| 1 |
#ifndef lint |
| 2 |
static const char RCSid[] = "$Id: tmaptiff.c,v 3.10 2011/05/20 02:06:38 greg Exp $"; |
| 3 |
#endif |
| 4 |
/* |
| 5 |
* Perform tone mapping on TIFF input. |
| 6 |
* |
| 7 |
* Externals declared in tmaptiff.h |
| 8 |
*/ |
| 9 |
|
| 10 |
#include "copyright.h" |
| 11 |
|
| 12 |
#include <stdio.h> |
| 13 |
#include <stdlib.h> |
| 14 |
#include "tiffio.h" |
| 15 |
#include "tmprivat.h" |
| 16 |
#include "tmaptiff.h" |
| 17 |
|
| 18 |
/* input cases we handle */ |
| 19 |
#define TC_LOGLUV32 1 |
| 20 |
#define TC_LOGLUV24 2 |
| 21 |
#define TC_LOGL16 3 |
| 22 |
#define TC_GRYFLOAT 4 |
| 23 |
#define TC_RGBFLOAT 5 |
| 24 |
#define TC_GRYSHORT 6 |
| 25 |
#define TC_RGBSHORT 7 |
| 26 |
|
| 27 |
/* figure out what kind of TIFF we have and if we can tone-map it */ |
| 28 |
static int |
| 29 |
getTIFFtype(TIFF *tif) |
| 30 |
{ |
| 31 |
uint16 comp, phot, pconf; |
| 32 |
uint16 samp_fmt, bits_samp; |
| 33 |
|
| 34 |
TIFFGetFieldDefaulted(tif, TIFFTAG_PLANARCONFIG, &pconf); |
| 35 |
if (pconf != PLANARCONFIG_CONTIG) |
| 36 |
return(0); |
| 37 |
TIFFGetFieldDefaulted(tif, TIFFTAG_PHOTOMETRIC, &phot); |
| 38 |
TIFFGetFieldDefaulted(tif, TIFFTAG_COMPRESSION, &comp); |
| 39 |
TIFFGetFieldDefaulted(tif, TIFFTAG_SAMPLEFORMAT, &samp_fmt); |
| 40 |
TIFFGetFieldDefaulted(tif, TIFFTAG_BITSPERSAMPLE, &bits_samp); |
| 41 |
switch (phot) { |
| 42 |
case PHOTOMETRIC_LOGLUV: |
| 43 |
if (comp == COMPRESSION_SGILOG) |
| 44 |
return(TC_LOGLUV32); |
| 45 |
if (comp == COMPRESSION_SGILOG24) |
| 46 |
return(TC_LOGLUV24); |
| 47 |
return(0); |
| 48 |
case PHOTOMETRIC_LOGL: |
| 49 |
if (comp == COMPRESSION_SGILOG) |
| 50 |
return(TC_LOGL16); |
| 51 |
return(0); |
| 52 |
case PHOTOMETRIC_MINISBLACK: |
| 53 |
if (samp_fmt == SAMPLEFORMAT_UINT) { |
| 54 |
if (bits_samp == 16) |
| 55 |
return(TC_GRYSHORT); |
| 56 |
return(0); |
| 57 |
} |
| 58 |
if (samp_fmt == SAMPLEFORMAT_IEEEFP) { |
| 59 |
if (bits_samp == 8*sizeof(float)) |
| 60 |
return(TC_GRYFLOAT); |
| 61 |
return(0); |
| 62 |
} |
| 63 |
return(0); |
| 64 |
case PHOTOMETRIC_RGB: |
| 65 |
if (samp_fmt == SAMPLEFORMAT_UINT) { |
| 66 |
if (bits_samp == 16) |
| 67 |
return(TC_RGBSHORT); |
| 68 |
return(0); |
| 69 |
} |
| 70 |
if (samp_fmt == SAMPLEFORMAT_IEEEFP) { |
| 71 |
if (bits_samp == 8*sizeof(float)) |
| 72 |
return(TC_RGBFLOAT); |
| 73 |
return(0); |
| 74 |
} |
| 75 |
return(0); |
| 76 |
} |
| 77 |
return(0); |
| 78 |
} |
| 79 |
|
| 80 |
/* load and convert TIFF */ |
| 81 |
int |
| 82 |
tmLoadTIFF(TMstruct *tms, TMbright **lpp, uby8 **cpp, |
| 83 |
int *xp, int *yp, char *fname, TIFF *tp) |
| 84 |
{ |
| 85 |
