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Carla
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Audio plugin host https://kx.studio/carla
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Carla/source/carla_host.py

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  1. #!/usr/bin/env python3

  2. # -*- coding: utf-8 -*-

  3. 

  4. # Carla host code

  5. # Copyright (C) 2011-2013 Filipe Coelho <falktx@falktx.com>

  6. #

  7. # This program is free software; you can redistribute it and/or

  8. # modify it under the terms of the GNU General Public License as

  9. # published by the Free Software Foundation; either version 2 of

  10. # the License, or any later version.

  11. #

  12. # This program is distributed in the hope that it will be useful,

  13. # but WITHOUT ANY WARRANTY; without even the implied warranty of

  14. # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the

  15. # GNU General Public License for more details.

  16. #

  17. # For a full copy of the GNU General Public License see the doc/GPL.txt file.

  18. 

  19. # ------------------------------------------------------------------------------------------------------------

  20. # Imports (Global)

  21. 

  22. from PyQt4.QtCore import qCritical, QModelIndex, QTimer

  23. from PyQt4.QtGui import QApplication, QFileSystemModel, QMainWindow, QPalette

  24. 

  25. # ------------------------------------------------------------------------------------------------------------

  26. # Imports (Custom)

  27. 

  28. import ui_carla_host

  29. 

  30. from carla_database import *

  31. from carla_settings import *

  32. from carla_style import *

  33. from carla_widgets import *

  34. 

  35. # ------------------------------------------------------------------------------------------------------------

  36. # PatchCanvas defines

  37. 

  38. CANVAS_ANTIALIASING_SMALL = 1

  39. CANVAS_EYECANDY_SMALL     = 1

  40. 

  41. # ------------------------------------------------------------------------------------------------------------

  42. # Session Management support

  43. 

  44. LADISH_APP_NAME = os.getenv("LADISH_APP_NAME")

  45. NSM_URL         = os.getenv("NSM_URL")

  46. 

  47. # ------------------------------------------------------------------------------------------------------------

  48. # Dummy widget

  49. 

  50. class CarlaDummyW(object):

  51.     def __init__(self, parent):

  52.         object.__init__(self)

  53. 

  54.     # -----------------------------------------------------------------

  55. 

  56.     def getPluginCount(self):

  57.         return 0

  58. 

  59.     # -----------------------------------------------------------------

  60. 

  61.     def addPlugin(self, pluginId, isProjectLoading):

  62.         pass

  63. 

  64.     def removePlugin(self, pluginId):

  65.         pass

  66. 

  67.     def renamePlugin(self, pluginId, newName):

  68.         pass

  69. 

  70.     def disablePlugin(self, pluginId, errorMsg):

  71.         pass

  72. 

  73.     def removeAllPlugins(self):

  74.         pass

  75. 

  76.     # -----------------------------------------------------------------

  77. 

  78.     def engineStarted(self):

  79.         pass

  80. 

  81.     def engineStopped(self):

  82.         pass

  83. 

  84.     def engineChanged(self):

  85.         pass

  86. 

  87.     # -----------------------------------------------------------------

  88. 

  89.     def idleFast(self):

  90.         pass

  91. 

  92.     def idleSlow(self):

  93.         pass

  94. 

  95.     # -----------------------------------------------------------------

  96. 

  97.     def projectLoaded(self):

  98.         pass

  99. 

  100.     def saveSettings(self, settings):

  101.         pass

  102. 

  103.     def showEditDialog(self, pluginId):

  104.         pass

  105. 

  106. # ------------------------------------------------------------------------------------------------------------

  107. # Host Window

  108. 

  109. class HostWindow(QMainWindow):

  110.     # signals

  111.     DebugCallback = pyqtSignal(int, int, int, float, str)

  112.     PluginAddedCallback = pyqtSignal(int, str)

  113.     PluginRemovedCallback = pyqtSignal(int)

  114.     PluginRenamedCallback = pyqtSignal(int, str)

  115.     PluginUnavailableCallback = pyqtSignal(int, str)

  116.     ParameterValueChangedCallback = pyqtSignal(int, int, float)

  117.     ParameterDefaultChangedCallback = pyqtSignal(int, int, float)

  118.     ParameterMidiCcChangedCallback = pyqtSignal(int, int, int)

  119.     ParameterMidiChannelChangedCallback = pyqtSignal(int, int, int)

  120.     ProgramChangedCallback = pyqtSignal(int, int)

  121.     MidiProgramChangedCallback = pyqtSignal(int, int)

  122.     UiStateChangedCallback = pyqtSignal(int, int)

  123.     NoteOnCallback = pyqtSignal(int, int, int, int)

  124.     NoteOffCallback = pyqtSignal(int, int, int)

  125.     UpdateCallback = pyqtSignal(int)

  126.     ReloadInfoCallback = pyqtSignal(int)

  127.     ReloadParametersCallback = pyqtSignal(int)

  128.     ReloadProgramsCallback = pyqtSignal(int)

  129.     ReloadAllCallback = pyqtSignal(int)

  130.     PatchbayClientAddedCallback = pyqtSignal(int, int, int, str)

  131.     PatchbayClientRemovedCallback = pyqtSignal(int)

  132.     PatchbayClientRenamedCallback = pyqtSignal(int, str)

  133.     PatchbayClientDataChangedCallback = pyqtSignal(int, int, int)

  134.     PatchbayPortAddedCallback = pyqtSignal(int, int, int, str)

  135.     PatchbayPortRemovedCallback = pyqtSignal(int, int)

  136.     PatchbayPortRenamedCallback = pyqtSignal(int, int, str)

  137.     PatchbayConnectionAddedCallback = pyqtSignal(int, int, int)

  138.     PatchbayConnectionRemovedCallback = pyqtSignal(int, int, int)

  139.     EngineStartedCallback = pyqtSignal(int, int, str)

  140.     EngineStoppedCallback = pyqtSignal()

  141.     ProcessModeChangedCallback = pyqtSignal(int)

  142.     TransportModeChangedCallback = pyqtSignal(int)

  143.     BufferSizeChangedCallback = pyqtSignal(int)

  144.     SampleRateChangedCallback = pyqtSignal(float)

  145.     InfoCallback = pyqtSignal(str)

  146.     ErrorCallback = pyqtSignal(str)

  147.     QuitCallback = pyqtSignal()

  148.     SIGTERM = pyqtSignal()

  149.     SIGUSR1 = pyqtSignal()

  150. 

  151.     def __init__(self, parent):

  152.         QMainWindow.__init__(self, parent)

  153.         self.ui = ui_carla_host.Ui_CarlaHostW()

  154.         self.ui.setupUi(self)

  155. 

  156.         if False:

  157.             Carla.gui = self

  158.             self.fContainer = CarlaDummyW(self)

  159. 

  160.         # -------------------------------------------------------------

  161.         # Set callback, TODO put somewhere else

  162. 

  163.         if Carla.host is not None:

  164.             Carla.host.set_engine_callback(engineCallback)

  165. 

  166.         # -------------------------------------------------------------

  167.         # Internal stuff

  168. 

  169.         self.fIdleTimerFast = 0

  170.         self.fIdleTimerSlow = 0

  171. 

  172.         self.fIsProjectLoading = False

  173.         self.fProjectFilename  = ""

  174. 

  175.         self.fLadspaRdfNeedsUpdate = True

  176.         self.fLadspaRdfList = []

  177. 

  178.         self.fLastTransportFrame = 0

  179.         self.fLastTransportState = False

  180.         self.fTransportText = ""

  181. 

  182.         # when true, call engineChanged() asap

  183.         self.fEngineChanged = False

  184. 

  185.         # first attempt of auto-start engine doesn't show an error

  186.         self.fFirstEngineInit = True

  187. 

  188.         self.fSavedSettings = {}

  189. 

