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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) 2011-2020 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. # Config

  21. 

  22. # These will be modified during install

  23. X_LIBDIR_X = None

  24. X_DATADIR_X = None

  25. 

  26. # ------------------------------------------------------------------------------------------------------------

  27. # Imports (Global)

  28. 

  29. import os

  30. import sys

  31. 

  32. from math import fmod

  33. 

  34. # ------------------------------------------------------------------------------------------------------------

  35. # Imports (Signal)

  36. 

  37. from signal import signal, SIGINT, SIGTERM

  38. 

  39. try:

  40.     from signal import SIGUSR1

  41.     haveSIGUSR1 = True

  42. except:

  43.     haveSIGUSR1 = False

  44. 

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

  46. # Imports (PyQt5)

  47. 

  48. from PyQt5.Qt import PYQT_VERSION_STR

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

  50. from PyQt5.QtGui import QIcon

  51. from PyQt5.QtWidgets import QFileDialog, QMessageBox

  52. 

  53. # ------------------------------------------------------------------------------------------------------------

  54. # Imports (Custom)

  55. 

  56. from carla_backend import (

  57.     kIs64bit, HAIKU, LINUX, MACOS, WINDOWS,

  58.     MAX_DEFAULT_PARAMETERS,

  59.     ENGINE_PROCESS_MODE_MULTIPLE_CLIENTS,

  60.     ENGINE_PROCESS_MODE_PATCHBAY,

  61.     ENGINE_TRANSPORT_MODE_INTERNAL,

  62.     ENGINE_TRANSPORT_MODE_JACK

  63. )

  64. 

  65. # ------------------------------------------------------------------------------------------------------------

  66. # Platform specific stuff

  67. 

  68. if WINDOWS:

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

  70. 

  71. # ------------------------------------------------------------------------------------------------------------

  72. # Set Version

  73. 

  74. VERSION = "2.2.0-beta1"

  75. 

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

  77. # Set TMP

  78. 

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

  80. 

  81. if envTMP is None:

  82.     if WINDOWS:

  83.         qWarning("TMP variable not set")

  84.     TMP = QDir.tempPath()

  85. else:

  86.     TMP = envTMP

  87. 

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

  89.     qWarning("TMP does not exist")

  90.     TMP = "/"

  91. 

  92. del envTMP

  93. 

  94. # ------------------------------------------------------------------------------------------------------------

  95. # Set HOME

  96. 

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

  98. 

  99. if envHOME is None:

  100.     if LINUX or MACOS:

  101.         qWarning("HOME variable not set")

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

  103. else:

  104.     HOME = envHOME

  105. 

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

  107.     qWarning("HOME does not exist")

  108.     HOME = TMP

  109. 

  110. del envHOME

  111. 

  112. # ------------------------------------------------------------------------------------------------------------

  113. # Set PATH

  114. 

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

  116. 

  117. if envPATH is None:

  118.     qWarning("PATH variable not set")

  119.     if MACOS:

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

  121.     elif WINDOWS:

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

  123.     else:

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

  125. else:

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

  127. 

  128. del envPATH

  129. 

  130. # ------------------------------------------------------------------------------------------------------------

  131. # Static MIDI CC list

  132. 

