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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) 2011-2014 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 (Config)

  21. 

  22. from carla_config import *

  23. 

  24. # ------------------------------------------------------------------------------------------------------------

  25. # Imports (Global)

  26. 

  27. if config_UseQt5:

  28.     from PyQt5.QtCore import qCritical, QFileInfo, QModelIndex, QTimer

  29.     from PyQt5.QtGui import QPalette

  30.     from PyQt5.QtWidgets import QAction, QApplication, QFileSystemModel, QListWidgetItem, QMainWindow

  31. else:

  32.     from PyQt4.QtCore import qCritical, QFileInfo, QModelIndex, QTimer

  33.     from PyQt4.QtGui import QApplication, QFileSystemModel, QListWidgetItem, QMainWindow, QPalette

  34. 

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

  36. # Imports (Custom)

  37. 

  38. import ui_carla_host

  39. 

  40. from carla_app import *

  41. from carla_database import *

  42. from carla_settings import *

  43. from carla_widgets import *

  44. 

  45. # ------------------------------------------------------------------------------------------------------------

  46. # PatchCanvas defines

  47. 

  48. CANVAS_ANTIALIASING_SMALL = 1

  49. CANVAS_EYECANDY_SMALL     = 1

  50. 

  51. # ------------------------------------------------------------------------------------------------------------

  52. # Session Management support

  53. 

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

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

  56. 

  57. # ------------------------------------------------------------------------------------------------------------

  58. # Dummy widget

  59. 

  60. class HostWidgetMeta(object):

  61. #class HostWidgetMeta(metaclass=ABCMeta):

  62. 

  63.     # --------------------------------------------------------------------------------------------------------

  64. 

  65.     def removeAllPlugins(self):

  66.         raise NotImplementedError

  67. 

  68.     def engineStarted(self):

  69.         raise NotImplementedError

  70. 

  71.     def engineStopped(self):

  72.         raise NotImplementedError

  73. 

  74.     def idleFast(self):

  75.         raise NotImplementedError

  76. 

  77.     def idleSlow(self):

  78.         raise NotImplementedError

  79. 

  80.     def projectLoadingStarted(self):

  81.         raise NotImplementedError

  82. 

  83.     def projectLoadingFinished(self):

  84.         raise NotImplementedError

  85. 

  86.     def saveSettings(self, settings):

  87.         raise NotImplementedError

  88. 

  89.     def showEditDialog(self, pluginId):

  90.         raise NotImplementedError

  91. 

  92. # ------------------------------------------------------------------------------------------------------------

  93. # Host Window

  94. 

  95. class HostWindow(QMainWindow):

  96.     # signals

  97.     SIGTERM = pyqtSignal()

  98.     SIGUSR1 = pyqtSignal()

  99. 

  100.     # --------------------------------------------------------------------------------------------------------

  101. 

  102.     def __init__(self, host):

  103.         QMainWindow.__init__(self)

  104.         self.host = host

  105.         self.ui = ui_carla_host.Ui_CarlaHostW()

  106.         self.ui.setupUi(self)

  107. 

  108.         if False:

  109.             # kdevelop likes this :)

  110.             host = CarlaHostMeta()

  111.             self.host = host

  112.             self.fContainer = HostWidgetMeta(self, host)

  113.             gCarla.gui = self

  114. 

  115.         # ----------------------------------------------------------------------------------------------------

  116.         # Internal stuff

  117. 

  118.         self.fSampleRate = 0.0

  119. 

  120.         self.fIdleTimerFast = 0

  121.         self.fIdleTimerSlow = 0

  122. 

  123.         self.fLadspaRdfNeedsUpdate = True

  124.         self.fLadspaRdfList = []

  125. 

  126.         self.fLastTransportFrame = 0

  127.         self.fLastTransportState = False

  128.         self.fTransportText = ""

  129. 

  130.         self.fProjectFilename = ""

  131.         self.fIsProjectLoading = False

  132. 

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

  134.         self.fFirstEngineInit = True

  135. 

  136.         # to be filled with key-value pairs of current settings

  137.         self.fSavedSettings = {}

  138. 

  139.         if host.isPlugin:

  140.             self.fClientName         = "Carla-Plugin"

  141.             self.fSessionManagerName = "Plugin"

  142.         elif LADISH_APP_NAME:

  143.             self.fClientName         = LADISH_APP_NAME

  144.             self.fSessionManagerName = "LADISH"

  145.         elif NSM_URL:

  146.             self.fClientName         = "Carla" # "Carla.tmp"

  147.             self.fSessionManagerName = "Non Session Manager"

  148.         else:

  149.             self.fClientName         = "Carla"

  150.             self.fSessionManagerName = ""

  151. 

  152.         # ----------------------------------------------------------------------------------------------------

  153.         # Set up GUI (engine stopped)

  154. 

  155.         if self.host.isPlugin:

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

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

  158.         else:

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

  160. 

  161.         if self.fSessionManagerName:

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

  163. 

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

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

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

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

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

  169. 

  170.         self.ui.act_canvas_show_internal.setChecked(True)

  171.         self.ui.act_canvas_show_external.setChecked(False)

  172. 

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

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

  175. 

  176.         self.ui.dockWidgetTitleBar = QWidget(self)

  177.         self.ui.dockWidget.setTitleBarWidget(self.ui.dockWidgetTitleBar)

  178. 

  179.         self.setTransportMenuEnabled(False)

  180. 

  181.         # ----------------------------------------------------------------------------------------------------

  182.         # Set up GUI (disk)

  183. 

  184.         self.fDirModel = QFileSystemModel(self)

  185.         self.fDirModel.setRootPath(HOME)

  186.         self.fDirModel.setNameFilters(host.get_supported_file_extensions().split(";"))

  187. 

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

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

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

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

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

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

  194. 

  195.         # ----------------------------------------------------------------------------------------------------

  196.         # Set up GUI (special stuff for Mac OS)

  197. 

  198.         if MACOS and config_UseQt5:

  199.             self.ui.act_file_quit.setMenuRole(QAction.QuitRole)

  200.             self.ui.act_settings_configure.setMenuRole(QAction.PreferencesRole)

  201.             self.ui.act_help_about.setMenuRole(QAction.AboutRole)

  202.             self.ui.act_help_about_juce.setMenuRole(QAction.AboutRole)

  203.             self.ui.act_help_about_qt.setMenuRole(QAction.AboutQtRole)

  204.             self.ui.menu_Settings.setTitle("Panels")

  205.             #self.ui.menu_Help.hide()

  206. 

  207.         # ----------------------------------------------------------------------------------------------------

  208.         # Load Settings

  209. 

