khanat-code-old/code/nel/src/misc/di_game_device.cpp
2014-09-09 17:20:23 -07:00

523 lines
14 KiB
C++

// NeL - MMORPG Framework <http://dev.ryzom.com/projects/nel/>
// Copyright (C) 2010 Winch Gate Property Limited
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as
// published by the Free Software Foundation, either version 3 of the
// License, or (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
#include "stdmisc.h"
#include "di_game_device.h"
#include "nel/misc/game_device_events.h"
#ifdef NL_OS_WINDOWS
#ifdef DEBUG_NEW
#define new DEBUG_NEW
#endif
namespace NLMISC
{
//============================================================================
CDIGameDevice::CDIGameDevice() : _Device(NULL)
{
::memset(&_CurrentState, 0, sizeof(_CurrentState));
}
//============================================================================
CDIGameDevice::~CDIGameDevice()
{
if (_Device)
{
_Device->Unacquire();
_Device->Release();
}
}
//============================================================================
CDIGameDevice *CDIGameDevice::createGameDevice(IDirectInput8 *di8,
HWND hwnd,
CDIEventEmitter *diEventEmitter,
const CGameDeviceDesc &desc,
REFGUID rguid) throw(EDirectInput)
{
nlassert(diEventEmitter);
nlassert(di8);
std::auto_ptr<CDIGameDevice> dev(new CDIGameDevice);
//
HRESULT r = di8->CreateDevice(rguid, &dev->_Device, NULL);
if (r != DI_OK) throw EDirectInputGameDeviceNotCreated();
r = dev->_Device->SetDataFormat(pJoyDataFormat);
nlassert(r == DI_OK);
//
r = dev->_Device->SetCooperativeLevel(hwnd, DISCL_FOREGROUND | DISCL_EXCLUSIVE);
if (r != DI_OK) throw EDirectInputCooperativeLevelFailed();
//
//
dev->_Desc = desc;
dev->_EventEmitter = diEventEmitter;
dev->querryControls();
return dev.release();
}
//============================================================================
void CDIGameDevice::begin(CEventServer *server)
{
nlassert(_Device);
HRESULT r;
r = _Device->Poll();
if (r == DIERR_INPUTLOST || r == DIERR_NOTACQUIRED)
{
r = _Device->Acquire();
if (r != DI_OK) return;
r = _Device->Poll();
if (r != DI_OK) return;
}
CDIJoyState newState;
r = _Device->GetDeviceState(sizeof(CDIJoyState), &newState);
if (r != DI_OK) return;
uint k;
//////////
// Axis //
//////////
for (k = 0; k < MaxNumAxis; ++k)
{
CAxis &axis = _Axis[k];
if (axis.Present)
{
if (((LONG *) &newState)[k] != ((LONG *) &_CurrentState)[k]) // state changed ?
{
// update position
axis.Value = 2.f * (((LONG *) &newState)[k] - axis.Min) / (float) (axis.Max - axis.Min) - 1.f;
// create event
CGDAxisMoved *event = new CGDAxisMoved((IGameDevice::TAxis) k, axis.Value, this, _EventEmitter);
// update state
((LONG *) &_CurrentState)[k] = ((LONG *) &newState)[k];
//
server->postEvent(event);
//
}
}
}
/////////////
// Buttons //
/////////////
for (k = 0; k < _Buttons.size(); ++k)
{
CButton &bt = _Buttons[k];
if ((newState.rgbButtons[k] & 0x80) != (_CurrentState.rgbButtons[k] & 0x80))
{
bool pushed = (newState.rgbButtons[k] & 0x80) != 0;
// update the state of the button
bt.Pushed = pushed;
CGDButton *event;
if (pushed) event = new CGDButtonDown(k, this, _EventEmitter);
else event = new CGDButtonUp(k, this, _EventEmitter);
// update state
_CurrentState.rgbButtons[k] = newState.rgbButtons[k];
server->postEvent(event);
}
}
/////////////
// Sliders //
/////////////
for (k = 0; k < _Sliders.size(); ++k)
{
CSlider &sl = _Sliders[k];
if (newState.rglSlider[k] != _CurrentState.rglSlider[k]) // state changed ?
{
// update position
sl.Pos = ( newState.rglSlider[k] - sl.Min) / (float) (sl.Max - sl.Min);
// create event
CGDSliderMoved *event = new CGDSliderMoved(sl.Pos, k, this, _EventEmitter);
// update state
_CurrentState.rglSlider[k] = newState.rglSlider[k];
//
server->postEvent(event);
}
}
//////////
// POVs //
//////////
for (k = 0; k < _POVs.size(); ++k)
{
CPOV &pov = _POVs[k];
if (newState.rgdwPOV[k] != _CurrentState.rgdwPOV[k]) // state changed ?
