Paul Davis
51625b2474
git-svn-id: svn://localhost/ardour2/branches/3.0@4315 d708f5d6-7413-0410-9779-e7cbd77b26cf
129 lines
3.4 KiB
Ruby
129 lines
3.4 KiB
Ruby
#! /usr/bin/ruby
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# Copyright (C) 2006,2007 John Anderson
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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require 'mackie'
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buttons = {}
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pots = {}
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while !File.exist? ARGV[0]
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sleep 0.010
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end
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file = File.open( ARGV[0], 'r+' )
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#mck = Mackie.new( file )
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device = false
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# respond to control movements
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while bytes = file.read( 3 )
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puts "received: %02.x %02.x %02.x" % [ bytes[0], bytes[1], bytes[2] ]
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output = nil
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case bytes[0] & 0b11110000
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when 0xe0
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# fader moved, so respond if move is OK
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output = bytes
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when 0x90
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# button pressed
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case bytes[1]
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when 0x68..0x6f
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# do nothing - touch detection
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puts "touch detect: %02.x" % bytes[2]
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else
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# treat all buttons as toggles
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button_id = bytes[1]
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# only toggle on release. Not working. All buttons send press
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# and then release signals
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if bytes[2] == 0
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if buttons.include?( button_id )
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# toggle button state
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puts "button id #{buttons[button_id]} to #{!buttons[button_id]}"
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buttons[button_id] = !buttons[button_id]
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else
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# create a new button as on
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puts "adding button id #{button_id}"
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buttons[button_id] = true
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end
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bytes[2] = buttons[button_id] ? 0x7f : 0
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output = bytes
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end
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end
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when 0xb0
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# pots, jog wheel, external
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case bytes[1]
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when 0x10..0x17
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#pot turned
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pot_id = bytes[1] & 0b00000111
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direction = bytes[2] & 0b01000000
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delta = bytes[2] & 0b00111111
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sign = direction == 0 ? 1 : -1
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if pots.include? pot_id
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current_led_pos = pots[pot_id]
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else
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current_led_pos = pots[pot_id] = 6
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end
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new_led_pos = current_led_pos + sign
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new_led_pos = case
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when new_led_pos <= 0
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0
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when new_led_pos >= 11
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11
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else
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new_led_pos
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end
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pots[pot_id] = new_led_pos
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puts "pot #{pot_id} turned #{sign} #{direction == 0 ? 'clockwise' : 'widdershins'}: %02.x to #{new_led_pos}" % delta
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output = bytes
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output[1] += 0x20
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output[2] = 0b01000000
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#~ modes:
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#~ 0 - single dot
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#~ 1 - boost/cut
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#~ 2 - wrap
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#~ 3 - spread
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mode = pot_id < 4 ? pot_id : 0
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output[2] |= ( mode << 4 )
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output[2] += ( new_led_pos ) & 0b00001111
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when 0x2e
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# external controller
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when 0x3c
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# jog wheel
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end
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else
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puts "don't know what this means"
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end
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# output bytes
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if device && output
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#sleep 0.1
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puts "sending: %02.x %02.x %02.x" % [ output[0], output[1], output[2] ]
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begin
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res = file.write output
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puts "res: #{res}"
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file.flush
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rescue => e
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puts "oops #{e}"
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file.close
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file = File.open ARGV[0], 'r+'
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end
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end
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end
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