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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, parent=None):

  103.         QMainWindow.__init__(self, parent)

  104.         self.host = host

  105.         self.ui = ui_carla_host.Ui_CarlaHostW()

  106.         self.ui.setupUi(self)

  107.         gCarla.gui = self

  108. 

  109.         if False:

  110.             # kdevelop likes this :)

  111.             host = CarlaHostMeta()

  112.             self.host = host

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

  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 setupContainer(self, showCanvas, canvasThemeData = []):

  288.         if showCanvas:

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

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

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

  292.         else:

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  309.             self.ui.miniCanvasPreview.hide()

  310. 

  311.         self.setCentralWidget(self.fContainer)

  312.         self.ui.centralwidget = self.fContainer

  313. 

  314.     def updateContainer(self, canvasThemeData):

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

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

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

  318. 

  319.     # --------------------------------------------------------------------------------------------------------

  320.     # Called by the signal handler

  321. 

  322.     @pyqtSlot()

  323.     def slot_handleSIGUSR1(self):

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

  325.         self.slot_fileSave()

  326. 

  327.     @pyqtSlot()

  328.     def slot_handleSIGTERM(self):

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

  330.         self.close()

  331. 

  332.     # --------------------------------------------------------------------------------------------------------

  333.     # Internal stuff (files)

  334. 

  335.     def loadProjectNow(self):

  336.         if not self.fProjectFilename:

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

  338. 

  339.         self.fContainer.projectLoadingStarted()

  340.         self.fIsProjectLoading = True

  341. 

  342.         self.host.load_project(self.fProjectFilename)

  343. 

  344.         self.fIsProjectLoading = False

  345.         self.fContainer.projectLoadingFinished()

  346. 

  347.     def loadProjectLater(self, filename):

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

  349.         self.setProperWindowTitle()

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

  351. 

  352.     def saveProjectNow(self):

  353.         if not self.fProjectFilename:

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

  355. 

  356.         self.host.save_project(self.fProjectFilename)

  357. 

  358.     # --------------------------------------------------------------------------------------------------------

  359. 

  360.     @pyqtSlot()

  361.     def slot_fileNew(self):

  362.         self.fContainer.removeAllPlugins()

  363.         self.fProjectFilename = ""

  364.         self.setProperWindowTitle()

  365. 

  366.     @pyqtSlot()

  367.     def slot_fileOpen(self):

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

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

  370. 

  371.         if config_UseQt5:

  372.             filename = filename[0]

  373.         if not filename:

  374.             return

  375. 

  376.         newFile = True

  377. 

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

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

  380.                                                                           QMessageBox.Yes | QMessageBox.No, QMessageBox.No)

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

  382. 

  383.         if newFile:

  384.             self.fContainer.removeAllPlugins()

  385.             self.fProjectFilename = filename

  386.             self.setProperWindowTitle()

  387.             self.loadProjectNow()

  388.         else:

  389.             filenameOld = self.fProjectFilename

  390.             self.fProjectFilename = filename

  391.             self.loadProjectNow()

  392.             self.fProjectFilename = filenameOld

  393. 

  394.     @pyqtSlot()

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

  396.         if self.fProjectFilename and not saveAs:

  397.             return self.saveProjectNow()

  398. 

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

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

  401. 

  402.         if config_UseQt5:

  403.             filename = filename[0]

  404.         if not filename:

  405.             return

  406. 

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

  408.             filename += ".carxp"

  409. 

  410.         if self.fProjectFilename != filename:

  411.             self.fProjectFilename = filename

  412.             self.setProperWindowTitle()

  413. 

  414.         self.saveProjectNow()

  415. 

  416.     @pyqtSlot()

  417.     def slot_fileSaveAs(self):

  418.         self.slot_fileSave(True)

  419. 

  420.     @pyqtSlot()

  421.     def slot_loadProjectNow(self):

  422.         self.loadProjectNow()

  423. 

  424.     # --------------------------------------------------------------------------------------------------------

  425.     # Internal stuff (engine)

  426. 

  427.     def setEngineSettings(self):

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

  429. 

  430.         # ----------------------------------------------------------------------------------------------------

  431.         # main settings

  432. 

  433.         setHostSettings(self.host)

  434. 

  435.         # ----------------------------------------------------------------------------------------------------

  436.         # plugin paths

  437. 

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

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

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

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

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

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

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

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

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

  447. 

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

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

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

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

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

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

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

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

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

  457. 

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

  459.         # don't continue if plugin

  460. 

  461.         if self.host.isPlugin:

  462.             return "Plugin"

  463. 

  464.         # ----------------------------------------------------------------------------------------------------

  465.         # driver and device settings

  466. 

