public void SetAxis(short collection, HIDPage page, short usage, short value)
{
if (page == HIDPage.GenericDesktop || page == HIDPage.Simulation) // set axis only when HIDPage is known by HidHelper.TranslateJoystickAxis() to avoid axis0 to be overwritten by unknown HIDPage
{
//Certain joysticks (Speedlink Black Widow, PS3 pad connected via USB)
//return an invalid HID page of 1, so
if ((int)usage != 1)
{
int axis = GetAxis(collection, page, usage);
State.SetAxis(axis, value);
}
}
}
public static int TranslateJoystickAxis(HIDPage page, int usage)
{
switch (page)
{
case HIDPage.GenericDesktop:
switch ((HIDUsageGD)usage)
{
case HIDUsageGD.X:
return(0);
case HIDUsageGD.Y:
return(1);
case HIDUsageGD.Z:
return(2);
case HIDUsageGD.Rz:
return(3);
case HIDUsageGD.Rx:
return(4);
case HIDUsageGD.Ry:
return(5);
case HIDUsageGD.Slider:
return(6);
case HIDUsageGD.Dial:
return(7);
case HIDUsageGD.Wheel:
return(8);
}
break;
case HIDPage.Simulation:
switch ((HIDUsageSim)usage)
{
case HIDUsageSim.Rudder:
return(9);
case HIDUsageSim.Throttle:
return(10);
}
break;
}
Debug.Print("[Input] Unknown axis with HID page/usage {0}/{1}", page, usage);
return(0);
}
public static JoystickAxis TranslateJoystickAxis(HIDPage page, int usage)
{
switch (page)
{
case HIDPage.GenericDesktop:
switch ((HIDUsageGD)usage)
{
case HIDUsageGD.X:
return(JoystickAxis.Axis0);
case HIDUsageGD.Y:
return(JoystickAxis.Axis1);
case HIDUsageGD.Z:
return(JoystickAxis.Axis2);
case HIDUsageGD.Rz:
return(JoystickAxis.Axis3);
case HIDUsageGD.Rx:
return(JoystickAxis.Axis4);
case HIDUsageGD.Ry:
return(JoystickAxis.Axis5);
case HIDUsageGD.Slider:
return(JoystickAxis.Axis6);
case HIDUsageGD.Dial:
return(JoystickAxis.Axis7);
case HIDUsageGD.Wheel:
return(JoystickAxis.Axis8);
}
break;
case HIDPage.Simulation:
switch ((HIDUsageSim)usage)
{
case HIDUsageSim.Rudder:
return(JoystickAxis.Axis9);
case HIDUsageSim.Throttle:
return(JoystickAxis.Axis10);
}
break;
}
return(JoystickAxis.Last);
}
JoystickAxis GetAxis(short collection, HIDPage page, short usage)
{
int key = MakeKey(collection, page, usage);
if (!axes.ContainsKey(key))
{
JoystickAxis axis = HidHelper.TranslateJoystickAxis(page, usage);
if (axis == JoystickAxis.Last)
{
return(axis);
}
axes.Add(key, axis);
}
return(axes[key]);
}
public static JoystickAxis TranslateJoystickAxis(HIDPage page, int usage)
{
switch (page)
{
case HIDPage.GenericDesktop:
switch ((HIDUsageGD)usage)
{
case HIDUsageGD.X:
return JoystickAxis.Axis0;
case HIDUsageGD.Y:
return JoystickAxis.Axis1;
case HIDUsageGD.Z:
return JoystickAxis.Axis2;
case HIDUsageGD.Rz:
return JoystickAxis.Axis3;
case HIDUsageGD.Rx:
return JoystickAxis.Axis4;
case HIDUsageGD.Ry:
return JoystickAxis.Axis5;
case HIDUsageGD.Slider:
return JoystickAxis.Axis6;
case HIDUsageGD.Dial:
return JoystickAxis.Axis7;
case HIDUsageGD.Wheel:
return JoystickAxis.Axis8;
}
break;
case HIDPage.Simulation:
switch ((HIDUsageSim)usage)
{
case HIDUsageSim.Rudder:
return JoystickAxis.Axis9;
case HIDUsageSim.Throttle:
return JoystickAxis.Axis10;
}
break;
}
Debug.Print("[Input] Unknown axis with HID page/usage {0}/{1}", page, usage);
return 0;
}
unsafe void UpdateAxes(RawInput *rin, Device stick)
