kode54
/
cog
2
1
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

Fix Standard MIDI processor for running SysEx sequences.

CQTexperiment
Christopher Snowhill 2017-10-05 12:50:25 -07:00
parent 12ca20484c
commit 614d57d37f
1 changed files with 35 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

37
Frameworks/midi_processing/midi_processing/midi_processor_standard_midi.cpp
View File

@ -34,6 +34,9 @@ bool midi_processor::process_standard_midi_track( std::vector<uint8_t>::const_it
midi_track track;
unsigned current_timestamp = 0;
unsigned char last_event_code = 0xFF;
unsigned last_sysex_length = 0;
unsigned last_sysex_timestamp = 0;
std::vector<uint8_t> buffer;
buffer.resize( 3 );
@ -62,6 +65,12 @@ bool midi_processor::process_standard_midi_track( std::vector<uint8_t>::const_it
}
if ( event_code < 0xF0 )
{
if ( last_sysex_length )
{
track.add_event( midi_event( last_sysex_timestamp, midi_event::extended, 0, &buffer[0], last_sysex_length + 1 ) );
last_sysex_length = 0;
}
last_event_code = event_code;
if ( !needs_end_marker && ( event_code & 0xF0 ) == 0xE0 ) continue;
if ( data_bytes_read < 1 )
@ -84,6 +93,12 @@ bool midi_processor::process_standard_midi_track( std::vector<uint8_t>::const_it
}
else if ( event_code == 0xF0 )
{
if ( last_sysex_length )
{
track.add_event( midi_event( last_sysex_timestamp, midi_event::extended, 0, &buffer[0], last_sysex_length + 1 ) );
last_sysex_length = 0;
}
int data_count = decode_delta( it, end );
if ( data_count < 0 ) return false; /*throw exception_io_data( "Invalid System Exclusive message" );*/
if ( end - it < data_count ) return false;
@ -91,11 +106,29 @@ bool midi_processor::process_standard_midi_track( std::vector<uint8_t>::const_it
buffer[ 0 ] = 0xF0;
std::copy( it, it + data_count, buffer.begin() + 1 );
it += data_count;
track.add_event( midi_event( current_timestamp, midi_event::extended, 0, &buffer[0], data_count + 1 ) );
last_sysex_length = data_count + 1;
last_sysex_timestamp = current_timestamp;
}
else if ( event_code == 0xF7 ) // SysEx continuation
{
if ( !last_sysex_length ) return false;
int data_count = decode_delta( it, end );
if ( data_count < 0 ) return false;
if ( end - it < data_count ) return false;
buffer.resize( last_sysex_length + data_count + 1 );
std::copy( it, it + data_count, buffer.begin() + last_sysex_length );
it += data_count;
last_sysex_length += data_count;
}
else if ( event_code == 0xFF )
{
if ( it == end ) return false;
if ( last_sysex_length )
{
track.add_event( midi_event( last_sysex_timestamp, midi_event::extended, 0, &buffer[0], last_sysex_length + 1 ) );
last_sysex_length = 0;
}
if ( it == end ) return false;
unsigned char meta_type = *it++;
int data_count = decode_delta( it, end );
if ( data_count < 0 ) return false; /*throw exception_io_data( "Invalid meta message" );*/