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/* Copyright (c) 1994 Regents of the University of California */ |
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#ifndef lint |
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static char SCCSid[] = "$SunId$ LBL"; |
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#endif |
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|
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#include "standard.h" |
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|
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< |
#include <sys/fcntl.h> |
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> |
#include <ctype.h> |
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|
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#include "view.h" |
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|
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#include "color.h" |
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|
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#include "resolu.h" |
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|
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#define pscan(y) (ourpict+(y)*hresolu) |
| 24 |
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#define zscan(y) (ourzbuf+(y)*hresolu) |
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|
| 26 |
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#define F_FORE 1 /* fill foreground */ |
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#define F_BACK 2 /* fill background */ |
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|
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< |
#define PACKSIZ 42 /* calculation packet size */ |
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> |
#define PACKSIZ 256 /* max. calculation packet size */ |
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|
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< |
#define RTCOM "rtrace -h -ovl -fff -x %d %s" |
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> |
#define RTCOM "rtrace -h- -ovl -fff " |
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|
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#define ABS(x) ((x)>0?(x):-(x)) |
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|
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|
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char *progname; |
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|
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< |
int fill = F_FORE|F_BACK; /* selected fill algorithm */ |
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> |
int fillo = F_FORE|F_BACK; /* selected fill options */ |
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> |
int fillsamp = 0; /* sample separation (0 == inf) */ |
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extern int backfill(), rcalfill(); /* fill functions */ |
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< |
int (*deffill)() = backfill; /* selected fill function */ |
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> |
int (*fillfunc)() = backfill; /* selected fill function */ |
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COLR backcolr = BLKCOLR; /* background color */ |
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double backz = 0.0; /* background z value */ |
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int normdist = 1; /* normalized distance? */ |
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|
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VIEW theirview = STDVIEW; /* input view */ |
| 59 |
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int gotview; /* got input view? */ |
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< |
int thresolu, tvresolu; /* input resolution */ |
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> |
int wrongformat = 0; /* input in another format? */ |
| 61 |
> |
RESOLU tresolu; /* input resolution */ |
| 62 |
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double theirexp; /* input picture exposure */ |
| 63 |
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double theirs2ours[4][4]; /* transformation matrix */ |
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+ |
int hasmatrix = 0; /* has transformation matrix */ |
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|
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< |
int childpid = -1; /* id of fill process */ |
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< |
FILE *psend, *precv; /* pipes to/from fill calculation */ |
| 68 |
< |
int queue[PACKSIZ][2]; /* pending pixels */ |
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> |
int PDesc[3] = {-1,-1,-1}; /* rtrace process descriptor */ |
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> |
#define childpid (PDesc[2]) |
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> |
unsigned short queue[PACKSIZ][2]; /* pending pixels */ |
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> |
int packsiz; /* actual packet size */ |
