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/* Copyright (c) 1992 Regents of the University of California */ |
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/* Copyright (c) 1996 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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* pfilt.c - program to post-process picture file. |
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* |
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* 9/26/85 |
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* 6/23/93 Added additional buffers for value spreading |
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*/ |
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#include "standard.h" |
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#include "color.h" |
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#include "view.h" |
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|
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#include "resolu.h" |
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#include "paths.h" |
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#define FEQ(a,b) ((a) >= .98*(b) && (a) <= 1.02*(b)) |
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#define CHECKRAD 1.5 /* radius to check for filtering */ |
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double CHECKRAD = 1.5; /* radius to check for filtering */ |
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|
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#define THRESHRAD 5.0 /* maximum sample spread in output */ |
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|
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COLOR exposure = WHTCOLOR; /* exposure for the frame */ |
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|
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double rad = 0.0; /* output pixel radius for filtering */ |
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|
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double thresh = 0.0; /* maximum contribution for subpixel */ |
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|
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int nrows = 0; /* number of rows for output */ |
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int ncols = 0; /* number of columns for output */ |
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int avghot = 0; /* true means average in bright spots */ |
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double hotlvl = 1000.0; /* level considered "hot" */ |
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double hotlvl = 100.0; /* level considered "hot" */ |
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int npts = 0; /* (half) number of points for stars */ |
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char *tfname = NULL; |
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char template[] = TEMPLATE; |
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|
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char *lampdat = "lamp.tab"; /* lamp data file */ |
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int order; /* scanline ordering of input */ |
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int wrongformat = 0; |
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int xrad; /* x window size */ |
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int yrad; /* y window size */ |
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VIEW ourview = STDVIEW; |
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int gotview = 0; |
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int wrapfilt = 0; /* wrap filter horizontally? */ |
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|
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int xrad; /* x search radius */ |
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int yrad; /* y search radius */ |
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int xbrad; /* x box size */ |
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int ybrad; /* y box size */ |
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|
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int barsize; /* size of input scan bar */ |
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COLOR **scanin; /* input scan bar */ |
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COLOR *scanout; /* output scan line */ |
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COLOR **scoutbar; /* output scan bar (if thresh > 0) */ |
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float **greybar; /* grey-averaged input values */ |
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int obarsize = 0; /* size of output scan bar */ |
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int orad = 0; /* output window radius */ |
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|
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char *progname; |
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if (signal(SIGINT, quit) == SIG_IGN) |
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signal(SIGINT, SIG_IGN); |
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if (signal(SIGHUP, quit) == SIG_IGN) |
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signal(SIGINT, SIG_IGN); |
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signal(SIGHUP, SIG_IGN); |
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signal(SIGTERM, quit); |
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signal(SIGPIPE, quit); |
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#ifdef SIGXCPU |
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case 'r': |
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rad = atof(argv[++i]); |
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break; |
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case 'm': |
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thresh = atof(argv[++i]); |
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if (rad <= FTINY) |
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rad = 1.0; |
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break; |
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case 'b': |
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rad = 0.0; |
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rad = thresh = 0.0; |
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break; |
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default:; |
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badopt: |
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fprintf(stderr, "%s: unknown lamp type\n", lamptype); |
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quit(1); |
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} |
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for (i = 0; i < 3; i++) |
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if (lampcolor[i] > 1e-4) |
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colval(exposure,i) /= lampcolor[i]; |
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for (j = 0; j < 3; j++) |
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if (lampcolor[j] > 1e-4) |
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colval(exposure,j) /= lampcolor[j]; |
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freelamps(); |
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} |
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/* open input file */ |
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if (singlepass) |
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fin = stdin; |
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else { |
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tfname = mktemp(TEMPLATE); |
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tfname = mktemp(template); |
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if ((fin = fopen(tfname, "w+")) == NULL) { |
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fprintf(stderr, "%s: can't create ", progname); |
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fprintf(stderr, "temp file \"%s\"\n", tfname); |
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} |
