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feat(tracker): rework the MIDI input and note event handling

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This commit is contained in:
5684185+vsariola@users.noreply.github.com
2025-06-03 20:03:22 +03:00
parent 7ef868a434
commit 283fbc1171
19 changed files with 428 additions and 500 deletions
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28
tracker/table.go
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@ -2,6 +2,7 @@ package tracker
import (
"math"
"time"
"github.com/vsariola/sointu"
"gopkg.in/yaml.v3"
@ -437,7 +438,7 @@ func (v *Notes) MoveCursor(dx, dy int) (ok bool) {
}
func (v *Notes) clear(p Point) {
v.SetValue(p, 1)
v.Input(1)
}
func (v *Notes) set(p Point, value int) {
@ -586,7 +587,12 @@ func (m *Notes) SetValue(p Point, val byte) {
(*track).SetNote(pos, val, m.uniquePatterns)
}
func (v *Notes) FillNibble(value byte, lowNibble bool) {
func (v *Notes) Input(note byte) NoteEvent {
v.Table().Fill(int(note))
return v.finishInput(note)
}
func (v *Notes) InputNibble(nibble byte) NoteEvent {
defer v.change("FillNibble", MajorChange)()
rect := Table{v}.Range()
for y := rect.TopLeft.Y; y <= rect.BottomRight.Y; y++ {
@ -595,12 +601,24 @@ func (v *Notes) FillNibble(value byte, lowNibble bool) {
if val == 1 {
val = 0 // treat hold also as 0
}
if lowNibble {
val = (val & 0xf0) | byte(value&15)
if v.d.LowNibble {
val = (val & 0xf0) | byte(nibble&15)
} else {
val = (val & 0x0f) | byte((value&15)<<4)
val = (val & 0x0f) | byte((nibble&15)<<4)
}
v.SetValue(Point{x, y}, val)
}
}
return v.finishInput(v.Value(v.Cursor()))
}
func (v *Notes) finishInput(note byte) NoteEvent {
if step := v.d.Step; step > 0 {
v.Table().MoveCursor(0, step)
v.Table().SetCursor2(v.Table().Cursor())
}
TrySend(v.broker.ToGUI, any(MsgToGUI{Kind: GUIMessageEnsureCursorVisible, Param: v.Table().Cursor().Y}))
track := v.Cursor().X
ts := time.Now().UnixMilli() * 441 / 10 // convert to 44100Hz frames
return NoteEvent{IsTrack: true, Channel: track, Note: note, On: true, Timestamp: ts}
}