Modify framebuffer and NGA framebuffer to read screen size from board model dtb file. Optimise memory usuage of frame buffer
Add example minigui application with hooks to profiler (which writes results to S:\). Modified NGA framebuffer to run its own dfc queue at high priority
# This file implements a class which forms an interface to the .cddb
# directory that is maintained by SGI's cdman program.
#
# Usage is as follows:
#
# import readcd
# r = readcd.Readcd()
# c = Cddb(r.gettrackinfo())
#
# Now you can use c.artist, c.title and c.track[trackno] (where trackno
# starts at 1). When the CD is not recognized, all values will be the empty
# string.
# It is also possible to set the above mentioned variables to new values.
# You can then use c.write() to write out the changed values to the
# .cdplayerrc file.
from warnings import warnpy3k
warnpy3k("the cddb module has been removed in Python 3.0", stacklevel=2)
del warnpy3k
import string, posix, os
_cddbrc = '.cddb'
_DB_ID_NTRACKS = 5
_dbid_map = '0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ@_=+abcdefghijklmnopqrstuvwxyz'
def _dbid(v):
if v >= len(_dbid_map):
return string.zfill(v, 2)
else:
return _dbid_map[v]
def tochash(toc):
if type(toc) == type(''):
tracklist = []
for i in range(2, len(toc), 4):
tracklist.append((None,
(int(toc[i:i+2]),
int(toc[i+2:i+4]))))
else:
tracklist = toc
ntracks = len(tracklist)
hash = _dbid((ntracks >> 4) & 0xF) + _dbid(ntracks & 0xF)
if ntracks <= _DB_ID_NTRACKS:
nidtracks = ntracks
else:
nidtracks = _DB_ID_NTRACKS - 1
min = 0
sec = 0
for track in tracklist:
start, length = track
min = min + length[0]
sec = sec + length[1]
min = min + sec / 60
sec = sec % 60
hash = hash + _dbid(min) + _dbid(sec)
for i in range(nidtracks):
start, length = tracklist[i]
hash = hash + _dbid(length[0]) + _dbid(length[1])
return hash
class Cddb:
def __init__(self, tracklist):
if os.environ.has_key('CDDB_PATH'):
path = os.environ['CDDB_PATH']
cddb_path = path.split(',')
else:
home = os.environ['HOME']
cddb_path = [home + '/' + _cddbrc]
self._get_id(tracklist)
for dir in cddb_path:
file = dir + '/' + self.id + '.rdb'
try:
f = open(file, 'r')
self.file = file
break
except IOError:
pass
ntracks = int(self.id[:2], 16)
self.artist = ''
self.title = ''
self.track = [None] + [''] * ntracks
self.trackartist = [None] + [''] * ntracks
self.notes = []
if not hasattr(self, 'file'):
return
import re
reg = re.compile(r'^([^.]*)\.([^:]*):[\t ]+(.*)')
while 1:
line = f.readline()
if not line:
break
match = reg.match(line)
if not match:
print 'syntax error in ' + file
continue
name1, name2, value = match.group(1, 2, 3)
if name1 == 'album':
if name2 == 'artist':
self.artist = value
elif name2 == 'title':
self.title = value
elif name2 == 'toc':
if not self.toc:
self.toc = value
if self.toc != value:
print 'toc\'s don\'t match'
elif name2 == 'notes':
self.notes.append(value)
elif name1[:5] == 'track':
try:
trackno = int(name1[5:])
except ValueError:
print 'syntax error in ' + file
continue
if trackno > ntracks:
print 'track number %r in file %s out of range' % (trackno, file)
continue
if name2 == 'title':
self.track[trackno] = value
elif name2 == 'artist':
self.trackartist[trackno] = value
f.close()
for i in range(2, len(self.track)):
track = self.track[i]
# if track title starts with `,', use initial part
# of previous track's title
if track and track[0] == ',':
try:
off = self.track[i - 1].index(',')
except ValueError:
pass
else:
self.track[i] = self.track[i-1][:off] \
+ track
def _get_id(self, tracklist):
# fill in self.id and self.toc.
# if the argument is a string ending in .rdb, the part
# upto the suffix is taken as the id.
if type(tracklist) == type(''):
if tracklist[-4:] == '.rdb':
self.id = tracklist[:-4]
self.toc = ''
return
t = []
for i in range(2, len(tracklist), 4):
t.append((None, \
(int(tracklist[i:i+2]), \
int(tracklist[i+2:i+4]))))
tracklist = t
ntracks = len(tracklist)
self.id = _dbid((ntracks >> 4) & 0xF) + _dbid(ntracks & 0xF)
if ntracks <= _DB_ID_NTRACKS:
nidtracks = ntracks
else:
nidtracks = _DB_ID_NTRACKS - 1
min = 0
sec = 0
for track in tracklist:
start, length = track
min = min + length[0]
sec = sec + length[1]
min = min + sec / 60
sec = sec % 60
self.id = self.id + _dbid(min) + _dbid(sec)
for i in range(nidtracks):
start, length = tracklist[i]
self.id = self.id + _dbid(length[0]) + _dbid(length[1])
self.toc = string.zfill(ntracks, 2)
for track in tracklist:
start, length = track
self.toc = self.toc + string.zfill(length[0], 2) + \
string.zfill(length[1], 2)
def write(self):
import posixpath
if os.environ.has_key('CDDB_WRITE_DIR'):
dir = os.environ['CDDB_WRITE_DIR']
else:
dir = os.environ['HOME'] + '/' + _cddbrc
file = dir + '/' + self.id + '.rdb'
if posixpath.exists(file):
# make backup copy
posix.rename(file, file + '~')
f = open(file, 'w')
f.write('album.title:\t' + self.title + '\n')
f.write('album.artist:\t' + self.artist + '\n')
f.write('album.toc:\t' + self.toc + '\n')
for note in self.notes:
f.write('album.notes:\t' + note + '\n')
prevpref = None
for i in range(1, len(self.track)):
if self.trackartist[i]:
f.write('track%r.artist:\t%s\n' % (i, self.trackartist[i]))
track = self.track[i]
try:
off = track.index(',')
except ValueError:
prevpref = None
else:
if prevpref and track[:off] == prevpref:
track = track[off:]
else:
prevpref = track[:off]
f.write('track%r.title:\t%s\n' % (i, track))
f.close()