/* Copyright (C) 1991, 1996 Aladdin Enterprises.  All rights reserved.
  
  This file is part of Aladdin Ghostscript.
  
  Aladdin Ghostscript is distributed with NO WARRANTY OF ANY KIND.  No author
  or distributor accepts any responsibility for the consequences of using it,
  or for whether it serves any particular purpose or works at all, unless he
  or she says so in writing.  Refer to the Aladdin Ghostscript Free Public
  License (the "License") for full details.
  
  Every copy of Aladdin Ghostscript must include a copy of the License,
  normally in a plain ASCII text file named PUBLIC.  The License grants you
  the right to copy, modify and redistribute Aladdin Ghostscript, but only
  under certain conditions described in the License.  Among other things, the
  License requires that the copyright notice and this notice be preserved on
  all copies.
*/

/* gdev4081.c */
/* 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);
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;
}