char *funcName = fname==NULL ? "tmLoadTIFF" : fname; |
| 86 |
RGBPRIMP inppri = tms->monpri; |
| 87 |
RGBPRIMS myprims; |
| 88 |
float *fa; |
| 89 |
TIFF *tif; |
| 90 |
int err; |
| 91 |
union {uint16 *w; uint32 *l; float *f; MEM_PTR p;} sl; |
| 92 |
uint32 width, height; |
| 93 |
int tcase; |
| 94 |
double stonits; |
| 95 |
int y; |
| 96 |
/* check arguments */ |
| 97 |
if (tms == NULL) |
| 98 |
returnErr(TM_E_TMINVAL); |
| 99 |
if ((lpp == NULL) | (xp == NULL) | (yp == NULL) | |
| 100 |
((fname == NULL) & (tp == NULL))) |
| 101 |
returnErr(TM_E_ILLEGAL); |
| 102 |
/* check/get TIFF tags */ |
| 103 |
sl.p = NULL; *lpp = NULL; |
| 104 |
if (cpp != TM_NOCHROMP) *cpp = TM_NOCHROM; |
| 105 |
err = TM_E_BADFILE; |
| 106 |
if ((tif = tp) == NULL && (tif = TIFFOpen(fname, "r")) == NULL) |
| 107 |
returnErr(TM_E_BADFILE); |
| 108 |
tcase = getTIFFtype(tif); |
| 109 |
if (!tcase) |
| 110 |
goto done; |
| 111 |
if (!TIFFGetField(tif, TIFFTAG_IMAGEWIDTH, &width) || |
| 112 |
!TIFFGetField(tif, TIFFTAG_IMAGELENGTH, &height)) |
| 113 |
goto done; |
| 114 |
*xp = width; *yp = height; |
| 115 |
if (TIFFGetField(tif, TIFFTAG_PRIMARYCHROMATICITIES, &fa)) { |
| 116 |
myprims[RED][CIEX] = fa[0]; |
| 117 |
myprims[RED][CIEY] = fa[1]; |
| 118 |
myprims[GRN][CIEX] = fa[2]; |
| 119 |
myprims[GRN][CIEY] = fa[3]; |
| 120 |
myprims[BLU][CIEX] = fa[4]; |
| 121 |
myprims[BLU][CIEY] = fa[5]; |
| 122 |
myprims[WHT][CIEX] = 1./3.; |
| 123 |
myprims[WHT][CIEY] = 1./3.; |
| 124 |
if (TIFFGetField(tif, TIFFTAG_WHITEPOINT, &fa)) { |
| 125 |
myprims[WHT][CIEX] = fa[0]; |
| 126 |
myprims[WHT][CIEY] = fa[1]; |
| 127 |
} |
| 128 |
inppri = myprims; |
| 129 |
} |
| 130 |
if (!TIFFGetField(tif, TIFFTAG_STONITS, &stonits)) |
| 131 |
stonits = 1.; |
| 132 |
switch (tcase) { /* set up conversion */ |
| 133 |
case TC_LOGLUV32: |
| 134 |
case TC_LOGLUV24: |
| 135 |
TIFFSetField(tif, TIFFTAG_SGILOGDATAFMT, SGILOGDATAFMT_RAW); |
| 136 |
sl.l = (uint32 *)malloc(width*sizeof(uint32)); |
| 137 |
tmSetSpace(tms, TM_XYZPRIM, stonits, NULL); |
| 138 |
break; |
| 139 |
case TC_LOGL16: |
| 140 |
TIFFSetField(tif, TIFFTAG_SGILOGDATAFMT, SGILOGDATAFMT_16BIT); |
| 141 |
sl.w = (uint16 *)malloc(width*sizeof(uint16)); |
| 142 |
tmSetSpace(tms, tms->monpri, stonits, NULL); |
| 143 |
break; |
| 144 |
case TC_RGBFLOAT: |
| 145 |
sl.f = (float *)malloc(width*3*sizeof(float)); |
| 146 |
tmSetSpace(tms, inppri, stonits, NULL); |
| 147 |
break; |
| 148 |
case TC_GRYFLOAT: |
| 149 |
sl.f = (float *)malloc(width*sizeof(float)); |
| 150 |
tmSetSpace(tms, tms->monpri, stonits, NULL); |
| 151 |
break; |
| 152 |
case TC_RGBSHORT: |
| 153 |
