display code sanitization

include/display.h

@@ -9,8 +9,10 @@
 
 #if (HAS_DISPLAY) == 1
 #include <OneBitDisplay.h>
+extern ONE_BIT_DISPLAY *dp;
 #elif (HAS_DISPLAY) == 2
 #include <TFT_eSPI.h>
+extern TFT_eSPI *dp;
 #endif
 
 #define DISPLAY_PAGES (7) // number of paxcounter display pages
@@ -40,10 +42,10 @@
 #endif
 
 #ifndef MY_DISPLAY_FGCOLOR
-#define MY_DISPLAY_FGCOLOR 1 //OLED_WHITE
+#define MY_DISPLAY_FGCOLOR 1 // OLED_WHITE
 #endif
 #ifndef MY_DISPLAY_BGCOLOR
-#define MY_DISPLAY_BGCOLOR 0 //OLED_BLACK
+#define MY_DISPLAY_BGCOLOR 0 // OLED_BLACK
 #endif
 
 // settings for TFT display library
@@ -57,10 +59,10 @@
 #define MY_DISPLAY_FIRSTLINE 30
 
 #ifndef MY_DISPLAY_FGCOLOR
-#define MY_DISPLAY_FGCOLOR 0xFFFF //TFT_WHITE
+#define MY_DISPLAY_FGCOLOR 0xFFFF // TFT_WHITE
 #endif
 #ifndef MY_DISPLAY_BGCOLOR
-#define MY_DISPLAY_BGCOLOR 0x0000 //TFT_BLACK
+#define MY_DISPLAY_BGCOLOR 0x0000 // TFT_BLACK
 #endif
 
 #ifndef TOUCH_CS
@@ -104,7 +106,6 @@ void dp_init(bool verbose = false);
 void dp_shutdown(void);
 void dp_message(const char *msg, int line, bool invers);
 void dp_drawPage(bool nextpage);
-void dp_printf(const char *format, ...);
 void dp_setFont(int font, int inv = 0);
 void dp_dump(uint8_t *pBuffer = NULL);
 void dp_setTextCursor(int col, int row);
@@ -112,8 +113,6 @@ void dp_contrast(uint8_t contrast);
 void dp_clear(void);
 void dp_power(uint8_t screenon);
 void dp_printqr(uint16_t offset_x, uint16_t offset_y, const char *Message);
-void dp_fillRect(uint16_t x, uint16_t y, uint16_t width, uint16_t height,
-                 uint8_t bRender);
 void dp_scrollHorizontal(uint8_t *buf, const uint16_t width,
                          const uint16_t height, bool left = true);
 void dp_scrollVertical(uint8_t *buf, const uint16_t width,