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Carla
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Carla/source/backend/plugin/DssiPlugin.cpp

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  1. /*

  2.  * Carla DSSI Plugin

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

  4.  *

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

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

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

  8.  * the License, or any later version.

  9.  *

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

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

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

  13.  * GNU General Public License for more details.

  14.  *

  15.  * For a full copy of the GNU General Public License see the 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 "CarlaLibUtils.hpp"

  25. 

  26. CARLA_BACKEND_START_NAMESPACE

  27. 

  28. #if 0

  29. }

  30. #endif

  31. 

  32. class DssiPlugin : public CarlaPlugin

  33. {

  34. public:

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

  36.         : CarlaPlugin(engine, id),

  37.           fHandle(nullptr),

  38.           fHandle2(nullptr),

  39.           fDescriptor(nullptr),

  40.           fDssiDescriptor(nullptr),

  41.           fUsesCustomData(false),

  42.           fGuiFilename(nullptr),

  43.           fAudioInBuffers(nullptr),

  44.           fAudioOutBuffers(nullptr),

  45.           fParamBuffers(nullptr)

  46.     {

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

  48. 

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

  50.     }

  51. 

  52.     ~DssiPlugin() override

  53.     {

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

  55. 

  56.         // close UI

  57.         if (pData->hints & PLUGIN_HAS_CUSTOM_UI)

  58.         {

  59.             showCustomUI(false);

  60. 

  61.             pData->osc.thread.stop(pData->engine->getOptions().uiBridgesTimeout * 2);

  62.         }

  63. 

  64.         pData->singleMutex.lock();

  65.         pData->masterMutex.lock();

  66. 

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

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

  69. 

  70.         if (pData->active)

  71.         {

  72.             deactivate();

  73.             pData->active = false;

  74.         }

  75. 

  76.         if (fDescriptor != nullptr)

  77.         {

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

  79.                 removeUniqueMultiSynth(fDescriptor->Label);

  80. 

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

  82.             {

  83.                 if (fHandle != nullptr)

  84.                     fDescriptor->cleanup(fHandle);

  85.                 if (fHandle2 != nullptr)

  86.                     fDescriptor->cleanup(fHandle2);

  87.             }

  88. 

  89.             fHandle  = nullptr;

  90.             fHandle2 = nullptr;

  91.             fDescriptor = nullptr;

  92.             fDssiDescriptor = nullptr;

  93.         }

  94. 

  95.         if (fGuiFilename != nullptr)

  96.         {

  97.             delete[] fGuiFilename;

  98.             fGuiFilename = nullptr;

  99.         }

  100. 

  101.         clearBuffers();

  102.     }

  103. 

  104.     // -------------------------------------------------------------------

  105.     // Information (base)

  106. 

  107.     PluginType getType() const noexcept override

  108.     {

  109.         return PLUGIN_DSSI;

  110.     }

  111. 

  112.     PluginCategory getCategory() const noexcept override

  113.     {

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

  115. 

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

  117.             return PLUGIN_CATEGORY_SYNTH;

  118. 

  119.         return CarlaPlugin::getCategory();

  120.     }

  121. 

  122.     long getUniqueId() const noexcept override

  123.     {

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

  125. 

  126.         return fDescriptor->UniqueID;

  127.     }

  128. 

  129.     // -------------------------------------------------------------------

  130.     // Information (count)

  131. 

  132.     // nothing

  133. 

  134.     // -------------------------------------------------------------------

  135.     // Information (current data)

  136. 

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

  138.     {

  139.         CARLA_SAFE_ASSERT_RETURN(fUsesCustomData, 0);

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

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

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

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

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

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

  146. 

  147.         int ret = 0;

  148.         unsigned long dataSize = 0;

  149. 

  150.         try {

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

  152.         } catch(...) {}

  153. 

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

  155.     }

  156. 

  157.     // -------------------------------------------------------------------

  158.     // Information (per-plugin data)

  159. 

  160.     unsigned int getOptionsAvailable() const noexcept override

  161.     {

  162. #ifdef __USE_GNU

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

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

  165. #else

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

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

  168. #endif

  169. 

  170.         unsigned int options = 0x0;

  171. 

  172.         options |= PLUGIN_OPTION_MAP_PROGRAM_CHANGES;

  173. 

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

  175.         {

  176.             options |= PLUGIN_OPTION_FIXED_BUFFERS;

  177. 

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

  179.             {

  180.                 if (pData->options & PLUGIN_OPTION_FORCE_STEREO)

  181.                     options |= PLUGIN_OPTION_FORCE_STEREO;

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

  183.                     options |= PLUGIN_OPTION_FORCE_STEREO;

  184.             }

  185.         }

  186. 

  187.         if (fUsesCustomData)

  188.             options |= PLUGIN_OPTION_USE_CHUNKS;

  189. 

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

  191.         {

  192.             options |= PLUGIN_OPTION_SEND_CONTROL_CHANGES;

  193.             options |= PLUGIN_OPTION_SEND_CHANNEL_PRESSURE;

  194.             options |= PLUGIN_OPTION_SEND_NOTE_AFTERTOUCH;

  195.             options |= PLUGIN_OPTION_SEND_PITCHBEND;

  196.             options |= PLUGIN_OPTION_SEND_ALL_SOUND_OFF;

  197.         }

  198. 

  199.         return options;

  200.     }

  201. 

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

  203.     {

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

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

  206. 

  207.         return fParamBuffers[parameterId];

  208.     }

  209. 

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

  211.     {

  212.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  213. 

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

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

  216.         else

  217.             CarlaPlugin::getLabel(strBuf);

  218.     }

  219. 

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

  221.     {

  222.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  223. 

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

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

  226.         else

  227.             CarlaPlugin::getMaker(strBuf);

  228.     }

  229. 

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

  231.     {

  232.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  233. 

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

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

  236.         else

  237.             CarlaPlugin::getCopyright(strBuf);

  238.     }

  239. 

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

  241.     {

  242.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  243. 

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

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

  246.         else

  247.             CarlaPlugin::getRealName(strBuf);

  248.     }

  249. 

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

  251.     {

  252.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

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

  254. 

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

  256. 

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

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

  259.         else

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

  261.     }

  262. 

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

  264.     // Set data (state)

  265. 

  266.     // nothing

  267. 

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

  269.     // Set data (internal stuff)

  270. 

  271.     // nothing

  272. 

  273.     // -------------------------------------------------------------------

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

  275. 

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

  277.     {

  278.         CARLA_SAFE_ASSERT_RETURN(fParamBuffers != nullptr,);

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

  280. 

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

  282.         fParamBuffers[parameterId] = fixedValue;

  283. 

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

  285.     }

  286. 

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

  288.     {

  289.         CARLA_SAFE_ASSERT_RETURN(fDssiDescriptor != nullptr,);

  290.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

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

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

  293.         CARLA_SAFE_ASSERT_RETURN(value != nullptr,);

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

  295. 

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

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

  298. 

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

  300.         {

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

  302. 

  303.             if (fHandle2 != nullptr)

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

  305.         }

  306. 

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

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

  309. 

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

  311.         {

  312.             const ScopedSingleProcessLocker spl(this, true);

  313.             reloadPrograms(false);

  314.         }

  315. 

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

  317.     }

  318. 

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

  320.     {

  321.         CARLA_SAFE_ASSERT_RETURN(fUsesCustomData,);

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

  323.         CARLA_SAFE_ASSERT_RETURN(fDssiDescriptor != nullptr,);

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

  325.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

  326.         CARLA_SAFE_ASSERT_RETURN(fHandle2 == nullptr,);

  327.         CARLA_SAFE_ASSERT_RETURN(stringData != nullptr,);

  328. 

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

  330. 

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

  332. 

  333.         const ScopedSingleProcessLocker spl(this, true);

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

  335.     }

  336. 

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

  338.     {

  339.         CARLA_SAFE_ASSERT_RETURN(fDssiDescriptor != nullptr,);

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

  341.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

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

  343. 

  344.         if (index >= 0)

  345.         {

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

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

  348. 

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

  350. 

  351.             try {

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

  353.             } catch(...) {}

  354. 

  355.             if (fHandle2 != nullptr)

  356.             {

  357.                 try {

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

  359.                 } catch(...) {}

  360.             }

  361.         }

  362. 

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

  364.     }

  365. 

  366.     // -------------------------------------------------------------------

  367.     // Set ui stuff

  368. 

  369.     void showCustomUI(const bool yesNo) override

  370.     {

  371.         if (yesNo)

  372.         {

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

  374.         }

  375.         else

  376.         {

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

  378.             {

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

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

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

  382.             }

  383. 

  384.             pData->osc.thread.stop(pData->engine->getOptions().uiBridgesTimeout);

  385.         }

  386.     }

  387. 

