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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() override

  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->client != nullptr && kData->client->isActive())

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

  73. 

  74.         if (kData->active)

  75.         {

  76.             deactivate();

  77.             kData->active = false;

  78.         }

  79. 

  80.         if (fDescriptor != nullptr)

  81.         {

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

  83.             {

  84.                 if (fHandle != nullptr)

  85.                     fDescriptor->cleanup(fHandle);

  86.                 if (fHandle2 != nullptr)

  87.                     fDescriptor->cleanup(fHandle2);

  88.             }

  89. 

  90.             fHandle  = nullptr;

  91.             fHandle2 = nullptr;

  92.             fDescriptor = nullptr;

  93.             fDssiDescriptor = nullptr;

  94.         }

  95. 

  96.         clearBuffers();

  97.     }

  98. 

  99.     // -------------------------------------------------------------------

  100.     // Information (base)

  101. 

  102.     PluginType type() const override

  103.     {

  104.         return PLUGIN_DSSI;

  105.     }

  106. 

  107.     PluginCategory category() override

  108.     {

  109.         if (fHints & PLUGIN_IS_SYNTH)

  110.             return PLUGIN_CATEGORY_SYNTH;

  111. 

  112.         return getPluginCategoryFromName(fName);

  113.     }

  114. 

  115.     long uniqueId() const override

  116.     {

  117.         CARLA_ASSERT(fDescriptor != nullptr);

  118. 

  119.         return fDescriptor->UniqueID;

  120.     }

  121. 

  122.     // -------------------------------------------------------------------

  123.     // Information (count)

  124. 

  125.     // nothing

  126. 

  127.     // -------------------------------------------------------------------

  128.     // Information (current data)

  129. 

  130.     int32_t chunkData(void** const dataPtr) override

  131.     {

  132.         CARLA_ASSERT(fOptions & PLUGIN_OPTION_USE_CHUNKS);

  133.         CARLA_ASSERT(fDssiDescriptor != nullptr);

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

  135.         CARLA_ASSERT(fHandle != nullptr);

  136.         CARLA_ASSERT(fHandle2 == nullptr);

  137.         CARLA_ASSERT(dataPtr != nullptr);

  138. 

  139.         unsigned long dataSize = 0;

  140. 

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

  142.             return static_cast<int32_t>(dataSize);

  143. 

  144.         return 0;

  145.     }

  146. 

  147.     // -------------------------------------------------------------------

  148.     // Information (per-plugin data)

  149. 

  150.     unsigned int availableOptions() override

  151.     {

  152.         CARLA_ASSERT(fDssiDescriptor != nullptr);

  153. 

  154.         if (fDssiDescriptor == nullptr)

  155.             return 0x0;

  156. 

  157. #ifdef __USE_GNU

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

  159. #else

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

  161. #endif

  162. 

  163.         unsigned int options = 0x0;

  164. 

  165.         options |= PLUGIN_OPTION_MAP_PROGRAM_CHANGES;

  166. 

  167.         if (isDssiVst)

  168.         {

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

  170.                 options |= PLUGIN_OPTION_USE_CHUNKS;

  171.         }

  172.         else

  173.         {

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

  175.             {

  176.                 if (fOptions & PLUGIN_OPTION_FORCE_STEREO)

  177.                     options |= PLUGIN_OPTION_FORCE_STEREO;

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

  179.                     options |= PLUGIN_OPTION_FORCE_STEREO;

  180.             }

  181. 

  182.             options |= PLUGIN_OPTION_FIXED_BUFFER;

  183.         }

  184. 

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

  186.         {

  187.             options |= PLUGIN_OPTION_SEND_CONTROL_CHANGES;

  188.             options |= PLUGIN_OPTION_SEND_CHANNEL_PRESSURE;

  189.             options |= PLUGIN_OPTION_SEND_NOTE_AFTERTOUCH;

  190.             options |= PLUGIN_OPTION_SEND_PITCHBEND;

  191.             options |= PLUGIN_OPTION_SEND_ALL_SOUND_OFF;

  192.         }

  193. 

  194.         return options;

  195.     }

  196. 

  197.     float getParameterValue(const uint32_t parameterId) override

  198.     {

  199.         CARLA_ASSERT(fParamBuffers != nullptr);

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

  201. 

  202.         return fParamBuffers[parameterId];

  203.     }

  204. 

  205.     void getLabel(char* const strBuf) override

  206.     {

  207.         CARLA_ASSERT(fDescriptor != nullptr);

  208. 

  209.         if (fDescriptor->Label != nullptr)

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

  211.         else

  212.             CarlaPlugin::getLabel(strBuf);

  213.     }

  214. 

  215.     void getMaker(char* const strBuf) override

  216.     {

  217.         CARLA_ASSERT(fDescriptor != nullptr);

  218. 

  219.         if (fDescriptor->Maker != nullptr)

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

  221.         else

  222.             CarlaPlugin::getMaker(strBuf);

  223.     }

  224. 

  225.     void getCopyright(char* const strBuf) override

  226.     {

  227.         CARLA_ASSERT(fDescriptor != nullptr);

  228. 

  229.         if (fDescriptor->Copyright != nullptr)

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

  231.         else

  232.             CarlaPlugin::getCopyright(strBuf);

  233.     }

  234. 

  235.     void getRealName(char* const strBuf) override

  236.     {

  237.         CARLA_ASSERT(fDescriptor != nullptr);

  238. 

  239.         if (fDescriptor->Name != nullptr)

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

  241.         else

  242.             CarlaPlugin::getRealName(strBuf);

  243.     }

  244. 

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

  246.     {

  247.         CARLA_ASSERT(fDescriptor != nullptr);

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

  249. 

  250.         const int32_t rindex(kData->param.data[parameterId].rindex);

  251. 

  252.         if (rindex < static_cast<int32_t>(fDescriptor->PortCount))

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

  254.         else

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

  256.     }

  257. 

  258.     // -------------------------------------------------------------------

  259.     // Set data (state)

  260. 

  261.     // nothing

  262. 

  263.     // -------------------------------------------------------------------

  264.     // Set data (internal stuff)

  265. 

  266.     // nothing

  267. 

  268.     // -------------------------------------------------------------------

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

  270. 

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

  272.     {

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

  274. 

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

  276.         fParamBuffers[parameterId] = fixedValue;

  277. 

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

  279.     }

  280. 

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

  282.     {

  283.         CARLA_ASSERT(fDescriptor != nullptr);

  284.         CARLA_ASSERT(fHandle != nullptr);

  285.         CARLA_ASSERT(type != nullptr);

  286.         CARLA_ASSERT(key != nullptr);

  287.         CARLA_ASSERT(value != nullptr);

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

  289. 

  290.         if (type == nullptr)

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

  292. 

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

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

  295. 

  296.         if (key == nullptr)

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

  298. 

  299.         if (value == nullptr)

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

  301. 

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

  303.         {

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

  305. 

  306.             if (fHandle2)

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

  308.         }

  309. 

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

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

  312. 

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

  314.         {

  315.             const ScopedDisabler sd(this);

  316.             reloadPrograms(false);

  317.         }

  318. 

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

  320.     }

  321. 

  322.     void setChunkData(const char* const stringData) override

  323.     {

  324.         CARLA_ASSERT(fOptions & PLUGIN_OPTION_USE_CHUNKS);

  325.         CARLA_ASSERT(fDssiDescriptor != nullptr);

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

  327.         CARLA_ASSERT(fHandle != nullptr);

  328.         CARLA_ASSERT(fHandle2 == nullptr);

  329.         CARLA_ASSERT(stringData != nullptr);

  330. 

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

  332.             return;

  333. 

  334.         QByteArray chunk(QByteArray::fromBase64(stringData));

  335. 

  336.         CARLA_ASSERT(chunk.size() > 0);

  337. 

  338.         if (chunk.size() > 0)

  339.         {

  340.             const ScopedSingleProcessLocker spl(this, true);

  341.             fDssiDescriptor->set_custom_data(fHandle, chunk.data(), chunk.size());

  342.         }

  343.     }

  344. 

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

  346.     {

  347.         CARLA_ASSERT(fDssiDescriptor != nullptr);

  348.         CARLA_ASSERT(fHandle != nullptr);

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

  350. 

  351.         if (index < -1)

  352.             index = -1;

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

  354.             return;

  355. 

  356.         if (index >= 0 && fDssiDescriptor != nullptr && fDssiDescriptor->select_program != nullptr)

  357.         {

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

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

  360. 

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

  362. 

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

  364. 

  365.             if (fHandle2 != nullptr)

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

  367.         }

  368. 

