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Carla
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Carla/source/carla_shared.py

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  1. #!/usr/bin/env python3

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

  3. 

  4. # Common Carla code

  5. # Copyright (C) 2011-2013 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. try:

  26.     from PyQt5.QtCore import qFatal, qWarning

  27.     from PyQt5.QtGui import QIcon

  28.     from PyQt5.QtWidgets import QFileDialog, QMessageBox

  29. except:

  30.     from PyQt4.QtCore import qFatal, qWarning

  31.     from PyQt4.QtGui import QIcon

  32.     from PyQt4.QtGui import QFileDialog, QMessageBox

  33. 

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

  35. # Import 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 (Custom)

  47. 

  48. from carla_backend import *

  49. 

  50. # ------------------------------------------------------------------------------------------------------------

  51. # Platform specific stuff

  52. 

  53. if MACOS:

  54.     from PyQt5.QtGui import qt_mac_set_menubar_icons

  55.     qt_mac_set_menubar_icons(False)

  56. elif WINDOWS:

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

  58. 

  59. # ------------------------------------------------------------------------------------------------------------

  60. # Set Version

  61. 

  62. VERSION = "1.9.0"

  63. 

  64. # ------------------------------------------------------------------------------------------------------------

  65. # Set TMP

  66. 

  67. TMP = os.getenv("TMP")

  68. 

  69. if TMP is None:

  70.     if WINDOWS:

  71.         qWarning("TMP variable not set")

  72.         TMP = os.path.join(WINDIR, "temp")

  73.     else:

  74.         TMP = "/tmp"

  75. 

  76. elif not os.path.exists(TMP):

  77.     qWarning("TMP does not exist")

  78.     TMP = "/tmp"

  79. 

  80. # ------------------------------------------------------------------------------------------------------------

  81. # Set HOME

  82. 

  83. HOME = os.getenv("HOME")

  84. 

  85. if HOME is None:

  86.     HOME = os.path.expanduser("~")

  87. 

  88.     if LINUX or MACOS:

  89.         qWarning("HOME variable not set")

  90. 

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

  92.     qWarning("HOME does not exist")

  93.     HOME = TMP

  94. 

  95. # ------------------------------------------------------------------------------------------------------------

  96. # Set PATH

  97. 

  98. PATH = os.getenv("PATH")

  99. 

  100. if PATH is None:

  101.     qWarning("PATH variable not set")

  102. 

  103.     if MACOS:

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

  105.     elif WINDOWS:

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

  107.     else:

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

  109. 

  110. else:

  111.     PATH = PATH.split(os.pathsep)

  112. 

  113. # ------------------------------------------------------------------------------------------------------------

  114. # Static MIDI CC list

  115. 

