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/* Copyright (c) 1995 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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> |
static const char RCSid[] = "$Id$"; |
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#endif |
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|
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/* |
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* Interpolate and extrapolate pictures with different view parameters. |
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* |
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* Greg Ward 09Dec89 |
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*/ |
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|
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< |
#include "standard.h" |
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> |
#include "copyright.h" |
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|
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#include <ctype.h> |
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#include <string.h> |
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|
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#include "platform.h" |
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#include "standard.h" |
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#include "rtprocess.h" /* Windows: must come before color.h */ |
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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 LOG2 0.69314718055994530942 |
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|
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#define pscan(y) (ourpict+(y)*hresolu) |
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#define averaging (ourweigh != NULL) |
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#define blurring (ourbpict != NULL) |
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#define usematrix (hasmatrix & !averaging) |
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< |
#define zisnorm (!usematrix | ourview.type != VT_PER) |
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> |
#define zisnorm ((!usematrix) | (ourview.type != VT_PER)) |
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|
| 33 |
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#define MAXWT 1000. /* maximum pixel weight (averaging) */ |
| 34 |
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|
| 37 |
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|
| 38 |
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#define PACKSIZ 256 /* max. calculation packet size */ |
| 39 |
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|
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< |
#define RTCOM "rtrace -h- -ovl -fff " |
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> |
#define RTCOM "rtrace -h- -ovl -fff -ld- -i- -I- " |
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|
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#define ABS(x) ((x)>0?(x):-(x)) |
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|
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COLOR *ourspict; /* output pixel sums (averaging) */ |
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float *ourweigh = NULL; /* output pixel weights (averaging) */ |
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float *ourzbuf; /* corresponding z-buffer */ |
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< |
COLOR *ourbpict = NULL; /* blurred picture */ |
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> |
COLOR *ourbpict = NULL; /* blurred picture (view averaging) */ |
| 63 |
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|
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VIEW avgview; /* average view for -B option */ |
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int nvavg; /* number of views averaged */ |
| 68 |
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|
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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 (*fillfunc)() = backfill; /* selected fill function */ |
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COLR backcolr = BLKCOLR; /* background color */ |
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COLOR backcolor = BLKCOLOR; /* background color (float) */ |
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double backz = 0.0; /* background z value */ |
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int normdist = 1; /* i/o normalized distance? */ |
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+ |
char ourfmt[LPICFMT+1] = PICFMT; /* original picture format */ |
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double ourexp = -1; /* original picture exposure */ |
