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home :: oyranos :: net-color_2009.04.15.html
Wed, 15 Apr 2009
Net-color spec
After the successful
Google Summer of Code project of Tomas Carnecky at
OpenICC we have now a
nice spec for late colour binding on the desktop - read server side monitor
corrections. The spec is in the doc directory of Tomas' git repository.
Tomas tould us that the propriarity nvidia linux driver has probably a bug
preventing me from successfully running his work on a dual monitor system.
Fortunedly he was not right at this and I was able to model after his initial
work a second compiz plug-in for dual monitor colour correction of the complete
desktop. Its at the moment called colour_desktop.
The snapshot below shows the plug-in with two false colour profiles.
The left side monitor has a
linear sRGB profile assigned and the
right monitor profile has all primaries swapped:
The colour correction workload is for a unused desktop nearly zero and for a
running movie slightly noticeable. Of course this server side colour
management breaks all older colour managed applciations as there will a
double colour correction happen, the early colour binding in the application
and the late colour binding in the compiz plug-in. The spec of Tomas holds
the solution inside with a atom describing colour region on the server.
My colour_desktop compiz plug-in respects these regions and a small example
application does both early and late colour binding in one window.
The whole stuff is in Oyranos git and it will take a while until we can really
distribute stuff like this. First applications should have some time to update
to the new window atom under Linux. And second many API's under Oyranos need
more refinement.
The following link brings your to a more technical
post.
/oyranos | 2 comments | permanent link |