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/* Copyright (c) 1998 Silicon Graphics, Inc. */ |
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|
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#ifndef lint |
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static char SCCSid[] = "$SunId$ SGI"; |
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#endif |
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|
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/* |
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* Tone map SGILOG TIFF or Radiance picture and output 24-bit RGB TIFF |
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*/ |
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|
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#undef NOPROTO |
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#define NOPROTO 1 |
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|
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#include <stdio.h> |
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#include <math.h> |
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#include "tiffio.h" |
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#include "color.h" |
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#include "tonemap.h" |
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#include "resolu.h" |
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|
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|
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TIFF *tifout; /* TIFF output */ |
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int flags = TM_F_CAMERA; /* tone-mapping flags */ |
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RGBPRIMP rgbp = stdprims; /* display primaries */ |
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RGBPRIMS myprims; /* overriding display primaries */ |
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double ldmax = 100.; /* maximum display luminance */ |
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double lddyn = 32.; /* display dynamic range */ |
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double gamv = 2.2; /* display gamma value */ |
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|
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short ortab[8] = { /* orientation conversion table */ |
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YMAJOR|YDECR, |
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YMAJOR|YDECR|XDECR, |
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YMAJOR|XDECR, |
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YMAJOR, |
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YDECR, |
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XDECR|YDECR, |
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XDECR, |
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0 |
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}; |
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|
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extern FILE *openpicture(); |
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|
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|
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main(argc, argv) |
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int argc; |
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char *argv[]; |
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{ |
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FILE *fin = NULL; |
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TIFF *tin = NULL; |
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int i; |
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|
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for (i = 1; i < argc && argv[i][0] == '-'; i++) |
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switch (argv[i][1]) { |
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case 'h': /* human observer settings */ |
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flags = TM_F_HUMAN; |
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break; |
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case 's': /* toggle human contrast */ |
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flags ^= TM_F_HCONTR; |
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break; |
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case 'c': /* toggle mesopic sens. */ |
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flags ^= TM_F_MESOPIC; |
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break; |
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case 'l': /* toggle linear mapping */ |
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flags ^= TM_F_LINEAR; |
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break; |
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case 'b': /* toggle greyscale output */ |
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flags ^= TM_F_BW; |
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break; |
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case 'g': /* set display gamma */ |
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if (argc-i < 2) goto userr; |
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gamv = atof(argv[++i]); |
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break; |
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case 'u': /* set display maximum */ |
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if (argc-i < 2) goto userr; |
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ldmax = atof(argv[++i]); |
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break; |
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case 'd': /* set display dynamic range */ |
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if (argc-i < 2) goto userr; |
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lddyn = atof(argv[++i]); |
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break; |
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case 'p': /* set display primaries */ |
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if (argc-i < 9) goto userr; |
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myprims[RED][CIEX] = atof(argv[++i]); |
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myprims[RED][CIEY] = atof(argv[++i]); |
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myprims[GRN][CIEX] = atof(argv[++i]); |
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myprims[GRN][CIEY] = atof(argv[++i]); |
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myprims[BLU][CIEX] = atof(argv[++i]); |
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myprims[BLU][CIEY] = atof(argv[++i]); |
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myprims[WHT][CIEX] = atof(argv[++i]); |
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myprims[WHT][CIEY] = atof(argv[++i]); |
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rgbp = myprims; |
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break; |
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default: |
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goto userr; |
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} |
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if (argc-i < 2) goto userr; |
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if ((fin = openpicture(argv[i])) == NULL && |
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(tin = TIFFOpen(argv[i], "r")) == NULL) { |
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fprintf(stderr, "%s: cannot open or interpret file \"%s\"\n", |
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argv[0], argv[i]); |
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exit(1); |
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} |
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if ((tifout = TIFFOpen(argv[i+1], "w")) == NULL) { |
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fprintf(stderr, "%s: cannot open output TIFF \"%s\"\n", |
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argv[0], argv[i+1]); |
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exit(1); |
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} |
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if (fin != NULL) { |
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tmap_picture(argv[i], fin); |
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fclose(fin); |
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} else { |
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tmap_tiff(argv[i], tin); |
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TIFFClose(tin); |
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} |
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TIFFClose(tifout); |
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exit(0); |
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userr: |
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fprintf(stderr, |
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"Usage: %s [-h][-s][-c][-l][-b][-g gv][-d ld][-u lm][-p xr yr xg yg xb yb xw yw] input.{tif|pic} output.tif\n", |
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argv[0]); |
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exit(1); |
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} |
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|
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|
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FILE * |
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openpicture(fname) /* open/check Radiance picture file */ |
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char *fname; |
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{ |
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FILE *fp; |
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char inpfmt[32]; |
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int xsiz, ysiz; |
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register char *cp; |
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/* check filename suffix */ |
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if (fname == NULL) return(NULL); |
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for (cp = fname; *cp; cp++) |
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; |
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while (cp > fname && cp[-1] != '.') |
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if (*--cp == '/') { |
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cp = fname; |
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break; |
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} |
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if (cp > fname && !strncmp(cp, "tif", 3)) |
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return(NULL); /* assume it's a TIFF */ |
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/* else try opening it */ |
