debian/patches/xi2-resize-touch.patch

   1 diff --git a/dix/touch.c b/dix/touch.c
   2 index a7ea213..1478e38 100644
   3 --- a/dix/touch.c
   4 +++ b/dix/touch.c
   5 @@ -460,12 +460,26 @@ TouchEventHistoryPush(TouchPointInfoPtr ti, const DeviceEvent *ev)
   6      if (ev->flags & (TOUCH_CLIENT_ID | TOUCH_REPLAYING))
   7          return;
   8
   9 +    if (ti->history_elements == ti->history_size - 1) {
  10 +        DeviceEvent *hist = NULL;
  11 +        size_t sz = ti->history_size * 2;
  12 +
  13 +        if (sz < 10000) {
  14 +            hist = realloc(ti->history, sz * sizeof(*hist));
  15 +
  16 +            if (hist) {
  17 +                ti->history = hist;
  18 +                ti->history_size = sz;
  19 +                memset(&hist[sz/2], 0, sizeof(*hist)*sz/2);
  20 +            }
  21 +        }
  22 +    }
  23 +
  24      ti->history[ti->history_elements++] = *ev;
  25 -    /* FIXME: proper overflow fixes */
  26      if (ti->history_elements > ti->history_size - 1) {
  27          ti->history_elements = ti->history_size - 1;
  28 -        DebugF("source device %d: history size %d overflowing for touch %u\n",
  29 -               ti->sourceid, ti->history_size, ti->client_id);
  30 +        ErrorF("source device %d: history size %d overflowing for touch %u\n",
  31 +              ti->sourceid, ti->history_size, ti->client_id);
  32      }
  33  }
  34