kopia lustrzana https://github.com/Xinyuan-LilyGO/TTGO-T-Display
4282 wiersze
126 KiB
C++
4282 wiersze
126 KiB
C++
/***************************************************
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Arduino TFT graphics library targeted at 32 bit
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processors such as ESP32, ESP8266 and STM32.
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This is a standalone library that contains the
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hardware driver, the graphics functions and the
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proportional fonts.
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The larger fonts are Run Length Encoded to reduce their
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size.
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Created by Bodmer 2/12/16
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Last update by Bodmer 20/03/20
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****************************************************/
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#include "TFT_eSPI.h"
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#if defined (ESP32)
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#include "Processors/TFT_eSPI_ESP32.c"
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#elif defined (ESP8266)
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#include "Processors/TFT_eSPI_ESP8266.c"
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#elif defined (STM32) // (_VARIANT_ARDUINO_STM32_) stm32_def.h
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#include "Processors/TFT_eSPI_STM32.c"
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#else
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#include "Processors/TFT_eSPI_Generic.c"
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#endif
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/***************************************************************************************
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** Function name: begin_tft_write (was called spi_begin)
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** Description: Start SPI transaction for writes and select TFT
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***************************************************************************************/
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inline void TFT_eSPI::begin_tft_write(void){
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#if defined (SPI_HAS_TRANSACTION) && defined (SUPPORT_TRANSACTIONS) && !defined(TFT_PARALLEL_8_BIT)
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if (locked) {
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locked = false;
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spi.beginTransaction(SPISettings(SPI_FREQUENCY, MSBFIRST, TFT_SPI_MODE));
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CS_L;
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}
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#else
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CS_L;
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#endif
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SET_BUS_WRITE_MODE;
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}
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/***************************************************************************************
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** Function name: end_tft_write (was called spi_end)
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** Description: End transaction for write and deselect TFT
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***************************************************************************************/
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inline void TFT_eSPI::end_tft_write(void){
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#if defined (SPI_HAS_TRANSACTION) && defined (SUPPORT_TRANSACTIONS) && !defined(TFT_PARALLEL_8_BIT)
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if(!inTransaction) {
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if (!locked) {
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locked = true;
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CS_H;
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spi.endTransaction();
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}
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}
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SET_BUS_READ_MODE;
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#else
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if(!inTransaction) {CS_H;}
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#endif
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}
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/***************************************************************************************
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** Function name: begin_tft_read (was called spi_begin_read)
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** Description: Start transaction for reads and select TFT
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***************************************************************************************/
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// Reads require a lower SPI clock rate than writes
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inline void TFT_eSPI::begin_tft_read(void){
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DMA_BUSY_CHECK; // Wait for any DMA transfer to complete before changing SPI settings
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#if defined (SPI_HAS_TRANSACTION) && defined (SUPPORT_TRANSACTIONS) && !defined(TFT_PARALLEL_8_BIT)
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if (locked) {
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locked = false;
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spi.beginTransaction(SPISettings(SPI_READ_FREQUENCY, MSBFIRST, TFT_SPI_MODE));
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CS_L;
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}
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#else
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#if !defined(TFT_PARALLEL_8_BIT)
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spi.setFrequency(SPI_READ_FREQUENCY);
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#endif
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CS_L;
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#endif
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SET_BUS_READ_MODE;
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}
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/***************************************************************************************
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** Function name: end_tft_read (was called spi_end_read)
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** Description: End transaction for reads and deselect TFT
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***************************************************************************************/
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inline void TFT_eSPI::end_tft_read(void){
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#if defined (SPI_HAS_TRANSACTION) && defined (SUPPORT_TRANSACTIONS) && !defined(TFT_PARALLEL_8_BIT)
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if(!inTransaction) {
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if (!locked) {
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locked = true;
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CS_H;
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spi.endTransaction();
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}
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}
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#else
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#if !defined(TFT_PARALLEL_8_BIT)
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spi.setFrequency(SPI_FREQUENCY);
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#endif
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if(!inTransaction) {CS_H;}
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#endif
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SET_BUS_WRITE_MODE;
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}
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/***************************************************************************************
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** Function name: Legacy - deprecated
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** Description: Start/end transaction
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***************************************************************************************/
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void TFT_eSPI::spi_begin() {begin_tft_write();}
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void TFT_eSPI::spi_end() { end_tft_write();}
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void TFT_eSPI::spi_begin_read() {begin_tft_read(); }
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void TFT_eSPI::spi_end_read() { end_tft_read(); }
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/***************************************************************************************
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** Function name: TFT_eSPI
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** Description: Constructor , we must use hardware SPI pins
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***************************************************************************************/
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TFT_eSPI::TFT_eSPI(int16_t w, int16_t h)
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{
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// The control pins are deliberately set to the inactive state (CS high) as setup()
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// might call and initialise other SPI peripherals which would could cause conflicts
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// if CS is floating or undefined.
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#ifdef TFT_CS
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pinMode(TFT_CS, OUTPUT);
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digitalWrite(TFT_CS, HIGH); // Chip select high (inactive)
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#endif
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// Configure chip select for touchscreen controller if present
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#ifdef TOUCH_CS
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pinMode(TOUCH_CS, OUTPUT);
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digitalWrite(TOUCH_CS, HIGH); // Chip select high (inactive)
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#endif
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#ifdef TFT_WR
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pinMode(TFT_WR, OUTPUT);
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digitalWrite(TFT_WR, HIGH); // Set write strobe high (inactive)
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#endif
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#ifdef TFT_DC
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pinMode(TFT_DC, OUTPUT);
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digitalWrite(TFT_DC, HIGH); // Data/Command high = data mode
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#endif
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#ifdef TFT_RST
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if (TFT_RST >= 0) {
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pinMode(TFT_RST, OUTPUT);
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digitalWrite(TFT_RST, HIGH); // Set high, do not share pin with another SPI device
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}
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#endif
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#if defined (TFT_PARALLEL_8_BIT)
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// Make sure read is high before we set the bus to output
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pinMode(TFT_RD, OUTPUT);
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digitalWrite(TFT_RD, HIGH);
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// Set TFT data bus lines to output
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pinMode(TFT_D0, OUTPUT); digitalWrite(TFT_D0, HIGH);
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pinMode(TFT_D1, OUTPUT); digitalWrite(TFT_D1, HIGH);
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pinMode(TFT_D2, OUTPUT); digitalWrite(TFT_D2, HIGH);
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pinMode(TFT_D3, OUTPUT); digitalWrite(TFT_D3, HIGH);
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pinMode(TFT_D4, OUTPUT); digitalWrite(TFT_D4, HIGH);
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pinMode(TFT_D5, OUTPUT); digitalWrite(TFT_D5, HIGH);
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pinMode(TFT_D6, OUTPUT); digitalWrite(TFT_D6, HIGH);
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pinMode(TFT_D7, OUTPUT); digitalWrite(TFT_D7, HIGH);
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CONSTRUCTOR_INIT_TFT_DATA_BUS;
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#endif
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_init_width = _width = w; // Set by specific xxxxx_Defines.h file or by users sketch
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_init_height = _height = h; // Set by specific xxxxx_Defines.h file or by users sketch
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rotation = 0;
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cursor_y = cursor_x = 0;
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textfont = 1;
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textsize = 1;
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textcolor = bitmap_fg = 0xFFFF; // White
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textbgcolor = bitmap_bg = 0x0000; // Black
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padX = 0; // No padding
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isDigits = false; // No bounding box adjustment
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textwrapX = true; // Wrap text at end of line when using print stream
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textwrapY = false; // Wrap text at bottom of screen when using print stream
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textdatum = TL_DATUM; // Top Left text alignment is default
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fontsloaded = 0;
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_swapBytes = false; // Do not swap colour bytes by default
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locked = true; // Transaction mutex lock flags
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inTransaction = false;
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_booted = true; // Default attributes
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_cp437 = true;
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_utf8 = true;
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#ifdef FONT_FS_AVAILABLE
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fs_font = true; // Smooth font filing system or array (fs_font = false) flag
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#endif
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#if defined (ESP32) && defined (CONFIG_SPIRAM_SUPPORT)
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if (psramFound()) _psram_enable = true; // Enable the use of PSRAM (if available)
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else
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#endif
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_psram_enable = false;
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addr_row = 0xFFFF;
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addr_col = 0xFFFF;
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_xpivot = 0;
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_ypivot = 0;
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cspinmask = 0;
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dcpinmask = 0;
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wrpinmask = 0;
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sclkpinmask = 0;
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#ifdef LOAD_GLCD
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fontsloaded = 0x0002; // Bit 1 set
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#endif
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#ifdef LOAD_FONT2
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fontsloaded |= 0x0004; // Bit 2 set
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#endif
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#ifdef LOAD_FONT4
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fontsloaded |= 0x0010; // Bit 4 set
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#endif
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#ifdef LOAD_FONT6
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fontsloaded |= 0x0040; // Bit 6 set
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#endif
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#ifdef LOAD_FONT7
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fontsloaded |= 0x0080; // Bit 7 set
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#endif
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#ifdef LOAD_FONT8
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fontsloaded |= 0x0100; // Bit 8 set
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#endif
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#ifdef LOAD_FONT8N
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fontsloaded |= 0x0200; // Bit 9 set
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#endif
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#ifdef SMOOTH_FONT
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fontsloaded |= 0x8000; // Bit 15 set
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#endif
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}
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/***************************************************************************************
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** Function name: begin
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** Description: Included for backwards compatibility
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***************************************************************************************/
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void TFT_eSPI::begin(uint8_t tc)
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{
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init(tc);
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}
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/***************************************************************************************
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** Function name: init (tc is tab colour for ST7735 displays only)
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** Description: Reset, then initialise the TFT display registers
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***************************************************************************************/
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void TFT_eSPI::init(uint8_t tc)
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{
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if (_booted)
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{
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#if !defined (ESP32) && !defined(TFT_PARALLEL_8_BIT)
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#if defined (TFT_CS) && (TFT_CS >= 0)
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cspinmask = (uint32_t) digitalPinToBitMask(TFT_CS);
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#endif
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#if defined (TFT_DC) && (TFT_DC >= 0)
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dcpinmask = (uint32_t) digitalPinToBitMask(TFT_DC);
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#endif
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#if defined (TFT_WR) && (TFT_WR >= 0)
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wrpinmask = (uint32_t) digitalPinToBitMask(TFT_WR);
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#endif
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#if defined (TFT_SCLK) && (TFT_SCLK >= 0)
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sclkpinmask = (uint32_t) digitalPinToBitMask(TFT_SCLK);
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#endif
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#if defined (TFT_SPI_OVERLAP) && defined (ESP8266)
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// Overlap mode SD0=MISO, SD1=MOSI, CLK=SCLK must use D3 as CS
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// pins(int8_t sck, int8_t miso, int8_t mosi, int8_t ss);
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//spi.pins( 6, 7, 8, 0);
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spi.pins(6, 7, 8, 0);
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#endif
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spi.begin(); // This will set HMISO to input
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#else
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#if !defined(TFT_PARALLEL_8_BIT)
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#if defined (TFT_MOSI) && !defined (TFT_SPI_OVERLAP)
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spi.begin(TFT_SCLK, TFT_MISO, TFT_MOSI, -1);
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#else
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spi.begin();
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#endif
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#endif
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#endif
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inTransaction = false;
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locked = true;
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INIT_TFT_DATA_BUS;
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#ifdef TFT_CS
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// Set to output once again in case D6 (MISO) is used for CS
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pinMode(TFT_CS, OUTPUT);
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digitalWrite(TFT_CS, HIGH); // Chip select high (inactive)
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#elif defined (ESP8266) && !defined (TFT_PARALLEL_8_BIT)
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spi.setHwCs(1); // Use hardware SS toggling
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#endif
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// Set to output once again in case D6 (MISO) is used for DC
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#ifdef TFT_DC
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pinMode(TFT_DC, OUTPUT);
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digitalWrite(TFT_DC, HIGH); // Data/Command high = data mode
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#endif
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_booted = false;
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end_tft_write();
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} // end of: if just _booted
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// Toggle RST low to reset
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#ifdef TFT_RST
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if (TFT_RST >= 0) {
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digitalWrite(TFT_RST, HIGH);
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delay(5);
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digitalWrite(TFT_RST, LOW);
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delay(20);
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digitalWrite(TFT_RST, HIGH);
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}
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else writecommand(TFT_SWRST); // Software reset
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#else
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writecommand(TFT_SWRST); // Software reset
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#endif
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delay(150); // Wait for reset to complete
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begin_tft_write();
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tc = tc; // Supress warning
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// This loads the driver specific initialisation code <<<<<<<<<<<<<<<<<<<<< ADD NEW DRIVERS TO THE LIST HERE <<<<<<<<<<<<<<<<<<<<<<<
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#if defined (ILI9341_DRIVER)
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#include "TFT_Drivers/ILI9341_Init.h"
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#elif defined (ST7735_DRIVER)
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tabcolor = tc;
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#include "TFT_Drivers/ST7735_Init.h"
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#elif defined (ILI9163_DRIVER)
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#include "TFT_Drivers/ILI9163_Init.h"
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#elif defined (S6D02A1_DRIVER)
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#include "TFT_Drivers/S6D02A1_Init.h"
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#elif defined (ST7796_DRIVER)
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#include "TFT_Drivers/ST7796_Init.h"
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#elif defined (ILI9486_DRIVER)
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#include "TFT_Drivers/ILI9486_Init.h"
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#elif defined (ILI9481_DRIVER)
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#include "TFT_Drivers/ILI9481_Init.h"
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#elif defined (ILI9488_DRIVER)
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#include "TFT_Drivers/ILI9488_Init.h"
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#elif defined (HX8357D_DRIVER)
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#include "TFT_Drivers/HX8357D_Init.h"
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#elif defined (ST7789_DRIVER)
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#include "TFT_Drivers/ST7789_Init.h"
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#elif defined (R61581_DRIVER)
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#include "TFT_Drivers/R61581_Init.h"
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#elif defined (RM68140_DRIVER)
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#include "TFT_Drivers/RM68140_Init.h"
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#elif defined (ST7789_2_DRIVER)
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#include "TFT_Drivers/ST7789_2_Init.h"
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#elif defined (SSD1963_480_DRIVER)
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#include "TFT_Drivers/SSD1963_Init.h"
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#elif defined (SSD1963_800_DRIVER)
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#include "TFT_Drivers/SSD1963_Init.h"
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#elif defined (SSD1963_800ALT_DRIVER)
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#include "TFT_Drivers/SSD1963_Init.h"
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#endif
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#ifdef TFT_INVERSION_ON
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writecommand(TFT_INVON);
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#endif
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#ifdef TFT_INVERSION_OFF
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writecommand(TFT_INVOFF);
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#endif
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end_tft_write();
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setRotation(rotation);
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#if defined (TFT_BL) && defined (TFT_BACKLIGHT_ON)
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pinMode(TFT_BL, OUTPUT);
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digitalWrite(TFT_BL, TFT_BACKLIGHT_ON);
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#else
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#if defined (TFT_BL) && defined (M5STACK)
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// Turn on the back-light LED
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pinMode(TFT_BL, OUTPUT);
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digitalWrite(TFT_BL, HIGH);
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#endif
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#endif
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}
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/***************************************************************************************
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** Function name: setRotation
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** Description: rotate the screen orientation m = 0-3 or 4-7 for BMP drawing
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***************************************************************************************/
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void TFT_eSPI::setRotation(uint8_t m)
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{
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begin_tft_write();
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// This loads the driver specific rotation code <<<<<<<<<<<<<<<<<<<<< ADD NEW DRIVERS TO THE LIST HERE <<<<<<<<<<<<<<<<<<<<<<<
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#if defined (ILI9341_DRIVER)
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#include "TFT_Drivers/ILI9341_Rotation.h"
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#elif defined (ST7735_DRIVER)
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#include "TFT_Drivers/ST7735_Rotation.h"
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#elif defined (ILI9163_DRIVER)
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#include "TFT_Drivers/ILI9163_Rotation.h"
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#elif defined (S6D02A1_DRIVER)
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#include "TFT_Drivers/S6D02A1_Rotation.h"
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#elif defined (ST7796_DRIVER)
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#include "TFT_Drivers/ST7796_Rotation.h"
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#elif defined (ILI9486_DRIVER)
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#include "TFT_Drivers/ILI9486_Rotation.h"
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#elif defined (ILI9481_DRIVER)
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#include "TFT_Drivers/ILI9481_Rotation.h"
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#elif defined (ILI9488_DRIVER)
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#include "TFT_Drivers/ILI9488_Rotation.h"
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#elif defined (HX8357D_DRIVER)
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#include "TFT_Drivers/HX8357D_Rotation.h"
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#elif defined (ST7789_DRIVER)
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#include "TFT_Drivers/ST7789_Rotation.h"
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#elif defined (R61581_DRIVER)
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#include "TFT_Drivers/R61581_Rotation.h"
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#elif defined (RM68140_DRIVER)
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#include "TFT_Drivers/RM68140_Rotation.h"
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#elif defined (ST7789_2_DRIVER)
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#include "TFT_Drivers/ST7789_2_Rotation.h"
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#endif
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delayMicroseconds(10);
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end_tft_write();
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addr_row = 0xFFFF;
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addr_col = 0xFFFF;
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}
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/***************************************************************************************
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** Function name: commandList, used for FLASH based lists only (e.g. ST7735)
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** Description: Get initialisation commands from FLASH and send to TFT
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***************************************************************************************/
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void TFT_eSPI::commandList (const uint8_t *addr)
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{
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uint8_t numCommands;
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uint8_t numArgs;
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uint8_t ms;
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numCommands = pgm_read_byte(addr++); // Number of commands to follow
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while (numCommands--) // For each command...
