Fix wrap around bug in XInput.
authorFraser Waters <frassle@gmail.com>
Fri, 9 Jan 2015 12:50:50 +0000 (12:50 +0000)
committerFraser Waters <frassle@gmail.com>
Fri, 9 Jan 2015 12:50:50 +0000 (12:50 +0000)
commit2de9c0b907c92fd309d72f9770fe75aa5872c24a
treeafc57f001dbc3cda5f516b6ad084ffa982ba9ce4
parenta43181a8026fbe76454a974c5e233c7c63835358
Fix wrap around bug in XInput.

Fixes #209.
Negating short.MinValue would cause a wrap around back to short.MinValue.
This resulted in joystick inputs like 0.8, 0.9, -1.00031.
Source/OpenTK/Platform/Windows/XInputJoystick.cs