/* Portions Copyright (C) 2001 artofcode LLC.
   Portions Copyright (C) 1996, 2001 Artifex Software Inc.
   Portions Copyright (C) 1988, 2000 Aladdin Enterprises.
   This software is based in part on the work of the Independent JPEG Group.
   All Rights Reserved.

   This software is distributed under license and may not be copied, modified
   or distributed except as expressly authorized under the terms of that
   license.  Refer to licensing information at http://www.artifex.com/ or
   contact Artifex Software, Inc., 101 Lucas Valley Road #110,
   San Rafael, CA  94903, (415)492-9861, for further information. */

/*$RCSfile: gdev4081.c,v $ $Revision: 1.8 $*/
/* 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;
}
