From: Franck Bui-Huu <vagabon.xyz@gmail.com>
To: Paulo Marques <pmarques@grupopie.com>
Cc: Franck <vagabon.xyz@gmail.com>,
Miguel Ojeda <maxextreme@gmail.com>,
akpm@osdl.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 2.6.19-rc1 full] drivers: add LCD support
Date: Tue, 31 Oct 2006 09:10:59 +0100 [thread overview]
Message-ID: <45470513.4070507@innova-card.com> (raw)
In-Reply-To: <4545FCB1.8030900@grupopie.com>
Paulo Marques wrote:
> Franck Bui-Huu wrote:
>> Miguel Ojeda wrote:
>>> [...]
>>> Anyway, an animation of 10 Hz wouldn't be fine at this
>>> kind of LCDs, so it is pointless which the refresh rate of the driver
>>> is, as it is not useful to display images as fast as the driver
>>> refresh the LCD.
>>
>> An application might want to display quickly a set of images, not for
>> doing animations but rather displaying 'fake' greyscale images.
>
> To do "fake" greyscale you would need to synchronize with the actual
> refresh of the controller or you will have very ugly aliasing artifacts.
>
> Since there is no hardware interface to know when the controller is
> refreshing, I don't think this is one viable usage scenario.
>
eh ?? Did you read my email before ? That was the point I was trying
to raise... and starting the refresh stuff _only_ when the device is
mmaped seems to me a good trade off.
Aynywas it seems that the discusion about the design is closed and
won't lead to interesting things...
bye
Franck
next prev parent reply other threads:[~2006-10-31 8:10 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-10-13 2:32 [PATCH 2.6.19-rc1 full] drivers: add LCD support Miguel Ojeda Sandonis
2006-10-13 12:43 ` Paulo Marques
2006-10-18 14:55 ` Franck Bui-Huu
2006-10-23 8:41 ` Franck Bui-Huu
2006-10-23 12:56 ` Miguel Ojeda
2006-10-23 15:35 ` Franck Bui-Huu
2006-10-23 16:21 ` Miguel Ojeda
2006-10-23 16:51 ` Franck Bui-Huu
2006-10-26 14:45 ` Miguel Ojeda
2006-10-27 20:08 ` Franck Bui-Huu
2006-10-27 20:38 ` Miguel Ojeda
2006-10-30 8:43 ` Franck Bui-Huu
2006-10-30 13:35 ` Miguel Ojeda
2006-10-23 16:05 ` Franck Bui-Huu
2006-10-23 16:08 ` Miguel Ojeda
2006-10-23 17:15 ` Franck Bui-Huu
2006-10-26 14:55 ` Miguel Ojeda
2006-10-27 20:03 ` Franck Bui-Huu
2006-10-27 20:25 ` Miguel Ojeda
2006-10-30 9:26 ` Franck Bui-Huu
2006-10-30 13:22 ` Paulo Marques
2006-10-30 14:11 ` Miguel Ojeda
2006-10-30 15:21 ` Paulo Marques
2006-10-30 17:32 ` Miguel Ojeda
2006-10-30 20:45 ` Paulo Marques
2006-10-31 8:10 ` Franck Bui-Huu [this message]
2006-10-31 14:12 ` Miguel Ojeda
2006-10-31 14:54 ` Paulo Marques
2006-10-30 13:47 ` Miguel Ojeda
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