24 bit colour

[rowifi1]

Sorry if this is an silly question, can this library work with 24 bit colour values on my Esp32 TTGO Display board?
I'm struggling to make it display properly.

[Bodmer]

The library uses either 18 bit, or more usually 16 bit colours (5bits red, 6 bits green, 5 bits blue or "565 colours). These functions are provided for colour conversion:

  // Colour conversion
           // Convert 8 bit red, green and blue to 16 bits
  uint16_t color565(uint8_t red, uint8_t green, uint8_t blue);

           // Convert 8 bit colour to 16 bits
  uint16_t color8to16(uint8_t color332);
           // Convert 16 bit colour to 8 bits
  uint8_t  color16to8(uint16_t color565);

           // Convert 16 bit colour to/from 24 bit, R+G+B concatenated into LS 24 bits
  uint32_t color16to24(uint16_t color565);
  uint32_t color24to16(uint32_t color888);

[9Rune5]

(googling brought me here -- apologies for reviving an old thread)

What confuses me is that e.g. TFT_eSPI::drawWideLine() takes a uint32_t color parameter, which eventually ends up calling pushColor(uint16_t color). (unless the GC9A01_DRIVER is defined in which case drawPixel() gets called which indeed accepts a uint32_t color parameter)

[Bodmer]

It is for future developments.