// enumerate the dinput devices
int __stdcall plDInputMgr::EnumGamepadCallback(const DIDEVICEINSTANCE* device, void* pRef)
{
HRESULT hr;
plDInput* pDI = (plDInput*)pRef;
IDirectInputDevice8* fStick = nil;
hr = pDI->fDInput->CreateDevice(device->guidInstance, &fStick, NULL);
if(!FAILED(hr))
{
pDI->fSticks.Append(new plDIDevice(fStick));
// the following code pertaining to the action map shouldn't be here.
// in fact this shouldn't work at all according to MS, but this is
// currently the only way this works. Whatever - the correct
// code is here and commented out in case this ever gets fixed by MS
// in a future release of dinput.
HRESULT hr = fStick->BuildActionMap(pDI->fActionFormat, NULL, NULL);
if (!FAILED(hr))
{
hr = fStick->SetActionMap( pDI->fActionFormat, NULL, NULL );
DIPROPDWORD dipW;
dipW.diph.dwSize = sizeof(DIPROPDWORD);
dipW.diph.dwHeaderSize = sizeof(DIPROPHEADER);
dipW.diph.dwHow = DIPH_DEVICE;
dipW.diph.dwObj = 0;
dipW.dwData = 500; // 5% of axis range for deadzone
hr = fStick->SetProperty(DIPROP_DEADZONE , &dipW.diph);
}
return DIENUM_CONTINUE;
}
return DIENUM_STOP;
}
// Callback that adjusts all found axes to [-stickRange, +stickRange].
static BOOL CALLBACK axisCallback(LPCDIDEVICEOBJECTINSTANCE instance,
LPVOID userData)
{
IDirectInputDevice8* dev = static_cast<IDirectInputDevice8*>(userData);
DIPROPRANGE range;
range.diph.dwSize = sizeof(DIPROPRANGE);
range.diph.dwHeaderSize = sizeof(DIPROPHEADER);
range.diph.dwHow = DIPH_BYID;
range.diph.dwObj = instance->dwType;
range.lMin = -stickRange;
range.lMax = +stickRange;
dev->SetProperty(DIPROP_RANGE, &range.diph);
return DIENUM_CONTINUE;
}
Gosu::Input::Input(HWND window)
: pimpl(new Impl)
{
pimpl->window = window;
pimpl->mouseFactorX = pimpl->mouseFactorY = 1.0;
// Create the main input object (only necessary for setup).
IDirectInput8* inputRaw;
Impl::check("creating the main DirectInput object",
::DirectInput8Create(Win::instance(), DIRECTINPUT_VERSION,
IID_IDirectInput8, reinterpret_cast<void**>(&inputRaw), 0));
pimpl->input = Win::shareComPtr(inputRaw);
// Prepare property struct for setting the amount of data to buffer.
DIPROPDWORD bufferSize;
bufferSize.diph.dwSize = sizeof(DIPROPDWORD);
bufferSize.diph.dwHeaderSize = sizeof(DIPROPHEADER);
bufferSize.diph.dwHow = DIPH_DEVICE;
bufferSize.diph.dwObj = 0;
bufferSize.dwData = Impl::inputBufferSize;
// Set up the system keyboard.
IDirectInputDevice8* kbRaw;
Impl::check("creating the keyboard device object",
pimpl->input->CreateDevice(GUID_SysKeyboard, &kbRaw, 0));
pimpl->keyboard = Win::shareComPtr(kbRaw);
Impl::check("setting the keyboard's data format",
kbRaw->SetDataFormat(&c_dfDIKeyboard));
Impl::check("setting the keyboard's cooperative level",
kbRaw->SetCooperativeLevel(window,
DISCL_FOREGROUND | DISCL_NONEXCLUSIVE));
Impl::check("setting the keyboard's buffer size",
kbRaw->SetProperty(DIPROP_BUFFERSIZE, &bufferSize.diph));
kbRaw->Acquire();
// Set up the system mouse.
IDirectInputDevice8* mouseRaw;
Impl::check("creating the mouse device object",
pimpl->input->CreateDevice(GUID_SysMouse, &mouseRaw, 0));
pimpl->mouse = Win::shareComPtr(mouseRaw);
Impl::check("setting the mouse's data format",
mouseRaw->SetDataFormat(&c_dfDIMouse));
Impl::check("setting the mouse's cooperative level",
mouseRaw->SetCooperativeLevel(window,
DISCL_FOREGROUND | DISCL_NONEXCLUSIVE));
Impl::check("setting the mouse's buffer size",
mouseRaw->SetProperty(DIPROP_BUFFERSIZE, &bufferSize.diph));
mouseRaw->Acquire();
pimpl->swapMouse = ::GetSystemMetrics(SM_SWAPBUTTON) != 0;
// Set up all gamepads.
pimpl->input->EnumDevices(DI8DEVCLASS_GAMECTRL, Impl::gamepadCallback,
pimpl.get(), DIEDFL_ATTACHEDONLY);
// Get into a usable default state.
pimpl->mouseX = pimpl->mouseY = 0;
pimpl->updateMousePos();
buttons.assign(false);
}
HRESULT _stdcall SetProperty(REFGUID a,const DIPROPHEADER* b) { return RealDevice->SetProperty(a,b); }
