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Carla/source/backend/plugin/DssiPlugin.cpp

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  1. /*

  2.  * Carla DSSI Plugin

  3.  * Copyright (C) 2011-2014 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 doc/GPL.txt file.

  16.  */

  17. 

  18. #include "CarlaPluginInternal.hpp"

  19. #include "CarlaEngine.hpp"

  20. 

  21. #ifdef WANT_DSSI

  22. 

  23. #include "CarlaDssiUtils.hpp"

  24. #include "CarlaMathUtils.hpp"

  25. #include "CarlaPluginUi.hpp"

  26. #include "CarlaHost.h"

  27. 

  28. #include <QtCore/QByteArray>

  29. #include <QtCore/QString>

  30. 

  31. CARLA_BACKEND_START_NAMESPACE

  32. 

  33. #if 0

  34. }

  35. #endif

  36. 

  37. class DssiPlugin : public CarlaPlugin

  38. {

  39. public:

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

  41.         : CarlaPlugin(engine, id),

  42.           fHandle(nullptr),

  43.           fHandle2(nullptr),

  44.           fDescriptor(nullptr),

  45.           fDssiDescriptor(nullptr),

  46.           fUsesCustomData(false),

  47.           fUiFilename(nullptr),

  48.           fAudioInBuffers(nullptr),

  49.           fAudioOutBuffers(nullptr),

  50.           fParamBuffers(nullptr),

  51.           fTransientTryCounter(0)

  52.     {

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

  54. 

  55.         pData->osc.thread.setMode(CarlaPluginThread::PLUGIN_THREAD_DSSI_GUI);

  56.     }

  57. 

  58.     ~DssiPlugin() override

  59.     {

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

  61. 

  62.         // close UI

  63.         if (pData->hints & PLUGIN_HAS_CUSTOM_UI)

  64.         {

  65.             showCustomUI(false);

  66. 

  67.             pData->osc.thread.stop(static_cast<int>(pData->engine->getOptions().uiBridgesTimeout * 2));

  68.         }

  69. 

  70.         pData->singleMutex.lock();

  71.         pData->masterMutex.lock();

  72. 

  73.         if (pData->client != nullptr && pData->client->isActive())

  74.             pData->client->deactivate();

  75. 

  76.         if (pData->active)

  77.         {

  78.             deactivate();

  79.             pData->active = false;

  80.         }

  81. 

  82.         if (fDescriptor != nullptr)

  83.         {

  84.             if (pData->name != nullptr && fDssiDescriptor != nullptr && fDssiDescriptor->run_synth == nullptr && fDssiDescriptor->run_multiple_synths != nullptr)

  85.                 removeUniqueMultiSynth(fDescriptor->Label);

  86. 

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

  88.             {

  89.                 if (fHandle != nullptr)

  90.                     fDescriptor->cleanup(fHandle);

  91.                 if (fHandle2 != nullptr)

  92.                     fDescriptor->cleanup(fHandle2);

  93.             }

  94. 

  95.             fHandle  = nullptr;

  96.             fHandle2 = nullptr;

  97.             fDescriptor = nullptr;

  98.             fDssiDescriptor = nullptr;

  99.         }

  100. 

  101.         if (fUiFilename != nullptr)

  102.         {

  103.             delete[] fUiFilename;

  104.             fUiFilename = nullptr;

  105.         }

  106. 

  107.         clearBuffers();

  108.     }

  109. 

  110.     // -------------------------------------------------------------------

  111.     // Information (base)

  112. 

  113.     PluginType getType() const noexcept override

  114.     {

  115.         return PLUGIN_DSSI;

  116.     }

  117. 

  118.     PluginCategory getCategory() const noexcept override

  119.     {

  120.         CARLA_SAFE_ASSERT_RETURN(fDssiDescriptor != nullptr, PLUGIN_CATEGORY_NONE);

  121. 

  122.         if (pData->audioIn.count == 0 && pData->audioOut.count > 0 && (fDssiDescriptor->run_synth != nullptr || fDssiDescriptor->run_multiple_synths != nullptr))

  123.             return PLUGIN_CATEGORY_SYNTH;

  124. 

  125.         return CarlaPlugin::getCategory();

  126.     }

  127. 

  128.     long getUniqueId() const noexcept override

  129.     {

  130.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr, 0);

  131. 

  132.         return static_cast<long>(fDescriptor->UniqueID);

  133.     }

  134. 

  135.     // -------------------------------------------------------------------

  136.     // Information (count)

  137. 

  138.     // nothing

  139. 

  140.     // -------------------------------------------------------------------

  141.     // Information (current data)

  142. 

  143.     int32_t getChunkData(void** const dataPtr) const noexcept override

  144.     {

  145.         CARLA_SAFE_ASSERT_RETURN(fUsesCustomData, 0);

  146.         CARLA_SAFE_ASSERT_RETURN(pData->options & PLUGIN_OPTION_USE_CHUNKS, 0);

  147.         CARLA_SAFE_ASSERT_RETURN(fDssiDescriptor != nullptr, 0);

  148.         CARLA_SAFE_ASSERT_RETURN(fDssiDescriptor->get_custom_data != nullptr, 0);

  149.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr, 0);

  150.         CARLA_SAFE_ASSERT_RETURN(fHandle2 == nullptr, 0);

  151.         CARLA_SAFE_ASSERT_RETURN(dataPtr != nullptr, 0);

  152. 

  153.         int ret = 0;

  154.         unsigned long dataSize = 0;

  155. 

  156.         try {

  157.             ret = fDssiDescriptor->get_custom_data(fHandle, dataPtr, &dataSize);

  158.         } catch(...) {}

  159. 

  160.         return (ret != 0) ? static_cast<int32_t>(dataSize) : 0;

  161.     }

  162. 

  163.     // -------------------------------------------------------------------

  164.     // Information (per-plugin data)

  165. 

  166.     unsigned int getOptionsAvailable() const noexcept override

  167.     {

  168. #ifdef __USE_GNU

  169.         const bool isAmSynth(strcasestr(pData->filename, "amsynth"));

  170.         const bool isDssiVst(strcasestr(pData->filename, "dssi-vst"));

  171. #else

  172.         const bool isAmSynth(std::strstr(pData->filename, "amsynth"));

  173.         const bool isDssiVst(std::strstr(pData->filename, "dssi-vst"));

  174. #endif

  175. 

  176.         unsigned int options = 0x0;

  177. 

  178.         options |= PLUGIN_OPTION_MAP_PROGRAM_CHANGES;

  179. 

  180.         if (! (isAmSynth || isDssiVst))

  181.         {

  182.             options |= PLUGIN_OPTION_FIXED_BUFFERS;

  183. 

  184.             if (pData->engine->getProccessMode() != ENGINE_PROCESS_MODE_CONTINUOUS_RACK)

  185.             {

  186.                 if (pData->options & PLUGIN_OPTION_FORCE_STEREO)

  187.                     options |= PLUGIN_OPTION_FORCE_STEREO;

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

  189.                     options |= PLUGIN_OPTION_FORCE_STEREO;

  190.             }

  191.         }

  192. 

  193.         if (fUsesCustomData)

  194.             options |= PLUGIN_OPTION_USE_CHUNKS;

  195. 

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

  197.         {

  198.             options |= PLUGIN_OPTION_SEND_CONTROL_CHANGES;

  199.             options |= PLUGIN_OPTION_SEND_CHANNEL_PRESSURE;

  200.             options |= PLUGIN_OPTION_SEND_NOTE_AFTERTOUCH;

  201.             options |= PLUGIN_OPTION_SEND_PITCHBEND;

  202.             options |= PLUGIN_OPTION_SEND_ALL_SOUND_OFF;

  203.         }

  204. 

  205.         return options;

  206.     }

  207. 

  208.     float getParameterValue(const uint32_t parameterId) const noexcept override

  209.     {

  210.         CARLA_SAFE_ASSERT_RETURN(fParamBuffers != nullptr, 0.0f);

  211.         CARLA_SAFE_ASSERT_RETURN(parameterId < pData->param.count, 0.0f);

  212. 

  213.         return fParamBuffers[parameterId];

  214.     }

  215. 

  216.     void getLabel(char* const strBuf) const noexcept override

  217.     {

  218.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  219. 

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

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

  222.         else

  223.             CarlaPlugin::getLabel(strBuf);

  224.     }

  225. 

  226.     void getMaker(char* const strBuf) const noexcept override

  227.     {

  228.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  229. 

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

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

  232.         else

  233.             CarlaPlugin::getMaker(strBuf);

  234.     }

  235. 

  236.     void getCopyright(char* const strBuf) const noexcept override

  237.     {

  238.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  239. 

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

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

  242.         else

  243.             CarlaPlugin::getCopyright(strBuf);

  244.     }

  245. 

  246.     void getRealName(char* const strBuf) const noexcept override

  247.     {

  248.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  249. 

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

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

  252.         else

  253.             CarlaPlugin::getRealName(strBuf);

  254.     }

  255. 

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

  257.     {

  258.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  259.         CARLA_SAFE_ASSERT_RETURN(parameterId < pData->param.count,);

  260. 

  261.         const int32_t rindex(pData->param.data[parameterId].rindex);

  262. 

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

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

  265.         else

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

  267.     }

  268. 

  269.     // -------------------------------------------------------------------

  270.     // Set data (state)

  271. 

  272.     // nothing

  273. 

  274.     // -------------------------------------------------------------------

  275.     // Set data (internal stuff)

  276. 

  277.     // nothing

  278. 

  279.     // -------------------------------------------------------------------

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

  281. 

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

  283.     {

  284.         CARLA_SAFE_ASSERT_RETURN(fParamBuffers != nullptr,);

  285.         CARLA_SAFE_ASSERT_RETURN(parameterId < pData->param.count,);

  286. 

  287.         const float fixedValue(pData->param.getFixedValue(parameterId, value));

  288.         fParamBuffers[parameterId] = fixedValue;

  289. 

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

  291.     }

  292. 

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

  294.     {

  295.         CARLA_SAFE_ASSERT_RETURN(fDssiDescriptor != nullptr,);

  296.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

  297.         CARLA_SAFE_ASSERT_RETURN(type != nullptr && type[0] != '\0',);

  298.         CARLA_SAFE_ASSERT_RETURN(key != nullptr && key[0] != '\0',);

  299.         CARLA_SAFE_ASSERT_RETURN(value != nullptr,);

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

  301. 

