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.
... and some hardware doesn't either.
Thomas
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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