  467.         # driver name

  468.         try:

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

  470.         except:

  471.             audioDriver = CARLA_DEFAULT_AUDIO_DRIVER

  472. 

  473.         # driver options

  474.         try:

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

  476.         except:

  477.             audioDevice = ""

  478. 

  479.         try:

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

  481.         except:

  482.             audioNumPeriods = CARLA_DEFAULT_AUDIO_NUM_PERIODS

  483. 

  484.         try:

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

  486.         except:

  487.             audioBufferSize = CARLA_DEFAULT_AUDIO_BUFFER_SIZE

  488. 

  489.         try:

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

  491.         except:

  492.             audioSampleRate = CARLA_DEFAULT_AUDIO_SAMPLE_RATE

  493. 

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

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

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

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

  498. 

  499.         # ----------------------------------------------------------------------------------------------------

  500.         # fix things if needed

  501. 

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

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

  504. 

  505.         # ----------------------------------------------------------------------------------------------------

  506.         # return selected driver name

  507. 

  508.         return audioDriver

  509. 

  510.     # --------------------------------------------------------------------------------------------------------

  511. 

  512.     @pyqtSlot()

  513.     def slot_engineStart(self):

  514.         audioDriver = self.setEngineSettings()

  515. 

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

  517.             if self.fFirstEngineInit:

  518.                 self.fFirstEngineInit = False

  519.                 return

  520. 

  521.             audioError = self.host.get_last_error()

  522. 

  523.             if audioError:

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

  525.             else:

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

  527.             return

  528. 

  529.         self.fFirstEngineInit = False

  530. 

  531.     @pyqtSlot()

  532.     def slot_engineStop(self):

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

  534.             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"

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

  536.                                                                          QMessageBox.Yes | QMessageBox.No, QMessageBox.No)

  537.             if ask != QMessageBox.Yes:

  538.                 return

  539. 

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

  541.             self.fContainer.removeAllPlugins()

  542. 

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

  544.             print(self.host.get_last_error())

  545. 

  546.     # --------------------------------------------------------------------------------------------------------

  547. 

  548.     @pyqtSlot(str)

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

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

  551. 

  552.         self.ui.menu_PluginMacros.setEnabled(True)

  553.         self.ui.menu_Canvas.setEnabled(True)

  554. 

  555.         if not self.host.isPlugin:

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

  557.             self.ui.act_engine_stop.setEnabled(True)

  558. 

  559.             if not self.fSessionManagerName:

  560.                 self.ui.act_file_open.setEnabled(True)

  561.                 self.ui.act_file_save.setEnabled(True)

  562.                 self.ui.act_file_save_as.setEnabled(True)

  563. 

  564.             self.setTransportMenuEnabled(True)

  565. 

  566.         self.fLastTransportFrame = 0

  567.         self.fLastTransportState = False

  568.         self.refreshTransport(True)

  569.         self.fContainer.engineStarted()

  570.         self.startTimers()

  571. 

  572.     @pyqtSlot()

  573.     def slot_handleEngineStoppedCallback(self):

  574.         self.killTimers()

  575. 

  576.         # just in case

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

  578.         self.fContainer.removeAllPlugins()

  579. 

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

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

  582. 

  583.         if not self.host.isPlugin:

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

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

  586. 

  587.             if not self.fSessionManagerName:

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

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

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

  591. 

  592.             self.setTransportMenuEnabled(False)

  593. 

  594.         self.fSampleRate = 0.0

  595.         self.fTransportText = ""

  596.         self.fContainer.engineStopped()

  597. 

  598.     @pyqtSlot(float)

  599.     def slot_handleSampleRateChangedCallback(self, newSampleRate):

  600.         self.fSampleRate = newSampleRate

  601.         self.refreshTransport(True)

  602. 

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

  604.     # Internal stuff (plugins)

  605. 

  606.     @pyqtSlot()

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

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

  609. 

  610.         if not dialog.exec_():

  611.             return

  612. 

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

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

  615.             return

  616. 

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

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

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

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

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

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

  623. 

  624.         if pluginToReplace >= 0:

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

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

  627.                 return

  628. 

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

  630. 

  631.         if pluginToReplace >= 0:

  632.             self.host.replace_plugin(self.host.get_max_plugin_number())

  633. 

  634.         if not ok:

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

  636. 

  637.     @pyqtSlot()

  638.     def slot_pluginRemoveAll(self):

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

  640. 

  641.         count = self.host.get_current_plugin_count()

  642. 

  643.         if count == 0:

  644.             return

  645. 

  646.         self.fContainer.projectLoadingStarted()

  647. 

  648.         app = QApplication.instance()

  649.         for i in range(count):

  650.             app.processEvents()

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

  652. 

  653.         self.fContainer.projectLoadingFinished()

  654. 