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int queuesiz; /* number of pixels pending */ |
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|
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|
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int argc; |
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char *argv[]; |
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{ |
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< |
#define check(olen,narg) if (argv[i][olen] || narg >= argc-i) goto badopt |
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< |
extern double atof(); |
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> |
#define check(ol,al) if (argv[i][ol] || \ |
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> |
badarg(argc-i-1,argv+i+1,al)) \ |
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> |
goto badopt |
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int gotvfile = 0; |
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char *zfile = NULL; |
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char *err; |
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} |
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switch (argv[i][1]) { |
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case 't': /* threshold */ |
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< |
check(2,1); |
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> |
check(2,"f"); |
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zeps = atof(argv[++i]); |
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break; |
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case 'n': /* dist. normalized? */ |
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< |
check(2,0); |
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> |
check(2,NULL); |
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normdist = !normdist; |
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break; |
| 102 |
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case 'f': /* fill type */ |
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switch (argv[i][2]) { |
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case '0': /* none */ |
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< |
check(3,0); |
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fill = 0; |
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> |
check(3,NULL); |
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> |
fillo = 0; |
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break; |
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case 'f': /* foreground */ |
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< |
check(3,0); |
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fill = F_FORE; |
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> |
check(3,NULL); |
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> |
fillo = F_FORE; |
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break; |
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case 'b': /* background */ |
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< |
check(3,0); |
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fill = F_BACK; |
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> |
check(3,NULL); |
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> |
fillo = F_BACK; |
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break; |
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case 'a': /* all */ |
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< |
check(3,0); |
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fill = F_FORE|F_BACK; |
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> |
check(3,NULL); |
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> |
fillo = F_FORE|F_BACK; |
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break; |
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+ |
case 's': /* sample */ |
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+ |
check(3,"i"); |
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+ |
fillsamp = atoi(argv[++i]); |
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+ |
break; |
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case 'c': /* color */ |
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< |
check(3,3); |
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< |
deffill = backfill; |
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> |
check(3,"fff"); |
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> |
fillfunc = backfill; |
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setcolr(backcolr, atof(argv[i+1]), |
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atof(argv[i+2]), atof(argv[i+3])); |
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i += 3; |
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break; |
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case 'z': /* z value */ |
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< |
check(3,1); |
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< |