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

  370.     }

  371. 

  372.     // -------------------------------------------------------------------

  373.     // Set gui stuff

  374. 

  375.     void showGui(const bool yesNo) override

  376.     {

  377.         if (yesNo)

  378.         {

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

  380.         }

  381.         else

  382.         {

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

  384.             {

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

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

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

  388.             }

  389. 

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

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

  392.         }

  393.     }

  394. 

  395.     // -------------------------------------------------------------------

  396.     // Plugin state

  397. 

  398.     void reload() override

  399.     {

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

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

  402.         CARLA_ASSERT(fDescriptor != nullptr);

  403.         CARLA_ASSERT(fDssiDescriptor != nullptr);

  404.         CARLA_ASSERT(fHandle != nullptr);

  405. 

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

  407.             return;

  408.         if (fDescriptor == nullptr)

  409.             return;

  410.         if (fDssiDescriptor == nullptr)

  411.             return;

  412.         if (fHandle == nullptr)

  413.             return;

  414. 

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

  416. 

  417.         // Safely disable plugin for reload

  418.         const ScopedDisabler sd(this);

  419. 

  420.         if (kData->active)

  421.             deactivate();

  422. 

  423.         clearBuffers();

  424. 

  425.         const float sampleRate(static_cast<float>(kData->engine->getSampleRate()));

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

  427. 

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

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

  430. 

  431.         bool forcedStereoIn, forcedStereoOut;

  432.         forcedStereoIn = forcedStereoOut = false;

  433. 

  434.         bool needsCtrlIn, needsCtrlOut;

  435.         needsCtrlIn = needsCtrlOut = false;

  436. 

  437.         if (portCount > 0)

  438.         {

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

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

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

  442. 

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

  444.             {

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

  446. 

  447.                 if (LADSPA_IS_PORT_AUDIO(portType))

  448.                 {

  449.                     if (LADSPA_IS_PORT_INPUT(portType))

  450.                         aIns += 1;

  451.                     else if (LADSPA_IS_PORT_OUTPUT(portType))

  452.                         aOuts += 1;

  453.                 }

  454.                 else if (LADSPA_IS_PORT_CONTROL(portType))

  455.                     params += 1;

  456.             }

  457.         }

  458. 

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

  460.         {

  461.             if (fHandle2 == nullptr)

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

  463. 

  464.             if (aIns == 1)

  465.             {

  466.                 aIns = 2;

  467.                 forcedStereoIn = true;

  468.             }

  469. 

  470.             if (aOuts == 1)

  471.             {

  472.                 aOuts = 2;

  473.                 forcedStereoOut = true;

  474.             }

  475.         }

  476. 

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

  478.         {

  479.             mIns = 1;

  480.             needsCtrlIn = true;

  481.         }

  482. 

  483.         if (aIns > 0)

  484.         {

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

  486.             fAudioInBuffers = new float*[aIns];

  487. 

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

  489.                 fAudioInBuffers[i] = nullptr;

  490.         }

  491. 

  492.         if (aOuts > 0)

  493.         {

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

  495.             fAudioOutBuffers = new float*[aOuts];

  496.             needsCtrlIn = true;

  497. 

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

  499.                 fAudioOutBuffers[i] = nullptr;

  500.         }

  501. 

  502.         if (params > 0)

  503.         {

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

  505.             fParamBuffers = new float[params];

  506. 

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

  508.                 fParamBuffers[i] = 0.0f;

  509.         }

  510. 

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

  512.         CarlaString portName;

  513. 

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

  515.         {

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

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

  518. 

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

  520. 

  521.             if (LADSPA_IS_PORT_AUDIO(portType))

  522.             {

  523.                 portName.clear();

  524. 

  525.                 if (processMode == PROCESS_MODE_SINGLE_CLIENT)

  526.                 {

  527.                     portName  = fName;

  528.                     portName += ":";

  529.                 }

  530. 

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

  532.                 portName.truncate(portNameSize);

  533. 

  534.                 if (LADSPA_IS_PORT_INPUT(portType))

  535.                 {

  536.                     j = iAudioIn++;

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

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

  539. 

  540.                     if (forcedStereoIn)

  541.                     {

  542.                         portName += "_2";

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

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

  545.                     }

  546.                 }

  547.                 else if (LADSPA_IS_PORT_OUTPUT(portType))

  548.                 {

  549.                     j = iAudioOut++;

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

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

  552. 

  553.                     if (forcedStereoOut)

  554.                     {

  555.                         portName += "_2";

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

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

  558.                     }

  559.                 }

  560.                 else

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

  562.             }

  563.             else if (LADSPA_IS_PORT_CONTROL(portType))

  564.             {

  565.                 j = iCtrl++;

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

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

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

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

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

  571. 

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

  573. 

  574.                 // min value

  575.                 if (LADSPA_IS_HINT_BOUNDED_BELOW(portRangeHints.HintDescriptor))

  576.                     min = portRangeHints.LowerBound;

  577.                 else

  578.                     min = 0.0f;

  579. 

  580.                 // max value

  581.                 if (LADSPA_IS_HINT_BOUNDED_ABOVE(portRangeHints.HintDescriptor))

  582.                     max = portRangeHints.UpperBound;

  583.                 else

  584.                     max = 1.0f;

  585. 

  586.                 if (min > max)

  587.                     max = min;

  588.                 else if (max < min)

  589.                     min = max;

  590. 

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

  592.                 {

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

  594.                     max = min + 0.1f;

  595.                 }

  596. 

  597.                 // default value

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

  599. 

  600.                 if (def < min)

  601.                     def = min;

  602.                 else if (def > max)

  603.                     def = max;

  604. 

  605.                 if (LADSPA_IS_HINT_SAMPLE_RATE(portRangeHints.HintDescriptor))

  606.                 {

  607.                     min *= sampleRate;

  608.                     max *= sampleRate;

  609.                     def *= sampleRate;

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

  611.                 }

  612. 

  613.                 if (LADSPA_IS_HINT_TOGGLED(portRangeHints.HintDescriptor))

  614.                 {

  615.                     step = max - min;

  616.                     stepSmall = step;

  617.                     stepLarge = step;

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

  619.                 }

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

  621.                 {

  622.                     step = 1.0f;

  623.                     stepSmall = 1.0f;

  624.                     stepLarge = 10.0f;

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

  626.                 }

  627.                 else

  628.                 {

  629.                     float range = max - min;

  630.                     step = range/100.0f;

  631.                     stepSmall = range/1000.0f;

  632.                     stepLarge = range/10.0f;

  633.                 }

  634. 

  635.                 if (LADSPA_IS_PORT_INPUT(portType))

  636.                 {

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

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

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

  640.                     needsCtrlIn = true;

  641. 

  642.                     // MIDI CC value

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

  644.                     {

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

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

  647.                         {

  648.                             int16_t cc = DSSI_CC_NUMBER(controller);

  649.                             if (! MIDI_IS_CONTROL_BANK_SELECT(cc))

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

  651.                         }

  652.                     }

  653.                 }

  654.                 else if (LADSPA_IS_PORT_OUTPUT(portType))

  655.                 {

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

  657.                     {

  658.                         min = 0.0f;

  659.                         max = sampleRate;

  660.                         def = 0.0f;

  661.                         step = 1.0f;

  662.                         stepSmall = 1.0f;

  663.                         stepLarge = 1.0f;

  664. 

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

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

  667.                     }

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

  669.                     {

  670.                         def = sampleRate;

  671.                         step = 1.0f;

  672.                         stepSmall = 1.0f;

  673.                         stepLarge = 1.0f;

  674. 

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

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

  677.                     }

  678.                     else

  679.                     {

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

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

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

  683.                         needsCtrlOut = true;

  684.                     }

  685.                 }

  686.                 else

  687.                 {

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

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

  690.                 }

  691. 

  692.                 // extra parameter hints

  693.                 if (LADSPA_IS_HINT_LOGARITHMIC(portRangeHints.HintDescriptor))

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

  695. 

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

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

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

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

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

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

  702. 

  703.                 // Start parameters in their default values

  704.                 fParamBuffers[j] = def;

  705. 

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

  707. 

  708.                 if (fHandle2 != nullptr)

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

  710.             }

  711.             else

  712.             {

  713.                 // Not Audio or Control

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

  715. 

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

  717. 

  718.                 if (fHandle2 != nullptr)

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

  720.             }

  721.         }

  722. 

  723.         if (needsCtrlIn)

  724.         {

  725.             portName.clear();

  726. 

  727.             if (processMode == PROCESS_MODE_SINGLE_CLIENT)

  728.             {

  729.                 portName  = fName;

  730.                 portName += ":";

  731.             }

  732. 