  655.         #self.fContainer.removeAllPlugins()

  656.         #self.host.remove_all_plugins()

  657. 

  658.     # --------------------------------------------------------------------------------------------------------

  659. 

  660.     @pyqtSlot(int, str)

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

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

  663. 

  664.     @pyqtSlot(int)

  665.     def slot_handlePluginRemovedCallback(self, pluginId):

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

  667. 

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

  669.     # Internal stuff (plugin data)

  670. 

  671.     def getExtraPtr(self, plugin):

  672.         ptype = plugin['type']

  673. 

  674.         if ptype == PLUGIN_LADSPA:

  675.             uniqueId = plugin['uniqueId']

  676. 

  677.             self.maybeLoadRDFs()

  678. 

  679.             for rdfItem in self.fLadspaRdfList:

  680.                 if rdfItem.UniqueID == uniqueId:

  681.                     return pointer(rdfItem)

  682. 

  683.         elif ptype in (PLUGIN_GIG, PLUGIN_SF2):

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

  685.                 global _true

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

  687.                 return _true

  688. 

  689.         return None

  690. 

  691.     def maybeLoadRDFs(self):

  692.         if not self.fLadspaRdfNeedsUpdate:

  693.             return

  694. 

  695.         self.fLadspaRdfNeedsUpdate = False

  696.         self.fLadspaRdfList = []

  697. 

  698.         if not haveLRDF:

  699.             return

  700. 

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

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

  703. 

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

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

  706. 

  707.             try:

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

  709.             except:

  710.                 pass

  711. 

  712.             frLadspa.close()

  713. 

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

  715.     # Internal stuff (timers)

  716. 

  717.     def startTimers(self):

  718.         if self.fIdleTimerFast == 0:

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

  720. 

  721.         if self.fIdleTimerSlow == 0:

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

  723. 

  724.     def restartTimersIfNeeded(self):

  725.         if self.fIdleTimerFast != 0:

  726.             self.killTimer(self.fIdleTimerFast)

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

  728. 

  729.         if self.fIdleTimerSlow != 0:

  730.             self.killTimer(self.fIdleTimerSlow)

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

  732. 

  733.     def killTimers(self):

  734.         if self.fIdleTimerFast != 0:

  735.             self.killTimer(self.fIdleTimerFast)

  736.             self.fIdleTimerFast = 0

  737. 

  738.         if self.fIdleTimerSlow != 0:

  739.             self.killTimer(self.fIdleTimerSlow)

  740.             self.fIdleTimerSlow = 0

  741. 

  742.     # --------------------------------------------------------------------------------------------------------

  743.     # Internal stuff (transport)

  744. 

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

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

  747.             return

  748. 

  749.         timeInfo = self.host.get_transport_info()

  750.         playing  = timeInfo['playing']

  751.         frame    = timeInfo['frame']

  752. 

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

  754.             if playing:

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

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

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

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

  759.             else:

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

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

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

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

  764. 

  765.             self.fLastTransportState = playing

  766. 

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

  768.             time = frame / self.fSampleRate

  769.             secs = time % 60

  770.             mins = (time / 60) % 60

  771.             hrs  = (time / 3600) % 60

  772. 

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

  774.             self.fLastTransportFrame = frame

  775. 

  776.     def setTransportMenuEnabled(self, enabled):

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

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

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

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

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

  782. 

  783.     @pyqtSlot(bool)

  784.     def slot_transportPlayPause(self, toggled):

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

  786.             return

  787. 

  788.         if toggled:

  789.             self.host.transport_play()

  790.         else:

  791.             self.host.transport_pause()

  792. 

  793.         self.refreshTransport()

  794. 

  795.     @pyqtSlot()

  796.     def slot_transportStop(self):

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

  798.             return

  799. 

  800.         self.host.transport_pause()

  801.         self.host.transport_relocate(0)

  802. 

  803.         self.refreshTransport()

  804. 

  805.     @pyqtSlot()

  806.     def slot_transportBackwards(self):

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

  808.             return

  809. 

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

  811. 

  812.         if newFrame < 0:

  813.             newFrame = 0

  814. 

  815.         self.host.transport_relocate(newFrame)

  816. 

  817.     @pyqtSlot()

  818.     def slot_transportForwards(self):

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

  820.             return

  821. 

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

  823.         self.host.transport_relocate(newFrame)

  824. 

  825.     # -----------------------------------------------------------------

  826.     # Internal stuff (settings)

  827. 

  828.     def loadSettings(self, firstTime):

  829.         settings = QSettings()

  830. 

  831.         if firstTime:

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

  833. 

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

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

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

  837. 

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

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

  840.             #else:

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

  842. 

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

  844. 

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

  846. 