  302.         if (std::strcmp(type, CUSTOM_DATA_TYPE_STRING) != 0)

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

  304. 

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

  306.         {

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

  308. 

  309.             if (fHandle2 != nullptr)

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

  311.         }

  312. 

  313.         if (sendGui && pData->osc.data.target != nullptr)

  314.             osc_send_configure(pData->osc.data, key, value);

  315. 

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

  317.         {

  318.             const ScopedSingleProcessLocker spl(this, true);

  319.             reloadPrograms(false);

  320.         }

  321. 

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

  323.     }

  324. 

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

  326.     {

  327.         CARLA_SAFE_ASSERT_RETURN(fUsesCustomData,);

  328.         CARLA_SAFE_ASSERT_RETURN(pData->options & PLUGIN_OPTION_USE_CHUNKS,);

  329.         CARLA_SAFE_ASSERT_RETURN(fDssiDescriptor != nullptr,);

  330.         CARLA_SAFE_ASSERT_RETURN(fDssiDescriptor->set_custom_data != nullptr,);

  331.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

  332.         CARLA_SAFE_ASSERT_RETURN(fHandle2 == nullptr,);

  333.         CARLA_SAFE_ASSERT_RETURN(stringData != nullptr,);

  334. 

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

  336. 

  337.         CARLA_SAFE_ASSERT_RETURN(chunk.size() > 0,);

  338. 

  339.         const ScopedSingleProcessLocker spl(this, true);

  340.         fDssiDescriptor->set_custom_data(fHandle, chunk.data(), static_cast<ulong>(chunk.size()));

  341.     }

  342. 

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

  344.     {

  345.         CARLA_SAFE_ASSERT_RETURN(fDssiDescriptor != nullptr,);

  346.         CARLA_SAFE_ASSERT_RETURN(fDssiDescriptor->select_program != nullptr,);

  347.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

  348.         CARLA_SAFE_ASSERT_RETURN(index >= -1 && index < static_cast<int32_t>(pData->midiprog.count),);

  349. 

  350.         if (index >= 0)

  351.         {

  352.             const uint32_t bank    = pData->midiprog.data[index].bank;

  353.             const uint32_t program = pData->midiprog.data[index].program;

  354. 

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

  356. 

  357.             try {

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

  359.             } catch(...) {}

  360. 

  361.             if (fHandle2 != nullptr)

  362.             {

  363.                 try {

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

  365.                 } catch(...) {}

  366.             }

  367.         }

  368. 

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

  370.     }

  371. 

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

  373.     // Set ui stuff

  374. 

  375.     void showCustomUI(const bool yesNo) override

  376.     {

  377.         if (yesNo)

  378.         {

  379.             pData->osc.data.free();

  380.             pData->osc.thread.start();

  381.         }

  382.         else

  383.         {

  384.             fTransientTryCounter = 0;

  385. 

  386.             if (pData->osc.data.target != nullptr)

  387.             {

  388.                 osc_send_hide(pData->osc.data);

  389.                 osc_send_quit(pData->osc.data);

  390.                 pData->osc.data.free();

  391.             }

  392. 

  393.             pData->osc.thread.stop(static_cast<int>(pData->engine->getOptions().uiBridgesTimeout * 2));

  394.         }

  395.     }

  396. 

  397.     void idle() override

  398.     {

  399.         CarlaPlugin::idle();

  400. 

  401.         if (fTransientTryCounter == 0)

  402.             return;

  403.         if (++fTransientTryCounter % 10 != 0)

  404.             return;

  405.         if (fTransientTryCounter >= 200)

  406.             return;

  407. 

  408.         carla_stdout("Trying to get window...");

  409. 

  410.         QString uiTitle(QString("%1 (GUI)").arg(pData->name));

  411.         if (CarlaPluginUi::tryTransientWinIdMatch(pData->osc.thread.getPid(), uiTitle.toUtf8().constData(), carla_standalone_get_transient_win_id()))

  412.             fTransientTryCounter = 0;

  413.     }

  414. 

  415.     // -------------------------------------------------------------------

  416.     // Plugin state

  417. 

  418.     void reload() override

  419.     {

  420.         CARLA_SAFE_ASSERT_RETURN(pData->engine != nullptr,);

  421.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  422.         CARLA_SAFE_ASSERT_RETURN(fDssiDescriptor != nullptr,);

  423.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

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

  425. 

  426.         const EngineProcessMode processMode(pData->engine->getProccessMode());

  427. 

  428.         // Safely disable plugin for reload

  429.         const ScopedDisabler sd(this);

  430. 

  431.         if (pData->active)

  432.             deactivate();

  433. 

  434.         clearBuffers();

  435. 

  436.         const float sampleRate(static_cast<float>(pData->engine->getSampleRate()));

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

  438. 

  439.         uint32_t aIns, aOuts, mIns, params;

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

  441. 

  442.         bool forcedStereoIn, forcedStereoOut;

  443.         forcedStereoIn = forcedStereoOut = false;

  444. 

  445.         bool needsCtrlIn, needsCtrlOut;

  446.         needsCtrlIn = needsCtrlOut = false;

  447. 

  448.         if (portCount > 0)

  449.         {

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

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

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

  453. 

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

  455.             {

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

  457. 

  458.                 if (LADSPA_IS_PORT_AUDIO(portType))

  459.                 {

  460.                     if (LADSPA_IS_PORT_INPUT(portType))

  461.                         aIns += 1;

  462.                     else if (LADSPA_IS_PORT_OUTPUT(portType))

  463.                         aOuts += 1;

  464.                 }

  465.                 else if (LADSPA_IS_PORT_CONTROL(portType))

  466.                     params += 1;

  467.             }

  468.         }

  469. 

  470.         if ((pData->options & PLUGIN_OPTION_FORCE_STEREO) != 0 && (aIns == 1 || aOuts == 1))

  471.         {

  472.             if (fHandle2 == nullptr)

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

  474. 

  475.             if (fHandle2 != nullptr)

  476.             {

  477.                 if (aIns == 1)

  478.                 {

  479.                     aIns = 2;

  480.                     forcedStereoIn = true;

  481.                 }

  482. 

  483.                 if (aOuts == 1)

  484.                 {

  485.                     aOuts = 2;

  486.                     forcedStereoOut = true;

  487.                 }

  488.             }

  489.         }

  490. 

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

  492.         {

  493.             mIns = 1;

  494.             needsCtrlIn = true;

  495.         }

  496. 

  497.         if (aIns > 0)

  498.         {

  499.             pData->audioIn.createNew(aIns);

  500.             fAudioInBuffers = new float*[aIns];

  501. 

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

  503.                 fAudioInBuffers[i] = nullptr;

  504.         }

  505. 

  506.         if (aOuts > 0)

  507.         {

  508.             pData->audioOut.createNew(aOuts);

  509.             fAudioOutBuffers = new float*[aOuts];

  510.             needsCtrlIn = true;

  511. 

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

  513.                 fAudioOutBuffers[i] = nullptr;

  514.         }

  515. 

  516.         if (params > 0)

  517.         {

  518.             pData->param.createNew(params, true);

  519. 

  520.             fParamBuffers = new float[params];

  521.             FLOAT_CLEAR(fParamBuffers, params);

  522.         }

  523. 

  524.         const uint portNameSize(pData->engine->getMaxPortNameSize());

  525.         CarlaString portName;

  526. 

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

  528.         {

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

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

  531. 

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

  533. 

  534.             if (LADSPA_IS_PORT_AUDIO(portType))

  535.             {

  536.                 portName.clear();

  537. 

  538.                 if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  539.                 {

  540.                     portName  = pData->name;

  541.                     portName += ":";

  542.                 }

  543. 

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

  545.                 portName.truncate(portNameSize);

  546. 

  547.                 if (LADSPA_IS_PORT_INPUT(portType))

  548.                 {

  549.                     uint32_t j = iAudioIn++;

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

  551.                     pData->audioIn.ports[j].rindex = i;

  552. 

  553.                     if (forcedStereoIn)

  554.                     {

  555.                         portName += "_2";

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

  557.                         pData->audioIn.ports[1].rindex = i;

  558.                     }

  559.                 }

  560.                 else if (LADSPA_IS_PORT_OUTPUT(portType))

  561.                 {

  562.                     uint32_t j = iAudioOut++;

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

  564.                     pData->audioOut.ports[j].rindex = i;

  565. 

  566.                     if (forcedStereoOut)

  567.                     {

  568.                         portName += "_2";

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

  570.                         pData->audioOut.ports[1].rindex = i;

  571.                     }

  572.                 }

  573.                 else

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

  575.             }

  576.             else if (LADSPA_IS_PORT_CONTROL(portType))

  577.             {

  578.                 uint32_t j = iCtrl++;

  579.                 pData->param.data[j].hints  = 0x0;

  580.                 pData->param.data[j].index  = static_cast<int32_t>(j);

  581.                 pData->param.data[j].rindex = static_cast<int32_t>(i);

  582.                 pData->param.data[j].midiCC = -1;

  583.                 pData->param.data[j].midiChannel = 0;

  584.                 pData->param.special[j] = PARAMETER_SPECIAL_NULL;

  585. 

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

  587. 

  588.                 // min value

  589.                 if (LADSPA_IS_HINT_BOUNDED_BELOW(portRangeHints.HintDescriptor))

  590.                     min = portRangeHints.LowerBound;

  591.                 else

  592.                     min = 0.0f;

  593. 

  594.                 // max value

  595.                 if (LADSPA_IS_HINT_BOUNDED_ABOVE(portRangeHints.HintDescriptor))

  596.                     max = portRangeHints.UpperBound;

  597.                 else

  598.                     max = 1.0f;

  599. 

  600.                 if (min > max)

  601.                     max = min;

  602. 

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

  604.                 {

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

  606.                     max = min + 0.1f;

  607.                 }

  608. 

  609.                 // default value

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

  611. 

  612.                 if (def < min)

  613.                     def = min;

  614.                 else if (def > max)

  615.                     def = max;

  616. 

