2 Copyright (C) 2006,2007 John Anderson
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 2 of the License, or
7 (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, write to the Free Software
16 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
18 #include "mackie_midi_builder.h"
26 #include "midi_byte_array.h"
27 #include "mackie_port.h"
29 using namespace Mackie;
32 MIDI::byte MackieMidiBuilder::calculate_pot_value( midi_pot_mode mode, const ControlState & state )
34 // TODO do an exact calc for 0.50? To allow manually re-centering the port.
37 MIDI::byte retval = ( state.pos > 0.45 && state.pos < 0.55 ? 1 : 0 ) << 6;
40 retval |= ( mode << 4 );
42 // value, but only if off hasn't explicitly been set
43 if ( state.led_state != off )
44 retval += ( int(state.pos * 10.0) + 1 ) & 0x0f; // 0b00001111
49 MidiByteArray MackieMidiBuilder::build_led_ring( const Pot & pot, const ControlState & state, midi_pot_mode mode )
51 return build_led_ring( pot.led_ring(), state, mode );
54 MidiByteArray MackieMidiBuilder::build_led_ring( const LedRing & led_ring, const ControlState & state, midi_pot_mode mode )
56 // The other way of doing this:
57 // 0x30 + pot/ring number (0-7)
58 //, 0x30 + led_ring.ordinal() - 1
59 return MidiByteArray ( 3
63 , 0x20 + led_ring.raw_id()
65 , calculate_pot_value( mode, state )
69 MidiByteArray MackieMidiBuilder::build_led( const Button & button, LedState ls )
71 return build_led( button.led(), ls );
74 MidiByteArray MackieMidiBuilder::build_led( const Led & led, LedState ls )
79 case LedState::on: state = 0x7f; break;
80 case LedState::off: state = 0x00; break;
81 case LedState::none: state = 0x00; break; // actually, this should never happen.
82 case LedState::flashing: state = 0x01; break;
85 return MidiByteArray ( 3
92 MidiByteArray MackieMidiBuilder::build_fader( const Fader & fader, float pos )
94 int posi = int( 0x3fff * pos );
96 return MidiByteArray ( 3
97 , midi_fader_id | fader.raw_id()
105 MidiByteArray MackieMidiBuilder::zero_strip( SurfacePort & port, const Strip & strip )
107 Group::Controls::const_iterator it = strip.controls().begin();
108 MidiByteArray retval;
109 for (; it != strip.controls().end(); ++it )
111 Control & control = **it;
112 if ( control.accepts_feedback() )
113 retval << zero_control( control );
116 // These must have sysex headers
117 retval << strip_display_blank( port, strip, 0 );
118 retval << strip_display_blank( port, strip, 1 );
122 MidiByteArray MackieMidiBuilder::zero_control( const Control & control )
124 switch( control.type() )
126 case Control::type_button:
127 return build_led( (Button&)control, off );
129 case Control::type_led:
130 return build_led( (Led&)control, off );
132 case Control::type_fader:
133 return build_fader( (Fader&)control, 0.0 );
135 case Control::type_pot:
136 return build_led_ring( dynamic_cast<const Pot&>( control ), off );
138 case Control::type_led_ring:
139 return build_led_ring( dynamic_cast<const LedRing&>( control ), off );
143 os << "Unknown control type " << control << " in Strip::zero_control";
144 throw MackieControlException( os.str() );
148 char translate_seven_segment( char achar )
150 achar = toupper( achar );
151 if ( achar >= 0x40 && achar <= 0x60 )
153 else if ( achar >= 0x21 && achar <= 0x3f )
159 MidiByteArray MackieMidiBuilder::two_char_display( const std::string & msg, const std::string & dots )
161 if ( msg.length() != 2 ) throw MackieControlException( "MackieMidiBuilder::two_char_display: msg must be exactly 2 characters" );
162 if ( dots.length() != 2 ) throw MackieControlException( "MackieMidiBuilder::two_char_display: dots must be exactly 2 characters" );
164 MidiByteArray bytes( 5, 0xb0, 0x4a, 0x00, 0x4b, 0x00 );
166 // chars are understood by the surface in right-to-left order
167 // could also exchange the 0x4a and 0x4b, above
168 bytes[4] = translate_seven_segment( msg[0] ) + ( dots[0] == '.' ? 0x40 : 0x00 );
169 bytes[2] = translate_seven_segment( msg[1] ) + ( dots[1] == '.' ? 0x40 : 0x00 );
174 MidiByteArray MackieMidiBuilder::two_char_display (unsigned int value, const std::string & /*dots*/)
177 os << setfill('0') << setw(2) << value % 100;
178 return two_char_display( os.str() );
181 MidiByteArray MackieMidiBuilder::strip_display_blank( SurfacePort & port, const Strip & strip, unsigned int line_number )
183 // 6 spaces, not 7 because strip_display adds a space where appropriate
184 return strip_display( port, strip, line_number, " " );
187 MidiByteArray MackieMidiBuilder::strip_display( SurfacePort & port, const Strip & strip, unsigned int line_number, const std::string & line )
189 if ( line_number > 1 )
191 throw runtime_error( "line_number must be 0 or 1" );
194 if ( strip.index() > 7 )
196 throw runtime_error( "strip.index() must be between 0 and 7" );
200 cout << "MackieMidiBuilder::strip_display index: " << strip.index() << ", line " << line_number << ": " << line << endl;
203 MidiByteArray retval;
206 retval << port.sysex_hdr();
210 // offset (0 to 0x37 first line, 0x38 to 0x6f for second line )
211 retval << ( strip.index() * 7 + ( line_number * 0x38 ) );
213 // ascii data to display
215 // pad with " " out to 6 chars
216 for ( int i = line.length(); i < 6; ++i ) retval << ' ';
218 // column spacer, unless it's the right-hand column
219 if ( strip.index() < 7 ) retval << ' ';
225 cout << "MackieMidiBuilder::strip_display midi: " << retval << endl;
230 MidiByteArray MackieMidiBuilder::all_strips_display (SurfacePort & /*port*/, std::vector<std::string> & /*lines1*/, std::vector<std::string> & /*lines2*/)
232 MidiByteArray retval;
234 // NOTE remember max 112 bytes per message, including sysex headers
235 retval << "Not working yet";
239 MidiByteArray MackieMidiBuilder::timecode_display( SurfacePort & port, const std::string & timecode, const std::string & last_timecode )
241 // if there's no change, send nothing, not even sysex header
242 if ( timecode == last_timecode ) return MidiByteArray();
244 // length sanity checking
245 string local_timecode = timecode;
246 // truncate to 10 characters
247 if ( local_timecode.length() > 10 ) local_timecode = local_timecode.substr( 0, 10 );
248 // pad to 10 characters
249 while ( local_timecode.length() < 10 ) local_timecode += " ";
251 // find the suffix of local_timecode that differs from last_timecode
252 std::pair<string::const_iterator,string::iterator> pp = mismatch( last_timecode.begin(), last_timecode.end(), local_timecode.begin() );
254 MidiByteArray retval;
257 retval << port.sysex_hdr();
259 // code for timecode display
262 // translate characters. These are sent in reverse order of display
263 // hence the reverse iterators
264 string::reverse_iterator rend = reverse_iterator<string::iterator>( pp.second );
265 for ( string::reverse_iterator it = local_timecode.rbegin(); it != rend; ++it )
267 retval << translate_seven_segment( *it );