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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. # 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. from PyQt5.Qt import PYQT_VERSION_STR

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

  43. from PyQt5.QtGui import QIcon

  44. from PyQt5.QtWidgets import QFileDialog, QMessageBox

  45. 

  46. # ------------------------------------------------------------------------------------------------------------

  47. # Imports (Custom)

  48. 

  49. from carla_backend import (

  50.     kIs64bit, HAIKU, LINUX, MACOS, WINDOWS,

  51.     MAX_DEFAULT_PARAMETERS,

  52.     ENGINE_PROCESS_MODE_MULTIPLE_CLIENTS,

  53.     ENGINE_PROCESS_MODE_PATCHBAY,

  54.     ENGINE_TRANSPORT_MODE_INTERNAL,

  55.     ENGINE_TRANSPORT_MODE_JACK

  56. )

  57. 

  58. # ------------------------------------------------------------------------------------------------------------

  59. # Config

  60. 

  61. # These will be modified during install

  62. X_LIBDIR_X = None

  63. X_DATADIR_X = None

  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-RC1"

  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.     "08 [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.cnprefix = ""    # Client name prefix

  551.         self.gui      = None  # Host Window

  552.         self.nogui    = False # Skip UI

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

  554.         self.utils    = None  # Utils object

  555. 

  556. gCarla = CarlaObject()

  557. 

  558. # ------------------------------------------------------------------------------------------------------------

  559. # Set CWD

  560. 

  561. CWD = sys.path[0]

  562. 

  563. if not CWD:

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

  565. 

  566. # make it work with cxfreeze

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

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

  569.     CXFREEZE = True

  570. else:

  571.     CXFREEZE = False

  572. 

  573. # ------------------------------------------------------------------------------------------------------------

  574. # Set DLL_EXTENSION

  575. 

  576. if WINDOWS:

  577.     DLL_EXTENSION = "dll"

  578. elif MACOS:

  579.     DLL_EXTENSION = "dylib"

  580. else:

  581.     DLL_EXTENSION = "so"

  582. 

  583. # ------------------------------------------------------------------------------------------------------------

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

  585. 

  586. def countDecimalPoints(step, stepSmall):

  587.     if stepSmall >= 1.0:

  588.         return 0

  589.     if step >= 1.0:

  590.         return 2

  591. 

  592.     count = 0

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

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

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

  596.         count += 1

  597. 

  598.     return count

  599. 

  600. # ------------------------------------------------------------------------------------------------------------

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

  602. 

  603. def isNumber(value):

  604.     try:

  605.         float(value)

  606.         return True

  607.     except:

  608.         return False

  609. 

  610. # ------------------------------------------------------------------------------------------------------------

  611. # Convert a value to a list

  612. 

  613. def toList(value):

  614.     if value is None:

  615.         return []

  616.     if not isinstance(value, list):

  617.         return [value]

  618.     return value

  619. 

  620. # ------------------------------------------------------------------------------------------------------------

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

  622. 

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

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

  625. 

  626. # ------------------------------------------------------------------------------------------------------------

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

  628. 

  629. def handleInitialCommandLineArguments(file):

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

  631.     libPrefix = None

  632.     readPrefixNext = False

  633. 

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

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

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

  637. 

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

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

  640. 

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

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

  643. 

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

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

  646. 

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

  648.             readPrefixNext = True

  649. 

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

  651.             pass

  652. 

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

  654.             gCarla.nogui = True

  655. 

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

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

  658.             print("")

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

  660.             print("")

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

  662.             print("")

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

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

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

  666.             print("")

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

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

  669.             print("")

  670. 

  671.             sys.exit(0)

  672. 

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

  674.             pathBinaries, pathResources = getPaths(libPrefix)

  675. 

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

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

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

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

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

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

  682. 

  683.             sys.exit(0)

  684. 

  685.         elif readPrefixNext:

  686.             readPrefixNext = False

  687.             gCarla.cnprefix = arg

  688. 

  689.     return (initName, libPrefix)

  690. 

  691. # ------------------------------------------------------------------------------------------------------------

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

  693. 

