_t i, oldCount = kData->midiprog.count;

  768. 

  769.         // Delete old programs

  770.         kData->midiprog.clear();

  771. 

  772.         // Query new programs

  773.         uint32_t count = 0;

  774.         if (fDssiDescriptor->get_program != nullptr && fDssiDescriptor->select_program != nullptr)

  775.         {

  776.             while (fDssiDescriptor->get_program(fHandle, count))

  777.                 count++;

  778.         }

  779. 

  780.         if (count > 0)

  781.             kData->midiprog.createNew(count);

  782. 

  783.         // Update data

  784.         for (i=0; i < kData->midiprog.count; i++)

  785.         {

  786.             const DSSI_Program_Descriptor* const pdesc = fDssiDescriptor->get_program(fHandle, i);

  787.             CARLA_ASSERT(pdesc != nullptr);

  788.             CARLA_ASSERT(pdesc->Name != nullptr);

  789. 

  790.             kData->midiprog.data[i].bank    = pdesc->Bank;

  791.             kData->midiprog.data[i].program = pdesc->Program;

  792.             kData->midiprog.data[i].name    = carla_strdup(pdesc->Name);

  793.         }

  794. 

  795. #ifndef BUILD_BRIDGE

  796.         // Update OSC Names

  797.         if (kData->engine->isOscControlRegistered())

  798.         {

  799.             kData->engine->osc_send_control_set_midi_program_count(fId, kData->midiprog.count);

  800. 

  801.             for (i=0; i < kData->midiprog.count; i++)

  802.                 kData->engine->osc_send_control_set_midi_program_data(fId, i, kData->midiprog.data[i].bank, kData->midiprog.data[i].program, kData->midiprog.data[i].name);

  803.         }

  804. #endif

  805. 

  806.         if (init)

  807.         {

  808.             if (kData->midiprog.count > 0)

  809.                 setMidiProgram(0, false, false, false, true);

  810.         }

  811.         else

  812.         {

  813.             kData->engine->callback(CALLBACK_RELOAD_PROGRAMS, fId, 0, 0, 0.0f, nullptr);

  814. 

  815.             // Check if current program is invalid

  816.             bool programChanged = false;

  817. 

  818.             if (kData->midiprog.count == oldCount+1)

  819.             {

  820.                 // one midi program added, probably created by user

  821.                 kData->midiprog.current = oldCount;

  822.                 programChanged = true;

  823.             }

  824.             else if (kData->midiprog.current >= static_cast<int32_t>(kData->midiprog.count))

  825.             {

  826.                 // current midi program > count

  827.                 kData->midiprog.current = 0;

  828.                 programChanged = true;

  829.             }

  830.             else if (kData->midiprog.current < 0 && kData->midiprog.count > 0)

  831.             {

  832.                 // programs exist now, but not before

  833.                 kData->midiprog.current = 0;

  834.                 programChanged = true;

  835.             }

  836.             else if (kData->midiprog.current >= 0 && kData->midiprog.count == 0)

  837.             {

  838.                 // programs existed before, but not anymore

  839.                 kData->midiprog.current = -1;

  840.                 programChanged = true;

  841.             }

  842. 

  843.             if (programChanged)

  844.                 setMidiProgram(kData->midiprog.current, true, true, true, true);

  845.         }

  846.     }

  847. 

  848.     // -------------------------------------------------------------------

  849.     // Plugin processing

  850. 

  851.     void process(float** const inBuffer, float** const outBuffer, const uint32_t frames, const uint32_t framesOffset)

  852.     {

  853.         uint32_t i, k;

  854.         unsigned long midiEventCount = 0;

  855. 

  856.         // --------------------------------------------------------------------------------------------------------

  857.         // Check if active

  858. 

  859.         if (! kData->active)

  860.         {

  861.             // disable any output sound

  862.             for (i=0; i < kData->audioOut.count; i++)

  863.                 carla_zeroFloat(outBuffer[i], frames);

  864. 

  865.             if (kData->activeBefore)

  866.             {

  867.                 if (fDescriptor->deactivate != nullptr)

  868.                 {

  869.                     fDescriptor->deactivate(fHandle);

  870. 

  871.                     if (fHandle2 != nullptr)

  872.                         fDescriptor->deactivate(fHandle2);

  873.                 }

  874.             }

  875. 

  876.             kData->activeBefore = kData->active;

  877.             return;

  878.         }

  879. 

  880.         // --------------------------------------------------------------------------------------------------------

  881.         // Check if active before

  882. 

  883.         if (! kData->activeBefore)

  884.         {

  885.             if (kData->event.portIn != nullptr)

  886.             {

  887.                 for (k=0, i=MAX_MIDI_CHANNELS; k < MAX_MIDI_CHANNELS; k++)

  888.                 {

  889.                     carla_zeroStruct<snd_seq_event_t>(fMidiEvents[k]);

  890.                     carla_zeroStruct<snd_seq_event_t>(fMidiEvents[k+i]);

  891. 

