[Wayland]dither in order to convert 24 bit to 18 bit

Yang Andy williamyang13 at hotmail.com
Tue Apr 28 18:05:31 PDT 2015

Hi everyone

I have developed IVI product based on TizenIVI3.0.

There is a issue about screen quality because the Bitmap which is used to render screen is 24 bit,

but the display device only support 18 bit.

So i think it is necsssary to implement dither in order to convert 24 bit to 18 bit.

I use QT platform based on wayland to develop screen.

Could anyone give some advice on how to implement dither?Which module should be modified ?

Best regards,

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