Recent content by viciious

  1. viciious

    Doom 32X: Resurrection

    I've written a short paper on how Doom 32X Resurrection renderer works. Hopefully I'll be able to cover topics given time permits. Engine optimizations, part 1 · viciious/d32xr Wiki
  2. viciious

    SegaXtreme Cross-Platform FMV Competition

    Retroarch (the picodrive core) seems to work alright. Fusion has a 6MB limit for ROMs.
  3. viciious

    SegaXtreme Cross-Platform FMV Competition

    So you wrote two custom codecs, very nice! Adding bank switching support should be relatively easy if the frame header also contains the size information, should it would be possible to tell whether the chunk crosses over into the next page. Also, if you want to optimize it a bit further...
  4. viciious

    SegaXtreme Cross-Platform FMV Competition

    DamageX, I'd love to learn about the codec and settings that you used for your samples!
  5. viciious

    SegaXtreme Cross-Platform FMV Competition

    Hi everyone, here are my submissions for the Sega 32X. All samples were encoded using the RoQ codec and use the Sega Mapper (aka SSF Mapper) to break the 4MB limit for ROMs. All entries run fine on my Mega EverDrive Pro on real hardware. RetroArch seems to run most of the samples fine except...
  6. viciious

    32X variable bitrate audio proof-of-concept

    One obvious optimization would be removing all mallocs/free and memcpy calls. In my tests those have proven to be _extremely_ slow on real hardware. Unfortunately that would not be easy since the read callback relies on that you copy stream data into the provided buffer. Changing that would...
  7. viciious

    32X variable bitrate audio proof-of-concept

    You might also want to try optimizing your code to exploit the peculiarities of SH-2's pipeline that allow you to do 2 multiples in 5 cycles instead of 6. The SH2 has odd pipeline where one multiply cost 3 cycles, but if you start a second multiply it only cost 2 clocks more.
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