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Audio plugin host https://kx.studio/carla
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Carla/source/backend/engine/CarlaEngineNative.cpp

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  1. /*

  2.  * Carla Plugin Host

  3.  * Copyright (C) 2011-2019 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 "CarlaDefines.h"

  19. 

  20. #ifdef BUILD_BRIDGE_ALTERNATIVE_ARCH

  21. # error This file should not be compiled if building alternative-arch bridges

  22. #endif

  23. 

  24. #include "CarlaEngineInternal.hpp"

  25. #include "CarlaPlugin.hpp"

  26. 

  27. #include "CarlaBackendUtils.hpp"

  28. #include "CarlaBase64Utils.hpp"

  29. #include "CarlaBinaryUtils.hpp"

  30. #include "CarlaMathUtils.hpp"

  31. #include "CarlaStateUtils.hpp"

  32. 

  33. #include "CarlaExternalUI.hpp"

  34. #include "CarlaHost.h"

  35. #include "CarlaNative.hpp"

  36. #include "CarlaNativePlugin.h"

  37. 

  38. #if defined(USING_JUCE) && ! (defined(CARLA_OS_MAC) || defined(CARLA_OS_WIN))

  39. # if defined(__GNUC__) && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 6))

  40. #  pragma GCC diagnostic push

  41. #  pragma GCC diagnostic ignored "-Wconversion"

  42. #  pragma GCC diagnostic ignored "-Weffc++"

  43. #  pragma GCC diagnostic ignored "-Wsign-conversion"

  44. #  pragma GCC diagnostic ignored "-Wundef"

  45. #  pragma GCC diagnostic ignored "-Wzero-as-null-pointer-constant"

  46. # endif

  47. # include "AppConfig.h"

  48. # include "juce_events/juce_events.h"

  49. # define USE_JUCE_MESSAGE_THREAD

  50. # if defined(__GNUC__) && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 6))

  51. #  pragma GCC diagnostic pop

  52. # endif

  53. #endif

  54. 

  55. #include "water/files/File.h"

  56. #include "water/streams/MemoryOutputStream.h"

  57. #include "water/xml/XmlDocument.h"

  58. #include "water/xml/XmlElement.h"

  59. 

  60. using water::File;

  61. using water::MemoryOutputStream;

  62. using water::String;

  63. using water::XmlDocument;

  64. using water::XmlElement;

  65. 

  66. CARLA_BACKEND_START_NAMESPACE

  67. 

  68. static const uint32_t kNumInParams = 100;

  69. static const uint32_t kNumOutParams = 10;

  70. 

  71. // -----------------------------------------------------------------------

  72. 

  73. #ifdef USE_JUCE_MESSAGE_THREAD

  74. static int numScopedInitInstances = 0;

  75. 

  76. class SharedJuceMessageThread : public juce::Thread

  77. {

  78. public:

  79.     SharedJuceMessageThread()

  80.       : juce::Thread ("SharedJuceMessageThread"),

  81.         initialised (false) {}

  82. 

  83.     ~SharedJuceMessageThread()

  84.     {

  85.         CARLA_SAFE_ASSERT(numScopedInitInstances == 0);

  86. 

  87.         // in case something fails

  88.         juce::MessageManager::getInstance()->stopDispatchLoop();

  89.         waitForThreadToExit (5000);

  90.     }

  91. 

  92.     void incRef()

  93.     {

  94.         if (numScopedInitInstances++ == 0)

  95.         {

  96.             startThread (7);

  97. 

  98.             while (! initialised)

  99.                 juce::Thread::sleep (1);

  100.         }

  101.     }

  102. 

  103.     void decRef()

  104.     {

  105.         if (--numScopedInitInstances == 0)

  106.         {

  107.             juce::MessageManager::getInstance()->stopDispatchLoop();

  108.             waitForThreadToExit (5000);

  109.         }

  110.     }

  111. 

  112. protected:

  113.     void run() override

  114.     {

  115.         const juce::ScopedJuceInitialiser_GUI juceInitialiser;

  116. 

  117.         juce::MessageManager::getInstance()->setCurrentThreadAsMessageThread();

  118.         initialised = true;

  119. 

  120.         juce::MessageManager::getInstance()->runDispatchLoop();

  121.     }

  122. 

  123. private:

  124.     volatile bool initialised;

  125. 

  126.     CARLA_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR(SharedJuceMessageThread);

  127. };

  128. #endif

  129. 

  130. // -----------------------------------------------------------------------

  131. 

  132. class CarlaEngineNative;

  133. 

  134. class CarlaEngineNativeUI : public CarlaExternalUI

  135. {

  136. public:

  137.     CarlaEngineNativeUI(CarlaEngineNative* const engine)

  138.         : fEngine(engine)

  139.     {

  140.         carla_debug("CarlaEngineNativeUI::CarlaEngineNativeUI(%p)", engine);

  141.     }

  142. 

  143.     ~CarlaEngineNativeUI() noexcept override

  144.     {

  145.         carla_debug("CarlaEngineNativeUI::~CarlaEngineNativeUI()");

  146.     }

  147. 

  148. protected:

  149.     bool msgReceived(const char* const msg) noexcept override;

  150. 

  151. private:

  152.     CarlaEngineNative* const fEngine;

  153. 

  154.     void _updateParamValues(CarlaPlugin* const plugin, const uint32_t pluginId,

  155.                             const bool sendCallback, const bool sendPluginHost) const noexcept;

  156. 

  157.     CARLA_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR(CarlaEngineNativeUI)

  158. };

  159. 

  160. // -----------------------------------------------------------------------

  161. 

  162. class CarlaEngineNative : public CarlaEngine

  163. {

  164. public:

  165.     CarlaEngineNative(const NativeHostDescriptor* const host, const bool isPatchbay, const bool withMidiOut,

  166.                       const uint32_t inChan = 2, uint32_t outChan = 2)

  167.         : CarlaEngine(),

  168.           pHost(host),

  169. #ifdef USE_JUCE_MESSAGE_THREAD

  170.           // if not running inside Carla, we will have to run event loop ourselves

  171.           kNeedsJuceMsgThread(host->dispatcher(pHost->handle,

  172.                                                NATIVE_HOST_OPCODE_INTERNAL_PLUGIN, 0, 0, nullptr, 0.0f) == 0),

  173.           fJuceMsgThread(),

  174. #endif

  175.           kIsPatchbay(isPatchbay),

  176.           kHasMidiOut(withMidiOut),

  177.           fIsActive(false),

  178.           fIsRunning(false),

  179.           fUiServer(this),

  180.           fOptionsForced(false)

  181.     {

  182.         carla_debug("CarlaEngineNative::CarlaEngineNative()");

  183. 

  184.         carla_zeroFloats(fParameters, kNumInParams+kNumOutParams);

  185. 

  186. #ifdef USE_JUCE_MESSAGE_THREAD

  187.         if (kNeedsJuceMsgThread)

  188.             fJuceMsgThread->incRef();

  189. #endif

  190. 

  191.         pData->bufferSize = pHost->get_buffer_size(pHost->handle);

  192.         pData->sampleRate = pHost->get_sample_rate(pHost->handle);

  193.         pData->initTime(nullptr);

  194. 

  195. #ifndef BUILD_BRIDGE

  196.         // Forced OSC setup when running as plugin

  197.         pData->options.oscEnabled = true;

  198.         pData->options.oscPortTCP = -1;

  199.         pData->options.oscPortUDP = 0;

  200. #endif

  201. 

  202.         if (outChan == 0)

  203.             outChan = inChan;

  204. 

  205.         // set-up engine

  206.         if (kIsPatchbay)

  207.         {

  208.             pData->options.processMode         = ENGINE_PROCESS_MODE_PATCHBAY;

  209.             pData->options.transportMode       = ENGINE_TRANSPORT_MODE_PLUGIN;

  210.             pData->options.forceStereo         = false;

  211.             pData->options.preferPluginBridges = false;

  212.             pData->options.preferUiBridges     = false;

  213.             init("Carla-Patchbay");

  214.             pData->graph.create(inChan, outChan);

  215.         }

  216.         else

  217.         {

  218.             CARLA_SAFE_ASSERT(inChan == 2);

  219.             CARLA_SAFE_ASSERT(outChan == 2);

  220.             pData->options.processMode         = ENGINE_PROCESS_MODE_CONTINUOUS_RACK;

  221.             pData->options.transportMode       = ENGINE_TRANSPORT_MODE_PLUGIN;

  222.             pData->options.forceStereo         = true;

  223.             pData->options.preferPluginBridges = false;

  224.             pData->options.preferUiBridges     = false;

  225.             init("Carla-Rack");

  226.             pData->graph.create(0, 0); // FIXME?

  227.         }

  228. 

  229.         if (pData->options.resourceDir != nullptr)

  230.             delete[] pData->options.resourceDir;

  231.         if (pData->options.binaryDir != nullptr)

  232.             delete[] pData->options.binaryDir;

  233. 

  234.         pData->options.resourceDir = carla_strdup(pHost->resourceDir);

  235.         pData->options.binaryDir   = carla_strdup(carla_get_library_folder());

  236. 

  237.         setCallback(_ui_server_callback, this);

  238.         setFileCallback(_ui_file_callback, this);

  239.     }

  240. 

  241.     ~CarlaEngineNative() override

  242.     {

  243.         CARLA_SAFE_ASSERT(! fIsActive);

  244.         carla_debug("CarlaEngineNative::~CarlaEngineNative() - START");

  245. 

  246.         pData->aboutToClose = true;

  247.         fIsRunning = false;

  248. 

  249.         removeAllPlugins();

  250.         //runPendingRtEvents();

  251.         close();

  252. 

  253.         pData->graph.destroy();

  254. 

  255. #ifdef USE_JUCE_MESSAGE_THREAD

  256.         if (kNeedsJuceMsgThread)

  257.             fJuceMsgThread->decRef();

  258. #endif

  259. 

  260.         carla_debug("CarlaEngineNative::~CarlaEngineNative() - END");

  261.     }

  262. 

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

  264.     // CarlaEngine virtual calls

  265. 

  266.     bool init(const char* const clientName) override

  267.     {

  268.         carla_debug("CarlaEngineNative::init(\"%s\")", clientName);

  269. 

  270.         fIsRunning = true;

  271. 

  272.         if (! pData->init(clientName))

  273.         {

  274.             close();

  275.             setLastError("Failed to init internal data");

  276.             return false;

  277.         }

  278. 

  279.         pData->bufferSize = pHost->get_buffer_size(pHost->handle);

  280.         pData->sampleRate = pHost->get_sample_rate(pHost->handle);

  281. 

  282.         return true;

  283.     }

  284. 

  285.     bool close() override

  286.     {

  287.         fIsRunning = false;

  288.         CarlaEngine::close();

  289.         return true;

  290.     }

  291. 

  292.     bool isRunning() const noexcept override

  293.     {

  294.         return fIsRunning;

  295.     }

  296. 

  297.     bool isOffline() const noexcept override

  298.     {

  299.         return pHost->is_offline(pHost->handle);

  300.     }

  301. 

  302.     bool usesConstantBufferSize() const noexcept override

  303.     {

  304.         // TODO LV2 hosts can report this, till then we allow this

  305.         return true;

  306.     }

  307. 

  308.     EngineType getType() const noexcept override

  309.     {

  310.         return kEngineTypePlugin;

  311.     }

  312. 

  313.     const char* getCurrentDriverName() const noexcept override

  314.     {

  315.         return "Plugin";

  316.     }

  317. 

  318.     void callback(const bool sendHost, const bool sendOsc,

  319.                   const EngineCallbackOpcode action, const uint pluginId,

  320.                   const int value1, const int value2, const int value3,

  321.                   const float valuef, const char* const valueStr) noexcept override

  322.     {

  323.         CarlaEngine::callback(sendHost, sendOsc, action, pluginId, value1, value2, value3, valuef, valueStr);

  324. 

  325.         if (action == ENGINE_CALLBACK_IDLE && ! pData->aboutToClose) {

  326.             pHost->dispatcher(pHost->handle,

  327.                               NATIVE_HOST_OPCODE_HOST_IDLE,

  328.                               0, 0, nullptr, 0.0f);

  329.         }

  330.     }

  331. 

  332.     // -------------------------------------------------------------------

  333. 

  334.     void touchPluginParameter(const uint id, const uint32_t parameterId, const bool touch) noexcept override

  335.     {

  336.         setParameterTouchFromUI(id, parameterId, touch);

  337.     }

  338. 

  339.     // -------------------------------------------------------------------

  340. 

  341.     void setParameterValueFromUI(const uint32_t pluginId, const uint32_t index, const float value)

  342.     {

  343.         if (pluginId != 0)

  344.             return;

  345. 

  346.         fParameters[index] = value;

  347.         pHost->ui_parameter_changed(pHost->handle, index, value);

  348.     }

  349. 

  350.     void setParameterTouchFromUI(const uint32_t pluginId, const uint32_t index, const bool touch)

  351.     {

  352.         if (pluginId != 0)

  353.             return;

  354. 

  355.         pHost->dispatcher(pHost->handle,

  356.                           NATIVE_HOST_OPCODE_UI_TOUCH_PARAMETER,

  357.                           static_cast<int32_t>(index),

  358.                           touch ? 1 : 0,

  359.                           nullptr, 0.0f);

  360.     }

  361. 

  362.     void reloadFromUI()

  363.     {

  364.         carla_zeroFloats(fParameters, kNumInParams+kNumOutParams);

  365.         pHost->dispatcher(pHost->handle, NATIVE_HOST_OPCODE_RELOAD_ALL, 0, 0, nullptr, 0.0f);

  366.     }

  367. 

  368. protected:

  369.     // -------------------------------------------------------------------

  370. 

  371.     void bufferSizeChanged(const uint32_t newBufferSize)

  372.     {

  373.         if (pData->bufferSize == newBufferSize)

  374.             return;

  375. 

  376.         {

  377.             const CarlaMutexLocker cml(fUiServer.getPipeLock());

  378. 

  379.             if (fUiServer.writeAndFixMessage("buffer-size"))

  380.             {

  381.                 char tmpBuf[STR_MAX];

  382.                 carla_zeroChars(tmpBuf, STR_MAX);

  383. 

  384.                 std::sprintf(tmpBuf, "%i\n", newBufferSize);

  385. 

  386.                 if (fUiServer.writeMessage(tmpBuf))

  387.                     fUiServer.flushMessages();

  388.             }

  389.         }

  390. 

  391.         pData->bufferSize = newBufferSize;

  392.         CarlaEngine::bufferSizeChanged(newBufferSize);

  393.     }

  394. 

