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#include <pam.h>
#include <lcms.h>
static int
pam_transform(struct pam *inpam, struct pam *outpam, cmsHTRANSFORM *hTransform);
int
main(int argc, char **argv) {
int c;
char *in_prof = NULL, *out_prof = NULL;
cmsHTRANSFORM hTransform;
cmsHPROFILE hInProfile, hOutProfile;
struct pam inpam, outpam;
while ((c = getopt(argc, argv, "i:o:")) != EOF) {
switch (c) {
case 'i':
in_prof = optarg;
break;
case 'o':
out_prof = optarg;
break;
default:
break;
}
}
hInProfile = cmsOpenProfileFromFile(in_prof, "r");
hOutProfile = cmsOpenProfileFromFile(out_prof, "r");
hTransform = cmsCreateTransform(hInProfile,
TYPE_RGB_16,
hOutProfile,
TYPE_RGB_16,
INTENT_PERCEPTUAL, 0);
pm_init(argv[0], 0);
pnm_readpaminit(stdin, &inpam, PAM_STRUCT_SIZE(tuple_type));
outpam = inpam; outpam.file = stdout;
pnm_writepaminit(&outpam);
pam_transform(&inpam, &outpam, &hTransform);
cmsDeleteTransform(hTransform);
cmsCloseProfile(hInProfile);
cmsCloseProfile(hOutProfile);
return 0;
}
static int
pam_transform(struct pam *inpam, struct pam *outpam, cmsHTRANSFORM *hTransform)
{
tuple *inrow, *outrow;
int row, col;
inrow = pnm_allocpamrow(inpam);
outrow = pnm_allocpamrow(outpam);
for (row = 0; row < inpam->height; row++) {
pnm_readpamrow(inpam, inrow);
for (col = 0; col < inpam->width; col++) {
int i;
unsigned short inpix[3], outpix[3];
for (i = 0; i < 3; i++) {
inpix[i] = (unsigned short) inrow[col][i];
}
cmsDoTransform(*hTransform, inpix, outpix, 1);
for (i = 0; i < 3; i++) {
outrow[col][i] = (sample) outpix[i];
}
}
pnm_writepamrow(outpam, outrow);
}
pnm_freepamrow(inrow);
pnm_freepamrow(outrow);
return 0;
}
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