LJ/libs3/tracer3.py

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#!/usr/bin/python3
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# -*- coding: utf-8 -*-
# -*- mode: Python -*-
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'''
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Tracer v0.8.2
Etherdream DACs handler on network via Redis
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LICENCE : CC
Sam Neurohack, pclf
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Includes live conversion in etherdream coordinates, geometric corrections, color balance change, intensity limitation, grid display,...
One tracer process is launched per requested laser by LJ. Lasers parameters in LJ.conf.
Live I/O based on redis keys : inputs (Pointlists to draw,...) and outputs (DAC state, errors,..).
Keys are mostly read and set at each main loop.
This tracer include an enhanced version (support for several lasers) of the etherdream python library from j4cDAC.
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* Redis keys reference *
- Drawing things :
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/pl/Scene/lasernumber [(x,y,color),(x1,y1,color),...] The live list of drawn pygame points. Tracer continously ask redis for key /clientkey+lasernumber
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/resampler/lasernumber [(1.0,8), (0.25,3),(0.75,3),(1.0,10)] : a string for resampling rules.
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the first tuple (1.0,8) is for short line < 4000 in etherdream space
(0.25,3),(0.75,3),(1.0,10) for long line > 4000
i.e (0.25,3) means go at 25% position on the line, send 3 times this position to etherdream
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/clientkey "/pl/SceneNumber/" What Scene to retrieve from redis
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/EDH/lasernumber
- Tracer control :
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/order 0-8 Set redis key with new value then issue the order number
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0 : Draw Normal point list
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1 : Get the new EDH = reread redis key /EDH/lasernumber
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2 : Draw BLACK point list
3 : Draw GRID point list
4 : Resampler Change (longs and shorts lsteps)
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5 : Client Key Change = reread redis key /clientkey
6 : Max Intensity Change = reread redis key /intensity
7 : kpps change = reread redis key /kpps
8 : color balance change = reread redis keys /red /green /blue
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9 : shutdown
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- Managing Etherdream DACs :
Discrete drawing values
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/kpps 0- DAC output speed to laser, then order 7. Depends of actual angle
/intensity 0-255 Laser output power, then order 6 (for alignement,...)
/red 0-100 % of full red, then order 8
/green 0-100 % of full green, then order 8
/blue 0-100 % of full blue, then order 8
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DAC status report
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/lstt/lasernumber etherdream last_status.playback_state (0: idle 1: prepare 2: playing)
/cap/lasernumber number of empty points sent to fill etherdream buffer (up to 1799)
/lack/lasernumber "a": ACK "F": Full "I": invalid. 64 or 35 for no connection.
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Geometric corrections
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Doctodo
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'''
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import socket
import time
import struct
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#from gstt import debug
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from libs3 import gstt,log
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import math
from itertools import cycle
#from globalVars import *
import pdb
import ast
import redis
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from libs3 import homographyp
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import numpy as np
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import binascii
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black_points = [(278.0,225.0,0),(562.0,279.0,0),(401.0,375.0,0),(296.0,454.0,0),(298.0,165.0,0)]
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grid_points = [(300.0,200.0,0),(500.0,200.0,65280),(500.0,400.0,65280),(300.0,400.0,65280),(300.0,200.0,65280),(300.0,200.0,0),(200.0,100.0,0),(600.0,100.0,65280),(600.0,500.0,65280),(200.0,500.0,65280),(200.0,100.0,65280)]
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r = redis.StrictRedis(host=gstt.RediServerIP, port=6379, db=0)
# r = redis.StrictRedis(host=gstt.RediServerIP , port=6379, db=0, password='-+F816Y+-')
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ackstate = {'61': 'ACK', '46': 'FULL', '49': "INVALID", '21': 'STOP', '64': "NO CONNECTION ?", '35': "NO CONNECTION ?" , '97': 'ACK', '70': 'FULL', '73': "INVALID", '33': 'STOP', '100': "NOCONNECTION", '48': "NOCONNECTION", 'a': 'ACK', 'F': 'FULL', 'I': "INVALID", '!': 'STOP', 'd': "NO CONNECTION ?", '0': "NO CONNECTION ?"}
lstate = {'0': 'IDLE', '1': 'PREPARE', '2': "PLAYING", '64': "NOCONNECTION ?" }
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ScreenX = [-1500,1500]
ScreenY = [-1500,1500]
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def pack_point(laser, intensity, x, y, r, g, b, i = -1, u1 = 0, u2 = 0, flags = 0):
"""Pack some color values into a struct dac_point."""
