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DUGL Player 1.0 Alpha6 Release (Announce)

posted by Zyzzle, 18.06.2026, 10:40

> on the DUGLPLAY.CFG we have two fields linked to AR:
> - [AspectRatioList] : describing the list of possible AR the DUGL Player
> will allow to select/use
> - [DefaultAspectRatio]: which is the index of default Aspect Ratio used,
> for example here if you need "16:9:HD Video" as default one, you need to
> set it to 2
>
> [AspectRatioList]     ; Possible Aspect Ratios List
> [w:1..99]:[h:1..99]:[Name], ...
> 1:1:Square Grid,4:3:Standard Monitor,16:9:HD Video,3:2:Classic
> DLSR,9:16:Vertical Video,21:9:Ultrawide Monitor
> [DefaultAspectRatio]
> 2
OK, thanks for the clarification. I was unsure what [w:1..99] and [h:1..99] meant, but now I see there are three AR options to be set with [DefaultAspectRatio], so I can choose 1,2,or 3 at my leisure depending correct AR of the video or film material viewed in DUGL Player.

> 15-20% slow down is too much, you can reduce that by setting sampleRate to
> lower frequency, or selecting mono. Sound Driver could be further optimized
> by using MMX for up/downsampling. but this is currently a low priority
> todo.
At 640x480 at 1.5 Ghz I got about 28 fps with sound enabled, about 33 fps without any sound. At 3.4 Ghz, speeds increase to 70 fps without sound and 65 fps with sound. (This is without MTRRs set for LFB writecombining, which my Dell laptop with i5-8250 laptop can't set in DOS -- immediate hard system freeze when I try, perhaps due to USB boot or other embedded BIOS code which loads on top of DOS in bare metal).

> DUGL Library currently do not support bankswitched mode, but this could be
> implemented in futur. all rendering will happen inside a FLAT memory Surf
> as usually, then I need to implement the function that do copy to
> bankswitched VRAM.
Thanks for considering bankswitched mode in future. Flat memory model for direct bankswitched access will be almost like vidix in UNIX, on old 32-bit video cards like 3dfx Voodoo 3).

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