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if (!(order & YMAJOR)) |
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inpaspect = 1.0/inpaspect; |
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/* wrap around for cylindrical view? */ |
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wrapfilt = gotview && ourview.type == VT_CYL && |
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ourview.horiz >= 360.-FTINY && order & YMAJOR; |
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/* compute output resolution */ |
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if (ncols <= 0) |
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ncols = x_c*xres + .5; |
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} |
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|
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double |
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rgb_bright(clr) |
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COLOR clr; |
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{ |
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return(bright(clr)); |
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} |
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|
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|
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double |
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xyz_bright(clr) |
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COLOR clr; |
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{ |
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return(clr[CIEY]); |
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} |
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|
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|
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double (*ourbright)() = rgb_bright; |
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|
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|
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headline(s) /* process line from header */ |
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char *s; |
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{ |
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fputs(s, stdout); /* copy to output */ |
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if (isaspect(s)) /* get aspect ratio */ |
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inpaspect *= aspectval(s); |
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else if (isformat(s)) { |
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formatval(fmt, s); |
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wrongformat = strcmp(fmt, COLRFMT); |
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} |
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else if (isexpos(s)) /* get exposure */ |
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hotlvl *= exposval(s); |
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else if (formatval(fmt, s)) { /* get format */ |
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wrongformat = 0; |
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if (!strcmp(COLRFMT, fmt)) |
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ourbright = rgb_bright; |
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else if (!strcmp(CIEFMT, fmt)) |
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ourbright = xyz_bright; |
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else |
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wrongformat = !globmatch(PICFMT, fmt); |
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} else if (isview(s) && sscanview(&ourview, s) > 0) |
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gotview++; |
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} |
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if (freadscan(scanin[yread%barsize], |
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xres, in) < 0) { |
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fprintf(stderr, |
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"%s: bad read (y=%d)\n", |
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"%s: truncated input (y=%d)\n", |
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progname, yres-1-yread); |
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quit(1); |
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} |
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} |
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yread++; |
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} |
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if (obarsize > 0) |
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scan2sync(r); |
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for (c = 0; c < ncols; c++) { |
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xcent = (long)c*xres/ncols; |
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if (rad <= 0.0) |
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dobox(scanout[c], xcent, ycent, c, r); |
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else |
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if (thresh > FTINY) |
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dothresh(xcent, ycent, c, r); |
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else if (rad > FTINY) |
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dogauss(scanout[c], xcent, ycent, c, r); |
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else |
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dobox(scanout[c], xcent, ycent, c, r); |
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} |
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if (fwritescan(scanout, ncols, stdout) < 0) { |
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if (scanout != NULL && fwritescan(scanout, ncols, stdout) < 0) { |
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fprintf(stderr, "%s: write error in pass2\n", progname); |
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quit(1); |
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} |
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} |
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/* skip leftovers */ |
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/* skip leftover input */ |
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while (yread < yres) { |
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if (freadscan(scanin[0], xres, in) < 0) |
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break; |
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yread++; |
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} |
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scan2flush(); /* flush output */ |
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} |
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double d; |
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register int i; |
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|
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if (rad <= 0.0) { |
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xrad = xres/ncols/2 + 1; |
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yrad = yres/nrows/2 + 1; |
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} else { |
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xbrad = xres/ncols/2 + 1; |
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ybrad = yres/nrows/2 + 1; |
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if (rad > FTINY) { |
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if (nrows >= yres && ncols >= xres) |
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rad *= (y_r + x_c)/2.0; |
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|
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xrad = CHECKRAD*rad/x_c + 1; |
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yrad = CHECKRAD*rad/y_r + 1; |
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|
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if (thresh > FTINY) { |
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orad = CHECKRAD*THRESHRAD*rad + 1; |
