adafruit/Adafruit-GFX-Library — pull request #31 by subsonicpulse (2014-04-15 20:47:06+00:00)
Title: Add XBitmap support

Draw XBitMap Files (*.xbm), exported from GIMP,
Usage:
Export from GIMP to *.xbm, rename *.xbm to *.c and open in editor.
C Array can be directly used with this function
void Adafruit_GFX::drawXBitmap(int16_t x, int16_t y,
const uint8_t *bitmap, int16_t w, int16_t h,
uint16_t color)