[RFC] drm: add overlays as first class KMS objects

Jerome Glisse j.glisse at gmail.com
Tue Apr 26 08:11:07 PDT 2011

On Tue, Apr 26, 2011 at 10:16 AM, Alan Cox <alan at lxorguk.ukuu.org.uk> wrote:
>> having a list per hardware. uint32_t would give enough room to add all
>> formats even if one format is only supported by one hardware only (at
> It would indeed. A point realised by the Amiga designers in 1985 and
> turned into a standard of sorts with a registry and process and adopted
> by folks like Apple and Microsoft.
> See www.fourcc.org. 4CC is already used by the kernel for Video4Linux.

I think 4cc it bit useless with RGB stuff (or maybe i just don't
understand 4cc). For instance i think we want uniq different id for
RGB555, RGB565,RGBX8888, RGBA8888, BGRA8888 ... it seems 4cc just says
rgb and than rely on additional informations for color order or
components size.


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