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{
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writecommand(pgm_read_byte(addr++)); // Read, issue command
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numArgs = pgm_read_byte(addr++); // Number of args to follow
|
|
ms = numArgs & TFT_INIT_DELAY; // If hibit set, delay follows args
|
|
numArgs &= ~TFT_INIT_DELAY; // Mask out delay bit
|
|
|
|
while (numArgs--) // For each argument...
|
|
{
|
|
writedata(pgm_read_byte(addr++)); // Read, issue argument
|
|
}
|
|
|
|
if (ms)
|
|
{
|
|
ms = pgm_read_byte(addr++); // Read post-command delay time (ms)
|
|
delay( (ms==255 ? 500 : ms) );
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
|
|
/***************************************************************************************
|
|
** Function name: spiwrite
|
|
** Description: Write 8 bits to SPI port (legacy support only)
|
|
***************************************************************************************/
|
|
void TFT_eSPI::spiwrite(uint8_t c)
|
|
{
|
|
begin_tft_write();
|
|
tft_Write_8(c);
|
|
end_tft_write();
|
|
}
|
|
|
|
|
|
/***************************************************************************************
|
|
** Function name: writecommand
|
|
** Description: Send an 8 bit command to the TFT
|
|
***************************************************************************************/
|
|
void TFT_eSPI::writecommand(uint8_t c)
|
|
{
|
|
begin_tft_write();
|
|
|
|
DC_C;
|
|
|
|
tft_Write_8(c);
|
|
|
|
DC_D;
|
|
|
|
end_tft_write();
|
|
|
|
}
|
|
|
|
|
|
/***************************************************************************************
|
|
** Function name: writedata
|
|
** Description: Send a 8 bit data value to the TFT
|
|
***************************************************************************************/
|
|
void TFT_eSPI::writedata(uint8_t d)
|
|
{
|
|
begin_tft_write();
|
|
|
|
DC_D; // Play safe, but should already be in data mode
|
|
|
|
tft_Write_8(d);
|
|
|
|
CS_L; // Allow more hold time for low VDI rail
|
|
|
|
end_tft_write();
|
|
}
|
|
|
|
|
|
/***************************************************************************************
|
|
** Function name: readcommand8
|
|
** Description: Read a 8 bit data value from an indexed command register
|
|
***************************************************************************************/
|
|
uint8_t TFT_eSPI::readcommand8(uint8_t cmd_function, uint8_t index)
|
|
{
|
|
uint8_t reg = 0;
|
|
#ifdef TFT_PARALLEL_8_BIT
|
|
|
|
writecommand(cmd_function); // Sets DC and CS high
|
|
|
|
busDir(dir_mask, INPUT);
|
|
|
|
CS_L;
|
|
|
|
// Read nth parameter (assumes caller discards 1st parameter or points index to 2nd)
|
|
while(index--) reg = readByte();
|
|
|
|
busDir(dir_mask, OUTPUT);
|
|
|
|
CS_H;
|
|
|
|
#else // SPI interface
|
|
// Tested with ILI9341 set to Interface II i.e. IM [3:0] = "1101"
|
|
begin_tft_read();
|
|
index = 0x10 + (index & 0x0F);
|
|
|
|
DC_C; tft_Write_8(0xD9);
|
|
DC_D; tft_Write_8(index);
|
|
|
|
CS_H; // Some displays seem to need CS to be pulsed here, or is just a delay needed?
|
|
CS_L;
|
|
|
|
DC_C; tft_Write_8(cmd_function);
|
|
DC_D;
|
|
reg = tft_Read_8();
|
|
|
|
end_tft_read();
|
|
#endif
|
|
return reg;
|
|
}
|
|
|
|
|
|
/***************************************************************************************
|
|
** Function name: readcommand16
|
|
** Description: Read a 16 bit data value from an indexed command register
|
|
***************************************************************************************/
|
|
uint16_t TFT_eSPI::readcommand16(uint8_t cmd_function, uint8_t index)
|
|
{
|
|
uint32_t reg;
|
|
|
|
reg = (readcommand8(cmd_function, index + 0) << 8);
|
|
reg |= (readcommand8(cmd_function, index + 1) << 0);
|
|
|
|
return reg;
|
|
}
|
|
|
|
|
|
/***************************************************************************************
|
|
** Function name: readcommand32
|
|
** Description: Read a 32 bit data value from an indexed command register
|
|
***************************************************************************************/
|
|
uint32_t TFT_eSPI::readcommand32(uint8_t cmd_function, uint8_t index)
|
|
{
|
|
uint32_t reg;
|
|
|
|
reg = ((uint32_t)readcommand8(cmd_function, index + 0) << 24);
|
|
reg |= ((uint32_t)readcommand8(cmd_function, index + 1) << 16);
|
|
reg |= ((uint32_t)readcommand8(cmd_function, index + 2) << 8);
|
|
reg |= ((uint32_t)readcommand8(cmd_function, index + 3) << 0);
|
|
|
|
return reg;
|
|
}
|
|
|
|
|
|
/***************************************************************************************
|
|
** Function name: read pixel (for SPI Interface II i.e. IM [3:0] = "1101")
|
|
** Description: Read 565 pixel colours from a pixel
|
|
***************************************************************************************/
|
|
uint16_t TFT_eSPI::readPixel(int32_t x0, int32_t y0)
|
|
{
|
|
#if defined(TFT_PARALLEL_8_BIT)
|
|
|
|
CS_L;
|
|
|
|
readAddrWindow(x0, y0, 1, 1);
|
|
|
|
// Set masked pins D0- D7 to input
|
|
busDir(dir_mask, INPUT);
|
|
|
|
// Dummy read to throw away don't care value
|
|
readByte();
|
|
|
|
// Fetch the 16 bit BRG pixel
|
|
//uint16_t rgb = (readByte() << 8) | readByte();
|
|
|
|
#if defined (ILI9341_DRIVER) | defined (ILI9488_DRIVER) // Read 3 bytes
|
|
|
|
// Read window pixel 24 bit RGB values and fill in LS bits
|
|
uint16_t rgb = ((readByte() & 0xF8) << 8) | ((readByte() & 0xFC) << 3) | (readByte() >> 3);
|
|
|
|
CS_H;
|
|
|
|
// Set masked pins D0- D7 to output
|
|
busDir(dir_mask, OUTPUT);
|
|
|
|
return rgb;
|
|
|
|
#else // ILI9481 or ILI9486 16 bit read
|
|
|
|
// Fetch the 16 bit BRG pixel
|
|
uint16_t bgr = (readByte() << 8) | readByte();
|
|
|
|
CS_H;
|
|
|
|
// Set masked pins D0- D7 to output
|
|
busDir(dir_mask, OUTPUT);
|
|
|
|
#ifdef ILI9486_DRIVER
|
|
return bgr;
|
|
#else
|
|
// Swap Red and Blue (could check MADCTL setting to see if this is needed)
|
|
return (bgr>>11) | (bgr<<11) | (bgr & 0x7E0);
|
|
#endif
|
|
|
|
#endif
|
|
|
|
#else // Not TFT_PARALLEL_8_BIT
|
|
|
|
// This function can get called during antialiased font rendering
|
|
// so a transaction may be in progress
|
|
bool wasInTransaction = inTransaction;
|
|
if (inTransaction) { inTransaction= false; end_tft_write();}
|
|
|
|
begin_tft_read();
|
|
|
|
readAddrWindow(x0, y0, 1, 1); // Sets CS low
|
|
|
|
#ifdef TFT_SDA_READ
|
|
begin_SDA_Read();
|
|
#endif
|
|
|
|
// Dummy read to throw away don't care value
|
|
tft_Read_8();
|
|
|
|
//#if !defined (ILI9488_DRIVER)
|
|
|
|
// Read the 3 RGB bytes, colour is actually only in the top 6 bits of each byte
|
|
// as the TFT stores colours as 18 bits
|
|
uint8_t r = tft_Read_8();
|
|
uint8_t g = tft_Read_8();
|
|
uint8_t b = tft_Read_8();
|
|
/*
|
|
#else
|
|
|
|
// The 6 colour bits are in MS 6 bits of each byte, but the ILI9488 needs an extra clock pulse
|
|
// so bits appear shifted right 1 bit, so mask the middle 6 bits then shift 1 place left
|
|
uint8_t r = (tft_Read_8()&0x7E)<<1;
|
|
uint8_t g = (tft_Read_8()&0x7E)<<1;
|
|
uint8_t b = (tft_Read_8()&0x7E)<<1;
|
|
|
|
#endif
|
|
*/
|
|
CS_H;
|
|
|
|
#ifdef TFT_SDA_READ
|
|
end_SDA_Read();
|
|
#endif
|
|
|
|
end_tft_read();
|
|
|
|
// Reinstate the transaction if one was in progress
|
|
if(wasInTransaction) { begin_tft_write(); inTransaction = true; }
|
|
|
|
return color565(r, g, b);
|
|
|
|
#endif
|
|
}
|
|
|
|
void TFT_eSPI::setCallback(getColorCallback getCol)
|
|
{
|
|
getColor = getCol;
|
|
}
|
|
|
|
|
|
/***************************************************************************************
|
|
** Function name: read rectangle (for SPI Interface II i.e. IM [3:0] = "1101")
|
|
** Description: Read 565 pixel colours from a defined area
|
|
***************************************************************************************/
|
|
void TFT_eSPI::readRect(int32_t x, int32_t y, int32_t w, int32_t h, uint16_t *data)
|
|
{
|
|
if ((x > _width) || (y > _height) || (w == 0) || (h == 0)) return;
|
|
|
|
#if defined(TFT_PARALLEL_8_BIT)
|
|
|
|
CS_L;
|
|
|
|
readAddrWindow(x, y, w, h);
|
|
|
|
// Set masked pins D0- D7 to input
|
|
busDir(dir_mask, INPUT);
|
|
|
|
// Dummy read to throw away don't care value
|
|
readByte();
|
|
|
|
// Total pixel count
|
|
uint32_t len = w * h;
|
|
|
|
#if defined (ILI9341_DRIVER) | defined (ILI9488_DRIVER) // Read 3 bytes
|
|
// Fetch the 24 bit RGB value
|
|
while (len--) {
|
|
// Assemble the RGB 16 bit colour
|
|
uint16_t rgb = ((readByte() & 0xF8) << 8) | ((readByte() & 0xFC) << 3) | (readByte() >> 3);
|
|
|
|
// Swapped byte order for compatibility with pushRect()
|
|
*data++ = (rgb<<8) | (rgb>>8);
|
|
}
|
|
#else // ILI9481 reads as 16 bits
|
|
// Fetch the 16 bit BRG pixels
|
|
while (len--) {
|
|
#ifdef ILI9486_DRIVER
|
|
// Read the RGB 16 bit colour
|
|
*data++ = readByte() | (readByte() << 8);
|
|
#else
|
|
// Read the BRG 16 bit colour
|
|
uint16_t bgr = (readByte() << 8) | readByte();
|
|
// Swap Red and Blue (could check MADCTL setting to see if this is needed)
|
|
uint16_t rgb = (bgr>>11) | (bgr<<11) | (bgr & 0x7E0);
|
|
// Swapped byte order for compatibility with pushRect()
|
|
*data++ = (rgb<<8) | (rgb>>8);
|
|
#endif
|
|
}
|
|
#endif
|
|
|
|
CS_H;
|
|
|
|
// Set masked pins D0- D7 to output
|
|
busDir(dir_mask, OUTPUT);
|
|
|
|
#else // SPI interface
|
|
|
|
begin_tft_read();
|
|
|
|
readAddrWindow(x, y, w, h);
|
|
|
|
#ifdef TFT_SDA_READ
|
|
begin_SDA_Read();
|
|
#endif
|
|
|
|
// Dummy read to throw away don't care value
|
|
tft_Read_8();
|
|
|
|
// Read window pixel 24 bit RGB values
|
|
uint32_t len = w * h;
|
|
while (len--) {
|
|
|
|
#if !defined (ILI9488_DRIVER)
|
|
|
|
// Read the 3 RGB bytes, colour is actually only in the top 6 bits of each byte
|
|
// as the TFT stores colours as 18 bits
|
|
uint8_t r = tft_Read_8();
|
|
uint8_t g = tft_Read_8();
|
|
uint8_t b = tft_Read_8();
|
|
|
|
#else
|
|
|
|
// The 6 colour bits are in MS 6 bits of each byte but we do not include the extra clock pulse
|
|
// so we use a trick and mask the middle 6 bits of the byte, then only shift 1 place left
|
|
uint8_t r = (tft_Read_8()&0x7E)<<1;
|
|
uint8_t g = (tft_Read_8()&0x7E)<<1;
|
|
uint8_t b = (tft_Read_8()&0x7E)<<1;
|
|
|
|
#endif
|
|
|
|
// Swapped colour byte order for compatibility with pushRect()
|
|
*data++ = (r & 0xF8) | (g & 0xE0) >> 5 | (b & 0xF8) << 5 | (g & 0x1C) << 11;
|
|
}
|
|
|
|
CS_H;
|
|
|
|
#ifdef TFT_SDA_READ
|
|
end_SDA_Read();
|
|
#endif
|
|
|
|
end_tft_read();
|
|
|
|
#endif
|
|
}
|
|
|
|
|
|
/***************************************************************************************
|
|
** Function name: push rectangle
|
|
** Description: push 565 pixel colours into a defined area
|
|
***************************************************************************************/
|
|
void TFT_eSPI::pushRect(int32_t x, int32_t y, int32_t w, int32_t h, uint16_t *data)
|
|
{
|
|
bool swap = _swapBytes; _swapBytes = false;
|
|
pushImage(x, y, w, h, data);
|
|
_swapBytes = swap;
|
|
}
|
|
|
|
|
|
/***************************************************************************************
|
|
** Function name: pushImage
|
|
** Description: plot 16 bit colour sprite or image onto TFT
|
|
***************************************************************************************/
|
|
void TFT_eSPI::pushImage(int32_t x, int32_t y, int32_t w, int32_t h, uint16_t *data)
|
|
{
|
|
|
|
if ((x >= _width) || (y >= _height)) return;
|
|
|
|
int32_t dx = 0;
|
|
int32_t dy = 0;
|
|
int32_t dw = w;
|
|
int32_t dh = h;
|
|
|
|
if (x < 0) { dw += x; dx = -x; x = 0; }
|
|
if (y < 0) { dh += y; dy = -y; y = 0; }
|
|
|
|
if ((x + dw) > _width ) dw = _width - x;
|
|
if ((y + dh) > _height) dh = _height - y;
|
|
|
|
if (dw < 1 || dh < 1) return;
|
|
|
|
begin_tft_write();
|
|
inTransaction = true;
|
|
|
|
setWindow(x, y, x + dw - 1, y + dh - 1);
|
|
|
|
data += dx + dy * w;
|
|
|
|
// Check if whole image can be pushed
|
|
if (dw == w) pushPixels(data, dw * dh);
|
|
else {
|
|
// Push line segments to crop image
|
|
while (dh--)
|
|
{
|
|
pushPixels(data, dw);
|
|
data += w;
|
|
}
|
|
}
|
|
|
|
inTransaction = false;
|
|
end_tft_write();
|
|
}
|
|
|
|
/***************************************************************************************
|
|
** Function name: pushImage
|
|
** Description: plot 16 bit sprite or image with 1 colour being transparent
|
|
***************************************************************************************/
|
|
void TFT_eSPI::pushImage(int32_t x, int32_t y, int32_t w, int32_t h, uint16_t *data, uint16_t transp)
|
|
{
|
|
|
|
if ((x >= _width) || (y >= _height)) return;
|
|
|
|
int32_t dx = 0;
|
|
int32_t dy = 0;
|
|
int32_t dw = w;
|
|
int32_t dh = h;
|
|
|
|
if (x < 0) { dw += x; dx = -x; x = 0; }
|
|
if (y < 0) { dh += y; dy = -y; y = 0; }
|
|
|
|
if ((x + dw) > _width ) dw = _width - x;
|
|
if ((y + dh) > _height) dh = _height - y;
|
|
|
|
if (dw < 1 || dh < 1) return;
|
|
|
|
begin_tft_write();
|
|
inTransaction = true;
|
|
|
|
data += dx + dy * w;
|
|
|
|
int32_t xe = x + dw - 1, ye = y + dh - 1;
|
|
|
|
uint16_t lineBuf[dw]; // Use buffer to minimise setWindow call count
|
|
|
|
// The little endian transp color must be byte swapped if the image is big endian
|
|
if (!_swapBytes) transp = transp >> 8 | transp << 8;
|
|
|
|
while (dh--)
|
|
{
|
|
int32_t len = dw;
|
|
uint16_t* ptr = data;
|
|
int32_t px = x;
|
|
bool move = true;
|
|
uint16_t np = 0;
|
|
|
|
while (len--)
|
|
{
|
|
if (transp != *ptr)
|
|
{
|
|
if (move) { move = false; setWindow(px, y, xe, ye); }
|
|
lineBuf[np] = *ptr;
|
|
np++;
|
|
}
|
|
else
|
|
{
|
|
move = true;
|
|
if (np)
|
|
{
|
|
pushPixels((uint16_t*)lineBuf, np);
|
|
np = 0;
|
|
}
|
|
}
|
|
px++;
|
|
ptr++;
|
|
}
|
|
if (np) pushPixels((uint16_t*)lineBuf, np);
|
|
|
|
y++;
|
|
data += w;
|
|
}
|
|
|
|
inTransaction = false;
|
|
end_tft_write();
|
|
}
|
|
|
|
|
|
/***************************************************************************************
|
|
** Function name: pushImage - for FLASH (PROGMEM) stored images
|
|
** Description: plot 16 bit image
|
|
***************************************************************************************/
|
|
void TFT_eSPI::pushImage(int32_t x, int32_t y, int32_t w, int32_t h, const uint16_t *data)
|
|
{
|
|
// Requires 32 bit aligned access, so use PROGMEM 16 bit word functions
|
|
if ((x >= _width) || (y >= _height)) return;
|
|
|
|
int32_t dx = 0;
|
|
int32_t dy = 0;
|
|
int32_t dw = w;
|
|
int32_t dh = h;
|
|
|
|
if (x < 0) { dw += x; dx = -x; x = 0; }
|
|
if (y < 0) { dh += y; dy = -y; y = 0; }
|
|
|
|
if ((x + dw) > _width ) dw = _width - x;
|
|
if ((y + dh) > _height) dh = _height - y;
|
|
|
|
if (dw < 1 || dh < 1) return;
|
|
|
|
begin_tft_write();
|
|
inTransaction = true;
|
|
|
|
data += dx + dy * w;
|
|
|
|
uint16_t buffer[dw];
|
|
|
|
setWindow(x, y, x + dw - 1, y + dh - 1);
|
|
|
|
// Fill and send line buffers to TFT
|
|
for (int32_t i = 0; i < dh; i++) {
|
|
for (int32_t j = 0; j < dw; j++) {
|
|
buffer[j] = pgm_read_word(&data[i * w + j]);
|
|
}
|
|
pushPixels(buffer, dw);
|
|
}
|
|
|
|
inTransaction = false;
|
|
end_tft_write();
|
|
}
|
|
|
|
|
|
/***************************************************************************************
|
|
** Function name: pushImage - for FLASH (PROGMEM) stored images
|
|
** Description: plot 16 bit image with 1 colour being transparent
|
|
***************************************************************************************/
|
|
void TFT_eSPI::pushImage(int32_t x, int32_t y, int32_t w, int32_t h, const uint16_t *data, uint16_t transp)
|
|
{
|
|
// Requires 32 bit aligned access, so use PROGMEM 16 bit word functions
|
|
if ((x >= _width) || (y >= (int32_t)_height)) return;
|
|
|
|
int32_t dx = 0;
|
|
int32_t dy = 0;
|
|
int32_t dw = w;
|
|
int32_t dh = h;
|
|
|
|
if (x < 0) { dw += x; dx = -x; x = 0; }
|
|
if (y < 0) { dh += y; dy = -y; y = 0; }
|
|
|
|
if ((x + dw) > _width ) dw = _width - x;
|
|
if ((y + dh) > _height) dh = _height - y;
|
|
|
|
if (dw < 1 || dh < 1) return;
|
|
|
|
begin_tft_write();
|
|
inTransaction = true;
|
|
|
|
data += dx + dy * w;
|
|
|
|
int32_t xe = x + dw - 1, ye = y + dh - 1;
|
|
|
|
uint16_t lineBuf[dw];
|
|
|
|
// The little endian transp color must be byte swapped if the image is big endian
|
|
if (!_swapBytes) transp = transp >> 8 | transp << 8;
|
|
|
|
while (dh--) {
|
|
int32_t len = dw;
|
|
uint16_t* ptr = (uint16_t*)data;
|
|
int32_t px = x;
|
|
bool move = true;
|
|
|
|
uint16_t np = 0;
|
|
|
|
while (len--) {
|
|
uint16_t color = pgm_read_word(ptr);
|
|
if (transp != color) {
|
|
if (move) { move = false; setWindow(px, y, xe, ye); }
|
|
lineBuf[np] = color;
|
|
np++;
|
|
}
|
|
else {
|
|
move = true;
|
|
if (np) {
|
|
pushPixels(lineBuf, np);
|
|
np = 0;
|
|
}
|
|
}
|
|
px++;
|
|
ptr++;
|
|
}
|
|
if (np) pushPixels(lineBuf, np);
|
|
|
|
y++;
|
|
data += w;
|
|
}
|
|
|
|
inTransaction = false;
|
|
end_tft_write();
|
|
}
|
|
|
|
|
|
/***************************************************************************************
|
|
** Function name: pushImage
|
|
** Description: plot 8 bit or 4 bit or 1 bit image or sprite using a line buffer
|
|
***************************************************************************************/
|
|
void TFT_eSPI::pushImage(int32_t x, int32_t y, int32_t w, int32_t h, uint8_t *data, bool bpp8, uint16_t *cmap)
|
|
{
|
|
|
|
if ((x >= _width) || (y >= (int32_t)_height)) return;
|
|
|
|
int32_t dx = 0;
|
|
int32_t dy = 0;
|
|
int32_t dw = w;
|
|
int32_t dh = h;
|
|
|
|
if (x < 0) { dw += x; dx = -x; x = 0; }
|
|
if (y < 0) { dh += y; dy = -y; y = 0; }
|
|
|
|
if ((x + dw) > _width ) dw = _width - x;
|
|
if ((y + dh) > _height) dh = _height - y;
|
|
|
|
if (dw < 1 || dh < 1) return;
|
|
|
|
begin_tft_write();
|
|
inTransaction = true;
|
|
|
|
setWindow(x, y, x + dw - 1, y + dh - 1); // Sets CS low and sent RAMWR
|
|
|
|
// Line buffer makes plotting faster
|
|
uint16_t lineBuf[dw];
|
|
|
|
if (bpp8)
|
|
{
|
|
bool swap = _swapBytes; _swapBytes = false;
|
|
|
|
uint8_t blue[] = {0, 11, 21, 31}; // blue 2 to 5 bit colour lookup table
|
|
|
|
_lastColor = -1; // Set to illegal value
|
|
|
|
// Used to store last shifted colour
|
|
uint8_t msbColor = 0;
|
|
uint8_t lsbColor = 0;
|
|
|
|
data += dx + dy * w;
|
|
while (dh--) {
|
|
uint32_t len = dw;
|
|
uint8_t* ptr = data;
|
|
uint8_t* linePtr = (uint8_t*)lineBuf;
|
|
|
|
while(len--) {
|
|
uint32_t color = *ptr++;
|
|
|
|
// Shifts are slow so check if colour has changed first
|
|
if (color != _lastColor) {
|
|
// =====Green===== ===============Red==============
|
|
msbColor = (color & 0x1C)>>2 | (color & 0xC0)>>3 | (color & 0xE0);
|
|
// =====Green===== =======Blue======
|
|
lsbColor = (color & 0x1C)<<3 | blue[color & 0x03];
|
|
_lastColor = color;
|
|
}
|
|
|
|
*linePtr++ = msbColor;
|
|
*linePtr++ = lsbColor;
|
|
}
|
|
|
|
pushPixels(lineBuf, dw);
|
|
|
|
data += w;
|
|
}
|
|
_swapBytes = swap; // Restore old value
|
|
}
|
|
else if (cmap != nullptr) // Must be 4bpp
|
|
{
|
|
bool swap = _swapBytes; _swapBytes = true;
|
|
|
|
w = (w+1) & 0xFFFE; // if this is a sprite, w will already be even; this does no harm.