  210.         self.loadSettings(True)

  211. 

  212.         # ----------------------------------------------------------------------------------------------------

  213.         # Connect actions to functions

  214. 

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

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

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

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

  219. 

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

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

  222. 

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

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

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

  226. 

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

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

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

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

  231. 

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

  233.         self.ui.act_help_about_juce.triggered.connect(self.slot_aboutJuce)

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

  235. 

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

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

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

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

  240. 

  241.         self.SIGUSR1.connect(self.slot_handleSIGUSR1)

  242.         self.SIGTERM.connect(self.slot_handleSIGTERM)

  243. 

  244.         host.EngineStartedCallback.connect(self.slot_handleEngineStartedCallback)

  245.         host.EngineStoppedCallback.connect(self.slot_handleEngineStoppedCallback)

  246.         host.SampleRateChangedCallback.connect(self.slot_handleSampleRateChangedCallback)

  247. 

  248.         host.PluginAddedCallback.connect(self.slot_handlePluginAddedCallback)

  249.         host.PluginRemovedCallback.connect(self.slot_handlePluginRemovedCallback)

  250. 

  251.         host.DebugCallback.connect(self.slot_handleDebugCallback)

  252.         host.InfoCallback.connect(self.slot_handleInfoCallback)

  253.         host.ErrorCallback.connect(self.slot_handleErrorCallback)

  254.         host.QuitCallback.connect(self.slot_handleQuitCallback)

  255. 

  256.         # ----------------------------------------------------------------------------------------------------

  257.         # Final setup

  258. 

  259.         self.setProperWindowTitle()

  260. 

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

  262. 

  263.     # --------------------------------------------------------------------------------------------------------

  264. 

  265.     def setProperWindowTitle(self):

  266.         title = self.fClientName

  267. 

  268.         if self.fProjectFilename:

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

  270.         if self.fSessionManagerName:

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

  272. 

  273.         self.setWindowTitle(title)

  274. 

  275.     # --------------------------------------------------------------------------------------------------------

  276.     # Called by containers

  277. 

  278.     def isProjectLoading(self):

  279.         return self.fIsProjectLoading

  280. 

  281.     def getSavedSettings(self):

  282.         return self.fSavedSettings

  283. 

  284.     def setLoadRDFsNeeded(self):

  285.         self.fLadspaRdfNeedsUpdate = True

  286. 

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

  288.         dialog = CarlaSettingsW(self, self.host, hasCanvas, hasCanvasGL)

  289.         return dialog.exec_()

  290. 

  291.     def setupContainer(self, showCanvas, canvasThemeData = []):

  292.         if showCanvas:

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

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

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

  296.         else:

  297.             self.ui.act_canvas_show_internal.setEnabled(False)

  298.             self.ui.act_canvas_show_external.setEnabled(False)

  299.             self.ui.act_canvas_arrange.setVisible(False)

  300.             self.ui.act_canvas_print.setVisible(False)

  301.             self.ui.act_canvas_refresh.setVisible(False)

  302.             self.ui.act_canvas_save_image.setVisible(False)

  303.             self.ui.act_canvas_zoom_100.setVisible(False)

  304.             self.ui.act_canvas_zoom_fit.setVisible(False)

  305.             self.ui.act_canvas_zoom_in.setVisible(False)

  306.             self.ui.act_canvas_zoom_out.setVisible(False)

  307.             self.ui.act_settings_show_meters.setVisible(False)

  308.             self.ui.act_settings_show_keyboard.setVisible(False)

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

  310.             self.ui.menu_Canvas.setVisible(False)

  311.             self.ui.menu_Canvas_Zoom.setEnabled(False)

  312.             self.ui.menu_Canvas_Zoom.setVisible(False)

  313.             self.ui.miniCanvasPreview.hide()

  314. 

  315.         self.setCentralWidget(self.fContainer)

  316.         self.ui.centralwidget = self.fContainer

  317. 

  318.     def updateContainer(self, canvasThemeData):

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

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

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

  322. 

  323.     # --------------------------------------------------------------------------------------------------------

  324.     # Called by the signal handler

  325. 

  326.     @pyqtSlot()

  327.     def slot_handleSIGUSR1(self):

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

  329.         self.slot_fileSave()

  330. 

  331.     @pyqtSlot()

  332.     def slot_handleSIGTERM(self):

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

  334.         self.close()

  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.fContainer.projectLoadingStarted()

  344.         self.fIsProjectLoading = True

  345. 

  346.         self.host.load_project(self.fProjectFilename)

  347. 

  348.         self.fIsProjectLoading = False

  349.         self.fContainer.projectLoadingFinished()

  350. 

  351.     def loadProjectLater(self, filename):

  352.         self.fProjectFilename = QFileInfo(filename).absoluteFilePath()

  353.         self.setProperWindowTitle()

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

  355. 

  356.     def saveProjectNow(self):

  357.         if not self.fProjectFilename:

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

  359. 

  360.         self.host.save_project(self.fProjectFilename)

  361. 

  362.     # --------------------------------------------------------------------------------------------------------

  363. 

  364.     @pyqtSlot()

  365.     def slot_fileNew(self):

  366.         self.fContainer.removeAllPlugins()

  367.         self.fProjectFilename = ""

  368.         self.setProperWindowTitle()

  369. 

  370.     @pyqtSlot()

  371.     def slot_fileOpen(self):

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

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

  374. 

  375.         if config_UseQt5:

  376.             filename = filename[0]

  377.         if not filename:

  378.             return

  379. 

  380.         newFile = True

  381. 

  382.         if self.host.get_current_plugin_count() > 0:

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

  384.                                                                           QMessageBox.Yes | QMessageBox.No, QMessageBox.No)

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

  386. 

  387.         if newFile:

  388.             self.fContainer.removeAllPlugins()

  389.             self.fProjectFilename = filename

  390.             self.setProperWindowTitle()

  391.             self.loadProjectNow()

  392.         else:

  393.             filenameOld = self.fProjectFilename

  394.             self.fProjectFilename = filename

  395.             self.loadProjectNow()

  396.             self.fProjectFilename = filenameOld

  397. 

  398.     @pyqtSlot()

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

  400.         if self.fProjectFilename and not saveAs:

  401.             return self.saveProjectNow()

  402. 

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

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

  405. 

  406.         if config_UseQt5:

  407.             filename = filename[0]

  408.         if not filename:

  409.             return

  410. 

  411.         if not filename.lower().endswith(".carxp"):

  412.             filename += ".carxp"

  413. 

