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- /* Copyright (C) 1993 Aladdin Enterprises. All rights reserved.
-
- This file is part of Ghostscript.
-
- Ghostscript is distributed in the hope that it will be useful, but
- WITHOUT ANY WARRANTY. No author or distributor accepts responsibility
- to anyone for the consequences of using it or for whether it serves any
- particular purpose or works at all, unless he says so in writing. Refer
- to the Ghostscript General Public License for full details.
-
- Everyone is granted permission to copy, modify and redistribute
- Ghostscript, but only under the conditions described in the Ghostscript
- General Public License. A copy of this license is supposed to have been
- given to you along with Ghostscript so you can know your rights and
- responsibilities. It should be in a file named COPYING. Among other
- things, the copyright notice and this notice must be preserved on all
- copies. */
-
- /* gdevpcfb.c */
- /* IBM PC EGA and VGA display drivers for Ghostscript */
- /* This is fundamentally an EGA driver with some parameters */
- /* that allow it to drive larger displays. */
- #include "memory_.h"
- #include "gx.h"
- #include "gserrors.h"
- #include "gxdevice.h"
- #include "gdevpcfb.h"
-
- /* ------ Internal routines ------ */
-
- /* We can't catch signals.... */
- void
- ega_set_signals(gx_device *dev)
- {
- }
-
- /* Read the device mode */
- int
- ega_get_mode(void)
- { registers regs;
- regs.h.ah = 0xf;
- int86(0x10, ®s, ®s);
- return regs.h.al;
- }
-
- /* Set the device mode */
- void
- ega_set_mode(int mode)
- { registers regs;
- regs.h.ah = 0;
- regs.h.al = mode;
- int86(0x10, ®s, ®s);
- }
-