{
DWORD value = newState.rgdwPOV[k];
pov.Centered = (LOWORD(value) == 0xFFFF);
if (!pov.Centered)
{
// update position
pov.Angle = value / 100.f;
}
// create event
CGDPOVChanged *event = new CGDPOVChanged(pov.Centered, pov.Angle, k, this, _EventEmitter);
// update state
_CurrentState.rgdwPOV[k] = newState.rgdwPOV[k];
//
server->postEvent(event);
}
}
}
//============================================================================
void CDIGameDevice::poll(CInputDeviceServer *dev)
{
// buffered datas not supported
}
//============================================================================
void CDIGameDevice::submit(IInputDeviceEvent *deviceEvent, CEventServer *server)
{
// should never be called, buffered datas not supported
nlassert(0);
}
//============================================================================
/** Tool fct : tests whether a DIDEVICEOBJECTINSTANCE contains a controls name and return it,
* or build a default one
*/
static void BuildCtrlName(LPCDIDEVICEOBJECTINSTANCE lpddoi,
std::string &destName,
const char *defaultName)
{
if (lpddoi->dwSize >= offsetof(DIDEVICEOBJECTINSTANCE, tszName) + sizeof(TCHAR[MAX_PATH]))
{
destName = (::strcmp("N/A", lpddoi->tszName) == 0) ? defaultName
: lpddoi->tszName;
}
else
{
destName = defaultName;
}
}
//============================================================================
// A callback to enumerate the controls of a device
BOOL CALLBACK DIEnumDeviceObjectsCallback
(
LPCDIDEVICEOBJECTINSTANCE lpddoi,
LPVOID pvRef
)
{
CDIGameDevice *gd = (CDIGameDevice *) pvRef;
return gd->processEnumObject(lpddoi);
}
//=======================================================================
// get range for an axis
static HRESULT GetDIAxisRange(LPDIRECTINPUTDEVICE8 device, uint offset, DWORD type, sint &min, sint &max)
{
DIPROPRANGE diprg;
diprg.diph.dwSize = sizeof(DIPROPRANGE);
diprg.diph.dwHeaderSize = sizeof(DIPROPHEADER);
diprg.diph.dwHow = DIPH_BYOFFSET;
diprg.diph.dwObj = offset;
// Set the range for the axis
HRESULT r = device->GetProperty(DIPROP_RANGE, &diprg.diph);
if (r == DIERR_OBJECTNOTFOUND)
{
// try from its ID
diprg.diph.dwHow = DIPH_BYID;
diprg.diph.dwObj = type;
// Set the range for the axis
HRESULT r = device->GetProperty(DIPROP_RANGE, &diprg.diph);
if (r != DI_OK)
{
// setup default values ...
min = 0;
max = 65535;
return r;
}
}
else if (r != DI_OK)
{
min = 0;
max = 65535;
return r;
}
/* switch (r)
{
default:
nlinfo("ok");
break;
case DIERR_INVALIDPARAM:
nlinfo("invalid param");
break;
case DIERR_NOTEXCLUSIVEACQUIRED:
nlinfo("DIERR_NOTEXCLUSIVEACQUIRED");
break;
case DIERR_NOTINITIALIZED:
nlinfo("DIERR_NOTINITIALIZED");
break;
case DIERR_OBJECTNOTFOUND:
nlinfo("DIERR_OBJECTNOTFOUND");
break;
case DIERR_UNSUPPORTED:
nlinfo("DIERR_UNSUPPORTED");
break;
}*/
min = (sint) diprg.lMin;
max = (sint) diprg.lMax;
return r;
}
//============================================================================
BOOL CDIGameDevice::processEnumObject(LPCDIDEVICEOBJECTINSTANCE lpddoi)
{
// the dwSize field gives us the size of the objects, and the available fields
// has this object the field guidType and dwOfs ?
