| 12 |
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#define LOGLUV_PUBLIC 1 |
| 13 |
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| 14 |
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#include <stdio.h> |
| 15 |
+ |
#include <stdlib.h> |
| 16 |
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#include <string.h> |
| 17 |
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#include <math.h> |
| 18 |
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#include "tiffio.h" |
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static MEM_PTR luv24Init(); |
| 32 |
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static void luv24NewSpace(); |
| 33 |
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#else |
| 34 |
< |
static MEM_PTR luv32Init(struct tmStruct *); |
| 35 |
< |
static void luv32NewSpace(struct tmStruct *); |
| 36 |
< |
static MEM_PTR luv24Init(struct tmStruct *); |
| 37 |
< |
static void luv24NewSpace(struct tmStruct *); |
| 34 |
> |
static MEM_PTR luv32Init(TMstruct *); |
| 35 |
> |
static void luv32NewSpace(TMstruct *); |
| 36 |
> |
static MEM_PTR luv24Init(TMstruct *); |
| 37 |
> |
static void luv24NewSpace(TMstruct *); |
| 38 |
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#endif |
| 39 |
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| 40 |
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typedef struct { |
| 41 |
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int offset; /* computed luminance offset */ |
| 42 |
< |
BYTE rgbval[1<<16][3]; /* computed RGB value for given uv */ |
| 42 |
> |
uby8 rgbval[1<<16][3]; /* computed RGB value for given uv */ |
| 43 |
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uint32 rgbflg[1<<(16-5)]; /* flags for computed values */ |
| 44 |
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} LUV32DATA; /* LogLuv 32-bit conversion data */ |
| 45 |
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| 53 |
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| 54 |
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typedef struct { |
| 55 |
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int offset; /* computed luminance offset */ |
| 56 |
< |
BYTE rgbval[1<<14][3]; /* computed rgb value for uv index */ |
| 56 |
> |
uby8 rgbval[1<<14][3]; /* computed rgb value for uv index */ |
| 57 |
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uint32 rgbflg[1<<(14-5)]; /* flags for computed values */ |
| 58 |
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} LUV24DATA; /* LogLuv 24-bit conversion data */ |
| 59 |
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static void |
| 69 |
< |
uv2rgb(rgb, tm, uvp) /* compute RGB from uv coordinate */ |
| 70 |
< |
BYTE rgb[3]; |
| 71 |
< |
register struct tmStruct *tm; |
| 69 |
> |
uv2rgb(rgb, tms, uvp) /* compute RGB from uv coordinate */ |
| 70 |
> |
uby8 rgb[3]; |
| 71 |
> |
register TMstruct *tms; |
| 72 |
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double uvp[2]; |
| 73 |
< |
{ /* Should check that tm->inppri==TM_XYZPRIM beforehand... */ |
| 73 |
> |
{ /* Should check that tms->inppri==TM_XYZPRIM beforehand... */ |
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double d, x, y; |
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COLOR XYZ, RGB; |
