oled
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Vertical lines are not drawn if y2<y1
The current OLED.Display.Impl.SSD1306.Draw.line_v/4
implementation doesn't work if the height
(y2-y1
) is negative. Although the implementation is similar for OLED.Display.Impl.SSD1306.Draw.line_h/4
it's not affected as x1
and x2
get sorted in line/6