  190.         if LADISH_APP_NAME:

  191.             self.fClientName         = LADISH_APP_NAME

  192.             self.fSessionManagerName = "LADISH"

  193.         elif NSM_URL:

  194.             self.fClientName         = "Carla.tmp"

  195.             self.fSessionManagerName = "Non Session Manager"

  196.         else:

  197.             self.fClientName         = "Carla"

  198.             self.fSessionManagerName = ""

  199. 

  200.         # -------------------------------------------------------------

  201.         # Load Settings

  202. 

  203.         self.loadSettings(True)

  204. 

  205.         # -------------------------------------------------------------

  206.         # Set up GUI (engine stopped)

  207. 

  208.         if Carla.isPlugin:

  209.             self.ui.act_file_new.setEnabled(False)

  210.             self.ui.act_file_open.setEnabled(False)

  211.             self.ui.act_engine_start.setEnabled(False)

  212.             self.ui.menu_Engine.setEnabled(False)

  213.         else:

  214.             self.ui.act_engine_start.setEnabled(True)

  215. 

  216.         self.ui.act_file_save.setEnabled(False)

  217.         self.ui.act_file_save_as.setEnabled(False)

  218.         self.ui.act_engine_stop.setEnabled(False)

  219.         self.ui.act_plugin_remove_all.setEnabled(False)

  220. 

  221.         self.ui.menu_PluginMacros.setEnabled(False)

  222.         self.ui.menu_Canvas.setEnabled(False)

  223. 

  224.         self.setTransportMenuEnabled(False)

  225. 

  226.         # -------------------------------------------------------------

  227.         # Set up GUI (right panel)

  228. 

  229.         self.fDirModel = QFileSystemModel(self)

  230.         self.fDirModel.setRootPath(HOME)

  231. 

  232.         if Carla.host is not None:

  233.             self.fDirModel.setNameFilters(Carla.host.get_supported_file_extensions().split(";"))

  234. 

  235.         self.ui.fileTreeView.setModel(self.fDirModel)

  236.         self.ui.fileTreeView.setRootIndex(self.fDirModel.index(HOME))

  237.         self.ui.fileTreeView.setColumnHidden(1, True)

  238.         self.ui.fileTreeView.setColumnHidden(2, True)

  239.         self.ui.fileTreeView.setColumnHidden(3, True)

  240.         self.ui.fileTreeView.setHeaderHidden(True)

  241. 

  242.         self.setProperWindowTitle()

  243. 

  244.         # -------------------------------------------------------------

  245.         # Connect actions to functions

  246. 

  247.         self.ui.act_file_new.triggered.connect(self.slot_fileNew)

  248.         self.ui.act_file_open.triggered.connect(self.slot_fileOpen)

  249.         self.ui.act_file_save.triggered.connect(self.slot_fileSave)

  250.         self.ui.act_file_save_as.triggered.connect(self.slot_fileSaveAs)

  251. 

  252.         self.ui.act_engine_start.triggered.connect(self.slot_engineStart)

  253.         self.ui.act_engine_stop.triggered.connect(self.slot_engineStop)

  254. 

  255.         self.ui.act_plugin_add.triggered.connect(self.slot_pluginAdd)

  256.         self.ui.act_plugin_add2.triggered.connect(self.slot_pluginAdd)

  257.         self.ui.act_plugin_remove_all.triggered.connect(self.slot_pluginRemoveAll)

  258. 

  259.         self.ui.act_transport_play.triggered.connect(self.slot_transportPlayPause)

  260.         self.ui.act_transport_stop.triggered.connect(self.slot_transportStop)

  261.         self.ui.act_transport_backwards.triggered.connect(self.slot_transportBackwards)

  262.         self.ui.act_transport_forwards.triggered.connect(self.slot_transportForwards)

  263. 

  264.         self.ui.act_help_about.triggered.connect(self.slot_aboutCarla)

  265.         self.ui.act_help_about_qt.triggered.connect(self.slot_aboutQt)

  266. 

  267.         self.ui.cb_disk.currentIndexChanged.connect(self.slot_diskFolderChanged)

  268.         self.ui.b_disk_add.clicked.connect(self.slot_diskFolderAdd)

  269.         self.ui.b_disk_remove.clicked.connect(self.slot_diskFolderRemove)

  270.         self.ui.fileTreeView.doubleClicked.connect(self.slot_fileTreeDoubleClicked)

  271. 

  272.         self.DebugCallback.connect(self.slot_handleDebugCallback)

  273. 

  274.         self.PluginAddedCallback.connect(self.slot_handlePluginAddedCallback)

  275.         self.PluginRemovedCallback.connect(self.slot_handlePluginRemovedCallback)

  276.         self.PluginRenamedCallback.connect(self.slot_handlePluginRenamedCallback)

  277.         self.PluginUnavailableCallback.connect(self.slot_handlePluginUnavailableCallback)

  278. 

  279.         # parameter (rack, patchbay)

  280.         # program, midi-program, ui-state (rack, patchbay)

  281.         # note on, off (rack, patchbay)

  282.         # update, reload (rack, patchbay)

  283.         # patchbay

  284. 

  285.         self.EngineStartedCallback.connect(self.slot_handleEngineStartedCallback)

  286.         self.EngineStoppedCallback.connect(self.slot_handleEngineStoppedCallback)

  287. 

  288.         self.ProcessModeChangedCallback.connect(self.slot_handleProcessModeChangedCallback)

  289.         self.TransportModeChangedCallback.connect(self.slot_handleTransportModeChangedCallback)

  290. 

  291.         self.BufferSizeChangedCallback.connect(self.slot_handleBufferSizeChangedCallback)

  292.         self.SampleRateChangedCallback.connect(self.slot_handleSampleRateChangedCallback)

  293. 

  294.         self.InfoCallback.connect(self.slot_handleInfoCallback)

  295.         self.ErrorCallback.connect(self.slot_handleErrorCallback)

  296.         self.QuitCallback.connect(self.slot_handleQuitCallback)

  297. 

  298.         self.SIGUSR1.connect(self.slot_handleSIGUSR1)

  299.         self.SIGTERM.connect(self.slot_handleSIGTERM)

  300. 

  301.         # -------------------------------------------------------------

  302.         # Final setup

  303. 

  304.         QTimer.singleShot(0, self.slot_engineStart)

  305.         #QTimer.singleShot(2000, self.slot_test)

  306. 

  307.     #@pyqtSlot()

  308.     #def slot_test(self):

  309.         #print("test started")

  310.         #if not Carla.host.add_plugin(BINARY_NATIVE, PLUGIN_JACK, "/usr/bin/zita-rev1", "name of client", "label of client", None):

  311.             #print(Carla.host.get_last_error())

  312.         #print("test ended")

  313. 

  314.     # -----------------------------------------------------------------

  315.     # Called by containers

  316. 

  317.     def openSettingsWindow(self, hasCanvas, hasCanvasGL):

  318.         dialog = CarlaSettingsW(self, hasCanvas, hasCanvasGL)

  319.         return dialog.exec_()

  320. 

  321.     def setupContainer(self, showMiniCanvas, canvasThemeData = []):

  322.         if showMiniCanvas:

  323.             canvasWidth, canvasHeight, canvasBg, canvasBrush, canvasPen = canvasThemeData

  324.             self.ui.miniCanvasPreview.setViewTheme(canvasBg, canvasBrush, canvasPen)

  325.             self.ui.miniCanvasPreview.init(self.fContainer.scene, canvasWidth, canvasHeight, self.fSavedSettings[CARLA_KEY_CUSTOM_PAINTING])

  326.         else:

  327.             self.ui.miniCanvasPreview.hide()

  328. 

  329.         self.ui.splitter.insertWidget(1, self.fContainer)

  330. 

