| 1 |
/* Copyright (c) 1998 Silicon Graphics, Inc. */ |
| 2 |
|
| 3 |
#ifndef lint |
| 4 |
static char SCCSid[] = "$SunId$ SGI"; |
| 5 |
#endif |
| 6 |
|
| 7 |
/* |
| 8 |
* Tone map SGILOG TIFF or Radiance picture and output 24-bit RGB TIFF |
| 9 |
*/ |
| 10 |
|
| 11 |
#undef NOPROTO |
| 12 |
#define NOPROTO 1 |
| 13 |
|
| 14 |
#include <stdio.h> |
| 15 |
#include <math.h> |
| 16 |
#include "tiffio.h" |
| 17 |
#include "color.h" |
| 18 |
#include "tonemap.h" |
| 19 |
#include "resolu.h" |
| 20 |
|
| 21 |
|
| 22 |
TIFF *tifout; /* TIFF output */ |
| 23 |
int flags = TM_F_CAMERA; /* tone-mapping flags */ |
| 24 |
RGBPRIMP rgbp = stdprims; /* display primaries */ |
| 25 |
RGBPRIMS myprims; /* overriding display primaries */ |
| 26 |
double ldmax = 100.; /* maximum display luminance */ |
| 27 |
double lddyn = 32.; /* display dynamic range */ |
| 28 |
double gamv = 2.2; /* display gamma value */ |
| 29 |
|
| 30 |
short ortab[8] = { /* orientation conversion table */ |
| 31 |
YMAJOR|YDECR, |
| 32 |
YMAJOR|YDECR|XDECR, |
| 33 |
YMAJOR|XDECR, |
| 34 |
YMAJOR, |
| 35 |
YDECR, |
| 36 |
XDECR|YDECR, |
| 37 |
XDECR, |
| 38 |
0 |
| 39 |
}; |
| 40 |
|
| 41 |
typedef struct { |
| 42 |
FILE *fp; /* file pointer */ |
| 43 |
char fmt[32]; /* picture format */ |
| 44 |
double pa; /* pixel aspect ratio */ |
| 45 |
RESOLU rs; /* picture resolution */ |
| 46 |
} PICTURE; |
| 47 |
|
| 48 |
extern PICTURE *openpicture(); |
| 49 |
|
| 50 |
#define closepicture(p) (fclose((p)->fp),free((char *)(p))) |
| 51 |
|
| 52 |
|
| 53 |
main(argc, argv) |
| 54 |
int argc; |
| 55 |
char *argv[]; |
| 56 |
{ |
| 57 |
PICTURE *pin = NULL; |
| 58 |
TIFF *tin = NULL; |
| 59 |
int i, rval; |
| 60 |
|
| 61 |
for (i = 1; i < argc && argv[i][0] == '-'; i++) |
| 62 |
switch (argv[i][1]) { |
| 63 |
case 'h': /* human observer settings */ |
| 64 |
flags = TM_F_HUMAN; |
| 65 |
break; |
| 66 |
case 's': /* toggle human contrast */ |
| 67 |
flags ^= TM_F_HCONTR; |
| 68 |
break; |
| 69 |
case 'c': /* toggle mesopic sens. */ |
| 70 |
flags ^= TM_F_MESOPIC; |
| 71 |
break; |
| 72 |
case 'l': /* toggle linear mapping */ |
| 73 |
flags ^= TM_F_LINEAR; |
| 74 |
break; |
| 75 |
case 'b': /* toggle greyscale output */ |
| 76 |
flags ^= TM_F_BW; |
| 77 |
break; |
| 78 |
case 'g': /* set display gamma */ |
| 79 |
if (argc-i < 2) goto userr; |
| 80 |
gamv = atof(argv[++i]); |
| 81 |
break; |
| 82 |
case 'u': /* set display maximum */ |
| 83 |
if (argc-i < 2) goto userr; |
| 84 |
ldmax = atof(argv[++i]); |
| 85 |
break; |
| 86 |
case 'd': /* set display dynamic range */ |
| 87 |
