diff options
Diffstat (limited to 'include/wlr')
| -rw-r--r-- | include/wlr/types/wlr_seat.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/include/wlr/types/wlr_seat.h b/include/wlr/types/wlr_seat.h index 8c1d4661..d1984449 100644 --- a/include/wlr/types/wlr_seat.h +++ b/include/wlr/types/wlr_seat.h @@ -54,6 +54,19 @@ struct wlr_seat_client { // for use by wlr_seat_client_{next_serial,validate_event_serial} struct wlr_serial_ringset serials; bool needs_touch_frame; + + // When the client doesn't support high-resolution scroll, accumulate deltas + // until we can notify a discrete event. + // Some mice have a free spinning wheel, making possible to lock the wheel + // when the accumulator value is not 0. To avoid synchronization issues + // between the mouse wheel and the accumulators, store the last delta and + // when the scroll direction changes, reset the accumulator. + // Indexed by wlr_axis_orientation. + struct { + int32_t acc_discrete[2]; + int32_t last_discrete[2]; + double acc_axis[2]; + } value120; }; struct wlr_touch_point { |