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Re: DScaler 4.2.3a

Posted on 2022-12-29, 13:56

This is not the issue here. DScaler supports Overlay for historical reasons and Direct3D9 surfaces. It just defaults to overlay. When set to DirectX it actually means that it uses the Direct3D9 surface and it should work fine. With the complete system freeze I suppose it is some issue with the …

Re: VGA Capture Thread

Posted on 2022-07-13, 02:10

If we're only talking graphics vs text mode, how about training a neural net to detect whether it's looking at a DOS prompt? I'm thinking text mode is typically starkly contrasted with graphics, and the AI check can probably run in real time. Ok. Though, there is not "the text mode". You can train …

Re: VGA Capture Thread

Posted on 2022-07-12, 23:01

In principle yes, but there are a few issues to solve: Imagine you have a nearly empty DOS text screen with just a prompt, or even just black. Then the algorithm has not much data to determine the correct number of horizontal samples. If you run the analysis algorithm permanently you could change …

Re: VGA Capture Thread

Posted on 2022-07-12, 20:21

We had this discussion here as well, about e.g. distinguishing between 640x400 and 720x400. Also that basically every TFT shows 640x400 as 720x400 double sampling every ninth pixel. At the moment I'd say the best approach is, if you know which one it actually is to allow only one of it for the 400 …

Re: VGA Capture Thread

Posted on 2022-07-11, 23:27

that's just par for the course with VGA capture, every resolution on every system needs it's own little adjustments... the really neat thing with using VCS for example is that you can set trigger modes to automatically select presets so it switches to the correct settings on any given resolution... …

Re: VGA Capture Thread

Posted on 2022-06-16, 23:15

I found two more cards which might or might not have any potential. Anyone got experience with Epiphan DVI2PCIe? https://www.epiphan.com/wp-content/uploads/2015/06/epiphan-dvi2pcie-brochure.pdf I wrote an align and VGA bandwidth measurement tool for it in 2016: https://www.vogons.org/viewtopic.php …

Re: List of video card tech demos

Posted on 2022-05-31, 19:11

in Milliways
@BEEN_Nath_58: I have quite a few of the demos mentioned that have no links on my ftp at ftp://retronn.de/demos There are subfolders for 3dfx, nvidia, amd and also e.g. Rendition. You can create a https:// link if you write instead https://retronn.de/ftp/ There is also some stuff to be found that is …

Re: SoftMPU project needs your help! (game & sound card testing)

Posted on 2021-09-03, 08:29

in SoftMPU
I have currently no setup with 386MAX, though if you try then change the memory manager detection part to be skipped and default to the EMM386 way. If it is fully compatible then this should do. If that works we have to adapt the memory manager detection a bit. It would also helpful to know which …

Re: Nexgen - the 486 killer - WIP

Posted on 2021-08-19, 17:22

Nice NexGen System. Where did you connect the Sanyo CDR-H94RSA SCSI CD-ROM drive? I don't see a SCSI controller card in your system pictures. Do you use some kind of SCSI <-> IDE converter on the Promise Controller? What is your experience with other graphics cards in this system? With my ET4000W32 …

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