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Carla
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Carla/source/backend/plugin/DssiPlugin.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 "CarlaPluginInternal.hpp"

  19. 

  20. #ifdef WANT_DSSI

  21. 

  22. #include "CarlaLadspaUtils.hpp"

  23. #include "dssi/dssi.h"

  24. 

  25. CARLA_BACKEND_START_NAMESPACE

  26. 

  27. #if 0

  28. }

  29. #endif

  30. 

  31. class DssiPlugin : public CarlaPlugin

  32. {

  33. public:

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

  35.         : CarlaPlugin(engine, id),

  36.           fHandle(nullptr),

  37.           fHandle2(nullptr),

  38.           fDescriptor(nullptr),

  39.           fDssiDescriptor(nullptr),

  40.           fAudioInBuffers(nullptr),

  41.           fAudioOutBuffers(nullptr),

  42.           fParamBuffers(nullptr)

  43.     {

  44.         carla_debug("DssiPlugin::DssiPlugin(%p, %i)", engine, id);

  45. 

  46.         carla_zeroStruct<snd_seq_event_t>(fMidiEvents, MAX_MIDI_EVENTS);

  47. 

  48.         kData->osc.thread.setMode(CarlaPluginThread::PLUGIN_THREAD_DSSI_GUI);

  49.     }

  50. 

  51.     ~DssiPlugin()

  52.     {

  53.         carla_debug("DssiPlugin::~DssiPlugin()");

  54. 

  55.         // close UI

  56.         if (fHints & PLUGIN_HAS_GUI)

  57.         {

  58.             showGui(false);

  59. 

  60.             // Wait a bit first, then force kill

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

  62.             {

  63.                 carla_stderr("DSSI GUI thread still running, forcing termination now");

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

  65.             }

  66.         }

  67. 

  68.         kData->singleMutex.lock();

  69.         kData->masterMutex.lock();

  70. 

  71.         if (kData->active)

  72.         {

  73.             deactivate();

  74.             kData->active = false;

  75.         }

  76. 

  77.         if (fDescriptor != nullptr)

  78.         {

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

  80.             {

  81.                 if (fHandle != nullptr)

  82.                     fDescriptor->cleanup(fHandle);

  83.                 if (fHandle2 != nullptr)

  84.                     fDescriptor->cleanup(fHandle2);

  85.             }

  86. 

  87.             fHandle  = nullptr;

  88.             fHandle2 = nullptr;

  89.             fDescriptor = nullptr;

  90.             fDssiDescriptor = nullptr;

  91.         }

  92. 

  93.         clearBuffers();

  94.     }

  95. 

  96.     // -------------------------------------------------------------------

  97.     // Information (base)

  98. 

  99.     PluginType type() const

  100.     {

  101.         return PLUGIN_DSSI;

  102.     }

  103. 

  104.     PluginCategory category()

  105.     {

  106.         if (fHints & PLUGIN_IS_SYNTH)

  107.             return PLUGIN_CATEGORY_SYNTH;

  108. 

  109.         return getPluginCategoryFromName(fName);

  110.     }

  111. 

  112.     long uniqueId() const

  113.     {

  114.         CARLA_ASSERT(fDescriptor != nullptr);

  115. 

  116.         return (fDescriptor != nullptr) ? static_cast<long>(fDescriptor->UniqueID) : 0;

  117.     }

  118. 

  119.     // -------------------------------------------------------------------

  120.     // Information (current data)

  121. 

  122.     int32_t chunkData(void** const dataPtr)

  123.     {

  124.         CARLA_ASSERT(fOptions & PLUGIN_OPTION_USE_CHUNKS);

  125.         CARLA_ASSERT(fDssiDescriptor != nullptr);

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

  127.         CARLA_ASSERT(fHandle != nullptr);

  128.         CARLA_ASSERT(fHandle2 == nullptr);

  129.         CARLA_ASSERT(dataPtr != nullptr);

  130. 

  131.         unsigned long dataSize = 0;

  132. 

  133.         if (fDssiDescriptor->get_custom_data != nullptr && fDssiDescriptor->get_custom_data(fHandle, dataPtr, &dataSize) != 0)

  134.             return static_cast<int32_t>(dataSize);

  135. 

  136.         return 0;

  137.     }

  138. 

  139.     // -------------------------------------------------------------------

  140.     // Information (per-plugin data)

  141. 

  142.     unsigned int availableOptions()

  143.     {

  144.         CARLA_ASSERT(fDescriptor != nullptr);

  145. 

  146. #ifdef __USE_GNU

  147.         const bool isDssiVst = fFilename.contains("dssi-vst", true);

  148.         const bool isZASX    = fFilename.contains("zynaddsubfx", true);

  149. #else

  150.         const bool isDssiVst = fFilename.contains("dssi-vst");

  151.         const bool isZASX    = fFilename.contains("zynaddsubfx");

  152. #endif

  153. 

  154.         unsigned int options = 0x0;

  155. 

  156.         options |= PLUGIN_OPTION_MAP_PROGRAM_CHANGES;

  157. 

  158.         if (isDssiVst)

  159.         {

  160.             if (fDescriptor != nullptr && fDssiDescriptor->get_custom_data != nullptr && fDssiDescriptor->set_custom_data != nullptr)

  161.                 options |= PLUGIN_OPTION_USE_CHUNKS;

  162.         }

  163.         else

  164.         {

  165.             if (kData->engine->getProccessMode() != PROCESS_MODE_CONTINUOUS_RACK)

  166.             {

  167.                 if (kData->audioIn.count <= 1 && kData->audioOut.count <= 1 && (kData->audioIn.count != 0 || kData->audioOut.count != 0))

  168.                     options |= PLUGIN_OPTION_FORCE_STEREO;

  169.             }

  170. 

  171.             if (! isZASX)

  172.                 options |= PLUGIN_OPTION_FIXED_BUFFER;

  173.         }

  174. 

  175.         if (kData->extraHints & PLUGIN_HINT_HAS_MIDI_IN)

  176.         {

  177.             options |= PLUGIN_OPTION_SEND_CONTROL_CHANGES;

  178.             options |= PLUGIN_OPTION_SEND_CHANNEL_PRESSURE;

  179.             options |= PLUGIN_OPTION_SEND_NOTE_AFTERTOUCH;

  180.             options |= PLUGIN_OPTION_SEND_PITCHBEND;

  181.             options |= PLUGIN_OPTION_SEND_ALL_SOUND_OFF;

  182.         }

  183. 

  184.         return options;

  185.     }

  186. 

  187.     float getParameterValue(const uint32_t parameterId)

  188.     {

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

  190. 

  191.         return fParamBuffers[parameterId];

  192.     }

  193. 

  194.     void getLabel(char* const strBuf)

  195.     {

  196.         CARLA_ASSERT(fDescriptor != nullptr);

  197. 

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

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

  200.         else

  201.             CarlaPlugin::getLabel(strBuf);

  202.     }

  203. 

  204.     void getMaker(char* const strBuf)

  205.     {

  206.         CARLA_ASSERT(fDescriptor != nullptr);

  207. 

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

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

  210.         else

  211.             CarlaPlugin::getMaker(strBuf);

  212.     }

  213. 

  214.     void getCopyright(char* const strBuf)

  215.     {

  216.         CARLA_ASSERT(fDescriptor != nullptr);

  217. 

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

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

  220.         else

  221.             CarlaPlugin::getCopyright(strBuf);

  222.     }

  223. 

  224.     void getRealName(char* const strBuf)

  225.     {

  226.         CARLA_ASSERT(fDescriptor != nullptr);

  227. 

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

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

  230.         else

  231.             CarlaPlugin::getRealName(strBuf);

  232.     }

  233. 

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

  235.     {

  236.         CARLA_ASSERT(fDescriptor != nullptr);

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

  238. 

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

  240. 

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

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

  243.         else

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

  245.     }

  246. 

  247.     // -------------------------------------------------------------------

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

  249. 

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

  251.     {

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

  253. 

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

  255.         fParamBuffers[parameterId] = fixedValue;

  256. 

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

  258.     }

  259. 

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

  261.     {

  262.         carla_debug("DssiPlugin::setCustomData(%s, %s, %s, %s)", type, key, value, bool2str(sendGui));

  263.         CARLA_ASSERT(fDescriptor != nullptr);

  264.         CARLA_ASSERT(fHandle != nullptr);

  265.         CARLA_ASSERT(type != nullptr);

  266.         CARLA_ASSERT(key != nullptr);

  267.         CARLA_ASSERT(value != nullptr);

  268. 

  269.         if (type == nullptr)

  270.             return carla_stderr2("DssiPlugin::setCustomData(\"%s\", \"%s\", \"%s\", %s) - type is invalid", type, key, value, bool2str(sendGui));

  271. 

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

  273.             return carla_stderr2("DssiPlugin::setCustomData(\"%s\", \"%s\", \"%s\", %s) - type is not string", type, key, value, bool2str(sendGui));

  274. 

