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fix(13e6): clear-to-white before setup screens to defeat ghost

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A single DRF refresh isn't enough to discharge Spectra-6's color particles
when transitioning from a full-color photo to a mostly-yellow/red/green
setup screen — residual pixels from the previous photo stay visible.
Pre-fill with white (full refresh) before drawing the actual screen so
the panel is fully reset. Doubles the refresh time on setup events only;
photo cycles are unaffected.

Bumps PANEL_FW_VERSION to v1.0.3.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
This commit is contained in:
Matt Edholm
2026-05-17 13:34:39 -04:00
parent 55ee5aa95c
commit d23f33178e
2 changed files with 10 additions and 1 deletions
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src/panels/waveshare13e6/v1/epd_driver.cpp
+9
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@@ -450,14 +450,23 @@ static void draw_from_lfs(const char* path, uint8_t fallback_color,
// QR placeholders move to (W - old_x - QR_PX, H - old_y - QR_PX). // QR placeholders move to (W - old_x - QR_PX, H - old_y - QR_PX).
// AP (518 px QR): pre-rot 642,590 → post-rot 40,492 // AP (518 px QR): pre-rot 642,590 → post-rot 40,492
// Setup (574 px QR): pre-rot 313,750 → post-rot 313,276 (X centred) // Setup (574 px QR): pre-rot 313,750 → post-rot 313,276 (X centred)
// Setup screens (yellow AP / red retry / green setup) are mostly two-tone
// against a small palette. Transitioning from a full-color photo to one of
// these in a single DRF cycle leaves visible ghost of the previous image —
// Spectra-6's color particles need more discharge time than one refresh
// provides. Pre-clear to white first so the panel is fully reset, then draw
// the actual screen. Doubles the refresh time on setup events only.
void epd_draw_ap_screen(QRCode* qr) { void epd_draw_ap_screen(QRCode* qr) {
epd_fill(COLOR_WHITE);
draw_from_lfs("/ap_bg.bin", COLOR_YELLOW, qr, 40, 492, 14); draw_from_lfs("/ap_bg.bin", COLOR_YELLOW, qr, 40, 492, 14);
} }
void epd_draw_ap_screen_retry(QRCode* qr) { void epd_draw_ap_screen_retry(QRCode* qr) {
epd_fill(COLOR_WHITE);
draw_from_lfs("/ap_bg_retry.bin", COLOR_RED, qr, 40, 492, 14); draw_from_lfs("/ap_bg_retry.bin", COLOR_RED, qr, 40, 492, 14);
} }
void epd_draw_setup_screen(QRCode* qr) { void epd_draw_setup_screen(QRCode* qr) {
epd_fill(COLOR_WHITE);
draw_from_lfs("/setup_bg.bin", COLOR_GREEN, qr, 313, 276, 14); draw_from_lfs("/setup_bg.bin", COLOR_GREEN, qr, 313, 276, 14);
} }
src/panels/waveshare13e6/v1/version.h
+1 -1
View File
@@ -3,4 +3,4 @@
// Panel-specific firmware version for the Waveshare 13.3" Spectra-6 driver. // Panel-specific firmware version for the Waveshare 13.3" Spectra-6 driver.
// Bump on each driver change worth correlating with server-side reports. // Bump on each driver change worth correlating with server-side reports.
// Independent of the shared firmware version (HTTP / NVS / sleep / etc.). // Independent of the shared firmware version (HTTP / NVS / sleep / etc.).
#define PANEL_FW_VERSION "v1.0.2" #define PANEL_FW_VERSION "v1.0.3"