  892.                     fMidiEvents[k].type = SND_SEQ_EVENT_CONTROLLER;

  893.                     fMidiEvents[k].data.control.channel = k;

  894.                     fMidiEvents[k].data.control.param   = MIDI_CONTROL_ALL_SOUND_OFF;

  895. 

  896.                     fMidiEvents[k+i].type = SND_SEQ_EVENT_CONTROLLER;

  897.                     fMidiEvents[k+i].data.control.channel = k;

  898.                     fMidiEvents[k+i].data.control.param   = MIDI_CONTROL_ALL_NOTES_OFF;

  899.                 }

  900. 

  901.                 midiEventCount = MAX_MIDI_CHANNELS*2;

  902.             }

  903. 

  904.             if (kData->latency > 0)

  905.             {

  906.                 for (i=0; i < kData->audioIn.count; i++)

  907.                     carla_zeroFloat(kData->latencyBuffers[i], kData->latency);

  908.             }

  909. 

  910.             if (fDescriptor->activate != nullptr)

  911.             {

  912.                 fDescriptor->activate(fHandle);

  913. 

  914.                 if (fHandle2 != nullptr)

  915.                     fDescriptor->activate(fHandle2);

  916.             }

  917.         }

  918. 

  919.         // --------------------------------------------------------------------------------------------------------

  920.         // Event Input and Processing

  921. 

  922.         else if (kData->event.portIn != nullptr)

  923.         {

  924.             // ----------------------------------------------------------------------------------------------------

  925.             // MIDI Input (External)

  926. 

  927.             if (kData->extNotes.mutex.tryLock())

  928.             {

  929.                 while (midiEventCount < MAX_MIDI_EVENTS && ! kData->extNotes.data.isEmpty())

  930.                 {

  931.                     const ExternalMidiNote& note = kData->extNotes.data.getFirst(true);

  932. 

  933.                     CARLA_ASSERT(note.channel >= 0);

  934. 

  935.                     carla_zeroStruct<snd_seq_event_t>(fMidiEvents[midiEventCount]);

  936. 

  937.                     fMidiEvents[midiEventCount].type               = (note.velo > 0) ? SND_SEQ_EVENT_NOTEON : SND_SEQ_EVENT_NOTEOFF;

  938.                     fMidiEvents[midiEventCount].data.note.channel  = note.channel;

  939.                     fMidiEvents[midiEventCount].data.note.note     = note.note;

  940.                     fMidiEvents[midiEventCount].data.note.velocity = note.velo;

  941. 

  942.                     midiEventCount += 1;

  943.                 }

  944. 

  945.                 kData->extNotes.mutex.unlock();

  946. 

  947.             } // End of MIDI Input (External)

  948. 

  949.             // ----------------------------------------------------------------------------------------------------

  950.             // Event Input (System)

  951. 

  952.             bool allNotesOffSent = false;

  953. 

  954.             uint32_t time, nEvents = kData->event.portIn->getEventCount();

  955.             uint32_t timeOffset = 0;

  956. 

  957.             uint32_t nextBankId = 0;

  958.             if (kData->midiprog.current >= 0 && kData->midiprog.count > 0)

  959.                 nextBankId = kData->midiprog.data[kData->midiprog.current].bank;

  960. 

  961.             for (i=0; i < nEvents; i++)

  962.             {

  963.                 const EngineEvent& event = kData->event.portIn->getEvent(i);

  964. 

  965.                 time = event.time - framesOffset;

  966. 

  967.                 if (time >= frames)

  968.                     continue;

  969. 

  970.                 CARLA_ASSERT(time >= timeOffset);

  971. 

  972.                 if (time > timeOffset)

  973.                 {

  974.                     processSingle(inBuffer, outBuffer, frames - timeOffset, timeOffset, midiEventCount);

  975.                     midiEventCount = 0;

  976.                     timeOffset = time;

  977.                 }

  978. 

  979.                 // Control change

  980.                 switch (event.type)

  981.                 {

  982.                 case kEngineEventTypeNull:

  983.                     break;

  984. 

  985.                 case kEngineEventTypeControl:

  986.                 {

  987.                     const EngineControlEvent& ctrlEvent = event.ctrl;

  988. 

  989.                     switch (ctrlEvent.type)

  990.                     {

  991.                     case kEngineControlEventTypeNull:

  992.                         break;

  993. 

  994.                     case kEngineControlEventTypeParameter:

  995.                     {

  996.                         // Control backend stuff

  997.                         if (event.channel == kData->ctrlInChannel)

  998.                         {

  999.                             double value;

  1000. 

  1001.                             if (MIDI_IS_CONTROL_BREATH_CONTROLLER(ctrlEvent.param) && (fHints & PLUGIN_CAN_DRYWET) > 0)

  1002.                             {

  1003.                                 value = ctrlEvent.value;

  1004.                                 setDryWet(value, false, false);

  1005.                                 postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_DRYWET, 0, value);

  1006.                                 continue;

  1007.                             }

  1008. 

