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Carla
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Carla/source/frontend/carla_shared.py

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  1. #!/usr/bin/env python3

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

  3. 

  4. # Common Carla code

  5. # Copyright (C) 2011-2023 Filipe Coelho <falktx@falktx.com>

  6. #

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

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

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

  10. # the License, or any later version.

  11. #

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

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

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

  15. # GNU General Public License for more details.

  16. #

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

  18. 

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

  20. # Imports (Global)

  21. 

  22. import os

  23. import sys

  24. 

  25. from math import fmod

  26. 

  27. # ------------------------------------------------------------------------------------------------------------

  28. # Imports (Signal)

  29. 

  30. from signal import signal, SIGINT, SIGTERM

  31. 

  32. try:

  33.     from signal import SIGUSR1

  34.     haveSIGUSR1 = True

  35. except:

  36.     haveSIGUSR1 = False

  37. 

  38. # ------------------------------------------------------------------------------------------------------------

  39. # Imports (PyQt5)

  40. 

  41. # import changed in PyQt 5.15.8, so try both

  42. try:

  43.     from PyQt5.Qt import PYQT_VERSION_STR

  44. except ImportError:

  45.     from PyQt5.QtCore import PYQT_VERSION_STR

  46. 

  47. from PyQt5.QtCore import qFatal, QT_VERSION, QT_VERSION_STR, qWarning, QDir, QSettings

  48. from PyQt5.QtGui import QIcon

  49. from PyQt5.QtWidgets import QFileDialog, QMessageBox

  50. 

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

  52. # Imports (Custom)

  53. 

  54. from carla_backend import (

  55.     kIs64bit, HAIKU, LINUX, MACOS, WINDOWS,

  56.     MAX_DEFAULT_PARAMETERS,

  57.     ENGINE_PROCESS_MODE_MULTIPLE_CLIENTS,

  58.     ENGINE_PROCESS_MODE_PATCHBAY,

  59.     ENGINE_TRANSPORT_MODE_INTERNAL,

  60.     ENGINE_TRANSPORT_MODE_JACK

  61. )

  62. 

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

  64. # Config

  65. 

  66. # These will be modified during install

  67. X_LIBDIR_X = None

  68. X_DATADIR_X = None

  69. 

  70. # ------------------------------------------------------------------------------------------------------------

  71. # Platform specific stuff

  72. 

  73. if WINDOWS:

  74.     WINDIR = os.getenv("WINDIR")

  75. 

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

  77. # Set Version

  78. 

  79. VERSION = "2.5.5"

  80. 

  81. # ------------------------------------------------------------------------------------------------------------

  82. # Set TMP

  83. 

  84. envTMP = os.getenv("TMP")

  85. 

  86. if envTMP is None:

  87.     if WINDOWS:

  88.         qWarning("TMP variable not set")

  89.     TMP = QDir.tempPath()

  90. else:

  91.     TMP = envTMP

  92. 

  93. if not os.path.exists(TMP):

  94.     qWarning("TMP does not exist")

  95.     TMP = "/"

  96. 

  97. del envTMP

  98. 

  99. # ------------------------------------------------------------------------------------------------------------

  100. # Set HOME

  101. 

  102. envHOME = os.getenv("HOME")

  103. 

  104. if envHOME is None:

  105.     if LINUX or MACOS:

  106.         qWarning("HOME variable not set")

  107.     HOME = QDir.toNativeSeparators(QDir.homePath())

  108. else:

  109.     HOME = envHOME

  110. 

  111. if not os.path.exists(HOME):

  112.     qWarning("HOME does not exist")

  113.     HOME = TMP

  114. 

  115. del envHOME

  116. 

  117. # ------------------------------------------------------------------------------------------------------------

  118. # Set PATH

  119. 

  120. envPATH = os.getenv("PATH")

  121. 

  122. if envPATH is None:

  123.     qWarning("PATH variable not set")

  124.     if MACOS:

  125.         PATH = ("/opt/local/bin", "/usr/local/bin", "/usr/bin", "/bin")

  126.     elif WINDOWS:

  127.         PATH = (os.path.join(WINDIR, "system32"), WINDIR)

  128.     else:

  129.         PATH = ("/usr/local/bin", "/usr/bin", "/bin")

  130. else:

  131.     PATH = envPATH.split(os.pathsep)

  132. 

  133. del envPATH

  134. 

  135. # ------------------------------------------------------------------------------------------------------------

  136. # Static MIDI CC list

  137. 

  138. MIDI_CC_LIST = (

  139.     "01 [0x01] Modulation",

  140.     "02 [0x02] Breath",

  141.     "04 [0x04] Foot",

  142.     "05 [0x05] Portamento",

  143.     "07 [0x07] Volume",

  144.     "08 [0x08] Balance",

  145.     "10 [0x0A] Pan",

  146.     "11 [0x0B] Expression",

  147.     "12 [0x0C] FX Control 1",

  148.     "13 [0x0D] FX Control 2",

  149.     "16 [0x10] General Purpose 1",

  150.     "17 [0x11] General Purpose 2",

  151.     "18 [0x12] General Purpose 3",

  152.     "19 [0x13] General Purpose 4",

  153.     "70 [0x46] Control 1 [Variation]",

  154.     "71 [0x47] Control 2 [Timbre]",

  155.     "72 [0x48] Control 3 [Release]",

  156.     "73 [0x49] Control 4 [Attack]",

  157.     "74 [0x4A] Control 5 [Brightness]",

  158.     "75 [0x4B] Control 6 [Decay]",

  159.     "76 [0x4C] Control 7 [Vib Rate]",

  160.     "77 [0x4D] Control 8 [Vib Depth]",

  161.     "78 [0x4E] Control 9 [Vib Delay]",

  162.     "79 [0x4F] Control 10 [Undefined]",

  163.     "80 [0x50] General Purpose 5",

  164.     "81 [0x51] General Purpose 6",

  165.     "82 [0x52] General Purpose 7",

  166.     "83 [0x53] General Purpose 8",

  167.     "84 [0x54] Portamento Control",

  168.     "91 [0x5B] FX 1 Depth [Reverb]",

  169.     "92 [0x5C] FX 2 Depth [Tremolo]",

  170.     "93 [0x5D] FX 3 Depth [Chorus]",

  171.     "94 [0x5E] FX 4 Depth [Detune]",

  172.     "95 [0x5F] FX 5 Depth [Phaser]"

  173. )

  174. 

