X3100 performance issue

[Richard Goedeken]

> Date: Wed, 9 Jan 2008 16:27:12 +0800
> From: "Jin, Gordon" <gordon.jin at intel.com>
> Subject: RE: X3100 performance issue
> 
> Richard Goedeken wrote on Saturday, January 05, 2008 11:41 PM:
>> Thanks for the benchmark data.  There's definitely something wrong
>> with my setup.   I do get a certain error message when starting any
>> opengl program: 
>>
>> Failed to initialize TTM buffer manager.  Falling back to classic.
> 
> You might check https://bugs.freedesktop.org/show_bug.cgi?id=13922 and
> to see if your log has error for __driCreateNewScreen_20050727.
> 
> You are running with mesa master branch, right? If so you'd better also
> use master tip of xserver and xf86-video-intel.

I updated to the head of the xf86-video-intel driver and the mesa/dri software 
and tested again.  The performance seems to be quite a bit better, both the 
glxgears frame rate and the N64 emulator speed.  I still get the error message 
"Failed to initialize TTM buffer manager".

However now alpha blending appears to be broken.  When testing both in 
fullscreen and windowed mode, all or most of the output window will be covered 
by a black rectangle, with only one side or corner visible (or none at all 
visible).  Also in the emulator, for sprites which are rendered with an alpha 
channel to mask the opaque part of the sprite, the transparent part is rendered 
as black rather than transparent.

Richard