Display of Images on GTA-02

Iain B. Findleton ifindleton at videotron.ca
Wed Sep 10 18:35:46 CEST 2008

On my Freerunner, XGlamo does not appear to be a CPU hog, although in
light of the tickets mentioned I am going to check further on that. I do
notice that the machine slows considerably at times for no particular
reason. Top shows that pulseaudio is the main CPU hog, and I wonder why
that should be? I am not doing any sound stuff aside from the click of
the touch pad.

Is the source for XGlamo available at all? I recall reading something
about the chip internals not being public but I can probably spot bad
server code. I have another ARM box on which I run nano-X without
problems, and that is a 200 MHZ machine. Graphics is quite responsive
there, so the Freerunner should positively fly.

Thomas B. wrote:
> On Wed, Sep 10, 2008 at 10:42:12AM -0400, Iain B. Findleton wrote:
>> After doing some experiments which involve displaying an image on the
>> screen of the GTA-02 I have the impression that things are unduly slow.
>> The problem is to display a single image (jpg,png,gif) which is
>> currently in a file on the root file system. Image size is 570 x 420
>> pixels in 32 bit color. It appears to take several (~10) seconds to read
>> the image from the file and then display it on the screen. This is
>> incredibly slow for a 400 MHZ machine and I am wondering if others have
>> had similar experiences.
> Well, the performance of my Freerunner regularly breaks down because of
> [1]. Also [2] might be relevant for you.
> What does "top" say while the image is loading?
> Regards,
> Thomas
> [1] http://docs.openmoko.org/trac/ticket/1597
> [2] http://docs.openmoko.org/trac/ticket/1315
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Iain B. Findleton
Tel: 514-457-0744

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