  175. MAX_MIDI_CC_LIST_ITEM = 95

  176. 

  177. # ------------------------------------------------------------------------------------------------------------

  178. # PatchCanvas defines

  179. 

  180. CANVAS_ANTIALIASING_SMALL = 1

  181. CANVAS_EYECANDY_SMALL     = 1

  182. 

  183. # ------------------------------------------------------------------------------------------------------------

  184. # Carla Settings keys

  185. 

  186. CARLA_KEY_MAIN_PROJECT_FOLDER   = "Main/ProjectFolder"   # str

  187. CARLA_KEY_MAIN_USE_PRO_THEME    = "Main/UseProTheme"     # bool

  188. CARLA_KEY_MAIN_PRO_THEME_COLOR  = "Main/ProThemeColor"   # str

  189. CARLA_KEY_MAIN_REFRESH_INTERVAL = "Main/RefreshInterval" # int

  190. CARLA_KEY_MAIN_CONFIRM_EXIT     = "Main/ConfirmExit"     # bool

  191. CARLA_KEY_MAIN_CLASSIC_SKIN     = "Main/ClassicSkin"     # bool

  192. CARLA_KEY_MAIN_SHOW_LOGS        = "Main/ShowLogs"        # bool

  193. CARLA_KEY_MAIN_SYSTEM_ICONS     = "Main/SystemIcons"     # bool

  194. CARLA_KEY_MAIN_EXPERIMENTAL     = "Main/Experimental"    # bool

  195. 

  196. CARLA_KEY_CANVAS_THEME             = "Canvas/Theme"           # str

  197. CARLA_KEY_CANVAS_SIZE              = "Canvas/Size"            # str "NxN"

  198. CARLA_KEY_CANVAS_USE_BEZIER_LINES  = "Canvas/UseBezierLines"  # bool

  199. CARLA_KEY_CANVAS_AUTO_HIDE_GROUPS  = "Canvas/AutoHideGroups"  # bool

  200. CARLA_KEY_CANVAS_AUTO_SELECT_ITEMS = "Canvas/AutoSelectItems" # bool

  201. CARLA_KEY_CANVAS_EYE_CANDY         = "Canvas/EyeCandy2"       # bool

  202. CARLA_KEY_CANVAS_FANCY_EYE_CANDY   = "Canvas/FancyEyeCandy"   # bool

  203. CARLA_KEY_CANVAS_USE_OPENGL        = "Canvas/UseOpenGL"       # bool

  204. CARLA_KEY_CANVAS_ANTIALIASING      = "Canvas/Antialiasing"    # enum

  205. CARLA_KEY_CANVAS_HQ_ANTIALIASING   = "Canvas/HQAntialiasing"  # bool

  206. CARLA_KEY_CANVAS_INLINE_DISPLAYS   = "Canvas/InlineDisplays"  # bool

  207. CARLA_KEY_CANVAS_FULL_REPAINTS     = "Canvas/FullRepaints"    # bool

  208. 

  209. CARLA_KEY_ENGINE_DRIVER_PREFIX         = "Engine/Driver-"

  210. CARLA_KEY_ENGINE_AUDIO_DRIVER          = "Engine/AudioDriver"         # str

  211. CARLA_KEY_ENGINE_PROCESS_MODE          = "Engine/ProcessMode"         # enum

  212. CARLA_KEY_ENGINE_TRANSPORT_MODE        = "Engine/TransportMode"       # enum

  213. CARLA_KEY_ENGINE_TRANSPORT_EXTRA       = "Engine/TransportExtra"      # str

  214. CARLA_KEY_ENGINE_FORCE_STEREO          = "Engine/ForceStereo"         # bool

  215. CARLA_KEY_ENGINE_PREFER_PLUGIN_BRIDGES = "Engine/PreferPluginBridges" # bool

  216. CARLA_KEY_ENGINE_PREFER_UI_BRIDGES     = "Engine/PreferUiBridges"     # bool

  217. CARLA_KEY_ENGINE_MANAGE_UIS            = "Engine/ManageUIs"           # bool

  218. CARLA_KEY_ENGINE_UIS_ALWAYS_ON_TOP     = "Engine/UIsAlwaysOnTop"      # bool

  219. CARLA_KEY_ENGINE_MAX_PARAMETERS        = "Engine/MaxParameters"       # int

  220. CARLA_KEY_ENGINE_RESET_XRUNS           = "Engine/ResetXruns"          # bool

  221. CARLA_KEY_ENGINE_UI_BRIDGES_TIMEOUT    = "Engine/UiBridgesTimeout"    # int

  222. 

  223. CARLA_KEY_OSC_ENABLED          = "OSC/Enabled"

  224. CARLA_KEY_OSC_TCP_PORT_ENABLED = "OSC/TCPEnabled"

  225. CARLA_KEY_OSC_TCP_PORT_NUMBER  = "OSC/TCPNumber"

  226. CARLA_KEY_OSC_TCP_PORT_RANDOM  = "OSC/TCPRandom"

  227. CARLA_KEY_OSC_UDP_PORT_ENABLED = "OSC/UDPEnabled"

  228. CARLA_KEY_OSC_UDP_PORT_NUMBER  = "OSC/UDPNumber"

  229. CARLA_KEY_OSC_UDP_PORT_RANDOM  = "OSC/UDPRandom"

  230. 

  231. CARLA_KEY_PATHS_AUDIO = "Paths/Audio"

  232. CARLA_KEY_PATHS_MIDI  = "Paths/MIDI"

  233. 

