Chuck and Claude Opus 5.5
c5281d9a45
feat(display): compensate for the panel's scan order while scrolling
...
A 1:N-scan HUB75 panel lights its rows in pairs, row d of the top half
with row d of the bottom half, d running 0..N-1 across each refresh. The
two rows either side of the middle of a panel are therefore lit at
opposite ends of every refresh, and a strip moving a whole pixel per
refresh shows a crisp 1px step across the middle of every panel -- in a
phone video as well as by eye.
Established on hdpi's panel (4x128x64, one chain, rotated 180) on
2026-09-24: interlaced scanning (scan_mode 1) made the step vanish, and
halving the scroll speed halved it. It is the scan order, not a torn
frame, and crisp vsync-locked pacing (#523 , #628 ) makes it visible where
uneven, blended motion used to hide it. Showing the upper half one
refresh behind removed it completely at full speed.
src/scan_order.py works out which rows lag how many refreshes from the
layout: walking the logical rows, wherever a row lit near the start of a
refresh follows one lit near the end, the section below takes one more
refresh of lag (one less the other way), so the result is a uniform lean
rather than a step. Stacked parallel chains lean further. It covers plain
and parallel chains at 0 or 180 degrees with standard multiplexing and
progressive scan; anything else (U-mapper, 90/270, multiplexing,
interlaced, double-sided) is left alone, as is the emulator, which has no
scan order.
DisplayManager applies it only mid-scroll at one frame per refresh, when
consecutive frames are consecutive refreshes: lagging rows come from the
previous input frames, so it works for Vegas and every plugin ticker
without knowing how they scroll. display.scan_order_compensation
("auto" | "off") controls it.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com >
2026-09-24 13:36:51 -04:00
..
2026-09-23 16:33:24 -04:00
2026-09-23 10:29:16 -04:00
2026-09-23 12:36:26 -04:00
2026-09-23 16:48:02 -04:00
2026-03-20 15:06:58 -04:00
2026-08-21 11:16:52 -04:00
2026-09-23 12:36:26 -04:00
2026-07-12 10:38:52 -04:00
2026-07-12 10:38:52 -04:00
2026-09-16 17:12:28 -04:00
2026-08-21 11:16:52 -04:00
2026-09-17 16:37:29 -04:00
2026-09-08 08:34:52 -04:00
2026-09-11 10:07:38 -04:00
2026-09-23 12:36:53 -04:00
2026-08-23 11:44:23 -04:00
2026-09-23 12:36:53 -04:00
2026-09-23 12:36:53 -04:00
2026-09-23 10:29:16 -04:00
2026-08-21 11:16:52 -04:00
2026-09-23 10:29:16 -04:00
2026-08-21 11:16:52 -04:00
2026-09-11 10:07:38 -04:00
2026-09-11 10:07:38 -04:00
2026-09-14 12:40:41 -04:00
2026-07-14 08:08:51 -04:00
2026-09-15 10:58:57 -04:00
2026-09-17 16:37:29 -04:00
2026-09-17 16:37:29 -04:00
2026-09-18 09:56:50 -04:00
2026-09-23 12:54:07 -04:00
2026-08-26 10:03:43 -04:00
2026-09-01 09:54:04 -04:00
2026-09-17 09:26:21 -04:00
2026-08-11 16:10:56 -04:00
2026-08-07 16:17:11 -04:00
2026-09-13 11:53:50 -04:00
2026-08-12 08:42:56 -04:00
2026-09-23 12:54:07 -04:00
2026-08-19 12:28:22 -04:00
2026-09-07 13:37:54 -04:00
2026-08-12 08:40:07 -04:00
2026-09-17 12:38:39 -04:00
2026-09-23 12:54:07 -04:00
2026-08-11 14:14:25 -04:00
2026-08-19 17:40:52 -04:00
2026-09-14 09:42:24 -04:00
2026-09-23 16:33:24 -04:00
2026-08-07 10:17:30 -04:00
2026-09-23 12:52:50 -04:00
2026-07-14 08:49:43 -04:00
2026-09-11 10:07:38 -04:00
2026-09-16 17:12:18 -04:00
2026-08-06 14:04:23 -04:00
2026-09-23 12:36:26 -04:00
2026-05-15 10:19:55 -04:00
2026-09-17 16:37:29 -04:00
2026-09-15 18:19:39 -04:00
2026-08-04 13:46:28 -04:00
2026-09-03 16:06:40 -04:00
2026-09-23 12:44:55 -04:00
2026-09-23 16:48:02 -04:00
2026-09-23 16:33:24 -04:00
2026-09-23 10:29:16 -04:00
2026-08-23 11:43:39 -04:00
2026-08-07 16:17:11 -04:00
