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TFT_eSPI/TFT_eSPI.h

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/***************************************************
Arduino TFT graphics library targeted at ESP8266
and ESP32 based boards.
This is a standalone library that contains the
hardware driver, the graphics functions and the
proportional fonts.
The larger fonts are Run Length Encoded to reduce
their FLASH footprint.
****************************************************/
// Stop fonts etc being loaded multiple times
#ifndef _TFT_eSPIH_
#define _TFT_eSPIH_
#define TFT_ESPI_VERSION "1.4.30"
// Include header file that defines the fonts loaded, the TFT drivers
// available and the pins to be used, etc, etc
#include <User_Setup_Select.h>
//Standard support
#include <Arduino.h>
#include <Print.h>
#include <SPI.h>
#ifdef __AVR__
#include <avr/pgmspace.h>
#elif defined(ESP8266) || defined(ESP32)
#include <pgmspace.h>
#else
#define PROGMEM
#endif
// Include the processor specific drivers
#if defined (ESP32)
#include "Processors/TFT_eSPI_ESP32.h"
#elif defined (ESP8266)
#include "Processors/TFT_eSPI_ESP8266.h"
#elif defined (STM32)
//#include "Processors/TFT_eSPI_STM32.h"
#else
//#include "Processors/TFT_eSPI_Generic.h"
#endif
#ifndef TAB_COLOUR
#define TAB_COLOUR 0
#endif
// If the frequency is not defined, set a default
#ifndef SPI_FREQUENCY
#define SPI_FREQUENCY 20000000
#endif
// If the frequency is not defined, set a default
#ifndef SPI_READ_FREQUENCY
#define SPI_READ_FREQUENCY SPI_FREQUENCY
#endif
#if defined(ST7789_DRIVER) || defined(ST7789_2_DRIVER)
#define TFT_SPI_MODE SPI_MODE3
#else
#define TFT_SPI_MODE SPI_MODE0
#endif
// If the frequency is not defined, set a default
#ifndef SPI_TOUCH_FREQUENCY
#define SPI_TOUCH_FREQUENCY 2500000
#endif
// Use GLCD font in error case where user requests a smooth font file
// that does not exist (this is a temporary fix to stop ESP32 reboot)
#ifdef SMOOTH_FONT
#ifndef LOAD_GLCD
#define LOAD_GLCD
#endif
#endif
// Only load the fonts defined in User_Setup.h (to save space)
// Set flag so RLE rendering code is optionally compiled
#ifdef LOAD_GLCD
#include <Fonts/glcdfont.c>
#endif
#ifdef LOAD_FONT2
#include <Fonts/Font16.h>
#endif
#ifdef LOAD_FONT4
#include <Fonts/Font32rle.h>
#define LOAD_RLE
#endif
#ifdef LOAD_FONT6
#include <Fonts/Font64rle.h>
#ifndef LOAD_RLE
#define LOAD_RLE
#endif
#endif
#ifdef LOAD_FONT7
#include <Fonts/Font7srle.h>
#ifndef LOAD_RLE
#define LOAD_RLE
#endif
#endif
#ifdef LOAD_FONT8
#include <Fonts/Font72rle.h>
#ifndef LOAD_RLE
#define LOAD_RLE
#endif
#elif defined LOAD_FONT8N
#define LOAD_FONT8
#include <Fonts/Font72x53rle.h>
#ifndef LOAD_RLE
#define LOAD_RLE
#endif
#endif
#ifdef LOAD_GFXFF
// We can include all the free fonts and they will only be built into
// the sketch if they are used
#include <Fonts/GFXFF/gfxfont.h>
// Call up any user custom fonts
#include <User_Setups/User_Custom_Fonts.h>
#endif // #ifdef LOAD_GFXFF
//These enumerate the text plotting alignment (reference datum point)
#define TL_DATUM 0 // Top left (default)
#define TC_DATUM 1 // Top centre
#define TR_DATUM 2 // Top right