| 76 |
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/* convert to XYZ */ |
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d = 1./(6.*uvp[0] - 16.*uvp[1] + 12.); |
| 78 |
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x = 9.*uvp[0] * d; |
| 79 |
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y = 4.*uvp[1] * d; |
| 80 |
< |
XYZ[CIEY] = 1./tm->inpsf; |
| 80 |
> |
XYZ[CIEY] = 1./tms->inpsf; |
| 81 |
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XYZ[CIEX] = x/y * XYZ[CIEY]; |
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XYZ[CIEZ] = (1.-x-y)/y * XYZ[CIEY]; |
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/* convert to RGB and clip */ |
| 84 |
< |
colortrans(RGB, tm->cmat, XYZ); |
| 84 |
> |
colortrans(RGB, tms->cmat, XYZ); |
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clipgamut(RGB, 1., CGAMUT_LOWER, cblack, cwhite); |
| 86 |
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/* perform final scaling & gamma */ |
| 87 |
< |
d = tm->clf[RED] * RGB[RED]; |
| 88 |
< |
rgb[RED] = d>=.999 ? 255 : (int)(256.*pow(d, 1./tm->mongam)); |
| 89 |
< |
d = tm->clf[GRN] * RGB[GRN]; |
| 90 |
< |
rgb[GRN] = d>=.999 ? 255 : (int)(256.*pow(d, 1./tm->mongam)); |
| 91 |
< |
d = tm->clf[BLU] * RGB[BLU]; |
| 92 |
< |
rgb[BLU] = d>=.999 ? 255 : (int)(256.*pow(d, 1./tm->mongam)); |
| 87 |
> |
d = tms->clf[RED] * RGB[RED]; |
| 88 |
> |
rgb[RED] = d>=.999 ? 255 : (int)(256.*pow(d, 1./tms->mongam)); |
| 89 |
> |
d = tms->clf[GRN] * RGB[GRN]; |
| 90 |
> |
rgb[GRN] = d>=.999 ? 255 : (int)(256.*pow(d, 1./tms->mongam)); |
| 91 |
> |
d = tms->clf[BLU] * RGB[BLU]; |
| 92 |
> |
rgb[BLU] = d>=.999 ? 255 : (int)(256.*pow(d, 1./tms->mongam)); |
| 93 |
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} |
| 94 |
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| 95 |
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| 124 |
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| 125 |
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| 126 |
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int |
| 127 |
< |
tmCvLuv32(ls, cs, luvs, len) /* convert raw 32-bit LogLuv values */ |
| 128 |
< |
TMbright *ls; |
| 129 |
< |
BYTE *cs; |
| 130 |
< |
uint32 *luvs; |
| 131 |
< |
int len; |
| 127 |
> |
tmCvLuv32( /* convert raw 32-bit LogLuv values */ |
| 128 |
> |
TMstruct *tms, |
| 129 |
> |
TMbright *ls, |
| 130 |
> |
uby8 *cs, |
| 131 |
> |
uint32 *luvs, |
| 132 |
> |
int len |
| 133 |
> |
) |
| 134 |
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{ |
| 135 |
< |
static char funcName[] = "tmCvLuv32"; |
| 135 |
> |
static const char funcName[] = "tmCvLuv32"; |
| 136 |
|
double uvp[2]; |
| 137 |
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register LUV32DATA *ld; |
| 138 |
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register int i, j; |
| 139 |
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/* check arguments */ |
| 140 |
< |
if (tmTop == NULL) |
| 140 |
> |
if (tms == NULL) |
| 141 |
|
returnErr(TM_E_TMINVAL); |
| 142 |
< |
if (ls == NULL | luvs == NULL | len < 0) |
| 142 |
> |
if ((ls == NULL) | (luvs == NULL) | (len < 0)) |
| 143 |
|
returnErr(TM_E_ILLEGAL); |
| 144 |
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/* check package registration */ |
