Would you try setting a mutex for cmsOpenProfileFromXXX(). With success
this could be a solution for lcms. I would expect the slow part in the
computation of the transform, not in data i/o.
kind regards
Kai-Uwe Behrmann
--
developing for colour management
www.behrmann.name + www.oyranos.org +
-
From: Louis Solomon [SteelBytes] [EMAIL PROTECTED]
To: lcms-user lcms-user@lists.sourceforge.net
Sent: Tuesday, June 05, 2007 8:13 AM
Subject: [Lcms-user] cmsCreateTransform is not thread safe
Hi,
cmsCreateTransform is not thread safe using 1.16 or 1.17b. Note, using
cmsCreate_sRGBProfile
Subject: Re: [Lcms-user] cmsCreateTransform is not thread safe
Hi Louis,
Thanks for the report. Yes, you are right, cmsCreateTransform
is not thread safe if the involved profiles are file-based. That is
because files are not locked when readed. Currently, only
cmsDoTransform() is thread
Hi,
cmsCreateTransform is not thread safe using 1.16 or 1.17b. Note, using
cmsCreate_sRGBProfile() instead of
cmsOpenProfileFromFile(AdobeRGB1998.icc,rb) does work, and so does
calling the two cmsCreateTransform()'s in succession. Test env: 32bit debug
target built with VS2005 on