  414.         if self.fProjectFilename != filename:

  415.             self.fProjectFilename = filename

  416.             self.setProperWindowTitle()

  417. 

  418.         self.saveProjectNow()

  419. 

  420.     @pyqtSlot()

  421.     def slot_fileSaveAs(self):

  422.         self.slot_fileSave(True)

  423. 

  424.     @pyqtSlot()

  425.     def slot_loadProjectNow(self):

  426.         self.loadProjectNow()

  427. 

  428.     # --------------------------------------------------------------------------------------------------------

  429.     # Internal stuff (engine)

  430. 

  431.     def setEngineSettings(self):

  432.         settings = QSettings("falkTX", "Carla2")

  433. 

  434.         # ----------------------------------------------------------------------------------------------------

  435.         # main settings

  436. 

  437.         setHostSettings(self.host)

  438. 

  439.         # ----------------------------------------------------------------------------------------------------

  440.         # plugin paths

  441. 

  442.         LADSPA_PATH = toList(settings.value(CARLA_KEY_PATHS_LADSPA, CARLA_DEFAULT_LADSPA_PATH))

  443.         DSSI_PATH   = toList(settings.value(CARLA_KEY_PATHS_DSSI,   CARLA_DEFAULT_DSSI_PATH))

  444.         LV2_PATH    = toList(settings.value(CARLA_KEY_PATHS_LV2,    CARLA_DEFAULT_LV2_PATH))

  445.         VST_PATH    = toList(settings.value(CARLA_KEY_PATHS_VST,    CARLA_DEFAULT_VST_PATH))

  446.         VST3_PATH   = toList(settings.value(CARLA_KEY_PATHS_VST3,   CARLA_DEFAULT_VST3_PATH))

  447.         AU_PATH     = toList(settings.value(CARLA_KEY_PATHS_AU,     CARLA_DEFAULT_AU_PATH))

  448.         GIG_PATH    = toList(settings.value(CARLA_KEY_PATHS_GIG,    CARLA_DEFAULT_GIG_PATH))

  449.         SF2_PATH    = toList(settings.value(CARLA_KEY_PATHS_SF2,    CARLA_DEFAULT_SF2_PATH))

  450.         SFZ_PATH    = toList(settings.value(CARLA_KEY_PATHS_SFZ,    CARLA_DEFAULT_SFZ_PATH))

  451. 

  452.         self.host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_LADSPA, splitter.join(LADSPA_PATH))

  453.         self.host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_DSSI,   splitter.join(DSSI_PATH))

  454.         self.host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_LV2,    splitter.join(LV2_PATH))

  455.         self.host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_VST,    splitter.join(VST_PATH))

  456.         self.host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_VST3,   splitter.join(VST3_PATH))

  457.         self.host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_AU,     splitter.join(AU_PATH))

  458.         self.host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_GIG,    splitter.join(GIG_PATH))

  459.         self.host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_SF2,    splitter.join(SF2_PATH))

  460.         self.host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_SFZ,    splitter.join(SFZ_PATH))

  461. 

  462.         # ----------------------------------------------------------------------------------------------------

  463.         # don't continue if plugin

  464. 

  465.         if self.host.isPlugin:

  466.             return "Plugin"

  467. 

  468.         # ----------------------------------------------------------------------------------------------------

  469.         # driver and device settings

  470. 

  471.         # driver name

  472.         try:

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

  474.         except:

  475.             audioDriver = CARLA_DEFAULT_AUDIO_DRIVER

  476. 

  477.         # driver options

  478.         try:

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

  480.         except:

  481.             audioDevice = ""

  482. 

  483.         try:

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

  485.         except:

  486.             audioNumPeriods = CARLA_DEFAULT_AUDIO_NUM_PERIODS

  487. 

  488.         try:

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

  490.         except:

  491.             audioBufferSize = CARLA_DEFAULT_AUDIO_BUFFER_SIZE

  492. 

  493.         try:

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

  495.         except:

  496.             audioSampleRate = CARLA_DEFAULT_AUDIO_SAMPLE_RATE

  497. 

  498.         self.host.set_engine_option(ENGINE_OPTION_AUDIO_DEVICE,      0,               audioDevice)

  499.         self.host.set_engine_option(ENGINE_OPTION_AUDIO_NUM_PERIODS, audioNumPeriods, "")

  500.         self.host.set_engine_option(ENGINE_OPTION_AUDIO_BUFFER_SIZE, audioBufferSize, "")

  501.         self.host.set_engine_option(ENGINE_OPTION_AUDIO_SAMPLE_RATE, audioSampleRate, "")

  502. 

  503.         # ----------------------------------------------------------------------------------------------------

  504.         # fix things if needed

  505. 

  506.         if audioDriver != "JACK" and self.host.transportMode == ENGINE_TRANSPORT_MODE_JACK:

  507.             self.host.set_engine_option(ENGINE_OPTION_TRANSPORT_MODE, ENGINE_TRANSPORT_MODE_INTERNAL, "")

  508. 

  509.         # ----------------------------------------------------------------------------------------------------

  510.         # return selected driver name

  511. 

  512.         return audioDriver

  513. 

  514.     # --------------------------------------------------------------------------------------------------------

  515. 

  516.     @pyqtSlot()

  517.     def slot_engineStart(self):

  518.         audioDriver = self.setEngineSettings()

  519. 

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

  521.             if self.fFirstEngineInit:

  522.                 self.fFirstEngineInit = False

  523.                 return

  524. 

  525.             audioError = self.host.get_last_error()

  526. 

  527.             if audioError:

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

  529.             else:

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

  531.             return

  532. 

  533.         self.fFirstEngineInit = False

  534. 

  535.     @pyqtSlot()

  536.     def slot_engineStop(self):

  537.         if self.host.get_current_plugin_count() > 0:

  538.             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"

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

  540.                                                                          QMessageBox.Yes | QMessageBox.No, QMessageBox.No)

  541.             if ask != QMessageBox.Yes:

  542.                 return

  543. 

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

  545.             self.fContainer.removeAllPlugins()

  546. 

  547.         if self.host.is_engine_running() and not self.host.engine_close():

  548.             print(self.host.get_last_error())

  549. 

  550.     # --------------------------------------------------------------------------------------------------------

  551. 

  552.     @pyqtSlot(str)

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

  554.         self.fSampleRate = self.host.get_sample_rate()

  555. 

  556.         check = self.host.is_engine_running()

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

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

  559. 

  560.         if not self.host.isPlugin:

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

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

  563. 

  564.             if not self.fSessionManagerName:

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

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

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

  568. 

  569.             self.setTransportMenuEnabled(check)

  570. 