{
for (int i = 0; i < stick.AxisCaps.Count; i++)
{
if (stick.AxisCaps[i].IsRange)
{
Debug.Print("[{0}] Axis range collections not implemented. Please report your controller type at http://www.opentk.com",
GetType().Name);
continue;
}
HIDPage page = stick.AxisCaps[i].UsagePage;
short usage = stick.AxisCaps[i].NotRange.Usage;
uint value = 0;
short collection = stick.AxisCaps[i].LinkCollection;
HidProtocolStatus status = HidProtocol.GetUsageValue(
HidProtocolReportType.Input,
page, 0, usage, ref value,
PreparsedData,
new IntPtr((void *)&rin->Data.HID.RawData),
rin->Data.HID.Size);
if (status != HidProtocolStatus.Success)
{
Debug.Print("[{0}] HidProtocol.GetScaledUsageValue() failed. Error: {1}",
GetType().Name, status);
continue;
}
if (page == HIDPage.GenericDesktop && (HIDUsageGD)usage == HIDUsageGD.Hatswitch)
{
stick.SetHat(collection, page, usage, GetHatPosition(value, stick.AxisCaps[i]));
}
else
{
short scaled_value = (short)HidHelper.ScaleValue(
(int)((long)value + stick.AxisCaps[i].LogicalMin),
stick.AxisCaps[i].LogicalMin, stick.AxisCaps[i].LogicalMax,
Int16.MinValue, Int16.MaxValue);
stick.SetAxis(collection, page, usage, scaled_value);
}
}
}
static KeyboardState UpdateKeyboard(KeyboardState state, IOHIDValueRef val)
{
IOHIDElementRef elem = NativeMethods.IOHIDValueGetElement(val);
int v_int = NativeMethods.IOHIDValueGetIntegerValue(val).ToInt32();
HIDPage page = NativeMethods.IOHIDElementGetUsagePage(elem);
int usage = NativeMethods.IOHIDElementGetUsage(elem);
switch (page)
{
case HIDPage.GenericDesktop:
case HIDPage.KeyboardOrKeypad:
int raw = (int)usage;
if (raw >= RawKeyMap.Length || raw < 0)
{
Debug.Print("[Warning] Key {0} not mapped.", raw);
return(state);
}
Key key = RawKeyMap[raw];
state[key] = v_int != 0;
break;
}
return(state);
}
JoystickAxis GetAxis(short collection, HIDPage page, short usage)
{
int key = MakeKey(collection, page, usage);
if (!axes.ContainsKey(key))
{
JoystickAxis axis = HidHelper.TranslateJoystickAxis(page, usage);
axes.Add(key, axis);
}
return axes[key];
}
JoystickButton GetButton(short collection, HIDPage page, short usage)
{
int key = MakeKey(collection, page, usage);
if (!buttons.ContainsKey(key))
{
buttons.Add(key, JoystickButton.Button0 + buttons.Count);
}
return buttons[key];
}
public static extern HidProtocolStatus GetUsageValue(HidProtocolReportType type,
HIDPage usage_page, short link_collection, short usage, ref uint usage_value,
[In] byte[] preparsed_data, IntPtr report, int report_length);
public void SetAxis(short collection, HIDPage page, short usage, short value)
{
JoystickAxis axis = GetAxis(collection, page, usage);
State.SetAxis(axis, value);
}
static int MakeKey(short collection, HIDPage page, short usage)
{
byte coll_byte = unchecked((byte)collection);
byte page_byte = unchecked((byte)(((ushort)page & 0xff00) >> 8 | ((ushort)page & 0xff)));
return (coll_byte << 24) | (page_byte << 16) | unchecked((ushort)usage);
}
public void SetButton(short collection, HIDPage page, short usage, bool value)
{
JoystickButton button = GetButton(collection, page, usage);
State.SetButton(button, value);
}
public RawInputDevice(HIDUsageGD usage, RawInputDeviceFlags flags, HWND target)