#define ML_DATUM 3 // Middle left
#define CL_DATUM 3 // Centre left, same as above
#define MC_DATUM 4 // Middle centre
#define CC_DATUM 4 // Centre centre, same as above
#define MR_DATUM 5 // Middle right
#define CR_DATUM 5 // Centre right, same as above
#define BL_DATUM 6 // Bottom left
#define BC_DATUM 7 // Bottom centre
#define BR_DATUM 8 // Bottom right
#define L_BASELINE 9 // Left character baseline (Line the 'A' character would sit on)
#define C_BASELINE 10 // Centre character baseline
#define R_BASELINE 11 // Right character baseline
// New color definitions use for all my libraries
#define TFT_BLACK 0x0000 /* 0, 0, 0 */
#define TFT_NAVY 0x000F /* 0, 0, 128 */
#define TFT_DARKGREEN 0x03E0 /* 0, 128, 0 */
#define TFT_DARKCYAN 0x03EF /* 0, 128, 128 */
#define TFT_MAROON 0x7800 /* 128, 0, 0 */
#define TFT_PURPLE 0x780F /* 128, 0, 128 */
#define TFT_OLIVE 0x7BE0 /* 128, 128, 0 */
#define TFT_LIGHTGREY 0xC618 /* 192, 192, 192 */
#define TFT_DARKGREY 0x7BEF /* 128, 128, 128 */
#define TFT_BLUE 0x001F /* 0, 0, 255 */
#define TFT_GREEN 0x07E0 /* 0, 255, 0 */
#define TFT_CYAN 0x07FF /* 0, 255, 255 */
#define TFT_RED 0xF800 /* 255, 0, 0 */
#define TFT_MAGENTA 0xF81F /* 255, 0, 255 */
#define TFT_YELLOW 0xFFE0 /* 255, 255, 0 */
#define TFT_WHITE 0xFFFF /* 255, 255, 255 */
#define TFT_ORANGE 0xFDA0 /* 255, 180, 0 */
#define TFT_GREENYELLOW 0xB7E0 /* 180, 255, 0 */
#define TFT_PINK 0xFC9F
// Next is a special 16 bit colour value that encodes to 8 bits
// and will then decode back to the same 16 bit value.
// Convenient for 8 bit and 16 bit transparent sprites.
#define TFT_TRANSPARENT 0x0120
// Swap any type
template <typename T> static inline void
swap_coord(T& a, T& b) { T t = a; a = b; b = t; }
#ifndef min
// Return minimum of two numbers, may already be defined
// #define min(a,b) (((a) < (b)) ? (a) : (b))
#endif
// This structure allows sketches to retrieve the user setup parameters at runtime
// by calling getSetup(), zero impact on code size unless used, mainly for diagnostics
typedef struct
{
String version = TFT_ESPI_VERSION;
int32_t esp;
uint8_t trans;
uint8_t serial;
uint8_t overlap;
#if defined (ESP32)
#if defined (USE_HSPI_PORT)
uint8_t port = HSPI;
#else
uint8_t port = VSPI;
#endif
#endif
uint16_t tft_driver; // Hexadecimal code
uint16_t tft_width; // Rotation 0 width and height
uint16_t tft_height;
uint8_t r0_x_offset; // Offsets, not all used yet
uint8_t r0_y_offset;
uint8_t r1_x_offset;
uint8_t r1_y_offset;
uint8_t r2_x_offset;
uint8_t r2_y_offset;
uint8_t r3_x_offset;
uint8_t r3_y_offset;
int8_t pin_tft_mosi;
int8_t pin_tft_miso;
int8_t pin_tft_clk;
int8_t pin_tft_cs;
int8_t pin_tft_dc;
int8_t pin_tft_rd;
int8_t pin_tft_wr;
int8_t pin_tft_rst;
int8_t pin_tft_d0;
int8_t pin_tft_d1;
int8_t pin_tft_d2;
int8_t pin_tft_d3;
int8_t pin_tft_d4;
int8_t pin_tft_d5;
int8_t pin_tft_d6;
int8_t pin_tft_d7;
int8_t pin_tch_cs;
int16_t tft_spi_freq;
int16_t tft_rd_freq;
int16_t tch_spi_freq;
} setup_t;
// This is a structure to conveniently hold information on the default fonts
// Stores pointer to font character image address table, width table and height
// Create a null set in case some fonts not used (to prevent crash)