  571.         if check:

  572.             self.fLastTransportFrame = 0

  573.             self.fLastTransportState = False

  574.             self.refreshTransport(True)

  575.             self.fContainer.engineStarted()

  576. 

  577.         self.startTimers()

  578. 

  579.     @pyqtSlot()

  580.     def slot_handleEngineStoppedCallback(self):

  581.         self.killTimers()

  582. 

  583.         # just in case

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

  585.         self.fContainer.removeAllPlugins()

  586. 

  587.         check = self.host.is_engine_running()

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

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

  590. 

  591.         if not self.host.isPlugin:

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

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

  594. 

  595.             if not self.fSessionManagerName:

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

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

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

  599. 

  600.             self.setTransportMenuEnabled(check)

  601. 

  602.         if not check:

  603.             self.fTextTransport = ""

  604.             self.fContainer.engineStopped()

  605. 

  606.         self.fSampleRate = 0.0

  607. 

  608.     @pyqtSlot(float)

  609.     def slot_handleSampleRateChangedCallback(self, newSampleRate):

  610.         self.fSampleRate = newSampleRate

  611.         self.refreshTransport(True)

  612. 

  613.     # --------------------------------------------------------------------------------------------------------

  614.     # Internal stuff (plugins)

  615. 

  616.     @pyqtSlot()

  617.     def slot_pluginAdd(self, pluginToReplace = -1):

  618.         dialog = PluginDatabaseW(self, self.host)

  619. 

  620.         if not dialog.exec_():

  621.             return

  622. 

  623.         if not self.host.is_engine_running():

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

  625.             return

  626. 

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

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

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

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

  631.         uniqueId = dialog.fRetPlugin['uniqueId']

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

  633. 

  634.         if pluginToReplace >= 0:

  635.             if not self.host.replace_plugin(pluginToReplace):

  636.                 CustomMessageBox(self, QMessageBox.Critical, self.tr("Error"), self.tr("Failed to replace plugin"), self.host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  637.                 return

  638. 

  639.         ok = self.host.add_plugin(btype, ptype, filename, None, label, uniqueId, extraPtr)

  640. 

  641.         if pluginToReplace >= 0:

  642.             self.host.replace_plugin(self.host.get_max_plugin_number())

  643. 

  644.         if not ok:

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

  646. 

  647.     @pyqtSlot()

  648.     def slot_pluginRemoveAll(self):

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

  650. 

  651.         count = self.host.get_current_plugin_count()

  652. 

  653.         if count == 0:

  654.             return

  655. 

  656.         self.fContainer.projectLoadingStarted()

  657. 

  658.         app = QApplication.instance()

  659.         for i in range(count):

  660.             app.processEvents()

  661.             self.host.remove_plugin(count-i-1)

  662. 

  663.         self.fContainer.projectLoadingFinished()

  664. 

  665.         #self.fContainer.removeAllPlugins()

  666.         #self.host.remove_all_plugins()

  667. 

  668.     # --------------------------------------------------------------------------------------------------------

  669. 

  670.     @pyqtSlot(int, str)

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

  672.         self.ui.act_plugin_remove_all.setEnabled(self.host.get_current_plugin_count() > 0)

  673. 

  674.     @pyqtSlot(int)

  675.     def slot_handlePluginRemovedCallback(self, pluginId):

  676.         self.ui.act_plugin_remove_all.setEnabled(self.host.get_current_plugin_count() > 0)

  677. 

  678.     # --------------------------------------------------------------------------------------------------------

  679.     # Internal stuff (plugin data)

  680. 

  681.     def getExtraPtr(self, plugin):

  682.         ptype = plugin['type']

  683. 

  684.         if ptype == PLUGIN_LADSPA:

  685.             uniqueId = plugin['uniqueId']

  686. 

  687.             self.maybeLoadRDFs()

  688. 

  689.             for rdfItem in self.fLadspaRdfList:

  690.                 if rdfItem.UniqueID == uniqueId:

  691.                     return pointer(rdfItem)

  692. 

  693.         elif ptype in (PLUGIN_GIG, PLUGIN_SF2):

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

  695.                 global _true

  696.                 _true = c_char_p("true".encode("utf-8"))

  697.                 return _true

  698. 

  699.         return None

  700. 

  701.     def maybeLoadRDFs(self):

  702.         if not self.fLadspaRdfNeedsUpdate:

  703.             return

  704. 

  705.         self.fLadspaRdfNeedsUpdate = False

  706.         self.fLadspaRdfList = []

  707. 

  708.         if not haveLRDF:

  709.             return

  710. 

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

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

  713. 

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

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

  716. 

  717.             try:

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

  719.             except:

  720.                 pass

  721. 

  722.             frLadspa.close()

  723. 

  724.     # --------------------------------------------------------------------------------------------------------

  725.     # Internal stuff (timers)

  726. 

  727.     def startTimers(self):

  728.         if self.fIdleTimerFast == 0:

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

  730. 

  731.         if self.fIdleTimerSlow == 0:

  732.             self.fIdleTimerSlow = self.startTimer(self.fSavedSettings[CARLA_KEY_MAIN_REFRESH_INTERVAL]*4)

  733. 

  734.     def restartTimersIfNeeded(self):

  735.         if self.fIdleTimerFast != 0:

  736.             self.killTimer(self.fIdleTimerFast)

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

  738. 

  739.         if self.fIdleTimerSlow != 0:

  740.             self.killTimer(self.fIdleTimerSlow)

  741.             self.fIdleTimerSlow = self.startTimer(self.fSavedSettings[CARLA_KEY_MAIN_REFRESH_INTERVAL]*4)

  742. 

  743.     def killTimers(self):

  744.         if self.fIdleTimerFast != 0:

  745.             self.killTimer(self.fIdleTimerFast)

  746.             self.fIdleTimerFast = 0

  747. 

  748.         if self.fIdleTimerSlow != 0:

  749.             self.killTimer(self.fIdleTimerSlow)

  750.             self.fIdleTimerSlow = 0

  751. 

  752.     # --------------------------------------------------------------------------------------------------------

  753.     # Internal stuff (transport)

  754. 

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

  756.         if self.fSampleRate == 0.0 or not self.host.is_engine_running():

  757.             return

  758. 

  759.         timeInfo = self.host.get_transport_info()

  760.         playing  = timeInfo['playing']

  761.         frame    = timeInfo['frame']

  762. 

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

  764.             if playing:

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

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

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

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

  769.             else:

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

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

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

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

  774. 

  775.             self.fLastTransportState = playing

  776. 

