private static void InputReceived(System.IntPtr context, System.IntPtr res, System.IntPtr sender, System.IntPtr value)
{
System.IntPtr element = MacNative.IOHIDValueGetElement(value);
System.IntPtr cookie = MacNative.IOHIDElementGetCookie(element);
ushort page = MacNative.IOHIDElementGetUsagePage(element);
int usage = MacNative.IOHIDElementGetUsage(element);
switch (page)
{
case HIDDesktop:
switch (usage)
{
// X
case HIDX:
ManageXAxis(context, element, value);
break;
case HIDY:
ManageYAxis(context, element, value);
break;
}
break;
case HIDButtons:
ManageButtons(context, cookie, value);
break;
}
}
private static void DeviceAdded(System.IntPtr context, System.IntPtr res, System.IntPtr sender, System.IntPtr device)
{
if (MacNative.IOHIDDeviceOpen(device, IntPtr.Zero) == IntPtr.Zero)
{
if (MacNative.IOHIDDeviceConformsTo(device, HIDDesktop, HIDJoystick) ||
MacNative.IOHIDDeviceConformsTo(device, HIDDesktop, HIDGamePad) ||
MacNative.IOHIDDeviceConformsTo(device, HIDDesktop, HIDMultiAxis) ||
MacNative.IOHIDDeviceConformsTo(device, HIDDesktop, HIDWheel))
{
System.IntPtr product = MacNative.IOHIDDeviceGetProperty(device, MacNative.CFString("Product"));
string productName = MacNative.CString(product);
int index = 0;
foreach (Engine.Joystick joystick in engine.joysticks)
{
if (joystick == null)
{
engine.joysticks [index] = new Engine.Joystick();
engine.joysticks [index].index = index;
engine.joysticks [index].id = device.ToInt64();
engine.joysticks [index].name = productName;
MacNative.IOHIDDeviceRegisterInputValueCallback(device, DeviceInputCallback, device);
MacNative.IOHIDDeviceScheduleWithRunLoop(device, runLoop, defaultLoopMode);
return;
}
index++;
}
}
MacNative.IOHIDDeviceClose(device, IntPtr.Zero);
}
}
private static void ManageYAxis(System.IntPtr device, System.IntPtr element, System.IntPtr value)
{
Engine.Joystick joystick = GetJoystick(device);
if (joystick == null)
{
return;
}
int min = MacNative.IOHIDElementGetLogicalMin(element).ToInt32();
int max = MacNative.IOHIDElementGetLogicalMax(element).ToInt32();
int axis = MacNative.IOHIDValueGetIntegerValue(value).ToInt32();
joystick.y = Normalize(axis, min, max);
}
private static void ManageButtons(System.IntPtr device, System.IntPtr cookie, System.IntPtr value)
{
if (cookie.ToInt32() < 0 || cookie.ToInt32() > 19)
{
return;
}
Engine.Joystick joystick = GetJoystick(device);
if (joystick == null)
{
return;
}
int buttonPressed = MacNative.IOHIDValueGetIntegerValue(value).ToInt32();
joystick.buttons [cookie.ToInt32()] = buttonPressed >= 1;
}
private static void DeviceRemoved(System.IntPtr context, System.IntPtr res, System.IntPtr sender, System.IntPtr device)
{
foreach (Engine.Joystick joystick in engine.joysticks)
{
if (joystick != null)
{
if (joystick.id == device.ToInt64())
{
engine.joysticks [joystick.index] = null;
MacNative.IOHIDDeviceRegisterInputValueCallback(device, IntPtr.Zero, IntPtr.Zero);
MacNative.IOHIDDeviceUnscheduleFromRunLoop(device, runLoop, defaultLoopMode);
MacNative.IOHIDDeviceClose(device, IntPtr.Zero);
return;
}
}
}
}
public static void Initialize(Engine _engine)
{
runLoop = MacNative.CFRunLoopGetMain();
if (runLoop == IntPtr.Zero)
{
runLoop = MacNative.CFRunLoopGetCurrent();
}
if (runLoop == IntPtr.Zero)
{
throw(new Exception("[mac-input] unable to get a RunLoop"));
}
// avoid the RunLoop to be garbaged
MacNative.CFRetain(runLoop);
System.IntPtr hidManager = MacNative.IOHIDManagerCreate(IntPtr.Zero, IntPtr.Zero);
if (hidManager == IntPtr.Zero)
{
throw(new Exception("[mac-input] unable to get a HidManager()"));
}
DeviceAddedCallback = DeviceAdded;
MacNative.IOHIDManagerRegisterDeviceMatchingCallback(hidManager, DeviceAddedCallback, IntPtr.Zero);
DeviceRemovedCallback = DeviceRemoved;
MacNative.IOHIDManagerRegisterDeviceRemovalCallback(hidManager, DeviceRemovedCallback, IntPtr.Zero);
DeviceInputCallback = InputReceived;
MacNative.IOHIDManagerScheduleWithRunLoop(hidManager, runLoop, defaultLoopMode);
MacNative.IOHIDManagerSetDeviceMatching(hidManager, IntPtr.Zero);
MacNative.IOHIDManagerOpen(hidManager, IntPtr.Zero);
engine = _engine;
engine.OnAfterUpdate += new Engine.AfterUpdateEventHandler(RunLoopStep);
}
// this is run at each refresh
private static void RunLoopStep(object sender)
{
MacNative.CFRunLoopRunInMode(defaultLoopMode, 0, false);
}