| 145 |
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if (luv32Reg < 0) { |
| 148 |
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tmMkMesofact(); |
| 149 |
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} |
| 150 |
|
/* get package data */ |
| 151 |
< |
if ((ld = (LUV32DATA *)tmPkgData(tmTop,luv32Reg)) == NULL) |
| 151 |
> |
if ((ld = (LUV32DATA *)tmPkgData(tms,luv32Reg)) == NULL) |
| 152 |
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returnErr(TM_E_NOMEM); |
| 153 |
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/* convert each pixel */ |
| 154 |
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for (i = len; i--; ) { |
| 160 |
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if (cs == TM_NOCHROM) /* no color? */ |
| 161 |
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continue; |
| 162 |
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/* get chrominance */ |
| 163 |
< |
if (tmTop->flags & TM_F_MESOPIC && ls[i] < BMESUPPER) { |
| 163 |
> |
if (tms->flags & TM_F_MESOPIC && ls[i] < BMESUPPER) { |
| 164 |
|
uvp[0] = 1./UVSCALE*((luvs[i]>>8 & 0xff) + .5); |
| 165 |
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uvp[1] = 1./UVSCALE*((luvs[i] & 0xff) + .5); |
| 166 |
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ls[i] = compmeshift(ls[i], uvp); |
| 167 |
< |
j = tmTop->flags&TM_F_BW || ls[i]<BMESLOWER |
| 167 |
> |
j = tms->flags&TM_F_BW || ls[i]<BMESLOWER |
| 168 |
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? UVNEU |
| 169 |
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: (int)(uvp[0]*UVSCALE)<<8 |
| 170 |
|
| (int)(uvp[1]*UVSCALE); |
| 171 |
|
} else { |
| 172 |
< |
j = tmTop->flags&TM_F_BW ? UVNEU : luvs[i]&0xffff; |
| 172 |
> |
j = tms->flags&TM_F_BW ? UVNEU : luvs[i]&0xffff; |
| 173 |
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} |
| 174 |
|
if (!isuvset(ld, j)) { |
| 175 |
|
uvp[0] = 1./UVSCALE*((j>>8) + .5); |
| 176 |
|
uvp[1] = 1./UVSCALE*((j & 0xff) + .5); |
| 177 |
< |
uv2rgb(ld->rgbval[j], tmTop, uvp); |
| 177 |
> |
uv2rgb(ld->rgbval[j], tms, uvp); |
| 178 |
|
setuv(ld, j); |
| 179 |
|
} |
| 180 |
|
cs[3*i ] = ld->rgbval[j][RED]; |
| 186 |
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|
| 187 |
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|
| 188 |
|
int |
| 189 |
< |
tmCvLuv24(ls, cs, luvs, len) /* convert raw 24-bit LogLuv values */ |
| 190 |
< |
TMbright *ls; |
| 191 |
< |
BYTE *cs; |
| 192 |
< |
uint32 *luvs; |
| 193 |
< |
int len; |
| 189 |
> |
tmCvLuv24( /* convert raw 24-bit LogLuv values */ |
| 190 |
> |
TMstruct *tms, |
| 191 |
> |
TMbright *ls, |
| 192 |
> |
uby8 *cs, |
| 193 |
> |
uint32 *luvs, |
| 194 |
> |
int len |
| 195 |
> |
) |
| 196 |
|
{ |
| 197 |
|
char funcName[] = "tmCvLuv24"; |
| 198 |
|
double uvp[2]; |
| 199 |
|
register LUV24DATA *ld; |
| 200 |
|
register int i, j; |
| 201 |
|
/* check arguments */ |
| 202 |
< |
if (tmTop == NULL) |
| 202 |
> |
if (tms == NULL) |
| 203 |
|
returnErr(TM_E_TMINVAL); |
| 204 |
< |
if (ls == NULL | luvs == NULL | len < 0) |
| 204 |
> |
if ((ls == NULL) | (luvs == NULL) | (len < 0)) |
| 205 |
|
returnErr(TM_E_ILLEGAL); |
| 206 |
|
/* check package registration */ |
| 207 |
|
if (luv24Reg < 0) { |
| 210 |
|
tmMkMesofact(); |