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

  778.             time = frame / self.fSampleRate

  779.             secs = time % 60

  780.             mins = (time / 60) % 60

  781.             hrs  = (time / 3600) % 60

  782. 

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

  784.             self.fLastTransportFrame = frame

  785. 

  786.     def setTransportMenuEnabled(self, enabled):

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

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

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

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

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

  792. 

  793.     @pyqtSlot(bool)

  794.     def slot_transportPlayPause(self, toggled):

  795.         if not self.host.is_engine_running():

  796.             return

  797. 

  798.         if toggled:

  799.             self.host.transport_play()

  800.         else:

  801.             self.host.transport_pause()

  802. 

  803.         self.refreshTransport()

  804. 

  805.     @pyqtSlot()

  806.     def slot_transportStop(self):

  807.         if not self.host.is_engine_running():

  808.             return

  809. 

  810.         self.host.transport_pause()

  811.         self.host.transport_relocate(0)

  812. 

  813.         self.refreshTransport()

  814. 

  815.     @pyqtSlot()

  816.     def slot_transportBackwards(self):

  817.         if not self.host.is_engine_running():

  818.             return

  819. 

  820.         newFrame = self.host.get_current_transport_frame() - 100000

  821. 

  822.         if newFrame < 0:

  823.             newFrame = 0

  824. 

  825.         self.host.transport_relocate(newFrame)

  826. 

  827.     @pyqtSlot()

  828.     def slot_transportForwards(self):

  829.         if not self.host.is_engine_running():

  830.             return

  831. 

  832.         newFrame = self.host.get_current_transport_frame() + 100000

  833.         self.host.transport_relocate(newFrame)

  834. 

  835.     # -----------------------------------------------------------------

  836.     # Internal stuff (settings)

  837. 

  838.     def loadSettings(self, firstTime):

  839.         settings = QSettings()

  840. 

  841.         if firstTime:

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

  843. 

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

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

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

  847. 

  848.             #if settings.contains("SplitterState"):

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

  850.             #else:

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

  852. 

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

  854. 

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

  856. 

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

  858.                 if i == 0: continue

  859.                 folder = diskFolders[i]

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

  861. 

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

  863.             #    self.setUnifiedTitleAndToolBarOnMac(True)

  864. 

  865.         # ---------------------------------------------

  866. 

  867.         # TODO

  868. 

  869.         self.fSavedSettings = {

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

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

  872.             CARLA_KEY_MAIN_USE_CUSTOM_SKINS:   settings.value(CARLA_KEY_MAIN_USE_CUSTOM_SKINS,   CARLA_DEFAULT_MAIN_USE_CUSTOM_SKINS,   type=bool),

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

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

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

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

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

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

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

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

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

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

  883.         }

  884. 

  885.         # ---------------------------------------------

  886. 

  887.         self.setEngineSettings()

  888. 

  889.         self.restartTimersIfNeeded()

  890. 

  891.         # ---------------------------------------------

  892. 

  893.     def saveSettings(self):

  894.         settings = QSettings()

  895. 

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

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

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

  899. 

  900.         diskFolders = []

  901. 

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

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

  904. 

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

  906. 

  907.         self.fContainer.saveSettings(settings)

  908. 

  909.     # -----------------------------------------------------------------

  910.     # Internal stuff (gui)

  911. 

  912.     @pyqtSlot()

  913.     def slot_aboutCarla(self):

  914.         CarlaAboutW(self, self.host).exec_()

  915. 

  916.     @pyqtSlot()

  917.     def slot_aboutJuce(self):

  918.         JuceAboutW(self, self.host).exec_()

  919. 

  920.     @pyqtSlot()

  921.     def slot_aboutQt(self):

  922.         QApplication.instance().aboutQt()

  923. 

  924.     # -----------------------------------------------------------------

  925. 

  926.     @pyqtSlot(int)

  927.     def slot_diskFolderChanged(self, index):

  928.         if index < 0:

  929.             return

  930.         elif index == 0:

  931.             filename = HOME

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

  933.         else:

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

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

  936. 

  937.         self.fDirModel.setRootPath(filename)

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

  939. 

  940.     @pyqtSlot()

  941.     def slot_diskFolderAdd(self):

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

  943. 

  944.         if newPath:

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

  946.                 newPath = newPath[:-1]

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

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

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

  950. 

  951.     @pyqtSlot()

  952.     def slot_diskFolderRemove(self):

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

  954. 

  955.         if index <= 0:

  956.             return

  957. 

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

  959. 

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

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

  962. 

  963.     @pyqtSlot(QModelIndex)

  964.     def slot_fileTreeDoubleClicked(self, modelIndex):

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

  966. 

  967.         if not self.host.load_file(filename):

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

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

  970.                              self.host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  971. 

  972.     # -----------------------------------------------------------------

  973. 

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

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

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

  977. 

  978.     @pyqtSlot(str)

  979.     def slot_handleInfoCallback(self, info):

  980.         QMessageBox.information(self, "Information", info)

  981. 

  982.     @pyqtSlot(str)

  983.     def slot_handleErrorCallback(self, error):

  984.         QMessageBox.critical(self, "Error", error)

  985. 

  986.     @pyqtSlot()

  987.     def slot_handleQuitCallback(self):

  988.         pass # TODO

  989. 

  990.     # -----------------------------------------------------------------

  991. 

  992.     def showEvent(self, event):

  993.         QMainWindow.showEvent(self, event)

  994. 

  995.         # set our gui as parent for all plugins UIs

  996.         winIdStr = "%x" % self.winId()

  997.         self.host.set_engine_option(ENGINE_OPTION_FRONTEND_WIN_ID, 0, winIdStr)

  998. 

  999.     def hideEvent(self, event):

  1000.         # disable parent

  1001.         self.host.set_engine_option(ENGINE_OPTION_FRONTEND_WIN_ID, 0, "0")

  1002. 

  1003.         QMainWindow.hideEvent(self, event)

  1004. 

  1005.     # -----------------------------------------------------------------

  1006. 

  1007.     def timerEvent(self, event):

  1008.         if event.timerId() == self.fIdleTimerFast:

  1009.             #if not self.host.isPlugin:

  1010.             self.fContainer.idleFast()

  1011.             self.refreshTransport()

  1012.             self.host.engine_idle()

  1013. 

  1014.         elif event.timerId() == self.fIdleTimerSlow:

  1015.             self.fContainer.idleSlow()

  1016. 

  1017.         QMainWindow.timerEvent(self, event)

  1018. 

  1019.     def closeEvent(self, event):

  1020.         self.killTimers()

  1021.         self.saveSettings()

  1022. 

