thooge/esp32-nmea2000-obp60
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Code Releases Activity

Fix image problem with 1Bit images

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This commit is contained in:
Norbert Walter
2026-02-28 15:27:39 +00:00
parent 415c155949
commit 2d6127912b
2 changed files with 29 additions and 1 deletions
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lib/obp60task/OBP60Extensions.h
+28
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@@ -147,6 +147,34 @@ LGFX & getdisplay();
#define PAGE_UPDATE 1 // page wants display to update
#define PAGE_HIBERNATE 2 // page wants displey to hibernate
// Draw monochrome bitmap on both E-Ink and TFT displays
// Konvertiert 1-Bit Bilder automatisch zu RGB565 für Farbdisplays
inline void drawMonochromeBitmap(
int16_t x, int16_t y,
const uint8_t *bitmap,
int16_t w, int16_t h,
uint16_t color) {
#ifdef DISPLAY_ST7796
// Für RGB565 TFT: Konvertierung von 1-Bit zu Pixel-Zeichnung
for (int row = 0; row < h; row++) {
for (int col = 0; col < w; col++) {
int byteIdx = (row * ((w + 7) / 8)) + (col / 8);
int bitIdx = col % 8;
uint8_t byte = bitmap[byteIdx];
// LSB-first format (Adafruit standard)
if (byte & (1 << bitIdx)) {
getdisplay().drawPixel(x + col, y + row, color);
}
}
}
#else
// Für E-Ink Displays: direkt drawBitmap verwenden
getdisplay().drawBitmap(x, y, bitmap, w, h, color);
#endif
}
// Display wrapper functions for E-Ink/TFT compatibility
inline void displayFirstPage() {
#ifdef DISPLAY_ST7796