  395.     void sampleRateChanged(const double newSampleRate)

  396.     {

  397.         if (carla_isEqual(pData->sampleRate, newSampleRate))

  398.             return;

  399. 

  400.         {

  401.             const CarlaMutexLocker cml(fUiServer.getPipeLock());

  402. 

  403.             if (fUiServer.writeAndFixMessage("sample-rate"))

  404.             {

  405.                 char tmpBuf[STR_MAX];

  406.                 carla_zeroChars(tmpBuf, STR_MAX);

  407. 

  408.                 {

  409.                     const CarlaScopedLocale csl;

  410.                     std::sprintf(tmpBuf, "%f\n", newSampleRate);

  411.                 }

  412. 

  413.                 if (fUiServer.writeMessage(tmpBuf))

  414.                     fUiServer.flushMessages();

  415.             }

  416.         }

  417. 

  418.         pData->sampleRate = newSampleRate;

  419.         CarlaEngine::sampleRateChanged(newSampleRate);

  420.     }

  421. 

  422.     // -------------------------------------------------------------------

  423. 

  424.     void uiServerSendPluginInfo(CarlaPlugin* const plugin)

  425.     {

  426.         char tmpBuf[STR_MAX];

  427.         carla_zeroChars(tmpBuf, STR_MAX);

  428. 

  429.         const CarlaMutexLocker cml(fUiServer.getPipeLock());

  430. 

  431.         const uint pluginId(plugin->getId());

  432. 

  433.         std::sprintf(tmpBuf, "PLUGIN_INFO_%i\n", pluginId);

  434.         if (! fUiServer.writeMessage(tmpBuf))

  435.             return;

  436. 

  437.         std::sprintf(tmpBuf, "%i:%i:%i:" P_INT64 ":%i:%i\n", plugin->getType(), plugin->getCategory(), plugin->getHints(), plugin->getUniqueId(), plugin->getOptionsAvailable(), plugin->getOptionsEnabled());

  438.         if (! fUiServer.writeMessage(tmpBuf))

  439.             return;

  440. 

  441.         if (const char* const filename = plugin->getFilename())

  442.         {

  443.             std::sprintf(tmpBuf, "%s", filename);

  444.             if (! fUiServer.writeAndFixMessage(tmpBuf))

  445.                 return;

  446.         }

  447.         else

  448.         {

  449.             if (! fUiServer.writeMessage("\n"))

  450.                 return;

  451.         }

  452. 

  453.         if (const char* const name = plugin->getName())

  454.         {

  455.             std::sprintf(tmpBuf, "%s", name);

  456.             if (! fUiServer.writeAndFixMessage(tmpBuf))

  457.                 return;

  458.         }

  459.         else

  460.         {

  461.             if (! fUiServer.writeMessage("\n"))

  462.                 return;

  463.         }

  464. 

  465.         if (const char* const iconName = plugin->getIconName())

  466.         {

  467.             std::sprintf(tmpBuf, "%s", iconName);

  468.             if (! fUiServer.writeAndFixMessage(tmpBuf))

  469.                 return;

  470.         }

  471.         else

  472.         {

  473.             if (! fUiServer.writeMessage("\n"))

  474.                 return;

  475.         }

  476. 

  477.         plugin->getRealName(tmpBuf);

  478.         if (! fUiServer.writeAndFixMessage(tmpBuf))

  479.             return;

  480. 

  481.         plugin->getLabel(tmpBuf);

  482.         if (! fUiServer.writeAndFixMessage(tmpBuf))

  483.             return;

  484. 

  485.         plugin->getMaker(tmpBuf);

  486.         if (! fUiServer.writeAndFixMessage(tmpBuf))

  487.             return;

  488. 

  489.         plugin->getCopyright(tmpBuf);

  490.         if (! fUiServer.writeAndFixMessage(tmpBuf))

  491.             return;

  492. 

  493.         std::sprintf(tmpBuf, "AUDIO_COUNT_%i:%i:%i\n", pluginId, plugin->getAudioInCount(), plugin->getAudioOutCount());

  494.         if (! fUiServer.writeMessage(tmpBuf))

  495.             return;

  496. 

  497.         std::sprintf(tmpBuf, "MIDI_COUNT_%i:%i:%i\n", pluginId, plugin->getMidiInCount(), plugin->getMidiOutCount());

  498.         if (! fUiServer.writeMessage(tmpBuf))

  499.             return;

  500. 

  501.         fUiServer.flushMessages();

  502.     }

  503. 

  504.     void uiServerSendPluginParameters(CarlaPlugin* const plugin)

  505.     {

  506.         char tmpBuf[STR_MAX];

  507.         carla_zeroChars(tmpBuf, STR_MAX);

  508. 

  509.         const CarlaMutexLocker cml(fUiServer.getPipeLock());

  510.         const CarlaScopedLocale csl;

  511. 

  512.         const uint pluginId(plugin->getId());

  513. 

  514.         for (int32_t i=PARAMETER_ACTIVE; i>PARAMETER_MAX; --i)

  515.         {

  516.             std::sprintf(tmpBuf, "PARAMVAL_%i:%i\n", pluginId, i);

  517.             if (! fUiServer.writeMessage(tmpBuf))

  518.                 return;

  519. 

  520.             std::sprintf(tmpBuf, "%f\n", static_cast<double>(plugin->getInternalParameterValue(i)));

  521.             if (! fUiServer.writeMessage(tmpBuf))

  522.                 return;

  523. 

  524.             fUiServer.flushMessages();

  525.         }

  526. 

  527.         uint32_t ins, outs, count;

  528.         plugin->getParameterCountInfo(ins, outs);

  529.         count = plugin->getParameterCount();

  530. 

  531.         std::sprintf(tmpBuf, "PARAMETER_COUNT_%i:%i:%i:%i\n", pluginId, ins, outs, count);

  532.         if (! fUiServer.writeMessage(tmpBuf))

  533.             return;

  534. 

  535.         for (uint32_t i=0; i<count; ++i)

  536.         {

  537.             const ParameterData& paramData(plugin->getParameterData(i));

  538.             const ParameterRanges& paramRanges(plugin->getParameterRanges(i));

  539. 

  540.             std::sprintf(tmpBuf, "PARAMETER_DATA_%i:%i\n", pluginId, i);

  541.             if (! fUiServer.writeMessage(tmpBuf))

  542.                 return;

  543. 

  544.             std::sprintf(tmpBuf, "%i:%i:%i:%i\n", paramData.type, paramData.hints, paramData.midiChannel, paramData.midiCC);

  545.             if (! fUiServer.writeMessage(tmpBuf))

  546.                 return;

  547. 

  548.             plugin->getParameterName(i, tmpBuf);

  549.             if (! fUiServer.writeAndFixMessage(tmpBuf))

  550.                 return;

  551. 

  552.             plugin->getParameterUnit(i, tmpBuf);

  553.             if (! fUiServer.writeAndFixMessage(tmpBuf))

  554.                 return;

  555. 

  556.             std::sprintf(tmpBuf, "PARAMETER_RANGES_%i:%i\n", pluginId, i);

  557.             if (! fUiServer.writeMessage(tmpBuf))

  558.                 return;

  559. 

  560.             std::sprintf(tmpBuf, "%f:%f:%f:%f:%f:%f\n",

  561.                          static_cast<double>(paramRanges.def),

  562.                          static_cast<double>(paramRanges.min),

  563.                          static_cast<double>(paramRanges.max),

  564.                          static_cast<double>(paramRanges.step),

  565.                          static_cast<double>(paramRanges.stepSmall),

  566.                          static_cast<double>(paramRanges.stepLarge));

  567.             if (! fUiServer.writeMessage(tmpBuf))

  568.                 return;

  569. 

  570.             std::sprintf(tmpBuf, "PARAMVAL_%i:%i\n", pluginId, i);

  571.             if (! fUiServer.writeMessage(tmpBuf))

  572.                 return;

  573. 

  574.             std::sprintf(tmpBuf, "%f\n", static_cast<double>(plugin->getParameterValue(i)));

  575.             if (! fUiServer.writeMessage(tmpBuf))

  576.                 return;

  577.         }

  578. 

  579.         fUiServer.flushMessages();

  580.     }

  581. 

  582.     void uiServerSendPluginPrograms(CarlaPlugin* const plugin)

  583.     {

  584.         char tmpBuf[STR_MAX];

  585.         carla_zeroChars(tmpBuf, STR_MAX);

  586. 

  587.         const CarlaMutexLocker cml(fUiServer.getPipeLock());

  588. 

  589.         const uint pluginId(plugin->getId());

  590. 

  591.         uint32_t count = plugin->getProgramCount();

  592.         std::sprintf(tmpBuf, "PROGRAM_COUNT_%i:%i:%i\n", pluginId, count, plugin->getCurrentProgram());

  593.         if (! fUiServer.writeMessage(tmpBuf))

  594.             return;

  595. 

  596.         for (uint32_t i=0; i<count; ++i)

  597.         {

  598.             std::sprintf(tmpBuf, "PROGRAM_NAME_%i:%i\n", pluginId, i);

  599.             if (! fUiServer.writeMessage(tmpBuf))

  600.                 return;

  601. 

  602.             plugin->getProgramName(i, tmpBuf);

  603.             if (! fUiServer.writeAndFixMessage(tmpBuf))

  604.                 return;

  605.         }

  606. 

  607.         fUiServer.flushMessages();

  608. 

  609.         count = plugin->getMidiProgramCount();

  610.         std::sprintf(tmpBuf, "MIDI_PROGRAM_COUNT_%i:%i:%i\n", pluginId, count, plugin->getCurrentMidiProgram());

  611.         if (! fUiServer.writeMessage(tmpBuf))

  612.             return;

  613. 

  614.         for (uint32_t i=0; i<count; ++i)

  615.         {

  616.             std::sprintf(tmpBuf, "MIDI_PROGRAM_DATA_%i:%i\n", pluginId, i);

  617.             if (! fUiServer.writeMessage(tmpBuf))

  618.                 return;

  619. 

  620.             const MidiProgramData& mpData(plugin->getMidiProgramData(i));

  621. 

  622.             std::sprintf(tmpBuf, "%i:%i\n", mpData.bank, mpData.program);

  623.             if (! fUiServer.writeMessage(tmpBuf))

  624.                 return;

  625. 

  626.             std::sprintf(tmpBuf, "%s", mpData.name);

  627.             if (! fUiServer.writeAndFixMessage(tmpBuf))

  628.                 return;

  629.         }

  630. 

  631.         fUiServer.flushMessages();

  632.     }

  633. 

  634.     void uiServerSendPluginProperties(CarlaPlugin* const plugin)

  635.     {

  636.         char tmpBuf[STR_MAX];

  637.         carla_zeroChars(tmpBuf, STR_MAX);

  638. 

  639.         const CarlaMutexLocker cml(fUiServer.getPipeLock());

  640. 

  641.         const uint pluginId(plugin->getId());

  642. 

  643.         uint32_t count = plugin->getCustomDataCount();

  644.         std::sprintf(tmpBuf, "CUSTOM_DATA_COUNT_%i:%i\n", pluginId, count);

  645.         if (! fUiServer.writeMessage(tmpBuf))

  646.             return;

  647. 

  648.         for (uint32_t i=0; i<count; ++i)

  649.         {

  650.             const CustomData& customData(plugin->getCustomData(i));

  651.             CARLA_SAFE_ASSERT_CONTINUE(customData.isValid());

  652. 

  653.             if (std::strcmp(customData.type, CUSTOM_DATA_TYPE_PROPERTY) != 0)

  654.                 continue;

  655. 

  656.             std::sprintf(tmpBuf, "CUSTOM_DATA_%i:%i\n", pluginId, i);

  657.             if (! fUiServer.writeMessage(tmpBuf))

  658.                 return;

  659. 

  660.             if (! fUiServer.writeAndFixMessage(customData.type))

  661.                 return;

  662.             if (! fUiServer.writeAndFixMessage(customData.key))

  663.                 return;

  664.             if (! fUiServer.writeAndFixMessage(customData.value))

  665.                 return;

  666.         }

  667. 

  668.         fUiServer.flushMessages();

  669.     }

  670. 

  671.     void uiServerCallback(const EngineCallbackOpcode action, const uint pluginId,

  672.                           const int value1, const int value2, const int value3,

  673.                           const float valuef, const char* const valueStr)

  674.     {

  675.         if (! fIsRunning)

  676.             return;

  677.         if (! fUiServer.isPipeRunning())

  678.             return;

  679. 

  680.         CarlaPlugin* plugin;

  681. 

  682.         switch (action)

  683.         {

  684.         case ENGINE_CALLBACK_UPDATE:

  685.             plugin = getPlugin(pluginId);

  686. 

  687.             if (plugin != nullptr && plugin->isEnabled())

  688.             {

  689.                 CARLA_SAFE_ASSERT_BREAK(plugin->getId() == pluginId);

  690.                 uiServerSendPluginProperties(plugin);

  691.             }

  692.             break;

  693. 

  694.         case ENGINE_CALLBACK_RELOAD_INFO:

  695.             plugin = getPlugin(pluginId);

  696. 

  697.             if (plugin != nullptr && plugin->isEnabled())

  698.             {

  699.                 CARLA_SAFE_ASSERT_BREAK(plugin->getId() == pluginId);

  700.                 uiServerSendPluginInfo(plugin);

  701.             }

  702.             break;

  703. 

  704.         case ENGINE_CALLBACK_RELOAD_PARAMETERS:

  705.             plugin = getPlugin(pluginId);

  706. 

  707.             if (plugin != nullptr && plugin->isEnabled())

  708.             {

  709.                 CARLA_SAFE_ASSERT_BREAK(plugin->getId() == pluginId);

  710.                 uiServerSendPluginParameters(plugin);

  711.             }

  712.             break;

  713. 

  714.         case ENGINE_CALLBACK_RELOAD_PROGRAMS:

  715.             plugin = getPlugin(pluginId);

  716. 

  717.             if (plugin != nullptr && plugin->isEnabled())

  718.             {

  719.                 CARLA_SAFE_ASSERT_BREAK(plugin->getId() == pluginId);

  720.                 uiServerSendPluginPrograms(plugin);

  721.             }

  722.             break;

  723. 

  724.         case ENGINE_CALLBACK_RELOAD_ALL:

  725.         case ENGINE_CALLBACK_PLUGIN_ADDED:

  726.             plugin = getPlugin(pluginId);

  727. 

