############# UNTESTED ################### ** Function name: tft_Read_8 ** Description: STM32 software SPI to read bidirectional

** Function name: pushImage ** Description: push image into a defined area of a sprite *****************************************

** Function name: pushPixels - for ESP32 or ESP8266 RPi TFT ** Description: Write a sequence of pixels *************************

** Function name: read byte - supports class functions ** Description: Read a byte from ESP32 8 bit data port *****************

** Function name: setSwapBytes ** Description: Used by 16 bit pushImage() to swap byte order in colours ************************

** Function name: pushBlock - for ESP32 or ESP8266 RPi TFT ** Description: Write a block of pixels of the same colour **********

** Function name: GPIO direction control - supports class functions ** Description: Set ESP32 GPIO pin to input or output (set

** Function name: GPIO direction control - supports class functions ** Description: Set parallel bus to INPUT or OUTPUT *******

** Function name: begin ** Description: Included for backwards compatibility ***************************************************

** Function name: height ** Description: Return the height of sprite ***********************************************************

** Function name: width ** Description: Return the width of sprite *************************************************************

** Function name: getSwapBytes ** Description: Return the swap byte order for colours ******************************************

** Function name: beginSDA ** Description: Detach SPI from pin to permit software SPI ******************************************

** Function name: dmaWait ** Description: Wait until DMA is over (blocking!) ***************************************************

** Function name: endWrite ** Description: end transaction with CS high ********************************************************

** Function name: endSDA ** Description: Attach SPI pins after software SPI ****************************************************

** Function name: setWindow ** Description: Set the bounds of a window in the sprite *******************************************

** Function name: startWrite ** Description: begin transaction with CS low, MUST later call endWrite ***************************

** Function name: GPIO direction control - supports class functions ** Description: Set parallel bus to INPUT or OUTPUT *******

** Function name: drawPixel ** Description: push a single pixel at an arbitrary position ***************************************

** Function name: drawString (with or without user defined font) ** Description : draw string with padding if it is defined *****

** Function name: getUnicodeIndex ** Description: Get the font file index of a Unicode character *******************************

** Function name: setTextDatum ** Description: Set the text position reference datum *******************************************

** Function name: setTextPadding ** Description: Define padding width (aids erasing old text and numbers) **********************

** Function name: created ** Description: Returns true if sprite has been created **********************************************

** Function name: drawRoundRect ** Description: Draw a rounded corner rectangle outline ****************************************

** Function name: fillRoundRect ** Description: Draw a rounded corner filled rectangle *****************************************

** Function name: getTextDatum ** Description: Return the text datum value (as used by setTextDatum()) *************************

** Function name: pushColor ** Description: Send a new pixel to the set window *************************************************

** Function name: pushSwapBytePixels - for ESP32 ** Description: Write a sequence of pixels with swapped bytes *****************

** Function name: pushSwapBytePixels - for ESP32 or ESP8266 RPi TFT ** Description: Write a sequence of pixels with swapped byte

** Function name: setTextColor ** Description: Set the font foreground colour (background is transparent) **********************

** Function name: setTextSize ** Description: Set the text size multiplier *****************************************************

** Function name: deleteMetrics ** Description: Delete the old glyph metrics and free up the memory ****************************

** Function name: write ** Description: draw characters piped through serial stream ********************************************

** Function name: TFT_eSPI ** Description: Constructor , we must use hardware SPI pins *****************************************

** Code for the GFX button UI element ** Grabbed from Adafruit_GFX library and enhanced to handle any label font *************************************

** Function name: TFT_eSprite ** Description: Class constructor ****************************************************************

** Function name: alphaBlend ** Description: Blend 16bit foreground and background *********************************************

** Function name: alphaBlend ** Description: Blend 24bit foreground and background with optional dither ************************

** Function name: beginSDA ** Description: Detach SPI from pin to permit software SPI ******************************************

** Function name: beginSDA ** Description: Detach SPI from pin to permit software SPI ******************************************

############# UNTESTED ################### ** Function name: beginSDA ** Description: Detach SPI from pin to permit software SPI

** Function name: begin_tft_read (was called spi_begin_read) ** Description: Start transaction for reads and select TFT *******

