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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 (fHandle2 != nullptr)

  465.             {

  466.                 if (aIns == 1)

  467.                 {

  468.                     aIns = 2;

  469.                     forcedStereoIn = true;

  470.                 }

  471. 

  472.                 if (aOuts == 1)

  473.                 {

  474.                     aOuts = 2;

  475.                     forcedStereoOut = true;

  476.                 }

  477.             }

  478.         }

  479. 

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

  481.         {

  482.             mIns = 1;

  483.             needsCtrlIn = true;

  484.         }

  485. 

  486.         if (aIns > 0)

  487.         {

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

  489.             fAudioInBuffers = new float*[aIns];

  490. 

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

  492.                 fAudioInBuffers[i] = nullptr;

  493.         }

  494. 

  495.         if (aOuts > 0)

  496.         {

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

  498.             fAudioOutBuffers = new float*[aOuts];

  499.             needsCtrlIn = true;

  500. 

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

  502.                 fAudioOutBuffers[i] = nullptr;

  503.         }

  504. 

  505.         if (params > 0)

  506.         {

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

  508.             fParamBuffers = new float[params];

  509. 

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

  511.                 fParamBuffers[i] = 0.0f;

  512.         }

  513. 

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

  515.         CarlaString portName;

  516. 

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

  518.         {

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

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

  521. 

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

  523. 

  524.             if (LADSPA_IS_PORT_AUDIO(portType))

  525.             {

  526.                 portName.clear();

  527. 

  528.                 if (processMode == PROCESS_MODE_SINGLE_CLIENT)

  529.                 {

  530.                     portName  = fName;

  531.                     portName += ":";

  532.                 }

  533. 

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

  535.                 portName.truncate(portNameSize);

  536. 

  537.                 if (LADSPA_IS_PORT_INPUT(portType))

  538.                 {

  539.                     j = iAudioIn++;

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

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

  542. 

  543.                     if (forcedStereoIn)

  544.                     {

  545.                         portName += "_2";

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

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

  548.                     }

  549.                 }

  550.                 else if (LADSPA_IS_PORT_OUTPUT(portType))

  551.                 {

  552.                     j = iAudioOut++;

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

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

  555. 

  556.                     if (forcedStereoOut)

  557.                     {

  558.                         portName += "_2";

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

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

  561.                     }

  562.                 }

  563.                 else

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

  565.             }

  566.             else if (LADSPA_IS_PORT_CONTROL(portType))

  567.             {

  568.                 j = iCtrl++;

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

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

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

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

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

  574. 

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

  576. 

  577.                 // min value

  578.                 if (LADSPA_IS_HINT_BOUNDED_BELOW(portRangeHints.HintDescriptor))

  579.                     min = portRangeHints.LowerBound;

  580.                 else

  581.                     min = 0.0f;

  582. 

  583.                 // max value

  584.                 if (LADSPA_IS_HINT_BOUNDED_ABOVE(portRangeHints.HintDescriptor))

  585.                     max = portRangeHints.UpperBound;

  586.                 else

  587.                     max = 1.0f;

  588. 

  589.                 if (min > max)

  590.                     max = min;

  591.                 else if (max < min)

  592.                     min = max;

  593. 

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

  595.                 {

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

  597.                     max = min + 0.1f;

  598.                 }

  599. 

  600.                 // default value

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

  602. 

  603.                 if (def < min)

  604.                     def = min;

  605.                 else if (def > max)

  606.                     def = max;

  607. 

  608.                 if (LADSPA_IS_HINT_SAMPLE_RATE(portRangeHints.HintDescriptor))

  609.                 {

  610.                     min *= sampleRate;

  611.                     max *= sampleRate;

  612.                     def *= sampleRate;

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

  614.                 }

  615. 

  616.                 if (LADSPA_IS_HINT_TOGGLED(portRangeHints.HintDescriptor))

  617.                 {

  618.                     step = max - min;

  619.                     stepSmall = step;

  620.                     stepLarge = step;

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

  622.                 }

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

  624.                 {

  625.                     step = 1.0f;

  626.                     stepSmall = 1.0f;

  627.                     stepLarge = 10.0f;

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

  629.                 }

  630.                 else

  631.                 {

  632.                     float range = max - min;

  633.                     step = range/100.0f;

  634.                     stepSmall = range/1000.0f;

  635.                     stepLarge = range/10.0f;

  636.                 }

  637. 

  638.                 if (LADSPA_IS_PORT_INPUT(portType))

  639.                 {

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

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

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

  643.                     needsCtrlIn = true;

  644. 

  645.                     // MIDI CC value

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

  647.                     {

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

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

  650.                         {

  651.                             int16_t cc = DSSI_CC_NUMBER(controller);

  652.                             if (! MIDI_IS_CONTROL_BANK_SELECT(cc))

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

  654.                         }

  655.                     }

  656.                 }

  657.                 else if (LADSPA_IS_PORT_OUTPUT(portType))

  658.                 {

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

  660.                     {

  661.                         min = 0.0f;

  662.                         max = sampleRate;

  663.                         def = 0.0f;

  664.                         step = 1.0f;

  665.                         stepSmall = 1.0f;

  666.                         stepLarge = 1.0f;

  667. 

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

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

  670.                     }

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

  672.                     {

  673.                         def = sampleRate;

  674.                         step = 1.0f;

  675.                         stepSmall = 1.0f;

  676.                         stepLarge = 1.0f;

  677. 

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

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

  680.                     }

  681.                     else

  682.                     {

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

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

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

  686.                         needsCtrlOut = true;

  687.                     }

  688.                 }

  689.                 else

  690.                 {

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

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

  693.                 }

  694. 

  695.                 // extra parameter hints

  696.                 if (LADSPA_IS_HINT_LOGARITHMIC(portRangeHints.HintDescriptor))

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

  698. 

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

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

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

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

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

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

  705. 

  706.                 // Start parameters in their default values

  707.                 fParamBuffers[j] = def;

  708. 

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

  710. 

  711.                 if (fHandle2 != nullptr)

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

  713.             }

  714.             else

  715.             {

  716.                 // Not Audio or Control

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

  718. 

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

  720. 

  721.                 if (fHandle2 != nullptr)

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

  723.             }

  724.         }

  725. 

  726.         if (needsCtrlIn)

  727.         {

  728.             portName.clear();

  729. 

  730.             if (processMode == PROCESS_MODE_SINGLE_CLIENT)

  731.             {

  732.                 portName  = fName;

  733.                 portName += ":";

  734.             }

  735. 

  736.             portName += "events-in";

  737.             portName.truncate(portNameSize);

  738. 

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

  740.         }

  741. 

  742.         if (needsCtrlOut)

  743.         {

  744.             portName.clear();

  745. 

  746.             if (processMode == PROCESS_MODE_SINGLE_CLIENT)

  747.             {

  748.                 portName  = fName;

  749.                 portName += ":";

  750.             }

  751. 

  752.             portName += "events-out";

  753.             portName.truncate(portNameSize);

  754. 

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

  756.         }

  757. 

  758.         if (forcedStereoIn || forcedStereoOut)

  759.             fOptions |= PLUGIN_OPTION_FORCE_STEREO;

  760.         else

  761.             fOptions &= ~PLUGIN_OPTION_FORCE_STEREO;

  762. 

  763.         // plugin hints

  764.         fHints = 0x0;

  765. 

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

  767.             fHints |= PLUGIN_IS_RTSAFE;

  768. 

