yuv images?

[Mattias Blomqvist nokia com]

Hello

As i understand it, a GdkImage with the type set to GDK_IMAGE_SHARED is a
XImage using shared memory segments to transfer it through the X-server to
the hardware. Is this correct? If it is, what about XvImages (images that
uses the yuv colorspace) using shared memory segments? XvImages are to my
knowledge supported in X11R6.4 and XFree86 4.0 and make it possible to use
hardware to do the conversion from yuv->rgb.

Thanks in advance
Mattias Blomqvist