/* Copyright (C) 1991, 1996 artofcode LLC.  All rights reserved.
  
  This program is free software; you can redistribute it and/or modify it
  under the terms of the GNU General Public License as published by the
  Free Software Foundation; either version 2 of the License, or (at your
  option) any later version.

  This program is distributed in the hope that it will be useful, but
  WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  General Public License for more details.

  You should have received a copy of the GNU General Public License along
  with this program; if not, write to the Free Software Foundation, Inc.,
  59 Temple Place, Suite 330, Boston, MA, 02111-1307.

*/

/*$Id: gdev4081.c,v 1.3.2.1.2.1 2003/01/17 00:49:00 giles Exp $*/
/* Ricoh 4081 laser printer driver */
#include "gdevprn.h"

#define X_DPI 300			/* pixels per inch */
#define Y_DPI 300			/* pixels per inch */

/* The device descriptor */
private dev_proc_print_page(r4081_print_page);
const gx_device_printer far_data gs_r4081_device =
  prn_device(prn_std_procs, "r4081",
	85,				/* width_10ths, 8.5" */
	110,				/* height_10ths, 11" */
	X_DPI, Y_DPI,
	0.25, 0.16, 0.25, 0.16,		/* margins */
	1, r4081_print_page);

/* ------ Internal routines ------ */


/* Send the page to the printer. */
private int
r4081_print_page(gx_device_printer *pdev, FILE *prn_stream)
{	
	int line_size = gdev_mem_bytes_per_scan_line((gx_device *)pdev);
	int out_size = ((pdev->width + 7) & -8) ;
	byte *out = (byte *)gs_malloc(out_size, 1, "r4081_print_page(out)");
	int lnum = 0;
	int last = pdev->height;

	/* Check allocations */
	if ( out == 0 )
	{	if ( out )
			gs_free((char *)out, out_size, 1,
				"r4081_print_page(out)");
		return -1;
	}

	/* find the first line which has something to print */
	while ( lnum < last )
	{
		gdev_prn_copy_scan_lines(pdev, lnum, (byte *)out, line_size);
		if ( out[0] != 0 ||
		     memcmp((char *)out, (char *)out+1, line_size-1)
		   )
			break;
		lnum ++;
	}

	/* find the last line which has something to print */
	while (last > lnum) {
		gdev_prn_copy_scan_lines(pdev, last-1, (byte *)out, line_size);
		if ( out[0] != 0 ||
		     memcmp((char *)out, (char *)out+1, line_size-1)
		   )
			break;
		last --;
	}

	/* Initialize the printer and set the starting position. */
	fprintf(prn_stream,"\033\rP\033\022YB2 \033\022G3,%d,%d,1,1,1,%d@",
			out_size, last-lnum, (lnum+1)*720/Y_DPI);

	/* Print lines of graphics */
	while ( lnum < last )
	   {
		gdev_prn_copy_scan_lines(pdev, lnum, (byte *)out, line_size);
		fwrite(out, sizeof(char), line_size, prn_stream);
		lnum ++;
	   }

	/* Eject the page and reinitialize the printer */
	fputs("\f\033\rP", prn_stream);

	gs_free((char *)out, out_size, 1, "r4081_print_page(out)");
	return 0;
}