if (argc-i < 2) goto userr; |
| 88 |
lddyn = atof(argv[++i]); |
| 89 |
break; |
| 90 |
case 'p': /* set display primaries */ |
| 91 |
if (argc-i < 9) goto userr; |
| 92 |
myprims[RED][CIEX] = atof(argv[++i]); |
| 93 |
myprims[RED][CIEY] = atof(argv[++i]); |
| 94 |
myprims[GRN][CIEX] = atof(argv[++i]); |
| 95 |
myprims[GRN][CIEY] = atof(argv[++i]); |
| 96 |
myprims[BLU][CIEX] = atof(argv[++i]); |
| 97 |
myprims[BLU][CIEY] = atof(argv[++i]); |
| 98 |
myprims[WHT][CIEX] = atof(argv[++i]); |
| 99 |
myprims[WHT][CIEY] = atof(argv[++i]); |
| 100 |
rgbp = myprims; |
| 101 |
break; |
| 102 |
default: |
| 103 |
goto userr; |
| 104 |
} |
| 105 |
if (argc-i < 2) goto userr; |
| 106 |
if ((pin = openpicture(argv[i])) == NULL && |
| 107 |
(tin = TIFFOpen(argv[i], "r")) == NULL) { |
| 108 |
fprintf(stderr, "%s: cannot open or interpret file \"%s\"\n", |
| 109 |
argv[0], argv[i]); |
| 110 |
exit(1); |
| 111 |
} |
| 112 |
if ((tifout = TIFFOpen(argv[i+1], "w")) == NULL) { |
| 113 |
fprintf(stderr, "%s: cannot open output TIFF \"%s\"\n", |
| 114 |
argv[0], argv[i+1]); |
| 115 |
exit(1); |
| 116 |
} |
| 117 |
if (pin != NULL) { |
| 118 |
rval = tmap_picture(argv[i], pin); |
| 119 |
closepicture(pin); |
| 120 |
} else { |
| 121 |
rval = tmap_tiff(argv[i], tin); |
| 122 |
TIFFClose(tin); |
| 123 |
} |
| 124 |
TIFFClose(tifout); |
| 125 |
exit(rval==0 ? 0 : 1); |
| 126 |
userr: |
| 127 |
fprintf(stderr, |
| 128 |
"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", |
| 129 |
argv[0]); |
| 130 |
exit(1); |
| 131 |
} |
| 132 |
|
| 133 |
|
| 134 |
int |
| 135 |
headline(s, pp) /* process line from header */ |
| 136 |
char *s; |
| 137 |
register PICTURE *pp; |
| 138 |
{ |
| 139 |
register char *cp; |
| 140 |
|
| 141 |
for (cp = s; *cp; cp++) |
| 142 |
if (*cp & 0x80) |
| 143 |
return(-1); /* non-ascii in header */ |
| 144 |
if (isaspect(s)) |
| 145 |
pp->pa *= aspectval(s); |
| 146 |
else |
| 147 |
formatval(pp->fmt, s); |
| 148 |
return(0); |
| 149 |
} |
| 150 |
|
| 151 |
|
| 152 |
PICTURE * |
| 153 |
openpicture(fname) /* open/check Radiance picture file */ |
| 154 |
char *fname; |
| 155 |
{ |
| 156 |
FILE *fp; |
| 157 |
register PICTURE *pp; |
| 158 |
register char *cp; |
| 159 |
/* check filename suffix */ |
| 160 |
if (fname == NULL) return(NULL); |
| 161 |
for (cp = fname; *cp; cp++) |
| 162 |
; |
| 163 |
while (cp > fname && cp[-1] != '.') |
| 164 |
if (*--cp == '/') { |
| 165 |
cp = fname; |
| 166 |
break; |
| 167 |
} |
| 168 |
if (cp > fname && !strncmp(cp, "tif", 3)) |
| 169 |
return(NULL); /* assume it's a TIFF */ |
| 170 |
