Re: [Qemu-devel] [PATCH v5] showing a splash picture when start, seabios image for test

[Wayne Xia <xiawenc@linux.vnet.ibm.com>]

于 2011-7-5 2:31, Paul Brook 写道:
>>       jpeg decoder have its limitation, it only accept jpg file with
>> width=16*M, height=16*N.
>>       bmp decoder only accept 24bpp file, with a resolution that a video
>> mode could support. Recommended is 640x480(mostly used).
>
> Doing image decoding in the bios seems particularly pointless.  Why don't you
> just pass the bios raw image data?
>
> If you really want to directly support fancier formats IMO it makes much more
> sense to do that in qemu itself.  There we can use the same libraries as
> everyone else (libjpeg, libpng, etc) rather than badly reimpleenting them
> inside the bios.
>
> Paul
   I think the BMP file with 24bpp is almost the raw image data that
need just a little format adjusting in bios according to the video mode
it found.
    Jpeg and LZMA decoder are the old small functions that sea-bios
support, so I think user could use that format as an option.

-- 
Best Regards

Wayne Xia
mail:xiawenc@linux.vnet.ibm.com
tel:86-010-82450803