Denis Oliver Kropp wrote:
> Claudio Ciccani wrote:
>> Alex Lau wrote:
>>
>>> Denis Oliver Kropp wrote:
>>>
>>>
>>>> Claudio Ciccani via CVS wrote:
>>>>
>>>>
>>>>> CVSROOT:    /cvs/directfb
>>>>> Module name:    DirectFB
>>>>> Changes by:    klan    20060104 13:02:45
>>>>>
>>>>> Modified files:
>>>>>     src/misc       : gfx_util.c
>>>>> Log message:
>>>>> Completed support for YCbCr formats.
>>>>
>>>> Cool, time to add a new one then :)
>>>>
>>>> Just kidding, but I think AYCbCr (32 bit non-planar) would be nice.
>>>>
>>>
>>> Is the non-planar AYCbCr using the equation as YCbCr ?
>>>
>>> I don't even think video use A all ... does it?
>>> Are we just moving the ARGB's A over?
>>>
>>
>>
>> I think he is talking about the following format:
>>
>> http://fourcc.org/yuv.php#AYUV
> 
> Yes, it's for graphics layers when hardware doesn't support RGB at all.
> 

Yeah :) but I'm still not sure the non-planar, and if AYUV all get 8
bits then ... does it mean A in YUV is the same as A in ARGB? :)
If so that should be already done in utils?
Just wonder how does it really work?
Thanks

AvengerMoJo

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