/* else try opening it */ |
| 171 |
if ((fp = fopen(fname, "r")) == NULL) |
| 172 |
return(NULL); |
| 173 |
/* allocate struct */ |
| 174 |
if ((pp = (PICTURE *)malloc(sizeof(PICTURE))) == NULL) |
| 175 |
return(NULL); /* serious error -- should exit? */ |
| 176 |
pp->fp = fp; pp->fmt[0] = '\0'; pp->pa = 1.; |
| 177 |
/* load header */ |
| 178 |
if (getheader(fp, headline, pp) < 0) { |
| 179 |
closepicture(pp); |
| 180 |
return(NULL); |
| 181 |
} |
| 182 |
if (!pp->fmt[0]) /* assume RGBE if unspecified */ |
| 183 |
strcpy(pp->fmt, COLRFMT); |
| 184 |
if (!globmatch(PICFMT, pp->fmt) || !fgetsresolu(&pp->rs, fp)) { |
| 185 |
closepicture(pp); /* failed test -- close file */ |
| 186 |
return(NULL); |
| 187 |
} |
| 188 |
rewind(fp); /* passed test -- rewind file */ |
| 189 |
return(pp); |
| 190 |
} |
| 191 |
|
| 192 |
|
| 193 |
int |
| 194 |
tmap_picture(fname, pp) /* tone map Radiance picture */ |
| 195 |
char *fname; |
| 196 |
register PICTURE *pp; |
| 197 |
{ |
| 198 |
uint16 orient; |
| 199 |
int xsiz, ysiz; |
| 200 |
BYTE *pix; |
| 201 |
/* read and tone map picture */ |
| 202 |
if (tmMapPicture(&pix, &xsiz, &ysiz, flags, |
| 203 |
rgbp, gamv, lddyn, ldmax, fname, pp->fp) != TM_E_OK) |
| 204 |
return(-1); |
| 205 |
/* figure out TIFF orientation */ |
| 206 |
for (orient = 8; --orient; ) |
| 207 |
if (ortab[orient] == pp->rs.or) |
| 208 |
break; |
| 209 |
orient++; |
| 210 |
/* put out our image */ |
| 211 |
if (putimage(orient, (uint32)xsiz, (uint32)ysiz, |
| 212 |
72., 72./pp->pa, 2, pix) != 0) |
| 213 |
return(-1); |
| 214 |
/* free data and we're done */ |
| 215 |
free((char *)pix); |
| 216 |
return(0); |
| 217 |
} |
| 218 |
|
| 219 |
|
| 220 |
tmap_tiff(fname, tp) /* tone map SGILOG TIFF */ |
| 221 |
char *fname; |
| 222 |
TIFF *tp; |
| 223 |
{ |
| 224 |
float xres, yres; |
| 225 |
uint16 orient, resunit, phot; |
| 226 |
int xsiz, ysiz; |
| 227 |
BYTE *pix; |
| 228 |
/* check to make sure it's SGILOG */ |
| 229 |
TIFFGetFieldDefaulted(tp, TIFFTAG_PHOTOMETRIC, &phot); |
| 230 |
if (phot != PHOTOMETRIC_LOGLUV && phot != PHOTOMETRIC_LOGL) { |
| 231 |
if (!(flags & TM_F_NOSTDERR)) { |
| 232 |
fputs(fname, stderr); |
| 233 |
fputs(": TIFF must be in SGILOG format\n", stderr); |
| 234 |
} |
| 235 |
return(-1); |
| 236 |
} |
| 237 |
if (phot == PHOTOMETRIC_LOGL) |
| 238 |
flags |= TM_F_BW; |
| 239 |
/* read and tone map TIFF */ |
| 240 |
if (tmMapTIFF(&pix, &xsiz, &ysiz, flags, |
| 241 |
rgbp, gamv, lddyn, ldmax, fname, tp) != TM_E_OK) |
| 242 |
return(-1); |
| 243 |
/* get relevant tags */ |
| 244 |
TIFFGetFieldDefaulted(tp, TIFFTAG_RESOLUTIONUNIT, &resunit); |