** Function name: begin_tft_write (was called spi_begin) ** Description: Start SPI transaction for writes and select TFT *******

** Function name: begin_touch_read_write - was spi_begin_touch ** Description: Start transaction and select touch controller ***

** Function name: GPIO direction control - supports class functions ** Description: Set parallel bus to INPUT or OUTPUT *******

** Function name: calibrateTouch ** Description: generates calibration parameters for touchscreen. ****************************

** Function name: color16to24 ** Description: convert 16 bit colour to a 24 bit 888 colour value *******************************

** Function name: color16to8 ** Description: convert 16 bit colour to an 8 bit 332 RGB colour value ****************************

** Function name: color24to16 ** Description: convert 24 bit colour to a 16 bit 565 colour value *******************************

** Function name: color565 ** Description: convert three 8 bit RGB levels to a 16 bit colour value *****************************

** Function name: color8to16 ** Description: convert 8 bit colour to a 16 bit 565 colour value *********************************

** Function name: commandList, used for FLASH based lists only (e.g. ST7735) ** Description: Get initialisation commands from FL

** Function name: convertRawXY ** Description: convert raw touch x,y values to screen coordinates *****************************

** Function name: createSprite ** Description: Create a sprite (bitmap) of defined width and height ****************************

** Function name: deInitDMA ** Description: Disconnect the DMA engine from SPI *************************************************

** Function name: deInitDMA ** Description: Disconnect the DMA engine from SPI *************************************************

** Function name: deleteSprite ** Description: Delete the sprite to free up memory (RAM) ***************************************

** Function name: dmaBusy ** Description: Check if DMA is busy *****************************************************************

** Function name: dmaBusy ** Description: Check if DMA is busy (usefully non-blocking!) ****************************************

** Function name: drawBitmap ** Description: Draw an image stored in an array on the TFT ***************************************

** Function name: drawCentreString (deprecated, use setTextDatum()) ** Descriptions: draw string centred on dX ******************

** Function name: drawChar ** Description: draw a Unicode glyph onto the screen ************************************************

** Function name: drawChar ** Description: draw a unicode onto the screen ******************************************************

** Function name: drawCircle ** Description: Draw a circle outline *************************************************************

** Function name: drawCircleHelper ** Description: Support function for drawRoundRect() ****************************************

** Function name: drawEllipse ** Description: Draw a ellipse outline ***********************************************************

** Function name: drawFastHLine ** Description: draw a horizontal line *********************************************************

** Function name: drawFastHLine ** Description: draw a horizontal line *********************************************************

** Function name: drawFastVLine ** Description: draw a vertical line ***********************************************************

** Function name: drawFastVLine ** Description: draw a vertical line ***********************************************************

** Function name: drawFloat ** Descriptions: drawFloat, prints 7 non zero digits maximum ****************************************

** Function name: drawGlyph ** Description: Write a character to the sprite cursor position ************************************

** Function name: drawGlyph ** Description: Write a character to the TFT cursor position ***************************************

** Function name: drawLine ** Description: draw a line between 2 arbitrary points **********************************************

** Function name: drawLine ** Description: draw a line between 2 arbitrary points **********************************************

** Function name: drawNumber ** Description: draw a long integer ***************************************************************

** Function name: drawPixel ** Description: push a single pixel at an arbitrary position ***************************************

** Function name: drawRect ** Description: Draw a rectangle outline ************************************************************

** Function name: drawRightString (deprecated, use setTextDatum()) ** Descriptions: draw string right justified to dX ***********

** Function name: drawTriangle ** Description: Draw a triangle outline using 3 arbitrary points ********************************

** Function name: drawXBitmap ** Description: Draw an image stored in an XBM array onto the TFT ********************************

** Function name: endSDA ** Description: Attach SPI pins after software SPI ****************************************************

** Function name: endSDA ** Description: Attach SPI pins after software SPI ****************************************************

############# UNTESTED ################### ** Function name: endSDA ** Description: Attach SPI pins after software SPI *********

** Function name: end_tft_read (was called spi_end_read) ** Description: End transaction for reads and deselect TFT ************