  234. CARLA_KEY_PATHS_LADSPA = "Paths/LADSPA"

  235. CARLA_KEY_PATHS_DSSI   = "Paths/DSSI"

  236. CARLA_KEY_PATHS_LV2    = "Paths/LV2"

  237. CARLA_KEY_PATHS_VST2   = "Paths/VST2"

  238. CARLA_KEY_PATHS_VST3   = "Paths/VST3"

  239. CARLA_KEY_PATHS_SF2    = "Paths/SF2"

  240. CARLA_KEY_PATHS_SFZ    = "Paths/SFZ"

  241. CARLA_KEY_PATHS_JSFX   = "Paths/JSFX"

  242. 

  243. CARLA_KEY_WINE_EXECUTABLE      = "Wine/Executable"     # str

  244. CARLA_KEY_WINE_AUTO_PREFIX     = "Wine/AutoPrefix"     # bool

  245. CARLA_KEY_WINE_FALLBACK_PREFIX = "Wine/FallbackPrefix" # str

  246. CARLA_KEY_WINE_RT_PRIO_ENABLED = "Wine/RtPrioEnabled"  # bool

  247. CARLA_KEY_WINE_BASE_RT_PRIO    = "Wine/BaseRtPrio"     # int

  248. CARLA_KEY_WINE_SERVER_RT_PRIO  = "Wine/ServerRtPrio"   # int

  249. 

  250. CARLA_KEY_EXPERIMENTAL_PLUGIN_BRIDGES        = "Experimental/PluginBridges"       # bool

  251. CARLA_KEY_EXPERIMENTAL_WINE_BRIDGES          = "Experimental/WineBridges"         # bool

  252. CARLA_KEY_EXPERIMENTAL_JACK_APPS             = "Experimental/JackApplications"    # bool

  253. CARLA_KEY_EXPERIMENTAL_EXPORT_LV2            = "Experimental/ExportLV2"           # bool

  254. CARLA_KEY_EXPERIMENTAL_PREVENT_BAD_BEHAVIOUR = "Experimental/PreventBadBehaviour" # bool

  255. CARLA_KEY_EXPERIMENTAL_LOAD_LIB_GLOBAL       = "Experimental/LoadLibGlobal"       # bool

  256. 

  257. # if pro theme is on and color is black

  258. CARLA_KEY_CUSTOM_PAINTING = "UseCustomPainting" # bool

  259. 

  260. # ------------------------------------------------------------------------------------------------------------

  261. # Carla Settings defaults

  262. 

  263. # Main

  264. CARLA_DEFAULT_MAIN_PROJECT_FOLDER   = HOME

  265. CARLA_DEFAULT_MAIN_USE_PRO_THEME    = True

  266. CARLA_DEFAULT_MAIN_PRO_THEME_COLOR  = "Black"

  267. CARLA_DEFAULT_MAIN_REFRESH_INTERVAL = 20

  268. CARLA_DEFAULT_MAIN_CONFIRM_EXIT     = True

  269. CARLA_DEFAULT_MAIN_CLASSIC_SKIN     = False

  270. CARLA_DEFAULT_MAIN_SHOW_LOGS        = bool(not WINDOWS)

  271. CARLA_DEFAULT_MAIN_SYSTEM_ICONS     = False

  272. CARLA_DEFAULT_MAIN_EXPERIMENTAL     = False

  273. 

  274. # Canvas

  275. CARLA_DEFAULT_CANVAS_THEME             = "Modern Dark"

  276. CARLA_DEFAULT_CANVAS_SIZE              = "3100x2400"

  277. CARLA_DEFAULT_CANVAS_SIZE_WIDTH        = 3100

  278. CARLA_DEFAULT_CANVAS_SIZE_HEIGHT       = 2400

  279. CARLA_DEFAULT_CANVAS_USE_BEZIER_LINES  = True

  280. CARLA_DEFAULT_CANVAS_AUTO_HIDE_GROUPS  = True

  281. CARLA_DEFAULT_CANVAS_AUTO_SELECT_ITEMS = False

  282. CARLA_DEFAULT_CANVAS_EYE_CANDY         = True

  283. CARLA_DEFAULT_CANVAS_FANCY_EYE_CANDY   = False

  284. CARLA_DEFAULT_CANVAS_USE_OPENGL        = False

  285. CARLA_DEFAULT_CANVAS_ANTIALIASING      = CANVAS_ANTIALIASING_SMALL

  286. CARLA_DEFAULT_CANVAS_HQ_ANTIALIASING   = False

  287. CARLA_DEFAULT_CANVAS_INLINE_DISPLAYS   = False

  288. CARLA_DEFAULT_CANVAS_FULL_REPAINTS     = False

  289. 

  290. # Engine

  291. CARLA_DEFAULT_FORCE_STEREO          = False

  292. CARLA_DEFAULT_PREFER_PLUGIN_BRIDGES = False

  293. CARLA_DEFAULT_PREFER_UI_BRIDGES     = True

  294. CARLA_DEFAULT_MANAGE_UIS            = True

  295. CARLA_DEFAULT_UIS_ALWAYS_ON_TOP     = False

  296. CARLA_DEFAULT_MAX_PARAMETERS        = MAX_DEFAULT_PARAMETERS

  297. CARLA_DEFAULT_RESET_XRUNS           = False

  298. CARLA_DEFAULT_UI_BRIDGES_TIMEOUT    = 4000

  299. 

  300. CARLA_DEFAULT_AUDIO_BUFFER_SIZE     = 512

  301. CARLA_DEFAULT_AUDIO_SAMPLE_RATE     = 44100

  302. CARLA_DEFAULT_AUDIO_TRIPLE_BUFFER   = False

  303. 

  304. if HAIKU:

  305.     CARLA_DEFAULT_AUDIO_DRIVER = "SDL"

  306. elif MACOS:

  307.     CARLA_DEFAULT_AUDIO_DRIVER = "CoreAudio"

  308. elif WINDOWS:

  309.     CARLA_DEFAULT_AUDIO_DRIVER = "Windows Audio"

  310. elif os.path.exists("/usr/bin/jackd") or os.path.exists("/usr/bin/jackdbus") or os.path.exists("/usr/bin/pw-jack"):

  311.     CARLA_DEFAULT_AUDIO_DRIVER = "JACK"

  312. else:

  313.     CARLA_DEFAULT_AUDIO_DRIVER = "PulseAudio"

  314. 