{
UsagePage = HIDPage.GenericDesktop;
Usage = (short)usage;
Flags = flags;
Target = target;
}
public static extern HidProtocolStatus GetUsageValue(HidProtocolReportType type,
HIDPage usage_page, short link_collection, short usage, ref uint usage_value,
[In] byte[] preparsed_data, IntPtr report, int report_length);
unsafe public static extern HidProtocolStatus GetUsages(HidProtocolReportType type,
HIDPage usage_page, short link_collection, short* usage_list, ref int usage_length,
[In] byte[] preparsed_data, IntPtr report, int report_length);
public static extern HidProtocolStatus GetSpecificButtonCaps(HidProtocolReportType ReportType,
HIDPage UsagePage, ushort LinkCollection, ushort Usage,
[Out] HidProtocolButtonCaps[] ButtonCaps, ref ushort ButtonCapsLength,
[In] byte[] PreparsedData);
public void SetHat(short collection, HIDPage page, short usage, HatPosition pos)
{
JoystickHat hat = GetHat(collection, page, usage);
State.SetHat(hat, new JoystickHatState(pos));
}
public void SetButton(short collection, HIDPage page, short usage, bool value)
{
JoystickButton button = GetButton(collection, page, usage);
State.SetButton(button, value);
}
public RawInputDevice(HIDUsageSim usage, RawInputDeviceFlags flags, HWND target)
{
UsagePage = HIDPage.Simulation;
Usage = (short)usage;
Flags = flags;
Target = target;
}
bool QueryDeviceCaps(Device stick)
{
Debug.Print("[{0}] Querying joystick {1}",
TypeName, stick.GetGuid());
try
{
Debug.Indent();
HidProtocolCaps caps;
if (GetPreparsedData(stick.Handle, ref PreparsedData) &&
GetDeviceCaps(stick, PreparsedData, out caps))
{
if (stick.AxisCaps.Count >= JoystickState.MaxAxes ||
stick.ButtonCaps.Count >= JoystickState.MaxButtons)
{
Debug.Print("Device {0} has {1} and {2} buttons. This might be a touch device - skipping.",
stick.Handle, stick.AxisCaps.Count, stick.ButtonCaps.Count);
return(false);
}
for (int i = 0; i < stick.AxisCaps.Count; i++)
{
Debug.Print("Analyzing value collection {0} {1} {2}",
i,
stick.AxisCaps[i].IsRange ? "range" : "",
stick.AxisCaps[i].IsAlias ? "alias" : "");
if (stick.AxisCaps[i].IsRange || stick.AxisCaps[i].IsAlias)
{
Debug.Print("Skipping value collection {0}", i);
continue;
}
HIDPage page = stick.AxisCaps[i].UsagePage;
short collection = stick.AxisCaps[i].LinkCollection;
switch (page)
{
case HIDPage.GenericDesktop:
HIDUsageGD gd_usage = (HIDUsageGD)stick.AxisCaps[i].NotRange.Usage;
switch (gd_usage)
{
case HIDUsageGD.X:
case HIDUsageGD.Y:
case HIDUsageGD.Z:
case HIDUsageGD.Rx:
case HIDUsageGD.Ry:
case HIDUsageGD.Rz:
case HIDUsageGD.Slider:
case HIDUsageGD.Dial:
case HIDUsageGD.Wheel:
Debug.Print("Found axis {0} ({1} / {2})",
JoystickAxis.Axis0 + stick.GetCapabilities().AxisCount,
page, (HIDUsageGD)stick.AxisCaps[i].NotRange.Usage);
stick.SetAxis(collection, page, stick.AxisCaps[i].NotRange.Usage, 0);
break;
case HIDUsageGD.Hatswitch:
Debug.Print("Found hat {0} ({1} / {2})",
JoystickHat.Hat0 + stick.GetCapabilities().HatCount,
page, (HIDUsageGD)stick.AxisCaps[i].NotRange.Usage);
stick.SetHat(collection, page, stick.AxisCaps[i].NotRange.Usage, HatPosition.Centered);
break;
default:
Debug.Print("Unknown usage {0} for page {1}",