  388.     // -------------------------------------------------------------------

  389.     // Plugin state

  390. 

  391.     void reload() override

  392.     {

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

  394.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  395.         CARLA_SAFE_ASSERT_RETURN(fDssiDescriptor != nullptr,);

  396.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

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

  398. 

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

  400. 

  401.         // Safely disable plugin for reload

  402.         const ScopedDisabler sd(this);

  403. 

  404.         if (pData->active)

  405.             deactivate();

  406. 

  407.         clearBuffers();

  408. 

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

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

  411. 

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

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

  414. 

  415.         bool forcedStereoIn, forcedStereoOut;

  416.         forcedStereoIn = forcedStereoOut = false;

  417. 

  418.         bool needsCtrlIn, needsCtrlOut;

  419.         needsCtrlIn = needsCtrlOut = false;

  420. 

  421.         if (portCount > 0)

  422.         {

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

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

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

  426. 

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

  428.             {

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

  430. 

  431.                 if (LADSPA_IS_PORT_AUDIO(portType))

  432.                 {

  433.                     if (LADSPA_IS_PORT_INPUT(portType))

  434.                         aIns += 1;

  435.                     else if (LADSPA_IS_PORT_OUTPUT(portType))

  436.                         aOuts += 1;

  437.                 }

  438.                 else if (LADSPA_IS_PORT_CONTROL(portType))

  439.                     params += 1;

  440.             }

  441.         }

  442. 

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

  444.         {

  445.             if (fHandle2 == nullptr)

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

  447. 

  448.             if (fHandle2 != nullptr)

  449.             {

  450.                 if (aIns == 1)

  451.                 {

  452.                     aIns = 2;

  453.                     forcedStereoIn = true;

  454.                 }

  455. 

  456.                 if (aOuts == 1)

  457.                 {

  458.                     aOuts = 2;

  459.                     forcedStereoOut = true;

  460.                 }

  461.             }

  462.         }

  463. 

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

  465.         {

  466.             mIns = 1;

  467.             needsCtrlIn = true;

  468.         }

  469. 

  470.         if (aIns > 0)

  471.         {

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

  473.             fAudioInBuffers = new float*[aIns];

  474. 

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

  476.                 fAudioInBuffers[i] = nullptr;

  477.         }

  478. 

  479.         if (aOuts > 0)

  480.         {

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

  482.             fAudioOutBuffers = new float*[aOuts];

  483.             needsCtrlIn = true;

  484. 

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

  486.                 fAudioOutBuffers[i] = nullptr;

  487.         }

  488. 

  489.         if (params > 0)

  490.         {

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

  492. 

  493.             fParamBuffers = new float[params];

  494.             FLOAT_CLEAR(fParamBuffers, params);

  495.         }

  496. 

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

  498.         CarlaString portName;

  499. 

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

  501.         {

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

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

  504. 

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

  506. 

  507.             if (LADSPA_IS_PORT_AUDIO(portType))

  508.             {

  509.                 portName.clear();

  510. 

  511.                 if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  512.                 {

  513.                     portName  = pData->name;

  514.                     portName += ":";

  515.                 }

  516. 

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

  518.                 portName.truncate(portNameSize);

  519. 

  520.                 if (LADSPA_IS_PORT_INPUT(portType))

  521.                 {

  522.                     j = iAudioIn++;

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

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

  525. 

  526.                     if (forcedStereoIn)

  527.                     {

  528.                         portName += "_2";

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

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

  531.                     }

  532.                 }

  533.                 else if (LADSPA_IS_PORT_OUTPUT(portType))

  534.                 {

  535.                     j = iAudioOut++;

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

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

  538. 

  539.                     if (forcedStereoOut)

  540.                     {

  541.                         portName += "_2";

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

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

  544.                     }

  545.                 }

  546.                 else

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

  548.             }

  549.             else if (LADSPA_IS_PORT_CONTROL(portType))

  550.             {

  551.                 j = iCtrl++;

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

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

  554.                 pData->param.data[j].index  = j;

  555.                 pData->param.data[j].rindex = i;

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

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

  558. 

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

  560. 

  561.                 // min value

  562.                 if (LADSPA_IS_HINT_BOUNDED_BELOW(portRangeHints.HintDescriptor))

  563.                     min = portRangeHints.LowerBound;

  564.                 else

  565.                     min = 0.0f;

  566. 

  567.                 // max value

  568.                 if (LADSPA_IS_HINT_BOUNDED_ABOVE(portRangeHints.HintDescriptor))

  569.                     max = portRangeHints.UpperBound;

  570.                 else

  571.                     max = 1.0f;

  572. 

  573.                 if (min > max)

  574.                     max = min;

  575.                 else if (max < min)

  576.                     min = max;

  577. 

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

  579.                 {

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

  581.                     max = min + 0.1f;

  582.                 }

  583. 

  584.                 // default value

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

  586. 

  587.                 if (def < min)

  588.                     def = min;

  589.                 else if (def > max)

  590.                     def = max;

  591. 

  592.                 if (LADSPA_IS_HINT_SAMPLE_RATE(portRangeHints.HintDescriptor))

  593.                 {

  594.                     min *= sampleRate;

  595.                     max *= sampleRate;

  596.                     def *= sampleRate;

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

  598.                 }

  599. 

  600.                 if (LADSPA_IS_HINT_TOGGLED(portRangeHints.HintDescriptor))

  601.                 {

  602.                     step = max - min;

  603.                     stepSmall = step;

  604.                     stepLarge = step;

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

  606.                 }

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

  608.                 {

  609.                     step = 1.0f;

  610.                     stepSmall = 1.0f;

  611.                     stepLarge = 10.0f;

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

  613.                 }

  614.                 else

  615.                 {

  616.                     float range = max - min;

  617.                     step = range/100.0f;

  618.                     stepSmall = range/1000.0f;

  619.                     stepLarge = range/10.0f;

  620.                 }

  621. 

  622.                 if (LADSPA_IS_PORT_INPUT(portType))

  623.                 {

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

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

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

  627.                     needsCtrlIn = true;

  628. 

  629.                     // MIDI CC value

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

  631.                     {

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

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

  634.                         {

  635.                             int16_t cc = DSSI_CC_NUMBER(controller);

  636.                             if (! MIDI_IS_CONTROL_BANK_SELECT(cc))

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

  638.                         }

  639.                     }

  640.                 }

  641.                 else if (LADSPA_IS_PORT_OUTPUT(portType))

  642.                 {

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

  644.                     {

  645.                         min = 0.0f;

  646.                         max = sampleRate;

  647.                         def = 0.0f;

  648.                         step = 1.0f;

  649.                         stepSmall = 1.0f;

  650.                         stepLarge = 1.0f;

  651. 

  652.                         pData->param.data[j].type  = PARAMETER_SPECIAL;

  653.                         pData->param.data[j].hints = 0; // TODO PARAMETER_LATENCY

  654.                     }

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

  656.                     {

  657.                         def = sampleRate;

  658.                         step = 1.0f;

  659.                         stepSmall = 1.0f;

  660.                         stepLarge = 1.0f;

  661. 

  662.                         pData->param.data[j].type  = PARAMETER_SPECIAL;

  663.                         pData->param.data[j].hints = 0; // TODO PARAMETER_SAMPLE_RATE

  664.                     }

  665.                     else

  666.                     {

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

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

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

  670.                         needsCtrlOut = true;

  671.                     }

  672.                 }

  673.                 else

  674.                 {

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

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

  677.                 }

  678. 

  679.                 // extra parameter hints

  680.                 if (LADSPA_IS_HINT_LOGARITHMIC(portRangeHints.HintDescriptor))

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

  682. 

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

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

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

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

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

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

  689. 

  690.                 // Start parameters in their default values

  691.                 fParamBuffers[j] = def;

  692. 

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

  694. 

  695.                 if (fHandle2 != nullptr)

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

  697.             }

  698.             else

  699.             {

  700.                 // Not Audio or Control

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

  702. 

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

  704. 

  705.                 if (fHandle2 != nullptr)

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

  707.             }

  708.         }

  709. 

  710.         if (needsCtrlIn)

  711.         {

  712.             portName.clear();

  713. 

  714.             if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  715.             {

  716.                 portName  = pData->name;

  717.                 portName += ":";

  718.             }

  719. 

  720.             portName += "events-in";

  721.             portName.truncate(portNameSize);

  722. 

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

  724.         }

  725. 

  726.         if (needsCtrlOut)

  727.         {

  728.             portName.clear();

  729. 

  730.             if (processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT)

  731.             {

  732.                 portName  = pData->name;

  733.                 portName += ":";

  734.             }

  735. 

  736.             portName += "events-out";

  737.             portName.truncate(portNameSize);

  738. 