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#print("Tracer", laser,":", r,g,b,"intensity", intensity, "i", i)
if r > intensity:
r = intensity
if g > intensity:
g = intensity
if b > intensity:
b = intensity
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if max(r, g, b) == 0:
i = 0
else:
i = intensity
x = int(x)
y = int(y)
#print("Tracer ", laser, ": packing", x, y, r, g, b, "intensity", intensity, "i", i)
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if x < -32767:
if gstt.debug >1:
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log.err("Tracer "+ str(laser) +" : x coordinates " + str(x) + " was below -32767")
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x = -32700
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if x > 32767:
if gstt.debug >1:
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log.err("Tracer "+ str(laser) +" : x coordinates "+ str(x) + " was bigger than 32767")
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x = 32700
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if y < -32767:
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if gstt.debug >1:
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log.err("Tracer "+ str(laser) +" : y coordinates "+ str(y) + " was below -32767")
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y = -32700
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if y > 32767:
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if gstt.debug >1:
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log.err("Tracer "+ str(laser) +" : y coordinates "+ str(y) + " was bigger than 32767")
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y = 32700
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return struct.pack("<HhhHHHHHH", flags, x, y, r, g, b, i, u1, u2)
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#return struct.pack("<HhhHHHHHH", flags, round(x), round(y), r, g, b, i, u1, u2)
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class ProtocolError(Exception):
"""Exception used when a protocol error is detected."""
pass
class Status(object):
"""Represents a status response from the DAC."""
def __init__(self, data):
"""Initialize from a chunk of data."""
self.protocol_version, self.le_state, self.playback_state, \
self.source, self.le_flags, self.playback_flags, \
self.source_flags, self.fullness, self.point_rate, \
self.point_count = \
struct.unpack("<BBBBHHHHII", data)
def dump(self, prefix = " - "):
"""Dump to a string."""
lines = [
""
"Host ",
"Light engine: state %d, flags 0x%x" %
(self.le_state, self.le_flags),
"Playback: state %d, flags 0x%x" %
(self.playback_state, self.playback_flags),
"Buffer: %d points" %
(self.fullness, ),
"Playback: %d kpps, %d points played" %
(self.point_rate, self.point_count),
"Source: %d, flags 0x%x" %
(self.source, self.source_flags)
]
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if gstt.debug == 2:
print()
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for l in lines:
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print(prefix + l)
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class BroadcastPacket(object):
"""Represents a broadcast packet from the DAC."""
def __init__(self, st):
"""Initialize from a chunk of data."""
self.mac = st[:6]
self.hw_rev, self.sw_rev, self.buffer_capacity, \
self.max_point_rate = struct.unpack("<HHHI", st[6:16])
self.status = Status(st[16:36])
def dump(self, prefix = " - "):
"""Dump to a string."""
lines = [
"MAC: " + ":".join(
"%02x" % (ord(o), ) for o in self.mac),
"HW %d, SW %d" %
(self.hw_rev, self.sw_rev),
"Capabilities: max %d points, %d kpps" %
(self.buffer_capacity, self.max_point_rate)
]
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print()
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for l in lines:
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print(prefix + l)
if gstt.debug > 1:
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self.status.dump(prefix)
class DAC(object):
"""A connection to a DAC."""