  728.             if (plugin != nullptr && plugin->isEnabled())

  729.             {

  730.                 CARLA_SAFE_ASSERT_BREAK(plugin->getId() == pluginId);

  731.                 uiServerSendPluginInfo(plugin);

  732.                 uiServerSendPluginParameters(plugin);

  733.                 uiServerSendPluginPrograms(plugin);

  734.                 uiServerSendPluginProperties(plugin);

  735.             }

  736.             break;

  737. 

  738.         default:

  739.             break;

  740.         }

  741. 

  742.         char tmpBuf[STR_MAX];

  743.         carla_zeroChars(tmpBuf, STR_MAX);

  744. 

  745.         const CarlaMutexLocker cml(fUiServer.getPipeLock());

  746. 

  747.         std::sprintf(tmpBuf, "ENGINE_CALLBACK_%i\n", int(action));

  748.         if (! fUiServer.writeMessage(tmpBuf))

  749.             return;

  750.         std::sprintf(tmpBuf, "%u\n", pluginId);

  751.         if (! fUiServer.writeMessage(tmpBuf))

  752.             return;

  753.         std::sprintf(tmpBuf, "%i\n", value1);

  754.         if (! fUiServer.writeMessage(tmpBuf))

  755.             return;

  756.         std::sprintf(tmpBuf, "%i\n", value2);

  757.         if (! fUiServer.writeMessage(tmpBuf))

  758.             return;

  759.         std::sprintf(tmpBuf, "%i\n", value3);

  760.         if (! fUiServer.writeMessage(tmpBuf))

  761.             return;

  762.         {

  763.             const CarlaScopedLocale csl;

  764.             std::sprintf(tmpBuf, "%f\n", static_cast<double>(valuef));

  765.         }

  766.         if (! fUiServer.writeMessage(tmpBuf))

  767.             return;

  768.         if (! fUiServer.writeAndFixMessage(valueStr != nullptr ? valueStr : ""))

  769.             return;

  770. 

  771.         fUiServer.flushMessages();

  772.     }

  773. 

  774.     const char* uiFileCallback(FileCallbackOpcode action, bool isDir, const char* title, const char* filter)

  775.     {

  776.         switch (action)

  777.         {

  778.         case FILE_CALLBACK_DEBUG:

  779.             return nullptr;

  780. 

  781.         case FILE_CALLBACK_OPEN:

  782.             return pHost->ui_open_file(pHost->handle, isDir, title, filter);

  783. 

  784.         case FILE_CALLBACK_SAVE:

  785.             return pHost->ui_save_file(pHost->handle, isDir, title, filter);

  786.         }

  787. 

  788.         return nullptr;

  789.     }

  790. 

  791.     void uiServerInfo()

  792.     {

  793.         CARLA_SAFE_ASSERT_RETURN(fIsRunning,);

  794.         CARLA_SAFE_ASSERT_RETURN(fUiServer.isPipeRunning(),);

  795. 

  796.         char tmpBuf[STR_MAX];

  797.         carla_zeroChars(tmpBuf, STR_MAX);

  798. 

  799.         const CarlaMutexLocker cml(fUiServer.getPipeLock());

  800. 

  801. #if defined(HAVE_LIBLO) && !defined(BUILD_BRIDGE)

  802.         if (! fUiServer.writeAndFixMessage("osc-urls"))

  803.             return;

  804.         if (! fUiServer.writeAndFixMessage(pData->osc.getServerPathTCP()))

  805.             return;

  806.         if (! fUiServer.writeAndFixMessage(pData->osc.getServerPathUDP()))

  807.             return;

  808. #endif

  809. 

  810.         if (! fUiServer.writeAndFixMessage("max-plugin-number"))

  811.             return;

  812.         std::sprintf(tmpBuf, "%i\n", pData->maxPluginNumber);

  813.         if (! fUiServer.writeMessage(tmpBuf))

  814.             return;

  815. 

  816.         if (! fUiServer.writeAndFixMessage("buffer-size"))

  817.             return;

  818.         std::sprintf(tmpBuf, "%i\n", pData->bufferSize);

  819.         if (! fUiServer.writeMessage(tmpBuf))

  820.             return;

  821. 

  822.         if (! fUiServer.writeAndFixMessage("sample-rate"))

  823.             return;

  824.         {

  825.             const CarlaScopedLocale csl;

  826.             std::sprintf(tmpBuf, "%f\n", pData->sampleRate);

  827.         }

  828.         if (! fUiServer.writeMessage(tmpBuf))

  829.             return;

  830. 

  831.         fUiServer.flushMessages();

  832.     }

  833. 

  834.     void uiServerOptions()

  835.     {

  836.         CARLA_SAFE_ASSERT_RETURN(fIsRunning,);

  837.         CARLA_SAFE_ASSERT_RETURN(fUiServer.isPipeRunning(),);

  838. 

  839.         char tmpBuf[STR_MAX];

  840.         carla_zeroChars(tmpBuf, STR_MAX);

  841. 

  842.         const EngineOptions& options(pData->options);

  843.         const CarlaMutexLocker cml(fUiServer.getPipeLock());

  844. 

  845.         const char* const optionsForcedStr(fOptionsForced ? "true\n" : "false\n");

  846.         const std::size_t optionsForcedStrSize(fOptionsForced ? 5 : 6);

  847. 

  848.         std::sprintf(tmpBuf, "ENGINE_OPTION_%i\n", ENGINE_OPTION_PROCESS_MODE);

  849.         if (! fUiServer.writeMessage(tmpBuf))

  850.             return;

  851.         if (! fUiServer.writeMessage(optionsForcedStr, optionsForcedStrSize))

  852.             return;

  853.         std::sprintf(tmpBuf, "%i\n", options.processMode);

  854.         if (! fUiServer.writeMessage(tmpBuf))

  855.             return;

  856.         fUiServer.flushMessages();

  857. 

  858.         std::sprintf(tmpBuf, "ENGINE_OPTION_%i\n", ENGINE_OPTION_TRANSPORT_MODE);

  859.         if (! fUiServer.writeMessage(tmpBuf))

  860.             return;

  861.         if (! fUiServer.writeMessage(optionsForcedStr, optionsForcedStrSize))

  862.             return;

  863.         std::sprintf(tmpBuf, "%i\n", options.transportMode);

  864.         if (! fUiServer.writeMessage(tmpBuf))

  865.             return;

  866.         fUiServer.flushMessages();

  867. 

  868.         std::sprintf(tmpBuf, "ENGINE_OPTION_%i\n", ENGINE_OPTION_FORCE_STEREO);

  869.         if (! fUiServer.writeMessage(tmpBuf))

  870.             return;

  871.         if (! fUiServer.writeMessage(optionsForcedStr, optionsForcedStrSize))

  872.             return;

  873.         if (! fUiServer.writeMessage(options.forceStereo ? "true\n" : "false\n"))

  874.             return;

  875.         fUiServer.flushMessages();

  876. 

  877.         std::sprintf(tmpBuf, "ENGINE_OPTION_%i\n", ENGINE_OPTION_PREFER_PLUGIN_BRIDGES);

  878.         if (! fUiServer.writeMessage(tmpBuf))

  879.             return;

  880.         if (! fUiServer.writeMessage(optionsForcedStr, optionsForcedStrSize))

  881.             return;

  882.         if (! fUiServer.writeMessage(options.preferPluginBridges ? "true\n" : "false\n"))

  883.             return;

  884.         fUiServer.flushMessages();

  885. 

  886.         std::sprintf(tmpBuf, "ENGINE_OPTION_%i\n", ENGINE_OPTION_PREFER_UI_BRIDGES);

  887.         if (! fUiServer.writeMessage(tmpBuf))

  888.             return;

  889.         if (! fUiServer.writeMessage(optionsForcedStr, optionsForcedStrSize))

  890.             return;

  891.         if (! fUiServer.writeMessage(options.preferUiBridges ? "true\n" : "false\n"))

  892.             return;

  893.         fUiServer.flushMessages();

  894. 

  895.         std::sprintf(tmpBuf, "ENGINE_OPTION_%i\n", ENGINE_OPTION_UIS_ALWAYS_ON_TOP);

  896.         if (! fUiServer.writeMessage(tmpBuf))

  897.             return;

  898.         if (! fUiServer.writeMessage(optionsForcedStr, optionsForcedStrSize))

  899.             return;

  900.         if (! fUiServer.writeMessage(options.uisAlwaysOnTop ? "true\n" : "false\n"))

  901.             return;

  902.         fUiServer.flushMessages();

  903. 

  904.         std::sprintf(tmpBuf, "ENGINE_OPTION_%i\n", ENGINE_OPTION_MAX_PARAMETERS);

  905.         if (! fUiServer.writeMessage(tmpBuf))

  906.             return;

  907.         if (! fUiServer.writeMessage(optionsForcedStr, optionsForcedStrSize))

  908.             return;

  909.         std::sprintf(tmpBuf, "%i\n", options.maxParameters);

  910.         if (! fUiServer.writeMessage(tmpBuf))

  911.             return;

  912.         fUiServer.flushMessages();

  913. 

  914.         std::sprintf(tmpBuf, "ENGINE_OPTION_%i\n", ENGINE_OPTION_UI_BRIDGES_TIMEOUT);

  915.         if (! fUiServer.writeMessage(tmpBuf))

  916.             return;

  917.         if (! fUiServer.writeMessage(optionsForcedStr, optionsForcedStrSize))

  918.             return;

  919.         std::sprintf(tmpBuf, "%i\n", options.uiBridgesTimeout);

  920.         if (! fUiServer.writeMessage(tmpBuf))

  921.             return;

  922.         fUiServer.flushMessages();

  923. 

  924.         std::sprintf(tmpBuf, "ENGINE_OPTION_%i\n", ENGINE_OPTION_PATH_BINARIES);

  925.         if (! fUiServer.writeMessage(tmpBuf))

  926.             return;

  927.         if (! fUiServer.writeMessage("true\n", 5))

  928.             return;

  929.         std::sprintf(tmpBuf, "%s\n", options.binaryDir);

  930.         if (! fUiServer.writeMessage(tmpBuf))

  931.             return;

  932.         fUiServer.flushMessages();

  933. 

  934.         std::sprintf(tmpBuf, "ENGINE_OPTION_%i\n", ENGINE_OPTION_PATH_RESOURCES);

  935.         if (! fUiServer.writeMessage(tmpBuf))

  936.             return;

  937.         if (! fUiServer.writeMessage("true\n", 5))

  938.             return;

  939.         std::sprintf(tmpBuf, "%s\n", options.resourceDir);

  940.         if (! fUiServer.writeMessage(tmpBuf))

  941.             return;

  942.         fUiServer.flushMessages();

  943.     }

  944. 

  945.     // -------------------------------------------------------------------

  946.     // Plugin parameter calls

  947. 

  948.     uint32_t getParameterCount() const

  949.     {

  950.         return kNumInParams + kNumOutParams;

  951.     }

  952. 

  953.     const NativeParameter* getParameterInfo(const uint32_t index) const

  954.     {

  955.         static NativeParameter param;

  956. 

  957.         static char strBufName[STR_MAX+1];

  958.         static char strBufUnit[STR_MAX+1];

  959. 

  960.         if (CarlaPlugin* const plugin = _getFirstPlugin())

  961.         {

  962.             if (index < plugin->getParameterCount())

  963.             {

  964.                 const ParameterData& paramData(plugin->getParameterData(index));

  965.                 const ParameterRanges& paramRanges(plugin->getParameterRanges(index));

  966. 

  967.                 plugin->getParameterName(index, strBufName);

  968.                 plugin->getParameterUnit(index, strBufUnit);

  969. 

  970.                 uint hints = 0x0;

  971. 

  972.                 if (paramData.hints & PARAMETER_IS_BOOLEAN)

  973.                     hints |= NATIVE_PARAMETER_IS_BOOLEAN;

  974.                 if (paramData.hints & PARAMETER_IS_INTEGER)

  975.                     hints |= NATIVE_PARAMETER_IS_INTEGER;

  976.                 if (paramData.hints & PARAMETER_IS_LOGARITHMIC)

  977.                     hints |= NATIVE_PARAMETER_IS_LOGARITHMIC;

  978.                 if (paramData.hints & PARAMETER_IS_AUTOMABLE)

  979.                     hints |= NATIVE_PARAMETER_IS_AUTOMABLE;

  980.                 if (paramData.hints & PARAMETER_USES_SAMPLERATE)

  981.                     hints |= NATIVE_PARAMETER_USES_SAMPLE_RATE;

  982.                 if (paramData.hints & PARAMETER_USES_SCALEPOINTS)

  983.                     hints |= NATIVE_PARAMETER_USES_SCALEPOINTS;

  984. 

  985.                 if (paramData.type == PARAMETER_INPUT || paramData.type == PARAMETER_OUTPUT)

  986.                 {

  987.                     if (paramData.hints & PARAMETER_IS_ENABLED)

  988.                         hints |= NATIVE_PARAMETER_IS_ENABLED;

  989.                     if (paramData.type == PARAMETER_OUTPUT)

  990.                         hints |= NATIVE_PARAMETER_IS_OUTPUT;

  991.                 }

  992. 

  993.                 param.hints = static_cast<NativeParameterHints>(hints);

  994.                 param.name  = strBufName;

  995.                 param.unit  = strBufUnit;

  996.                 param.ranges.def = paramRanges.def;

  997.                 param.ranges.min = paramRanges.min;

  998.                 param.ranges.max = paramRanges.max;

  999.                 param.ranges.step = paramRanges.step;

  1000.                 param.ranges.stepSmall = paramRanges.stepSmall;

  1001.                 param.ranges.stepLarge = paramRanges.stepLarge;

  1002.                 param.scalePointCount = 0; // TODO

  1003.                 param.scalePoints = nullptr;

  1004. 

  1005.                 return &param;

  1006.             }

  1007.         }

  1008. 

  1009.         param.hints = index < kNumInParams ? static_cast<NativeParameterHints>(0x0) : NATIVE_PARAMETER_IS_OUTPUT;

  1010.         param.name  = "Unused";

  1011.         param.unit  = "";

  1012.         param.ranges.def = 0.0f;

  1013.         param.ranges.min = 0.0f;

  1014.         param.ranges.max = 1.0f;

  1015.         param.ranges.step = 0.01f;

  1016.         param.ranges.stepSmall = 0.001f;

  1017.         param.ranges.stepLarge = 0.1f;

  1018.         param.scalePointCount = 0;

  1019.         param.scalePoints = nullptr;

  1020. 

  1021.         return &param;

  1022.     }

  1023. 

  1024.     float getParameterValue(const uint32_t index) const

  1025.     {

  1026.         if (CarlaPlugin* const plugin = _getFirstPlugin())

  1027.         {

  1028.             if (index < plugin->getParameterCount())

  1029.                 return plugin->getParameterValue(index);

  1030.         }

  1031. 

