Re: Pixmaps, I'm stupid

[Havoc Pennington <hp redhat com>]

"Lewin A.R.W. Edwards" <larwe larwe com> writes:
> So I looked a little deeper, and of course 1.x DOES have pixmaps. But
> how can I get into that opaque data structure? What's actually in
> there?
>
> Of course I can draw an RGB buffer into a pixmap, then copy the pixmap
> onto the screen, but I want to eliminate that step and render my
> content directly into the pixmap.

The pixmap is on the X server - the image data is not in your process.
It's across the network.

GdkImage represents client-side (in your process) image data. You can
draw to a GdkImage and then push that over to the server.
GdkImage is in a hardware-dependent format.

GdkRGB just converts 8-8-8 RGB into a GdkImage then pushes that to the
server.

Havoc