/* outpsfheader - auxiliary fn - not to be installed */

/* assumes a little-endian machine */

#include "config.h"

#include <stdio.h>

#include <stdlib.h> /* exit */

#include "kbd.h"

#include "psf.h"

static void __attribute__((noreturn))

usage(void)

{

	fprintf(stderr, "call: outpsfheader psftype fontsize charsize hastable\n");

	exit(1);

}

int main(int argc, char **argv)

{

	int psftype, fontsize, charsize, hastable;

	if (argc != 5)

		usage();

	psftype  = atoi(argv[1]);

	fontsize = atoi(argv[2]);

	charsize = atoi(argv[3]);

	hastable = atoi(argv[4]);

	if (psftype == 1) {

		struct psf1_header h1;

		if (fontsize != 256 && fontsize != 512)

			usage();

		h1.magic[0] = PSF1_MAGIC0;

		h1.magic[1] = PSF1_MAGIC1;

		h1.mode     = (fontsize == 256) ? 0 : PSF1_MODE512;

		if (hastable)

			h1.mode |= PSF1_MODEHASTAB;

		h1.charsize = charsize;

		if (fwrite(&h1, sizeof(h1), 1, stdout) != 1) {

			fprintf(stderr, "write error\n");

			exit(1);

		}

	} else if (psftype == 2) {

		struct psf2_header h2;

		h2.magic[0]   = PSF2_MAGIC0;

		h2.magic[1]   = PSF2_MAGIC1;

		h2.magic[2]   = PSF2_MAGIC2;

		h2.magic[3]   = PSF2_MAGIC3;

		h2.version    = 0;

		h2.headersize = sizeof(h2);

		h2.flags      = (hastable ? PSF2_HAS_UNICODE_TABLE : 0);

		h2.length     = fontsize;

		h2.charsize   = charsize;

		h2.width      = 8;

		h2.height     = charsize;

		if (fwrite(&h2, sizeof(h2), 1, stdout) != 1) {

			fprintf(stderr, "write error\n");

			exit(1);

		}

	} else

		usage();

	return 0;

}