| 211 |
|
} |
| 212 |
|
/* get package data */ |
| 213 |
< |
if ((ld = (LUV24DATA *)tmPkgData(tmTop,luv24Reg)) == NULL) |
| 213 |
> |
if ((ld = (LUV24DATA *)tmPkgData(tms,luv24Reg)) == NULL) |
| 214 |
|
returnErr(TM_E_NOMEM); |
| 215 |
|
/* convert each pixel */ |
| 216 |
|
for (i = len; i--; ) { |
| 219 |
|
if (cs == TM_NOCHROM) /* no color? */ |
| 220 |
|
continue; |
| 221 |
|
/* get chrominance */ |
| 222 |
< |
if (tmTop->flags & TM_F_MESOPIC && ls[i] < BMESUPPER) { |
| 223 |
< |
if (uv_decode(uvp, uvp+1, luvs[i]&0x3fff) < 0) { |
| 222 |
> |
if (tms->flags & TM_F_MESOPIC && ls[i] < BMESUPPER) { |
| 223 |
> |
if (uv_decode(&uvp[0], &uvp[1], luvs[i]&0x3fff) < 0) { |
| 224 |
|
uvp[0] = U_NEU; /* should barf? */ |
| 225 |
|
uvp[1] = V_NEU; |
| 226 |
|
} |
| 227 |
|
ls[i] = compmeshift(ls[i], uvp); |
| 228 |
< |
if (tmTop->flags&TM_F_BW || ls[i]<BMESLOWER |
| 228 |
> |
if (tms->flags&TM_F_BW || ls[i]<BMESLOWER |
| 229 |
|
|| (j = uv_encode(uvp[0], uvp[1], |
| 230 |
|
SGILOGENCODE_NODITHER)) < 0) |
| 231 |
|
j = uv14neu; |
| 232 |
|
} else { |
| 233 |
< |
j = tmTop->flags&TM_F_BW ? uv14neu : luvs[i]&0x3fff; |
| 233 |
> |
j = tms->flags&TM_F_BW ? uv14neu : |
| 234 |
> |
(int)(luvs[i]&0x3fff); |
| 235 |
|
} |
| 236 |
|
if (!isuvset(ld, j)) { |
| 237 |
|
if (uv_decode(&uvp[0], &uvp[1], j) < 0) { |
| 238 |
|
uvp[0] = U_NEU; uvp[1] = V_NEU; |
| 239 |
|
} |
| 240 |
< |
uv2rgb(ld->rgbval[j], tmTop, uvp); |
| 240 |
> |
uv2rgb(ld->rgbval[j], tms, uvp); |
| 241 |
|
setuv(ld, j); |
| 242 |
|
} |
| 243 |
|
cs[3*i ] = ld->rgbval[j][RED]; |
| 249 |
|
|
| 250 |
|
|
| 251 |
|
int |
| 252 |
< |
tmCvL16(ls, l16s, len) /* convert 16-bit LogL values */ |
| 253 |
< |
TMbright *ls; |
| 254 |
< |
uint16 *l16s; |
| 255 |
< |
int len; |
| 252 |
> |
tmCvL16( /* convert 16-bit LogL values */ |
| 253 |
> |
TMstruct *tms, |
| 254 |
> |
TMbright *ls, |
| 255 |
> |
uint16 *l16s, |
| 256 |
> |
int len |
| 257 |
> |
) |
| 258 |
|
{ |
| 259 |
< |
static char funcName[] = "tmCvL16"; |
| 259 |
> |
static const char funcName[] = "tmCvL16"; |
| 260 |
|
static double lastsf; |
| 261 |
|
static int offset; |
| 262 |
|
register int i; |
| 263 |
|
/* check arguments */ |
| 264 |
< |
if (tmTop == NULL) |
| 264 |
> |
if (tms == NULL) |
| 265 |
|
returnErr(TM_E_TMINVAL); |
| 266 |
< |
if (ls == NULL | l16s == NULL | len < 0) |
| 266 |
> |
if ((ls == NULL) | (l16s == NULL) | (len < 0)) |
| 267 |
|
returnErr(TM_E_ILLEGAL); |
| 268 |
|
/* check scaling offset */ |
| 269 |
< |
if (!FEQ(tmTop->inpsf, lastsf)) { |
| 270 |
< |
offset = BRT2SCALE(64); |
| 271 |
< |
if (tmTop->inpsf > 1.0001) |
| 264 |
< |
offset -= (int)(TM_BRTSCALE*log(tmTop->inpsf)+.5); |
| 265 |
< |
else if (tmTop->inpsf < 0.9999) |
| 266 |
< |
offset -= (int)(TM_BRTSCALE*log(tmTop->inpsf)-.5); |
| 267 |
< |
lastsf = tmTop->inpsf; |
| 269 |
> |
if (!FEQ(tms->inpsf, lastsf)) { |
| 270 |
> |
offset = BRT2SCALE(64) - tmCvLuminance(tms->inpsf); |
| 271 |
> |
lastsf = tms->inpsf; |
| 272 |
|
} |
| 273 |
|
/* convert each pixel */ |
| 274 |
|
for (i = len; i--; ) { |
| 282 |
|
|
| 283 |
|
|
| 284 |
|
static void |
| 285 |
< |
luv32NewSpace(tm) /* initialize 32-bit LogLuv color space */ |
| 286 |
< |
struct tmStruct *tm; |
| 285 |
> |
luv32NewSpace(tms) /* initialize 32-bit LogLuv color space */ |
