123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293 |
- /* Copyright (C) 1989, 1995, 1998 Aladdin Enterprises. 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 the license contained in the file LICENSE in this distribution.
-
- For more information about licensing, please refer to
- http://www.ghostscript.com/licensing/. For information on
- commercial licensing, go to http://www.artifex.com/licensing/ or
- contact Artifex Software, Inc., 101 Lucas Valley Road #110,
- San Rafael, CA 94903, U.S.A., +1(415)492-9861.
- */
- /* $Id: gdevsvga.h,v 1.5 2002/06/16 07:25:26 lpd Exp $ */
- /* Common definitions and procedures for SuperVGA drivers */
- /* Requires gdevpcfb.h */
- #ifndef gdevsvga_INCLUDED
- # define gdevsvga_INCLUDED
- /* 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_params(svga_get_params);
- dev_proc_put_params(svga_put_params);
- dev_proc_get_bits(svga_get_bits);
- dev_proc_copy_alpha(svga_copy_alpha);
- /* 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) (void);
- void (*set_mode) (int);
- void (*set_page) (gx_device_svga * fbdev, int pnum, int wnum);
- bool fixed_colors; /* if true, used a fixed palette */
- const mode_info *mode; /* BIOS display mode info */
- uint raster; /* frame buffer bytes per line */
- int current_page; /* current page */
- int wnum_read, wnum_write; /* window #s for read vs. write */
- /* Following are device-specific. */
- union {
- struct {
- void (*bios_set_page) (int, int); /* set-page function */
- int pn_shift; /* log2(64K/granularity) */
- } 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_color_device(procs, name, depth, maxv, dither, get_mode, set_mode, set_page) {\
- std_device_color_body(gx_device_svga, &procs, name,\
- 640, 480,\
- 480 / PAGE_HEIGHT_INCHES, 480 / PAGE_HEIGHT_INCHES,\
- /*dci_color(*/depth, maxv, dither/*)*/),\
- { 0 }, /* std_procs */\
- get_mode, set_mode, set_page,\
- 0 /*fixed_colors*/\
- }
- #define svga_device(procs, name, get_mode, set_mode, set_page)\
- svga_color_device(procs, name, 8, 31, 4, get_mode, set_mode, set_page)
- /* Utility procedures */
- void svga_init_colors(gx_device *);
- int svga_find_mode(gx_device *, const mode_info *);
- int svga_open(gx_device *);
- #endif /* gdevsvga_INCLUDED */
|