  733.             portName += "events-in";

  734.             portName.truncate(portNameSize);

  735. 

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

  737.         }

  738. 

  739.         if (needsCtrlOut)

  740.         {

  741.             portName.clear();

  742. 

  743.             if (processMode == PROCESS_MODE_SINGLE_CLIENT)

  744.             {

  745.                 portName  = fName;

  746.                 portName += ":";

  747.             }

  748. 

  749.             portName += "events-out";

  750.             portName.truncate(portNameSize);

  751. 

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

  753.         }

  754. 

  755.         if (forcedStereoIn || forcedStereoOut)

  756.             fOptions |= PLUGIN_OPTION_FORCE_STEREO;

  757.         else

  758.             fOptions &= ~PLUGIN_OPTION_FORCE_STEREO;

  759. 

  760.         // plugin hints

  761.         fHints = 0x0;

  762. 

  763.         if (LADSPA_IS_HARD_RT_CAPABLE(fDescriptor->Properties))

  764.             fHints |= PLUGIN_IS_RTSAFE;

  765. 

  766.         if (fGuiFilename.isNotEmpty())

  767.             fHints |= PLUGIN_HAS_GUI;

  768. 

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

  770.             fHints |= PLUGIN_IS_SYNTH;

  771. 

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

  773.             fHints |= PLUGIN_CAN_DRYWET;

  774. 

  775.         if (aOuts > 0)

  776.             fHints |= PLUGIN_CAN_VOLUME;

  777. 

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

  779.             fHints |= PLUGIN_CAN_BALANCE;

  780. 

  781.         // extra plugin hints

  782.         kData->extraHints = 0x0;

  783. 

  784.         if (mIns > 0)

  785.             kData->extraHints |= PLUGIN_HINT_HAS_MIDI_IN;

  786. 

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

  788.             kData->extraHints |= PLUGIN_HINT_CAN_RUN_RACK;

  789. 

  790.         // check latency

  791.         if (fHints & PLUGIN_CAN_DRYWET)

  792.         {

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

  794.             {

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

  796.                     continue;

  797. 

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

  799. 

  800.                 float tmpIn[aIns][2];

  801.                 float tmpOut[aOuts][2];

  802. 

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

  804.                 {

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

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

  807. 

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

  809.                 }

  810. 

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

  812.                 {

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

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

  815. 

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

  817.                 }

  818. 

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

  820.                     fDescriptor->activate(fHandle);

  821. 

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

  823. 

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

  825.                     fDescriptor->deactivate(fHandle);

  826. 

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

  828. 

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

  830.                 {

  831.                     kData->latency = latency;

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

  833.                     kData->recreateLatencyBuffers();

  834.                 }

  835. 

  836.                 break;

  837.             }

  838.         }

  839. 

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

  841.         reloadPrograms(true);

  842. 

  843.         if (kData->active)

  844.             activate();

  845. 

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

  847.     }

  848. 

  849.     void reloadPrograms(const bool init) override

  850.     {

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

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

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

  854. 

  855.         // Delete old programs

  856.         kData->midiprog.clear();

  857. 

  858.         // Query new programs

  859.         uint32_t count = 0;

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

  861.         {

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

  863.                 count++;

  864.         }

  865. 

  866.         if (count > 0)

  867.         {

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

  869. 

  870.             // Update data

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

  872.             {

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

  874.                 CARLA_ASSERT(pdesc != nullptr);

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

  876. 

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

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

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

  880.             }

  881.         }

  882. 

  883. #ifndef BUILD_BRIDGE

  884.         // Update OSC Names

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

  886.         {

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

  888. 

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

  890.                 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);

  891.         }

  892. #endif

  893. 

  894.         if (init)

  895.         {

  896.             if (count > 0)

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

  898.         }

  899.         else

  900.         {

  901.             // Check if current program is invalid

  902.             bool programChanged = false;

  903. 

  904.             if (count == oldCount+1)

  905.             {

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

  907.                 kData->midiprog.current = oldCount;

  908.                 programChanged = true;

  909.             }

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

  911.             {

  912.                 // programs exist now, but not before

  913.                 kData->midiprog.current = 0;

  914.                 programChanged = true;

  915.             }

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

  917.             {

  918.                 // programs existed before, but not anymore

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

  920.                 programChanged = true;

  921.             }

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

  923.             {

  924.                 // current midi program > count

  925.                 kData->midiprog.current = 0;

  926.                 programChanged = true;

  927.             }

  928.             else

  929.             {

  930.                 // no change

  931.                 kData->midiprog.current = current;

  932.             }

  933. 

  934.             if (programChanged)

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

  936. 

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

  938.         }

  939.     }

  940. 

  941.     // -------------------------------------------------------------------

  942.     // Plugin processing

  943. 

  944.     void activate() override

  945.     {

  946.         CARLA_ASSERT(fDescriptor != nullptr);

  947.         CARLA_ASSERT(fHandle != nullptr);

  948. 

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

  950.         {

  951.             fDescriptor->activate(fHandle);

  952. 

  953.             if (fHandle2 != nullptr)

  954.                 fDescriptor->activate(fHandle2);

  955.         }

  956.     }

  957. 

  958.     void deactivate() override

  959.     {

  960.         CARLA_ASSERT(fDescriptor != nullptr);

  961.         CARLA_ASSERT(fHandle != 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) override

  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 needs reset

  992. 

  993.         if (kData->needsReset)

  994.         {

  995.             if (fOptions & PLUGIN_OPTION_SEND_ALL_SOUND_OFF)

  996.             {

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

  998.                 {

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

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

  1001. 

  1002.                     fMidiEvents[j].type = SND_SEQ_EVENT_CONTROLLER;

  1003.                     fMidiEvents[j].data.control.channel = j;

  1004.                     fMidiEvents[j].data.control.param   = MIDI_CONTROL_ALL_NOTES_OFF;

  1005. 

  1006.                     fMidiEvents[j+l].type = SND_SEQ_EVENT_CONTROLLER;

  1007.                     fMidiEvents[j+l].data.control.channel = j;

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

  1009.                 }

  1010. 

  1011.                 midiEventCount = MAX_MIDI_CHANNELS*2;

  1012.             }

  1013.             else if (kData->ctrlChannel >= 0 && kData->ctrlChannel < MAX_MIDI_CHANNELS)

  1014.             {

  1015.                 for (unsigned char j=0; j < MAX_MIDI_NOTE; ++j)

  1016.                 {

  1017.                     carla_zeroStruct<snd_seq_event_t>(fMidiEvents[j]);

  1018. 

  1019.                     fMidiEvents[j].type = SND_SEQ_EVENT_NOTEOFF;

  1020.                     fMidiEvents[j].data.note.channel = kData->ctrlChannel;

  1021.                     fMidiEvents[j].data.note.note    = j;

  1022.                 }

  1023. 

  1024.                 midiEventCount = MAX_MIDI_NOTE;

  1025.             }

  1026. 

  1027.             if (kData->latency > 0)

  1028.             {

  1029.                 for (i=0; i < kData->audioIn.count; ++i)

  1030.                     carla_zeroFloat(kData->latencyBuffers[i], kData->latency);

  1031.             }

  1032. 

  1033.             kData->needsReset = false;

  1034.         }

  1035. 

  1036.         // --------------------------------------------------------------------------------------------------------

  1037.         // Event Input and Processing

  1038. 

  1039.         if (kData->event.portIn != nullptr)

  1040.         {

  1041.             // ----------------------------------------------------------------------------------------------------

  1042.             // MIDI Input (External)

  1043. 

  1044.             if (kData->extNotes.mutex.tryLock())

  1045.             {

  1046.                 while (midiEventCount < MAX_MIDI_EVENTS && ! kData->extNotes.data.isEmpty())

  1047.                 {

  1048.                     const ExternalMidiNote& note(kData->extNotes.data.getFirst(true));

  1049. 

  1050.                     CARLA_ASSERT(note.channel >= 0 && note.channel < MAX_MIDI_CHANNELS);

  1051. 

  1052.                     fMidiEvents[midiEventCount].type               = (note.velo > 0) ? SND_SEQ_EVENT_NOTEON : SND_SEQ_EVENT_NOTEOFF;

  1053.                     fMidiEvents[midiEventCount].data.note.channel  = note.channel;

  1054.                     fMidiEvents[midiEventCount].data.note.note     = note.note;

  1055.                     fMidiEvents[midiEventCount].data.note.velocity = note.velo;

  1056. 

  1057.                     midiEventCount += 1;

  1058.                 }

  1059. 