deffill = backfill; |
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> |
check(3,"f"); |
| 133 |
> |
fillfunc = backfill; |
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backz = atof(argv[++i]); |
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break; |
| 136 |
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case 'r': /* rtrace */ |
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< |
check(3,1); |
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< |
deffill = rcalfill; |
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> |
check(3,"s"); |
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> |
fillfunc = rcalfill; |
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calstart(RTCOM, argv[++i]); |
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break; |
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default: |
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} |
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break; |
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case 'z': /* z file */ |
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< |
check(2,1); |
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> |
check(2,"s"); |
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zfile = argv[++i]; |
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break; |
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case 'x': /* x resolution */ |
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< |
check(2,1); |
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> |
check(2,"i"); |
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hresolu = atoi(argv[++i]); |
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break; |
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case 'y': /* y resolution */ |
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< |
check(2,1); |
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> |
check(2,"i"); |
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vresolu = atoi(argv[++i]); |
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break; |
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case 'p': /* pixel aspect */ |
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< |
check(2,1); |
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> |
if (argv[i][2] != 'a') |
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> |
goto badopt; |
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> |
check(3,"f"); |
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pixaspect = atof(argv[++i]); |
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break; |
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case 'v': /* view file */ |
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if (argv[i][2] != 'f') |
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goto badopt; |
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< |
check(3,1); |
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> |
check(3,"s"); |
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gotvfile = viewfile(argv[++i], &ourview, 0, 0); |
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< |
if (gotvfile < 0) { |
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< |
perror(argv[i]); |
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< |
exit(1); |
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< |
} else if (gotvfile == 0) { |
| 168 |
> |
if (gotvfile < 0) |
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> |
syserror(argv[i]); |
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> |
else if (gotvfile == 0) { |
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fprintf(stderr, "%s: bad view file\n", |
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argv[i]); |
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exit(1); |
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/* check arguments */ |
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if ((argc-i)%2) |
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goto userr; |
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if (fillsamp == 1) |
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fillo &= ~F_BACK; |
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/* set view */ |
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< |
if (err = setview(&ourview)) { |
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> |
if ((err = setview(&ourview)) != NULL) { |
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fprintf(stderr, "%s: %s\n", progname, err); |
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exit(1); |
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} |
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normaspect(viewaspect(&ourview), &pixaspect, &hresolu, &vresolu); |
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/* allocate frame */ |
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< |
ourpict = (COLR *)malloc(hresolu*vresolu*sizeof(COLR)); |
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< |
ourzbuf = (float *)calloc(hresolu*vresolu,sizeof(float)); |
