def __init__(self):
self.devices = None
self._openedInputs = {}
self._openedOutputs = {}
logger.info("Initializing MIDI")
pygame.midi.init()
self.rescan()
def run(self):
logger.debug("AudioOutputLoop started")
self._isRunning = True
while self._isRunning:
startTime = clock()
self._lock.acquire(True)
# do cool stuff here
if self.numFrames + self._bufferSize > self.totalFrames:
self._isRunning = False
else:
startFrame = self.numFrames
endFrame = startFrame + self._bufferSize * 2
bytesOut = bytes(self.allsamples[startFrame:endFrame])
sound = pygame.mixer.Sound(self.allsamples[startFrame:endFrame])
self._channel.play(sound)
self.numFrames += self._bufferSize * 2
stopTime = clock()
timeInBlockInSec = (stopTime - startTime)
sleepTime = self._maxTimePerBlockInSec - timeInBlockInSec
if sleepTime < 0:
logger.warn("Audio dropout!")
else:
logger.info("CPU: %f", 100 * timeInBlockInSec / self._maxTimePerBlockInSec)
sleep(sleepTime)
self._lock.release()
def quit(self):
self._lock.acquire(True)
if self.devices is not None:
self.devices.closeAll()
self._isRunning = False
self._lock.release()
logger.info("Closed all MIDI devices")
def _processEvent(self, event):
eventType = pygame.event.event_name(event.type)
try:
processFunction = getattr(self.mainDelegate, "on" + eventType)
processFunction(event.dict)
except AttributeError as exception:
logger.info("Error handling event '" + eventType + "': " + str(exception))
except pygame.error as exception:
logger.error("Error from pygame: " + str(exception))
def rescan(self):
self.devices = {}
logger.info("Audio device rescan started")
devices = pygame.mixer.get_devices()
logger.debug("Found %d devices", len(devices))
for device in devices:
(name, numInputs, numOutputs) = device
scannedDevice = AudioDevice(name, numInputs, numOutputs)
self.devices[name] = scannedDevice
logger.debug("%s", scannedDevice)
def __init__(self):
logger.info("Lucidity initialized. Hello there!")
self.mainDelegate = MainDelegate()
self.mainDelegate.mainApp = self
self.sequence = Sequence()
self.settings = Settings(PathFinder.findUserFile('settings.db'))
self.mediaRequestLoop = MediaRequestLoop(PathFinder.findUserFile('media.db'))
self.midiEventLoop = MidiEventLoop(self.mainDelegate)
self.statusLoop = StatusLoop()
self.systemUsageLoop = SystemUsageLoop()
self.mainWindow = None
def _processRequest(self, request:MediaRequest):
if request.type == MediaRequest.Operations.SEARCH:
results = self._search(request.query)
if request.delegate is not None:
request.delegate.onRequestComplete(request, results)
elif request.type == MediaRequest.Operations.RESCAN:
self._rescanLibrary()
if request.delegate is not None:
request.delegate.onRequestComplete(request, "Rescan finished")
elif request.type == MediaRequest.Operations.QUIT:
self._isRunning = False
else:
logger.info("Unknown media request type '" + request.type + "'")
def open(self):
"""
Open up the window for the application. This must, sadly, be done in the main
thread, or else the window will not properly respond to events.
"""
windowFlags = self.getWindowFlags(self.settings)
self.surface = pygame.display.set_mode(self._resolution, windowFlags)
self._printVideoInfo(pygame.display.Info())
logger.info("Initialized display with driver: " + pygame.display.get_driver())
self.surface.fill(self._skin.guiColor("Background"))
self._initializePanels(self._resolution, self._skin)
pygame.display.flip()
self._statusLoop.statusProvider = self.getStatusProvider(self.settings)
def quit(self):
logger.info("Lucidity is quitting. Bye-bye!")
self.mainWindow.setStatusText("Shutting Down...")
if self.statusLoop.is_alive():
self.statusLoop.quit()
self.statusLoop.join()
if self.systemUsageLoop.is_alive():
self.systemUsageLoop.quit()
self.systemUsageLoop.join()
if self.mediaRequestLoop.is_alive():
self.mediaRequestLoop.quit()
self.mediaRequestLoop.join()
if self.midiEventLoop.is_alive():
self.midiEventLoop.quit()
self.midiEventLoop.join()
self.mainWindow.quit()
def _rescanLocation(self, location):
logger.info("Scanning folder '%s'", location[1])
totalFilesFound = 0
newFilesFound = 0
missingFilesFound = 0
updatedFiles = 0
for filePath in self._scanDirectory(location[1], []):
mediaFile = MediaFile(filePath)
if mediaFile.exists:
# See if the file is already in the database
mediaFileId = None
mediaFile.readMetadataFromFile(filePath)
mediaFileRelativePath = mediaFile.relativePath(location[1])
searchResultIds = self.search(mediaFileRelativePath, ['relativePath'], matchExact = True)
if isinstance(searchResultIds, list):
for result in searchResultIds:
if result.absolutePath == mediaFile.absolutePath:
mediaFileId = result.id
break
if mediaFileId not in self.mediaFiles.keys():
newId = self._addFileToDatabase(mediaFile, location)
mediaFile.id = newId
newFilesFound += 1
else:
# The ID is specific to the database, so this newly-created
# object won't have one yet. That means that this equality
# comparison would fail, so we copy the ID to this object.
mediaFile.id = mediaFileId
if mediaFile != self.mediaFiles[mediaFileId]:
self._updateFileInDatabase(mediaFile)
updatedFiles += 1
self.mediaFiles[mediaFile.id] = mediaFile
# logger.debug(mediaFile)
totalFilesFound += 1
else:
if filePath in self.mediaFiles.keys():
del self.mediaFiles[filePath]
missingFilesFound += 1
logger.info("Found %d files, %d new, %d updated, %d missing",
totalFilesFound, newFilesFound, updatedFiles, missingFilesFound)
def __init__(self, audioDevice, sampleRate = 44100, bufferSize = 512):
Thread.__init__(self, name = "AudioOutputLoop")
self._lock = Lock()
self._isRunning = False
self._audioDevice = audioDevice
self._bufferSize = bufferSize
self._sampleRate = sampleRate
self._maxTimePerBlockInSec = bufferSize / sampleRate
pygame.mixer.init(deviceName = audioDevice.name, frequency = sampleRate, buffer = bufferSize)
self._channel = pygame.mixer.find_channel()
self.testWave = wave.open("./tests/resources/test.wav", "r")
self.totalFrames = self.testWave.getnframes()
self.allsamples = self.testWave.readframes(self.totalFrames)
self._byteArray = bytearray(self._bufferSize * 2)
self.numFrames = 0
logger.info("Mixer initialized")
def close(self):
logger.info("Closing MIDI output '" + self.name + "'")
if self.port is not None:
self.port.close()
def open(self):
logger.info("Opening MIDI output '" + self.name + "'")
self.port = pygame.midi.Output(self._id)
def onActiveEvent(self, eventDict):
"""Called when the application window enters the foreground"""
gain = eventDict['gain']
state = eventDict['state']
logger.info("Application activated, gain: " + str(gain) + ", state: " + str(state))
def onReset(self):
"""Remove all items from the arrangement"""
logger.info("Reset called")
self.mainGrid.reset()