const uint8_t widtbl_null[1] = {0};
PROGMEM const uint8_t chr_null[1] = {0};
PROGMEM const uint8_t* const chrtbl_null[1] = {chr_null};
typedef struct {
const uint8_t *chartbl;
const uint8_t *widthtbl;
uint8_t height;
uint8_t baseline;
} fontinfo;
// Now fill the structure
const PROGMEM fontinfo fontdata [] = {
#ifdef LOAD_GLCD
{ (const uint8_t *)font, widtbl_null, 0, 0 },
#else
{ (const uint8_t *)chrtbl_null, widtbl_null, 0, 0 },
#endif
// GLCD font (Font 1) does not have all parameters
{ (const uint8_t *)chrtbl_null, widtbl_null, 8, 7 },
#ifdef LOAD_FONT2
{ (const uint8_t *)chrtbl_f16, widtbl_f16, chr_hgt_f16, baseline_f16},
#else
{ (const uint8_t *)chrtbl_null, widtbl_null, 0, 0 },
#endif
// Font 3 current unused
{ (const uint8_t *)chrtbl_null, widtbl_null, 0, 0 },
#ifdef LOAD_FONT4
{ (const uint8_t *)chrtbl_f32, widtbl_f32, chr_hgt_f32, baseline_f32},
#else
{ (const uint8_t *)chrtbl_null, widtbl_null, 0, 0 },
#endif
// Font 5 current unused
{ (const uint8_t *)chrtbl_null, widtbl_null, 0, 0 },
#ifdef LOAD_FONT6
{ (const uint8_t *)chrtbl_f64, widtbl_f64, chr_hgt_f64, baseline_f64},
#else
{ (const uint8_t *)chrtbl_null, widtbl_null, 0, 0 },
#endif
#ifdef LOAD_FONT7
{ (const uint8_t *)chrtbl_f7s, widtbl_f7s, chr_hgt_f7s, baseline_f7s},
#else
{ (const uint8_t *)chrtbl_null, widtbl_null, 0, 0 },
#endif
#ifdef LOAD_FONT8
{ (const uint8_t *)chrtbl_f72, widtbl_f72, chr_hgt_f72, baseline_f72}
#else
{ (const uint8_t *)chrtbl_null, widtbl_null, 0, 0 }
#endif
};
typedef uint16_t (*getColorCallback)(uint16_t x, uint16_t y);
// Class functions and variables
class TFT_eSPI : public Print {
public:
TFT_eSPI(int16_t _W = TFT_WIDTH, int16_t _H = TFT_HEIGHT);
void init(uint8_t tc = TAB_COLOUR), begin(uint8_t tc = TAB_COLOUR); // Same - begin included for backwards compatibility
// These are virtual so the TFT_eSprite class can override them with sprite specific functions
virtual void drawPixel(int32_t x, int32_t y, uint32_t color),
drawChar(int32_t x, int32_t y, uint16_t c, uint32_t color, uint32_t bg, uint8_t size),
drawLine(int32_t x0, int32_t y0, int32_t x1, int32_t y1, uint32_t color),
drawFastVLine(int32_t x, int32_t y, int32_t h, uint32_t color),
drawFastHLine(int32_t x, int32_t y, int32_t w, uint32_t color),
fillRect(int32_t x, int32_t y, int32_t w, int32_t h, uint32_t color);
virtual int16_t drawChar(uint16_t uniCode, int32_t x, int32_t y, uint8_t font),
drawChar(uint16_t uniCode, int32_t x, int32_t y),
height(void),
width(void);
// The TFT_eSprite class inherits the following functions
void setWindow(int32_t xs, int32_t ys, int32_t xe, int32_t ye),
pushColor(uint16_t color),
pushColor(uint16_t color, uint32_t len),
pushColors(uint16_t *data, uint32_t len, bool swap = true), // With byte swap option
pushColors(uint8_t *data, uint32_t len),
fillScreen(uint32_t color);
void drawRect(int32_t x, int32_t y, int32_t w, int32_t h, uint32_t color),
drawRoundRect(int32_t x0, int32_t y0, int32_t w, int32_t h, int32_t radius, uint32_t color),
fillRoundRect(int32_t x0, int32_t y0, int32_t w, int32_t h, int32_t radius, uint32_t color),
setRotation(uint8_t r),
invertDisplay(bool i),