  116. MIDI_CC_LIST = (

  117.     "0x01 Modulation",

  118.     "0x02 Breath",

  119.     "0x03 (Undefined)",

  120.     "0x04 Foot",

  121.     "0x05 Portamento",

  122.     "0x07 Volume",

  123.     "0x08 Balance",

  124.     "0x09 (Undefined)",

  125.     "0x0A Pan",

  126.     "0x0B Expression",

  127.     "0x0C FX Control 1",

  128.     "0x0D FX Control 2",

  129.     "0x0E (Undefined)",

  130.     "0x0F (Undefined)",

  131.     "0x10 General Purpose 1",

  132.     "0x11 General Purpose 2",

  133.     "0x12 General Purpose 3",

  134.     "0x13 General Purpose 4",

  135.     "0x14 (Undefined)",

  136.     "0x15 (Undefined)",

  137.     "0x16 (Undefined)",

  138.     "0x17 (Undefined)",

  139.     "0x18 (Undefined)",

  140.     "0x19 (Undefined)",

  141.     "0x1A (Undefined)",

  142.     "0x1B (Undefined)",

  143.     "0x1C (Undefined)",

  144.     "0x1D (Undefined)",

  145.     "0x1E (Undefined)",

  146.     "0x1F (Undefined)",

  147.     "0x46 Control 1 [Variation]",

  148.     "0x47 Control 2 [Timbre]",

  149.     "0x48 Control 3 [Release]",

  150.     "0x49 Control 4 [Attack]",

  151.     "0x4A Control 5 [Brightness]",

  152.     "0x4B Control 6 [Decay]",

  153.     "0x4C Control 7 [Vib Rate]",

  154.     "0x4D Control 8 [Vib Depth]",

  155.     "0x4E Control 9 [Vib Delay]",

  156.     "0x4F Control 10 [Undefined]",

  157.     "0x50 General Purpose 5",

  158.     "0x51 General Purpose 6",

  159.     "0x52 General Purpose 7",

  160.     "0x53 General Purpose 8",

  161.     "0x54 Portamento Control",

  162.     "0x5B FX 1 Depth [Reverb]",

  163.     "0x5C FX 2 Depth [Tremolo]",

  164.     "0x5D FX 3 Depth [Chorus]",

  165.     "0x5E FX 4 Depth [Detune]",

  166.     "0x5F FX 5 Depth [Phaser]"

  167.   )

  168. 

  169. # ------------------------------------------------------------------------------------------------------------

  170. # Default Plugin Folders (get)

  171. 

  172. if WINDOWS:

  173.     splitter = ";"

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

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

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

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

  178. 

  179.     # Small integrity tests

  180.     if not APPDATA:

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

  182.         sys.exit(1)

  183. 

  184.     if not PROGRAMFILES:

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

  186.         sys.exit(1)

  187. 

  188.     if not COMMONPROGRAMFILES:

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

  190.         sys.exit(1)

  191. 

  192.     DEFAULT_LADSPA_PATH = ";".join((os.path.join(APPDATA, "LADSPA"),

  193.                                     os.path.join(PROGRAMFILES, "LADSPA")))

  194. 

  195.     DEFAULT_DSSI_PATH   = ";".join((os.path.join(APPDATA, "DSSI"),

  196.                                     os.path.join(PROGRAMFILES, "DSSI")))

  197. 

  198.     DEFAULT_LV2_PATH    = ";".join((os.path.join(APPDATA, "LV2"),

  199.                                     os.path.join(COMMONPROGRAMFILES, "LV2")))

  200. 

  201.     DEFAULT_VST_PATH    = ";".join((os.path.join(PROGRAMFILES, "VstPlugins"),

  202.                                     os.path.join(PROGRAMFILES, "Steinberg", "VstPlugins")))

  203. 

  204.     DEFAULT_AU_PATH     = ""

  205. 

  206.     # TODO

  207.     DEFAULT_CSOUND_PATH = ""

  208. 

  209.     DEFAULT_GIG_PATH    = ";".join((os.path.join(APPDATA, "GIG"),))

  210.     DEFAULT_SF2_PATH    = ";".join((os.path.join(APPDATA, "SF2"),))

  211.     DEFAULT_SFZ_PATH    = ";".join((os.path.join(APPDATA, "SFZ"),))

  212. 

  213.     if PROGRAMFILESx86:

  214.         DEFAULT_LADSPA_PATH += ";"+os.path.join(PROGRAMFILESx86, "LADSPA")

  215.         DEFAULT_DSSI_PATH   += ";"+os.path.join(PROGRAMFILESx86, "DSSI")

  216.         DEFAULT_VST_PATH    += ";"+os.path.join(PROGRAMFILESx86, "VstPlugins")

  217.         DEFAULT_VST_PATH    += ";"+os.path.join(PROGRAMFILESx86, "Steinberg", "VstPlugins")

  218. 

  219. elif HAIKU:

  220.     splitter = ":"

  221. 

  222.     DEFAULT_LADSPA_PATH = ":".join((os.path.join(HOME, ".ladspa"),

  223.                                     os.path.join("/", "boot", "common", "add-ons", "ladspa")))

  224. 

  225.     DEFAULT_DSSI_PATH   = ":".join((os.path.join(HOME, ".dssi"),

  226.                                     os.path.join("/", "boot", "common", "add-ons", "dssi")))

  227. 

  228.     DEFAULT_LV2_PATH    = ":".join((os.path.join(HOME, ".lv2"),

  229.                                     os.path.join("/", "boot", "common", "add-ons", "lv2")))

  230. 

  231.     DEFAULT_VST_PATH    = ":".join((os.path.join(HOME, ".vst"),

  232.                                     os.path.join("/", "boot", "common", "add-ons", "vst")))

  233. 

  234.     DEFAULT_AU_PATH     = ""

  235. 

  236.     # TODO

  237.     DEFAULT_CSOUND_PATH = ""

  238. 

