81 lines
2.9 KiB
C#
81 lines
2.9 KiB
C#
using UnityEngine.InputSystem.LowLevel;
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namespace UnityEngine.InputSystem
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{
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internal partial class FastMouse : IInputStateCallbackReceiver, IEventMerger
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{
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protected new void OnNextUpdate()
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{
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// Changing these separately seems to not result in much of a difference
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// compared to just doing an InputState.Change with a complete MouseState.
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InputState.Change(delta, Vector2.zero, InputState.currentUpdateType);
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InputState.Change(scroll, Vector2.zero, InputState.currentUpdateType);
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}
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// For FastMouse, we know that our layout is MouseState so we can just go directly
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// to memory.
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protected new unsafe void OnStateEvent(InputEventPtr eventPtr)
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{
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if (eventPtr.type != StateEvent.Type)
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{
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base.OnStateEvent(eventPtr);
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return;
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}
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var stateEvent = StateEvent.FromUnchecked(eventPtr);
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if (stateEvent->stateFormat != MouseState.Format)
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{
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base.OnStateEvent(eventPtr);
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return;
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}
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var newState = *(MouseState*)stateEvent->state;
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var stateFromDevice = (MouseState*)((byte*)currentStatePtr + m_StateBlock.byteOffset);
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newState.delta += stateFromDevice->delta;
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newState.scroll += stateFromDevice->scroll;
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InputState.Change(this, ref newState, InputState.currentUpdateType, eventPtr: eventPtr);
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}
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void IInputStateCallbackReceiver.OnNextUpdate()
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{
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OnNextUpdate();
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}
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void IInputStateCallbackReceiver.OnStateEvent(InputEventPtr eventPtr)
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{
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OnStateEvent(eventPtr);
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}
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internal static unsafe bool MergeForward(InputEventPtr currentEventPtr, InputEventPtr nextEventPtr)
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{
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if (currentEventPtr.type != StateEvent.Type || nextEventPtr.type != StateEvent.Type)
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return false;
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var currentEvent = StateEvent.FromUnchecked(currentEventPtr);
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var nextEvent = StateEvent.FromUnchecked(nextEventPtr);
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if (currentEvent->stateFormat != MouseState.Format || nextEvent->stateFormat != MouseState.Format)
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return false;
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var currentState = (MouseState*)currentEvent->state;
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var nextState = (MouseState*)nextEvent->state;
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// if buttons or clickCount changed we need to process it, so don't merge events together
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if (currentState->buttons != nextState->buttons || currentState->clickCount != nextState->clickCount)
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return false;
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nextState->delta += currentState->delta;
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nextState->scroll += currentState->scroll;
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return true;
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}
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bool IEventMerger.MergeForward(InputEventPtr currentEventPtr, InputEventPtr nextEventPtr)
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{
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return MergeForward(currentEventPtr, nextEventPtr);
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}
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}
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}
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