  133. MIDI_CC_LIST = (

  134.     "01 [0x01] Modulation",

  135.     "02 [0x02] Breath",

  136.     "04 [0x04] Foot",

  137.     "05 [0x05] Portamento",

  138.     "07 [0x07] Volume",

  139.     "02 [0x08] Balance",

  140.     "10 [0x0A] Pan",

  141.     "11 [0x0B] Expression",

  142.     "12 [0x0C] FX Control 1",

  143.     "13 [0x0D] FX Control 2",

  144.     "16 [0x10] General Purpose 1",

  145.     "17 [0x11] General Purpose 2",

  146.     "18 [0x12] General Purpose 3",

  147.     "19 [0x13] General Purpose 4",

  148.     "70 [0x46] Control 1 [Variation]",

  149.     "71 [0x47] Control 2 [Timbre]",

  150.     "72 [0x48] Control 3 [Release]",

  151.     "73 [0x49] Control 4 [Attack]",

  152.     "74 [0x4A] Control 5 [Brightness]",

  153.     "75 [0x4B] Control 6 [Decay]",

  154.     "76 [0x4C] Control 7 [Vib Rate]",

  155.     "77 [0x4D] Control 8 [Vib Depth]",

  156.     "78 [0x4E] Control 9 [Vib Delay]",

  157.     "79 [0x4F] Control 10 [Undefined]",

  158.     "80 [0x50] General Purpose 5",

  159.     "81 [0x51] General Purpose 6",

  160.     "82 [0x52] General Purpose 7",

  161.     "83 [0x53] General Purpose 8",

  162.     "84 [0x54] Portamento Control",

  163.     "91 [0x5B] FX 1 Depth [Reverb]",

  164.     "92 [0x5C] FX 2 Depth [Tremolo]",

  165.     "93 [0x5D] FX 3 Depth [Chorus]",

  166.     "94 [0x5E] FX 4 Depth [Detune]",

  167.     "95 [0x5F] FX 5 Depth [Phaser]"

  168. )

  169. 

  170. MAX_MIDI_CC_LIST_ITEM = 95

  171. 

  172. # ------------------------------------------------------------------------------------------------------------

  173. # PatchCanvas defines

  174. 

  175. CANVAS_ANTIALIASING_SMALL = 1

  176. CANVAS_EYECANDY_SMALL     = 1

  177. 

  178. # ------------------------------------------------------------------------------------------------------------

  179. # Carla Settings keys

  180. 

  181. CARLA_KEY_MAIN_PROJECT_FOLDER   = "Main/ProjectFolder"   # str

  182. CARLA_KEY_MAIN_USE_PRO_THEME    = "Main/UseProTheme"     # bool

  183. CARLA_KEY_MAIN_PRO_THEME_COLOR  = "Main/ProThemeColor"   # str

  184. CARLA_KEY_MAIN_REFRESH_INTERVAL = "Main/RefreshInterval" # int

  185. CARLA_KEY_MAIN_CONFIRM_EXIT     = "Main/ConfirmExit"     # bool

  186. CARLA_KEY_MAIN_SHOW_LOGS        = "Main/ShowLogs"        # bool

  187. CARLA_KEY_MAIN_EXPERIMENTAL     = "Main/Experimental"    # bool

  188. 

  189. CARLA_KEY_CANVAS_THEME             = "Canvas/Theme"           # str

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

  191. CARLA_KEY_CANVAS_USE_BEZIER_LINES  = "Canvas/UseBezierLines"  # bool

  192. CARLA_KEY_CANVAS_AUTO_HIDE_GROUPS  = "Canvas/AutoHideGroups"  # bool

  193. CARLA_KEY_CANVAS_AUTO_SELECT_ITEMS = "Canvas/AutoSelectItems" # bool

  194. CARLA_KEY_CANVAS_EYE_CANDY         = "Canvas/EyeCandy2"       # bool

  195. CARLA_KEY_CANVAS_FANCY_EYE_CANDY   = "Canvas/FancyEyeCandy"   # bool

  196. CARLA_KEY_CANVAS_USE_OPENGL        = "Canvas/UseOpenGL"       # bool

  197. CARLA_KEY_CANVAS_ANTIALIASING      = "Canvas/Antialiasing"    # enum

  198. CARLA_KEY_CANVAS_HQ_ANTIALIASING   = "Canvas/HQAntialiasing"  # bool

  199. CARLA_KEY_CANVAS_INLINE_DISPLAYS   = "Canvas/InlineDisplays"  # bool

  200. CARLA_KEY_CANVAS_FULL_REPAINTS     = "Canvas/FullRepaints"    # bool

  201. 