  275.         if (key == nullptr)

  276.             return carla_stderr2("DssiPlugin::setCustomData(\"%s\", \"%s\", \"%s\", %s) - key is null", type, key, value, bool2str(sendGui));

  277. 

  278.         if (value == nullptr)

  279.             return carla_stderr2("DssiPlugin::setCustomData(\"%s\", \"%s\", \"%s\", %s) - value is null", type, key, value, bool2str(sendGui));

  280. 

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

  282.         {

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

  284. 

  285.             if (fHandle2)

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

  287.         }

  288. 

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

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

  291. 

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

  293.         {

  294.             const ScopedDisabler sd(this);

  295.             reloadPrograms(false);

  296.         }

  297. 

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

  299.     }

  300. 

  301.     void setChunkData(const char* const stringData)

  302.     {

  303.         CARLA_ASSERT(fOptions & PLUGIN_OPTION_USE_CHUNKS);

  304.         CARLA_ASSERT(fDssiDescriptor != nullptr);

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

  306.         CARLA_ASSERT(fHandle != nullptr);

  307.         CARLA_ASSERT(fHandle2 == nullptr);

  308.         CARLA_ASSERT(stringData != nullptr);

  309. 

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

  311.             return;

  312. 

  313.         // FIXME

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

  315.         //fChunk.toBase64();

  316. 

  317.         const ScopedSingleProcessLocker spl(this, true);

  318.         fDssiDescriptor->set_custom_data(fHandle, fChunk.data(), (unsigned long)fChunk.size());

  319.     }

  320. 

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

  322.     {

  323.         CARLA_ASSERT(fDssiDescriptor != nullptr);

  324.         CARLA_ASSERT(fHandle != nullptr);

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

  326. 

  327.         if (index < -1)

  328.             index = -1;

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

  330.             return;

  331. 

  332.         if (fDssiDescriptor != nullptr && fHandle != nullptr && index >= 0)

  333.         {

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

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

  336. 

  337.             const ScopedSingleProcessLocker spl(this, (sendGui || sendOsc || sendCallback));

  338. 

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

  340. 

  341.             if (fHandle2 != nullptr)

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

  343.         }

  344. 

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

  346.     }

  347. 

  348.     // -------------------------------------------------------------------

  349.     // Set gui stuff

  350. 

  351.     void showGui(const bool yesNo)

  352.     {

  353.         if (yesNo)

  354.         {

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

  356.         }

  357.         else

  358.         {

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

  360.             {

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

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

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

  364.             }

  365. 

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

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

  368.         }

  369.     }

  370. 

  371.     // -------------------------------------------------------------------

  372.     // Plugin state

  373. 

  374.     void reload()

  375.     {

  376.         carla_debug("DssiPlugin::reload() - start");

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

  378.         CARLA_ASSERT(fDescriptor != nullptr);

  379.         CARLA_ASSERT(fDssiDescriptor != nullptr);

  380.         CARLA_ASSERT(fHandle != nullptr);

  381. 

  382.         if (kData->engine == nullptr)

  383.             return;

  384.         if (fDescriptor == nullptr)

  385.             return;

  386.         if (fDssiDescriptor == nullptr)

  387.             return;

  388.         if (fHandle == nullptr)

  389.             return;

  390. 

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

  392. 

  393.         // Safely disable plugin for reload

  394.         const ScopedDisabler sd(this);

  395. 

  396.         if (kData->active)

  397.             deactivate();

  398. 

  399.         clearBuffers();

  400. 

  401.         const float   sampleRate = (float)kData->engine->getSampleRate();

  402.         const uint32_t portCount = static_cast<uint32_t>(fDescriptor->PortCount);

  403. 

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

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

  406. 

  407.         bool forcedStereoIn, forcedStereoOut;

  408.         forcedStereoIn = forcedStereoOut = false;

  409. 

  410.         bool needsCtrlIn, needsCtrlOut;

  411.         needsCtrlIn = needsCtrlOut = false;

  412. 

  413.         if (portCount > 0)

  414.         {

  415.             CARLA_ASSERT(fDescriptor->PortDescriptors != nullptr);

  416.             CARLA_ASSERT(fDescriptor->PortRangeHints != nullptr);

  417.             CARLA_ASSERT(fDescriptor->PortNames != nullptr);

  418. 

  419.             for (uint32_t i=0; i < portCount; ++i)

  420.             {

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

  422. 

  423.                 if (LADSPA_IS_PORT_AUDIO(portType))

  424.                 {

  425.                     if (LADSPA_IS_PORT_INPUT(portType))

  426.                         aIns += 1;

  427.                     else if (LADSPA_IS_PORT_OUTPUT(portType))

  428.                         aOuts += 1;

  429.                 }

  430.                 else if (LADSPA_IS_PORT_CONTROL(portType))

  431.                     params += 1;

  432.             }

  433.         }

  434. 

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

  436.         {

  437.             if (fHandle2 == nullptr)

  438.                 fHandle2 = fDescriptor->instantiate(fDescriptor, (unsigned long)sampleRate);

  439. 

  440.             if (aIns == 1)

  441.             {

  442.                 aIns = 2;

  443.                 forcedStereoIn = true;

  444.             }

  445. 

  446.             if (aOuts == 1)

  447.             {

  448.                 aOuts = 2;

  449.                 forcedStereoOut = true;

  450.             }

  451.         }

  452. 

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

  454.         {

  455.             mIns = 1;

  456.             needsCtrlIn = true;

  457.         }

  458. 

  459.         if (aIns > 0)

  460.         {

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

  462.             fAudioInBuffers = new float*[aIns];

  463. 

  464.             for (uint32_t i=0; i < aIns; ++i)

  465.                 fAudioInBuffers[i] = nullptr;

  466.         }

  467. 

  468.         if (aOuts > 0)

  469.         {

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

  471.             fAudioOutBuffers = new float*[aOuts];

  472.             needsCtrlIn = true;

  473. 

  474.             for (uint32_t i=0; i < aOuts; ++i)

  475.                 fAudioOutBuffers[i] = nullptr;

  476.         }

  477. 

  478.         if (params > 0)

  479.         {

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

  481.             fParamBuffers = new float[params];

  482. 

  483.             for (uint32_t i=0; i < params; ++i)

  484.                 fParamBuffers[i] = 0.0f;

  485.         }

  486. 

  487.         const uint  portNameSize = kData->engine->maxPortNameSize();

  488.         CarlaString portName;

  489. 

  490.         for (uint32_t i=0, iAudioIn=0, iAudioOut=0, iCtrl=0; i < portCount; ++i)

  491.         {

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

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

  494. 

  495.             CARLA_ASSERT(fDescriptor->PortNames[i] != nullptr);

  496. 

  497.             if (LADSPA_IS_PORT_AUDIO(portType))

  498.             {

  499.                 portName.clear();

  500. 

  501.                 if (processMode == PROCESS_MODE_SINGLE_CLIENT)

  502.                 {

  503.                     portName  = fName;

  504.                     portName += ":";

  505.                 }

  506. 

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

  508.                 portName.truncate(portNameSize);

  509. 

  510.                 if (LADSPA_IS_PORT_INPUT(portType))

  511.                 {

  512.                     j = iAudioIn++;

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

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

  515. 

  516.                     if (forcedStereoIn)

  517.                     {

  518.                         portName += "_2";

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

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

  521.                     }

  522.                 }

  523.                 else if (LADSPA_IS_PORT_OUTPUT(portType))

  524.                 {

  525.                     j = iAudioOut++;

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

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

  528. 

  529.                     if (forcedStereoOut)

  530.                     {

  531.                         portName += "_2";

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

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

  534.                     }

  535.                 }

  536.                 else

  537.                     carla_stderr2("WARNING - Got a broken Port (Audio, but not input or output)");

  538.             }

  539.             else if (LADSPA_IS_PORT_CONTROL(portType))

  540.             {

  541.                 j = iCtrl++;

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

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

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

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

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

  547. 

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

  549. 

  550.                 // min value

  551.                 if (LADSPA_IS_HINT_BOUNDED_BELOW(portRangeHints.HintDescriptor))

  552.                     min = portRangeHints.LowerBound;

  553.                 else

  554.                     min = 0.0f;

  555. 

  556.                 // max value

  557.                 if (LADSPA_IS_HINT_BOUNDED_ABOVE(portRangeHints.HintDescriptor))

  558.                     max = portRangeHints.UpperBound;

  559.                 else

  560.                     max = 1.0f;

  561. 

  562.                 if (min > max)

  563.                     max = min;

  564.                 else if (max < min)

  565.                     min = max;

  566. 

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

  568.                 {

  569.                     carla_stderr2("WARNING - Broken plugin parameter '%s': max - min == 0.0f", fDescriptor->PortNames[i]);

  570.                     max = min + 0.1f;

  571.                 }

  572. 

  573.                 // default value

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

  575. 

  576.                 if (def < min)

  577.                     def = min;

  578.                 else if (def > max)

  579.                     def = max;

  580. 

  581.                 if (LADSPA_IS_HINT_SAMPLE_RATE(portRangeHints.HintDescriptor))

  582.                 {

  583.                     min *= sampleRate;

  584.                     max *= sampleRate;

  585.                     def *= sampleRate;

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

  587.                 }

  588. 

