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- /* Copyright (C) 1989, 1992 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. */
-
- /* gdevsvga.h */
- /* SuperVGA display definitions for Ghostscript */
- /* (requires gdevpcfb.h) */
-
- /* Common procedures */
-
- /* See gxdevice.h for the definitions of the procedures. */
-
- dev_proc_close_device(svga_close);
- dev_proc_map_rgb_color(svga_map_rgb_color);
- dev_proc_map_color_rgb(svga_map_color_rgb);
- dev_proc_fill_rectangle(svga_fill_rectangle);
- dev_proc_copy_mono(svga_copy_mono);
- dev_proc_copy_color(svga_copy_color);
- dev_proc_get_bits(svga_get_bits);
-
- /* Table structure for looking up graphics modes. */
- typedef struct {
- int width, height; /* "key" */
- int mode; /* "value" */
- } mode_info;
-
- /* The device descriptor structure */
- typedef struct gx_device_svga_s gx_device_svga;
- struct gx_device_svga_s {
- gx_device_common;
- int (*get_mode)(P0());
- void (*set_mode)(P1(int));
- void (*set_page)(P3(gx_device_svga *fbdev, int pnum, int wnum));
- const mode_info _ds *mode; /* BIOS display mode info */
- uint raster; /* frame buffer bytes per line */
- int page; /* current page */
- int wnum_read, wnum_write; /* window #s for read vs. write */
- /* Following are device-specific. */
- union {
- struct {
- void (*bios_set_page)(P2(int, int)); /* set-page function */
- } vesa;
- struct {
- int select_reg; /* page-select register */
- } atiw;
- struct {
- int et_model; /* 4 for ET4000, */
- /* 3 for ET3000 */
- } tseng;
- } info;
- };
-
- /* The initial parameters map an appropriate fraction of */
- /* the screen to a full-page coordinate space. */
- /* This may or may not be what is desired! */
- #define svga_device(procs, name, get_mode, set_mode, set_page) {\
- sizeof(gx_device_svga),\
- &procs,\
- name,\
- 640, 480, /* screen size */\
- 480 / PAGE_HEIGHT_INCHES, 480 / PAGE_HEIGHT_INCHES, /* resolution */\
- no_margins,\
- dci_color(8, 31, 4),\
- 0, /* not opened yet */\
- get_mode, set_mode, set_page\
- }
-
- /* Utility procedures */
- extern int svga_find_mode(P2(gx_device *, const mode_info _ds *));
- extern int svga_open(P1(gx_device *));
-