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  1. #11
    Registered User setTopbox's Avatar
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    Might I suggest that everyone rush over to the boxee/xbmc forums and encourage the devs to get to work on a PS3 port ASAP?

    This was the only reason some of the XBMC dev's claimed there would never be a PS3 port.

  2. #12
    Contributor Coolie4's Avatar
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    Quote Originally Posted by semitope View Post
    Why isnt there 3d access to the rsx in linux? whats the security benefit?
    Protection against pirated games. what else

    Linux is able to read burned games, whereas GameOS is not.
    Only problem is that linux cannot play any 3d games because its not fast enough (hypervisor).

    ARGGGG

  3. #13
    Registered User setTopbox's Avatar
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    Quote Originally Posted by Coolie4 View Post
    Protection against pirated games. what else

    Linux is able to read burned games, whereas GameOS is not.
    Only problem is that linux cannot play any 3d games because its not fast enough (hypervisor).
    I'm not sure if blocking off the RSX was for piracy. Even if you could access the graphics card in linux, it doesn't help you run unsigned code under GameOS.

    Some people have said it was to prevent any competing games from poping up on the linux side. But even that is kind of ridiculous, how many people are going to play tux racer instead of wipeout

  4. #14
    Registered User kengreen's Avatar
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    Mesa 7.5 or DirectFB

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    There is also some work on a cell driver for DirectFB at code.google.com/p/ouros. I would be interested in a comparison of these two approaches to accelerated linux video on the PS3. Both would appear to link to SDL and GTK, popular graphics libraries.

  5. #15
    Registered User RexVF5's Avatar
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    Quote Originally Posted by semitope View Post
    Not very likely. Maybe some ps1 level games but the cell is not going to do CPU work AND GPU work to the point where it would you could play a ps2 emulator with any satisfactory smoothness. Unless i am not comprehending the awesomeness of the cell in the ps3 well
    I think that is actually the case - you are underestimating the power of SPUs. Read about how much of a performance people got from it in various areas - decoding/encoding video, cipher attacks, ...

    I already made the comparison: today's GPUs are basically fixed-function vector engines (vendors are trying to escape this by things like CUDA). SPUs are precisely the same - highly performing programmable(!) vector processors. So I (and it seems smart guys at Mesa/Gallium) believe the SPUs can easily take the function of GPU without sweating.

    Quote Originally Posted by gaferion View Post
    I wonder how soon the different linux distributions will get this in their repositories. I haven't played around with Linux on the PS3 recently, but with wireless controllers working and now 3D acceleration it may be time to get it setup again with emulators to test it out.
    I think it will take some time (at least to Mesa 7.5.1 as stated in release notes) to be generally usable ad well integrated. But it's coming.

    Quote Originally Posted by gaferion View Post
    What I would like to know is how many SPUs will this utilize, and since there are multiple SPUs in the PS3 couldn't some be used for 3d acceleration and others for CPU power? Or maybe I don't have a good understanding of how they are utilized when booted in linux?
    AFAIU this is configurable - so you can use part of them for graphics and part of the for something else.

    Quote Originally Posted by kengreen View Post
    There is also some work on a cell driver for DirectFB at code.google.com/p/ouros. I would be interested in a comparison of these two approaches to accelerated linux video on the PS3. Both would appear to link to SDL and GTK, popular graphics libraries.
    I do not see anything like that there (only reference to FB) and to tell the truth what you wrote doesn't make much sense to me unless we're talking about 2D/3D acceleration. FrameBuffer means you have a part of memory that is directly mapped to video output (see [Register or Login to view links]) If you read the Cell driver release notes ([Register or Login to view links]) you will find that it is using FB. Cell/SPUs do the tricky math stuff required to compute the image but they put the calculated data into FB.

    "Accelerated graphics" in the title of this post means that specialized HW (SPUs) is used to compute (3D) graphics operations as compared to computation of general CPU (PPU in this case) which is called software rendering. Performance of the first approach should bring generally acceptable results while software rendering is (usually) too slow for any real-time usage.
    Last edited by RexVF5; 07-21-2009 at 06:49 PM Reason: Automerged Doublepost

  6. #16
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    Ubuntu 9.04 -> 9.10 FAILED

    I tried to update to 9.10 Alpha 2 but the upgrade process failed... I think I'll just wait a little bit more to install the new 9.10 Karmic on my PS3!

    In the meantime if anyone has some results please post them here so we know what to expect from this. Is it usable? Does it work out of the box?

    Before I rebooted (and My PS3 died with a lot of beeps and no error messages) I tried some GLScreensavers... They seemed a little bit faster but no real improvement... maybe I got my hopes real high... or even the driver wasn't really active... Who knows... i'll tinker with it if I manage to update my machine successfully!

  7. #17
    Registered User FunkyShadaloo's Avatar
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    Quote Originally Posted by RexVF5 View Post
    I think that is actually the case - you are underestimating the power of SPUs. Read about how much of a performance people got from it in various areas - decoding/encoding video, cipher attacks, ...
    This sounds really exciting but I still have to wonder about performance. PS3 devs get the GPU *and* SPUs to work with, where we'd have only SPUs and a software layer through Mesa to work with. Can we honestly expect to see 60fps performance out of this (to something of the quality of say Bionic Commando Rearmed? I don't expect homebrewn games even close to as good as inFamous).

  8. #18
    Contributor semitope's Avatar
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    Would be like running ps2 games through an emulator installed in winxp on a ps2 wouldn't it? Will be severely crippled and no way would there be ps3 games run on it. Even if linux could use the rsx most we would get are ps2 emulators, i think, in that situation.

  9. #19
    Registered User bloodring0909's Avatar
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    Smile

    Definitley keeping my the fingers crossed on this one, it will be so cool.

  10. #20
    Registered User despa's Avatar
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    I would guess that ethernet bandwidth isn't enough for this, but it would be interesting if one could create a ps3 cluster and use this.

 

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