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e4d50a73a1
We send two delta events. One may get eaten or softened by the accel code but our expectation should be that both may get through, so the length of the expected vector is √((2dx)² + (2dy)²). That is the maximum length we expect though for deltas ranged [-1, 1]. Deltas above the threshold would fail this test but we can fix that when needed. Pointer acceleration is subject to timing changes. When running tests in valgrind pointer accel timeouts and tracker resets may happen so we can't guarantee a specific acceleration length. Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net> Reviewed-by: Hans de Goede <hdegoede@redhat.com> |
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libinput libinput is a library that handles input devices for display servers and other applications that need to directly deal with input devices. It provides device detection, device handling, input device event processing and abstraction so minimize the amount of custom input code the user of libinput need to provide the common set of functionality that users expect. Input event processing includes scaling touch coordinates, generating pointer events from touchpads, pointer acceleration, etc. libinput originates from weston, the Wayland reference compositor. The source code of libinput can be found at: http://cgit.freedesktop.org/wayland/libinput For more information, visit: http://www.freedesktop.org/wiki/Software/libinput/