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

  740.         }

  741. 

  742.         if (forcedStereoIn || forcedStereoOut)

  743.             pData->options |= PLUGIN_OPTION_FORCE_STEREO;

  744.         else

  745.             pData->options &= ~PLUGIN_OPTION_FORCE_STEREO;

  746. 

  747.         // plugin hints

  748.         pData->hints = 0x0;

  749. 

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

  751.             pData->hints |= PLUGIN_IS_RTSAFE;

  752. 

  753.         if (fGuiFilename != nullptr)

  754.             pData->hints |= PLUGIN_HAS_CUSTOM_UI;

  755. 

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

  757.             pData->hints |= PLUGIN_CAN_DRYWET;

  758. 

  759.         if (aOuts > 0)

  760.             pData->hints |= PLUGIN_CAN_VOLUME;

  761. 

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

  763.             pData->hints |= PLUGIN_CAN_BALANCE;

  764. 

  765.         // extra plugin hints

  766.         pData->extraHints = 0x0;

  767. 

  768.         if (mIns > 0)

  769.             pData->extraHints |= PLUGIN_EXTRA_HINT_HAS_MIDI_IN;

  770. 

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

  772.             pData->extraHints |= PLUGIN_EXTRA_HINT_CAN_RUN_RACK;

  773. 

  774.         // check latency

  775.         if (pData->hints & PLUGIN_CAN_DRYWET)

  776.         {

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

  778.             {

  779.                 //if (pData->param.data[i].type != PARAMETER_LATENCY)

  780.                 //    continue;

  781. 

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

  783. 

  784.                 float tmpIn[aIns][2];

  785.                 float tmpOut[aOuts][2];

  786. 

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

  788.                 {

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

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

  791. 

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

  793.                 }

  794. 

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

  796.                 {

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

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

  799. 

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

  801.                 }

  802. 

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

  804.                     fDescriptor->activate(fHandle);

  805. 

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

  807. 

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

  809.                     fDescriptor->deactivate(fHandle);

  810. 

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

  812. 

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

  814.                 {

  815.                     pData->latency = latency;

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

  817.                     pData->recreateLatencyBuffers();

  818.                 }

  819. 

  820.                 break;

  821.             }

  822.         }

  823. 

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

  825.         reloadPrograms(true);

  826. 

  827.         if (pData->active)

  828.             activate();

  829. 

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

  831.     }

  832. 

  833.     void reloadPrograms(const bool init) override

  834.     {

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

  836.         uint32_t i, oldCount  = pData->midiprog.count;

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

  838. 

  839.         // Delete old programs

  840.         pData->midiprog.clear();

  841. 

  842.         // Query new programs

  843.         uint32_t count = 0;

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

  845.         {

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

  847.                 count++;

  848.         }

  849. 

  850.         if (count > 0)

  851.         {

  852.             pData->midiprog.createNew(count);

  853. 

  854.             // Update data

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

  856.             {

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

  858.                 CARLA_ASSERT(pdesc != nullptr);

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

  860. 

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

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

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

  864.             }

  865.         }

  866. 

  867. #ifndef BUILD_BRIDGE

  868.         // Update OSC Names

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

  870.         {

  871.             pData->engine->oscSend_control_set_midi_program_count(pData->id, count);

  872. 

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

  874.                 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);

  875.         }

  876. #endif

  877. 

  878.         if (init)

  879.         {

  880.             if (count > 0)

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

  882.         }

  883.         else

  884.         {

  885.             // Check if current program is invalid

  886.             bool programChanged = false;

  887. 

  888.             if (count == oldCount+1)

  889.             {

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

  891.                 pData->midiprog.current = oldCount;

  892.                 programChanged = true;

  893.             }

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

  895.             {

  896.                 // programs exist now, but not before

  897.                 pData->midiprog.current = 0;

  898.                 programChanged = true;

  899.             }

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

  901.             {

  902.                 // programs existed before, but not anymore

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

  904.                 programChanged = true;

  905.             }

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

  907.             {

  908.                 // current midi program > count

  909.                 pData->midiprog.current = 0;

  910.                 programChanged = true;

  911.             }

  912.             else

  913.             {

  914.                 // no change

  915.                 pData->midiprog.current = current;

  916.             }

  917. 

  918.             if (programChanged)

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

  920. 

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

  922.         }

  923.     }

  924. 

  925.     // -------------------------------------------------------------------

  926.     // Plugin processing

  927. 

  928.     void activate() noexcept override

  929.     {

  930.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  931.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

  932. 

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

  934.         {

  935.             try {

  936.                 fDescriptor->activate(fHandle);

  937.             } catch(...) {}

  938. 

  939.             if (fHandle2 != nullptr)

  940.             {

  941.                 try {

  942.                     fDescriptor->activate(fHandle2);

  943.                 } catch(...) {}

  944.             }

  945.         }

  946.     }

  947. 

  948.     void deactivate() noexcept override

  949.     {

  950.         CARLA_SAFE_ASSERT_RETURN(fDescriptor != nullptr,);

  951.         CARLA_SAFE_ASSERT_RETURN(fHandle != nullptr,);

  952. 

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

  954.         {

  955.             try {

  956.                 fDescriptor->deactivate(fHandle);

  957.             } catch(...) {}

  958. 

  959.             if (fHandle2 != nullptr)

  960.             {

  961.                 try {

  962.                     fDescriptor->deactivate(fHandle2);

  963.                 } catch(...) {}

  964.             }

  965.         }

  966.     }

  967. 

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

  969.     {

  970.         // --------------------------------------------------------------------------------------------------------

  971.         // Check if active

  972. 

  973.         if (! pData->active)

  974.         {

  975.             // disable any output sound

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

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

  978.             return;

  979.         }

  980. 

  981.         unsigned long midiEventCount = 0;

  982. 

  983.         // --------------------------------------------------------------------------------------------------------

  984.         // Check if needs reset

  985. 

  986.         if (pData->needsReset)

  987.         {

  988.             if (pData->options & PLUGIN_OPTION_SEND_ALL_SOUND_OFF)

  989.             {

  990.                 midiEventCount = MAX_MIDI_CHANNELS*2;

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

  992. 

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

  994.                 {

  995.                     fMidiEvents[i].type = SND_SEQ_EVENT_CONTROLLER;

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

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

  998. 

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

  1000.                     fMidiEvents[k+i].data.control.channel = i;

  1001.                     fMidiEvents[k+i].data.control.param   = MIDI_CONTROL_ALL_SOUND_OFF;

  1002.                 }

  1003.             }

  1004.             else if (pData->ctrlChannel >= 0 && pData->ctrlChannel < MAX_MIDI_CHANNELS)

  1005.             {

  1006.                 midiEventCount = MAX_MIDI_NOTE;

  1007.                 carla_zeroStruct<snd_seq_event_t>(fMidiEvents, midiEventCount);

  1008. 

  1009.                 for (unsigned char i=0; i < MAX_MIDI_NOTE; ++i)

  1010.                 {

  1011.                     fMidiEvents[i].type = SND_SEQ_EVENT_NOTEOFF;

  1012.                     fMidiEvents[i].data.note.channel = pData->ctrlChannel;

  1013.                     fMidiEvents[i].data.note.note    = i;

  1014.                 }

  1015.             }

  1016. 

  1017.             if (pData->latency > 0)

  1018.             {

  1019.                 for (uint32_t i=0; i < pData->audioIn.count; ++i)

  1020.                     FLOAT_CLEAR(pData->latencyBuffers[i], pData->latency);

  1021.             }

  1022. 

  1023.             pData->needsReset = false;

  1024. 

  1025.             CARLA_PROCESS_CONTINUE_CHECK;

  1026.         }

  1027. 

  1028.         // --------------------------------------------------------------------------------------------------------

  1029.         // Event Input and Processing

  1030. 

  1031.         if (pData->event.portIn != nullptr)

  1032.         {

  1033.             // ----------------------------------------------------------------------------------------------------

  1034.             // MIDI Input (External)

  1035. 

  1036.             if (pData->extNotes.mutex.tryLock())

  1037.             {

  1038.                 while (midiEventCount < kPluginMaxMidiEvents && ! pData->extNotes.data.isEmpty())

  1039.                 {

  1040.                     const ExternalMidiNote& note(pData->extNotes.data.getFirst(true));

  1041. 

  1042.                     CARLA_SAFE_ASSERT_CONTINUE(note.channel >= 0 && note.channel < MAX_MIDI_CHANNELS);

  1043. 

  1044.                     snd_seq_event_t& midiEvent(fMidiEvents[midiEventCount++]);

  1045.                     carla_zeroStruct<snd_seq_event_t>(midiEvent);

  1046. 

  1047.                     midiEvent.type               = (note.velo > 0) ? SND_SEQ_EVENT_NOTEON : SND_SEQ_EVENT_NOTEOFF;

  1048.                     midiEvent.data.note.channel  = note.channel;

  1049.                     midiEvent.data.note.note     = note.note;

  1050.                     midiEvent.data.note.velocity = note.velo;

  1051.                 }

  1052. 

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

  1054. 

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

  1056. 

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

  1058.             // Event Input (System)

  1059. 

  1060.             bool allNotesOffSent  = false;

  1061.             bool isSampleAccurate = (pData->options & PLUGIN_OPTION_FIXED_BUFFERS) == 0;

  1062. 

  1063.             uint32_t time, numEvents = pData->event.portIn->getEventCount();

  1064.             uint32_t startTime  = 0;

  1065.             uint32_t timeOffset = 0;

  1066.             uint32_t nextBankId = 0;

  1067. 

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

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

  1070. 

  1071.             for (uint32_t i=0; i < numEvents; ++i)

  1072.             {

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

  1074. 

  1075.                 time = event.time;

  1076. 

  1077.                 CARLA_ASSERT_INT2(time < frames, time, frames);

  1078. 

  1079.                 if (time >= frames)

  1080.                     continue;

  1081. 

  1082.                 CARLA_ASSERT_INT2(time >= timeOffset, time, timeOffset);

  1083. 

  1084.                 if (time > timeOffset && isSampleAccurate)

  1085.                 {

  1086.                     if (processSingle(inBuffer, outBuffer, time - timeOffset, timeOffset, midiEventCount))

  1087.                     {

  1088.                         startTime  = 0;

  1089.                         timeOffset = time;

  1090.                         midiEventCount = 0;

  1091. 

  1092.                         if (pData->midiprog.current >= 0 && pData->midiprog.count > 0)

  1093.                             nextBankId = pData->midiprog.data[pData->midiprog.current].bank;

  1094.                         else

  1095.                             nextBankId = 0;

  1096.                     }

  1097.                     else

  1098.                         startTime += timeOffset;

  1099.                 }

  1100. 

  1101.                 switch (event.type)

  1102.                 {

  1103.                 case kEngineEventTypeNull:

  1104.                     break;

  1105. 

  1106.                 case kEngineEventTypeControl:

  1107.                 {

  1108.                     const EngineControlEvent& ctrlEvent(event.ctrl);

  1109. 

  1110.                     switch (ctrlEvent.type)

  1111.                     {

  1112.                     case kEngineControlEventTypeNull:

  1113.                         break;

  1114. 

  1115.                     case kEngineControlEventTypeParameter:

  1116.                     {

  1117. #ifndef BUILD_BRIDGE

  1118.                         // Control backend stuff

  1119.                         if (event.channel == pData->ctrlChannel)

  1120.                         {

  1121.                             float value;

  1122. 

  1123.                             if (MIDI_IS_CONTROL_BREATH_CONTROLLER(ctrlEvent.param) && (pData->hints & PLUGIN_CAN_DRYWET) != 0)

  1124.                             {

  1125.                                 value = ctrlEvent.value;

  1126.                                 setDryWet(value, false, false);

  1127.                                 pData->postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_DRYWET, 0, value);

  1128.                             }

  1129. 

  1130.                             if (MIDI_IS_CONTROL_CHANNEL_VOLUME(ctrlEvent.param) && (pData->hints & PLUGIN_CAN_VOLUME) != 0)

  1131.                             {

  1132.                                 value = ctrlEvent.value*127.0f/100.0f;

  1133.                                 setVolume(value, false, false);

  1134.                                 pData->postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_VOLUME, 0, value);

  1135.                             }

  1136. 

  1137.                             if (MIDI_IS_CONTROL_BALANCE(ctrlEvent.param) && (pData->hints & PLUGIN_CAN_BALANCE) != 0)

  1138.                             {

  1139.                                 float left, right;

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

  1141. 

  1142.                                 if (value < 0.0f)

  1143.                                 {

  1144.                                     left  = -1.0f;

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

  1146.                                 }

  1147.                                 else if (value > 0.0f)

  1148.                                 {

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

  1150.                                     right = 1.0f;

  1151.                                 }

  1152.                                 else

  1153.                                 {

  1154.                                     left  = -1.0f;

  1155.                                     right = 1.0f;

  1156.                                 }

  1157. 

  1158.                                 setBalanceLeft(left, false, false);

  1159.                                 setBalanceRight(right, false, false);

  1160.                                 pData->postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_BALANCE_LEFT, 0, left);

  1161.                                 pData->postponeRtEvent(kPluginPostRtEventParameterChange, PARAMETER_BALANCE_RIGHT, 0, right);

  1162.                             }

  1163.                         }

  1164. #endif

  1165. 

  1166.                         // Control plugin parameters

  1167.                         for (uint32_t k=0; k < pData->param.count; ++k)

  1168.                         {

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

  1170.                                 continue;

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

  1172.                                 continue;

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

  1174.                                 continue;

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

  1176.                                 continue;

  1177. 

  1178.                             float value;

  1179. 

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

  1181.                             {

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

  1183.                             }

  1184.                             else

  1185.                             {

  1186.                                 value = pData->param.ranges[k].getUnnormalizedValue(ctrlEvent.value);

  1187. 

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

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

  1190.                             }

  1191. 

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

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

  1194.                         }

  1195. 

  1196.                         if ((pData->options & PLUGIN_OPTION_SEND_CONTROL_CHANGES) != 0 && ctrlEvent.param <= 0x5F)

  1197.                         {

  1198.                             if (midiEventCount >= kPluginMaxMidiEvents)

  1199.                                 continue;

  1200. 

  1201.                             snd_seq_event_t& midiEvent(fMidiEvents[midiEventCount++]);

  1202.                             carla_zeroStruct<snd_seq_event_t>(midiEvent);

  1203. 

  1204.                             midiEvent.time.tick = isSampleAccurate ? startTime : time;

  1205. 

  1206.                             midiEvent.type = SND_SEQ_EVENT_CONTROLLER;

  1207.                             midiEvent.data.control.channel = event.channel;

  1208.                             midiEvent.data.control.param   = ctrlEvent.param;

  1209.                             midiEvent.data.control.value   = int8_t(ctrlEvent.value*127.0f);

  1210.                         }

  1211. 

  1212.                         break;

  1213.                     }

  1214. 

  1215.                     case kEngineControlEventTypeMidiBank:

  1216.                         if (event.channel == pData->ctrlChannel && (pData->options & PLUGIN_OPTION_MAP_PROGRAM_CHANGES) != 0)

  1217.                             nextBankId = ctrlEvent.param;

  1218.                         break;

  1219. 

  1220.                     case kEngineControlEventTypeMidiProgram:

  1221.                         if (event.channel == pData->ctrlChannel && (pData->options & PLUGIN_OPTION_MAP_PROGRAM_CHANGES) != 0)

  1222.                         {

  1223.                             const uint32_t nextProgramId = ctrlEvent.param;

  1224. 

  1225.                             for (uint32_t k=0; k < pData->midiprog.count; ++k)

  1226.                             {

  1227.                                 if (pData->midiprog.data[k].bank == nextBankId && pData->midiprog.data[k].program == nextProgramId)

  1228.                                 {

  1229.                                     setMidiProgram(k, false, false, false);

  1230.                                     pData->postponeRtEvent(kPluginPostRtEventMidiProgramChange, k, 0, 0.0f);

  1231.                                     break;

  1232.                                 }

  1233.                             }

  1234.                         }

  1235.                         break;

  1236. 

  1237.                     case kEngineControlEventTypeAllSoundOff:

  1238.                         if (pData->options & PLUGIN_OPTION_SEND_ALL_SOUND_OFF)

  1239.                         {

  1240.                             if (midiEventCount >= kPluginMaxMidiEvents)

  1241.                                 continue;

  1242. 

  1243.                             snd_seq_event_t& midiEvent(fMidiEvents[midiEventCount++]);

  1244.                             carla_zeroStruct<snd_seq_event_t>(midiEvent);

  1245. 

  1246.                             midiEvent.time.tick = isSampleAccurate ? startTime : time;

  1247. 

  1248.                             midiEvent.type = SND_SEQ_EVENT_CONTROLLER;

  1249.                             midiEvent.data.control.channel = event.channel;

  1250.                             midiEvent.data.control.param   = MIDI_CONTROL_ALL_SOUND_OFF;

  1251.                         }

  1252.                         break;

  1253. 

  1254.                     case kEngineControlEventTypeAllNotesOff:

  1255.                         if (pData->options & PLUGIN_OPTION_SEND_ALL_SOUND_OFF)

  1256.                         {

  1257.                             if (event.channel == pData->ctrlChannel && ! allNotesOffSent)

  1258.                             {

  1259.                                 allNotesOffSent = true;

  1260.                                 sendMidiAllNotesOffToCallback();

  1261.                             }

  1262. 

