| 65 |
|
} |
| 66 |
|
|
| 67 |
|
|
| 68 |
+ |
normaspect(va, ap, xp, yp) /* fix pixel aspect or resolution */ |
| 69 |
+ |
double va; /* view aspect ratio */ |
| 70 |
+ |
double *ap; /* pixel aspect in (or out if 0) */ |
| 71 |
+ |
int *xp, *yp; /* x and y resolution in (or out if *ap!=0) */ |
| 72 |
+ |
{ |
| 73 |
+ |
if (*ap <= FTINY) |
| 74 |
+ |
*ap = va * *xp / *yp; /* compute pixel aspect */ |
| 75 |
+ |
else if (va * *xp > *ap * *yp) |
| 76 |
+ |
*xp = *yp / va * *ap; /* reduce x resolution */ |
| 77 |
+ |
else |
| 78 |
+ |
*yp = *xp * va / *ap; /* reduce y resolution */ |
| 79 |
+ |
} |
| 80 |
+ |
|
| 81 |
+ |
|
| 82 |
|
viewray(orig, direc, v, x, y) /* compute ray origin and direction */ |
| 83 |
|
FVECT orig, direc; |
| 84 |
|
register VIEW *v; |
| 258 |
|
|
| 259 |
|
|
| 260 |
|
int |
| 261 |
< |
viewfile(fname, vp) /* get view from file */ |
| 261 |
> |
viewfile(fname, vp, xp, yp) /* get view from file */ |
| 262 |
|
char *fname; |
| 263 |
|
VIEW *vp; |
| 264 |
+ |
int *xp, *yp; |
| 265 |
|
{ |
| 266 |
|
extern char *progname; |
| 267 |
|
FILE *fp; |
| 274 |
|
gothview = 0; |
| 275 |
|
|
| 276 |
|
getheader(fp, gethview); |
| 277 |
+ |
|
| 278 |
+ |
if (xp != NULL && yp != NULL |
| 279 |
+ |
&& fgetresolu(xp, yp, fp) == -1) |
| 280 |
+ |
gothview = 0; |
| 281 |
|
|
| 282 |
|
fclose(fp); |
| 283 |
|
|
