Re: [hatari-devel] Synching host mouse position to Atari mouse position

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Am Fri, 1 Nov 2019 00:09:45 +0200
schrieb Eero Tamminen <oak@xxxxxxxxxxxxxx>:

> Hi,
> I did small patch inspired by recent OSEX header being added to
> EmuTOS to support for synching host mouse position with TOS mouse
> position for Aranym...
> Attached patch syncs host mouse to Atari mouse position whenever
> mouse enters Hatari window and when window resolution changes.
> It requires line-A base to be known, which is the case when
> cartridge code is used, i.e. either GEMDOS HD or VDI mode is
> enabled (and that user hasn't disabled mouse warping).
> Otherwise things are as earlier.
> Is this something I could push to Hatari, or is not working
> without GEMDOS HD or VDI emulation too strange for users?

Looks dangerous. If a program takes over the full memory and uses its
own mouse handler, you might get completly wrong values from the ST
memory. If we really want to include such a thing (I'm really not sure
whether we should), you need to add more sanity checks here (e.g.
whether x and y is within range of the display) and maybe also add an
option to disable this feature.


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