Xgl server

[Allen Akin]

On Mon, Nov 15, 2004 at 12:10:43AM +0100, David Reveman wrote:
| If I'm not mistaken, GLX doesn't ensure that the contents of the back
| buffer is unmodified when the window is covered by another window. ...

That's true.

|                                                                ... This
| means that as the back buffer is used for pixmaps, exposures might
| destroy pixmap content.

That would be contrary to the GLX spec.  Pixmaps are supposed to be
unaffected by window-tree changes.  Pbuffers, on the other hand, may be
volatile if their creator doesn't request that they be preserved.

Allen