  1009.                             if (MIDI_IS_CONTROL_CHANNEL_VOLUME(ctrlEvent.param) && (fHints & PLUGIN_CAN_VOLUME) > 0)

  1010.                             {

  1011.                                 value = ctrlEvent.value*127/100;

  1012.                                 setVolume(value, false, false);

  1013.                                 postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_VOLUME, 0, value);

  1014.                                 continue;

  1015.                             }

  1016. 

  1017.                             if (MIDI_IS_CONTROL_BALANCE(ctrlEvent.param) && (fHints & PLUGIN_CAN_BALANCE) > 0)

  1018.                             {

  1019.                                 double left, right;

  1020.                                 value = ctrlEvent.value/0.5 - 1.0;

  1021. 

  1022.                                 if (value < 0.0)

  1023.                                 {

  1024.                                     left  = -1.0;

  1025.                                     right = (value*2)+1.0;

  1026.                                 }

  1027.                                 else if (value > 0.0)

  1028.                                 {

  1029.                                     left  = (value*2)-1.0;

  1030.                                     right = 1.0;

  1031.                                 }

  1032.                                 else

  1033.                                 {

  1034.                                     left  = -1.0;

  1035.                                     right = 1.0;

  1036.                                 }

  1037. 

  1038.                                 setBalanceLeft(left, false, false);

  1039.                                 setBalanceRight(right, false, false);

  1040.                                 postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_BALANCE_LEFT, 0, left);

  1041.                                 postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_BALANCE_RIGHT, 0, right);

  1042.                                 continue;

  1043.                             }

  1044.                         }

  1045. 

  1046.                         // Control plugin parameters

  1047.                         for (k=0; k < kData->param.count; k++)

  1048.                         {

  1049.                             if (kData->param.data[k].midiChannel != event.channel)

  1050.                                 continue;

  1051.                             if (kData->param.data[k].midiCC != ctrlEvent.param)

  1052.                                 continue;

  1053.                             if (kData->param.data[k].type != PARAMETER_INPUT)

  1054.                                 continue;

  1055.                             if ((kData->param.data[k].hints & PARAMETER_IS_AUTOMABLE) == 0)

  1056.                                 continue;

  1057. 

  1058.                             double value;

  1059. 

  1060.                             if (kData->param.data[k].hints & PARAMETER_IS_BOOLEAN)

  1061.                             {

  1062.                                 value = (ctrlEvent.value < 0.5) ? kData->param.ranges[k].min : kData->param.ranges[k].max;

  1063.                             }

  1064.                             else

  1065.                             {

  1066.                                 // FIXME - ranges call for this

  1067.                                 value = ctrlEvent.value * (kData->param.ranges[k].max - kData->param.ranges[k].min) + kData->param.ranges[k].min;

  1068. 

  1069.                                 if (kData->param.data[k].hints & PARAMETER_IS_INTEGER)

  1070.                                     value = std::rint(value);

  1071.                             }

  1072. 

  1073.                             setParameterValue(k, value, false, false, false);

  1074.                             postponeRtEvent(kPluginPostRtEventParameterChange, k, 0, value);

  1075.                         }

  1076. 

  1077.                         break;

  1078.                     }

  1079. 

  1080.                     case kEngineControlEventTypeMidiBank:

  1081.                         if (event.channel == kData->ctrlInChannel)

  1082.                             nextBankId = ctrlEvent.param;

  1083.                         break;

  1084. 

  1085.                     case kEngineControlEventTypeMidiProgram:

  1086.                         if (event.channel == kData->ctrlInChannel)

  1087.                         {

  1088.                             const uint32_t nextProgramId = ctrlEvent.param;

  1089. 

  1090.                             for (k=0; k < kData->midiprog.count; k++)

  1091.                             {

  1092.                                 if (kData->midiprog.data[k].bank == nextBankId && kData->midiprog.data[k].program == nextProgramId)

  1093.                                 {

  1094.                                     setMidiProgram(k, false, false, false, false);

  1095.                                     postponeRtEvent(kPluginPostRtEventMidiProgramChange, k, 0, 0.0);

  1096.                                     break;

  1097.                                 }

  1098.                             }

  1099.                         }

  1100.                         break;

  1101. 

  1102.                     case kEngineControlEventTypeAllSoundOff:

  1103.                         if (event.channel == kData->ctrlInChannel)

  1104.                         {

  1105.                             if (! allNotesOffSent)

  1106.                                 sendMidiAllNotesOff();

  1107. 

  1108.                             if (fDescriptor->deactivate != nullptr)

  1109.                             {

  1110.                                 fDescriptor->deactivate(fHandle);

  1111. 

  1112.                                 if (fHandle2 != nullptr)

  1113.                                     fDescriptor->deactivate(fHandle2);

  1114.                             }

  1115. 

  1116.                             if (fDescriptor->activate != nullptr)

  1117.                             {

  1118.                                 fDescriptor->activate(fHandle);

  1119. 