  617.                 if (LADSPA_IS_HINT_SAMPLE_RATE(portRangeHints.HintDescriptor))

  618.                 {

  619.                     min *= sampleRate;

  620.                     max *= sampleRate;

  621.                     def *= sampleRate;

  622.                     pData->param.data[j].hints |= PARAMETER_USES_SAMPLERATE;

  623.                 }

  624. 

  625.                 if (LADSPA_IS_HINT_TOGGLED(portRangeHints.HintDescriptor))

  626.                 {

  627.                     step = max - min;

  628.                     stepSmall = step;

  629.                     stepLarge = step;

  630.                     pData->param.data[j].hints |= PARAMETER_IS_BOOLEAN;

  631.                 }

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

  633.                 {

  634.                     step = 1.0f;

  635.                     stepSmall = 1.0f;

  636.                     stepLarge = 10.0f;

  637.                     pData->param.data[j].hints |= PARAMETER_IS_INTEGER;

  638.                 }

  639.                 else

  640.                 {

  641.                     float range = max - min;

  642.                     step = range/100.0f;

  643.                     stepSmall = range/1000.0f;

  644.                     stepLarge = range/10.0f;

  645.                 }

  646. 

  647.                 if (LADSPA_IS_PORT_INPUT(portType))

  648.                 {

  649.                     pData->param.data[j].type   = PARAMETER_INPUT;

  650.                     pData->param.data[j].hints |= PARAMETER_IS_ENABLED;

  651.                     pData->param.data[j].hints |= PARAMETER_IS_AUTOMABLE;

  652.                     needsCtrlIn = true;

  653. 

  654.                     // MIDI CC value

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

  656.                     {

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

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

  659.                         {

  660.                             int16_t cc = DSSI_CC_NUMBER(controller);

  661.                             if (! MIDI_IS_CONTROL_BANK_SELECT(cc))

  662.                                 pData->param.data[j].midiCC = cc;

  663.                         }

  664.                     }

  665.                 }

  666.                 else if (LADSPA_IS_PORT_OUTPUT(portType))

  667.                 {

  668.                     pData->param.data[j].type = PARAMETER_OUTPUT;

  669. 

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

  671.                     {

  672.                         min = 0.0f;

  673.                         max = sampleRate;

  674.                         def = 0.0f;

  675.                         step = 1.0f;

  676.                         stepSmall = 1.0f;

  677.                         stepLarge = 1.0f;

  678.                         pData->param.special[j] = PARAMETER_SPECIAL_LATENCY;

  679.                     }

  680.                     else

  681.                     {

  682.                         pData->param.data[j].hints |= PARAMETER_IS_ENABLED;

  683.                         pData->param.data[j].hints |= PARAMETER_IS_AUTOMABLE;

  684.                         needsCtrlOut = true;

  685.                     }

  686.                 }

  687.                 else

  688.                 {

  689.                     pData->param.data[j].type = PARAMETER_UNKNOWN;

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

  691.                 }

  692. 

  693.                 // extra parameter hints

  694.                 if (LADSPA_IS_HINT_LOGARITHMIC(portRangeHints.HintDescriptor))

  695.                     pData->param.data[j].hints |= PARAMETER_IS_LOGARITHMIC;

  696. 

  697.                 pData->param.ranges[j].min = min;

  698.                 pData->param.ranges[j].max = max;

  699.                 pData->param.ranges[j].def = def;

  700.                 pData->param.ranges[j].step = step;

  701.                 pData->param.ranges[j].stepSmall = stepSmall;

  702.                 pData->param.ranges[j].stepLarge = stepLarge;

  703. 

  704.                 // Start parameters in their default values

  705.                 fParamBuffers[j] = def;

  706. 

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

  708. 

  709.                 if (fHandle2 != nullptr)

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

  711.             }

  712.             else

  713.             {

  714.                 // Not Audio or Control

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

  716. 

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

  718. 

  719.                 if (fHandle2 != nullptr)

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

  721.             }

  722.         }

  723. 

  724.         if (needsCtrlIn)

  725.         {

  726.             portName.clear();

  727. 

  728.             if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  729.             {

  730.                 portName  = pData->name;

  731.                 portName += ":";

  732.             }

  733. 

  734.             portName += "events-in";

  735.             portName.truncate(portNameSize);

  736. 

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

  738.         }

  739. 

  740.         if (needsCtrlOut)

  741.         {

  742.             portName.clear();

  743. 

  744.             if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  745.             {

  746.                 portName  = pData->name;

  747.                 portName += ":";

  748.             }

  749. 

  750.             portName += "events-out";

  751.             portName.truncate(portNameSize);

  752. 

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

  754.         }

  755. 

  756.         if (forcedStereoIn || forcedStereoOut)

  757.             pData->options |= PLUGIN_OPTION_FORCE_STEREO;

  758.         else

  759.             pData->options &= ~PLUGIN_OPTION_FORCE_STEREO;

  760. 

  761.         // plugin hints

  762.         pData->hints = 0x0;

  763. 

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

  765.             pData->hints |= PLUGIN_IS_RTSAFE;

  766. 

  767.         if (fUiFilename != nullptr)

  768.             pData->hints |= PLUGIN_HAS_CUSTOM_UI;

  769. 

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

  771.             pData->hints |= PLUGIN_CAN_DRYWET;

  772. 

  773.         if (aOuts > 0)

  774.             pData->hints |= PLUGIN_CAN_VOLUME;

  775. 

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

  777.             pData->hints |= PLUGIN_CAN_BALANCE;

  778. 

  779.         // extra plugin hints

  780.         pData->extraHints = 0x0;

  781. 

  782.         if (mIns > 0)

  783.             pData->extraHints |= PLUGIN_EXTRA_HINT_HAS_MIDI_IN;

  784. 

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

  786.             pData->extraHints |= PLUGIN_EXTRA_HINT_CAN_RUN_RACK;

  787. 

  788.         // check latency

  789.         if (pData->hints & PLUGIN_CAN_DRYWET)

  790.         {

  791.             for (uint32_t i=0; i < pData->param.count; ++i)

  792.             {

  793.                 if (pData->param.special[i] != PARAMETER_SPECIAL_LATENCY)

  794.                    continue;

  795. 

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

  797. 

  798.                 float tmpIn[aIns][2];

  799.                 float tmpOut[aOuts][2];

  800. 

  801.                 for (uint32_t j=0; j < aIns; ++j)

  802.                 {

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

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

  805. 

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

  807.                 }

  808. 

  809.                 for (uint32_t j=0; j < aOuts; ++j)

  810.                 {

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

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

  813. 

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

  815.                 }

  816. 

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

  818.                     fDescriptor->activate(fHandle);

  819. 

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

  821. 

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

  823.                     fDescriptor->deactivate(fHandle);

  824. 

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

  826. 

  827.                 if (pData->latency != latency)

  828.                 {

  829.                     pData->latency = latency;

  830.                     pData->client->setLatency(latency);

  831.                     pData->recreateLatencyBuffers();

  832.                 }

  833. 

  834.                 break;

  835.             }

  836.         }

  837. 

  838.         bufferSizeChanged(pData->engine->getBufferSize());

  839.         reloadPrograms(true);

  840. 

  841.         if (pData->active)

  842.             activate();

  843. 

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

  845.     }

  846. 

  847.     void reloadPrograms(const bool doInit) override

  848.     {

  849.         carla_debug("DssiPlugin::reloadPrograms(%s)", bool2str(doInit));

  850.         const uint32_t oldCount = pData->midiprog.count;

  851.         const int32_t  current  = pData->midiprog.current;

  852. 

  853.         // Delete old programs

  854.         pData->midiprog.clear();

  855. 

  856.         // Query new programs

  857.         uint32_t newCount = 0;

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

  859.         {

  860.             for (; fDssiDescriptor->get_program(fHandle, newCount) != nullptr;)

  861.                 ++newCount;

  862.         }

  863. 

  864.         if (newCount > 0)

  865.         {

  866.             pData->midiprog.createNew(newCount);

  867. 

  868.             // Update data

  869.             for (uint32_t i=0; i < newCount; ++i)

  870.             {

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

  872.                 CARLA_ASSERT(pdesc != nullptr);

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

  874. 

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

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

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

  878.             }

  879.         }

  880. 

  881. #ifndef BUILD_BRIDGE

  882.         // Update OSC Names

  883.         if (pData->engine->isOscControlRegistered())

  884.         {

  885.             pData->engine->oscSend_control_set_midi_program_count(pData->id, newCount);

  886. 

  887.             for (uint32_t i=0; i < newCount; ++i)

  888.                 pData->engine->oscSend_control_set_midi_program_data(pData->id, i, pData->midiprog.data[i].bank, pData->midiprog.data[i].program, pData->midiprog.data[i].name);

  889.         }

  890. #endif

  891. 

  892.         if (doInit)

  893.         {

  894.             if (newCount > 0)

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

  896.         }

  897.         else

  898.         {

  899.             // Check if current program is invalid

  900.             bool programChanged = false;

  901. 

  902.             if (newCount == oldCount+1)

  903.             {

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

  905.                 pData->midiprog.current = static_cast<int32_t>(oldCount);

  906.                 programChanged = true;

  907.             }

  908.             else if (current < 0 && newCount > 0)

  909.             {

  910.                 // programs exist now, but not before

  911.                 pData->midiprog.current = 0;

  912.                 programChanged = true;

  913.             }

  914.             else if (current >= 0 && newCount == 0)

  915.             {

  916.                 // programs existed before, but not anymore

  917.                 pData->midiprog.current = -1;

  918.                 programChanged = true;

  919.             }

  920.             else if (current >= static_cast<int32_t>(newCount))

  921.             {

  922.                 // current midi program > count

  923.                 pData->midiprog.current = 0;

  924.                 programChanged = true;

  925.             }

  926.             else

  927.             {

  928.                 // no change

  929.                 pData->midiprog.current = current;

  930.             }

  931. 

  932.             if (programChanged)

  933.                 setMidiProgram(pData->midiprog.current, true, true, true);

  934. 

  935.             pData->engine->callback(ENGINE_CALLBACK_RELOAD_PROGRAMS, pData->id, 0, 0, 0.0f, nullptr);

  936.         }

  937.     }

  938. 

