#include <sequencer.h>
Inheritance diagram for jdkmidi::MIDISequencerTrackState:
Public Member Functions | |
| MIDISequencerTrackState (MIDISequencer *seq_, int trk, MIDISequencerGUIEventNotifier *n) | |
| virtual | ~MIDISequencerTrackState () |
| virtual void | GoToZero () |
| virtual void | Reset () |
| virtual bool | Process (MIDITimedBigMessage *msg) |
Public Attributes | |
| float | tempobpm |
| int | pg |
| int | volume |
| int | timesig_numerator |
| int | timesig_denominator |
| int | bender_value |
| char | track_name [256] |
| bool | got_good_track_name |
| bool | notes_are_on |
| MIDIMatrix | note_matrix |
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Definition at line 307 of file jdkmidi_sequencer.cpp. References track_name.
00312 : 00313 MIDISequencerTrackNotifier( seq_, trk, n ), 00314 tempobpm( 120.0 ), 00315 volume(100), 00316 timesig_numerator(4), 00317 timesig_denominator(4), 00318 bender_value(0), 00319 got_good_track_name(false), 00320 notes_are_on(false), 00321 note_matrix() 00322 { 00323 *track_name = 0; 00324 } |
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Definition at line 327 of file jdkmidi_sequencer.cpp.
00328 {
00329 }
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Definition at line 331 of file jdkmidi_sequencer.cpp. References bender_value, jdkmidi::MIDIMatrix::Clear(), note_matrix, tempobpm, timesig_denominator, and timesig_numerator.
00332 {
00333 tempobpm = 120.0;
00334 timesig_numerator=4;
00335 timesig_denominator=4;
00336 bender_value=0;
00337 note_matrix.Clear();
00338 }
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Implements jdkmidi::MIDIProcessor. Definition at line 354 of file jdkmidi_sequencer.cpp. References bender_value, jdkmidi::C_MAIN_VOLUME, jdkmidi::FixQuotes(), jdkmidi::MIDIMessage::GetBenderValue(), jdkmidi::MIDISystemExclusive::GetBuf(), jdkmidi::MIDIMessage::GetController(), jdkmidi::MIDIMessage::GetControllerValue(), jdkmidi::MIDISystemExclusive::GetLength(), jdkmidi::MIDIMessage::GetMetaType(), jdkmidi::MIDIMessage::GetPGValue(), jdkmidi::MIDIBigMessage::GetSysEx(), jdkmidi::MIDIMessage::GetTempo32(), jdkmidi::MIDITimedBigMessage::GetTime(), jdkmidi::MIDIMessage::GetTimeSigDenominator(), jdkmidi::MIDIMessage::GetTimeSigNumerator(), jdkmidi::MIDIMatrix::GetTotalCount(), jdkmidi::MIDIMessage::GetType(), got_good_track_name, jdkmidi::MIDIMessage::IsChannelMsg(), jdkmidi::MIDIMessage::IsControlChange(), jdkmidi::MIDIMessage::IsMetaEvent(), jdkmidi::MIDIMessage::IsNoOp(), jdkmidi::MIDIMessage::IsProgramChange(), jdkmidi::MIDIMessage::IsTempo(), jdkmidi::META_GENERIC_TEXT, jdkmidi::META_INSTRUMENT_NAME, jdkmidi::META_TIMESIG, jdkmidi::META_TRACK_NAME, note_matrix, notes_are_on, jdkmidi::MIDISequencerTrackNotifier::Notify(), jdkmidi::MIDISequencerTrackNotifier::NotifyConductor(), pg, jdkmidi::PITCH_BEND, jdkmidi::MIDIMatrix::Process(), tempobpm, timesig_denominator, timesig_numerator, track_name, and volume.
00355 {
00356 // is the event a NoOp?
00357
00358 if( msg->IsNoOp() )
00359 {
00360 // yes, ignore event.
00361
00362 return false;
00363 }
00364
00365 // is it a normal MIDI channel message?
00366 if( msg->IsChannelMsg() )
00367 {
00368
00369 if( msg->GetType()==PITCH_BEND ) // is it a bender event?
00370 {
00371 // yes
00372 // remember the bender wheel value
00373
00374 bender_value = msg->GetBenderValue();
00375 }
00376 else if( msg->IsControlChange() ) // is it a control change event?
00377 {
00378 // yes
00379
00380 // is it a volume change event?
