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Screen position on Pal Dreamcast
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Earny



Joined: 07 Nov 2005
Posts: 3
Screen position on Pal Dreamcast 

Hi all !
I've tried the release 0.8 and must say that the dreamcast port has progressed a lot. Thx a lot Marcus for your port!
Only one little thing is poor for me:

I tried it on a pal dreamcast, and the screen position is not well centered, the image is cut on the left border of the tv. Sometimes i can't see the start of the line, that is bad for an adventure game. So i've some questions about:

1) Is there a way to adjust the screen position ? (like in nesterdc for example)
2) is there a way to toogle screen refresh to 50hz?
3) what is the difference beetwen official release and Erwan or Metafox ones(faster? new things?i don't understand!)

I hope those little problems will be resolved in a next release (maybe Erwan or Metafox ones?). I wish that full throtlle will be completable in a near future too Wink

thx in advance , Bye

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Post Mon Feb 20, 2006 8:56 am 
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erwan



Joined: 31 Oct 2005
Posts: 40
Location: Bretagne, France
 


quote:
3) what is the difference beetwen official release and Erwan or Metafox ones(faster? new things?i don't understand!)


None ... I use source of the SVN


quote:
1) Is there a way to adjust the screen position ?

No


quote:
2) is there a way to toogle screen refresh to 50hz?

yes but it would have to be programmed



LIBRONIN support that
c_video.c:
code:
/* Set up video registers to the desired
   video mode
 
   in:
      cabletype  (0=VGA, 2=RGB, 3=Composite)
      pixel mode (0=RGB555, 1=RGB565, 3=RGB888)
      tvmode     (0 = off, 1 = on)
      res        (0 = 320 x 240, 1 = 640 x 240, 2 = 640 x 480)
        hz50       (0 = 60Hz, 1 = 50 Hz)
        pal        (0 = NTSC, 1 = PAL, 2 = PALM, 3 = PALN)
        voffset    (vertical offset of screen in TV mode. Added to the
                    base offset.)
*/
void dc_init_video(int cabletype, int mode, int tvmode, int res,
                   int hz50, int pal, int voffset)




and look syscalls.c
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Post Sat Feb 25, 2006 11:14 am 
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Jolly



Joined: 11 Aug 2006
Posts: 5
 

For those of us who run in fear every time they had to edit code, would it be possible a select refresh rate/cable type screen before loading ScummVM? Sorry if it's an stupid question, but I'm out of knowledge about DC programming - just bought one last week Wink

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Post Fri Aug 11, 2006 2:11 am 
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fabellian



Joined: 17 Mar 2006
Posts: 19
 

Can't we modify the ini file
to adjust the screen position ??? Laughing

I'm just asking, I'm fucking dummies in all that stuff Sad

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Post Wed Nov 15, 2006 4:44 pm 
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Mon1018
Spammer


Joined: 26 Jan 2008
Posts: 8
 

sorry,, no ideas. Sad

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Post Sat Jan 26, 2008 5:05 am 
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fingolfin
Retired


Joined: 21 Sep 2005
Posts: 1466
 

There is no way (as far as I know) you can edit any of these settings in the DC port short of editing the source code and compiling your own version.

There is an old feature request for PAL support (see https://sourceforge.net/tracker/index.php?func=detail&aid=921889&group_id=37116&atid=418823) but Marcus never even commented on this. You may want to contact him directly via email, and repeat your question there (possibly reminding him about this URL/feature request, too).

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Post Sat Jan 26, 2008 6:29 pm 
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