qcms_profile *
gfxPlatform::GetCMSOutputProfile()
{
if (!gCMSOutputProfile) {
NS_TIME_FUNCTION;
nsCOMPtr<nsIPrefBranch> prefs = do_GetService(NS_PREFSERVICE_CONTRACTID);
if (prefs) {
nsresult rv;
/* Determine if we're using the internal override to force sRGB as
an output profile for reftests. See Bug 452125.
Note that we don't normally (outside of tests) set a
default value of this preference, which means GetBoolPref
will typically throw (and leave its out-param untouched).
*/
PRBool doSRGBOverride;
rv = prefs->GetBoolPref(CMForceSRGBPrefName, &doSRGBOverride);
if (NS_SUCCEEDED(rv) && doSRGBOverride)
gCMSOutputProfile = GetCMSsRGBProfile();
if (!gCMSOutputProfile) {
nsXPIDLCString fname;
rv = prefs->GetCharPref(CMProfilePrefName,
getter_Copies(fname));
if (NS_SUCCEEDED(rv) && !fname.IsEmpty()) {
gCMSOutputProfile = qcms_profile_from_path(fname);
}
}
}
if (!gCMSOutputProfile) {
gCMSOutputProfile =
gfxPlatform::GetPlatform()->GetPlatformCMSOutputProfile();
}
/* Determine if the profile looks bogus. If so, close the profile
* and use sRGB instead. See bug 460629, */
if (gCMSOutputProfile && qcms_profile_is_bogus(gCMSOutputProfile)) {
NS_ASSERTION(gCMSOutputProfile != GetCMSsRGBProfile(),
"Builtin sRGB profile tagged as bogus!!!");
qcms_profile_release(gCMSOutputProfile);
gCMSOutputProfile = nsnull;
}
if (!gCMSOutputProfile) {
gCMSOutputProfile = GetCMSsRGBProfile();
}
/* Precache the LUT16 Interpolations for the output profile. See
bug 444661 for details. */
qcms_profile_precache_output_transform(gCMSOutputProfile);
}
return gCMSOutputProfile;
}
qcms_transform *
gfxPlatform::GetCMSInverseRGBTransform()
{
if (!gCMSInverseRGBTransform) {
qcms_profile *inProfile, *outProfile;
inProfile = GetCMSOutputProfile();
outProfile = GetCMSsRGBProfile();
if (!inProfile || !outProfile)
return nsnull;
gCMSInverseRGBTransform = qcms_transform_create(inProfile, QCMS_DATA_RGB_8,
outProfile, QCMS_DATA_RGB_8,
QCMS_INTENT_PERCEPTUAL);
}
return gCMSInverseRGBTransform;
}
