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import sys
from cStringIO import StringIO
import puremixer
import wingame
from music1 import Music
class Sound:
# Mono only
has_sound = has_music = 0 # until initialized
BUFFERTIME = 0.09
FLOPTIME = 0.07
def __init__(self, freq=44100, bits=16):
self.freq = int(freq)
self.bits = int(bits)
self.bufsize = (int(self.BUFFERTIME*self.freq*self.bits/8) + 64) & ~63
try:
self.audio = wingame.Audio(1, self.freq, self.bits, self.bufsize)
except Exception, e:
print >> sys.stderr, "sound disabled: %s: %s" % (
e.__class__.__name__, e)
return
self.mixer = puremixer.PureMixer(self.freq, self.bits, self.bits==16,
byteorder='little')
self.mixer_channels = []
self.mixer_accum = {}
self.has_sound = 1
self.has_music = 1
def stop(self):
self.audio.close()
def sound(self, f):
return self.mixer.wavesample(f.fopen())
def flop(self):
self.mixer_accum = {}
while self.audio.ready():
self.audio.write(self.mixer.mix(self.mixer_channels, self.bufsize))
return self.FLOPTIME
def play(self, sound, lvolume, rvolume):
# volume ignored
if sound not in self.mixer_accum:
self.mixer_channels.append(StringIO(sound))
self.mixer_accum[sound] = 1
def play_musics(self, musics, loop_from):
self.cmusics = musics, loop_from, -1
self.mixer_channels.insert(0, self)
def read(self, size):
"Provide some more data to self.mixer.poll()."
musics, loop_from, c = self.cmusics
if c < 0:
data = ''
else:
data = musics[c].mixed.decode(self.mixer, size)
if not data:
c += 1
if c >= len(musics): # end
c = loop_from
if c >= len(musics):
return ''
self.cmusics = musics, loop_from, c
try:
mixed = musics[c].mixed
except AttributeError:
mixed = musics[c].mixed = Music(musics[c].freezefilename())
mixed.openchannel()
data = mixed.decode(self.mixer, size)
if 0 < len(data) < size:
data += self.read(size - len(data))
return data
def fadeout(self, millisec):
self.cmusics = [], 0, -1
def htmloptionstext(nameval):
import modes
l = ['<font size=-1>Sampling <%s>' % nameval('select', 'bits')]
for bits in (8, 16):
l.append('<'+nameval('option', 'bits', str(bits), default='16')+'>'+
'%d bits' % bits)
l+= ['</select> rate ',
'<%s size=5>Hz</font>' % nameval('text', 'freq', default='44100'),
'<br>',
modes.musichtmloptiontext(nameval)]
return '\n'.join(l)
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