sl.w = (uint16 *)malloc(width*3*sizeof(uint16)); |
| 154 |
tmSetSpace(tms, inppri, stonits, NULL); |
| 155 |
break; |
| 156 |
case TC_GRYSHORT: |
| 157 |
sl.w = (uint16 *)malloc(width*sizeof(uint16)); |
| 158 |
tmSetSpace(tms, tms->monpri, stonits, NULL); |
| 159 |
break; |
| 160 |
default: |
| 161 |
err = TM_E_CODERR1; |
| 162 |
goto done; |
| 163 |
} |
| 164 |
*lpp = (TMbright *)malloc(width*height*sizeof(TMbright)); |
| 165 |
if ((sl.p == NULL) | (*lpp == NULL)) { |
| 166 |
err = TM_E_NOMEM; |
| 167 |
goto done; |
| 168 |
} |
| 169 |
switch (tcase) { /* allocate color if needed */ |
| 170 |
case TC_LOGLUV32: |
| 171 |
case TC_LOGLUV24: |
| 172 |
case TC_RGBFLOAT: |
| 173 |
case TC_RGBSHORT: |
| 174 |
if (cpp == TM_NOCHROMP) |
| 175 |
break; |
| 176 |
*cpp = (uby8 *)malloc(width*height*3*sizeof(uby8)); |
| 177 |
if (*cpp == NULL) { |
| 178 |
err = TM_E_NOMEM; |
| 179 |
goto done; |
| 180 |
} |
| 181 |
break; |
| 182 |
} |
| 183 |
/* read and convert each scanline */ |
| 184 |
for (y = 0; y < height; y++) { |
| 185 |
if (TIFFReadScanline(tif, sl.p, y, 0) < 0) { |
| 186 |
err = TM_E_BADFILE; |
| 187 |
break; |
| 188 |
} |
| 189 |
switch (tcase) { |
| 190 |
case TC_LOGLUV32: |
| 191 |
err = tmCvLuv32(tms, *lpp + y*width, |
| 192 |
cpp==TM_NOCHROMP ? TM_NOCHROM : *cpp+y*3*width, |
| 193 |
sl.l, width); |
| 194 |
break; |
| 195 |
case TC_LOGLUV24: |
| 196 |
err = tmCvLuv24(tms, *lpp + y*width, |
| 197 |
cpp==TM_NOCHROMP ? TM_NOCHROM : *cpp+y*3*width, |
| 198 |
sl.l, width); |
| 199 |
break; |
| 200 |
case TC_LOGL16: |
| 201 |
err = tmCvL16(tms, *lpp + y*width, sl.w, width); |
| 202 |
break; |
| 203 |
case TC_RGBFLOAT: |
| 204 |
err = tmCvColors(tms, *lpp + y*width, |
| 205 |
cpp==TM_NOCHROMP ? TM_NOCHROM : *cpp+y*3*width, |
| 206 |
(COLOR *)sl.f, width); |
| 207 |
break; |
| 208 |
case TC_GRYFLOAT: |
| 209 |
err = tmCvGrays(tms, *lpp + y*width, sl.f, width); |
| 210 |
break; |
| 211 |
case TC_RGBSHORT: |
| 212 |
err = tmCvRGB48(tms, *lpp + y*width, |
| 213 |
cpp==TM_NOCHROMP ? TM_NOCHROM : *cpp+y*3*width, |
| 214 |
(uint16 (*)[3])sl.w, width, DEFGAM); |
| 215 |
break; |
| 216 |
case TC_GRYSHORT: |
| 217 |
err = tmCvGray16(tms, *lpp + y*width, |
| 218 |
sl.w, width, DEFGAM); |
| 219 |
break; |
| 220 |
default: |
| 221 |
err = TM_E_CODERR1; |
| 222 |
break; |
| 223 |
} |
| 224 |
if (err != TM_E_OK) |
| 225 |
break; |
| 226 |
} |
| 227 |
done: /* clean up */ |
| 228 |
if (tp == NULL) |
| 229 |
TIFFClose(tif); |
| 230 |
if (sl.p != NULL) |
| 231 |
free(sl.p); |
| 232 |
if (err != TM_E_OK) { /* free buffers on error */ |
| 233 |
if (*lpp != NULL) |
| 234 |
free((MEM_PTR)*lpp); |