  589.                 if (LADSPA_IS_HINT_TOGGLED(portRangeHints.HintDescriptor))

  590.                 {

  591.                     step = max - min;

  592.                     stepSmall = step;

  593.                     stepLarge = step;

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

  595.                 }

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

  597.                 {

  598.                     step = 1.0f;

  599.                     stepSmall = 1.0f;

  600.                     stepLarge = 10.0f;

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

  602.                 }

  603.                 else

  604.                 {

  605.                     float range = max - min;

  606.                     step = range/100.0f;

  607.                     stepSmall = range/1000.0f;

  608.                     stepLarge = range/10.0f;

  609.                 }

  610. 

  611.                 if (LADSPA_IS_PORT_INPUT(portType))

  612.                 {

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

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

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

  616.                     needsCtrlIn = true;

  617. 

  618.                     // MIDI CC value

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

  620.                     {

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

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

  623.                         {

  624.                             int16_t cc = DSSI_CC_NUMBER(controller);

  625.                             if (! MIDI_IS_CONTROL_BANK_SELECT(cc))

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

  627.                         }

  628.                     }

  629.                 }

  630.                 else if (LADSPA_IS_PORT_OUTPUT(portType))

  631.                 {

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

  633.                     {

  634.                         min = 0.0f;

  635.                         max = sampleRate;

  636.                         def = 0.0f;

  637.                         step = 1.0f;

  638.                         stepSmall = 1.0f;

  639.                         stepLarge = 1.0f;

  640. 

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

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

  643.                     }

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

  645.                     {

  646.                         def = sampleRate;

  647.                         step = 1.0f;

  648.                         stepSmall = 1.0f;

  649.                         stepLarge = 1.0f;

  650. 

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

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

  653.                     }

  654.                     else

  655.                     {

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

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

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

  659.                         needsCtrlOut = true;

  660.                     }

  661.                 }

  662.                 else

  663.                 {

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

  665.                     carla_stderr2("WARNING - Got a broken Port (Control, but not input or output)");

  666.                 }

  667. 

  668.                 // extra parameter hints

  669.                 if (LADSPA_IS_HINT_LOGARITHMIC(portRangeHints.HintDescriptor))

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

  671. 

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

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

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

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

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

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

  678. 

  679.                 // Start parameters in their default values

  680.                 fParamBuffers[j] = def;

  681. 

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

  683. 

  684.                 if (fHandle2 != nullptr)

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

  686.             }

  687.             else

  688.             {

  689.                 // Not Audio or Control

  690.                 carla_stderr2("ERROR - Got a broken Port (neither Audio or Control)");

  691. 

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

  693. 

  694.                 if (fHandle2 != nullptr)

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

  696.             }

  697.         }

  698. 

  699.         if (needsCtrlIn)

  700.         {

  701.             portName.clear();

  702. 

  703.             if (processMode == PROCESS_MODE_SINGLE_CLIENT)

  704.             {

  705.                 portName  = fName;

  706.                 portName += ":";

  707.             }

  708. 

  709.             portName += "event-in";

  710.             portName.truncate(portNameSize);

  711. 

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

  713.         }

  714. 

  715.         if (needsCtrlOut)

  716.         {

  717.             portName.clear();

  718. 

  719.             if (processMode == PROCESS_MODE_SINGLE_CLIENT)

  720.             {

  721.                 portName  = fName;

  722.                 portName += ":";

  723.             }

  724. 

  725.             portName += "event-out";

  726.             portName.truncate(portNameSize);

  727. 

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

  729.         }

  730. 

  731.         // plugin hints

  732.         const bool hasGUI    = (fHints & PLUGIN_HAS_GUI);

  733. #ifdef __USE_GNU

  734.         const bool isDssiVst = fFilename.contains("dssi-vst", true);

  735.         const bool isZASX    = fFilename.contains("zynaddsubfx", true);

  736. #else

  737.         const bool isDssiVst = fFilename.contains("dssi-vst");

  738.         const bool isZASX    = fFilename.contains("zynaddsubfx");

  739. #endif

  740. 

  741.         fHints = 0x0;

  742. 

  743.         if (hasGUI)

  744.             fHints |= PLUGIN_HAS_GUI;

  745. 

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

  747.             fHints |= PLUGIN_IS_SYNTH;

  748. 

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

  750.             fHints |= PLUGIN_CAN_DRYWET;

  751. 

  752.         if (aOuts > 0)

  753.             fHints |= PLUGIN_CAN_VOLUME;

  754. 

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

  756.             fHints |= PLUGIN_CAN_BALANCE;

  757. 

  758.         // extra plugin hints

  759.         kData->extraHints = 0x0;

  760. 

  761.         if (mIns > 0)

  762.             kData->extraHints |= PLUGIN_HINT_HAS_MIDI_IN;

  763. 

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

  765.             kData->extraHints |= PLUGIN_HINT_CAN_RUN_RACK;

  766. 

  767.         // plugin options

  768.         fOptions = 0x0;

  769. 

  770.         fOptions |= PLUGIN_OPTION_MAP_PROGRAM_CHANGES;

  771. 

  772.         if (forcedStereoIn || forcedStereoOut)

  773.             fOptions |= PLUGIN_OPTION_FORCE_STEREO;

  774. 

  775.         if (isDssiVst)

  776.         {

  777.             fOptions |= PLUGIN_OPTION_FIXED_BUFFER;

  778. 

  779.             if (kData->engine->getOptions().useDssiVstChunks && fDssiDescriptor->get_custom_data != nullptr && fDssiDescriptor->set_custom_data != nullptr)

  780.                 fOptions |= PLUGIN_OPTION_USE_CHUNKS;

  781.         }

  782.         else if (isZASX)

  783.         {

  784.             fOptions |= PLUGIN_OPTION_FIXED_BUFFER;

  785.         }

  786. 

  787.         if (mIns > 0)

  788.         {

  789.             fOptions |= PLUGIN_OPTION_SEND_CHANNEL_PRESSURE;

  790.             fOptions |= PLUGIN_OPTION_SEND_NOTE_AFTERTOUCH;

  791.             fOptions |= PLUGIN_OPTION_SEND_PITCHBEND;

  792.             fOptions |= PLUGIN_OPTION_SEND_ALL_SOUND_OFF;

  793.         }

  794. 

  795.         // check latency

  796.         if (fHints & PLUGIN_CAN_DRYWET)

  797.         {

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

  799.             {

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

  801.                     continue;

  802. 

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

  804. 

  805.                 float tmpIn[aIns][2];

  806.                 float tmpOut[aOuts][2];

  807. 

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

  809.                 {

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

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

  812. 

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

  814.                 }

  815. 

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

  817.                 {

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

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

  820. 

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

  822.                 }

  823. 

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

  825.                     fDescriptor->activate(fHandle);

  826. 

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

  828. 

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

  830.                     fDescriptor->deactivate(fHandle);

  831. 

  832.                 const uint32_t latency = (uint32_t)fParamBuffers[i];

  833. 

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

  835.                 {

  836.                     kData->latency = latency;

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

  838.                     kData->recreateLatencyBuffers();

  839.                 }

  840. 

  841.                 break;

  842.             }

  843.         }

  844. 

  845.         bufferSizeChanged(kData->engine->getBufferSize());

  846.         reloadPrograms(true);

  847. 

  848.         carla_debug("DssiPlugin::reload() - end");

  849.     }

  850. 

  851.     void reloadPrograms(const bool init)

  852.     {

  853.         carla_debug("DssiPlugin::reloadPrograms(%s)", bool2str(init));

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

  855.         const int32_t current = kData->midiprog.current;

  856. 

  857.         // Delete old programs

  858.         kData->midiprog.clear();

  859. 

  860.         // Query new programs

  861.         uint32_t count = 0;

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

  863.         {

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

  865.                 count++;

  866.         }

  867. 

  868.         if (count > 0)

  869.         {

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

  871. 

  872.             // Update data

  873.             for (i=0; i < count; ++i)

  874.             {

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

  876.                 CARLA_ASSERT(pdesc != nullptr);

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

  878. 

  879.                 kData->midiprog.data[i].bank    = static_cast<uint32_t>(pdesc->Bank);

  880.                 kData->midiprog.data[i].program = static_cast<uint32_t>(pdesc->Program);

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

  882.             }

  883.         }

  884. 

  885. #ifndef BUILD_BRIDGE

  886.         // Update OSC Names

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

  888.         {

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

  890. 

  891.             for (i=0; i < count; ++i)

  892.                 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);

  893.         }

  894. #endif

  895. 

  896.         if (init)

  897.         {

  898.             if (count > 0)

  899.                 setMidiProgram(0, false, false, false);

  900.         }

  901.         else

  902.         {

  903.             // Check if current program is invalid

  904.             bool programChanged = false;

  905. 

