55 |
|
|
56 |
|
|
57 |
|
#if 0 |
58 |
< |
extern void |
58 |
> |
void |
59 |
|
write_map( /* write out float map (debugging) */ |
60 |
|
float *mp, |
61 |
|
char *fn |
185 |
|
} |
186 |
|
|
187 |
|
|
188 |
< |
extern void |
188 |
> |
void |
189 |
|
sample_pos( /* compute jittered sample position */ |
190 |
|
double hv[2], |
191 |
|
int x, |
202 |
|
} |
203 |
|
|
204 |
|
|
205 |
< |
extern double |
205 |
> |
double |
206 |
|
sample_wt( /* compute interpolant sample weight */ |
207 |
|
int xo, |
208 |
|
int yo |
236 |
|
} |
237 |
|
|
238 |
|
|
239 |
< |
extern int |
239 |
> |
int |
240 |
|
getclosest( /* get nc closest neighbors on same object */ |
241 |
|
int *iarr, |
242 |
|
int nc, |
452 |
|
} |
453 |
|
|
454 |
|
|
455 |
< |
extern int |
455 |
> |
int |
456 |
|
getambcolor( /* get ambient color for object if we can */ |
457 |
|
COLOR clr, |
458 |
|
int obj |
520 |
|
} |
521 |
|
|
522 |
|
|
523 |
< |
extern double |
523 |
> |
double |
524 |
|
estimaterr( /* estimate relative error from samples */ |
525 |
|
COLOR cs, |
526 |
|
COLOR cs2, |
546 |
|
} |
547 |
|
|
548 |
|
|
549 |
< |
extern double |
549 |
> |
double |
550 |
|
comperr( /* estimate relative error in neighborhood */ |
551 |
|
int *neigh, |
552 |
|
int nc, |
582 |
|
} |
583 |
|
|
584 |
|
|
585 |
< |
extern void |
585 |
> |
void |
586 |
|
comp_frame_error(void) /* initialize frame error values */ |
587 |
|
{ |
588 |
|
uby8 *edone = NULL; |
610 |
|
* by the returned ray value -- we take half of this. |
611 |
|
*/ |
612 |
|
edone = (uby8 *)calloc(hres*vres, sizeof(uby8)); |
613 |
< |
for (y = vres; y--; ) |
614 |
< |
for (x = hres; x--; ) { |
615 |
< |
n = fndx(x, y); |
613 |
> |
for (n = hres*vres; n--; ) { |
614 |
|
if ((abuffer[n] != ALOWQ) | (obuffer[n] == OVOID)) |
615 |
|
continue; |
616 |
|
if (!getambcolor(objamb, obuffer[n])) |
627 |
|
else if (i >= ADISTANT/2) i = ADISTANT/2-1; |
628 |
|
abuffer[n] = i; |
629 |
|
edone[n] = 1; |
630 |
< |
} |
630 |
> |
} |
631 |
|
} |
632 |
|
/* final statistical estimate */ |
633 |
|
for (y = vres; y--; ) |
659 |
|
} |
660 |
|
|
661 |
|
|
662 |
< |
extern void |
662 |
> |
void |
663 |
|
init_frame(void) /* render base (low quality) frame */ |
664 |
|
{ |
665 |
|
int restart; |
716 |
|
} |
717 |
|
|
718 |
|
|
719 |
< |
extern void |
719 |
> |
void |
720 |
|
filter_frame(void) /* interpolation, motion-blur, and exposure */ |
721 |
|
{ |
722 |
< |
double expval = expspec_val(getexp(fcur)); |
723 |
< |
int x, y; |
724 |
< |
int neigh[NPINTERP]; |
725 |
< |
int nc; |
726 |
< |
COLOR cval; |
727 |
< |
double w, wsum; |
728 |
< |
int n; |
722 |
> |
const double expval = expspec_val(getexp(fcur)); |
723 |
> |
int x, y; |
724 |
> |
int neigh[NPINTERP]; |
725 |
> |
int nc; |
726 |
> |
COLOR cval; |
727 |
> |
double w, wsum; |
728 |
> |
int n; |
729 |
|
|
730 |
|
#if 0 |
731 |
|
/* XXX TEMPORARY!! */ |
745 |
|
fflush(stdout); |
746 |
|
} |
747 |
|
/* normalize samples */ |
748 |
< |
for (y = vres; y--; ) |
751 |
< |
for (x = hres; x--; ) { |
752 |
< |
n = fndx(x, y); |
748 |
> |
for (n = hres*vres; n--; ) { |
749 |
|
if (sbuffer[n] <= 1) |
750 |
|
continue; |
751 |
|
w = 1.0/(double)sbuffer[n]; |
752 |
|
scalecolor(cbuffer[n], w); |
753 |
< |
} |
753 |
> |
} |
754 |
|
/* interpolate samples */ |
755 |
|
for (y = vres; y--; ) |
756 |
|
for (x = hres; x--; ) { |
857 |
|
} |
858 |
|
} |
859 |
|
/* compute final results */ |
860 |
< |
for (y = vres; y--; ) |
865 |
< |
for (x = hres; x--; ) { |
866 |
< |
n = fndx(x, y); |
860 |
> |
for (n = hres*vres; n--; ) { |
861 |
|
if (wbuffer[n] <= FTINY) |
862 |
|
continue; |
863 |
< |
w = 1./wbuffer[n]; |
863 |
> |
w = expval/wbuffer[n]; |
864 |
|
scalecolor(outbuffer[n], w); |
865 |
< |
} |
866 |
< |
} else |
867 |
< |
for (n = hres*vres; n--; ) |
868 |
< |
copycolor(outbuffer[n], cbuffer[n]); |
865 |
> |
} |
866 |
> |
} else { /* no blur -- just exposure */ |
867 |
> |
memcpy(outbuffer, cbuffer, sizeof(COLOR)*hres*vres); |
868 |
> |
for (n = ((expval < 0.99) | (expval > 1.01))*hres*vres; n--; ) |
869 |
> |
scalecolor(outbuffer[n], expval); |
870 |
> |
} |
871 |
|
/* |
872 |
|
for (n = hres*vres; n--; ) |
873 |
|
if (!sbuffer[n]) |
874 |
|
setcolor(outbuffer[n], 0., 0., 0.); |
875 |
|
*/ |
880 |
– |
/* adjust exposure */ |
881 |
– |
if ((expval < 0.99) | (expval > 1.01)) |
882 |
– |
for (n = hres*vres; n--; ) |
883 |
– |
scalecolor(outbuffer[n], expval); |
876 |
|
#if 0 |
877 |
|
{ |
878 |
|
float *sbuf = (float *)malloc(sizeof(float)*hres*vres); |
888 |
|
} |
889 |
|
|
890 |
|
|
891 |
< |
extern void |
891 |
> |
void |
892 |
|
send_frame(void) /* send frame to destination */ |
893 |
|
{ |
894 |
|
char fname[1024]; |
994 |
|
} |
995 |
|
|
996 |
|
|
997 |
< |
extern void |
997 |
> |
void |
998 |
|
free_frame(void) /* free frame allocation */ |
999 |
|
{ |
1000 |
|
if (cbuffer == NULL) |