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> |
ourpict = (COLR *)bmalloc(hresolu*vresolu*sizeof(COLR)); |
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> |
ourzbuf = (float *)bmalloc(hresolu*vresolu*sizeof(float)); |
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if (ourpict == NULL || ourzbuf == NULL) |
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< |
syserror(); |
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> |
syserror(progname); |
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> |
bzero((char *)ourzbuf, hresolu*vresolu*sizeof(float)); |
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> |
/* new header */ |
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> |
newheader("RADIANCE", stdout); |
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/* get input */ |
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for ( ; i < argc; i += 2) |
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addpicture(argv[i], argv[i+1]); |
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/* fill in spaces */ |
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if (fill&F_BACK) |
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< |
backpicture(); |
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> |
if (fillo&F_BACK) |
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> |
backpicture(fillfunc, fillsamp); |
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else |
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< |
fillpicture(); |
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> |
fillpicture(fillfunc); |
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/* close calculation */ |
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caldone(); |
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/* aft clipping */ |
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clipaft(); |
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/* add to header */ |
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printargs(argc, argv, stdout); |
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if (gotvfile) { |
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< |
printf(VIEWSTR); |
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> |
fputs(VIEWSTR, stdout); |
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fprintview(&ourview, stdout); |
| 219 |
< |
printf("\n"); |
| 219 |
> |
putc('\n', stdout); |
| 220 |
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} |
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if (pixaspect < .99 || pixaspect > 1.01) |
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fputaspect(pixaspect, stdout); |
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if (ourexp > 0 && (ourexp < .995 || ourexp > 1.005)) |
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fputexpos(ourexp, stdout); |
| 225 |
< |
printf("\n"); |
| 225 |
> |
fputformat(COLRFMT, stdout); |
| 226 |
> |
putc('\n', stdout); |
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/* write picture */ |
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writepicture(); |
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/* write z file */ |
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headline(s) /* process header string */ |
| 244 |
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char *s; |
| 245 |
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{ |
| 246 |
< |
static char *altname[] = {"rview","rpict","pinterp",VIEWSTR,NULL}; |
| 225 |
< |
register char **an; |
| 246 |
> |
char fmt[32]; |
| 247 |
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|
| 248 |
< |
printf("\t%s", s); |
| 248 |
> |
if (isheadid(s)) |
| 249 |
> |
return; |
| 250 |
> |
if (formatval(fmt, s)) { |
| 251 |
> |
wrongformat = strcmp(fmt, COLRFMT); |
| 252 |
> |
return; |
| 253 |
> |
} |
| 254 |
> |
putc('\t', stdout); |
| 255 |
> |
fputs(s, stdout); |
| 256 |
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|
| 257 |
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if (isexpos(s)) { |
| 258 |
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theirexp *= exposval(s); |
| 259 |
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return; |
| 260 |
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} |
| 261 |
< |
for (an = altname; *an != NULL; an++) |
| 262 |
< |
if (!strncmp(*an, s, strlen(*an))) { |
| 235 |
< |
if (sscanview(&theirview, s+strlen(*an)) > 0) |
| 236 |
< |
gotview++; |
| 237 |
< |
break; |
| 238 |
< |
} |
| 261 |
> |
if (isview(s) && sscanview(&theirview, s) > 0) |
| 262 |
> |
gotview++; |
| 263 |
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} |
| 264 |
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|
| 265 |
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|
| 266 |
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addpicture(pfile, zspec) /* add picture to output */ |
| 267 |
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char *pfile, *zspec; |
| 268 |
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{ |
| 245 |
