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#ifndef lint
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static const char RCSid[] = "$Id: xdebugamb.c,v 3.1 2003/02/22 02:07:28 greg Exp $";
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#endif
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---
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> static char SCCSid[] = "@(#)ambient.c 2.29 5/2/95 LBL";
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68c68
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< #define tracktime (shm_boundary == NULL || ambfp == NULL)
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---
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> #define tracktime 0
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249a250
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> printf("check %e %e %e\n", av->pos[0], av->pos[1], av->pos[2]);
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289a291
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> printf("use %e %e %e\n", av->pos[0], av->pos[1], av->pos[2]);
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508a511
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> printf("insert %e %e %e\n", av->pos[0], av->pos[1], av->pos[2]);
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*/
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/*
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* Display an image and watch the rays get traced.
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*
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* 9/21/90 Greg Ward
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*/
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#include "standard.h"
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#include "view.h"
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#include <time.h>
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#include "resolu.h"
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#include <ctype.h>
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#include <X11/Xlib.h>
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#define MAXDEPTH 32 /* ridiculous ray tree depth */
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#ifdef SMLFLT
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#define sscanvec(s,v) (sscanf(s,"%f %f %f",v,v+1,v+2)==3)
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#else
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#define sscanvec(s,v) (sscanf(s,"%lf %lf %lf",v,v+1,v+2)==3)
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#endif
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char rtcom[] = "rtrace -h- -otp -fa -x 1";
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char xicom[] = "ximage -c 128";
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VIEW ourview = STDVIEW; /* view for picture */
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RESOLU ourres; /* picture resolution */
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char *progname; /* program name */
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char *picture; /* picture name */
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float *zbuffer;
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#define zval(x,y) (zbuffer[(y)*scanlen(&ourres)+(x)])
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FILE *pin; /* input stream */
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Display *theDisplay = NULL; /* connection to server */
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struct node { /* ray tree node */
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int ipt[2];
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struct node *sister;
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struct node *daughter;
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};
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#define newnode() (struct node *)calloc(1, sizeof(struct node))
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int slow = 0; /* slow trace? */
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main(argc, argv) /* takes both the octree and the image */
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int argc;
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char *argv[];
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{
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int i;
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char combuf[256];
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progname = argv[0];
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for (i = 1; i < argc-3; i++)
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if (!strcmp(argv[i], "-s"))
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slow++;
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else
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break;
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if (i > argc-3) {
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fprintf(stderr, "Usage: %s [-s] [rtrace args] octree picture zbuffer\n",
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progname);
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exit(1);
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}
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picture = argv[argc-2];
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/* get the viewing parameters */
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if (viewfile(picture, &ourview, &ourres) <= 0 ||
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setview(&ourview) != NULL) {
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fprintf(stderr, "%s: cannot get view from \"%s\"\n",
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progname, picture);
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exit(1);
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}
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zbload(argv[argc-1]);
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/* open the display */
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if ((theDisplay = XOpenDisplay(NULL)) == NULL) {
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fprintf(stderr,
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"%s: cannot open display; DISPLAY variable set?\n",
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progname);
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exit(1);
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}
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/* build input command */
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sprintf(combuf, "%s %s | %s", xicom, picture, rtcom);
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for ( ; i < argc-2; i++) {
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strcat(combuf, " ");
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strcat(combuf, argv[i]);
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}
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/* start the damn thing */
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if ((pin = popen(combuf, "r")) == NULL)
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exit(1);
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sleep(20);
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/* loop on input */
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mainloop();
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/* close pipe and exit */
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pclose(pin);
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exit(0);
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}
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zbload(fname)
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char *fname;
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{
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int fd;
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zbuffer = (float *)malloc(ourres.xr*ourres.yr*sizeof(float));
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fd = open(fname,0);
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if (fd<0) exit(1);
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read(fd,zbuffer,ourres.xr*ourres.yr*sizeof(float));
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close(fd);
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}
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mainloop() /* get and process input */
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{
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static struct node *sis[MAXDEPTH];
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register struct node *newp;
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char buf[128];
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int level;
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register int i;
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level = 0;
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while (fgets(buf, sizeof(buf), pin) != NULL) {
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if (isalpha(buf[0])) {
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i = 0;
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while (isalpha(buf[++i]))
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;
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buf[i++] = '\0';
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ambval(buf, buf+i);
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continue;
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}
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if ((newp = newnode()) == NULL) {
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fprintf(stderr, "%s: memory error\n", progname);
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return;
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}
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for (i = 0; buf[i] == '\t'; i++)
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;
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if (strtoipt(newp->ipt, buf+i) < 0) {
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fprintf(stderr, "%s: bad read\n", progname);
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return;
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}
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newp->sister = sis[i];
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sis[i] = newp;
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if (i < level) {
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newp->daughter = sis[level];
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sis[level] = NULL;
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}
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level = i;
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if (i == 0) {
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setvec(sis[0]->ipt);