  906.             if (count == oldCount+1)

  907.             {

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

  909.                 kData->midiprog.current = oldCount;

  910.                 programChanged = true;

  911.             }

  912.             else if (current < 0 && count > 0)

  913.             {

  914.                 // programs exist now, but not before

  915.                 kData->midiprog.current = 0;

  916.                 programChanged = true;

  917.             }

  918.             else if (current >= 0 && count == 0)

  919.             {

  920.                 // programs existed before, but not anymore

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

  922.                 programChanged = true;

  923.             }

  924.             else if (current >= static_cast<int32_t>(count))

  925.             {

  926.                 // current midi program > count

  927.                 kData->midiprog.current = 0;

  928.                 programChanged = true;

  929.             }

  930.             else

  931.             {

  932.                 // no change

  933.                 kData->midiprog.current = current;

  934.             }

  935. 

  936.             if (programChanged)

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

  938. 

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

  940.         }

  941.     }

  942. 

  943.     // -------------------------------------------------------------------

  944.     // Plugin processing

  945. 

  946.     void activate()

  947.     {

  948.         CARLA_ASSERT(fDescriptor != nullptr);

  949. 

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

  951.         {

  952.             fDescriptor->activate(fHandle);

  953. 

  954.             if (fHandle2 != nullptr)

  955.                 fDescriptor->activate(fHandle2);

  956.         }

  957.     }

  958. 

  959.     void deactivate()

  960.     {

  961.         CARLA_ASSERT(fDescriptor != nullptr);

  962. 

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

  964.         {

  965.             fDescriptor->deactivate(fHandle);

  966. 

  967.             if (fHandle2 != nullptr)

  968.                 fDescriptor->deactivate(fHandle2);

  969.         }

  970.     }

  971. 

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

  973.     {

  974.         uint32_t i, k;

  975. 

  976.         // --------------------------------------------------------------------------------------------------------

  977.         // Check if active

  978. 

  979.         if (! kData->active)

  980.         {

  981.             // disable any output sound

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

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

  984. 

  985.             return;

  986.         }

  987. 

  988.         unsigned long midiEventCount = 0;

  989. 

  990.         // --------------------------------------------------------------------------------------------------------

  991.         // Check if not active before

  992. 

  993.         if (kData->needsReset)

  994.         {

  995.             // TODO!

  996.             if (fOptions & PLUGIN_OPTION_SEND_ALL_SOUND_OFF)

  997.             {

  998.                 for (unsigned char j=0, l=MAX_MIDI_CHANNELS; j < MAX_MIDI_CHANNELS; ++j)

  999.                 {

  1000.                     carla_zeroStruct<snd_seq_event_t>(fMidiEvents[j]);

  1001.                     carla_zeroStruct<snd_seq_event_t>(fMidiEvents[j+l]);

  1002. 

  1003.                     fMidiEvents[j].type = SND_SEQ_EVENT_CONTROLLER;

  1004.                     fMidiEvents[j].data.control.channel = j;

  1005.                     fMidiEvents[j].data.control.param   = MIDI_CONTROL_ALL_SOUND_OFF;

  1006. 

  1007.                     fMidiEvents[j+l].type = SND_SEQ_EVENT_CONTROLLER;

  1008.                     fMidiEvents[j+l].data.control.channel = j;

  1009.                     fMidiEvents[j+l].data.control.param   = MIDI_CONTROL_ALL_NOTES_OFF;

  1010.                 }

  1011. 

  1012.                 midiEventCount = MAX_MIDI_CHANNELS*2;

  1013.             }

  1014.             else

  1015.             {

  1016.             }

  1017. 

  1018.             if (kData->latency > 0)

  1019.             {

  1020.                 for (i=0; i < kData->audioIn.count; ++i)

  1021.                     carla_zeroFloat(kData->latencyBuffers[i], kData->latency);

  1022.             }

  1023. 

  1024.             kData->needsReset = false;

  1025.         }

  1026. 

  1027.         // --------------------------------------------------------------------------------------------------------

  1028.         // Event Input and Processing

  1029. 

  1030.         if (kData->event.portIn != nullptr)

  1031.         {

  1032.             // ----------------------------------------------------------------------------------------------------

  1033.             // MIDI Input (External)

  1034. 

  1035.             if (kData->extNotes.mutex.tryLock())

  1036.             {

  1037.                 while (midiEventCount < MAX_MIDI_EVENTS && ! kData->extNotes.data.isEmpty())

  1038.                 {

  1039.                     const ExternalMidiNote& note = kData->extNotes.data.getFirst(true);

  1040. 

  1041.                     CARLA_ASSERT(note.channel >= 0);

  1042. 

  1043.                     carla_zeroStruct<snd_seq_event_t>(fMidiEvents[midiEventCount]);

  1044. 

  1045.                     fMidiEvents[midiEventCount].type               = (note.velo > 0) ? SND_SEQ_EVENT_NOTEON : SND_SEQ_EVENT_NOTEOFF;

  1046.                     fMidiEvents[midiEventCount].data.note.channel  = note.channel;

  1047.                     fMidiEvents[midiEventCount].data.note.note     = note.note;

  1048.                     fMidiEvents[midiEventCount].data.note.velocity = note.velo;

  1049. 

  1050.                     midiEventCount += 1;

  1051.                 }

  1052. 

  1053.                 kData->extNotes.mutex.unlock();

  1054. 

  1055.             } // End of MIDI Input (External)

  1056. 

  1057.             // ----------------------------------------------------------------------------------------------------

  1058.             // Event Input (System)

  1059. 

  1060.             bool allNotesOffSent = false;

  1061.             bool sampleAccurate  = (fOptions & PLUGIN_OPTION_FIXED_BUFFER) == 0;

  1062. 

  1063.             uint32_t time, nEvents = kData->event.portIn->getEventCount();

  1064.             uint32_t startTime  = 0;

  1065.             uint32_t timeOffset = 0;

  1066. 

  1067.             uint32_t nextBankId = 0;

  1068.             if (kData->midiprog.current >= 0 && kData->midiprog.count > 0)

  1069.                 nextBankId = kData->midiprog.data[kData->midiprog.current].bank;

  1070. 

  1071.             for (i=0; i < nEvents; ++i)

  1072.             {

  1073.                 const EngineEvent& event = kData->event.portIn->getEvent(i);

  1074. 

  1075.                 time = event.time;

  1076. 

  1077.                 if (time >= frames)

  1078.                     continue;

  1079. 

  1080.                 CARLA_ASSERT_INT2(time >= timeOffset, time, timeOffset);

  1081. 

  1082.                 if (time > timeOffset && sampleAccurate)

  1083.                 {

  1084.                     if (processSingle(inBuffer, outBuffer, time - timeOffset, timeOffset, midiEventCount))

  1085.                     {

  1086.                         startTime  = 0;

  1087.                         timeOffset = time;

  1088.                         midiEventCount = 0;

  1089. 

  1090.                         if (kData->midiprog.current >= 0 && kData->midiprog.count > 0)

  1091.                             nextBankId = kData->midiprog.data[kData->midiprog.current].bank;

  1092.                         else

  1093.                             nextBankId = 0;

  1094.                     }

  1095.                     else

  1096.                         startTime += timeOffset;

  1097.                 }

  1098. 

  1099.                 // Control change

  1100.                 switch (event.type)

  1101.                 {

  1102.                 case kEngineEventTypeNull:

  1103.                     break;

  1104. 

  1105.                 case kEngineEventTypeControl:

  1106.                 {

  1107.                     const EngineControlEvent& ctrlEvent = event.ctrl;

  1108. 

  1109.                     switch (ctrlEvent.type)

  1110.                     {

  1111.                     case kEngineControlEventTypeNull:

  1112.                         break;

  1113. 

  1114.                     case kEngineControlEventTypeParameter:

  1115.                     {

  1116.                         // Control backend stuff

  1117.                         if (event.channel == kData->ctrlChannel)

  1118.                         {

  1119.                             float value;

  1120. 

  1121.                             if (MIDI_IS_CONTROL_BREATH_CONTROLLER(ctrlEvent.param) && (fHints & PLUGIN_CAN_DRYWET) > 0)

  1122.                             {

  1123.                                 value = ctrlEvent.value;

  1124.                                 setDryWet(value, false, false);

  1125.                                 postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_DRYWET, 0, value);

  1126.                                 continue;

  1127.                             }

  1128. 

  1129.                             if (MIDI_IS_CONTROL_CHANNEL_VOLUME(ctrlEvent.param) && (fHints & PLUGIN_CAN_VOLUME) > 0)

  1130.                             {

  1131.                                 value = ctrlEvent.value*127.0f/100.0f;

  1132.                                 setVolume(value, false, false);

  1133.                                 postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_VOLUME, 0, value);

  1134.                                 continue;

  1135.                             }

  1136. 

  1137.                             if (MIDI_IS_CONTROL_BALANCE(ctrlEvent.param) && (fHints & PLUGIN_CAN_BALANCE) > 0)

  1138.                             {

  1139.                                 float left, right;

  1140.                                 value = ctrlEvent.value/0.5f - 1.0f;

  1141. 

