LMMS / LMMS/lmms

Disable processing for muted instruments

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#767 5 comments 0 reactions 0 assignees View on GitHub

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enhancement performance
Dominant language
C++
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Description

as i understand in track.cpp 2051 toggleSolo is just muting all others, but i think that solo should disable processing of others, not just muting, because with high load there's no way to omit CPU overlapping.
so if only few instruments are in solo mode only their automation, fx and synth can work.
maybe to do fx work more clear, it's better to set fx.channel for each instrument with fx.enabled, so whole fx rack of instrument could be also disabled.
for muting i'd suggest a muteAllBtn and just unmute needed instruments

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Research direction

Start at track.cpp around line 2051 and trace how toggleSolo currently mutes other instruments. Determine where automation, effects, and synth processing are scheduled, and clarify how solo mode should disable that work while preserving the requested mute behavior. Done should mean that only soloed instruments process their automation, effects, and synths, with the behavior verified in the relevant existing tests or processing path.

Written by the indexing model from the issue text.

Assessment

Tech stack
cpp
Domain
desktop, performance
Issue type
Feature
Difficulty
5/5
Estimated time
Over a week
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
25/100

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