  1120.                                 if (fHandle2 != nullptr)

  1121.                                     fDescriptor->activate(fHandle2);

  1122.                             }

  1123. 

  1124.                             postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_ACTIVE, 0, 0.0);

  1125.                             postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_ACTIVE, 0, 1.0);

  1126. 

  1127.                             allNotesOffSent = true;

  1128.                         }

  1129.                         break;

  1130. 

  1131.                     case kEngineControlEventTypeAllNotesOff:

  1132.                         if (event.channel == kData->ctrlInChannel)

  1133.                         {

  1134.                             if (! allNotesOffSent)

  1135.                                 sendMidiAllNotesOff();

  1136. 

  1137.                             allNotesOffSent = true;

  1138.                         }

  1139.                         break;

  1140.                     }

  1141. 

  1142.                     break;

  1143.                 }

  1144. 

  1145.                 case kEngineEventTypeMidi:

  1146.                 {

  1147.                     if (midiEventCount >= MAX_MIDI_EVENTS)

  1148.                         continue;

  1149. 

  1150.                     const EngineMidiEvent& midiEvent = event.midi;

  1151. 

  1152.                     uint8_t status  = MIDI_GET_STATUS_FROM_DATA(midiEvent.data);

  1153.                     uint8_t channel = MIDI_GET_CHANNEL_FROM_DATA(midiEvent.data);

  1154. 

  1155.                     // Fix bad note-off (per DSSI spec)

  1156.                     if (MIDI_IS_STATUS_NOTE_ON(status) && midiEvent.data[2] == 0)

  1157.                         status -= 0x10;

  1158. 

  1159.                     carla_zeroStruct<snd_seq_event_t>(fMidiEvents[midiEventCount]);

  1160. 

  1161.                     fMidiEvents[midiEventCount].time.tick = time;

  1162. 

  1163.                     if (MIDI_IS_STATUS_NOTE_OFF(status))

  1164.                     {

  1165.                         const uint8_t note = midiEvent.data[1];

  1166. 

  1167.                         fMidiEvents[midiEventCount].type = SND_SEQ_EVENT_NOTEOFF;

  1168.                         fMidiEvents[midiEventCount].data.note.channel = channel;

  1169.                         fMidiEvents[midiEventCount].data.note.note    = note;

  1170. 

  1171.                         postponeRtEvent(kPluginPostRtEventNoteOff, channel, note, 0.0);

  1172.                     }

  1173.                     else if (MIDI_IS_STATUS_NOTE_ON(status))

  1174.                     {

  1175.                         const uint8_t note = midiEvent.data[1];

  1176.                         const uint8_t velo = midiEvent.data[2];

  1177. 

  1178.                         fMidiEvents[midiEventCount].type = SND_SEQ_EVENT_NOTEON;

  1179.                         fMidiEvents[midiEventCount].data.note.channel  = channel;

  1180.                         fMidiEvents[midiEventCount].data.note.note     = note;

  1181.                         fMidiEvents[midiEventCount].data.note.velocity = velo;

  1182. 

  1183.                         postponeRtEvent(kPluginPostRtEventNoteOn, channel, note, velo);

  1184.                     }

  1185.                     else if (MIDI_IS_STATUS_POLYPHONIC_AFTERTOUCH(status))

  1186.                     {

  1187.                         const uint8_t note     = midiEvent.data[1];

  1188.                         const uint8_t pressure = midiEvent.data[2];

  1189. 

  1190.                         fMidiEvents[midiEventCount].type = SND_SEQ_EVENT_KEYPRESS;

  1191.                         fMidiEvents[midiEventCount].data.note.channel  = channel;

  1192.                         fMidiEvents[midiEventCount].data.note.note     = note;

  1193.                         fMidiEvents[midiEventCount].data.note.velocity = pressure;

  1194.                     }

  1195.                     else if (MIDI_IS_STATUS_AFTERTOUCH(status))

  1196.                     {

  1197.                         const uint8_t pressure = midiEvent.data[1];

  1198. 

  1199.                         fMidiEvents[midiEventCount].type = SND_SEQ_EVENT_CHANPRESS;

  1200.                         fMidiEvents[midiEventCount].data.control.channel = channel;

  1201.                         fMidiEvents[midiEventCount].data.control.value   = pressure;

  1202.                     }

  1203.                     else if (MIDI_IS_STATUS_PITCH_WHEEL_CONTROL(status))

  1204.                     {

  1205.                         const uint8_t lsb = midiEvent.data[1];

  1206.                         const uint8_t msb = midiEvent.data[2];

  1207. 

  1208.                         fMidiEvents[midiEventCount].type = SND_SEQ_EVENT_PITCHBEND;

  1209.                         fMidiEvents[midiEventCount].data.control.channel = channel;

  1210.                         fMidiEvents[midiEventCount].data.control.value   = ((msb << 7) | lsb) - 8192;

  1211.                     }

  1212.                     else

  1213.                         continue;

  1214. 