  1060.                 kData->extNotes.mutex.unlock();

  1061. 

  1062.             } // End of MIDI Input (External)

  1063. 

  1064.             // ----------------------------------------------------------------------------------------------------

  1065.             // Event Input (System)

  1066. 

  1067.             bool allNotesOffSent = false;

  1068.             bool sampleAccurate  = (fOptions & PLUGIN_OPTION_FIXED_BUFFER) == 0;

  1069. 

  1070.             uint32_t time, nEvents = kData->event.portIn->getEventCount();

  1071.             uint32_t startTime  = 0;

  1072.             uint32_t timeOffset = 0;

  1073.             uint32_t nextBankId = 0;

  1074. 

  1075.             if (kData->midiprog.current >= 0 && kData->midiprog.count > 0)

  1076.                 nextBankId = kData->midiprog.data[kData->midiprog.current].bank;

  1077. 

  1078.             for (i=0; i < nEvents; ++i)

  1079.             {

  1080.                 const EngineEvent& event(kData->event.portIn->getEvent(i));

  1081. 

  1082.                 time = event.time;

  1083. 

  1084.                 if (time >= frames)

  1085.                     continue;

  1086. 

  1087.                 CARLA_ASSERT_INT2(time >= timeOffset, time, timeOffset);

  1088. 

  1089.                 if (time > timeOffset && sampleAccurate)

  1090.                 {

  1091.                     if (processSingle(inBuffer, outBuffer, time - timeOffset, timeOffset, midiEventCount))

  1092.                     {

  1093.                         startTime  = 0;

  1094.                         timeOffset = time;

  1095.                         midiEventCount = 0;

  1096. 

  1097.                         if (kData->midiprog.current >= 0 && kData->midiprog.count > 0)

  1098.                             nextBankId = kData->midiprog.data[kData->midiprog.current].bank;

  1099.                         else

  1100.                             nextBankId = 0;

  1101.                     }

  1102.                     else

  1103.                         startTime += timeOffset;

  1104.                 }

  1105. 

  1106.                 // Control change

  1107.                 switch (event.type)

  1108.                 {

  1109.                 case kEngineEventTypeNull:

  1110.                     break;

  1111. 

  1112.                 case kEngineEventTypeControl:

  1113.                 {

  1114.                     const EngineControlEvent& ctrlEvent = event.ctrl;

  1115. 

  1116.                     switch (ctrlEvent.type)

  1117.                     {

  1118.                     case kEngineControlEventTypeNull:

  1119.                         break;

  1120. 

  1121.                     case kEngineControlEventTypeParameter:

  1122.                     {

  1123. #ifndef BUILD_BRIDGE

  1124.                         // Control backend stuff

  1125.                         if (event.channel == kData->ctrlChannel)

  1126.                         {

  1127.                             float value;

  1128. 

  1129.                             if (MIDI_IS_CONTROL_BREATH_CONTROLLER(ctrlEvent.param) && (fHints & PLUGIN_CAN_DRYWET) > 0)

  1130.                             {

  1131.                                 value = ctrlEvent.value;

  1132.                                 setDryWet(value, false, false);

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

  1134.                             }

  1135. 

  1136.                             if (MIDI_IS_CONTROL_CHANNEL_VOLUME(ctrlEvent.param) && (fHints & PLUGIN_CAN_VOLUME) > 0)

  1137.                             {

  1138.                                 value = ctrlEvent.value*127.0f/100.0f;

  1139.                                 setVolume(value, false, false);

  1140.                                 postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_VOLUME, 0, value);

  1141.                             }

  1142. 

  1143.                             if (MIDI_IS_CONTROL_BALANCE(ctrlEvent.param) && (fHints & PLUGIN_CAN_BALANCE) > 0)

  1144.                             {

  1145.                                 float left, right;

  1146.                                 value = ctrlEvent.value/0.5f - 1.0f;

  1147. 

  1148.                                 if (value < 0.0f)

  1149.                                 {

  1150.                                     left  = -1.0f;

  1151.                                     right = (value*2.0f)+1.0f;

  1152.                                 }

  1153.                                 else if (value > 0.0f)

  1154.                                 {

  1155.                                     left  = (value*2.0f)-1.0f;

  1156.                                     right = 1.0f;

  1157.                                 }

  1158.                                 else

  1159.                                 {

  1160.                                     left  = -1.0f;

  1161.                                     right = 1.0f;

  1162.                                 }

  1163. 

  1164.                                 setBalanceLeft(left, false, false);

  1165.                                 setBalanceRight(right, false, false);

  1166.                                 postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_BALANCE_LEFT, 0, left);

  1167.                                 postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_BALANCE_RIGHT, 0, right);

  1168.                             }

  1169.                         }

  1170. #endif

  1171. 

  1172.                         // Control plugin parameters

  1173.                         for (k=0; k < kData->param.count; ++k)

  1174.                         {

  1175.                             if (kData->param.data[k].midiChannel != event.channel)

  1176.                                 continue;

  1177.                             if (kData->param.data[k].midiCC != ctrlEvent.param)

  1178.                                 continue;

  1179.                             if (kData->param.data[k].type != PARAMETER_INPUT)

  1180.                                 continue;

  1181.                             if ((kData->param.data[k].hints & PARAMETER_IS_AUTOMABLE) == 0)

  1182.                                 continue;

  1183. 

  1184.                             float value;

  1185. 

  1186.                             if (kData->param.data[k].hints & PARAMETER_IS_BOOLEAN)

  1187.                             {

  1188.                                 value = (ctrlEvent.value < 0.5f) ? kData->param.ranges[k].min : kData->param.ranges[k].max;

  1189.                             }

  1190.                             else

  1191.                             {

  1192.                                 value = kData->param.ranges[i].unnormalizeValue(ctrlEvent.value);

  1193. 

  1194.                                 if (kData->param.data[k].hints & PARAMETER_IS_INTEGER)

  1195.                                     value = std::rint(value);

  1196.                             }

  1197. 

  1198.                             setParameterValue(k, value, false, false, false);

  1199.                             postponeRtEvent(kPluginPostRtEventParameterChange, static_cast<int32_t>(k), 0, value);

  1200.                         }

  1201. 

  1202.                         if ((fOptions & PLUGIN_OPTION_SEND_CONTROL_CHANGES) != 0 && ctrlEvent.param <= 0x5F)

  1203.                         {

  1204.                             if (midiEventCount >= MAX_MIDI_EVENTS)

  1205.                                 continue;

  1206. 

  1207.                             carla_zeroStruct<snd_seq_event_t>(fMidiEvents[midiEventCount]);

  1208. 

  1209.                             fMidiEvents[midiEventCount].time.tick = sampleAccurate ? startTime : time;

  1210. 

  1211.                             fMidiEvents[midiEventCount].type = SND_SEQ_EVENT_CONTROLLER;

  1212.                             fMidiEvents[midiEventCount].data.control.channel = event.channel;

  1213.                             fMidiEvents[midiEventCount].data.control.param   = ctrlEvent.param;

  1214.                             fMidiEvents[midiEventCount].data.control.value   = ctrlEvent.value*127.0f;

  1215. 

  1216.                             midiEventCount += 1;

  1217.                         }

  1218. 

  1219.                         break;

  1220.                     }

  1221. 

  1222.                     case kEngineControlEventTypeMidiBank:

  1223.                         if (event.channel == kData->ctrlChannel && (fOptions & PLUGIN_OPTION_MAP_PROGRAM_CHANGES) != 0)

  1224.                             nextBankId = ctrlEvent.param;

  1225.                         break;

  1226. 

  1227.                     case kEngineControlEventTypeMidiProgram:

  1228.                         if (event.channel == kData->ctrlChannel && (fOptions & PLUGIN_OPTION_MAP_PROGRAM_CHANGES) != 0)

  1229.                         {

  1230.                             const uint32_t nextProgramId = ctrlEvent.param;

  1231. 

  1232.                             for (k=0; k < kData->midiprog.count; ++k)

  1233.                             {

  1234.                                 if (kData->midiprog.data[k].bank == nextBankId && kData->midiprog.data[k].program == nextProgramId)

  1235.                                 {

  1236.                                     setMidiProgram(k, false, false, false);

  1237.                                     postponeRtEvent(kPluginPostRtEventMidiProgramChange, k, 0, 0.0f);

  1238.                                     break;

  1239.                                 }

  1240.                             }

  1241.                         }

  1242.                         break;

  1243. 