  239.     # TODO

  240.     DEFAULT_GIG_PATH    = ""

  241.     DEFAULT_SF2_PATH    = ""

  242.     DEFAULT_SFZ_PATH    = ""

  243. 

  244. elif MACOS:

  245.     splitter = ":"

  246. 

  247.     DEFAULT_LADSPA_PATH = ":".join((os.path.join(HOME, "Library", "Audio", "Plug-Ins", "LADSPA"),

  248.                                     os.path.join("/", "Library", "Audio", "Plug-Ins", "LADSPA")))

  249. 

  250.     DEFAULT_DSSI_PATH   = ":".join((os.path.join(HOME, "Library", "Audio", "Plug-Ins", "DSSI"),

  251.                                     os.path.join("/", "Library", "Audio", "Plug-Ins", "DSSI")))

  252. 

  253.     DEFAULT_LV2_PATH    = ":".join((os.path.join(HOME, "Library", "Audio", "Plug-Ins", "LV2"),

  254.                                     os.path.join("/", "Library", "Audio", "Plug-Ins", "LV2")))

  255. 

  256.     DEFAULT_VST_PATH    = ":".join((os.path.join(HOME, "Library", "Audio", "Plug-Ins", "VST"),

  257.                                     os.path.join("/", "Library", "Audio", "Plug-Ins", "VST")))

  258. 

  259.     DEFAULT_AU_PATH     = ":".join((os.path.join(HOME, "Library", "Audio", "Plug-Ins", "Components"),

  260.                                     os.path.join("/", "Library", "Audio", "Plug-Ins", "Components")))

  261. 

  262.     # TODO

  263.     DEFAULT_CSOUND_PATH = ""

  264. 

  265.     # TODO

  266.     DEFAULT_GIG_PATH    = ""

  267.     DEFAULT_SF2_PATH    = ""

  268.     DEFAULT_SFZ_PATH    = ""

  269. 

  270. else:

  271.     splitter = ":"

  272. 

  273.     DEFAULT_LADSPA_PATH = ":".join((os.path.join(HOME, ".ladspa"),

  274.                                     os.path.join("/", "usr", "lib", "ladspa"),

  275.                                     os.path.join("/", "usr", "local", "lib", "ladspa")))

  276. 

  277.     DEFAULT_DSSI_PATH   = ":".join((os.path.join(HOME, ".dssi"),

  278.                                     os.path.join("/", "usr", "lib", "dssi"),

  279.                                     os.path.join("/", "usr", "local", "lib", "dssi")))

  280. 

  281.     DEFAULT_LV2_PATH    = ":".join((os.path.join(HOME, ".lv2"),

  282.                                     os.path.join("/", "usr", "lib", "lv2"),

  283.                                     os.path.join("/", "usr", "local", "lib", "lv2")))

  284. 

  285.     DEFAULT_VST_PATH    = ":".join((os.path.join(HOME, ".vst"),

  286.                                     os.path.join("/", "usr", "lib", "vst"),

  287.                                     os.path.join("/", "usr", "local", "lib", "vst")))

  288. 

  289.     DEFAULT_AU_PATH     = ""

  290. 

  291.     # TODO

  292.     DEFAULT_CSOUND_PATH = ""

  293. 

  294.     DEFAULT_GIG_PATH    = ":".join((os.path.join(HOME, ".sounds", "gig"),

  295.                                     os.path.join("/", "usr", "share", "sounds", "gig")))

  296. 

  297.     DEFAULT_SF2_PATH    = ":".join((os.path.join(HOME, ".sounds", "sf2"),

  298.                                     os.path.join("/", "usr", "share", "sounds", "sf2")))

  299. 

  300.     DEFAULT_SFZ_PATH    = ":".join((os.path.join(HOME, ".sounds", "sfz"),

  301.                                     os.path.join("/", "usr", "share", "sounds", "sfz")))

  302. 

  303. # ------------------------------------------------------------------------------------------------------------

  304. # Carla Settings keys

  305. 

  306. CARLA_KEY_MAIN_PROJECT_FOLDER   = "Main/ProjectFolder"   # str

  307. CARLA_KEY_MAIN_USE_PRO_THEME    = "Main/UseProTheme"     # bool

  308. CARLA_KEY_MAIN_PRO_THEME_COLOR  = "Main/ProThemeColor"   # str

  309. CARLA_KEY_MAIN_DISABLE_CHECKS   = "Main/DisableChecks"   # bool

  310. CARLA_KEY_MAIN_REFRESH_INTERVAL = "Main/RefreshInterval" # int

  311. 

