unsafe void PointerMap(StateEvent *data, InputDevice device)
{
switch (device)
{
case Mouse mouse:
MouseState *mouseState = (MouseState *)data->state;
mouseState->position = Map(mouseState->position, inputRegion, outputRegion);
break;
case Touchscreen touch:
// todo(kazuki): multi touch is not supported yet.
TouchState *touchState = (TouchState *)data->state;
touchState->position = Map(touchState->position, inputRegion, outputRegion);
break;
}
}
/// <summary>
/// Checks an Input Event for any significant changes that would be considered user activity.
/// </summary>
/// <param name="inputEvent">The input event being checked for changes</param>
/// <param name="device">The input device being checked against </param>
/// <param name="offset">The offset into the device that the event is placed</param>
/// <param name="sizeInbytes">The size of the event in bytes</param>
/// <returns>True if any changes exist in the event once the device has been filtered through for noise and non-significant changes. False otherwise.</returns>
public unsafe bool HasValidData(InputDevice device, InputEventPtr inputEvent, uint offset, uint sizeInbytes)
{
if (elements.Length == 0)
{
return(true);
}
if ((offset + sizeInbytes) * 8 > device.stateBlock.sizeInBits)
{
return(false);
}
bool result = false;
IntPtr noiseFilterPtr = InputStateBuffers.s_NoiseFilterBuffer;
if (noiseFilterPtr != IntPtr.Zero)
{
IntPtr ptrToEventState = IntPtr.Zero;
if (inputEvent.IsA <StateEvent>())
{
StateEvent *stateEvent = StateEvent.From(inputEvent);
ptrToEventState = stateEvent->state;
}
else if (inputEvent.IsA <DeltaStateEvent>())
{
DeltaStateEvent *stateEvent = DeltaStateEvent.From(inputEvent);
ptrToEventState = stateEvent->deltaState;
}
if (ptrToEventState != IntPtr.Zero)
{
result = BitmaskHelpers.CheckForMaskedValues(ptrToEventState, noiseFilterPtr, offset, sizeInbytes * 8);
for (int i = 0; i < elements.Length && !result; i++)
{
result = elements[i].HasValidData(inputEvent, device);
}
}
}
return(result);
}