  202. CARLA_KEY_ENGINE_DRIVER_PREFIX         = "Engine/Driver-"

  203. CARLA_KEY_ENGINE_AUDIO_DRIVER          = "Engine/AudioDriver"         # str

  204. CARLA_KEY_ENGINE_PROCESS_MODE          = "Engine/ProcessMode"         # enum

  205. CARLA_KEY_ENGINE_TRANSPORT_MODE        = "Engine/TransportMode"       # enum

  206. CARLA_KEY_ENGINE_TRANSPORT_EXTRA       = "Engine/TransportExtra"      # str

  207. CARLA_KEY_ENGINE_FORCE_STEREO          = "Engine/ForceStereo"         # bool

  208. CARLA_KEY_ENGINE_PREFER_PLUGIN_BRIDGES = "Engine/PreferPluginBridges" # bool

  209. CARLA_KEY_ENGINE_PREFER_UI_BRIDGES     = "Engine/PreferUiBridges"     # bool

  210. CARLA_KEY_ENGINE_MANAGE_UIS            = "Engine/ManageUIs"           # bool

  211. CARLA_KEY_ENGINE_UIS_ALWAYS_ON_TOP     = "Engine/UIsAlwaysOnTop"      # bool

  212. CARLA_KEY_ENGINE_MAX_PARAMETERS        = "Engine/MaxParameters"       # int

  213. CARLA_KEY_ENGINE_RESET_XRUNS           = "Engine/ResetXruns"          # bool

  214. CARLA_KEY_ENGINE_UI_BRIDGES_TIMEOUT    = "Engine/UiBridgesTimeout"    # int

  215. 

  216. CARLA_KEY_OSC_ENABLED          = "OSC/Enabled"

  217. CARLA_KEY_OSC_TCP_PORT_ENABLED = "OSC/TCPEnabled"

  218. CARLA_KEY_OSC_TCP_PORT_NUMBER  = "OSC/TCPNumber"

  219. CARLA_KEY_OSC_TCP_PORT_RANDOM  = "OSC/TCPRandom"

  220. CARLA_KEY_OSC_UDP_PORT_ENABLED = "OSC/UDPEnabled"

  221. CARLA_KEY_OSC_UDP_PORT_NUMBER  = "OSC/UDPNumber"

  222. CARLA_KEY_OSC_UDP_PORT_RANDOM  = "OSC/UDPRandom"

  223. 

  224. CARLA_KEY_PATHS_AUDIO = "Paths/Audio"

  225. CARLA_KEY_PATHS_MIDI  = "Paths/MIDI"

  226. 

  227. CARLA_KEY_PATHS_LADSPA = "Paths/LADSPA"

  228. CARLA_KEY_PATHS_DSSI   = "Paths/DSSI"

  229. CARLA_KEY_PATHS_LV2    = "Paths/LV2"

  230. CARLA_KEY_PATHS_VST2   = "Paths/VST2"

  231. CARLA_KEY_PATHS_VST3   = "Paths/VST3"

  232. CARLA_KEY_PATHS_SF2    = "Paths/SF2"

  233. CARLA_KEY_PATHS_SFZ    = "Paths/SFZ"

  234. 

  235. CARLA_KEY_WINE_EXECUTABLE      = "Wine/Executable"     # str

  236. CARLA_KEY_WINE_AUTO_PREFIX     = "Wine/AutoPrefix"     # bool

  237. CARLA_KEY_WINE_FALLBACK_PREFIX = "Wine/FallbackPrefix" # str

  238. CARLA_KEY_WINE_RT_PRIO_ENABLED = "Wine/RtPrioEnabled"  # bool

  239. CARLA_KEY_WINE_BASE_RT_PRIO    = "Wine/BaseRtPrio"     # int

  240. CARLA_KEY_WINE_SERVER_RT_PRIO  = "Wine/ServerRtPrio"   # int

  241. 

