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Add pixel factor in the server so that clients ca push more effective pixels

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Jan Klopper 2016-06-22 12:28:16 +02:00
parent d81f12480a
commit 9b6190b186
2 changed files with 37 additions and 4 deletions
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23
protocol.md Normal file
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@ -0,0 +1,23 @@
# The protocol for the UDP pixelvloed client and server (v1)
Pixelvloed allows clients to send up to a configurable amount of pixels per message.
Each message should contain the RGB or RGBA mode indentifier, and the version bit.
Each pixel in the message is a set of (x,y,r,g,b) or (x,y,r,g,b,a)
X and Y are the positions on screen, and should be unsigned shorts
rgb and a are unsigned chars
All values should be little endian.
Mixing rgb and rgba pixels in one message is not supported.
# The Autodetection system
A pixelvloed server should broadcast a package advertising its settings with the following string content
"%s:%f %s:%d %d*%d" % (PROTOCOL_PREAMBLE, PROTOCOL_VERSION, UDP_IP, UDP_PORT, width, height)
A client should listen for these packages, split it on spaces and check the preample and protocol_version to see if it is capable of speaking the requested protocol.
An example of a broadcasted packet would be:
pixelvloed:1.00 192.168.0.1:5005 1920*1080

18
vloed.py
View file

@ -40,6 +40,7 @@ class Canvas(object):
self.screen = None self.screen = None
self.udp_ip = UDP_IP self.udp_ip = UDP_IP
self.udp_port = UDP_PORT self.udp_port = UDP_PORT
self.factor = options.factor if options.factor else 1
self.width = options.width if options.width else DEFAULT_WIDTH self.width = options.width if options.width else DEFAULT_WIDTH
self.height = options.height if options.height else DEFAULT_HEIGHT self.height = options.height if options.height else DEFAULT_HEIGHT
self.canvas() self.canvas()
@ -74,7 +75,13 @@ class Canvas(object):
"""Print a pixel to the screen""" """Print a pixel to the screen"""
try: try:
if a == 255: if a == 255:
self.pixels[x][y] = (r*256*256) + (g*256) + b color = (r*256*256) + (g*256) + b
if self.factor>1:
for w in xrange(0, self.factor):
for h in xrange(0, self.factor):
self.pixels[(x*self.factor) + w][(y*self.factor) + h] = color
else:
self.pixels[x][y] = color
else: else:
old = self.pixels[x][y] old = self.pixels[x][y]
oldr = old >> 16 oldr = old >> 16
@ -148,9 +155,10 @@ class Canvas(object):
"""Lets send out our ip/port/resolution to any listening clients""" """Lets send out our ip/port/resolution to any listening clients"""
try: try:
self.broadcastsocket.sendto( self.broadcastsocket.sendto(
'%s:%f %s:%d %d*%d' % (PROTOCOL_PREAMBLE, PROTOCOL_VERSION, '%s:%f %s:%d %d*%d' % (
UDP_IP, UDP_PORT, PROTOCOL_PREAMBLE, PROTOCOL_VERSION,
self.width, self.height), UDP_IP, UDP_PORT,
self.width/self.factor, self.height/self.factor),
('<broadcast>', DISCOVER_PORT)) ('<broadcast>', DISCOVER_PORT))
if self.debug: if self.debug:
print 'sending discovery packet' print 'sending discovery packet'
@ -324,5 +332,7 @@ if __name__ == '__main__':
type="int") type="int")
parser.add_option('-m', action="store", dest="maxpixels", default=MAX_PIXELS, parser.add_option('-m', action="store", dest="maxpixels", default=MAX_PIXELS,
type="int") type="int")
parser.add_option('-f', action="store", dest="factor", default=1,
type="int")
options, remainder = parser.parse_args() options, remainder = parser.parse_args()
RunServer(options) RunServer(options)