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Sir_Lucas
CVPPC &BVPPC and working overlay - is it possible?
Posted on: 2008/5/21 13:23    #1
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I was just wondering, is it possible to create a fully working overlay under
CVPPC&BVPPC? AFAIK it would speed up fantastic DvPlayer a lot :)

Overlay works under OS3.9, so what is the main obstacle not to have it under OS4 classic?
Just a thought.
Thank you for the answers in advance.
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Lokaty
Re: CVPPC &BVPPC and working overlay - is it possible?
Posted on: 2008/5/21 23:30    #2
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@Sir_Lucas

Hello ... ;)

I think it's can be done like hack becouse Permedia2 on BVision (CVision maybe done this using hardware functions but that is unconfirmed information...) have not an hardware 2D overlay - If you look at video played using AMP or another video viewer (with overlay ofcoz) you can notice drowing triangles - this hack is taken from 3D drawing from this chipset. Well, I think if this can be implemented in OS4 only when that will be full OS frendly - in CGX it's none 100% soft-hard cooperate. On my machine (A1k2+BPPC+BV) using this option I have often system freez - it's fast but not stable.

PS (in polish ;) )

Fajny koteczek!! ;D
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Sir_Lucas
Re: CVPPC &BVPPC and working overlay - is it possible?
Posted on: 2008/5/22 10:24    #3
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@Lokaty

Thank you for the answer. So it seems that having an overlay on A4000 with CVPPC might be a little bit easier than on BVPPC.

Would it be possible to use the new 3D wrapper whilst creating an overlay under OS4? Or would that require some kind of a hacking again?

PS. Dzieki. :D
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Lokaty
Re: CVPPC &BVPPC and working overlay - is it possible?
Posted on: 2008/5/22 11:01    #4
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@Sir_Lucas

Quote:
So it seems that having an overlay on A4000 with CVPPC might be a little bit easier than on BVPPC.


Probably yes - but remember, this is only speculation and I can't confrim this.

Quote:
Would it be possible to use the new 3D wrapper whilst creating an overlay under OS4? Or would that require some kind of a hacking again?


Maybe this solve "problem", but I think that can't be compatible solution (to use WarpOS software using this overlay function becouse video layer is created by CGX not Warp3D).

Any suggestion??
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Sir_Lucas
Re: CVPPC &BVPPC and working overlay - is it possible?
Posted on: 2008/5/22 11:38    #5
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@Lokaty

So, let us think about it for a while... how does overlay work on mA1 and A1?
Does it use some kind of a special mechanism? If so, could this mechanism be converted or transited to OS4 classic?
Overlay on classic Amigas seems to be a little snag :) But I suppose it worth having it. It would really speed up the great DvPlayer :)

What do you think?


Edited by Sir_Lucas on 2008/5/22 12:42:00
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Lokaty
Re: CVPPC &BVPPC and working overlay - is it possible?
Posted on: 2008/5/22 12:05    #6
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@Sir_Lucas

Quote:

So, let us think about it for a while... how does overlay work on mA1 and A1? Does it use some kind of a special mechanism?


It's seems to be easier than you think. ;) This is part of Picasso96 (remember PIP function? This is equivalent of overlay in CGX... ). P96 use hardware features (in radeon or voodoo - this cards have hardware accelerated 2D video layer) into drivers for ATI and 3DFX.

Quote:
If so, could this mechanism be converted or transited to OS4 classic?
Overlay on classic Amigas seems to be a little snag :) But I suppose it worth having it. It would really speed up the great DvPlayer :)


To use this feature, driver must be changed or updated. But, who do this? On classic Amigas overlay is possible (i think so...) using MediatorPCI/Prometheus + Voodoo card.

I'm also think is worth to have it ... :)

PS.

I raz jeszcze moja lamana angielszczyzna ;P (sorry in polish ... ;) )
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Sir_Lucas
Re: CVPPC &BVPPC and working overlay - is it possible?
Posted on: 2008/5/22 12:50    #7
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@Lokaty

The fact is that I don't want to swap my CVPPC to Mediator or any other PCI solution. You may ask me why?
Because I want to run MorphOS as well on A4000TE and have an opportunity to compare these two systems.
I don't know whether Mos devs are going to serve us another update or not (probably not), therefore I'd like to a have fully pimped OS4 on classic Amiga.
Another point is that DvPlayer seems to be a masterpiece right now, thus overlay could take a full advantage of it.

Cheers. :)
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joerg
Re: CVPPC &BVPPC and working overlay - is it possible?
Posted on: 2008/5/22 14:42    #8
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@Lokaty

Quote:
On classic Amigas overlay is possible (i think so...) using MediatorPCI/Prometheus + Voodoo card.
Not only with a Voodoo card, it works with all gfx cards which support overlay, for example the Picasso IV as well. But the gfx chip used in the B/CVisionPPC doesn't have overlay support.
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Sir_Lucas
Re: CVPPC &BVPPC and working overlay - is it possible?
Posted on: 2008/5/22 14:48    #9
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@joerg

So is there a way to emulate it? Could we have any hopes for an overlay under C\Bvision? Maybe through some kind of an emulation of Warp3D or something like that?

Just a thought.
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joerg
Re: CVPPC &BVPPC and working overlay - is it possible?
Posted on: 2008/5/22 15:04    #10
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@Sir_Lucas

Quote:
Maybe through some kind of an emulation of Warp3D or something like that?
IIRC there is no Warp3D driver for Permedia2 included in the classic Amiga release of OS4.
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Sir_Lucas
Re: CVPPC &BVPPC and working overlay - is it possible?
Posted on: 2008/5/22 15:17    #11
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@joerg

Hmm...:(

So, is there a way to implement overlay for CV\BVision in OS4 for Classic Amigas?
Or any hope ? Or there's no point in doing that?
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ancalimon
Re: CVPPC &BVPPC and working overlay - is it possible?
Posted on: 2014/12/5 23:00    #12
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I have been trying to enable overlay using CVisionPPC on OS 4.1. Is there any news on this?
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SimplePPC
Re: CVPPC &BVPPC and working overlay - is it possible?
Posted on: 2014/12/7 8:57    #13
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It is possible to do something similar but it requires a programmer to actually do it.. and those are hard to find lately ...
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