drawCircle(int32_t x0, int32_t y0, int32_t r, uint32_t color),
drawCircleHelper(int32_t x0, int32_t y0, int32_t r, uint8_t cornername, uint32_t color),
fillCircle(int32_t x0, int32_t y0, int32_t r, uint32_t color),
fillCircleHelper(int32_t x0, int32_t y0, int32_t r, uint8_t cornername, int32_t delta, uint32_t color),
drawEllipse(int16_t x0, int16_t y0, int32_t rx, int32_t ry, uint16_t color),
fillEllipse(int16_t x0, int16_t y0, int32_t rx, int32_t ry, uint16_t color),
drawTriangle(int32_t x0, int32_t y0, int32_t x1, int32_t y1, int32_t x2, int32_t y2, uint32_t color),
fillTriangle(int32_t x0, int32_t y0, int32_t x1, int32_t y1, int32_t x2, int32_t y2, uint32_t color),
drawBitmap(int16_t x, int16_t y, const uint8_t *bitmap, int16_t w, int16_t h, uint16_t fgcolor),
drawBitmap(int16_t x, int16_t y, const uint8_t *bitmap, int16_t w, int16_t h, uint16_t fgcolor, uint16_t bgcolor),
drawXBitmap(int16_t x, int16_t y, const uint8_t *bitmap, int16_t w, int16_t h, uint16_t fgcolor),
drawXBitmap(int16_t x, int16_t y, const uint8_t *bitmap, int16_t w, int16_t h, uint16_t fgcolor, uint16_t bgcolor),
setBitmapColor(uint16_t fgcolor, uint16_t bgcolor), // For 1bpp sprites
setPivot(int16_t x, int16_t y),
setCursor(int16_t x, int16_t y),
setCursor(int16_t x, int16_t y, uint8_t font),
setTextColor(uint16_t color),
setTextColor(uint16_t fgcolor, uint16_t bgcolor),
setTextSize(uint8_t size),
setTextWrap(bool wrapX, bool wrapY = false),
setTextDatum(uint8_t datum),
setTextPadding(uint16_t x_width),
#ifdef LOAD_GFXFF
setFreeFont(const GFXfont *f = NULL),
setTextFont(uint8_t font),
#else
setFreeFont(uint8_t font),
setTextFont(uint8_t font),
#endif
spiwrite(uint8_t),
writecommand(uint8_t c),
writedata(uint8_t d),
commandList(const uint8_t *addr);
uint8_t readcommand8(uint8_t cmd_function, uint8_t index = 0);
uint16_t readcommand16(uint8_t cmd_function, uint8_t index = 0);
uint32_t readcommand32(uint8_t cmd_function, uint8_t index = 0);
// Read the colour of a pixel at x,y and return value in 565 format
uint16_t readPixel(int32_t x0, int32_t y0);
void setCallback(getColorCallback getCol);
// The next functions can be used as a pair to copy screen blocks (or horizontal/vertical lines) to another location
// Read a block of pixels to a data buffer, buffer is 16 bit and the array size must be at least w * h
void readRect(int32_t x0, int32_t y0, int32_t w, int32_t h, uint16_t *data);
// Write a block of pixels to the screen
void pushRect(int32_t x0, int32_t y0, int32_t w, int32_t h, uint16_t *data);
// These are used to render images or sprites stored in RAM arrays
void pushImage(int32_t x0, int32_t y0, int32_t w, int32_t h, uint16_t *data);
void pushImage(int32_t x0, int32_t y0, int32_t w, int32_t h, uint16_t *data, uint16_t transparent);
// These are used to render images stored in FLASH (PROGMEM)
void pushImage(int32_t x0, int32_t y0, int32_t w, int32_t h, const uint16_t *data, uint16_t transparent);
void pushImage(int32_t x0, int32_t y0, int32_t w, int32_t h, const uint16_t *data);
// These are used by pushSprite for 1 and 8 bit colours
void pushImage(int32_t x0, int32_t y0, int32_t w, int32_t h, uint8_t *data, bool bpp8 = true);