  331.     def updateContainer(self, canvasThemeData):

  332.         canvasWidth, canvasHeight, canvasBg, canvasBrush, canvasPen = canvasThemeData

  333.         self.ui.miniCanvasPreview.setViewTheme(canvasBg, canvasBrush, canvasPen)

  334.         self.ui.miniCanvasPreview.init(self.fContainer.scene, canvasWidth, canvasHeight, self.fSavedSettings[CARLA_KEY_CUSTOM_PAINTING])

  335. 

  336.     # -----------------------------------------------------------------

  337.     # Internal stuff (files)

  338. 

  339.     def loadProjectNow(self):

  340.         if not self.fProjectFilename:

  341.             return qCritical("ERROR: loading project without filename set")

  342. 

  343.         self.fIsProjectLoading = True

  344.         Carla.host.load_project(self.fProjectFilename)

  345.         self.fIsProjectLoading = False

  346. 

  347.         self.fContainer.projectLoaded()

  348. 

  349.     @pyqtSlot()

  350.     def slot_loadProjectNow(self):

  351.         self.loadProjectNow()

  352. 

  353.     def loadProjectLater(self, filename):

  354.         self.fProjectFilename = filename

  355.         self.setProperWindowTitle()

  356.         QTimer.singleShot(0, self.slot_loadProjectNow)

  357. 

  358.     def saveProjectNow(self):

  359.         if not self.fProjectFilename:

  360.             return qCritical("ERROR: saving project without filename set")

  361. 

  362.         Carla.host.save_project(self.fProjectFilename)

  363. 

  364.     # -----------------------------------------------------------------

  365.     # Internal stuff (engine)

  366. 

  367.     def setEngineSettings(self, settings = None):

  368.         if Carla.isPlugin:

  369.             return "Plugin"

  370. 

  371.         if settings is None: settings = QSettings()

  372. 

  373.         # -------------------------------------------------------------

  374.         # read settings

  375. 

  376.         # bool values

  377.         try:

  378.             forceStereo = settings.value(CARLA_KEY_ENGINE_FORCE_STEREO, CARLA_DEFAULT_FORCE_STEREO, type=bool)

  379.         except:

  380.             forceStereo = CARLA_DEFAULT_FORCE_STEREO

  381. 

  382.         try:

  383.             preferPluginBridges = settings.value(CARLA_KEY_ENGINE_PREFER_PLUGIN_BRIDGES, CARLA_DEFAULT_PREFER_PLUGIN_BRIDGES, type=bool)

  384.         except:

  385.             preferPluginBridges = CARLA_DEFAULT_PREFER_PLUGIN_BRIDGES

  386. 

  387.         try:

  388.             preferUiBridges = settings.value(CARLA_KEY_ENGINE_PREFER_UI_BRIDGES, CARLA_DEFAULT_PREFER_UI_BRIDGES, type=bool)

  389.         except:

  390.             preferUiBridges = CARLA_DEFAULT_PREFER_UI_BRIDGES

  391. 

  392.         try:

  393.             uisAlwaysOnTop = settings.value(CARLA_KEY_ENGINE_UIS_ALWAYS_ON_TOP, CARLA_DEFAULT_UIS_ALWAYS_ON_TOP, type=bool)

  394.         except:

  395.             uisAlwaysOnTop = CARLA_DEFAULT_UIS_ALWAYS_ON_TOP

  396. 

  397.         # int values

  398.         try:

  399.             maxParameters = settings.value(CARLA_KEY_ENGINE_MAX_PARAMETERS, CARLA_DEFAULT_MAX_PARAMETERS, type=int)

  400.         except:

  401.             maxParameters = CARLA_DEFAULT_MAX_PARAMETERS

  402. 

  403.         try:

  404.             uiBridgesTimeout = settings.value(CARLA_KEY_ENGINE_UI_BRIDGES_TIMEOUT, CARLA_DEFAULT_UI_BRIDGES_TIMEOUT, type=int)

  405.         except:

  406.             uiBridgesTimeout = CARLA_DEFAULT_UI_BRIDGES_TIMEOUT

  407. 

  408.         # enums

  409.         try:

  410.             processMode = settings.value(CARLA_KEY_ENGINE_PROCESS_MODE, CARLA_DEFAULT_PROCESS_MODE, type=int)

  411.         except:

  412.             processMode = CARLA_DEFAULT_PROCESS_MODE

  413. 

  414.         try:

  415.             transportMode = settings.value(CARLA_KEY_ENGINE_TRANSPORT_MODE, CARLA_DEFAULT_TRANSPORT_MODE, type=int)

  416.         except:

  417.             transportMode = CARLA_DEFAULT_TRANSPORT_MODE

  418. 

  419.         # driver name

  420.         try:

  421.             audioDriver = settings.value(CARLA_KEY_ENGINE_AUDIO_DRIVER, CARLA_DEFAULT_AUDIO_DRIVER, type=str)

  422.         except:

  423.             audioDriver = CARLA_DEFAULT_AUDIO_DRIVER

  424. 

  425.         # driver options

  426.         try:

  427.             audioDevice = settings.value("%s%s/Device" % (CARLA_KEY_ENGINE_DRIVER_PREFIX, audioDriver), "", type=str)

  428.         except:

  429.             audioDevice = ""

  430. 

  431.         try:

  432.             audioNumPeriods = settings.value("%s%s/NumPeriods" % (CARLA_KEY_ENGINE_DRIVER_PREFIX, audioDriver), CARLA_DEFAULT_AUDIO_NUM_PERIODS, type=int)

  433.         except:

  434.             audioNumPeriods = CARLA_DEFAULT_AUDIO_NUM_PERIODS

  435. 

  436.         try:

  437.             audioBufferSize = settings.value("%s%s/BufferSize" % (CARLA_KEY_ENGINE_DRIVER_PREFIX, audioDriver), CARLA_DEFAULT_AUDIO_BUFFER_SIZE, type=int)

  438.         except:

  439.             audioBufferSize = CARLA_DEFAULT_AUDIO_BUFFER_SIZE

  440. 

  441.         try:

  442.             audioSampleRate = settings.value("%s%s/SampleRate" % (CARLA_KEY_ENGINE_DRIVER_PREFIX, audioDriver), CARLA_DEFAULT_AUDIO_SAMPLE_RATE, type=int)

  443.         except:

  444.             audioSampleRate = CARLA_DEFAULT_AUDIO_SAMPLE_RATE

  445. 

  446.         # -------------------------------------------------------------

  447.         # fix things if needed

  448. 

  449.         if processMode == ENGINE_PROCESS_MODE_CONTINUOUS_RACK:

  450.             forceStereo = True

  451.         elif processMode == ENGINE_PROCESS_MODE_MULTIPLE_CLIENTS and LADISH_APP_NAME:

  452.             print("LADISH detected but using multiple clients (not allowed), forcing single client now")

  453.             processMode = ENGINE_PROCESS_MODE_SINGLE_CLIENT

  454. 

  455.         if audioDriver != "JACK" and transportMode == ENGINE_TRANSPORT_MODE_JACK:

  456.             transportMode = ENGINE_TRANSPORT_MODE_INTERNAL

  457. 

  458.         # -------------------------------------------------------------

  459.         # apply to engine

  460. 

  461.         Carla.host.set_engine_option(ENGINE_OPTION_FORCE_STEREO,          forceStereo,         "")

  462.         Carla.host.set_engine_option(ENGINE_OPTION_PREFER_PLUGIN_BRIDGES, preferPluginBridges, "")

  463.         Carla.host.set_engine_option(ENGINE_OPTION_PREFER_UI_BRIDGES,     preferUiBridges,     "")

  464.         Carla.host.set_engine_option(ENGINE_OPTION_UIS_ALWAYS_ON_TOP,     uisAlwaysOnTop,      "")

  465. 

  466.         Carla.host.set_engine_option(ENGINE_OPTION_MAX_PARAMETERS,        maxParameters,       "")

  467.         Carla.host.set_engine_option(ENGINE_OPTION_UI_BRIDGES_TIMEOUT,    uiBridgesTimeout,    "")

  468. 