  312. CARLA_KEY_CANVAS_THEME            = "Canvas/Theme"           # str

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

  314. CARLA_KEY_CANVAS_USE_BEZIER_LINES = "Canvas/UseBezierLines"  # bool

  315. CARLA_KEY_CANVAS_AUTO_HIDE_GROUPS = "Canvas/AutoHideGroups"  # bool

  316. CARLA_KEY_CANVAS_EYE_CANDY        = "Canvas/EyeCandy"        # enum

  317. CARLA_KEY_CANVAS_USE_OPENGL       = "Canvas/UseOpenGL"       # bool

  318. CARLA_KEY_CANVAS_ANTIALIASING     = "Canvas/Antialiasing"    # enum

  319. CARLA_KEY_CANVAS_HQ_ANTIALIASING  = "Canvas/HQAntialiasing"  # bool

  320. 

  321. CARLA_KEY_ENGINE_ = "Engine/AudioDriver"         # str

  322. CARLA_KEY_ENGINE_ = "Engine/ProcessMode"         # enum

  323. CARLA_KEY_ENGINE_ = "Engine/MaxParameters"       # bool

  324. CARLA_KEY_ENGINE_ = "Engine/UIsAlwaysOnTop"      # bool

  325. CARLA_KEY_ENGINE_ = "Engine/PreferUiBridges"     # bool

  326. CARLA_KEY_ENGINE_ = "Engine/OscUiTimeout"        # int

  327. CARLA_KEY_ENGINE_ = "Engine/PreferPluginBridges" # bool

  328. CARLA_KEY_ENGINE_ = "Engine/ForceStereo"         # bool

  329. CARLA_KEY_ENGINE_DRIVER_PREFIX = "Engine/Driver-"

  330. 

  331. CARLA_KEY_PATHS_LADSPA = "Paths/LADSPA"

  332. CARLA_KEY_PATHS_DSSI   = "Paths/DSSI"

  333. CARLA_KEY_PATHS_LV2    = "Paths/LV2"

  334. CARLA_KEY_PATHS_VST    = "Paths/VST"

  335. CARLA_KEY_PATHS_AU     = "Paths/AU"

  336. CARLA_KEY_PATHS_CSOUND = "Paths/CSOUND"

  337. CARLA_KEY_PATHS_GIG    = "Paths/GIG"

  338. CARLA_KEY_PATHS_SF2    = "Paths/SF2"

  339. CARLA_KEY_PATHS_SFZ    = "Paths/SFZ"

  340. 

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

  342. # Global Carla object

  343. 

  344. class CarlaObject(object):

  345.     __slots__ = [

  346.         # Host library object

  347.         'host',

  348.         # Host Window

  349.         'gui',

  350.         # bool, is controller

  351.         'isControl',

  352.         # bool, is running local

  353.         'isLocal',

  354.         # bool, is plugin

  355.         'isPlugin',

  356.         # current process mode

  357.         'processMode',

  358.         # current max parameters

  359.         'maxParameters',

  360.         # discovery tools

  361.         'discovery_native',

  362.         'discovery_posix32',

  363.         'discovery_posix64',

  364.         'discovery_win32',

  365.         'discovery_win64',

  366.         # default paths

  367.         'DEFAULT_LADSPA_PATH',

  368.         'DEFAULT_DSSI_PATH',

  369.         'DEFAULT_LV2_PATH',

  370.         'DEFAULT_VST_PATH',

  371.         'DEFAULT_AU_PATH',

  372.         'DEFAULT_CSOUND_PATH',

  373.         'DEFAULT_GIG_PATH',

  374.         'DEFAULT_SF2_PATH',

  375.         'DEFAULT_SFZ_PATH'

  376.     ]

  377. 

  378. Carla = CarlaObject()

  379. Carla.host = None

  380. Carla.gui  = None

  381. Carla.isControl = False

  382. Carla.isLocal   = True

  383. Carla.isPlugin  = False

  384. Carla.processMode   = PROCESS_MODE_MULTIPLE_CLIENTS if LINUX else PROCESS_MODE_CONTINUOUS_RACK

  385. Carla.maxParameters = MAX_DEFAULT_PARAMETERS

  386. 

