Re: [Enigma-devel] Maemo Port for Nokia Internet Tablets - Performance

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----- Original Message ----- 
From: "Ronald Lamprecht" <address@hidden>
To: "Pipeline" <address@hidden>; <address@hidden>
Sent: Saturday, February 23, 2008 12:40 PM
Subject: Re: [Enigma-devel] Maemo Port for Nokia Internet Tablets - 
Performance


> Patch r1046 has just been a preliminary experiment to check the
> influence. I mailed yesterday the draft concept of a complete laser
> light reengineering. It mainly addresses the large number of
> inconsistencies in the current gaming logic concerning the laser light
> (see bug reports #11112, #9475,...). But of course it addresses the
> inefficiency of the laser beam drawing, too. You are right in your
> assumption that the current implementation redraws all grids with a
> laser beam on it on every frame with single change of laser light
> anywhere. I plan to redraw just those grids where the light did change.
> This should speed up the redraw on "Magic Triangle" by another factor of
> 3 - 4.

The r1046 patch improved performance in this level at least 300% so, yes 
even as a preliminary experiment, your algorithm "magic" is much appreciated 
:)  There is a gliimpse of future playability... also on every cycle which 
the block makes, when the lasers are triggered off, the fps rises to 60fps 
for that brief second and then back down to 3fps or so.

While I look forward to seeing you complete implementation, I was referring 
to animation of the laser stones themselves (st-laser-{n,e,s,w})... not the 
beams or calculations of any objects in their path.   The st-laser stone on 
which the beam 'begins' has its own (sprite?) animation which updates 
whenever the laser is on.  This level (Magic Triangle) has around 23 
st-laser stones being animated on every (paint/refresh).  Completely 
disabling this 'pulsing' animation (as a test) would have no impact on the 
simulation other than for artistic purposes.  Perhaps i will just try 
looking a little further into the source to find this animation and test 
this theory.  If anyone knows where this is in the code, i'd appreciate a 
short-cut :)

Also i previously stated sounds made no difference in performance.  That is 
only to say its not the current bottleneck on this Magic Triangle level.  I 
have not noticed a correlation with sounds and performance but i keep that 
in mind and if i find a level that benefits greatly from disabling sound (as 
Andreas mentioned), i will pass along.