  1142.                                 if (value < 0.0f)

  1143.                                 {

  1144.                                     left  = -1.0f;

  1145.                                     right = (value*2.0f)+1.0f;

  1146.                                 }

  1147.                                 else if (value > 0.0f)

  1148.                                 {

  1149.                                     left  = (value*2.0f)-1.0f;

  1150.                                     right = 1.0f;

  1151.                                 }

  1152.                                 else

  1153.                                 {

  1154.                                     left  = -1.0f;

  1155.                                     right = 1.0f;

  1156.                                 }

  1157. 

  1158.                                 setBalanceLeft(left, false, false);

  1159.                                 setBalanceRight(right, false, false);

  1160.                                 postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_BALANCE_LEFT, 0, left);

  1161.                                 postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_BALANCE_RIGHT, 0, right);

  1162.                                 continue;

  1163.                             }

  1164.                         }

  1165. 

  1166.                         // Control plugin parameters

  1167.                         for (k=0; k < kData->param.count; ++k)

  1168.                         {

  1169.                             if (kData->param.data[k].midiChannel != event.channel)

  1170.                                 continue;

  1171.                             if (kData->param.data[k].midiCC != ctrlEvent.param)

  1172.                                 continue;

  1173.                             if (kData->param.data[k].type != PARAMETER_INPUT)

  1174.                                 continue;

  1175.                             if ((kData->param.data[k].hints & PARAMETER_IS_AUTOMABLE) == 0)

  1176.                                 continue;

  1177. 

  1178.                             float value;

  1179. 

  1180.                             if (kData->param.data[k].hints & PARAMETER_IS_BOOLEAN)

  1181.                             {

  1182.                                 value = (ctrlEvent.value < 0.5f) ? kData->param.ranges[k].min : kData->param.ranges[k].max;

  1183.                             }

  1184.                             else

  1185.                             {

  1186.                                 value = kData->param.ranges[i].unnormalizeValue(ctrlEvent.value);

  1187. 

  1188.                                 if (kData->param.data[k].hints & PARAMETER_IS_INTEGER)

  1189.                                     value = std::rint(value);

  1190.                             }

  1191. 

  1192.                             setParameterValue(k, value, false, false, false);

  1193.                             postponeRtEvent(kPluginPostRtEventParameterChange, static_cast<int32_t>(k), 0, value);

  1194.                         }

  1195. 

  1196.                         break;

  1197.                     }

  1198. 

  1199.                     case kEngineControlEventTypeMidiBank:

  1200.                         if (event.channel == kData->ctrlChannel && (fOptions & PLUGIN_OPTION_MAP_PROGRAM_CHANGES) != 0)

  1201.                             nextBankId = ctrlEvent.param;

  1202.                         break;

  1203. 

  1204.                     case kEngineControlEventTypeMidiProgram:

  1205.                         if (event.channel == kData->ctrlChannel && (fOptions & PLUGIN_OPTION_MAP_PROGRAM_CHANGES) != 0)

  1206.                         {

  1207.                             const uint32_t nextProgramId = ctrlEvent.param;

  1208. 

  1209.                             for (k=0; k < kData->midiprog.count; ++k)

  1210.                             {

  1211.                                 if (kData->midiprog.data[k].bank == nextBankId && kData->midiprog.data[k].program == nextProgramId)

  1212.                                 {

  1213.                                     setMidiProgram(k, false, false, false);

  1214.                                     postponeRtEvent(kPluginPostRtEventMidiProgramChange, k, 0, 0.0f);

  1215.                                     break;

  1216.                                 }

  1217.                             }

  1218.                         }

  1219.                         break;

  1220. 

  1221.                     case kEngineControlEventTypeAllSoundOff:

  1222.                         if (event.channel == kData->ctrlChannel)

  1223.                         {

  1224.                             if (! allNotesOffSent)

  1225.                             {

  1226.                                 sendMidiAllNotesOff();

  1227.                                 allNotesOffSent = true;

  1228.                             }

  1229. 

  1230.                             if (fDescriptor->deactivate != nullptr)

  1231.                             {

  1232.                                 fDescriptor->deactivate(fHandle);

  1233. 

  1234.                                 if (fHandle2 != nullptr)

  1235.                                     fDescriptor->deactivate(fHandle2);

  1236.                             }

  1237. 

  1238.                             if (fDescriptor->activate != nullptr)

  1239.                             {

  1240.                                 fDescriptor->activate(fHandle);

  1241. 

  1242.                                 if (fHandle2 != nullptr)

  1243.                                     fDescriptor->activate(fHandle2);

  1244.                             }

  1245. 

  1246.                             postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_ACTIVE, 0, 0.0f);

  1247.                             postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_ACTIVE, 0, 1.0f);

  1248.                         }

  1249. 

  1250.                         if (midiEventCount >= MAX_MIDI_EVENTS)

  1251.                             continue;

  1252. 

  1253.                         if (fOptions & PLUGIN_OPTION_SEND_ALL_SOUND_OFF)

  1254.                         {

  1255.                             carla_zeroStruct<snd_seq_event_t>(fMidiEvents[midiEventCount]);

  1256. 

  1257.                             fMidiEvents[midiEventCount].time.tick = sampleAccurate ? startTime : time;

  1258. 

  1259.                             fMidiEvents[midiEventCount].type = SND_SEQ_EVENT_CONTROLLER;

  1260.                             fMidiEvents[midiEventCount].data.control.channel = event.channel;

  1261.                             fMidiEvents[midiEventCount].data.control.param   = MIDI_CONTROL_ALL_SOUND_OFF;

  1262. 

  1263.                             midiEventCount += 1;

  1264.                         }

  1265. 

  1266.                         break;

  1267. 

  1268.                     case kEngineControlEventTypeAllNotesOff:

  1269.                         if (event.channel == kData->ctrlChannel)

  1270.                         {

  1271.                             if (! allNotesOffSent)

  1272.                             {

  1273.                                 allNotesOffSent = true;

  1274.                                 sendMidiAllNotesOff();

  1275.                             }

  1276.                         }

  1277. 

  1278.                         if (midiEventCount >= MAX_MIDI_EVENTS)

  1279.                             continue;

  1280. 

  1281.                         if (fOptions & PLUGIN_OPTION_SEND_ALL_SOUND_OFF)

  1282.                         {

  1283.                             carla_zeroStruct<snd_seq_event_t>(fMidiEvents[midiEventCount]);

  1284. 

  1285.                             fMidiEvents[midiEventCount].time.tick = sampleAccurate ? startTime : time;

  1286. 

  1287.                             fMidiEvents[midiEventCount].type = SND_SEQ_EVENT_CONTROLLER;

  1288.                             fMidiEvents[midiEventCount].data.control.channel = event.channel;

  1289.                             fMidiEvents[midiEventCount].data.control.param   = MIDI_CONTROL_ALL_NOTES_OFF;

  1290. 

  1291.                             midiEventCount += 1;

  1292.                         }

  1293. 

  1294.                         break;

  1295.                     }

  1296. 

  1297.                     break;

  1298.                 }

  1299. 

  1300.                 case kEngineEventTypeMidi:

  1301.                 {

  1302.                     if (midiEventCount >= MAX_MIDI_EVENTS)

  1303.                         continue;

  1304. 

  1305.                     const EngineMidiEvent& midiEvent = event.midi;

  1306. 

  1307.                     uint8_t status  = MIDI_GET_STATUS_FROM_DATA(midiEvent.data);

  1308.                     uint8_t channel = event.channel;

  1309. 

  1310.                     // Fix bad note-off (per DSSI spec)

  1311.                     if (MIDI_IS_STATUS_NOTE_ON(status) && midiEvent.data[2] == 0)

  1312.                         status -= 0x10;

  1313. 

  1314.                     carla_zeroStruct<snd_seq_event_t>(fMidiEvents[midiEventCount]);

  1315. 

  1316.                     fMidiEvents[midiEventCount].time.tick = sampleAccurate ? startTime : time;

  1317. 

  1318.                     if (MIDI_IS_STATUS_NOTE_OFF(status))

  1319.                     {

  1320.                         const uint8_t note = midiEvent.data[1];

  1321. 

  1322.                         fMidiEvents[midiEventCount].type = SND_SEQ_EVENT_NOTEOFF;

  1323.                         fMidiEvents[midiEventCount].data.note.channel = channel;

  1324.                         fMidiEvents[midiEventCount].data.note.note    = note;

  1325. 

  1326.                         postponeRtEvent(kPluginPostRtEventNoteOff, channel, note, 0.0f);

  1327.                     }

  1328.                     else if (MIDI_IS_STATUS_NOTE_ON(status))

  1329.                     {

  1330.                         const uint8_t note = midiEvent.data[1];

  1331.                         const uint8_t velo = midiEvent.data[2];

  1332. 

  1333.                         fMidiEvents[midiEventCount].type = SND_SEQ_EVENT_NOTEON;

  1334.                         fMidiEvents[midiEventCount].data.note.channel  = channel;

  1335.                         fMidiEvents[midiEventCount].data.note.note     = note;

  1336.                         fMidiEvents[midiEventCount].data.note.velocity = velo;

  1337. 

