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Carla/source/utils/CarlaBridgeUtils.hpp

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  1. /*

  2.  * Carla Bridge utils

  3.  * Copyright (C) 2013-2018 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. #ifndef CARLA_BRIDGE_UTILS_HPP_INCLUDED

  19. #define CARLA_BRIDGE_UTILS_HPP_INCLUDED

  20. 

  21. #include "CarlaBridgeDefines.hpp"

  22. #include "CarlaMutex.hpp"

  23. #include "CarlaString.hpp"

  24. 

  25. // -------------------------------------------------------------------------------------------------------------------

  26. 

  27. static inline

  28. const char* PluginBridgeRtClientOpcode2str(const PluginBridgeRtClientOpcode opcode) noexcept

  29. {

  30.     switch (opcode)

  31.     {

  32.     case kPluginBridgeRtClientNull:

  33.         return "kPluginBridgeRtClientNull";

  34.     case kPluginBridgeRtClientSetAudioPool:

  35.         return "kPluginBridgeRtClientSetAudioPool";

  36.     case kPluginBridgeRtClientSetBufferSize:

  37.         return "kPluginBridgeRtClientSetBufferSize";

  38.     case kPluginBridgeRtClientSetSampleRate:

  39.         return "kPluginBridgeRtClientSetSampleRate";

  40.     case kPluginBridgeRtClientSetOnline:

  41.         return "kPluginBridgeRtClientSetOnline";

  42.     case kPluginBridgeRtClientControlEventParameter:

  43.         return "kPluginBridgeRtClientControlEventParameter";

  44.     case kPluginBridgeRtClientControlEventMidiBank:

  45.         return "kPluginBridgeRtClientControlEventMidiBank";

  46.     case kPluginBridgeRtClientControlEventMidiProgram:

  47.         return "kPluginBridgeRtClientControlEventMidiProgram";

  48.     case kPluginBridgeRtClientControlEventAllSoundOff:

  49.         return "kPluginBridgeRtClientControlEventAllSoundOff";

  50.     case kPluginBridgeRtClientControlEventAllNotesOff:

  51.         return "kPluginBridgeRtClientControlEventAllNotesOff";

  52.     case kPluginBridgeRtClientMidiEvent:

  53.         return "kPluginBridgeRtClientMidiEvent";

  54.     case kPluginBridgeRtClientProcess:

  55.         return "kPluginBridgeRtClientProcess";

  56.     case kPluginBridgeRtClientQuit:

  57.         return "kPluginBridgeRtClientQuit";

  58.     }

  59. 

  60.     carla_stderr("CarlaBackend::PluginBridgeRtClientOpcode2str(%i) - invalid opcode", opcode);

  61.     return nullptr;

  62. }

  63. 

  64. static inline

  65. const char* PluginBridgeNonRtClientOpcode2str(const PluginBridgeNonRtClientOpcode opcode) noexcept

  66. {

  67.     switch (opcode)

  68.     {

  69.     case kPluginBridgeNonRtClientNull:

  70.         return "kPluginBridgeNonRtClientNull";

  71.     case kPluginBridgeNonRtClientVersion:

  72.         return "kPluginBridgeNonRtClientVersion";

  73.     case kPluginBridgeNonRtClientPing:

  74.         return "kPluginBridgeNonRtClientPing";

  75.     case kPluginBridgeNonRtClientPingOnOff:

  76.         return "kPluginBridgeNonRtClientPingOnOff";

  77.     case kPluginBridgeNonRtClientActivate:

  78.         return "kPluginBridgeNonRtClientActivate";

  79.     case kPluginBridgeNonRtClientDeactivate:

  80.         return "kPluginBridgeNonRtClientDeactivate";

  81.     case kPluginBridgeNonRtClientInitialSetup:

  82.         return "kPluginBridgeNonRtClientInitialSetup";

  83.     case kPluginBridgeNonRtClientSetParameterValue:

  84.         return "kPluginBridgeNonRtClientSetParameterValue";

  85.     case kPluginBridgeNonRtClientSetParameterMidiChannel:

  86.         return "kPluginBridgeNonRtClientSetParameterMidiChannel";

  87.     case kPluginBridgeNonRtClientSetParameterMidiCC:

  88.         return "kPluginBridgeNonRtClientSetParameterMidiCC";

  89.     case kPluginBridgeNonRtClientSetProgram:

  90.         return "kPluginBridgeNonRtClientSetProgram";

  91.     case kPluginBridgeNonRtClientSetMidiProgram:

  92.         return "kPluginBridgeNonRtClientSetMidiProgram";

  93.     case kPluginBridgeNonRtClientSetCustomData:

  94.         return "kPluginBridgeNonRtClientSetCustomData";

  95.     case kPluginBridgeNonRtClientSetChunkDataFile:

  96.         return "kPluginBridgeNonRtClientSetChunkDataFile";

  97.     case kPluginBridgeNonRtClientSetCtrlChannel:

  98.         return "kPluginBridgeNonRtClientSetCtrlChannel";

  99.     case kPluginBridgeNonRtClientSetOption:

  100.         return "kPluginBridgeNonRtClientSetOption";

  101.     case kPluginBridgeNonRtClientGetParameterText:

  102.         return "kPluginBridgeNonRtClientGetParameterText";

  103.     case kPluginBridgeNonRtClientPrepareForSave:

  104.         return "kPluginBridgeNonRtClientPrepareForSave";

  105.     case kPluginBridgeNonRtClientRestoreLV2State:

  106.         return "kPluginBridgeNonRtClientRestoreLV2State";

  107.     case kPluginBridgeNonRtClientShowUI:

  108.         return "kPluginBridgeNonRtClientShowUI";

  109.     case kPluginBridgeNonRtClientHideUI:

  110.         return "kPluginBridgeNonRtClientHideUI";

  111.     case kPluginBridgeNonRtClientUiParameterChange:

  112.         return "kPluginBridgeNonRtClientUiParameterChange";

  113.     case kPluginBridgeNonRtClientUiProgramChange:

  114.         return "kPluginBridgeNonRtClientUiProgramChange";

  115.     case kPluginBridgeNonRtClientUiMidiProgramChange:

  116.         return "kPluginBridgeNonRtClientUiMidiProgramChange";

  117.     case kPluginBridgeNonRtClientUiNoteOn:

  118.         return "kPluginBridgeNonRtClientUiNoteOn";

  119.     case kPluginBridgeNonRtClientUiNoteOff:

  120.         return "kPluginBridgeNonRtClientUiNoteOff";

  121.     case kPluginBridgeNonRtClientQuit:

  122.         return "kPluginBridgeNonRtClientQuit";

  123.     }

  124. 

  125.     carla_stderr("CarlaBackend::PluginBridgeNonRtClientOpcode2str(%i) - invalid opcode", opcode);

  126.     return nullptr;

  127. }

  128. 

  129. static inline

  130. const char* PluginBridgeNonRtServerOpcode2str(const PluginBridgeNonRtServerOpcode opcode) noexcept

  131. {

  132.     switch (opcode)

  133.     {

  134.     case kPluginBridgeNonRtServerNull:

  135.         return "kPluginBridgeNonRtServerNull";

  136.     case kPluginBridgeNonRtServerPong:

  137.         return "kPluginBridgeNonRtServerPong";

  138.     case kPluginBridgeNonRtServerPluginInfo1:

  139.         return "kPluginBridgeNonRtServerPluginInfo1";

  140.     case kPluginBridgeNonRtServerPluginInfo2:

  141.         return "kPluginBridgeNonRtServerPluginInfo2";

  142.     case kPluginBridgeNonRtServerAudioCount:

  143.         return "kPluginBridgeNonRtServerAudioCount";

  144.     case kPluginBridgeNonRtServerMidiCount:

  145.         return "kPluginBridgeNonRtServerMidiCount";

  146.     case kPluginBridgeNonRtServerCvCount:

  147.         return "kPluginBridgeNonRtServerCvCount";

  148.     case kPluginBridgeNonRtServerParameterCount:

  149.         return "kPluginBridgeNonRtServerParameterCount";