  242. CARLA_KEY_EXPERIMENTAL_PLUGIN_BRIDGES        = "Experimental/PluginBridges"       # bool

  243. CARLA_KEY_EXPERIMENTAL_WINE_BRIDGES          = "Experimental/WineBridges"         # bool

  244. CARLA_KEY_EXPERIMENTAL_JACK_APPS             = "Experimental/JackApplications"    # bool

  245. CARLA_KEY_EXPERIMENTAL_EXPORT_LV2            = "Experimental/ExportLV2"           # bool

  246. CARLA_KEY_EXPERIMENTAL_PREVENT_BAD_BEHAVIOUR = "Experimental/PreventBadBehaviour" # bool

  247. CARLA_KEY_EXPERIMENTAL_LOAD_LIB_GLOBAL       = "Experimental/LoadLibGlobal"       # bool

  248. 

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

  250. CARLA_KEY_CUSTOM_PAINTING = "UseCustomPainting" # bool

  251. 

  252. # ------------------------------------------------------------------------------------------------------------

  253. # Carla Settings defaults

  254. 

  255. # Main

  256. CARLA_DEFAULT_MAIN_PROJECT_FOLDER   = HOME

  257. CARLA_DEFAULT_MAIN_USE_PRO_THEME    = True

  258. CARLA_DEFAULT_MAIN_PRO_THEME_COLOR  = "Black"

  259. CARLA_DEFAULT_MAIN_REFRESH_INTERVAL = 20

  260. CARLA_DEFAULT_MAIN_CONFIRM_EXIT     = True

  261. CARLA_DEFAULT_MAIN_SHOW_LOGS        = bool(not WINDOWS)

  262. CARLA_DEFAULT_MAIN_EXPERIMENTAL     = False

  263. 

  264. # Canvas

  265. CARLA_DEFAULT_CANVAS_THEME             = "Modern Dark"

  266. CARLA_DEFAULT_CANVAS_SIZE              = "3100x2400"

  267. CARLA_DEFAULT_CANVAS_SIZE_WIDTH        = 3100

  268. CARLA_DEFAULT_CANVAS_SIZE_HEIGHT       = 2400

  269. CARLA_DEFAULT_CANVAS_USE_BEZIER_LINES  = True

  270. CARLA_DEFAULT_CANVAS_AUTO_HIDE_GROUPS  = True

  271. CARLA_DEFAULT_CANVAS_AUTO_SELECT_ITEMS = False

  272. CARLA_DEFAULT_CANVAS_EYE_CANDY         = True

  273. CARLA_DEFAULT_CANVAS_FANCY_EYE_CANDY   = False

  274. CARLA_DEFAULT_CANVAS_USE_OPENGL        = False

  275. CARLA_DEFAULT_CANVAS_ANTIALIASING      = CANVAS_ANTIALIASING_SMALL

  276. CARLA_DEFAULT_CANVAS_HQ_ANTIALIASING   = False

  277. CARLA_DEFAULT_CANVAS_INLINE_DISPLAYS   = False

  278. CARLA_DEFAULT_CANVAS_FULL_REPAINTS     = False

  279. 

  280. # Engine

  281. CARLA_DEFAULT_FORCE_STEREO          = False

  282. CARLA_DEFAULT_PREFER_PLUGIN_BRIDGES = False

  283. CARLA_DEFAULT_PREFER_UI_BRIDGES     = True

  284. CARLA_DEFAULT_MANAGE_UIS            = True

  285. CARLA_DEFAULT_UIS_ALWAYS_ON_TOP     = False

  286. CARLA_DEFAULT_MAX_PARAMETERS        = MAX_DEFAULT_PARAMETERS

  287. CARLA_DEFAULT_RESET_XRUNS           = False

  288. CARLA_DEFAULT_UI_BRIDGES_TIMEOUT    = 4000

  289. 

  290. CARLA_DEFAULT_AUDIO_BUFFER_SIZE     = 512

  291. CARLA_DEFAULT_AUDIO_SAMPLE_RATE     = 44100

  292. CARLA_DEFAULT_AUDIO_TRIPLE_BUFFER   = False

  293. 

