[PATCH xf86-video-ati 0/3] Initial glamor and SI support.

Rafał Miłecki zajec5 at gmail.com
Tue Jul 10 05:06:29 PDT 2012

2012/7/10 Michel Dänzer <michel at daenzer.net>:
> The main purpose of these changes is to allow using this driver on SI hardware
> and playing with the (still quite limited) Gallium radeonsi driver in an X
> environment.
> Longer term, glamor might be interesting for older Radeons as well. Right now,
> its main drawbacks are missing XVideo support (shouldn't be hard to add to
> glamor), and occasionally quite annoying diagonal tearing.

Ups, I got lost. So do we drop idea of using xf86-video-modesetting
for SI? I though we want to use xf86-video-modesetting and some
Gallium state tracker for 2D acceleration.

What's the difference between handling 2D acceleration in:
1) xf86-video-ati
2) xf86-video-modesetting + X/Gallium?

Also one question for below:

> Defaults to shadowfb. 3D acceleration is available with glamor. 2D
> acceleration is disabled until the radeonsi driver can handle glamor's
> shaders.

Could you explain what is glamor? I was sure it is supposed to provide
2D acceleration using OpenGL. What do you mean by providing 3D
acceleration with glamor?


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