test

gistfile1.py

#!/usr/bin/env python
# -*- coding: utf-8 -*-
#
# dmx512 library
# sending dmx-frames, the class handles buffering of channels
# and only packs data frames long as needed.
#
# example usage:
# dmx=dmx512.dmx
# dmx.set_channel(1,255)
# dmx.set_channel(419,39)
# dmx.send()
#
# dmx.channel[21] //get buffer of channel 21
#

import array



class dmx:
	
	def __init__(self):
		self.channel=array.array('B')
		self.channel_new=array.array('B')
		for i in range(512):
			self.channel.append(0)
			self.channel_new.append(0)
		self.channels_change=array.array('H')
		self.dataframe=array.array('B')	
	
	
	def reset_internal_buffers(self):
		for i in range(512):
			self.channel_new.append(0)
		del self.channels_change, self.dataframe
		self.channels_change=array.array('H')
		self.dataframe=array.array('B')
		
			
	def set_channel(self,channel,value):
		self.channel_new[channel]=value
		self.channels_change.append(channel)
		
	
	def build_sendframe(self):
		for i in range(0,max(self.channels_change)+1):
			if i in self.channels_change:
				self.dataframe.append(self.channel_new[i])
			else:
				self.dataframe.append(self.channel[i])
	

	def send(self):
		for i in range(0,max(self.channels_change)+1):
			if i in self.channels_change:
				self.channel[i]=self.dataframe[i]
		print self.dataframe
		self.reset_internal_buffers()