  939.     // -------------------------------------------------------------------

  940.     // Plugin processing

  941. 

  942.     void activate() noexcept override

  943.     {

  944.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  945.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

  946. 

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

  948.         {

  949.             try {

  950.                 fDescriptor->activate(fHandle);

  951.             } catch(...) {}

  952. 

  953.             if (fHandle2 != nullptr)

  954.             {

  955.                 try {

  956.                     fDescriptor->activate(fHandle2);

  957.                 } catch(...) {}

  958.             }

  959.         }

  960.     }

  961. 

  962.     void deactivate() noexcept override

  963.     {

  964.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  965.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

  966. 

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

  968.         {

  969.             try {

  970.                 fDescriptor->deactivate(fHandle);

  971.             } catch(...) {}

  972. 

  973.             if (fHandle2 != nullptr)

  974.             {

  975.                 try {

  976.                     fDescriptor->deactivate(fHandle2);

  977.                 } catch(...) {}

  978.             }

  979.         }

  980.     }

  981. 

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

  983.     {

  984.         // --------------------------------------------------------------------------------------------------------

  985.         // Check if active

  986. 

  987.         if (! pData->active)

  988.         {

  989.             // disable any output sound

  990.             for (uint32_t i=0; i < pData->audioOut.count; ++i)

  991.                 FLOAT_CLEAR(outBuffer[i], frames);

  992.             return;

  993.         }

  994. 

  995.         unsigned long midiEventCount = 0;

  996. 

  997.         // --------------------------------------------------------------------------------------------------------

  998.         // Check if needs reset

  999. 

  1000.         if (pData->needsReset)

  1001.         {

  1002.             if (pData->options & PLUGIN_OPTION_SEND_ALL_SOUND_OFF)

  1003.             {

  1004.                 midiEventCount = MAX_MIDI_CHANNELS*2;

  1005.                 carla_zeroStruct<snd_seq_event_t>(fMidiEvents, midiEventCount);

  1006. 

  1007.                 for (unsigned char i=0, k=MAX_MIDI_CHANNELS; i < MAX_MIDI_CHANNELS; ++i)

  1008.                 {

  1009.                     fMidiEvents[i].type = SND_SEQ_EVENT_CONTROLLER;

  1010.                     fMidiEvents[i].data.control.channel = i;

  1011.                     fMidiEvents[i].data.control.param   = MIDI_CONTROL_ALL_NOTES_OFF;

  1012. 

  1013.                     fMidiEvents[k+i].type = SND_SEQ_EVENT_CONTROLLER;

  1014.                     fMidiEvents[k+i].data.control.channel = i;

  1015.                     fMidiEvents[k+i].data.control.param   = MIDI_CONTROL_ALL_SOUND_OFF;

  1016.                 }

  1017.             }

  1018.             else if (pData->ctrlChannel >= 0 && pData->ctrlChannel < MAX_MIDI_CHANNELS)

  1019.             {

  1020.                 midiEventCount = MAX_MIDI_NOTE;

  1021.                 carla_zeroStruct<snd_seq_event_t>(fMidiEvents, midiEventCount);

  1022. 

  1023.                 for (unsigned char i=0; i < MAX_MIDI_NOTE; ++i)

  1024.                 {

  1025.                     fMidiEvents[i].type = SND_SEQ_EVENT_NOTEOFF;

  1026.                     fMidiEvents[i].data.note.channel = static_cast<uchar>(pData->ctrlChannel);

  1027.                     fMidiEvents[i].data.note.note    = i;

  1028.                 }

  1029.             }

  1030. 

  1031.             if (pData->latency > 0)

  1032.             {

  1033.                 for (uint32_t i=0; i < pData->audioIn.count; ++i)

  1034.                     FLOAT_CLEAR(pData->latencyBuffers[i], pData->latency);

  1035.             }

  1036. 

  1037.             pData->needsReset = false;

  1038.         }

  1039. 

  1040.         // --------------------------------------------------------------------------------------------------------

  1041.         // Event Input and Processing

  1042. 

  1043.         if (pData->event.portIn != nullptr)

  1044.         {

  1045.             // ----------------------------------------------------------------------------------------------------

  1046.             // MIDI Input (External)

  1047. 

  1048.             if (pData->extNotes.mutex.tryLock())

  1049.             {

  1050.                 for (; midiEventCount < kPluginMaxMidiEvents && ! pData->extNotes.data.isEmpty();)

  1051.                 {

  1052.                     const ExternalMidiNote& note(pData->extNotes.data.getFirst(true));

  1053. 

  1054.                     CARLA_SAFE_ASSERT_CONTINUE(note.channel >= 0 && note.channel < MAX_MIDI_CHANNELS);

  1055. 

  1056.                     snd_seq_event_t& midiEvent(fMidiEvents[midiEventCount++]);

  1057.                     carla_zeroStruct<snd_seq_event_t>(midiEvent);

  1058. 

  1059.                     midiEvent.type               = (note.velo > 0) ? SND_SEQ_EVENT_NOTEON : SND_SEQ_EVENT_NOTEOFF;

  1060.                     midiEvent.data.note.channel  = static_cast<uchar>(note.channel);

  1061.                     midiEvent.data.note.note     = note.note;

  1062.                     midiEvent.data.note.velocity = note.velo;

  1063.                 }

  1064. 

  1065.                 pData->extNotes.mutex.unlock();

  1066. 

  1067.             } // End of MIDI Input (External)

  1068. 

  1069.             // ----------------------------------------------------------------------------------------------------

  1070.             // Event Input (System)

  1071. 

  1072.             bool allNotesOffSent  = false;

  1073.             bool isSampleAccurate = (pData->options & PLUGIN_OPTION_FIXED_BUFFERS) == 0;

  1074. 

  1075.             uint32_t numEvents  = pData->event.portIn->getEventCount();

  1076.             uint32_t startTime  = 0;

  1077.             uint32_t timeOffset = 0;

  1078.             uint32_t nextBankId;

  1079. 

  1080.             if (pData->midiprog.current >= 0 && pData->midiprog.count > 0)

  1081.                 nextBankId = pData->midiprog.data[pData->midiprog.current].bank;

  1082.             else

  1083.                 nextBankId = 0;

  1084. 

  1085.             for (uint32_t i=0; i < numEvents; ++i)

  1086.             {

  1087.                 const EngineEvent& event(pData->event.portIn->getEvent(i));

  1088. 

  1089.                 if (event.time >= frames)

  1090.                     continue;

  1091. 

  1092.                 CARLA_ASSERT_INT2(event.time >= timeOffset, event.time, timeOffset);

  1093. 

  1094.                 if (isSampleAccurate && event.time > timeOffset)

  1095.                 {

  1096.                     if (processSingle(inBuffer, outBuffer, event.time - timeOffset, timeOffset, midiEventCount))

  1097.                     {

  1098.                         startTime  = 0;

  1099.                         timeOffset = event.time;

  1100.                         midiEventCount = 0;

  1101. 

  1102.                         if (pData->midiprog.current >= 0 && pData->midiprog.count > 0)

  1103.                             nextBankId = pData->midiprog.data[pData->midiprog.current].bank;

  1104.                         else

  1105.                             nextBankId = 0;

  1106.                     }

  1107.                     else

  1108.                         startTime += timeOffset;

  1109.                 }

  1110. 

  1111.                 switch (event.type)

  1112.                 {

  1113.                 case kEngineEventTypeNull:

  1114.                     break;

  1115. 

  1116.                 case kEngineEventTypeControl: {

  1117.                     const EngineControlEvent& ctrlEvent(event.ctrl);

  1118. 

  1119.                     switch (ctrlEvent.type)

  1120.                     {

  1121.                     case kEngineControlEventTypeNull:

  1122.                         break;

  1123. 

  1124.                     case kEngineControlEventTypeParameter: {

  1125. #ifndef BUILD_BRIDGE

  1126.                         // Control backend stuff

  1127.                         if (event.channel == pData->ctrlChannel)

  1128.                         {

  1129.                             float value;

  1130. 

  1131.                             if (MIDI_IS_CONTROL_BREATH_CONTROLLER(ctrlEvent.param) && (pData->hints & PLUGIN_CAN_DRYWET) != 0)

  1132.                             {

  1133.                                 value = ctrlEvent.value;

  1134.                                 setDryWet(value, false, false);

  1135.                                 pData->postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_DRYWET, 0, value);

  1136.                                 break;

  1137.                             }

  1138. 

  1139.                             if (MIDI_IS_CONTROL_CHANNEL_VOLUME(ctrlEvent.param) && (pData->hints & PLUGIN_CAN_VOLUME) != 0)

  1140.                             {

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

  1142.                                 setVolume(value, false, false);

  1143.                                 pData->postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_VOLUME, 0, value);

  1144.                                 break;

  1145.                             }

  1146. 

  1147.                             if (MIDI_IS_CONTROL_BALANCE(ctrlEvent.param) && (pData->hints & PLUGIN_CAN_BALANCE) != 0)

  1148.                             {

  1149.                                 float left, right;

  1150.                                 value = ctrlEvent.value/0.5f - 1.0f;

  1151. 

  1152.                                 if (value < 0.0f)

  1153.                                 {

  1154.                                     left  = -1.0f;

  1155.                                     right = (value*2.0f)+1.0f;

  1156.                                 }

  1157.                                 else if (value > 0.0f)

  1158.                                 {

  1159.                                     left  = (value*2.0f)-1.0f;

  1160.                                     right = 1.0f;

  1161.                                 }

  1162.                                 else

  1163.                                 {

  1164.                                     left  = -1.0f;

  1165.                                     right = 1.0f;

  1166.                                 }

  1167. 

  1168.                                 setBalanceLeft(left, false, false);

  1169.                                 setBalanceRight(right, false, false);

  1170.                                 pData->postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_BALANCE_LEFT, 0, left);

  1171.                                 pData->postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_BALANCE_RIGHT, 0, right);

  1172.                                 break;

  1173.                             }

  1174.                         }

  1175. #endif

  1176. 

