light9 Changeset - c7478a778992

Changeset - c7478a778992

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Drew Perttula - 18 years ago 2007-06-10 07:41:48
drewp@bigasterisk.com

junky first pass at bcf2000 for keyboardcomposer

2 files changed with 138 insertions and 1 deletions:

bcf2000.py

116

bin/keyboardcomposer

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bcf2000.py

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@@ new file 100644 @@
 #!/usr/bin/python
 from __future__ import division
 import math
 import twisted.internet.fdesc
 from twisted.internet import reactor
 from twisted.internet.task import LoopingCall
 class BCF2000(object):
     control = {81 : "slider1", 82 : "slider2", 83 : "slider3", 84 : "slider4",
 : "slider5", 86 : "slider6", 87 : "slider7", 88 : "slider8",
 : "knob1",  2 : "knob2",  3 : "knob3",  4 : "knob4",
 : "knob5",  6 : "knob6",  7 : "knob7",  8 : "knob8",
 : "button-knob1", 34 : "button-knob2",
 : "button-knob3", 36 : "button-knob4",
 : "button-knob5", 38 : "button-knob6",
 : "button-knob7", 40 : "button-knob8",
 : "button-upper1",  66 : "button-upper2",
 : "button-upper3",  68 : "button-upper4",
 : "button-upper5",  70 : "button-upper6",
 : "button-upper7",  72 : "button-upper8",
 : "button-lower1",  74 : "button-lower2",
 : "button-lower3",  76 : "button-lower4",
 : "button-lower5",  78 : "button-lower6",
 : "button-lower7",  80 : "button-lower8",
 : "button-corner1", 90 : "button-corner2",
 : "button-corner3", 92 : "button-corner4",
+               }
     def __init__(self, dev="/dev/snd/midiC1D0"):
         self.devPath = dev
         self.dev = None
         self.reopen()
         self.lastValue = {} # control name : value
         self.packet = ""
         loop = LoopingCall(self.poll)
         loop.start(.02)
     def poll(self):
         try:
             bytes = self.dev.read(3)
         except IOError, e:
             return
         if len(bytes) == 0:
             print "midi stall, reopen slider device"
             self.reopen()
             return
         self.packet += bytes
         if len(self.packet) == 3:
             p = self.packet
             self.packet = ""
             self.packetReceived(p)
         return
         while 1:
             packet = self.dev.read(3)
             while len(packet) < 3:
                 if len(packet) == 0:
                     self.reopen()
                 packet += self.dev.read(3 - len(packet))
     def packetReceived(self, packet):
         b0, which, value = [ord(b) for b in packet]
         if b0 != 0xb0:
             return
         if which in self.control:
             name = self.control[which]
             if name.startswith("button-"):
                 value = value > 0
             self.lastValue[name] = value
             self.valueIn(name, value)
         else:
             print "unknown control %s to %s" % (which, value)
     def reopen(self):
         if self.dev is not None:
             try:
                 self.dev.close()
             except IOError:
                 pass
         self.dev = open(self.devPath, "r+")
         twisted.internet.fdesc.setNonBlocking(self.dev)
     def valueIn(self, name, value):
         """override this with your handler for when events come in
         from the hardware"""
         print "slider %s to %s" % (name, value)
         if name == 'slider1':
             for x in range(2,8+1):
                 v2 = int(64 + 64 * math.sin(x / 3 + value / 10))
                 self.valueOut('slider%d' % x, v2)
             for x in range(1,8+1):
                 self.valueOut('button-upper%s' % x, value > x*15)
                 self.valueOut('button-lower%s' % x, value > (x*15+7))
     def valueOut(self, name, value):
         """call this to send an event to the hardware"""
         value = int(value)
         if self.lastValue.get(name) == value:
             return
         self.lastValue[name] = value
         which = [k for k,v in self.control.items() if v == name]
         assert len(which) == 1, "unknown control name %r" % name
         if isinstance(value, bool):
             value = value * 127
         self.dev.write(chr(0xb0) + chr(which[0]) + chr(int(value)))
 if __name__ == '__main__':
     b = BCF2000()
     reactor.run()

bin/keyboardcomposer

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@@ @@ -16,6 +16,7 @@ from light9.Submaster import Submasters, @@
 from light9.subclient import SubClient
 from light9 import dmxclient, showconfig, networking
 from light9.uihelpers import toplevelat, bindkeys
 from bcf2000 import BCF2000
 nudge_keys = {
     'up' : list('qwertyuiop'),
@@ @@ -106,6 +107,9 @@ class KeyboardComposer(Frame, SubClient) @@
         self.sub_name = Entry(self.buttonframe, bg='black', fg='white')
         self.sub_name.pack(side=LEFT)
         self.stop_frequent_update_time = 0
         self.sliders = Sliders(self.hw_slider_moved)
     def make_key_hints(self):
         keyhintrow = Frame(self)
@@ @@ -171,6 +175,11 @@ class KeyboardComposer(Frame, SubClient) @@
                 subtk.scale.fade(0)
             else:
                 subtk.scale.decrease()
     def hw_slider_moved(self, col, value):
         subtk = self.slider_table[(self.current_row, col)]
         subtk.scale.set(value)
     def draw_sliders(self):
         self.tk_focusFollowsMouse()
@@ @@ -187,9 +196,12 @@ class KeyboardComposer(Frame, SubClient) @@
             col += 1
             col %= 10
             def slider_changed(x, y, z, subtk=subtk):
+            def slider_changed(x, y, z, subtk=subtk, col=col, sub=sub):
                 subtk.scale.draw_indicator_colors()
                 self.send_levels()
                 v = 127 * self.get_levels()[sub.name]
                 self.sliders.valueOut("slider%s" % (col), v)
             subtk.slider_var.trace('w', slider_changed)
     def make_row(self):
@@ @@ -265,6 +277,15 @@ class LevelServer(xmlrpc.XMLRPC): @@
             ret=str(e)
         return ret
 class Sliders(BCF2000):
     def __init__(self, cb):
         BCF2000.__init__(self)
         self.cb = cb
     def valueIn(self, name, value):
         print "in", name, value
         if name.startswith("slider"):
             self.cb(int(name[6:]) - 1, value / 127)
 if __name__ == "__main__":
     parser = OptionParser()
     parser.add_option('--nonpersistent', action="store_true",

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