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if ((fp = fopen(fname, "r")) == NULL) |
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return(NULL); |
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/* check format */ |
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strcpy(inpfmt, PICFMT); |
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if (checkheader(fp, inpfmt, NULL) < 0 || |
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fgetresolu(&xsiz, &ysiz, fp) < 0) { |
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fclose(fp); /* failed test -- close file */ |
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return(NULL); |
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} |
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rewind(fp); /* passed test -- rewind file */ |
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return(fp); |
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} |
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|
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|
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getpixrat(s, pr) /* get pixel aspect ratio */ |
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char *s; |
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double *pr; |
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{ |
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if (isaspect(s)) |
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*pr *= aspectval(s); |
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} |
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|
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|
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tmap_picture(fname, fp) /* tone map Radiance picture */ |
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char *fname; |
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FILE *fp; |
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{ |
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double pixrat; |
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int ord; |
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uint16 orient; |
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int xsiz, ysiz; |
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BYTE *pix; |
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/* read and tone map picture */ |
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if (tmMapPicture(&pix, &xsiz, &ysiz, flags, |
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rgbp, gamv, lddyn, ldmax, fname, fp) != TM_E_OK) |
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exit(1); |
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/* get relevant header info. */ |
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rewind(fp); |
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pixrat = 1.; |
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getheader(fp, getpixrat, &pixrat); |
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if ((ord = fgetresolu(&xsiz, &ysiz, fp)) < 0) |
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orient = 0; |
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else |
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for (orient = 8; --orient; ) |
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if (ortab[orient] == ord) |
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break; |
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orient++; |
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/* put out our image */ |
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putimage(orient, (uint32)xsiz, (uint32)ysiz, 72., 72./pixrat, 2, pix); |
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/* free data and we're done */ |
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free((char *)pix); |
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} |
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|
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|
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tmap_tiff(fname, tp) /* tone map SGILOG TIFF */ |
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char *fname; |
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TIFF *tp; |
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{ |
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float xres, yres; |
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uint16 orient, resunit, phot; |
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int xsiz, ysiz; |
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BYTE *pix; |
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/* check to make sure it's SGILOG */ |
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TIFFGetFieldDefaulted(tp, TIFFTAG_PHOTOMETRIC, &phot); |
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if (phot != PHOTOMETRIC_LOGLUV && phot != PHOTOMETRIC_LOGL) { |
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fprintf(stderr, "%s: TIFF must be in SGILOG format\n", fname); |
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exit(1); |
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} |
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if (phot == PHOTOMETRIC_LOGL) |
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flags |= TM_F_BW; |
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/* read and tone map TIFF */ |
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if (tmMapTIFF(&pix, &xsiz, &ysiz, flags, |
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rgbp, gamv, lddyn, ldmax, fname, tp) != TM_E_OK) |
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exit(1); |
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/* get relevant tags */ |
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TIFFGetFieldDefaulted(tp, TIFFTAG_RESOLUTIONUNIT, &resunit); |
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TIFFGetFieldDefaulted(tp, TIFFTAG_XRESOLUTION, &xres); |
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TIFFGetFieldDefaulted(tp, TIFFTAG_YRESOLUTION, &yres); |
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TIFFGetFieldDefaulted(tp, TIFFTAG_ORIENTATION, &orient); |
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/* put out our image */ |
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putimage(orient, (uint32)xsiz, (uint32)ysiz, xres, yres, resunit, pix); |
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/* free data and we're done */ |
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free((char *)pix); |
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} |
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|
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|
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putimage(or, xs, ys, xr, yr, ru, pd) /* write out our image */ |
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uint16 or; |
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uint32 xs, ys; |
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float xr, yr; |
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uint16 ru; |
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BYTE *pd; |
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{ |
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register int y; |
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uint32 rowsperstrip; |
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|
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TIFFSetField(tifout, TIFFTAG_COMPRESSION, COMPRESSION_NONE); |
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if (flags & TM_F_BW) { |
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TIFFSetField(tifout, TIFFTAG_PHOTOMETRIC, |
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PHOTOMETRIC_MINISBLACK); |
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TIFFSetField(tifout, TIFFTAG_SAMPLESPERPIXEL, 1); |
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} else { |
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TIFFSetField(tifout, TIFFTAG_PHOTOMETRIC, PHOTOMETRIC_RGB); |
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TIFFSetField(tifout, TIFFTAG_SAMPLESPERPIXEL, 3); |
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} |
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if (rgbp != stdprims) { |
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TIFFSetField(tifout, TIFFTAG_PRIMARYCHROMATICITIES, |
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(float *)rgbp); |
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TIFFSetField(tifout, TIFFTAG_WHITEPOINT, (float *)rgbp[WHT]); |
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} |
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TIFFSetField(tifout, TIFFTAG_BITSPERSAMPLE, 8); |
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TIFFSetField(tifout, TIFFTAG_IMAGEWIDTH, xs); |
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TIFFSetField(tifout, TIFFTAG_IMAGELENGTH, ys); |
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TIFFSetField(tifout, TIFFTAG_RESOLUTIONUNIT, ru); |
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TIFFSetField(tifout, TIFFTAG_XRESOLUTION, xr); |
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TIFFSetField(tifout, TIFFTAG_YRESOLUTION, yr); |
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TIFFSetField(tifout, TIFFTAG_PLANARCONFIG, PLANARCONFIG_CONTIG); |
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TIFFSetField(tifout, TIFFTAG_ORIENTATION, or); |
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/* compute good strip size */ |
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rowsperstrip = 8192/TIFFScanlineSize(tifout); |
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if (rowsperstrip < 1) rowsperstrip = 1; |
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TIFFSetField(tifout, TIFFTAG_ROWSPERSTRIP, rowsperstrip); |
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/* write out scanlines */ |
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if (flags & TM_F_BW) { |
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for (y = 0; y < ys; y++) |
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if (TIFFWriteScanline(tifout, pd + y*xs, y, 0) < 0) |
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goto writerr; |
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} else { |
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for (y = 0; y < ys; y++) |
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if (TIFFWriteScanline(tifout, pd + y*3*xs, y, 0) < 0) |
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goto writerr; |
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} |
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return; /* all done! */ |
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writerr: |
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fputs("Error writing TIFF output\n", stderr); |
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exit(2); |
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} |