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

  848.                 if i == 0: continue

  849.                 folder = diskFolders[i]

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

  851. 

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

  853.             #    self.setUnifiedTitleAndToolBarOnMac(True)

  854. 

  855.         # ---------------------------------------------

  856. 

  857.         # TODO

  858. 

  859.         self.fSavedSettings = {

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

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

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

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

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

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

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

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

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

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

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

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

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

  873.         }

  874. 

  875.         # ---------------------------------------------

  876. 

  877.         self.setEngineSettings()

  878. 

  879.         self.restartTimersIfNeeded()

  880. 

  881.         # ---------------------------------------------

  882. 

  883.     def saveSettings(self):

  884.         settings = QSettings()

  885. 

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

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

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

  889. 

  890.         diskFolders = []

  891. 

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

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

  894. 

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

  896. 

  897.         self.fContainer.saveSettings(settings)

  898. 

  899.     # -----------------------------------------------------------------

  900.     # Internal stuff (gui)

  901. 

  902.     @pyqtSlot()

  903.     def slot_aboutCarla(self):

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

  905. 

  906.     @pyqtSlot()

  907.     def slot_aboutJuce(self):

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

  909. 

  910.     @pyqtSlot()

  911.     def slot_aboutQt(self):

  912.         QApplication.instance().aboutQt()

  913. 

  914.     # -----------------------------------------------------------------

  915. 

  916.     @pyqtSlot(int)

  917.     def slot_diskFolderChanged(self, index):

  918.         if index < 0:

  919.             return

  920.         elif index == 0:

  921.             filename = HOME

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

  923.         else:

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

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

  926. 

  927.         self.fDirModel.setRootPath(filename)

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

  929. 

  930.     @pyqtSlot()

  931.     def slot_diskFolderAdd(self):

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

  933. 

  934.         if newPath:

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

  936.                 newPath = newPath[:-1]

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

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

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

  940. 

  941.     @pyqtSlot()

  942.     def slot_diskFolderRemove(self):

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

  944. 

  945.         if index <= 0:

  946.             return

  947. 

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

  949. 

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

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

  952. 

  953.     @pyqtSlot(QModelIndex)

  954.     def slot_fileTreeDoubleClicked(self, modelIndex):

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

  956. 

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

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

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

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

  961. 

  962.     # -----------------------------------------------------------------

  963. 

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

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

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

  967. 

  968.     @pyqtSlot(str)

  969.     def slot_handleInfoCallback(self, info):

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

  971. 

  972.     @pyqtSlot(str)

  973.     def slot_handleErrorCallback(self, error):

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

  975. 

  976.     @pyqtSlot()

  977.     def slot_handleQuitCallback(self):

  978.         pass # TODO

  979. 

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

  981. 

  982.     def showEvent(self, event):

  983.         QMainWindow.showEvent(self, event)

  984. 

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

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

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

  988. 

  989.     def hideEvent(self, event):

  990.         # disable parent

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

  992. 

  993.         QMainWindow.hideEvent(self, event)

  994. 

  995.     # -----------------------------------------------------------------

  996. 

  997.     def timerEvent(self, event):

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

  999.             #if not self.host.isPlugin:

  1000.             self.fContainer.idleFast()

  1001.             self.refreshTransport()

  1002.             self.host.engine_idle()

  1003. 

  1004.         elif event.timerId() == self.fIdleTimerSlow:

  1005.             self.fContainer.idleSlow()

  1006. 

  1007.         QMainWindow.timerEvent(self, event)

  1008. 

  1009.     def closeEvent(self, event):

  1010.         self.killTimers()

  1011.         self.saveSettings()

  1012. 

  1013.         if self.host.isPlugin:

  1014.             pass

  1015. 

  1016.         elif self.host.is_engine_running():

  1017.             self.host.set_engine_about_to_close()

  1018. 

  1019.             count = self.host.get_current_plugin_count()

  1020. 

  1021.             if count > 0:

  1022.                 # simulate project loading, to disable container

  1023.                 self.ui.act_plugin_remove_all.setEnabled(False)

  1024.                 self.fContainer.projectLoadingStarted()

  1025. 

  1026.                 app = QApplication.instance()

  1027.                 for i in range(count):

  1028.                     app.processEvents()

  1029.                     self.host.remove_plugin(count-i-1)

  1030. 

  1031.                 app.processEvents()

  1032. 

  1033.                 #self.fContainer.removeAllPlugins()

  1034.                 #self.host.remove_all_plugins()

  1035. 

  1036.             self.slot_engineStop()

  1037. 

  1038.         QMainWindow.closeEvent(self, event)

  1039. 

  1040. # ------------------------------------------------------------------------------------------------------------

  1041. # Engine callback

  1042. 