|
|
bool splitFirst = (dx & 0x01) != 0; // split first means we have to push a single px from the left of the sprite / image
|
|
|
|
if (splitFirst) {
|
|
data += ((dx - 1 + dy * w) >> 1);
|
|
}
|
|
else {
|
|
data += ((dx + dy * w) >> 1);
|
|
}
|
|
|
|
while (dh--) {
|
|
uint32_t len = dw;
|
|
uint8_t * ptr = data;
|
|
uint16_t *linePtr = lineBuf;
|
|
uint8_t colors; // two colors in one byte
|
|
uint16_t index;
|
|
|
|
if (splitFirst) {
|
|
colors = *ptr;
|
|
index = (colors & 0x0F);
|
|
*linePtr++ = cmap[index];
|
|
len--;
|
|
ptr++;
|
|
}
|
|
|
|
while (len--)
|
|
{
|
|
colors = *ptr;
|
|
index = ((colors & 0xF0) >> 4) & 0x0F;
|
|
*linePtr++ = cmap[index];
|
|
|
|
if (len--)
|
|
{
|
|
index = colors & 0x0F;
|
|
*linePtr++ = cmap[index];
|
|
} else {
|
|
break; // nothing to do here
|
|
}
|
|
|
|
ptr++;
|
|
}
|
|
|
|
pushPixels(lineBuf, dw);
|
|
data += (w >> 1);
|
|
}
|
|
_swapBytes = swap; // Restore old value
|
|
}
|
|
else // Must be 1bpp
|
|
{
|
|
bool swap = _swapBytes; _swapBytes = false;
|
|
while (dh--) {
|
|
w = (w+7) & 0xFFF8;
|
|
|
|
int32_t len = dw;
|
|
uint8_t* ptr = data;
|
|
uint8_t* linePtr = (uint8_t*)lineBuf;
|
|
uint8_t bits = 8;
|
|
while(len>0) {
|
|
if (len < 8) bits = len;
|
|
uint32_t xp = dx;
|
|
for (uint16_t i = 0; i < bits; i++) {
|
|
uint8_t col = (ptr[(xp + dy * w)>>3] << (xp & 0x7)) & 0x80;
|
|
if (col) {*linePtr++ = bitmap_fg>>8; *linePtr++ = (uint8_t) bitmap_fg;}
|
|
else {*linePtr++ = bitmap_bg>>8; *linePtr++ = (uint8_t) bitmap_bg;}
|
|
//if (col) drawPixel((dw-len)+xp,h-dh,bitmap_fg);
|
|
//else drawPixel((dw-len)+xp,h-dh,bitmap_bg);
|
|
xp++;
|
|
}
|
|
ptr++;
|
|
len -= 8;
|
|
}
|
|
|
|
pushPixels(lineBuf, dw);
|
|
dy++;
|
|
}
|
|
_swapBytes = swap; // Restore old value
|
|
}
|
|
|
|
inTransaction = false;
|
|
end_tft_write();
|
|
}
|
|
|
|
|
|
/***************************************************************************************
|
|
** Function name: pushImage
|
|
** Description: plot 8 or 4 or 1 bit image or sprite with a transparent colour
|
|
***************************************************************************************/
|
|
void TFT_eSPI::pushImage(int32_t x, int32_t y, int32_t w, int32_t h, uint8_t *data, uint8_t transp, bool bpp8, uint16_t *cmap)
|
|
{
|
|
if ((x >= _width) || (y >= _height)) return;
|
|
|
|
int32_t dx = 0;
|
|
int32_t dy = 0;
|
|
int32_t dw = w;
|
|
int32_t dh = h;
|
|
|
|
if (x < 0) { dw += x; dx = -x; x = 0; }
|
|
if (y < 0) { dh += y; dy = -y; y = 0; }
|
|
|
|
if ((x + dw) > _width ) dw = _width - x;
|
|
if ((y + dh) > _height) dh = _height - y;
|
|
|
|
if (dw < 1 || dh < 1) return;
|
|
|
|
begin_tft_write();
|
|
inTransaction = true;
|
|
|
|
int32_t xe = x + dw - 1, ye = y + dh - 1;
|
|
|
|
// Line buffer makes plotting faster
|
|
uint16_t lineBuf[dw];
|
|
|
|
if (bpp8) { // 8 bits per pixel
|
|
bool swap = _swapBytes; _swapBytes = false;
|
|
|
|
data += dx + dy * w;
|
|
|
|
uint8_t blue[] = {0, 11, 21, 31}; // blue 2 to 5 bit colour lookup table
|
|
|
|
_lastColor = -1; // Set to illegal value
|
|
|
|
// Used to store last shifted colour
|
|
uint8_t msbColor = 0;
|
|
uint8_t lsbColor = 0;
|
|
|
|
//int32_t spx = x, spy = y;
|
|
|
|
while (dh--) {
|
|
int32_t len = dw;
|
|
uint8_t* ptr = data;
|
|
uint8_t* linePtr = (uint8_t*)lineBuf;
|
|
|
|
int32_t px = x;
|
|
bool move = true;
|
|
uint16_t np = 0;
|
|
|
|
while (len--) {
|
|
if (transp != *ptr) {
|
|
if (move) { move = false; setWindow(px, y, xe, ye);}
|
|
uint8_t color = *ptr;
|
|
|
|
// Shifts are slow so check if colour has changed first
|
|
if (color != _lastColor) {
|
|
// =====Green===== ===============Red==============
|
|
msbColor = (color & 0x1C)>>2 | (color & 0xC0)>>3 | (color & 0xE0);
|
|
// =====Green===== =======Blue======
|
|
lsbColor = (color & 0x1C)<<3 | blue[color & 0x03];
|
|
_lastColor = color;
|
|
}
|
|
*linePtr++ = msbColor;
|
|
*linePtr++ = lsbColor;
|
|
np++;
|
|
}
|
|
else {
|
|
move = true;
|
|
if (np) {
|
|
pushPixels(lineBuf, np);
|
|
linePtr = (uint8_t*)lineBuf;
|
|
np = 0;
|
|
}
|
|
}
|
|
px++;
|
|
ptr++;
|
|
}
|
|
|
|
if (np) pushPixels(lineBuf, np);
|
|
y++;
|
|
data += w;
|
|
}
|
|
_swapBytes = swap; // Restore old value
|
|
}
|
|
else if (cmap != nullptr) // 4bpp with color map
|
|
{
|
|
bool swap = _swapBytes; _swapBytes = true;
|
|
|
|
w = (w+1) & 0xFFFE; // here we try to recreate iwidth from dwidth.
|
|
bool splitFirst = ((dx & 0x01) != 0);
|
|
if (splitFirst) {
|
|
data += ((dx - 1 + dy * w) >> 1);
|
|
}
|
|
else {
|
|
data += ((dx + dy * w) >> 1);
|
|
}
|
|
|
|
while (dh--) {
|
|
uint32_t len = dw;
|
|
uint8_t * ptr = data;
|
|
|
|
int32_t px = x;
|
|
bool move = true;
|
|
uint16_t np = 0;
|
|
|
|
uint8_t index; // index into cmap.
|
|
|
|
if (splitFirst) {
|
|
index = (*ptr & 0x0F); // odd = bits 3 .. 0
|
|
if (index != transp) {
|
|
move = false; setWindow(px, y, xe, ye);
|
|
lineBuf[np] = cmap[index];
|
|
np++;
|
|
}
|
|
px++; ptr++;
|
|
len--;
|
|
}
|
|
|
|
while (len--)
|
|
{
|
|
uint8_t color = *ptr;
|
|
|
|
// find the actual color you care about. There will be two pixels here!
|
|
// but we may only want one at the end of the row
|
|
uint16_t index = ((color & 0xF0) >> 4) & 0x0F; // high bits are the even numbers
|
|
if (index != transp) {
|
|
if (move) {
|
|
move = false; setWindow(px, y, xe, ye);
|
|
}
|
|
lineBuf[np] = cmap[index];
|
|
np++; // added a pixel
|
|
}
|
|
else {
|
|
move = true;
|
|
if (np) {
|
|
pushPixels(lineBuf, np);
|
|
np = 0;
|
|
}
|
|
}
|
|
px++;
|
|
|
|
if (len--)
|
|
{
|
|
index = color & 0x0F; // the odd number is 3 .. 0
|
|
if (index != transp) {
|
|
if (move) {
|
|
move = false; setWindow(px, y, xe, ye);
|
|
}
|
|
lineBuf[np] = cmap[index];
|
|
np++;
|
|
}
|
|
else {
|
|
move = true;
|
|
if (np) {
|
|
pushPixels(lineBuf, np);
|
|
np = 0;
|
|
}
|
|
}
|
|
px++;
|
|
}
|
|
else {
|
|
break; // we are done with this row.
|
|
}
|
|
ptr++; // we only increment ptr once in the loop (deliberate)
|
|
}
|
|
|
|
if (np) {
|
|
pushPixels(lineBuf, np);
|
|
np = 0;
|
|
}
|
|
data += (w>>1);
|
|
y++;
|
|
}
|
|
_swapBytes = swap; // Restore old value
|
|
}
|
|
else { // 1 bit per pixel
|
|
bool swap = _swapBytes; _swapBytes = false;
|
|
w = (w+7) & 0xFFF8;
|
|
while (dh--) {
|
|
int32_t px = x;
|
|
bool move = true;
|
|
uint16_t np = 0;
|
|
int32_t len = dw;
|
|
uint8_t* ptr = data;
|
|
uint8_t bits = 8;
|
|
while(len>0) {
|
|
if (len < 8) bits = len;
|
|
uint32_t xp = dx;
|
|
uint32_t yp = (dy * w)>>3;
|
|
for (uint16_t i = 0; i < bits; i++) {
|
|
//uint8_t col = (ptr[(xp + dy * w)>>3] << (xp & 0x7)) & 0x80;
|
|
if ((ptr[(xp>>3) + yp] << (xp & 0x7)) & 0x80) {
|
|
if (move) {
|
|
move = false;
|
|
setWindow(px, y, xe, ye);
|
|
}
|
|
np++;
|
|
}
|
|
else {
|
|
if (np) {
|
|
pushBlock(bitmap_fg, np);
|
|
np = 0;
|
|
move = true;
|
|
}
|
|
}
|
|
px++;
|
|
xp++;
|
|
}
|
|
ptr++;
|
|
len -= 8;
|
|
}
|
|
|
|
if (np) pushBlock(bitmap_fg, np);
|
|
y++;
|
|
dy++;
|
|
}
|
|
_swapBytes = swap; // Restore old value
|
|
}
|
|
|
|
inTransaction = false;
|
|
end_tft_write();
|
|
}
|
|
|
|
|
|
/***************************************************************************************
|
|
** Function name: setSwapBytes
|
|
** Description: Used by 16 bit pushImage() to swap byte order in colours
|
|
***************************************************************************************/
|
|
void TFT_eSPI::setSwapBytes(bool swap)
|
|
{
|
|
_swapBytes = swap;
|
|
}
|
|
|
|
|
|
/***************************************************************************************
|
|
** Function name: getSwapBytes
|
|
** Description: Return the swap byte order for colours
|
|
***************************************************************************************/
|
|
bool TFT_eSPI::getSwapBytes(void)
|
|
{
|
|
return _swapBytes;
|
|
}
|
|
|
|
|
|
/***************************************************************************************
|
|
** Function name: read rectangle (for SPI Interface II i.e. IM [3:0] = "1101")
|
|
** Description: Read RGB pixel colours from a defined area
|
|
***************************************************************************************/
|
|
// If w and h are 1, then 1 pixel is read, *data array size must be 3 bytes per pixel
|
|
void TFT_eSPI::readRectRGB(int32_t x0, int32_t y0, int32_t w, int32_t h, uint8_t *data)
|
|
{
|
|
#if defined(TFT_PARALLEL_8_BIT)
|
|
|
|
uint32_t len = w * h;
|
|
uint8_t* buf565 = data + len;
|
|
|
|
readRect(x0, y0, w, h, (uint16_t*)buf565);
|
|
|
|
while (len--) {
|
|
uint16_t pixel565 = (*buf565++)<<8;
|
|
pixel565 |= *buf565++;
|
|
uint8_t red = (pixel565 & 0xF800) >> 8; red |= red >> 5;
|
|
uint8_t green = (pixel565 & 0x07E0) >> 3; green |= green >> 6;
|
|
uint8_t blue = (pixel565 & 0x001F) << 3; blue |= blue >> 5;
|
|
*data++ = red;
|
|
*data++ = green;
|
|
*data++ = blue;
|
|
}
|
|
|
|
#else // Not TFT_PARALLEL_8_BIT
|
|
|
|
begin_tft_read();
|
|
|
|
readAddrWindow(x0, y0, w, h); // Sets CS low
|
|
|
|
#ifdef TFT_SDA_READ
|
|
begin_SDA_Read();
|
|
#endif
|
|
|
|
// Dummy read to throw away don't care value
|
|
tft_Read_8();
|
|
|
|
// Read window pixel 24 bit RGB values, buffer must be set in sketch to 3 * w * h
|
|
uint32_t len = w * h;
|
|
while (len--) {
|
|
|
|
#if !defined (ILI9488_DRIVER)
|
|
|
|
// Read the 3 RGB bytes, colour is actually only in the top 6 bits of each byte
|
|
// as the TFT stores colours as 18 bits
|
|
*data++ = tft_Read_8();
|
|
*data++ = tft_Read_8();
|
|
*data++ = tft_Read_8();
|
|
|
|
#else
|
|
|
|
// The 6 colour bits are in MS 6 bits of each byte, but the ILI9488 needs an extra clock pulse
|
|
// so bits appear shifted right 1 bit, so mask the middle 6 bits then shift 1 place left
|
|
*data++ = (tft_Read_8()&0x7E)<<1;
|
|
*data++ = (tft_Read_8()&0x7E)<<1;
|
|
*data++ = (tft_Read_8()&0x7E)<<1;
|
|
|
|
#endif
|
|
|
|
}
|
|
|
|
CS_H;
|
|
|
|
#ifdef TFT_SDA_READ
|
|
end_SDA_Read();
|
|
#endif
|
|
|
|
end_tft_read();
|
|
|
|
#endif
|
|
}
|
|
|
|
|
|
/***************************************************************************************
|
|
** Function name: drawCircle
|
|
** Description: Draw a circle outline
|
|
***************************************************************************************/
|
|
// Optimised midpoint circle algorithm
|
|
void TFT_eSPI::drawCircle(int32_t x0, int32_t y0, int32_t r, uint32_t color)
|
|
{
|
|
int32_t x = 1;
|
|
int32_t dx = 1;
|
|
int32_t dy = r+r;
|
|
int32_t p = -(r>>1);
|
|
|
|
//begin_tft_write(); // Sprite class can use this function, avoiding begin_tft_write()
|
|
inTransaction = true;
|
|
|
|
// These are ordered to minimise coordinate changes in x or y
|
|
// drawPixel can then send fewer bounding box commands
|
|
drawPixel(x0 + r, y0, color);
|
|
drawPixel(x0 - r, y0, color);
|
|
drawPixel(x0, y0 - r, color);
|
|
drawPixel(x0, y0 + r, color);
|
|
|
|
while(x<r){
|
|
|
|
if(p>=0) {
|
|
dy-=2;
|
|
p-=dy;
|
|
r--;
|
|
}
|
|
|
|
dx+=2;
|
|
p+=dx;
|
|
|
|
// These are ordered to minimise coordinate changes in x or y
|
|
// drawPixel can then send fewer bounding box commands
|
|
drawPixel(x0 + x, y0 + r, color);
|
|
drawPixel(x0 - x, y0 + r, color);
|
|
drawPixel(x0 - x, y0 - r, color);
|
|
drawPixel(x0 + x, y0 - r, color);
|
|
if (r != x) {
|
|
drawPixel(x0 + r, y0 + x, color);
|
|
drawPixel(x0 - r, y0 + x, color);
|
|
drawPixel(x0 - r, y0 - x, color);
|
|
drawPixel(x0 + r, y0 - x, color);
|
|
}
|
|
x++;
|
|
}
|
|
|
|
inTransaction = false;
|
|
end_tft_write(); // Does nothing if Sprite class uses this function
|
|
}
|
|
|
|
|
|
/***************************************************************************************
|
|
** Function name: drawCircleHelper
|
|
** Description: Support function for drawRoundRect()
|
|
***************************************************************************************/
|
|
void TFT_eSPI::drawCircleHelper( int32_t x0, int32_t y0, int32_t r, uint8_t cornername, uint32_t color)
|
|
{
|
|
int32_t f = 1 - r;
|
|
int32_t ddF_x = 1;
|
|
int32_t ddF_y = -2 * r;
|
|
int32_t x = 0;
|
|
|
|
while (x < r) {
|
|
if (f >= 0) {
|
|
r--;
|
|
ddF_y += 2;
|
|
f += ddF_y;
|
|
}
|
|
x++;
|
|
ddF_x += 2;
|
|
f += ddF_x;
|
|
if (cornername & 0x4) {
|
|
drawPixel(x0 + x, y0 + r, color);
|
|
drawPixel(x0 + r, y0 + x, color);
|
|
}
|
|
if (cornername & 0x2) {
|
|
drawPixel(x0 + x, y0 - r, color);
|
|
drawPixel(x0 + r, y0 - x, color);
|
|
}
|
|
if (cornername & 0x8) {
|
|
drawPixel(x0 - r, y0 + x, color);
|
|
drawPixel(x0 - x, y0 + r, color);
|
|
}
|
|
if (cornername & 0x1) {
|
|
drawPixel(x0 - r, y0 - x, color);
|
|
drawPixel(x0 - x, y0 - r, color);
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
/***************************************************************************************
|
|
** Function name: fillCircle
|
|
** Description: draw a filled circle
|
|
***************************************************************************************/
|
|
// Optimised midpoint circle algorithm, changed to horizontal lines (faster in sprites)
|
|
// Improved algorithm avoids repetition of lines
|
|
void TFT_eSPI::fillCircle(int32_t x0, int32_t y0, int32_t r, uint32_t color)
|
|
{
|
|
int32_t x = 0;
|
|
int32_t dx = 1;
|
|
int32_t dy = r+r;
|
|
int32_t p = -(r>>1);
|
|
|
|
//begin_tft_write(); // Sprite class can use this function, avoiding begin_tft_write()
|
|
inTransaction = true;
|
|
|
|
drawFastHLine(x0 - r, y0, dy+1, color);
|
|
|
|
while(x<r){
|
|
|
|
if(p>=0) {
|
|
drawFastHLine(x0 - x + 1, y0 + r, dx-1, color);
|
|
drawFastHLine(x0 - x + 1, y0 - r, dx-1, color);
|
|
dy-=2;
|
|
p-=dy;
|
|
r--;
|
|
}
|
|
|
|
dx+=2;
|
|
p+=dx;
|
|
x++;
|
|
|
|
drawFastHLine(x0 - r, y0 + x, dy+1, color);
|
|
drawFastHLine(x0 - r, y0 - x, dy+1, color);
|
|
|
|
}
|
|
|
|
inTransaction = false;
|
|
end_tft_write(); // Does nothing if Sprite class uses this function
|
|
}
|
|
|
|
|
|
/***************************************************************************************
|
|
** Function name: fillCircleHelper
|
|
** Description: Support function for fillRoundRect()
|
|
***************************************************************************************/
|
|
// Support drawing roundrects, changed to horizontal lines (faster in sprites)
|
|
void TFT_eSPI::fillCircleHelper(int32_t x0, int32_t y0, int32_t r, uint8_t cornername, int32_t delta, uint32_t color)
|
|
{
|
|
int32_t f = 1 - r;
|
|
int32_t ddF_x = 1;
|
|
int32_t ddF_y = -r - r;
|
|
int32_t y = 0;
|
|
|
|
delta++;
|
|
|
|
while (y < r) {
|
|
if (f >= 0) {
|
|
if (cornername & 0x1) drawFastHLine(x0 - y, y0 + r, y + y + delta, color);
|
|
if (cornername & 0x2) drawFastHLine(x0 - y, y0 - r, y + y + delta, color);
|
|
r--;
|
|
ddF_y += 2;
|
|
f += ddF_y;
|
|
}
|
|
|
|
y++;
|
|
ddF_x += 2;
|
|
f += ddF_x;
|
|
|
|
if (cornername & 0x1) drawFastHLine(x0 - r, y0 + y, r + r + delta, color);
|
|
if (cornername & 0x2) drawFastHLine(x0 - r, y0 - y, r + r + delta, color);
|
|
}
|
|
}
|
|
|
|
|
|
/***************************************************************************************
|
|
** Function name: drawEllipse
|
|
** Description: Draw a ellipse outline
|
|
***************************************************************************************/
|
|
void TFT_eSPI::drawEllipse(int16_t x0, int16_t y0, int32_t rx, int32_t ry, uint16_t color)
|
|
{
|
|
if (rx<2) return;
|
|
if (ry<2) return;
|
|
int32_t x, y;
|
|
int32_t rx2 = rx * rx;
|
|
int32_t ry2 = ry * ry;
|
|
int32_t fx2 = 4 * rx2;
|
|
int32_t fy2 = 4 * ry2;
|
|
int32_t s;
|
|
|
|
//begin_tft_write(); // Sprite class can use this function, avoiding begin_tft_write()
|
|
inTransaction = true;
|
|
|
|
for (x = 0, y = ry, s = 2*ry2+rx2*(1-2*ry); ry2*x <= rx2*y; x++) {
|
|
// These are ordered to minimise coordinate changes in x or y
|
|
// drawPixel can then send fewer bounding box commands
|
|
drawPixel(x0 + x, y0 + y, color);
|
|
drawPixel(x0 - x, y0 + y, color);
|
|
drawPixel(x0 - x, y0 - y, color);
|
|
drawPixel(x0 + x, y0 - y, color);
|
|
if (s >= 0) {
|
|
s += fx2 * (1 - y);
|
|
y--;
|
|
}
|
|
s += ry2 * ((4 * x) + 6);
|
|
}
|
|
|
|
for (x = rx, y = 0, s = 2*rx2+ry2*(1-2*rx); rx2*y <= ry2*x; y++) {
|
|
// These are ordered to minimise coordinate changes in x or y
|
|
// drawPixel can then send fewer bounding box commands
|
|
drawPixel(x0 + x, y0 + y, color);
|
|
drawPixel(x0 - x, y0 + y, color);
|
|
drawPixel(x0 - x, y0 - y, color);
|
|
drawPixel(x0 + x, y0 - y, color);
|
|
if (s >= 0)
|
|
{
|
|
s += fy2 * (1 - x);
|
|
x--;
|
|
}
|
|
s += rx2 * ((4 * y) + 6);
|
|
}
|
|
|