  150.     case kPluginBridgeNonRtServerProgramCount:

  151.         return "kPluginBridgeNonRtServerProgramCount";

  152.     case kPluginBridgeNonRtServerMidiProgramCount:

  153.         return "kPluginBridgeNonRtServerMidiProgramCount";

  154.     case kPluginBridgeNonRtServerPortName:

  155.         return "kPluginBridgeNonRtServerPortName";

  156.     case kPluginBridgeNonRtServerParameterData1:

  157.         return "kPluginBridgeNonRtServerParameterData1";

  158.     case kPluginBridgeNonRtServerParameterData2:

  159.         return "kPluginBridgeNonRtServerParameterData2";

  160.     case kPluginBridgeNonRtServerParameterRanges:

  161.         return "kPluginBridgeNonRtServerParameterRanges";

  162.     case kPluginBridgeNonRtServerParameterValue:

  163.         return "kPluginBridgeNonRtServerParameterValue";

  164.     case kPluginBridgeNonRtServerParameterValue2:

  165.         return "kPluginBridgeNonRtServerParameterValue2";

  166.     case kPluginBridgeNonRtServerDefaultValue:

  167.         return "kPluginBridgeNonRtServerDefaultValue";

  168.     case kPluginBridgeNonRtServerCurrentProgram:

  169.         return "kPluginBridgeNonRtServerCurrentProgram";

  170.     case kPluginBridgeNonRtServerCurrentMidiProgram:

  171.         return "kPluginBridgeNonRtServerCurrentMidiProgram";

  172.     case kPluginBridgeNonRtServerProgramName:

  173.         return "kPluginBridgeNonRtServerProgramName";

  174.     case kPluginBridgeNonRtServerMidiProgramData:

  175.         return "kPluginBridgeNonRtServerMidiProgramData";

  176.     case kPluginBridgeNonRtServerSetCustomData:

  177.         return "kPluginBridgeNonRtServerSetCustomData";

  178.     case kPluginBridgeNonRtServerSetChunkDataFile:

  179.         return "kPluginBridgeNonRtServerSetChunkDataFile";

  180.     case kPluginBridgeNonRtServerSetLatency:

  181.         return "kPluginBridgeNonRtServerSetLatency";

  182.     case kPluginBridgeNonRtServerSetParameterText:

  183.         return "kPluginBridgeNonRtServerSetParameterText";

  184.     case kPluginBridgeNonRtServerReady:

  185.         return "kPluginBridgeNonRtServerReady";

  186.     case kPluginBridgeNonRtServerSaved:

  187.         return "kPluginBridgeNonRtServerSaved";

  188.     case kPluginBridgeNonRtServerUiClosed:

  189.         return "kPluginBridgeNonRtServerUiClosed";

  190.     case kPluginBridgeNonRtServerError:

  191.         return "kPluginBridgeNonRtServerError";

  192.     }

  193. 

  194.     carla_stderr("CarlaBackend::PluginBridgeNonRtServerOpcode2str%i) - invalid opcode", opcode);

  195.     return nullptr;

  196. }

  197. 

  198. // -------------------------------------------------------------------------------------------------------------------

  199. 

  200. struct BridgeAudioPool {

  201.     float* data;

  202.     std::size_t dataSize;

  203.     CarlaString filename;

  204.     char shm[64];

  205.     bool isServer;

  206. 

  207.     BridgeAudioPool() noexcept;

  208.     ~BridgeAudioPool() noexcept;

  209. 

  210.     bool initializeServer() noexcept;

  211.     bool attachClient(const char* const fname) noexcept;

  212.     void clear() noexcept;

  213. 

  214.     void resize(const uint32_t bufferSize, const uint32_t audioPortCount, const uint32_t cvPortCount) noexcept;

  215. 

  216.     const char* getFilenameSuffix() const noexcept;

  217. 

  218.     CARLA_DECLARE_NON_COPY_STRUCT(BridgeAudioPool)

  219. };

  220. 

  221. // -------------------------------------------------------------------------------------------------------------------

  222. 