  1043. def engineCallback(host, action, pluginId, value1, value2, value3, valueStr):

  1044.     # kdevelop likes this :)

  1045.     if False: host = CarlaHostMeta()

  1046. 

  1047.     if action == ENGINE_CALLBACK_ENGINE_STARTED:

  1048.         host.processMode   = value1

  1049.         host.transportMode = value2

  1050.     elif action == ENGINE_CALLBACK_PROCESS_MODE_CHANGED:

  1051.         host.processMode   = value1

  1052.     elif action == ENGINE_CALLBACK_TRANSPORT_MODE_CHANGED:

  1053.         host.transportMode = value1

  1054. 

  1055.     valueStr = charPtrToString(valueStr)

  1056. 

  1057.     if action == ENGINE_CALLBACK_DEBUG:

  1058.         host.DebugCallback.emit(pluginId, value1, value2, value3, valueStr)

  1059.     elif action == ENGINE_CALLBACK_PLUGIN_ADDED:

  1060.         host.PluginAddedCallback.emit(pluginId, valueStr)

  1061.     elif action == ENGINE_CALLBACK_PLUGIN_REMOVED:

  1062.         host.PluginRemovedCallback.emit(pluginId)

  1063.     elif action == ENGINE_CALLBACK_PLUGIN_RENAMED:

  1064.         host.PluginRenamedCallback.emit(pluginId, valueStr)

  1065.     elif action == ENGINE_CALLBACK_PLUGIN_UNAVAILABLE:

  1066.         host.PluginUnavailableCallback.emit(pluginId, valueStr)

  1067.     elif action == ENGINE_CALLBACK_PARAMETER_VALUE_CHANGED:

  1068.         host.ParameterValueChangedCallback.emit(pluginId, value1, value3)

  1069.     elif action == ENGINE_CALLBACK_PARAMETER_DEFAULT_CHANGED:

  1070.         host.ParameterDefaultChangedCallback.emit(pluginId, value1, value3)

  1071.     elif action == ENGINE_CALLBACK_PARAMETER_MIDI_CC_CHANGED:

  1072.         host.ParameterMidiCcChangedCallback.emit(pluginId, value1, value2)

  1073.     elif action == ENGINE_CALLBACK_PARAMETER_MIDI_CHANNEL_CHANGED:

  1074.         host.ParameterMidiChannelChangedCallback.emit(pluginId, value1, value2)

  1075.     elif action == ENGINE_CALLBACK_PROGRAM_CHANGED:

  1076.         host.ProgramChangedCallback.emit(pluginId, value1)

  1077.     elif action == ENGINE_CALLBACK_MIDI_PROGRAM_CHANGED:

  1078.         host.MidiProgramChangedCallback.emit(pluginId, value1)

  1079.     elif action == ENGINE_CALLBACK_OPTION_CHANGED:

  1080.         host.OptionChangedCallback.emit(pluginId, value1, bool(value2))

  1081.     elif action == ENGINE_CALLBACK_UI_STATE_CHANGED:

  1082.         host.UiStateChangedCallback.emit(pluginId, value1)

  1083.     elif action == ENGINE_CALLBACK_NOTE_ON:

  1084.         host.NoteOnCallback.emit(pluginId, value1, value2, int(value3))

  1085.     elif action == ENGINE_CALLBACK_NOTE_OFF:

  1086.         host.NoteOffCallback.emit(pluginId, value1, value2)

  1087.     elif action == ENGINE_CALLBACK_UPDATE:

  1088.         host.UpdateCallback.emit(pluginId)

  1089.     elif action == ENGINE_CALLBACK_RELOAD_INFO:

  1090.         host.ReloadInfoCallback.emit(pluginId)

  1091.     elif action == ENGINE_CALLBACK_RELOAD_PARAMETERS:

  1092.         host.ReloadParametersCallback.emit(pluginId)

  1093.     elif action == ENGINE_CALLBACK_RELOAD_PROGRAMS:

  1094.         host.ReloadProgramsCallback.emit(pluginId)

  1095.     elif action == ENGINE_CALLBACK_RELOAD_ALL:

  1096.         host.ReloadAllCallback.emit(pluginId)

  1097.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_ADDED:

  1098.         host.PatchbayClientAddedCallback.emit(pluginId, value1, value2, valueStr)

  1099.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_REMOVED:

  1100.         host.PatchbayClientRemovedCallback.emit(pluginId)

  1101.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_RENAMED:

  1102.         host.PatchbayClientRenamedCallback.emit(pluginId, valueStr)

  1103.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_DATA_CHANGED:

  1104.         host.PatchbayClientDataChangedCallback.emit(pluginId, value1, value2)

  1105.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_ADDED:

  1106.         host.PatchbayPortAddedCallback.emit(pluginId, value1, value2, valueStr)