00381
00382 if( msg->GetController()==C_MAIN_VOLUME )
00383 {
00384 // yes, store the current volume level
00385 volume = msg->GetControllerValue();
00386
00387 Notify(
00388 MIDISequencerGUIEvent::GROUP_TRACK_VOLUME
00389 );
00390 }
00391 }
00392 else if( msg->IsProgramChange() ) // is it a program change event?
00393 {
00394 // yes
00395
00396 // update the current program change value
00397 pg = msg->GetPGValue();
00398
00399 Notify(
00400 MIDISequencerGUIEvent::GROUP_TRACK_PG
00401 );
00402 }
00403
00404 }
00405 else
00406 {
00407 // event is not a channel message. is it a meta-event?
00408 if( msg->IsMetaEvent() )
00409 {
00410 // yes, is it a tempo event
00411 if( msg->IsTempo() )
00412 {
00413 // yes get the current tempo
00414
00415 tempobpm = ((float)msg->GetTempo32())*(1.0f/32.0f);
00416 if(tempobpm<1 )
00417 {
00418 tempobpm=120.0;
00419 }
00420
00421 NotifyConductor(
00422 MIDISequencerGUIEvent::GROUP_CONDUCTOR_TEMPO
00423 );
00424 }
00425 else // is it a time signature event?
00426 if( msg->GetMetaType()==META_TIMESIG )
00427 {
00428 // yes, extract the current numerator and denominator
00429
00430 timesig_numerator = msg->GetTimeSigNumerator();
00431 timesig_denominator = msg->GetTimeSigDenominator();
00432
00433 NotifyConductor(
00434 MIDISequencerGUIEvent::GROUP_CONDUCTOR_TIMESIG
00435 );
00436
00437 }
00438 else // is it a track name event?
00439 if( ( msg->GetMetaType()==META_TRACK_NAME
00440 || msg->GetMetaType()==META_INSTRUMENT_NAME
00441 || (!got_good_track_name && msg->GetMetaType()==META_GENERIC_TEXT && msg->GetTime()==0)
00442 )
00443 &&
00444 msg->GetSysEx() )
00445 {
00446 got_good_track_name = true;
00447
00448 // yes, copy the track name
00449 int len = msg->GetSysEx()->GetLength();
00450
00451 if( len>(int)sizeof(track_name)-1 )
00452 len=(int)sizeof(track_name)-1;
00453
00454 memcpy(track_name, msg->GetSysEx()->GetBuf(), len );
00455
00456 track_name[len]='\0';
00457
00458 FixQuotes( track_name );
00459
00460 Notify(
00461 MIDISequencerGUIEvent::GROUP_TRACK_NAME
00462 );
00463
00464 }
00465
00466 }
00467
00468 }
00469
00470 // pass the message to our note matrix to keep track of all notes on
00471 // on this track
00472
00473 if( note_matrix.Process( *msg ) )
00474 {
00475 // did the "any notes on" status change?
00476
00477 if( ( notes_are_on && note_matrix.GetTotalCount()==0)
00478 || (!notes_are_on && note_matrix.GetTotalCount()>0 ) )
00479 {
00480 // yes, toggle our notes_are_on flag
00481 notes_are_on = !notes_are_on;
00482
00483 // and notify the gui about the activity on this track
00484 Notify(
00485 MIDISequencerGUIEvent::GROUP_TRACK_NOTE
00486 );
00487 }
00488 }
00489
00490
00491 return true;
00492 }
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Definition at line 340 of file jdkmidi_sequencer.cpp. References bender_value, jdkmidi::MIDIMatrix::Clear(), got_good_track_name, note_matrix, notes_are_on, tempobpm, timesig_denominator, timesig_numerator, track_name, and volume.
00341 {
00342 tempobpm = 120.0;
00343 volume=100;
00344 notes_are_on=false;
00345 timesig_numerator=4;
00346 timesig_denominator=4;
00347 bender_value=0;
00348 *track_name=0;
00349 note_matrix.Clear();
00350 got_good_track_name=false;
00351 }
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Definition at line 236 of file sequencer.h. |
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Definition at line 238 of file sequencer.h. |
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Definition at line 241 of file sequencer.h. |
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Definition at line 240 of file sequencer.h. |
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Definition at line 232 of file sequencer.h. |
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Definition at line 231 of file sequencer.h. |
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Definition at line 235 of file sequencer.h. |
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Definition at line 234 of file sequencer.h. |
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Definition at line 237 of file sequencer.h. |
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Definition at line 233 of file sequencer.h. |