Axius/modify.txt at main · P-R-A-Y/Axius · GitHub

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lib dir: C:\Users\{YOU}\Documents\Arduino\libraries
===================================================================

Adafruit_GFX.cpp add:

/**************************************************************************/
/*!
   @brief      Draw a mirrored PROGMEM-resident 1-bit image at the specified (x,y)
   position, using the specified foreground color (unset bits are transparent).
    @param    x   Top left corner x coordinate
    @param    y   Top left corner y coordinate
    @param    bitmap  byte array with monochrome bitmap
    @param    w   Width of bitmap in pixels
    @param    h   Height of bitmap in pixels
    @param    color 16-bit 5-6-5 Color to draw with
*/
/**************************************************************************/
void Adafruit_GFX::drawBitmapMirrored(int16_t x, int16_t y, uint8_t *bitmap, int16_t w,
                                      int16_t h, uint16_t color) {

  int16_t byteWidth = (w + 7) / 8; // Bitmap scanline pad = whole byte
  uint8_t b = 0;

  startWrite();
  for (int16_t j = 0; j < h; j++, y++) {
    for (int16_t i = w; i >= 0; i--) {
      // Calculate the mirrored position
      int16_t mirrored_i = w - 1 - i;
      if (mirrored_i & 7)
        b <<= 1;
      else
        b = bitmap[j * byteWidth + mirrored_i / 8];
      if (b & 0x80)
        writePixel(x + i, y, color);
    }
  }
  endWrite();
}

===================================================================

Adafruit_GFX.h add:
void drawBitmapMirrored(int16_t x, int16_t y, uint8_t *bitmap, int16_t w,
	                int16_t h, uint16_t color);


===================================================================
for esp32

Patching platform.txt

The platform.txt for the ESP32 is commonly located under: ~/.arduino15/packages/esp32/hardware/esp32/{version}/platform.txt. Make sure you to replace {version} with the currently installed version of the ESP32 dev enviroment (for example 2.0.9). Open the file in your favourite text editor and add:

    -zmuldefs to compiler.c.elf.libs.esp32 or compiler.c.elf.libs(any text)
    -w to build.extra_flags.esp32

This will allow the c compiler to tolerate multiple definitions, which are used to bypass the deauthentication frame check in the ESP32's firmware. After this you can hit upload in the Arduino-ide.