|
inTransaction = false;
|
|
end_tft_write(); // Does nothing if Sprite class uses this function
|
|
}
|
|
|
|
|
|
/***************************************************************************************
|
|
** Function name: fillEllipse
|
|
** Description: draw a filled ellipse
|
|
***************************************************************************************/
|
|
void TFT_eSPI::fillEllipse(int16_t x0, int16_t y0, int32_t rx, int32_t ry, uint16_t color)
|
|
{
|
|
if (rx<2) return;
|
|
if (ry<2) return;
|
|
int32_t x, y;
|
|
int32_t rx2 = rx * rx;
|
|
int32_t ry2 = ry * ry;
|
|
int32_t fx2 = 4 * rx2;
|
|
int32_t fy2 = 4 * ry2;
|
|
int32_t s;
|
|
|
|
//begin_tft_write(); // Sprite class can use this function, avoiding begin_tft_write()
|
|
inTransaction = true;
|
|
|
|
for (x = 0, y = ry, s = 2*ry2+rx2*(1-2*ry); ry2*x <= rx2*y; x++) {
|
|
drawFastHLine(x0 - x, y0 - y, x + x + 1, color);
|
|
drawFastHLine(x0 - x, y0 + y, x + x + 1, color);
|
|
|
|
if (s >= 0) {
|
|
s += fx2 * (1 - y);
|
|
y--;
|
|
}
|
|
s += ry2 * ((4 * x) + 6);
|
|
}
|
|
|
|
for (x = rx, y = 0, s = 2*rx2+ry2*(1-2*rx); rx2*y <= ry2*x; y++) {
|
|
drawFastHLine(x0 - x, y0 - y, x + x + 1, color);
|
|
drawFastHLine(x0 - x, y0 + y, x + x + 1, color);
|
|
|
|
if (s >= 0) {
|
|
s += fy2 * (1 - x);
|
|
x--;
|
|
}
|
|
s += rx2 * ((4 * y) + 6);
|
|
}
|
|
|
|
inTransaction = false;
|
|
end_tft_write(); // Does nothing if Sprite class uses this function
|
|
}
|
|
|
|
|
|
/***************************************************************************************
|
|
** Function name: fillScreen
|
|
** Description: Clear the screen to defined colour
|
|
***************************************************************************************/
|
|
void TFT_eSPI::fillScreen(uint32_t color)
|
|
{
|
|
fillRect(0, 0, _width, _height, color);
|
|
}
|
|
|
|
|
|
/***************************************************************************************
|
|
** Function name: drawRect
|
|
** Description: Draw a rectangle outline
|
|
***************************************************************************************/
|
|
// Draw a rectangle
|
|
void TFT_eSPI::drawRect(int32_t x, int32_t y, int32_t w, int32_t h, uint32_t color)
|
|
{
|
|
//begin_tft_write(); // Sprite class can use this function, avoiding begin_tft_write()
|
|
inTransaction = true;
|
|
|
|
drawFastHLine(x, y, w, color);
|
|
drawFastHLine(x, y + h - 1, w, color);
|
|
// Avoid drawing corner pixels twice
|
|
drawFastVLine(x, y+1, h-2, color);
|
|
drawFastVLine(x + w - 1, y+1, h-2, color);
|
|
|
|
inTransaction = false;
|
|
end_tft_write(); // Does nothing if Sprite class uses this function
|
|
}
|
|
|
|
|
|
/***************************************************************************************
|
|
** Function name: drawRoundRect
|
|
** Description: Draw a rounded corner rectangle outline
|
|
***************************************************************************************/
|
|
// Draw a rounded rectangle
|
|
void TFT_eSPI::drawRoundRect(int32_t x, int32_t y, int32_t w, int32_t h, int32_t r, uint32_t color)
|
|
{
|
|
//begin_tft_write(); // Sprite class can use this function, avoiding begin_tft_write()
|
|
inTransaction = true;
|
|
|
|
// smarter version
|
|
drawFastHLine(x + r , y , w - r - r, color); // Top
|
|
drawFastHLine(x + r , y + h - 1, w - r - r, color); // Bottom
|
|
drawFastVLine(x , y + r , h - r - r, color); // Left
|
|
drawFastVLine(x + w - 1, y + r , h - r - r, color); // Right
|
|
// draw four corners
|
|
drawCircleHelper(x + r , y + r , r, 1, color);
|
|
drawCircleHelper(x + w - r - 1, y + r , r, 2, color);
|
|
drawCircleHelper(x + w - r - 1, y + h - r - 1, r, 4, color);
|
|
drawCircleHelper(x + r , y + h - r - 1, r, 8, color);
|
|
|
|
inTransaction = false;
|
|
end_tft_write(); // Does nothing if Sprite class uses this function
|
|
}
|
|
|
|
|
|
/***************************************************************************************
|
|
** Function name: fillRoundRect
|
|
** Description: Draw a rounded corner filled rectangle
|
|
***************************************************************************************/
|
|
// Fill a rounded rectangle, changed to horizontal lines (faster in sprites)
|
|
void TFT_eSPI::fillRoundRect(int32_t x, int32_t y, int32_t w, int32_t h, int32_t r, uint32_t color)
|
|
{
|
|
//begin_tft_write(); // Sprite class can use this function, avoiding begin_tft_write()
|
|
inTransaction = true;
|
|
|
|
// smarter version
|
|
fillRect(x, y + r, w, h - r - r, color);
|
|
|
|
// draw four corners
|
|
fillCircleHelper(x + r, y + h - r - 1, r, 1, w - r - r - 1, color);
|
|
fillCircleHelper(x + r , y + r, r, 2, w - r - r - 1, color);
|
|
|
|
inTransaction = false;
|
|
end_tft_write(); // Does nothing if Sprite class uses this function
|
|
}
|
|
|
|
|
|
/***************************************************************************************
|
|
** Function name: drawTriangle
|
|
** Description: Draw a triangle outline using 3 arbitrary points
|
|
***************************************************************************************/
|
|
// Draw a triangle
|
|
void TFT_eSPI::drawTriangle(int32_t x0, int32_t y0, int32_t x1, int32_t y1, int32_t x2, int32_t y2, uint32_t color)
|
|
{
|
|
//begin_tft_write(); // Sprite class can use this function, avoiding begin_tft_write()
|
|
inTransaction = true;
|
|
|
|
drawLine(x0, y0, x1, y1, color);
|
|
drawLine(x1, y1, x2, y2, color);
|
|
drawLine(x2, y2, x0, y0, color);
|
|
|
|
inTransaction = false;
|
|
end_tft_write(); // Does nothing if Sprite class uses this function
|
|
}
|
|
|
|
|
|
/***************************************************************************************
|
|
** Function name: fillTriangle
|
|
** Description: Draw a filled triangle using 3 arbitrary points
|
|
***************************************************************************************/
|
|
// Fill a triangle - original Adafruit function works well and code footprint is small
|
|
void TFT_eSPI::fillTriangle ( int32_t x0, int32_t y0, int32_t x1, int32_t y1, int32_t x2, int32_t y2, uint32_t color)
|
|
{
|
|
int32_t a, b, y, last;
|
|
|
|
// Sort coordinates by Y order (y2 >= y1 >= y0)
|
|
if (y0 > y1) {
|
|
swap_coord(y0, y1); swap_coord(x0, x1);
|
|
}
|
|
if (y1 > y2) {
|
|
swap_coord(y2, y1); swap_coord(x2, x1);
|
|
}
|
|
if (y0 > y1) {
|
|
swap_coord(y0, y1); swap_coord(x0, x1);
|
|
}
|
|
|
|
if (y0 == y2) { // Handle awkward all-on-same-line case as its own thing
|
|
a = b = x0;
|
|
if (x1 < a) a = x1;
|
|
else if (x1 > b) b = x1;
|
|
if (x2 < a) a = x2;
|
|
else if (x2 > b) b = x2;
|
|
drawFastHLine(a, y0, b - a + 1, color);
|
|
return;
|
|
}
|
|
|
|
//begin_tft_write(); // Sprite class can use this function, avoiding begin_tft_write()
|
|
inTransaction = true;
|
|
|
|
int32_t
|
|
dx01 = x1 - x0,
|
|
dy01 = y1 - y0,
|
|
dx02 = x2 - x0,
|
|
dy02 = y2 - y0,
|
|
dx12 = x2 - x1,
|
|
dy12 = y2 - y1,
|
|
sa = 0,
|
|
sb = 0;
|
|
|
|
// For upper part of triangle, find scanline crossings for segments
|
|
// 0-1 and 0-2. If y1=y2 (flat-bottomed triangle), the scanline y1
|
|
// is included here (and second loop will be skipped, avoiding a /0
|
|
// error there), otherwise scanline y1 is skipped here and handled
|
|
// in the second loop...which also avoids a /0 error here if y0=y1
|
|
// (flat-topped triangle).
|
|
if (y1 == y2) last = y1; // Include y1 scanline
|
|
else last = y1 - 1; // Skip it
|
|
|
|
for (y = y0; y <= last; y++) {
|
|
a = x0 + sa / dy01;
|
|
b = x0 + sb / dy02;
|
|
sa += dx01;
|
|
sb += dx02;
|
|
|
|
if (a > b) swap_coord(a, b);
|
|
drawFastHLine(a, y, b - a + 1, color);
|
|
}
|
|
|
|
// For lower part of triangle, find scanline crossings for segments
|
|
// 0-2 and 1-2. This loop is skipped if y1=y2.
|
|
sa = dx12 * (y - y1);
|
|
sb = dx02 * (y - y0);
|
|
for (; y <= y2; y++) {
|
|
a = x1 + sa / dy12;
|
|
b = x0 + sb / dy02;
|
|
sa += dx12;
|
|
sb += dx02;
|
|
|
|
if (a > b) swap_coord(a, b);
|
|
drawFastHLine(a, y, b - a + 1, color);
|
|
}
|
|
|
|
inTransaction = false;
|
|
end_tft_write(); // Does nothing if Sprite class uses this function
|
|
}
|
|
|
|
|
|
/***************************************************************************************
|
|
** Function name: drawBitmap
|
|
** Description: Draw an image stored in an array on the TFT
|
|
***************************************************************************************/
|
|
void TFT_eSPI::drawBitmap(int16_t x, int16_t y, const uint8_t *bitmap, int16_t w, int16_t h, uint16_t color)
|
|
{
|
|
//begin_tft_write(); // Sprite class can use this function, avoiding begin_tft_write()
|
|
inTransaction = true;
|
|
|
|
int32_t i, j, byteWidth = (w + 7) / 8;
|
|
|
|
for (j = 0; j < h; j++) {
|
|
for (i = 0; i < w; i++ ) {
|
|
if (pgm_read_byte(bitmap + j * byteWidth + i / 8) & (128 >> (i & 7))) {
|
|
drawPixel(x + i, y + j, color);
|
|
}
|
|
}
|
|
}
|
|
|
|
inTransaction = false;
|
|
end_tft_write(); // Does nothing if Sprite class uses this function
|
|
}
|
|
|
|
|
|
/***************************************************************************************
|
|
** Function name: drawBitmap
|
|
** Description: Draw an image stored in an array on the TFT
|
|
***************************************************************************************/
|
|
void TFT_eSPI::drawBitmap(int16_t x, int16_t y, const uint8_t *bitmap, int16_t w, int16_t h, uint16_t fgcolor, uint16_t bgcolor)
|
|
{
|
|
//begin_tft_write(); // Sprite class can use this function, avoiding begin_tft_write()
|
|
inTransaction = true;
|
|
|
|
int32_t i, j, byteWidth = (w + 7) / 8;
|
|
|
|
for (j = 0; j < h; j++) {
|
|
for (i = 0; i < w; i++ ) {
|
|
if (pgm_read_byte(bitmap + j * byteWidth + i / 8) & (128 >> (i & 7)))
|
|
drawPixel(x + i, y + j, fgcolor);
|
|
else drawPixel(x + i, y + j, bgcolor);
|
|
}
|
|
}
|
|
|
|
inTransaction = false;
|
|
end_tft_write(); // Does nothing if Sprite class uses this function
|
|
}
|
|
|
|
/***************************************************************************************
|
|
** Function name: drawXBitmap
|
|
** Description: Draw an image stored in an XBM array onto the TFT
|
|
***************************************************************************************/
|
|
void TFT_eSPI::drawXBitmap(int16_t x, int16_t y, const uint8_t *bitmap, int16_t w, int16_t h, uint16_t color)
|
|
{
|
|
//begin_tft_write(); // Sprite class can use this function, avoiding begin_tft_write()
|
|
inTransaction = true;
|
|
|
|
int32_t i, j, byteWidth = (w + 7) / 8;
|
|
|
|
for (j = 0; j < h; j++) {
|
|
for (i = 0; i < w; i++ ) {
|
|
if (pgm_read_byte(bitmap + j * byteWidth + i / 8) & (1 << (i & 7))) {
|
|
drawPixel(x + i, y + j, color);
|
|
}
|
|
}
|
|
}
|
|
|
|
inTransaction = false;
|
|
end_tft_write(); // Does nothing if Sprite class uses this function
|
|
}
|
|
|
|
|
|
/***************************************************************************************
|
|
** Function name: drawXBitmap
|
|
** Description: Draw an XBM image with foreground and background colors
|
|
***************************************************************************************/
|
|
void TFT_eSPI::drawXBitmap(int16_t x, int16_t y, const uint8_t *bitmap, int16_t w, int16_t h, uint16_t color, uint16_t bgcolor)
|
|
{
|
|
//begin_tft_write(); // Sprite class can use this function, avoiding begin_tft_write()
|
|
inTransaction = true;
|
|
|
|
int32_t i, j, byteWidth = (w + 7) / 8;
|
|
|
|
for (j = 0; j < h; j++) {
|
|
for (i = 0; i < w; i++ ) {
|
|
if (pgm_read_byte(bitmap + j * byteWidth + i / 8) & (1 << (i & 7)))
|
|
drawPixel(x + i, y + j, color);
|
|
else drawPixel(x + i, y + j, bgcolor);
|
|
}
|
|
}
|
|
|
|
inTransaction = false;
|
|
end_tft_write(); // Does nothing if Sprite class uses this function
|
|
}
|
|
|
|
|
|
/***************************************************************************************
|
|
** Function name: setCursor
|
|
** Description: Set the text cursor x,y position
|
|
***************************************************************************************/
|
|
void TFT_eSPI::setCursor(int16_t x, int16_t y)
|
|
{
|
|
cursor_x = x;
|
|
cursor_y = y;
|
|
}
|
|
|
|
|
|
/***************************************************************************************
|
|
** Function name: setCursor
|
|
** Description: Set the text cursor x,y position and font
|
|
***************************************************************************************/
|
|
void TFT_eSPI::setCursor(int16_t x, int16_t y, uint8_t font)
|
|
{
|
|
textfont = font;
|
|
cursor_x = x;
|
|
cursor_y = y;
|
|
}
|
|
|
|
|
|
/***************************************************************************************
|
|
** Function name: getCursorX
|
|
** Description: Get the text cursor x position
|
|
***************************************************************************************/
|
|
int16_t TFT_eSPI::getCursorX(void)
|
|
{
|
|
return cursor_x;
|
|
}
|
|
|
|
/***************************************************************************************
|
|
** Function name: getCursorY
|
|
** Description: Get the text cursor y position
|
|
***************************************************************************************/
|
|
int16_t TFT_eSPI::getCursorY(void)
|
|
{
|
|
return cursor_y;
|
|
}
|
|
|
|
|
|
/***************************************************************************************
|
|
** Function name: setTextSize
|
|
** Description: Set the text size multiplier
|
|
***************************************************************************************/
|
|
void TFT_eSPI::setTextSize(uint8_t s)
|
|
{
|
|
if (s>7) s = 7; // Limit the maximum size multiplier so byte variables can be used for rendering
|
|
textsize = (s > 0) ? s : 1; // Don't allow font size 0
|
|
}
|
|
|
|
|
|
/***************************************************************************************
|
|
** Function name: setTextColor
|
|
** Description: Set the font foreground colour (background is transparent)
|
|
***************************************************************************************/
|
|
void TFT_eSPI::setTextColor(uint16_t c)
|
|
{
|
|
// For 'transparent' background, we'll set the bg
|
|
// to the same as fg instead of using a flag
|
|
textcolor = textbgcolor = c;
|
|
}
|
|
|
|
|
|
/***************************************************************************************
|
|
** Function name: setTextColor
|
|
** Description: Set the font foreground and background colour
|
|
***************************************************************************************/
|
|
void TFT_eSPI::setTextColor(uint16_t c, uint16_t b)
|
|
{
|
|
textcolor = c;
|
|
textbgcolor = b;
|
|
}
|
|
|
|
|
|
/***************************************************************************************
|
|
** Function name: setPivot
|
|
** Description: Set the pivot point on the TFT
|
|
*************************************************************************************x*/
|
|
void TFT_eSPI::setPivot(int16_t x, int16_t y)
|
|
{
|
|
_xpivot = x;
|
|
_ypivot = y;
|
|
}
|
|
|
|
|
|
/***************************************************************************************
|
|
** Function name: getPivotX
|
|
** Description: Get the x pivot position
|
|
***************************************************************************************/
|
|
int16_t TFT_eSPI::getPivotX(void)
|
|
{
|
|
return _xpivot;
|
|
}
|
|
|
|
|
|
/***************************************************************************************
|
|
** Function name: getPivotY
|
|
** Description: Get the y pivot position
|
|
***************************************************************************************/
|
|
int16_t TFT_eSPI::getPivotY(void)
|
|
{
|
|
return _ypivot;
|
|
}
|
|
|
|
|
|
/***************************************************************************************
|
|
** Function name: setBitmapColor
|
|
** Description: Set the foreground foreground and background colour
|
|
***************************************************************************************/
|
|
void TFT_eSPI::setBitmapColor(uint16_t c, uint16_t b)
|
|
{
|
|
if (c == b) b = ~c;
|
|
bitmap_fg = c;
|
|
bitmap_bg = b;
|
|
}
|
|
|
|
|
|
/***************************************************************************************
|
|
** Function name: setTextWrap
|
|
** Description: Define if text should wrap at end of line
|
|
***************************************************************************************/
|
