/* Simple scanner test utility
   Redirect stdout to file
   Do a colour scan

   e.g.
   scantest > data.pbm
*/

#include <stdio.h>

main()
{
        int rc;
        int a,b;

        int dpi;

	FILE *fopen(), *fp_out, *fp_in;

	a = 0;

	fp_out = fopen ("/dev/usb/scanner0", "wb");


	if (fp_out == NULL)
	{
		printf ("\nError");
		goto exit;
        }

/* Do a reset */
        rc = fprintf(fp_out, "\033zE");

	fprintf (stderr, "\nfprintf returns %d", rc); 

        fprintf (stderr, "\nEnter DPI: ");

        scanf ("%d", &dpi);

/* set resolution, in DPI */
        fprintf(fp_out, "\033*a%dR", dpi);
        fprintf(fp_out, "\033*a%dS", dpi);

/* set scan extents, in 1/720'ths of an inch 

        fprintf(fp_out, "\033*f%dX", 0);
        fprintf(fp_out, "\033*f%dY", 0);
        fprintf(fp_out, "\033*f%dP", 1440);     /* x */
        fprintf(fp_out, "\033*f%dQ", 1440);     /* y */

/* set output data type to colour */
        fprintf(fp_out, "\033*a%dT", 5);

/* set inverse image */
	fprintf(fp_out, "\033*a%dI", 1);
   
/* Do a scan */
	rc = fprintf(fp_out, "\033*f0S"); 

	fprintf (stderr, "\nfprintf returns %d", rc);

	fclose (fp_out);

/* Open scanner for reading input */
        fp_in = fopen ("/dev/usb/scanner0","rb");
         if (fp_in == NULL)
         {
 	  printf ("\nRead Error\n");
 	  goto exit;
         }

/* Header for PPM file */
   printf("P6\n1440 1440 255\n");
        

        while (a != EOF)
        {
                a = fgetc(fp_in);
                putchar (a);
        }

        fclose (fp_in);

	fprintf (stderr, "\nScan complete\n", rc);

	exit:;
}