...or, you could encode the image sequence as an MPEG4 video stream, upload that to the Glamo and let *IT* do the playback for you, pushing the pixels into the framebuffer directly. :-)<br><br><div class="gmail_quote">On Fri, Jul 11, 2008 at 11:23 AM, <<a href="mailto:openmoko-devel-request@lists.openmoko.org">openmoko-devel-request@lists.openmoko.org</a>> wrote:<br>
<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"><br></blockquote><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
---------- Forwarded message ----------<br>From: Carsten Haitzler (The Rasterman) <<a href="mailto:raster@openmoko.org">raster@openmoko.org</a>><br>To: Timo Drick <<a href="mailto:timo@drick.de">timo@drick.de</a>><br>
Date: Sat, 12 Jul 2008 01:59:53 +1000<br>Subject: Re: Display images with a least 10 fps<br>On Fri, 11 Jul 2008 17:28:07 +0200 Timo Drick <<a href="mailto:timo@drick.de">timo@drick.de</a>> babbled:<br></blockquote><div>
... <br></div><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">> >>> Carsten Haitzler (The Rasterman) <<a href="mailto:raster@openmoko.org">raster@openmoko.org</a>></blockquote>
<div>... <br></div><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">> > so as such i suspect 2-3fps is all you will ever get. even given a very<br>
> > optimised pipeline. you basically have what is not a very fast cpu (it may<br>
> > be 400mhz, but the memory is single-datarate at 100mhz), and io bottleneck<br>
> > from cpu/ram to video ram.</blockquote><div>... <br></div><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">> > so basically.. you're about as fast as it gets on the freerunner.<br>
> ><br>
> ><br>
> Ok thanks for the detailed explanation. This save much testing time for<br>
> me and searching for other solutions.<br>
> The disk io is not my problem because the images streamed over network.<br>
> But i am not able to avoid the decoding and 16 bit resampling. So i have<br>
> to use smaller image and display size.<br>
><br>
> Is there a chance that the cpu usage for the transfer from ram to video<br>
> ram could be decreased if the video 3d acceleration is working?<br>
<br>
basically "no". it wont help. you still need to upload the image pixels - one<br>
way or another.<br>
<br>
--<br>
Carsten Haitzler (The Rasterman) <<a href="mailto:raster@openmoko.org">raster@openmoko.org</a>><br>
</blockquote></div><br>