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tracerays(sis[0]);
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freetree(sis[0]);
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sis[0] = NULL;
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if (!slow)
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XFlush(theDisplay);
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}
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}
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}
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freetree(tp) /* free a trace tree */
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struct node *tp;
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{
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register struct node *kid;
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for (kid = tp->daughter; kid != NULL; kid = kid->sister)
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freetree(kid);
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free((void *)tp);
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}
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tracerays(tp) /* trace a ray tree */
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struct node *tp;
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{
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register struct node *kid;
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for (kid = tp->daughter; kid != NULL; kid = kid->sister) {
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vector(tp->ipt, kid->ipt);
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tracerays(kid);
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}
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}
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strtoipt(ipt, str) /* convert string x y z to image point */
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int ipt[2];
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char *str;
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{
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FVECT im_pt, pt;
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if (!sscanvec(str, pt))
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return(-1);
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if (DOT(pt,pt) <= FTINY) /* origin is really infinity */
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ipt[0] = ipt[1] = -1; /* null vector */
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else {
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viewloc(im_pt, &ourview, pt);
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loc2pix(ipt, &ourres, im_pt[0], im_pt[1]);
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}
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return(0);
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}
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#define rwind RootWindow(theDisplay,ourScreen)
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#define ourScreen DefaultScreen(theDisplay)
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GC insGC = 0;
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GC accGC = 0;
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GC useGC = 0;
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GC vecGC = 0;
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Window gwind = 0;
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int xoff=0, yoff=0;
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setvec(ipt) /* set up vector drawing for pick */
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int *ipt;
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{
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extern Window xfindwind();
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XWindowAttributes wa;
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XColor xc;
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XGCValues gcv;
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int rx, ry, wx, wy;
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Window rw, cw;
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unsigned int pm;
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/* compute pointer location */
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if (gwind == 0) {
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register char *wn;
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for (wn = picture; *wn; wn++);
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while (wn > picture && wn[-1] != '/') wn--;
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if ((gwind = xfindwind(theDisplay, rwind, wn, 4)) == 0) {
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fprintf(stderr, "%s: cannot find display window!\n",
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progname);
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exit(1);
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}
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}
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if (ipt != NULL) {
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XQueryPointer(theDisplay, gwind, &rw, &cw, &rx, &ry, &wx, &wy, &pm);
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xoff = wx - ipt[0];
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yoff = wy - ipt[1];
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}
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/* set graphics contexts */
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if (vecGC == 0) {
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XGetWindowAttributes(theDisplay, gwind, &wa);
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xc.red = 65535; xc.green = 0; xc.blue = 0;
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xc.flags = DoRed|DoGreen|DoBlue;
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if (XAllocColor(theDisplay, wa.colormap, &xc)) {
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gcv.foreground = xc.pixel;
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vecGC = XCreateGC(theDisplay,gwind,GCForeground,&gcv);
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} else {
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gcv.function = GXinvert;
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vecGC = XCreateGC(theDisplay,gwind,GCFunction,&gcv);
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}
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xc.red = 0; xc.green = 0; xc.blue = 65535;
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xc.flags = DoRed|DoGreen|DoBlue;
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XAllocColor(theDisplay, wa.colormap, &xc);
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gcv.foreground = xc.pixel;
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insGC = XCreateGC(theDisplay,gwind,GCForeground,&gcv);
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xc.red = 32000; xc.green = 0; xc.blue = 10000;
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xc.flags = DoRed|DoGreen|DoBlue;
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XAllocColor(theDisplay, wa.colormap, &xc);
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gcv.foreground = xc.pixel;
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accGC = XCreateGC(theDisplay,gwind,GCForeground,&gcv);
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xc.red = 0; xc.green = 65000; xc.blue = 0;
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xc.flags = DoRed|DoGreen|DoBlue;
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XAllocColor(theDisplay, wa.colormap, &xc);
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gcv.foreground = xc.pixel;
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useGC = XCreateGC(theDisplay,gwind,GCForeground,&gcv);
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}
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}
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vector(ip1, ip2) /* draw a vector */
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int ip1[2], ip2[2];
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{
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if (ip2[0] == -1 && ip2[1] == -1)
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return; /* null vector */
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XDrawLine(theDisplay, gwind, vecGC,
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ip1[0]+xoff, ip1[1]+yoff,
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ip2[0]+xoff, ip2[1]+yoff);
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if (slow) {
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XFlush(theDisplay);
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sleep(1);
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}
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}
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ambval(typ, str)
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char *typ, *str;
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{
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int ipt[2];
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FVECT im_pt, pt;
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if (!sscanvec(str, pt))
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return(-1);
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viewloc(im_pt, &ourview, pt);
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loc2pix(ipt, &ourres, im_pt[0], im_pt[1]);
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if (ipt[0] < 0 || ipt[0] > scanlen(&ourres) ||
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ipt[1] < 0 || ipt[1] > numscans(&ourres))
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return;
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if (im_pt[2] > zval(ipt[0],ipt[1])+.05)
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return; /* obstructed */
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setvec(NULL);
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if (!strcmp(typ, "insert"))
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XDrawRectangle(theDisplay, gwind, insGC,
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ipt[0]+xoff, ipt[1]+yoff, 2, 2);
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else if (!strcmp(typ, "check"))
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XDrawRectangle(theDisplay, gwind, accGC,
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ipt[0]+xoff, ipt[1]+yoff, 2, 2);
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else if (!strcmp(typ, "use"))
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XDrawRectangle(theDisplay, gwind, useGC,
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ipt[0]+xoff, ipt[1]+yoff, 2, 2);
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XFlush(theDisplay);
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}
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