  1244.                     case kEngineControlEventTypeAllSoundOff:

  1245.                         if (fOptions & PLUGIN_OPTION_SEND_ALL_SOUND_OFF)

  1246.                         {

  1247.                             if (midiEventCount >= MAX_MIDI_EVENTS)

  1248.                                 continue;

  1249. 

  1250.                             carla_zeroStruct<snd_seq_event_t>(fMidiEvents[midiEventCount]);

  1251. 

  1252.                             fMidiEvents[midiEventCount].time.tick = sampleAccurate ? startTime : time;

  1253. 

  1254.                             fMidiEvents[midiEventCount].type = SND_SEQ_EVENT_CONTROLLER;

  1255.                             fMidiEvents[midiEventCount].data.control.channel = event.channel;

  1256.                             fMidiEvents[midiEventCount].data.control.param   = MIDI_CONTROL_ALL_SOUND_OFF;

  1257. 

  1258.                             midiEventCount += 1;

  1259.                         }

  1260.                         break;

  1261. 

  1262.                     case kEngineControlEventTypeAllNotesOff:

  1263.                         if (fOptions & PLUGIN_OPTION_SEND_ALL_SOUND_OFF)

  1264.                         {

  1265.                             if (event.channel == kData->ctrlChannel && ! allNotesOffSent)

  1266.                             {

  1267.                                 allNotesOffSent = true;

  1268.                                 sendMidiAllNotesOffToCallback();

  1269.                             }

  1270. 

  1271.                             if (midiEventCount >= MAX_MIDI_EVENTS)

  1272.                                 continue;

  1273. 

  1274.                             carla_zeroStruct<snd_seq_event_t>(fMidiEvents[midiEventCount]);

  1275. 

  1276.                             fMidiEvents[midiEventCount].time.tick = sampleAccurate ? startTime : time;

  1277. 

  1278.                             fMidiEvents[midiEventCount].type = SND_SEQ_EVENT_CONTROLLER;

  1279.                             fMidiEvents[midiEventCount].data.control.channel = event.channel;

  1280.                             fMidiEvents[midiEventCount].data.control.param   = MIDI_CONTROL_ALL_NOTES_OFF;

  1281. 

  1282.                             midiEventCount += 1;

  1283.                         }

  1284.                         break;

  1285.                     }

  1286. 

  1287.                     break;

  1288.                 }

  1289. 

  1290.                 case kEngineEventTypeMidi:

  1291.                 {

  1292.                     if (midiEventCount >= MAX_MIDI_EVENTS)

  1293.                         continue;

  1294. 

  1295.                     const EngineMidiEvent& midiEvent(event.midi);

  1296. 

  1297.                     uint8_t status  = MIDI_GET_STATUS_FROM_DATA(midiEvent.data);

  1298.                     uint8_t channel = event.channel;

  1299. 

  1300.                     // Fix bad note-off (per DSSI spec)

  1301.                     if (MIDI_IS_STATUS_NOTE_ON(status) && midiEvent.data[2] == 0)

  1302.                         status -= 0x10;

  1303. 

  1304.                     carla_zeroStruct<snd_seq_event_t>(fMidiEvents[midiEventCount]);

  1305. 

  1306.                     fMidiEvents[midiEventCount].time.tick = sampleAccurate ? startTime : time;

  1307. 

  1308.                     if (MIDI_IS_STATUS_NOTE_OFF(status))

  1309.                     {

  1310.                         const uint8_t note = midiEvent.data[1];

  1311. 

  1312.                         fMidiEvents[midiEventCount].type = SND_SEQ_EVENT_NOTEOFF;

  1313.                         fMidiEvents[midiEventCount].data.note.channel = channel;

  1314.                         fMidiEvents[midiEventCount].data.note.note    = note;

  1315. 

  1316.                         postponeRtEvent(kPluginPostRtEventNoteOff, channel, note, 0.0f);

  1317.                     }

  1318.                     else if (MIDI_IS_STATUS_NOTE_ON(status))

  1319.                     {

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

  1321.                         const uint8_t velo = midiEvent.data[2];

  1322. 

  1323.                         fMidiEvents[midiEventCount].type = SND_SEQ_EVENT_NOTEON;

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

  1325.                         fMidiEvents[midiEventCount].data.note.note     = note;

  1326.                         fMidiEvents[midiEventCount].data.note.velocity = velo;

  1327. 

  1328.                         postponeRtEvent(kPluginPostRtEventNoteOn, channel, note, velo);

  1329.                     }

  1330.                     else if (MIDI_IS_STATUS_POLYPHONIC_AFTERTOUCH(status) && (fOptions & PLUGIN_OPTION_SEND_NOTE_AFTERTOUCH) != 0)

  1331.                     {

  1332.                         const uint8_t note     = midiEvent.data[1];

  1333.                         const uint8_t pressure = midiEvent.data[2];

  1334. 

  1335.                         fMidiEvents[midiEventCount].type = SND_SEQ_EVENT_KEYPRESS;

  1336.                         fMidiEvents[midiEventCount].data.note.channel  = channel;

  1337.                         fMidiEvents[midiEventCount].data.note.note     = note;

  1338.                         fMidiEvents[midiEventCount].data.note.velocity = pressure;

  1339.                     }

  1340.                     else if (MIDI_IS_STATUS_CONTROL_CHANGE(status) && (fOptions & PLUGIN_OPTION_SEND_CONTROL_CHANGES) != 0)

  1341.                     {

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

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

  1344. 

  1345.                         fMidiEvents[midiEventCount].type = SND_SEQ_EVENT_CONTROLLER;

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

  1347.                         fMidiEvents[midiEventCount].data.control.param   = control;

  1348.                         fMidiEvents[midiEventCount].data.control.value   = value;

  1349.                     }

  1350.                     else if (MIDI_IS_STATUS_AFTERTOUCH(status) && (fOptions & PLUGIN_OPTION_SEND_CHANNEL_PRESSURE) != 0)

  1351.                     {

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

  1353. 

  1354.                         fMidiEvents[midiEventCount].type = SND_SEQ_EVENT_CHANPRESS;

  1355.                         fMidiEvents[midiEventCount].data.control.channel = channel;

  1356.                         fMidiEvents[midiEventCount].data.control.value   = pressure;

  1357.                     }

  1358.                     else if (MIDI_IS_STATUS_PITCH_WHEEL_CONTROL(status) && (fOptions & PLUGIN_OPTION_SEND_PITCHBEND) != 0)

  1359.                     {

  1360.                         const uint8_t lsb = midiEvent.data[1];

  1361.                         const uint8_t msb = midiEvent.data[2];

  1362. 

  1363.                         fMidiEvents[midiEventCount].type = SND_SEQ_EVENT_PITCHBEND;

  1364.                         fMidiEvents[midiEventCount].data.control.channel = channel;

  1365.                         fMidiEvents[midiEventCount].data.control.value   = ((msb << 7) | lsb) - 8192;

  1366.                     }

  1367.                     else

  1368.                         continue;

  1369. 

  1370.                     midiEventCount += 1;

  1371. 

  1372.                     break;

  1373.                 }

  1374.                 }

  1375.             }

  1376. 

  1377.             kData->postRtEvents.trySplice();

  1378. 

  1379.             if (frames > timeOffset)

  1380.                 processSingle(inBuffer, outBuffer, frames - timeOffset, timeOffset, midiEventCount);

  1381. 

  1382.         } // End of Event Input and Processing

  1383. 

  1384.         // --------------------------------------------------------------------------------------------------------

  1385.         // Plugin processing (no events)

  1386. 

  1387.         else

  1388.         {

  1389.             processSingle(inBuffer, outBuffer, frames, 0, midiEventCount);

  1390. 

  1391.         } // End of Plugin processing (no events)

  1392. 

  1393.         CARLA_PROCESS_CONTINUE_CHECK;

  1394. 

  1395.         // --------------------------------------------------------------------------------------------------------

  1396.         // Control Output

  1397. 

  1398.         if (kData->event.portOut != nullptr)

  1399.         {

  1400.             uint8_t  channel;

  1401.             uint16_t param;

  1402.             float    value;

  1403. 

  1404.             for (k=0; k < kData->param.count; ++k)

  1405.             {

  1406.                 if (kData->param.data[k].type != PARAMETER_OUTPUT)

  1407.                     continue;

  1408. 

  1409.                 kData->param.ranges[k].fixValue(fParamBuffers[k]);

  1410. 

  1411.                 if (kData->param.data[k].midiCC > 0)

  1412.                 {

  1413.                     channel = kData->param.data[k].midiChannel;

  1414.                     param   = static_cast<uint16_t>(kData->param.data[k].midiCC);

  1415.                     value   = kData->param.ranges[k].normalizeValue(fParamBuffers[k]);

  1416.                     kData->event.portOut->writeControlEvent(0, channel, kEngineControlEventTypeParameter, param, value);

  1417.                 }

  1418.             }

  1419. 