  1263.                             if (midiEventCount >= kPluginMaxMidiEvents)

  1264.                                 continue;

  1265. 

  1266.                             snd_seq_event_t& midiEvent(fMidiEvents[midiEventCount++]);

  1267.                             carla_zeroStruct<snd_seq_event_t>(midiEvent);

  1268. 

  1269.                             midiEvent.time.tick = isSampleAccurate ? startTime : time;

  1270. 

  1271.                             midiEvent.type = SND_SEQ_EVENT_CONTROLLER;

  1272.                             midiEvent.data.control.channel = event.channel;

  1273.                             midiEvent.data.control.param   = MIDI_CONTROL_ALL_NOTES_OFF;

  1274. 

  1275.                             midiEventCount += 1;

  1276.                         }

  1277.                         break;

  1278.                     }

  1279. 

  1280.                     break;

  1281.                 }

  1282. 

  1283.                 case kEngineEventTypeMidi:

  1284.                 {

  1285.                     if (midiEventCount >= kPluginMaxMidiEvents)

  1286.                         continue;

  1287. 

  1288.                     const EngineMidiEvent& engineEvent(event.midi);

  1289. 

  1290.                     uint8_t status  = uint8_t(MIDI_GET_STATUS_FROM_DATA(engineEvent.data));

  1291.                     uint8_t channel = event.channel;

  1292. 

  1293.                     // Fix bad note-off (per DSSI spec)

  1294.                     if (MIDI_IS_STATUS_NOTE_ON(status) && engineEvent.data[2] == 0)

  1295.                         status = MIDI_STATUS_NOTE_OFF;

  1296. 

  1297.                     snd_seq_event_t& midiEvent(fMidiEvents[midiEventCount]);

  1298.                     carla_zeroStruct<snd_seq_event_t>(midiEvent);

  1299. 

  1300.                     midiEvent.time.tick = isSampleAccurate ? startTime : time;

  1301. 

  1302.                     switch (status)

  1303.                     {

  1304.                     case MIDI_STATUS_NOTE_OFF:

  1305.                     {

  1306.                         const uint8_t note = engineEvent.data[1];

  1307. 

  1308.                         midiEvent.type = SND_SEQ_EVENT_NOTEOFF;

  1309.                         midiEvent.data.note.channel = channel;

  1310.                         midiEvent.data.note.note    = note;

  1311. 

  1312.                         pData->postponeRtEvent(kPluginPostRtEventNoteOff, channel, note, 0.0f);

  1313.                         break;

  1314.                     }

  1315.                     case MIDI_STATUS_NOTE_ON:

  1316.                     {

  1317.                         const uint8_t note = engineEvent.data[1];

  1318.                         const uint8_t velo = engineEvent.data[2];

  1319. 

  1320.                         midiEvent.type = SND_SEQ_EVENT_NOTEON;

  1321.                         midiEvent.data.note.channel  = channel;

  1322.                         midiEvent.data.note.note     = note;

  1323.                         midiEvent.data.note.velocity = velo;

  1324. 

  1325.                         pData->postponeRtEvent(kPluginPostRtEventNoteOn, channel, note, velo);

  1326.                         break;

  1327.                     }

  1328.                     case MIDI_STATUS_POLYPHONIC_AFTERTOUCH:

  1329.                     {

  1330.                         if (pData->options & PLUGIN_OPTION_SEND_NOTE_AFTERTOUCH)

  1331.                         {

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

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

  1334. 

  1335.                             midiEvent.type = SND_SEQ_EVENT_KEYPRESS;

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

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

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

  1339.                         }

  1340.                         break;

  1341.                     }

  1342.                     case MIDI_STATUS_CONTROL_CHANGE:

  1343.                     {

  1344.                         if (pData->options & PLUGIN_OPTION_SEND_CONTROL_CHANGES)

  1345.                         {

  1346.                             const uint8_t control = engineEvent.data[1];

  1347.                             const uint8_t value   = engineEvent.data[2];

  1348. 

  1349.                             midiEvent.type = SND_SEQ_EVENT_CONTROLLER;

  1350.                             midiEvent.data.control.channel = channel;

  1351.                             midiEvent.data.control.param   = control;

  1352.                             midiEvent.data.control.value   = value;

  1353.                         }

  1354.                         break;

  1355.                     }

  1356.                     case MIDI_STATUS_CHANNEL_PRESSURE:

  1357.                     {

  1358.                         if (pData->options & PLUGIN_OPTION_SEND_CHANNEL_PRESSURE)

  1359.                         {

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

  1361. 

  1362.                             midiEvent.type = SND_SEQ_EVENT_CHANPRESS;

  1363.                             midiEvent.data.control.channel = channel;

  1364.                             midiEvent.data.control.value   = pressure;

  1365.                         }

  1366.                         break;

  1367.                     }

  1368.                     case MIDI_STATUS_PITCH_WHEEL_CONTROL:

  1369.                     {

  1370.                         if (pData->options & PLUGIN_OPTION_SEND_PITCHBEND)

  1371.                         {

  1372.                             const uint8_t lsb = engineEvent.data[1];

  1373.                             const uint8_t msb = engineEvent.data[2];

  1374. 

  1375.                             midiEvent.type = SND_SEQ_EVENT_PITCHBEND;

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

  1377.                             midiEvent.data.control.value   = ((msb << 7) | lsb) - 8192;

  1378.                         }

  1379.                         break;

  1380.                     }

  1381.                     default:

  1382.                         continue;

  1383.                         break;

  1384.                     }

  1385. 

  1386.                     midiEventCount += 1;

  1387.                     break;

  1388.                 }

  1389.                 }

  1390.             }

  1391. 

  1392.             pData->postRtEvents.trySplice();

  1393. 

  1394.             if (frames > timeOffset)

  1395.                 processSingle(inBuffer, outBuffer, frames - timeOffset, timeOffset, midiEventCount);

  1396. 

  1397.         } // End of Event Input and Processing

  1398. 

  1399.         // --------------------------------------------------------------------------------------------------------

  1400.         // Plugin processing (no events)

  1401. 

  1402.         else

  1403.         {

  1404.             processSingle(inBuffer, outBuffer, frames, 0, midiEventCount);

  1405. 

  1406.         } // End of Plugin processing (no events)

  1407. 

  1408.         CARLA_PROCESS_CONTINUE_CHECK;

  1409. 

  1410.         // --------------------------------------------------------------------------------------------------------

  1411.         // Control Output

  1412. 

  1413.         if (pData->event.portOut != nullptr)

  1414.         {

  1415.             uint8_t  channel;

  1416.             uint16_t param;

  1417.             float    value;

  1418. 

  1419.             for (uint32_t k=0; k < pData->param.count; ++k)

  1420.             {

  1421.                 if (pData->param.data[k].type != PARAMETER_OUTPUT)

  1422.                     continue;

  1423. 

  1424.                 pData->param.ranges[k].fixValue(fParamBuffers[k]);

  1425. 

  1426.                 if (pData->param.data[k].midiCC > 0)

  1427.                 {

  1428.                     channel = pData->param.data[k].midiChannel;

  1429.                     param   = static_cast<uint16_t>(pData->param.data[k].midiCC);

  1430.                     value   = pData->param.ranges[k].getNormalizedValue(fParamBuffers[k]);

  1431.                     pData->event.portOut->writeControlEvent(0, channel, kEngineControlEventTypeParameter, param, value);

  1432.                 }

  1433.             }

  1434. 

  1435.         } // End of Control Output

  1436.     }

  1437. 

  1438.     bool processSingle(float** const inBuffer, float** const outBuffer, const uint32_t frames, const uint32_t timeOffset, const unsigned long midiEventCount)

  1439.     {

  1440.         CARLA_SAFE_ASSERT_RETURN(frames > 0, false);

  1441. 

  1442.         if (pData->audioIn.count > 0)

  1443.         {

  1444.             CARLA_SAFE_ASSERT_RETURN(inBuffer != nullptr, false);

  1445.         }

  1446.         if (pData->audioOut.count > 0)

  1447.         {

  1448.             CARLA_SAFE_ASSERT_RETURN(outBuffer != nullptr, false);

  1449.         }

  1450. 

  1451.         // --------------------------------------------------------------------------------------------------------

  1452.         // Try lock, silence otherwise

  1453. 

  1454.         if (pData->engine->isOffline())

  1455.         {

  1456.             pData->singleMutex.lock();

  1457.         }

  1458.         else if (! pData->singleMutex.tryLock())

  1459.         {

  1460.             for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1461.             {

  1462.                 for (uint32_t k=0; k < frames; ++k)

  1463.                     outBuffer[i][k+timeOffset] = 0.0f;

  1464.             }

  1465. 