  769.         if (fGuiFilename.isNotEmpty())

  770.             fHints |= PLUGIN_HAS_GUI;

  771. 

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

  773.             fHints |= PLUGIN_IS_SYNTH;

  774. 

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

  776.             fHints |= PLUGIN_CAN_DRYWET;

  777. 

  778.         if (aOuts > 0)

  779.             fHints |= PLUGIN_CAN_VOLUME;

  780. 

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

  782.             fHints |= PLUGIN_CAN_BALANCE;

  783. 

  784.         // extra plugin hints

  785.         kData->extraHints = 0x0;

  786. 

  787.         if (mIns > 0)

  788.             kData->extraHints |= PLUGIN_HINT_HAS_MIDI_IN;

  789. 

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

  791.             kData->extraHints |= PLUGIN_HINT_CAN_RUN_RACK;

  792. 

  793.         // check latency

  794.         if (fHints & PLUGIN_CAN_DRYWET)

  795.         {

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

  797.             {

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

  799.                     continue;

  800. 

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

  802. 

  803.                 float tmpIn[aIns][2];

  804.                 float tmpOut[aOuts][2];

  805. 

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

  807.                 {

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

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

  810. 

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

  812.                 }

  813. 

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

  815.                 {

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

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

  818. 

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

  820.                 }

  821. 

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

  823.                     fDescriptor->activate(fHandle);

  824. 

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

  826. 

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

  828.                     fDescriptor->deactivate(fHandle);

  829. 

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

  831. 

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

  833.                 {

  834.                     kData->latency = latency;

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

  836.                     kData->recreateLatencyBuffers();

  837.                 }

  838. 

  839.                 break;

  840.             }

  841.         }

  842. 

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

  844.         reloadPrograms(true);

  845. 

  846.         if (kData->active)

  847.             activate();

  848. 

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

  850.     }

  851. 

  852.     void reloadPrograms(const bool init) override

  853.     {

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

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

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

  857. 

  858.         // Delete old programs

  859.         kData->midiprog.clear();

  860. 

  861.         // Query new programs

  862.         uint32_t count = 0;

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

  864.         {

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

  866.                 count++;

  867.         }

  868. 

  869.         if (count > 0)

  870.         {

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

  872. 

  873.             // Update data

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

  875.             {

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

  877.                 CARLA_ASSERT(pdesc != nullptr);

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

  879. 

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

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

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

  883.             }

  884.         }

  885. 

  886. #ifndef BUILD_BRIDGE

  887.         // Update OSC Names

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

  889.         {

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

  891. 

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

  893.                 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);

  894.         }

  895. #endif

  896. 

  897.         if (init)

  898.         {

  899.             if (count > 0)

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

  901.         }

  902.         else

  903.         {

  904.             // Check if current program is invalid

  905.             bool programChanged = false;

  906. 

  907.             if (count == oldCount+1)

  908.             {

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

  910.                 kData->midiprog.current = oldCount;

  911.                 programChanged = true;

  912.             }

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

  914.             {

  915.                 // programs exist now, but not before

  916.                 kData->midiprog.current = 0;

  917.                 programChanged = true;

  918.             }

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

  920.             {

  921.                 // programs existed before, but not anymore

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

  923.                 programChanged = true;

  924.             }

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

  926.             {

  927.                 // current midi program > count

  928.                 kData->midiprog.current = 0;

  929.                 programChanged = true;

  930.             }

  931.             else

  932.             {

  933.                 // no change

  934.                 kData->midiprog.current = current;

  935.             }

  936. 

  937.             if (programChanged)

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

  939. 

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

  941.         }

  942.     }

  943. 

  944.     // -------------------------------------------------------------------

  945.     // Plugin processing

  946. 

  947.     void activate() override

  948.     {

  949.         CARLA_ASSERT(fDescriptor != nullptr);

  950.         CARLA_ASSERT(fHandle != nullptr);

  951. 

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

  953.         {

  954.             fDescriptor->activate(fHandle);

  955. 

  956.             if (fHandle2 != nullptr)

  957.                 fDescriptor->activate(fHandle2);

  958.         }

  959.     }

  960. 

  961.     void deactivate() override

  962.     {

  963.         CARLA_ASSERT(fDescriptor != nullptr);

  964.         CARLA_ASSERT(fHandle != nullptr);

  965. 

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

  967.         {

  968.             fDescriptor->deactivate(fHandle);

  969. 

  970.             if (fHandle2 != nullptr)

  971.                 fDescriptor->deactivate(fHandle2);

  972.         }

  973.     }

  974. 

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

  976.     {

  977.         uint32_t i, k;

  978. 

  979.         // --------------------------------------------------------------------------------------------------------

  980.         // Check if active

  981. 

  982.         if (! kData->active)

  983.         {

  984.             // disable any output sound

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

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

  987. 

  988.             return;

  989.         }

  990. 

  991.         unsigned long midiEventCount = 0;

  992. 

  993.         // --------------------------------------------------------------------------------------------------------

  994.         // Check if needs reset

  995. 

  996.         if (kData->needsReset)

  997.         {

  998.             if (fOptions & PLUGIN_OPTION_SEND_ALL_SOUND_OFF)

  999.             {

  1000.                 for (unsigned char j=0, l=MAX_MIDI_CHANNELS; j < MAX_MIDI_CHANNELS; ++j)

  1001.                 {

  1002.                     carla_zeroStruct<snd_seq_event_t>(fMidiEvents[j]);

  1003.                     carla_zeroStruct<snd_seq_event_t>(fMidiEvents[j+l]);

  1004. 

  1005.                     fMidiEvents[j].type = SND_SEQ_EVENT_CONTROLLER;

  1006.                     fMidiEvents[j].data.control.channel = j;

  1007.                     fMidiEvents[j].data.control.param   = MIDI_CONTROL_ALL_NOTES_OFF;

  1008. 

  1009.                     fMidiEvents[j+l].type = SND_SEQ_EVENT_CONTROLLER;

  1010.                     fMidiEvents[j+l].data.control.channel = j;

  1011.                     fMidiEvents[j+l].data.control.param   = MIDI_CONTROL_ALL_SOUND_OFF;

  1012.                 }

  1013. 

  1014.                 midiEventCount = MAX_MIDI_CHANNELS*2;

  1015.             }

  1016.             else if (kData->ctrlChannel >= 0 && kData->ctrlChannel < MAX_MIDI_CHANNELS)

  1017.             {

  1018.                 for (unsigned char j=0; j < MAX_MIDI_NOTE; ++j)

  1019.                 {

  1020.                     carla_zeroStruct<snd_seq_event_t>(fMidiEvents[j]);

  1021. 

  1022.                     fMidiEvents[j].type = SND_SEQ_EVENT_NOTEOFF;

  1023.                     fMidiEvents[j].data.note.channel = kData->ctrlChannel;

  1024.                     fMidiEvents[j].data.note.note    = j;

  1025.                 }

  1026. 

  1027.                 midiEventCount = MAX_MIDI_NOTE;

  1028.             }

  1029. 

  1030.             if (kData->latency > 0)

  1031.             {

  1032.                 for (i=0; i < kData->audioIn.count; ++i)

  1033.                     carla_zeroFloat(kData->latencyBuffers[i], kData->latency);

  1034.             }

  1035. 

  1036.             kData->needsReset = false;

  1037.         }

  1038. 

  1039.         // --------------------------------------------------------------------------------------------------------

  1040.         // Event Input and Processing

  1041. 