  294. if WINDOWS:

  295.     CARLA_DEFAULT_AUDIO_DRIVER = "DirectSound"

  296. elif MACOS:

  297.     CARLA_DEFAULT_AUDIO_DRIVER = "CoreAudio"

  298. elif os.path.exists("/usr/bin/jackd") or os.path.exists("/usr/bin/jackdbus"):

  299.     CARLA_DEFAULT_AUDIO_DRIVER = "JACK"

  300. else:

  301.     CARLA_DEFAULT_AUDIO_DRIVER = "PulseAudio"

  302. 

  303. if CARLA_DEFAULT_AUDIO_DRIVER == "JACK":

  304.     CARLA_DEFAULT_PROCESS_MODE   = ENGINE_PROCESS_MODE_MULTIPLE_CLIENTS

  305.     CARLA_DEFAULT_TRANSPORT_MODE = ENGINE_TRANSPORT_MODE_JACK

  306. else:

  307.     CARLA_DEFAULT_PROCESS_MODE   = ENGINE_PROCESS_MODE_PATCHBAY

  308.     CARLA_DEFAULT_TRANSPORT_MODE = ENGINE_TRANSPORT_MODE_INTERNAL

  309. 

  310. # OSC

  311. CARLA_DEFAULT_OSC_ENABLED = not WINDOWS

  312. CARLA_DEFAULT_OSC_TCP_PORT_ENABLED = True

  313. CARLA_DEFAULT_OSC_TCP_PORT_NUMBER  = 22752

  314. CARLA_DEFAULT_OSC_TCP_PORT_RANDOM  = False

  315. CARLA_DEFAULT_OSC_UDP_PORT_ENABLED = True

  316. CARLA_DEFAULT_OSC_UDP_PORT_NUMBER  = 22752

  317. CARLA_DEFAULT_OSC_UDP_PORT_RANDOM  = False

  318. 

  319. # Wine

  320. CARLA_DEFAULT_WINE_EXECUTABLE      = "wine"

  321. CARLA_DEFAULT_WINE_AUTO_PREFIX     = True

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

  323. CARLA_DEFAULT_WINE_RT_PRIO_ENABLED = True

  324. CARLA_DEFAULT_WINE_BASE_RT_PRIO    = 15

  325. CARLA_DEFAULT_WINE_SERVER_RT_PRIO  = 10

  326. 

  327. # Experimental

  328. CARLA_DEFAULT_EXPERIMENTAL_PLUGIN_BRIDGES        = False

  329. CARLA_DEFAULT_EXPERIMENTAL_WINE_BRIDGES          = False

  330. CARLA_DEFAULT_EXPERIMENTAL_JACK_APPS             = False

  331. CARLA_DEFAULT_EXPERIMENTAL_LV2_EXPORT            = False

  332. CARLA_DEFAULT_EXPERIMENTAL_PREVENT_BAD_BEHAVIOUR = False

  333. CARLA_DEFAULT_EXPERIMENTAL_LOAD_LIB_GLOBAL       = False

  334. 

  335. # ------------------------------------------------------------------------------------------------------------

  336. # Default File Folders

  337. 

  338. CARLA_DEFAULT_FILE_PATH_AUDIO = []

  339. CARLA_DEFAULT_FILE_PATH_MIDI  = []

  340. 

  341. # ------------------------------------------------------------------------------------------------------------

  342. # Default Plugin Folders (get)

  343. 

  344. DEFAULT_LADSPA_PATH = ""

  345. DEFAULT_DSSI_PATH   = ""

  346. DEFAULT_LV2_PATH    = ""

  347. DEFAULT_VST2_PATH   = ""

  348. DEFAULT_VST3_PATH   = ""

  349. DEFAULT_SF2_PATH    = ""

  350. DEFAULT_SFZ_PATH    = ""

  351. 

  352. if WINDOWS:

  353.     splitter = ";"

  354. 

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

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

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

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

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

  360. 

  361.     # Small integrity tests

  362.     if not APPDATA:

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

  364.         sys.exit(1)

  365. 

  366.     if not PROGRAMFILES:

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

  368.         sys.exit(1)

  369. 

  370.     if not COMMONPROGRAMFILES:

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

  372.         sys.exit(1)

  373. 