  1466.             return false;

  1467.         }

  1468. 

  1469.         // --------------------------------------------------------------------------------------------------------

  1470.         // Reset audio buffers

  1471. 

  1472.         for (uint32_t i=0; i < pData->audioIn.count; ++i)

  1473.             FLOAT_COPY(fAudioInBuffers[i], inBuffer[i]+timeOffset, frames);

  1474. 

  1475.         for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1476.             FLOAT_CLEAR(fAudioOutBuffers[i], frames);

  1477. 

  1478.         // --------------------------------------------------------------------------------------------------------

  1479.         // Run plugin

  1480. 

  1481.         if (fDssiDescriptor->run_synth != nullptr)

  1482.         {

  1483.             fDssiDescriptor->run_synth(fHandle, frames, fMidiEvents, midiEventCount);

  1484. 

  1485.             if (fHandle2 != nullptr)

  1486.                 fDssiDescriptor->run_synth(fHandle2, frames, fMidiEvents, midiEventCount);

  1487.         }

  1488.         else if (fDssiDescriptor->run_multiple_synths != nullptr)

  1489.         {

  1490.             unsigned long instances = (fHandle2 != nullptr) ? 2 : 1;

  1491.             LADSPA_Handle handlePtr[2] = { fHandle, fHandle2 };

  1492.             snd_seq_event_t* midiEventsPtr[2] = { fMidiEvents, fMidiEvents };

  1493.             unsigned long midiEventCountPtr[2] = { midiEventCount, midiEventCount };

  1494.             fDssiDescriptor->run_multiple_synths(instances, handlePtr, frames, midiEventsPtr, midiEventCountPtr);

  1495.         }

  1496.         else

  1497.         {

  1498.             fDescriptor->run(fHandle, frames);

  1499. 

  1500.             if (fHandle2 != nullptr)

  1501.                 fDescriptor->run(fHandle2, frames);

  1502.         }

  1503. 

  1504. #ifndef BUILD_BRIDGE

  1505.         // --------------------------------------------------------------------------------------------------------

  1506.         // Post-processing (dry/wet, volume and balance)

  1507. 

  1508.         {

  1509.             const bool doDryWet  = (pData->hints & PLUGIN_CAN_DRYWET) != 0 && pData->postProc.dryWet != 1.0f;

  1510.             const bool doBalance = (pData->hints & PLUGIN_CAN_BALANCE) != 0 && (pData->postProc.balanceLeft != -1.0f || pData->postProc.balanceRight != 1.0f);

  1511. 

  1512.             bool isPair;

  1513.             float bufValue, oldBufLeft[doBalance ? frames : 1];

  1514. 

  1515.             for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1516.             {

  1517.                 // Dry/Wet

  1518.                 if (doDryWet)

  1519.                 {

  1520.                     for (uint32_t k=0; k < frames; ++k)

  1521.                     {

  1522.                         // TODO

  1523.                         //if (k < pData->latency && pData->latency < frames)

  1524.                         //    bufValue = (pData->audioIn.count == 1) ? pData->latencyBuffers[0][k] : pData->latencyBuffers[i][k];

  1525.                         //else

  1526.                         //    bufValue = (pData->audioIn.count == 1) ? inBuffer[0][k-m_latency] : inBuffer[i][k-m_latency];

  1527. 

  1528.                         bufValue = fAudioInBuffers[(pData->audioIn.count == 1) ? 0 : i][k];

  1529.                         fAudioOutBuffers[i][k] = (fAudioOutBuffers[i][k] * pData->postProc.dryWet) + (bufValue * (1.0f - pData->postProc.dryWet));

  1530.                     }

  1531.                 }

  1532. 

  1533.                 // Balance

  1534.                 if (doBalance)

  1535.                 {

  1536.                     isPair = (i % 2 == 0);

  1537. 

  1538.                     if (isPair)

  1539.                     {

  1540.                         CARLA_ASSERT(i+1 < pData->audioOut.count);

  1541.                         FLOAT_COPY(oldBufLeft, fAudioOutBuffers[i], frames);

  1542.                     }

  1543. 

  1544.                     float balRangeL = (pData->postProc.balanceLeft  + 1.0f)/2.0f;

  1545.                     float balRangeR = (pData->postProc.balanceRight + 1.0f)/2.0f;

  1546. 

  1547.                     for (uint32_t k=0; k < frames; ++k)

  1548.                     {

  1549.                         if (isPair)

  1550.                         {

  1551.                             // left

  1552.                             fAudioOutBuffers[i][k]  = oldBufLeft[k]            * (1.0f - balRangeL);

  1553.                             fAudioOutBuffers[i][k] += fAudioOutBuffers[i+1][k] * (1.0f - balRangeR);

  1554.                         }

  1555.                         else

  1556.                         {

  1557.                             // right

  1558.                             fAudioOutBuffers[i][k]  = fAudioOutBuffers[i][k] * balRangeR;

  1559.                             fAudioOutBuffers[i][k] += oldBufLeft[k]          * balRangeL;

  1560.                         }

  1561.                     }

  1562.                 }

  1563. 

  1564.                 // Volume (and buffer copy)

  1565.                 {

  1566.                     for (uint32_t k=0; k < frames; ++k)

  1567.                         outBuffer[i][k+timeOffset] = fAudioOutBuffers[i][k] * pData->postProc.volume;

  1568.                 }

  1569.             }

  1570. 

  1571. #if 0

  1572.             // Latency, save values for next callback, TODO

  1573.             if (pData->latency > 0 && pData->latency < frames)

  1574.             {

  1575.                 for (i=0; i < pData->audioIn.count; ++i)

  1576.                     FloatVectorOperations::copy(pData->latencyBuffers[i], inBuffer[i] + (frames - pData->latency), pData->latency);

  1577.             }

  1578. #endif

  1579.         } // End of Post-processing

  1580. 

  1581. #else // BUILD_BRIDGE

  1582.         for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1583.         {

  1584.             for (uint32_t k=0; k < frames; ++k)

  1585.                 outBuffer[i][k+timeOffset] = fAudioOutBuffers[i][k];

  1586.         }

  1587. #endif

  1588. 

  1589.         // --------------------------------------------------------------------------------------------------------

  1590. 

  1591.         pData->singleMutex.unlock();

  1592.         return true;

  1593.     }

  1594. 

  1595.     void bufferSizeChanged(const uint32_t newBufferSize) override

  1596.     {

  1597.         CARLA_ASSERT_INT(newBufferSize > 0, newBufferSize);

  1598.         carla_debug("DssiPlugin::bufferSizeChanged(%i) - start", newBufferSize);

  1599. 

  1600.         for (uint32_t i=0; i < pData->audioIn.count; ++i)

  1601.         {

  1602.             if (fAudioInBuffers[i] != nullptr)

  1603.                 delete[] fAudioInBuffers[i];

  1604.             fAudioInBuffers[i] = new float[newBufferSize];

  1605.         }

  1606. 

  1607.         for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1608.         {

  1609.             if (fAudioOutBuffers[i] != nullptr)

  1610.                 delete[] fAudioOutBuffers[i];

  1611.             fAudioOutBuffers[i] = new float[newBufferSize];

  1612.         }

  1613. 

  1614.         if (fHandle2 == nullptr)

  1615.         {

  1616.             for (uint32_t i=0; i < pData->audioIn.count; ++i)

  1617.             {

  1618.                 CARLA_ASSERT(fAudioInBuffers[i] != nullptr);

  1619.                 fDescriptor->connect_port(fHandle, pData->audioIn.ports[i].rindex, fAudioInBuffers[i]);

  1620.             }

  1621. 

  1622.             for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1623.             {

  1624.                 CARLA_ASSERT(fAudioOutBuffers[i] != nullptr);

  1625.                 fDescriptor->connect_port(fHandle, pData->audioOut.ports[i].rindex, fAudioOutBuffers[i]);

  1626.             }

  1627.         }

  1628.         else

  1629.         {

  1630.             if (pData->audioIn.count > 0)

  1631.             {

  1632.                 CARLA_ASSERT(pData->audioIn.count == 2);

  1633.                 CARLA_ASSERT(fAudioInBuffers[0] != nullptr);

  1634.                 CARLA_ASSERT(fAudioInBuffers[1] != nullptr);

  1635. 

  1636.                 fDescriptor->connect_port(fHandle,  pData->audioIn.ports[0].rindex, fAudioInBuffers[0]);

  1637.                 fDescriptor->connect_port(fHandle2, pData->audioIn.ports[1].rindex, fAudioInBuffers[1]);

  1638.             }

  1639. 

