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feat: Add displayGrayscaleBase method for differential refresh

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(#2334)

Introduces a new display method that prepares the framebuffer as a base
frame for grayscale overlays. On X3 panels, this uses the OEM
differential base waveform (AA-pre-BW) without forcing a resync. Other
panels fall back to normal display with configurable refresh mode.


Dependent upon matching SDK commit to work
This commit is contained in:
Justin Mitchell
2026-06-24 07:53:19 -04:00
committed by GitHub
parent 9ad2da0950
commit f6e59aab72
7 changed files with 80 additions and 3 deletions
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lib/hal/HalDisplay.cpp
+10
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@@ -81,6 +81,16 @@ void HalDisplay::copyGrayscaleBuffers(const uint8_t* lsbBuffer, const uint8_t* m
einkDisplay.copyGrayscaleBuffers(lsbBuffer, msbBuffer);
}
void HalDisplay::displayGrayscaleBase(RefreshMode fallback, bool turnOffScreen) {
einkDisplay.displayGrayscaleBase(convertRefreshMode(fallback), turnOffScreen);
}
void HalDisplay::preconditionGrayscale() { einkDisplay.preconditionGrayscale(); }
void HalDisplay::preconditionGrayscale(uint16_t x, uint16_t y, uint16_t w, uint16_t h) {
einkDisplay.preconditionGrayscale(x, y, w, h);
}
void HalDisplay::copyGrayscaleLsbBuffers(const uint8_t* lsbBuffer) { einkDisplay.copyGrayscaleLsbBuffers(lsbBuffer); }
void HalDisplay::copyGrayscaleMsbBuffers(const uint8_t* msbBuffer) { einkDisplay.copyGrayscaleMsbBuffers(msbBuffer); }