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int expadj = 0; /* exposure adjustment (f-stops) */ |
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double rexpadj = 1; /* real exposure adjustment */ |
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MAT4 theirs2ours; /* transformation matrix */ |
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int hasmatrix = 0; /* has transformation matrix */ |
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|
| 88 |
< |
int PDesc[3] = {-1,-1,-1}; /* rtrace process descriptor */ |
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< |
#define childpid (PDesc[2]) |
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> |
static SUBPROC PDesc = SP_INACTIVE; /* rtrace process descriptor */ |
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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 */ |
| 91 |
> |
int queuesiz = 0; /* number of pixels pending */ |
| 92 |
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|
| 93 |
< |
extern double movepixel(); |
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> |
typedef void fillfunc_t(int x, int y); |
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|
| 95 |
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static gethfunc headline; |
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static int nextview(FILE *fp); |
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static void compavgview(void); |
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static void addpicture(char *pfile, char *zspec); |
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static int pixform(MAT4 xfmat, VIEW *vw1, VIEW *vw2); |
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static void addscanline(struct bound *xl, int y, |
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COLR *pline, float *zline, struct position *lasty); |
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static void addpixel(struct position *p0, struct position *p1, |
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struct position *p2, COLR pix, double w, double z); |
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static double movepixel(FVECT pos); |
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static int getperim(struct bound *xl, struct bound *yl, float *zline, int zfd); |
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static void backpicture(fillfunc_t *fill, int samp); |
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static void fillpicture(fillfunc_t *fill); |
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static int clipaft(void); |
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static int addblur(void); |
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static void writepicture(void); |
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static void writedistance(char *fname); |
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static fillfunc_t backfill; |
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static fillfunc_t rcalfill; |
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static void calstart(char *prog, char *args); |
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static void caldone(void); |
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static void clearqueue(void); |
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static void syserror(char *s); |
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|
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main(argc, argv) /* interpolate pictures */ |
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int argc; |
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< |
char *argv[]; |
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> |
fillfunc_t *fillfunc = backfill; /* selected fill function */ |
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> |
|
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int |
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> |
main( /* interpolate pictures */ |
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> |
int argc, |
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> |
char *argv[] |
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> |
) |
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{ |
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#define check(ol,al) if (argv[an][ol] || \ |
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badarg(argc-an-1,argv+an+1,al)) \ |
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char *expcomp = NULL; |
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int i, an, rval; |
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|
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SET_DEFAULT_BINARY(); |
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SET_FILE_BINARY(stdout); |
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|