  315. if CARLA_DEFAULT_AUDIO_DRIVER == "JACK":

  316.     CARLA_DEFAULT_PROCESS_MODE   = ENGINE_PROCESS_MODE_MULTIPLE_CLIENTS

  317.     CARLA_DEFAULT_TRANSPORT_MODE = ENGINE_TRANSPORT_MODE_JACK

  318. else:

  319.     CARLA_DEFAULT_PROCESS_MODE   = ENGINE_PROCESS_MODE_PATCHBAY

  320.     CARLA_DEFAULT_TRANSPORT_MODE = ENGINE_TRANSPORT_MODE_INTERNAL

  321. 

  322. # OSC

  323. CARLA_DEFAULT_OSC_ENABLED = not (MACOS or WINDOWS)

  324. CARLA_DEFAULT_OSC_TCP_PORT_ENABLED = True

  325. CARLA_DEFAULT_OSC_TCP_PORT_NUMBER  = 22752

  326. CARLA_DEFAULT_OSC_TCP_PORT_RANDOM  = False

  327. CARLA_DEFAULT_OSC_UDP_PORT_ENABLED = True

  328. CARLA_DEFAULT_OSC_UDP_PORT_NUMBER  = 22752

  329. CARLA_DEFAULT_OSC_UDP_PORT_RANDOM  = False

  330. 

  331. # Wine

  332. CARLA_DEFAULT_WINE_EXECUTABLE      = "wine"

  333. CARLA_DEFAULT_WINE_AUTO_PREFIX     = True

  334. CARLA_DEFAULT_WINE_FALLBACK_PREFIX = os.path.expanduser("~/.wine")

  335. CARLA_DEFAULT_WINE_RT_PRIO_ENABLED = True

  336. CARLA_DEFAULT_WINE_BASE_RT_PRIO    = 15

  337. CARLA_DEFAULT_WINE_SERVER_RT_PRIO  = 10

  338. 

  339. # Experimental

  340. CARLA_DEFAULT_EXPERIMENTAL_PLUGIN_BRIDGES        = False

  341. CARLA_DEFAULT_EXPERIMENTAL_WINE_BRIDGES          = False

  342. CARLA_DEFAULT_EXPERIMENTAL_JACK_APPS             = False

  343. CARLA_DEFAULT_EXPERIMENTAL_LV2_EXPORT            = False

  344. CARLA_DEFAULT_EXPERIMENTAL_PREVENT_BAD_BEHAVIOUR = False

  345. CARLA_DEFAULT_EXPERIMENTAL_LOAD_LIB_GLOBAL       = False

  346. 

  347. # ------------------------------------------------------------------------------------------------------------

  348. # Default File Folders

  349. 

  350. CARLA_DEFAULT_FILE_PATH_AUDIO = []

  351. CARLA_DEFAULT_FILE_PATH_MIDI  = []

  352. 

  353. # ------------------------------------------------------------------------------------------------------------

  354. # Default Plugin Folders (get)

  355. 

  356. DEFAULT_LADSPA_PATH = ""

  357. DEFAULT_DSSI_PATH   = ""

  358. DEFAULT_LV2_PATH    = ""

  359. DEFAULT_VST2_PATH   = ""

  360. DEFAULT_VST3_PATH   = ""

  361. DEFAULT_SF2_PATH    = ""

  362. DEFAULT_SFZ_PATH    = ""

  363. DEFAULT_JSFX_PATH   = ""

  364. 

  365. if WINDOWS:

  366.     splitter = ";"

  367. 

  368.     APPDATA = os.getenv("APPDATA")

  369.     LOCALAPPDATA = os.getenv("LOCALAPPDATA", APPDATA)

  370.     PROGRAMFILES = os.getenv("PROGRAMFILES")

  371.     PROGRAMFILESx86 = os.getenv("PROGRAMFILES(x86)")

  372.     COMMONPROGRAMFILES = os.getenv("COMMONPROGRAMFILES")

  373.     COMMONPROGRAMFILESx86 = os.getenv("COMMONPROGRAMFILES(x86)")

  374. 

  375.     # Small integrity tests

  376.     if not APPDATA:

  377.         qFatal("APPDATA variable not set, cannot continue")

  378.         sys.exit(1)

  379. 

  380.     if not PROGRAMFILES:

  381.         qFatal("PROGRAMFILES variable not set, cannot continue")

  382.         sys.exit(1)

  383. 

  384.     if not COMMONPROGRAMFILES:

  385.         qFatal("COMMONPROGRAMFILES variable not set, cannot continue")

  386.         sys.exit(1)

  387. 

  388.     DEFAULT_LADSPA_PATH  = APPDATA + "\\LADSPA"

  389.     DEFAULT_LADSPA_PATH += ";" + PROGRAMFILES + "\\LADSPA"

  390. 

  391.     DEFAULT_DSSI_PATH    = APPDATA + "\\DSSI"

  392.     DEFAULT_DSSI_PATH   += ";" + PROGRAMFILES + "\\DSSI"

  393. 

  394.     DEFAULT_LV2_PATH     = APPDATA + "\\LV2"

  395.     DEFAULT_LV2_PATH    += ";" + COMMONPROGRAMFILES + "\\LV2"

  396. 

  397.     DEFAULT_VST2_PATH    = PROGRAMFILES + "\\VstPlugins"

  398.     DEFAULT_VST2_PATH   += ";" + PROGRAMFILES + "\\Steinberg\\VstPlugins"

  399. 

  400.     DEFAULT_JSFX_PATH    = APPDATA + "\\REAPER\\Effects"

  401.     #DEFAULT_JSFX_PATH   += ";" + PROGRAMFILES + "\\REAPER\\InstallData\\Effects"

  402. 

  403.     if kIs64bit:

  404.         DEFAULT_VST2_PATH  += ";" + COMMONPROGRAMFILES + "\\VST2"

  405. 

  406.     DEFAULT_VST3_PATH    = COMMONPROGRAMFILES + "\\VST3"

  407.     DEFAULT_VST3_PATH   += ";" + LOCALAPPDATA + "\\Programs\\Common\\VST3"

  408. 