  1107.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_REMOVED:

  1108.         host.PatchbayPortRemovedCallback.emit(pluginId, value1)

  1109.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_RENAMED:

  1110.         host.PatchbayPortRenamedCallback.emit(pluginId, value1, valueStr)

  1111.     elif action == ENGINE_CALLBACK_PATCHBAY_CONNECTION_ADDED:

  1112.         gOut, pOut, gIn, pIn = [int(i) for i in valueStr.split(":")] # FIXME

  1113.         host.PatchbayConnectionAddedCallback.emit(pluginId, gOut, pOut, gIn, pIn)

  1114.     elif action == ENGINE_CALLBACK_PATCHBAY_CONNECTION_REMOVED:

  1115.         host.PatchbayConnectionRemovedCallback.emit(pluginId, value1, value2)

  1116.     elif action == ENGINE_CALLBACK_ENGINE_STARTED:

  1117.         host.EngineStartedCallback.emit(value1, value2, valueStr)

  1118.     elif action == ENGINE_CALLBACK_ENGINE_STOPPED:

  1119.         host.EngineStoppedCallback.emit()

  1120.     elif action == ENGINE_CALLBACK_PROCESS_MODE_CHANGED:

  1121.         host.ProcessModeChangedCallback.emit(value1)

  1122.     elif action == ENGINE_CALLBACK_TRANSPORT_MODE_CHANGED:

  1123.         host.TransportModeChangedCallback.emit(value1)

  1124.     elif action == ENGINE_CALLBACK_BUFFER_SIZE_CHANGED:

  1125.         host.BufferSizeChangedCallback.emit(value1)

  1126.     elif action == ENGINE_CALLBACK_SAMPLE_RATE_CHANGED:

  1127.         host.SampleRateChangedCallback.emit(value3)

  1128.     elif action == ENGINE_CALLBACK_IDLE:

  1129.         QApplication.instance().processEvents()

  1130.     elif action == ENGINE_CALLBACK_INFO:

  1131.         host.InfoCallback.emit(valueStr)

  1132.     elif action == ENGINE_CALLBACK_ERROR:

  1133.         host.ErrorCallback.emit(valueStr)

  1134.     elif action == ENGINE_CALLBACK_QUIT:

  1135.         host.QuitCallback.emit()

  1136. 

  1137. # ------------------------------------------------------------------------------------------------------------

  1138. # File callback

  1139. 

  1140. def fileCallback(ptr, action, isDir, title, filter):

  1141.     ret = ("", "") if config_UseQt5 else ""

  1142. 

  1143.     if action == FILE_CALLBACK_DEBUG:

  1144.         pass

  1145.     elif action == FILE_CALLBACK_OPEN:

  1146.         ret = QFileDialog.getOpenFileName(gCarla.gui, charPtrToString(title), "", charPtrToString(filter) ) #, QFileDialog.ShowDirsOnly if isDir else 0x0)

  1147.     elif action == FILE_CALLBACK_SAVE:

  1148.         ret = QFileDialog.getSaveFileName(gCarla.gui, charPtrToString(title), "", charPtrToString(filter), QFileDialog.ShowDirsOnly if isDir else 0x0)

  1149. 

  1150.     if config_UseQt5:

  1151.         ret = ret[0]

  1152.     if not ret:

  1153.         return None

  1154. 

  1155.     global fileRet

  1156.     fileRet = c_char_p(ret.encode("utf-8"))

  1157.     retval  = cast(byref(fileRet), POINTER(c_uintptr))

  1158.     return retval.contents.value

  1159. 

  1160. # ------------------------------------------------------------------------------------------------------------

  1161. # Init host

  1162. 

  1163. def initHost(initName, libPrefixOrPluginClass, isControl, isPlugin, failError):

  1164.     if isPlugin:

  1165.         PluginClass = libPrefixOrPluginClass

  1166.         libPrefix   = None

  1167.     else:

  1168.         PluginClass = None

  1169.         libPrefix   = libPrefixOrPluginClass

  1170. 

  1171.     # --------------------------------------------------------------------------------------------------------

  1172.     # Set Carla library name

  1173. 

  1174.     libname = "libcarla_"

  1175. 

  1176.     if isControl:

  1177.         libname += "control2"

  1178.     else:

  1179.         libname += "standalone2"

  1180. 

  1181.     if WINDOWS:

  1182.         libname += ".dll"

  1183.     elif MACOS:

  1184.         libname += ".dylib"

  1185.     else:

  1186.         libname += ".so"

  1187. 

  1188.     # --------------------------------------------------------------------------------------------------------

  1189.     # Set binary dir

  1190. 

  1191.     CWDl = CWD.lower()

  1192. 