  1032.         return fParameters[index];

  1033.     }

  1034. 

  1035.     // -------------------------------------------------------------------

  1036.     // Plugin midi-program calls

  1037. 

  1038.     uint32_t getMidiProgramCount() const

  1039.     {

  1040.         if (CarlaPlugin* const plugin = _getFirstPlugin())

  1041.             return plugin->getMidiProgramCount();

  1042. 

  1043.         return 0;

  1044.     }

  1045. 

  1046.     const NativeMidiProgram* getMidiProgramInfo(const uint32_t index) const

  1047.     {

  1048.         if (CarlaPlugin* const plugin = _getFirstPlugin())

  1049.         {

  1050.             if (index < plugin->getMidiProgramCount())

  1051.             {

  1052.                 static NativeMidiProgram midiProg;

  1053. 

  1054.                 {

  1055.                     const MidiProgramData& midiProgData(plugin->getMidiProgramData(index));

  1056. 

  1057.                     midiProg.bank    = midiProgData.bank;

  1058.                     midiProg.program = midiProgData.program;

  1059.                     midiProg.name    = midiProgData.name;

  1060.                 }

  1061. 

  1062.                 return &midiProg;

  1063.             }

  1064.         }

  1065. 

  1066.         return nullptr;

  1067.     }

  1068. 

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

  1070.     // Plugin state calls

  1071. 

  1072.     void setParameterValue(const uint32_t index, const float value)

  1073.     {

  1074.         if (CarlaPlugin* const plugin = _getFirstPlugin())

  1075.         {

  1076.             if (index < plugin->getParameterCount())

  1077.                 plugin->setParameterValueRT(index, value);

  1078.         }

  1079. 

  1080.         fParameters[index] = value;

  1081.     }

  1082. 

  1083.     void setMidiProgram(const uint8_t, const uint32_t bank, const uint32_t program)

  1084.     {

  1085.         if (CarlaPlugin* const plugin = _getFirstPlugin())

  1086.             plugin->setMidiProgramById(bank, program, false, false, false);

  1087.     }

  1088. 

  1089.     // -------------------------------------------------------------------

  1090.     // Plugin process calls

  1091. 

  1092.     void activate()

  1093.     {

  1094. #if 0

  1095.         for (uint i=0; i < pData->curPluginCount; ++i)

  1096.         {

  1097.             CarlaPlugin* const plugin(pData->plugins[i].plugin);

  1098. 

  1099.             if (plugin == nullptr || ! plugin->isEnabled())

  1100.                 continue;

  1101. 

  1102.             plugin->setActive(true, true, false);

  1103.         }

  1104. #endif

  1105.         fIsActive = true;

  1106.     }

  1107. 

  1108.     void deactivate()

  1109.     {

  1110.         fIsActive = false;

  1111. #if 0

  1112.         for (uint i=0; i < pData->curPluginCount; ++i)

  1113.         {

  1114.             CarlaPlugin* const plugin(pData->plugins[i].plugin);

  1115. 

  1116.             if (plugin == nullptr || ! plugin->isEnabled())

  1117.                 continue;

  1118. 

  1119.             plugin->setActive(false, true, false);

  1120.         }

  1121. #endif

  1122. 

  1123.         // just in case

  1124.         //runPendingRtEvents();

  1125.     }

  1126. 

  1127.     void process(const float** const inBuffer, float** const outBuffer, const uint32_t frames,

  1128.                  const NativeMidiEvent* const midiEvents, const uint32_t midiEventCount)

  1129.     {

  1130.         if (frames > pData->bufferSize)

  1131.         {

  1132.             carla_stderr2("Host is calling process with too high number of frames! %u vs %u",

  1133.                           frames, pData->bufferSize);

  1134. 

  1135.             deactivate();

  1136.             bufferSizeChanged(frames);

  1137.             activate();

  1138.         }

  1139. 

  1140.         const PendingRtEventsRunner prt(this, frames, true);

  1141. 

  1142.         // ---------------------------------------------------------------

  1143.         // Time Info

  1144. 

  1145.         const NativeTimeInfo* const timeInfo(pHost->get_time_info(pHost->handle));

  1146. 

  1147.         pData->timeInfo.playing   = timeInfo->playing;

  1148.         pData->timeInfo.frame     = timeInfo->frame;

  1149.         pData->timeInfo.usecs     = timeInfo->usecs;

  1150.         pData->timeInfo.bbt.valid = timeInfo->bbt.valid;

  1151. 

  1152.         if (timeInfo->bbt.valid)

  1153.         {

  1154.             pData->timeInfo.bbt.bar = timeInfo->bbt.bar;

  1155.             pData->timeInfo.bbt.beat = timeInfo->bbt.beat;

  1156.             pData->timeInfo.bbt.tick = timeInfo->bbt.tick;

  1157.             pData->timeInfo.bbt.barStartTick = timeInfo->bbt.barStartTick;

  1158. 

  1159.             pData->timeInfo.bbt.beatsPerBar = timeInfo->bbt.beatsPerBar;

  1160.             pData->timeInfo.bbt.beatType = timeInfo->bbt.beatType;

  1161. 

  1162.             pData->timeInfo.bbt.ticksPerBeat = timeInfo->bbt.ticksPerBeat;

  1163.             pData->timeInfo.bbt.beatsPerMinute = timeInfo->bbt.beatsPerMinute;

  1164.         }

  1165. 

  1166.         // ---------------------------------------------------------------

  1167.         // Do nothing if no plugins and rack mode

  1168. 

  1169.         if (pData->curPluginCount == 0 && ! kIsPatchbay)

  1170.         {

  1171.             if (outBuffer[0] != inBuffer[0])

  1172.                 carla_copyFloats(outBuffer[0], inBuffer[0], frames);

  1173. 

  1174.             if (outBuffer[1] != inBuffer[1])

  1175.                 carla_copyFloats(outBuffer[1], inBuffer[1], frames);

  1176. 

  1177.             for (uint32_t i=0; i < midiEventCount; ++i)

  1178.             {

  1179.                 if (! pHost->write_midi_event(pHost->handle, &midiEvents[i]))

  1180.                     break;

  1181.             }

  1182.             return;

  1183.         }

  1184. 

  1185.         // ---------------------------------------------------------------

  1186.         // initialize events

  1187. 

  1188.         carla_zeroStructs(pData->events.in,  kMaxEngineEventInternalCount);

  1189.         carla_zeroStructs(pData->events.out, kMaxEngineEventInternalCount);

  1190. 

  1191.         // ---------------------------------------------------------------

  1192.         // events input (before processing)

  1193. 

  1194.         {

  1195.             uint32_t engineEventIndex = 0;

  1196. 

  1197.             for (uint32_t i=0; i < midiEventCount && engineEventIndex < kMaxEngineEventInternalCount; ++i)

  1198.             {

  1199.                 const NativeMidiEvent& midiEvent(midiEvents[i]);

  1200.                 EngineEvent&           engineEvent(pData->events.in[engineEventIndex++]);

  1201. 

  1202.                 engineEvent.time = midiEvent.time;

  1203.                 engineEvent.fillFromMidiData(midiEvent.size, midiEvent.data, 0);

  1204. 

  1205.                 if (engineEventIndex >= kMaxEngineEventInternalCount)

  1206.                     break;

  1207.             }

  1208.         }

  1209. 

  1210.         if (kIsPatchbay)

  1211.         {

  1212.             // -----------------------------------------------------------

  1213.             // process

  1214. 

  1215.             pData->graph.process(pData, inBuffer, outBuffer, frames);

  1216.         }

  1217.         else

  1218.         {

  1219.             // -----------------------------------------------------------

  1220.             // create audio buffers

  1221. 

  1222.             const float* inBuf[2]  = {  inBuffer[0],  inBuffer[1] };

  1223.             /* */ float* outBuf[2] = { outBuffer[0], outBuffer[1] };

  1224. 

  1225.             // -----------------------------------------------------------

  1226.             // process

  1227. 

  1228.             pData->graph.processRack(pData, inBuf, outBuf, frames);

  1229.         }

  1230. 

  1231.         // ---------------------------------------------------------------

  1232.         // events output (after processing)

  1233. 

  1234.         carla_zeroStructs(pData->events.in, kMaxEngineEventInternalCount);

  1235. 

  1236.         if (kHasMidiOut)

  1237.         {

  1238.             NativeMidiEvent midiEvent;

  1239. 

  1240.             for (uint32_t i=0; i < kMaxEngineEventInternalCount; ++i)

  1241.             {

  1242.                 const EngineEvent& engineEvent(pData->events.out[i]);

  1243. 

  1244.                 if (engineEvent.type == kEngineEventTypeNull)

  1245.                     break;

  1246. 

  1247.                 carla_zeroStruct(midiEvent);

  1248.                 midiEvent.time = engineEvent.time;

  1249. 

  1250.                 /**/ if (engineEvent.type == kEngineEventTypeControl)

  1251.                 {

  1252.                     midiEvent.port = 0;

  1253.                     midiEvent.size = engineEvent.ctrl.convertToMidiData(engineEvent.channel, midiEvent.data);

  1254.                 }

  1255.                 else if (engineEvent.type == kEngineEventTypeMidi)

  1256.                 {

  1257.                     if (engineEvent.midi.size > 4)

  1258.                         continue;

  1259. 

  1260.                     midiEvent.port = engineEvent.midi.port;

  1261.                     midiEvent.size = engineEvent.midi.size;

  1262. 

  1263.                     midiEvent.data[0] = static_cast<uint8_t>(engineEvent.midi.data[0] | (engineEvent.channel & MIDI_CHANNEL_BIT));

  1264. 

  1265.                     for (uint8_t j=1; j < midiEvent.size; ++j)

  1266.                         midiEvent.data[j] = engineEvent.midi.data[j];

  1267.                 }

  1268.                 else

  1269.                 {

  1270.                     continue;

  1271.                 }

  1272. 

  1273.                 if (midiEvent.size > 0)

  1274.                     pHost->write_midi_event(pHost->handle, &midiEvent);

  1275.             }

  1276.         }

  1277.     }

  1278. 

  1279.     // -------------------------------------------------------------------

  1280.     // Plugin UI calls

  1281. 

  1282.     void uiShow(const bool show)

  1283.     {

  1284.         if (show)

  1285.         {

  1286.             if (fUiServer.isPipeRunning())

  1287.             {

  1288.                 fUiServer.writeFocusMessage();

  1289.                 return;

  1290.             }

  1291. 

  1292.             CarlaString path(pHost->resourceDir);

  1293. 

  1294.             if (kIsPatchbay)

  1295.                 path += CARLA_OS_SEP_STR "carla-plugin-patchbay";

  1296.             else

  1297.                 path += CARLA_OS_SEP_STR "carla-plugin";

  1298. #ifdef CARLA_OS_WIN

  1299.             path += ".exe";

  1300. #endif

  1301.             carla_stdout("Trying to start carla-plugin using \"%s\"", path.buffer());

  1302. 

  1303.             fUiServer.setData(path, pData->sampleRate, pHost->uiName);

  1304. 

  1305.             if (! fUiServer.startPipeServer(false))

  1306.             {

  1307.                 pHost->dispatcher(pHost->handle, NATIVE_HOST_OPCODE_UI_UNAVAILABLE, 0, 0, nullptr, 0.0f);

  1308.                 return;

  1309.             }

  1310. 

  1311.             uiServerInfo();

  1312.             uiServerOptions();

  1313.             uiServerCallback(ENGINE_CALLBACK_ENGINE_STARTED,

  1314.                              pData->curPluginCount,

  1315.                              pData->options.processMode,

  1316.                              pData->options.transportMode,

  1317.                              static_cast<int>(pData->bufferSize),

  1318.                              static_cast<float>(pData->sampleRate),

  1319.                              "Plugin");

  1320. 

  1321.             fUiServer.writeShowMessage();

  1322. 

  1323.             for (uint i=0; i < pData->curPluginCount; ++i)

  1324.             {

  1325.                 CarlaPlugin* const plugin(pData->plugins[i].plugin);

  1326. 

  1327.                 if (plugin != nullptr && plugin->isEnabled())

  1328.                 {

  1329.                     uiServerCallback(ENGINE_CALLBACK_PLUGIN_ADDED, i, 0, 0, 0, 0.0f, plugin->getName());

  1330.                 }

  1331.             }

  1332. 

  1333.             if (kIsPatchbay)

  1334.                 patchbayRefresh(true, false, false);

  1335.         }

  1336.         else

  1337.         {

  1338.             fUiServer.stopPipeServer(2000);

  1339. 

  1340.             // hide all custom uis

  1341.             for (uint i=0; i < pData->curPluginCount; ++i)

  1342.             {

  1343.                 CarlaPlugin* const plugin(pData->plugins[i].plugin);

  1344. 

  1345.                 if (plugin != nullptr && plugin->isEnabled())

  1346.                 {

  1347.                     if (plugin->getHints() & PLUGIN_HAS_CUSTOM_UI)

  1348.                     {

  1349.                         try {

  1350.                             plugin->showCustomUI(false);

  1351.                         } CARLA_SAFE_EXCEPTION_CONTINUE("Plugin showCustomUI (hide)");

  1352.                     }

  1353.                 }

  1354.             }

  1355.         }

  1356.     }

  1357. 

  1358.     void uiIdle()

  1359.     {

  1360.         for (uint i=0; i < pData->curPluginCount; ++i)

  1361.         {

  1362.             CarlaPlugin* const plugin(pData->plugins[i].plugin);

  1363. 

  1364.             if (plugin != nullptr && plugin->isEnabled())

  1365.             {

  1366.                 const uint hints(plugin->getHints());

  1367. 

  1368.                 if ((hints & PLUGIN_HAS_CUSTOM_UI) != 0 && (hints & PLUGIN_NEEDS_UI_MAIN_THREAD) != 0)

  1369.                 {

  1370.                     try {

  1371.                         plugin->uiIdle();

  1372.                     } CARLA_SAFE_EXCEPTION_CONTINUE("Plugin uiIdle");

  1373.                 }

  1374.             }

  1375.         }

  1376. 

  1377.         idlePipe();

  1378. 

  1379.         switch (fUiServer.getAndResetUiState())

  1380.         {

  1381.         case CarlaExternalUI::UiNone:

  1382.         case CarlaExternalUI::UiShow:

  1383.             break;

  1384.         case CarlaExternalUI::UiCrashed:

  1385.             pHost->dispatcher(pHost->handle, NATIVE_HOST_OPCODE_UI_UNAVAILABLE, 0, 0, nullptr, 0.0f);

  1386.             break;

  1387.         case CarlaExternalUI::UiHide:

  1388.             pHost->ui_closed(pHost->handle);

  1389.             fUiServer.stopPipeServer(1000);

  1390.             break;

  1391.         }

  1392.     }

  1393. 