  1042.         if (kData->event.portIn != nullptr)

  1043.         {

  1044.             // ----------------------------------------------------------------------------------------------------

  1045.             // MIDI Input (External)

  1046. 

  1047.             if (kData->extNotes.mutex.tryLock())

  1048.             {

  1049.                 while (midiEventCount < MAX_MIDI_EVENTS && ! kData->extNotes.data.isEmpty())

  1050.                 {

  1051.                     const ExternalMidiNote& note(kData->extNotes.data.getFirst(true));

  1052. 

  1053.                     CARLA_ASSERT(note.channel >= 0 && note.channel < MAX_MIDI_CHANNELS);

  1054. 

  1055.                     fMidiEvents[midiEventCount].type               = (note.velo > 0) ? SND_SEQ_EVENT_NOTEON : SND_SEQ_EVENT_NOTEOFF;

  1056.                     fMidiEvents[midiEventCount].data.note.channel  = note.channel;

  1057.                     fMidiEvents[midiEventCount].data.note.note     = note.note;

  1058.                     fMidiEvents[midiEventCount].data.note.velocity = note.velo;

  1059. 

  1060.                     midiEventCount += 1;

  1061.                 }

  1062. 

  1063.                 kData->extNotes.mutex.unlock();

  1064. 

  1065.             } // End of MIDI Input (External)

  1066. 

  1067.             // ----------------------------------------------------------------------------------------------------

  1068.             // Event Input (System)

  1069. 

  1070.             bool allNotesOffSent = false;

  1071.             bool sampleAccurate  = (fOptions & PLUGIN_OPTION_FIXED_BUFFER) == 0;

  1072. 

  1073.             uint32_t time, nEvents = kData->event.portIn->getEventCount();

  1074.             uint32_t startTime  = 0;

  1075.             uint32_t timeOffset = 0;

  1076.             uint32_t nextBankId = 0;

  1077. 

  1078.             if (kData->midiprog.current >= 0 && kData->midiprog.count > 0)

  1079.                 nextBankId = kData->midiprog.data[kData->midiprog.current].bank;

  1080. 

  1081.             for (i=0; i < nEvents; ++i)

  1082.             {

  1083.                 const EngineEvent& event(kData->event.portIn->getEvent(i));

  1084. 

  1085.                 time = event.time;

  1086. 

  1087.                 if (time >= frames)

  1088.                     continue;

  1089. 

  1090.                 CARLA_ASSERT_INT2(time >= timeOffset, time, timeOffset);

  1091. 

  1092.                 if (time > timeOffset && sampleAccurate)

  1093.                 {

  1094.                     if (processSingle(inBuffer, outBuffer, time - timeOffset, timeOffset, midiEventCount))

  1095.                     {

  1096.                         startTime  = 0;

  1097.                         timeOffset = time;

  1098.                         midiEventCount = 0;

  1099. 

  1100.                         if (kData->midiprog.current >= 0 && kData->midiprog.count > 0)

  1101.                             nextBankId = kData->midiprog.data[kData->midiprog.current].bank;

  1102.                         else

  1103.                             nextBankId = 0;

  1104.                     }

  1105.                     else

  1106.                         startTime += timeOffset;

  1107.                 }

  1108. 

  1109.                 // Control change

  1110.                 switch (event.type)

  1111.                 {

  1112.                 case kEngineEventTypeNull:

  1113.                     break;

  1114. 

  1115.                 case kEngineEventTypeControl:

  1116.                 {

  1117.                     const EngineControlEvent& ctrlEvent = event.ctrl;

  1118. 

  1119.                     switch (ctrlEvent.type)

  1120.                     {

  1121.                     case kEngineControlEventTypeNull:

  1122.                         break;

  1123. 

  1124.                     case kEngineControlEventTypeParameter:

  1125.                     {

  1126. #ifndef BUILD_BRIDGE

  1127.                         // Control backend stuff

  1128.                         if (event.channel == kData->ctrlChannel)

  1129.                         {

  1130.                             float value;

  1131. 

  1132.                             if (MIDI_IS_CONTROL_BREATH_CONTROLLER(ctrlEvent.param) && (fHints & PLUGIN_CAN_DRYWET) > 0)

  1133.                             {

  1134.                                 value = ctrlEvent.value;

  1135.                                 setDryWet(value, false, false);

  1136.                                 postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_DRYWET, 0, value);

  1137.                             }

  1138. 

  1139.                             if (MIDI_IS_CONTROL_CHANNEL_VOLUME(ctrlEvent.param) && (fHints & PLUGIN_CAN_VOLUME) > 0)

  1140.                             {

  1141.                                 value = ctrlEvent.value*127.0f/100.0f;

  1142.                                 setVolume(value, false, false);

  1143.                                 postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_VOLUME, 0, value);

  1144.                             }

  1145. 

  1146.                             if (MIDI_IS_CONTROL_BALANCE(ctrlEvent.param) && (fHints & PLUGIN_CAN_BALANCE) > 0)

  1147.                             {

  1148.                                 float left, right;

  1149.                                 value = ctrlEvent.value/0.5f - 1.0f;

  1150. 

  1151.                                 if (value < 0.0f)

  1152.                                 {

  1153.                                     left  = -1.0f;

  1154.                                     right = (value*2.0f)+1.0f;

  1155.                                 }

  1156.                                 else if (value > 0.0f)

  1157.                                 {

  1158.                                     left  = (value*2.0f)-1.0f;

  1159.                                     right = 1.0f;

  1160.                                 }

  1161.                                 else

  1162.                                 {

  1163.                                     left  = -1.0f;

  1164.                                     right = 1.0f;

  1165.                                 }

  1166. 

  1167.                                 setBalanceLeft(left, false, false);

  1168.                                 setBalanceRight(right, false, false);

  1169.                                 postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_BALANCE_LEFT, 0, left);

  1170.                                 postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_BALANCE_RIGHT, 0, right);

  1171.                             }

  1172.                         }

  1173. #endif

  1174. 

  1175.                         // Control plugin parameters

  1176.                         for (k=0; k < kData->param.count; ++k)

  1177.                         {

  1178.                             if (kData->param.data[k].midiChannel != event.channel)

  1179.                                 continue;

  1180.                             if (kData->param.data[k].midiCC != ctrlEvent.param)

  1181.                                 continue;

  1182.                             if (kData->param.data[k].type != PARAMETER_INPUT)

  1183.                                 continue;

  1184.                             if ((kData->param.data[k].hints & PARAMETER_IS_AUTOMABLE) == 0)

  1185.                                 continue;

  1186. 

  1187.                             float value;

  1188. 

  1189.                             if (kData->param.data[k].hints & PARAMETER_IS_BOOLEAN)

  1190.                             {

  1191.                                 value = (ctrlEvent.value < 0.5f) ? kData->param.ranges[k].min : kData->param.ranges[k].max;

  1192.                             }

  1193.                             else

  1194.                             {

  1195.                                 value = kData->param.ranges[i].unnormalizeValue(ctrlEvent.value);

  1196. 

  1197.                                 if (kData->param.data[k].hints & PARAMETER_IS_INTEGER)

  1198.                                     value = std::rint(value);

  1199.                             }

  1200. 

  1201.                             setParameterValue(k, value, false, false, false);

  1202.                             postponeRtEvent(kPluginPostRtEventParameterChange, static_cast<int32_t>(k), 0, value);

  1203.                         }

  1204. 

