Messages in this thread | | | Date | Fri, 5 Jul 2013 15:09:42 +0200 | Subject | Re: [PATCH v2 00/14] Platform Framebuffers and SimpleDRM | From | David Herrmann <> |
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Hi
On Thu, Jul 4, 2013 at 7:48 PM, H. Peter Anvin <hpa@zytor.com> wrote: > On 07/04/2013 05:25 AM, David Herrmann wrote: >> >> - What FB formats are common on x86 that we should add to >> SIMPLEFB_FORMATS? >> (other than ARGB/XRGB32) > > > The common pixel formats on x86 are: > > - Palettized 4-bit planar (bigendian, i.e. MSB to the left) > - Palettized 8-bit packed (one byte per pixel)
Unlikely to be supported with DRM. But if users want it, we can always add a shadow-buffer and advertise it as RGB332 or alike. Otherwise, they have to use fbdev as usual, which sounds reasonable to me.
> - 16-bit RGB555 (16-bit littleendian words with R=14:10, G=9:5, B=4:0)
DRM_FORMAT_XRGB1555
> - 16-bit RGB565 (16-bit littleendian words with R=15:11, G=10:5, B=4:0)
DRM_FORMAT_RGB565
> - 24-bit RGB888 in littleendian order (first byte in memory is B, > second is G, third is R)
DRM_FORMAT_RGB888
> - 32-bit ARGB8888 (first byte in memory is B, second G, third R, fourth > unused in the framebuffer proper)
DRM_FORMAT_ARGB8888
> - 32-bit RGB10:10:10 (I *believe* 32-bit littleendian words with > R=29:20, G=19:10, B=9:0)
DRM_FORMAT_XRGB2101010
Thanks for the hints, I will add these to patch #5. David
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