  223. struct BridgeRtClientControl : public CarlaRingBufferControl<SmallStackBuffer> {

  224.     BridgeRtClientData* data;

  225.     CarlaString filename;

  226.     bool needsSemDestroy; // client only

  227.     char shm[64];

  228.     bool isServer;

  229. 

  230.     BridgeRtClientControl() noexcept;

  231.     ~BridgeRtClientControl() noexcept override;

  232. 

  233.     bool initializeServer() noexcept;

  234.     bool attachClient(const char* const basename) noexcept;

  235.     void clear() noexcept;

  236. 

  237.     bool mapData() noexcept;

  238.     void unmapData() noexcept;

  239. 

  240.     // non-bridge, server

  241.     bool waitForClient(const uint msecs) noexcept;

  242.     bool writeOpcode(const PluginBridgeRtClientOpcode opcode) noexcept;

  243. 

  244.     // bridge, client

  245.     PluginBridgeRtClientOpcode readOpcode() noexcept;

  246. 

  247.     // helper class that automatically posts semaphore on destructor

  248.     struct WaitHelper {

  249.         BridgeRtClientData* const data;

  250.         const bool ok;

  251. 

  252.         WaitHelper(BridgeRtClientControl& c) noexcept;

  253.         ~WaitHelper() noexcept;

  254. 

  255.         CARLA_DECLARE_NON_COPY_STRUCT(WaitHelper)

  256.     };

  257. 

  258.     CARLA_DECLARE_NON_COPY_STRUCT(BridgeRtClientControl)

  259. };

  260. 

  261. // -------------------------------------------------------------------------------------------------------------------

  262. 

  263. struct BridgeNonRtClientControl : public CarlaRingBufferControl<BigStackBuffer> {

  264.     BridgeNonRtClientData* data;

  265.     CarlaString filename;

  266.     CarlaMutex mutex;

  267.     char shm[64];

  268.     bool isServer;

  269. 

  270.     BridgeNonRtClientControl() noexcept;

  271.     ~BridgeNonRtClientControl() noexcept override;

  272. 

  273.     bool initializeServer() noexcept;

  274.     bool attachClient(const char* const basename) noexcept;

  275.     void clear() noexcept;

  276. 

  277.     bool mapData() noexcept;

  278.     void unmapData() noexcept;

  279. 

  280.     // non-bridge, server

  281.     void waitIfDataIsReachingLimit() noexcept;

  282.     bool writeOpcode(const PluginBridgeNonRtClientOpcode opcode) noexcept;

  283. 

  284.     // bridge, client

  285.     PluginBridgeNonRtClientOpcode readOpcode() noexcept;

  286. 

  287.     CARLA_DECLARE_NON_COPY_STRUCT(BridgeNonRtClientControl)

  288. };

  289. 

  290. // -------------------------------------------------------------------------------------------------------------------

  291. 

  292. struct BridgeNonRtServerControl : public CarlaRingBufferControl<HugeStackBuffer> {

  293.     BridgeNonRtServerData* data;

  294.     CarlaString filename;

  295.     CarlaMutex mutex;

  296.     char shm[64];

  297.     bool isServer;

  298. 

  299.     BridgeNonRtServerControl() noexcept;

  300.     ~BridgeNonRtServerControl() noexcept override;

  301. 

  302.     bool initializeServer() noexcept;

  303.     bool attachClient(const char* const basename) noexcept;

  304.     void clear() noexcept;

  305. 

  306.     bool mapData() noexcept;

  307.     void unmapData() noexcept;

  308. 

  309.     // non-bridge, server

  310.     PluginBridgeNonRtServerOpcode readOpcode() noexcept;

  311. 

  312.     // bridge, client

  313.     void waitIfDataIsReachingLimit() noexcept;

  314.     bool writeOpcode(const PluginBridgeNonRtServerOpcode opcode) noexcept;

  315. 

  316.     CARLA_DECLARE_NON_COPY_STRUCT(BridgeNonRtServerControl)

  317. };

  318. 

  319. // -------------------------------------------------------------------------------------------------------------------

  320. 

  321. #endif // CARLA_BRIDGE_UTILS_HPP_INCLUDED