[Trac #1017] swizzle and other DCON-related display problems

Zarro Boogs per Child bugtracker at laptop.org
Wed Mar 28 12:30:07 EDT 2007


#1017: swizzle and other DCON-related display problems
---------------------------+------------------------------------------------
 Reporter:  AlbertCahalan  |        Owner:  blizzard
     Type:  defect         |       Status:  reopened
 Priority:  normal         |    Milestone:  BTest-3 
Component:  hardware       |   Resolution:          
 Keywords:                 |  
---------------------------+------------------------------------------------
Comment (by vmb):

 Whoops, sorry, for "16-bit" please read "19-bit".  It started as 16 bits
 and then Mark added three more because some of us complained.

 As for the calculation, it's not what C would do (unless you started by
 casting the RGB values to shorts and shifting them left by four before
 shifting right again, I guess) -- I believe that the adder is wide enough
 that there is no truncation of the less-significant bits till after the
 sum is taken.

-- 
Ticket URL: <http://dev.laptop.org/ticket/1017#comment:8>
One Laptop Per Child <http://laptop.org/>



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