| 235 |
*lpp = NULL; |
| 236 |
if (cpp != TM_NOCHROMP) { |
| 237 |
if (*cpp != TM_NOCHROM) |
| 238 |
free((MEM_PTR)*cpp); |
| 239 |
*cpp = NULL; |
| 240 |
} |
| 241 |
*xp = *yp = 0; |
| 242 |
returnErr(err); |
| 243 |
} |
| 244 |
returnOK; |
| 245 |
} |
| 246 |
|
| 247 |
|
| 248 |
/* |
| 249 |
* Load and tone-map a SGILOG TIFF. |
| 250 |
* Beware of greyscale input -- you must check the PHOTOMETRIC tag to |
| 251 |
* determine that the returned array contains only grey values, not RGB. |
| 252 |
* As in tmMapPicture(), grey values are also returned if flags&TM_F_BW. |
| 253 |
*/ |
| 254 |
int |
| 255 |
tmMapTIFF(uby8 **psp, int *xp, int *yp, int flags, RGBPRIMP monpri, |
| 256 |
double gamval, double Lddyn, double Ldmax, char *fname, TIFF *tp) |
| 257 |
{ |
| 258 |
char *funcName = fname==NULL ? "tmMapTIFF" : fname; |
| 259 |
TMstruct *tms = NULL; |
| 260 |
TMbright *lp; |
| 261 |
uby8 *cp; |
| 262 |
int err; |
| 263 |
/* check arguments */ |
| 264 |
if ((psp == NULL) | (xp == NULL) | (yp == NULL) | (monpri == NULL) | |
| 265 |
((fname == NULL) & (tp == NULL))) |
| 266 |
returnErr(TM_E_ILLEGAL); |
| 267 |
if (gamval < MINGAM) gamval = DEFGAM; |
| 268 |
if (Lddyn < MINLDDYN) Lddyn = DEFLDDYN; |
| 269 |
if (Ldmax < MINLDMAX) Ldmax = DEFLDMAX; |
| 270 |
if (flags & TM_F_BW) monpri = stdprims; |
| 271 |
/* initialize tone mapping */ |
| 272 |
if ((tms = tmInit(flags, monpri, gamval)) == NULL) |
| 273 |
returnErr(TM_E_NOMEM); |
| 274 |
/* load and convert TIFF */ |
| 275 |
cp = TM_NOCHROM; |
| 276 |
err = tmLoadTIFF(tms, &lp, flags&TM_F_BW ? TM_NOCHROMP : &cp, |
| 277 |
xp, yp, fname, tp); |
| 278 |
if (err != TM_E_OK) { |
| 279 |
tmDone(tms); |
| 280 |
return(err); |
| 281 |
} |
| 282 |
if (cp == TM_NOCHROM) { |
| 283 |
*psp = (uby8 *)malloc(*xp * *yp * sizeof(uby8)); |
| 284 |
if (*psp == NULL) { |
| 285 |
free((MEM_PTR)lp); |
| 286 |
tmDone(tms); |
| 287 |
returnErr(TM_E_NOMEM); |
| 288 |
} |
| 289 |
} else |
| 290 |
*psp = cp; |
| 291 |
/* compute color mapping */ |
| 292 |
err = tmAddHisto(tms, lp, *xp * *yp, 1); |
| 293 |
if (err != TM_E_OK) |
| 294 |
goto done; |
| 295 |
err = tmComputeMapping(tms, gamval, Lddyn, Ldmax); |
| 296 |
if (err != TM_E_OK) |
| 297 |
goto done; |
| 298 |
/* map pixels */ |
| 299 |
err = tmMapPixels(tms, *psp, lp, cp, *xp * *yp); |
| 300 |
|
| 301 |
done: /* clean up */ |
| 302 |
free((MEM_PTR)lp); |
| 303 |
tmDone(tms); |
| 304 |
if (err != TM_E_OK) { /* free memory on error */ |
| 305 |
free((MEM_PTR)*psp); |
| 306 |
*psp = NULL; |
| 307 |
*xp = *yp = 0; |
| 308 |
returnErr(err); |
| 309 |
} |
| 310 |
returnOK; |
| 311 |
} |