  1420.         } // End of Control Output

  1421.     }

  1422. 

  1423.     bool processSingle(float** const inBuffer, float** const outBuffer, const uint32_t frames, const uint32_t timeOffset, const unsigned long midiEventCount)

  1424.     {

  1425.         CARLA_ASSERT(frames > 0);

  1426. 

  1427.         if (frames == 0)

  1428.             return false;

  1429. 

  1430.         if (kData->audioIn.count > 0)

  1431.         {

  1432.             CARLA_ASSERT(inBuffer != nullptr);

  1433.             if (inBuffer == nullptr)

  1434.                 return false;

  1435.         }

  1436.         if (kData->audioOut.count > 0)

  1437.         {

  1438.             CARLA_ASSERT(outBuffer != nullptr);

  1439.             if (outBuffer == nullptr)

  1440.                 return false;

  1441.         }

  1442. 

  1443.         uint32_t i, k;

  1444. 

  1445.         // --------------------------------------------------------------------------------------------------------

  1446.         // Try lock, silence otherwise

  1447. 

  1448.         if (kData->engine->isOffline())

  1449.         {

  1450.             kData->singleMutex.lock();

  1451.         }

  1452.         else if (! kData->singleMutex.tryLock())

  1453.         {

  1454.             for (i=0; i < kData->audioOut.count; ++i)

  1455.             {

  1456.                 for (k=0; k < frames; ++k)

  1457.                     outBuffer[i][k+timeOffset] = 0.0f;

  1458.             }

  1459. 

  1460.             return false;

  1461.         }

  1462. 

  1463.         // --------------------------------------------------------------------------------------------------------

  1464.         // Reset audio buffers

  1465. 

  1466.         for (i=0; i < kData->audioIn.count; ++i)

  1467.             carla_copyFloat(fAudioInBuffers[i], inBuffer[i]+timeOffset, frames);

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

  1469.             carla_zeroFloat(fAudioOutBuffers[i], frames);

  1470. 

  1471.         // --------------------------------------------------------------------------------------------------------

  1472.         // Run plugin

  1473. 

  1474.         if (fDssiDescriptor->run_synth != nullptr)

  1475.         {

  1476.             fDssiDescriptor->run_synth(fHandle, frames, fMidiEvents, midiEventCount);

  1477. 

  1478.             if (fHandle2 != nullptr)

  1479.                 fDssiDescriptor->run_synth(fHandle2, frames, fMidiEvents, midiEventCount);

  1480.         }

  1481.         else if (fDssiDescriptor->run_multiple_synths != nullptr)

  1482.         {

  1483.             unsigned long instances = (fHandle2 != nullptr) ? 2 : 1;

  1484.             LADSPA_Handle handlePtr[2] = { fHandle, fHandle2 };

  1485.             snd_seq_event_t* midiEventsPtr[2] = { fMidiEvents, fMidiEvents };

  1486.             unsigned long midiEventCountPtr[2] = { midiEventCount, midiEventCount };

  1487.             fDssiDescriptor->run_multiple_synths(instances, handlePtr, frames, midiEventsPtr, midiEventCountPtr);

  1488.         }

  1489.         else

  1490.         {

  1491.             fDescriptor->run(fHandle, frames);

  1492. 

  1493.             if (fHandle2 != nullptr)

  1494.                 fDescriptor->run(fHandle2, frames);

  1495.         }

  1496. 

  1497. #ifndef BUILD_BRIDGE

  1498.         // --------------------------------------------------------------------------------------------------------

  1499.         // Post-processing (dry/wet, volume and balance)

  1500. 

  1501.         {

  1502.             const bool doDryWet  = (fHints & PLUGIN_CAN_DRYWET) != 0 && kData->postProc.dryWet != 1.0f;

  1503.             const bool doBalance = (fHints & PLUGIN_CAN_BALANCE) != 0 && (kData->postProc.balanceLeft != -1.0f || kData->postProc.balanceRight != 1.0f);

  1504. 

  1505.             bool isPair;

  1506.             float bufValue, oldBufLeft[doBalance ? frames : 1];

  1507. 

  1508.             for (i=0; i < kData->audioOut.count; ++i)

  1509.             {

  1510.                 // Dry/Wet

  1511.                 if (doDryWet)

  1512.                 {

  1513.                     for (k=0; k < frames; ++k)

  1514.                     {

  1515.                         // TODO

  1516.                         //if (k < kData->latency && kData->latency < frames)

  1517.                         //    bufValue = (kData->audioIn.count == 1) ? kData->latencyBuffers[0][k] : kData->latencyBuffers[i][k];

  1518.                         //else

  1519.                         //    bufValue = (kData->audioIn.count == 1) ? inBuffer[0][k-m_latency] : inBuffer[i][k-m_latency];

  1520. 

  1521.                         bufValue = fAudioInBuffers[(kData->audioIn.count == 1) ? 0 : i][k];

  1522.                         fAudioOutBuffers[i][k] = (fAudioOutBuffers[i][k] * kData->postProc.dryWet) + (bufValue * (1.0f - kData->postProc.dryWet));

  1523.                     }

  1524.                 }

  1525. 

  1526.                 // Balance

  1527.                 if (doBalance)

  1528.                 {

  1529.                     isPair = (i % 2 == 0);

  1530. 

  1531.                     if (isPair)

  1532.                     {

  1533.                         CARLA_ASSERT(i+1 < kData->audioOut.count);

  1534.                         carla_copyFloat(oldBufLeft, fAudioOutBuffers[i], frames);

  1535.                     }

  1536. 

  1537.                     float balRangeL = (kData->postProc.balanceLeft  + 1.0f)/2.0f;

  1538.                     float balRangeR = (kData->postProc.balanceRight + 1.0f)/2.0f;

  1539. 

  1540.                     for (k=0; k < frames; ++k)

  1541.                     {

  1542.                         if (isPair)

  1543.                         {

  1544.                             // left

  1545.                             fAudioOutBuffers[i][k]  = oldBufLeft[k]            * (1.0f - balRangeL);

  1546.                             fAudioOutBuffers[i][k] += fAudioOutBuffers[i+1][k] * (1.0f - balRangeR);

  1547.                         }

  1548.                         else

  1549.                         {

  1550.                             // right

  1551.                             fAudioOutBuffers[i][k]  = fAudioOutBuffers[i][k] * balRangeR;

  1552.                             fAudioOutBuffers[i][k] += oldBufLeft[k]          * balRangeL;

  1553.                         }

  1554.                     }

  1555.                 }

  1556. 

  1557.                 // Volume (and buffer copy)

  1558.                 {

  1559.                     for (k=0; k < frames; ++k)

  1560.                         outBuffer[i][k+timeOffset] = fAudioOutBuffers[i][k] * kData->postProc.volume;

  1561.                 }

  1562.             }

  1563. 

  1564. #if 0

  1565.             // Latency, save values for next callback, TODO

  1566.             if (kData->latency > 0 && kData->latency < frames)

  1567.             {

  1568.                 for (i=0; i < kData->audioIn.count; ++i)

  1569.                     carla_copyFloat(kData->latencyBuffers[i], inBuffer[i] + (frames - kData->latency), kData->latency);

  1570.             }

  1571. #endif

  1572.         } // End of Post-processing

  1573. #else

  1574.         for (i=0; i < kData->audioOut.count; ++i)

  1575.         {

  1576.             for (k=0; k < frames; ++k)

  1577.                 outBuffer[i][k+timeOffset] = fAudioOutBuffers[i][k];

  1578.         }

  1579. #endif

  1580. 

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

  1582. 

  1583.         kData->singleMutex.unlock();

  1584.         return true;

  1585.     }

  1586. 

  1587.     void bufferSizeChanged(const uint32_t newBufferSize) override

  1588.     {

  1589.         CARLA_ASSERT_INT(newBufferSize > 0, newBufferSize);

  1590.         carla_debug("DssiPlugin::bufferSizeChanged(%i) - start", newBufferSize);

  1591. 

  1592.         for (uint32_t i=0; i < kData->audioIn.count; ++i)

  1593.         {

  1594.             if (fAudioInBuffers[i] != nullptr)

  1595.                 delete[] fAudioInBuffers[i];

  1596.             fAudioInBuffers[i] = new float[newBufferSize];

  1597.         }

  1598. 

