Re: [Lcms-user] Question about CreateMultiProfileTransform in combination with Proofing and InkLimiting

[Wolfgang H. <lcm...@pj...>]

Hi Marti,

sorry for late response. I will wait for the next update. Will it be  
something between 1.18 and 2.0 or 2.0?

Thanks for help and
regards,
Wolfgang


Am 09.09.2009 um 15:50 schrieb mar...@li...:

>
>>> The Error #3000 "Invalid PCS" raises by calling   
>>> "cmsCreateMultiprofileTransform".
>>> If I create same kind of transformations from RGB to CMYK or  
>>> from  CMYK to CMYK, there raises no error.
>>> Is this in v1.18 or later the same?
>>> What I do wrong and what could be a solution?
>>
>
> Congratulations. You have uncovered a genuine bug, which has been  
> there
> from very early stages of lcms. I suspect that's because a devicelink
> holding XYZ -> CMYK is pretty unusual. The issue is about this  
> particular
> configuration, that resembles an output profile enough to confuse  
> the logic
> of the algorithm. This can be fixed modifying  cmsxform.c, line 1879:
>
> From:
>
>        if (lIsInput) {
>
> To:
>
>        if (lIsInput || lIsDeviceLink) {
>
>
> Next release will have it fixed.
>
> Thanks for hunting the bug.
> Regards,
> Marti