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progname = argv[0]; |
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|
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for (an = 1; an < argc && argv[an][0] == '-'; an++) { |
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if (argv[an][2] != 'f') |
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goto badopt; |
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check(3,"s"); |
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< |
gotvfile = viewfile(argv[++an], &ourview, 0, 0); |
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> |
gotvfile = viewfile(argv[++an], &ourview, NULL); |
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if (gotvfile < 0) |
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syserror(argv[an]); |
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else if (gotvfile == 0) { |
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fillo &= ~F_BACK; |
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if (doavg < 0) |
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doavg = (argc-an) > 2; |
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< |
if (expcomp != NULL) |
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< |
if (expcomp[0] == '+' | expcomp[0] == '-') { |
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> |
if (expcomp != NULL) { |
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> |
if ((expcomp[0] == '+') | (expcomp[0] == '-')) { |
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expadj = atof(expcomp) + (expcomp[0]=='+' ? .5 : -.5); |
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if (doavg | doblur) |
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rexpadj = pow(2.0, atof(expcomp)); |
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if (!(doavg | doblur)) |
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rexpadj = pow(2.0, (double)expadj); |
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} |
| 279 |
+ |
} |
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/* set view */ |
| 281 |
< |
if (nextview(doblur ? stdin : NULL) == EOF) { |
| 281 |
> |
if (nextview(doblur ? stdin : (FILE *)NULL) == EOF) { |
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|
fprintf(stderr, "%s: no view on standard input!\n", |
| 283 |
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progname); |
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exit(1); |
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if (doavg) { |
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ourspict = (COLOR *)bmalloc(hresolu*vresolu*sizeof(COLOR)); |
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ourweigh = (float *)bmalloc(hresolu*vresolu*sizeof(float)); |
| 291 |
< |
if (ourspict == NULL | ourweigh == NULL) |
| 291 |
> |
if ((ourspict == NULL) | (ourweigh == NULL)) |
| 292 |
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syserror(progname); |
| 293 |
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} else { |
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ourpict = (COLR *)bmalloc(hresolu*vresolu*sizeof(COLR)); |
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syserror(progname); |
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/* new header */ |
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newheader("RADIANCE", stdout); |
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+ |
fputnow(stdout); |
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/* run pictures */ |
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do { |
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< |
bzero((char *)ourzbuf, hresolu*vresolu*sizeof(float)); |
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> |
memset((char *)ourzbuf, '\0', hresolu*vresolu*sizeof(float)); |
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for (i = an; i < argc; i += 2) |
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addpicture(argv[i], argv[i+1]); |
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if (fillo&F_BACK) /* fill in spaces */ |
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fprintview(&avgview, stdout); |
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putc('\n', stdout); |
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} |
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< |
if (pixaspect < .99 | pixaspect > 1.01) |
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> |
if ((pixaspect < .99) | (pixaspect > 1.01)) |
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fputaspect(pixaspect, stdout); |
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if (ourexp > 0) |
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ourexp *= rexpadj; |
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else |
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ourexp = rexpadj; |