# "Laser point List" Point generator
# each points is yielded : Getpoints() call n times OnePoint()
def OnePoint(self):
while True:
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#pdb.set_trace()
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for indexpoint,currentpoint in enumerate(self.pl):
#print indexpoint, currentpoint
xyc = [currentpoint[0],currentpoint[1],currentpoint[2]]
self.xyrgb = self.EtherPoint(xyc)
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#print(self.xyrgb[2:])
rgb = (round(self.xyrgb[2:][0] *self.intred/100), round(self.xyrgb[2:][1] *self.intgreen/100), round(self.xyrgb[2:][2] *self.intblue/100))
#print("rgb :", rgb)
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#round(*self.intred/100)
#round(*self.intgreen/100)
#round(*self.intblue/100)
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delta_x, delta_y = self.xyrgb[0] - self.xyrgb_prev[0], self.xyrgb[1] - self.xyrgb_prev[1]
#test adaptation selon longueur ligne
if math.hypot(delta_x, delta_y) < 4000:
# For glitch art : decrease lsteps
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#l_steps = [ (1.0, 8)]
l_steps = gstt.stepshortline
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else:
# For glitch art : decrease lsteps
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#l_steps = [ (0.25, 3), (0.75, 3), (1.0, 10)]
l_steps = gstt.stepslongline
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for e in l_steps:
step = e[0]
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for i in range(0,e[1]):
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self.xyrgb_step = (self.xyrgb_prev[0] + step*delta_x, self.xyrgb_prev[1] + step*delta_y) + rgb # + self.xyrgb_prev[2:]# + rgb
#print(self.xyrgb_step)
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yield self.xyrgb_step
self.xyrgb_prev = self.xyrgb
def GetPoints(self, n):
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d = [next(self.newstream) for i in range(n)]
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#print d
return d
# Etherpoint all transform in one matrix, with warp !!
# xyc : x y color
def EtherPoint(self,xyc):
c = xyc[2]
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#print("")
#print("pygame point",[(xyc[0],xyc[1],xyc[2])])
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#gstt.EDH[self.mylaser]= np.array(ast.literal_eval(r.get('/EDH/'+str(self.mylaser))))
position = homographyp.apply(gstt.EDH[self.mylaser],np.array([(xyc[0],xyc[1])]))
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#print("etherdream point",position[0][0], position[0][1], ((c >> 16) & 0xFF) << 8, ((c >> 8) & 0xFF) << 8, (c & 0xFF) << 8)
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return (position[0][0], position[0][1], ((c >> 16) & 0xFF) << 8, ((c >> 8) & 0xFF) << 8, (c & 0xFF) << 8)
def read(self, l):
"""Read exactly length bytes from the connection."""
while l > len(self.buf):
self.buf += self.conn.recv(4096)
obuf = self.buf
self.buf = obuf[l:]
return obuf[:l]
def readresp(self, cmd):
"""Read a response from the DAC."""
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data = self.read(22)
response = data[0]
gstt.lstt_dacanswers[self.mylaser] = response
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cmdR = chr(data[1])
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status = Status(data[2:])
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r.set('/lack/'+str(self.mylaser), response)
if cmdR != cmd:
raise ProtocolError("expected resp for %r, got %r"
% (cmd, cmdR))
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if response != ord('a'):
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raise ProtocolError("expected ACK, got %r"
% (response, ))
self.last_status = status
return status
def __init__(self, mylaser, PL, port = 7765):
"""Connect to the DAC over TCP."""
socket.setdefaulttimeout(2)
self.mylaser = mylaser
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self.clientkey = r.get("/clientkey").decode('ascii')
#log.info("Tracer "+str(self.mylaser)+" connecting to "+ gstt.lasersIPS[mylaser])
#print("DAC", self.mylaser, "Handler process, connecting to", gstt.lasersIPS[mylaser] )
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self.conn = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
self.connstatus = self.conn.connect_ex((gstt.lasersIPS[mylaser], port))
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if self.connstatus == 35 or self.connstatus == 64:
log.err("Tracer "+ str(self.mylaser)+" ("+ gstt.lasersIPS[mylaser]+"): "+ackstate[str(self.connstatus)])
else:
print("Tracer "+ str(self.mylaser)+" ("+ gstt.lasersIPS[mylaser]+"): "+ackstate[str(self.connstatus)])
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# ipconn state is -1 at startup (see gstt) and modified here
r.set('/lack/'+str(self.mylaser), self.connstatus)
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gstt.lstt_ipconn[self.mylaser] = self.connstatus
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self.buf = b''
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# Upper case PL is the Point List number
self.PL = PL
# Lower case pl is the actual point list coordinates
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#pdb.set_trace()
self.pl = ast.literal_eval(r.get(self.clientkey + str(self.mylaser)).decode('ascii'))
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if r.get('/EDH/'+str(self.mylaser)) == None:
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#print("Laser",self.mylaser,"NO EDH !! Computing one...")
