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import pickle
import time
import bisect
import pygtk
pygtk.require( '2.0' )
import gtk
import gobject
from Framework.Constants import Constants
from Framework.CSound.CSoundConstants import CSoundConstants
from Framework.Generation.GenerationConstants import GenerationConstants
from Framework.Core.Profiler import TP
#------------------------------------------------------------------------------
# A base class used to play a collection of Events at their respective onsets
#------------------------------------------------------------------------------
class NoteLooper:
#PRIVATE
DRIFT = 0.01
def dirty_track(self, track):
for i in range(len(self.notes)):
(o,n,c) = self.notes[i]
if n['trackId'] == track:
self.notes[i] = (o,n,'')
#PUBLIC
def __init__( self, range_sec, ticks_per_sec, inst, tvol, mute ):
self.ticks_per_sec = ticks_per_sec # ticks last this long
self.secs_per_tick = 1.0 / ticks_per_sec # precomputed inverse
self.range_sec = range_sec # notes are checked-for, this many seconds in advance
self.range_tick = int( range_sec * ticks_per_sec ) # same, but in ticks
self.inst = inst # instrument for each track
self.tvol = tvol # volume for each track
self.mute = mute # pre-amp for track volume
if len(inst) != len(tvol): print 'ERROR: NoteLooper::__init__() invalid args'
if len(inst) != len(mute): print 'ERROR: NoteLooper::__init__() invalid args'
self.duration = 0 # number of ticks in playback loop
self.prev_duration = 0
self.notes = [] # sorted list of (onset, noteptr, cache)
self.tick0 = 0 # the tick at which playback started
self.time0 = time.time() + 1000000 # the real time at which playback started
def setTick( self, tick ):
self.time0 = time.time()
self.tick0 = tick % self.duration
self.hIdx = bisect.bisect_left(self.notes, self.tick0)
self.prev_duration = 0
def setRate( self, ticks_per_sec):
if ticks_per_sec != self.ticks_per_sec:
t = time.time()
secs_per_tick = 1.0 / ticks_per_sec
if t > self.time0:
self.tick0 += int( (t - self.time0) * ticks_per_sec)
self.time0 = t
self.ticks_per_sec = ticks_per_sec
self.secs_per_tick = secs_per_tick
self.range_tick = ticks_per_sec * self.range_sec
self.notes = [ (o,n,'') for (o,n,c) in self.notes ] #clear cache
self.prev_duration = 0
def setDuration( self, duration ):
self.duration = duration
def getCurrentTick(self, future , domod , t): #t is for time
if domod : return ( self.tick0 + int( ( t + future - self.time0 ) * self.ticks_per_sec ) ) % self.duration
else : return ( self.tick0 + int( ( t + future - self.time0 ) * self.ticks_per_sec ) )
def setVolume(self, track,vol):
if self.tvol[track] != vol:
self.tvol[track] = vol
self.dirty_track(track)
def setInstrument(self, track, inst):
if self.inst[track] != inst:
self.inst[track] = inst
self.dirty_track(track)
def setMute(self, track, m):
if self.mute[track] != m:
self.mute[track] = m
self.dirty_track(track)
def next( self ) :
time_time = time.time()
tickhorizon = self.getCurrentTick( self.range_sec, False, time_time ) #tick where we'll be after range_sec
if tickhorizon < self.tick0 : return []
def cache_cmd(secs_per_tick, amplitude, pitch, iflag, trackId, duration, tied, fullDuration, overlap, attack, decay, reverbSend, filterType, filterCutoff, pan ):
if self.inst[ trackId ] == 'drum1kit':
if pitch in GenerationConstants.DRUMPITCH:
pitch = GenerationConstants.DRUMPITCH[ pitch ]