  387. Carla.discovery_native  = ""

  388. Carla.discovery_posix32 = ""

  389. Carla.discovery_posix64 = ""

  390. Carla.discovery_win32   = ""

  391. Carla.discovery_win64   = ""

  392. 

  393. # ------------------------------------------------------------------------------------------------------------

  394. # Default Plugin Folders (set)

  395. 

  396. readEnvVars = True

  397. 

  398. if WINDOWS:

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

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

  401.     reg = ConnectRegistry(None, HKEY_CURRENT_USER)

  402. 

  403.     try:

  404.         key = OpenKey(reg, r"SOFTWARE\Wine")

  405.         CloseKey(key)

  406.         readEnvVars = False

  407.     except:

  408.         pass

  409. 

  410.     CloseKey(reg)

  411.     del reg

  412. 

  413. if readEnvVars:

  414.     Carla.DEFAULT_LADSPA_PATH = os.getenv("LADSPA_PATH", DEFAULT_LADSPA_PATH).split(splitter)

  415.     Carla.DEFAULT_DSSI_PATH   = os.getenv("DSSI_PATH",   DEFAULT_DSSI_PATH).split(splitter)

  416.     Carla.DEFAULT_LV2_PATH    = os.getenv("LV2_PATH",    DEFAULT_LV2_PATH).split(splitter)

  417.     Carla.DEFAULT_VST_PATH    = os.getenv("VST_PATH",    DEFAULT_VST_PATH).split(splitter)

  418.     Carla.DEFAULT_AU_PATH     = os.getenv("AU_PATH",     DEFAULT_AU_PATH).split(splitter)

  419.     Carla.DEFAULT_CSOUND_PATH = os.getenv("CSOUND_PATH", DEFAULT_CSOUND_PATH).split(splitter)

  420.     Carla.DEFAULT_GIG_PATH    = os.getenv("GIG_PATH",    DEFAULT_GIG_PATH).split(splitter)

  421.     Carla.DEFAULT_SF2_PATH    = os.getenv("SF2_PATH",    DEFAULT_SF2_PATH).split(splitter)

  422.     Carla.DEFAULT_SFZ_PATH    = os.getenv("SFZ_PATH",    DEFAULT_SFZ_PATH).split(splitter)

  423. 

  424. else:

  425.     Carla.DEFAULT_LADSPA_PATH = DEFAULT_LADSPA_PATH.split(splitter)

  426.     Carla.DEFAULT_DSSI_PATH   = DEFAULT_DSSI_PATH.split(splitter)

  427.     Carla.DEFAULT_LV2_PATH    = DEFAULT_LV2_PATH.split(splitter)

  428.     Carla.DEFAULT_VST_PATH    = DEFAULT_VST_PATH.split(splitter)

  429.     Carla.DEFAULT_AU_PATH     = DEFAULT_AU_PATH.split(splitter)

  430.     Carla.DEFAULT_CSOUND_PATH = DEFAULT_CSOUND_PATH.split(splitter)

  431.     Carla.DEFAULT_GIG_PATH    = DEFAULT_GIG_PATH.split(splitter)

  432.     Carla.DEFAULT_SF2_PATH    = DEFAULT_SF2_PATH.split(splitter)

  433.     Carla.DEFAULT_SFZ_PATH    = DEFAULT_SFZ_PATH.split(splitter)

  434. 

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

  436. # Search for Carla tools

  437. 

  438. CWD = sys.path[0]

  439. 

  440. # make it work with cxfreeze

  441. if CWD.endswith("/carla"):

  442.     CWD = CWD.rsplit("/carla", 1)[0]

  443. elif CWD.endswith("\\carla.exe"):

  444.     CWD = CWD.rsplit("\\carla.exe", 1)[0]

  445. 

  446. # find tool

  447. def findTool(toolDir, toolName):

  448.     if os.path.exists(os.path.join(CWD, toolDir, toolName)):

  449.         return os.path.join(CWD, toolDir, toolName)

  450. 

  451.     for p in PATH:

  452.         if os.path.exists(os.path.join(p, toolName)):

  453.             return os.path.join(p, toolName)

  454. 

  455.     return ""

  456. 

  457. # ------------------------------------------------------------------------------------------------------------

  458. # Init host

  459. 