gd_usage, page);
break;
}
break;
case HIDPage.Simulation:
switch ((HIDUsageSim)stick.AxisCaps[i].NotRange.Usage)
{
case HIDUsageSim.Rudder:
case HIDUsageSim.Throttle:
Debug.Print("Found simulation axis {0} ({1} / {2})",
JoystickAxis.Axis0 + stick.GetCapabilities().AxisCount,
page, (HIDUsageSim)stick.AxisCaps[i].NotRange.Usage);
stick.SetAxis(collection, page, stick.AxisCaps[i].NotRange.Usage, 0);
break;
}
break;
default:
Debug.Print("Unknown page {0}", page);
break;
}
}
for (int i = 0; i < stick.ButtonCaps.Count; i++)
{
Debug.Print("Analyzing button collection {0} {1} {2}",
i,
stick.ButtonCaps[i].IsRange ? "range" : "",
stick.ButtonCaps[i].IsAlias ? "alias" : "");
if (stick.ButtonCaps[i].IsAlias)
{
Debug.Print("Skipping button collection {0}", i);
continue;
}
bool is_range = stick.ButtonCaps[i].IsRange;
HIDPage page = stick.ButtonCaps[i].UsagePage;
short collection = stick.ButtonCaps[i].LinkCollection;
switch (page)
{
case HIDPage.Button:
if (is_range)
{
for (short usage = stick.ButtonCaps[i].Range.UsageMin; usage <= stick.ButtonCaps[i].Range.UsageMax; usage++)
{
Debug.Print("Found button {0} ({1} / {2})",
JoystickButton.Button0 + stick.GetCapabilities().ButtonCount,
page, usage);
stick.SetButton(collection, page, usage, false);
}
}
else
{
Debug.Print("Found button {0} ({1} / {2})",
JoystickButton.Button0 + stick.GetCapabilities().ButtonCount,
page, stick.ButtonCaps[i].NotRange.Usage);
stick.SetButton(collection, page, stick.ButtonCaps[i].NotRange.Usage, false);
}
break;
default:
Debug.Print("Unknown page {0} for button.", page);
break;
}
}
}
else
{
return(false);
}
}
finally
{
Debug.Unindent();
}
return(true);
}
public void SetAxis(short collection, HIDPage page, short usage, short value)
{
JoystickAxis axis = GetAxis(collection, page, usage);
State.SetAxis(axis, value);
}
public void SetHat(short collection, HIDPage page, short usage, HatPosition pos)
{
JoystickHat hat = GetHat(collection, page, usage);
State.SetHat(hat, new JoystickHatState(pos));
}
public static extern HidProtocolStatus GetSpecificButtonCaps(HidProtocolReportType ReportType,
HIDPage UsagePage, ushort LinkCollection, ushort Usage,
[Out] HidProtocolButtonCaps[] ButtonCaps, ref ushort ButtonCapsLength,
[In] byte[] PreparsedData);
public static extern bool IOHIDDeviceConformsTo(
IOHIDDeviceRef inIOHIDDeviceRef, // IOHIDDeviceRef for the HID device
HIDPage inUsagePage, // the usage page to test conformance with
int inUsage); // the usage to test conformance with
unsafe public static extern HidProtocolStatus GetUsages(HidProtocolReportType type,
HIDPage usage_page, short link_collection, short *usage_list, ref int usage_length,
[In] byte[] preparsed_data, IntPtr report, int report_length);
public static extern bool IOHIDDeviceConformsTo(
IOHIDDeviceRef inIOHIDDeviceRef, // IOHIDDeviceRef for the HID device
HIDPage inUsagePage, // the usage page to test conformance with
int inUsage); // the usage to test conformance with
JoystickHat GetHat(short collection, HIDPage page, short usage)
{
int key = MakeKey(collection, page, usage);
if (!hats.ContainsKey(key))
{
hats.Add(key, JoystickHat.Hat0 + hats.Count);
}
return hats[key];
}