  694. def getInitialProjectFile(skipExistCheck = False):

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

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

  697.     args = sys.argv[1:]

  698.     readPrefixNext = False

  699.     for arg in args:

  700.         if readPrefixNext:

  701.             readPrefixNext = False

  702.             continue

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

  704.             continue

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

  706.             continue

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

  708.             continue

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

  710.             continue

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

  712.             readPrefixNext = True

  713.             continue

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

  715.             continue

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

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

  718.             return arg

  719. 

  720.     return None

  721. 

  722. # ------------------------------------------------------------------------------------------------------------

  723. # Get paths (binaries, resources)

  724. 

  725. def getPaths(libPrefix = None):

  726.     CWDl = CWD.lower()

  727. 

  728.     # adjust for special distros

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

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

  731. 

  732.     # standalone, installed system-wide linux

  733.     if libPrefix is not None:

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

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

  736. 

  737.     # standalone, local source

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

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

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

  741. 

  742.     # plugin

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

  744.         # installed system-wide linux

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

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

  747.             pathResources = CWD

  748. 

  749.         # local source

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

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

  752.             pathResources = CWD

  753. 

  754.         # other

  755.         else:

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

  757.             pathResources = CWD

  758. 

  759.     # everything else

  760.     else:

  761.         pathBinaries  = CWD

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

  763. 

  764.     return (pathBinaries, pathResources)

  765. 

  766. # ------------------------------------------------------------------------------------------------------------

  767. # Signal handler

  768. # TODO move to carla_host.py or something

  769. 

  770. def signalHandler(sig, frame):

  771.     if sig in (SIGINT, SIGTERM):

  772.         gCarla.term = True

  773.         if gCarla.gui is not None:

  774.             gCarla.gui.SIGTERM.emit()

  775. 

  776.     elif haveSIGUSR1 and sig == SIGUSR1:

  777.         if gCarla.gui is not None:

  778.             gCarla.gui.SIGUSR1.emit()

  779. 

  780. def setUpSignals():

  781.     signal(SIGINT,  signalHandler)

  782.     signal(SIGTERM, signalHandler)

  783. 

  784.     if not haveSIGUSR1:

  785.         return

  786. 

  787.     signal(SIGUSR1, signalHandler)

  788. 

  789. # ------------------------------------------------------------------------------------------------------------

  790. # QLineEdit and QPushButton combo

  791. 

  792. def getAndSetPath(parent, lineEdit):

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

  794.     if newPath:

  795.         lineEdit.setText(newPath)

  796.     return newPath

  797. 

  798. # ------------------------------------------------------------------------------------------------------------

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

  800. 

  801. def fontMetricsHorizontalAdvance(fontMetrics, string):

  802.     if QT_VERSION >= 0x51100:

  803.         return fontMetrics.horizontalAdvance(string)

  804.     return fontMetrics.width(string)

  805. 

  806. # ------------------------------------------------------------------------------------------------------------

  807. # Custom QMessageBox which resizes itself to fit text

  808. 

  809. class QMessageBoxWithBetterWidth(QMessageBox):

  810.     def __init__(self, parent):

  811.         QMessageBox.__init__(self, parent)

  812. 

  813.     def showEvent(self, event):

  814.         fontMetrics = self.fontMetrics()

  815. 

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

  817. 

  818.         if lines:

  819.             width = 0

  820. 

  821.             for line in lines:

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

  823. 

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

  825. 

  826.         QMessageBox.showEvent(self, event)

  827. 

  828. # ------------------------------------------------------------------------------------------------------------

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

  830. 

  831. class QSafeSettings(QSettings):

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

  833.         if not isinstance(defaultValue, valueType):

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

  835. 

  836.         try:

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

  838.         except:

  839.             return defaultValue

  840. 

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

  842. # Custom MessageBox

  843. 

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

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

  846.                      extraText="",

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

  848.                      defButton=QMessageBox.No):

  849.     msgBox = QMessageBoxWithBetterWidth(parent)

  850.     msgBox.setIcon(icon)

  851.     msgBox.setWindowTitle(title)

  852.     msgBox.setText(text)

  853.     msgBox.setInformativeText(extraText)

  854.     msgBox.setStandardButtons(buttons)

  855.     msgBox.setDefaultButton(defButton)

  856.     return msgBox.exec_()

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

  858. 

  859. # ------------------------------------------------------------------------------------------------------------