  1023.         if self.host.isPlugin:

  1024.             pass

  1025. 

  1026.         elif self.host.is_engine_running():

  1027.             self.host.set_engine_about_to_close()

  1028. 

  1029.             count = self.host.get_current_plugin_count()

  1030. 

  1031.             if count > 0:

  1032.                 # simulate project loading, to disable container

  1033.                 self.ui.act_plugin_remove_all.setEnabled(False)

  1034.                 self.fContainer.projectLoadingStarted()

  1035. 

  1036.                 app = QApplication.instance()

  1037.                 for i in range(count):

  1038.                     app.processEvents()

  1039.                     self.host.remove_plugin(count-i-1)

  1040. 

  1041.                 app.processEvents()

  1042. 

  1043.                 #self.fContainer.removeAllPlugins()

  1044.                 #self.host.remove_all_plugins()

  1045. 

  1046.             self.slot_engineStop()

  1047. 

  1048.         QMainWindow.closeEvent(self, event)

  1049. 

  1050. # ------------------------------------------------------------------------------------------------------------

  1051. # Engine callback

  1052. 

  1053. def engineCallback(host, action, pluginId, value1, value2, value3, valueStr):

  1054.     # kdevelop likes this :)

  1055.     if False: host = CarlaHostMeta()

  1056. 

  1057.     # FIXME

  1058.     if host is None: host = gCarla.gui.host

  1059. 

  1060.     if action == ENGINE_CALLBACK_ENGINE_STARTED:

  1061.         host.processMode   = value1

  1062.         host.transportMode = value2

  1063.     elif action == ENGINE_CALLBACK_PROCESS_MODE_CHANGED:

  1064.         host.processMode   = value1

  1065.     elif action == ENGINE_CALLBACK_TRANSPORT_MODE_CHANGED:

  1066.         host.transportMode = value1

  1067. 

  1068.     valueStr = charPtrToString(valueStr)

  1069. 

  1070.     if action == ENGINE_CALLBACK_DEBUG:

  1071.         host.DebugCallback.emit(pluginId, value1, value2, value3, valueStr)

  1072.     elif action == ENGINE_CALLBACK_PLUGIN_ADDED:

  1073.         host.PluginAddedCallback.emit(pluginId, valueStr)

  1074.     elif action == ENGINE_CALLBACK_PLUGIN_REMOVED:

  1075.         host.PluginRemovedCallback.emit(pluginId)

  1076.     elif action == ENGINE_CALLBACK_PLUGIN_RENAMED:

  1077.         host.PluginRenamedCallback.emit(pluginId, valueStr)

  1078.     elif action == ENGINE_CALLBACK_PLUGIN_UNAVAILABLE:

  1079.         host.PluginUnavailableCallback.emit(pluginId, valueStr)

  1080.     elif action == ENGINE_CALLBACK_PARAMETER_VALUE_CHANGED:

  1081.         host.ParameterValueChangedCallback.emit(pluginId, value1, value3)

  1082.     elif action == ENGINE_CALLBACK_PARAMETER_DEFAULT_CHANGED:

  1083.         host.ParameterDefaultChangedCallback.emit(pluginId, value1, value3)

  1084.     elif action == ENGINE_CALLBACK_PARAMETER_MIDI_CC_CHANGED:

  1085.         host.ParameterMidiCcChangedCallback.emit(pluginId, value1, value2)

  1086.     elif action == ENGINE_CALLBACK_PARAMETER_MIDI_CHANNEL_CHANGED:

  1087.         host.ParameterMidiChannelChangedCallback.emit(pluginId, value1, value2)

  1088.     elif action == ENGINE_CALLBACK_PROGRAM_CHANGED:

  1089.         host.ProgramChangedCallback.emit(pluginId, value1)

  1090.     elif action == ENGINE_CALLBACK_MIDI_PROGRAM_CHANGED:

  1091.         host.MidiProgramChangedCallback.emit(pluginId, value1)

  1092.     elif action == ENGINE_CALLBACK_OPTION_CHANGED:

  1093.         host.OptionChangedCallback.emit(pluginId, value1, bool(value2))

  1094.     elif action == ENGINE_CALLBACK_UI_STATE_CHANGED:

  1095.         host.UiStateChangedCallback.emit(pluginId, value1)

  1096.     elif action == ENGINE_CALLBACK_NOTE_ON:

  1097.         host.NoteOnCallback.emit(pluginId, value1, value2, int(value3))

  1098.     elif action == ENGINE_CALLBACK_NOTE_OFF:

  1099.         host.NoteOffCallback.emit(pluginId, value1, value2)

  1100.     elif action == ENGINE_CALLBACK_UPDATE:

  1101.         host.UpdateCallback.emit(pluginId)

  1102.     elif action == ENGINE_CALLBACK_RELOAD_INFO:

  1103.         host.ReloadInfoCallback.emit(pluginId)

  1104.     elif action == ENGINE_CALLBACK_RELOAD_PARAMETERS:

  1105.         host.ReloadParametersCallback.emit(pluginId)

  1106.     elif action == ENGINE_CALLBACK_RELOAD_PROGRAMS:

  1107.         host.ReloadProgramsCallback.emit(pluginId)

  1108.     elif action == ENGINE_CALLBACK_RELOAD_ALL:

  1109.         host.ReloadAllCallback.emit(pluginId)

  1110.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_ADDED:

  1111.         host.PatchbayClientAddedCallback.emit(pluginId, value1, value2, valueStr)

  1112.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_REMOVED:

  1113.         host.PatchbayClientRemovedCallback.emit(pluginId)

  1114.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_RENAMED:

  1115.         host.PatchbayClientRenamedCallback.emit(pluginId, valueStr)

  1116.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_DATA_CHANGED:

  1117.         host.PatchbayClientDataChangedCallback.emit(pluginId, value1, value2)

  1118.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_ADDED:

  1119.         host.PatchbayPortAddedCallback.emit(pluginId, value1, value2, valueStr)

  1120.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_REMOVED:

  1121.         host.PatchbayPortRemovedCallback.emit(pluginId, value1)

  1122.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_RENAMED:

  1123.         host.PatchbayPortRenamedCallback.emit(pluginId, value1, valueStr)

  1124.     elif action == ENGINE_CALLBACK_PATCHBAY_CONNECTION_ADDED:

  1125.         gOut, pOut, gIn, pIn = [int(i) for i in valueStr.split(":")] # FIXME

  1126.         host.PatchbayConnectionAddedCallback.emit(pluginId, gOut, pOut, gIn, pIn)

  1127.     elif action == ENGINE_CALLBACK_PATCHBAY_CONNECTION_REMOVED:

  1128.         host.PatchbayConnectionRemovedCallback.emit(pluginId, value1, value2)

  1129.     elif action == ENGINE_CALLBACK_ENGINE_STARTED:

  1130.         host.EngineStartedCallback.emit(value1, value2, valueStr)

  1131.     elif action == ENGINE_CALLBACK_ENGINE_STOPPED:

  1132.         host.EngineStoppedCallback.emit()

  1133.     elif action == ENGINE_CALLBACK_PROCESS_MODE_CHANGED:

  1134.         host.ProcessModeChangedCallback.emit(value1)

  1135.     elif action == ENGINE_CALLBACK_TRANSPORT_MODE_CHANGED:

  1136.         host.TransportModeChangedCallback.emit(value1)

  1137.     elif action == ENGINE_CALLBACK_BUFFER_SIZE_CHANGED:

  1138.         host.BufferSizeChangedCallback.emit(value1)

  1139.     elif action == ENGINE_CALLBACK_SAMPLE_RATE_CHANGED:

  1140.         host.SampleRateChangedCallback.emit(value3)

  1141.     elif action == ENGINE_CALLBACK_IDLE:

  1142.         QApplication.instance().processEvents()

  1143.     elif action == ENGINE_CALLBACK_INFO:

  1144.         host.InfoCallback.emit(valueStr)

  1145.     elif action == ENGINE_CALLBACK_ERROR:

  1146.         host.ErrorCallback.emit(valueStr)

  1147.     elif action == ENGINE_CALLBACK_QUIT:

  1148.         host.QuitCallback.emit()

  1149. 

  1150. # ------------------------------------------------------------------------------------------------------------

  1151. # File callback

  1152. 

  1153. def fileCallback(ptr, action, isDir, title, filter):

  1154.     ret = ("", "") if config_UseQt5 else ""

  1155. 

  1156.     if action == FILE_CALLBACK_DEBUG:

  1157.         pass

  1158.     elif action == FILE_CALLBACK_OPEN:

  1159.         ret = QFileDialog.getOpenFileName(gCarla.gui, charPtrToString(title), "", charPtrToString(filter) ) #, QFileDialog.ShowDirsOnly if isDir else 0x0)

  1160.     elif action == FILE_CALLBACK_SAVE:

  1161.         ret = QFileDialog.getSaveFileName(gCarla.gui, charPtrToString(title), "", charPtrToString(filter), QFileDialog.ShowDirsOnly if isDir else 0x0)

  1162. 

  1163.     if config_UseQt5:

  1164.         ret = ret[0]

  1165.     if not ret:

  1166.         return None

  1167. 

  1168.     global fileRet

  1169.     fileRet = c_char_p(ret.encode("utf-8"))

  1170.     retval  = cast(byref(fileRet), POINTER(c_uintptr))

  1171.     return retval.contents.value

  1172. 

  1173. # ------------------------------------------------------------------------------------------------------------

  1174. # Init host

  1175. 

  1176. def initHost(initName, libPrefixOrPluginClass, isControl, isPlugin, failError):

  1177.     if isPlugin:

  1178.         PluginClass = libPrefixOrPluginClass

  1179.         libPrefix   = None

  1180.     else:

  1181.         PluginClass = None

  1182.         libPrefix   = libPrefixOrPluginClass

  1183. 

  1184.     # --------------------------------------------------------------------------------------------------------

  1185.     # Set Carla library name

  1186. 

  1187.     libname = "libcarla_"

  1188. 

  1189.     if isControl:

  1190.         libname += "control2"

  1191.     else:

  1192.         libname += "standalone2"

  1193. 

  1194.     if WINDOWS:

  1195.         libname += ".dll"

  1196.     elif MACOS:

  1197.         libname += ".dylib"

  1198.     else:

  1199.         libname += ".so"

  1200. 

  1201.     # --------------------------------------------------------------------------------------------------------

  1202.     # Set binary dir

  1203. 

  1204.     CWDl = CWD.lower()

  1205. 

  1206.     # standalone, installed system-wide linux

  1207.     if libPrefix is not None:

  1208.         pathBinaries  = os.path.join(libPrefix, "lib", "carla")

  1209.         pathResources = os.path.join(libPrefix, "share", "carla", "resources")

  1210. 

  1211.     # standalone, local source

  1212.     elif CWDl.endswith("source"):

  1213.         pathBinaries  = os.path.abspath(os.path.join(CWD, "..", "bin"))

  1214.         pathResources = os.path.join(pathBinaries, "resources")

  1215. 

  1216.     # plugin

  1217.     elif CWDl.endswith("resources"):

  1218.         # installed system-wide linux

  1219.         if CWDl.endswith("/share/carla/resources"):

  1220.             pathBinaries  = os.path.abspath(os.path.join(CWD, "..", "..", "..", "lib", "carla"))

  1221.             pathResources = CWD

  1222. 

  1223.         # local source

  1224.         elif CWDl.endswith("native-plugins%sresources" % os.sep):

  1225.             pathBinaries  = os.path.abspath(os.path.join(CWD, "..", "..", "..", "..", "bin"))

  1226.             pathResources = CWD

  1227. 

  1228.         # other

  1229.         else:

  1230.             pathBinaries  = os.path.abspath(os.path.join(CWD, ".."))

  1231.             pathResources = CWD

  1232. 

  1233.     # everything else

  1234.     else:

  1235.         pathBinaries  = CWD

  1236.         pathResources = os.path.join(pathBinaries, "resources")

  1237. 

  1238.     # --------------------------------------------------------------------------------------------------------

  1239.     # Fail if binary dir is not found

  1240. 

  1241.     if not os.path.exists(pathBinaries):

  1242.         if failError:

  1243.             QMessageBox.critical(None, "Error", "Failed to find the carla binaries, cannot continue")

  1244.             sys.exit(1)

  1245.         return

  1246. 

  1247.     # --------------------------------------------------------------------------------------------------------

  1248.     # Print info

  1249. 

  1250.     print("Carla %s started, status:" % VERSION)

  1251.     print("  Python version: %s" % sys.version.split(" ",1)[0])

  1252.     print("  Qt version:     %s" % qVersion())

  1253.     print("  PyQt version:   %s" % PYQT_VERSION_STR)

  1254.     print("  Binary dir:     %s" % pathBinaries)

  1255.     print("  Resources dir:  %s" % pathResources)

  1256. 

  1257.     # --------------------------------------------------------------------------------------------------------

  1258.     # Init host

  1259. 