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extern double atof(); |
| 269 |
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FILE *pfp; |
| 270 |
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int zfd; |
| 271 |
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char *err; |
| 274 |
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struct position *plast; |
| 275 |
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int y; |
| 276 |
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/* open picture file */ |
| 277 |
< |
if ((pfp = fopen(pfile, "r")) == NULL) { |
| 278 |
< |
perror(pfile); |
| 256 |
< |
exit(1); |
| 257 |
< |
} |
| 277 |
> |
if ((pfp = fopen(pfile, "r")) == NULL) |
| 278 |
> |
syserror(pfile); |
| 279 |
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/* get header with exposure and view */ |
| 280 |
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theirexp = 1.0; |
| 281 |
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gotview = 0; |
| 282 |
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printf("%s:\n", pfile); |
| 283 |
< |
getheader(pfp, headline); |
| 284 |
< |
if (!gotview || fgetresolu(&thresolu, &tvresolu, pfp) |
| 285 |
< |
!= (YMAJOR|YDECR)) { |
| 265 |
< |
fprintf(stderr, "%s: picture view error\n", pfile); |
| 283 |
> |
getheader(pfp, headline, NULL); |
| 284 |
> |
if (wrongformat || !gotview || !fgetsresolu(&tresolu, pfp)) { |
| 285 |
> |
fprintf(stderr, "%s: picture format error\n", pfile); |
| 286 |
|
exit(1); |
| 287 |
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} |
| 288 |
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if (ourexp <= 0) |
| 294 |
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exit(1); |
| 295 |
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} |
| 296 |
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/* compute transformation */ |
| 297 |
< |
pixform(theirs2ours, &theirview, &ourview); |
| 297 |
> |
hasmatrix = pixform(theirs2ours, &theirview, &ourview); |
| 298 |
|
/* allocate scanlines */ |
| 299 |
< |
scanin = (COLR *)malloc(thresolu*sizeof(COLR)); |
| 300 |
< |
zin = (float *)malloc(thresolu*sizeof(float)); |
| 301 |
< |
plast = (struct position *)calloc(thresolu, sizeof(struct position)); |
| 299 |
> |
scanin = (COLR *)malloc(scanlen(&tresolu)*sizeof(COLR)); |
| 300 |
> |
zin = (float *)malloc(scanlen(&tresolu)*sizeof(float)); |
| 301 |
> |
plast = (struct position *)calloc(scanlen(&tresolu), |
| 302 |
> |
sizeof(struct position)); |
| 303 |
|
if (scanin == NULL || zin == NULL || plast == NULL) |
| 304 |
< |
syserror(); |
| 304 |
> |
syserror(progname); |
| 305 |
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/* get z specification or file */ |
| 306 |
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if ((zfd = open(zspec, O_RDONLY)) == -1) { |
| 307 |
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double zvalue; |
| 308 |
|
register int x; |
| 309 |
< |
if (!isfloat(zspec) || (zvalue = atof(zspec)) <= 0.0) { |
| 310 |
< |
perror(zspec); |
| 311 |
< |
exit(1); |
| 291 |
< |
} |
| 292 |
< |
for (x = 0; x < thresolu; x++) |
| 309 |
> |
if (!isfloat(zspec) || (zvalue = atof(zspec)) <= 0.0) |
| 310 |
> |
syserror(zspec); |
| 311 |
> |
for (x = scanlen(&tresolu); x-- > 0; ) |
| 312 |
|
zin[x] = zvalue; |
| 313 |
|
} |
| 314 |
|
/* load image */ |
| 315 |
< |
for (y = tvresolu-1; y >= 0; y--) { |
| 316 |
< |
if (freadcolrs(scanin, thresolu, pfp) < 0) { |
| 315 |
> |
for (y = 0; y < numscans(&tresolu); y++) { |
| 316 |
> |
if (freadcolrs(scanin, scanlen(&tresolu), pfp) < 0) { |
| 317 |
|
fprintf(stderr, "%s: read error\n", pfile); |
| 318 |
|
exit(1); |
| 319 |
|
} |
| 320 |
< |
if (zfd != -1 && read(zfd,zin,thresolu*sizeof(float)) |
| 321 |
< |
< thresolu*sizeof(float)) { |
| 320 |
> |
if (zfd != -1 && read(zfd,(char *)zin, |
| 321 |
> |
scanlen(&tresolu)*sizeof(float)) |
| 322 |
> |
< scanlen(&tresolu)*sizeof(float)) { |
| 323 |
|
fprintf(stderr, "%s: read error\n", zspec); |
| 324 |
|
exit(1); |
| 325 |
|
} |
| 341 |
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{ |
| 342 |
|
double m4t[4][4]; |
| 343 |
|
|
| 344 |
+ |
if (vw1->type != VT_PER && vw1->type != VT_PAR) |
| 345 |
+ |
return(0); |
| 346 |
+ |
if (vw2->type != VT_PER && vw2->type != VT_PAR) |
| 347 |
+ |
return(0); |
| 348 |
|
setident4(xfmat); |
| 349 |
|
xfmat[0][0] = vw1->hvec[0]; |
| 350 |
|
xfmat[0][1] = vw1->hvec[1]; |
| 372 |
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m4t[2][2] = vw2->vdir[2]; |
| 373 |
|
m4t[3][2] = -DOT(vw2->vp,vw2->vdir); |
| 374 |
|
multmat4(xfmat, xfmat, m4t); |
| 375 |
+ |
return(1); |
| 376 |
|
} |
| 377 |
|
|
| 378 |
|
|
| 382 |
|
float *zline; |
| 383 |
|
struct position *lasty; /* input/output */ |
| 384 |
|
{ |
| 385 |
< |
extern double sqrt(); |
| 361 |
< |
double pos[3]; |
| 385 |
> |
FVECT pos; |
| 386 |
|
struct position lastx, newpos; |
| 387 |
|
register int x; |
| 388 |
|
|
| 389 |
< |
for (x = thresolu-1; x >= 0; x--) { |
| 390 |
< |
pos[0] = (x+.5)/thresolu + theirview.hoff - .5; |
| 391 |
< |
