Cabi

Arduboy encoder: Monochrome rle encoding by Zep @lexaloffle

This tool is used for creating a compressed array from an image (png)

The function to decompress in Arduino (Arduboy) can be found here:

https://github.com/TEAMarg/drawCompressed

to build:

gcc cabi.c lodepng.c -o cabi

to use:

cabi input_file.png [array_name_prefix]

Look at the compress ratio, before using the compressed data, it might be worse in some cases (above 1 is bad)

ouput:

// input_file.png  width: 128 height: 48
const uint8_t PROGMEM array_name_prefix[] = {
  0x7f,0x2f,0x30,0x68,0xb7,0xdb,0xed,0xdb,0x53,0x9f,0xfa,0x73,0x97,0xbb,0xd5,0xe7,
  0x2e,0x77,0xb9,0xcb,0x5d,0x6e,0xbb,0xbd,0xdc,0xe5,0x2e,0x77,0xb9,0xcb,0x5d,0xee,
  0x72,0x97,0x5b,0x2b,0xbb,0xdc,0x6e,0xb7,0xdb,0xed,0x76,0xbb,0xdd,0x6e,0xb7,0xdb,
  0xed,0x76,0xbb,0xdd,0x6e,0xb7,0xca,0xae,0x43,0x57,0x76,0xbb,0x5d,0x6e,0xb7,0xdb,
  0xed,0x76,0xbb,0xdd,0x6e,0xb7,0xdb,0xad,0xb2,0xdb,0x75,0xd8,0x5a,0x2a,0xb9,0xdd,
  0x6e,0xb7,0xeb,0x75,0x74,0xd9,0xe5,0x72,0xf9,0xfd,0xdf,0xea,0x72,0x57,0x77,0x75,
  0x97,0x3b,0x6d,0x95,0x93,0xca,0x2a,0xbb,0x0e,0xbf,0x6d,0x6f,0x75,0xab,0xed,0xb9,
  0x5c,0x77,0x2a,0xcf,0x9f,0x76,0xda,0xd5,0xad,0x4e,0xf7,0xaa,0x57,0xe9,0x74,0x3a,
  0x9d,0xbb,0xa4,0xc2,0xd1,0x76,0xb6,0xb4,0xd3,0x2e,0x9f,0x5e,0x5a,0x85,0xbc,0x74,
  0x3a,0x9d,0x4e,0xa7,0x3b,0x67,0x57,0x5b,0xaf,0x93,0x4a,0xb9,0x9d,0x52,0xca,0x2d,
  0x97,0xdb,0x74,0x6c,0x49,0xe5,0x9c,0x92,0x4a,0x2a,0xa9,0xa4,0x53,0x84,0xe9,0xf4,
  0xea,0x53,0xbf,0x56,0x2a,0x65,0xed,0x6e,0xa7,0x94,0x52,0x4a,0x46,0x9f,0x5e,0xaf,
  0x97,0xcb,0x6d,0xbc,0x4b,0xe7,0x5c,0xff,0x13,0x7a,0x9f,0xde,0xce,0xbe,0xd6,0xb9,
  0xee,0xd4,0xae,0x3b,0xb5,0x6e,0x7b,0xab,0x5b,0x8d,0x24,0x25,0x4b,0x29,0x95,0x4a,
  0x76,0x56,0x3a,0x1d,0xdb,0xce,0xcd,0x96,0x4e,0xa7,0xd3,0xe9,0xec,0x4e,0x4a,0xe9,
  0xec,0x08,0xdb,0x3a,0x67,0xe7,0x52,0xb3,0x29,0x2d,0xf5,0xa8,0x4b,0xa7,0xd3,0xe9,
  0x74,0xce,0xb9,0x5b,0x2f,0xdd,0x6a,0x87,0xac,0xa4,0x2a,0x25,0x95,0x54,0x52,0x49,
  0x25,0xed,0x36,0xa4,0xed,0xdc,0x64,0x49,0xa5,0x64,0xc8,0x5a,0x2a,0x1d,0xda,0xc2,