  1215.                     midiEventCount += 1;

  1216. 

  1217.                     break;

  1218.                 }

  1219.                 }

  1220.             }

  1221. 

  1222.             kData->postRtEvents.trySplice();

  1223. 

  1224.             if (frames > timeOffset)

  1225.                 processSingle(inBuffer, outBuffer, frames - timeOffset, timeOffset, midiEventCount);

  1226. 

  1227.         } // End of Event Input and Processing

  1228. 

  1229.         // --------------------------------------------------------------------------------------------------------

  1230.         // Plugin processing (no events)

  1231. 

  1232.         else

  1233.         {

  1234.             processSingle(inBuffer, outBuffer, frames, 0, 0);

  1235. 

  1236.         } // End of Plugin processing (no events)

  1237. 

  1238.         // --------------------------------------------------------------------------------------------------------

  1239.         // Special Parameters

  1240. 

  1241. #if 0

  1242.         CARLA_PROCESS_CONTINUE_CHECK;

  1243. 

  1244.         for (k=0; k < param.count; k++)

  1245.         {

  1246.             if (param.data[k].type == PARAMETER_LATENCY)

  1247.             {

  1248.                 // TODO

  1249.             }

  1250.         }

  1251. 

  1252.         CARLA_PROCESS_CONTINUE_CHECK;

  1253. #endif

  1254. 

  1255.         CARLA_PROCESS_CONTINUE_CHECK;

  1256. 

  1257.         // --------------------------------------------------------------------------------------------------------

  1258.         // Post-processing (dry/wet, volume and balance)

  1259. 

  1260.         {

  1261.             const bool doDryWet  = (fHints & PLUGIN_CAN_DRYWET) > 0 && kData->postProc.dryWet != 1.0f;

  1262.             const bool doVolume  = (fHints & PLUGIN_CAN_VOLUME) > 0 && kData->postProc.volume != 1.0f;

  1263.             const bool doBalance = (fHints & PLUGIN_CAN_BALANCE) > 0 && (kData->postProc.balanceLeft != -1.0f || kData->postProc.balanceRight != 1.0f);

  1264. 

  1265.             float bufValue, oldBufLeft[doBalance ? frames : 1];

  1266. 

  1267.             for (i=0; i < kData->audioOut.count; i++)

  1268.             {

  1269.                 // Dry/Wet

  1270.                 if (doDryWet)

  1271.                 {

  1272. #if 0

  1273.                     for (k=0; k < frames; k++)

  1274.                     {

  1275.                         if (k < m_latency && m_latency < frames)

  1276.                             bufValue = (aIn.count == 1) ? m_latencyBuffers[0][k] : m_latencyBuffers[i][k];

  1277.                         else

  1278.                             bufValue = (aIn.count == 1) ? inBuffer[0][k-m_latency] : inBuffer[i][k-m_latency];

  1279. 

  1280.                         outBuffer[i][k] = (outBuffer[i][k]*x_dryWet)+(bufValue*(1.0-x_dryWet));

  1281.                     }

  1282. #endif

  1283.                     for (k=0; k < frames; k++)

  1284.                     {

  1285.                         // TODO

  1286.                         //if (k < kData->latency && kData->latency < frames)

  1287.                         //    bufValue = (kData->audioIn.count == 1) ? kData->latencyBuffers[0][k] : kData->latencyBuffers[i][k];

  1288.                         //else

  1289.                         //    bufValue = (kData->audioIn.count == 1) ? inBuffer[0][k-m_latency] : inBuffer[i][k-m_latency];

  1290. 

  1291.                         bufValue = inBuffer[ (kData->audioIn.count == 1) ? 0 : i ][k];

  1292. 

  1293.                         outBuffer[i][k] = (outBuffer[i][k] * kData->postProc.dryWet) + (bufValue * (1.0f - kData->postProc.dryWet));

  1294.                     }

  1295.                 }

  1296. 

  1297.                 // Balance

  1298.                 if (doBalance)

  1299.                 {

  1300.                     if (i % 2 == 0)

  1301.                         std::memcpy(oldBufLeft, outBuffer[i], sizeof(float)*frames);

  1302. 

  1303.                     float balRangeL = (kData->postProc.balanceLeft  + 1.0f)/2.0f;

  1304.                     float balRangeR = (kData->postProc.balanceRight + 1.0f)/2.0f;

  1305. 

  1306.                     for (k=0; k < frames; k++)

  1307.                     {

  1308.                         if (i % 2 == 0)

  1309.                         {

  1310.                             // left

  1311.                             outBuffer[i][k]  = oldBufLeft[k]     * (1.0f - balRangeL);

  1312.                             outBuffer[i][k] += outBuffer[i+1][k] * (1.0f - balRangeR);

  1313.                         }

  1314.                         else

  1315.                         {

  1316.                             // right

  1317.                             outBuffer[i][k]  = outBuffer[i][k] * balRangeR;

  1318.                             outBuffer[i][k] += oldBufLeft[k]   * balRangeL;

  1319.                         }

  1320.                     }

  1321.                 }

  1322. 

