I'm not familiar with xrandr, but for fullscreen we use the XVidMode
extension to change the display mode to that of the size of the window,
position the viewport at (0,0) then position the window at (0,0). This works
for us because we are using window sizes that are also common resolutions,
Not sure if this is the right place to report this but anyway;
xc/programs/XServer/hw/xfree86/drivers/ati/radeon_dga.c
Line 114: currentMode-imageHeight= (info-FbMapSize /
currentMode-bytesPerScanline);
On my Radeon IGP chipset with 64MB of VideoRam, this value is calculated as
65536
think it was in xf86dgastr.h.
Thanks,
James
On Mon, 17 Jan 2005 10:54:26 -0700 (MST)
Marc Aurele La France [EMAIL PROTECTED] wrote:
On Sat, 15 Jan 2005, James Wright wrote:
Not sure if this is the right place to report this but anyway;
xc/programs/XServer/hw/xfree86/drivers/ati
]
Subject: Re: DGA and tearing effects
On Sat, 27 Nov 2004, James Wright wrote:
My understanding is that flat panels do not scan a screen as a CRT
does, so there is no vertcial blank period to perform a page flip. They do
have a refresh rate of usually around 60Hz, but his is simply how
About a year ago I was using DGA for my games graphics library. I was told
by various people that using DGA was not the way to go. At first I thought this
was nonsense, as you can't get vsync using the more standard XPutImage method
(and get tearing). However, all changed when I bought a
Isn't DGA mode being phased out? I been using XPutImage and the XVidMode
extension to provide fullscreen instead. Only problem being you have no control
over when the image is actually copied to the display, so tearing results,
unless someone else here would like to enlighten me...
On
I have recently acquired a notebook and this is the first time I've tried an LCD
screen instead of a CRT display. I have some code that tries to find and set a DGA
display mode as part of a video initialisation function, and I have noticed that all
the modes returned by XDGAQueryModes() have
I totally agree with you that *something* needs to be done
to address this defficiency in XFree86. As mentioned in a previous
post a while back I am trying to write some 2d games for Linux but
require; fullscreen, direct access, vsynching, ability to change
the start of display offset (for
On Tue, 09 Mar 2004 09:40:07 -0800
Tim Roberts [EMAIL PROTECTED] wrote:
James Wright wrote:
It doesn't seem all that long ago that DGA V2 was added, why was it ever
introduced if it causes
grief for the driver writers? What where the original intentions of including the
DGA extension
On Wed, 10 Mar 2004 17:48:24 +0900
Carsten Haitzler (The Rasterman) [EMAIL PROTECTED] wrote:
no - i haven't measured it... BUT it isn't great. memory bandwidth isn't a big
positive of these devices. i'm almost certain it is the memcpy and context
switch as that really is the ONLY difference in
Hello,
Apologies if this is the incorrect list to post to but i couldn't decide between
the general forum
list or this one. My question concerns the DGA extension in XFree86, whether it will
be removed from
future versions, and the alternatives. We are currently in the process of developing
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