diff options
Diffstat (limited to 'glcddrivers/image.c')
| -rw-r--r-- | glcddrivers/image.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/glcddrivers/image.c b/glcddrivers/image.c index 6a89ffa..a3d123f 100644 --- a/glcddrivers/image.c +++ b/glcddrivers/image.c @@ -136,18 +136,20 @@ void cDriverImage::SetPixel(int x, int y, uint32_t data) if (x >= width || y >= height) return; + int cols = (width + 7 ) >> 3; int pos = x % 8; if (config->upsideDown) { x = width - 1 - x; y = height - 1 - y; + } else { pos = 7 - pos; // reverse bit position } if (data == GRAPHLCD_White) - newLCD[y * x] |= ( 1 << pos ); + newLCD[y * cols + (x >> 3)] |= ( 1 << pos ); else - newLCD[y * x] &= ( 0xFF ^ ( 1 << pos) ); + newLCD[y * cols + (x >> 3)] &= ( 0xFF ^ ( 1 << pos) ); } void cDriverImage::Refresh(bool refreshAll) |