[maemo-developers] [maemo-developers] first impressions and some reports

[From: Daniel Monteiro]

Hey. I've made a small set of clases for fixed point
math (in C++) . Do you want to port it? I also
studying a assembler port of it.

eu estava estudando assembly de ARM faz um tempo,mas
agora estou meio sem tempo. final de periodo de
faculdade.

bem..preciso ir estudar =-)


--- Ruda Moura <ruda.moura at indt.org.br> escreveu:

> Gustavo Barbieri wrote:
> 
> > Hello,
> > 
> > Now that I have the maemo environment set up, I
> started to love this
> > thing!!! And python!
> > 
> > Thanks to Osvaldo and Ruda, I can run PythonCAD
> without any changes!
> > 
> > Also, my game tutorial (pt_BR) runs perfectly
> (just need to check the
> > perfomance on a real device, since it's side
> scroll and redraws the
> > screen every time):
> 
> 
> Hello Gustavo, thank you for your feedback!
> 
> >
> http://www.gustavobarbieri.com.br/jogos/jogo.tar.gz
> >    Could someone run "python2.4 jogo/a06/jogo.py
> -f -r 800x480" on a
> > real device and check if performance is an
> issue... if it can do at
> > least 30fps it's good enough. If it's ok I'll
> develop a game using
> > that engine. Also, it can be optimized a bit, I
> wrote it as an
> > educative project.
> 
> SHORT ANSWER
> 
> It run slow, about 15 ~ 20 fps and crashed with
> Segmentation fault at 
> the end (when ships goes to zero).
> 
> LONG ANSWER
> 
> It was visible slower than what was printed on
> screen (15 ~ 20 fps) but...
> You should think not in terms of PC, for a small
> device a game should 
> take modification in order to run fast. First I
> notice some calculations 
> with division ( like "something" / 16 ) and I change
> it to shifts ( >> 4 
> ). Why? Because I know 770 lacks division opcodes in
> CPU. well, it as 
> not a good improvement at all :)
> 
> The screen size *is* big, 800x480 is much data.
> People in this case 
> should consider resize the rolling image to a small
> size, put some 
> static pictures around, etc.
> 
> Maybe your code is good to teach OO but it isn't the
> best case for game 
> speed. For your information, here is what PyGame
> show me about my 
> display in Nokia 770.
> 
> > <VideoInfo(hw = 0, wm = 1,video_mem = 0
> >              blit_hw = 0, blit_hw_CC = 0,
> blit_hw_A = 0,
> >              blit_sw = 0, blit_sw_CC = 0,
> blit_sw_A = 0,
> >              bitsize  = 16, bytesize = 2,
> >              masks =  (63488, 2016, 31, 0),
> >              shifts = (11, 5, 0, 0),
> >              losses =  (3, 2, 3, 8)>
> 
> Again, thank you for your feedback and if you want
> to do more tests in 
> "the real thing" I'm ready to help you.
> 
> --
> Ruda Moura
> _______________________________________________
> maemo-developers mailing list
> maemo-developers at maemo.org
> https://maemo.org/mailman/listinfo/maemo-developers
> 


Daniel "NeoStrider" Monteiro
========================================
visite: http://www.makingthegame.tk no seu computador
ou http://tagtag.com/makegame no seu celular! 
========================================



	
	
		
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