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xrad = orad/x_c + xbrad; |
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yrad = orad/y_r + ybrad; |
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obarsize = 2*orad + 1; |
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} else { |
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xrad = CHECKRAD*rad/x_c + 1; |
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yrad = CHECKRAD*rad/y_r + 1; |
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} |
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initmask(); /* initialize filter table */ |
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} else { |
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xrad = xbrad; |
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yrad = ybrad; |
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} |
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barsize = 2*yrad + 1; |
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scanin = (COLOR **)malloc(barsize*sizeof(COLOR *)); |
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if (scanin == NULL) |
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goto memerr; |
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for (i = 0; i < barsize; i++) { |
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scanin[i] = (COLOR *)malloc(xres*sizeof(COLOR)); |
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if (scanin[i] == NULL) { |
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fprintf(stderr, "%s: out of memory\n", progname); |
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quit(1); |
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if (scanin[i] == NULL) |
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goto memerr; |
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} |
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if (obarsize > 0) { |
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scoutbar = (COLOR **)malloc(obarsize*sizeof(COLOR *)); |
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greybar = (float **)malloc(obarsize*sizeof(float *)); |
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if (scoutbar == NULL | greybar == NULL) |
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goto memerr; |
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for (i = 0; i < obarsize; i++) { |
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scoutbar[i] = (COLOR *)malloc(ncols*sizeof(COLOR)); |
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greybar[i] = (float *)malloc(ncols*sizeof(float)); |
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if (scoutbar[i] == NULL | greybar[i] == NULL) |
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goto memerr; |
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} |
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} else { |
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scanout = (COLOR *)malloc(ncols*sizeof(COLOR)); |
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if (scanout == NULL) |
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goto memerr; |
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} |
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scanout = (COLOR *)malloc(ncols*sizeof(COLOR)); |
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if (scanout == NULL) { |
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fprintf(stderr, "%s: out of memory\n", progname); |
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quit(1); |
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} |
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/* record pixel aspect ratio */ |
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if (!correctaspect) { |
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d = order & YMAJOR ? x_c/y_r : y_r/x_c ; |
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fputaspect(d, stdout); |
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} |
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/* record exposure */ |
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d = bright(exposure); |
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d = (*ourbright)(exposure); |
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if (!FEQ(d,1.0)) |
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fputexpos(d, stdout); |
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/* record color correction */ |
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printf("\n"); |
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/* write out resolution */ |
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fputresolu(order, ncols, nrows, stdout); |
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return; |
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memerr: |
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fprintf(stderr, "%s: out of memory\n", progname); |
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quit(1); |
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} |
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|
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|
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scan2sync(r) /* synchronize grey averages and output scan */ |
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int r; |
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{ |
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static int nextrow = 0; |
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COLOR ctmp; |
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int ybot; |
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register int c; |
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/* average input scanlines */ |
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while (nextrow <= r+orad && nextrow < nrows) { |
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ybot = (long)nextrow*yres/nrows; |
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for (c = 0; c < ncols; c++) { |
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dobox(ctmp, (int)((long)c*xres/ncols),ybot, c,nextrow); |
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greybar[nextrow%obarsize][c] = (*ourbright)(ctmp); |
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} |
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/* and zero output scanline */ |
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bzero((char *)scoutbar[nextrow%obarsize], ncols*sizeof(COLOR)); |
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nextrow++; |
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} |
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/* point to top scanline for output */ |
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if (r-orad >= 0) |
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scanout = scoutbar[(r-orad)%obarsize]; |
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else |
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scanout = NULL; |
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} |
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|
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|
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scan2flush() /* flush output buffer */ |
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{ |
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register int r; |
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|
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for (r = nrows-orad; r < nrows; r++) |
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if (fwritescan(scoutbar[r%obarsize], ncols, stdout) < 0) |
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break; |
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if (fflush(stdout) < 0) { |
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fprintf(stderr, "%s: write error at end of pass2\n", progname); |
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exit(1); |
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} |
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} |
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