  469.         Carla.host.set_engine_option(ENGINE_OPTION_PROCESS_MODE,          processMode,         "")

  470.         Carla.host.set_engine_option(ENGINE_OPTION_TRANSPORT_MODE,        transportMode,       "")

  471. 

  472.         Carla.host.set_engine_option(ENGINE_OPTION_AUDIO_NUM_PERIODS,     audioNumPeriods,     "")

  473.         Carla.host.set_engine_option(ENGINE_OPTION_AUDIO_BUFFER_SIZE,     audioBufferSize,     "")

  474.         Carla.host.set_engine_option(ENGINE_OPTION_AUDIO_SAMPLE_RATE,     audioSampleRate,     "")

  475.         Carla.host.set_engine_option(ENGINE_OPTION_AUDIO_DEVICE,          0,                   audioDevice)

  476. 

  477.         # save this for later

  478.         Carla.maxParameters = maxParameters

  479. 

  480.         # return selected driver name

  481.         return audioDriver

  482. 

  483.     def startEngine(self):

  484.         audioDriver = self.setEngineSettings()

  485. 

  486.         if not Carla.host.engine_init(audioDriver, self.fClientName):

  487.             if self.fFirstEngineInit:

  488.                 self.fFirstEngineInit = False

  489.                 return

  490. 

  491.             audioError = Carla.host.get_last_error()

  492. 

  493.             if audioError:

  494.                 QMessageBox.critical(self, self.tr("Error"), self.tr("Could not connect to Audio backend '%s', possible reasons:\n%s" % (audioDriver, audioError)))

  495.             else:

  496.                 QMessageBox.critical(self, self.tr("Error"), self.tr("Could not connect to Audio backend '%s'" % audioDriver))

  497.             return

  498. 

  499.         self.fFirstEngineInit = False

  500. 

  501.     def stopEngine(self):

  502.         if self.fContainer.getPluginCount() > 0:

  503.             ask = QMessageBox.question(self, self.tr("Warning"), self.tr("There are still some plugins loaded, you need to remove them to stop the engine.\n"

  504.                                                                          "Do you want to do this now?"),

  505.                                                                          QMessageBox.Yes | QMessageBox.No, QMessageBox.No)

  506.             if ask != QMessageBox.Yes:

  507.                 return

  508. 

  509.             self.ui.act_plugin_remove_all.setEnabled(False)

  510.             self.fContainer.removeAllPlugins()

  511. 

  512.         if Carla.host.is_engine_running() and not Carla.host.engine_close():

  513.             print(Carla.host.get_last_error())

  514. 

  515.     # -----------------------------------------------------------------

  516.     # Internal stuff (plugins)

  517. 

  518.     def getExtraPtr(self, plugin):

  519.         ptype = plugin['type']

  520. 

  521.         if ptype == PLUGIN_LADSPA:

  522.             uniqueId = plugin['uniqueId']

  523. 

  524.             self.maybeLoadRDFs()

  525. 

  526.             for rdfItem in self.fLadspaRdfList:

  527.                 if rdfItem.UniqueID == uniqueId:

  528.                     return pointer(rdfItem)

  529. 

  530.         elif ptype in (PLUGIN_FILE_GIG, PLUGIN_FILE_SF2):

  531.             if plugin['name'].lower().endswith(" (16 outputs)"):

  532.                 return c_char_p("true".encode("utf-8"))

  533. 

  534.         return None

  535. 

  536.     def maybeLoadRDFs(self):

  537.         if not self.fLadspaRdfNeedsUpdate:

  538.             return

  539. 

  540.         self.fLadspaRdfNeedsUpdate = False

  541.         self.fLadspaRdfList = []

  542. 

  543.         if not haveLRDF:

  544.             return

  545. 

  546.         settingsDir  = os.path.join(HOME, ".config", "falkTX")

  547.         frLadspaFile = os.path.join(settingsDir, "ladspa_rdf.db")

  548. 

  549.         if os.path.exists(frLadspaFile):

  550.             frLadspa = open(frLadspaFile, 'r')

  551. 

  552.             try:

  553.                 self.fLadspaRdfList = ladspa_rdf.get_c_ladspa_rdfs(json.load(frLadspa))

  554.             except:

  555.                 pass

  556. 

  557.             frLadspa.close()

  558. 

  559.     def setLoadRDFsNeeded(self):

  560.         self.fLadspaRdfNeedsUpdate = True

  561. 

  562.     # -----------------------------------------------------------------

  563.     # Internal stuff (transport)

  564. 

  565.     def refreshTransport(self, forced = False):

  566.         if Carla.sampleRate == 0.0 or not Carla.host.is_engine_running():

  567.             return

  568. 

  569.         timeInfo = Carla.host.get_transport_info()

  570.         playing  = bool(timeInfo['playing'])

  571.         frame    = int(timeInfo['frame'])

  572. 

  573.         if playing != self.fLastTransportState or forced:

  574.             if playing:

  575.                 icon = getIcon("media-playback-pause")

  576.                 self.ui.act_transport_play.setChecked(True)

  577.                 self.ui.act_transport_play.setIcon(icon)

  578.                 self.ui.act_transport_play.setText(self.tr("&Pause"))

  579.             else:

  580.                 icon = getIcon("media-playback-start")

  581.                 self.ui.act_transport_play.setChecked(False)

  582.                 self.ui.act_transport_play.setIcon(icon)

  583.                 self.ui.act_transport_play.setText(self.tr("&Play"))

  584. 

  585.             self.fLastTransportState = playing

  586. 

  587.         if frame != self.fLastTransportFrame or forced:

  588.             time = frame / Carla.sampleRate

  589.             secs = time % 60

  590.             mins = (time / 60) % 60

  591.             hrs  = (time / 3600) % 60

  592. 

  593.             self.fTextTransport = "Transport %s, at %02i:%02i:%02i" % ("playing" if playing else "stopped", hrs, mins, secs)

  594.             self.fLastTransportFrame = frame

  595. 

  596.     def setTransportMenuEnabled(self, enabled):

  597.         self.ui.act_transport_play.setEnabled(enabled)

  598.         self.ui.act_transport_stop.setEnabled(enabled)

  599.         self.ui.act_transport_backwards.setEnabled(enabled)

  600.         self.ui.act_transport_forwards.setEnabled(enabled)

  601.         self.ui.menu_Transport.setEnabled(enabled)

  602. 

  603.     # -----------------------------------------------------------------

  604.     # Internal stuff (settings)

  605. 

  606.     def loadSettings(self, firstTime):

  607.         settings = QSettings()

  608. 

  609.         if firstTime:

  610.             self.restoreGeometry(settings.value("Geometry", ""))

  611. 

  612.             showToolbar = settings.value("ShowToolbar", True, type=bool)

  613.             self.ui.act_settings_show_toolbar.setChecked(showToolbar)

  614.             self.ui.toolBar.setVisible(showToolbar)

  615. 

  616.             if settings.contains("SplitterState"):

  617.                 self.ui.splitter.restoreState(settings.value("SplitterState", ""))

  618.             else:

  619.                 self.ui.splitter.setSizes([210, 99999])

  620. 

  621.             diskFolders = toList(settings.value("DiskFolders", [HOME]))

  622. 

  623.             self.ui.cb_disk.setItemData(0, HOME)

  624. 

  625.             for i in range(len(diskFolders)):

  626.                 if i == 0: continue

  627.                 folder = diskFolders[i]

  628.                 self.ui.cb_disk.addItem(os.path.basename(folder), folder)

  629. 

  630.             if MACOS and not settings.value(CARLA_KEY_MAIN_USE_PRO_THEME, True, type=bool):

  631.                 self.setUnifiedTitleAndToolBarOnMac(True)

  632. 