  1323.                 // Volume

  1324.                 if (doVolume)

  1325.                 {

  1326.                     for (k=0; k < frames; k++)

  1327.                         outBuffer[i][k] *= kData->postProc.volume;

  1328.                 }

  1329.             }

  1330. 

  1331. #if 0

  1332.             // Latency, save values for next callback, TODO

  1333.             if (kData->latency > 0 && kData->latency < frames)

  1334.             {

  1335.                 for (i=0; i < kData->audioIn.count; i++)

  1336.                     std::memcpy(kData->latencyBuffers[i], inBuffer[i] + (frames - kData->latency), sizeof(float)*kData->latency);

  1337.             }

  1338. #endif

  1339.         } // End of Post-processing

  1340. 

  1341.         CARLA_PROCESS_CONTINUE_CHECK;

  1342. 

  1343.         // --------------------------------------------------------------------------------------------------------

  1344.         // Control Output

  1345. 

  1346.         if (kData->event.portOut != nullptr)

  1347.         {

  1348.             float value;

  1349. 

  1350.             for (k=0; k < kData->param.count; k++)

  1351.             {

  1352.                 if (kData->param.data[k].type != PARAMETER_OUTPUT)

  1353.                     continue;

  1354. 

  1355.                 kData->param.ranges[k].fixValue(fParamBuffers[k]);

  1356. 

  1357.                 if (kData->param.data[k].midiCC > 0)

  1358.                 {

  1359.                     value = kData->param.ranges[k].normalizeValue(fParamBuffers[k]);

  1360.                     kData->event.portOut->writeControlEvent(framesOffset, kData->param.data[k].midiChannel, kEngineControlEventTypeParameter, kData->param.data[k].midiCC, value);

  1361.                 }

  1362.             }

  1363. 

  1364.         } // End of Control Output

  1365. 

  1366.         CARLA_PROCESS_CONTINUE_CHECK;

  1367. 

  1368.         // --------------------------------------------------------------------------------------------------------

  1369. 

  1370.         kData->activeBefore = kData->active;

  1371.     }

  1372. 

  1373.     void processSingle(float** const inBuffer, float** const outBuffer, const uint32_t frames, const uint32_t timeOffset, const uint32_t midiEventCount)

  1374.     {

  1375.         if (fHandle2 == nullptr)

  1376.         {

  1377.             for (uint32_t i=0; i < kData->audioIn.count; i++)

  1378.                 fDescriptor->connect_port(fHandle, kData->audioIn.ports[i].rindex, inBuffer[i]+timeOffset);

  1379. 

  1380.             for (uint32_t i=0; i < kData->audioOut.count; i++)

  1381.                 fDescriptor->connect_port(fHandle, kData->audioOut.ports[i].rindex, outBuffer[i]+timeOffset);

  1382.         }

  1383.         else

  1384.         {

  1385.             if (kData->audioIn.count > 0)

  1386.             {

  1387.                 CARLA_ASSERT(kData->audioIn.count == 2);

  1388. 

  1389.                 fDescriptor->connect_port(fHandle,  kData->audioIn.ports[0].rindex, inBuffer[0]+timeOffset);

  1390.                 fDescriptor->connect_port(fHandle2, kData->audioIn.ports[1].rindex, inBuffer[1]+timeOffset);

  1391.             }

  1392. 

  1393.             if (kData->audioOut.count > 0)

  1394.             {

  1395.                 CARLA_ASSERT(kData->audioOut.count == 2);

  1396. 

  1397.                 fDescriptor->connect_port(fHandle,  kData->audioOut.ports[0].rindex, outBuffer[0]+timeOffset);

  1398.                 fDescriptor->connect_port(fHandle2, kData->audioOut.ports[1].rindex, outBuffer[1]+timeOffset);

  1399.             }

  1400.         }

  1401. 

  1402.         if (fDssiDescriptor->run_synth != nullptr)

  1403.         {

  1404.             fDssiDescriptor->run_synth(fHandle, frames, fMidiEvents, midiEventCount);

  1405. 

  1406.             if (fHandle2)

  1407.                 fDssiDescriptor->run_synth(fHandle2, frames, fMidiEvents, midiEventCount);

  1408.         }

  1409.         else if (fDssiDescriptor->run_multiple_synths != nullptr)

  1410.         {

  1411.             LADSPA_Handle handlePtr[2] = { fHandle, fHandle2 };

  1412.             snd_seq_event_t* midiEventsPtr[2] = { fMidiEvents, fMidiEvents };

  1413.             unsigned long midiEventCountPtr[2] = { midiEventCount, midiEventCount };

  1414.             fDssiDescriptor->run_multiple_synths((fHandle2 != nullptr) ? 2 : 1, handlePtr, frames, midiEventsPtr, midiEventCountPtr);

  1415.         }

  1416.         else

  1417.         {

  1418.             fDescriptor->run(fHandle, frames);

  1419. 