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if (ourexp < .995 | ourexp > 1.005) |
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> |
if ((ourexp < .995) | (ourexp > 1.005)) |
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fputexpos(ourexp, stdout); |
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< |
fputformat(COLRFMT, stdout); |
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> |
if (strcmp(ourfmt, PICFMT)) /* print format if known */ |
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> |
fputformat(ourfmt, stdout); |
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putc('\n', stdout); |
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/* write picture */ |
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writepicture(); |
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} |
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|
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|
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headline(s) /* process header string */ |
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< |
char *s; |
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> |
static int |
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> |
headline( /* process header string */ |
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> |
char *s, |
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> |
void *p |
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> |
) |
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{ |
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< |
char fmt[32]; |
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> |
char fmt[MAXFMTLEN]; |
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|
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if (isheadid(s)) |
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< |
return; |
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> |
return(0); |
| 368 |
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if (formatval(fmt, s)) { |
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< |
wrongformat = strcmp(fmt, COLRFMT); |
| 370 |
< |
return; |
| 369 |
> |
if (globmatch(ourfmt, fmt)) { |
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> |
wrongformat = 0; |
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> |
strcpy(ourfmt, fmt); |
| 372 |
> |
} else |
| 373 |
> |
wrongformat = 1; |
| 374 |
> |
return(0); |
| 375 |
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} |
| 376 |
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if (nvavg < 2) { |
| 377 |
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putc('\t', stdout); |
| 379 |
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} |
| 380 |
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if (isexpos(s)) { |
| 381 |
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theirexp *= exposval(s); |
| 382 |
< |
return; |
| 382 |
> |
return(0); |
| 383 |
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} |
| 384 |
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if (isview(s) && sscanview(&theirview, s) > 0) |
| 385 |
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gotview++; |
| 386 |
+ |
return(0); |
| 387 |
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} |
| 388 |
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|
| 389 |
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|
| 390 |
< |
nextview(fp) /* get and set next view */ |
| 391 |
< |
FILE *fp; |
| 390 |
> |
static int |
| 391 |
> |
nextview( /* get and set next view */ |
| 392 |
> |
FILE *fp |
| 393 |
> |
) |
| 394 |
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{ |
| 395 |
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char linebuf[256]; |
| 396 |
|
char *err; |
| 397 |
< |
register int i; |
| 397 |
> |
int i; |
| 398 |
|
|
| 399 |
|
if (fp != NULL) { |
| 400 |
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do /* get new view */ |
| 408 |
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exit(1); |
| 409 |
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} |
| 410 |
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if (!nvavg) { /* first view */ |
| 411 |
< |
copystruct(&avgview, &ourview); |
| 411 |
> |
avgview = ourview; |
| 412 |
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return(nvavg++); |
| 413 |
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} |
| 414 |
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/* add to average view */ |
| 417 |
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avgview.vdir[i] += ourview.vdir[i]; |
| 418 |
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avgview.vup[i] += ourview.vup[i]; |
| 419 |
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} |
| 420 |
+ |
avgview.vdist += ourview.vdist; |
| 421 |
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avgview.horiz += ourview.horiz; |