2026-09-23 10:29:16 -04:00
2026-08-07 10:17:30 -04:00
2026-09-23 12:36:26 -04:00
2026-09-12 16:13:38 -04:00
2026-09-07 13:37:54 -04:00
2026-09-17 16:37:29 -04:00
2026-09-23 12:36:26 -04:00
2026-09-23 12:58:39 -04:00
2026-08-06 14:04:23 -04:00
2026-08-07 16:17:11 -04:00
2026-09-14 13:27:10 -04:00
2026-09-13 11:53:50 -04:00
2026-08-07 13:27:20 -04:00
2026-09-23 10:29:16 -04:00
2026-09-23 12:36:26 -04:00
2026-09-23 14:32:02 -04:00
2026-09-18 09:56:50 -04:00
2026-09-23 10:29:16 -04:00
2026-09-13 10:47:01 -04:00
2026-09-23 16:50:42 -04:00
2026-08-21 14:30:29 -04:00
2026-09-07 13:37:38 -04:00
2026-07-12 10:38:52 -04:00
2026-08-21 15:50:55 -04:00
2026-09-23 12:58:11 -04:00
2026-09-23 12:36:26 -04:00
2026-08-12 14:58:05 -04:00
2026-08-23 11:42:51 -04:00
2026-08-03 16:52:42 -04:00
2026-09-14 17:38:17 -04:00
2026-08-21 15:50:55 -04:00
2026-09-23 10:29:16 -04:00
2026-09-18 11:09:25 -04:00
2026-09-11 08:42:30 -04:00
2026-09-11 08:41:58 -04:00
2026-09-23 12:36:26 -04:00
2026-08-23 11:44:00 -04:00
2026-09-23 12:58:11 -04:00
2026-09-23 12:58:11 -04:00
2026-09-17 16:37:29 -04:00
2026-08-21 15:50:55 -04:00
2026-09-11 11:32:12 -04:00
2026-09-08 08:34:52 -04:00
2026-08-11 16:10:56 -04:00
2026-09-07 13:37:38 -04:00
2026-09-08 08:34:52 -04:00
2026-08-19 12:49:46 -04:00
2026-09-23 10:34:20 -04:00
2026-09-11 15:32:03 -04:00
2026-09-23 12:36:53 -04:00
2026-09-16 17:12:18 -04:00
2026-09-15 19:17:48 -04:00
2026-08-17 15:35:02 -04:00
2026-09-08 08:34:52 -04:00
2026-09-02 09:51:27 -04:00
2026-09-17 16:37:29 -04:00
2026-08-21 16:19:33 -04:00
2026-09-11 08:41:58 -04:00
2026-08-19 12:28:22 -04:00
2026-07-11 08:55:50 -04:00
2026-05-15 10:19:55 -04:00
2026-08-23 11:43:39 -04:00
2026-07-09 07:54:18 -04:00
2026-09-23 12:36:26 -04:00
2026-09-17 16:37:29 -04:00
2026-09-23 12:36:26 -04:00
2026-09-23 12:36:26 -04:00
2026-09-15 18:19:39 -04:00
2026-09-15 18:19:39 -04:00
2026-08-07 13:02:59 -04:00
2026-08-21 15:50:55 -04:00
2026-09-23 16:33:24 -04:00
2026-09-17 16:37:29 -04:00
2026-08-07 16:17:11 -04:00
2026-09-24 13:36:51 -04:00
2026-08-21 16:22:48 -04:00
2026-08-07 10:17:30 -04:00
2026-05-15 10:19:55 -04:00
2026-09-07 13:37:54 -04:00
2026-07-31 09:40:38 -04:00
2026-09-17 16:37:29 -04:00
2026-09-17 16:37:29 -04:00
2026-07-13 09:28:30 -04:00
2026-09-14 12:48:36 -04:00
2026-09-13 11:53:50 -04:00
2026-09-15 15:32:21 -04:00
2026-09-17 16:37:29 -04:00
2026-09-20 18:25:33 -04:00
2026-08-26 11:25:10 -04:00
2026-09-23 16:33:12 -04:00
2026-09-11 10:07:38 -04:00
2026-08-07 16:17:11 -04:00
2026-09-23 12:36:26 -04:00
2026-09-23 16:33:24 -04:00
2026-07-13 09:32:37 -04:00
2026-08-21 14:29:45 -04:00
2026-09-21 16:08:29 -04:00
2026-08-21 14:28:23 -04:00
2026-08-21 11:16:52 -04:00
2026-09-11 08:45:40 -04:00
2026-08-25 08:40:28 -04:00
2026-08-21 14:29:45 -04:00
2026-09-11 08:41:19 -04:00
2026-08-06 14:04:23 -04:00
2026-07-14 08:33:08 -04:00
2026-05-15 10:19:55 -04:00
2026-04-08 12:33:54 -04:00
2026-09-23 12:36:26 -04:00
2026-08-21 14:30:29 -04:00
2026-08-21 14:30:29 -04:00
2026-09-23 12:36:26 -04:00
2026-07-31 09:40:38 -04:00
2026-09-23 10:29:16 -04:00
2026-09-23 12:36:26 -04:00
2026-08-23 11:42:33 -04:00
2026-08-12 14:06:32 -04:00
2026-07-31 09:40:38 -04:00
2026-08-13 17:02:36 -04:00
2026-08-21 15:50:55 -04:00
2026-07-08 09:43:13 -04:00
2026-07-12 10:40:34 -04:00
2026-09-23 16:33:24 -04:00
2026-09-23 12:36:26 -04:00
2026-09-23 12:36:53 -04:00
2026-09-10 17:42:00 -04:00
2026-09-23 12:36:53 -04:00
2026-09-11 10:07:38 -04:00
2026-07-09 09:22:24 -04:00
2026-09-23 10:29:16 -04:00
2026-09-14 09:42:24 -04:00
2026-09-23 10:34:20 -04:00
2026-09-09 16:25:45 -04:00
2026-09-14 09:42:24 -04:00
2026-09-14 12:40:41 -04:00
2026-09-14 12:40:41 -04:00
2026-09-23 12:36:26 -04:00