  1420.             if (fHandle2)

  1421.                 fDescriptor->run(fHandle2, frames);

  1422.         }

  1423.     }

  1424. 

  1425.     // -------------------------------------------------------------------

  1426.     // Post-poned events

  1427. 

  1428.     void uiParameterChange(const uint32_t index, const float value)

  1429.     {

  1430.         CARLA_ASSERT(index < kData->param.count);

  1431. 

  1432.         if (index >= kData->param.count)

  1433.             return;

  1434.         if (kData->osc.data.target == nullptr)

  1435.             return;

  1436. 

  1437.         osc_send_control(&kData->osc.data, kData->param.data[index].rindex, value);

  1438.     }

  1439. 

  1440.     void uiMidiProgramChange(const uint32_t index)

  1441.     {

  1442.         CARLA_ASSERT(index < kData->midiprog.count);

  1443. 

  1444.         if (index >= kData->midiprog.count)

  1445.             return;

  1446.         if (kData->osc.data.target == nullptr)

  1447.             return;

  1448. 

  1449.         osc_send_program(&kData->osc.data, kData->midiprog.data[index].bank, kData->midiprog.data[index].program);

  1450.     }

  1451. 

  1452.     void uiNoteOn(const uint8_t channel, const uint8_t note, const uint8_t velo)

  1453.     {

  1454.         CARLA_ASSERT(channel < MAX_MIDI_CHANNELS);

  1455.         CARLA_ASSERT(note < MAX_MIDI_NOTE);

  1456.         CARLA_ASSERT(velo > 0 && velo < MAX_MIDI_VALUE);

  1457. 

  1458.         if (channel >= MAX_MIDI_CHANNELS)

  1459.             return;

  1460.         if (note >= MAX_MIDI_NOTE)

  1461.             return;

  1462.         if (velo >= MAX_MIDI_VALUE)

  1463.             return;

  1464.         if (kData->osc.data.target == nullptr)

  1465.             return;

  1466. 

  1467.         uint8_t midiData[4] = { 0 };

  1468.         midiData[1] = MIDI_STATUS_NOTE_ON + channel;

  1469.         midiData[2] = note;

  1470.         midiData[3] = velo;

  1471. 

  1472.         osc_send_midi(&kData->osc.data, midiData);

  1473.     }

  1474. 

  1475.     void uiNoteOff(const uint8_t channel, const uint8_t note)

  1476.     {

  1477.         CARLA_ASSERT(channel < MAX_MIDI_CHANNELS);

  1478.         CARLA_ASSERT(note < MAX_MIDI_NOTE);

  1479. 

  1480.         if (channel >= MAX_MIDI_CHANNELS)

  1481.             return;

  1482.         if (note >= MAX_MIDI_NOTE)

  1483.             return;

  1484.         if (kData->osc.data.target == nullptr)

  1485.             return;

  1486. 

  1487.         uint8_t midiData[4] = { 0 };

  1488.         midiData[1] = MIDI_STATUS_NOTE_OFF + channel;

  1489.         midiData[2] = note;

  1490. 

  1491.         osc_send_midi(&kData->osc.data, midiData);

  1492.     }

  1493. 

  1494.     // -------------------------------------------------------------------

  1495.     // Cleanup

  1496. 

  1497.     void deleteBuffers()

  1498.     {

  1499.         qDebug("DssiPlugin::deleteBuffers() - start");

  1500. 

  1501.         if (fParamBuffers != nullptr)

  1502.         {

  1503.             delete[] fParamBuffers;

  1504.             fParamBuffers = nullptr;

  1505.         }

  1506. 

  1507.         CarlaPlugin::deleteBuffers();

  1508. 

  1509.         qDebug("DssiPlugin::deleteBuffers() - end");

  1510.     }

  1511. 

  1512.     // -------------------------------------------------------------------

  1513. 

  1514.     bool init(const char* const filename, const char* const name, const char* const label, const char* const guiFilename)

  1515.     {

  1516.         CARLA_ASSERT(kData->engine != nullptr);

  1517.         CARLA_ASSERT(kData->client == nullptr);

  1518.         CARLA_ASSERT(filename != nullptr);

  1519.         CARLA_ASSERT(label != nullptr);

  1520. 

  1521.         // ---------------------------------------------------------------

  1522.         // open DLL

  1523. 

  1524.         if (! libOpen(filename))

  1525.         {

  1526.             kData->engine->setLastError(libError(filename));

  1527.             return false;

  1528.         }

  1529. 

  1530.         // ---------------------------------------------------------------

  1531.         // get DLL main entry

  1532. 

  1533.         const DSSI_Descriptor_Function descFn = (DSSI_Descriptor_Function)libSymbol("dssi_descriptor");

  1534. 

  1535.         if (descFn == nullptr)

  1536.         {

  1537.             kData->engine->setLastError("Could not find the DSSI Descriptor in the plugin library");

  1538.             return false;

  1539.         }

  1540. 

