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fix(vegas): pause for STATIC plugins where their turn falls in the strip (#651)

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The static trigger peeked at the front of StreamManager's segment buffer,
which continuous scrolling (the default) never advances -- it extends the
strip with take_next_group() -- so the same first segment was examined on
every frame. A STATIC plugin paused the scroll only if it was first, once,
at startup; otherwise it scrolled past as ordinary content. Swap mode had
the same problem for any STATIC plugin not first in its cycle.

The render pipeline now records a marker (strip column, plugin id) for
each STATIC plugin where the strip is built -- composition and every
extension -- shifts the markers when the scrolled prefix is trimmed, and
clears them on reset. The coordinator pauses when the scroll reaches the
next marker: a tuple comparison per frame instead of a lock, a plugin
lookup and a get_vegas_display_mode() call. take_next_group() no longer
renders STATIC plugins' content. The pause calls display() under the
plugin lock and is timed with the monotonic clock.

Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
This commit is contained in:
Chuck
2026-09-28 10:39:14 -04:00
committed by GitHub
co-authored by Claude Opus 5.5
parent 224847cebc
commit 1e62677257
5 changed files with 438 additions and 29 deletions
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CHANGELOG.md
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@@ -19,6 +19,8 @@ accepts both, but the store flags the old spelling as deprecated
## Unreleased
- Vegas: a plugin set to `vegas_mode: "static"` pauses the scroll for its turn again. The pause was triggered by peeking at the front of a segment buffer that continuous scrolling (the default) never advances, so a static plugin paused only if it happened to be first, once, at startup, and otherwise scrolled past as ordinary content; swap mode had the same problem for any static plugin not first in its cycle. The render pipeline now marks where each static plugin's turn falls in the strip and the scroll pauses when it gets there. The pause runs the plugin's `display()` under its plugin lock, and a static plugin's content is no longer rendered for the strip.
- The display loop no longer spins at 100% CPU when no enabled mode has anything to show (for example, only a sports plugin enabled in its off-season). After one full rotation of empty modes it checks one mode per second until something shows; live content still takes over at once.
- Contributor tooling and docs: