Re: [MiNT] fVDI drawing bugs

[Eero Tamminen <oak@helsinkinet.fi>]

Hi,

Tester binaries and sources for demonstrating these issues can
be found from here:
	http://koti.mbnet.fi/tammat/hatari/devel.shtml#vditest
	http://koti.mbnet.fi/tammat/open.shtml#filler

VDI test package contains separate VDI testers which draw
something and advance to next test when you press a key.

If one runs them with normal TOS and fVDI side by side in
separate emulator instances, it's easy to see the issues.


Filler is small VDI game that demonstrates the line drawing
XOR mode issue and filled circle drawing issue.


	- Eero
	
On maanantai 10 syyskuu 2012, Eero Tamminen wrote:
> I ran the VDI testers I wrote for EmuTOS and noticed several
> additional things not working correctly with fVDI (in Aranym
> AFROS default 8-bit mode):
> 
> * VDI markers
>   - don't show up at all (or only as dots)
> 
> * VDI color query
>   - seems to return wrong RGB values
> 
> * VDI lines
>   - zero width lines don't have line endings (arrows etc),
>   - wider lines don't implement all line endings (round ones)
>   - arcs have gaps in them
> 
> * VDI circles
>   - Fill color is not always correct.
> 
> All these work in EmuTOS (in 1-4 bit modes supported by it).
> 
> See the attachments for couple of examples.
> 
> 
> For completeness sake here are also the issued I noticed / mailed
> about earlier:
> 
> * v_exit_cur() bus errors (it could be no-op)
> 
> * Line drawing in XOR mode doesn't always invert the drawing
>   (I have a suspicion that this could be Aranym VDI NatFEATS issue)
> 
> * v_clswk() doesn't do anything
> 
> 
> I'll put the the source code and binaries up later this week
> after I've finished some other things.
> 
> If somebody has non-NatFEATS version of latest fVDI, it would
> be nice to either get it or hear whether some of above ones are
> actually bugs in Aranym, not fVDI.
> 
> 
> 	- Eero