  374.     DEFAULT_LADSPA_PATH  = APPDATA + "\\LADSPA"

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

  376. 

  377.     DEFAULT_DSSI_PATH    = APPDATA + "\\DSSI"

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

  379. 

  380.     DEFAULT_LV2_PATH     = APPDATA + "\\LV2"

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

  382. 

  383.     DEFAULT_VST2_PATH    = PROGRAMFILES + "\\VstPlugins"

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

  385. 

  386.     if kIs64bit:

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

  388. 

  389.     DEFAULT_VST3_PATH    = COMMONPROGRAMFILES + "\\VST3"

  390. 

  391.     DEFAULT_SF2_PATH     = APPDATA + "\\SF2"

  392.     DEFAULT_SFZ_PATH     = APPDATA + "\\SFZ"

  393. 

  394.     if PROGRAMFILESx86:

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

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

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

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

  399. 

  400.     if COMMONPROGRAMFILESx86:

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

  402. 

  403. elif HAIKU:

  404.     splitter = ":"

  405. 

  406.     DEFAULT_LADSPA_PATH  = HOME + "/.ladspa"

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

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

  409. 

  410.     DEFAULT_DSSI_PATH    = HOME + "/.dssi"

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

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

  413. 

  414.     DEFAULT_LV2_PATH     = HOME + "/.lv2"

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

  416. 

  417.     DEFAULT_VST2_PATH    = HOME + "/.vst"

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

  419. 

  420.     DEFAULT_VST3_PATH    = HOME + "/.vst3"

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

  422. 

  423. elif MACOS:

  424.     splitter = ":"

  425. 

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

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

  428. 

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

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

  431. 

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

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

  434. 

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

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

  437. 

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

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

  440. 

  441. else:

  442.     splitter = ":"

  443. 

  444.     DEFAULT_LADSPA_PATH  = HOME + "/.ladspa"

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

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

  447. 

  448.     DEFAULT_DSSI_PATH    = HOME + "/.dssi"

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

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

  451. 

  452.     DEFAULT_LV2_PATH     = HOME + "/.lv2"

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

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

  455. 

  456.     DEFAULT_VST2_PATH    = HOME + "/.vst"

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

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

  459. 

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

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

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

  463. 

  464.     DEFAULT_VST3_PATH    = HOME + "/.vst3"

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

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

  467. 

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

  469.     DEFAULT_SF2_PATH    += HOME + "/.sounds/sf3"

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

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

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

  473. 

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

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

  476. 

  477. if not WINDOWS:

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

  479. 

  480.     if not winePrefix:

  481.         winePrefix = HOME + "/.wine"

  482. 

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

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

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

  486. 

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

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

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

  490. 

  491.     del winePrefix

  492. 

  493. # ------------------------------------------------------------------------------------------------------------

  494. # Default Plugin Folders (set)

  495. 

  496. readEnvVars = True

  497. 

  498. if WINDOWS:

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

  500.     # pylint: disable=import-error

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

  502.     # pylint: enable=import-error

  503.     _reg = ConnectRegistry(None, HKEY_CURRENT_USER)

  504. 

  505.     try:

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

  507.         CloseKey(_key)

  508.         del _key

  509.         readEnvVars = False

  510.     except:

  511.         pass

  512. 

  513.     CloseKey(_reg)

  514.     del _reg

  515. 

  516. if readEnvVars:

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

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

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

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

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

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

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

  524. 

  525. else:

  526.     CARLA_DEFAULT_LADSPA_PATH = DEFAULT_LADSPA_PATH.split(splitter)

  527.     CARLA_DEFAULT_DSSI_PATH   = DEFAULT_DSSI_PATH.split(splitter)

  528.     CARLA_DEFAULT_LV2_PATH    = DEFAULT_LV2_PATH.split(splitter)

  529.     CARLA_DEFAULT_VST2_PATH   = DEFAULT_VST2_PATH.split(splitter)

  530.     CARLA_DEFAULT_VST3_PATH   = DEFAULT_VST3_PATH.split(splitter)

  531.     CARLA_DEFAULT_SF2_PATH    = DEFAULT_SF2_PATH.split(splitter)

  532.     CARLA_DEFAULT_SFZ_PATH    = DEFAULT_SFZ_PATH.split(splitter)

  533. 