  409.     DEFAULT_SF2_PATH     = APPDATA + "\\SF2"

  410.     DEFAULT_SFZ_PATH     = APPDATA + "\\SFZ"

  411. 

  412.     if PROGRAMFILESx86:

  413.         DEFAULT_LADSPA_PATH += ";" + PROGRAMFILESx86 + "\\LADSPA"

  414.         DEFAULT_DSSI_PATH   += ";" + PROGRAMFILESx86 + "\\DSSI"

  415.         DEFAULT_VST2_PATH   += ";" + PROGRAMFILESx86 + "\\VstPlugins"

  416.         DEFAULT_VST2_PATH   += ";" + PROGRAMFILESx86 + "\\Steinberg\\VstPlugins"

  417.         #DEFAULT_JSFX_PATH   += ";" + PROGRAMFILESx86 + "\\REAPER\\InstallData\\Effects"

  418. 

  419.     if COMMONPROGRAMFILESx86:

  420.         DEFAULT_VST3_PATH   += COMMONPROGRAMFILESx86 + "\\VST3"

  421. 

  422. elif HAIKU:

  423.     splitter = ":"

  424. 

  425.     DEFAULT_LADSPA_PATH  = HOME + "/.ladspa"

  426.     DEFAULT_LADSPA_PATH += ":/system/add-ons/media/ladspaplugins"

  427.     DEFAULT_LADSPA_PATH += ":/system/lib/ladspa"

  428. 

  429.     DEFAULT_DSSI_PATH    = HOME + "/.dssi"

  430.     DEFAULT_DSSI_PATH   += ":/system/add-ons/media/dssiplugins"

  431.     DEFAULT_DSSI_PATH   += ":/system/lib/dssi"

  432. 

  433.     DEFAULT_LV2_PATH     = HOME + "/.lv2"

  434.     DEFAULT_LV2_PATH    += ":/system/add-ons/media/lv2plugins"

  435. 

  436.     DEFAULT_VST2_PATH    = HOME + "/.vst"

  437.     DEFAULT_VST2_PATH   += ":/system/add-ons/media/vstplugins"

  438. 

  439.     DEFAULT_VST3_PATH    = HOME + "/.vst3"

  440.     DEFAULT_VST3_PATH   += ":/system/add-ons/media/vst3plugins"

  441. 

  442. elif MACOS:

  443.     splitter = ":"

  444. 

  445.     DEFAULT_LADSPA_PATH  = HOME + "/Library/Audio/Plug-Ins/LADSPA"

  446.     DEFAULT_LADSPA_PATH += ":/Library/Audio/Plug-Ins/LADSPA"

  447. 

  448.     DEFAULT_DSSI_PATH    = HOME + "/Library/Audio/Plug-Ins/DSSI"

  449.     DEFAULT_DSSI_PATH   += ":/Library/Audio/Plug-Ins/DSSI"

  450. 

  451.     DEFAULT_LV2_PATH     = HOME + "/Library/Audio/Plug-Ins/LV2"

  452.     DEFAULT_LV2_PATH    += ":/Library/Audio/Plug-Ins/LV2"

  453. 

  454.     DEFAULT_VST2_PATH    = HOME + "/Library/Audio/Plug-Ins/VST"

  455.     DEFAULT_VST2_PATH   += ":/Library/Audio/Plug-Ins/VST"

  456. 

  457.     DEFAULT_VST3_PATH    = HOME + "/Library/Audio/Plug-Ins/VST3"

  458.     DEFAULT_VST3_PATH   += ":/Library/Audio/Plug-Ins/VST3"

  459. 

  460.     DEFAULT_JSFX_PATH    = HOME + "/Library/Application Support/REAPER/Effects"

  461.     #DEFAULT_JSFX_PATH   += ":/Applications/REAPER.app/Contents/InstallFiles/Effects"

  462. 

  463. else:

  464.     CONFIG_HOME = os.getenv("XDG_CONFIG_HOME", HOME + "/.config")

  465. 

  466.     splitter = ":"

  467. 

  468.     DEFAULT_LADSPA_PATH  = HOME + "/.ladspa"

  469.     DEFAULT_LADSPA_PATH += ":/usr/lib/ladspa"

  470.     DEFAULT_LADSPA_PATH += ":/usr/local/lib/ladspa"

  471. 

  472.     DEFAULT_DSSI_PATH    = HOME + "/.dssi"

  473.     DEFAULT_DSSI_PATH   += ":/usr/lib/dssi"

  474.     DEFAULT_DSSI_PATH   += ":/usr/local/lib/dssi"

  475. 

  476.     DEFAULT_LV2_PATH     = HOME + "/.lv2"

  477.     DEFAULT_LV2_PATH    += ":/usr/lib/lv2"

  478.     DEFAULT_LV2_PATH    += ":/usr/local/lib/lv2"

  479. 

  480.     DEFAULT_VST2_PATH    = HOME + "/.vst"

  481.     DEFAULT_VST2_PATH   += ":/usr/lib/vst"

  482.     DEFAULT_VST2_PATH   += ":/usr/local/lib/vst"

  483. 

  484.     DEFAULT_VST2_PATH   += HOME + "/.lxvst"

  485.     DEFAULT_VST2_PATH   += ":/usr/lib/lxvst"

  486.     DEFAULT_VST2_PATH   += ":/usr/local/lib/lxvst"

  487. 

  488.     DEFAULT_VST3_PATH    = HOME + "/.vst3"

  489.     DEFAULT_VST3_PATH   += ":/usr/lib/vst3"

  490.     DEFAULT_VST3_PATH   += ":/usr/local/lib/vst3"

  491. 

  492.     DEFAULT_SF2_PATH     = HOME + "/.sounds/sf2"

  493.     DEFAULT_SF2_PATH    += ":" + HOME + "/.sounds/sf3"

  494.     DEFAULT_SF2_PATH    += ":/usr/share/sounds/sf2"

  495.     DEFAULT_SF2_PATH    += ":/usr/share/sounds/sf3"

  496.     DEFAULT_SF2_PATH    += ":/usr/share/soundfonts"

  497. 