  460. def initHost(appName, libPrefix = None, failError = True):

  461.     # -------------------------------------------------------------

  462.     # Search for Carla library

  463. 

  464.     libname = "libcarla_"

  465. 

  466.     if Carla.isControl:

  467.         libname += "control"

  468.     else:

  469.         libname += "standalone"

  470. 

  471.     if WINDOWS:

  472.         libname += ".dll"

  473.     elif MACOS:

  474.         libname += ".dylib"

  475.     else:

  476.         libname += ".so"

  477. 

  478.     if libPrefix is not None:

  479.         libfilename = os.path.join(libPrefix, "lib", "carla", libname)

  480. 

  481.     else:

  482.         if os.path.exists(os.path.join(CWD, "backend", libname)):

  483.             libfilename = os.path.join(CWD, "backend", libname)

  484.         #else:

  485.             #CARLA_LIB_PATH = os.getenv("CARLA_LIB_PATH")

  486. 

  487.             #if CARLA_LIB_PATH and os.path.exists(CARLA_LIB_PATH):

  488.                 #CARLA_LIB_PATH = os.path.join(CARLA_LIB_PATH, "..")

  489.             #elif WINDOWS:

  490.                 #CARLA_LIB_PATH = (os.path.join(PROGRAMFILES, "Carla"),)

  491.             #elif MACOS:

  492.                 #CARLA_LIB_PATH = ("/opt/local/lib", "/usr/local/lib/", "/usr/lib")

  493.             #else:

  494.                 #CARLA_LIB_PATH = ("/usr/local/lib/", "/usr/lib")

  495. 

  496.             #for path in CARLA_LIB_PATH:

  497.                 #if os.path.exists(os.path.join(path, "carla", libname)):

  498.                     #libfilename = os.path.join(path, "carla", libname)

  499.                     #break

  500. 

  501.     # -------------------------------------------------------------

  502.     # Search for Carla tools

  503. 

  504.     carla_bridge_native  = ""

  505.     carla_bridge_posix32 = ""

  506.     carla_bridge_posix64 = ""

  507.     carla_bridge_win32   = ""

  508.     carla_bridge_win64   = ""

  509. 

  510.     carla_bridge_lv2_external = ""

  511.     carla_bridge_lv2_gtk2     = ""

  512.     carla_bridge_lv2_gtk3     = ""

  513.     carla_bridge_lv2_qt4      = ""

  514.     carla_bridge_lv2_qt5      = ""

  515.     carla_bridge_lv2_cocoa    = ""

  516.     carla_bridge_lv2_windows  = ""

  517.     carla_bridge_lv2_x11      = ""

  518. 

  519.     carla_bridge_vst_mac  = ""

  520.     carla_bridge_vst_hwnd = ""

  521.     carla_bridge_vst_x11  = ""

  522. 

  523.     # -------------------------------------------------------------

  524.     # find windows tools

  525. 

  526.     Carla.discovery_win32 = findTool("discovery", "carla-discovery-win32.exe")

  527.     Carla.discovery_win64 = findTool("discovery", "carla-discovery-win64.exe")

  528.     carla_bridge_win32    = findTool("bridges", "carla-bridge-win32.exe")

  529.     carla_bridge_win64    = findTool("bridges", "carla-bridge-win64.exe")

  530. 

  531.     # -------------------------------------------------------------

  532.     # find native and posix tools

  533. 

  534.     if not WINDOWS:

  535.         Carla.discovery_native  = findTool("discovery", "carla-discovery-native")

  536.         Carla.discovery_posix32 = findTool("discovery", "carla-discovery-posix32")

  537.         Carla.discovery_posix64 = findTool("discovery", "carla-discovery-posix64")

  538.         carla_bridge_native     = findTool("bridges", "carla-bridge-native")

  539.         carla_bridge_posix32    = findTool("bridges", "carla-bridge-posix32")

  540.         carla_bridge_posix64    = findTool("bridges", "carla-bridge-posix64")

  541. 

  542.     # -------------------------------------------------------------

  543.     # find generic tools

  544. 

  545.     carla_bridge_lv2_external = findTool("bridges", "carla-bridge-lv2-external")

  546. 

  547.     # -------------------------------------------------------------

  548.     # find windows only tools

  549. 

