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#include "tmprivat.h" |
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#include "resolu.h" |
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#ifdef PCOND |
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#include "rtprocess.h" |
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#ifndef TM_PIC_CTRANS |
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#define TM_PIC_CTRANS 1 /* transform colors? (expensive) */ |
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#endif |
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#define GAMTSZ 1024 |
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typedef struct { |
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BYTE gamb[GAMTSZ]; /* gamma lookup table */ |
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COLR clfb; /* encoded tm->clf */ |
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int clfb[3]; /* encoded tm->clf */ |
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int32 cmatb[3][3]; /* encoded color transform */ |
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TMbright inpsfb; /* encoded tm->inpsf */ |
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} COLRDATA; |
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) |
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{ |
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static const char funcName[] = "tmCvColrs"; |
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COLR cmon; |
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int cmon[4]; |
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register COLRDATA *cd; |
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register int i, bi, li; |
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register int i, j, li, bi; |
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int32 vl; |
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if (tms == NULL) |
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returnErr(TM_E_TMINVAL); |
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if ((ls == NULL) | (scan == NULL) | (len < 0)) |
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returnErr(TM_E_ILLEGAL); |
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#if TM_PIC_CTRANS |
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if (tmNeedMatrix(tms)) { /* need floating point */ |
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#else |
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if (tms->inppri == TM_XYZPRIM) { /* no way around this */ |
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#endif |
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register COLOR *newscan; |
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newscan = (COLOR *)tempbuffer(len*sizeof(COLOR)); |
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if (newscan == NULL) |
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returnErr(TM_E_NOMEM); |
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for (i = len; i--; ) |
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colr_color(newscan[i], scan[i]); |
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return(tmCvColors(tms, ls, cs, newscan, len)); |
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} |
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if (colrReg < 0) { /* build tables if necessary */ |
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colrReg = tmRegPkg(&colrPkg); |
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if (colrReg < 0) |
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if ((cd = (COLRDATA *)tmPkgData(tms,colrReg)) == NULL) |
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returnErr(TM_E_NOMEM); |
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for (i = len; i--; ) { |
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copycolr(cmon, scan[i]); |
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if (tmNeedMatrix(tms)) { /* apply color xform */ |
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for (j = 3; j--; ) { |
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vl = cd->cmatb[j][RED]*(int32)scan[i][RED] + |
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cd->cmatb[j][GRN]*(int32)scan[i][GRN] + |
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cd->cmatb[j][BLU]*(int32)scan[i][BLU] ; |
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if (vl < 0) cmon[j] = vl/0x10000; |
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else cmon[j] = vl>>16; |
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} |
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cmon[EXP] = scan[i][EXP]; |
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} else |
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copycolr(cmon, scan[i]); |
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/* world luminance */ |
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li = ( cd->clfb[RED]*cmon[RED] + |
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li = cd->clfb[RED]*cmon[RED] + |
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cd->clfb[GRN]*cmon[GRN] + |
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cd->clfb[BLU]*cmon[BLU] ) >> 8; |
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bi = BRT2SCALE(cmon[EXP]-COLXS) + |
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logi[li] + cd->inpsfb; |
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cd->clfb[BLU]*cmon[BLU] ; |
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if (li >= 0xff00) li = 255; |
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else li >>= 8; |
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if (li <= 0) { |
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bi = TM_NOBRT; /* bogus value */ |
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li = 1; /* avoid li==0 */ |
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} else { |
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bi = BRT2SCALE(cmon[EXP]-COLXS) + |
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logi[li] + cd->inpsfb; |
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} |
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ls[i] = bi; |
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if (cs == TM_NOCHROM) /* no color? */ |
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continue; |
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/* mesopic adj. */ |
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if (tms->flags & TM_F_MESOPIC && bi < BMESUPPER) { |
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register int pf, sli = normscot(cmon); |
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if (bi < BMESLOWER) |
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int pf, sli = normscot(cmon); |
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if (bi < BMESLOWER) { |
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cmon[RED] = cmon[GRN] = cmon[BLU] = sli; |
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else { |
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} else { |
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if (tms->flags & TM_F_BW) |
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cmon[RED] = cmon[GRN] = cmon[BLU] = li; |
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pf = tmMesofact[bi-BMESLOWER]; |
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sli *= 256 - pf; |
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< |
cmon[RED] = ( sli + pf*cmon[RED] ) >> 8; |
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< |
cmon[GRN] = ( sli + pf*cmon[GRN] ) >> 8; |
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cmon[BLU] = ( sli + pf*cmon[BLU] ) >> 8; |
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for (j = 3; j--; ) { |
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> |
cmon[j] = sli + pf*cmon[j]; |
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if (cmon[j] <= 0) cmon[j] = 0; |
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else cmon[j] >>= 8; |
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> |
} |
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} |
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} else if (tms->flags & TM_F_BW) { |
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cmon[RED] = cmon[GRN] = cmon[BLU] = li; |
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} else { |
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for (j = 3; j--; ) |
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if (cmon[j] < 0) cmon[j] = 0; |
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} |
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bi = ( (int32)GAMTSZ*cd->clfb[RED]*cmon[RED]/li ) >> 8; |
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cs[3*i ] = bi>=GAMTSZ ? 255 : cd->gamb[bi]; |
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{ |
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register COLRDATA *cd; |
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double d; |
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int i, j; |
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cd = (COLRDATA *)tms->pd[colrReg]; |
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< |
cd->clfb[RED] = 256.*tms->clf[RED] + .5; |
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< |
cd->clfb[GRN] = 256.*tms->clf[GRN] + .5; |
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< |
cd->clfb[BLU] = 256.*tms->clf[BLU] + .5; |
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< |
cd->clfb[EXP] = COLXS; |
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> |
for (i = 3; i--; ) |
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> |
cd->clfb[i] = 0x100*tms->clf[i] + .5; |
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d = TM_BRTSCALE*log(tms->inpsf); |
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cd->inpsfb = d<0. ? d-.5 : d+.5; |
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for (i = 3; i--; ) |
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for (j = 3; j--; ) { |
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d = tms->cmat[i][j] / tms->inpsf; |
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cd->cmatb[i][j] = 0x10000*d + (d<0. ? -.5 : .5); |
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} |
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} |
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