  1205.                         if ((fOptions & PLUGIN_OPTION_SEND_CONTROL_CHANGES) != 0 && ctrlEvent.param <= 0x5F)

  1206.                         {

  1207.                             if (midiEventCount >= MAX_MIDI_EVENTS)

  1208.                                 continue;

  1209. 

  1210.                             carla_zeroStruct<snd_seq_event_t>(fMidiEvents[midiEventCount]);

  1211. 

  1212.                             fMidiEvents[midiEventCount].time.tick = sampleAccurate ? startTime : time;

  1213. 

  1214.                             fMidiEvents[midiEventCount].type = SND_SEQ_EVENT_CONTROLLER;

  1215.                             fMidiEvents[midiEventCount].data.control.channel = event.channel;

  1216.                             fMidiEvents[midiEventCount].data.control.param   = ctrlEvent.param;

  1217.                             fMidiEvents[midiEventCount].data.control.value   = ctrlEvent.value*127.0f;

  1218. 

  1219.                             midiEventCount += 1;

  1220.                         }

  1221. 

  1222.                         break;

  1223.                     }

  1224. 

  1225.                     case kEngineControlEventTypeMidiBank:

  1226.                         if (event.channel == kData->ctrlChannel && (fOptions & PLUGIN_OPTION_MAP_PROGRAM_CHANGES) != 0)

  1227.                             nextBankId = ctrlEvent.param;

  1228.                         break;

  1229. 

  1230.                     case kEngineControlEventTypeMidiProgram:

  1231.                         if (event.channel == kData->ctrlChannel && (fOptions & PLUGIN_OPTION_MAP_PROGRAM_CHANGES) != 0)

  1232.                         {

  1233.                             const uint32_t nextProgramId = ctrlEvent.param;

  1234. 

  1235.                             for (k=0; k < kData->midiprog.count; ++k)

  1236.                             {

  1237.                                 if (kData->midiprog.data[k].bank == nextBankId && kData->midiprog.data[k].program == nextProgramId)

  1238.                                 {

  1239.                                     setMidiProgram(k, false, false, false);

  1240.                                     postponeRtEvent(kPluginPostRtEventMidiProgramChange, k, 0, 0.0f);

  1241.                                     break;

  1242.                                 }

  1243.                             }

  1244.                         }

  1245.                         break;

  1246. 

  1247.                     case kEngineControlEventTypeAllSoundOff:

  1248.                         if (fOptions & PLUGIN_OPTION_SEND_ALL_SOUND_OFF)

  1249.                         {

  1250.                             if (midiEventCount >= MAX_MIDI_EVENTS)

  1251.                                 continue;

  1252. 

  1253.                             carla_zeroStruct<snd_seq_event_t>(fMidiEvents[midiEventCount]);

  1254. 

  1255.                             fMidiEvents[midiEventCount].time.tick = sampleAccurate ? startTime : time;

  1256. 

  1257.                             fMidiEvents[midiEventCount].type = SND_SEQ_EVENT_CONTROLLER;

  1258.                             fMidiEvents[midiEventCount].data.control.channel = event.channel;

  1259.                             fMidiEvents[midiEventCount].data.control.param   = MIDI_CONTROL_ALL_SOUND_OFF;

  1260. 

  1261.                             midiEventCount += 1;

  1262.                         }

  1263.                         break;

  1264. 

  1265.                     case kEngineControlEventTypeAllNotesOff:

  1266.                         if (fOptions & PLUGIN_OPTION_SEND_ALL_SOUND_OFF)

  1267.                         {

  1268.                             if (event.channel == kData->ctrlChannel && ! allNotesOffSent)

  1269.                             {

  1270.                                 allNotesOffSent = true;

  1271.                                 sendMidiAllNotesOffToCallback();

  1272.                             }

  1273. 

  1274.                             if (midiEventCount >= MAX_MIDI_EVENTS)

  1275.                                 continue;

  1276. 

  1277.                             carla_zeroStruct<snd_seq_event_t>(fMidiEvents[midiEventCount]);

  1278. 

  1279.                             fMidiEvents[midiEventCount].time.tick = sampleAccurate ? startTime : time;

  1280. 

  1281.                             fMidiEvents[midiEventCount].type = SND_SEQ_EVENT_CONTROLLER;

  1282.                             fMidiEvents[midiEventCount].data.control.channel = event.channel;

  1283.                             fMidiEvents[midiEventCount].data.control.param   = MIDI_CONTROL_ALL_NOTES_OFF;

  1284. 

  1285.                             midiEventCount += 1;

  1286.                         }

  1287.                         break;

  1288.                     }

  1289. 

  1290.                     break;

  1291.                 }

  1292. 

  1293.                 case kEngineEventTypeMidi:

  1294.                 {

  1295.                     if (midiEventCount >= MAX_MIDI_EVENTS)

  1296.                         continue;

  1297. 

  1298.                     const EngineMidiEvent& midiEvent(event.midi);

  1299. 

  1300.                     uint8_t status  = MIDI_GET_STATUS_FROM_DATA(midiEvent.data);

  1301.                     uint8_t channel = event.channel;

  1302. 

  1303.                     // Fix bad note-off (per DSSI spec)

  1304.                     if (MIDI_IS_STATUS_NOTE_ON(status) && midiEvent.data[2] == 0)

  1305.                         status -= 0x10;

  1306. 

  1307.                     carla_zeroStruct<snd_seq_event_t>(fMidiEvents[midiEventCount]);

  1308. 

  1309.                     fMidiEvents[midiEventCount].time.tick = sampleAccurate ? startTime : time;

  1310. 

  1311.                     if (MIDI_IS_STATUS_NOTE_OFF(status))

  1312.                     {

  1313.                         const uint8_t note = midiEvent.data[1];

  1314. 

  1315.                         fMidiEvents[midiEventCount].type = SND_SEQ_EVENT_NOTEOFF;

  1316.                         fMidiEvents[midiEventCount].data.note.channel = channel;

  1317.                         fMidiEvents[midiEventCount].data.note.note    = note;

  1318. 

  1319.                         postponeRtEvent(kPluginPostRtEventNoteOff, channel, note, 0.0f);

  1320.                     }

  1321.                     else if (MIDI_IS_STATUS_NOTE_ON(status))

  1322.                     {

  1323.                         const uint8_t note = midiEvent.data[1];

  1324.                         const uint8_t velo = midiEvent.data[2];

  1325. 

  1326.                         fMidiEvents[midiEventCount].type = SND_SEQ_EVENT_NOTEON;

  1327.                         fMidiEvents[midiEventCount].data.note.channel  = channel;

  1328.                         fMidiEvents[midiEventCount].data.note.note     = note;

  1329.                         fMidiEvents[midiEventCount].data.note.velocity = velo;

  1330. 

  1331.                         postponeRtEvent(kPluginPostRtEventNoteOn, channel, note, velo);

  1332.                     }

  1333.                     else if (MIDI_IS_STATUS_POLYPHONIC_AFTERTOUCH(status) && (fOptions & PLUGIN_OPTION_SEND_NOTE_AFTERTOUCH) != 0)

  1334.                     {

  1335.                         const uint8_t note     = midiEvent.data[1];

  1336.                         const uint8_t pressure = midiEvent.data[2];

  1337. 