| 422 |
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avgview.vert += ourview.vert; |
| 423 |
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avgview.hoff += ourview.hoff; |
| 428 |
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} |
| 429 |
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|
| 430 |
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|
| 431 |
< |
compavgview() /* compute average view */ |
| 431 |
> |
static void |
| 432 |
> |
compavgview(void) /* compute average view */ |
| 433 |
|
{ |
| 434 |
< |
register int i; |
| 434 |
> |
int i; |
| 435 |
|
double f; |
| 436 |
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|
| 437 |
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if (nvavg < 2) |
| 442 |
|
avgview.vdir[i] *= f; |
| 443 |
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avgview.vup[i] *= f; |
| 444 |
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} |
| 445 |
+ |
avgview.vdist *= f; |
| 446 |
|
avgview.horiz *= f; |
| 447 |
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avgview.vert *= f; |
| 448 |
|
avgview.hoff *= f; |
| 450 |
|
avgview.vfore *= f; |
| 451 |
|
avgview.vaft *= f; |
| 452 |
|
if (setview(&avgview) != NULL) /* in case of emergency... */ |
| 453 |
< |
copystruct(&avgview, &ourview); |
| 453 |
> |
avgview = ourview; |
| 454 |
|
pixaspect = viewaspect(&avgview) * hresolu / vresolu; |
| 455 |
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} |
| 456 |
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|
| 457 |
|
|
| 458 |
< |
addpicture(pfile, zspec) /* add picture to output */ |
| 459 |
< |
char *pfile, *zspec; |
| 458 |
> |
static void |
| 459 |
> |
addpicture( /* add picture to output */ |
| 460 |
> |
char *pfile, |
| 461 |
> |
char *zspec |
| 462 |
> |
) |
| 463 |
|
{ |
| 464 |
|
FILE *pfp; |
| 465 |
|
int zfd; |
| 474 |
|
syserror(pfile); |
| 475 |
|
/* get header with exposure and view */ |
| 476 |
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theirexp = 1.0; |
| 477 |
< |
copystruct(&theirview, &stdview); |
| 477 |
> |
theirview = stdview; |
| 478 |
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gotview = 0; |
| 479 |
|
if (nvavg < 2) |
| 480 |
|
printf("%s:\n", pfile); |
| 487 |
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ourexp = theirexp; |
| 488 |
|
else if (ABS(theirexp-ourexp) > .01*ourexp) |
| 489 |
|
fprintf(stderr, "%s: different exposure (warning)\n", pfile); |
| 490 |
< |
if (err = setview(&theirview)) { |
| 490 |
> |
if ( (err = setview(&theirview)) ) { |
| 491 |
|
fprintf(stderr, "%s: %s\n", pfile, err); |
| 492 |
|
exit(1); |
| 493 |
|
} |
| 497 |
|
zin = (float *)malloc(scanlen(&tresolu)*sizeof(float)); |
| 498 |
|
if (zin == NULL) |
| 499 |
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syserror(progname); |
| 500 |
< |
if ((zfd = open(zspec, O_RDONLY)) == -1) { |
| 500 |
> |
if ((zfd = open_float_depth(zspec, (long)tresolu.xr*tresolu.yr)) < 0) { |
| 501 |
|
double zvalue; |
| 502 |
< |
register int x; |
| 502 |
> |
int x; |
| 503 |
|
if (!isflt(zspec) || (zvalue = atof(zspec)) <= 0.0) |
| 504 |
|
syserror(zspec); |
| 505 |
|
for (x = scanlen(&tresolu); x-- > 0; ) |
| 510 |
|
if (xlim == NULL) |
| 511 |
|
syserror(progname); |
| 512 |
|
if (!getperim(xlim, &ylim, zin, zfd)) { /* overlapping area? */ |
| 513 |
< |
free((char *)zin); |
| 514 |
< |
free((char *)xlim); |
| 513 |
> |
free((void *)zin); |
| 514 |
> |
free((void *)xlim); |
| 515 |
|
if (zfd != -1) |
| 516 |
|
close(zfd); |
| 517 |
|
fclose(pfp); |
| 521 |
|
scanin = (COLR *)malloc(scanlen(&tresolu)*sizeof(COLR)); |
| 522 |
|
plast = (struct position *)calloc(scanlen(&tresolu), |
| 523 |
|
sizeof(struct position)); |
| 524 |
< |
if (scanin == NULL | plast == NULL) |
| 524 |
> |
if ((scanin == NULL) | (plast == NULL)) |
| 525 |
|
syserror(progname); |
| 526 |
|
/* skip to starting point */ |
| 527 |
|
for (y = 0; y < ylim.min; y++) |
| 530 |
|
exit(1); |
| 531 |
|
} |
| 532 |
|
if (zfd != -1 && lseek(zfd, |
| 533 |
< |
(long)ylim.min*scanlen(&tresolu)*sizeof(float), 0) < 0) |
| 533 |
> |
(off_t)ylim.min*scanlen(&tresolu)*sizeof(float), |
| 534 |
> |
SEEK_SET) < 0) |
| 535 |
|
syserror(zspec); |
| 536 |
|
/* load image */ |
| 537 |
|
for (y = ylim.min; y <= ylim.max; y++) { |
| 546 |
|
addscanline(xlim+y, y, scanin, zin, plast); |
| 547 |
|
} |
| 548 |
|
/* clean up */ |
| 549 |
< |
free((char *)xlim); |
| 550 |
< |
free((char *)scanin); |
| 551 |
< |
free((char *)zin); |
| 552 |
< |
free((char *)plast); |
| 549 |
> |
free((void *)xlim); |
| 550 |
> |
free((void *)scanin); |
| 551 |
> |
free((void *)zin); |
| 552 |
> |
free((void *)plast); |
| 553 |
|
fclose(pfp); |
| 554 |
|
if (zfd != -1) |
| 555 |
|
close(zfd); |
| 556 |
|
} |
| 557 |
|
|
| 558 |
|
|
| 559 |
< |
pixform(xfmat, vw1, vw2) /* compute view1 to view2 matrix */ |
| 560 |
< |
register MAT4 xfmat; |
| 561 |