|
void TFT_eSPI::setTextWrap(bool wrapX, bool wrapY)
|
|
{
|
|
textwrapX = wrapX;
|
|
textwrapY = wrapY;
|
|
}
|
|
|
|
|
|
/***************************************************************************************
|
|
** Function name: setTextDatum
|
|
** Description: Set the text position reference datum
|
|
***************************************************************************************/
|
|
void TFT_eSPI::setTextDatum(uint8_t d)
|
|
{
|
|
textdatum = d;
|
|
}
|
|
|
|
|
|
/***************************************************************************************
|
|
** Function name: setTextPadding
|
|
** Description: Define padding width (aids erasing old text and numbers)
|
|
***************************************************************************************/
|
|
void TFT_eSPI::setTextPadding(uint16_t x_width)
|
|
{
|
|
padX = x_width;
|
|
}
|
|
|
|
/***************************************************************************************
|
|
** Function name: setTextPadding
|
|
** Description: Define padding width (aids erasing old text and numbers)
|
|
***************************************************************************************/
|
|
uint16_t TFT_eSPI::getTextPadding(void)
|
|
{
|
|
return padX;
|
|
}
|
|
|
|
/***************************************************************************************
|
|
** Function name: getRotation
|
|
** Description: Return the rotation value (as used by setRotation())
|
|
***************************************************************************************/
|
|
uint8_t TFT_eSPI::getRotation(void)
|
|
{
|
|
return rotation;
|
|
}
|
|
|
|
/***************************************************************************************
|
|
** Function name: getTextDatum
|
|
** Description: Return the text datum value (as used by setTextDatum())
|
|
***************************************************************************************/
|
|
uint8_t TFT_eSPI::getTextDatum(void)
|
|
{
|
|
return textdatum;
|
|
}
|
|
|
|
|
|
/***************************************************************************************
|
|
** Function name: width
|
|
** Description: Return the pixel width of display (per current rotation)
|
|
***************************************************************************************/
|
|
// Return the size of the display (per current rotation)
|
|
int16_t TFT_eSPI::width(void)
|
|
{
|
|
return _width;
|
|
}
|
|
|
|
|
|
/***************************************************************************************
|
|
** Function name: height
|
|
** Description: Return the pixel height of display (per current rotation)
|
|
***************************************************************************************/
|
|
int16_t TFT_eSPI::height(void)
|
|
{
|
|
return _height;
|
|
}
|
|
|
|
|
|
/***************************************************************************************
|
|
** Function name: textWidth
|
|
** Description: Return the width in pixels of a string in a given font
|
|
***************************************************************************************/
|
|
int16_t TFT_eSPI::textWidth(const String& string)
|
|
{
|
|
int16_t len = string.length() + 2;
|
|
char buffer[len];
|
|
string.toCharArray(buffer, len);
|
|
return textWidth(buffer, textfont);
|
|
}
|
|
|
|
int16_t TFT_eSPI::textWidth(const String& string, uint8_t font)
|
|
{
|
|
int16_t len = string.length() + 2;
|
|
char buffer[len];
|
|
string.toCharArray(buffer, len);
|
|
return textWidth(buffer, font);
|
|
}
|
|
|
|
int16_t TFT_eSPI::textWidth(const char *string)
|
|
{
|
|
return textWidth(string, textfont);
|
|
}
|
|
|
|
int16_t TFT_eSPI::textWidth(const char *string, uint8_t font)
|
|
{
|
|
int32_t str_width = 0;
|
|
uint16_t uniCode = 0;
|
|
|
|
#ifdef SMOOTH_FONT
|
|
if(fontLoaded) {
|
|
while (*string) {
|
|
uniCode = decodeUTF8(*string++);
|
|
if (uniCode) {
|
|
if (uniCode == 0x20) str_width += gFont.spaceWidth;
|
|
else {
|
|
uint16_t gNum = 0;
|
|
bool found = getUnicodeIndex(uniCode, &gNum);
|
|
if (found) {
|
|
if(str_width == 0 && gdX[gNum] < 0) str_width -= gdX[gNum];
|
|
if (*string || isDigits) str_width += gxAdvance[gNum];
|
|
else str_width += (gdX[gNum] + gWidth[gNum]);
|
|
}
|
|
else str_width += gFont.spaceWidth + 1;
|
|
}
|
|
}
|
|
}
|
|
isDigits = false;
|
|
return str_width;
|
|
}
|
|
#endif
|
|
|
|
if (font>1 && font<9) {
|
|
char *widthtable = (char *)pgm_read_dword( &(fontdata[font].widthtbl ) ) - 32; //subtract the 32 outside the loop
|
|
|
|
while (*string) {
|
|
uniCode = *(string++);
|
|
if (uniCode > 31 && uniCode < 128)
|
|
str_width += pgm_read_byte( widthtable + uniCode); // Normally we need to subtract 32 from uniCode
|
|
else str_width += pgm_read_byte( widthtable + 32); // Set illegal character = space width
|
|
}
|
|
|
|
}
|
|
else {
|
|
|
|
#ifdef LOAD_GFXFF
|
|
if(gfxFont) { // New font
|
|
while (*string) {
|
|
uniCode = decodeUTF8(*string++);
|
|
if ((uniCode >= pgm_read_word(&gfxFont->first)) && (uniCode <= pgm_read_word(&gfxFont->last ))) {
|
|
uniCode -= pgm_read_word(&gfxFont->first);
|
|
GFXglyph *glyph = &(((GFXglyph *)pgm_read_dword(&gfxFont->glyph))[uniCode]);
|
|
// If this is not the last character or is a digit then use xAdvance
|
|
if (*string || isDigits) str_width += pgm_read_byte(&glyph->xAdvance);
|
|
// Else use the offset plus width since this can be bigger than xAdvance
|
|
else str_width += ((int8_t)pgm_read_byte(&glyph->xOffset) + pgm_read_byte(&glyph->width));
|
|
}
|
|
}
|
|
}
|
|
else
|
|
#endif
|
|
{
|
|
#ifdef LOAD_GLCD
|
|
while (*string++) str_width += 6;
|
|
#endif
|
|
}
|
|
}
|
|
isDigits = false;
|
|
return str_width * textsize;
|
|
}
|
|
|
|
|
|
/***************************************************************************************
|
|
** Function name: fontsLoaded
|
|
** Description: return an encoded 16 bit value showing the fonts loaded
|
|
***************************************************************************************/
|
|
// Returns a value showing which fonts are loaded (bit N set = Font N loaded)
|
|
|
|
uint16_t TFT_eSPI::fontsLoaded(void)
|
|
{
|
|
return fontsloaded;
|
|
}
|
|
|
|
|
|
/***************************************************************************************
|
|
** Function name: fontHeight
|
|
** Description: return the height of a font (yAdvance for free fonts)
|
|
***************************************************************************************/
|
|
int16_t TFT_eSPI::fontHeight(int16_t font)
|
|
{
|
|
#ifdef SMOOTH_FONT
|
|
if(fontLoaded) return gFont.yAdvance;
|
|
#endif
|
|
|
|
#ifdef LOAD_GFXFF
|
|
if (font==1) {
|
|
if(gfxFont) { // New font
|
|
return pgm_read_byte(&gfxFont->yAdvance) * textsize;
|
|
}
|
|
}
|
|
#endif
|
|
return pgm_read_byte( &fontdata[font].height ) * textsize;
|
|
}
|
|
|
|
int16_t TFT_eSPI::fontHeight(void)
|
|
{
|
|
return fontHeight(textfont);
|
|
}
|
|
|
|
/***************************************************************************************
|
|
** Function name: drawChar
|
|
** Description: draw a single character in the GLCD or GFXFF font
|
|
***************************************************************************************/
|
|
void TFT_eSPI::drawChar(int32_t x, int32_t y, uint16_t c, uint32_t color, uint32_t bg, uint8_t size)
|
|
{
|
|
if ((x >= _width) || // Clip right
|
|
(y >= _height) || // Clip bottom
|
|
((x + 6 * size - 1) < 0) || // Clip left
|
|
((y + 8 * size - 1) < 0)) // Clip top
|
|
return;
|
|
|
|
if (c < 32) return;
|
|
#ifdef LOAD_GLCD
|
|
//>>>>>>>>>>>>>>>>>>
|
|
#ifdef LOAD_GFXFF
|
|
if(!gfxFont) { // 'Classic' built-in font
|
|
#endif
|
|
//>>>>>>>>>>>>>>>>>>
|
|
|
|
bool fillbg = (bg != color);
|
|
|
|
if ((size==1) && fillbg) {
|
|
uint8_t column[6];
|
|
uint8_t mask = 0x1;
|
|
begin_tft_write();
|
|
|
|
setWindow(x, y, x+5, y+8);
|
|
|
|
for (int8_t i = 0; i < 5; i++ ) column[i] = pgm_read_byte(font + (c * 5) + i);
|
|
column[5] = 0;
|
|
|
|
for (int8_t j = 0; j < 8; j++) {
|
|
for (int8_t k = 0; k < 5; k++ ) {
|
|
if (column[k] & mask) {tft_Write_16(color);}
|
|
else {tft_Write_16(bg);}
|
|
}
|
|
mask <<= 1;
|
|
tft_Write_16(bg);
|
|
}
|
|
|
|
end_tft_write();
|
|
}
|
|
else {
|
|
//begin_tft_write(); // Sprite class can use this function, avoiding begin_tft_write()
|
|
inTransaction = true;
|
|
for (int8_t i = 0; i < 6; i++ ) {
|
|
uint8_t line;
|
|
if (i == 5)
|
|
line = 0x0;
|
|
else
|
|
line = pgm_read_byte(font + (c * 5) + i);
|
|
|
|
if (size == 1) { // default size
|
|
for (int8_t j = 0; j < 8; j++) {
|
|
if (line & 0x1) drawPixel(x + i, y + j, color);
|
|
line >>= 1;
|
|
}
|
|
}
|
|
else { // big size
|
|
for (int8_t j = 0; j < 8; j++) {
|
|
if (line & 0x1) fillRect(x + (i * size), y + (j * size), size, size, color);
|
|
else if (fillbg) fillRect(x + i * size, y + j * size, size, size, bg);
|
|
line >>= 1;
|
|
}
|
|
}
|
|
}
|
|
inTransaction = false;
|
|
end_tft_write(); // Does nothing if Sprite class uses this function
|
|
}
|
|
|
|
//>>>>>>>>>>>>>>>>>>>>>>>>>>>
|
|
#ifdef LOAD_GFXFF
|
|
} else { // Custom font
|
|
#endif
|
|
//>>>>>>>>>>>>>>>>>>>>>>>>>>>
|
|
#endif // LOAD_GLCD
|
|
|
|
#ifdef LOAD_GFXFF
|
|
// Filter out bad characters not present in font
|
|
if ((c >= pgm_read_word(&gfxFont->first)) && (c <= pgm_read_word(&gfxFont->last ))) {
|
|
//begin_tft_write(); // Sprite class can use this function, avoiding begin_tft_write()
|
|
inTransaction = true;
|
|
//>>>>>>>>>>>>>>>>>>>>>>>>>>>
|
|
|
|
c -= pgm_read_word(&gfxFont->first);
|
|
GFXglyph *glyph = &(((GFXglyph *)pgm_read_dword(&gfxFont->glyph))[c]);
|
|
uint8_t *bitmap = (uint8_t *)pgm_read_dword(&gfxFont->bitmap);
|
|
|
|
uint32_t bo = pgm_read_word(&glyph->bitmapOffset);
|
|
uint8_t w = pgm_read_byte(&glyph->width),
|
|
h = pgm_read_byte(&glyph->height);
|
|
//xa = pgm_read_byte(&glyph->xAdvance);
|
|
int8_t xo = pgm_read_byte(&glyph->xOffset),
|
|
yo = pgm_read_byte(&glyph->yOffset);
|
|
uint8_t xx, yy, bits=0, bit=0;
|
|
int16_t xo16 = 0, yo16 = 0;
|
|
|
|
if(size > 1) {
|
|
xo16 = xo;
|
|
yo16 = yo;
|
|
}
|
|
|
|
// GFXFF rendering speed up
|
|
uint16_t hpc = 0; // Horizontal foreground pixel count
|
|
for(yy=0; yy<h; yy++) {
|
|
for(xx=0; xx<w; xx++) {
|
|
if(bit == 0) {
|
|
bits = pgm_read_byte(&bitmap[bo++]);
|
|
bit = 0x80;
|
|
}
|
|
if(bits & bit) hpc++;
|
|
else {
|
|
if (hpc) {
|
|
if(size == 1) drawFastHLine(x+xo+xx-hpc, y+yo+yy, hpc, color);
|
|
else fillRect(x+(xo16+xx-hpc)*size, y+(yo16+yy)*size, size*hpc, size, color);
|
|
hpc=0;
|
|
}
|
|
}
|
|
bit >>= 1;
|
|
}
|
|
// Draw pixels for this line as we are about to increment yy
|
|
if (hpc) {
|
|
if(size == 1) drawFastHLine(x+xo+xx-hpc, y+yo+yy, hpc, color);
|
|
else fillRect(x+(xo16+xx-hpc)*size, y+(yo16+yy)*size, size*hpc, size, color);
|
|
hpc=0;
|
|
}
|
|
}
|
|
|
|
inTransaction = false;
|
|
end_tft_write(); // Does nothing if Sprite class uses this function
|
|
}
|
|
#endif
|
|
|
|
#ifdef LOAD_GLCD
|
|
#ifdef LOAD_GFXFF
|
|
} // End classic vs custom font
|
|
#endif
|
|
#endif
|
|
|
|
}
|
|
|
|
|
|
/***************************************************************************************
|
|
** Function name: setAddrWindow
|
|
** Description: define an area to receive a stream of pixels
|
|
***************************************************************************************/
|
|
// Chip select is high at the end of this function
|
|
void TFT_eSPI::setAddrWindow(int32_t x0, int32_t y0, int32_t w, int32_t h)
|
|
{
|
|
begin_tft_write();
|
|
|
|
setWindow(x0, y0, x0 + w - 1, y0 + h - 1);
|
|
|
|
end_tft_write();
|
|
}
|
|
|
|
|
|
/***************************************************************************************
|
|
** Function name: setWindow
|
|
** Description: define an area to receive a stream of pixels
|
|
***************************************************************************************/
|
|
// Chip select stays low, call begin_tft_write first. Use setAddrWindow() from sketches
|
|
void TFT_eSPI::setWindow(int32_t x0, int32_t y0, int32_t x1, int32_t y1)
|
|
{
|
|
//begin_tft_write(); // Must be called before setWindow
|
|
|
|
addr_row = 0xFFFF;
|
|
addr_col = 0xFFFF;
|
|
|
|
#ifdef CGRAM_OFFSET
|
|
x0+=colstart;
|
|
x1+=colstart;
|
|
y0+=rowstart;
|
|
y1+=rowstart;
|
|
#endif
|
|
|
|
DC_C; tft_Write_8(TFT_CASET);
|
|
DC_D; tft_Write_32C(x0, x1);
|
|
DC_C; tft_Write_8(TFT_PASET);
|
|
DC_D; tft_Write_32C(y0, y1);
|
|
DC_C; tft_Write_8(TFT_RAMWR);
|
|
DC_D;
|
|
|
|
//end_tft_write(); // Must be called after setWindow
|
|
}
|
|
|
|
|
|
/***************************************************************************************
|
|
** Function name: readAddrWindow
|
|
** Description: define an area to read a stream of pixels
|
|
***************************************************************************************/
|
|
void TFT_eSPI::readAddrWindow(int32_t xs, int32_t ys, int32_t w, int32_t h)
|
|
{
|
|
//begin_tft_write(); // Must be called before readAddrWindow or CS set low
|
|
|
|
int32_t xe = xs + w - 1;
|
|
int32_t ye = ys + h - 1;
|
|
|
|
addr_col = 0xFFFF;
|
|
addr_row = 0xFFFF;
|
|
|
|
#ifdef CGRAM_OFFSET
|
|
xs += colstart;
|
|
xe += colstart;
|
|
ys += rowstart;
|
|
ye += rowstart;
|
|
#endif
|
|
|
|
// Column addr set
|
|
DC_C; tft_Write_8(TFT_CASET);
|
|
DC_D; tft_Write_32C(xs, xe);
|
|
|
|
// Row addr set
|
|
DC_C; tft_Write_8(TFT_PASET);
|
|
DC_D; tft_Write_32C(ys, ye);
|
|
|
|
// Read CGRAM command
|
|
DC_C; tft_Write_8(TFT_RAMRD);
|
|
|
|
DC_D;
|
|
|
|
//end_tft_write(); // Must be called after readAddrWindow or CS set high
|
|
}
|
|
|
|
|
|
/***************************************************************************************
|
|
** Function name: drawPixel
|
|
** Description: push a single pixel at an arbitrary position
|
|
***************************************************************************************/
|
|
void TFT_eSPI::drawPixel(int32_t x, int32_t y, uint32_t color)
|
|
{
|
|
// Range checking
|
|
if ((x < 0) || (y < 0) ||(x >= _width) || (y >= _height)) return;
|
|
|
|
#ifdef CGRAM_OFFSET
|
|
x+=colstart;
|
|
y+=rowstart;
|
|
#endif
|
|
|
|
begin_tft_write();
|
|
|
|
#ifdef MULTI_TFT_SUPPORT
|
|
// No optimisation
|
|
DC_C; tft_Write_8(TFT_CASET);
|
|
DC_D; tft_Write_32D(x);
|
|
DC_C; tft_Write_8(TFT_PASET);
|
|
DC_D; tft_Write_32D(y);
|
|
#else
|
|
// No need to send x if it has not changed (speeds things up)
|
|
if (addr_col != (x<<16 | x)) {
|
|
DC_C; tft_Write_8(TFT_CASET);
|
|
DC_D; tft_Write_32D(x);
|
|
addr_col = (x<<16 | x);
|
|
}
|
|
|
|
// No need to send y if it has not changed (speeds things up)
|
|
if (addr_row != (y<<16 | y)) {
|
|
DC_C; tft_Write_8(TFT_PASET);
|
|
DC_D; tft_Write_32D(y);
|
|
addr_row = (y<<16 | y);
|
|
}
|
|
#endif
|
|
|
|
DC_C; tft_Write_8(TFT_RAMWR);
|
|
DC_D; tft_Write_16(color);
|
|
|
|
end_tft_write();
|
|
}
|
|
|
|
/***************************************************************************************
|
|
** Function name: pushColor
|
|
** Description: push a single pixel
|
|
***************************************************************************************/
|
|
void TFT_eSPI::pushColor(uint16_t color)
|
|
{
|
|
begin_tft_write();
|
|
|
|
tft_Write_16(color);
|
|
|
|
end_tft_write();
|
|
}
|
|
|
|
|
|
/***************************************************************************************
|
|
** Function name: pushColor
|
|
** Description: push a single colour to "len" pixels
|
|
***************************************************************************************/
|
|
void TFT_eSPI::pushColor(uint16_t color, uint32_t len)
|
|
{
|
|
begin_tft_write();
|
|
|
|
pushBlock(color, len);
|
|
|
|
end_tft_write();
|
|
}
|
|
|
|
/***************************************************************************************
|
|
** Function name: startWrite
|
|
** Description: begin transaction with CS low, MUST later call endWrite
|
|
***************************************************************************************/
|
|
void TFT_eSPI::startWrite(void)
|
|
{
|
|
begin_tft_write();
|
|
inTransaction = true;
|
|
}
|
|
|
|
/***************************************************************************************
|
|
** Function name: endWrite
|
|
** Description: end transaction with CS high
|
|
***************************************************************************************/
|
|
void TFT_eSPI::endWrite(void)
|
|
{
|
|
inTransaction = false;
|
|
DMA_BUSY_CHECK; // Safety check - user code should have checked this!