  1260.     if failError:

  1261.         # no try

  1262.         host = PluginClass() if isPlugin else CarlaHostDLL(os.path.join(pathBinaries, libname))

  1263.     else:

  1264.         try:

  1265.             host = PluginClass() if isPlugin else CarlaHostDLL(os.path.join(pathBinaries, libname))

  1266.         except:

  1267.             host = CarlaHostNull()

  1268. 

  1269.     host.isControl = isControl

  1270.     host.isPlugin  = isPlugin

  1271. 

  1272.     host.set_engine_callback(lambda h,a,p,v1,v2,v3,vs: engineCallback(host,a,p,v1,v2,v3,vs))

  1273.     host.set_file_callback(fileCallback)

  1274. 

  1275.     # If it's a plugin the paths are already set

  1276.     if not isPlugin:

  1277.         host.pathBinaries  = pathBinaries

  1278.         host.pathResources = pathResources

  1279.         host.set_engine_option(ENGINE_OPTION_PATH_BINARIES,  0, pathBinaries)

  1280.         host.set_engine_option(ENGINE_OPTION_PATH_RESOURCES, 0, pathResources)

  1281. 

  1282.         if not isControl:

  1283.             host.set_engine_option(ENGINE_OPTION_NSM_INIT, os.getpid(), initName)

  1284. 

  1285.     return host

  1286. 

  1287. # ------------------------------------------------------------------------------------------------------------

  1288. # Load host settings

  1289. 

  1290. def loadHostSettings(host):

  1291.     # kdevelop likes this :)

  1292.     if False: host = CarlaHostMeta()

  1293. 

  1294.     settings = QSettings("falkTX", "Carla2")

  1295. 

  1296.     # bool values

  1297.     try:

  1298.         host.forceStereo = settings.value(CARLA_KEY_ENGINE_FORCE_STEREO, CARLA_DEFAULT_FORCE_STEREO, type=bool)

  1299.     except:

  1300.         host.forceStereo = CARLA_DEFAULT_FORCE_STEREO

  1301. 

  1302.     try:

  1303.         host.preferPluginBridges = settings.value(CARLA_KEY_ENGINE_PREFER_PLUGIN_BRIDGES, CARLA_DEFAULT_PREFER_PLUGIN_BRIDGES, type=bool)

  1304.     except:

  1305.         host.preferPluginBridges = CARLA_DEFAULT_PREFER_PLUGIN_BRIDGES

  1306. 

  1307.     try:

  1308.         host.preferUiBridges = settings.value(CARLA_KEY_ENGINE_PREFER_UI_BRIDGES, CARLA_DEFAULT_PREFER_UI_BRIDGES, type=bool)

  1309.     except:

  1310.         host.preferUiBridges = CARLA_DEFAULT_PREFER_UI_BRIDGES

  1311. 

  1312.     try:

  1313.         host.uisAlwaysOnTop = settings.value(CARLA_KEY_ENGINE_UIS_ALWAYS_ON_TOP, CARLA_DEFAULT_UIS_ALWAYS_ON_TOP, type=bool)

  1314.     except:

  1315.         host.uisAlwaysOnTop = CARLA_DEFAULT_UIS_ALWAYS_ON_TOP

  1316. 

  1317.     # int values

  1318.     try:

  1319.         host.maxParameters = settings.value(CARLA_KEY_ENGINE_MAX_PARAMETERS, CARLA_DEFAULT_MAX_PARAMETERS, type=int)

  1320.     except:

  1321.         host.maxParameters = CARLA_DEFAULT_MAX_PARAMETERS

  1322. 

  1323.     try:

  1324.         host.uiBridgesTimeout = settings.value(CARLA_KEY_ENGINE_UI_BRIDGES_TIMEOUT, CARLA_DEFAULT_UI_BRIDGES_TIMEOUT, type=int)

  1325.     except:

  1326.         host.uiBridgesTimeout = CARLA_DEFAULT_UI_BRIDGES_TIMEOUT

  1327. 

  1328.     if host.isPlugin:

  1329.         return

  1330. 

  1331.     # enums

  1332.     try:

  1333.         host.transportMode = settings.value(CARLA_KEY_ENGINE_TRANSPORT_MODE, CARLA_DEFAULT_TRANSPORT_MODE, type=int)

  1334.     except:

  1335.         host.transportMode = CARLA_DEFAULT_TRANSPORT_MODE

  1336. 

  1337.     if not host.processModeForced:

  1338.         try:

  1339.             host.processMode = settings.value(CARLA_KEY_ENGINE_PROCESS_MODE, CARLA_DEFAULT_PROCESS_MODE, type=int)

  1340.         except:

  1341.             host.processMode = CARLA_DEFAULT_PROCESS_MODE

  1342. 

  1343.     # --------------------------------------------------------------------------------------------------------

  1344.     # fix things if needed

  1345. 

  1346.     if host.processMode == ENGINE_PROCESS_MODE_MULTIPLE_CLIENTS and LADISH_APP_NAME:

  1347.         print("LADISH detected but using multiple clients (not allowed), forcing single client now")

  1348.         host.processMode = ENGINE_PROCESS_MODE_SINGLE_CLIENT

  1349. 

  1350. # ------------------------------------------------------------------------------------------------------------

  1351. # Set host settings

  1352. 

  1353. def setHostSettings(host):

  1354.     # kdevelop likes this :)

  1355.     if False: host = CarlaHostMeta()

  1356. 

  1357.     host.set_engine_option(ENGINE_OPTION_FORCE_STEREO,          host.forceStereo,         "")

  1358.     host.set_engine_option(ENGINE_OPTION_PREFER_PLUGIN_BRIDGES, host.preferPluginBridges, "")

  1359.     host.set_engine_option(ENGINE_OPTION_PREFER_UI_BRIDGES,     host.preferUIBridges,     "")

  1360.     host.set_engine_option(ENGINE_OPTION_UIS_ALWAYS_ON_TOP,     host.uisAlwaysOnTop,      "")

  1361.     host.set_engine_option(ENGINE_OPTION_MAX_PARAMETERS,        host.maxParameters,       "")

  1362.     host.set_engine_option(ENGINE_OPTION_UI_BRIDGES_TIMEOUT,    host.uiBridgesTimeout,    "")

  1363. 

  1364.     if host.isPlugin:

  1365.         return

  1366. 

  1367.     host.set_engine_option(ENGINE_OPTION_PROCESS_MODE,          host.processMode,         "")

  1368.     host.set_engine_option(ENGINE_OPTION_TRANSPORT_MODE,        host.transportMode,       "")

  1369. 

  1370. # ------------------------------------------------------------------------------------------------------------