ref: 216c1ae66ef6967d1a470a431418241c001c708b
dir: /u/vid_dos.h/
/*
Copyright (C) 1996-1997 Id Software, Inc.
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
// vid_dos.h: header file for DOS-specific video stuff
typedef struct vmode_s {
struct vmode_s *pnext;
char *name;
char *header;
unsigned width;
unsigned height;
float aspect;
unsigned rowbytes;
int planar;
int numpages;
void *pextradata;
int (*setmode)(viddef_t *vid, struct vmode_s *pcurrentmode);
void (*swapbuffers)(viddef_t *vid, struct vmode_s *pcurrentmode,
vrect_t *rects);
void (*setpalette)(viddef_t *vid, struct vmode_s *pcurrentmode,
unsigned char *palette);
void (*begindirectrect)(viddef_t *vid, struct vmode_s *pcurrentmode,
int x, int y, byte *pbitmap, int width,
int height);
void (*enddirectrect)(viddef_t *vid, struct vmode_s *pcurrentmode,
int x, int y, int width, int height);
} vmode_t;
// vid_wait settings
#define VID_WAIT_NONE 0
#define VID_WAIT_VSYNC 1
#define VID_WAIT_DISPLAY_ENABLE 2
extern int numvidmodes;
extern vmode_t *pvidmodes;
extern int VGA_width, VGA_height, VGA_rowbytes, VGA_bufferrowbytes;
extern byte *VGA_pagebase;
extern vmode_t *VGA_pcurmode;
extern cvar_t vid_wait;
extern cvar_t vid_nopageflip;
extern cvar_t _vid_wait_override;
extern unsigned char colormap256[32][256];
extern void *vid_surfcache;
extern int vid_surfcachesize;
void VGA_Init (void);
void VID_InitVESA (void);
void VID_InitExtra (void);
void VGA_WaitVsync (void);
void VGA_ClearVideoMem (int planar);
void VGA_SetPalette(viddef_t *vid, vmode_t *pcurrentmode, unsigned char *pal);
void VGA_SwapBuffersCopy (viddef_t *vid, vmode_t *pcurrentmode,
vrect_t *rects);
qboolean VGA_FreeAndAllocVidbuffer (viddef_t *vid, int allocnewbuffer);
qboolean VGA_CheckAdequateMem (int width, int height, int rowbytes,
int allocnewbuffer);
void VGA_BeginDirectRect (viddef_t *vid, struct vmode_s *pcurrentmode, int x,
int y, byte *pbitmap, int width, int height);
void VGA_EndDirectRect (viddef_t *vid, struct vmode_s *pcurrentmode, int x,
int y, int width, int height);
void VGA_UpdateLinearScreen (void *srcptr, void *destptr, int width,
int height, int srcrowbytes, int destrowbytes);