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Fixed 1bpp inversion

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This commit is contained in:
Jonas Diemer 2025-12-17 13:17:49 +01:00
parent 432cd66ca4
commit 0218b6bde5
1 changed files with 1 additions and 3 deletions
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src/screens/SleepScreen.cpp
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@ -130,9 +130,7 @@ uint8_t* loadBMP(const char* filename, int& width, int& height) {
int byteIndex = x / 8; int byteIndex = x / 8;
int bitIndex = 7 - (x % 8); // MSB first in BMP file format int bitIndex = 7 - (x % 8); // MSB first in BMP file format
// In 1-bit BMPs, bit value 1 typically means black and 0 means white isBlack = (rowBuffer[byteIndex] & (1 << bitIndex)) == 0;
// Check if the bit is set (1) at the specified position
isBlack = (rowBuffer[byteIndex] & (1 << bitIndex)) != 0;
} else { // 24-bit } else { // 24-bit
// For 24-bit BMPs, convert RGB to grayscale // For 24-bit BMPs, convert RGB to grayscale
// BMP stores colors as BGR (Blue, Green, Red) // BMP stores colors as BGR (Blue, Green, Red)