Question

I am writing a program that creates an image file. I want the “original” image to be hard-coded in the program’s binary.

I was thinking…

char image[] = {
#include"image.jpg"
}

But I need to somehow convert the image into a format that can be #included into a c file as a char array?

Answer 1

Ok, use the unix tool xxd to create a c char array import of a given binary file, Like so:

$ xxd -i imgfile.dat > imgfile.h

This should produce output like:

unsigned char imgfile[] = {
  0x68, 0x65, 0x6c, 0x6c, 0x6f, 0x20, 0x77, 0x6f, 0x72, 0x6c, 0x64, 0x0a
};
unsigned int imgfile_len = 12;

See also: "#include" a text file in a C program as a char[]