  1394.     void uiSetParameterValue(const uint32_t index, const float value)

  1395.     {

  1396.         if (CarlaPlugin* const plugin = _getFirstPlugin())

  1397.         {

  1398.             if (index < plugin->getParameterCount())

  1399.                 plugin->uiParameterChange(index, value);

  1400.         }

  1401.     }

  1402. 

  1403.     void idlePipe()

  1404.     {

  1405.         if (! fUiServer.isPipeRunning())

  1406.             return;

  1407. 

  1408.         fUiServer.idlePipe();

  1409. 

  1410.         char tmpBuf[STR_MAX];

  1411.         carla_zeroChars(tmpBuf, STR_MAX);

  1412. 

  1413.         const CarlaMutexLocker cml(fUiServer.getPipeLock());

  1414.         const CarlaScopedLocale csl;

  1415.         const EngineTimeInfo& timeInfo(pData->timeInfo);

  1416. 

  1417.         // ------------------------------------------------------------------------------------------------------------

  1418.         // send engine info

  1419. 

  1420.         if (! fUiServer.writeAndFixMessage("runtime-info"))

  1421.             return;

  1422.         std::sprintf(tmpBuf, "%f:0\n", static_cast<double>(getDSPLoad()));

  1423.         if (! fUiServer.writeMessage(tmpBuf))

  1424.             return;

  1425. 

  1426.         fUiServer.flushMessages();

  1427. 

  1428.         // ------------------------------------------------------------------------------------------------------------

  1429.         // send transport

  1430. 

  1431.         if (! fUiServer.writeAndFixMessage("transport"))

  1432.             return;

  1433.         if (! fUiServer.writeMessage(timeInfo.playing ? "true\n" : "false\n"))

  1434.             return;

  1435. 

  1436.         if (timeInfo.bbt.valid)

  1437.         {

  1438.             std::sprintf(tmpBuf, P_UINT64 ":%i:%i:%i\n",

  1439.                          timeInfo.frame, timeInfo.bbt.bar, timeInfo.bbt.beat, static_cast<int>(timeInfo.bbt.tick + 0.5));

  1440.             if (! fUiServer.writeMessage(tmpBuf))

  1441.                 return;

  1442. 

  1443.             std::sprintf(tmpBuf, "%f\n", timeInfo.bbt.beatsPerMinute);

  1444.             if (! fUiServer.writeMessage(tmpBuf))

  1445.                 return;

  1446.         }

  1447.         else

  1448.         {

  1449.             std::sprintf(tmpBuf, P_UINT64 ":0:0:0\n", timeInfo.frame);

  1450.             if (! fUiServer.writeMessage(tmpBuf))

  1451.                 return;

  1452. 

  1453.             if (! fUiServer.writeMessage("0.0\n"))

  1454.                 return;

  1455.         }

  1456. 

  1457.         fUiServer.flushMessages();

  1458. 

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

  1460.         // send peaks and param outputs for all plugins

  1461. 

  1462.         for (uint i=0; i < pData->curPluginCount; ++i)

  1463.         {

  1464.             const EnginePluginData& plugData(pData->plugins[i]);

  1465.             const CarlaPlugin* const plugin(pData->plugins[i].plugin);

  1466. 

  1467.             std::sprintf(tmpBuf, "PEAKS_%i\n", i);

  1468.             if (! fUiServer.writeMessage(tmpBuf))

  1469.                 return;

  1470. 

  1471.             std::sprintf(tmpBuf, "%f:%f:%f:%f\n",

  1472.                          static_cast<double>(plugData.peaks[0]),

  1473.                          static_cast<double>(plugData.peaks[1]),

  1474.                          static_cast<double>(plugData.peaks[2]),

  1475.                          static_cast<double>(plugData.peaks[3]));

  1476.             if (! fUiServer.writeMessage(tmpBuf))

  1477.                 return;

  1478. 

  1479.             fUiServer.flushMessages();

  1480. 

  1481.             for (uint32_t j=0, count=plugin->getParameterCount(); j < count; ++j)

  1482.             {

  1483.                 if (! plugin->isParameterOutput(j))

  1484.                     continue;

  1485. 

  1486.                 std::sprintf(tmpBuf, "PARAMVAL_%i:%i\n", i, j);

  1487.                 if (! fUiServer.writeMessage(tmpBuf))

  1488.                     return;

  1489. 

  1490.                 std::sprintf(tmpBuf, "%f\n", static_cast<double>(plugin->getParameterValue(j)));

  1491.                 if (! fUiServer.writeMessage(tmpBuf))

  1492.                     return;

  1493. 

  1494.                 fUiServer.flushMessages();

  1495.             }

  1496.         }

  1497.     }

  1498. 

  1499.     // -------------------------------------------------------------------

  1500.     // Plugin state calls

  1501. 

  1502.     char* getState() const

  1503.     {

  1504.         MemoryOutputStream out;

  1505.         saveProjectInternal(out);

  1506.         return strdup(out.toString().toRawUTF8());

  1507.     }

  1508. 

  1509.     void setState(const char* const data)

  1510.     {

  1511.         // remove all plugins from UI side

  1512.         for (uint i=0, count=pData->curPluginCount; i < count; ++i)

  1513.             CarlaEngine::callback(true, true, ENGINE_CALLBACK_PLUGIN_REMOVED, count-i-1, 0, 0, 0, 0.0f, nullptr);

  1514. 

  1515.         // remove all plugins from backend, no lock

  1516.         fIsRunning = false;

  1517.         removeAllPlugins();

  1518.         fIsRunning = true;

  1519. 

  1520.         // stopped during removeAllPlugins()

  1521.         if (! pData->thread.isThreadRunning())

  1522.             pData->thread.startThread();

  1523. 

  1524.         fOptionsForced = true;

  1525.         const String state(data);

  1526.         XmlDocument xml(state);

  1527.         loadProjectInternal(xml);

  1528.     }

  1529. 

  1530.     // -------------------------------------------------------------------

  1531. 

  1532. public:

  1533.     #define handlePtr ((CarlaEngineNative*)handle)

  1534. 

  1535.     static NativePluginHandle _instantiateRack(const NativeHostDescriptor* host)

  1536.     {

  1537.         return new CarlaEngineNative(host, false, true);

  1538.     }

  1539. 

  1540.     static NativePluginHandle _instantiateRackNoMidiOut(const NativeHostDescriptor* host)

  1541.     {

  1542.         return new CarlaEngineNative(host, false, false);

  1543.     }

  1544. 

  1545.     static NativePluginHandle _instantiatePatchbay(const NativeHostDescriptor* host)

  1546.     {

  1547.         return new CarlaEngineNative(host, true, true);

  1548.     }

  1549. 

  1550.     static NativePluginHandle _instantiatePatchbay3s(const NativeHostDescriptor* host)

  1551.     {

  1552.         return new CarlaEngineNative(host, true, true, 3, 2);

  1553.     }

  1554. 

  1555.     static NativePluginHandle _instantiatePatchbay16(const NativeHostDescriptor* host)

  1556.     {

  1557.         return new CarlaEngineNative(host, true, true, 16, 16);

  1558.     }

  1559. 

  1560.     static NativePluginHandle _instantiatePatchbay32(const NativeHostDescriptor* host)

  1561.     {

  1562.         return new CarlaEngineNative(host, true, true, 32, 32);

  1563.     }

  1564. 

  1565.     static void _cleanup(NativePluginHandle handle)

  1566.     {

  1567.         delete handlePtr;

  1568.     }

  1569. 

  1570.     static uint32_t _get_parameter_count(NativePluginHandle handle)

  1571.     {

  1572.         return handlePtr->getParameterCount();

  1573.     }

  1574. 

  1575.     static const NativeParameter* _get_parameter_info(NativePluginHandle handle, uint32_t index)

  1576.     {

  1577.         return handlePtr->getParameterInfo(index);

  1578.     }

  1579. 

  1580.     static float _get_parameter_value(NativePluginHandle handle, uint32_t index)

  1581.     {

  1582.         return handlePtr->getParameterValue(index);

  1583.     }

  1584. 

  1585.     static uint32_t _get_midi_program_count(NativePluginHandle handle)

  1586.     {

  1587.         return handlePtr->getMidiProgramCount();

  1588.     }

  1589. 

  1590.     static const NativeMidiProgram* _get_midi_program_info(NativePluginHandle handle, uint32_t index)

  1591.     {

  1592.         return handlePtr->getMidiProgramInfo(index);

  1593.     }

  1594. 

  1595.     static void _set_parameter_value(NativePluginHandle handle, uint32_t index, float value)

  1596.     {

  1597.         handlePtr->setParameterValue(index, value);

  1598.     }

  1599. 

  1600.     static void _set_midi_program(NativePluginHandle handle, uint8_t channel, uint32_t bank, uint32_t program)

  1601.     {

  1602.         handlePtr->setMidiProgram(channel, bank, program);

  1603.     }

  1604. 

  1605.     static void _ui_show(NativePluginHandle handle, bool show)

  1606.     {

  1607.         handlePtr->uiShow(show);

  1608.     }

  1609. 

  1610.     static void _ui_idle(NativePluginHandle handle)

  1611.     {

  1612.         handlePtr->uiIdle();

  1613.     }

  1614. 

  1615.     static void _ui_set_parameter_value(NativePluginHandle handle, uint32_t index, float value)

  1616.     {

  1617.         handlePtr->uiSetParameterValue(index, value);

  1618.     }

  1619. 

  1620.     static void _activate(NativePluginHandle handle)

  1621.     {

  1622.         handlePtr->activate();

  1623.     }

  1624. 

  1625.     static void _deactivate(NativePluginHandle handle)

  1626.     {

  1627.         handlePtr->deactivate();

  1628.     }

  1629. 

  1630.     static void _process(NativePluginHandle handle,

  1631.                          const float** inBuffer, float** outBuffer, const uint32_t frames,

  1632.                          const NativeMidiEvent* midiEvents, uint32_t midiEventCount)

  1633.     {

  1634.         handlePtr->process(inBuffer, outBuffer, frames, midiEvents, midiEventCount);

  1635.     }

  1636. 

  1637.     static char* _get_state(NativePluginHandle handle)

  1638.     {

  1639.         return handlePtr->getState();

  1640.     }

  1641. 

  1642.     static void _set_state(NativePluginHandle handle, const char* data)

  1643.     {

  1644.         handlePtr->setState(data);

  1645.     }

  1646. 

  1647.     static intptr_t _dispatcher(NativePluginHandle handle,

  1648.                                 NativePluginDispatcherOpcode opcode, int32_t index, intptr_t value, void* ptr, float opt)

  1649.     {

  1650.         switch(opcode)

  1651.         {

  1652.         case NATIVE_PLUGIN_OPCODE_NULL:

  1653.             return 0;

  1654.         case NATIVE_PLUGIN_OPCODE_BUFFER_SIZE_CHANGED:

  1655.             CARLA_SAFE_ASSERT_RETURN(value > 0, 0);

  1656.             handlePtr->bufferSizeChanged(static_cast<uint32_t>(value));

  1657.             return 0;

  1658.         case NATIVE_PLUGIN_OPCODE_SAMPLE_RATE_CHANGED:

  1659.             CARLA_SAFE_ASSERT_RETURN(opt > 0.0f, 0);

  1660.             handlePtr->sampleRateChanged(static_cast<double>(opt));

  1661.             return 0;

  1662.         case NATIVE_PLUGIN_OPCODE_OFFLINE_CHANGED:

  1663.             handlePtr->offlineModeChanged(value != 0);

  1664.             return 0;

  1665.         case NATIVE_PLUGIN_OPCODE_UI_NAME_CHANGED:

  1666.             //handlePtr->uiNameChanged(static_cast<const char*>(ptr));

  1667.             return 0;

  1668.         case NATIVE_PLUGIN_OPCODE_GET_INTERNAL_HANDLE: {

  1669.             CarlaEngineNative* const engine = handlePtr;

  1670.             return (intptr_t)(CarlaEngine*)engine;

  1671.         }

  1672.         }

  1673. 

  1674.         return 0;

  1675. 

  1676.         // unused

  1677.         (void)index;

  1678.         (void)ptr;

  1679.     }

  1680. 

  1681.     // -------------------------------------------------------------------

  1682. 

  1683.     static void _ui_server_callback(void* handle, EngineCallbackOpcode action, uint pluginId,

  1684.                                     int value1, int value2, int value3,

  1685.                                     float valuef, const char* valueStr)

  1686.     {

  1687.         handlePtr->uiServerCallback(action, pluginId, value1, value2, value3, valuef, valueStr);

  1688.     }

  1689. 

  1690.     static const char* _ui_file_callback(void* handle, FileCallbackOpcode action, bool isDir,

  1691.                                          const char* title, const char* filter)

  1692.     {

  1693.         return handlePtr->uiFileCallback(action, isDir, title, filter);

  1694.     }

  1695. 

  1696.     // -------------------------------------------------------------------

  1697. 

  1698.     #undef handlePtr

  1699. 

  1700. private:

  1701.     const NativeHostDescriptor* const pHost;

  1702. 

  1703. #ifdef USE_JUCE_MESSAGE_THREAD

  1704.     const bool kNeedsJuceMsgThread;

  1705.     const juce::SharedResourcePointer<SharedJuceMessageThread> fJuceMsgThread;

  1706. #endif

  1707. 

  1708.     const bool kIsPatchbay; // rack if false

  1709.     const bool kHasMidiOut;

  1710.     bool fIsActive, fIsRunning;

  1711.     CarlaEngineNativeUI fUiServer;

  1712. 

  1713.     float fParameters[kNumInParams+kNumOutParams];

  1714. 

  1715.     bool fOptionsForced;

  1716. 

  1717.     CarlaPlugin* _getFirstPlugin() const noexcept

  1718.     {

  1719.         if (pData->curPluginCount == 0 || pData->plugins == nullptr)

  1720.             return nullptr;

  1721. 

  1722.         CarlaPlugin* const plugin(pData->plugins[0].plugin);

  1723. 

  1724.         if (plugin == nullptr || ! plugin->isEnabled())

  1725.             return nullptr;

  1726. 

  1727.         return pData->plugins[0].plugin;

  1728.     }

  1729. 

  1730.     CARLA_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR(CarlaEngineNative)

  1731. };

  1732. 

