| 19 |
|
#define GAMMA 2.2 /* exponent for color correction */ |
| 20 |
|
|
| 21 |
|
|
| 22 |
< |
int vga_close(), vga_clear(), vga_paintr(), vga_comout(), vga_comin(); |
| 22 |
> |
int vga_close(), vga_clear(), vga_paintr(), vga_comout(), vga_errout(), |
| 23 |
> |
vga_comin(); |
| 24 |
|
|
| 25 |
|
static struct driver vga_driver = { |
| 26 |
|
vga_close, vga_clear, vga_paintr, NULL, |
| 27 |
< |
vga_comout, vga_comin, NULL |
| 27 |
> |
vga_comout, vga_comin, NULL, 1.0 |
| 28 |
|
}; |
| 29 |
|
|
| 30 |
+ |
static char fatalerr[128]; |
| 31 |
+ |
|
| 32 |
|
static struct videoconfig config; |
| 33 |
|
|
| 34 |
+ |
extern char *getenv(); |
| 35 |
|
|
| 36 |
+ |
|
| 37 |
|
struct driver * |
| 38 |
|
vga_init(name, id) /* open VGA */ |
| 39 |
|
char *name, *id; |
| 40 |
|
{ |
| 41 |
< |
if (_setvideomode(_MRES256COLOR) == 0) |
| 41 |
> |
static short mode_pref[] = {_XRES256COLOR, _SVRES256COLOR, |
| 42 |
> |
_MRES256COLOR, -1}; |
| 43 |
> |
char *ep; |
| 44 |
> |
register int i; |
| 45 |
> |
|
| 46 |
> |
for (i = 0; mode_pref[i] != -1; i++) |
| 47 |
> |
if (_setvideomode(mode_pref[i])) |
| 48 |
> |
break; |
| 49 |
> |
if (mode_pref[i] == -1) { |
| 50 |
> |
_setvideomode(_DEFAULTMODE); |
| 51 |
> |
stderr_v(name); |
| 52 |
> |
stderr_v(": card not present or insufficient VGA memory\n"); |
| 53 |
|
return(NULL); |
| 54 |
+ |
} |
| 55 |
|
_getvideoconfig(&config); |
| 56 |
|
_settextwindow(config.numtextrows-2, 1, |
| 57 |
|
config.numtextrows, config.numtextcols); |
| 58 |
|
vga_driver.xsiz = config.numxpixels; |
| 59 |
< |
vga_driver.ysiz = config.numypixels*(config.numtextrows-3) |
| 59 |
> |
vga_driver.ysiz = (long)config.numypixels*(config.numtextrows-3) |
| 60 |
|
/config.numtextrows; |
| 61 |
< |
vga_driver.pixaspect = .75*config.numxpixels/config.numypixels; |
| 61 |
> |
switch (config.mode) { /* correct problems */ |
| 62 |
> |
case _XRES256COLOR: |
| 63 |
> |
vga_driver.ysiz -= 16; |
| 64 |
> |
break; |
| 65 |
> |
case _MRES256COLOR: |
| 66 |
> |
vga_driver.pixaspect = 1.2; |
| 67 |
> |
break; |
| 68 |
> |
} |
| 69 |
|
_setviewport(0, 0, vga_driver.xsiz, vga_driver.ysiz); |
| 70 |
< |
make_gmap(GAMMA); /* make color map */ |
| 71 |
< |
_remappalette(1, 0x303030L); |
| 70 |
> |
if ((ep = getenv("GAMMA")) != NULL) /* make gamma map */ |
| 71 |
> |
make_gmap(atof(ep)); |
| 72 |
> |
else |
| 73 |
> |
make_gmap(GAMMA); |
| 74 |
> |
_remappalette(1, _BRIGHTWHITE); |
| 75 |
|
_settextcolor(1); |
| 76 |
< |
errvec = vga_comout; |
| 76 |
> |
ms_gcinit(&vga_driver); |
| 77 |
> |
errvec = vga_errout; |
| 78 |
|
cmdvec = vga_comout; |
| 79 |
|
if (wrnvec != NULL) |
| 80 |
|
wrnvec = vga_comout; |
| 85 |
|
static |
| 86 |
|
vga_close() /* close VGA */ |
| 87 |
|
{ |
| 88 |
< |
errvec = stderr_v; /* reset error vector */ |
| 88 |
> |
_setvideomode(_DEFAULTMODE); |
| 89 |
> |
errvec = stderr_v; /* reset error vectors */ |
| 90 |
|
cmdvec = NULL; |
| 91 |
|
if (wrnvec != NULL) |
| 92 |
|
wrnvec = stderr_v; |
| 93 |
< |
_setvideomode(_DEFAULTMODE); |
| 93 |
> |
if (fatalerr[0]) |
| 94 |
> |
stderr_v(fatalerr); /* repeat error message */ |
| 95 |
|
} |
| 96 |
|
|
| 97 |
|
|
| 138 |
|
if (*s == '\0') |
| 139 |
|
break; |
| 140 |
|
tpos = _gettextposition(); |
| 141 |
< |
_settextposition(tpos.row, *s=='\r' ? 0 : tpos.col-1); |
| 141 |
> |
_settextposition(tpos.row, *s=='\r' ? 1 : tpos.col-1); |
| 142 |
|
continue; |
| 143 |
|
default: |
| 144 |
|
*cp++ = *s; |
| 146 |
|
} |
| 147 |
|
return(0); |
| 148 |
|
} |
| 149 |
+ |
fatalerr[0] = '\0'; |
| 150 |
+ |
} |
| 151 |
+ |
|
| 152 |
+ |
|
| 153 |
+ |
static |
| 154 |
+ |
vga_errout(msg) |
| 155 |
+ |
register char *msg; |
| 156 |
+ |
{ |
| 157 |
+ |
static char *fep = fatalerr; |
| 158 |
+ |
|
| 159 |
+ |
_outtext(msg); |
| 160 |
+ |
while (*msg) |
| 161 |
+ |
*fep++ = *msg++; |
| 162 |
+ |
*fep = '\0'; |
| 163 |
+ |
if (fep > fatalerr && fep[-1] == '\n') |
| 164 |
+ |
fep = fatalerr; |
| 165 |
|
} |
| 166 |
|
|
| 167 |
|
|