  1599.         for (uint32_t i=0; i < kData->audioOut.count; ++i)

  1600.         {

  1601.             if (fAudioOutBuffers[i] != nullptr)

  1602.                 delete[] fAudioOutBuffers[i];

  1603.             fAudioOutBuffers[i] = new float[newBufferSize];

  1604.         }

  1605. 

  1606.         if (fHandle2 == nullptr)

  1607.         {

  1608.             for (uint32_t i=0; i < kData->audioIn.count; ++i)

  1609.             {

  1610.                 CARLA_ASSERT(fAudioInBuffers[i] != nullptr);

  1611.                 fDescriptor->connect_port(fHandle, kData->audioIn.ports[i].rindex, fAudioInBuffers[i]);

  1612.             }

  1613. 

  1614.             for (uint32_t i=0; i < kData->audioOut.count; ++i)

  1615.             {

  1616.                 CARLA_ASSERT(fAudioOutBuffers[i] != nullptr);

  1617.                 fDescriptor->connect_port(fHandle, kData->audioOut.ports[i].rindex, fAudioOutBuffers[i]);

  1618.             }

  1619.         }

  1620.         else

  1621.         {

  1622.             if (kData->audioIn.count > 0)

  1623.             {

  1624.                 CARLA_ASSERT(kData->audioIn.count == 2);

  1625.                 CARLA_ASSERT(fAudioInBuffers[0] != nullptr);

  1626.                 CARLA_ASSERT(fAudioInBuffers[1] != nullptr);

  1627. 

  1628.                 fDescriptor->connect_port(fHandle,  kData->audioIn.ports[0].rindex, fAudioInBuffers[0]);

  1629.                 fDescriptor->connect_port(fHandle2, kData->audioIn.ports[1].rindex, fAudioInBuffers[1]);

  1630.             }

  1631. 

  1632.             if (kData->audioOut.count > 0)

  1633.             {

  1634.                 CARLA_ASSERT(kData->audioOut.count == 2);

  1635.                 CARLA_ASSERT(fAudioOutBuffers[0] != nullptr);

  1636.                 CARLA_ASSERT(fAudioOutBuffers[1] != nullptr);

  1637. 

  1638.                 fDescriptor->connect_port(fHandle,  kData->audioOut.ports[0].rindex, fAudioOutBuffers[0]);

  1639.                 fDescriptor->connect_port(fHandle2, kData->audioOut.ports[1].rindex, fAudioOutBuffers[1]);

  1640.             }

  1641.         }

  1642. 

  1643.         carla_debug("DssiPlugin::bufferSizeChanged(%i) - start", newBufferSize);

  1644.     }

  1645. 

  1646.     void sampleRateChanged(const double newSampleRate) override

  1647.     {

  1648.         CARLA_ASSERT_INT(newSampleRate > 0.0, newSampleRate);

  1649.         carla_debug("DssiPlugin::sampleRateChanged(%g) - start", newSampleRate);

  1650. 

  1651.         // TODO

  1652.         (void)newSampleRate;

  1653. 

  1654.         carla_debug("DssiPlugin::sampleRateChanged(%g) - end", newSampleRate);

  1655.     }

  1656. 

  1657.     // -------------------------------------------------------------------

  1658.     // Plugin buffers

  1659. 

  1660.     void clearBuffers() override

  1661.     {

  1662.         carla_debug("DssiPlugin::clearBuffers() - start");

  1663. 

  1664.         if (fAudioInBuffers != nullptr)

  1665.         {

  1666.             for (uint32_t i=0; i < kData->audioIn.count; ++i)

  1667.             {

  1668.                 if (fAudioInBuffers[i] != nullptr)

  1669.                 {

  1670.                     delete[] fAudioInBuffers[i];

  1671.                     fAudioInBuffers[i] = nullptr;

  1672.                 }

  1673.             }

  1674. 

  1675.             delete[] fAudioInBuffers;

  1676.             fAudioInBuffers = nullptr;

  1677.         }

  1678. 

  1679.         if (fAudioOutBuffers != nullptr)

  1680.         {

  1681.             for (uint32_t i=0; i < kData->audioOut.count; ++i)

  1682.             {

  1683.                 if (fAudioOutBuffers[i] != nullptr)

  1684.                 {

  1685.                     delete[] fAudioOutBuffers[i];

  1686.                     fAudioOutBuffers[i] = nullptr;

  1687.                 }

  1688.             }

  1689. 

  1690.             delete[] fAudioOutBuffers;

  1691.             fAudioOutBuffers = nullptr;

  1692.         }

  1693. 

  1694.         if (fParamBuffers != nullptr)

  1695.         {

  1696.             delete[] fParamBuffers;

  1697.             fParamBuffers = nullptr;

  1698.         }

  1699. 

  1700.         CarlaPlugin::clearBuffers();

  1701. 

  1702.         carla_debug("DssiPlugin::clearBuffers() - end");

  1703.     }

  1704. 

  1705.     // -------------------------------------------------------------------

  1706.     // Post-poned UI Stuff

  1707. 

  1708.     void uiParameterChange(const uint32_t index, const float value) override

  1709.     {

  1710.         CARLA_ASSERT(index < kData->param.count);

  1711. 

  1712.         if (index >= kData->param.count)

  1713.             return;

  1714.         if (kData->osc.data.target == nullptr)

  1715.             return;

  1716. 

  1717.         osc_send_control(&kData->osc.data, kData->param.data[index].rindex, value);

  1718.     }

  1719. 

  1720.     void uiMidiProgramChange(const uint32_t index) override

  1721.     {

  1722.         CARLA_ASSERT(index < kData->midiprog.count);

  1723. 

  1724.         if (index >= kData->midiprog.count)

  1725.             return;

  1726.         if (kData->osc.data.target == nullptr)

  1727.             return;

  1728. 

  1729.         osc_send_program(&kData->osc.data, kData->midiprog.data[index].bank, kData->midiprog.data[index].program);

  1730.     }

  1731. 

  1732.     void uiNoteOn(const uint8_t channel, const uint8_t note, const uint8_t velo) override

  1733.     {

  1734.         CARLA_ASSERT(channel < MAX_MIDI_CHANNELS);

  1735.         CARLA_ASSERT(note < MAX_MIDI_NOTE);

  1736.         CARLA_ASSERT(velo > 0 && velo < MAX_MIDI_VALUE);

  1737. 

  1738.         if (channel >= MAX_MIDI_CHANNELS)

  1739.             return;

  1740.         if (note >= MAX_MIDI_NOTE)

  1741.             return;

  1742.         if (velo >= MAX_MIDI_VALUE)

  1743.             return;

  1744.         if (kData->osc.data.target == nullptr)

  1745.             return;

  1746. 

  1747. #if 0

  1748.         uint8_t midiData[4] = { 0 };

  1749.         midiData[1] = MIDI_STATUS_NOTE_ON + channel;

  1750.         midiData[2] = note;

  1751.         midiData[3] = velo;

  1752. 

  1753.         osc_send_midi(&kData->osc.data, midiData);

  1754. #endif

  1755.     }

  1756. 

  1757.     void uiNoteOff(const uint8_t channel, const uint8_t note) override

  1758.     {

  1759.         CARLA_ASSERT(channel < MAX_MIDI_CHANNELS);

  1760.         CARLA_ASSERT(note < MAX_MIDI_NOTE);

  1761. 

  1762.         if (channel >= MAX_MIDI_CHANNELS)

  1763.             return;

  1764.         if (note >= MAX_MIDI_NOTE)

  1765.             return;

  1766.         if (kData->osc.data.target == nullptr)

  1767.             return;

  1768. 

  1769. #if 0

  1770.         uint8_t midiData[4] = { 0 };

  1771.         midiData[1] = MIDI_STATUS_NOTE_OFF + channel;

  1772.         midiData[2] = note;

  1773. 

  1774.         osc_send_midi(&kData->osc.data, midiData);

  1775. #endif

  1776.     }

  1777. 

  1778.     // -------------------------------------------------------------------

  1779. 

  1780.     const void* getExtraStuff() const override

  1781.     {

  1782.         return fGuiFilename.isNotEmpty() ? (const char*)fGuiFilename : nullptr;

  1783.     }

  1784. 

  1785.     bool init(const char* const filename, const char* const name, const char* const label, const char* const guiFilename)

  1786.     {

  1787.         CARLA_ASSERT(kData->engine != nullptr);

  1788.         CARLA_ASSERT(kData->client == nullptr);

  1789.         CARLA_ASSERT(filename != nullptr);

  1790.         CARLA_ASSERT(label != nullptr);

  1791. 

  1792.         // ---------------------------------------------------------------

  1793.         // first checks

  1794. 