  1733. // -----------------------------------------------------------------------

  1734. 

  1735. bool CarlaEngineNativeUI::msgReceived(const char*const msg) noexcept

  1736. {

  1737.     if (CarlaExternalUI::msgReceived(msg))

  1738.         return true;

  1739. 

  1740.     bool ok = true;

  1741. 

  1742.     if (std::strcmp(msg, "set_engine_option") == 0)

  1743.     {

  1744.         uint32_t option;

  1745.         int32_t value;

  1746.         const char* valueStr = nullptr;

  1747. 

  1748.         CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(option), true);

  1749.         CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(value), true);

  1750.         readNextLineAsString(valueStr); // can be null

  1751. 

  1752.         try {

  1753.             fEngine->setOption(static_cast<EngineOption>(option), value, valueStr);

  1754.         } CARLA_SAFE_EXCEPTION("setOption");

  1755. 

  1756.         if (valueStr != nullptr)

  1757.             delete[] valueStr;

  1758.     }

  1759.     else if (std::strcmp(msg, "clear_engine_xruns") == 0)

  1760.     {

  1761.         fEngine->clearXruns();

  1762.     }

  1763.     else if (std::strcmp(msg, "cancel_engine_action") == 0)

  1764.     {

  1765.         fEngine->setActionCanceled(true);

  1766.     }

  1767.     else if (std::strcmp(msg, "load_file") == 0)

  1768.     {

  1769.         const char* filename;

  1770. 

  1771.         CARLA_SAFE_ASSERT_RETURN(readNextLineAsString(filename), true);

  1772. 

  1773.         try {

  1774.             ok = fEngine->loadFile(filename);

  1775.         } CARLA_SAFE_EXCEPTION("loadFile");

  1776. 

  1777.         delete[] filename;

  1778.     }

  1779.     else if (std::strcmp(msg, "load_project") == 0)

  1780.     {

  1781.         const char* filename;

  1782. 

  1783.         CARLA_SAFE_ASSERT_RETURN(readNextLineAsString(filename), true);

  1784. 

  1785.         try {

  1786.             ok = fEngine->loadProject(filename, true);

  1787.         } CARLA_SAFE_EXCEPTION("loadProject");

  1788. 

  1789.         delete[] filename;

  1790.     }

  1791.     else if (std::strcmp(msg, "save_project") == 0)

  1792.     {

  1793.         const char* filename;

  1794. 

  1795.         CARLA_SAFE_ASSERT_RETURN(readNextLineAsString(filename), true);

  1796. 

  1797.         try {

  1798.             ok = fEngine->saveProject(filename, true);

  1799.         } CARLA_SAFE_EXCEPTION("saveProject");

  1800. 

  1801.         delete[] filename;

  1802.     }

  1803.     else if (std::strcmp(msg, "clear_project_filename") == 0)

  1804.     {

  1805.         fEngine->clearCurrentProjectFilename();

  1806.     }

  1807.     else if (std::strcmp(msg, "patchbay_connect") == 0)

  1808.     {

  1809.         bool external;

  1810.         uint32_t groupA, portA, groupB, portB;

  1811. 

  1812.         CARLA_SAFE_ASSERT_RETURN(readNextLineAsBool(external), true);

  1813.         CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(groupA), true);

  1814.         CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(portA), true);

  1815.         CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(groupB), true);

  1816.         CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(portB), true);

  1817. 

  1818.         try {

  1819.             ok = fEngine->patchbayConnect(external, groupA, portA, groupB, portB);

  1820.         } CARLA_SAFE_EXCEPTION("patchbayConnect");

  1821.     }

  1822.     else if (std::strcmp(msg, "patchbay_disconnect") == 0)

  1823.     {

  1824.         bool external;

  1825.         uint32_t connectionId;

  1826. 

  1827.         CARLA_SAFE_ASSERT_RETURN(readNextLineAsBool(external), true);

  1828.         CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(connectionId), true);

  1829. 

  1830.         try {

  1831.             ok = fEngine->patchbayDisconnect(external, connectionId);

  1832.         } CARLA_SAFE_EXCEPTION("patchbayDisconnect");

  1833.     }

  1834.     else if (std::strcmp(msg, "patchbay_refresh") == 0)

  1835.     {

  1836.         bool external;

  1837.         CARLA_SAFE_ASSERT_RETURN(readNextLineAsBool(external), true);

  1838. 

  1839.         try {

  1840.             ok = fEngine->patchbayRefresh(true, false, external);

  1841.         } CARLA_SAFE_EXCEPTION("patchbayRefresh");

  1842.     }

  1843.     else if (std::strcmp(msg, "transport_play") == 0)

  1844.     {

  1845.         fEngine->transportPlay();

  1846.     }

  1847.     else if (std::strcmp(msg, "transport_pause") == 0)

  1848.     {

  1849.         fEngine->transportPause();

  1850.     }

  1851.     else if (std::strcmp(msg, "transport_bpm") == 0)

  1852.     {

  1853.         double bpm;

  1854. 

  1855.         CARLA_SAFE_ASSERT_RETURN(readNextLineAsDouble(bpm), true);

  1856. 

  1857.         fEngine->transportBPM(bpm);

  1858.     }

  1859.     else if (std::strcmp(msg, "transport_relocate") == 0)

  1860.     {

  1861.         uint64_t frame;

  1862. 

  1863.         CARLA_SAFE_ASSERT_RETURN(readNextLineAsULong(frame), true);

  1864. 

  1865.         fEngine->transportRelocate(frame);

  1866.     }

  1867.     else if (std::strcmp(msg, "add_plugin") == 0)

  1868.     {

  1869.         uint32_t btype, ptype;

  1870.         const char* filename = nullptr;

  1871.         const char* name;

  1872.         const char* label;

  1873.         int64_t uniqueId;

  1874.         uint options;

  1875. 

  1876.         CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(btype), true);

  1877.         CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(ptype), true);

  1878.         readNextLineAsString(filename); // can be null

  1879.         CARLA_SAFE_ASSERT_RETURN(readNextLineAsString(name), true);

  1880.         CARLA_SAFE_ASSERT_RETURN(readNextLineAsString(label), true);

  1881.         CARLA_SAFE_ASSERT_RETURN(readNextLineAsLong(uniqueId), true);

  1882.         CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(options), true);

  1883. 

  1884.         if (filename != nullptr && std::strcmp(filename, "(null)") == 0)

  1885.         {

  1886.             delete[] filename;

  1887.             filename = nullptr;

  1888.         }

  1889. 

  1890.         if (std::strcmp(name, "(null)") == 0)

  1891.         {

  1892.             delete[] name;

  1893.             name = nullptr;

  1894.         }

  1895. 

  1896.         ok = fEngine->addPlugin(static_cast<BinaryType>(btype), static_cast<PluginType>(ptype),

  1897.                                 filename, name, label, uniqueId, nullptr, options);

  1898. 

  1899.         if (filename != nullptr)

  1900.             delete[] filename;

  1901.         if (name != nullptr)

  1902.             delete[] name;

  1903.         delete[] label;

  1904. 

  1905.         fEngine->reloadFromUI();

  1906.     }

  1907.     else if (std::strcmp(msg, "remove_plugin") == 0)

  1908.     {

  1909.         uint32_t pluginId;

  1910. 

  1911.         CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(pluginId), true);

  1912. 

  1913.         ok = fEngine->removePlugin(pluginId);

  1914. 

  1915.         if (pluginId == 0)

  1916.             fEngine->reloadFromUI();

  1917.     }

  1918.     else if (std::strcmp(msg, "remove_all_plugins") == 0)

  1919.     {

  1920.         ok = fEngine->removeAllPlugins();

  1921.         fEngine->reloadFromUI();

  1922.     }

  1923.     else if (std::strcmp(msg, "rename_plugin") == 0)

  1924.     {

  1925.         uint32_t pluginId;

  1926.         const char* newName;

  1927. 

  1928.         CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(pluginId), true);

  1929.         CARLA_SAFE_ASSERT_RETURN(readNextLineAsString(newName), true);

  1930. 

  1931.         ok = fEngine->renamePlugin(pluginId, newName);

  1932. 

  1933.         delete[] newName;

  1934.     }

  1935.     else if (std::strcmp(msg, "clone_plugin") == 0)

  1936.     {

  1937.         uint32_t pluginId;

  1938. 

  1939.         CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(pluginId), true);

  1940. 

  1941.         ok = fEngine->clonePlugin(pluginId);

  1942.     }

  1943.     else if (std::strcmp(msg, "replace_plugin") == 0)

  1944.     {

  1945.         uint32_t pluginId;

  1946. 

  1947.         CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(pluginId), true);

  1948. 

  1949.         ok = fEngine->replacePlugin(pluginId);

  1950.     }

  1951.     else if (std::strcmp(msg, "switch_plugins") == 0)

  1952.     {

  1953.         uint32_t pluginIdA, pluginIdB;

  1954. 

  1955.         CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(pluginIdA), true);

  1956.         CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(pluginIdB), true);

  1957. 

  1958.         ok = fEngine->switchPlugins(pluginIdA, pluginIdB);

  1959. 

  1960.         if (pluginIdA == 0 || pluginIdB == 0)

  1961.             fEngine->reloadFromUI();

  1962.     }

  1963.     else if (std::strcmp(msg, "load_plugin_state") == 0)

  1964.     {

  1965.         uint32_t pluginId;

  1966.         const char* filename;

  1967. 

  1968.         CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(pluginId), true);

  1969.         CARLA_SAFE_ASSERT_RETURN(readNextLineAsString(filename), true);

  1970. 

  1971.         if (CarlaPlugin* const plugin = fEngine->getPlugin(pluginId))

  1972.         {

  1973.             plugin->loadStateFromFile(filename);

  1974.             _updateParamValues(plugin, pluginId, false, true);

  1975.         }

  1976. 

  1977.         delete[] filename;

  1978.     }

  1979.     else if (std::strcmp(msg, "save_plugin_state") == 0)

  1980.     {

  1981.         uint32_t pluginId;

  1982.         const char* filename;

  1983. 

  1984.         CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(pluginId), true);

  1985.         CARLA_SAFE_ASSERT_RETURN(readNextLineAsString(filename), true);

  1986. 

  1987.         if (CarlaPlugin* const plugin = fEngine->getPlugin(pluginId))

  1988.             plugin->saveStateToFile(filename);

  1989. 

  1990.         delete[] filename;

  1991.     }

  1992.     else if (std::strcmp(msg, "set_option") == 0)

  1993.     {

  1994.         uint32_t pluginId, option;

  1995.         bool yesNo;

  1996. 

  1997.         CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(pluginId), true);

  1998.         CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(option), true);

  1999.         CARLA_SAFE_ASSERT_RETURN(readNextLineAsBool(yesNo), true);

  2000. 

  2001.         if (CarlaPlugin* const plugin = fEngine->getPlugin(pluginId))

  2002.             plugin->setOption(option, yesNo, false);

  2003.     }

  2004.     else if (std::strcmp(msg, "set_active") == 0)

  2005.     {

  2006.         uint32_t pluginId;

  2007.         bool onOff;

  2008. 

  2009.         CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(pluginId), true);

  2010.         CARLA_SAFE_ASSERT_RETURN(readNextLineAsBool(onOff), true);

  2011. 

  2012.         if (CarlaPlugin* const plugin = fEngine->getPlugin(pluginId))

  2013.             plugin->setActive(onOff, true, false);

  2014.     }

  2015.     else if (std::strcmp(msg, "set_drywet") == 0)

  2016.     {

  2017.         uint32_t pluginId;

  2018.         float value;

  2019. 

  2020.         CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(pluginId), true);

  2021.         CARLA_SAFE_ASSERT_RETURN(readNextLineAsFloat(value), true);

  2022. 

  2023.         if (CarlaPlugin* const plugin = fEngine->getPlugin(pluginId))

  2024.             plugin->setDryWet(value, true, false);

  2025.     }

  2026.     else if (std::strcmp(msg, "set_volume") == 0)

  2027.     {

  2028.         uint32_t pluginId;

  2029.         float value;

  2030. 

  2031.         CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(pluginId), true);

  2032.         CARLA_SAFE_ASSERT_RETURN(readNextLineAsFloat(value), true);

  2033. 

  2034.         if (CarlaPlugin* const plugin = fEngine->getPlugin(pluginId))

  2035.             plugin->setVolume(value, true, false);

  2036.     }

  2037.     else if (std::strcmp(msg, "set_balance_left") == 0)

  2038.     {

  2039.         uint32_t pluginId;

  2040.         float value;

  2041. 

  2042.         CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(pluginId), true);

  2043.         CARLA_SAFE_ASSERT_RETURN(readNextLineAsFloat(value), true);

  2044. 

  2045.         if (CarlaPlugin* const plugin = fEngine->getPlugin(pluginId))

  2046.             plugin->setBalanceLeft(value, true, false);

  2047.     }

  2048.     else if (std::strcmp(msg, "set_balance_right") == 0)

  2049.     {

  2050.         uint32_t pluginId;

  2051.         float value;

  2052. 

  2053.         CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(pluginId), true);

  2054.         CARLA_SAFE_ASSERT_RETURN(readNextLineAsFloat(value), true);

  2055. 

  2056.         if (CarlaPlugin* const plugin = fEngine->getPlugin(pluginId))

  2057.             plugin->setBalanceRight(value, true, false);

  2058.     }

  2059.     else if (std::strcmp(msg, "set_panning") == 0)

  2060.     {

  2061.         uint32_t pluginId;

  2062.         float value;

  2063. 

  2064.         CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(pluginId), true);

  2065.         CARLA_SAFE_ASSERT_RETURN(readNextLineAsFloat(value), true);

  2066. 

  2067.         if (CarlaPlugin* const plugin = fEngine->getPlugin(pluginId))

  2068.             plugin->setPanning(value, true, false);

  2069.     }

  2070.     else if (std::strcmp(msg, "set_ctrl_channel") == 0)

  2071.     {

  2072.         uint32_t pluginId;

  2073.         int32_t channel;

  2074. 

  2075.         CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(pluginId), true);

  2076.         CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(channel), true);

  2077.         CARLA_SAFE_ASSERT_RETURN(channel >= -1 && channel < MAX_MIDI_CHANNELS, true);

  2078. 

  2079.         if (CarlaPlugin* const plugin = fEngine->getPlugin(pluginId))

  2080.             plugin->setCtrlChannel(int8_t(channel), true, false);

  2081.     }

  2082.     else if (std::strcmp(msg, "set_parameter_value") == 0)

  2083.     {

  2084.         uint32_t pluginId, parameterId;

  2085.         float value;

  2086. 