|
|
end_tft_write();
|
|
}
|
|
|
|
/***************************************************************************************
|
|
** Function name: writeColor (use startWrite() and endWrite() before & after)
|
|
** Description: raw write of "len" pixels avoiding transaction check
|
|
***************************************************************************************/
|
|
void TFT_eSPI::writeColor(uint16_t color, uint32_t len)
|
|
{
|
|
pushBlock(color, len);
|
|
}
|
|
|
|
/***************************************************************************************
|
|
** Function name: pushColors
|
|
** Description: push an array of pixels for 16 bit raw image drawing
|
|
***************************************************************************************/
|
|
// Assumed that setAddrWindow() has previously been called
|
|
// len is number of bytes, not pixels
|
|
void TFT_eSPI::pushColors(uint8_t *data, uint32_t len)
|
|
{
|
|
begin_tft_write();
|
|
|
|
pushPixels(data, len>>1);
|
|
|
|
end_tft_write();
|
|
}
|
|
|
|
|
|
/***************************************************************************************
|
|
** Function name: pushColors
|
|
** Description: push an array of pixels, for image drawing
|
|
***************************************************************************************/
|
|
void TFT_eSPI::pushColors(uint16_t *data, uint32_t len, bool swap)
|
|
{
|
|
begin_tft_write();
|
|
if (swap) {swap = _swapBytes; _swapBytes = true; }
|
|
|
|
pushPixels(data, len);
|
|
|
|
_swapBytes = swap; // Restore old value
|
|
end_tft_write();
|
|
}
|
|
|
|
|
|
/***************************************************************************************
|
|
** Function name: drawLine
|
|
** Description: draw a line between 2 arbitrary points
|
|
***************************************************************************************/
|
|
// Bresenham's algorithm - thx wikipedia - speed enhanced by Bodmer to use
|
|
// an efficient FastH/V Line draw routine for line segments of 2 pixels or more
|
|
void TFT_eSPI::drawLine(int32_t x0, int32_t y0, int32_t x1, int32_t y1, uint32_t color)
|
|
{
|
|
//begin_tft_write(); // Sprite class can use this function, avoiding begin_tft_write()
|
|
inTransaction = true;
|
|
|
|
bool steep = abs(y1 - y0) > abs(x1 - x0);
|
|
if (steep) {
|
|
swap_coord(x0, y0);
|
|
swap_coord(x1, y1);
|
|
}
|
|
|
|
if (x0 > x1) {
|
|
swap_coord(x0, x1);
|
|
swap_coord(y0, y1);
|
|
}
|
|
|
|
int32_t dx = x1 - x0, dy = abs(y1 - y0);;
|
|
|
|
int32_t err = dx >> 1, ystep = -1, xs = x0, dlen = 0;
|
|
|
|
if (y0 < y1) ystep = 1;
|
|
|
|
// Split into steep and not steep for FastH/V separation
|
|
if (steep) {
|
|
for (; x0 <= x1; x0++) {
|
|
dlen++;
|
|
err -= dy;
|
|
if (err < 0) {
|
|
err += dx;
|
|
if (dlen == 1) drawPixel(y0, xs, color);
|
|
else drawFastVLine(y0, xs, dlen, color);
|
|
dlen = 0;
|
|
y0 += ystep; xs = x0 + 1;
|
|
}
|
|
}
|
|
if (dlen) drawFastVLine(y0, xs, dlen, color);
|
|
}
|
|
else
|
|
{
|
|
for (; x0 <= x1; x0++) {
|
|
dlen++;
|
|
err -= dy;
|
|
if (err < 0) {
|
|
err += dx;
|
|
if (dlen == 1) drawPixel(xs, y0, color);
|
|
else drawFastHLine(xs, y0, dlen, color);
|
|
dlen = 0;
|
|
y0 += ystep; xs = x0 + 1;
|
|
}
|
|
}
|
|
if (dlen) drawFastHLine(xs, y0, dlen, color);
|
|
}
|
|
|
|
inTransaction = false;
|
|
end_tft_write();
|
|
}
|
|
|
|
|
|
/***************************************************************************************
|
|
** Function name: drawFastVLine
|
|
** Description: draw a vertical line
|
|
***************************************************************************************/
|
|
void TFT_eSPI::drawFastVLine(int32_t x, int32_t y, int32_t h, uint32_t color)
|
|
{
|
|
// Clipping
|
|
if ((x < 0) || (x >= _width) || (y >= _height)) return;
|
|
|
|
if (y < 0) { h += y; y = 0; }
|
|
|
|
if ((y + h) > _height) h = _height - y;
|
|
|
|
if (h < 1) return;
|
|
|
|
begin_tft_write();
|
|
|
|
setWindow(x, y, x, y + h - 1);
|
|
|
|
pushBlock(color, h);
|
|
|
|
end_tft_write();
|
|
}
|
|
|
|
|
|
/***************************************************************************************
|
|
** Function name: drawFastHLine
|
|
** Description: draw a horizontal line
|
|
***************************************************************************************/
|
|
void TFT_eSPI::drawFastHLine(int32_t x, int32_t y, int32_t w, uint32_t color)
|
|
{
|
|
// Clipping
|
|
if ((y < 0) || (x >= _width) || (y >= _height)) return;
|
|
|
|
if (x < 0) { w += x; x = 0; }
|
|
|
|
if ((x + w) > _width) w = _width - x;
|
|
|
|
if (w < 1) return;
|
|
|
|
begin_tft_write();
|
|
|
|
setWindow(x, y, x + w - 1, y);
|
|
|
|
pushBlock(color, w);
|
|
|
|
end_tft_write();
|
|
}
|
|
|
|
|
|
/***************************************************************************************
|
|
** Function name: fillRect
|
|
** Description: draw a filled rectangle
|
|
***************************************************************************************/
|
|
void TFT_eSPI::fillRect(int32_t x, int32_t y, int32_t w, int32_t h, uint32_t color)
|
|
{
|
|
// Clipping
|
|
if ((x >= _width) || (y >= _height)) return;
|
|
|
|
if (x < 0) { w += x; x = 0; }
|
|
if (y < 0) { h += y; y = 0; }
|
|
|
|
if ((x + w) > _width) w = _width - x;
|
|
if ((y + h) > _height) h = _height - y;
|
|
|
|
if ((w < 1) || (h < 1)) return;
|
|
|
|
begin_tft_write();
|
|
|
|
setWindow(x, y, x + w - 1, y + h - 1);
|
|
|
|
pushBlock(color, w * h);
|
|
|
|
end_tft_write();
|
|
}
|
|
|
|
|
|
/***************************************************************************************
|
|
** Function name: color565
|
|
** Description: convert three 8 bit RGB levels to a 16 bit colour value
|
|
***************************************************************************************/
|
|
uint16_t TFT_eSPI::color565(uint8_t r, uint8_t g, uint8_t b)
|
|
{
|
|
return ((r & 0xF8) << 8) | ((g & 0xFC) << 3) | (b >> 3);
|
|
}
|
|
|
|
|
|
/***************************************************************************************
|
|
** Function name: color16to8
|
|
** Description: convert 16 bit colour to an 8 bit 332 RGB colour value
|
|
***************************************************************************************/
|
|
uint8_t TFT_eSPI::color16to8(uint16_t c)
|
|
{
|
|
return ((c & 0xE000)>>8) | ((c & 0x0700)>>6) | ((c & 0x0018)>>3);
|
|
}
|
|
|
|
|
|
/***************************************************************************************
|
|
** Function name: color8to16
|
|
** Description: convert 8 bit colour to a 16 bit 565 colour value
|
|
***************************************************************************************/
|
|
uint16_t TFT_eSPI::color8to16(uint8_t color)
|
|
{
|
|
uint8_t blue[] = {0, 11, 21, 31}; // blue 2 to 5 bit colour lookup table
|
|
uint16_t color16 = 0;
|
|
|
|
// =====Green===== ===============Red==============
|
|
color16 = (color & 0x1C)<<6 | (color & 0xC0)<<5 | (color & 0xE0)<<8;
|
|
// =====Green===== =======Blue======
|
|
color16 |= (color & 0x1C)<<3 | blue[color & 0x03];
|
|
|
|
return color16;
|
|
}
|
|
|
|
/***************************************************************************************
|
|
** Function name: color16to24
|
|
** Description: convert 16 bit colour to a 24 bit 888 colour value
|
|
***************************************************************************************/
|
|
uint32_t TFT_eSPI::color16to24(uint16_t color565)
|
|
{
|
|
uint8_t r = (color565 >> 8) & 0xF8; r |= (r >> 5);
|
|
uint8_t g = (color565 >> 3) & 0xFC; g |= (g >> 6);
|
|
uint8_t b = (color565 << 3) & 0xF8; b |= (b >> 5);
|
|
|
|
return ((uint32_t)r << 16) | ((uint32_t)g << 8) | ((uint32_t)b << 0);
|
|
}
|
|
|
|
/***************************************************************************************
|
|
** Function name: color24to16
|
|
** Description: convert 24 bit colour to a 16 bit 565 colour value
|
|
***************************************************************************************/
|
|
uint32_t TFT_eSPI::color24to16(uint32_t color888)
|
|
{
|
|
uint16_t r = (color888 >> 8) & 0xF800;
|
|
uint16_t g = (color888 >> 5) & 0x07E0;
|
|
uint16_t b = (color888 >> 3) & 0x001F;
|
|
|
|
return (r | g | b);
|
|
}
|
|
|
|
/***************************************************************************************
|
|
** Function name: invertDisplay
|
|
** Description: invert the display colours i = 1 invert, i = 0 normal
|
|
***************************************************************************************/
|
|
void TFT_eSPI::invertDisplay(bool i)
|
|
{
|
|
begin_tft_write();
|
|
// Send the command twice as otherwise it does not always work!
|
|
writecommand(i ? TFT_INVON : TFT_INVOFF);
|
|
writecommand(i ? TFT_INVON : TFT_INVOFF);
|
|
end_tft_write();
|
|
}
|
|
|
|
|
|
/**************************************************************************
|
|
** Function name: setAttribute
|
|
** Description: Sets a control parameter of an attribute
|
|
**************************************************************************/
|
|
void TFT_eSPI::setAttribute(uint8_t attr_id, uint8_t param) {
|
|
switch (attr_id) {
|
|
break;
|
|
case CP437_SWITCH:
|
|
_cp437 = param;
|
|
break;
|
|
case UTF8_SWITCH:
|
|
_utf8 = param;
|
|
decoderState = 0;
|
|
break;
|
|
case PSRAM_ENABLE:
|
|
#if defined (ESP32) && defined (CONFIG_SPIRAM_SUPPORT)
|
|
if (psramFound()) _psram_enable = param; // Enable the use of PSRAM (if available)
|
|
else
|
|
#endif
|
|
_psram_enable = false;
|
|
break;
|
|
//case 4: // TBD future feature control
|
|
// _tbd = param;
|
|
// break;
|
|
}
|
|
}
|
|
|
|
|
|
/**************************************************************************
|
|
** Function name: getAttribute
|
|
** Description: Get value of an attribute (control parameter)
|
|
**************************************************************************/
|
|
uint8_t TFT_eSPI::getAttribute(uint8_t attr_id) {
|
|
switch (attr_id) {
|
|
case CP437_SWITCH: // ON/OFF control of full CP437 character set
|
|
return _cp437;
|
|
case UTF8_SWITCH: // ON/OFF control of UTF-8 decoding
|
|
return _utf8;
|
|
case PSRAM_ENABLE:
|
|
return _psram_enable;
|
|
//case 3: // TBD future feature control
|
|
// return _tbd;
|
|
// break;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
/***************************************************************************************
|
|
** Function name: decodeUTF8
|
|
** Description: Serial UTF-8 decoder with fall-back to extended ASCII
|
|
*************************************************************************************x*/
|
|
#define DECODE_UTF8 // Test only, comment out to stop decoding
|
|
uint16_t TFT_eSPI::decodeUTF8(uint8_t c)
|
|
{
|
|
#ifdef DECODE_UTF8
|
|
// 7 bit Unicode Code Point
|
|
if ((c & 0x80) == 0x00) {
|
|
decoderState = 0;
|
|
return (uint16_t)c;
|
|
}
|
|
|
|
if (decoderState == 0) {
|
|
// 11 bit Unicode Code Point
|
|
if ((c & 0xE0) == 0xC0) {
|
|
decoderBuffer = ((c & 0x1F)<<6);
|
|
decoderState = 1;
|
|
return 0;
|
|
}
|
|
// 16 bit Unicode Code Point
|
|
if ((c & 0xF0) == 0xE0) {
|
|
decoderBuffer = ((c & 0x0F)<<12);
|
|
decoderState = 2;
|
|
return 0;
|
|
}
|
|
// 21 bit Unicode Code Point not supported so fall-back to extended ASCII
|
|
// if ((c & 0xF8) == 0xF0) return (uint16_t)c;
|
|
}
|
|
else {
|
|
if (decoderState == 2) {
|
|
decoderBuffer |= ((c & 0x3F)<<6);
|
|
decoderState--;
|
|
return 0;
|
|
}
|
|
else {
|
|
decoderBuffer |= (c & 0x3F);
|
|
decoderState = 0;
|
|
return decoderBuffer;
|
|
}
|
|
}
|
|
|
|
decoderState = 0;
|
|
#endif
|
|
|
|
return (uint16_t)c; // fall-back to extended ASCII
|
|
}
|
|
|
|
|
|
/***************************************************************************************
|
|
** Function name: decodeUTF8
|
|
** Description: Line buffer UTF-8 decoder with fall-back to extended ASCII
|
|
*************************************************************************************x*/
|
|
uint16_t TFT_eSPI::decodeUTF8(uint8_t *buf, uint16_t *index, uint16_t remaining)
|
|
{
|
|
uint16_t c = buf[(*index)++];
|
|
//Serial.print("Byte from string = 0x"); Serial.println(c, HEX);
|
|
|
|
#ifdef DECODE_UTF8
|
|
// 7 bit Unicode
|
|
if ((c & 0x80) == 0x00) return c;
|
|
|
|
// 11 bit Unicode
|
|
if (((c & 0xE0) == 0xC0) && (remaining > 1))
|
|
return ((c & 0x1F)<<6) | (buf[(*index)++]&0x3F);
|
|
|
|
// 16 bit Unicode
|
|
if (((c & 0xF0) == 0xE0) && (remaining > 2)) {
|
|
c = ((c & 0x0F)<<12) | ((buf[(*index)++]&0x3F)<<6);
|
|
return c | ((buf[(*index)++]&0x3F));
|
|
}
|
|
|
|
// 21 bit Unicode not supported so fall-back to extended ASCII
|
|
// if ((c & 0xF8) == 0xF0) return c;
|
|
#endif
|
|
|
|
return c; // fall-back to extended ASCII
|
|
}
|
|
|
|
|
|
/***************************************************************************************
|
|
** Function name: alphaBlend
|
|
** Description: Blend 16bit foreground and background
|
|
*************************************************************************************x*/
|
|
uint16_t TFT_eSPI::alphaBlend(uint8_t alpha, uint16_t fgc, uint16_t bgc)
|
|
{
|
|
// For speed use fixed point maths and rounding to permit a power of 2 division
|
|
uint16_t fgR = ((fgc >> 10) & 0x3E) + 1;
|
|
uint16_t fgG = ((fgc >> 4) & 0x7E) + 1;
|
|
uint16_t fgB = ((fgc << 1) & 0x3E) + 1;
|
|
|
|
uint16_t bgR = ((bgc >> 10) & 0x3E) + 1;
|
|
uint16_t bgG = ((bgc >> 4) & 0x7E) + 1;
|
|
uint16_t bgB = ((bgc << 1) & 0x3E) + 1;
|
|
|
|
// Shift right 1 to drop rounding bit and shift right 8 to divide by 256
|
|
uint16_t r = (((fgR * alpha) + (bgR * (255 - alpha))) >> 9);
|
|
uint16_t g = (((fgG * alpha) + (bgG * (255 - alpha))) >> 9);
|
|
uint16_t b = (((fgB * alpha) + (bgB * (255 - alpha))) >> 9);
|
|
|
|
// Combine RGB565 colours into 16 bits
|
|
//return ((r&0x18) << 11) | ((g&0x30) << 5) | ((b&0x18) << 0); // 2 bit greyscale
|
|
//return ((r&0x1E) << 11) | ((g&0x3C) << 5) | ((b&0x1E) << 0); // 4 bit greyscale
|
|
return (r << 11) | (g << 5) | (b << 0);
|
|
}
|
|
|
|
/***************************************************************************************
|
|
** Function name: alphaBlend
|
|
** Description: Blend 16bit foreground and background with dither
|
|
*************************************************************************************x*/
|
|
uint16_t TFT_eSPI::alphaBlend(uint8_t alpha, uint16_t fgc, uint16_t bgc, uint8_t dither)
|
|
{
|
|
if (dither) {
|
|
int16_t alphaDither = (int16_t)alpha - dither + random(2*dither+1); // +/-4 randomised
|
|
alpha = (uint8_t)alphaDither;
|
|
if (alphaDither < 0) alpha = 0;
|
|
if (alphaDither >255) alpha = 255;
|
|
}
|
|
|
|
return alphaBlend(alpha, fgc, bgc);
|
|
}
|
|
|
|
/***************************************************************************************
|
|
** Function name: alphaBlend
|
|
** Description: Blend 24bit foreground and background with optional dither
|
|
*************************************************************************************x*/
|
|
uint32_t TFT_eSPI::alphaBlend24(uint8_t alpha, uint32_t fgc, uint32_t bgc, uint8_t dither)
|
|
{
|
|
|
|
if (dither) {
|
|
int16_t alphaDither = (int16_t)alpha - dither + random(2*dither+1); // +/-dither randomised
|
|
alpha = (uint8_t)alphaDither;
|
|
if (alphaDither < 0) alpha = 0;
|
|
if (alphaDither >255) alpha = 255;
|
|
}
|
|
|
|
// For speed use fixed point maths and rounding to permit a power of 2 division
|
|
uint16_t fgR = ((fgc >> 15) & 0x1FE) + 1;
|
|
uint16_t fgG = ((fgc >> 7) & 0x1FE) + 1;
|
|
uint16_t fgB = ((fgc << 1) & 0x1FE) + 1;
|
|
|
|
uint16_t bgR = ((bgc >> 15) & 0x1FE) + 1;
|
|
uint16_t bgG = ((bgc >> 7) & 0x1FE) + 1;
|
|
uint16_t bgB = ((bgc << 1) & 0x1FE) + 1;
|
|
|
|
// Shift right 1 to drop rounding bit and shift right 8 to divide by 256
|
|
uint16_t r = (((fgR * alpha) + (bgR * (255 - alpha))) >> 9);
|
|
uint16_t g = (((fgG * alpha) + (bgG * (255 - alpha))) >> 9);
|
|
uint16_t b = (((fgB * alpha) + (bgB * (255 - alpha))) >> 9);
|
|
|
|
// Combine RGB colours into 24 bits
|
|
return (r << 16) | (g << 8) | (b << 0);
|
|
}
|
|
|
|
/***************************************************************************************
|
|
** Function name: write
|
|
** Description: draw characters piped through serial stream
|
|
***************************************************************************************/
|
|
size_t TFT_eSPI::write(uint8_t utf8)
|
|
{
|
|
if (utf8 == '\r') return 1;
|
|
|
|
uint16_t uniCode = utf8;
|
|
|
|
if (_utf8) uniCode = decodeUTF8(utf8);
|
|
|
|
if (uniCode == 0) return 1;
|
|
|
|
#ifdef SMOOTH_FONT
|
|
if(fontLoaded) {
|
|
//Serial.print("UniCode="); Serial.println(uniCode);
|
|
//Serial.print("UTF8 ="); Serial.println(utf8);
|
|
|
|
//fontFile = SPIFFS.open( _gFontFilename, "r" );
|
|
|
|
//if(!fontFile)
|
|
//{
|
|
// fontLoaded = false;
|
|
// return 1;
|
|
//}
|
|
|
|
drawGlyph(uniCode);
|
|
|
|
//fontFile.close();
|
|
return 1;
|
|
}
|
|
#endif
|
|
|
|
if (uniCode == '\n') uniCode+=22; // Make it a valid space character to stop errors
|
|
else if (uniCode < 32) return 1;
|
|
|
|
uint16_t width = 0;
|
|
uint16_t height = 0;
|
|
|
|
//vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv DEBUG vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv
|
|
//Serial.print((uint8_t) uniCode); // Debug line sends all printed TFT text to serial port
|
|
//Serial.println(uniCode, HEX); // Debug line sends all printed TFT text to serial port
|
|
//delay(5); // Debug optional wait for serial port to flush through
|
|
//^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ DEBUG ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
|
|
|
//<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
|
|
#ifdef LOAD_GFXFF
|
|
if(!gfxFont) {
|
|
#endif
|
|
//<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
|
|
|
|
#ifdef LOAD_FONT2
|
|
if (textfont == 2) {
|
|
if (uniCode > 127) return 1;
|
|
|
|
width = pgm_read_byte(widtbl_f16 + uniCode-32);
|
|
height = chr_hgt_f16;
|
|
// Font 2 is rendered in whole byte widths so we must allow for this
|
|
width = (width + 6) / 8; // Width in whole bytes for font 2, should be + 7 but must allow for font width change
|
|
width = width * 8; // Width converted back to pixels
|
|
}
|
|
#ifdef LOAD_RLE
|
|
else
|
|
#endif
|
|
#endif
|
|
|
|
#ifdef LOAD_RLE
|
|
{
|
|
if ((textfont>2) && (textfont<9)) {
|
|
if (uniCode > 127) return 1;
|
|
// Uses the fontinfo struct array to avoid lots of 'if' or 'switch' statements
|
|
width = pgm_read_byte( (uint8_t *)pgm_read_dword( &(fontdata[textfont].widthtbl ) ) + uniCode-32 );
|
|
height= pgm_read_byte( &fontdata[textfont].height );
|
|
}
|
|
}
|
|
#endif
|
|
|
|
#ifdef LOAD_GLCD
|
|
if (textfont==1) {
|
|
width = 6;
|
|
height = 8;
|
|
}
|
|
#else
|
|
if (textfont==1) return 1;
|
|
#endif
|
|
|
|
height = height * textsize;
|
|
|
|
if (utf8 == '\n') {
|
|
cursor_y += height;
|
|
cursor_x = 0;
|
|
}
|
|
else {
|
|
if (textwrapX && (cursor_x + width * textsize > _width)) {
|
|
cursor_y += height;
|
|
cursor_x = 0;
|
|
}
|
|
if (textwrapY && (cursor_y >= (int32_t)_height)) cursor_y = 0;
|
|
cursor_x += drawChar(uniCode, cursor_x, cursor_y, textfont);
|
|
}
|
|
|
|
//<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
|
|
#ifdef LOAD_GFXFF
|
|
} // Custom GFX font
|
|
else {
|
|
if(utf8 == '\n') {
|
|
cursor_x = 0;
|
|
cursor_y += (int16_t)textsize *
|
|
(uint8_t)pgm_read_byte(&gfxFont->yAdvance);
|
|
}
|
|
else {
|
|
if (uniCode > pgm_read_word(&gfxFont->last )) return 1;
|
|
if (uniCode < pgm_read_word(&gfxFont->first)) return 1;
|
|
|
|
uint16_t c2 = uniCode - pgm_read_word(&gfxFont->first);
|
|
GFXglyph *glyph = &(((GFXglyph *)pgm_read_dword(&gfxFont->glyph))[c2]);
|
|
uint8_t w = pgm_read_byte(&glyph->width),
|
|
h = pgm_read_byte(&glyph->height);
|
|
if((w > 0) && (h > 0)) { // Is there an associated bitmap?