  498.     DEFAULT_SFZ_PATH     = HOME + "/.sounds/sfz"

  499.     DEFAULT_SFZ_PATH    += ":/usr/share/sounds/sfz"

  500. 

  501.     DEFAULT_JSFX_PATH    = CONFIG_HOME + "/REAPER/Effects"

  502.     #DEFAULT_JSFX_PATH   += ":" + "/opt/REAPER/InstallData/Effects"

  503. 

  504. if not WINDOWS:

  505.     winePrefix = os.getenv("WINEPREFIX")

  506. 

  507.     if not winePrefix:

  508.         winePrefix = HOME + "/.wine"

  509. 

  510.     if os.path.exists(winePrefix):

  511.         DEFAULT_VST2_PATH += ":" + winePrefix + "/drive_c/Program Files/VstPlugins"

  512.         DEFAULT_VST3_PATH += ":" + winePrefix + "/drive_c/Program Files/Common Files/VST3"

  513. 

  514.         if kIs64bit and os.path.exists(winePrefix + "/drive_c/Program Files (x86)"):

  515.             DEFAULT_VST2_PATH += ":" + winePrefix + "/drive_c/Program Files (x86)/VstPlugins"

  516.             DEFAULT_VST3_PATH += ":" + winePrefix + "/drive_c/Program Files (x86)/Common Files/VST3"

  517. 

  518.     del winePrefix

  519. 

  520. # ------------------------------------------------------------------------------------------------------------

  521. # Default Plugin Folders (set)

  522. 

  523. readEnvVars = True

  524. 

  525. if WINDOWS:

  526.     # Check if running Wine. If yes, ignore env vars

  527.     # pylint: disable=import-error

  528.     from winreg import ConnectRegistry, OpenKey, CloseKey, HKEY_CURRENT_USER

  529.     # pylint: enable=import-error

  530.     _reg = ConnectRegistry(None, HKEY_CURRENT_USER)

  531. 

  532.     try:

  533.         _key = OpenKey(_reg, r"SOFTWARE\Wine")

  534.         CloseKey(_key)

  535.         del _key

  536.         readEnvVars = False

  537.     except:

  538.         pass

  539. 

  540.     CloseKey(_reg)

  541.     del _reg

  542. 

  543. if readEnvVars:

  544.     CARLA_DEFAULT_LADSPA_PATH = os.getenv("LADSPA_PATH", DEFAULT_LADSPA_PATH).split(splitter)

  545.     CARLA_DEFAULT_DSSI_PATH   = os.getenv("DSSI_PATH",   DEFAULT_DSSI_PATH).split(splitter)

  546.     CARLA_DEFAULT_LV2_PATH    = os.getenv("LV2_PATH",    DEFAULT_LV2_PATH).split(splitter)

  547.     CARLA_DEFAULT_VST2_PATH   = os.getenv("VST_PATH",    DEFAULT_VST2_PATH).split(splitter)

  548.     CARLA_DEFAULT_VST3_PATH   = os.getenv("VST3_PATH",   DEFAULT_VST3_PATH).split(splitter)

  549.     CARLA_DEFAULT_SF2_PATH    = os.getenv("SF2_PATH",    DEFAULT_SF2_PATH).split(splitter)

  550.     CARLA_DEFAULT_SFZ_PATH    = os.getenv("SFZ_PATH",    DEFAULT_SFZ_PATH).split(splitter)

  551.     CARLA_DEFAULT_JSFX_PATH   = os.getenv("JSFX_PATH",   DEFAULT_JSFX_PATH).split(splitter)

  552. 

  553. else:

  554.     CARLA_DEFAULT_LADSPA_PATH = DEFAULT_LADSPA_PATH.split(splitter)

  555.     CARLA_DEFAULT_DSSI_PATH   = DEFAULT_DSSI_PATH.split(splitter)

  556.     CARLA_DEFAULT_LV2_PATH    = DEFAULT_LV2_PATH.split(splitter)

  557.     CARLA_DEFAULT_VST2_PATH   = DEFAULT_VST2_PATH.split(splitter)

  558.     CARLA_DEFAULT_VST3_PATH   = DEFAULT_VST3_PATH.split(splitter)

  559.     CARLA_DEFAULT_SF2_PATH    = DEFAULT_SF2_PATH.split(splitter)

  560.     CARLA_DEFAULT_SFZ_PATH    = DEFAULT_SFZ_PATH.split(splitter)

  561.     CARLA_DEFAULT_JSFX_PATH   = DEFAULT_JSFX_PATH.split(splitter)

  562. 

  563. # ------------------------------------------------------------------------------------------------------------

  564. # Default Plugin Folders (cleanup)

  565. 

  566. del DEFAULT_LADSPA_PATH

  567. del DEFAULT_DSSI_PATH

  568. del DEFAULT_LV2_PATH

  569. del DEFAULT_VST2_PATH

  570. del DEFAULT_VST3_PATH

  571. del DEFAULT_SF2_PATH

  572. del DEFAULT_SFZ_PATH

  573. 

  574. # ------------------------------------------------------------------------------------------------------------

  575. # Global Carla object

  576. 

  577. class CarlaObject():

  578.     def __init__(self):

  579.         self.cnprefix = ""    # Client name prefix

  580.         self.gui      = None  # Host Window

  581.         self.nogui    = False # Skip UI

  582.         self.term     = False # Terminated by OS signal

  583.         self.utils    = None  # Utils object

  584. 

  585. gCarla = CarlaObject()

  586. 

  587. # ------------------------------------------------------------------------------------------------------------

  588. # Set CWD

  589. 

  590. CWD = sys.path[0]

  591. 

  592. if not CWD:

  593.     CWD = os.path.dirname(sys.argv[0])

  594. 

  595. # make it work with cxfreeze

  596. if os.path.isfile(CWD):

  597.     CWD = os.path.dirname(CWD)

  598.     if CWD.endswith("/lib"):

  599.         CWD = CWD.rsplit("/lib",1)[0]

  600.     CXFREEZE = True

  601.     if not WINDOWS:

  602.         os.environ['CARLA_MAGIC_FILE'] = os.path.join(CWD, "magic.mgc")

  603. else:

  604.     CXFREEZE = False

  605. 

