First version of PixelVloed, a UDP/Binary PixelFlut server/client

client.py

@@ -0,0 +1,56 @@
+#!/usr/bin/python
+"""This is a udp / binary client
+
+Inspired by the PixelFlut beamer on eth0:winter 2016 and
+code from https://github.com/defnull/pixelflut/
+"""
+
+__version__ = 0.1
+__author__ = "Jan Klopper <jan@underdark.nl>"
+
+import socket
+import struct
+import random
+
+def RGBPixel(x, y, r, g, b, a=None): # pylint: disable=C0103
+  """Generates the packed data for a pixel"""
+  if a:
+    return struct.pack("<2H4B", x, y, r, g, b, a)
+  return struct.pack("<2H3B", x, y, r, g, b)
+
+def SetRGBAMode(mode):
+  """Generate the rgb/rgba bit"""
+  return struct.pack("<?", mode)
+
+def SetVersionBit(protocol=1):
+  """Generate the Version bit"""
+  return struct.pack("<B", protocol)
+
+def RandomFill(width=640, height=480):
+  """Generates a random number of pixels with a random color"""
+  message = SetRGBAMode(False)
+  message += SetVersionBit()
+  for pixel in xrange(0, random.randint(10, 100)):
+    message += RGBPixel(random.randint(0, width),
+                        random.randint(0, height),
+                        random.randint(0, 255),
+                        random.randint(0, 255),
+                        random.randint(0, 255))
+  return message
+
+def SendPacket(ipaddress, port, message):
+  """Sends the message to the udp server"""
+  sock = socket.socket(socket.AF_INET, # Internet
+                       socket.SOCK_DGRAM) # UDP
+  sock.sendto(message, (ipaddress, port))
+
+def main():
+  """Sends some random pixels untill we break with ctrl+c"""
+  ipaddress = "127.0.0.1"
+  port = 5005
+
+  while True:
+    SendPacket(ipaddress, port, RandomFill())
+
+if __name__ == '__main__':
+  main()