|
|
int16_t xo = (int8_t)pgm_read_byte(&glyph->xOffset);
|
|
if(textwrapX && ((cursor_x + textsize * (xo + w)) > _width)) {
|
|
// Drawing character would go off right edge; wrap to new line
|
|
cursor_x = 0;
|
|
cursor_y += (int16_t)textsize *
|
|
(uint8_t)pgm_read_byte(&gfxFont->yAdvance);
|
|
}
|
|
if (textwrapY && (cursor_y >= (int32_t)_height)) cursor_y = 0;
|
|
drawChar(cursor_x, cursor_y, uniCode, textcolor, textbgcolor, textsize);
|
|
}
|
|
cursor_x += pgm_read_byte(&glyph->xAdvance) * (int16_t)textsize;
|
|
}
|
|
}
|
|
#endif // LOAD_GFXFF
|
|
//<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
|
|
|
|
return 1;
|
|
}
|
|
|
|
|
|
/***************************************************************************************
|
|
** Function name: drawChar
|
|
** Description: draw a Unicode glyph onto the screen
|
|
***************************************************************************************/
|
|
// Any UTF-8 decoding must be done before calling drawChar()
|
|
int16_t TFT_eSPI::drawChar(uint16_t uniCode, int32_t x, int32_t y)
|
|
{
|
|
return drawChar(uniCode, x, y, textfont);
|
|
}
|
|
|
|
// Any UTF-8 decoding must be done before calling drawChar()
|
|
int16_t TFT_eSPI::drawChar(uint16_t uniCode, int32_t x, int32_t y, uint8_t font)
|
|
{
|
|
if (!uniCode) return 0;
|
|
|
|
if (font==1) {
|
|
#ifdef LOAD_GLCD
|
|
#ifndef LOAD_GFXFF
|
|
drawChar(x, y, uniCode, textcolor, textbgcolor, textsize);
|
|
return 6 * textsize;
|
|
#endif
|
|
#else
|
|
#ifndef LOAD_GFXFF
|
|
return 0;
|
|
#endif
|
|
#endif
|
|
|
|
#ifdef LOAD_GFXFF
|
|
drawChar(x, y, uniCode, textcolor, textbgcolor, textsize);
|
|
if(!gfxFont) { // 'Classic' built-in font
|
|
#ifdef LOAD_GLCD
|
|
return 6 * textsize;
|
|
#else
|
|
return 0;
|
|
#endif
|
|
}
|
|
else {
|
|
if((uniCode >= pgm_read_word(&gfxFont->first)) && (uniCode <= pgm_read_word(&gfxFont->last) )) {
|
|
uint16_t c2 = uniCode - pgm_read_word(&gfxFont->first);
|
|
GFXglyph *glyph = &(((GFXglyph *)pgm_read_dword(&gfxFont->glyph))[c2]);
|
|
return pgm_read_byte(&glyph->xAdvance) * textsize;
|
|
}
|
|
else {
|
|
return 0;
|
|
}
|
|
}
|
|
#endif
|
|
}
|
|
|
|
if ((font>1) && (font<9) && ((uniCode < 32) || (uniCode > 127))) return 0;
|
|
|
|
int32_t width = 0;
|
|
int32_t height = 0;
|
|
uint32_t flash_address = 0;
|
|
uniCode -= 32;
|
|
|
|
#ifdef LOAD_FONT2
|
|
if (font == 2) {
|
|
flash_address = pgm_read_dword(&chrtbl_f16[uniCode]);
|
|
width = pgm_read_byte(widtbl_f16 + uniCode);
|
|
height = chr_hgt_f16;
|
|
}
|
|
#ifdef LOAD_RLE
|
|
else
|
|
#endif
|
|
#endif
|
|
|
|
#ifdef LOAD_RLE
|
|
{
|
|
if ((font>2) && (font<9)) {
|
|
flash_address = pgm_read_dword( (const void*)(pgm_read_dword( &(fontdata[font].chartbl ) ) + uniCode*sizeof(void *)) );
|
|
width = pgm_read_byte( (uint8_t *)pgm_read_dword( &(fontdata[font].widthtbl ) ) + uniCode );
|
|
height= pgm_read_byte( &fontdata[font].height );
|
|
}
|
|
}
|
|
#endif
|
|
|
|
int32_t w = width;
|
|
int32_t pX = 0;
|
|
int32_t pY = y;
|
|
uint8_t line = 0;
|
|
|
|
#ifdef LOAD_FONT2 // chop out code if we do not need it
|
|
if (font == 2) {
|
|
w = w + 6; // Should be + 7 but we need to compensate for width increment
|
|
w = w / 8;
|
|
if (x + width * textsize >= (int16_t)_width) return width * textsize ;
|
|
|
|
if (textcolor == textbgcolor || textsize != 1) {
|
|
//begin_tft_write(); // Sprite class can use this function, avoiding begin_tft_write()
|
|
inTransaction = true;
|
|
|
|
for (int32_t i = 0; i < height; i++) {
|
|
if (textcolor != textbgcolor) fillRect(x, pY, width * textsize, textsize, textbgcolor);
|
|
|
|
for (int32_t k = 0; k < w; k++) {
|
|
line = pgm_read_byte((uint8_t *)flash_address + w * i + k);
|
|
if (line) {
|
|
if (textsize == 1) {
|
|
pX = x + k * 8;
|
|
if (line & 0x80) drawPixel(pX, pY, textcolor);
|
|
if (line & 0x40) drawPixel(pX + 1, pY, textcolor);
|
|
if (line & 0x20) drawPixel(pX + 2, pY, textcolor);
|
|
if (line & 0x10) drawPixel(pX + 3, pY, textcolor);
|
|
if (line & 0x08) drawPixel(pX + 4, pY, textcolor);
|
|
if (line & 0x04) drawPixel(pX + 5, pY, textcolor);
|
|
if (line & 0x02) drawPixel(pX + 6, pY, textcolor);
|
|
if (line & 0x01) drawPixel(pX + 7, pY, textcolor);
|
|
}
|
|
else {
|
|
pX = x + k * 8 * textsize;
|
|
if (line & 0x80) fillRect(pX, pY, textsize, textsize, textcolor);
|
|
if (line & 0x40) fillRect(pX + textsize, pY, textsize, textsize, textcolor);
|
|
if (line & 0x20) fillRect(pX + 2 * textsize, pY, textsize, textsize, textcolor);
|
|
if (line & 0x10) fillRect(pX + 3 * textsize, pY, textsize, textsize, textcolor);
|
|
if (line & 0x08) fillRect(pX + 4 * textsize, pY, textsize, textsize, textcolor);
|
|
if (line & 0x04) fillRect(pX + 5 * textsize, pY, textsize, textsize, textcolor);
|
|
if (line & 0x02) fillRect(pX + 6 * textsize, pY, textsize, textsize, textcolor);
|
|
if (line & 0x01) fillRect(pX + 7 * textsize, pY, textsize, textsize, textcolor);
|
|
}
|
|
}
|
|
}
|
|
pY += textsize;
|
|
}
|
|
|
|
inTransaction = false;
|
|
end_tft_write();
|
|
}
|
|
else { // Faster drawing of characters and background using block write
|
|
begin_tft_write();
|
|
|
|
setWindow(x, y, x + width - 1, y + height - 1);
|
|
|
|
uint8_t mask;
|
|
for (int32_t i = 0; i < height; i++) {
|
|
pX = width;
|
|
for (int32_t k = 0; k < w; k++) {
|
|
line = pgm_read_byte((uint8_t *) (flash_address + w * i + k) );
|
|
mask = 0x80;
|
|
while (mask && pX) {
|
|
if (line & mask) {tft_Write_16(textcolor);}
|
|
else {tft_Write_16(textbgcolor);}
|
|
pX--;
|
|
mask = mask >> 1;
|
|
}
|
|
}
|
|
if (pX) {tft_Write_16(textbgcolor);}
|
|
}
|
|
|
|
end_tft_write();
|
|
}
|
|
}
|
|
|
|
#ifdef LOAD_RLE
|
|
else
|
|
#endif
|
|
#endif //FONT2
|
|
|
|
#ifdef LOAD_RLE //674 bytes of code
|
|
// Font is not 2 and hence is RLE encoded
|
|
{
|
|
begin_tft_write();
|
|
inTransaction = true;
|
|
|
|
w *= height; // Now w is total number of pixels in the character
|
|
if ((textsize != 1) || (textcolor == textbgcolor)) {
|
|
if (textcolor != textbgcolor) fillRect(x, pY, width * textsize, textsize * height, textbgcolor);
|
|
int32_t px = 0, py = pY; // To hold character block start and end column and row values
|
|
int32_t pc = 0; // Pixel count
|
|
uint8_t np = textsize * textsize; // Number of pixels in a drawn pixel
|
|
|
|
uint8_t tnp = 0; // Temporary copy of np for while loop
|
|
uint8_t ts = textsize - 1; // Temporary copy of textsize
|
|
// 16 bit pixel count so maximum font size is equivalent to 180x180 pixels in area
|
|
// w is total number of pixels to plot to fill character block
|
|
while (pc < w) {
|
|
line = pgm_read_byte((uint8_t *)flash_address);
|
|
flash_address++;
|
|
if (line & 0x80) {
|
|
line &= 0x7F;
|
|
line++;
|
|
if (ts) {
|
|
px = x + textsize * (pc % width); // Keep these px and py calculations outside the loop as they are slow
|
|
py = y + textsize * (pc / width);
|
|
}
|
|
else {
|
|
px = x + pc % width; // Keep these px and py calculations outside the loop as they are slow
|
|
py = y + pc / width;
|
|
}
|
|
while (line--) { // In this case the while(line--) is faster
|
|
pc++; // This is faster than putting pc+=line before while()?
|
|
setWindow(px, py, px + ts, py + ts);
|
|
|
|
if (ts) {
|
|
tnp = np;
|
|
while (tnp--) {tft_Write_16(textcolor);}
|
|
}
|
|
else {tft_Write_16(textcolor);}
|
|
px += textsize;
|
|
|
|
if (px >= (x + width * textsize)) {
|
|
px = x;
|
|
py += textsize;
|
|
}
|
|
}
|
|
}
|
|
else {
|
|
line++;
|
|
pc += line;
|
|
}
|
|
}
|
|
}
|
|
else {
|
|
// Text colour != background && textsize = 1 and character is within screen area
|
|
// so use faster drawing of characters and background using block write
|
|
if ((x >= 0) && (x + width <= _width) && (y >= 0) && (y + height <= _height))
|
|
{
|
|
setWindow(x, y, x + width - 1, y + height - 1);
|
|
|
|
// Maximum font size is equivalent to 180x180 pixels in area
|
|
while (w > 0) {
|
|
line = pgm_read_byte((uint8_t *)flash_address++); // 8 bytes smaller when incrementing here
|
|
if (line & 0x80) {
|
|
line &= 0x7F;
|
|
line++; w -= line;
|
|
pushBlock(textcolor,line);
|
|
}
|
|
else {
|
|
line++; w -= line;
|
|
pushBlock(textbgcolor,line);
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
int32_t px = x, py = y; // To hold character block start and end column and row values
|
|
int32_t pc = 0; // Pixel count
|
|
int32_t pl = 0; // Pixel line length
|
|
uint16_t pcol = 0; // Pixel color
|
|
|
|
while (pc < w) {
|
|
line = pgm_read_byte((uint8_t *)flash_address);
|
|
flash_address++;
|
|
if (line & 0x80) { pcol = textcolor; line &= 0x7F; }
|
|
else pcol = textbgcolor;
|
|
line++;
|
|
px = x + pc % width;
|
|
py = y + pc / width;
|
|
|
|
pl = 0;
|
|
pc += line;
|
|
while (line--) { // In this case the while(line--) is faster
|
|
pl++;
|
|
if ((px+pl) >= (x + width)) {
|
|
drawFastHLine(px, py, pl, pcol);
|
|
pl = 0;
|
|
px = x;
|
|
py ++;
|
|
}
|
|
}
|
|
if (pl)drawFastHLine(px, py, pl, pcol);
|
|
}
|
|
}
|
|
}
|
|
inTransaction = false;
|
|
end_tft_write();
|
|
}
|
|
// End of RLE font rendering
|
|
#endif
|
|
return width * textsize; // x +
|
|
}
|
|
|
|
|
|
/***************************************************************************************
|
|
** Function name: drawString (with or without user defined font)
|
|
** Description : draw string with padding if it is defined
|
|
***************************************************************************************/
|
|
// Without font number, uses font set by setTextFont()
|
|
int16_t TFT_eSPI::drawString(const String& string, int32_t poX, int32_t poY)
|
|
{
|
|
int16_t len = string.length() + 2;
|
|
char buffer[len];
|
|
string.toCharArray(buffer, len);
|
|
return drawString(buffer, poX, poY, textfont);
|
|
}
|
|
// With font number
|
|
int16_t TFT_eSPI::drawString(const String& string, int32_t poX, int32_t poY, uint8_t font)
|
|
{
|
|
int16_t len = string.length() + 2;
|
|
char buffer[len];
|
|
string.toCharArray(buffer, len);
|
|
return drawString(buffer, poX, poY, font);
|
|
}
|
|
|
|
// Without font number, uses font set by setTextFont()
|
|
int16_t TFT_eSPI::drawString(const char *string, int32_t poX, int32_t poY)
|
|
{
|
|
return drawString(string, poX, poY, textfont);
|
|
}
|
|
|
|
// With font number. Note: font number is over-ridden if a smooth font is loaded
|
|
int16_t TFT_eSPI::drawString(const char *string, int32_t poX, int32_t poY, uint8_t font)
|
|
{
|
|
int16_t sumX = 0;
|
|
uint8_t padding = 1, baseline = 0;
|
|
uint16_t cwidth = textWidth(string, font); // Find the pixel width of the string in the font
|
|
uint16_t cheight = 8 * textsize;
|
|
|
|
#ifdef LOAD_GFXFF
|
|
#ifdef SMOOTH_FONT
|
|
bool freeFont = (font == 1 && gfxFont && !fontLoaded);
|
|
#else
|
|
bool freeFont = (font == 1 && gfxFont);
|
|
#endif
|
|
|
|
if (freeFont) {
|
|
cheight = glyph_ab * textsize;
|
|
poY += cheight; // Adjust for baseline datum of free fonts
|
|
baseline = cheight;
|
|
padding =101; // Different padding method used for Free Fonts
|
|
|
|
// We need to make an adjustment for the bottom of the string (eg 'y' character)
|
|
if ((textdatum == BL_DATUM) || (textdatum == BC_DATUM) || (textdatum == BR_DATUM)) {
|
|
cheight += glyph_bb * textsize;
|
|
}
|
|
}
|
|
#endif
|
|
|
|
|
|
// If it is not font 1 (GLCD or free font) get the baseline and pixel height of the font
|
|
#ifdef SMOOTH_FONT
|
|
if(fontLoaded) {
|
|
baseline = gFont.maxAscent;
|
|
cheight = fontHeight();
|
|
}
|
|
else
|
|
#endif
|
|
if (font!=1) {
|
|
baseline = pgm_read_byte( &fontdata[font].baseline ) * textsize;
|
|
cheight = fontHeight(font);
|
|
}
|
|
|
|
if (textdatum || padX) {
|
|
|
|
switch(textdatum) {
|
|
case TC_DATUM:
|
|
poX -= cwidth/2;
|
|
padding += 1;
|
|
break;
|
|
case TR_DATUM:
|
|
poX -= cwidth;
|
|
padding += 2;
|
|
break;
|
|
case ML_DATUM:
|
|
poY -= cheight/2;
|
|
//padding += 0;
|
|
break;
|
|
case MC_DATUM:
|
|
poX -= cwidth/2;
|
|
poY -= cheight/2;
|
|
padding += 1;
|
|
break;
|
|
case MR_DATUM:
|
|
poX -= cwidth;
|
|
poY -= cheight/2;
|
|
padding += 2;
|
|
break;
|
|
case BL_DATUM:
|
|
poY -= cheight;
|
|
//padding += 0;
|
|
break;
|
|
case BC_DATUM:
|
|
poX -= cwidth/2;
|
|
poY -= cheight;
|
|
padding += 1;
|
|
break;
|
|
case BR_DATUM:
|
|
poX -= cwidth;
|
|
poY -= cheight;
|
|
padding += 2;
|
|
break;
|
|
case L_BASELINE:
|
|
poY -= baseline;
|
|
//padding += 0;
|
|
break;
|
|
case C_BASELINE:
|
|
poX -= cwidth/2;
|
|
poY -= baseline;
|
|
padding += 1;
|
|
break;
|
|
case R_BASELINE:
|
|
poX -= cwidth;
|
|
poY -= baseline;
|
|
padding += 2;
|
|
break;
|
|
}
|
|
// Check coordinates are OK, adjust if not
|
|
if (poX < 0) poX = 0;
|
|
if (poX+cwidth > width()) poX = width() - cwidth;
|
|
if (poY < 0) poY = 0;
|
|
if (poY+cheight-baseline> height()) poY = height() - cheight;
|
|
}
|
|
|
|
|
|
int8_t xo = 0;
|
|
#ifdef LOAD_GFXFF
|
|
if (freeFont && (textcolor!=textbgcolor)) {
|
|
cheight = (glyph_ab + glyph_bb) * textsize;
|
|
// Get the offset for the first character only to allow for negative offsets
|
|
uint16_t c2 = 0;
|
|
uint16_t len = strlen(string);
|
|
uint16_t n = 0;
|
|
|
|
while (n < len && c2 == 0) c2 = decodeUTF8((uint8_t*)string, &n, len - n);
|
|
|
|
if((c2 >= pgm_read_word(&gfxFont->first)) && (c2 <= pgm_read_word(&gfxFont->last) )) {
|
|
c2 -= pgm_read_word(&gfxFont->first);
|
|
GFXglyph *glyph = &(((GFXglyph *)pgm_read_dword(&gfxFont->glyph))[c2]);
|
|
xo = pgm_read_byte(&glyph->xOffset) * textsize;
|
|
// Adjust for negative xOffset
|
|
if (xo > 0) xo = 0;
|
|
else cwidth -= xo;
|
|
// Add 1 pixel of padding all round
|
|
//cheight +=2;
|
|
//fillRect(poX+xo-1, poY - 1 - glyph_ab * textsize, cwidth+2, cheight, textbgcolor);
|
|
fillRect(poX+xo, poY - glyph_ab * textsize, cwidth, cheight, textbgcolor);
|
|
}
|
|
padding -=100;
|
|
}
|
|
#endif
|
|
|
|
uint16_t len = strlen(string);
|
|
uint16_t n = 0;
|
|
|
|
#ifdef SMOOTH_FONT
|
|
if(fontLoaded) {
|
|
if (textcolor!=textbgcolor) fillRect(poX, poY, cwidth, cheight, textbgcolor);
|
|
|
|
setCursor(poX, poY);
|
|
|
|
while (n < len) {
|
|
uint16_t uniCode = decodeUTF8((uint8_t*)string, &n, len - n);
|
|
drawGlyph(uniCode);
|
|
}
|
|
sumX += cwidth;
|
|
//fontFile.close();
|
|
}
|
|
else
|
|
#endif
|
|
{
|
|
while (n < len) {
|
|
uint16_t uniCode = decodeUTF8((uint8_t*)string, &n, len - n);
|
|
sumX += drawChar(uniCode, poX+sumX, poY, font);
|
|
}
|
|
}
|
|
|
|
//vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv DEBUG vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv
|
|
// Switch on debugging for the padding areas
|
|
//#define PADDING_DEBUG
|
|
|
|
#ifndef PADDING_DEBUG
|
|
//^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ DEBUG ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
|
|
|
if((padX>cwidth) && (textcolor!=textbgcolor)) {
|
|
int16_t padXc = poX+cwidth+xo;
|
|
#ifdef LOAD_GFXFF
|
|
if (freeFont) {
|
|
poX +=xo; // Adjust for negative offset start character
|
|
poY -= glyph_ab * textsize;
|
|
sumX += poX;
|
|
}
|
|
#endif
|
|
switch(padding) {
|
|
case 1:
|
|
fillRect(padXc,poY,padX-cwidth,cheight, textbgcolor);
|
|
break;
|
|
case 2:
|
|
fillRect(padXc,poY,(padX-cwidth)>>1,cheight, textbgcolor);
|
|
padXc = (padX-cwidth)>>1;
|
|
if (padXc>poX) padXc = poX;
|
|
fillRect(poX - padXc,poY,(padX-cwidth)>>1,cheight, textbgcolor);
|
|
break;
|
|
case 3:
|
|
if (padXc>padX) padXc = padX;
|
|
fillRect(poX + cwidth - padXc,poY,padXc-cwidth,cheight, textbgcolor);
|
|
break;
|
|
}
|
|
}
|
|
|
|
|
|
#else
|