  1338.                         postponeRtEvent(kPluginPostRtEventNoteOn, channel, note, velo);

  1339.                     }

  1340.                     else if (MIDI_IS_STATUS_POLYPHONIC_AFTERTOUCH(status) && (fOptions & PLUGIN_OPTION_SEND_NOTE_AFTERTOUCH) != 0)

  1341.                     {

  1342.                         const uint8_t note     = midiEvent.data[1];

  1343.                         const uint8_t pressure = midiEvent.data[2];

  1344. 

  1345.                         fMidiEvents[midiEventCount].type = SND_SEQ_EVENT_KEYPRESS;

  1346.                         fMidiEvents[midiEventCount].data.note.channel  = channel;

  1347.                         fMidiEvents[midiEventCount].data.note.note     = note;

  1348.                         fMidiEvents[midiEventCount].data.note.velocity = pressure;

  1349.                     }

  1350.                     else if (MIDI_IS_STATUS_CONTROL_CHANGE(status) && (fOptions & PLUGIN_OPTION_SEND_CONTROL_CHANGES) != 0)

  1351.                     {

  1352.                         const uint8_t control = midiEvent.data[1];

  1353.                         const uint8_t value   = midiEvent.data[2];

  1354. 

  1355.                         fMidiEvents[midiEventCount].type = SND_SEQ_EVENT_CONTROLLER;

  1356.                         fMidiEvents[midiEventCount].data.control.channel = channel;

  1357.                         fMidiEvents[midiEventCount].data.control.param   = control;

  1358.                         fMidiEvents[midiEventCount].data.control.value   = value;

  1359.                     }

  1360.                     else if (MIDI_IS_STATUS_AFTERTOUCH(status) && (fOptions & PLUGIN_OPTION_SEND_CHANNEL_PRESSURE) != 0)

  1361.                     {

  1362.                         const uint8_t pressure = midiEvent.data[1];

  1363. 

  1364.                         fMidiEvents[midiEventCount].type = SND_SEQ_EVENT_CHANPRESS;

  1365.                         fMidiEvents[midiEventCount].data.control.channel = channel;

  1366.                         fMidiEvents[midiEventCount].data.control.value   = pressure;

  1367.                     }

  1368.                     else if (MIDI_IS_STATUS_PITCH_WHEEL_CONTROL(status) && (fOptions & PLUGIN_OPTION_SEND_PITCHBEND) != 0)

  1369.                     {

  1370.                         const uint8_t lsb = midiEvent.data[1];

  1371.                         const uint8_t msb = midiEvent.data[2];

  1372. 

  1373.                         fMidiEvents[midiEventCount].type = SND_SEQ_EVENT_PITCHBEND;

  1374.                         fMidiEvents[midiEventCount].data.control.channel = channel;

  1375.                         fMidiEvents[midiEventCount].data.control.value   = ((msb << 7) | lsb) - 8192;

  1376.                     }

  1377.                     else

  1378.                         continue;

  1379. 

  1380.                     midiEventCount += 1;

  1381. 

  1382.                     break;

  1383.                 }

  1384.                 }

  1385.             }

  1386. 

  1387.             kData->postRtEvents.trySplice();

  1388. 

  1389.             if (frames > timeOffset)

  1390.                 processSingle(inBuffer, outBuffer, frames - timeOffset, timeOffset, midiEventCount);

  1391. 

  1392.         } // End of Event Input and Processing

  1393. 

  1394.         // --------------------------------------------------------------------------------------------------------

  1395.         // Plugin processing (no events)

  1396. 

  1397.         else

  1398.         {

  1399.             processSingle(inBuffer, outBuffer, frames, 0, midiEventCount);

  1400. 

  1401.         } // End of Plugin processing (no events)

  1402. 

  1403.         CARLA_PROCESS_CONTINUE_CHECK;

  1404. 

  1405.         // --------------------------------------------------------------------------------------------------------

  1406.         // Control Output

  1407. 

  1408.         if (kData->event.portOut != nullptr)

  1409.         {

  1410.             uint8_t  channel;

  1411.             uint16_t param;

  1412.             float    value;

  1413. 

  1414.             for (k=0; k < kData->param.count; ++k)

  1415.             {

  1416.                 if (kData->param.data[k].type != PARAMETER_OUTPUT)

  1417.                     continue;

  1418. 

  1419.                 kData->param.ranges[k].fixValue(fParamBuffers[k]);

  1420. 

  1421.                 if (kData->param.data[k].midiCC > 0)

  1422.                 {

  1423.                     channel = kData->param.data[k].midiChannel;

  1424.                     param   = static_cast<uint16_t>(kData->param.data[k].midiCC);

  1425.                     value   = kData->param.ranges[k].normalizeValue(fParamBuffers[k]);

  1426.                     kData->event.portOut->writeControlEvent(0, channel, kEngineControlEventTypeParameter, param, value);

  1427.                 }

  1428.             }

  1429. 

  1430.         } // End of Control Output

  1431. 

  1432.         // --------------------------------------------------------------------------------------------------------

  1433. 

  1434.         //kData->activeBefore = kData->active;

  1435.     }

  1436. 

  1437.     bool processSingle(float** const inBuffer, float** const outBuffer, const uint32_t frames, const uint32_t timeOffset, const unsigned long midiEventCount)

  1438.     {

  1439.         CARLA_ASSERT(frames > 0);

  1440. 

  1441.         if (frames == 0)

  1442.             return false;

  1443. 

  1444.         if (kData->audioIn.count > 0)

  1445.         {

  1446.             CARLA_ASSERT(inBuffer != nullptr);

  1447.             if (inBuffer == nullptr)

  1448.                 return false;

  1449.         }

  1450.         if (kData->audioOut.count > 0)

  1451.         {

  1452.             CARLA_ASSERT(outBuffer != nullptr);

  1453.             if (outBuffer == nullptr)

  1454.                 return false;

  1455.         }

  1456. 

  1457.         uint32_t i, k;

  1458. 

  1459.         // --------------------------------------------------------------------------------------------------------

  1460.         // Try lock, silence otherwise

  1461. 

  1462.         if (kData->engine->isOffline())

  1463.         {

  1464.             kData->singleMutex.lock();

  1465.         }

  1466.         else if (! kData->singleMutex.tryLock())

  1467.         {

  1468.             for (i=0; i < kData->audioOut.count; ++i)

  1469.             {

  1470.                 for (k=0; k < frames; ++k)

  1471.                     outBuffer[i][k+timeOffset] = 0.0f;

  1472.             }

  1473. 

  1474.             return false;

  1475.         }

  1476. 

  1477.         // --------------------------------------------------------------------------------------------------------

  1478.         // Reset audio buffers

  1479. 

  1480.         for (i=0; i < kData->audioIn.count; ++i)

  1481.             carla_copyFloat(fAudioInBuffers[i], inBuffer[i]+timeOffset, frames);

  1482.         for (i=0; i < kData->audioOut.count; ++i)

  1483.             carla_zeroFloat(fAudioOutBuffers[i], frames);

  1484. 

  1485.         // --------------------------------------------------------------------------------------------------------

  1486.         // Run plugin

  1487. 

  1488.         if (fDssiDescriptor->run_synth != nullptr)

  1489.         {

  1490.             fDssiDescriptor->run_synth(fHandle, frames, fMidiEvents, midiEventCount);

  1491. 

  1492.             if (fHandle2 != nullptr)

  1493.                 fDssiDescriptor->run_synth(fHandle2, frames, fMidiEvents, midiEventCount);

  1494.         }

  1495.         else if (fDssiDescriptor->run_multiple_synths != nullptr)

  1496.         {

  1497.             unsigned long instances = (fHandle2 != nullptr) ? 2 : 1;

  1498.             LADSPA_Handle handlePtr[2] = { fHandle, fHandle2 };

  1499.             snd_seq_event_t* midiEventsPtr[2] = { fMidiEvents, fMidiEvents };

  1500.             unsigned long midiEventCountPtr[2] = { midiEventCount, midiEventCount };

  1501.             fDssiDescriptor->run_multiple_synths(instances, handlePtr, frames, midiEventsPtr, midiEventCountPtr);

  1502.         }

  1503.         else

  1504.         {

  1505.             fDescriptor->run(fHandle, frames);

  1506. 

  1507.             if (fHandle2 != nullptr)

  1508.                 fDescriptor->run(fHandle2, frames);

  1509.         }

  1510. 

  1511.         // --------------------------------------------------------------------------------------------------------

  1512.         // Post-processing (dry/wet, volume and balance)

  1513. 

  1514.         {

  1515.             const bool doDryWet  = (fHints & PLUGIN_CAN_DRYWET) != 0 && kData->postProc.dryWet != 1.0f;

  1516.             const bool doBalance = (fHints & PLUGIN_CAN_BALANCE) != 0 && (kData->postProc.balanceLeft != -1.0f || kData->postProc.balanceRight != 1.0f);

  1517. 