  1541.         // ---------------------------------------------------------------

  1542.         // get descriptor that matches label

  1543. 

  1544.         unsigned long i = 0;

  1545.         while ((fDssiDescriptor = descFn(i++)) != nullptr)

  1546.         {

  1547.             fDescriptor = fDssiDescriptor->LADSPA_Plugin;

  1548.             if (fDescriptor != nullptr && fDescriptor->Label != nullptr && std::strcmp(fDescriptor->Label, label) == 0)

  1549.                 break;

  1550.         }

  1551. 

  1552.         if (fDescriptor == nullptr || fDssiDescriptor == nullptr)

  1553.         {

  1554.             kData->engine->setLastError("Could not find the requested plugin label in the plugin library");

  1555.             return false;

  1556.         }

  1557. 

  1558.         // ---------------------------------------------------------------

  1559.         // get info

  1560. 

  1561.         if (name != nullptr)

  1562.             fName = kData->engine->getNewUniquePluginName(name);

  1563.         else if (fDescriptor->Name != nullptr)

  1564.             fName = kData->engine->getNewUniquePluginName(fDescriptor->Name);

  1565.         else

  1566.             fName = kData->engine->getNewUniquePluginName(fDescriptor->Label);

  1567. 

  1568.         fFilename = filename;

  1569. 

  1570.         // ---------------------------------------------------------------

  1571.         // register client

  1572. 

  1573.         kData->client = kData->engine->addClient(this);

  1574. 

  1575.         if (kData->client == nullptr || ! kData->client->isOk())

  1576.         {

  1577.             kData->engine->setLastError("Failed to register plugin client");

  1578.             return false;

  1579.         }

  1580. 

  1581.         // ---------------------------------------------------------------

  1582.         // initialize plugin

  1583. 

  1584.         fHandle = fDescriptor->instantiate(fDescriptor, kData->engine->getSampleRate());

  1585. 

  1586.         if (fHandle == nullptr)

  1587.         {

  1588.             kData->engine->setLastError("Plugin failed to initialize");

  1589.             return false;

  1590.         }

  1591. 

  1592.         // ---------------------------------------------------------------

  1593.         // gui stuff

  1594. 

  1595.         if (guiFilename)

  1596.         {

  1597.             kData->osc.thread = new CarlaPluginThread(kData->engine, this, CarlaPluginThread::PLUGIN_THREAD_DSSI_GUI);

  1598.             kData->osc.thread->setOscData(guiFilename, fDescriptor->Label);

  1599. 

  1600.             fHints |= PLUGIN_HAS_GUI;

  1601.         }

  1602. 

  1603.         return true;

  1604.     }

  1605. 

  1606. private:

  1607.     LADSPA_Handle fHandle;

  1608.     LADSPA_Handle fHandle2;

  1609.     const LADSPA_Descriptor* fDescriptor;

  1610.     const DSSI_Descriptor*   fDssiDescriptor;

  1611. 

  1612.     snd_seq_event_t fMidiEvents[MAX_MIDI_EVENTS];

  1613.     float*          fParamBuffers;

  1614.     QByteArray      fChunk;

  1615. };

  1616. 

  1617. CARLA_BACKEND_END_NAMESPACE

  1618. 

  1619. #else // WANT_DSSI

  1620. # warning Building without DSSI support

  1621. #endif

  1622. 

  1623. CARLA_BACKEND_START_NAMESPACE

  1624. 

  1625. CarlaPlugin* CarlaPlugin::newDSSI(const Initializer& init, const char* const guiFilename)

  1626. {

  1627.     qDebug("CarlaPlugin::newDSSI({%p, \"%s\", \"%s\", \"%s\"}, \"%s\")", init.engine, init.filename, init.name, init.label, guiFilename);

  1628. 

  1629. #ifdef WANT_DSSI

  1630.     DssiPlugin* const plugin = new DssiPlugin(init.engine, init.id);

  1631. 

  1632.     if (! plugin->init(init.filename, init.name, init.label, guiFilename))

  1633.     {

  1634.         delete plugin;

  1635.         return nullptr;

  1636.     }

  1637. 

  1638.     plugin->reload();

  1639. 

  1640.     if (init.engine->getProccessMode() == PROCESS_MODE_CONTINUOUS_RACK && (plugin->hints() & PLUGIN_CAN_FORCE_STEREO) == 0)

  1641.     {

  1642.         init.engine->setLastError("Carla's rack mode can only work with Mono or Stereo DSSI plugins, sorry!");

  1643.         delete plugin;

  1644.         return nullptr;

  1645.     }

  1646. 

  1647.     plugin->registerToOscClient();

  1648. 

  1649.     return plugin;

  1650. #else

  1651.     init.engine->setLastError("DSSI support not available");

  1652.     return nullptr;

  1653. #endif

  1654. }

  1655. 

  1656. CARLA_BACKEND_END_NAMESPACE