  1193.     # standalone, installed system-wide linux

  1194.     if libPrefix is not None:

  1195.         pathBinaries  = os.path.join(libPrefix, "lib", "carla")

  1196.         pathResources = os.path.join(libPrefix, "share", "carla", "resources")

  1197. 

  1198.     # standalone, local source

  1199.     elif CWDl.endswith("source"):

  1200.         pathBinaries  = os.path.abspath(os.path.join(CWD, "..", "bin"))

  1201.         pathResources = os.path.join(pathBinaries, "resources")

  1202. 

  1203.     # plugin

  1204.     elif CWDl.endswith("resources"):

  1205.         # installed system-wide linux

  1206.         if CWDl.endswith("/share/carla/resources"):

  1207.             pathBinaries  = os.path.abspath(os.path.join(CWD, "..", "..", "..", "lib", "carla"))

  1208.             pathResources = CWD

  1209. 

  1210.         # local source

  1211.         elif CWDl.endswith("native-plugins%sresources" % os.sep):

  1212.             pathBinaries  = os.path.abspath(os.path.join(CWD, "..", "..", "..", "..", "bin"))

  1213.             pathResources = CWD

  1214. 

  1215.         # other

  1216.         else:

  1217.             pathBinaries  = os.path.abspath(os.path.join(CWD, ".."))

  1218.             pathResources = CWD

  1219. 

  1220.     # everything else

  1221.     else:

  1222.         pathBinaries  = CWD

  1223.         pathResources = os.path.join(pathBinaries, "resources")

  1224. 

  1225.     # --------------------------------------------------------------------------------------------------------

  1226.     # Fail if binary dir is not found

  1227. 

  1228.     if not os.path.exists(pathBinaries):

  1229.         if failError:

  1230.             QMessageBox.critical(None, "Error", "Failed to find the carla binaries, cannot continue")

  1231.             sys.exit(1)

  1232.         return

  1233. 

  1234.     # --------------------------------------------------------------------------------------------------------

  1235.     # Print info

  1236. 

  1237.     print("Carla %s started, status:" % VERSION)

  1238.     print("  Python version: %s" % sys.version.split(" ",1)[0])

  1239.     print("  Qt version:     %s" % qVersion())

  1240.     print("  PyQt version:   %s" % PYQT_VERSION_STR)

  1241.     print("  Binary dir:     %s" % pathBinaries)

  1242.     print("  Resources dir:  %s" % pathResources)

  1243. 

  1244.     # --------------------------------------------------------------------------------------------------------

  1245.     # Init host

  1246. 

  1247.     if failError:

  1248.         # no try

  1249.         host = PluginClass() if isPlugin else CarlaHostDLL(os.path.join(pathBinaries, libname))

  1250.     else:

  1251.         try:

  1252.             host = PluginClass() if isPlugin else CarlaHostDLL(os.path.join(pathBinaries, libname))

  1253.         except:

  1254.             host = CarlaHostNull()

  1255. 

  1256.     host.isControl = isControl

  1257.     host.isPlugin  = isPlugin

  1258. 

  1259.     host.set_engine_callback(lambda h,a,p,v1,v2,v3,vs: engineCallback(host,a,p,v1,v2,v3,vs))

  1260.     host.set_file_callback(fileCallback)

  1261. 

  1262.     # If it's a plugin the paths are already set

  1263.     if not isPlugin:

  1264.         host.pathBinaries  = pathBinaries

  1265.         host.pathResources = pathResources

  1266.         host.set_engine_option(ENGINE_OPTION_PATH_BINARIES,  0, pathBinaries)

  1267.         host.set_engine_option(ENGINE_OPTION_PATH_RESOURCES, 0, pathResources)

  1268. 

  1269.         if not isControl:

  1270.             host.set_engine_option(ENGINE_OPTION_NSM_INIT, os.getpid(), initName)

  1271. 

  1272.     return host

  1273. 

  1274. # ------------------------------------------------------------------------------------------------------------

  1275. # Load host settings

  1276. 

  1277. def loadHostSettings(host):

  1278.     # kdevelop likes this :)

  1279.     if False: host = CarlaHostMeta()

  1280. 

  1281.     settings = QSettings("falkTX", "Carla2")

  1282. 

  1283.     # bool values

  1284.     try:

  1285.         host.forceStereo = settings.value(CARLA_KEY_ENGINE_FORCE_STEREO, CARLA_DEFAULT_FORCE_STEREO, type=bool)

  1286.     except:

  1287.         host.forceStereo = CARLA_DEFAULT_FORCE_STEREO

  1288. 