  1177.                         // Control plugin parameters

  1178.                         uint32_t k;

  1179.                         for (k=0; k < pData->param.count; ++k)

  1180.                         {

  1181.                             if (pData->param.data[k].midiChannel != event.channel)

  1182.                                 continue;

  1183.                             if (pData->param.data[k].midiCC != ctrlEvent.param)

  1184.                                 continue;

  1185.                             if (pData->param.data[k].type != PARAMETER_INPUT)

  1186.                                 continue;

  1187.                             if ((pData->param.data[k].hints & PARAMETER_IS_AUTOMABLE) == 0)

  1188.                                 continue;

  1189. 

  1190.                             float value;

  1191. 

  1192.                             if (pData->param.data[k].hints & PARAMETER_IS_BOOLEAN)

  1193.                             {

  1194.                                 value = (ctrlEvent.value < 0.5f) ? pData->param.ranges[k].min : pData->param.ranges[k].max;

  1195.                             }

  1196.                             else

  1197.                             {

  1198.                                 value = pData->param.ranges[k].getUnnormalizedValue(ctrlEvent.value);

  1199. 

  1200.                                 if (pData->param.data[k].hints & PARAMETER_IS_INTEGER)

  1201.                                     value = std::rint(value);

  1202.                             }

  1203. 

  1204.                             setParameterValue(k, value, false, false, false);

  1205.                             pData->postponeRtEvent(kPluginPostRtEventParameterChange, static_cast<int32_t>(k), 0, value);

  1206.                             break;

  1207.                         }

  1208. 

  1209.                         // check if event is already handled

  1210.                         if (k != pData->param.count)

  1211.                             break;

  1212. 

  1213.                         if ((pData->options & PLUGIN_OPTION_SEND_CONTROL_CHANGES) != 0 && ctrlEvent.param <= 0x5F)

  1214.                         {

  1215.                             if (midiEventCount >= kPluginMaxMidiEvents)

  1216.                                 continue;

  1217. 

  1218.                             snd_seq_event_t& midiEvent(fMidiEvents[midiEventCount++]);

  1219.                             carla_zeroStruct<snd_seq_event_t>(midiEvent);

  1220. 

  1221.                             midiEvent.time.tick = isSampleAccurate ? startTime : event.time;

  1222. 

  1223.                             midiEvent.type = SND_SEQ_EVENT_CONTROLLER;

  1224.                             midiEvent.data.control.channel = event.channel;

  1225.                             midiEvent.data.control.param   = ctrlEvent.param;

  1226.                             midiEvent.data.control.value   = int8_t(ctrlEvent.value*127.0f);

  1227.                         }

  1228. 

  1229.                         break;

  1230.                     } // case kEngineControlEventTypeParameter

  1231. 

  1232.                     case kEngineControlEventTypeMidiBank:

  1233.                         if (event.channel == pData->ctrlChannel && (pData->options & PLUGIN_OPTION_MAP_PROGRAM_CHANGES) != 0)

  1234.                             nextBankId = ctrlEvent.param;

  1235.                         break;

  1236. 

  1237.                     case kEngineControlEventTypeMidiProgram:

  1238.                         if (event.channel == pData->ctrlChannel && (pData->options & PLUGIN_OPTION_MAP_PROGRAM_CHANGES) != 0)

  1239.                         {

  1240.                             const uint32_t nextProgramId = ctrlEvent.param;

  1241. 

  1242.                             for (uint32_t k=0; k < pData->midiprog.count; ++k)

  1243.                             {

  1244.                                 if (pData->midiprog.data[k].bank == nextBankId && pData->midiprog.data[k].program == nextProgramId)

  1245.                                 {

  1246.                                     const int32_t index(static_cast<int32_t>(k));

  1247.                                     setMidiProgram(index, false, false, false);

  1248.                                     pData->postponeRtEvent(kPluginPostRtEventMidiProgramChange, index, 0, 0.0f);

  1249.                                     break;

  1250.                                 }

  1251.                             }

  1252.                         }

  1253.                         break;

  1254. 

  1255.                     case kEngineControlEventTypeAllSoundOff:

  1256.                         if (pData->options & PLUGIN_OPTION_SEND_ALL_SOUND_OFF)

  1257.                         {

  1258.                             if (midiEventCount >= kPluginMaxMidiEvents)

  1259.                                 continue;

  1260. 

  1261.                             snd_seq_event_t& midiEvent(fMidiEvents[midiEventCount++]);

  1262.                             carla_zeroStruct<snd_seq_event_t>(midiEvent);

  1263. 

  1264.                             midiEvent.time.tick = isSampleAccurate ? startTime : event.time;

  1265. 

  1266.                             midiEvent.type = SND_SEQ_EVENT_CONTROLLER;

  1267.                             midiEvent.data.control.channel = event.channel;

  1268.                             midiEvent.data.control.param   = MIDI_CONTROL_ALL_SOUND_OFF;

  1269.                         }

  1270.                         break;

  1271. 

  1272.                     case kEngineControlEventTypeAllNotesOff:

  1273.                         if (pData->options & PLUGIN_OPTION_SEND_ALL_SOUND_OFF)

  1274.                         {

  1275.                             if (event.channel == pData->ctrlChannel && ! allNotesOffSent)

  1276.                             {

  1277.                                 allNotesOffSent = true;

  1278.                                 sendMidiAllNotesOffToCallback();

  1279.                             }

  1280. 

  1281.                             if (midiEventCount >= kPluginMaxMidiEvents)

  1282.                                 continue;

  1283. 

  1284.                             snd_seq_event_t& midiEvent(fMidiEvents[midiEventCount++]);

  1285.                             carla_zeroStruct<snd_seq_event_t>(midiEvent);

  1286. 

  1287.                             midiEvent.time.tick = isSampleAccurate ? startTime : event.time;

  1288. 

  1289.                             midiEvent.type = SND_SEQ_EVENT_CONTROLLER;

  1290.                             midiEvent.data.control.channel = event.channel;

  1291.                             midiEvent.data.control.param   = MIDI_CONTROL_ALL_NOTES_OFF;

  1292. 

  1293.                             midiEventCount += 1;

  1294.                         }

  1295.                         break;

  1296.                     } // switch (ctrlEvent.type)

  1297.                     break;

  1298.                 } // case kEngineEventTypeControl

  1299. 

  1300.                 case kEngineEventTypeMidi: {

  1301.                     if (midiEventCount >= kPluginMaxMidiEvents)

  1302.                         continue;

  1303. 

  1304.                     const EngineMidiEvent& engineEvent(event.midi);

  1305. 

  1306.                     uint8_t status  = uint8_t(MIDI_GET_STATUS_FROM_DATA(engineEvent.data));

  1307.                     uint8_t channel = event.channel;

  1308. 

  1309.                     // Fix bad note-off (per DSSI spec)

  1310.                     if (MIDI_IS_STATUS_NOTE_ON(status) && engineEvent.data[2] == 0)

  1311.                         status = MIDI_STATUS_NOTE_OFF;

  1312. 

  1313.                     snd_seq_event_t& midiEvent(fMidiEvents[midiEventCount]);

  1314.                     carla_zeroStruct<snd_seq_event_t>(midiEvent);

  1315. 

  1316.                     midiEvent.time.tick = isSampleAccurate ? startTime : event.time;

  1317. 

  1318.                     switch (status)

  1319.                     {

  1320.                     case MIDI_STATUS_NOTE_OFF: {

  1321.                         const uint8_t note = engineEvent.data[1];

  1322. 

  1323.                         midiEvent.type = SND_SEQ_EVENT_NOTEOFF;

  1324.                         midiEvent.data.note.channel = channel;

  1325.                         midiEvent.data.note.note    = note;

  1326. 

  1327.                         pData->postponeRtEvent(kPluginPostRtEventNoteOff, channel, note, 0.0f);

  1328.                         break;

  1329.                     }

  1330. 

  1331.                     case MIDI_STATUS_NOTE_ON: {

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

  1333.                         const uint8_t velo = engineEvent.data[2];

  1334. 

  1335.                         midiEvent.type = SND_SEQ_EVENT_NOTEON;

  1336.                         midiEvent.data.note.channel  = channel;

  1337.                         midiEvent.data.note.note     = note;

  1338.                         midiEvent.data.note.velocity = velo;

  1339. 

  1340.                         pData->postponeRtEvent(kPluginPostRtEventNoteOn, channel, note, velo);

  1341.                         break;

  1342.                     }

  1343. 

  1344.                     case MIDI_STATUS_POLYPHONIC_AFTERTOUCH:

  1345.                         if (pData->options & PLUGIN_OPTION_SEND_NOTE_AFTERTOUCH)

  1346.                         {

  1347.                             const uint8_t note     = engineEvent.data[1];

  1348.                             const uint8_t pressure = engineEvent.data[2];

  1349. 

  1350.                             midiEvent.type = SND_SEQ_EVENT_KEYPRESS;

  1351.                             midiEvent.data.note.channel  = channel;

  1352.                             midiEvent.data.note.note     = note;

  1353.                             midiEvent.data.note.velocity = pressure;

  1354.                         }

  1355.                         break;

  1356. 

  1357.                     case MIDI_STATUS_CONTROL_CHANGE:

  1358.                         if (pData->options & PLUGIN_OPTION_SEND_CONTROL_CHANGES)

  1359.                         {

  1360.                             const uint8_t control = engineEvent.data[1];

  1361.                             const uint8_t value   = engineEvent.data[2];

  1362. 

  1363.                             midiEvent.type = SND_SEQ_EVENT_CONTROLLER;

  1364.                             midiEvent.data.control.channel = channel;

  1365.                             midiEvent.data.control.param   = control;

  1366.                             midiEvent.data.control.value   = value;

  1367.                         }

  1368.                         break;

  1369. 

  1370.                     case MIDI_STATUS_CHANNEL_PRESSURE:

  1371.                         if (pData->options & PLUGIN_OPTION_SEND_CHANNEL_PRESSURE)

  1372.                         {

  1373.                             const uint8_t pressure = engineEvent.data[1];

  1374. 

  1375.                             midiEvent.type = SND_SEQ_EVENT_CHANPRESS;

  1376.                             midiEvent.data.control.channel = channel;

  1377.                             midiEvent.data.control.value   = pressure;

  1378.                         }

  1379.                         break;

  1380. 