  1795.         if (kData->engine == nullptr)

  1796.         {

  1797.             return false;

  1798.         }

  1799. 

  1800.         if (kData->client != nullptr)

  1801.         {

  1802.             kData->engine->setLastError("Plugin client is already registered");

  1803.             return false;

  1804.         }

  1805. 

  1806.         if (filename == nullptr)

  1807.         {

  1808.             kData->engine->setLastError("null filename");

  1809.             return false;

  1810.         }

  1811. 

  1812.         if (label == nullptr)

  1813.         {

  1814.             kData->engine->setLastError("null label");

  1815.             return false;

  1816.         }

  1817. 

  1818.         // ---------------------------------------------------------------

  1819.         // open DLL

  1820. 

  1821.         if (! kData->libOpen(filename))

  1822.         {

  1823.             kData->engine->setLastError(kData->libError(filename));

  1824.             return false;

  1825.         }

  1826. 

  1827.         // ---------------------------------------------------------------

  1828.         // get DLL main entry

  1829. 

  1830.         const DSSI_Descriptor_Function descFn = (DSSI_Descriptor_Function)kData->libSymbol("dssi_descriptor");

  1831. 

  1832.         if (descFn == nullptr)

  1833.         {

  1834.             kData->engine->setLastError("Could not find the DSSI Descriptor in the plugin library");

  1835.             return false;

  1836.         }

  1837. 

  1838.         // ---------------------------------------------------------------

  1839.         // get descriptor that matches label

  1840. 

  1841.         unsigned long i = 0;

  1842.         while ((fDssiDescriptor = descFn(i++)) != nullptr)

  1843.         {

  1844.             fDescriptor = fDssiDescriptor->LADSPA_Plugin;

  1845.             if (fDescriptor != nullptr && fDescriptor->Label != nullptr && std::strcmp(fDescriptor->Label, label) == 0)

  1846.                 break;

  1847.         }

  1848. 

  1849.         if (fDescriptor == nullptr || fDssiDescriptor == nullptr)

  1850.         {

  1851.             kData->engine->setLastError("Could not find the requested plugin label in the plugin library");

  1852.             return false;

  1853.         }

  1854. 

  1855.         // ---------------------------------------------------------------

  1856.         // get info

  1857. 

  1858.         if (name != nullptr)

  1859.             fName = kData->engine->getUniquePluginName(name);

  1860.         else if (fDescriptor->Name != nullptr)

  1861.             fName = kData->engine->getUniquePluginName(fDescriptor->Name);

  1862.         else

  1863.             fName = kData->engine->getUniquePluginName(fDescriptor->Label);

  1864. 

  1865.         fFilename = filename;

  1866. 

  1867.         // ---------------------------------------------------------------

  1868.         // register client

  1869. 

  1870.         kData->client = kData->engine->addClient(this);

  1871. 

  1872.         if (kData->client == nullptr || ! kData->client->isOk())

  1873.         {

  1874.             kData->engine->setLastError("Failed to register plugin client");

  1875.             return false;

  1876.         }

  1877. 

  1878.         // ---------------------------------------------------------------

  1879.         // initialize plugin

  1880. 

  1881.         fHandle = fDescriptor->instantiate(fDescriptor, (unsigned long)kData->engine->getSampleRate());

  1882. 

  1883.         if (fHandle == nullptr)

  1884.         {

  1885.             kData->engine->setLastError("Plugin failed to initialize");

  1886.             return false;

  1887.         }

  1888. 

  1889.         // ---------------------------------------------------------------

  1890.         // gui stuff

  1891. 

  1892.         if (guiFilename != nullptr)

  1893.         {

  1894.             fGuiFilename = guiFilename;

  1895.             kData->osc.thread.setOscData(guiFilename, fDescriptor->Label);

  1896.         }

  1897. 

  1898.         // ---------------------------------------------------------------

  1899.         // load plugin settings

  1900. 

  1901.         {

  1902. #ifdef __USE_GNU

  1903.             const bool isDssiVst = fFilename.contains("dssi-vst", true);

  1904. #else

  1905.             const bool isDssiVst = fFilename.contains("dssi-vst");

  1906. #endif

  1907. 

  1908.             // set default options

  1909.             fOptions = 0x0;

  1910. 

  1911.             fOptions |= PLUGIN_OPTION_MAP_PROGRAM_CHANGES;

  1912. 

  1913.             if (kData->engine->getOptions().forceStereo)

  1914.                 fOptions |= PLUGIN_OPTION_FORCE_STEREO;

  1915. 

  1916.             if (isDssiVst)

  1917.             {

  1918.                 fOptions |= PLUGIN_OPTION_FIXED_BUFFER;

  1919. 

  1920.                 if (kData->engine->getOptions().useDssiVstChunks && fDssiDescriptor->get_custom_data != nullptr && fDssiDescriptor->set_custom_data != nullptr)

  1921.                     fOptions |= PLUGIN_OPTION_USE_CHUNKS;

  1922.             }

  1923. 

  1924.             if (fDssiDescriptor->run_synth != nullptr || fDssiDescriptor->run_multiple_synths != nullptr)

  1925.             {

  1926.                 fOptions |= PLUGIN_OPTION_SEND_CHANNEL_PRESSURE;

  1927.                 fOptions |= PLUGIN_OPTION_SEND_NOTE_AFTERTOUCH;

  1928.                 fOptions |= PLUGIN_OPTION_SEND_PITCHBEND;

  1929.                 fOptions |= PLUGIN_OPTION_SEND_ALL_SOUND_OFF;

  1930. 

  1931.                 if (fDssiDescriptor->run_synth == nullptr)

  1932.                     carla_stderr2("Plugin can ONLY use run_multiple_synths!");

  1933.             }

  1934. 

  1935.             // load settings

  1936.             kData->idStr  = "DSSI/";

  1937.             kData->idStr += std::strrchr(filename, OS_SEP)+1;

  1938.             kData->idStr += "/";

  1939.             kData->idStr += label;

  1940.             fOptions = kData->loadSettings(fOptions, availableOptions());

  1941. 

  1942.             // ignore settings, we need this anyway

  1943.             if (isDssiVst)

  1944.                 fOptions |= PLUGIN_OPTION_FIXED_BUFFER;

  1945.         }

  1946. 

  1947.         return true;

  1948.     }

  1949. 

  1950. private:

  1951.     LADSPA_Handle fHandle;

  1952.     LADSPA_Handle fHandle2;

  1953.     const LADSPA_Descriptor* fDescriptor;

  1954.     const DSSI_Descriptor*   fDssiDescriptor;

  1955. 

  1956.     CarlaString fGuiFilename;

  1957. 

  1958.     float** fAudioInBuffers;

  1959.     float** fAudioOutBuffers;

  1960.     float*  fParamBuffers;

  1961.     snd_seq_event_t fMidiEvents[MAX_MIDI_EVENTS];

  1962. 

  1963.     CARLA_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR(DssiPlugin)

  1964. };

  1965. 

  1966. CARLA_BACKEND_END_NAMESPACE

  1967. 

  1968. #else // WANT_DSSI

  1969. # warning Building without DSSI support

  1970. #endif

  1971. 

  1972. CARLA_BACKEND_START_NAMESPACE

  1973. 

  1974. CarlaPlugin* CarlaPlugin::newDSSI(const Initializer& init, const char* const guiFilename)

  1975. {

  1976.     carla_debug("CarlaPlugin::newDSSI({%p, \"%s\", \"%s\", \"%s\"}, \"%s\")", init.engine, init.filename, init.name, init.label, guiFilename);

  1977. 

  1978. #ifdef WANT_DSSI

  1979.     DssiPlugin* const plugin(new DssiPlugin(init.engine, init.id));

  1980. 

  1981.     if (! plugin->init(init.filename, init.name, init.label, guiFilename))

  1982.     {

  1983.         delete plugin;

  1984.         return nullptr;

  1985.     }

  1986. 

  1987.     plugin->reload();

  1988. 

  1989.     if (init.engine->getProccessMode() == PROCESS_MODE_CONTINUOUS_RACK && ! CarlaPluginProtectedData::canRunInRack(plugin))

  1990.     {

  1991.         init.engine->setLastError("Carla's rack mode can only work with Mono or Stereo DSSI plugins, sorry!");

  1992.         delete plugin;

  1993.         return nullptr;

  1994.     }

  1995. 

  1996.     return plugin;

  1997. #else

  1998.     init.engine->setLastError("DSSI support not available");

  1999.     return nullptr;

  2000. #endif

  2001. }

  2002. 

  2003. CARLA_BACKEND_END_NAMESPACE