From: Timothy Miller <miller@techsource.com>
To: Jurriaan <thunder7@xs4all.nl>
Cc: David Eger <eger@havoc.gtf.org>,
linux-fbdev-devel@lists.sourceforge.net,
linux-kernel@vger.kernel.org
Subject: Re: accelerated radeonfb produces artifacts on scrolling in 2.6.7
Date: Thu, 17 Jun 2004 09:51:07 -0400 [thread overview]
Message-ID: <40D1A1CB.7090301@techsource.com> (raw)
In-Reply-To: <20040616195210.GA26935@middle.of.nowhere>
Jurriaan wrote:
>>Is this the case even with the off-by-one error in the bitblt code
>>fixed? In the 2.4 kernel, I got rid of all artifacts by fixing the
>>off-by-one error.
> You mean this code? I see (w-1) and (h-1) in there.
>
> if ( xdir < 0 ) { sx += w-1; dx += w-1; }
> if ( ydir < 0 ) { sy += h-1; dy += h-1; }
Yes, that's the code, and it's correct.
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WARNING: multiple messages have this Message-ID (diff)
From: Timothy Miller <miller@techsource.com>
To: Jurriaan <thunder7@xs4all.nl>
Cc: David Eger <eger@havoc.gtf.org>,
linux-fbdev-devel@lists.sourceforge.net,
linux-kernel@vger.kernel.org
Subject: Re: [Linux-fbdev-devel] accelerated radeonfb produces artifacts on scrolling in 2.6.7
Date: Thu, 17 Jun 2004 09:51:07 -0400 [thread overview]
Message-ID: <40D1A1CB.7090301@techsource.com> (raw)
In-Reply-To: <20040616195210.GA26935@middle.of.nowhere>
Jurriaan wrote:
>>Is this the case even with the off-by-one error in the bitblt code
>>fixed? In the 2.4 kernel, I got rid of all artifacts by fixing the
>>off-by-one error.
> You mean this code? I see (w-1) and (h-1) in there.
>
> if ( xdir < 0 ) { sx += w-1; dx += w-1; }
> if ( ydir < 0 ) { sy += h-1; dy += h-1; }
Yes, that's the code, and it's correct.
next prev parent reply other threads:[~2004-06-17 13:33 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-06-16 18:24 accelerated radeonfb produces artifacts on scrolling in 2.6.7 Jurriaan
2004-06-16 18:24 ` Jurriaan
2004-06-16 18:41 ` David Eger
2004-06-16 18:41 ` [Linux-fbdev-devel] " David Eger
2004-06-16 19:55 ` Timothy Miller
2004-06-16 19:55 ` [Linux-fbdev-devel] " Timothy Miller
2004-06-16 19:52 ` Jurriaan
2004-06-16 19:52 ` [Linux-fbdev-devel] " Jurriaan
2004-06-17 13:51 ` Timothy Miller [this message]
2004-06-17 13:51 ` Timothy Miller
2004-06-17 2:21 ` [PATCH] fix radeonfb panning and make it play nice with copyarea() David Eger
2004-06-17 2:21 ` David Eger
2004-06-17 5:19 ` Jurriaan
2004-06-17 5:19 ` Jurriaan
2004-06-17 5:35 ` David Eger
2004-06-17 5:35 ` David Eger
2004-06-17 5:47 ` David Eger
[not found] ` <20040618110450.GA2771@middle.of.nowhere>
2004-06-25 7:18 ` [PATCH] radeonfb: 16bpp accel broken. a work-around David Eger
2004-06-25 7:26 ` Andrew Morton
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