iflag = CSoundConstants.DRUM1INSTRUMENTS[ pitch ]
pitch = 1
else:
iflag = self.inst[ trackId ]
pitch = GenerationConstants.TRANSPOSE[ pitch - 24 ]
# condition for tied notes
if CSoundConstants.INSTRUMENTS[ iflag ].csoundInstrumentID == 101 and tied and fullDuration:
duration= -1.0
# condition for overlaped notes
if CSoundConstants.INSTRUMENTS[ iflag ].csoundInstrumentID == 102 and overlap:
duration += 1.0
attack = max( 0.002, duration * attack)
decay = max( 0.002, duration * decay)
rval = CSoundConstants.PLAY_NOTE_COMMAND_MINUS_DELAY % \
( CSoundConstants.INSTRUMENTS[ iflag ].csoundInstrumentID,
trackId,
'%f', #delay,
duration,
pitch,
reverbSend,
amplitude,
pan,
CSoundConstants.INSTRUMENT_TABLE_OFFSET + CSoundConstants.INSTRUMENTS[ iflag ].instrumentID,
attack,
decay,
filterType, filterCutoff )
return rval
def getText(i, secs_per_tick, time_offset):
(onset,note,cache) = self.notes[i]
if cache == '' :
self.notes[i] = ( onset, note,
cache_cmd( secs_per_tick,
note['amplitude'] * self.tvol[note['trackId']] * self.mute[note['trackId']],
note['pitch'],
note['instrumentFlag'],
note['trackId'],
note['duration'] * self.secs_per_tick,
note['tied'],
note['fullDuration'],
note['overlap'],
note['attack'],
note['decay'],
note['reverbSend'],
note['filterType'],
note['filterCutoff'],
note['pan']))
rval = self.notes[i][2] % float(onset * self.secs_per_tick + time_offset)
return rval
if self.tick0 != 0:
print self.tick0
raise 'tick0 != 0'
prev_secs = self.prev_duration * self.secs_per_tick
rval = []
while self.notes[self.hIdx][0] + self.prev_duration < tickhorizon:
rval.append ( getText(self.hIdx, self.secs_per_tick, prev_secs + self.DRIFT ) )
self.hIdx += 1
if self.hIdx == len(self.notes):
self.hIdx = 0
self.prev_duration += self.duration
prev_secs += self.secs_per_tick
if False:
if tickhorizon <= self.duration + self.prev_duration:
hIdx = self.hIdx
self.hIdx = hIdxMax = bisect.bisect_left(self.notes, (tickhorizon - self.prev_duration,))
rlist = [(i, self.prev_duration * self.secs_per_tick) for i in range(hIdx, hIdxMax)]
else:
self.hIdx = hIdxMax = bisect.bisect_left(self.notes, (self.duration,))
rlist = [(i, self.prev_duration * self.secs_per_tick) for i in range(self.hIdx, hIdxMax)]
while tickhorizon > self.duration + self.prev_duration: #loop back to tick0 == 0
self.prev_duration += self.duration
tickhorizon -= self.duration
self.hIdx = hIdxMax = bisect.bisect_left(self.notes, (min(tickhorizon - self.prev_duration, self.duration), 0))
rlist += [(i,self.prev_duration * self.secs_per_tick) for i in range(hIdxMax)]
rval = [ getText(i, self.secs_per_tick, looplag) for (i,looplag) in rlist ]
return rval
def insert( self, notes):
def insertMany():
self.notes += [ ( notes[i][0], notes[i][1], '' ) for i in xrange(len(notes)) ]
self.notes.sort()
def insertFew():
for i in xrange(len(notes)):
t = (notes[i][0], notes[i][1],'')
l = bisect.bisect_left(self.notes, t )
self.notes.insert(l, t)
print 't',t
if len(notes) > 6:
insertMany()
else:
insertFew()
def remove(self, note):
def removeFew():
i = 0
while i < len(self.notes):
if self.notes[i][1] in note:
del self.notes[i]
else:
i += 1
def removeMany():
self.notes = [t for t in self.notes if t[1] not in note]
if len(idset) > 6: #just guessing here, should do some timing tests to see if this is good or no
removeMany()
else:
removeFew()
def clear(self):
self.notes = []
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