pos[1] = (y+.5)/tvresolu + theirview.voff - .5; |
| 389 |
> |
lastx.z = 0; |
| 390 |
> |
for (x = scanlen(&tresolu); x-- > 0; ) { |
| 391 |
> |
pix2loc(pos, &tresolu, x, y); |
| 392 |
|
pos[2] = zline[x]; |
| 393 |
< |
if (theirview.type == VT_PER) { |
| 370 |
< |
if (normdist) /* adjust for eye-ray distance */ |
| 371 |
< |
pos[2] /= sqrt( 1. |
| 372 |
< |
+ pos[0]*pos[0]*theirview.hn2 |
| 373 |
< |
+ pos[1]*pos[1]*theirview.vn2 ); |
| 374 |
< |
pos[0] *= pos[2]; |
| 375 |
< |
pos[1] *= pos[2]; |
| 376 |
< |
} |
| 377 |
< |
multp3(pos, pos, theirs2ours); |
| 378 |
< |
if (pos[2] <= 0) { |
| 393 |
> |
if (movepixel(pos) < 0) { |
| 394 |
|
lasty[x].z = lastx.z = 0; /* mark invalid */ |
| 395 |
|
continue; |
| 396 |
|
} |
| 382 |
– |
if (ourview.type == VT_PER) { |
| 383 |
– |
pos[0] /= pos[2]; |
| 384 |
– |
pos[1] /= pos[2]; |
| 385 |
– |
} |
| 386 |
– |
pos[0] += .5 - ourview.hoff; |
| 387 |
– |
pos[1] += .5 - ourview.voff; |
| 397 |
|
newpos.x = pos[0] * hresolu; |
| 398 |
|
newpos.y = pos[1] * vresolu; |
| 399 |
|
newpos.z = zline[x]; |
| 423 |
|
register int x, y; /* final position */ |
| 424 |
|
|
| 425 |
|
/* compute vector p0p1 */ |
| 426 |
< |
if (fill&F_FORE && ABS(p1->z-p0->z) <= zt) { |
| 426 |
> |
if (fillo&F_FORE && ABS(p1->z-p0->z) <= zt) { |
| 427 |
|
s1x = p1->x - p0->x; |
| 428 |
|
s1y = p1->y - p0->y; |
| 429 |
|
l1 = ABS(s1x); |
| 434 |
|
p1isy = -1; |
| 435 |
|
} |
| 436 |
|
/* compute vector p0p2 */ |
| 437 |
< |
if (fill&F_FORE && ABS(p2->z-p0->z) <= zt) { |
| 437 |
> |
if (fillo&F_FORE && ABS(p2->z-p0->z) <= zt) { |
| 438 |
|
s2x = p2->x - p0->x; |
| 439 |
|
s2y = p2->y - p0->y; |
| 440 |
|
if (p1isy == 1) |
| 452 |
|
y1 = p0->y + c1*s1y/l1; |
| 453 |
|
for (c2 = l2; c2-- > 0; ) { |
| 454 |
|
x = x1 + c2*s2x/l2; |
| 455 |
+ |
if (x < 0 || x >= hresolu) |
| 456 |
+ |
continue; |
| 457 |
|
y = y1 + c2*s2y/l2; |
| 458 |
+ |
if (y < 0 || y >= vresolu) |
| 459 |
+ |
continue; |
| 460 |
|
if (zscan(y)[x] <= 0 || zscan(y)[x]-z |
| 461 |
|
> zeps*zscan(y)[x]) { |
| 462 |
|
zscan(y)[x] = z; |
| 467 |
|
} |
| 468 |
|
|
| 469 |
|
|
| 470 |
< |
backpicture() /* background fill algorithm */ |
| 470 |
> |
movepixel(pos) /* reposition image point */ |
| 471 |
> |
FVECT pos; |
| 472 |
|
{ |
| 473 |
+ |
double d0, d1; |
| 474 |
+ |
FVECT pt, direc; |
| 475 |
+ |
|
| 476 |
+ |
if (pos[2] <= 0) /* empty pixel */ |
| 477 |
+ |
return(-1); |
| 478 |
+ |
if (normdist && theirview.type == VT_PER) { /* adjust distance */ |
| 479 |
+ |
d0 = pos[0] + theirview.hoff - .5; |
| 480 |
+ |
d1 = pos[1] + theirview.voff - .5; |
| 481 |
+ |
pos[2] /= sqrt(1. + d0*d0*theirview.hn2 + d1*d1*theirview.vn2); |
| 482 |
+ |
} |
| 483 |
+ |
if (hasmatrix) { |
| 484 |
+ |
pos[0] += theirview.hoff - .5; |
| 485 |
+ |
pos[1] += theirview.voff - .5; |
| 486 |
+ |
if (theirview.type == VT_PER) { |
| 487 |
+ |
pos[0] *= pos[2]; |
| 488 |
+ |
pos[1] *= pos[2]; |
| 489 |
+ |
} |
| 490 |
+ |
multp3(pos, pos, theirs2ours); |
| 491 |
+ |
if (pos[2] <= 0) |
| 492 |
+ |
return(-1); |
| 493 |
+ |
if (ourview.type == VT_PER) { |
| 494 |
+ |
pos[0] /= pos[2]; |
| 495 |
+ |
pos[1] /= pos[2]; |
| 496 |
+ |
} |
| 497 |
+ |
pos[0] += .5 - ourview.hoff; |
| 498 |
+ |
pos[1] += .5 - ourview.voff; |
| 499 |
+ |
return(0); |
| 500 |
+ |
} |
| 501 |
+ |
if (viewray(pt, direc, &theirview, pos[0], pos[1]) < -FTINY) |
| 502 |
+ |
return(-1); |
| 503 |
+ |
pt[0] += direc[0]*pos[2]; |
| 504 |
+ |
pt[1] += direc[1]*pos[2]; |
| 505 |
+ |
pt[2] += direc[2]*pos[2]; |
| 506 |
+ |
viewloc(pos, &ourview, pt); |
| 507 |
+ |
if (pos[2] <= 0) |
| 508 |
+ |
return(-1); |
| 509 |
+ |
return(0); |
| 510 |
+ |
} |
| 511 |
+ |
|
| 512 |
+ |
|
| 513 |
+ |
backpicture(fill, samp) /* background fill algorithm */ |
| 514 |
+ |
int (*fill)(); |
| 515 |
+ |
int samp; |
| 516 |
+ |
{ |
| 517 |
|
int *yback, xback; |
| 518 |
|
int y; |
| 461 |
– |
COLR pfill; |
| 519 |
|
register int x, i; |
| 520 |
|
/* get back buffer */ |
| 521 |
|
yback = (int *)malloc(hresolu*sizeof(int)); |
| 522 |
|
if (yback == NULL) |
| 523 |
< |
syserror(); |
| 523 |
> |
syserror(progname); |
| 524 |
|
for (x = 0; x < hresolu; x++) |
| 525 |
|
yback[x] = -2; |
| 526 |
|
/* |
| 562 |
|
xback = x-1; |
| 563 |
|
} |
| 564 |
|
/* |
| 565 |
< |
* Check to see if we have no background for |
| 566 |
< |
* this pixel. If not, use background color. |
| 565 |
> |
* If we have no background for this pixel, |
| 566 |
> |
* use the given fill function. |
| 567 |
|
*/ |
| 568 |
< |
if (xback < 0 && yback[x] < 0) { |
| 569 |
< |
(*deffill)(x,y); |
| 513 |
< |
continue; |
| 514 |
< |
} |
| 568 |
> |
if (xback < 0 && yback[x] < 0) |
| 569 |
> |
goto fillit; |
| 570 |
|
/* |
| 571 |
|
* Compare, and use the background that is |
| 572 |
|
* farther, unless one of them is next to us. |
| 573 |
+ |
* If the background is too distant, call |
| 574 |
+ |
* the fill function. |
| 575 |
|
*/ |
| 576 |
|
if ( yback[x] < 0 |
| 577 |
|
|| (xback >= 0 && ABS(x-xback) <= 1) |
| 578 |
|
|| ( ABS(y-yback[x]) > 1 |
| 579 |
|
&& zscan(yback[x])[x] |
| 580 |
|
< zscan(y)[xback] ) ) { |
| 581 |
+ |
if (samp > 0 && ABS(x-xback) >= samp) |
