curve plotter (experimental)

include/display.h

@@ -19,5 +19,6 @@ void oledScrollBufferLeft(uint8_t *buf, const uint16_t width,
 int oledDrawPixel(uint8_t *buf, const uint16_t x, const uint16_t y,
                   const uint8_t dot);
 void oledPlotCurve(uint16_t count, bool reset);
+void oledRescaleBuffer(uint8_t *buf, const int factor);
 
 #endif