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effecteval now takes dropped subs and makes new effects out of them Ignore-this: 69423eca1858291f486dd2a202d3732a
author Drew Perttula <drewp@bigasterisk.com>
date Wed, 28 May 2014 07:37:36 +0000
parents aa45e5379c5a
children be016cd5e5c5
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1 #!bin/python
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2 from run_local import log
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3 from twisted.internet import reactor, task
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4 from twisted.internet.defer import inlineCallbacks
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5 import cyclone.web, cyclone.websocket, cyclone.httpclient
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6 import sys, optparse, logging, subprocess, json, re, time, traceback
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7 from rdflib import URIRef, RDF, Literal
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8
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9 sys.path.append(".")
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10 from light9 import networking, showconfig, Submaster, dmxclient
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11 from light9.rdfdb.syncedgraph import SyncedGraph
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12 from light9.curvecalc.curve import Curve
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13 from light9.namespaces import L9, DCTERMS, RDF
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14 from light9.rdfdb.patch import Patch
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15
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16 sys.path.append("/my/proj/homeauto/lib")
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17 sys.path.append("/home/drewp/projects/homeauto/lib")
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18 from cycloneerr import PrettyErrorHandler
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19
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20 class EffectEdit(cyclone.web.RequestHandler):
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21 def get(self):
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22 self.write(open("light9/effecteval/effect.html").read())
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23
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24 class SongEffects(PrettyErrorHandler, cyclone.web.RequestHandler):
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25 def post(self):
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26 song = URIRef(self.get_argument('uri'))
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27 drop = URIRef(self.get_argument('drop'))
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28 ctx = song
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29 now = time.time()
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30 effect = song + "/effect/e-%f" % now
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31 curve = song + "/curve/c-%f" % now
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32 self.settings.graph.patch(Patch(addQuads=[
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33 (song, L9['effect'], effect, ctx),
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34 (effect, RDF.type, L9['Effect'], ctx),
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35 (effect, L9['code'],
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36 Literal('out = sub(%s, intensity=%s)' % (drop.n3(), curve.n3())),
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37 ctx),
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38 (curve, RDF.type, L9['Curve'], ctx),
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39 (curve, L9['points'], Literal('0 0'), ctx),
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40 ]))
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41
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42 class SongEffectsUpdates(cyclone.websocket.WebSocketHandler):
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43 def connectionMade(self, *args, **kwargs):
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44 self.graph = self.settings.graph
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45 self.graph.addHandler(self.updateClient)
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46
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47 def updateClient(self):
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48 # todo: abort if client is gone
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49 playlist = self.graph.value(showconfig.showUri(), L9['playList'])
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50 songs = list(self.graph.items(playlist))
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51 out = []
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52 for s in songs:
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53 out.append({'uri': s, 'label': self.graph.label(s)})
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54 out[-1]['effects'] = sorted(self.graph.objects(s, L9['effect']))
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55 self.sendMessage({'songs': out})
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56
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57
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58 class EffectUpdates(cyclone.websocket.WebSocketHandler):
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59 """
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60 stays alive for the life of the effect page
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61 """
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62 def connectionMade(self, *args, **kwargs):
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63 log.info("websocket opened")
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64 self.uri = URIRef(self.get_argument('uri'))
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65 self.sendMessage({'hello': repr(self)})
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66
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67 self.graph = self.settings.graph
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68 self.graph.addHandler(self.updateClient)
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69
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70 def updateClient(self):
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71 # todo: if client has dropped, abort and don't get any more
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72 # graph updates
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73 self.sendMessage({'code': self.graph.value(self.uri, L9['code'])})
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74
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75 def connectionLost(self, reason):
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76 log.info("websocket closed")
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77
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78 def messageReceived(self, message):
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79 log.info("got message %s" % message)
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80 # write a patch back to the graph
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81
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82 def uriFromCode(s):
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83 # i thought this was something a graph could do with its namespace manager
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84 if s.startswith('sub:'):
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85 return URIRef('http://light9.bigasterisk.com/show/dance2014/sub/' + s[4:])
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86 if s.startswith('song1:'):
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87 return URIRef('http://ex/effect/song1/' + s[6:])
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88 if (s[0], s[-1]) == ('<', '>'):
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89 return URIRef(s[1:-1])
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90 raise NotImplementedError
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91
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92 class EffectNode(object):
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93 def __init__(self, graph, uri):
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94 self.graph, self.uri = graph, uri
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95 self.graph.addHandler(self.prepare)
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96
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97 def prepare(self):
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98 self.code = self.graph.value(self.uri, L9['code'])
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99 m = re.match(r'^out = sub\((.*?), intensity=(.*?)\)', self.code)
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100 if not m:
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101 raise NotImplementedError
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102 subUri = uriFromCode(m.group(1))
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103 subs = Submaster.get_global_submasters(self.graph)
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104 self.sub = subs.get_sub_by_uri(subUri)
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105
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106 intensityCurve = uriFromCode(m.group(2))
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107 self.curve = Curve()
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108
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109 # read from disk ok? how do we know to reread? start with
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110 # mtime. the mtime check could be done occasionally so on
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111 # average we read at most one curve's mtime per effectLoop.