< |
register VIEW *vw1, *vw2; |
| 559 |
> |
static int |
| 560 |
> |
pixform( /* compute view1 to view2 matrix */ |
| 561 |
> |
MAT4 xfmat, |
| 562 |
> |
VIEW *vw1, |
| 563 |
> |
VIEW *vw2 |
| 564 |
> |
) |
| 565 |
|
{ |
| 566 |
< |
double m4t[4][4]; |
| 566 |
> |
MAT4 m4t; |
| 567 |
|
|
| 568 |
< |
if (vw1->type != VT_PER && vw1->type != VT_PAR) |
| 568 |
> |
if ((vw1->type != VT_PER) & (vw1->type != VT_PAR)) |
| 569 |
|
return(0); |
| 570 |
< |
if (vw2->type != VT_PER && vw2->type != VT_PAR) |
| 570 |
> |
if ((vw2->type != VT_PER) & (vw2->type != VT_PAR)) |
| 571 |
|
return(0); |
| 572 |
|
setident4(xfmat); |
| 573 |
|
xfmat[0][0] = vw1->hvec[0]; |
| 600 |
|
} |
| 601 |
|
|
| 602 |
|
|
| 603 |
< |
addscanline(xl, y, pline, zline, lasty) /* add scanline to output */ |
| 604 |
< |
struct bound *xl; |
| 605 |
< |
int y; |
| 606 |
< |
COLR *pline; |
| 607 |
< |
float *zline; |
| 608 |
< |
struct position *lasty; /* input/output */ |
| 603 |
> |
static void |
| 604 |
> |
addscanline( /* add scanline to output */ |
| 605 |
> |
struct bound *xl, |
| 606 |
> |
int y, |
| 607 |
> |
COLR *pline, |
| 608 |
> |
float *zline, |
| 609 |
> |
struct position *lasty /* input/output */ |
| 610 |
> |
) |
| 611 |
|
{ |
| 612 |
|
FVECT pos; |
| 613 |
|
struct position lastx, newpos; |
| 614 |
|
double wt; |
| 615 |
< |
register int x; |
| 615 |
> |
int x; |
| 616 |
|
|
| 617 |
|
lastx.z = 0; |
| 618 |
|
for (x = xl->max; x >= xl->min; x--) { |
| 634 |
|
} |
| 635 |
|
|
| 636 |
|
|
| 637 |
< |
addpixel(p0, p1, p2, pix, w, z) /* fill in pixel parallelogram */ |
| 638 |
< |
struct position *p0, *p1, *p2; |
| 639 |
< |
COLR pix; |
| 640 |
< |
double w; |
| 641 |
< |
double z; |
| 637 |
> |
static void |
| 638 |
> |
addpixel( /* fill in pixel parallelogram */ |
| 639 |
> |
struct position *p0, |
| 640 |
> |
struct position *p1, |
| 641 |
> |
struct position *p2, |
| 642 |
> |
COLR pix, |
| 643 |
> |
double w, |
| 644 |
> |
double z |
| 645 |
> |
) |
| 646 |
|
{ |
| 647 |
|
double zt = 2.*zeps*p0->z; /* threshold */ |
| 648 |
|
COLOR pval; /* converted+weighted pixel */ |
| 650 |
|
int l1, l2, c1, c2; /* side lengths and counters */ |
| 651 |
|
int p1isy; /* p0p1 along y? */ |
| 652 |
|
int x1, y1; /* p1 position */ |
| 653 |
< |
register int x, y; /* final position */ |
| 653 |
> |
int x, y; /* final position */ |
| 654 |
|
|
| 655 |
|
/* compute vector p0p1 */ |
| 656 |
|
if (fillo&F_FORE && ABS(p1->z-p0->z) <= zt) { |
| 657 |
|
s1x = p1->x - p0->x; |
| 658 |
|
s1y = p1->y - p0->y; |
| 659 |
|
l1 = ABS(s1x); |
| 660 |
< |
if (p1isy = (ABS(s1y) > l1)) |
| 660 |
> |
if ( (p1isy = (ABS(s1y) > l1)) ) |
| 661 |
|
l1 = ABS(s1y); |
| 662 |
|
else if (l1 < 1) |
| 663 |
|
l1 = 1; |
| 690 |
|
y1 = p0->y + c1*s1y/l1; |
| 691 |
|
for (c2 = l2; c2-- > 0; ) { |
| 692 |
|
x = x1 + c2*s2x/l2; |
| 693 |
< |
if (x < 0 || x >= hresolu) |
| 693 |
> |
if ((x < 0) | (x >= hresolu)) |
| 694 |
|
continue; |
| 695 |
|
y = y1 + c2*s2y/l2; |
| 696 |
< |
if (y < 0 || y >= vresolu) |
| 696 |
> |
if ((y < 0) | (y >= vresolu)) |
| 697 |
|
continue; |
| 698 |
|
if (averaging) { |
| 699 |
|
if (zscan(y)[x] <= 0 || zscan(y)[x]-z |
| 715 |
|
} |
| 716 |
|
|
| 717 |
|
|
| 718 |
< |
double |
| 719 |
< |
movepixel(pos) /* reposition image point */ |
| 720 |
< |
register FVECT pos; |
| 718 |
> |
static double |
| 719 |
> |
movepixel( /* reposition image point */ |
| 720 |
> |
FVECT pos |
| 721 |
> |
) |
| 722 |
|
{ |
| 723 |
|
FVECT pt, tdir, odir; |
| 724 |
|
double d; |
| 669 |
– |
register int i; |
| 725 |
|
|
| 726 |
|
if (pos[2] <= 0) /* empty pixel */ |
| 727 |
|
return(0); |
| 728 |
|
if (usematrix) { |
| 729 |
|
pos[0] += theirview.hoff - .5; |
| 730 |
|
pos[1] += theirview.voff - .5; |
| 731 |
< |
if (normdist && theirview.type == VT_PER) |
| 731 |
> |
if (normdist & (theirview.type == VT_PER)) |
| 732 |
|
d = sqrt(1. + pos[0]*pos[0]*theirview.hn2 |
| 733 |
|
+ pos[1]*pos[1]*theirview.vn2); |
| 734 |
|
else |
| 752 |
|
} else { |
| 753 |
|
if (viewray(pt, tdir, &theirview, pos[0], pos[1]) < -FTINY) |
| 754 |
|
return(0); |
| 755 |
< |
if (!normdist & theirview.type == VT_PER) /* adjust */ |
| 756 |
< |
pos[2] *= sqrt(1. + pos[0]*pos[0]*theirview.hn2 |
| 702 |
< |
+ pos[1]*pos[1]*theirview.vn2); |
| 755 |
> |
if ((!normdist) & (theirview.type == VT_PER)) /* adjust */ |
| 756 |
> |
pos[2] /= DOT(theirview.vdir, tdir); |
| 757 |
|
pt[0] += tdir[0]*pos[2]; |
| 758 |
|
pt[1] += tdir[1]*pos[2]; |
| 759 |
|
pt[2] += tdir[2]*pos[2]; |
| 760 |
< |
viewloc(pos, &ourview, pt); |
| 707 |
< |
if (pos[2] <= 0) |
| 760 |
> |
if (viewloc(pos, &ourview, pt) <= 0) |
| 761 |
|
return(0); |
| 762 |
|
} |
| 763 |
< |
if (pos[0] < 0 || pos[0] >= 1-FTINY || pos[1] < 0 || pos[1] >= 1-FTINY) |
| 763 |
> |
if ((pos[0] < 0) | (pos[0] >= 1-FTINY) | (pos[1] < 0) | (pos[1] >= 1-FTINY)) |
| 764 |
|
return(0); |
| 765 |
|
if (!averaging) |
| 766 |
|