  0x1b,0x11,0x06,0xb9,0x2a,0x95,0x4c,0x55,0x2a,0xa2,0xc6,0xd5,0xea,0x56,0xb7,0xdd,
  0x6e,0xb7,0x4a,0x4a,0x55,0xa5,0x2a,0x95,0x52,0x2a,0x55,0xc9,0x54,0xaa,0x92,0xa9,
  0x54,0x25,0x53,0x29,0xa5,0xdd,0xf4,0x69,0x25,0xa5,0x54,0xed,0x5c,0xe7,0x3a,0xe7,
  0x9c,0x73,0x4a,0x2a,0x3b,0x15,0x51,0x52,0xf1,0x79,0xa5,0xd3,0x49,0x25,0x95,0xdc,
  0x6e,0xb7,0xdb,0xed,0x36,0x9d,0xce,0x6e,0xff,0xff,0xd3,0xa7,0x75,0x3a,0x1d,0xd9,
  0xce,0x39,0xe7,0x1c,0xd3,0xce,0x39,0xe7,0x9c,0xeb,0x5c,0xe7,0x9c,0x73,0x6e,0xf2,
  0xa4,0x54,0x52,0x2a,0xbb,0xdd,0x6e,0x2f,0xad,0xb4,0xd2,0xf9,0xb4,0x72,0x4e,0x6e,
  0x63,0x95,0xce,0x39,0xa9,0x3e,0xf5,0x6f,0x8f,0x08,0x87,0x64,0xc9,0x54,0x32,0xa2,
  0xb6,0xdb,0xed,0xea,0x56,0xb7,0x3d,0x9d,0x4e,0xa7,0x5b,0x5d,0x77,0x4a,0xb9,0xfe,
  0xa7,0x4a,0xd6,0xd2,0x29,0xd5,0x5d,0xab,0x63,0xeb,0x55,0xaf,0xf2,0x4a,0x72,0xef,
  0xdc,0x76,0xbb,0x5d,0x6e,0xb7,0x4a,0x2a,0xe7,0x56,0x3b,0x19,0xd1,0x76,0x2e,0x65,
  0xb7,0xdb,0xd5,0xbd,0xea,0x5c,0xe7,0x3a,0x9d,0xdd,0x6e,0xb7,0x5b,0x25,0x9d,0xb3,
  0xe9,0x94,0x54,0x52,0x49,0x25,0x95,0x54,0xaa,0x94,0x2a,0x25,0x95,0x54,0xd2,0x59,
  0x75,0xdb,0xed,0xae,0x5e,0x75,0xae,0x73,0x9d,0xeb,0xd4,0xa7,0x3e,0xf5,0xb9,0xda,
  0xee,0xa4,0xb4,0xca,0x6e,0xb7,0xdb,0xad,0x73,0xee,0xda,0x39,0xbb,0xba,0xb7,0x53,
  0x25,0x95,0xdc,0x2e,0x95,0x53,0xf6,0x72,0x97,0x93,0x4a,0x3a,0xa9,0xa4,0x3a,0xa5,
  0x7a,0x95,0xfa,0x5c,0xa7,0xd3,0x69,0xae,0xed,0x2a,0xa9,0x64,0x25,0x95,0x4e,0xa7,
  0xd3,0xe9,0xd0,0x97,0x5e,0x67,0xb7,0xa1,0x69,0x9d,0x1d,0xcb,0xe9,0xed,0x36,0x34,
  0xea,0x74,0x3a,0x9d,0x56,0x4a,0x2a,0xa9,0x94,0x4e,0xa7,0x53,0x44,0x4a,0x56,0xa9,
  0xaa,0x54,0x2a,0x25,0x75,0x5a,0x6d,0x95,0x74,0xeb,0x74,0xe7,0x8a,0x4a,0xc9,0x2a,
  0x55,0x95,0x4a,0xa5,0xa4,0x56,0xd2,0x39,0xe7,0xb6,0xdb,0xed,0xf6,0xed,0x29,0x59,
  0xc9,0x4a,0x2a,0xe2,0x74,0xb4,0xe9,0xd0,0xb5,0xce,0x8e,0xfd,0x74,0x3a,0xb4,0x01
};
// bytes:640 ratio: 0.833


const uint8_t PROGMEM array_name_prefix_mask[] = {
  0x7f,0x2f,0x81,0xff,0x17
};
// bytes:5 ratio: 0.007