perf(tui): optimized extractCursorPosition to scan lines in reverse order#1004
Merged
badlogic merged 1 commit intobadlogic:mainfrom Jan 28, 2026
Merged
perf(tui): optimized extractCursorPosition to scan lines in reverse order#1004badlogic merged 1 commit intobadlogic:mainfrom
badlogic merged 1 commit intobadlogic:mainfrom
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…rder - Optimized extractCursorPosition to scan lines in reverse order for improved performance.
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Embarassing. Cheers! |
Owner
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This should also early out when above the visible viewport. |
Owner
Contributor
Author
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@badlogic shouldn't it be const viewportTop = Math.max(0, lines.length - height);
for (let row = lines.length - 1; row >= viewportTop; row--) { |
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Optimized extractCursorPosition to scan lines in reverse order for improved performance.
Turns out this is one of the slowest functions during a regular session.

Mostly because it scans from the head instead of the tail.