[haiku] Re: VMW tools as (optional) package

  • From: Stephan Assmus <superstippi@xxxxxx>
  • To: haiku@xxxxxxxxxxxxx
  • Date: Sun, 01 Feb 2009 21:47:40 +0100

Vincent DUVERT <vincent.duvert@xxxxxxx> wrote:
> Le 26 janv. 09 à 15:18, holmqvist.fredrik@xxxxxxxxxxxx a écrit :
> > They are quite simple. Just look at the source. I think the wmvare 
> > mouse driver would benefit from using absolute
> > coords instead of relative.
> > They are currently in floating point 0 to 1.
> I started creating an input_server add-on for the vmware mouse (using the 
> "tablet" and "serial_mouse" add-ons as examples), I made it working but 
> there are still issues :
>   - Like you said, coordinates are floating numbers from 0 to 1, and  
> unfortunately the VMW backdoor returns the coordinates in pixel. So for 
> now I just use :
> float x = cursor_x;
> float y = cursor_y;
> x /= 1024.0;
> y /= 768.0;
> which is only working if the screen resolution is 1024x768, of course. I 
> suppose I could get the current resolution and detect resolution changes, 
> but support for absolute coordinates would probably be better.
>   - Haiku is receiving data from the (virtual) PS2 or USB mouse and  
> the VMW mouse at the same time, so the cursors flashes (and dragging does 
> not work very well).
> Disabling the "mouse" add-on is not an option, since the buttons status 
> is not sent by VMWare...
> I guess that I could write an input_server filter to make it ignore the 
> "mouse moved" events from the USB mouse, but this is going complicated...
> Perhaps a better option could be to directly patch the "mouse" add-on, 
> making it send absolute coordinates when it is running in VMWare and the 
> mouse is moved. It would also avoid polling the VMW backdoor constantly. 
> I will take a look....

Filtering out the non-vmware mouse moved events in an additional filter 
does sound like a clean solution to me. The input_server is being made 
aware of resolution changes AFAIR, maybe it could be extended to forward 
this info to add-ons, but perhaps there is already a mechanism existing. I 
seem to have a faint recollection of that.

Best regards,

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