  1338.                         fMidiEvents[midiEventCount].type = SND_SEQ_EVENT_KEYPRESS;

  1339.                         fMidiEvents[midiEventCount].data.note.channel  = channel;

  1340.                         fMidiEvents[midiEventCount].data.note.note     = note;

  1341.                         fMidiEvents[midiEventCount].data.note.velocity = pressure;

  1342.                     }

  1343.                     else if (MIDI_IS_STATUS_CONTROL_CHANGE(status) && (fOptions & PLUGIN_OPTION_SEND_CONTROL_CHANGES) != 0)

  1344.                     {

  1345.                         const uint8_t control = midiEvent.data[1];

  1346.                         const uint8_t value   = midiEvent.data[2];

  1347. 

  1348.                         fMidiEvents[midiEventCount].type = SND_SEQ_EVENT_CONTROLLER;

  1349.                         fMidiEvents[midiEventCount].data.control.channel = channel;

  1350.                         fMidiEvents[midiEventCount].data.control.param   = control;

  1351.                         fMidiEvents[midiEventCount].data.control.value   = value;

  1352.                     }

  1353.                     else if (MIDI_IS_STATUS_AFTERTOUCH(status) && (fOptions & PLUGIN_OPTION_SEND_CHANNEL_PRESSURE) != 0)

  1354.                     {

  1355.                         const uint8_t pressure = midiEvent.data[1];

  1356. 

  1357.                         fMidiEvents[midiEventCount].type = SND_SEQ_EVENT_CHANPRESS;

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

  1359.                         fMidiEvents[midiEventCount].data.control.value   = pressure;

  1360.                     }

  1361.                     else if (MIDI_IS_STATUS_PITCH_WHEEL_CONTROL(status) && (fOptions & PLUGIN_OPTION_SEND_PITCHBEND) != 0)

  1362.                     {

  1363.                         const uint8_t lsb = midiEvent.data[1];

  1364.                         const uint8_t msb = midiEvent.data[2];

  1365. 

  1366.                         fMidiEvents[midiEventCount].type = SND_SEQ_EVENT_PITCHBEND;

  1367.                         fMidiEvents[midiEventCount].data.control.channel = channel;

  1368.                         fMidiEvents[midiEventCount].data.control.value   = ((msb << 7) | lsb) - 8192;

  1369.                     }

  1370.                     else

  1371.                         continue;

  1372. 

  1373.                     midiEventCount += 1;

  1374. 

  1375.                     break;

  1376.                 }

  1377.                 }

  1378.             }

  1379. 

  1380.             kData->postRtEvents.trySplice();

  1381. 

  1382.             if (frames > timeOffset)

  1383.                 processSingle(inBuffer, outBuffer, frames - timeOffset, timeOffset, midiEventCount);

  1384. 

  1385.         } // End of Event Input and Processing

  1386. 

  1387.         // --------------------------------------------------------------------------------------------------------

  1388.         // Plugin processing (no events)

  1389. 

  1390.         else

  1391.         {

  1392.             processSingle(inBuffer, outBuffer, frames, 0, midiEventCount);

  1393. 

  1394.         } // End of Plugin processing (no events)

  1395. 

  1396.         CARLA_PROCESS_CONTINUE_CHECK;

  1397. 

  1398.         // --------------------------------------------------------------------------------------------------------

  1399.         // Control Output

  1400. 

  1401.         if (kData->event.portOut != nullptr)

  1402.         {

  1403.             uint8_t  channel;

  1404.             uint16_t param;

  1405.             float    value;

  1406. 

  1407.             for (k=0; k < kData->param.count; ++k)

  1408.             {

  1409.                 if (kData->param.data[k].type != PARAMETER_OUTPUT)

  1410.                     continue;

  1411. 

  1412.                 kData->param.ranges[k].fixValue(fParamBuffers[k]);

  1413. 

  1414.                 if (kData->param.data[k].midiCC > 0)

  1415.                 {

  1416.                     channel = kData->param.data[k].midiChannel;

  1417.                     param   = static_cast<uint16_t>(kData->param.data[k].midiCC);

  1418.                     value   = kData->param.ranges[k].normalizeValue(fParamBuffers[k]);

  1419.                     kData->event.portOut->writeControlEvent(0, channel, kEngineControlEventTypeParameter, param, value);

  1420.                 }

  1421.             }

  1422. 

  1423.         } // End of Control Output

  1424.     }

  1425. 

  1426.     bool processSingle(float** const inBuffer, float** const outBuffer, const uint32_t frames, const uint32_t timeOffset, const unsigned long midiEventCount)

  1427.     {

  1428.         CARLA_ASSERT(frames > 0);

  1429. 

  1430.         if (frames == 0)

  1431.             return false;

  1432. 

  1433.         if (kData->audioIn.count > 0)

  1434.         {

  1435.             CARLA_ASSERT(inBuffer != nullptr);

  1436.             if (inBuffer == nullptr)

  1437.                 return false;

  1438.         }

  1439.         if (kData->audioOut.count > 0)

  1440.         {

  1441.             CARLA_ASSERT(outBuffer != nullptr);

  1442.             if (outBuffer == nullptr)

  1443.                 return false;

  1444.         }

  1445. 

  1446.         uint32_t i, k;

  1447. 

  1448.         // --------------------------------------------------------------------------------------------------------

  1449.         // Try lock, silence otherwise

  1450. 

  1451.         if (kData->engine->isOffline())

  1452.         {

  1453.             kData->singleMutex.lock();

  1454.         }

  1455.         else if (! kData->singleMutex.tryLock())

  1456.         {

  1457.             for (i=0; i < kData->audioOut.count; ++i)

  1458.             {

  1459.                 for (k=0; k < frames; ++k)

  1460.                     outBuffer[i][k+timeOffset] = 0.0f;

  1461.             }

  1462. 

  1463.             return false;

  1464.         }

  1465. 

  1466.         // --------------------------------------------------------------------------------------------------------

  1467.         // Reset audio buffers

  1468. 

  1469.         for (i=0; i < kData->audioIn.count; ++i)

  1470.             carla_copyFloat(fAudioInBuffers[i], inBuffer[i]+timeOffset, frames);

  1471.         for (i=0; i < kData->audioOut.count; ++i)

  1472.             carla_zeroFloat(fAudioOutBuffers[i], frames);

  1473. 

  1474.         // --------------------------------------------------------------------------------------------------------

  1475.         // Run plugin

  1476. 

  1477.         if (fDssiDescriptor->run_synth != nullptr)

  1478.         {

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

  1480. 

  1481.             if (fHandle2 != nullptr)

  1482.                 fDssiDescriptor->run_synth(fHandle2, frames, fMidiEvents, midiEventCount);

  1483.         }

  1484.         else if (fDssiDescriptor->run_multiple_synths != nullptr)

  1485.         {

  1486.             unsigned long instances = (fHandle2 != nullptr) ? 2 : 1;

  1487.             LADSPA_Handle handlePtr[2] = { fHandle, fHandle2 };

  1488.             snd_seq_event_t* midiEventsPtr[2] = { fMidiEvents, fMidiEvents };

  1489.             unsigned long midiEventCountPtr[2] = { midiEventCount, midiEventCount };

  1490.             fDssiDescriptor->run_multiple_synths(instances, handlePtr, frames, midiEventsPtr, midiEventCountPtr);

  1491.         }

  1492.         else

  1493.         {

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

  1495. 

  1496.             if (fHandle2 != nullptr)

  1497.                 fDescriptor->run(fHandle2, frames);

  1498.         }

  1499. 