  633.         # ---------------------------------------------

  634.         # plugin checks

  635. 

  636.         if settings.value("Engine/DisableChecks", False, type=bool):

  637.             os.environ["CARLA_DISCOVERY_NO_PROCESSING_CHECKS"] = "true"

  638. 

  639.         elif os.getenv("CARLA_DISCOVERY_NO_PROCESSING_CHECKS"):

  640.             os.environ.pop("CARLA_DISCOVERY_NO_PROCESSING_CHECKS")

  641. 

  642.         # ---------------------------------------------

  643. 

  644.         if not Carla.isPlugin:

  645.             # engine

  646.             self.setEngineSettings(settings)

  647. 

  648.             # plugin paths

  649.             LADSPA_PATH = toList(settings.value("Paths/LADSPA", Carla.DEFAULT_LADSPA_PATH))

  650.             DSSI_PATH   = toList(settings.value("Paths/DSSI",   Carla.DEFAULT_DSSI_PATH))

  651.             LV2_PATH    = toList(settings.value("Paths/LV2",    Carla.DEFAULT_LV2_PATH))

  652.             VST_PATH    = toList(settings.value("Paths/VST",    Carla.DEFAULT_VST_PATH))

  653.             AU_PATH     = toList(settings.value("Paths/AU",     Carla.DEFAULT_AU_PATH))

  654.             CSOUND_PATH = toList(settings.value("Paths/CSOUND", Carla.DEFAULT_CSOUND_PATH))

  655.             GIG_PATH    = toList(settings.value("Paths/GIG",    Carla.DEFAULT_GIG_PATH))

  656.             SF2_PATH    = toList(settings.value("Paths/SF2",    Carla.DEFAULT_SF2_PATH))

  657.             SFZ_PATH    = toList(settings.value("Paths/SFZ",    Carla.DEFAULT_SFZ_PATH))

  658. 

  659.             os.environ["LADSPA_PATH"] = splitter.join(LADSPA_PATH)

  660.             os.environ["DSSI_PATH"]   = splitter.join(DSSI_PATH)

  661.             os.environ["LV2_PATH"]    = splitter.join(LV2_PATH)

  662.             os.environ["VST_PATH"]    = splitter.join(VST_PATH)

  663.             os.environ["AU_PATH"]     = splitter.join(AU_PATH)

  664.             os.environ["CSOUND_PATH"] = splitter.join(CSOUND_PATH)

  665.             os.environ["GIG_PATH"]    = splitter.join(GIG_PATH)

  666.             os.environ["SF2_PATH"]    = splitter.join(SF2_PATH)

  667.             os.environ["SFZ_PATH"]    = splitter.join(SFZ_PATH)

  668. 

  669.         # ---------------------------------------------

  670. 

  671.         # TODO

  672. 

  673.         self.fSavedSettings = {

  674.             CARLA_KEY_MAIN_PROJECT_FOLDER:     settings.value(CARLA_KEY_MAIN_PROJECT_FOLDER,     CARLA_DEFAULT_MAIN_PROJECT_FOLDER,     type=str),

  675.             CARLA_KEY_MAIN_REFRESH_INTERVAL:   settings.value(CARLA_KEY_MAIN_REFRESH_INTERVAL,   CARLA_DEFAULT_MAIN_REFRESH_INTERVAL,   type=int),

  676.             CARLA_KEY_CANVAS_THEME:            settings.value(CARLA_KEY_CANVAS_THEME,            CARLA_DEFAULT_CANVAS_THEME,            type=str),

  677.             CARLA_KEY_CANVAS_SIZE:             settings.value(CARLA_KEY_CANVAS_SIZE,             CARLA_DEFAULT_CANVAS_SIZE,             type=str),

  678.             CARLA_KEY_CANVAS_AUTO_HIDE_GROUPS: settings.value(CARLA_KEY_CANVAS_AUTO_HIDE_GROUPS, CARLA_DEFAULT_CANVAS_AUTO_HIDE_GROUPS, type=bool),

  679.             CARLA_KEY_CANVAS_USE_BEZIER_LINES: settings.value(CARLA_KEY_CANVAS_USE_BEZIER_LINES, CARLA_DEFAULT_CANVAS_USE_BEZIER_LINES, type=bool),

  680.             CARLA_KEY_CANVAS_EYE_CANDY:        settings.value(CARLA_KEY_CANVAS_EYE_CANDY,        CARLA_DEFAULT_CANVAS_EYE_CANDY,        type=int),

  681.             CARLA_KEY_CANVAS_USE_OPENGL:       settings.value(CARLA_KEY_CANVAS_USE_OPENGL,       CARLA_DEFAULT_CANVAS_USE_OPENGL,       type=bool),

  682.             CARLA_KEY_CANVAS_ANTIALIASING:     settings.value(CARLA_KEY_CANVAS_ANTIALIASING,     CARLA_DEFAULT_CANVAS_ANTIALIASING,     type=int),

  683.             CARLA_KEY_CANVAS_HQ_ANTIALIASING:  settings.value(CARLA_KEY_CANVAS_HQ_ANTIALIASING,  CARLA_DEFAULT_CANVAS_HQ_ANTIALIASING,  type=bool),

  684.             CARLA_KEY_CUSTOM_PAINTING:        (settings.value(CARLA_KEY_MAIN_USE_PRO_THEME, True, type=bool) and

  685.                                                settings.value(CARLA_KEY_MAIN_PRO_THEME_COLOR, "Black", type=str).lower() == "black")

  686.         }

  687. 

  688.         # ---------------------------------------------

  689. 

  690.         if self.fIdleTimerFast != 0:

  691.             self.killTimer(self.fIdleTimerFast)

  692.             self.fIdleTimerFast = self.startTimer(self.fSavedSettings[CARLA_KEY_MAIN_REFRESH_INTERVAL])

  693. 

  694.         if self.fIdleTimerSlow != 0:

  695.             self.killTimer(self.fIdleTimerSlow)

  696.             self.fIdleTimerSlow = self.startTimer(self.fSavedSettings[CARLA_KEY_MAIN_REFRESH_INTERVAL]*2)

  697. 

  698.     def saveSettings(self):

  699.         settings = QSettings()

  700. 

  701.         settings.setValue("Geometry", self.saveGeometry())

  702.         settings.setValue("SplitterState", self.ui.splitter.saveState())

  703.         settings.setValue("ShowToolbar", self.ui.toolBar.isVisible())

  704. 

  705.         diskFolders = []

  706. 

  707.         for i in range(self.ui.cb_disk.count()):

  708.             diskFolders.append(self.ui.cb_disk.itemData(i))

  709. 

  710.         settings.setValue("DiskFolders", diskFolders)

  711. 

  712.         self.fContainer.saveSettings(settings)

  713. 

  714.     # -----------------------------------------------------------------

  715.     # Internal stuff (gui)

  716. 

  717.     def setProperWindowTitle(self):

  718.         title = self.fClientName

  719. 

  720.         if self.fProjectFilename:

  721.             title += " - %s" % os.path.basename(self.fProjectFilename)

  722.         if self.fSessionManagerName:

  723.             title += " (%s)" % self.fSessionManagerName

  724. 

  725.         self.setWindowTitle(title)

  726. 

  727.     # -----------------------------------------------------------------

  728. 

  729.     @pyqtSlot()

  730.     def slot_fileNew(self):

  731.         self.fContainer.removeAllPlugins()

  732.         self.fProjectFilename = ""

  733.         self.setProperWindowTitle()

  734. 

  735.     @pyqtSlot()

  736.     def slot_fileOpen(self):

  737.         fileFilter  = self.tr("Carla Project File (*.carxp)")

  738.         filenameTry = QFileDialog.getOpenFileName(self, self.tr("Open Carla Project File"), self.fSavedSettings[CARLA_KEY_MAIN_PROJECT_FOLDER], filter=fileFilter)

  739. 

