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- /* Copyright (C) 1993 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.
- */
-
- /* 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);
- }
-