  1500. #ifndef BUILD_BRIDGE

  1501.         // --------------------------------------------------------------------------------------------------------

  1502.         // Post-processing (dry/wet, volume and balance)

  1503. 

  1504.         {

  1505.             const bool doDryWet  = (fHints & PLUGIN_CAN_DRYWET) != 0 && kData->postProc.dryWet != 1.0f;

  1506.             const bool doBalance = (fHints & PLUGIN_CAN_BALANCE) != 0 && (kData->postProc.balanceLeft != -1.0f || kData->postProc.balanceRight != 1.0f);

  1507. 

  1508.             bool isPair;

  1509.             float bufValue, oldBufLeft[doBalance ? frames : 1];

  1510. 

  1511.             for (i=0; i < kData->audioOut.count; ++i)

  1512.             {

  1513.                 // Dry/Wet

  1514.                 if (doDryWet)

  1515.                 {

  1516.                     for (k=0; k < frames; ++k)

  1517.                     {

  1518.                         // TODO

  1519.                         //if (k < kData->latency && kData->latency < frames)

  1520.                         //    bufValue = (kData->audioIn.count == 1) ? kData->latencyBuffers[0][k] : kData->latencyBuffers[i][k];

  1521.                         //else

  1522.                         //    bufValue = (kData->audioIn.count == 1) ? inBuffer[0][k-m_latency] : inBuffer[i][k-m_latency];

  1523. 

  1524.                         bufValue = fAudioInBuffers[(kData->audioIn.count == 1) ? 0 : i][k];

  1525.                         fAudioOutBuffers[i][k] = (fAudioOutBuffers[i][k] * kData->postProc.dryWet) + (bufValue * (1.0f - kData->postProc.dryWet));

  1526.                     }

  1527.                 }

  1528. 

  1529.                 // Balance

  1530.                 if (doBalance)

  1531.                 {

  1532.                     isPair = (i % 2 == 0);

  1533. 

  1534.                     if (isPair)

  1535.                     {

  1536.                         CARLA_ASSERT(i+1 < kData->audioOut.count);

  1537.                         carla_copyFloat(oldBufLeft, fAudioOutBuffers[i], frames);

  1538.                     }

  1539. 

  1540.                     float balRangeL = (kData->postProc.balanceLeft  + 1.0f)/2.0f;

  1541.                     float balRangeR = (kData->postProc.balanceRight + 1.0f)/2.0f;

  1542. 

  1543.                     for (k=0; k < frames; ++k)

  1544.                     {

  1545.                         if (isPair)

  1546.                         {

  1547.                             // left

  1548.                             fAudioOutBuffers[i][k]  = oldBufLeft[k]            * (1.0f - balRangeL);

  1549.                             fAudioOutBuffers[i][k] += fAudioOutBuffers[i+1][k] * (1.0f - balRangeR);

  1550.                         }

  1551.                         else

  1552.                         {

  1553.                             // right

  1554.                             fAudioOutBuffers[i][k]  = fAudioOutBuffers[i][k] * balRangeR;

  1555.                             fAudioOutBuffers[i][k] += oldBufLeft[k]          * balRangeL;

  1556.                         }

  1557.                     }

  1558.                 }

  1559. 

  1560.                 // Volume (and buffer copy)

  1561.                 {

  1562.                     for (k=0; k < frames; ++k)

  1563.                         outBuffer[i][k+timeOffset] = fAudioOutBuffers[i][k] * kData->postProc.volume;

  1564.                 }

  1565.             }

  1566. 

  1567. #if 0

  1568.             // Latency, save values for next callback, TODO

  1569.             if (kData->latency > 0 && kData->latency < frames)

  1570.             {

  1571.                 for (i=0; i < kData->audioIn.count; ++i)

  1572.                     carla_copyFloat(kData->latencyBuffers[i], inBuffer[i] + (frames - kData->latency), kData->latency);

  1573.             }

  1574. #endif

  1575.         } // End of Post-processing

  1576. #else

  1577.         for (i=0; i < kData->audioOut.count; ++i)

  1578.         {

  1579.             for (k=0; k < frames; ++k)

  1580.                 outBuffer[i][k+timeOffset] = fAudioOutBuffers[i][k];

  1581.         }

  1582. #endif

  1583. 

  1584.         // --------------------------------------------------------------------------------------------------------

  1585. 

  1586.         kData->singleMutex.unlock();

  1587.         return true;

  1588.     }

  1589. 

  1590.     void bufferSizeChanged(const uint32_t newBufferSize) override

  1591.     {

  1592.         CARLA_ASSERT_INT(newBufferSize > 0, newBufferSize);

  1593.         carla_debug("DssiPlugin::bufferSizeChanged(%i) - start", newBufferSize);

  1594. 

  1595.         for (uint32_t i=0; i < kData->audioIn.count; ++i)

  1596.         {

  1597.             if (fAudioInBuffers[i] != nullptr)

  1598.                 delete[] fAudioInBuffers[i];

  1599.             fAudioInBuffers[i] = new float[newBufferSize];

  1600.         }

  1601. 

  1602.         for (uint32_t i=0; i < kData->audioOut.count; ++i)

  1603.         {

  1604.             if (fAudioOutBuffers[i] != nullptr)

  1605.                 delete[] fAudioOutBuffers[i];

  1606.             fAudioOutBuffers[i] = new float[newBufferSize];

  1607.         }

  1608. 

  1609.         if (fHandle2 == nullptr)

  1610.         {

  1611.             for (uint32_t i=0; i < kData->audioIn.count; ++i)

  1612.             {

  1613.                 CARLA_ASSERT(fAudioInBuffers[i] != nullptr);

  1614.                 fDescriptor->connect_port(fHandle, kData->audioIn.ports[i].rindex, fAudioInBuffers[i]);

  1615.             }

  1616. 

  1617.             for (uint32_t i=0; i < kData->audioOut.count; ++i)

  1618.             {

  1619.                 CARLA_ASSERT(fAudioOutBuffers[i] != nullptr);

  1620.                 fDescriptor->connect_port(fHandle, kData->audioOut.ports[i].rindex, fAudioOutBuffers[i]);

  1621.             }

  1622.         }

  1623.         else

  1624.         {

  1625.             if (kData->audioIn.count > 0)

  1626.             {

  1627.                 CARLA_ASSERT(kData->audioIn.count == 2);

  1628.                 CARLA_ASSERT(fAudioInBuffers[0] != nullptr);

  1629.                 CARLA_ASSERT(fAudioInBuffers[1] != nullptr);

  1630. 

  1631.                 fDescriptor->connect_port(fHandle,  kData->audioIn.ports[0].rindex, fAudioInBuffers[0]);

  1632.                 fDescriptor->connect_port(fHandle2, kData->audioIn.ports[1].rindex, fAudioInBuffers[1]);

  1633.             }

  1634. 

  1635.             if (kData->audioOut.count > 0)

  1636.             {

  1637.                 CARLA_ASSERT(kData->audioOut.count == 2);

  1638.                 CARLA_ASSERT(fAudioOutBuffers[0] != nullptr);

  1639.                 CARLA_ASSERT(fAudioOutBuffers[1] != nullptr);

  1640. 

  1641.                 fDescriptor->connect_port(fHandle,  kData->audioOut.ports[0].rindex, fAudioOutBuffers[0]);

  1642.                 fDescriptor->connect_port(fHandle2, kData->audioOut.ports[1].rindex, fAudioOutBuffers[1]);

  1643.             }

  1644.         }

  1645. 