  1381.                     case MIDI_STATUS_PITCH_WHEEL_CONTROL:

  1382.                         if (pData->options & PLUGIN_OPTION_SEND_PITCHBEND)

  1383.                         {

  1384.                             const uint8_t lsb = engineEvent.data[1];

  1385.                             const uint8_t msb = engineEvent.data[2];

  1386. 

  1387.                             midiEvent.type = SND_SEQ_EVENT_PITCHBEND;

  1388.                             midiEvent.data.control.channel = channel;

  1389.                             midiEvent.data.control.value   = ((msb << 7) | lsb) - 8192;

  1390.                         }

  1391.                         break;

  1392. 

  1393.                     default:

  1394.                         continue;

  1395.                         break;

  1396.                     } // switch (status)

  1397. 

  1398.                     midiEventCount += 1;

  1399.                     break;

  1400.                 } // case kEngineEventTypeMidi

  1401.                 } // switch (event.type)

  1402.             }

  1403. 

  1404.             pData->postRtEvents.trySplice();

  1405. 

  1406.             if (frames > timeOffset)

  1407.                 processSingle(inBuffer, outBuffer, frames - timeOffset, timeOffset, midiEventCount);

  1408. 

  1409.         } // End of Event Input and Processing

  1410. 

  1411.         // --------------------------------------------------------------------------------------------------------

  1412.         // Plugin processing (no events)

  1413. 

  1414.         else

  1415.         {

  1416.             processSingle(inBuffer, outBuffer, frames, 0, midiEventCount);

  1417. 

  1418.         } // End of Plugin processing (no events)

  1419. 

  1420.         CARLA_PROCESS_CONTINUE_CHECK;

  1421. 

  1422.         // --------------------------------------------------------------------------------------------------------

  1423.         // Control Output

  1424. 

  1425.         if (pData->event.portOut != nullptr)

  1426.         {

  1427.             uint8_t  channel;

  1428.             uint16_t param;

  1429.             float    value;

  1430. 

  1431.             for (uint32_t k=0; k < pData->param.count; ++k)

  1432.             {

  1433.                 if (pData->param.data[k].type != PARAMETER_OUTPUT)

  1434.                     continue;

  1435. 

  1436.                 pData->param.ranges[k].fixValue(fParamBuffers[k]);

  1437. 

  1438.                 if (pData->param.data[k].midiCC > 0)

  1439.                 {

  1440.                     channel = pData->param.data[k].midiChannel;

  1441.                     param   = static_cast<uint16_t>(pData->param.data[k].midiCC);

  1442.                     value   = pData->param.ranges[k].getNormalizedValue(fParamBuffers[k]);

  1443.                     pData->event.portOut->writeControlEvent(0, channel, kEngineControlEventTypeParameter, param, value);

  1444.                 }

  1445.             }

  1446.         } // End of Control Output

  1447.     }

  1448. 

  1449.     bool processSingle(float** const inBuffer, float** const outBuffer, const uint32_t frames, const uint32_t timeOffset, const unsigned long midiEventCount)

  1450.     {

  1451.         CARLA_SAFE_ASSERT_RETURN(frames > 0, false);

  1452. 

  1453.         if (pData->audioIn.count > 0)

  1454.         {

  1455.             CARLA_SAFE_ASSERT_RETURN(inBuffer != nullptr, false);

  1456.         }

  1457.         if (pData->audioOut.count > 0)

  1458.         {

  1459.             CARLA_SAFE_ASSERT_RETURN(outBuffer != nullptr, false);

  1460.         }

  1461. 

  1462.         // --------------------------------------------------------------------------------------------------------

  1463.         // Try lock, silence otherwise

  1464. 

  1465.         if (pData->engine->isOffline())

  1466.         {

  1467.             pData->singleMutex.lock();

  1468.         }

  1469.         else if (! pData->singleMutex.tryLock())

  1470.         {

  1471.             for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1472.             {

  1473.                 for (uint32_t k=0; k < frames; ++k)

  1474.                     outBuffer[i][k+timeOffset] = 0.0f;

  1475.             }

  1476. 

  1477.             return false;

  1478.         }

  1479. 

  1480.         // --------------------------------------------------------------------------------------------------------

  1481.         // Reset audio buffers

  1482. 

  1483.         for (uint32_t i=0; i < pData->audioIn.count; ++i)

  1484.             FLOAT_COPY(fAudioInBuffers[i], inBuffer[i]+timeOffset, frames);

  1485. 

  1486.         for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1487.             FLOAT_CLEAR(fAudioOutBuffers[i], frames);

  1488. 

  1489.         // --------------------------------------------------------------------------------------------------------

  1490.         // Run plugin

  1491. 

  1492.         if (fDssiDescriptor->run_synth != nullptr)

  1493.         {

  1494.             fDssiDescriptor->run_synth(fHandle, frames, fMidiEvents, midiEventCount);

  1495. 

  1496.             if (fHandle2 != nullptr)

  1497.                 fDssiDescriptor->run_synth(fHandle2, frames, fMidiEvents, midiEventCount);

  1498.         }

  1499.         else if (fDssiDescriptor->run_multiple_synths != nullptr)

  1500.         {

  1501.             unsigned long instances = (fHandle2 != nullptr) ? 2 : 1;

  1502.             LADSPA_Handle handlePtr[2] = { fHandle, fHandle2 };

  1503.             snd_seq_event_t* midiEventsPtr[2] = { fMidiEvents, fMidiEvents };

  1504.             unsigned long midiEventCountPtr[2] = { midiEventCount, midiEventCount };

  1505.             fDssiDescriptor->run_multiple_synths(instances, handlePtr, frames, midiEventsPtr, midiEventCountPtr);

  1506.         }

  1507.         else

  1508.         {

  1509.             fDescriptor->run(fHandle, frames);

  1510. 

  1511.             if (fHandle2 != nullptr)

  1512.                 fDescriptor->run(fHandle2, frames);

  1513.         }

  1514. 

  1515. #ifndef BUILD_BRIDGE

  1516.         // --------------------------------------------------------------------------------------------------------

  1517.         // Post-processing (dry/wet, volume and balance)

  1518. 

  1519.         {

  1520.             const bool doDryWet  = (pData->hints & PLUGIN_CAN_DRYWET) != 0 && pData->postProc.dryWet != 1.0f;

  1521.             const bool doBalance = (pData->hints & PLUGIN_CAN_BALANCE) != 0 && (pData->postProc.balanceLeft != -1.0f || pData->postProc.balanceRight != 1.0f);

  1522. 

  1523.             bool isPair;

  1524.             float bufValue, oldBufLeft[doBalance ? frames : 1];

  1525. 

  1526.             for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1527.             {

  1528.                 // Dry/Wet

  1529.                 if (doDryWet)

  1530.                 {

  1531.                     for (uint32_t k=0; k < frames; ++k)

  1532.                     {

  1533.                         // TODO

  1534.                         //if (k < pData->latency && pData->latency < frames)

  1535.                         //    bufValue = (pData->audioIn.count == 1) ? pData->latencyBuffers[0][k] : pData->latencyBuffers[i][k];

  1536.                         //else

  1537.                         //    bufValue = (pData->audioIn.count == 1) ? inBuffer[0][k-m_latency] : inBuffer[i][k-m_latency];

  1538. 

  1539.                         bufValue = fAudioInBuffers[(pData->audioIn.count == 1) ? 0 : i][k];

  1540.                         fAudioOutBuffers[i][k] = (fAudioOutBuffers[i][k] * pData->postProc.dryWet) + (bufValue * (1.0f - pData->postProc.dryWet));

  1541.                     }

  1542.                 }

  1543. 

  1544.                 // Balance

  1545.                 if (doBalance)

  1546.                 {

  1547.                     isPair = (i % 2 == 0);

  1548. 

  1549.                     if (isPair)

  1550.                     {

  1551.                         CARLA_ASSERT(i+1 < pData->audioOut.count);

  1552.                         FLOAT_COPY(oldBufLeft, fAudioOutBuffers[i], frames);

  1553.                     }

  1554. 

  1555.                     float balRangeL = (pData->postProc.balanceLeft  + 1.0f)/2.0f;

  1556.                     float balRangeR = (pData->postProc.balanceRight + 1.0f)/2.0f;

  1557. 

  1558.                     for (uint32_t k=0; k < frames; ++k)

  1559.                     {

  1560.                         if (isPair)

  1561.                         {

  1562.                             // left

  1563.                             fAudioOutBuffers[i][k]  = oldBufLeft[k]            * (1.0f - balRangeL);

  1564.                             fAudioOutBuffers[i][k] += fAudioOutBuffers[i+1][k] * (1.0f - balRangeR);

  1565.                         }

  1566.                         else

  1567.                         {

  1568.                             // right

  1569.                             fAudioOutBuffers[i][k]  = fAudioOutBuffers[i][k] * balRangeR;

  1570.                             fAudioOutBuffers[i][k] += oldBufLeft[k]          * balRangeL;

  1571.                         }

  1572.                     }

  1573.                 }

  1574. 

  1575.                 // Volume (and buffer copy)

  1576.                 {

  1577.                     for (uint32_t k=0; k < frames; ++k)

  1578.                         outBuffer[i][k+timeOffset] = fAudioOutBuffers[i][k] * pData->postProc.volume;

  1579.                 }

  1580.             }

  1581. 

  1582. #if 0

  1583.             // Latency, save values for next callback, TODO

  1584.             if (pData->latency > 0 && pData->latency < frames)

  1585.             {

  1586.                 for (i=0; i < pData->audioIn.count; ++i)

  1587.                     FLOAT_COPY(pData->latencyBuffers[i], inBuffer[i] + (frames - pData->latency), pData->latency);

  1588.             }

  1589. #endif

  1590.         } // End of Post-processing

  1591. 

  1592. #else // BUILD_BRIDGE

  1593.         for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1594.         {

  1595.             for (uint32_t k=0; k < frames; ++k)

  1596.                 outBuffer[i][k+timeOffset] = fAudioOutBuffers[i][k];

  1597.         }

  1598. #endif

  1599. 

  1600.         // --------------------------------------------------------------------------------------------------------

  1601. 

  1602.         pData->singleMutex.unlock();

  1603.         return true;

  1604.     }

  1605. 

