Overlay video lack some of the right part

[AlienSoldier]

I have a PC with an onboard 3D rage xl PCI (this is an Intel entry level server). With VLC (the one that can run on R5) the video look stretched horizontally a bit and i miss something around 25%-30% of the right part of the video because of that.

Media Player does not have Overlay working for that card (or for any card i tested so far for the matter).

[diver]

FYI, you can disable video overlay in VLC in Window->Preferences->Video->General video settings->Overlay video output.

[AlienSoldier]

I know, or by launching 2 VLC in a row, the second one will use bitmap, but i want overlay badly :) (especially that it is almost there, just a scaling problem).

[AlienSoldier]

Good news! tested hrev46791 and the bug is gone. I have a small black square around the hand cursor in 24 bit (i don't have it in 16 bit) but i can live with that (would still be nice if that would be fixed as it would look more polished when demoing the OS).

[AlienSoldier]

I got happy too fast. Today i experienced the problem again but when i rebooted it was fine. I guess there is some register/flag that are electrically in random state because of a lack of proper initialization from the driver. Interestingly i can up scale with that video chip in overlay but not downscale (the window resizing block when i reach the native video size).

[AlienSoldier]

Looking at that again, it seem i miss 50% horizontally, so perhaps it is only a problem of double pixel size or wrote two time in a row.

[rudolfc]

AlienSoldier, Perhaps some screenshots (taken with a camera, lower res will do) will make things clearer. Sounds like a programming error in the gfx driver indeed. Also, please be aware that the exact error might become evident if you do some explicit tests:

• keep scaled at 1:1, to prevent scaling errors to kick in: draw window halfway outside screen at left, top, right and bottom (one at a time) and see how the visible part of the video progresses (still video, paused please)
• scale up to so 150% and redo the tests
• scale down to say 75% and redo the tests.

None of the above things goes well without explicit programming of the overlay card hardware. With these tests you'll notice most of the problems.

Currently I test overlay using VLC 0.86D since indeed mediaplayer does not work: probably due to missing translation options inside/attached to that player: overlay mostly uses one colorspace only in our drivers which mediaplayer apparanly does not support.

[AlienSoldier]

picture showing missing right part in overlay

[rudolfc]

Hi, thats a nice picture. So, actually, the problem seems to be that the horizontal scaling factor is set twice the value it should me. A result of that is the right horizontal part not fittling on the screen. I guess this is a fault that should't be to hard to fix. A picture is really helpfull indeed :-)