Using OpenGL as a window manager

[Martijn Sipkema]

> Were there any more ideas on how to do the window transform transparent to
the
> app using standard OpenGL. For example app thinks it is drawing into a
> rectangle. xserver wants the image in a trapezoid. DRI is in use.

But do we need this? I'm not convinced transparent windows are
needed and this seems even less necessary. I think an application should
be able to draw to the framebuffer and know what the resulting pixels
will be.

Microsoft seems to be going for retained mode rendering and transformations
may be easier to do in that way, but I think that is a mistake. We should do
as
much as possible client side and I don't see any use in window transforms;
they just bring in a lot of unwanted complexity.

--ms