All display image formats

Paragon (1134)

10-02-2023, 14:04

Hi,

I have started to list all the image formats that can be displayed on MSX (I'm not speaking about file format but about display one).
This combines the different display modes of VDPs, as well as all the options that change their rendering (number of lines, interlacing, YJK color space, etc.)
The list can be found here:
https://docs.google.com/spreadsheets/d/17yFD38zRHwaj4CFK8Iuj...

Do you see any errors or omissions?

In fact, I'm planning to add to MSXgl some viewers for the most popular MSX image file formats, but I'm also thinking about creating my own format to store any kind of images we can create for MSX (especially images that use sprites - like the one below - or interlaced images).

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By Metalion

Paragon (1628)

10-02-2023, 17:07

Hi Aoineko,

Two remarks:
1) please include V9990 display modes in your list,
2) the ratio listed is a mathematical one, but it's not a graphical one (the pixels are not square).

Thanks!

By aoineko

Paragon (1134)

10-02-2023, 18:27

1) Yes, it's planned. See the "V9" bit of my format draft in the MGI tab.
2) Only 512 pixels wide resolutions have a different pixel size ration, right?

By aoineko

Paragon (1134)

11-02-2023, 11:59

V9990 image modes added to the list (in a dedicated tab).
I counted no less than 126 image display modes with this VDP.
https://docs.google.com/spreadsheets/d/17yFD38zRHwaj4CFK8Iuj...

By Grauw

Ascended (10820)

11-02-2023, 12:23

aoineko wrote:

2) Only 512 pixels wide resolutions have a different pixel size ration, right?

No, pixels are literally not square but slightly flat, a little wider than they are tall (not considering the high res modes whose pixels are half that width).

In NTSC the width / height ratio of a pixel is roughly 1.14, in PAL it is about 1.38.

See https://www.msx.org/forum/msx-talk/emulation/the-real-v99x8-...