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/* Copyright (c) 1991 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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#include "color.h" |
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#include "resolu.h" |
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#ifndef BSD |
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#define vfork fork |
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#endif |
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VIEW theirview = STDVIEW; /* input view */ |
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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? */ |
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RESOLU tresolu; /* input resolution */ |
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double theirexp; /* input picture exposure */ |
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double theirs2ours[4][4]; /* transformation matrix */ |
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int hasmatrix = 0; /* has transformation matrix */ |
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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); |
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fputformat(COLRFMT, 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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static char *altname[] = {VIEWSTR,"rpict","rview","pinterp",NULL}; |
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register char **an; |
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char fmt[32]; |
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if (isformat(s)) { |
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formatval(fmt, s); |
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wrongformat = strcmp(fmt, COLRFMT); |
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return; |
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} |
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putc('\t', stdout); |
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fputs(s, stdout); |
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theirexp = 1.0; |
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gotview = 0; |
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printf("%s:\n", pfile); |
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getheader(pfp, headline); |
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if (!gotview || fgetresolu(&thresolu, &tvresolu, pfp) |
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!= (YMAJOR|YDECR)) { |
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fprintf(stderr, "%s: picture view error\n", pfile); |
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getheader(pfp, headline, NULL); |
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if (wrongformat || !gotview || !fgetsresolu(&tresolu, pfp)) { |
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fprintf(stderr, "%s: picture format error\n", pfile); |
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exit(1); |
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} |
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if (ourexp <= 0) |
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/* compute transformation */ |
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hasmatrix = pixform(theirs2ours, &theirview, &ourview); |
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/* allocate scanlines */ |
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scanin = (COLR *)malloc(thresolu*sizeof(COLR)); |
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zin = (float *)malloc(thresolu*sizeof(float)); |
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plast = (struct position *)calloc(thresolu, sizeof(struct position)); |
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scanin = (COLR *)malloc(scanlen(&tresolu)*sizeof(COLR)); |
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zin = (float *)malloc(scanlen(&tresolu)*sizeof(float)); |
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plast = (struct position *)calloc(scanlen(&tresolu), |
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sizeof(struct position)); |
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if (scanin == NULL || zin == NULL || plast == NULL) |
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syserror(); |
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/* get z specification or file */ |
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perror(zspec); |
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exit(1); |
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} |
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for (x = 0; x < thresolu; x++) |
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for (x = scanlen(&tresolu); x-- > 0; ) |
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zin[x] = zvalue; |
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} |
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/* load image */ |
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for (y = tvresolu-1; y >= 0; y--) { |
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if (freadcolrs(scanin, thresolu, pfp) < 0) { |
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for (y = 0; y < numscans(&tresolu); y++) { |
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if (freadcolrs(scanin, scanlen(&tresolu), pfp) < 0) { |
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fprintf(stderr, "%s: read error\n", pfile); |
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exit(1); |
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} |
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if (zfd != -1 && read(zfd,(char *)zin,thresolu*sizeof(float)) |
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< thresolu*sizeof(float)) { |
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if (zfd != -1 && read(zfd,(char *)zin, |
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scanlen(&tresolu)*sizeof(float)) |
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< scanlen(&tresolu)*sizeof(float)) { |
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fprintf(stderr, "%s: read error\n", zspec); |
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exit(1); |
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} |
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register int x; |
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lastx.z = 0; |
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for (x = thresolu-1; x >= 0; x--) { |
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pos[0] = (x+.5)/thresolu; |
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pos[1] = (y+.5)/tvresolu; |
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for (x = scanlen(&tresolu); x-- > 0; ) { |
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pix2loc(pos, &tresolu, x, y); |
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pos[2] = zline[x]; |
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if (movepixel(pos) < 0) { |
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lasty[x].z = lastx.z = 0; /* mark invalid */ |
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{ |
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FVECT pt, direc; |
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if (pos[2] <= 0) /* empty pixel */ |
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return(-1); |
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if (hasmatrix) { |
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pos[0] += theirview.hoff - .5; |
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pos[1] += theirview.voff - .5; |
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pt[0] += direc[0]*pos[2]; |
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pt[1] += direc[1]*pos[2]; |
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pt[2] += direc[2]*pos[2]; |
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viewpixel(&pos[0], &pos[1], &pos[2], &ourview, pt); |
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viewloc(pos, &ourview, pt); |
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if (pos[2] <= 0) |
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return(-1); |
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return(0); |
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{ |
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int y; |
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fputresolu(YMAJOR|YDECR, hresolu, vresolu, stdout); |
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fprtresolu(hresolu, vresolu, stdout); |
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for (y = vresolu-1; y >= 0; y--) |
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if (fwritecolrs(pscan(y), hresolu, stdout) < 0) |
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syserror(); |