  740.         if not filenameTry:

  741.             return

  742.         filename = filenameTry if isinstance(filenameTry, str) else filenameTry[0]

  743. 

  744.         newFile = True

  745. 

  746.         if self.fContainer.getPluginCount() > 0:

  747.             ask = QMessageBox.question(self, self.tr("Question"), self.tr("There are some plugins loaded, do you want to remove them now?"),

  748.                                                                           QMessageBox.Yes | QMessageBox.No, QMessageBox.No)

  749.             newFile = (ask == QMessageBox.Yes)

  750. 

  751.         if newFile:

  752.             self.fContainer.removeAllPlugins()

  753.             self.fProjectFilename = filename

  754.             self.setProperWindowTitle()

  755.             self.loadProjectNow()

  756.         else:

  757.             filenameOld = self.fProjectFilename

  758.             self.fProjectFilename = filename

  759.             self.loadProjectNow()

  760.             self.fProjectFilename = filenameOld

  761. 

  762.     @pyqtSlot()

  763.     def slot_fileSave(self, saveAs=False):

  764.         if self.fProjectFilename and not saveAs:

  765.             return self.saveProjectNow()

  766. 

  767.         fileFilter  = self.tr("Carla Project File (*.carxp)")

  768.         filenameTry = QFileDialog.getSaveFileName(self, self.tr("Save Carla Project File"), self.fSavedSettings[CARLA_KEY_MAIN_PROJECT_FOLDER], filter=fileFilter)

  769. 

  770.         if not filenameTry:

  771.             return

  772.         filename = filenameTry if isinstance(filenameTry, str) else filenameTry[0]

  773. 

  774.         if not filename.endswith(".carxp"):

  775.             filename += ".carxp"

  776. 

  777.         if self.fProjectFilename != filename:

  778.             self.fProjectFilename = filename

  779.             self.setProperWindowTitle()

  780. 

  781.         self.saveProjectNow()

  782. 

  783.     @pyqtSlot()

  784.     def slot_fileSaveAs(self):

  785.         self.slot_fileSave(True)

  786. 

  787.     # -----------------------------------------------------------------

  788. 

  789.     @pyqtSlot()

  790.     def slot_engineStart(self, doStart = True):

  791.         if doStart: self.startEngine()

  792. 

  793.         check = Carla.host.is_engine_running()

  794.         self.ui.menu_PluginMacros.setEnabled(check)

  795.         self.ui.menu_Canvas.setEnabled(check)

  796. 

  797.         if not Carla.isPlugin:

  798.             self.ui.act_file_save.setEnabled(check)

  799.             self.ui.act_engine_start.setEnabled(not check)

  800.             self.ui.act_engine_stop.setEnabled(check)

  801. 

  802.             if self.fSessionManagerName != "Non Session Manager":

  803.                 self.ui.act_file_open.setEnabled(check)

  804.                 self.ui.act_file_save_as.setEnabled(check)

  805. 

  806.             self.setTransportMenuEnabled(check)

  807. 

  808.         if check:

  809.             if not Carla.isPlugin:

  810.                 self.refreshTransport(True)

  811. 

  812.             self.fContainer.engineStarted()

  813. 

  814.     @pyqtSlot()

  815.     def slot_engineStop(self, doStop = True):

  816.         if doStop: self.stopEngine()

  817. 

  818.         # FIXME?

  819.         if self.fContainer.getPluginCount() > 0:

  820.             self.ui.act_plugin_remove_all.setEnabled(False)

  821.             self.fContainer.removeAllPlugins()

  822. 

  823.         check = Carla.host.is_engine_running()

  824.         self.ui.menu_PluginMacros.setEnabled(check)

  825.         self.ui.menu_Canvas.setEnabled(check)

  826. 

  827.         if not Carla.isPlugin:

  828.             self.ui.act_file_save.setEnabled(check)

  829.             self.ui.act_engine_start.setEnabled(not check)

  830.             self.ui.act_engine_stop.setEnabled(check)

  831. 

  832.             if self.fSessionManagerName != "Non Session Manager":

  833.                 self.ui.act_file_open.setEnabled(check)

  834.                 self.ui.act_file_save_as.setEnabled(check)

  835. 

  836.             self.setTransportMenuEnabled(check)

  837. 

  838.         if not check:

  839.             self.fTextTransport = ""

  840.             self.fContainer.engineStopped()

  841. 

  842.     # -----------------------------------------------------------------

  843. 

  844.     @pyqtSlot()

  845.     def slot_pluginAdd(self):

  846.         dialog = PluginDatabaseW(self)

  847. 

  848.         if not dialog.exec_():

  849.             return

  850. 

  851.         if not Carla.host.is_engine_running():

  852.             QMessageBox.warning(self, self.tr("Warning"), self.tr("Cannot add new plugins while engine is stopped"))

  853.             return

  854. 

  855.         btype    = dialog.fRetPlugin['build']

  856.         ptype    = dialog.fRetPlugin['type']

  857.         filename = dialog.fRetPlugin['filename']

  858.         label    = dialog.fRetPlugin['label']

  859.         extraPtr = self.getExtraPtr(dialog.fRetPlugin)

  860. 

  861.         if not Carla.host.add_plugin(btype, ptype, filename, None, label, extraPtr):

  862.             CustomMessageBox(self, QMessageBox.Critical, self.tr("Error"), self.tr("Failed to load plugin"), charPtrToString(Carla.host.get_last_error()), QMessageBox.Ok, QMessageBox.Ok)

  863.             return

  864. 

  865.     @pyqtSlot()

  866.     def slot_pluginRemoveAll(self):

  867.         self.ui.act_plugin_remove_all.setEnabled(False)

  868.         self.fContainer.removeAllPlugins()

  869.         Carla.host.remove_all_plugins()

  870. 

  871.     # -----------------------------------------------------------------

  872. 

  873.     @pyqtSlot(bool)

  874.     def slot_transportPlayPause(self, toggled):

  875.         if not Carla.host.is_engine_running():

  876.             return

  877. 

  878.         if toggled:

  879.             Carla.host.transport_play()

  880.         else:

  881.             Carla.host.transport_pause()

  882. 

  883.         self.refreshTransport()

  884. 

  885.     @pyqtSlot()

  886.     def slot_transportStop(self):

  887.         if not Carla.host.is_engine_running():

  888.             return

  889. 

  890.         Carla.host.transport_pause()

  891.         Carla.host.transport_relocate(0)

  892. 

  893.         self.refreshTransport()

  894. 

  895.     @pyqtSlot()

  896.     def slot_transportBackwards(self):

  897.         if not Carla.host.is_engine_running():

  898.             return

  899. 

  900.         newFrame = Carla.host.get_current_transport_frame() - 100000

  901. 

  902.         if newFrame < 0:

  903.             newFrame = 0

  904. 

  905.         Carla.host.transport_relocate(newFrame)

  906. 

  907.     @pyqtSlot()

  908.     def slot_transportForwards(self):

  909.         if not Carla.host.is_engine_running():

  910.             return

  911. 

  912.         newFrame = Carla.host.get_current_transport_frame() + 100000

  913.         Carla.host.transport_relocate(newFrame)

  914. 

  915.     # -----------------------------------------------------------------

  916. 

  917.     @pyqtSlot()

  918.     def slot_aboutCarla(self):

  919.         CarlaAboutW(self).exec_()

  920. 

  921.     @pyqtSlot()

  922.     def slot_aboutQt(self):

  923.         QApplication.instance().aboutQt()

  924. 

  925.     # -----------------------------------------------------------------

  926. 

  927.     @pyqtSlot(int)

  928.     def slot_diskFolderChanged(self, index):

  929.         if index < 0:

  930.             return

  931.         elif index == 0:

  932.             filename = HOME

  933.             self.ui.b_disk_remove.setEnabled(False)

  934.         else:

  935.             filename = self.ui.cb_disk.itemData(index)

  936.             self.ui.b_disk_remove.setEnabled(True)

  937. 