  534. # ------------------------------------------------------------------------------------------------------------

  535. # Default Plugin Folders (cleanup)

  536. 

  537. del DEFAULT_LADSPA_PATH

  538. del DEFAULT_DSSI_PATH

  539. del DEFAULT_LV2_PATH

  540. del DEFAULT_VST2_PATH

  541. del DEFAULT_VST3_PATH

  542. del DEFAULT_SF2_PATH

  543. del DEFAULT_SFZ_PATH

  544. 

  545. # ------------------------------------------------------------------------------------------------------------

  546. # Global Carla object

  547. 

  548. class CarlaObject():

  549.     def __init__(self):

  550.         self.gui   = None  # Host Window

  551.         self.nogui = False # Skip UI

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

  553.         self.utils = None  # Utils object

  554. 

  555. gCarla = CarlaObject()

  556. 

  557. # ------------------------------------------------------------------------------------------------------------

  558. # Set CWD

  559. 

  560. CWD = sys.path[0]

  561. 

  562. if not CWD:

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

  564. 

  565. # make it work with cxfreeze

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

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

  568.     CXFREEZE = True

  569. else:

  570.     CXFREEZE = False

  571. 

  572. # ------------------------------------------------------------------------------------------------------------

  573. # Set DLL_EXTENSION

  574. 

  575. if WINDOWS:

  576.     DLL_EXTENSION = "dll"

  577. elif MACOS:

  578.     DLL_EXTENSION = "dylib"

  579. else:

  580.     DLL_EXTENSION = "so"

  581. 

  582. # ------------------------------------------------------------------------------------------------------------

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

  584. 

  585. def countDecimalPoints(step, stepSmall):

  586.     if stepSmall >= 1.0:

  587.         return 0

  588.     if step >= 1.0:

  589.         return 2

  590. 

  591.     count = 0

  592.     value = fmod(abs(stepSmall), 1)

  593.     while 0.001 < value < 0.99 and count < 6:

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

  595.         count += 1

  596. 

  597.     return count

  598. 

  599. # ------------------------------------------------------------------------------------------------------------

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

  601. 

  602. def isNumber(value):

  603.     try:

  604.         float(value)

  605.         return True

  606.     except:

  607.         return False

  608. 

  609. # ------------------------------------------------------------------------------------------------------------

  610. # Convert a value to a list

  611. 

  612. def toList(value):

  613.     if value is None:

  614.         return []

  615.     if not isinstance(value, list):

  616.         return [value]

  617.     return value

  618. 

  619. # ------------------------------------------------------------------------------------------------------------

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

  621. 

  622. def getIcon(icon, size = 16):

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

  624. 

  625. # ------------------------------------------------------------------------------------------------------------

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

  627. 

  628. def handleInitialCommandLineArguments(file):

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

  630.     libPrefix = None

  631. 

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

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

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

  635. 

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

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

  638. 

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

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

  641. 

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

  643.             pass

  644. 

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

  646.             gCarla.nogui = True

  647. 

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

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

  650.             print("")

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

  652.             print("")

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

  654.             print("")

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

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

  657.             print("")

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

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

  660.             print("")

  661. 

  662.             sys.exit(0)

  663. 

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

  665.             pathBinaries, pathResources = getPaths(libPrefix)

  666. 

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

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

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

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

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

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

  673. 

  674.             sys.exit(0)

  675. 

  676.     return (initName, libPrefix)

  677. 

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

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

  680. 

  681. def getInitialProjectFile(skipExistCheck = False):

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

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

  684.     args = sys.argv[1:]

  685.     for arg in args:

  686.         if arg.startswith("--with-appname=") or arg.startswith("--with-libprefix=") or arg.startswith("--osc-gui="):

  687.             continue

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

  689.             continue

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

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

  692.             return arg

  693. 