  550.     if WINDOWS:

  551.         carla_bridge_lv2_windows = findTool("bridges", "carla-bridge-lv2-windows.exe")

  552.         carla_bridge_vst_hwnd    = findTool("bridges", "carla-bridge-vst-hwnd.exe")

  553. 

  554.     # -------------------------------------------------------------

  555.     # find mac os only tools

  556. 

  557.     elif MACOS:

  558.         carla_bridge_lv2_cocoa = findTool("bridges", "carla-bridge-lv2-cocoa")

  559.         carla_bridge_vst_mac   = findTool("bridges", "carla-bridge-vst-mac")

  560. 

  561.     # -------------------------------------------------------------

  562.     # find other tools

  563. 

  564.     else:

  565.         carla_bridge_lv2_gtk2 = findTool("bridges", "carla-bridge-lv2-gtk2")

  566.         carla_bridge_lv2_gtk3 = findTool("bridges", "carla-bridge-lv2-gtk3")

  567.         carla_bridge_lv2_qt4  = findTool("bridges", "carla-bridge-lv2-qt4")

  568.         carla_bridge_lv2_qt5  = findTool("bridges", "carla-bridge-lv2-qt5")

  569.         carla_bridge_lv2_x11  = findTool("bridges", "carla-bridge-lv2-x11")

  570.         carla_bridge_vst_x11  = findTool("bridges", "carla-bridge-vst-x11")

  571. 

  572.     if not libfilename:

  573.         if failError:

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

  575.             sys.exit(1)

  576.         return

  577. 

  578.     # -------------------------------------------------------------

  579.     # Init now

  580. 

  581.     Carla.host = Host(libfilename)

  582. 

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

  584.     # Set internal stuff

  585. 

  586.     Carla.host.set_engine_option(OPTION_PROCESS_NAME, 0, os.path.basename(appName))

  587. 

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

  589. 

  590.     if NSM_URL:

  591.         Carla.host.nsm_announce(NSM_URL, appName, os.getpid())

  592. 

  593.     # -------------------------------------------------------------

  594.     # Set resource path

  595. 

  596.     localResources  = os.path.join(libfilename.replace(libname, ""), "..", "modules", "carla_native", "resources")

  597.     systemResources = os.path.join(libfilename.replace(libname, ""), "resources")

  598. 

  599.     if os.path.exists(localResources):

  600.         Carla.host.set_engine_option(OPTION_PATH_RESOURCES, 0, localResources)

  601.     elif os.path.exists(systemResources):

  602.         Carla.host.set_engine_option(OPTION_PATH_RESOURCES, 0, systemResources)

  603. 

  604.     # -------------------------------------------------------------

  605.     # Set bridge paths

  606. 

  607.     if carla_bridge_native:

  608.         Carla.host.set_engine_option(OPTION_PATH_BRIDGE_NATIVE, 0, carla_bridge_native)

  609. 

  610.     if carla_bridge_posix32:

  611.         Carla.host.set_engine_option(OPTION_PATH_BRIDGE_POSIX32, 0, carla_bridge_posix32)

  612. 

  613.     if carla_bridge_posix64:

  614.         Carla.host.set_engine_option(OPTION_PATH_BRIDGE_POSIX64, 0, carla_bridge_posix64)

  615. 

  616.     if carla_bridge_win32:

  617.         Carla.host.set_engine_option(OPTION_PATH_BRIDGE_WIN32, 0, carla_bridge_win32)

  618. 

  619.     if carla_bridge_win64:

  620.         Carla.host.set_engine_option(OPTION_PATH_BRIDGE_WIN64, 0, carla_bridge_win64)

  621. 

  622.     if carla_bridge_lv2_external:

  623.         Carla.host.set_engine_option(OPTION_PATH_BRIDGE_LV2_EXTERNAL, 0, carla_bridge_lv2_external)

  624. 

  625.     if WINDOWS:

  626.         if carla_bridge_lv2_windows:

  627.             Carla.host.set_engine_option(OPTION_PATH_BRIDGE_LV2_WINDOWS, 0, carla_bridge_lv2_windows)

  628. 

  629.         if carla_bridge_vst_hwnd:

  630.             Carla.host.set_engine_option(OPTION_PATH_BRIDGE_VST_HWND, 0, carla_bridge_vst_hwnd)

  631. 