  1606.     void bufferSizeChanged(const uint32_t newBufferSize) override

  1607.     {

  1608.         CARLA_ASSERT_INT(newBufferSize > 0, newBufferSize);

  1609.         carla_debug("DssiPlugin::bufferSizeChanged(%i) - start", newBufferSize);

  1610. 

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

  1612.         {

  1613.             if (fAudioInBuffers[i] != nullptr)

  1614.                 delete[] fAudioInBuffers[i];

  1615.             fAudioInBuffers[i] = new float[newBufferSize];

  1616.         }

  1617. 

  1618.         for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1619.         {

  1620.             if (fAudioOutBuffers[i] != nullptr)

  1621.                 delete[] fAudioOutBuffers[i];

  1622.             fAudioOutBuffers[i] = new float[newBufferSize];

  1623.         }

  1624. 

  1625.         if (fHandle2 == nullptr)

  1626.         {

  1627.             for (uint32_t i=0; i < pData->audioIn.count; ++i)

  1628.             {

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

  1630.                 fDescriptor->connect_port(fHandle, pData->audioIn.ports[i].rindex, fAudioInBuffers[i]);

  1631.             }

  1632. 

  1633.             for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1634.             {

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

  1636.                 fDescriptor->connect_port(fHandle, pData->audioOut.ports[i].rindex, fAudioOutBuffers[i]);

  1637.             }

  1638.         }

  1639.         else

  1640.         {

  1641.             if (pData->audioIn.count > 0)

  1642.             {

  1643.                 CARLA_ASSERT(pData->audioIn.count == 2);

  1644.                 CARLA_ASSERT(fAudioInBuffers[0] != nullptr);

  1645.                 CARLA_ASSERT(fAudioInBuffers[1] != nullptr);

  1646. 

  1647.                 fDescriptor->connect_port(fHandle,  pData->audioIn.ports[0].rindex, fAudioInBuffers[0]);

  1648.                 fDescriptor->connect_port(fHandle2, pData->audioIn.ports[1].rindex, fAudioInBuffers[1]);

  1649.             }

  1650. 

  1651.             if (pData->audioOut.count > 0)

  1652.             {

  1653.                 CARLA_ASSERT(pData->audioOut.count == 2);

  1654.                 CARLA_ASSERT(fAudioOutBuffers[0] != nullptr);

  1655.                 CARLA_ASSERT(fAudioOutBuffers[1] != nullptr);

  1656. 

  1657.                 fDescriptor->connect_port(fHandle,  pData->audioOut.ports[0].rindex, fAudioOutBuffers[0]);

  1658.                 fDescriptor->connect_port(fHandle2, pData->audioOut.ports[1].rindex, fAudioOutBuffers[1]);

  1659.             }

  1660.         }

  1661. 

  1662.         carla_debug("DssiPlugin::bufferSizeChanged(%i) - end", newBufferSize);

  1663.     }

  1664. 

  1665.     void sampleRateChanged(const double newSampleRate) override

  1666.     {

  1667.         CARLA_ASSERT_INT(newSampleRate > 0.0, (int)newSampleRate);

  1668.         carla_debug("DssiPlugin::sampleRateChanged(%g) - start", newSampleRate);

  1669. 

  1670.         // TODO

  1671.         (void)newSampleRate;

  1672. 

  1673.         carla_debug("DssiPlugin::sampleRateChanged(%g) - end", newSampleRate);

  1674.     }

  1675. 

  1676.     // -------------------------------------------------------------------

  1677.     // Plugin buffers

  1678. 

  1679.     void clearBuffers() override

  1680.     {

  1681.         carla_debug("DssiPlugin::clearBuffers() - start");

  1682. 

  1683.         if (fAudioInBuffers != nullptr)

  1684.         {

  1685.             for (uint32_t i=0; i < pData->audioIn.count; ++i)

  1686.             {

  1687.                 if (fAudioInBuffers[i] != nullptr)

  1688.                 {

  1689.                     delete[] fAudioInBuffers[i];

  1690.                     fAudioInBuffers[i] = nullptr;

  1691.                 }

  1692.             }

  1693. 

  1694.             delete[] fAudioInBuffers;

  1695.             fAudioInBuffers = nullptr;

  1696.         }

  1697. 

  1698.         if (fAudioOutBuffers != nullptr)

  1699.         {

  1700.             for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1701.             {

  1702.                 if (fAudioOutBuffers[i] != nullptr)

  1703.                 {

  1704.                     delete[] fAudioOutBuffers[i];

  1705.                     fAudioOutBuffers[i] = nullptr;

  1706.                 }

  1707.             }

  1708. 

  1709.             delete[] fAudioOutBuffers;

  1710.             fAudioOutBuffers = nullptr;

  1711.         }

  1712. 

  1713.         if (fParamBuffers != nullptr)

  1714.         {

  1715.             delete[] fParamBuffers;

  1716.             fParamBuffers = nullptr;

  1717.         }

  1718. 

  1719.         CarlaPlugin::clearBuffers();

  1720. 

  1721.         carla_debug("DssiPlugin::clearBuffers() - end");

  1722.     }

  1723. 

  1724.     // -------------------------------------------------------------------

  1725.     // OSC stuff

  1726. 

  1727.     void updateOscData(const lo_address& source, const char* const url) override

  1728.     {

  1729.         CarlaPlugin::updateOscData(source, url);

  1730. 

  1731.         if (carla_standalone_get_transient_win_id() != 0)

  1732.             fTransientTryCounter = 1;

  1733.     }

  1734. 

  1735.     // -------------------------------------------------------------------

  1736.     // Post-poned UI Stuff

  1737. 

  1738.     void uiParameterChange(const uint32_t index, const float value) noexcept override

  1739.     {

  1740.         CARLA_SAFE_ASSERT_RETURN(index < pData->param.count,);

  1741. 

  1742.         if (pData->osc.data.target == nullptr)

  1743.             return;

  1744. 

  1745.         osc_send_control(pData->osc.data, pData->param.data[index].rindex, value);

  1746.     }

  1747. 

  1748.     void uiMidiProgramChange(const uint32_t index) noexcept override

  1749.     {

  1750.         CARLA_SAFE_ASSERT_RETURN(index < pData->midiprog.count,);

  1751. 

  1752.         if (pData->osc.data.target == nullptr)

  1753.             return;

  1754. 

  1755.         osc_send_program(pData->osc.data, pData->midiprog.data[index].bank, pData->midiprog.data[index].program);

  1756.     }

  1757. 

  1758.     void uiNoteOn(const uint8_t channel, const uint8_t note, const uint8_t velo) noexcept override

  1759.     {

  1760.         CARLA_SAFE_ASSERT_RETURN(channel < MAX_MIDI_CHANNELS,);

  1761.         CARLA_SAFE_ASSERT_RETURN(note < MAX_MIDI_NOTE,);

  1762.         CARLA_SAFE_ASSERT_RETURN(velo > 0 && velo < MAX_MIDI_VALUE,);

  1763. 

  1764.         if (pData->osc.data.target == nullptr)

  1765.             return;

  1766. 

  1767. #if 0

  1768.         uint8_t midiData[4] = { 0 };

  1769.         midiData[1] = MIDI_STATUS_NOTE_ON + channel;

  1770.         midiData[2] = note;

  1771.         midiData[3] = velo;

  1772. 

  1773.         osc_send_midi(pData->osc.data, midiData);

  1774. #endif

  1775.     }

  1776. 

  1777.     void uiNoteOff(const uint8_t channel, const uint8_t note) noexcept override

  1778.     {

  1779.         CARLA_SAFE_ASSERT_RETURN(channel < MAX_MIDI_CHANNELS,);

  1780.         CARLA_SAFE_ASSERT_RETURN(note < MAX_MIDI_NOTE,);

  1781. 

  1782.         if (pData->osc.data.target == nullptr)

  1783.             return;

  1784. 

  1785. #if 0

  1786.         uint8_t midiData[4] = { 0 };

  1787.         midiData[1] = MIDI_STATUS_NOTE_OFF + channel;

  1788.         midiData[2] = note;

  1789. 

  1790.         osc_send_midi(pData->osc.data, midiData);

  1791. #endif

  1792.     }

  1793. 

  1794.     // -------------------------------------------------------------------

  1795. 

  1796.     const void* getExtraStuff() const noexcept override

  1797.     {

  1798.         return fUiFilename;

  1799.     }

  1800. 

  1801.     bool init(const char* const filename, const char* const name, const char* const label)

  1802.     {

  1803.         CARLA_SAFE_ASSERT_RETURN(pData->engine != nullptr, false);

  1804. 

  1805.         // ---------------------------------------------------------------

  1806.         // first checks

  1807. 

  1808.         if (pData->client != nullptr)

  1809.         {

  1810.             pData->engine->setLastError("Plugin client is already registered");

  1811.             return false;

  1812.         }

  1813. 

  1814.         if (filename == nullptr || filename[0] == '\0')

  1815.         {

  1816.             pData->engine->setLastError("null filename");

  1817.             return false;

  1818.         }

  1819. 

  1820.         if (label == nullptr || label[0] == '\0')

  1821.         {

  1822.             pData->engine->setLastError("null label");

  1823.             return false;

  1824.         }

  1825. 

  1826.         // ---------------------------------------------------------------

  1827.         // open DLL

  1828. 

  1829.         if (! pData->libOpen(filename))

  1830.         {

  1831.             pData->engine->setLastError(pData->libError(filename));

  1832.             return false;

  1833.         }

  1834. 

  1835.         // ---------------------------------------------------------------

  1836.         // get DLL main entry

  1837. 

  1838.         const DSSI_Descriptor_Function descFn = (DSSI_Descriptor_Function)pData->libSymbol("dssi_descriptor");

  1839. 

  1840.         if (descFn == nullptr)

  1841.         {

  1842.             pData->engine->setLastError("Could not find the DSSI Descriptor in the plugin library");

  1843.             return false;

  1844.         }

  1845. 

  1846.         // ---------------------------------------------------------------

  1847.         // get descriptor that matches label

  1848. 