  1289.     try:

  1290.         host.preferPluginBridges = settings.value(CARLA_KEY_ENGINE_PREFER_PLUGIN_BRIDGES, CARLA_DEFAULT_PREFER_PLUGIN_BRIDGES, type=bool)

  1291.     except:

  1292.         host.preferPluginBridges = CARLA_DEFAULT_PREFER_PLUGIN_BRIDGES

  1293. 

  1294.     try:

  1295.         host.preferUIBridges = settings.value(CARLA_KEY_ENGINE_PREFER_UI_BRIDGES, CARLA_DEFAULT_PREFER_UI_BRIDGES, type=bool)

  1296.     except:

  1297.         host.preferUIBridges = CARLA_DEFAULT_PREFER_UI_BRIDGES

  1298. 

  1299.     try:

  1300.         host.uisAlwaysOnTop = settings.value(CARLA_KEY_ENGINE_UIS_ALWAYS_ON_TOP, CARLA_DEFAULT_UIS_ALWAYS_ON_TOP, type=bool)

  1301.     except:

  1302.         host.uisAlwaysOnTop = CARLA_DEFAULT_UIS_ALWAYS_ON_TOP

  1303. 

  1304.     # int values

  1305.     try:

  1306.         host.maxParameters = settings.value(CARLA_KEY_ENGINE_MAX_PARAMETERS, CARLA_DEFAULT_MAX_PARAMETERS, type=int)

  1307.     except:

  1308.         host.maxParameters = CARLA_DEFAULT_MAX_PARAMETERS

  1309. 

  1310.     try:

  1311.         host.uiBridgesTimeout = settings.value(CARLA_KEY_ENGINE_UI_BRIDGES_TIMEOUT, CARLA_DEFAULT_UI_BRIDGES_TIMEOUT, type=int)

  1312.     except:

  1313.         host.uiBridgesTimeout = CARLA_DEFAULT_UI_BRIDGES_TIMEOUT

  1314. 

  1315.     if host.isPlugin:

  1316.         return

  1317. 

  1318.     # enums

  1319.     try:

  1320.         host.transportMode = settings.value(CARLA_KEY_ENGINE_TRANSPORT_MODE, CARLA_DEFAULT_TRANSPORT_MODE, type=int)

  1321.     except:

  1322.         host.transportMode = CARLA_DEFAULT_TRANSPORT_MODE

  1323. 

  1324.     if not host.processModeForced:

  1325.         try:

  1326.             host.processMode = settings.value(CARLA_KEY_ENGINE_PROCESS_MODE, CARLA_DEFAULT_PROCESS_MODE, type=int)

  1327.         except:

  1328.             host.processMode = CARLA_DEFAULT_PROCESS_MODE

  1329. 

  1330.     # --------------------------------------------------------------------------------------------------------

  1331.     # fix things if needed

  1332. 

  1333.     if host.processMode == ENGINE_PROCESS_MODE_MULTIPLE_CLIENTS and LADISH_APP_NAME:

  1334.         print("LADISH detected but using multiple clients (not allowed), forcing single client now")

  1335.         host.processMode = ENGINE_PROCESS_MODE_SINGLE_CLIENT

  1336. 

  1337. # ------------------------------------------------------------------------------------------------------------

  1338. # Set host settings

  1339. 

  1340. def setHostSettings(host):

  1341.     # kdevelop likes this :)

  1342.     if False: host = CarlaHostMeta()

  1343. 

  1344.     # TEST

  1345.     host.preventBadBehaviour = True

  1346. 

  1347.     host.set_engine_option(ENGINE_OPTION_FORCE_STEREO,          host.forceStereo,         "")

  1348.     host.set_engine_option(ENGINE_OPTION_PREFER_PLUGIN_BRIDGES, host.preferPluginBridges, "")

  1349.     host.set_engine_option(ENGINE_OPTION_PREFER_UI_BRIDGES,     host.preferUIBridges,     "")

  1350.     host.set_engine_option(ENGINE_OPTION_UIS_ALWAYS_ON_TOP,     host.uisAlwaysOnTop,      "")

  1351.     host.set_engine_option(ENGINE_OPTION_MAX_PARAMETERS,        host.maxParameters,       "")

  1352.     host.set_engine_option(ENGINE_OPTION_UI_BRIDGES_TIMEOUT,    host.uiBridgesTimeout,    "")

  1353.     host.set_engine_option(ENGINE_OPTION_PREVENT_BAD_BEHAVIOUR, host.preventBadBehaviour, "")

  1354. 

  1355.     if host.isPlugin:

  1356.         return

  1357. 

  1358.     host.set_engine_option(ENGINE_OPTION_PROCESS_MODE,          host.processMode,         "")

  1359.     host.set_engine_option(ENGINE_OPTION_TRANSPORT_MODE,        host.transportMode,       "")

  1360. 

  1361. # ------------------------------------------------------------------------------------------------------------