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homographyp.newEDH(self.mylaser)
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else:
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gstt.EDH[self.mylaser] = np.array(ast.literal_eval(r.get('/EDH/'+str(self.mylaser)).decode('ascii')))
#print("Laser",self.mylaser,"found its EDH in redis")
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#print gstt.EDH[self.mylaser]
self.xyrgb = self.xyrgb_prev = (0,0,0,0,0)
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self.intensity = 65280
self.intred = 100
self.intgreen = 100
self.intblue = 100
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self.newstream = self.OnePoint()
if gstt.debug >0:
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print("Tracer",self.mylaser,"init asked for ckey", self.clientkey+str(self.mylaser))
if self.connstatus != 0:
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#print(""
log.err("Connection ERROR " +str(self.connstatus)+" with laser "+str(mylaser)+" : "+str(gstt.lasersIPS[mylaser]))
#print("first 10 points in PL",self.PL, self.GetPoints(10)
else:
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print("Connection status for DAC "+str(self.mylaser)+" : "+ str(self.connstatus))
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# Reference points
# Read the "hello" message
first_status = self.readresp("?")
first_status.dump()
position = []
def begin(self, lwm, rate):
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cmd = struct.pack("<cHI", b'b', lwm, rate)
print("Tracer", str(self.mylaser), "begin with PL : ", str(self.PL))
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self.conn.sendall(cmd)
return self.readresp("b")
def update(self, lwm, rate):
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print(("update", lwm, rate))
cmd = struct.pack("<cHI", b'u', lwm, rate)
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self.conn.sendall(cmd)
return self.readresp("u")
def encode_point(self, point):
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return pack_point(self.mylaser, self.intensity, *point)
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def write(self, points):
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epoints = list(map(self.encode_point, points))
cmd = struct.pack("<cH", b'd', len(epoints))
self.conn.sendall(cmd + b''.join(epoints))
return self.readresp('d')
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def prepare(self):
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self.conn.sendall(b'p')
return self.readresp('p')
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def stop(self):
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self.conn.sendall('s')
return self.readresp('s')
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def estop(self):
self.conn.sendall("\xFF")
return self.readresp("\xFF")
def clear_estop(self):
self.conn.sendall("c")
return self.readresp("c")
def ping(self):
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self.conn.sendall('?')
return self.readresp('?')
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def play_stream(self):
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#print("laser", self.mylaser, "Pb : ",self.last_status.playback_state)
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# error if etherdream is already playing state (from other source)
if self.last_status.playback_state == 2:
raise Exception("already playing?!")
# if idle go to prepare state
elif self.last_status.playback_state == 0:
self.prepare()
started = 0
while True:
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#print("laser", self.mylaser, "Pb : ",self.last_status.playback_state)
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order = int(r.get('/order/'+str(self.mylaser)).decode('ascii'))
#print("tracer", str(self.mylaser),"order", order, type(order)
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if order == 0:
# USER point list
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#self.pl = ast.literal_eval(r.get(self.clientkey+str(self.mylaser)).decode('ascii'))
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#print("Tracer : laser", self.mylaser, " order 0 : pl : ",len(self.pl))
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# si la clef est vide utiliser les points noirs ? -> syntax error -> black points.