  2087.         CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(pluginId), true);

  2088.         CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(parameterId), true);

  2089.         CARLA_SAFE_ASSERT_RETURN(readNextLineAsFloat(value), true);

  2090. 

  2091.         if (CarlaPlugin* const plugin = fEngine->getPlugin(pluginId))

  2092.         {

  2093.             plugin->setParameterValue(parameterId, value, true, true, false);

  2094.             fEngine->setParameterValueFromUI(pluginId, parameterId, value);

  2095.         }

  2096.     }

  2097.     else if (std::strcmp(msg, "set_parameter_midi_channel") == 0)

  2098.     {

  2099.         uint32_t pluginId, parameterId, channel;

  2100. 

  2101.         CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(pluginId), true);

  2102.         CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(parameterId), true);

  2103.         CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(channel), true);

  2104.         CARLA_SAFE_ASSERT_RETURN(channel < MAX_MIDI_CHANNELS, true);

  2105. 

  2106.         if (CarlaPlugin* const plugin = fEngine->getPlugin(pluginId))

  2107.             plugin->setParameterMidiChannel(parameterId, static_cast<uint8_t>(channel), true, false);

  2108.     }

  2109.     else if (std::strcmp(msg, "set_parameter_midi_cc") == 0)

  2110.     {

  2111.         uint32_t pluginId, parameterId;

  2112.         int32_t cc;

  2113. 

  2114.         CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(pluginId), true);

  2115.         CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(parameterId), true);

  2116.         CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(cc), true);

  2117.         CARLA_SAFE_ASSERT_RETURN(cc >= -1 && cc < MAX_MIDI_CONTROL, true);

  2118. 

  2119.         if (CarlaPlugin* const plugin = fEngine->getPlugin(pluginId))

  2120.             plugin->setParameterMidiCC(parameterId, static_cast<int16_t>(cc), true, false);

  2121.     }

  2122.     else if (std::strcmp(msg, "set_parameter_touch") == 0)

  2123.     {

  2124.         uint32_t pluginId, parameterId;

  2125.         bool touching;

  2126. 

  2127.         CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(pluginId), true);

  2128.         CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(parameterId), true);

  2129.         CARLA_SAFE_ASSERT_RETURN(readNextLineAsBool(touching), true);

  2130. 

  2131.         if (fEngine->getPlugin(pluginId) != nullptr)

  2132.             fEngine->setParameterTouchFromUI(pluginId, parameterId, touching);

  2133.     }

  2134.     else if (std::strcmp(msg, "set_program") == 0)

  2135.     {

  2136.         uint32_t pluginId;

  2137.         int32_t index;

  2138. 

  2139.         CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(pluginId), true);

  2140.         CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(index), true);

  2141. 

  2142.         if (CarlaPlugin* const plugin = fEngine->getPlugin(pluginId))

  2143.         {

  2144.             plugin->setProgram(index, true, true, false);

  2145.             _updateParamValues(plugin, pluginId, true, true);

  2146.         }

  2147.     }

  2148.     else if (std::strcmp(msg, "set_midi_program") == 0)

  2149.     {

  2150.         uint32_t pluginId;

  2151.         int32_t index;

  2152. 

  2153.         CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(pluginId), true);

  2154.         CARLA_SAFE_ASSERT_RETURN(readNextLineAsInt(index), true);

  2155. 

  2156.         if (CarlaPlugin* const plugin = fEngine->getPlugin(pluginId))

  2157.         {

  2158.             plugin->setMidiProgram(index, true, true, false);

  2159.             _updateParamValues(plugin, pluginId, true, true);

  2160.         }

  2161.     }

  2162.     else if (std::strcmp(msg, "set_custom_data") == 0)

  2163.     {

  2164.         uint32_t pluginId;

  2165.         const char* type;

  2166.         const char* key;

  2167.         const char* value;

  2168. 

  2169.         CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(pluginId), true);

  2170.         CARLA_SAFE_ASSERT_RETURN(readNextLineAsString(type), true);

  2171.         CARLA_SAFE_ASSERT_RETURN(readNextLineAsString(key), true);

  2172.         CARLA_SAFE_ASSERT_RETURN(readNextLineAsString(value), true);

  2173. 

  2174.         if (CarlaPlugin* const plugin = fEngine->getPlugin(pluginId))

  2175.             plugin->setCustomData(type, key, value, true);

  2176. 

  2177.         delete[] type;

  2178.         delete[] key;

  2179.         delete[] value;

  2180.     }

  2181.     else if (std::strcmp(msg, "set_chunk_data") == 0)

  2182.     {

  2183.         uint32_t pluginId;

  2184.         const char* cdata;

  2185. 

  2186.         CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(pluginId), true);

  2187.         CARLA_SAFE_ASSERT_RETURN(readNextLineAsString(cdata), true);

  2188. 

  2189.         if (CarlaPlugin* const plugin = fEngine->getPlugin(pluginId))

  2190.         {

  2191.             std::vector<uint8_t> chunk(carla_getChunkFromBase64String(cdata));

  2192. #ifdef CARLA_PROPER_CPP11_SUPPORT

  2193.             plugin->setChunkData(chunk.data(), chunk.size());

  2194. #else

  2195.             plugin->setChunkData(&chunk.front(), chunk.size());

  2196. #endif

  2197.             _updateParamValues(plugin, pluginId, false, true);

  2198.         }

  2199. 

  2200.         delete[] cdata;

  2201.     }

  2202.     else if (std::strcmp(msg, "prepare_for_save") == 0)

  2203.     {

  2204.         uint32_t pluginId;

  2205. 

  2206.         CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(pluginId), true);

  2207. 

  2208.         if (CarlaPlugin* const plugin = fEngine->getPlugin(pluginId))

  2209.             plugin->prepareForSave();

  2210.     }

  2211.     else if (std::strcmp(msg, "reset_parameters") == 0)

  2212.     {

  2213.         uint32_t pluginId;

  2214. 

  2215.         CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(pluginId), true);

  2216. 

  2217.         if (CarlaPlugin* const plugin = fEngine->getPlugin(pluginId))

  2218.         {

  2219.             plugin->resetParameters();

  2220.             _updateParamValues(plugin, pluginId, false, true);

  2221.         }

  2222.     }

  2223.     else if (std::strcmp(msg, "randomize_parameters") == 0)

  2224.     {

  2225.         uint32_t pluginId;

  2226. 

  2227.         CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(pluginId), true);

  2228. 

  2229.         if (CarlaPlugin* const plugin = fEngine->getPlugin(pluginId))

  2230.         {

  2231.             plugin->randomizeParameters();

  2232.             _updateParamValues(plugin, pluginId, false, true);

  2233.         }

  2234.     }

  2235.     else if (std::strcmp(msg, "send_midi_note") == 0)

  2236.     {

  2237.         uint32_t pluginId, channel, note, velocity;

  2238. 

  2239.         CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(pluginId), true);

  2240.         CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(channel), true);

  2241.         CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(note), true);

  2242.         CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(velocity), true);

  2243.         CARLA_SAFE_ASSERT_RETURN(channel < MAX_MIDI_CHANNELS, true);

  2244.         CARLA_SAFE_ASSERT_RETURN(note < MAX_MIDI_VALUE, true);

  2245.         CARLA_SAFE_ASSERT_RETURN(velocity < MAX_MIDI_VALUE, true);

  2246. 

  2247.         if (CarlaPlugin* const plugin = fEngine->getPlugin(pluginId))

  2248.             plugin->sendMidiSingleNote(static_cast<uint8_t>(channel), static_cast<uint8_t>(note), static_cast<uint8_t>(velocity), true, true, false);

  2249.     }

  2250.     else if (std::strcmp(msg, "show_custom_ui") == 0)

  2251.     {

  2252.         uint32_t pluginId;

  2253.         bool yesNo;

  2254. 

  2255.         CARLA_SAFE_ASSERT_RETURN(readNextLineAsUInt(pluginId), true);

  2256.         CARLA_SAFE_ASSERT_RETURN(readNextLineAsBool(yesNo), true);

  2257. 

  2258.         if (CarlaPlugin* const plugin = fEngine->getPlugin(pluginId))

  2259.             plugin->showCustomUI(yesNo);

  2260.     }

  2261.     else

  2262.     {

  2263.         carla_stderr("CarlaEngineNativeUI::msgReceived : %s", msg);

  2264.         return false;

  2265.     }

  2266. 

  2267.     if (! ok)

  2268.     {

  2269.         const CarlaMutexLocker cml(getPipeLock());

  2270. 

  2271.         if (writeMessage("error\n", 6) && writeAndFixMessage(fEngine->getLastError()))

  2272.             flushMessages();

  2273.     }

  2274. 

  2275.     return true;

  2276. }

  2277. 

  2278. void CarlaEngineNativeUI::_updateParamValues(CarlaPlugin* const plugin, const uint32_t pluginId,

  2279.                                              const bool sendCallback, const bool sendPluginHost) const noexcept

  2280. {

  2281.     float value;

  2282. 

  2283.     for (uint32_t i=0, count=plugin->getParameterCount(); i<count; ++i) {

  2284.         value = plugin->getParameterValue(i);

  2285. 

  2286.         if (sendCallback) {

  2287.             fEngine->callback(true, true,

  2288.                               ENGINE_CALLBACK_PARAMETER_VALUE_CHANGED,

  2289.                               pluginId,

  2290.                               static_cast<int>(i),

  2291.                               0, 0,

  2292.                               value,

  2293.                               nullptr);

  2294.         }

  2295. 

  2296.         if (sendPluginHost) {

  2297.             fEngine->setParameterValueFromUI(pluginId, i, value);

  2298.         }

  2299.     }

  2300. }

  2301. 

  2302. // -----------------------------------------------------------------------

  2303. 

  2304. static const NativePluginDescriptor carlaRackDesc = {

  2305.     /* category  */ NATIVE_PLUGIN_CATEGORY_OTHER,

  2306.     /* hints     */ static_cast<NativePluginHints>(NATIVE_PLUGIN_IS_SYNTH

  2307.                                                   |NATIVE_PLUGIN_HAS_UI

  2308.                                                   |NATIVE_PLUGIN_NEEDS_UI_MAIN_THREAD

  2309.                                                   |NATIVE_PLUGIN_USES_STATE

  2310.                                                   |NATIVE_PLUGIN_USES_TIME),

  2311.     /* supports  */ static_cast<NativePluginSupports>(NATIVE_PLUGIN_SUPPORTS_EVERYTHING),

  2312.     /* audioIns  */ 2,

  2313.     /* audioOuts */ 2,

  2314.     /* midiIns   */ 1,

  2315.     /* midiOuts  */ 1,

  2316.     /* paramIns  */ kNumInParams,

  2317.     /* paramOuts */ kNumOutParams,

  2318.     /* name      */ "Carla-Rack",

  2319.     /* label     */ "carlarack",

  2320.     /* maker     */ "falkTX",

  2321.     /* copyright */ "GNU GPL v2+",

  2322.     CarlaEngineNative::_instantiateRack,

  2323.     CarlaEngineNative::_cleanup,

  2324.     CarlaEngineNative::_get_parameter_count,

  2325.     CarlaEngineNative::_get_parameter_info,

  2326.     CarlaEngineNative::_get_parameter_value,

  2327.     CarlaEngineNative::_get_midi_program_count,

  2328.     CarlaEngineNative::_get_midi_program_info,

  2329.     CarlaEngineNative::_set_parameter_value,

  2330.     CarlaEngineNative::_set_midi_program,

  2331.     /* _set_custom_data        */ nullptr,

  2332.     CarlaEngineNative::_ui_show,

  2333.     CarlaEngineNative::_ui_idle,

  2334.     CarlaEngineNative::_ui_set_parameter_value,

  2335.     /* _ui_set_midi_program    */ nullptr,

  2336.     /* _ui_set_custom_data     */ nullptr,

  2337.     CarlaEngineNative::_activate,

  2338.     CarlaEngineNative::_deactivate,

  2339.     CarlaEngineNative::_process,

  2340.     CarlaEngineNative::_get_state,

  2341.     CarlaEngineNative::_set_state,

  2342.     CarlaEngineNative::_dispatcher,

  2343.     /* _render_inline_dsplay */ nullptr

  2344. };

  2345. 

  2346. static const NativePluginDescriptor carlaRackNoMidiOutDesc = {

  2347.     /* category  */ NATIVE_PLUGIN_CATEGORY_OTHER,

  2348.     /* hints     */ static_cast<NativePluginHints>(NATIVE_PLUGIN_IS_SYNTH

  2349.                                                   |NATIVE_PLUGIN_HAS_UI

  2350.                                                   |NATIVE_PLUGIN_NEEDS_UI_MAIN_THREAD

  2351.                                                   |NATIVE_PLUGIN_USES_STATE

  2352.                                                   |NATIVE_PLUGIN_USES_TIME),

  2353.     /* supports  */ static_cast<NativePluginSupports>(NATIVE_PLUGIN_SUPPORTS_EVERYTHING),

  2354.     /* audioIns  */ 2,

  2355.     /* audioOuts */ 2,

  2356.     /* midiIns   */ 1,

  2357.     /* midiOuts  */ 0,

  2358.     /* paramIns  */ kNumInParams,

  2359.     /* paramOuts */ kNumOutParams,

  2360.     /* name      */ "Carla-Rack (no midi out)",

  2361.     /* label     */ "carlarack-nomidiout",

  2362.     /* maker     */ "falkTX",

  2363.     /* copyright */ "GNU GPL v2+",

  2364.     CarlaEngineNative::_instantiateRackNoMidiOut,

  2365.     CarlaEngineNative::_cleanup,

  2366.     CarlaEngineNative::_get_parameter_count,

  2367.     CarlaEngineNative::_get_parameter_info,

  2368.     CarlaEngineNative::_get_parameter_value,

  2369.     CarlaEngineNative::_get_midi_program_count,

  2370.     CarlaEngineNative::_get_midi_program_info,

  2371.     CarlaEngineNative::_set_parameter_value,

  2372.     CarlaEngineNative::_set_midi_program,

  2373.     /* _set_custom_data        */ nullptr,

  2374.     CarlaEngineNative::_ui_show,

  2375.     CarlaEngineNative::_ui_idle,

  2376.     /* _ui_set_parameter_value */ nullptr,

  2377.     /* _ui_set_midi_program    */ nullptr,

  2378.     /* _ui_set_custom_data     */ nullptr,

  2379.     CarlaEngineNative::_activate,

  2380.     CarlaEngineNative::_deactivate,

  2381.     CarlaEngineNative::_process,

  2382.     CarlaEngineNative::_get_state,

  2383.     CarlaEngineNative::_set_state,

  2384.     CarlaEngineNative::_dispatcher,

  2385.     /* _render_inline_dsplay */ nullptr

  2386. };

  2387. 