|
|
|
//vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv DEBUG vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv
|
|
// This is debug code to show text (green box) and blanked (white box) areas
|
|
// It shows that the padding areas are being correctly sized and positioned
|
|
|
|
if((padX>sumX) && (textcolor!=textbgcolor)) {
|
|
int16_t padXc = poX+sumX; // Maximum left side padding
|
|
#ifdef LOAD_GFXFF
|
|
if ((font == 1) && (gfxFont)) poY -= glyph_ab;
|
|
#endif
|
|
drawRect(poX,poY,sumX,cheight, TFT_GREEN);
|
|
switch(padding) {
|
|
case 1:
|
|
drawRect(padXc,poY,padX-sumX,cheight, TFT_WHITE);
|
|
break;
|
|
case 2:
|
|
drawRect(padXc,poY,(padX-sumX)>>1, cheight, TFT_WHITE);
|
|
padXc = (padX-sumX)>>1;
|
|
if (padXc>poX) padXc = poX;
|
|
drawRect(poX - padXc,poY,(padX-sumX)>>1,cheight, TFT_WHITE);
|
|
break;
|
|
case 3:
|
|
if (padXc>padX) padXc = padX;
|
|
drawRect(poX + sumX - padXc,poY,padXc-sumX,cheight, TFT_WHITE);
|
|
break;
|
|
}
|
|
}
|
|
#endif
|
|
//^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ DEBUG ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
|
|
|
return sumX;
|
|
}
|
|
|
|
|
|
/***************************************************************************************
|
|
** Function name: drawCentreString (deprecated, use setTextDatum())
|
|
** Descriptions: draw string centred on dX
|
|
***************************************************************************************/
|
|
int16_t TFT_eSPI::drawCentreString(const String& string, int32_t dX, int32_t poY, uint8_t font)
|
|
{
|
|
int16_t len = string.length() + 2;
|
|
char buffer[len];
|
|
string.toCharArray(buffer, len);
|
|
return drawCentreString(buffer, dX, poY, font);
|
|
}
|
|
|
|
int16_t TFT_eSPI::drawCentreString(const char *string, int32_t dX, int32_t poY, uint8_t font)
|
|
{
|
|
uint8_t tempdatum = textdatum;
|
|
int32_t sumX = 0;
|
|
textdatum = TC_DATUM;
|
|
sumX = drawString(string, dX, poY, font);
|
|
textdatum = tempdatum;
|
|
return sumX;
|
|
}
|
|
|
|
|
|
/***************************************************************************************
|
|
** Function name: drawRightString (deprecated, use setTextDatum())
|
|
** Descriptions: draw string right justified to dX
|
|
***************************************************************************************/
|
|
int16_t TFT_eSPI::drawRightString(const String& string, int32_t dX, int32_t poY, uint8_t font)
|
|
{
|
|
int16_t len = string.length() + 2;
|
|
char buffer[len];
|
|
string.toCharArray(buffer, len);
|
|
return drawRightString(buffer, dX, poY, font);
|
|
}
|
|
|
|
int16_t TFT_eSPI::drawRightString(const char *string, int32_t dX, int32_t poY, uint8_t font)
|
|
{
|
|
uint8_t tempdatum = textdatum;
|
|
int16_t sumX = 0;
|
|
textdatum = TR_DATUM;
|
|
sumX = drawString(string, dX, poY, font);
|
|
textdatum = tempdatum;
|
|
return sumX;
|
|
}
|
|
|
|
|
|
/***************************************************************************************
|
|
** Function name: drawNumber
|
|
** Description: draw a long integer
|
|
***************************************************************************************/
|
|
int16_t TFT_eSPI::drawNumber(long long_num, int32_t poX, int32_t poY)
|
|
{
|
|
isDigits = true; // Eliminate jiggle in monospaced fonts
|
|
char str[12];
|
|
ltoa(long_num, str, 10);
|
|
return drawString(str, poX, poY, textfont);
|
|
}
|
|
|
|
int16_t TFT_eSPI::drawNumber(long long_num, int32_t poX, int32_t poY, uint8_t font)
|
|
{
|
|
isDigits = true; // Eliminate jiggle in monospaced fonts
|
|
char str[12];
|
|
ltoa(long_num, str, 10);
|
|
return drawString(str, poX, poY, font);
|
|
}
|
|
|
|
|
|
/***************************************************************************************
|
|
** Function name: drawFloat
|
|
** Descriptions: drawFloat, prints 7 non zero digits maximum
|
|
***************************************************************************************/
|
|
// Assemble and print a string, this permits alignment relative to a datum
|
|
// looks complicated but much more compact and actually faster than using print class
|
|
int16_t TFT_eSPI::drawFloat(float floatNumber, uint8_t dp, int32_t poX, int32_t poY)
|
|
{
|
|
return drawFloat(floatNumber, dp, poX, poY, textfont);
|
|
}
|
|
|
|
int16_t TFT_eSPI::drawFloat(float floatNumber, uint8_t dp, int32_t poX, int32_t poY, uint8_t font)
|
|
{
|
|
isDigits = true;
|
|
char str[14]; // Array to contain decimal string
|
|
uint8_t ptr = 0; // Initialise pointer for array
|
|
int8_t digits = 1; // Count the digits to avoid array overflow
|
|
float rounding = 0.5; // Round up down delta
|
|
|
|
if (dp > 7) dp = 7; // Limit the size of decimal portion
|
|
|
|
// Adjust the rounding value
|
|
for (uint8_t i = 0; i < dp; ++i) rounding /= 10.0;
|
|
|
|
if (floatNumber < -rounding) { // add sign, avoid adding - sign to 0.0!
|
|
str[ptr++] = '-'; // Negative number
|
|
str[ptr] = 0; // Put a null in the array as a precaution
|
|
digits = 0; // Set digits to 0 to compensate so pointer value can be used later
|
|
floatNumber = -floatNumber; // Make positive
|
|
}
|
|
|
|
floatNumber += rounding; // Round up or down
|
|
|
|
// For error put ... in string and return (all TFT_eSPI library fonts contain . character)
|
|
if (floatNumber >= 2147483647) {
|
|
strcpy(str, "...");
|
|
return drawString(str, poX, poY, font);
|
|
}
|
|
// No chance of overflow from here on
|
|
|
|
// Get integer part
|
|
uint32_t temp = (uint32_t)floatNumber;
|
|
|
|
// Put integer part into array
|
|
ltoa(temp, str + ptr, 10);
|
|
|
|
// Find out where the null is to get the digit count loaded
|
|
while ((uint8_t)str[ptr] != 0) ptr++; // Move the pointer along
|
|
digits += ptr; // Count the digits
|
|
|
|
str[ptr++] = '.'; // Add decimal point
|
|
str[ptr] = '0'; // Add a dummy zero
|
|
str[ptr + 1] = 0; // Add a null but don't increment pointer so it can be overwritten
|
|
|
|
// Get the decimal portion
|
|
floatNumber = floatNumber - temp;
|
|
|
|
// Get decimal digits one by one and put in array
|
|
// Limit digit count so we don't get a false sense of resolution
|
|
uint8_t i = 0;
|
|
while ((i < dp) && (digits < 9)) { // while (i < dp) for no limit but array size must be increased
|
|
i++;
|
|
floatNumber *= 10; // for the next decimal
|
|
temp = floatNumber; // get the decimal
|
|
ltoa(temp, str + ptr, 10);
|
|
ptr++; digits++; // Increment pointer and digits count
|
|
floatNumber -= temp; // Remove that digit
|
|
}
|
|
|
|
// Finally we can plot the string and return pixel length
|
|
return drawString(str, poX, poY, font);
|
|
}
|
|
|
|
|
|
/***************************************************************************************
|
|
** Function name: setFreeFont
|
|
** Descriptions: Sets the GFX free font to use
|
|
***************************************************************************************/
|
|
|
|
#ifdef LOAD_GFXFF
|
|
|
|
void TFT_eSPI::setFreeFont(const GFXfont *f)
|
|
{
|
|
if (f == nullptr) { // Fix issue #400 (ESP32 crash)
|
|
setTextFont(1); // Use GLCD font
|
|
return;
|
|
}
|
|
|
|
textfont = 1;
|
|
gfxFont = (GFXfont *)f;
|
|
|
|
glyph_ab = 0;
|
|
glyph_bb = 0;
|
|
uint16_t numChars = pgm_read_word(&gfxFont->last) - pgm_read_word(&gfxFont->first);
|
|
|
|
// Find the biggest above and below baseline offsets
|
|
for (uint8_t c = 0; c < numChars; c++) {
|
|
GFXglyph *glyph1 = &(((GFXglyph *)pgm_read_dword(&gfxFont->glyph))[c]);
|
|
int8_t ab = -pgm_read_byte(&glyph1->yOffset);
|
|
if (ab > glyph_ab) glyph_ab = ab;
|
|
int8_t bb = pgm_read_byte(&glyph1->height) - ab;
|
|
if (bb > glyph_bb) glyph_bb = bb;
|
|
}
|
|
}
|
|
|
|
|
|
/***************************************************************************************
|
|
** Function name: setTextFont
|
|
** Description: Set the font for the print stream
|
|
***************************************************************************************/
|
|
void TFT_eSPI::setTextFont(uint8_t f)
|
|
{
|
|
textfont = (f > 0) ? f : 1; // Don't allow font 0
|
|
gfxFont = NULL;
|
|
}
|
|
|
|
#else
|
|
|
|
|
|
/***************************************************************************************
|
|
** Function name: setFreeFont
|
|
** Descriptions: Sets the GFX free font to use
|
|
***************************************************************************************/
|
|
|
|
// Alternative to setTextFont() so we don't need two different named functions
|
|
void TFT_eSPI::setFreeFont(uint8_t font)
|
|
{
|
|
setTextFont(font);
|
|
}
|
|
|
|
|
|
/***************************************************************************************
|
|
** Function name: setTextFont
|
|
** Description: Set the font for the print stream
|
|
***************************************************************************************/
|
|
void TFT_eSPI::setTextFont(uint8_t f)
|
|
{
|
|
textfont = (f > 0) ? f : 1; // Don't allow font 0
|
|
}
|
|
#endif
|
|
|
|
|
|
/***************************************************************************************
|
|
** Function name: getSPIinstance
|
|
** Description: Get the instance of the SPI class
|
|
***************************************************************************************/
|
|
#if !defined (TFT_PARALLEL_8_BIT)
|
|
SPIClass& TFT_eSPI::getSPIinstance(void)
|
|
{
|
|
return spi;
|
|
}
|
|
#endif
|
|
|
|
/***************************************************************************************
|
|
** Function name: getSetup
|
|
** Description: Get the setup details for diagnostic and sketch access
|
|
***************************************************************************************/
|
|
void TFT_eSPI::getSetup(setup_t &tft_settings)
|
|
{
|
|
// tft_settings.version is set in header file
|
|
|
|
#if defined (PROCESSOR_ID)
|
|
tft_settings.esp = PROCESSOR_ID;
|
|
#else
|
|
tft_settings.esp = -1;
|
|
#endif
|
|
|
|
#if defined (SUPPORT_TRANSACTIONS)
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tft_settings.trans = true;
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#else
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tft_settings.trans = false;
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#endif
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#if defined (TFT_PARALLEL_8_BIT)
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tft_settings.serial = false;
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tft_settings.tft_spi_freq = 0;
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#else
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tft_settings.serial = true;
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tft_settings.tft_spi_freq = SPI_FREQUENCY/100000;
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#ifdef SPI_READ_FREQUENCY
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tft_settings.tft_rd_freq = SPI_READ_FREQUENCY/100000;
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#endif
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#endif
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#if defined(TFT_SPI_OVERLAP)
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tft_settings.overlap = true;
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#else
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tft_settings.overlap = false;
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#endif
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tft_settings.tft_driver = TFT_DRIVER;
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tft_settings.tft_width = _init_width;
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tft_settings.tft_height = _init_height;
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#ifdef CGRAM_OFFSET
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tft_settings.r0_x_offset = colstart;
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tft_settings.r0_y_offset = rowstart;
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tft_settings.r1_x_offset = 0;
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tft_settings.r1_y_offset = 0;
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tft_settings.r2_x_offset = 0;
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tft_settings.r2_y_offset = 0;
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tft_settings.r3_x_offset = 0;
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tft_settings.r3_y_offset = 0;
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#else
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tft_settings.r0_x_offset = 0;
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tft_settings.r0_y_offset = 0;
|
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tft_settings.r1_x_offset = 0;
|
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tft_settings.r1_y_offset = 0;
|
|
tft_settings.r2_x_offset = 0;
|
|
tft_settings.r2_y_offset = 0;
|
|
tft_settings.r3_x_offset = 0;
|
|
tft_settings.r3_y_offset = 0;
|
|
#endif
|
|
|
|
#if defined (TFT_MOSI)
|
|
tft_settings.pin_tft_mosi = TFT_MOSI;
|
|
#else
|
|
tft_settings.pin_tft_mosi = -1;
|
|
#endif
|
|
|
|
#if defined (TFT_MISO)
|
|
tft_settings.pin_tft_miso = TFT_MISO;
|
|
#else
|
|
tft_settings.pin_tft_miso = -1;
|
|
#endif
|
|
|
|
#if defined (TFT_SCLK)
|
|
tft_settings.pin_tft_clk = TFT_SCLK;
|
|
#else
|
|
tft_settings.pin_tft_clk = -1;
|
|
#endif
|
|
|
|
#if defined (TFT_CS)
|
|
tft_settings.pin_tft_cs = TFT_CS;
|
|
#else
|
|
tft_settings.pin_tft_cs = -1;
|
|
#endif
|
|
|
|
#if defined (TFT_DC)
|
|
tft_settings.pin_tft_dc = TFT_DC;
|
|
#else
|
|
tft_settings.pin_tft_dc = -1;
|
|
#endif
|
|
|
|
#if defined (TFT_RD)
|
|
tft_settings.pin_tft_rd = TFT_RD;
|
|
#else
|
|
tft_settings.pin_tft_rd = -1;
|
|
#endif
|
|
|
|
#if defined (TFT_WR)
|
|
tft_settings.pin_tft_wr = TFT_WR;
|
|
#else
|
|
tft_settings.pin_tft_wr = -1;
|
|
#endif
|
|
|
|
#if defined (TFT_RST)
|
|
tft_settings.pin_tft_rst = TFT_RST;
|
|
#else
|
|
tft_settings.pin_tft_rst = -1;
|
|
#endif
|
|
|
|
#if defined (TFT_PARALLEL_8_BIT)
|
|
tft_settings.pin_tft_d0 = TFT_D0;
|
|
tft_settings.pin_tft_d1 = TFT_D1;
|
|
tft_settings.pin_tft_d2 = TFT_D2;
|
|
tft_settings.pin_tft_d3 = TFT_D3;
|
|
tft_settings.pin_tft_d4 = TFT_D4;
|
|
tft_settings.pin_tft_d5 = TFT_D5;
|
|
tft_settings.pin_tft_d6 = TFT_D6;
|
|
tft_settings.pin_tft_d7 = TFT_D7;
|
|
#else
|
|
tft_settings.pin_tft_d0 = -1;
|
|
tft_settings.pin_tft_d1 = -1;
|
|
tft_settings.pin_tft_d2 = -1;
|
|
tft_settings.pin_tft_d3 = -1;
|
|
tft_settings.pin_tft_d4 = -1;
|
|
tft_settings.pin_tft_d5 = -1;
|
|
tft_settings.pin_tft_d6 = -1;
|
|
tft_settings.pin_tft_d7 = -1;
|
|
#endif
|
|
|
|
#if defined (TFT_BL)
|
|
tft_settings.pin_tft_led = TFT_BL;
|
|
#endif
|
|
|
|
#if defined (TFT_BACKLIGHT_ON)
|
|
tft_settings.pin_tft_led_on = TFT_BACKLIGHT_ON;
|
|
#endif
|
|
|
|
#if defined (TOUCH_CS)
|
|
tft_settings.pin_tch_cs = TOUCH_CS;
|
|
tft_settings.tch_spi_freq = SPI_TOUCH_FREQUENCY/100000;
|
|
#else
|
|
tft_settings.pin_tch_cs = -1;
|
|
tft_settings.tch_spi_freq = 0;
|
|
#endif
|
|
}
|
|
|
|
|
|
////////////////////////////////////////////////////////////////////////////////////////
|
|
#ifdef TOUCH_CS
|
|
#include "Extensions/Touch.cpp"
|
|
#include "Extensions/Button.cpp"
|
|
#endif
|
|
|
|
#include "Extensions/Sprite.cpp"
|
|
|
|
#ifdef SMOOTH_FONT
|
|
#include "Extensions/Smooth_font.cpp"
|
|
#endif
|
|
|
|
////////////////////////////////////////////////////////////////////////////////////////
|
|
|