return(1); |
| 767 |
< |
if (ourview.type == VT_PAR) /* compute our direction */ |
| 768 |
< |
VCOPY(odir, ourview.vdir); |
| 769 |
< |
else |
| 770 |
< |
for (i = 0; i < 3; i++) |
| 771 |
< |
odir[i] = (pt[i] - ourview.vp[i])/pos[2]; |
| 772 |
< |
d = DOT(odir,tdir); /* compute pixel weight */ |
| 773 |
< |
if (d >= 1.-1./MAXWT/MAXWT) |
| 767 |
> |
/* compute pixel weight */ |
| 768 |
> |
if (ourview.type == VT_PAR) { |
| 769 |
> |
d = DOT(ourview.vdir,tdir); |
| 770 |
> |
d = 1. - d*d; |
| 771 |
> |
} else { |
| 772 |
> |
VSUB(odir, pt, ourview.vp); |
| 773 |
> |
d = DOT(odir,tdir); |
| 774 |
> |
d = 1. - d*d/DOT(odir,odir); |
| 775 |
> |
} |
| 776 |
> |
if (d <= 1./MAXWT/MAXWT) |
| 777 |
|
return(MAXWT); /* clip to maximum weight */ |
| 778 |
< |
return(1./sqrt(1.-d)); |
| 778 |
> |
return(1./sqrt(d)); |
| 779 |
|
} |
| 780 |
|
|
| 781 |
|
|
| 782 |
< |
getperim(xl, yl, zline, zfd) /* compute overlapping image area */ |
| 783 |
< |
register struct bound *xl; |
| 784 |
< |
struct bound *yl; |
| 785 |
< |
float *zline; |
| 786 |
< |
int zfd; |
| 782 |
> |
static int |
| 783 |
> |
getperim( /* compute overlapping image area */ |
| 784 |
> |
struct bound *xl, |
| 785 |
> |
struct bound *yl, |
| 786 |
> |
float *zline, |
| 787 |
> |
int zfd |
| 788 |
> |
) |
| 789 |
|
{ |
| 790 |
|
int step; |
| 791 |
|
FVECT pos; |
| 792 |
< |
register int x, y; |
| 792 |
> |
int x, y; |
| 793 |
|
/* set up step size */ |
| 794 |
|
if (scanlen(&tresolu) < numscans(&tresolu)) |
| 795 |
|
step = scanlen(&tresolu)/NSTEPS; |
| 808 |
|
yl->min = 32000; yl->max = 0; /* search for points on image */ |
| 809 |
|
for (y = step - 1; y < numscans(&tresolu); y += step) { |
| 810 |
|
if (zfd != -1) { |
| 811 |
< |
if (lseek(zfd, (long)y*scanlen(&tresolu)*sizeof(float), |
| 812 |
< |
0) < 0) |
| 811 |
> |
if (lseek(zfd, (off_t)y*scanlen(&tresolu)*sizeof(float), |
| 812 |
> |
SEEK_SET) < 0) |
| 813 |
|
syserror("lseek"); |
| 814 |
|
if (read(zfd, (char *)zline, |
| 815 |
|
scanlen(&tresolu)*sizeof(float)) |
| 854 |
|
xl[y-1].max = xl[y-step].max; |
| 855 |
|
} |
| 856 |
|
for (x = 2; x < step; x++) |
| 857 |
< |
copystruct(xl+y-x, xl+y-1); |
| 857 |
> |
*(xl+y-x) = *(xl+y-1); |
| 858 |
|
} |
| 859 |
|
if (yl->max >= numscans(&tresolu)) |
| 860 |
|
yl->max = numscans(&tresolu) - 1; |
| 861 |
|
y -= step; |
| 862 |
|
for (x = numscans(&tresolu) - 1; x > y; x--) /* fill bottom rows */ |
| 863 |
< |
copystruct(xl+x, xl+y); |
| 863 |
> |
*(xl+x) = *(xl+y); |
| 864 |
|
return(yl->max >= yl->min); |
| 865 |
|
} |
| 866 |
|
|
| 867 |
|
|
| 868 |
< |
backpicture(fill, samp) /* background fill algorithm */ |
| 869 |
< |
int (*fill)(); |
| 870 |
< |
int samp; |
| 868 |
> |
static void |
| 869 |
> |
backpicture( /* background fill algorithm */ |
| 870 |
> |
fillfunc_t *fill, |
| 871 |
> |
int samp |
| 872 |
> |
) |
| 873 |
|
{ |
| 874 |
|
int *yback, xback; |
| 875 |
|
int y; |
| 876 |
< |
register int x, i; |
| 876 |
> |
int x, i; |
| 877 |
|
/* get back buffer */ |
| 878 |
|
yback = (int *)malloc(hresolu*sizeof(int)); |
| 879 |
|
if (yback == NULL) |
| 971 |
|
xback = -2; |
| 972 |
|
} |
| 973 |
|
} |
| 974 |
< |
free((char *)yback); |
| 974 |
> |
free((void *)yback); |
| 975 |
|
} |
| 976 |
|
|
| 977 |
|
|
| 978 |
< |
fillpicture(fill) /* paint in empty pixels using fill */ |
| 979 |
< |
int (*fill)(); |
| 978 |
> |
static void |
| 979 |
> |
fillpicture( /* paint in empty pixels using fill */ |
| 980 |
> |
fillfunc_t *fill |
| 981 |
> |
) |
| 982 |
|
{ |
| 983 |
< |
register int x, y; |
| 983 |
> |
int x, y; |
| 984 |
|
|
| 985 |
|
for (y = 0; y < vresolu; y++) |
| 986 |
|
for (x = 0; x < hresolu; x++) |
| 987 |
|
if (zscan(y)[x] <= 0) |
| 988 |
|
(*fill)(x,y); |
| 989 |
+ |
if (fill == rcalfill) |
| 990 |
+ |
clearqueue(); |
| 991 |
|
} |
| 992 |
|
|
| 993 |
|
|
| 994 |
< |
clipaft() /* perform aft clipping as indicated */ |
| 994 |
> |
static int |
| 995 |
> |
clipaft(void) /* perform aft clipping as indicated */ |
| 996 |
|
{ |
| 997 |
< |
register int x, y; |
| 998 |
< |
int adjtest = ourview.type == VT_PER & zisnorm; |
| 997 |
> |
int x, y; |
| 998 |
> |
int adjtest = (ourview.type == VT_PER) & zisnorm; |
| 999 |
|
double tstdist; |
| 1000 |
|
double yzn2, vx; |
| 1001 |
|
|
| 1018 |
|
continue; |
| 1019 |
|
} |
| 1020 |
|
if (averaging) |
| 1021 |
< |
bzero(sscan(y)[x], sizeof(COLOR)); |
| 1021 |
> |
memset(sscan(y)[x], '\0', sizeof(COLOR)); |
| 1022 |
|
else |
| 1023 |
< |
bzero(pscan(y)[x], sizeof(COLR)); |
| 1023 |
> |
memset(pscan(y)[x], '\0', sizeof(COLR)); |
| 1024 |
|
zscan(y)[x] = 0.0; |
| 1025 |
|
} |
| 1026 |
|
} |
| 1028 |
|
} |
| 1029 |
|
|
| 1030 |
|
|
| 1031 |
< |
addblur() /* add to blurred picture */ |
| 1031 |
> |
static int |
| 1032 |
> |
addblur(void) /* add to blurred picture */ |
| 1033 |
|
{ |
| 1034 |
|
COLOR cval; |
| 1035 |
|
double d; |
| 1036 |
< |
register int i; |
| 1036 |
> |
int i; |