  2388. static const NativePluginDescriptor carlaPatchbayDesc = {

  2389.     /* category  */ NATIVE_PLUGIN_CATEGORY_OTHER,

  2390.     /* hints     */ static_cast<NativePluginHints>(NATIVE_PLUGIN_IS_SYNTH

  2391.                                                   |NATIVE_PLUGIN_HAS_UI

  2392.                                                   |NATIVE_PLUGIN_NEEDS_UI_MAIN_THREAD

  2393.                                                   |NATIVE_PLUGIN_USES_STATE

  2394.                                                   |NATIVE_PLUGIN_USES_TIME),

  2395.     /* supports  */ static_cast<NativePluginSupports>(NATIVE_PLUGIN_SUPPORTS_EVERYTHING),

  2396.     /* audioIns  */ 2,

  2397.     /* audioOuts */ 2,

  2398.     /* midiIns   */ 1,

  2399.     /* midiOuts  */ 1,

  2400.     /* paramIns  */ kNumInParams,

  2401.     /* paramOuts */ kNumOutParams,

  2402.     /* name      */ "Carla-Patchbay",

  2403.     /* label     */ "carlapatchbay",

  2404.     /* maker     */ "falkTX",

  2405.     /* copyright */ "GNU GPL v2+",

  2406.     CarlaEngineNative::_instantiatePatchbay,

  2407.     CarlaEngineNative::_cleanup,

  2408.     CarlaEngineNative::_get_parameter_count,

  2409.     CarlaEngineNative::_get_parameter_info,

  2410.     CarlaEngineNative::_get_parameter_value,

  2411.     CarlaEngineNative::_get_midi_program_count,

  2412.     CarlaEngineNative::_get_midi_program_info,

  2413.     CarlaEngineNative::_set_parameter_value,

  2414.     CarlaEngineNative::_set_midi_program,

  2415.     /* _set_custom_data        */ nullptr,

  2416.     CarlaEngineNative::_ui_show,

  2417.     CarlaEngineNative::_ui_idle,

  2418.     /* _ui_set_parameter_value */ nullptr,

  2419.     /* _ui_set_midi_program    */ nullptr,

  2420.     /* _ui_set_custom_data     */ nullptr,

  2421.     CarlaEngineNative::_activate,

  2422.     CarlaEngineNative::_deactivate,

  2423.     CarlaEngineNative::_process,

  2424.     CarlaEngineNative::_get_state,

  2425.     CarlaEngineNative::_set_state,

  2426.     CarlaEngineNative::_dispatcher,

  2427.     /* _render_inline_dsplay */ nullptr

  2428. };

  2429. 

  2430. static const NativePluginDescriptor carlaPatchbay3sDesc = {

  2431.     /* category  */ NATIVE_PLUGIN_CATEGORY_OTHER,

  2432.     /* hints     */ static_cast<NativePluginHints>(NATIVE_PLUGIN_IS_SYNTH

  2433.                                                   |NATIVE_PLUGIN_HAS_UI

  2434.                                                   |NATIVE_PLUGIN_NEEDS_UI_MAIN_THREAD

  2435.                                                   |NATIVE_PLUGIN_USES_STATE

  2436.                                                   |NATIVE_PLUGIN_USES_TIME),

  2437.     /* supports  */ static_cast<NativePluginSupports>(NATIVE_PLUGIN_SUPPORTS_EVERYTHING),

  2438.     /* audioIns  */ 3,

  2439.     /* audioOuts */ 2,

  2440.     /* midiIns   */ 1,

  2441.     /* midiOuts  */ 1,

  2442.     /* paramIns  */ kNumInParams,

  2443.     /* paramOuts */ kNumOutParams,

  2444.     /* name      */ "Carla-Patchbay (sidechain)",

  2445.     /* label     */ "carlapatchbay3s",

  2446.     /* maker     */ "falkTX",

  2447.     /* copyright */ "GNU GPL v2+",

  2448.     CarlaEngineNative::_instantiatePatchbay3s,

  2449.     CarlaEngineNative::_cleanup,

  2450.     CarlaEngineNative::_get_parameter_count,

  2451.     CarlaEngineNative::_get_parameter_info,

  2452.     CarlaEngineNative::_get_parameter_value,

  2453.     CarlaEngineNative::_get_midi_program_count,

  2454.     CarlaEngineNative::_get_midi_program_info,

  2455.     CarlaEngineNative::_set_parameter_value,

  2456.     CarlaEngineNative::_set_midi_program,

  2457.     /* _set_custom_data        */ nullptr,

  2458.     CarlaEngineNative::_ui_show,

  2459.     CarlaEngineNative::_ui_idle,

  2460.     /* _ui_set_parameter_value */ nullptr,

  2461.     /* _ui_set_midi_program    */ nullptr,

  2462.     /* _ui_set_custom_data     */ nullptr,

  2463.     CarlaEngineNative::_activate,

  2464.     CarlaEngineNative::_deactivate,

  2465.     CarlaEngineNative::_process,

  2466.     CarlaEngineNative::_get_state,

  2467.     CarlaEngineNative::_set_state,

  2468.     CarlaEngineNative::_dispatcher,

  2469.     /* _render_inline_dsplay */ nullptr

  2470. };

  2471. 

  2472. static const NativePluginDescriptor carlaPatchbay16Desc = {

  2473.     /* category  */ NATIVE_PLUGIN_CATEGORY_OTHER,

  2474.     /* hints     */ static_cast<NativePluginHints>(NATIVE_PLUGIN_IS_SYNTH

  2475.                                                   |NATIVE_PLUGIN_HAS_UI

  2476.                                                   |NATIVE_PLUGIN_NEEDS_UI_MAIN_THREAD

  2477.                                                   |NATIVE_PLUGIN_USES_STATE

  2478.                                                   |NATIVE_PLUGIN_USES_TIME),

  2479.     /* supports  */ static_cast<NativePluginSupports>(NATIVE_PLUGIN_SUPPORTS_EVERYTHING),

  2480.     /* audioIns  */ 16,

  2481.     /* audioOuts */ 16,

  2482.     /* midiIns   */ 1,

  2483.     /* midiOuts  */ 1,

  2484.     /* paramIns  */ kNumInParams,

  2485.     /* paramOuts */ kNumOutParams,

  2486.     /* name      */ "Carla-Patchbay (16chan)",

  2487.     /* label     */ "carlapatchbay16",

  2488.     /* maker     */ "falkTX",

  2489.     /* copyright */ "GNU GPL v2+",

  2490.     CarlaEngineNative::_instantiatePatchbay16,

  2491.     CarlaEngineNative::_cleanup,

  2492.     CarlaEngineNative::_get_parameter_count,

  2493.     CarlaEngineNative::_get_parameter_info,

  2494.     CarlaEngineNative::_get_parameter_value,

  2495.     CarlaEngineNative::_get_midi_program_count,

  2496.     CarlaEngineNative::_get_midi_program_info,

  2497.     CarlaEngineNative::_set_parameter_value,

  2498.     CarlaEngineNative::_set_midi_program,

  2499.     /* _set_custom_data        */ nullptr,

  2500.     CarlaEngineNative::_ui_show,

  2501.     CarlaEngineNative::_ui_idle,

  2502.     /* _ui_set_parameter_value */ nullptr,

  2503.     /* _ui_set_midi_program    */ nullptr,

  2504.     /* _ui_set_custom_data     */ nullptr,

  2505.     CarlaEngineNative::_activate,

  2506.     CarlaEngineNative::_deactivate,

  2507.     CarlaEngineNative::_process,

  2508.     CarlaEngineNative::_get_state,

  2509.     CarlaEngineNative::_set_state,

  2510.     CarlaEngineNative::_dispatcher,

  2511.     /* _render_inline_dsplay */ nullptr

  2512. };

  2513. 

  2514. static const NativePluginDescriptor carlaPatchbay32Desc = {

  2515.     /* category  */ NATIVE_PLUGIN_CATEGORY_OTHER,

  2516.     /* hints     */ static_cast<NativePluginHints>(NATIVE_PLUGIN_IS_SYNTH

  2517.                                                   |NATIVE_PLUGIN_HAS_UI

  2518.                                                   |NATIVE_PLUGIN_NEEDS_UI_MAIN_THREAD

  2519.                                                   |NATIVE_PLUGIN_USES_STATE

  2520.                                                   |NATIVE_PLUGIN_USES_TIME),

  2521.     /* supports  */ static_cast<NativePluginSupports>(NATIVE_PLUGIN_SUPPORTS_EVERYTHING),

  2522.     /* audioIns  */ 32,

  2523.     /* audioOuts */ 32,

  2524.     /* midiIns   */ 1,

  2525.     /* midiOuts  */ 1,

  2526.     /* paramIns  */ kNumInParams,

  2527.     /* paramOuts */ kNumOutParams,

  2528.     /* name      */ "Carla-Patchbay (32chan)",

  2529.     /* label     */ "carlapatchbay32",

  2530.     /* maker     */ "falkTX",

  2531.     /* copyright */ "GNU GPL v2+",

  2532.     CarlaEngineNative::_instantiatePatchbay32,

  2533.     CarlaEngineNative::_cleanup,

  2534.     CarlaEngineNative::_get_parameter_count,

  2535.     CarlaEngineNative::_get_parameter_info,

  2536.     CarlaEngineNative::_get_parameter_value,

  2537.     CarlaEngineNative::_get_midi_program_count,

  2538.     CarlaEngineNative::_get_midi_program_info,

  2539.     CarlaEngineNative::_set_parameter_value,

  2540.     CarlaEngineNative::_set_midi_program,

  2541.     /* _set_custom_data        */ nullptr,

  2542.     CarlaEngineNative::_ui_show,

  2543.     CarlaEngineNative::_ui_idle,

  2544.     /* _ui_set_parameter_value */ nullptr,

  2545.     /* _ui_set_midi_program    */ nullptr,

  2546.     /* _ui_set_custom_data     */ nullptr,

  2547.     CarlaEngineNative::_activate,

  2548.     CarlaEngineNative::_deactivate,

  2549.     CarlaEngineNative::_process,

  2550.     CarlaEngineNative::_get_state,

  2551.     CarlaEngineNative::_set_state,

  2552.     CarlaEngineNative::_dispatcher,

  2553.     /* _render_inline_dsplay */ nullptr

  2554. };

  2555. 

  2556. CARLA_BACKEND_END_NAMESPACE

  2557. 

  2558. // -----------------------------------------------------------------------

  2559. 

  2560. CARLA_EXPORT

  2561. void carla_register_native_plugin_carla();

  2562. 

  2563. void carla_register_native_plugin_carla()

  2564. {

  2565.     CARLA_BACKEND_USE_NAMESPACE;

  2566.     carla_register_native_plugin(&carlaRackDesc);

  2567.     carla_register_native_plugin(&carlaRackNoMidiOutDesc);

  2568.     carla_register_native_plugin(&carlaPatchbayDesc);

  2569.     carla_register_native_plugin(&carlaPatchbay3sDesc);

  2570.     carla_register_native_plugin(&carlaPatchbay16Desc);

  2571.     carla_register_native_plugin(&carlaPatchbay32Desc);

  2572. }

  2573. 

  2574. // -----------------------------------------------------------------------

  2575. 

  2576. const NativePluginDescriptor* carla_get_native_rack_plugin()

  2577. {

  2578.     CARLA_BACKEND_USE_NAMESPACE;

  2579.     return &carlaRackDesc;

  2580. }

  2581. 

  2582. const NativePluginDescriptor* carla_get_native_patchbay_plugin()

  2583. {

  2584.     CARLA_BACKEND_USE_NAMESPACE;

  2585.     return &carlaPatchbayDesc;

  2586. }

  2587. 

  2588. const NativePluginDescriptor* carla_get_native_patchbay16_plugin()

  2589. {

  2590.     CARLA_BACKEND_USE_NAMESPACE;

  2591.     return &carlaPatchbay16Desc;

  2592. }

  2593. 

  2594. const NativePluginDescriptor* carla_get_native_patchbay32_plugin()

  2595. {

  2596.     CARLA_BACKEND_USE_NAMESPACE;

  2597.     return &carlaPatchbay32Desc;

  2598. }

  2599. 

  2600. // -----------------------------------------------------------------------

  2601. // Extra stuff for linking purposes

  2602. 

  2603. #ifdef CARLA_PLUGIN_EXPORT

  2604. 

  2605. CARLA_BACKEND_START_NAMESPACE

  2606. 

  2607. CarlaEngine* CarlaEngine::newJack() { return nullptr; }

  2608. 

  2609. # ifdef USING_JUCE

  2610. CarlaEngine*       CarlaEngine::newJuce(const AudioApi)           { return nullptr; }

  2611. uint               CarlaEngine::getJuceApiCount()                 { return 0;       }

  2612. const char*        CarlaEngine::getJuceApiName(const uint)        { return nullptr; }

  2613. const char* const* CarlaEngine::getJuceApiDeviceNames(const uint) { return nullptr; }

  2614. const EngineDriverDeviceInfo* CarlaEngine::getJuceDeviceInfo(const uint, const char* const) { return nullptr; }

  2615. # else

  2616. CarlaEngine*       CarlaEngine::newRtAudio(const AudioApi)           { return nullptr; }

  2617. uint               CarlaEngine::getRtAudioApiCount()                 { return 0;       }

  2618. const char*        CarlaEngine::getRtAudioApiName(const uint)        { return nullptr; }

  2619. const char* const* CarlaEngine::getRtAudioApiDeviceNames(const uint) { return nullptr; }

  2620. const EngineDriverDeviceInfo* CarlaEngine::getRtAudioDeviceInfo(const uint, const char* const) { return nullptr; }

  2621. # endif

  2622. 

  2623. CARLA_BACKEND_END_NAMESPACE

  2624. 

  2625. #define CARLA_PLUGIN_UI_CLASS_PREFIX EngineNative

  2626. #include "CarlaHostCommon.cpp"

  2627. #include "CarlaPluginUI.cpp"

  2628. #include "CarlaDssiUtils.cpp"

  2629. #include "CarlaMacUtils.cpp"

  2630. #include "CarlaPatchbayUtils.cpp"

  2631. #include "CarlaPipeUtils.cpp"

  2632. #include "CarlaStateUtils.cpp"

  2633. 

  2634. #endif

  2635. 

  2636. // -----------------------------------------------------------------------