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try:
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#newpl = ""
#newpl = r.get(self.clientkey+str(self.mylaser))
#self.pl = ast.literal_eval(newpl.decode('ascii'))
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self.pl = ast.literal_eval(r.get(self.clientkey+str(self.mylaser)).decode('ascii'))
except SyntaxError:
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print("BAD POINTLIST on Tracer : laser", self.mylaser, " order 0 : pl : ", self.pl)
self.pl = black_points
#print("Tracer : laser", self.mylaser, " order 0 : pl : ",len(self.pl))
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else:
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# Get the new EDH
if order == 1:
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print("Tracer",self.mylaser,"new EDH ORDER in redis")
gstt.EDH[self.mylaser]= np.array(ast.literal_eval(r.get('/EDH/'+str(self.mylaser)).decode('ascii')))
# Back to user point list
r.set('/order/'+str(self.mylaser), 0)
# BLACK point list
if order == 2:
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print("Tracer",self.mylaser,"BLACK ORDER in redis")
self.pl = black_points
# GRID point list
if order == 3:
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print("Tracer",self.mylaser,"GRID ORDER in redis")
self.pl = grid_points
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# Resampler Change
if order == 4:
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self.resampler = ast.literal_eval(r.get('/resampler/'+str(self.mylaser)).decode('ascii'))
print("Tracer", self.mylaser," : resetting lsteps for",self.resampler)
gstt.stepshortline = self.resampler[0]
gstt.stepslongline[0] = self.resampler[1]
gstt.stepslongline[1] = self.resampler[2]
gstt.stepslongline[2] = self.resampler[3]
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# Back to user point list order
r.set('/order/'+str(self.mylaser), 0)
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# Client Key change
if order == 5:
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print("Tracer", self.mylaser, "new clientkey")
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self.clientkey = r.get('/clientkey')
# Back to user point list order
r.set('/order/'+str(self.mylaser), 0)
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# Intensity change
if order == 6:
self.intensity = int(r.get('/intensity/' + str(self.mylaser)).decode('ascii')) << 8
print("Tracer" , self.mylaser, "new Intensity", self.intensity)
gstt.intensity[self.mylaser] = self.intensity
r.set('/order/'+str(self.mylaser), "0")
# kpps change
if order == 7:
gstt.kpps[self.mylaser] = int(r.get('/kpps/' + str(self.mylaser)).decode('ascii'))
print("Tracer",self.mylaser,"new kpps", gstt.kpps[self.mylaser])
self.update(0, gstt.kpps[self.mylaser])
r.set('/order/'+str(self.mylaser), "0")
# color balance change
if order == 8:
self.intred = int(r.get('/red/' + str(self.mylaser)).decode('ascii'))
self.intgreen = int(r.get('/green/' + str(self.mylaser)).decode('ascii'))
self.intblue = int(r.get('/blue/' + str(self.mylaser)).decode('ascii'))
print("Tracer", self.mylaser, "new color balance", self.intred,"% ", self.intgreen, "% ",self.intblue,"% ")
r.set('/order/'+str(self.mylaser), "0")
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r.set('/lstt/'+str(self.mylaser), self.last_status.playback_state)
# pdb.set_trace()
# How much room?
cap = 1799 - self.last_status.fullness
points = self.GetPoints(cap)
r.set('/cap/'+str(self.mylaser), cap)
if cap < 100:
time.sleep(0.001)
cap += 150
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#print("Writing %d points" % (cap, ))
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#t0 = time.time()
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#if self.mylaser == 2:
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# print(points)
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self.write(points)
#t1 = time.time()
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#print("Took %f" % (t1 - t0, )
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if not started:
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print("Tracer", self.mylaser, "starting with", gstt.kpps[self.mylaser],"kpps")
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self.begin(0, gstt.kpps[self.mylaser])
started = 1
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# not used in LJ.
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def find_dac():
"""Listen for broadcast packets."""
s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
s.bind(("0.0.0.0", 7654))
while True:
data, addr = s.recvfrom(1024)
bp = BroadcastPacket(data)
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print(("Packet from %s: " % (addr, )))
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bp.dump()
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'''
#Laser order bit 0 = 0
if not order & (1 << (self.mylaser*2)):
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#print("laser",mylaser,"bit 0 : 0")
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# Laser bit 0 = 0 and bit 1 = 0 : USER PL
if not order & (1 << (1+self.mylaser*2)):
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#print("laser",mylaser,"bit 1 : 0")
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self.pl = ast.literal_eval(r.get('/pl/'+str(self.mylaser)))
else:
# Laser bit 0 = 0 and bit 1 = 1 : New EDH
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#print("laser",mylaser,"bit 1 : 1" )
print("Laser",self.mylaser,"new EDH ORDER in redis"
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gstt.EDH[self.mylaser]= np.array(ast.literal_eval(r.get('/EDH/'+str(self.mylaser))))
# Back to USER PL
order = r.get('/order')
neworder = order & ~(1<< self.mylaser*2)
neworder = neworder & ~(1<< 1+ self.mylaser*2)
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r.set('/order', str(neworder))
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else:
# Laser bit 0 = 1
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print("laser",mylaser,"bit 0 : 1")
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# Laser bit 0 = 1 and bit 1 = 0 : Black PL
if not order & (1 << (1+self.mylaser*2)):
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#print("laser",mylaser,"bit 1 : 0")
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self.pl = black_points
else:
# Laser bit 0 = 1 and bit 1 = 1 : GRID PL
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#print("laser",mylaser,"bit 1 : 1" )
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self.pl = grid_points
'''