| 286 |
> |
TMstruct *tms; |
| 287 |
|
{ |
| 288 |
|
register LUV32DATA *ld; |
| 289 |
|
|
| 290 |
< |
if (tm->inppri != TM_XYZPRIM) { /* panic time! */ |
| 290 |
> |
if (tms->inppri != TM_XYZPRIM) { /* panic time! */ |
| 291 |
|
fputs("Improper input color space in luv32NewSpace!\n", stderr); |
| 292 |
|
exit(1); |
| 293 |
|
} |
| 294 |
< |
ld = (LUV32DATA *)tm->pd[luv32Reg]; |
| 295 |
< |
ld->offset = BRT2SCALE(64); |
| 292 |
< |
if (tm->inpsf > 1.0001) |
| 293 |
< |
ld->offset -= (int)(TM_BRTSCALE*log(tmTop->inpsf)+.5); |
| 294 |
< |
else if (tm->inpsf < 0.9999) |
| 295 |
< |
ld->offset -= (int)(TM_BRTSCALE*log(tmTop->inpsf)-.5); |
| 294 |
> |
ld = (LUV32DATA *)tms->pd[luv32Reg]; |
| 295 |
> |
ld->offset = BRT2SCALE(64) - tmCvLuminance(tms->inpsf); |
| 296 |
|
clruvall(ld); |
| 297 |
|
} |
| 298 |
|
|
| 299 |
|
|
| 300 |
|
static MEM_PTR |
| 301 |
< |
luv32Init(tm) /* allocate data for 32-bit LogLuv decoder */ |
| 302 |
< |
struct tmStruct *tm; |
| 301 |
> |
luv32Init(tms) /* allocate data for 32-bit LogLuv decoder */ |
| 302 |
> |
TMstruct *tms; |
| 303 |
|
{ |
| 304 |
|
register LUV32DATA *ld; |
| 305 |
|
|
| 306 |
|
ld = (LUV32DATA *)malloc(sizeof(LUV32DATA)); |
| 307 |
|
if (ld == NULL) |
| 308 |
|
return(NULL); |
| 309 |
< |
tm->pd[luv32Reg] = (MEM_PTR)ld; |
| 310 |
< |
luv32NewSpace(tm); |
| 309 |
> |
tms->pd[luv32Reg] = (MEM_PTR)ld; |
| 310 |
> |
luv32NewSpace(tms); |
| 311 |
|
return((MEM_PTR)ld); |
| 312 |
|
} |
| 313 |
|
|
| 314 |
|
|
| 315 |
|
static void |
| 316 |
< |
luv24NewSpace(tm) /* initialize 24-bit LogLuv color space */ |
| 317 |
< |
struct tmStruct *tm; |
| 316 |
> |
luv24NewSpace(tms) /* initialize 24-bit LogLuv color space */ |
| 317 |
> |
TMstruct *tms; |
| 318 |
|
{ |
| 319 |
|
register LUV24DATA *ld; |
| 320 |
|
|
| 321 |
< |
if (tm->inppri != TM_XYZPRIM) { /* panic time! */ |
| 321 |
> |
if (tms->inppri != TM_XYZPRIM) { /* panic time! */ |
| 322 |
|
fputs("Improper input color space in luv24NewSpace!\n", stderr); |
| 323 |
|
exit(1); |
| 324 |
|
} |
| 325 |
< |
ld = (LUV24DATA *)tm->pd[luv24Reg]; |
| 326 |
< |
ld->offset = BRT2SCALE(12); |
| 327 |
< |
if (tm->inpsf > 1.0001) |
| 328 |
< |
ld->offset -= (int)(TM_BRTSCALE*log(tmTop->inpsf)+.5); |
| 329 |
< |
else if (tm->inpsf < 0.9999) |
| 330 |
< |
ld->offset -= (int)(TM_BRTSCALE*log(tmTop->inpsf)-.5); |
| 325 |
> |
ld = (LUV24DATA *)tms->pd[luv24Reg]; |
| 326 |
> |
ld->offset = BRT2SCALE(12) - tmCvLuminance(tms->inpsf); |
| 327 |
|
clruvall(ld); |
| 328 |
|
} |
| 329 |
|
|
| 330 |
|
|
| 331 |
|
static MEM_PTR |
| 332 |
< |
luv24Init(tm) /* allocate data for 24-bit LogLuv decoder */ |
| 333 |
< |
struct tmStruct *tm; |
| 332 |
> |
luv24Init(tms) /* allocate data for 24-bit LogLuv decoder */ |
| 333 |
> |
TMstruct *tms; |
| 334 |
|
{ |
| 335 |
|
register LUV24DATA *ld; |
| 336 |
|
|
| 337 |
|
ld = (LUV24DATA *)malloc(sizeof(LUV24DATA)); |
| 338 |
|
if (ld == NULL) |
| 339 |
|
return(NULL); |
| 340 |
< |
tm->pd[luv24Reg] = (MEM_PTR)ld; |
| 340 |
> |
tms->pd[luv24Reg] = (MEM_PTR)ld; |
| 341 |
|
if (uv14neu < 0) /* initialize neutral color index */ |
| 342 |
|
uv14neu = uv_encode(U_NEU, V_NEU, SGILOGENCODE_NODITHER); |
| 343 |
< |
luv24NewSpace(tm); |
| 343 |
> |
luv24NewSpace(tms); |
| 344 |
|
return((MEM_PTR)ld); |
| 345 |
|
} |
