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#include <lcms.h>
#include "pnm.h"
static int
pam_transform(FILE *in_fp, FILE *out_fp,
const struct pnm *in_pnm, cmsHTRANSFORM *hTransform);
int
main(int argc, char **argv) {
int c, i, nProf = 0;
char *in_prof = NULL, *out_prof = NULL;
double gamma = 0.0, bright = 0.0, contrast = 1.0, hue = 0.0;
double saturation = 0.0;
int tempSrc = 5000, tempDst = 5000;
cmsHTRANSFORM hTransform;
cmsHPROFILE profiles[3];
DWORD type;
struct pnm in_pnm;
while ((c = getopt(argc, argv, "i:o:g:b:c:h:s:S:D:")) != EOF) {
switch (c) {
case 'i':
in_prof = optarg;
break;
case 'o':
out_prof = optarg;
break;
case 'g':
gamma = atof(optarg);
break;
case 'b':
bright = atof(optarg);
break;
case 'c':
contrast = atof(optarg);
break;
case 'h':
hue = atof(optarg);
break;
case 's':
saturation = atof(optarg);
break;
case 'S':
tempSrc = atoi(optarg);
break;
case 'D':
tempDst = atoi(optarg);
break;
default:
break;
}
}
if (in_prof) {
profiles[nProf++] = cmsOpenProfileFromFile(in_prof, "r");
} else {
profiles[nProf++] = cmsCreate_sRGBProfile();
}
if (gamma) {
LPGAMMATABLE gTable[3];
gTable[0] = cmsBuildGamma(256, gamma);
gTable[1] = gTable[2] = cmsBuildGamma(256, 1.0);
profiles[nProf++] = cmsCreateLinearizationDeviceLink(
icSigLabData,
gTable);
}
profiles[nProf++] = cmsCreateBCHSWabstractProfile(
10,
bright,
contrast,
hue,
saturation,
tempSrc,
tempDst);
if (out_prof) {
profiles[nProf++] = cmsOpenProfileFromFile(out_prof, "r");
} else {
profiles[nProf++] = cmsCreate_sRGBProfile();
}
if (readPnmHeader(stdin, &in_pnm) != 0) {
exit(1);
}
if (in_pnm.maxval == 255) {
type = TYPE_RGB_8;
} else if (in_pnm.maxval == 65535) {
type = TYPE_RGB_16_SE;
} else {
fprintf(stderr, "unsupported PNM maxval %d\n", in_pnm.maxval);
exit(1);
}
hTransform = cmsCreateMultiprofileTransform(
profiles,
nProf,
type,
type,
INTENT_PERCEPTUAL,
cmsFLAGS_BLACKPOINTCOMPENSATION);
writePnmHeader(stdout, &in_pnm);
pam_transform(stdin, stdout, &in_pnm, &hTransform);
cmsDeleteTransform(hTransform);
for (i = 0; i < nProf; i++) {
// cmsCloseProfile(profiles[i]);
}
return 0;
}
static int
pam_transform(FILE *in_fp, FILE *out_fp,
const struct pnm *in_pnm, cmsHTRANSFORM *hTransform)
{
int row, col;
int nbytes = in_pnm->maxval == 65535?2:1;
char *buf = malloc(in_pnm->width * nbytes * 3);
for (row = 0; row < in_pnm->height; row++) {
fread(buf, in_pnm->width, nbytes * 3, in_fp);
cmsDoTransform(*hTransform, buf, buf, in_pnm->width);
fwrite(buf, in_pnm->width, nbytes * 3, out_fp);
}
free(buf);
return 0;
}
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