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Fix MIDI pickup crossing detection never firing #3835

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Fix MIDI pickup crossing detection never firing #3835

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6 changes: 5 additions & 1 deletion src/audiomixerboard.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -95,7 +95,7 @@ static bool midiPickupShouldApply ( int midiValue, int currentValue, int toleran
// Handles the case where rapid movement causes MIDI values to "skip over" the software value
if ( recentMidiValues.size() >= 2 )
{
int prevMidi = recentMidiValues.back();
int prevMidi = recentMidiValues[recentMidiValues.size() - 2];
// Check if current and previous MIDI values bracket the software value
if ( ( prevMidi <= currentValue && midiValue >= currentValue ) || ( prevMidi >= currentValue && midiValue <= currentValue ) )
return true;
Expand All @@ -117,7 +117,11 @@ static bool midiPickupTryApply ( int midiValue, int currentValue, int tolerance,
tempPickup.push_back ( midiValue );

if ( !midiPickupShouldApply ( midiValue, currentValue, tolerance, tempPickup ) )
{
// keep this value: the next message needs it to detect a crossing
pickupBuffer = tempPickup;
return true; // Still waiting for pickup
}

// Picked up. Stop waiting
waitingForPickup = false;
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