pyjack-0.5.2/blender/blender-jacktrans.py

   1 #!BPY
   2 # -*- coding: utf-8 -*-
   3 """
   4 Name: 'Jack Transport'
   5 Blender: 249
   6 Group: 'Misc'
   7 Tooltip: 'Makes jack and blender synced'
   8 """
   9 __script__ = "Jack Transport"
  10 __author__ = "falkTX"
  11 __version__ = "0.1"
  12 __url__ = ["Communicate problems and errors, BlenderArtists.org, Python forum"]
  13 __email__= ["falktx@gmail.com", "blender-pyjack script"]
  14 __bpydoc__ = """\
  15 blender-jacktransport.py v0.1
  16
  17 Version History:
  18  0.1: Initial release
  19 """
  20
  21 # Depends from PyJack-0.2
  22 # Uses code from bpyjack.py by IL'dar AKHmetgaleev (aka AkhIL)
  23
  24 # Tried to get this as fast (and simple) as possible
  25
  26 import bpy
  27 import jack, time, sys
  28 import Blender
  29 from Blender import *
  30
  31 play_button = Draw.Create(False)
  32 BEV_PLAY = 1
  33 BEV_EXIT = 2
  34 BEV_PREV = 3
  35 BEV_NEXT = 4
  36 BEV_START = 5
  37 ret_blender_curr = 0
  38 ret_blender_next = 0
  39 ret_jack_current = 0
  40 prev_blen = 0
  41 prev_jack = 0
  42
  43 try:
  44     jack.attach("/var/run/jack-blender")
  45 except jack.UsageError:
  46     pass # continue using exist jack if script crashed but jack still online
  47
  48 def getFrames():
  49     global ret_blender_curr
  50     global ret_blender_next
  51     global ret_jack_current
  52
  53     currblenframe = Get("curframe")
  54     currjackframe = jack.get_current_transport_frame()
  55
  56     rate = jack.get_sample_rate()
  57
  58     fps = Scene.GetCurrent().getRenderingContext().fps
  59     fpsBase = Scene.GetCurrent().getRenderingContext().fpsBase
  60     factor = int(rate/(fps/fpsBase))
  61
  62     ret_blender_curr = currblenframe*factor
  63     ret_blender_next = currjackframe/factor
  64     ret_jack_current = currjackframe
  65
  66
  67 def refresh():
  68     global ret_blender_curr
  69     global ret_blender_next
  70     global ret_jack_current
  71     global prev_blen
  72     global prev_jack
  73
  74     getFrames()
  75
  76     #print "blender old", prev_blen
  77     #print "blender frame is", ret_blender_curr
  78     #print "jack old", prev_jack
  79     #print "jack frame is", ret_jack_current
  80
  81     if (prev_jack != ret_jack_current): #Jack changed, externally
  82         Set("curframe", ret_blender_next)
  83         #Window.Redraw(Window.Types.ACTION)
  84         Window.Redraw(Window.Types.BUTS)
  85         #Window.Redraw(Window.Types.IMAGE)
  86         #Window.Redraw(Window.Types.IMASEL)
  87         #Window.Redraw(Window.Types.INFO)
  88         Window.Redraw(Window.Types.SEQ)
  89         #Window.Redraw(Window.Types.TEXT)
  90         Window.Redraw(Window.Types.VIEW3D)
  91     elif (prev_blen != ret_blender_curr): #Blender changed, internally
  92         jack.transport_locate(ret_blender_curr)
  93         while jack.get_current_transport_frame() != ret_blender_curr:
  94             time.sleep(0.01) # waiting till pyjack applyed transport
  95
  96     id = Window.GetAreaID()
  97     Window.QAdd(id, Draw.TIMER3, 0, 1)
  98
  99     prev_blen = ret_blender_curr
 100     prev_jack = ret_jack_current
 101
 102 def event (evt, dummy):
 103     if evt == Draw.TIMER3:
 104         refresh()
 105         time.sleep(0.001)
 106
 107 def button_event (evt):
 108     global play_button
 109
 110     currentJackFrame = jack.get_current_transport_frame()
 111
 112     if evt == BEV_PLAY: #play/pause
 113         if play_button.val == 1:
 114             jack.transport_start()
 115         else:
 116             jack.transport_stop()
 117
 118     elif evt == BEV_START: #back to 0
 119         jack.transport_locate(0)
 120
 121     elif evt == BEV_PREV: #go back
 122         nextJackFrame = currentJackFrame - 200000
 123         if (nextJackFrame < 0): nextJackFrame = 0
 124         jack.transport_locate(nextJackFrame)
 125
 126     elif evt == BEV_NEXT: #go forward
 127         nextJackFrame = currentJackFrame + 200000
 128         jack.transport_locate(nextJackFrame)
 129
 130     elif evt == BEV_EXIT: #quit script
 131         jack.detach()
 132         Draw.Exit()
 133
 134 def gui ():
 135     global play_button
 136     BGL.glClearColor(*map(lambda x: x/255.0, Window.Theme.Get()[0].get('buts').back))
 137     BGL.glClear(BGL.GL_COLOR_BUFFER_BIT)
 138     Draw.BeginAlign()
 139
 140     if jack.get_transport_state() == jack.TransportStopped:
 141         play_button.val = 0
 142         button_text = "play"
 143     else:
 144         play_button.val = 1
 145         button_text = "pause"
 146
 147     Draw.PushButton("s", BEV_START, 1, 1, 20, 20, "Go to 0")
 148     Draw.PushButton("<", BEV_PREV, 20, 1, 20, 20, "Go back")
 149     Draw.PushButton(">", BEV_NEXT, 40, 1, 20, 20, "Go forward")
 150     play_button = Draw.Toggle(button_text, BEV_PLAY, 60, 1, 75, 20, play_button.val, "Play / Pause")
 151     Draw.PushButton("x", BEV_EXIT, 135, 1, 25, 20, "Exit from script")
 152     Draw.EndAlign()
 153
 154
 155 Draw.Register(gui, event, button_event)
 156
 157 refresh()