Files
Jakub 7d9d5f847d feat(screenshot): extend e-ink screenshot support via GxEPD2 patch
- Add lib/GxEPD2-patch/src/GxEPD2_BW.h: local patched copy of GxEPD2_BW.h
  that exposes getBuffer()/getBufferSize() under ENABLE_SCREENSHOT guard.
  Include guard (_GxEPD2_BW_H_) prevents double-inclusion of the installed
  library version.

- GxEPDDisplay.h: use patched header via relative include when
  ENABLE_SCREENSHOT so the patch takes precedence over the installed lib
  (PlatformIO adds library paths before -I build_flags).

- DisplayDriver.h: add virtual getBuffer()/getBufferSize()/getDisplayType()
  defaults (nullptr/0/0) under ENABLE_SCREENSHOT.

- SH1106Display.h / SSD1306Display.h / GxEPDDisplay.h: add concrete overrides;
  getDisplayType() returns 0 (OLED) or 1 (e-ink).

- MyMesh.cpp/h: replace fragile C-cast with virtual dispatch in
  handleScreenshotRequest(); extend 5-byte header to 6 bytes by appending
  display_type so the host tool can decode the correct pixel layout.

- tools/screenshot.py: parse 6-byte header; add eink_buffer_to_image()
  that decodes the row-major MSB-first GxEPD2 buffer with DISPLAY_ROTATION=1
  (phys_x = 127-ly, phys_y = lx); dispatch on display_type.

- variants/wio-tracker-l1-eink/platformio.ini: add
  [env:WioTrackerL1Eink_companion_dual_dev] with ENABLE_SCREENSHOT.
- variants/wio-tracker-l1/platformio.ini: unchanged (OLED env already exists).

Builds verified: WioTrackerL1Eink_companion_dual_dev SUCCESS,
                 WioTrackerL1Eink_companion_radio_ble SUCCESS (unaffected).

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
2026-05-28 01:03:47 +02:00
..
2025-01-13 14:07:48 +11:00

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