  938.         self.fDirModel.setRootPath(filename)

  939.         self.ui.fileTreeView.setRootIndex(self.fDirModel.index(filename))

  940. 

  941.     @pyqtSlot()

  942.     def slot_diskFolderAdd(self):

  943.         newPath = QFileDialog.getExistingDirectory(self, self.tr("New Folder"), "", QFileDialog.ShowDirsOnly)

  944. 

  945.         if newPath:

  946.             if newPath[-1] == os.sep:

  947.                 newPath = newPath[:-1]

  948.             self.ui.cb_disk.addItem(os.path.basename(newPath), newPath)

  949.             self.ui.cb_disk.setCurrentIndex(self.ui.cb_disk.count()-1)

  950.             self.ui.b_disk_remove.setEnabled(True)

  951. 

  952.     @pyqtSlot()

  953.     def slot_diskFolderRemove(self):

  954.         index = self.ui.cb_disk.currentIndex()

  955. 

  956.         if index <= 0:

  957.             return

  958. 

  959.         self.ui.cb_disk.removeItem(index)

  960. 

  961.         if self.ui.cb_disk.currentIndex() == 0:

  962.             self.ui.b_disk_remove.setEnabled(False)

  963. 

  964.     @pyqtSlot(QModelIndex)

  965.     def slot_fileTreeDoubleClicked(self, modelIndex):

  966.         filename = self.fDirModel.filePath(modelIndex)

  967. 

  968.         if not Carla.host.load_file(filename):

  969.             CustomMessageBox(self, QMessageBox.Critical, self.tr("Error"),

  970.                              self.tr("Failed to load file"),

  971.                              Carla.host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  972. 

  973.     # -----------------------------------------------------------------

  974. 

  975.     @pyqtSlot(int, int, int, float, str)

  976.     def slot_handleDebugCallback(self, pluginId, value1, value2, value3, valueStr):

  977.         print("DEBUG:", pluginId, value1, value2, value3, valueStr)

  978.         #self.ui.pte_log.appendPlainText(valueStr.replace("", "DEBUG: ").replace("", "ERROR: ").replace("", "").replace("\n", ""))

  979. 

  980.     # -----------------------------------------------------------------

  981. 

  982.     @pyqtSlot(int, str)

  983.     def slot_handlePluginAddedCallback(self, pluginId, pluginName):

  984.         self.fContainer.addPlugin(pluginId, self.fIsProjectLoading)

  985. 

  986.         if self.fContainer.getPluginCount() == 1:

  987.             self.ui.act_plugin_remove_all.setEnabled(True)

  988. 

  989.     @pyqtSlot(int)

  990.     def slot_handlePluginRemovedCallback(self, pluginId):

  991.         self.fContainer.removePlugin(pluginId)

  992. 

  993.         if self.fContainer.getPluginCount() == 0:

  994.             self.ui.act_plugin_remove_all.setEnabled(False)

  995. 

  996.     @pyqtSlot(int, str)

  997.     def slot_handlePluginRenamedCallback(self, pluginId, newName):

  998.         self.fContainer.renamePlugin(pluginId, newName)

  999. 

  1000.     @pyqtSlot(int, str)

  1001.     def slot_handlePluginUnavailableCallback(self, pluginId, errorMsg):

  1002.         self.fContainer.disablePlugin(pluginId, errorMsg)

  1003. 

  1004.     # -----------------------------------------------------------------

  1005. 

  1006.     @pyqtSlot(str)

  1007.     def slot_handleEngineStartedCallback(self, processMode, transportMode, driverName):

  1008.         Carla.processMode   = processMode

  1009.         Carla.transportMode = transportMode

  1010.         Carla.bufferSize    = Carla.host.get_buffer_size()

  1011.         Carla.sampleRate    = Carla.host.get_sample_rate()

  1012. 

  1013.         self.slot_engineStart(False)

  1014. 

  1015.         if self.fIdleTimerFast == 0:

  1016.             self.fIdleTimerFast = self.startTimer(self.fSavedSettings[CARLA_KEY_MAIN_REFRESH_INTERVAL])

  1017.         if self.fIdleTimerSlow == 0:

  1018.             self.fIdleTimerSlow = self.startTimer(self.fSavedSettings[CARLA_KEY_MAIN_REFRESH_INTERVAL]*2)

  1019. 

  1020.     @pyqtSlot()

  1021.     def slot_handleEngineStoppedCallback(self):

  1022.         if self.fIdleTimerFast != 0:

  1023.             self.killTimer(self.fIdleTimerFast)

  1024.             self.fIdleTimerFast = 0

  1025. 

  1026.         if self.fIdleTimerSlow != 0:

  1027.             self.killTimer(self.fIdleTimerSlow)

  1028.             self.fIdleTimerSlow = 0

  1029. 

  1030.         self.slot_engineStop(False)

  1031. 

  1032.         Carla.bufferSize = 0

  1033.         Carla.sampleRate = 0.0

  1034. 

  1035.     # -----------------------------------------------------------------

  1036. 

  1037.     @pyqtSlot(int)

  1038.     def slot_handleProcessModeChangedCallback(self, newProcessMode):

  1039.         self.fEngineChanged = True

  1040. 

  1041.     @pyqtSlot(int)

  1042.     def slot_handleTransportModeChangedCallback(self, newTransportMode):

  1043.         self.fEngineChanged = True

  1044. 

  1045.     # -----------------------------------------------------------------

  1046. 

  1047.     @pyqtSlot(int)

  1048.     def slot_handleBufferSizeChangedCallback(self, newBufferSize):

  1049.         self.fEngineChanged = True

  1050. 

  1051.     @pyqtSlot(float)

  1052.     def slot_handleSampleRateChangedCallback(self, newSampleRate):

  1053.         self.fEngineChanged = True

  1054. 

  1055.     # -----------------------------------------------------------------

  1056. 

  1057.     @pyqtSlot(str)

  1058.     def slot_handleInfoCallback(self, info):

  1059.         pass

  1060. 

  1061.     @pyqtSlot(str)

  1062.     def slot_handleErrorCallback(self, error):

  1063.         pass

  1064. 

  1065.     @pyqtSlot()

  1066.     def slot_handleQuitCallback(self):

  1067.         pass

  1068. 

  1069.     # -----------------------------------------------------------------

  1070. 

  1071.     @pyqtSlot()

  1072.     def slot_handleSIGUSR1(self):

  1073.         print("Got SIGUSR1 -> Saving project now")

  1074.         QTimer.singleShot(0, self.slot_fileSave)

  1075. 

  1076.     @pyqtSlot()

  1077.     def slot_handleSIGTERM(self):

  1078.         print("Got SIGTERM -> Closing now")

  1079.         self.close()

  1080. 

  1081.     # -----------------------------------------------------------------

  1082. 

  1083.     def timerEvent(self, event):

  1084.         if event.timerId() == self.fIdleTimerFast:

  1085.             #if not Carla.isPlugin:

  1086.             Carla.host.engine_idle()

  1087.             self.refreshTransport()

  1088. 

  1089.             self.fContainer.idleFast()

  1090. 

  1091.         elif event.timerId() == self.fIdleTimerSlow:

  1092.             if self.fEngineChanged:

  1093.                 self.fContainer.engineChanged()

  1094.                 self.fEngineChanged = False

  1095. 

  1096.             self.fContainer.idleSlow()

  1097. 

  1098.         QMainWindow.timerEvent(self, event)

  1099. 

  1100.     def closeEvent(self, event):

  1101.         if self.fIdleTimerFast != 0:

  1102.             self.killTimer(self.fIdleTimerFast)

  1103.             self.fIdleTimerFast = 0

  1104. 