  606. # ------------------------------------------------------------------------------------------------------------

  607. # Set DLL_EXTENSION

  608. 

  609. if WINDOWS:

  610.     DLL_EXTENSION = "dll"

  611. elif MACOS:

  612.     DLL_EXTENSION = "dylib"

  613. else:

  614.     DLL_EXTENSION = "so"

  615. 

  616. # ------------------------------------------------------------------------------------------------------------

  617. # Find decimal points for a parameter, using step and stepSmall

  618. 

  619. def countDecimalPoints(step, stepSmall):

  620.     if stepSmall >= 1.0:

  621.         return 0

  622.     if step >= 1.0:

  623.         return 2

  624. 

  625.     count = 0

  626.     value = fmod(abs(step), 1)

  627.     while 0.0001 < value < 0.999 and count < 6:

  628.         value = fmod(value*10, 1)

  629.         count += 1

  630. 

  631.     return count

  632. 

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

  634. # Check if a value is a number (float support)

  635. 

  636. def isNumber(value):

  637.     try:

  638.         float(value)

  639.         return True

  640.     except:

  641.         return False

  642. 

  643. # ------------------------------------------------------------------------------------------------------------

  644. # Convert a value to a list

  645. 

  646. def toList(value):

  647.     if value is None:

  648.         return []

  649.     if not isinstance(value, list):

  650.         return [value]

  651.     return value

  652. 

  653. # ------------------------------------------------------------------------------------------------------------

  654. # Get Icon from user theme, using our own as backup (Oxygen)

  655. 

  656. def getIcon(icon, size, qrcformat):

  657.     return QIcon.fromTheme(icon, QIcon(":/%ix%i/%s.%s" % (size, size, icon, qrcformat)))

  658. 

  659. # ------------------------------------------------------------------------------------------------------------

  660. # Handle some basic command-line arguments shared between all carla variants

  661. 

  662. def handleInitialCommandLineArguments(file):

  663.     initName  = os.path.basename(file) if (file is not None and os.path.dirname(file) in PATH) else sys.argv[0]

  664.     libPrefix = None

  665.     readPrefixNext = False

  666. 

  667.     for arg in sys.argv[1:]:

  668.         if arg.startswith("--with-appname="):

  669.             initName = os.path.basename(arg.replace("--with-appname=", ""))

  670. 

  671.         elif arg.startswith("--with-libprefix="):

  672.             libPrefix = arg.replace("--with-libprefix=", "")

  673. 

  674.         elif arg.startswith("--osc-gui="):

  675.             gCarla.nogui = int(arg.replace("--osc-gui=", ""))

  676. 

  677.         elif arg.startswith("--cnprefix="):

  678.             gCarla.cnprefix = arg.replace("--cnprefix=", "")

  679. 

  680.         elif arg == "--cnprefix":

  681.             readPrefixNext = True

  682. 

  683.         elif arg == "--gdb":

  684.             pass

  685. 

  686.         elif arg in ("-n", "--n", "-no-gui", "--no-gui", "-nogui", "--nogui"):

  687.             gCarla.nogui = True

  688. 

  689.         elif MACOS and arg.startswith("-psn_"):

  690.             pass

  691. 

  692.         elif arg in ("-h", "--h", "-help", "--help"):

  693.             print("Usage: %s [OPTION]... [FILE|URL]" % initName)

  694.             print("")

  695.             print(" where FILE can be a Carla project or preset file to be loaded, or URL if using Carla-Control")

  696.             print("")

  697.             print(" and OPTION can be one or more of the following:")

  698.             print("")

  699.             print("    --cnprefix\t Set a prefix for client names in multi-client mode.")

  700.             if isinstance(gCarla.nogui, bool):

  701.                 if X_LIBDIR_X is not None:

  702.                     print("    --gdb     \t Run Carla inside gdb.")

  703.                 print(" -n,--no-gui  \t Run Carla headless, don't show UI.")

  704.                 print("")

  705.             print(" -h,--help    \t Print this help text and exit.")

  706.             print(" -v,--version \t Print version information and exit.")

  707.             print("")

  708. 

  709.             if not isinstance(gCarla.nogui, bool):

  710.                 print("NOTE: when using %s the FILE is only valid the first time the backend is started" % initName)

  711.                 sys.exit(1)

  712. 

  713.             sys.exit(0)

  714. 

  715.         elif arg in ("-v", "--v", "-version", "--version"):

  716.             pathBinaries, pathResources = getPaths(libPrefix)

  717. 

  718.             print("Using Carla version %s" % VERSION)

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

  720.             print("  Qt version:     %s" % QT_VERSION_STR)

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

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

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

  724. 

  725.             sys.exit(1 if gCarla.nogui else 0)

  726. 

  727.         elif readPrefixNext:

  728.             readPrefixNext = False

  729.             gCarla.cnprefix = arg

  730. 

  731.     if gCarla.nogui and not isinstance(gCarla.nogui, bool):

  732.         if os.fork():

  733.             # pylint: disable=protected-access

  734.             os._exit(0)

  735.             # pylint: enable=protected-access

  736.         else:

  737.             os.setsid()

  738. 

  739.     return (initName, libPrefix)

  740. 

  741. # ------------------------------------------------------------------------------------------------------------

  742. # Get initial project file (as passed in the command-line parameters)

  743. 