  1640.             if (pData->audioOut.count > 0)

  1641.             {

  1642.                 CARLA_ASSERT(pData->audioOut.count == 2);

  1643.                 CARLA_ASSERT(fAudioOutBuffers[0] != nullptr);

  1644.                 CARLA_ASSERT(fAudioOutBuffers[1] != nullptr);

  1645. 

  1646.                 fDescriptor->connect_port(fHandle,  pData->audioOut.ports[0].rindex, fAudioOutBuffers[0]);

  1647.                 fDescriptor->connect_port(fHandle2, pData->audioOut.ports[1].rindex, fAudioOutBuffers[1]);

  1648.             }

  1649.         }

  1650. 

  1651.         carla_debug("DssiPlugin::bufferSizeChanged(%i) - end", newBufferSize);

  1652.     }

  1653. 

  1654.     void sampleRateChanged(const double newSampleRate) override

  1655.     {

  1656.         CARLA_ASSERT_INT(newSampleRate > 0.0, (int)newSampleRate);

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

  1658. 

  1659.         // TODO

  1660.         (void)newSampleRate;

  1661. 

  1662.         carla_debug("DssiPlugin::sampleRateChanged(%g) - end", newSampleRate);

  1663.     }

  1664. 

  1665.     // -------------------------------------------------------------------

  1666.     // Plugin buffers

  1667. 

  1668.     void clearBuffers() override

  1669.     {

  1670.         carla_debug("DssiPlugin::clearBuffers() - start");

  1671. 

  1672.         if (fAudioInBuffers != nullptr)

  1673.         {

  1674.             for (uint32_t i=0; i < pData->audioIn.count; ++i)

  1675.             {

  1676.                 if (fAudioInBuffers[i] != nullptr)

  1677.                 {

  1678.                     delete[] fAudioInBuffers[i];

  1679.                     fAudioInBuffers[i] = nullptr;

  1680.                 }

  1681.             }

  1682. 

  1683.             delete[] fAudioInBuffers;

  1684.             fAudioInBuffers = nullptr;

  1685.         }

  1686. 

  1687.         if (fAudioOutBuffers != nullptr)

  1688.         {

  1689.             for (uint32_t i=0; i < pData->audioOut.count; ++i)

  1690.             {

  1691.                 if (fAudioOutBuffers[i] != nullptr)

  1692.                 {

  1693.                     delete[] fAudioOutBuffers[i];

  1694.                     fAudioOutBuffers[i] = nullptr;

  1695.                 }

  1696.             }

  1697. 

  1698.             delete[] fAudioOutBuffers;

  1699.             fAudioOutBuffers = nullptr;

  1700.         }

  1701. 

  1702.         if (fParamBuffers != nullptr)

  1703.         {

  1704.             delete[] fParamBuffers;

  1705.             fParamBuffers = nullptr;

  1706.         }

  1707. 

  1708.         CarlaPlugin::clearBuffers();

  1709. 

  1710.         carla_debug("DssiPlugin::clearBuffers() - end");

  1711.     }

  1712. 

  1713.     // -------------------------------------------------------------------

  1714.     // Post-poned UI Stuff

  1715. 

  1716.     void uiParameterChange(const uint32_t index, const float value) noexcept override

  1717.     {

  1718.         CARLA_SAFE_ASSERT_RETURN(index < pData->param.count,);

  1719. 

  1720.         if (pData->osc.data.target == nullptr)

  1721.             return;

  1722. 

  1723.         osc_send_control(pData->osc.data, pData->param.data[index].rindex, value);

  1724.     }

  1725. 

  1726.     void uiMidiProgramChange(const uint32_t index) noexcept override

  1727.     {

  1728.         CARLA_SAFE_ASSERT_RETURN(index < pData->midiprog.count,);

  1729. 

  1730.         if (pData->osc.data.target == nullptr)

  1731.             return;

  1732. 

  1733.         osc_send_program(pData->osc.data, pData->midiprog.data[index].bank, pData->midiprog.data[index].program);

  1734.     }

  1735. 

  1736.     void uiNoteOn(const uint8_t channel, const uint8_t note, const uint8_t velo) noexcept override

  1737.     {

  1738.         CARLA_SAFE_ASSERT_RETURN(channel < MAX_MIDI_CHANNELS,);

  1739.         CARLA_SAFE_ASSERT_RETURN(note < MAX_MIDI_NOTE,);

  1740.         CARLA_SAFE_ASSERT_RETURN(velo > 0 && velo < MAX_MIDI_VALUE,);

  1741. 

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

  1743.             return;

  1744. 

  1745. #if 0

  1746.         uint8_t midiData[4] = { 0 };

  1747.         midiData[1] = MIDI_STATUS_NOTE_ON + channel;

  1748.         midiData[2] = note;

  1749.         midiData[3] = velo;

  1750. 

  1751.         osc_send_midi(pData->osc.data, midiData);

  1752. #endif

  1753.     }

  1754. 

  1755.     void uiNoteOff(const uint8_t channel, const uint8_t note) noexcept override

  1756.     {

  1757.         CARLA_SAFE_ASSERT_RETURN(channel < MAX_MIDI_CHANNELS,);

  1758.         CARLA_SAFE_ASSERT_RETURN(note < MAX_MIDI_NOTE,);

  1759. 

  1760.         if (pData->osc.data.target == nullptr)

  1761.             return;

  1762. 

  1763. #if 0

  1764.         uint8_t midiData[4] = { 0 };

  1765.         midiData[1] = MIDI_STATUS_NOTE_OFF + channel;

  1766.         midiData[2] = note;

  1767. 

  1768.         osc_send_midi(pData->osc.data, midiData);

  1769. #endif

  1770.     }

  1771. 

  1772.     // -------------------------------------------------------------------

  1773. 

  1774.     const void* getExtraStuff() const noexcept override

  1775.     {

  1776.         return fGuiFilename;

  1777.     }

  1778. 

  1779.     bool init(const char* const filename, const char* const name, const char* const label)

  1780.     {

  1781.         CARLA_SAFE_ASSERT_RETURN(pData->engine != nullptr, false);

  1782. 

  1783.         // ---------------------------------------------------------------

  1784.         // first checks

  1785. 

  1786.         if (pData->client != nullptr)

  1787.         {

  1788.             pData->engine->setLastError("Plugin client is already registered");

  1789.             return false;

  1790.         }

  1791. 

  1792.         if (filename == nullptr || filename[0] == '\0')

  1793.         {

  1794.             pData->engine->setLastError("null filename");

  1795.             return false;

  1796.         }

  1797. 

  1798.         if (label == nullptr || label[0] == '\0')

  1799.         {

  1800.             pData->engine->setLastError("null label");

  1801.             return false;

  1802.         }

  1803. 

  1804.         // ---------------------------------------------------------------

  1805.         // open DLL

  1806. 

  1807.         if (! pData->libOpen(filename))

  1808.         {

  1809.             pData->engine->setLastError(lib_error(filename));

  1810.             return false;

  1811.         }

  1812. 

  1813.         // ---------------------------------------------------------------

  1814.         // get DLL main entry

  1815. 

  1816.         const DSSI_Descriptor_Function descFn = (DSSI_Descriptor_Function)pData->libSymbol("dssi_descriptor");

  1817. 

  1818.         if (descFn == nullptr)

  1819.         {

  1820.             pData->engine->setLastError("Could not find the DSSI Descriptor in the plugin library");

  1821.             return false;

  1822.         }

  1823. 

  1824.         // ---------------------------------------------------------------

  1825.         // get descriptor that matches label

  1826. 

  1827.         unsigned long i = 0;

  1828.         while ((fDssiDescriptor = descFn(i++)) != nullptr)

  1829.         {

  1830.             fDescriptor = fDssiDescriptor->LADSPA_Plugin;

  1831.             if (fDescriptor != nullptr && fDescriptor->Label != nullptr && std::strcmp(fDescriptor->Label, label) == 0)

  1832.                 break;

  1833.         }

  1834. 

  1835.         if (fDescriptor == nullptr || fDssiDescriptor == nullptr)

  1836.         {

  1837.             pData->engine->setLastError("Could not find the requested plugin label in the plugin library");

  1838.             return false;

  1839.         }

  1840. 

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

  1842.         // check if uses global instance

  1843. 

  1844.         if (fDssiDescriptor->run_synth == nullptr && fDssiDescriptor->run_multiple_synths != nullptr)

  1845.         {

  1846.             if (! addUniqueMultiSynth(fDescriptor->Label))

  1847.             {

  1848.                 pData->engine->setLastError("This plugin uses a global instance and can't be used more than once safely");

  1849.                 return false;

  1850.             }

  1851.         }

  1852. 

  1853.         // ---------------------------------------------------------------

  1854.         // get info

  1855. 

