void gen_image(unsigned char *pixels, int xsz, int ysz);
unsigned char *load_compressed_image(const char *fname, int *cszptr, int *xszptr, int *yszptr);
int dump_compressed_image(const char *fname, unsigned char *data, int size, int w, int h);
void gen_image(unsigned char *pixels, int xsz, int ysz);
unsigned char *load_compressed_image(const char *fname, int *cszptr, int *xszptr, int *yszptr);
int dump_compressed_image(const char *fname, unsigned char *data, int size, int w, int h);