Getting the intel 915 3D engine to display something with OUT_RING commands only

[Tom De Man]

Hi,
I'm still in trouble with a demonstrator I have to make to get the 3D
engine from the intel 915 to run and display anything using only
OUT_RING() commands after everything has been set up (2D works).
I've tried a different approach this time: I took a linux box and
recompiled the X server driver xf86-video-intel. I noticed the function
I830SubsequentSolidFillRect() being called periodically, so I added some
OUT_RING() commands there that hopefully will show something in 3D.
My 2D code I added there worked as expected: a rectangle is drawn
regularly at (300,300) as requested.
I took the code from i915_render.c and added it there also (with some
fixed parameters) but nothing on screen (no rectange as expected).
If someone would like to help me, please let me know. I can send you my
modified i830_accel.c then, I don't think it's appropriate to post it here
right away. I can ask my boss for a little compensation, I've seen a post
here recently with a paypall incentive that seemed to do well (don't know
if it was because of the paypall award or not).

Kind regards,
Tom

-----Original Message-----
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Sent: dinsdag 19 juni 2007 10:43
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Subject: xorg Digest, Vol 23, Issue 90

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Today's Topics:

   1. Re: i830 problems with xf86-video-intel-2.0
      (Gilles Dartiguelongue)


----------------------------------------------------------------------

Message: 1
Date: Tue, 19 Jun 2007 10:41:11 +0200
From: Gilles Dartiguelongue <dartigug at esiee.fr>
Subject: Re: i830 problems with xf86-video-intel-2.0
To: David Bronaugh <dbronaugh at linuxboxen.org>
Cc: xorg at lists.freedesktop.org
Message-ID: <1182242471.3580.8.camel at boulix.republique.smartjog.lan>
Content-Type: text/plain; charset="utf-8"

Le lundi 18 juin 2007 ? 17:27 -0700, David Bronaugh a ?crit :
> I'll put in a "me too" on this one. I'm running Debian Sid. I upgraded 
> to the Intel 2.0 driver, and so far:
>  - Xinerama does not work (causes segfault in the X server)
>  - I can't use the panel integrated into my laptop (ie, the LFP 
> connected via LVDS does not work)
>  - When I connect a 17" LCD to my laptop, it works at native res
> (woohoo!) but for unknown reasons only 1024x768 of it is usable for 
> programs (I'm using ratpoison, and the remainder of the screen is the 
> usual X stipple pattern)
connecting a 17" LCD works nicely here up to native resolution of the LCD.
I can even use the area properly and the styleto still points to the good
area (which is very nice :)). But at the same time, the internal panel
goes all stripey ! (see
http://evasdk.free.fr/2007-05-23--08.31.40/IMG_4290.JPG)

>  - When DPMS engages, it shuts down the external CRT like it should; 
> however, when I create X activity to restore the display, the display 
> comes back up (backlight fires up; display's getting signal), but the 
> display is black. Switching to console and back fixes this.
(not testing this yet)

> I've attached the video BIOS for my laptop.
Unfortunately, it still doesn't want to dump the BIOS on mine. Here is an
updated xorg log in case it helps.
--
Gilles Dartiguelongue <dartigug at esiee.fr>
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