  1856.         if (name != nullptr && name[0] != '\0')

  1857.             pData->name = pData->engine->getUniquePluginName(name);

  1858.         else if (fDescriptor->Name != nullptr && fDescriptor->Name[0] != '\0')

  1859.             pData->name = pData->engine->getUniquePluginName(fDescriptor->Name);

  1860.         else

  1861.             pData->name = pData->engine->getUniquePluginName(fDescriptor->Label);

  1862. 

  1863.         pData->filename = carla_strdup(filename);

  1864. 

  1865.         // ---------------------------------------------------------------

  1866.         // register client

  1867. 

  1868.         pData->client = pData->engine->addClient(this);

  1869. 

  1870.         if (pData->client == nullptr || ! pData->client->isOk())

  1871.         {

  1872.             pData->engine->setLastError("Failed to register plugin client");

  1873.             return false;

  1874.         }

  1875. 

  1876.         // ---------------------------------------------------------------

  1877.         // initialize plugin

  1878. 

  1879.         fHandle = fDescriptor->instantiate(fDescriptor, (unsigned long)pData->engine->getSampleRate());

  1880. 

  1881.         if (fHandle == nullptr)

  1882.         {

  1883.             pData->engine->setLastError("Plugin failed to initialize");

  1884.             return false;

  1885.         }

  1886. 

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

  1888.         // check for custom data extension

  1889. 

  1890.         if (fDssiDescriptor->configure != nullptr)

  1891.         {

  1892.             if (char* const error = fDssiDescriptor->configure(fHandle, DSSI_CUSTOMDATA_EXTENSION_KEY, ""))

  1893.             {

  1894.                 if (std::strcmp(error, "true") == 0 && fDssiDescriptor->get_custom_data != nullptr && fDssiDescriptor->set_custom_data != nullptr)

  1895.                     fUsesCustomData = true;

  1896. 

  1897.                 std::free(error);

  1898.             }

  1899.         }

  1900. 

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

  1902.         // gui stuff

  1903. 

  1904.         if (const char* const guiFilename = find_dssi_ui(filename, fDescriptor->Label))

  1905.         {

  1906.             pData->osc.thread.setOscData(guiFilename, fDescriptor->Label);

  1907.             fGuiFilename = guiFilename;

  1908.         }

  1909. 

  1910.         // ---------------------------------------------------------------

  1911.         // load plugin settings

  1912. 

  1913.         {

  1914. #ifdef __USE_GNU

  1915.             const bool isAmSynth(strcasestr(pData->filename, "amsynth"));

  1916.             const bool isDssiVst(strcasestr(pData->filename, "dssi-vst"));

  1917. #else

  1918.             const bool isAmSynth(std::strstr(pData->filename, "amsynth"));

  1919.             const bool isDssiVst(std::strstr(pData->filename, "dssi-vst"));

  1920. #endif

  1921. 

  1922.             // set default options

  1923.             pData->options = 0x0;

  1924. 

  1925.             pData->options |= PLUGIN_OPTION_MAP_PROGRAM_CHANGES;

  1926. 

  1927.             if (isAmSynth || isDssiVst)

  1928.                 pData->options |= PLUGIN_OPTION_FIXED_BUFFERS;

  1929. 

  1930.             if (pData->engine->getOptions().forceStereo)

  1931.                 pData->options |= PLUGIN_OPTION_FORCE_STEREO;

  1932. 

  1933.             if (fUsesCustomData)

  1934.                 pData->options |= PLUGIN_OPTION_USE_CHUNKS;

  1935. 

  1936.             if (fDssiDescriptor->run_synth != nullptr || fDssiDescriptor->run_multiple_synths != nullptr)

  1937.             {

  1938.                 pData->options |= PLUGIN_OPTION_SEND_CHANNEL_PRESSURE;

  1939.                 pData->options |= PLUGIN_OPTION_SEND_NOTE_AFTERTOUCH;

  1940.                 pData->options |= PLUGIN_OPTION_SEND_PITCHBEND;

  1941.                 pData->options |= PLUGIN_OPTION_SEND_ALL_SOUND_OFF;

  1942. 

  1943.                 if (fDssiDescriptor->run_synth == nullptr)

  1944.                     carla_stderr2("WARNING: Plugin can ONLY use run_multiple_synths!");

  1945.             }

  1946. 

  1947.             // set identifier string

  1948.             CarlaString identifier("DSSI/");

  1949. 

  1950.             if (const char* const shortname = std::strrchr(filename, OS_SEP))

  1951.             {

  1952.                 identifier += shortname+1;

  1953.                 identifier += ",";

  1954.             }

  1955. 

  1956.             identifier += label;

  1957.             pData->identifier = identifier.dup();

  1958. 

  1959.             // load settings

  1960.             pData->options = pData->loadSettings(pData->options, getOptionsAvailable());

  1961. 

  1962.             // ignore settings, we need this anyway

  1963.             if (isAmSynth || isDssiVst)

  1964.                 pData->options |= PLUGIN_OPTION_FIXED_BUFFERS;

  1965.         }

  1966. 

  1967.         return true;

  1968.     }

  1969. 

  1970. private:

  1971.     LADSPA_Handle fHandle;

  1972.     LADSPA_Handle fHandle2;

  1973.     const LADSPA_Descriptor* fDescriptor;

  1974.     const DSSI_Descriptor*   fDssiDescriptor;

  1975. 

  1976.     bool fUsesCustomData;

  1977.     const char* fGuiFilename;

  1978. 

  1979.     float** fAudioInBuffers;

  1980.     float** fAudioOutBuffers;

  1981.     float*  fParamBuffers;

  1982.     snd_seq_event_t fMidiEvents[kPluginMaxMidiEvents];

  1983. 

  1984.     static LinkedList<const char*> sMultiSynthList;

  1985. 

  1986.     static bool addUniqueMultiSynth(const char* const label)

  1987.     {

  1988.         CARLA_SAFE_ASSERT_RETURN(label != nullptr, true);

  1989. 

  1990.         for (LinkedList<const char*>::Itenerator it = sMultiSynthList.begin(); it.valid(); it.next())

  1991.         {

  1992.             const char*& itLabel(it.getValue());

  1993. 

  1994.             if (std::strcmp(label, itLabel) == 0)

  1995.                 return false;

  1996.         }

  1997. 

  1998.         sMultiSynthList.append(carla_strdup(label));

  1999.         return true;

  2000.     }

  2001. 

  2002.     static void removeUniqueMultiSynth(const char* const label)

  2003.     {

  2004.         CARLA_SAFE_ASSERT_RETURN(label != nullptr,);

  2005. 

  2006.         for (LinkedList<const char*>::Itenerator it = sMultiSynthList.begin(); it.valid(); it.next())

  2007.         {

  2008.             const char*& itLabel(it.getValue());

  2009. 

  2010.             if (std::strcmp(label, itLabel) == 0)

  2011.             {

  2012.                 sMultiSynthList.remove(it);

  2013.                 delete[] itLabel;

  2014.                 return;

  2015.             }

  2016.         }

  2017.     }

  2018. 

  2019.     CARLA_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR(DssiPlugin)

  2020. };

  2021. 

  2022. LinkedList<const char*> DssiPlugin::sMultiSynthList;

  2023. 

  2024. CARLA_BACKEND_END_NAMESPACE

  2025. 

  2026. #endif // WANT_DSSI

  2027. 

  2028. CARLA_BACKEND_START_NAMESPACE

  2029. 

  2030. CarlaPlugin* CarlaPlugin::newDSSI(const Initializer& init)

  2031. {

  2032.     carla_debug("CarlaPlugin::newDSSI({%p, \"%s\", \"%s\", \"%s\"})", init.engine, init.filename, init.name, init.label);

  2033. 

  2034. #ifdef WANT_DSSI

  2035.     DssiPlugin* const plugin(new DssiPlugin(init.engine, init.id));

  2036. 

  2037.     if (! plugin->init(init.filename, init.name, init.label))

  2038.     {

  2039.         delete plugin;

  2040.         return nullptr;

  2041.     }

  2042. 

  2043.     plugin->reload();

  2044. 

  2045.     if (init.engine->getProccessMode() == ENGINE_PROCESS_MODE_CONTINUOUS_RACK && ! plugin->canRunInRack())

  2046.     {

  2047.         init.engine->setLastError("Carla's rack mode can only work with Mono or Stereo DSSI plugins, sorry!");

  2048.         delete plugin;

  2049.         return nullptr;

  2050.     }

  2051. 

  2052.     return plugin;

  2053. #else

  2054.     init.engine->setLastError("DSSI support not available");

  2055.     return nullptr;

  2056. #endif

  2057. }

  2058. 

  2059. CARLA_BACKEND_END_NAMESPACE