| 245 |
TIFFGetFieldDefaulted(tp, TIFFTAG_XRESOLUTION, &xres); |
| 246 |
TIFFGetFieldDefaulted(tp, TIFFTAG_YRESOLUTION, &yres); |
| 247 |
TIFFGetFieldDefaulted(tp, TIFFTAG_ORIENTATION, &orient); |
| 248 |
/* put out our image */ |
| 249 |
if (putimage(orient, (uint32)xsiz, (uint32)ysiz, |
| 250 |
xres, yres, resunit, pix) != 0) |
| 251 |
return(-1); |
| 252 |
/* free data and we're done */ |
| 253 |
free((char *)pix); |
| 254 |
return(0); |
| 255 |
} |
| 256 |
|
| 257 |
|
| 258 |
putimage(or, xs, ys, xr, yr, ru, pd) /* write out our image */ |
| 259 |
uint16 or; |
| 260 |
uint32 xs, ys; |
| 261 |
float xr, yr; |
| 262 |
uint16 ru; |
| 263 |
BYTE *pd; |
| 264 |
{ |
| 265 |
register int y; |
| 266 |
uint32 rowsperstrip; |
| 267 |
|
| 268 |
TIFFSetField(tifout, TIFFTAG_COMPRESSION, COMPRESSION_NONE); |
| 269 |
if (flags & TM_F_BW) { |
| 270 |
TIFFSetField(tifout, TIFFTAG_PHOTOMETRIC, |
| 271 |
PHOTOMETRIC_MINISBLACK); |
| 272 |
TIFFSetField(tifout, TIFFTAG_SAMPLESPERPIXEL, 1); |
| 273 |
} else { |
| 274 |
TIFFSetField(tifout, TIFFTAG_PHOTOMETRIC, PHOTOMETRIC_RGB); |
| 275 |
TIFFSetField(tifout, TIFFTAG_SAMPLESPERPIXEL, 3); |
| 276 |
} |
| 277 |
if (rgbp != stdprims) { |
| 278 |
TIFFSetField(tifout, TIFFTAG_PRIMARYCHROMATICITIES, |
| 279 |
(float *)rgbp); |
| 280 |
TIFFSetField(tifout, TIFFTAG_WHITEPOINT, (float *)rgbp[WHT]); |
| 281 |
} |
| 282 |
TIFFSetField(tifout, TIFFTAG_BITSPERSAMPLE, 8); |
| 283 |
TIFFSetField(tifout, TIFFTAG_IMAGEWIDTH, xs); |
| 284 |
TIFFSetField(tifout, TIFFTAG_IMAGELENGTH, ys); |
| 285 |
TIFFSetField(tifout, TIFFTAG_RESOLUTIONUNIT, ru); |
| 286 |
TIFFSetField(tifout, TIFFTAG_XRESOLUTION, xr); |
| 287 |
TIFFSetField(tifout, TIFFTAG_YRESOLUTION, yr); |
| 288 |
TIFFSetField(tifout, TIFFTAG_PLANARCONFIG, PLANARCONFIG_CONTIG); |
| 289 |
TIFFSetField(tifout, TIFFTAG_ORIENTATION, or); |
| 290 |
/* compute good strip size */ |
| 291 |
rowsperstrip = 8192/TIFFScanlineSize(tifout); |
| 292 |
if (rowsperstrip < 1) rowsperstrip = 1; |
| 293 |
TIFFSetField(tifout, TIFFTAG_ROWSPERSTRIP, rowsperstrip); |
| 294 |
/* write out scanlines */ |
| 295 |
if (flags & TM_F_BW) { |
| 296 |
for (y = 0; y < ys; y++) |
| 297 |
if (TIFFWriteScanline(tifout, pd + y*xs, y, 0) < 0) |
| 298 |
goto writerr; |
| 299 |
} else { |
| 300 |
for (y = 0; y < ys; y++) |
| 301 |
if (TIFFWriteScanline(tifout, pd + y*3*xs, y, 0) < 0) |
| 302 |
goto writerr; |
| 303 |
} |
| 304 |
return(0); /* all done! */ |
| 305 |
writerr: |
| 306 |
fputs("Error writing TIFF output\n", stderr); |
| 307 |
return(-1); |
| 308 |
} |
