A couple drivers support that but most do not. The reason why
is that it's generally a bad idea. If you change the XImage format
to 24bpp, many desktop applications will break. Also, performance
is sometimes slower than with 32bpp due to alignment issues. See
the Option "Pixmap" described in the man page on XF86Config. Note,
most drivers don't support this.
Mark.
On Fri, 30 Jan 2004, Subbiah wrote:
> Hi,
>
> I am getting the RGB value of the image in 24 bits. So I have Started my application
> in 24 bit color depth.
>
> I am planning to use the XPutImage function for displaying the RGB value of the
> images.
>
> My application reports the depth as 24 but the bpp ( bits per pixel ) as 32?.
>
> So for my Ximage, I need to append one bit of information to get them in 32 bits.
>
> Is there any way to set the bpp as 24, so that My overhead on the one bit appending
> on each RGB value will go off.
>
> Thanks.
>
> With Regards,
> L. Subbiah
>
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