| 582 |
+ |
goto fillit; |
| 583 |
|
copycolr(pscan(y)[x],pscan(y)[xback]); |
| 584 |
|
zscan(y)[x] = zscan(y)[xback]; |
| 585 |
|
} else { |
| 586 |
+ |
if (samp > 0 && ABS(y-yback[x]) > samp) |
| 587 |
+ |
goto fillit; |
| 588 |
|
copycolr(pscan(y)[x],pscan(yback[x])[x]); |
| 589 |
|
zscan(y)[x] = zscan(yback[x])[x]; |
| 590 |
|
} |
| 591 |
+ |
continue; |
| 592 |
+ |
fillit: |
| 593 |
+ |
(*fill)(x,y); |
| 594 |
+ |
if (fill == rcalfill) { /* use it */ |
| 595 |
+ |
clearqueue(); |
| 596 |
+ |
xback = x; |
| 597 |
+ |
yback[x] = y; |
| 598 |
+ |
} |
| 599 |
|
} else { /* full pixel */ |
| 600 |
|
yback[x] = -2; |
| 601 |
|
xback = -2; |
| 605 |
|
} |
| 606 |
|
|
| 607 |
|
|
| 608 |
< |
fillpicture() /* paint in empty pixels with default */ |
| 608 |
> |
fillpicture(fill) /* paint in empty pixels using fill */ |
| 609 |
> |
int (*fill)(); |
| 610 |
|
{ |
| 611 |
|
register int x, y; |
| 612 |
|
|
| 613 |
|
for (y = 0; y < vresolu; y++) |
| 614 |
|
for (x = 0; x < hresolu; x++) |
| 615 |
|
if (zscan(y)[x] <= 0) |
| 616 |
< |
(*deffill)(x,y); |
| 616 |
> |
(*fill)(x,y); |
| 617 |
|
} |
| 618 |
|
|
| 619 |
|
|
| 620 |
+ |
clipaft() /* perform aft clipping as indicated */ |
| 621 |
+ |
{ |
| 622 |
+ |
register int x, y; |
| 623 |
+ |
double tstdist; |
| 624 |
+ |
double yzn2, vx; |
| 625 |
+ |
|
| 626 |
+ |
if (ourview.vaft <= FTINY) |
| 627 |
+ |
return; |
| 628 |
+ |
tstdist = ourview.vaft; |
| 629 |
+ |
for (y = 0; y < vresolu; y++) { |
| 630 |
+ |
if (ourview.type == VT_PER) { /* adjust distance */ |
| 631 |
+ |
yzn2 = (y+.5)/vresolu + ourview.voff - .5; |
| 632 |
+ |
yzn2 = 1. + yzn2*yzn2*ourview.vn2; |
| 633 |
+ |
tstdist = ourview.vaft * sqrt(yzn2); |
| 634 |
+ |
} |
| 635 |
+ |
for (x = 0; x < hresolu; x++) |
| 636 |
+ |
if (zscan(y)[x] > tstdist) { |
| 637 |
+ |
if (ourview.type == VT_PER) { |
| 638 |
+ |
vx = (x+.5)/hresolu + ourview.hoff - .5; |
| 639 |
+ |
if (zscan(y)[x] <= ourview.vaft * |
| 640 |
+ |
sqrt(vx*vx*ourview.hn2 + yzn2)) |
| 641 |
+ |
continue; |
| 642 |
+ |
} |
| 643 |
+ |
bzero(pscan(y)[x], sizeof(COLR)); |
| 644 |
+ |
zscan(y)[x] = 0.0; |
| 645 |
+ |
} |
| 646 |
+ |
} |
| 647 |
+ |
} |
| 648 |
+ |
|
| 649 |
+ |
|
| 650 |
|
writepicture() /* write out picture */ |
| 651 |
|
{ |
| 652 |
|
int y; |
| 653 |
|
|
| 654 |
< |
fputresolu(YMAJOR|YDECR, hresolu, vresolu, stdout); |
| 654 |
> |
fprtresolu(hresolu, vresolu, stdout); |
| 655 |
|
for (y = vresolu-1; y >= 0; y--) |
| 656 |
|
if (fwritecolrs(pscan(y), hresolu, stdout) < 0) |
| 657 |
< |
syserror(); |
| 657 |
> |
syserror(progname); |
| 658 |
|
} |
| 659 |
|
|
| 660 |
|
|
| 661 |
|
writedistance(fname) /* write out z file */ |
| 662 |
|
char *fname; |
| 663 |
|
{ |
| 564 |
– |
extern double sqrt(); |
| 664 |
|
int donorm = normdist && ourview.type == VT_PER; |
| 665 |
|
int fd; |
| 666 |
|
int y; |
| 667 |
|
float *zout; |
| 668 |
|
|
| 669 |
< |
if ((fd = open(fname, O_WRONLY|O_CREAT|O_TRUNC, 0666)) == -1) { |
| 670 |
< |
perror(fname); |
| 572 |
< |
exit(1); |
| 573 |
< |
} |
| 669 |
> |
if ((fd = open(fname, O_WRONLY|O_CREAT|O_TRUNC, 0666)) == -1) |
| 670 |
> |
syserror(fname); |
| 671 |
|
if (donorm |
| 672 |
|
&& (zout = (float *)malloc(hresolu*sizeof(float))) == NULL) |
| 673 |
< |
syserror(); |
| 673 |
> |
syserror(progname); |
| 674 |
|
for (y = vresolu-1; y >= 0; y--) { |
| 675 |
|
if (donorm) { |
| 676 |
|
double vx, yzn2; |
| 677 |
|
register int x; |
| 678 |
< |
yzn2 = y - .5*(vresolu-1); |
| 678 |
> |
yzn2 = (y+.5)/vresolu + ourview.voff - .5; |
| 679 |
|
yzn2 = 1. + yzn2*yzn2*ourview.vn2; |
| 680 |
|
for (x = 0; x < hresolu; x++) { |
| 681 |
< |
vx = x - .5*(hresolu-1); |
| 681 |
> |
vx = (x+.5)/hresolu + ourview.hoff - .5; |
| 682 |
|
zout[x] = zscan(y)[x] |
| 683 |
|
* sqrt(vx*vx*ourview.hn2 + yzn2); |
| 684 |
|
} |
| 685 |
|
} else |
| 686 |
|
zout = zscan(y); |
| 687 |
< |
if (write(fd, zout, hresolu*sizeof(float)) |
| 688 |
< |
< hresolu*sizeof(float)) { |
| 689 |
< |
perror(fname); |
| 593 |
< |
exit(1); |
| 594 |
< |
} |
| 687 |
> |
if (write(fd, (char *)zout, hresolu*sizeof(float)) |
| 688 |
> |
< hresolu*sizeof(float)) |
| 689 |
> |
syserror(fname); |
| 690 |
|
} |
| 691 |
|
if (donorm) |
| 692 |
|
free((char *)zout); |
| 715 |
|
} |
| 716 |
|
|
| 717 |
|
|
| 718 |
< |
calstart(prog, args) /* start fill calculation */ |
| 718 |
> |
calstart(prog, args) /* start fill calculation */ |
| 719 |
|
char *prog, *args; |
| 720 |
|
{ |
| 721 |
|
char combuf[512]; |
| 722 |
< |
int p0[2], p1[2]; |
| 722 |
> |
char *argv[64]; |
| 723 |
> |
int rval; |
| 724 |
> |
register char **wp, *cp; |
| 725 |
|
|
| 726 |
|
if (childpid != -1) { |
| 727 |
|
fprintf(stderr, "%s: too many calculations\n", progname); |
| 728 |
|
exit(1); |
| 729 |
|
} |
| 730 |
< |
sprintf(combuf, prog, PACKSIZ, args); |
| 731 |
< |
if (pipe(p0) < 0 || pipe(p1) < 0) |
| 732 |
< |
syserror(); |
| 733 |
< |
if ((childpid = vfork()) == 0) { /* fork calculation */ |
| 734 |
< |
close(p0[1]); |
| 735 |
< |
close(p1[0]); |
| 736 |
< |
if (p0[0] != 0) { |
| 737 |
< |
dup2(p0[0], 0); |
| 738 |
< |
close(p0[0]); |
| 739 |
