nanogui@linuxhacker.org

: >From an examination of the code, I think that the problem lies with
: the buffering of mouse movements in drivers/mou_ser.c. When the mouse
: is read by GdReadMouse() it can leave data in the buffer which will
: not be processed until the next time the mouse is physically moved.
: I have made the following change to nanox/srvevent.c and mwin/winevent.c
: which causes all buffered data to be processed whenever a mouse event
: occurs. This appears to fix the problem (I suspect that the only reason
: I saw it in the first place is that the Prisma is very slow at displaying
: bitmaps so mouse movements could get ahead of the cursor display updates).
: 

What version of Microwindows are you running?  Microwin or Nano-X
API?  I changed an if statement to a while loop in the main GsSelect()
code that also might help with this.

Thanks for the patch.  I don't use the direct serial driver much, so I haven't
seen this, although the above fix was implemented for slower systems running
the 3d demo....

After I hear from you in regards to the version you're running, I'll probably
add this patch.

Regards,

Greg


: George Harvey
: fr30@dial.pipex.com
: 
: 
: *** srvevent.orig.cTue Feb 29 22:14:57 2000
: --- srvevent.cTue Feb 29 22:16:10 2000
: ***************
: *** 100,114 ****
:      intmousestatus;/* latest mouse status */
:   
:      /* Read the latest mouse status: */
: !    mousestatus = GdReadMouse(&rootx, &rooty, &newbuttons);
:      if(mousestatus < 0) {
:         GsError(GR_ERROR_MOUSE_ERROR, 0);
:         return FALSE;
: -    } else if(mousestatus) {/* Deliver events as appropriate: */
: -       GsHandleMouseStatus(rootx, rooty, newbuttons);
: -       return TRUE;
:      }
: !    return FALSE;
:   }
:   
:   /*
: --- 100,113 ----
:      intmousestatus;/* latest mouse status */
:   
:      /* Read the latest mouse status: */
: !    while ((mousestatus = GdReadMouse(&rootx, &rooty, &newbuttons)) > 0) {
: !       GsHandleMouseStatus(rootx, rooty, newbuttons);
: !    }
:      if(mousestatus < 0) {
:         GsError(GR_ERROR_MOUSE_ERROR, 0);
:         return FALSE;
:      }
: !    return TRUE;
:   }
:   
:   /*
: 
: 
: 
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