  1105.         if self.fIdleTimerSlow != 0:

  1106.             self.killTimer(self.fIdleTimerSlow)

  1107.             self.fIdleTimerSlow = 0

  1108. 

  1109.         self.saveSettings()

  1110. 

  1111.         if Carla.host.is_engine_running():

  1112.             Carla.host.set_engine_about_to_close()

  1113.             self.ui.act_plugin_remove_all.setEnabled(False)

  1114.             self.fContainer.removeAllPlugins()

  1115.             self.stopEngine()

  1116. 

  1117.         QMainWindow.closeEvent(self, event)

  1118. 

  1119. # ------------------------------------------------------------------------------------------------------------

  1120. # Engine callback

  1121. 

  1122. def engineCallback(ptr, action, pluginId, value1, value2, value3, valueStr):

  1123.     if action == ENGINE_CALLBACK_PROCESS_MODE_CHANGED:

  1124.         Carla.processMode = value1

  1125.         if Carla.gui is not None:

  1126.             Carla.gui.ProcessModeChangedCallback.emit(value1)

  1127.         return

  1128. 

  1129.     if action == ENGINE_CALLBACK_TRANSPORT_MODE_CHANGED:

  1130.         Carla.transportMode = value1

  1131.         if Carla.gui is not None:

  1132.             Carla.gui.TransportModeChangedCallback.emit(value1)

  1133.         return

  1134. 

  1135.     if action == ENGINE_CALLBACK_BUFFER_SIZE_CHANGED:

  1136.         Carla.bufferSize = value1

  1137.         if Carla.gui is not None:

  1138.             Carla.gui.BufferSizeChangedCallback.emit(value1)

  1139.         return

  1140. 

  1141.     if action == ENGINE_CALLBACK_SAMPLE_RATE_CHANGED:

  1142.         Carla.sampleRate = value1

  1143.         if Carla.gui is not None:

  1144.             Carla.gui.SampleRateChangedCallback.emit(value3)

  1145.         return

  1146. 

  1147.     if Carla.gui is None:

  1148.         print("WARNING: Got engine callback but UI is not ready : ", pluginId, value1, value2, value3, valueStr)

  1149.         return

  1150. 

  1151.     valueStr = charPtrToString(valueStr)

  1152. 

  1153.     if action == ENGINE_CALLBACK_DEBUG:

  1154.         Carla.gui.DebugCallback.emit(pluginId, value1, value2, value3, valueStr)

  1155.     elif action == ENGINE_CALLBACK_PLUGIN_ADDED:

  1156.         Carla.gui.PluginAddedCallback.emit(pluginId, valueStr)

  1157.     elif action == ENGINE_CALLBACK_PLUGIN_REMOVED:

  1158.         Carla.gui.PluginRemovedCallback.emit(pluginId)

  1159.     elif action == ENGINE_CALLBACK_PLUGIN_RENAMED:

  1160.         Carla.gui.PluginRenamedCallback.emit(pluginId, valueStr)

  1161.     elif action == ENGINE_CALLBACK_PLUGIN_UNAVAILABLE:

  1162.         Carla.gui.PluginUnavailableCallback.emit(pluginId, valueStr)

  1163.     elif action == ENGINE_CALLBACK_PARAMETER_VALUE_CHANGED:

  1164.         Carla.gui.ParameterValueChangedCallback.emit(pluginId, value1, value3)

  1165.     elif action == ENGINE_CALLBACK_PARAMETER_DEFAULT_CHANGED:

  1166.         Carla.gui.ParameterDefaultChangedCallback.emit(pluginId, value1, value3)

  1167.     elif action == ENGINE_CALLBACK_PARAMETER_MIDI_CC_CHANGED:

  1168.         Carla.gui.ParameterMidiCcChangedCallback.emit(pluginId, value1, value2)

  1169.     elif action == ENGINE_CALLBACK_PARAMETER_MIDI_CHANNEL_CHANGED:

  1170.         Carla.gui.ParameterMidiChannelChangedCallback.emit(pluginId, value1, value2)

  1171.     elif action == ENGINE_CALLBACK_PROGRAM_CHANGED:

  1172.         Carla.gui.ProgramChangedCallback.emit(pluginId, value1)

  1173.     elif action == ENGINE_CALLBACK_MIDI_PROGRAM_CHANGED:

  1174.         Carla.gui.MidiProgramChangedCallback.emit(pluginId, value1)

  1175.     elif action == ENGINE_CALLBACK_UI_STATE_CHANGED:

  1176.         Carla.gui.UiStateChangedCallback.emit(pluginId, value1)

  1177.     elif action == ENGINE_CALLBACK_NOTE_ON:

  1178.         Carla.gui.NoteOnCallback.emit(pluginId, value1, value2, int(value3))

  1179.     elif action == ENGINE_CALLBACK_NOTE_OFF:

  1180.         Carla.gui.NoteOffCallback.emit(pluginId, value1, value2)

  1181.     elif action == ENGINE_CALLBACK_UPDATE:

  1182.         Carla.gui.UpdateCallback.emit(pluginId)

  1183.     elif action == ENGINE_CALLBACK_RELOAD_INFO:

  1184.         Carla.gui.ReloadInfoCallback.emit(pluginId)

  1185.     elif action == ENGINE_CALLBACK_RELOAD_PARAMETERS:

  1186.         Carla.gui.ReloadParametersCallback.emit(pluginId)

  1187.     elif action == ENGINE_CALLBACK_RELOAD_PROGRAMS:

  1188.         Carla.gui.ReloadProgramsCallback.emit(pluginId)

  1189.     elif action == ENGINE_CALLBACK_RELOAD_ALL:

  1190.         Carla.gui.ReloadAllCallback.emit(pluginId)

  1191.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_ADDED:

  1192.         Carla.gui.PatchbayClientAddedCallback.emit(pluginId, value1, value2, valueStr)

  1193.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_REMOVED:

  1194.         Carla.gui.PatchbayClientRemovedCallback.emit(pluginId)

  1195.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_RENAMED:

  1196.         Carla.gui.PatchbayClientRenamedCallback.emit(pluginId, valueStr)

  1197.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_DATA_CHANGED:

  1198.         Carla.gui.PatchbayClientDataChangedCallback.emit(pluginId, value1, value2)

  1199.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_ADDED:

  1200.         Carla.gui.PatchbayPortAddedCallback.emit(pluginId, value1, value2, valueStr)

  1201.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_REMOVED:

  1202.         Carla.gui.PatchbayPortRemovedCallback.emit(pluginId, value1)

  1203.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_RENAMED:

  1204.         Carla.gui.PatchbayPortRenamedCallback.emit(pluginId, value1, valueStr)

  1205.     elif action == ENGINE_CALLBACK_PATCHBAY_CONNECTION_ADDED:

  1206.         Carla.gui.PatchbayConnectionAddedCallback.emit(pluginId, value1, value2)

  1207.     elif action == ENGINE_CALLBACK_PATCHBAY_CONNECTION_REMOVED:

  1208.         Carla.gui.PatchbayConnectionRemovedCallback.emit(pluginId, value1, value2)

  1209.     elif action == ENGINE_CALLBACK_ENGINE_STARTED:

  1210.         Carla.gui.EngineStartedCallback.emit(value1, value2, valueStr)

  1211.     elif action == ENGINE_CALLBACK_ENGINE_STOPPED:

  1212.         Carla.gui.EngineStoppedCallback.emit()

  1213.     elif action == ENGINE_CALLBACK_INFO:

  1214.         Carla.gui.InfoCallback.emit(valueStr)

  1215.     elif action == ENGINE_CALLBACK_ERROR:

  1216.         Carla.gui.ErrorCallback.emit(valueStr)

  1217.     elif action == ENGINE_CALLBACK_QUIT:

  1218.         Carla.gui.QuitCallback.emit()