< |
} |
| 740 |
< |
if (p1[1] != 1) { |
| 741 |
< |
dup2(p1[1], 1); |
| 645 |
< |
close(p1[1]); |
| 646 |
< |
} |
| 647 |
< |
execl("/bin/sh", "sh", "-c", combuf, 0); |
| 648 |
< |
perror("/bin/sh"); |
| 649 |
< |
_exit(127); |
| 730 |
> |
strcpy(combuf, prog); |
| 731 |
> |
strcat(combuf, args); |
| 732 |
> |
cp = combuf; |
| 733 |
> |
wp = argv; |
| 734 |
> |
for ( ; ; ) { |
| 735 |
> |
while (isspace(*cp)) /* nullify spaces */ |
| 736 |
> |
*cp++ = '\0'; |
| 737 |
> |
if (!*cp) /* all done? */ |
| 738 |
> |
break; |
| 739 |
> |
*wp++ = cp; /* add argument to list */ |
| 740 |
> |
while (*++cp && !isspace(*cp)) |
| 741 |
> |
; |
| 742 |
|
} |
| 743 |
< |
if (childpid == -1) |
| 744 |
< |
syserror(); |
| 745 |
< |
close(p0[0]); |
| 746 |
< |
close(p1[1]); |
| 747 |
< |
if ((psend = fdopen(p0[1], "w")) == NULL) |
| 748 |
< |
syserror(); |
| 749 |
< |
if ((precv = fdopen(p1[0], "r")) == NULL) |
| 750 |
< |
syserror(); |
| 743 |
> |
*wp = NULL; |
| 744 |
> |
/* start process */ |
| 745 |
> |
if ((rval = open_process(PDesc, argv)) < 0) |
| 746 |
> |
syserror(progname); |
| 747 |
> |
if (rval == 0) { |
| 748 |
> |
fprintf(stderr, "%s: command not found\n", argv[0]); |
| 749 |
> |
exit(1); |
| 750 |
> |
} |
| 751 |
> |
packsiz = rval/(6*sizeof(float)) - 1; |
| 752 |
> |
if (packsiz > PACKSIZ) |
| 753 |
> |
packsiz = PACKSIZ; |
| 754 |
|
queuesiz = 0; |
| 755 |
|
} |
| 756 |
|
|
| 757 |
|
|
| 758 |
< |
caldone() /* done with calculation */ |
| 758 |
> |
caldone() /* done with calculation */ |
| 759 |
|
{ |
| 665 |
– |
int pid; |
| 666 |
– |
|
| 760 |
|
if (childpid == -1) |
| 761 |
|
return; |
| 669 |
– |
if (fclose(psend) == EOF) |
| 670 |
– |
syserror(); |
| 762 |
|
clearqueue(); |
| 763 |
< |
fclose(precv); |
| 673 |
< |
while ((pid = wait(0)) != -1 && pid != childpid) |
| 674 |
< |
; |
| 763 |
> |
close_process(PDesc); |
| 764 |
|
childpid = -1; |
| 765 |
|
} |
| 766 |
|
|
| 768 |
|
rcalfill(x, y) /* fill with ray-calculated pixel */ |
| 769 |
|
int x, y; |
| 770 |
|
{ |
| 771 |
< |
FVECT orig, dir; |
| 683 |
< |
float outbuf[6]; |
| 684 |
< |
|
| 685 |
< |
if (queuesiz >= PACKSIZ) { /* flush queue */ |
| 686 |
< |
if (fflush(psend) == EOF) |
| 687 |
< |
syserror(); |
| 771 |
> |
if (queuesiz >= packsiz) /* flush queue if needed */ |
| 772 |
|
clearqueue(); |
| 773 |
< |
} |
| 690 |
< |
/* send new ray */ |
| 691 |
< |
viewray(orig, dir, &ourview, (x+.5)/hresolu, (y+.5)/vresolu); |
| 692 |
< |
outbuf[0] = orig[0]; outbuf[1] = orig[1]; outbuf[2] = orig[2]; |
| 693 |
< |
outbuf[3] = dir[0]; outbuf[4] = dir[1]; outbuf[5] = dir[2]; |
| 694 |
< |
if (fwrite(outbuf, sizeof(float), 6, psend) < 6) |
| 695 |
< |
syserror(); |
| 696 |
< |
/* remember it */ |
| 773 |
> |
/* add position to queue */ |
| 774 |
|
queue[queuesiz][0] = x; |
| 775 |
|
queue[queuesiz][1] = y; |
| 776 |
|
queuesiz++; |
| 777 |
|
} |
| 778 |
|
|
| 779 |
|
|
| 780 |
< |
clearqueue() /* get results from queue */ |
| 780 |
> |
clearqueue() /* process queue */ |
| 781 |
|
{ |
| 782 |
< |
float inbuf[4]; |
| 782 |
> |
FVECT orig, dir; |
| 783 |
> |
float fbuf[6*(PACKSIZ+1)]; |
| 784 |
> |
register float *fbp; |
| 785 |
|
register int i; |
| 786 |
|
|
| 787 |
+ |
if (queuesiz == 0) |
| 788 |
+ |
return; |
| 789 |
+ |
fbp = fbuf; |
| 790 |
|
for (i = 0; i < queuesiz; i++) { |
| 791 |
< |
if (fread(inbuf, sizeof(float), 4, precv) < 4) { |
| 792 |
< |
fprintf(stderr, "%s: read error in clearqueue\n", |
| 793 |
< |
progname); |
| 794 |
< |
exit(1); |
| 795 |
< |
} |
| 791 |
> |
viewray(orig, dir, &ourview, |
| 792 |
> |
(queue[i][0]+.5)/hresolu, |
| 793 |
> |
(queue[i][1]+.5)/vresolu); |
| 794 |
> |
*fbp++ = orig[0]; *fbp++ = orig[1]; *fbp++ = orig[2]; |
| 795 |
> |
*fbp++ = dir[0]; *fbp++ = dir[1]; *fbp++ = dir[2]; |
| 796 |
> |
} |
| 797 |
> |
/* mark end and get results */ |
| 798 |
> |
bzero((char *)fbp, 6*sizeof(float)); |
| 799 |
> |
if (process(PDesc, fbuf, fbuf, 4*sizeof(float)*queuesiz, |
| 800 |
> |
6*sizeof(float)*(queuesiz+1)) != |
| 801 |
> |
4*sizeof(float)*queuesiz) { |
| 802 |
> |
fprintf(stderr, "%s: error reading from rtrace process\n", |
| 803 |
> |
progname); |
| 804 |
> |
exit(1); |
| 805 |
> |
} |
| 806 |
> |
fbp = fbuf; |
| 807 |
> |
for (i = 0; i < queuesiz; i++) { |
| 808 |
|
if (ourexp > 0 && ourexp != 1.0) { |
| 809 |
< |
inbuf[0] *= ourexp; |
| 810 |
< |
inbuf[1] *= ourexp; |
| 811 |
< |
inbuf[2] *= ourexp; |
| 809 |
> |
fbp[0] *= ourexp; |
| 810 |
> |
fbp[1] *= ourexp; |
| 811 |
> |
fbp[2] *= ourexp; |
| 812 |
|
} |
| 813 |
|
setcolr(pscan(queue[i][1])[queue[i][0]], |
| 814 |
< |
inbuf[0], inbuf[1], inbuf[2]); |
| 815 |
< |
zscan(queue[i][1])[queue[i][0]] = inbuf[3]; |
| 814 |
> |
fbp[0], fbp[1], fbp[2]); |
| 815 |
> |
zscan(queue[i][1])[queue[i][0]] = fbp[3]; |
| 816 |
> |
fbp += 4; |
| 817 |
|
} |
| 818 |
|
queuesiz = 0; |
| 819 |
|
} |
| 820 |
|
|
| 821 |
|
|
| 822 |
< |
syserror() /* report error and exit */ |
| 822 |
> |
syserror(s) /* report error and exit */ |
| 823 |
> |
char *s; |
| 824 |
|
{ |
| 825 |
< |
perror(progname); |
| 825 |
> |
perror(s); |
| 826 |
|
exit(1); |
| 827 |
|
} |