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perf(sports): reuse an unchanged scroll strip at the start of a turn (#719)

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A scoreboard in scroll mode no longer redraws every card at the start of a recent/upcoming turn whose games have not changed (~1.4 s for seven football cards at 192x48 on a Pi 4, with the render thread waiting). SportsScrollDisplayManager keeps one display per slate (game type + leagues; up to 4 per game type, at most 6 MB per plugin of strips not on screen) and rewinds the strip it built last time when its games, rankings, config, panel size and date are unchanged and it is under 10 minutes old. First turns, changed slates, live strips and empty turns are drawn as before; get_scroll_display() still answers with the strip on screen.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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Chuck
2026-10-01 20:39:44 -04:00
committed by GitHub
co-authored by Claude Opus 5.5
parent 746dcfcadb
commit 0e78e06eb9
4 changed files with 1358 additions and 11 deletions
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src/common/README.md
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@@ -332,6 +332,10 @@ dynamic-duration helpers. List it before `BasePlugin`.
scoreboards share (Vegas items, dynamic duration, frame loop), paced through
`scroll_config`. Subclasses supply `prepare_scroll_content()` and set
`SCROLL_LEAGUE_KEYS`; see the module docstring for an example.
`prepare_and_display()` rewinds a recent or upcoming strip whose games,
rankings, config, panel size and date are unchanged instead of calling
`prepare_scroll_content()` again, with one display per slate (game type and
leagues).
### sports_shared