| 1037 |
|
|
| 1038 |
|
if (!blurring) |
| 1039 |
|
return(0); |
| 1069 |
|
} |
| 1070 |
|
|
| 1071 |
|
|
| 1072 |
< |
writepicture() /* write out picture (alters buffer) */ |
| 1072 |
> |
static void |
| 1073 |
> |
writepicture(void) /* write out picture (alters buffer) */ |
| 1074 |
|
{ |
| 1075 |
|
int y; |
| 1076 |
< |
register int x; |
| 1076 |
> |
int x; |
| 1077 |
|
double d; |
| 1078 |
|
|
| 1079 |
|
fprtresolu(hresolu, vresolu, stdout); |
| 1101 |
|
} |
| 1102 |
|
|
| 1103 |
|
|
| 1104 |
< |
writedistance(fname) /* write out z file (alters buffer) */ |
| 1105 |
< |
char *fname; |
| 1104 |
> |
static void |
| 1105 |
> |
writedistance( /* write out z file (alters buffer) */ |
| 1106 |
> |
char *fname |
| 1107 |
> |
) |
| 1108 |
|
{ |
| 1109 |
|
int donorm = normdist & !zisnorm ? 1 : |
| 1110 |
< |
ourview.type == VT_PER & !normdist & zisnorm ? -1 : 0; |
| 1110 |
> |
(ourview.type == VT_PER) & !normdist & zisnorm ? -1 : 0; |
| 1111 |
|
int fd; |
| 1112 |
|
int y; |
| 1113 |
|
|
| 1116 |
|
for (y = vresolu-1; y >= 0; y--) { |
| 1117 |
|
if (donorm) { |
| 1118 |
|
double vx, yzn2, d; |
| 1119 |
< |
register int x; |
| 1119 |
> |
int x; |
| 1120 |
|
yzn2 = (y+.5)/vresolu + ourview.voff - .5; |
| 1121 |
|
yzn2 = 1. + yzn2*yzn2*ourview.vn2; |
| 1122 |
|
for (x = 0; x < hresolu; x++) { |
| 1136 |
|
} |
| 1137 |
|
|
| 1138 |
|
|
| 1139 |
< |
backfill(x, y) /* fill pixel with background */ |
| 1140 |
< |
int x, y; |
| 1139 |
> |
static void |
| 1140 |
> |
backfill( /* fill pixel with background */ |
| 1141 |
> |
int x, |
| 1142 |
> |
int y |
| 1143 |
> |
) |
| 1144 |
|
{ |
| 1145 |
|
if (averaging) { |
| 1146 |
|
copycolor(sscan(y)[x], backcolor); |
| 1151 |
|
} |
| 1152 |
|
|
| 1153 |
|
|
| 1154 |
< |
calstart(prog, args) /* start fill calculation */ |
| 1155 |
< |
char *prog, *args; |
| 1154 |
> |
static void |
| 1155 |
> |
calstart( /* start fill calculation */ |
| 1156 |
> |
char *prog, |
| 1157 |
> |
char *args |
| 1158 |
> |
) |
| 1159 |
|
{ |
| 1160 |
|
char combuf[512]; |
| 1161 |
|
char *argv[64]; |
| 1162 |
|
int rval; |
| 1163 |
< |
register char **wp, *cp; |
| 1163 |
> |
char **wp, *cp; |
| 1164 |
|
|
| 1165 |
< |
if (childpid != -1) { |
| 1165 |
> |
if (PDesc.running) { |
| 1166 |
|
fprintf(stderr, "%s: too many calculations\n", progname); |
| 1167 |
|
exit(1); |
| 1168 |
|
} |
| 1181 |
|
} |
| 1182 |
|
*wp = NULL; |
| 1183 |
|
/* start process */ |
| 1184 |
< |
if ((rval = open_process(PDesc, argv)) < 0) |
| 1184 |
> |
if ((rval = open_process(&PDesc, argv)) < 0) |
| 1185 |
|
syserror(progname); |
| 1186 |
|
if (rval == 0) { |
| 1187 |
|
fprintf(stderr, "%s: command not found\n", argv[0]); |
| 1194 |
|
} |
| 1195 |
|
|
| 1196 |
|
|
| 1197 |
< |
caldone() /* done with calculation */ |
| 1197 |
> |
static void |
| 1198 |
> |
caldone(void) /* done with calculation */ |
| 1199 |
|
{ |
| 1200 |
< |
if (childpid == -1) |
| 1200 |
> |
if (!PDesc.running) |
| 1201 |
|
return; |
| 1202 |
|
clearqueue(); |
| 1203 |
< |
close_process(PDesc); |
| 1128 |
< |
childpid = -1; |
| 1203 |
> |
close_process(&PDesc); |
| 1204 |
|
} |
| 1205 |
|
|
| 1206 |
|
|
| 1207 |
< |
rcalfill(x, y) /* fill with ray-calculated pixel */ |
| 1208 |
< |
int x, y; |
| 1207 |
> |
static void |
| 1208 |
> |
rcalfill( /* fill with ray-calculated pixel */ |
| 1209 |
> |
int x, |
| 1210 |
> |
int y |
| 1211 |
> |
) |
| 1212 |
|
{ |
| 1213 |
|
if (queuesiz >= packsiz) /* flush queue if needed */ |
| 1214 |
|
clearqueue(); |
| 1219 |
|
} |
| 1220 |
|
|
| 1221 |
|
|
| 1222 |
< |
clearqueue() /* process queue */ |
| 1222 |
> |
static void |
| 1223 |
> |
clearqueue(void) /* process queue */ |
| 1224 |
|
{ |
| 1225 |
|
FVECT orig, dir; |
| 1226 |
|
float fbuf[6*(PACKSIZ+1)]; |
| 1227 |
< |
register float *fbp; |
| 1228 |
< |
register int i; |
| 1227 |
> |
float *fbp; |
| 1228 |
> |
int i; |
| 1229 |
|
double vx, vy; |
| 1230 |
|
|
| 1231 |
|
if (queuesiz == 0) |
| 1239 |
|
*fbp++ = dir[0]; *fbp++ = dir[1]; *fbp++ = dir[2]; |
| 1240 |
|
} |
| 1241 |
|
/* mark end and get results */ |
| 1242 |
< |
bzero((char *)fbp, 6*sizeof(float)); |
| 1243 |
< |
if (process(PDesc, fbuf, fbuf, 4*sizeof(float)*queuesiz, |
| 1242 |
> |
memset((char *)fbp, '\0', 6*sizeof(float)); |
| 1243 |
> |
if (process(&PDesc, (char *)fbuf, (char *)fbuf, |
| 1244 |
> |
4*sizeof(float)*(queuesiz+1), |
| 1245 |
|
6*sizeof(float)*(queuesiz+1)) != |
| 1246 |
< |
4*sizeof(float)*queuesiz) { |
| 1246 |
> |
4*sizeof(float)*(queuesiz+1)) { |
| 1247 |
|
fprintf(stderr, "%s: error reading from rtrace process\n", |
| 1248 |
|
progname); |
| 1249 |
|
exit(1); |
| 1276 |
|
} |
| 1277 |
|
|
| 1278 |
|
|
| 1279 |
< |
syserror(s) /* report error and exit */ |
| 1280 |
< |
char *s; |
| 1279 |
> |
static void |
| 1280 |
> |
syserror( /* report error and exit */ |
| 1281 |
> |
char *s |
| 1282 |
> |
) |
| 1283 |
|
{ |
| 1284 |
|
perror(s); |
| 1285 |
|
exit(1); |