Fix assorted bugs and get this shit workingggg...except maybe being off-key :x

src/reskit/soundtrack/engines/echo.rs

@@ -293,7 +293,7 @@ fn apply_effects_to_channel( channel: &mut Channel, effects: &LinkedHashSet<Effe
 
                 // Add new note cut. Being an effect requiring delay generation, it will generate (and expire) in get_delays
                 channel.active_effects.insert( Effect::NoteCut { after_ticks } );
-            }
+            },
             Effect::SetPanning { left, right } => {
                 let left = *left;
                 let right = *right;
@@ -332,25 +332,11 @@ fn apply_effects_to_channel( channel: &mut Channel, effects: &LinkedHashSet<Effe
     Ok( events )
 }
 
-/**
- * Replace concurrent sequences of waits with single larger waits. This reduces the ESF stream size.
- */
-pub fn compact_delays( events: Vec<EchoEvent> ) -> Result<Vec<EchoEvent>, Box<dyn Error>> {
+fn sequence_to_compacted_delay( current_sequence: &Vec<EchoEvent> ) -> Result<Vec<EchoEvent>, Box<dyn Error>> {
     let mut new_events: Vec<EchoEvent> = Vec::new();
 
-    let mut current_sequence: Vec<EchoEvent> = Vec::new();
-    for event in events {
-        if let Some( esf_event_type ) = event.iter().next() {
-            if *esf_event_type & 0xF0 == ESF_DELAY_SHORT || *esf_event_type == ESF_DELAY_LONG {
-                // Continue to push delay events into current_sequence
-                current_sequence.push( event );
-            } else {
-                // Encountered a non-delay event - we will always push something here,
-                // but let's check first if we need to push a current_sequence of waits.
-                // Coalesce all current delays in current_sequence and push them
-                // onto the new event stream.
     let mut cumulative_delay: u16 = 0;
-                for delay_event in &current_sequence {
+    for delay_event in current_sequence {
         let mut iter = delay_event.iter();
         let delay_type = *iter.next().ok_or( "internal error: empty event" )?;
 
@@ -369,8 +355,27 @@ pub fn compact_delays( events: Vec<EchoEvent> ) -> Result<Vec<EchoEvent>, Box<dy
 
         // Push the remainder under 256 event
         new_events.push( get_delay( ( cumulative_delay % 256 ) as u8 )? );
+    }
 
-                    // Reset the current sequence
+    Ok( new_events )
+}
+
+/**
+ * Replace concurrent sequences of waits with single larger waits. This reduces the ESF stream size.
+ */
+pub fn compact_delays( events: Vec<EchoEvent> ) -> Result<Vec<EchoEvent>, Box<dyn Error>> {
+    let mut new_events: Vec<EchoEvent> = Vec::new();
+
+    let mut current_sequence: Vec<EchoEvent> = Vec::new();
+    for event in events {
+        if let Some( esf_event_type ) = event.iter().next() {
+            if *esf_event_type & 0xF0 == ESF_DELAY_SHORT || *esf_event_type == ESF_DELAY_LONG {
+                // Continue to push delay events into current_sequence
+                current_sequence.push( event );
+            } else {
+                let compacted_delay = sequence_to_compacted_delay( &current_sequence )?;
+                if !compacted_delay.is_empty() {
+                    new_events.extend( compacted_delay.into_iter() );
                     current_sequence.clear();
                 }
 
@@ -379,6 +384,8 @@ pub fn compact_delays( events: Vec<EchoEvent> ) -> Result<Vec<EchoEvent>, Box<dy
         }
     }
 
+    new_events.extend( sequence_to_compacted_delay( &current_sequence )?.into_iter() );
+
     Ok( new_events )
 }
 
@@ -454,6 +461,12 @@ fn get_note_cut( channel: &mut Channel, note_cut_effect: &Effect, tick: u8 ) ->
     if tick >= after_ticks {
         if channel.active_note.is_some() {
             channel.active_note = None;
+            // Consume the note cut after we are done with it - it does not remain active
+            channel.active_effects = channel.active_effects
+                                            .clone()
+                                            .into_iter()
+                                            .filter( | effect | !( matches!( effect, Effect::NoteCut { after_ticks: _ } ) ) )
+                                            .collect();
             return Ok( vec![ ESF_NOTE_OFF | channel.id ] );
         }
     }

src/reskit/soundtrack/formats/dmf.rs

@@ -952,6 +952,8 @@ impl EchoFormat for DmfModule {
             esf.extend( event );
         }
 
+        esf.push( 0xFF );   // Terminate the stream
+
         Ok( esf )
     }