RE: Is there any work on supporting portrait mode?

2004-05-21 Thread Barry Scott
 -Original Message-
 From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf
 Of Tim Roberts
 Sent: 20 May 2004 17:54
 To: [EMAIL PROTECTED]
 Subject: Re: Is there any work on supporting portrait mode?
 
 
 Barry Scott wrote:
 
 I'm trying to get X to drive a display in portrait mode.
 But the only driver that seems to work is the nVidia code
 and the performance is terrible.
   
 
 
 Are you talking about a monitor that is able to change its beam 
 scanning, or are you talking about rotating a normal monitor, so that 
 the beam scans from top-to-bottom?  In the first case, almost any 
 graphics card should be able to set up a 768x1024 mode for a standard 
 monitor.  However, the second case requires a graphics chip that knows 
 how to scan its frame buffer differently.  I know of very few chips with 
 that ability, and a software simulation will always be unsatisfactory.

The application is to mount a Plasma screen on its side.

Which means the software simulation. We have tested on
Windows and the i810 driver costs about 20% extra on a
2.4GHz P4 CPU to run portrait and play a movie. So it is
possible to do reasonable cost. However using the ShadowBF
under X the performance is, as you say, unsatisfactory.

We have not found a portrait mode plasma screens yet, but
that seems like the solution we need to look for, we do not
want to use Windows.

Barry

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Re: Is there any work on supporting portrait mode?

2004-05-21 Thread Rafa Rzepecki
On Friday 21 of May 2004 16:58, Barry Scott wrote:
 The application is to mount a Plasma screen on its side.

 Which means the software simulation. We have tested on
 Windows and the i810 driver costs about 20% extra on a
 2.4GHz P4 CPU to run portrait and play a movie. So it is
 possible to do reasonable cost. However using the ShadowBF
 under X the performance is, as you say, unsatisfactory.

I believe there is a filter in MPlayer that rotates the movie. If the only 
thing to be shown rotated is a movie, you could consider using rotation in 
the movie player. However, I am not sure how efficient this is, so this needs 
testing.

-- 
Rafa Rzepecki
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Re: Is there any work on supporting portrait mode?

2004-05-21 Thread Alex Deucher
--- Rafa³_Rzepecki [EMAIL PROTECTED] wrote:
 On Friday 21 of May 2004 16:58, Barry Scott wrote:
  The application is to mount a Plasma screen on its side.
 
  Which means the software simulation. We have tested on
  Windows and the i810 driver costs about 20% extra on a
  2.4GHz P4 CPU to run portrait and play a movie. So it is
  possible to do reasonable cost. However using the ShadowBF
  under X the performance is, as you say, unsatisfactory.

I think some smi chips support rotation in hardware in xfree86.  I
don't recall which ones off hand.

Alex

 
 I believe there is a filter in MPlayer that rotates the movie. If the
 only 
 thing to be shown rotated is a movie, you could consider using
 rotation in 
 the movie player. However, I am not sure how efficient this is, so
 this needs 
 testing.
 
 -- 
 Rafa³ Rzepecki





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