void pushImage(int32_t x0, int32_t y0, int32_t w, int32_t h, uint8_t *data, uint8_t transparent, bool bpp8 = true);
// Write a solid block of a single colour
void pushBlock(uint16_t color, uint32_t len);
// Write a set of pixels stored in memory, use setSwapBytes(true/false) function to correct endianess
void pushPixels(const void * data_in, uint32_t len);
// Swap the byte order for pushImage() and pushPixels() - corrects endianness
void setSwapBytes(bool swap);
bool getSwapBytes(void);
// This next function has been used successfully to dump the TFT screen to a PC for documentation purposes
// It reads a screen area and returns the RGB 8 bit colour values of each pixel
// Set w and h to 1 to read 1 pixel's colour. The data buffer must be at least w * h * 3 bytes
void readRectRGB(int32_t x0, int32_t y0, int32_t w, int32_t h, uint8_t *data);
uint8_t getRotation(void),
getTextDatum(void),
color16to8(uint16_t color565); // Convert 16 bit colour to 8 bits
int16_t getCursorX(void),
getCursorY(void);
int16_t getPivotX(void),
getPivotY(void);
uint16_t fontsLoaded(void),
color565(uint8_t red, uint8_t green, uint8_t blue), // Convert 8 bit red, green and blue to 16 bits
color8to16(uint8_t color332); // Convert 8 bit colour to 16 bits
int16_t drawNumber(long long_num, int32_t poX, int32_t poY, uint8_t font),
drawNumber(long long_num, int32_t poX, int32_t poY),
drawFloat(float floatNumber, uint8_t decimal, int32_t poX, int32_t poY, uint8_t font),
drawFloat(float floatNumber, uint8_t decimal, int32_t poX, int32_t poY),
// Handle char arrays
drawString(const char *string, int32_t poX, int32_t poY, uint8_t font),
drawString(const char *string, int32_t poX, int32_t poY),
drawCentreString(const char *string, int32_t dX, int32_t poY, uint8_t font), // Deprecated, use setTextDatum() and drawString()
drawRightString(const char *string, int32_t dX, int32_t poY, uint8_t font), // Deprecated, use setTextDatum() and drawString()
// Handle String type
drawString(const String& string, int32_t poX, int32_t poY, uint8_t font),
drawString(const String& string, int32_t poX, int32_t poY),
drawCentreString(const String& string, int32_t dX, int32_t poY, uint8_t font), // Deprecated, use setTextDatum() and drawString()
drawRightString(const String& string, int32_t dX, int32_t poY, uint8_t font); // Deprecated, use setTextDatum() and drawString()
int16_t textWidth(const char *string, uint8_t font),
textWidth(const char *string),
textWidth(const String& string, uint8_t font),
textWidth(const String& string),
fontHeight(int16_t font),
fontHeight(void);
void setAddrWindow(int32_t xs, int32_t ys, int32_t w, int32_t h);
// Compatibility additions
void startWrite(void); // Begin SPI transaction
void writeColor(uint16_t color, uint32_t len); // Write colours without transaction overhead Deprecated, use pushBlock()
void endWrite(void); // End SPI transaction
uint16_t decodeUTF8(uint8_t *buf, uint16_t *index, uint16_t remaining);
uint16_t decodeUTF8(uint8_t c);
uint16_t alphaBlend(uint8_t alpha, uint16_t fgc, uint16_t bgc);
size_t write(uint8_t);
#ifdef TFT_SDA_READ
#if defined (TFT_eSPI_ENABLE_8_BIT_READ)