  694.     return None

  695. 

  696. # ------------------------------------------------------------------------------------------------------------

  697. # Get paths (binaries, resources)

  698. 

  699. def getPaths(libPrefix = None):

  700.     CWDl = CWD.lower()

  701. 

  702.     # adjust for special distros

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

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

  705. 

  706.     # standalone, installed system-wide linux

  707.     if libPrefix is not None:

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

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

  710. 

  711.     # standalone, local source

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

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

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

  715. 

  716.     # plugin

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

  718.         # installed system-wide linux

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

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

  721.             pathResources = CWD

  722. 

  723.         # local source

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

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

  726.             pathResources = CWD

  727. 

  728.         # other

  729.         else:

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

  731.             pathResources = CWD

  732. 

  733.     # everything else

  734.     else:

  735.         pathBinaries  = CWD

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

  737. 

  738.     return (pathBinaries, pathResources)

  739. 

  740. # ------------------------------------------------------------------------------------------------------------

  741. # Signal handler

  742. # TODO move to carla_host.py or something

  743. 

  744. def signalHandler(sig, frame):

  745.     if sig in (SIGINT, SIGTERM):

  746.         gCarla.term = True

  747.         if gCarla.gui is not None:

  748.             gCarla.gui.SIGTERM.emit()

  749. 

  750.     elif haveSIGUSR1 and sig == SIGUSR1:

  751.         if gCarla.gui is not None:

  752.             gCarla.gui.SIGUSR1.emit()

  753. 

  754. def setUpSignals():

  755.     signal(SIGINT,  signalHandler)

  756.     signal(SIGTERM, signalHandler)

  757. 

  758.     if not haveSIGUSR1:

  759.         return

  760. 

  761.     signal(SIGUSR1, signalHandler)

  762. 

  763. # ------------------------------------------------------------------------------------------------------------

  764. # QLineEdit and QPushButton combo

  765. 

  766. def getAndSetPath(parent, lineEdit):

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

  768.     if newPath:

  769.         lineEdit.setText(newPath)

  770.     return newPath

  771. 

  772. # ------------------------------------------------------------------------------------------------------------

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

  774. 

  775. def fontMetricsHorizontalAdvance(fontMetrics, string):

  776.     if QT_VERSION >= 0x51100:

  777.         return fontMetrics.horizontalAdvance(string)

  778.     return fontMetrics.width(string)

  779. 

  780. # ------------------------------------------------------------------------------------------------------------

  781. # Custom QMessageBox which resizes itself to fit text

  782. 

  783. class QMessageBoxWithBetterWidth(QMessageBox):

  784.     def __init__(self, parent):

  785.         QMessageBox.__init__(self, parent)

  786. 

  787.     def showEvent(self, event):

  788.         fontMetrics = self.fontMetrics()

  789. 

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

  791. 

  792.         if lines:

  793.             width = 0

  794. 

  795.             for line in lines:

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

  797. 

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

  799. 

  800.         QMessageBox.showEvent(self, event)

  801. 

  802. # ------------------------------------------------------------------------------------------------------------

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

  804. 

  805. class QSafeSettings(QSettings):

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

  807.         if not isinstance(defaultValue, valueType):

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

  809. 

  810.         try:

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

  812.         except:

  813.             return defaultValue

  814. 

  815. # ------------------------------------------------------------------------------------------------------------

  816. # Custom MessageBox

  817. 

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

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

  820.                      extraText="",

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

  822.                      defButton=QMessageBox.No):

  823.     msgBox = QMessageBoxWithBetterWidth(parent)

  824.     msgBox.setIcon(icon)

  825.     msgBox.setWindowTitle(title)

  826.     msgBox.setText(text)

  827.     msgBox.setInformativeText(extraText)

  828.     msgBox.setStandardButtons(buttons)

  829.     msgBox.setDefaultButton(defButton)

  830.     return msgBox.exec_()

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

  832. 

  833. # ------------------------------------------------------------------------------------------------------------