  1646.         carla_debug("DssiPlugin::bufferSizeChanged(%i) - start", newBufferSize);

  1647.     }

  1648. 

  1649.     void sampleRateChanged(const double newSampleRate) override

  1650.     {

  1651.         CARLA_ASSERT_INT(newSampleRate > 0.0, newSampleRate);

  1652.         carla_debug("DssiPlugin::sampleRateChanged(%g) - start", newSampleRate);

  1653. 

  1654.         // TODO

  1655.         (void)newSampleRate;

  1656. 

  1657.         carla_debug("DssiPlugin::sampleRateChanged(%g) - end", newSampleRate);

  1658.     }

  1659. 

  1660.     // -------------------------------------------------------------------

  1661.     // Plugin buffers

  1662. 

  1663.     void clearBuffers() override

  1664.     {

  1665.         carla_debug("DssiPlugin::clearBuffers() - start");

  1666. 

  1667.         if (fAudioInBuffers != nullptr)

  1668.         {

  1669.             for (uint32_t i=0; i < kData->audioIn.count; ++i)

  1670.             {

  1671.                 if (fAudioInBuffers[i] != nullptr)

  1672.                 {

  1673.                     delete[] fAudioInBuffers[i];

  1674.                     fAudioInBuffers[i] = nullptr;

  1675.                 }

  1676.             }

  1677. 

  1678.             delete[] fAudioInBuffers;

  1679.             fAudioInBuffers = nullptr;

  1680.         }

  1681. 

  1682.         if (fAudioOutBuffers != nullptr)

  1683.         {

  1684.             for (uint32_t i=0; i < kData->audioOut.count; ++i)

  1685.             {

  1686.                 if (fAudioOutBuffers[i] != nullptr)

  1687.                 {

  1688.                     delete[] fAudioOutBuffers[i];

  1689.                     fAudioOutBuffers[i] = nullptr;

  1690.                 }

  1691.             }

  1692. 

  1693.             delete[] fAudioOutBuffers;

  1694.             fAudioOutBuffers = nullptr;

  1695.         }

  1696. 

  1697.         if (fParamBuffers != nullptr)

  1698.         {

  1699.             delete[] fParamBuffers;

  1700.             fParamBuffers = nullptr;

  1701.         }

  1702. 

  1703.         CarlaPlugin::clearBuffers();

  1704. 

  1705.         carla_debug("DssiPlugin::clearBuffers() - end");

  1706.     }

  1707. 

  1708.     // -------------------------------------------------------------------

  1709.     // Post-poned UI Stuff

  1710. 

  1711.     void uiParameterChange(const uint32_t index, const float value) override

  1712.     {

  1713.         CARLA_ASSERT(index < kData->param.count);

  1714. 

  1715.         if (index >= kData->param.count)

  1716.             return;

  1717.         if (kData->osc.data.target == nullptr)

  1718.             return;

  1719. 

  1720.         osc_send_control(&kData->osc.data, kData->param.data[index].rindex, value);

  1721.     }

  1722. 

  1723.     void uiMidiProgramChange(const uint32_t index) override

  1724.     {

  1725.         CARLA_ASSERT(index < kData->midiprog.count);

  1726. 

  1727.         if (index >= kData->midiprog.count)

  1728.             return;

  1729.         if (kData->osc.data.target == nullptr)

  1730.             return;

  1731. 

  1732.         osc_send_program(&kData->osc.data, kData->midiprog.data[index].bank, kData->midiprog.data[index].program);

  1733.     }

  1734. 

  1735.     void uiNoteOn(const uint8_t channel, const uint8_t note, const uint8_t velo) override

  1736.     {

  1737.         CARLA_ASSERT(channel < MAX_MIDI_CHANNELS);

  1738.         CARLA_ASSERT(note < MAX_MIDI_NOTE);

  1739.         CARLA_ASSERT(velo > 0 && velo < MAX_MIDI_VALUE);

  1740. 

  1741.         if (channel >= MAX_MIDI_CHANNELS)

  1742.             return;

  1743.         if (note >= MAX_MIDI_NOTE)

  1744.             return;

  1745.         if (velo >= MAX_MIDI_VALUE)

  1746.             return;

  1747.         if (kData->osc.data.target == nullptr)

  1748.             return;

  1749. 

  1750. #if 0

  1751.         uint8_t midiData[4] = { 0 };

  1752.         midiData[1] = MIDI_STATUS_NOTE_ON + channel;

  1753.         midiData[2] = note;

  1754.         midiData[3] = velo;

  1755. 

  1756.         osc_send_midi(&kData->osc.data, midiData);

  1757. #endif

  1758.     }

  1759. 

  1760.     void uiNoteOff(const uint8_t channel, const uint8_t note) override

  1761.     {

  1762.         CARLA_ASSERT(channel < MAX_MIDI_CHANNELS);

  1763.         CARLA_ASSERT(note < MAX_MIDI_NOTE);

  1764. 

  1765.         if (channel >= MAX_MIDI_CHANNELS)

  1766.             return;

  1767.         if (note >= MAX_MIDI_NOTE)

  1768.             return;

  1769.         if (kData->osc.data.target == nullptr)

  1770.             return;

  1771. 

  1772. #if 0

  1773.         uint8_t midiData[4] = { 0 };

  1774.         midiData[1] = MIDI_STATUS_NOTE_OFF + channel;

  1775.         midiData[2] = note;

  1776. 

  1777.         osc_send_midi(&kData->osc.data, midiData);

  1778. #endif

  1779.     }

  1780. 

  1781.     // -------------------------------------------------------------------

  1782. 

  1783.     const void* getExtraStuff() const override

  1784.     {

  1785.         return fGuiFilename.isNotEmpty() ? (const char*)fGuiFilename : nullptr;

  1786.     }

  1787. 

  1788.     bool init(const char* const filename, const char* const name, const char* const label, const char* const guiFilename)

  1789.     {

  1790.         CARLA_ASSERT(kData->engine != nullptr);

  1791.         CARLA_ASSERT(kData->client == nullptr);

  1792.         CARLA_ASSERT(filename != nullptr);

  1793.         CARLA_ASSERT(label != nullptr);

  1794. 

  1795.         // ---------------------------------------------------------------

  1796.         // first checks

  1797. 

  1798.         if (kData->engine == nullptr)

  1799.         {

  1800.             return false;

  1801.         }

  1802. 

  1803.         if (kData->client != nullptr)

  1804.         {

  1805.             kData->engine->setLastError("Plugin client is already registered");

  1806.             return false;

  1807.         }

  1808. 

  1809.         if (filename == nullptr)

  1810.         {

  1811.             kData->engine->setLastError("null filename");

  1812.             return false;

  1813.         }

  1814. 

  1815.         if (label == nullptr)

  1816.         {

  1817.             kData->engine->setLastError("null label");

  1818.             return false;

  1819.         }

  1820. 

  1821.         // ---------------------------------------------------------------

  1822.         // open DLL

  1823. 

  1824.         if (! kData->libOpen(filename))

  1825.         {

  1826.             kData->engine->setLastError(kData->libError(filename));

  1827.             return false;

  1828.         }

  1829. 

  1830.         // ---------------------------------------------------------------

  1831.         // get DLL main entry

  1832. 

  1833.         const DSSI_Descriptor_Function descFn = (DSSI_Descriptor_Function)kData->libSymbol("dssi_descriptor");

  1834. 