uint8_t tft_Read_8(void);
#endif
void begin_SDA_Read(void);
void end_SDA_Read(void);
#endif
// Set or get an arbitrary library attribute or configuration option
void setAttribute(uint8_t id = 0, uint8_t a = 0);
uint8_t getAttribute(uint8_t id = 0);
void getSetup(setup_t& tft_settings); // Sketch provides the instance to populate
static SPIClass& getSPIinstance(void);
int32_t cursor_x, cursor_y, padX;
uint32_t textcolor, textbgcolor;
uint32_t bitmap_fg, bitmap_bg;
uint8_t textfont, // Current selected font
textsize, // Current font size multiplier
textdatum, // Text reference datum
rotation; // Display rotation (0-3)
int16_t _xpivot; // x pivot point coordinate
int16_t _ypivot; // x pivot point coordinate
uint8_t decoderState = 0; // UTF8 decoder state
uint16_t decoderBuffer; // Unicode code-point buffer
private:
inline void spi_begin() __attribute__((always_inline));
inline void spi_end() __attribute__((always_inline));
inline void spi_begin_read() __attribute__((always_inline));
inline void spi_end_read() __attribute__((always_inline));
// Private function, sketches must use pushPixels() with setSwapBytes(true)
void pushSwapBytePixels(const void* data_in, uint32_t len);
void readAddrWindow(int32_t xs, int32_t ys, int32_t w, int32_t h);
// Byte read prototype
uint8_t readByte(void);
// GPIO parallel input/output control
void busDir(uint32_t mask, uint8_t mode);
// Single GPIO input/output direction control
void gpioMode(uint8_t gpio, uint8_t mode);
uint8_t tabcolor,
colstart = 0, rowstart = 0; // some ST7735 displays need this changed
volatile uint32_t *dcport, *csport;
uint32_t cspinmask, dcpinmask, wrpinmask, sclkpinmask;
#if defined(ESP32_PARALLEL)
uint32_t xclr_mask, xdir_mask, xset_mask[256];
#endif
uint32_t lastColor = 0xFFFF;
getColorCallback getColor = nullptr;
protected:
int32_t win_xe, win_ye;
int32_t _init_width, _init_height; // Display w/h as input, used by setRotation()
int32_t _width, _height; // Display w/h as modified by current rotation
int32_t addr_row, addr_col;
uint32_t fontsloaded;
uint8_t glyph_ab, // glyph delta Y (height) above baseline
glyph_bb; // glyph delta Y (height) below baseline
bool isDigits; // adjust bounding box for numbers to reduce visual jiggling
bool textwrapX, textwrapY; // If set, 'wrap' text at right and optionally bottom edge of display
bool _swapBytes; // Swap the byte order for TFT pushImage()
bool locked, inTransaction; // Transaction and mutex lock flags
bool _booted; // init() or begin() has already run once
bool _cp437; // If set, use correct CP437 charset (default is ON)
bool _utf8; // If set, use UTF-8 decoder in print stream 'write()' function (default ON)
uint32_t _lastColor; // Buffered value of last colour used
#ifdef LOAD_GFXFF
GFXfont *gfxFont;
#endif
// Load the Touch extension
#ifdef TOUCH_CS
#include "Extensions/Touch.h"
#endif
// Load the Anti-aliased font extension
#ifdef SMOOTH_FONT
#include "Extensions/Smooth_font.h"
#endif
}; // End of class TFT_eSPI
// Load the Button Class
#include "Extensions/Button.h"
// Load the Sprite Class
#include "Extensions/Sprite.h"
#endif
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