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

[Nicolas Pomarède <npomarede@xxxxxxxxxxxx>]

Le 08/11/2019 à 23:34, Eero Tamminen a écrit :

> Nicolas, you've fixed IKBD emulation for some demos, any
> comments on detecting changed mouse handler?

Hi

there's no mouse-only handler, it's mostly about replacing the whole 
ikbd's ROM with a custom program.
In that case, when IKBD_Cmd_Execute is called, then it's quite likely a 
custom program was uploaded to ikbd's RAM and mouse/keyboard should be 
set back to their default hatari's behaviour.

Maybe that instead of changing line-A variables another solution could 
be to change IKBD_Cmd_ReadAbsMousePos to intercept the returned values, 
sync/scale them to the host and then really return the new absolute 
positions ?

This should work with all the tos, and even with game/demo that read 
mouse positions, because it's really like intercepting mouse at the HW 
level.

Nicolas



> > 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)
>
> Attached is updated patch which does that check and also fixes
> issues with the (already existing) mouse warping done on
> resolution switches.
>
> I changed warping to be done only when Hatari has/gets keyboard
> focus.  This fixes bad warping for Hatari windows that are covered
> by other windows, when using click-to-focus windowing policy.
>
> I couldn't come up any way to fix it for focus-follows-mouse
> windowing policy, as there's no portable method for finding out
> whether Hatari window is fully visible, so I just documented
> that in the manual page.
>
>
> > and maybe also add an option to disable this feature.
>
> It's behind the already existing --mousewarp option, which
> is enabled by default.
>
>
>      - Eero