  1835.         if (descFn == nullptr)

  1836.         {

  1837.             kData->engine->setLastError("Could not find the DSSI Descriptor in the plugin library");

  1838.             return false;

  1839.         }

  1840. 

  1841.         // ---------------------------------------------------------------

  1842.         // get descriptor that matches label

  1843. 

  1844.         unsigned long i = 0;

  1845.         while ((fDssiDescriptor = descFn(i++)) != nullptr)

  1846.         {

  1847.             fDescriptor = fDssiDescriptor->LADSPA_Plugin;

  1848.             if (fDescriptor != nullptr && fDescriptor->Label != nullptr && std::strcmp(fDescriptor->Label, label) == 0)

  1849.                 break;

  1850.         }

  1851. 

  1852.         if (fDescriptor == nullptr || fDssiDescriptor == nullptr)

  1853.         {

  1854.             kData->engine->setLastError("Could not find the requested plugin label in the plugin library");

  1855.             return false;

  1856.         }

  1857. 

  1858.         // ---------------------------------------------------------------

  1859.         // get info

  1860. 

  1861.         if (name != nullptr)

  1862.             fName = kData->engine->getUniquePluginName(name);

  1863.         else if (fDescriptor->Name != nullptr)

  1864.             fName = kData->engine->getUniquePluginName(fDescriptor->Name);

  1865.         else

  1866.             fName = kData->engine->getUniquePluginName(fDescriptor->Label);

  1867. 

  1868.         fFilename = filename;

  1869. 

  1870.         // ---------------------------------------------------------------

  1871.         // register client

  1872. 

  1873.         kData->client = kData->engine->addClient(this);

  1874. 

  1875.         if (kData->client == nullptr || ! kData->client->isOk())

  1876.         {

  1877.             kData->engine->setLastError("Failed to register plugin client");

  1878.             return false;

  1879.         }

  1880. 

  1881.         // ---------------------------------------------------------------

  1882.         // initialize plugin

  1883. 

  1884.         fHandle = fDescriptor->instantiate(fDescriptor, (unsigned long)kData->engine->getSampleRate());

  1885. 

  1886.         if (fHandle == nullptr)

  1887.         {

  1888.             kData->engine->setLastError("Plugin failed to initialize");

  1889.             return false;

  1890.         }

  1891. 

  1892.         // ---------------------------------------------------------------

  1893.         // gui stuff

  1894. 

  1895.         if (guiFilename != nullptr)

  1896.         {

  1897.             fGuiFilename = guiFilename;

  1898.             kData->osc.thread.setOscData(guiFilename, fDescriptor->Label);

  1899.         }

  1900. 

  1901.         // ---------------------------------------------------------------

  1902.         // load plugin settings

  1903. 

  1904.         {

  1905. #ifdef __USE_GNU

  1906.             const bool isDssiVst = fFilename.contains("dssi-vst", true);

  1907. #else

  1908.             const bool isDssiVst = fFilename.contains("dssi-vst");

  1909. #endif

  1910. 

  1911.             // set default options

  1912.             fOptions = 0x0;

  1913. 

  1914.             fOptions |= PLUGIN_OPTION_MAP_PROGRAM_CHANGES;

  1915. 

  1916.             if (kData->engine->getOptions().forceStereo)

  1917.                 fOptions |= PLUGIN_OPTION_FORCE_STEREO;

  1918. 

  1919.             if (isDssiVst)

  1920.             {

  1921.                 fOptions |= PLUGIN_OPTION_FIXED_BUFFER;

  1922. 

  1923.                 if (kData->engine->getOptions().useDssiVstChunks && fDssiDescriptor->get_custom_data != nullptr && fDssiDescriptor->set_custom_data != nullptr)

  1924.                     fOptions |= PLUGIN_OPTION_USE_CHUNKS;

  1925.             }

  1926. 

  1927.             if (fDssiDescriptor->run_synth != nullptr || fDssiDescriptor->run_multiple_synths != nullptr)

  1928.             {

  1929.                 fOptions |= PLUGIN_OPTION_SEND_CHANNEL_PRESSURE;

  1930.                 fOptions |= PLUGIN_OPTION_SEND_NOTE_AFTERTOUCH;

  1931.                 fOptions |= PLUGIN_OPTION_SEND_PITCHBEND;

  1932.                 fOptions |= PLUGIN_OPTION_SEND_ALL_SOUND_OFF;

  1933. 

  1934.                 if (fDssiDescriptor->run_synth == nullptr)

  1935.                     carla_stderr2("Plugin can ONLY use run_multiple_synths!");

  1936.             }

  1937. 

  1938.             // load settings

  1939.             kData->idStr  = "DSSI/";

  1940.             kData->idStr += std::strrchr(filename, OS_SEP)+1;

  1941.             kData->idStr += "/";

  1942.             kData->idStr += label;

  1943.             fOptions = kData->loadSettings(fOptions, availableOptions());

  1944. 

  1945.             // ignore settings, we need this anyway

  1946.             if (isDssiVst)

  1947.                 fOptions |= PLUGIN_OPTION_FIXED_BUFFER;

  1948.         }

  1949. 

  1950.         return true;

  1951.     }

  1952. 

  1953. private:

  1954.     LADSPA_Handle fHandle;

  1955.     LADSPA_Handle fHandle2;

  1956.     const LADSPA_Descriptor* fDescriptor;

  1957.     const DSSI_Descriptor*   fDssiDescriptor;

  1958. 

  1959.     CarlaString fGuiFilename;

  1960. 

  1961.     float** fAudioInBuffers;

  1962.     float** fAudioOutBuffers;

  1963.     float*  fParamBuffers;

  1964.     snd_seq_event_t fMidiEvents[MAX_MIDI_EVENTS];

  1965. 

  1966.     CARLA_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR(DssiPlugin)

  1967. };

  1968. 

  1969. CARLA_BACKEND_END_NAMESPACE

  1970. 

  1971. #else // WANT_DSSI

  1972. # warning Building without DSSI support

  1973. #endif

  1974. 

  1975. CARLA_BACKEND_START_NAMESPACE

  1976. 

  1977. CarlaPlugin* CarlaPlugin::newDSSI(const Initializer& init, const char* const guiFilename)

  1978. {

  1979.     carla_debug("CarlaPlugin::newDSSI({%p, \"%s\", \"%s\", \"%s\"}, \"%s\")", init.engine, init.filename, init.name, init.label, guiFilename);

  1980. 

  1981. #ifdef WANT_DSSI

  1982.     DssiPlugin* const plugin(new DssiPlugin(init.engine, init.id));

  1983. 

  1984.     if (! plugin->init(init.filename, init.name, init.label, guiFilename))

  1985.     {

  1986.         delete plugin;

  1987.         return nullptr;

  1988.     }

  1989. 

  1990.     plugin->reload();

  1991. 

  1992.     if (init.engine->getProccessMode() == PROCESS_MODE_CONTINUOUS_RACK && ! CarlaPluginProtectedData::canRunInRack(plugin))

  1993.     {

  1994.         init.engine->setLastError("Carla's rack mode can only work with Mono or Stereo DSSI plugins, sorry!");

  1995.         delete plugin;

  1996.         return nullptr;

  1997.     }

  1998. 

  1999.     return plugin;

  2000. #else

  2001.     init.engine->setLastError("DSSI support not available");

  2002.     return nullptr;

  2003. #endif

  2004. }

  2005. 

  2006. CARLA_BACKEND_END_NAMESPACE