  1518.             bool isPair;

  1519.             float bufValue, oldBufLeft[doBalance ? frames : 1];

  1520. 

  1521.             for (i=0; i < kData->audioOut.count; ++i)

  1522.             {

  1523.                 // Dry/Wet

  1524.                 if (doDryWet)

  1525.                 {

  1526.                     for (k=0; k < frames; ++k)

  1527.                     {

  1528.                         // TODO

  1529.                         //if (k < kData->latency && kData->latency < frames)

  1530.                         //    bufValue = (kData->audioIn.count == 1) ? kData->latencyBuffers[0][k] : kData->latencyBuffers[i][k];

  1531.                         //else

  1532.                         //    bufValue = (kData->audioIn.count == 1) ? inBuffer[0][k-m_latency] : inBuffer[i][k-m_latency];

  1533. 

  1534.                         bufValue = fAudioInBuffers[(kData->audioIn.count == 1) ? 0 : i][k];

  1535.                         fAudioOutBuffers[i][k] = (fAudioOutBuffers[i][k] * kData->postProc.dryWet) + (bufValue * (1.0f - kData->postProc.dryWet));

  1536.                     }

  1537.                 }

  1538. 

  1539.                 // Balance

  1540.                 if (doBalance)

  1541.                 {

  1542.                     isPair = (i % 2 == 0);

  1543. 

  1544.                     if (isPair)

  1545.                     {

  1546.                         CARLA_ASSERT(i+1 < kData->audioOut.count);

  1547.                         carla_copyFloat(oldBufLeft, fAudioOutBuffers[i], frames);

  1548.                     }

  1549. 

  1550.                     float balRangeL = (kData->postProc.balanceLeft  + 1.0f)/2.0f;

  1551.                     float balRangeR = (kData->postProc.balanceRight + 1.0f)/2.0f;

  1552. 

  1553.                     for (k=0; k < frames; ++k)

  1554.                     {

  1555.                         if (isPair)

  1556.                         {

  1557.                             // left

  1558.                             fAudioOutBuffers[i][k]  = oldBufLeft[k]            * (1.0f - balRangeL);

  1559.                             fAudioOutBuffers[i][k] += fAudioOutBuffers[i+1][k] * (1.0f - balRangeR);

  1560.                         }

  1561.                         else

  1562.                         {

  1563.                             // right

  1564.                             fAudioOutBuffers[i][k]  = fAudioOutBuffers[i][k] * balRangeR;

  1565.                             fAudioOutBuffers[i][k] += oldBufLeft[k]          * balRangeL;

  1566.                         }

  1567.                     }

  1568.                 }

  1569. 

  1570.                 // Volume (and buffer copy)

  1571.                 {

  1572.                     for (k=0; k < frames; ++k)

  1573.                         outBuffer[i][k+timeOffset] = fAudioOutBuffers[i][k] * kData->postProc.volume;

  1574.                 }

  1575.             }

  1576. 

  1577. #if 0

  1578.             // Latency, save values for next callback, TODO

  1579.             if (kData->latency > 0 && kData->latency < frames)

  1580.             {

  1581.                 for (i=0; i < kData->audioIn.count; ++i)

  1582.                     carla_copyFloat(kData->latencyBuffers[i], inBuffer[i] + (frames - kData->latency), kData->latency);

  1583.             }

  1584. #endif

  1585.         } // End of Post-processing

  1586. 

  1587.         // --------------------------------------------------------------------------------------------------------

  1588. 

  1589.         kData->singleMutex.unlock();

  1590.         return true;

  1591.     }

  1592. 

  1593.     void bufferSizeChanged(const uint32_t newBufferSize)

  1594.     {

  1595.         carla_debug("DssiPlugin::bufferSizeChanged(%i) - start", newBufferSize);

  1596. 

  1597.         for (uint32_t i=0; i < kData->audioIn.count; ++i)

  1598.         {

  1599.             if (fAudioInBuffers[i] != nullptr)

  1600.                 delete[] fAudioInBuffers[i];

  1601.             fAudioInBuffers[i] = new float[newBufferSize];

  1602.         }

  1603. 

  1604.         for (uint32_t i=0; i < kData->audioOut.count; ++i)

  1605.         {

  1606.             if (fAudioOutBuffers[i] != nullptr)

  1607.                 delete[] fAudioOutBuffers[i];

  1608.             fAudioOutBuffers[i] = new float[newBufferSize];

  1609.         }

  1610. 

  1611.         if (fHandle2 == nullptr)

  1612.         {

  1613.             for (uint32_t i=0; i < kData->audioIn.count; ++i)

  1614.             {

  1615.                 CARLA_ASSERT(fAudioInBuffers[i] != nullptr);

  1616.                 fDescriptor->connect_port(fHandle, kData->audioIn.ports[i].rindex, fAudioInBuffers[i]);

  1617.             }

  1618. 

  1619.             for (uint32_t i=0; i < kData->audioOut.count; ++i)

  1620.             {

  1621.                 CARLA_ASSERT(fAudioOutBuffers[i] != nullptr);

  1622.                 fDescriptor->connect_port(fHandle, kData->audioOut.ports[i].rindex, fAudioOutBuffers[i]);

  1623.             }

  1624.         }

  1625.         else

  1626.         {

  1627.             if (kData->audioIn.count > 0)

  1628.             {

  1629.                 CARLA_ASSERT(kData->audioIn.count == 2);

  1630.                 CARLA_ASSERT(fAudioInBuffers[0] != nullptr);

  1631.                 CARLA_ASSERT(fAudioInBuffers[1] != nullptr);

  1632. 

  1633.                 fDescriptor->connect_port(fHandle,  kData->audioIn.ports[0].rindex, fAudioInBuffers[0]);

  1634.                 fDescriptor->connect_port(fHandle2, kData->audioIn.ports[1].rindex, fAudioInBuffers[1]);

  1635.             }

  1636. 

  1637.             if (kData->audioOut.count > 0)

  1638.             {

  1639.                 CARLA_ASSERT(kData->audioOut.count == 2);

  1640.                 CARLA_ASSERT(fAudioOutBuffers[0] != nullptr);

  1641.                 CARLA_ASSERT(fAudioOutBuffers[1] != nullptr);

  1642. 

  1643.                 fDescriptor->connect_port(fHandle,  kData->audioOut.ports[0].rindex, fAudioOutBuffers[0]);

  1644.                 fDescriptor->connect_port(fHandle2, kData->audioOut.ports[1].rindex, fAudioOutBuffers[1]);

  1645.             }

  1646.         }

  1647. 

  1648.         carla_debug("DssiPlugin::bufferSizeChanged(%i) - start", newBufferSize);

  1649.     }

  1650. 

  1651.     // -------------------------------------------------------------------

  1652.     // Post-poned events

  1653. 

  1654.     void uiParameterChange(const uint32_t index, const float value)

  1655.     {

  1656.         CARLA_ASSERT(index < kData->param.count);

  1657. 

  1658.         if (index >= kData->param.count)

  1659.             return;

  1660.         if (kData->osc.data.target == nullptr)

  1661.             return;

  1662. 

  1663.         osc_send_control(&kData->osc.data, kData->param.data[index].rindex, value);

  1664.     }

  1665. 

  1666.     void uiMidiProgramChange(const uint32_t index)

  1667.     {

  1668.         CARLA_ASSERT(index < kData->midiprog.count);

  1669. 

  1670.         if (index >= kData->midiprog.count)

  1671.             return;

  1672.         if (kData->osc.data.target == nullptr)

  1673.             return;

  1674. 

  1675.         osc_send_program(&kData->osc.data, kData->midiprog.data[index].bank, kData->midiprog.data[index].program);

  1676.     }

  1677. 

  1678.     void uiNoteOn(const uint8_t channel, const uint8_t note, const uint8_t velo)

  1679.     {

  1680.         CARLA_ASSERT(channel < MAX_MIDI_CHANNELS);

  1681.         CARLA_ASSERT(note < MAX_MIDI_NOTE);

  1682.         CARLA_ASSERT(velo > 0 && velo < MAX_MIDI_VALUE);

  1683. 

  1684.         if (channel >= MAX_MIDI_CHANNELS)

  1685.             return;

  1686.         if (note >= MAX_MIDI_NOTE)

  1687.             return;

  1688.         if (velo >= MAX_MIDI_VALUE)

  1689.             return;

  1690.         if (kData->osc.data.target == nullptr)

  1691.             return;

  1692. 

  1693.         uint8_t midiData[4] = { 0 };

  1694.         midiData[1] = MIDI_STATUS_NOTE_ON + channel;

  1695.         midiData[2] = note;

  1696.         midiData[3] = velo;

  1697. 

  1698.         osc_send_midi(&kData->osc.data, midiData);

  1699.     }

  1700. 

  1701.     void uiNoteOff(const uint8_t channel, const uint8_t note)

  1702.     {

  1703.         CARLA_ASSERT(channel < MAX_MIDI_CHANNELS);

  1704.         CARLA_ASSERT(note < MAX_MIDI_NOTE);

  1705. 