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112
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113 pts = self.graph.value(intensityCurve, L9['points'])
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114 if pts is None:
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115 log.info("curve %r has no points" % intensityCurve)
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116 else:
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117 self.curve.set_from_string(pts)
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118
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119
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120 def eval(self, songTime):
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121 # consider http://waxeye.org/ for a parser that can be used in py and js
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122 level = self.curve.eval(songTime)
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123 scaledSubs = self.sub * level
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124 return scaledSubs
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125
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126
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127 class EffectEval(PrettyErrorHandler, cyclone.web.RequestHandler):
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128 @inlineCallbacks
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129 def get(self):
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130 # return dmx list for that effect
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131 uri = URIRef(self.get_argument('uri'))
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132 response = yield cyclone.httpclient.fetch(
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133 networking.musicPlayer.path('time'))
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134 songTime = json.loads(response.body)['t']
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135
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136 node = EffectNode(self.settings.graph, uri)
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137 outSub = node.eval(songTime)
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138 self.write(json.dumps(outSub.get_dmx_list()))
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139
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140
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141 # Completely not sure where the effect background loop should
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142 # go. Another process could own it, and get this request repeatedly:
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143 class SongEffectsEval(PrettyErrorHandler, cyclone.web.RequestHandler):
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144 def get(self):
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145 song = URIRef(self.get_argument('song'))
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146 effects = effectsForSong(self.settings.graph, song)
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147 raise NotImplementedError
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148 self.write(maxDict(effectDmxDict(e) for e in effects))
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149 # return dmx dict for all effects in the song, already combined
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150
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151 # Or, we could own that loop, like this:
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152 @inlineCallbacks
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153 def effectLoop(graph):
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154 t1 = time.time()
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155 try:
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156 response = json.loads((yield cyclone.httpclient.fetch(
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157 networking.musicPlayer.path('time'))).body)
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158 if response['song'] is not None:
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159 song = URIRef(response['song'])
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160 songTime = response['t']
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161 # Possibilities to make this shut up about graph copies:
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162 # - implement the cheap readonly currentState response
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163 # - do multiple little currentState calls (in this code) over just
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164 # the required triples
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165 # - use addHandler instead and only fire dmx when there is a data
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166 # change (and also somehow call it when there is a time change)
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167
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168 outSubs = []
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169 with graph.currentState(tripleFilter=(song, L9['effect'], None)) as g:
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170 for effectUri in g.objects(song, L9['effect']):
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171 # these should be built once, not per (frequent) update
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172 node = EffectNode(graph, effectUri)
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173 outSubs.append(node.eval(songTime))
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174 out = Submaster.sub_maxes(*outSubs)
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175 # out.get_levels() for a more readable view
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176 dmx = out.get_dmx_list()
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177
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178 if log.isEnabledFor(logging.DEBUG):
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179 log.debug("send dmx: %r", out.get_levels())
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180 yield dmxclient.outputlevels(dmx, twisted=True)
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181 except Exception:
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182 traceback.print_exc()
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183 time.sleep(1)
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184
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185 loopTime = time.time() - t1
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186 log.debug('loopTime %.1f ms', 1000 * loopTime)
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187
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188 class App(object):
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189 def __init__(self, show):
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190 self.show = show
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191 self.graph = SyncedGraph("effectEval")
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192 self.graph.initiallySynced.addCallback(self.launch)
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193
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194 def launch(self, *args):
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195 task.LoopingCall(effectLoop, self.graph).start(1)
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196 SFH = cyclone.web.StaticFileHandler
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197 self.cycloneApp = cyclone.web.Application(handlers=[
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198 (r'/()', SFH,
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199 {'path': 'light9/effecteval', 'default_filename': 'index.html'}),
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200 (r'/effect', EffectEdit),
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201 (r'/(websocket\.js)', SFH, {'path': 'light9/rdfdb/web/'}),
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202 (r'/effect\.js', StaticCoffee, {'src': 'light9/effecteval/effect.coffee'}),
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203 (r'/index\.js', StaticCoffee, {'src': 'light9/effecteval/index.coffee'}),
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204 (r'/effectUpdates', EffectUpdates),
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205 (r'/songEffectsUpdates', SongEffectsUpdates),
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206 (r'/static/(.*)', SFH, {'path': 'static/'}),
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207 (r'/effect/eval', EffectEval),
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208 (r'/songEffects', SongEffects),
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209 (r'/songEffects/eval', SongEffectsEval),
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210 ], debug=True, graph=self.graph)
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211 reactor.listenTCP(networking.effectEval.port, self.cycloneApp)
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212 log.info("listening on %s" % networking.effectEval.port)
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213
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214 class StaticCoffee(PrettyErrorHandler, cyclone.web.RequestHandler):
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215 def initialize(self, src):
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216 super(StaticCoffee, self).initialize()
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217 self.src = src
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218 def get(self):
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219 self.set_header('Content-Type', 'application/javascript')
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220 self.write(subprocess.check_output([
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221 '/usr/bin/coffee', '--compile', '--print', self.src]))
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222
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223
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224 if __name__ == "__main__":
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225 parser = optparse.OptionParser()
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226 parser.add_option('--show',
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227 help='show URI, like http://light9.bigasterisk.com/show/dance2008',
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228 default=showconfig.showUri())
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229 parser.add_option("-v", "--verbose", action="store_true",
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230 help="logging.DEBUG")
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231 parser.add_option("--twistedlog", action="store_true",
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232 help="twisted logging")
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233 (options, args) = parser.parse_args()
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234
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235 log.setLevel(logging.DEBUG if options.verbose else logging.INFO)
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236
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237 if not options.show:
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238 raise ValueError("missing --show http://...")
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239
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240 app = App(URIRef(options.show))
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241 if options.twistedlog:
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242 from twisted.python import log as twlog
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243 twlog.startLogging(sys.stderr)
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244 reactor.run()