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Thread: German RadeonHD Hacker To Start R600 Gallium3D VDPAU

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  1. #1
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    Default German RadeonHD Hacker To Start R600 Gallium3D VDPAU

    Phoronix: German RadeonHD Hacker To Start R600 Gallium3D VDPAU

    Christian König, the independent German developer who's known for being the first to provide open-source Radeon HDMI audio support back in the RadeonHD driver days and later to KMS, last October began working on R600 Gallium3D video acceleration. He quickly brought up XvMC R600g video acceleration when porting some of the earlier XvMC R300g work. While not yet merged to mainline, XvMC on R600 Gallium3D is usable, but now he's looking towards his next target: VDPAU support for the R600 Gallium3D driver...

    http://www.phoronix.com/vr.php?view=OTM4MA

  2. #2
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    "Video output of a 1920x1080 video now uses something around ~20% CPU time on my old test system, compared to ~50% with Xv, including all the nice features like overlay menu rendering for example (ok only working with mplayer right now, not xine)."
    That sounds great, and is more than I expected from XvMC. This would make most 1080p videos playable on a single core.

    Does anyone know how much work it is to enable this code? I lost track. It's in a separate branch, right?

  3. #3
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    Is he going to work on r300g or r600g? What about ATI Avivo?

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    He started on VDPAU a few weeks ago. He's not just starting now.

  5. #5
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    Yeah I second that

    You can see his work here from over a month ago

    http://cgit.freedesktop.org/~deathsi.../?h=pipe-video

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    Quote Originally Posted by NSLW View Post
    Is he going to work on r300g or r600g? What about ATI Avivo?
    He is working on r600g.

    -----------------

    I hope the xvmc code will get merged soon to master.

  7. #7
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    Quote Originally Posted by Nille View Post
    He is working on r600g.

    -----------------

    I hope the xvmc code will get merged soon to master.
    afaik a state tracker is supposed to work on all G3D HW

    why is this supposed to be limited to R600??

  8. #8
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    maybe because its only working on r600g currently? and you need some ddx changes.

  9. #9
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    Quote Originally Posted by NSLW View Post
    What about ATI Avivo?
    What are you asking?

    Code is here, by the way.
    http://cgit.freedesktop.org/mesa/mesa/log/?h=pipe-video

  10. #10
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    Quote Originally Posted by mattst88 View Post
    What are you asking?

    Code is here, by the way.
    http://cgit.freedesktop.org/mesa/mesa/log/?h=pipe-video
    Here is a snippet from Wikipedia about ATI Avivo
    "In decoding, the GPU core supports hardware decoding of H.264, VC-1, WMV9, and MPEG-2 videos to lower CPU utilization (the bitstream processing/entropy decoding still requires CPU processing). ATI Avivo supports vector adaptive de-interlacing and video scaling to reduce jaggies, and spatial/temporal dithering, enabling 10-bit color quality on 8-bit and 6-bit displays during process stage."

    I'm asking if anyone would take advantage of this features which are present in r500 hardware.

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