[Lcms-user] Lcms2-2.4 release candidate - feedback

[Mark <de...@ci...>]

Hello,

I am working at a set of Cocoa Wrappers for LCMS. I started some months ago with lcms2 2.1. 
Just updated to lcms2 2.4rc1. Nice. I see some matrix shader transform bugs where solved in the meantime. 

I have around 10 tests involving transformation from sRGB to LAB / XYZ / some other profile and back, with different bit depths and flags.

All my tests, but one, run fine with 2.4rc1:

1)
sRGB built-in V4.3 -> Lab identity built-in V4.3
Flags: "cmsFLAGS_NOCACHE", "cmsFLAGS_NOOPTIMIZE"
Input format: TYPE_RGBA_FLT
Output format: TYPE_LabA_FLT

2) and back
Lab identity built-in V4.3 -> sRGB built-in V4.3 
Flags: "cmsFLAGS_NOCACHE", "cmsFLAGS_NOOPTIMIZE"
Input format: TYPE_LabA_FLT
Output format: TYPE_RGBA_FLT

3)
save resulting RGBA float image.

The image is corrupted. Sample attached.


Thx for this terrific library.

Kind regards
Mark