  1706.         if (channel >= MAX_MIDI_CHANNELS)

  1707.             return;

  1708.         if (note >= MAX_MIDI_NOTE)

  1709.             return;

  1710.         if (kData->osc.data.target == nullptr)

  1711.             return;

  1712. 

  1713.         uint8_t midiData[4] = { 0 };

  1714.         midiData[1] = MIDI_STATUS_NOTE_OFF + channel;

  1715.         midiData[2] = note;

  1716. 

  1717.         osc_send_midi(&kData->osc.data, midiData);

  1718.     }

  1719. 

  1720.     // -------------------------------------------------------------------

  1721.     // Cleanup

  1722. 

  1723.     void clearBuffers()

  1724.     {

  1725.         carla_debug("DssiPlugin::clearBuffers() - start");

  1726. 

  1727.         if (fAudioInBuffers != nullptr)

  1728.         {

  1729.             for (uint32_t i=0; i < kData->audioIn.count; ++i)

  1730.             {

  1731.                 if (fAudioInBuffers[i] != nullptr)

  1732.                 {

  1733.                     delete[] fAudioInBuffers[i];

  1734.                     fAudioInBuffers[i] = nullptr;

  1735.                 }

  1736.             }

  1737. 

  1738.             delete[] fAudioInBuffers;

  1739.             fAudioInBuffers = nullptr;

  1740.         }

  1741. 

  1742.         if (fAudioOutBuffers != nullptr)

  1743.         {

  1744.             for (uint32_t i=0; i < kData->audioOut.count; ++i)

  1745.             {

  1746.                 if (fAudioOutBuffers[i] != nullptr)

  1747.                 {

  1748.                     delete[] fAudioOutBuffers[i];

  1749.                     fAudioOutBuffers[i] = nullptr;

  1750.                 }

  1751.             }

  1752. 

  1753.             delete[] fAudioOutBuffers;

  1754.             fAudioOutBuffers = nullptr;

  1755.         }

  1756. 

  1757.         if (fParamBuffers != nullptr)

  1758.         {

  1759.             delete[] fParamBuffers;

  1760.             fParamBuffers = nullptr;

  1761.         }

  1762. 

  1763.         kData->clearBuffers();

  1764. 

  1765.         carla_debug("DssiPlugin::clearBuffers() - end");

  1766.     }

  1767. 

  1768.     // -------------------------------------------------------------------

  1769. 

  1770.     bool init(const char* const filename, const char* const name, const char* const label, const char* const guiFilename)

  1771.     {

  1772.         CARLA_ASSERT(kData->engine != nullptr);

  1773.         CARLA_ASSERT(kData->client == nullptr);

  1774.         CARLA_ASSERT(filename != nullptr);

  1775.         CARLA_ASSERT(label != nullptr);

  1776. 

  1777.         // ---------------------------------------------------------------

  1778.         // first checks

  1779. 

  1780.         if (kData->engine == nullptr)

  1781.         {

  1782.             return false;

  1783.         }

  1784. 

  1785.         if (kData->client != nullptr)

  1786.         {

  1787.             kData->engine->setLastError("Plugin client is already registered");

  1788.             return false;

  1789.         }

  1790. 

  1791.         if (filename == nullptr)

  1792.         {

  1793.             kData->engine->setLastError("null filename");

  1794.             return false;

  1795.         }

  1796. 

  1797.         if (label == nullptr)

  1798.         {

  1799.             kData->engine->setLastError("null label");

  1800.             return false;

  1801.         }

  1802. 

  1803.         // ---------------------------------------------------------------

  1804.         // open DLL

  1805. 

  1806.         if (! kData->libOpen(filename))

  1807.         {

  1808.             kData->engine->setLastError(kData->libError(filename));

  1809.             return false;

  1810.         }

  1811. 

  1812.         // ---------------------------------------------------------------

  1813.         // get DLL main entry

  1814. 

  1815.         const DSSI_Descriptor_Function descFn = (DSSI_Descriptor_Function)kData->libSymbol("dssi_descriptor");

  1816. 

  1817.         if (descFn == nullptr)

  1818.         {

  1819.             kData->engine->setLastError("Could not find the DSSI Descriptor in the plugin library");

  1820.             return false;

  1821.         }

  1822. 

  1823.         // ---------------------------------------------------------------

  1824.         // get descriptor that matches label

  1825. 

  1826.         unsigned long i = 0;

  1827.         while ((fDssiDescriptor = descFn(i++)) != nullptr)

  1828.         {

  1829.             fDescriptor = fDssiDescriptor->LADSPA_Plugin;

  1830.             if (fDescriptor != nullptr && fDescriptor->Label != nullptr && std::strcmp(fDescriptor->Label, label) == 0)

  1831.                 break;

  1832.         }

  1833. 

  1834.         if (fDescriptor == nullptr || fDssiDescriptor == nullptr)

  1835.         {

  1836.             kData->engine->setLastError("Could not find the requested plugin label in the plugin library");

  1837.             return false;

  1838.         }

  1839. 

  1840.         // ---------------------------------------------------------------

  1841.         // get info

  1842. 

  1843.         if (name != nullptr)

  1844.             fName = kData->engine->getNewUniquePluginName(name);

  1845.         else if (fDescriptor->Name != nullptr)

  1846.             fName = kData->engine->getNewUniquePluginName(fDescriptor->Name);

  1847.         else

  1848.             fName = kData->engine->getNewUniquePluginName(fDescriptor->Label);

  1849. 

  1850.         fFilename = filename;

  1851. 

  1852.         // ---------------------------------------------------------------

  1853.         // register client

  1854. 

  1855.         kData->client = kData->engine->addClient(this);

  1856. 

  1857.         if (kData->client == nullptr || ! kData->client->isOk())

  1858.         {

  1859.             kData->engine->setLastError("Failed to register plugin client");

  1860.             return false;

  1861.         }

  1862. 

  1863.         // ---------------------------------------------------------------

  1864.         // initialize plugin

  1865. 

  1866.         fHandle = fDescriptor->instantiate(fDescriptor, (unsigned long)kData->engine->getSampleRate());

  1867. 

  1868.         if (fHandle == nullptr)

  1869.         {

  1870.             kData->engine->setLastError("Plugin failed to initialize");

  1871.             return false;

  1872.         }

  1873. 

  1874.         // ---------------------------------------------------------------

  1875.         // gui stuff

  1876. 

  1877.         if (guiFilename != nullptr)

  1878.         {

  1879.             kData->osc.thread.setOscData(guiFilename, fDescriptor->Label);

  1880.             fHints |= PLUGIN_HAS_GUI;

  1881.         }

  1882. 

  1883.         // TODO - load settings for options:

  1884.         //fOptions & PLUGIN_OPTION_FORCE_STEREO

  1885. 

  1886.         return true;

  1887.     }

  1888. 

  1889. private:

  1890.     LADSPA_Handle fHandle;

  1891.     LADSPA_Handle fHandle2;

  1892.     const LADSPA_Descriptor* fDescriptor;

  1893.     const DSSI_Descriptor*   fDssiDescriptor;

  1894. 

  1895.     float** fAudioInBuffers;

  1896.     float** fAudioOutBuffers;

  1897.     float*  fParamBuffers;

  1898.     snd_seq_event_t fMidiEvents[MAX_MIDI_EVENTS];

  1899.     QByteArray      fChunk;

  1900. 

  1901.     CARLA_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR(DssiPlugin)

  1902. };

  1903. 

  1904. CARLA_BACKEND_END_NAMESPACE

  1905. 

  1906. #else // WANT_DSSI

  1907. # warning Building without DSSI support

  1908. #endif

  1909. 

  1910. CARLA_BACKEND_START_NAMESPACE

  1911. 

  1912. CarlaPlugin* CarlaPlugin::newDSSI(const Initializer& init, const char* const guiFilename)

  1913. {

  1914.     carla_debug("CarlaPlugin::newDSSI({%p, \"%s\", \"%s\", \"%s\"}, \"%s\")", init.engine, init.filename, init.name, init.label, guiFilename);

  1915. 

  1916. #ifdef WANT_DSSI

  1917.     DssiPlugin* const plugin = new DssiPlugin(init.engine, init.id);

  1918. 

  1919.     if (! plugin->init(init.filename, init.name, init.label, guiFilename))

  1920.     {

  1921.         delete plugin;

  1922.         return nullptr;

  1923.     }

  1924. 

  1925.     plugin->reload();

  1926. 

  1927.     if (init.engine->getProccessMode() == PROCESS_MODE_CONTINUOUS_RACK && ! CarlaPluginProtectedData::canRunInRack(plugin))

  1928.     {

  1929.         init.engine->setLastError("Carla's rack mode can only work with Mono or Stereo DSSI plugins, sorry!");

  1930.         delete plugin;

  1931.         return nullptr;

  1932.     }

  1933. 

  1934.     return plugin;

  1935. #else

  1936.     init.engine->setLastError("DSSI support not available");

  1937.     return nullptr;

  1938. #endif

  1939. }

  1940. 

  1941. CARLA_BACKEND_END_NAMESPACE