8bit rtg fullscreen wrong colors

[thomas]

When choosing uaegfx:800x600 8bit as screen mode, the colors are all wrong. Looks like red, green and blue are mixed up when reading the palette.

Windowed display is ok. Truecolor fullscreen is ok, too.

[thomas]

Interesting enough, running prefs/Palette corrects the colors. But then they are wrong in windowed mode. RGB then mixed in the other direction (i.e. blue sky is green instead purple). Running Palette again corrects colors as before with fullscreen = purple sky.

[Bamiga2002]

What is that AmiDock-lookalike?

[Toni Wilen]

I can't duplicate. I tried multiple resolutions and both DD and D3D fullscreen. 8-bit RTG colors worked fine.

[thomas]

Originally Posted by Bamiga2002

What is that AmiDock-lookalike?

Self-written. Called WBDock. Runs on WB 1.2 and above.

Edit: added screenshot of wbdock on wb 1.3

[thomas]

Originally Posted by Toni Wilen

I can't duplicate. I tried multiple resolutions and both DD and D3D fullscreen. 8-bit RTG colors worked fine.

I don't use D3D and I don't use filters (if that matters).

A little more testing revealed that the problem only happens when screen switches to fullscreen RTG and colors are corrected whenever a palette entry is changed by AmigaOS.

- it does not happen if both native and RTG are set to fullscreen.
- if native is windowed and RTG is fullscreen, during boot when Workbench screen opens I see a purple background for a very short time and when the Workbench window appears with the wbpattern picture, colors are correct again
- if RTG is set to windowed and I press Alt-F12, colors appear wrong.
- if both are set to fullscreen and I press Alt-F12, windowed colors are correct, but if I press Alt-F12 again, fullscreen colors are wrong.

So it seems the wrong colors are only set when WinUAE restores colors from its internal buffer (if there is such), but colors are set correctly when changed by AmigaOS.

BTW, when colors are wrong in the green direction, it appears that red is missing completely. Could it be an endianess problem?

[thomas]

One more point to add: I tested it on two computers and it happens on both:

one has GeForce 8200 on XP-pro SP3 32bit and the other one Radeon HD 4800 on Vista-Home Premium SP2 64bit.

So it's probably not driver-related (IMHO).

[Fabie]

thomas,

there's no problem here on 800x600x8
it seems there's a problem with your WB installation
incorrect picture datatype or incorrect JPG datatype or something like that

[Toni Wilen]

Most likely it is emulation problem but it is difficult to fix without being able to duplicate it easily.

Since 1.6 or so RTG always uses selected native mode (16bit or 32bit), even in 8-bit RTG and internally converts colors and above problem can happen when internal palette is not updated for some unknown reason.

Does also ALT-TAB fix it? and if you enter and exit GUI?

[yaqube]

I experience exactly the same issue as Thomas has described (wrong colours when switching between the windowed and the full screen RTG mode). Used to work correctly in earlier version of the WinUAE (with the same hardfile configuration).

[thomas]

Does also ALT-TAB fix it? and if you enter and exit GUI?

No, neither Alt-Tab nor F12 fixes it.

[thomas]

Ok, here is one to recreate it: use expanded high-end quickstart option, then insert the attached ADF. When Workbench is ready, press Alt-F12. Background color changes from grey in windowed mode to red in fullscreen.

And this arises another issue: when you try to put a FFS ADF into DF0 with the high-end quickstart, it tells you that this disk needs 2.04 or above and changes to A1200 basic config.

Oh and just another one, Vista-related: the print key is captured by Windows before WinUAE gets it. On XP I get a screenshot of the Amiga display, on Vista I get a screenshot of the entire Windows desktop. (Does not matter in fullscreen obviously.)

Edit: please read Ctrl-F12 wherever I wrote Alt-F12 in all of my posts above

[Toni Wilen]

Originally Posted by thomas

Ok, here is one to recreate it: use expanded high-end quickstart option, then insert the attached ADF. When Workbench is ready, press Alt-F12. Background color changes from grey in windowed mode to red in fullscreen.

Thanks, perfect. It is bug when fullscreen, 8-bit RTG, 32-bit Display panel setting and "match depth" setting enabled. It incorrectly selects 16-bit mode but uses 32-bit mode colors..

And this arises another issue: when you try to put a FFS ADF into DF0 with the high-end quickstart, it tells you that this disk needs 2.04 or above and changes to A1200 basic config.

Will be fixed, I missed this when I added cd32 and others few betas ago..

Oh and just another one, Vista-related: the print key is captured by Windows before WinUAE gets it. On XP I get a screenshot of the Amiga display, on Vista I get a screenshot of the entire Windows desktop. (Does not matter in fullscreen obviously.)

It seems rawinput does not override printscreen under Vista+. Quick workaround added: take screenshot when key is released, not when pressed..