  1849.         unsigned long i = 0;

  1850.         while ((fDssiDescriptor = descFn(i++)) != nullptr)

  1851.         {

  1852.             fDescriptor = fDssiDescriptor->LADSPA_Plugin;

  1853.             if (fDescriptor != nullptr && fDescriptor->Label != nullptr && std::strcmp(fDescriptor->Label, label) == 0)

  1854.                 break;

  1855.         }

  1856. 

  1857.         if (fDescriptor == nullptr || fDssiDescriptor == nullptr)

  1858.         {

  1859.             pData->engine->setLastError("Could not find the requested plugin label in the plugin library");

  1860.             return false;

  1861.         }

  1862. 

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

  1864.         // check if uses global instance

  1865. 

  1866.         if (fDssiDescriptor->run_synth == nullptr && fDssiDescriptor->run_multiple_synths != nullptr)

  1867.         {

  1868.             if (! addUniqueMultiSynth(fDescriptor->Label))

  1869.             {

  1870.                 pData->engine->setLastError("This plugin uses a global instance and can't be used more than once safely");

  1871.                 return false;

  1872.             }

  1873.         }

  1874. 

  1875.         // ---------------------------------------------------------------

  1876.         // get info

  1877. 

  1878.         if (name != nullptr && name[0] != '\0')

  1879.             pData->name = pData->engine->getUniquePluginName(name);

  1880.         else if (fDescriptor->Name != nullptr && fDescriptor->Name[0] != '\0')

  1881.             pData->name = pData->engine->getUniquePluginName(fDescriptor->Name);

  1882.         else

  1883.             pData->name = pData->engine->getUniquePluginName(fDescriptor->Label);

  1884. 

  1885.         pData->filename = carla_strdup(filename);

  1886. 

  1887.         // ---------------------------------------------------------------

  1888.         // register client

  1889. 

  1890.         pData->client = pData->engine->addClient(this);

  1891. 

  1892.         if (pData->client == nullptr || ! pData->client->isOk())

  1893.         {

  1894.             pData->engine->setLastError("Failed to register plugin client");

  1895.             return false;

  1896.         }

  1897. 

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

  1899.         // initialize plugin

  1900. 

  1901.         fHandle = fDescriptor->instantiate(fDescriptor, (unsigned long)pData->engine->getSampleRate());

  1902. 

  1903.         if (fHandle == nullptr)

  1904.         {

  1905.             pData->engine->setLastError("Plugin failed to initialize");

  1906.             return false;

  1907.         }

  1908. 

  1909.         // ---------------------------------------------------------------

  1910.         // check for custom data extension

  1911. 

  1912.         if (fDssiDescriptor->configure != nullptr)

  1913.         {

  1914.             if (char* const error = fDssiDescriptor->configure(fHandle, DSSI_CUSTOMDATA_EXTENSION_KEY, ""))

  1915.             {

  1916.                 if (std::strcmp(error, "true") == 0 && fDssiDescriptor->get_custom_data != nullptr && fDssiDescriptor->set_custom_data != nullptr)

  1917.                     fUsesCustomData = true;

  1918. 

  1919.                 std::free(error);

  1920.             }

  1921.         }

  1922. 

  1923.         // ---------------------------------------------------------------

  1924.         // gui stuff

  1925. 

  1926.         if (const char* const guiFilename = find_dssi_ui(filename, fDescriptor->Label))

  1927.         {

  1928.             pData->osc.thread.setOscData(guiFilename, fDescriptor->Label);

  1929.             fUiFilename = guiFilename;

  1930.         }

  1931. 

  1932.         // ---------------------------------------------------------------

  1933.         // load plugin settings

  1934. 

  1935.         {

  1936. #ifdef __USE_GNU

  1937.             const bool isAmSynth(strcasestr(pData->filename, "amsynth"));

  1938.             const bool isDssiVst(strcasestr(pData->filename, "dssi-vst"));

  1939. #else

  1940.             const bool isAmSynth(std::strstr(pData->filename, "amsynth"));

  1941.             const bool isDssiVst(std::strstr(pData->filename, "dssi-vst"));

  1942. #endif

  1943. 

  1944.             // set default options

  1945.             pData->options = 0x0;

  1946. 

  1947.             pData->options |= PLUGIN_OPTION_MAP_PROGRAM_CHANGES;

  1948. 

  1949.             if (isAmSynth || isDssiVst)

  1950.                 pData->options |= PLUGIN_OPTION_FIXED_BUFFERS;

  1951. 

  1952.             if (pData->engine->getOptions().forceStereo)

  1953.                 pData->options |= PLUGIN_OPTION_FORCE_STEREO;

  1954. 

  1955.             if (fUsesCustomData)

  1956.                 pData->options |= PLUGIN_OPTION_USE_CHUNKS;

  1957. 

  1958.             if (fDssiDescriptor->run_synth != nullptr || fDssiDescriptor->run_multiple_synths != nullptr)

  1959.             {

  1960.                 pData->options |= PLUGIN_OPTION_SEND_CHANNEL_PRESSURE;

  1961.                 pData->options |= PLUGIN_OPTION_SEND_NOTE_AFTERTOUCH;

  1962.                 pData->options |= PLUGIN_OPTION_SEND_PITCHBEND;

  1963.                 pData->options |= PLUGIN_OPTION_SEND_ALL_SOUND_OFF;

  1964. 

  1965.                 if (fDssiDescriptor->run_synth == nullptr)

  1966.                     carla_stderr2("WARNING: Plugin can ONLY use run_multiple_synths!");

  1967.             }

  1968. 

  1969.             // set identifier string

  1970.             CarlaString identifier("DSSI/");

  1971. 

  1972.             if (const char* const shortname = std::strrchr(filename, OS_SEP))

  1973.             {

  1974.                 identifier += shortname+1;

  1975.                 identifier += ",";

  1976.             }

  1977. 

  1978.             identifier += label;

  1979.             pData->identifier = identifier.dup();

  1980. 

  1981.             // load settings

  1982.             pData->options = pData->loadSettings(pData->options, getOptionsAvailable());

  1983. 

  1984.             // ignore settings, we need this anyway

  1985.             if (isAmSynth || isDssiVst)

  1986.                 pData->options |= PLUGIN_OPTION_FIXED_BUFFERS;

  1987.         }

  1988. 

  1989.         return true;

  1990.     }

  1991. 

  1992.     // -------------------------------------------------------------------

  1993. 

  1994. private:

  1995.     LADSPA_Handle fHandle;

  1996.     LADSPA_Handle fHandle2;

  1997.     const LADSPA_Descriptor* fDescriptor;

  1998.     const DSSI_Descriptor*   fDssiDescriptor;

  1999. 

  2000.     bool fUsesCustomData;

  2001.     const char* fUiFilename;

  2002. 

  2003.     float** fAudioInBuffers;

  2004.     float** fAudioOutBuffers;

  2005.     float*  fParamBuffers;

  2006.     snd_seq_event_t fMidiEvents[kPluginMaxMidiEvents];

  2007. 

  2008.     // used to try and set transient hint for external windows

  2009.     uint fTransientTryCounter;

  2010. 

  2011.     // -------------------------------------------------------------------

  2012. 

  2013.     static LinkedList<const char*> sMultiSynthList;

  2014. 

  2015.     static bool addUniqueMultiSynth(const char* const label)

  2016.     {

  2017.         CARLA_SAFE_ASSERT_RETURN(label != nullptr && label[0] != '\0', false);

  2018. 

  2019.         for (LinkedList<const char*>::Itenerator it = sMultiSynthList.begin(); it.valid(); it.next())

  2020.         {

  2021.             const char*& itLabel(it.getValue());

  2022. 

  2023.             if (std::strcmp(label, itLabel) == 0)

  2024.                 return false;

  2025.         }

  2026. 

  2027.         sMultiSynthList.append(carla_strdup(label));

  2028.         return true;

  2029.     }

  2030. 

  2031.     static void removeUniqueMultiSynth(const char* const label)

  2032.     {

  2033.         CARLA_SAFE_ASSERT_RETURN(label != nullptr && label[0] != '\0',);

  2034. 

  2035.         for (LinkedList<const char*>::Itenerator it = sMultiSynthList.begin(); it.valid(); it.next())

  2036.         {

  2037.             const char* const itLabel(it.getValue());

  2038. 

  2039.             if (std::strcmp(label, itLabel) == 0)

  2040.             {

  2041.                 sMultiSynthList.remove(it);

  2042.                 delete[] itLabel;

  2043.                 break;

  2044.             }

  2045.         }

  2046.     }

  2047. 

  2048.     CARLA_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR(DssiPlugin)

  2049. };

  2050. 

  2051. LinkedList<const char*> DssiPlugin::sMultiSynthList;

  2052. 

  2053. CARLA_BACKEND_END_NAMESPACE

  2054. 

  2055. #endif // WANT_DSSI

  2056. 

  2057. // -------------------------------------------------------------------------------------------------------------------

  2058. 

  2059. CARLA_BACKEND_START_NAMESPACE

  2060. 

  2061. CarlaPlugin* CarlaPlugin::newDSSI(const Initializer& init)

  2062. {

  2063.     carla_debug("CarlaPlugin::newDSSI({%p, \"%s\", \"%s\", \"%s\"})", init.engine, init.filename, init.name, init.label);

  2064. 

  2065. #ifdef WANT_DSSI

  2066.     DssiPlugin* const plugin(new DssiPlugin(init.engine, init.id));

  2067. 

  2068.     if (! plugin->init(init.filename, init.name, init.label))

  2069.     {

  2070.         delete plugin;

  2071.         return nullptr;

  2072.     }

  2073. 

  2074.     plugin->reload();

  2075. 

  2076.     if (init.engine->getProccessMode() == ENGINE_PROCESS_MODE_CONTINUOUS_RACK && ! plugin->canRunInRack())

  2077.     {

  2078.         init.engine->setLastError("Carla's rack mode can only work with Mono or Stereo DSSI plugins, sorry!");

  2079.         delete plugin;

  2080.         return nullptr;

  2081.     }

  2082. 

  2083.     return plugin;

  2084. #else

  2085.     init.engine->setLastError("DSSI support not available");

  2086.     return nullptr;

  2087. #endif

  2088. }

  2089. 

  2090. CARLA_BACKEND_END_NAMESPACE

  2091. 

  2092. // -------------------------------------------------------------------------------------------------------------------