  744. def getInitialProjectFile(skipExistCheck = False):

  745.     # NOTE: PyQt mishandles unicode characters, we directly use sys.argv instead of qApp->arguments()

  746.     # see https://riverbankcomputing.com/pipermail/pyqt/2015-January/035395.html

  747.     args = sys.argv[1:]

  748.     readPrefixNext = False

  749.     for arg in args:

  750.         if readPrefixNext:

  751.             readPrefixNext = False

  752.             continue

  753.         if arg.startswith("--cnprefix="):

  754.             continue

  755.         if arg.startswith("--osc-gui="):

  756.             continue

  757.         if arg.startswith("--with-appname="):

  758.             continue

  759.         if arg.startswith("--with-libprefix="):

  760.             continue

  761.         if arg == "--cnprefix":

  762.             readPrefixNext = True

  763.             continue

  764.         if arg in ("-n", "--n", "-no-gui", "--no-gui", "-nogui", "--nogui", "--gdb"):

  765.             continue

  766.         if MACOS and arg.startswith("-psn_"):

  767.             continue

  768.         arg = os.path.expanduser(arg)

  769.         if skipExistCheck or os.path.exists(arg):

  770.             return arg

  771. 

  772.     return None

  773. 

  774. # ------------------------------------------------------------------------------------------------------------

  775. # Get paths (binaries, resources)

  776. 

  777. def getPaths(libPrefix = None):

  778.     CWDl = CWD.lower()

  779. 

  780.     # adjust for special distros

  781.     libdir  = os.path.basename(os.path.normpath(X_LIBDIR_X))  if X_LIBDIR_X  else "lib"

  782.     datadir = os.path.basename(os.path.normpath(X_DATADIR_X)) if X_DATADIR_X else "share"

  783. 

  784.     # standalone, installed system-wide linux

  785.     if libPrefix is not None:

  786.         pathBinaries  = os.path.join(libPrefix, libdir, "carla")

  787.         pathResources = os.path.join(libPrefix, datadir, "carla", "resources")

  788. 

  789.     # standalone, local source

  790.     elif CWDl.endswith("frontend"):

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

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

  793. 

  794.     # plugin

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

  796.         # installed system-wide linux

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

  798.             pathBinaries  = os.path.abspath(os.path.join(CWD, "..", "..", "..", libdir, "carla"))

  799.             pathResources = CWD

  800. 

  801.         # local source

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

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

  804.             pathResources = CWD

  805. 

  806.         # other

  807.         else:

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

  809.             pathResources = CWD

  810. 

  811.     # everything else

  812.     else:

  813.         pathBinaries  = CWD

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

  815. 

  816.     return (pathBinaries, pathResources)

  817. 

  818. # ------------------------------------------------------------------------------------------------------------

  819. # Signal handler

  820. # TODO move to carla_host.py or something

  821. 

  822. def signalHandler(sig, frame):

  823.     if sig in (SIGINT, SIGTERM):

  824.         gCarla.term = True

  825.         if gCarla.gui is not None:

  826.             gCarla.gui.SIGTERM.emit()

  827. 

  828.     elif haveSIGUSR1 and sig == SIGUSR1:

  829.         if gCarla.gui is not None:

  830.             gCarla.gui.SIGUSR1.emit()

  831. 

  832. def setUpSignals():

  833.     signal(SIGINT,  signalHandler)

  834.     signal(SIGTERM, signalHandler)

  835. 

  836.     if not haveSIGUSR1:

  837.         return

  838. 

  839.     signal(SIGUSR1, signalHandler)

  840. 

  841. # ------------------------------------------------------------------------------------------------------------

  842. # QLineEdit and QPushButton combo

  843. 

  844. def getAndSetPath(parent, lineEdit):

  845.     newPath = QFileDialog.getExistingDirectory(parent, parent.tr("Set Path"), lineEdit.text(), QFileDialog.ShowDirsOnly)

  846.     if newPath:

  847.         lineEdit.setText(newPath)

  848.     return newPath

  849. 

  850. # ------------------------------------------------------------------------------------------------------------

  851. # Backwards-compatible horizontalAdvance/width call, depending on Qt version

  852. 

  853. def fontMetricsHorizontalAdvance(fontMetrics, string):

  854.     if QT_VERSION >= 0x50b00:

  855.         return fontMetrics.horizontalAdvance(string)

  856.     return fontMetrics.width(string)

  857. 

  858. # ------------------------------------------------------------------------------------------------------------

  859. # Custom QMessageBox which resizes itself to fit text

  860. 

  861. class QMessageBoxWithBetterWidth(QMessageBox):

  862.     def __init__(self, parent):

  863.         QMessageBox.__init__(self, parent)

  864. 

  865.     def showEvent(self, event):

  866.         fontMetrics = self.fontMetrics()

  867. 

  868.         lines = self.text().strip().split("\n") + self.informativeText().strip().split("\n")

  869. 

  870.         if lines:

  871.             width = 0

  872. 

  873.             for line in lines:

  874.                 width = max(fontMetricsHorizontalAdvance(fontMetrics, line), width)

  875. 

  876.             self.layout().setColumnMinimumWidth(2, width + 12)

  877. 

  878.         QMessageBox.showEvent(self, event)

  879. 

  880. # ------------------------------------------------------------------------------------------------------------

  881. # Safer QSettings class, which does not throw if type mismatches

  882. 

  883. class QSafeSettings(QSettings):

  884.     def value(self, key, defaultValue, valueType):

  885.         if not isinstance(defaultValue, valueType):

  886.             print("QSafeSettings.value() - defaultValue type mismatch for key", key)

  887. 

  888.         try:

  889.             return QSettings.value(self, key, defaultValue, valueType)

  890.         except:

  891.             return defaultValue

  892. 

  893. # ------------------------------------------------------------------------------------------------------------

  894. # Custom MessageBox

  895. 

  896. # pylint: disable=too-many-arguments

  897. def CustomMessageBox(parent, icon, title, text,

  898.                      extraText="",

  899.                      buttons=QMessageBox.Yes|QMessageBox.No,

  900.                      defButton=QMessageBox.No):

  901.     msgBox = QMessageBoxWithBetterWidth(parent)

  902.     msgBox.setIcon(icon)

  903.     msgBox.setWindowTitle(title)

  904.     msgBox.setText(text)

  905.     msgBox.setInformativeText(extraText)

  906.     msgBox.setStandardButtons(buttons)

  907.     msgBox.setDefaultButton(defButton)

  908.     return msgBox.exec_()

  909. # pylint: enable=too-many-arguments

  910. 

  911. # ------------------------------------------------------------------------------------------------------------