  632.     elif MACOS:

  633.         if carla_bridge_lv2_cocoa:

  634.             Carla.host.set_engine_option(OPTION_PATH_BRIDGE_LV2_COCOA, 0, carla_bridge_lv2_cocoa)

  635. 

  636.         if carla_bridge_vst_mac:

  637.             Carla.host.set_engine_option(OPTION_PATH_BRIDGE_VST_MAC, 0, carla_bridge_vst_mac)

  638. 

  639.     else:

  640.         if carla_bridge_lv2_gtk2:

  641.             Carla.host.set_engine_option(OPTION_PATH_BRIDGE_LV2_GTK2, 0, carla_bridge_lv2_gtk2)

  642. 

  643.         if carla_bridge_lv2_gtk3:

  644.             Carla.host.set_engine_option(OPTION_PATH_BRIDGE_LV2_GTK3, 0, carla_bridge_lv2_gtk3)

  645. 

  646.         if carla_bridge_lv2_qt4:

  647.             Carla.host.set_engine_option(OPTION_PATH_BRIDGE_LV2_QT4, 0, carla_bridge_lv2_qt4)

  648. 

  649.         if carla_bridge_lv2_qt5:

  650.             Carla.host.set_engine_option(OPTION_PATH_BRIDGE_LV2_QT5, 0, carla_bridge_lv2_qt5)

  651. 

  652.         if carla_bridge_lv2_x11:

  653.             Carla.host.set_engine_option(OPTION_PATH_BRIDGE_LV2_X11, 0, carla_bridge_lv2_x11)

  654. 

  655.         if carla_bridge_vst_x11:

  656.             Carla.host.set_engine_option(OPTION_PATH_BRIDGE_VST_X11, 0, carla_bridge_vst_x11)

  657. 

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

  659. # Convert a ctypes c_char_p into a python string

  660. 

  661. def cString(value):

  662.     if not value:

  663.         return ""

  664.     if isinstance(value, str):

  665.         return value

  666.     return value.decode("utf-8", errors="ignore")

  667. 

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

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

  670. 

  671. def isNumber(value):

  672.     try:

  673.         float(value)

  674.         return True

  675.     except:

  676.         return False

  677. 

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

  679. # Convert a value to a list

  680. 

  681. def toList(value):

  682.     if value is None:

  683.         return []

  684.     elif not isinstance(value, list):

  685.         return [value]

  686.     else:

  687.         return value

  688. 

  689. # ------------------------------------------------------------------------------------------------------------

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

  691. 

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

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

  694. 

  695. # ------------------------------------------------------------------------------------------------------------

  696. # Signal handler

  697. 

  698. def signalHandler(sig, frame):

  699.     if Carla.gui is None:

  700.         return

  701. 

  702.     if sig in (SIGINT, SIGTERM):

  703.         Carla.gui.SIGTERM.emit()

  704.     elif haveSIGUSR1 and sig == SIGUSR1:

  705.         Carla.gui.SIGUSR1.emit()

  706. 

  707. def setUpSignals():

  708.     signal(SIGINT,  signalHandler)

  709.     signal(SIGTERM, signalHandler)

  710. 

  711.     if not haveSIGUSR1:

  712.         return

  713. 

  714.     signal(SIGUSR1, signalHandler)

  715. 

  716. # ------------------------------------------------------------------------------------------------------------

  717. # QLineEdit and QPushButton combo

  718. 

  719. def getAndSetPath(self_, currentPath, lineEdit):

  720.     newPath = QFileDialog.getExistingDirectory(self_, self_.tr("Set Path"), currentPath, QFileDialog.ShowDirsOnly)

  721.     if newPath:

  722.         lineEdit.setText(newPath)

  723.     return newPath

  724. 

  725. # ------------------------------------------------------------------------------------------------------------

  726. # Custom MessageBox

  727. 

  728. def CustomMessageBox(self_, icon, title, text, extraText="", buttons=QMessageBox.Yes|QMessageBox.No, defButton=QMessageBox.No):

  729.     msgBox = QMessageBox(self_)

  730.     msgBox.setIcon(icon)

  731.     msgBox.setWindowTitle(title)

  732.     msgBox.setText(text)

  733.     msgBox.setInformativeText(extraText)

  734.     msgBox.setStandardButtons(buttons)

  735.     msgBox.setDefaultButton(defButton)

  736.     return msgBox.exec_()