ESP32-PaxCounter/include/display.h

#ifndef _DISPLAY_H
#define _DISPLAY_H

#include "cyclic.h"
#include "qrcode.h"

#if (HAS_DISPLAY) == 1
#include <ss_oled.h>
#elif (HAS_DISPLAY) == 2
#include <bb_spi_lcd.h>
#else
#error Unknown display type
#endif

#define DISPLAY_PAGES (7) // number of paxcounter display pages

// settings for display library
#define USE_BACKBUFFER 1

// setup display hardware type, default is OLED 128x64
#ifndef MY_DISPLAY_TYPE
#define MY_DISPLAY_TYPE OLED_128x64
#endif

#ifdef MY_DISPLAY_ADDR
#define OLED_ADDR MY_DISPLAY_ADDR
#else
#define OLED_ADDR -1
#endif
#ifndef MY_DISPLAY_INVERT
#define MY_DISPLAY_INVERT 0
#endif

#ifndef USW_HW_I2C
#define USE_HW_I2C 1
#endif

#ifndef MY_DISPLAY_FLIP
#define MY_DISPLAY_FLIP 0
#endif

#ifndef MY_DISPLAY_WIDTH
#define MY_DISPLAY_WIDTH 128 // Width in pixels of OLED-display, must be 32X
#endif
#ifndef MY_DISPLAY_HEIGHT
#define MY_DISPLAY_HEIGHT 64 // Height in pixels of OLED-display, must be 64X
#endif

// some RGB color definitions
#define Black 0x0000       /*   0,   0,   0 */
#define Navy 0x000F        /*   0,   0, 128 */
#define DarkGreen 0x03E0   /*   0, 128,   0 */
#define DarkCyan 0x03EF    /*   0, 128, 128 */
#define Maroon 0x7800      /* 128,   0,   0 */
#define Purple 0x780F      /* 128,   0, 128 */
#define Olive 0x7BE0       /* 128, 128,   0 */
#define LightGrey 0xC618   /* 192, 192, 192 */
#define DarkGrey 0x7BEF    /* 128, 128, 128 */
#define Blue 0x001F        /*   0,   0, 255 */
#define Green 0x07E0       /*   0, 255,   0 */
#define Cyan 0x07FF        /*   0, 255, 255 */
#define Red 0xF800         /* 255,   0,   0 */
#define Magenta 0xF81F     /* 255,   0, 255 */
#define Yellow 0xFFE0      /* 255, 255,   0 */
#define White 0xFFFF       /* 255, 255, 255 */
#define Orange 0xFD20      /* 255, 165,   0 */
#define GreenYellow 0xAFE5 /* 173, 255,  47 */
#define Pink 0xF81F

#ifndef MY_DISPLAY_FGCOLOR
#define MY_DISPLAY_FGCOLOR White
#endif
#ifndef MY_DISPLAY_BGCOLOR
#define MY_DISPLAY_BGCOLOR Black
#endif

// settings for qr code generator
#define QR_VERSION 3     // 29 x 29px
#define QR_SCALEFACTOR 2 // 29 -> 58x < 64px

extern uint8_t DisplayIsOn, displaybuf[];

void dp_setup(int contrast = 0);
void dp_refresh(bool nextPage = false);
void dp_init(bool verbose = false);
void dp_shutdown(void);
void dp_drawPage(time_t t, bool nextpage);
void dp_printf(uint16_t x, uint16_t y, uint8_t font, uint8_t inv,
               const char *format, ...);
void dp_dump(uint8_t *pBuffer);
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,
                       const uint16_t height, int offset = 0);
int dp_drawPixel(uint8_t *buf, const uint16_t x, const uint16_t y,
                 const uint8_t dot);
void dp_plotCurve(uint16_t count, bool reset);
void dp_rescaleBuffer(uint8_t *buf, const int factor);

#endif