/* Copyright (C) 2001-2006 Artifex Software, Inc.
   All Rights Reserved.
  
   This software is provided AS-IS with no warranty, either express or
   implied.

   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.,  7 Mt. Lassen Drive - Suite A-134,
   San Rafael, CA  94903, U.S.A., +1(415)492-9861, for further information.
*/

/* $Id: gdevsnfb.c 8022 2007-06-05 22:23:38Z giles $*/
/* Sony News frame buffer driver for GhostScript */
#include "gdevprn.h"
#define prn_dev ((gx_device_printer *)dev) /* needed in 5.31 et seq */
/*#include <sys/types.h> problems with ushort! */
typedef	char *	caddr_t;
typedef	long	off_t;
#include <sys/uio.h>
#include <newsiop/framebuf.h>

/* The device descriptor */
private dev_proc_open_device(sonyfb_open);
private dev_proc_output_page(sonyfb_output_page);
private dev_proc_close_device(sonyfb_close);
private gx_device_procs sonyfb_procs =
  prn_procs(sonyfb_open, sonyfb_output_page, sonyfb_close);
const gx_device_printer far_data gs_sonyfb_device =
  prn_device(sonyfb_procs, "sonyfb",
	102.4,				/* width_10ths */
	103.2,				/* height_10ths */
	100,				/* x_dpi */
	100,				/* y_dpi */
	0,0,0,0,			/* margins */
	1, 0);

private int fb_file = -1;
sPrimRect prect;

private int
sonyfb_open(gx_device *dev)
{
  sScrType stype;

  if(fb_file < 0)
    if((fb_file = open("/dev/fb", 2)) < 0)
      perror("open failed");
    else
      if(ioctl(fb_file, FBIOCGETSCRTYPE, &stype) < 0)
	perror("ioctl failed");
      else
	prect.rect = stype.visiblerect;

  return gdev_prn_open(dev);
}

private int
sonyfb_close(gx_device *dev)
{
  if(fb_file >= 0)
    {
      close(fb_file);
      fb_file = -1;
    }
  return gdev_prn_close(dev);
}

#define FRAME_WIDTH	1024

/* Send the page to the printer. */
private int
sonyfb_output_page(gx_device *dev, int num_copies, int flush)
{
  int l, i, byte_width, height;
  unsigned char *bm, *fbs, *fb;

  byte_width = (dev->width + 7) / 8;
  height = dev->height;
  bm	 = (typeof(bm))prn_dev->mem.base;

  prect.refPoint.x = 0;
  prect.refPoint.y = 0;
  prect.ptnRect = prect.rect;
  
  prect.ptnBM.type  = BM_MEM;
  prect.ptnBM.depth = 1;
  prect.ptnBM.width = (byte_width + 1) / 2;
  prect.ptnBM.rect.origin.x = 0;
  prect.ptnBM.rect.origin.y = 0;
  prect.ptnBM.rect.extent.x = byte_width * 8; /* width in 16bit words */
  prect.ptnBM.rect.extent.y = height;
  prect.ptnBM.base = (typeof(prect.ptnBM.base))bm;
  
  prect.fore_color = 1;
  prect.aux_color = 0;
  prect.planemask = FB_PLANEALL;
  prect.transp = 0;
  prect.func = BF_S;
  prect.clip = prect.rect;
  prect.drawBM.type  = BM_FB;
  prect.drawBM.depth = 1;
  prect.drawBM.width = (prect.rect.extent.x + 15) / 16;
  prect.drawBM.rect = prect.rect;
  prect.drawBM.base = 0;
  
  if(ioctl(fb_file, FBIOCRECTANGLE, &prect) < 0)
    perror("rect ioctl failed");

  return gx_finish_output_page(dev, num_copies, flush);
}