if (lpddoi->dwSize < offsetof(DIDEVICEOBJECTINSTANCE, dwOfs) + sizeof(DWORD)) return DIENUM_CONTINUE;
uint ctrlType = (uint) lpddoi->dwType;
///////////////////////////////////////////
// axis, we only support absolute ones //
///////////////////////////////////////////
if (lpddoi->guidType == GUID_XAxis && (ctrlType & DIDFT_ABSAXIS) )
{
GetDIAxisRange(_Device, lpddoi->dwOfs, lpddoi->dwType, _Axis[XAxis].Min, _Axis[XAxis].Max);
BuildCtrlName(lpddoi, _Axis[XAxis].Name, "X Axis");
_Axis[XAxis].Present = true;
return DIENUM_CONTINUE;
}
if (lpddoi->guidType == GUID_YAxis && (ctrlType & DIDFT_ABSAXIS))
{
GetDIAxisRange(_Device, lpddoi->dwOfs, lpddoi->dwType, _Axis[YAxis].Min, _Axis[YAxis].Max);
BuildCtrlName(lpddoi, _Axis[YAxis].Name, "Y Axis");
_Axis[YAxis].Present = true;
return DIENUM_CONTINUE;
}
if (lpddoi->guidType == GUID_ZAxis && (ctrlType & DIDFT_ABSAXIS))
{
GetDIAxisRange(_Device, lpddoi->dwOfs, lpddoi->dwType, _Axis[ZAxis].Min, _Axis[ZAxis].Max);
BuildCtrlName(lpddoi, _Axis[ZAxis].Name, "Z Axis");
_Axis[ZAxis].Present = true;
return DIENUM_CONTINUE;
}
if (lpddoi->guidType == GUID_RxAxis && (ctrlType & DIDFT_ABSAXIS))
{
GetDIAxisRange(_Device, lpddoi->dwOfs, lpddoi->dwType, _Axis[RXAxis].Min, _Axis[RXAxis].Max);
BuildCtrlName(lpddoi, _Axis[RXAxis].Name, "RX Axis");
_Axis[RXAxis].Present = true;
return DIENUM_CONTINUE;
}
if (lpddoi->guidType == GUID_RyAxis && (ctrlType & DIDFT_ABSAXIS))
{
GetDIAxisRange(_Device, lpddoi->dwOfs, lpddoi->dwType, _Axis[RYAxis].Min, _Axis[RYAxis].Max);
BuildCtrlName(lpddoi, _Axis[RYAxis].Name, "RY Axis");
_Axis[RYAxis].Present = true;
return DIENUM_CONTINUE;
}
if (lpddoi->guidType == GUID_RzAxis && (ctrlType & DIDFT_ABSAXIS))
{
GetDIAxisRange(_Device, lpddoi->dwOfs, lpddoi->dwType, _Axis[RZAxis].Min, _Axis[RZAxis].Max);
BuildCtrlName(lpddoi, _Axis[RZAxis].Name, "RZ Axis");
_Axis[RZAxis].Present = true;
return DIENUM_CONTINUE;
}
// has this object the field dwType ?
if (lpddoi->dwSize < offsetof(DIDEVICEOBJECTINSTANCE, dwType) + sizeof(DWORD)) return DIENUM_CONTINUE;
uint type = lpddoi->dwType;
/////////////
// Buttons //
/////////////
if (type & DIDFT_BUTTON)
{
if (_Buttons.size() < MaxNumButtons)
{
_Buttons.push_back(CButton());
uint buttonIndex = (uint)_Buttons.size() - 1;
char defaultButtonName[32];
smprintf(defaultButtonName, 32, "BUTTON %d", buttonIndex + 1);
BuildCtrlName(lpddoi, _Buttons[buttonIndex].Name, defaultButtonName);
return DIENUM_CONTINUE;
}
}
/////////////
// Sliders //
/////////////
if (type & DIDFT_ABSAXIS)
{
if (_Sliders.size() < MaxNumSliders)
{
_Sliders.push_back(CSlider());
uint sliderIndex = (uint)_Sliders.size() - 1;
GetDIAxisRange(_Device, lpddoi->dwOfs, lpddoi->dwType, _Sliders[sliderIndex].Min, _Sliders[sliderIndex].Max);
char defaultSliderName[32];
smprintf(defaultSliderName, 32, "SLIDER %d", sliderIndex + 1);
BuildCtrlName(lpddoi, _Sliders[sliderIndex].Name, defaultSliderName);
}
return DIENUM_CONTINUE;
}
//////////
// POVs //
//////////
if (type & DIDFT_POV)
{
if (_POVs.size() < MaxNumPOVs)
{
_POVs.push_back(CPOV());
uint povIndex = (uint)_POVs.size() - 1;
char defaultPOVName[16];
smprintf(defaultPOVName, 16, "POV %d", povIndex + 1);
BuildCtrlName(lpddoi, _POVs[povIndex].Name, defaultPOVName);
}
return DIENUM_CONTINUE;
}
return DIENUM_CONTINUE;
}
//============================================================================
void CDIGameDevice::querryControls()
{
HRESULT r = _Device->EnumObjects(&DIEnumDeviceObjectsCallback, (LPVOID) this, DIDFT_ALL);
nlassert(r == DI_OK);
}
//============================================================================
bool CDIGameDevice::setBufferSize(uint size)
{
// uisually not supported by this kind of devices
return false;
}
//============================================================================
uint CDIGameDevice::getBufferSize() const
{
// uisually not supported by this kind of devices
return 0;
}
//============================================================================
uint CDIGameDevice::getNumButtons() const
{
return (uint)_Buttons.size();
}
//============================================================================
bool CDIGameDevice::hasAxis(TAxis axis) const
{
nlassert(axis < MaxNumAxis);
return _Axis[axis].Present;
}
//============================================================================
uint CDIGameDevice::getNumSliders() const
{
return (uint)_Sliders.size();
}
//============================================================================
uint CDIGameDevice::getNumPOV() const
{
return (uint)_POVs.size();
}
//============================================================================
const char *CDIGameDevice::getButtonName(uint index) const
{
nlassert(index < _Buttons.size());
return _Buttons[index].Name.c_str();
}
//============================================================================
const char *CDIGameDevice::getAxisName(TAxis axis) const
{
nlassert(axis < MaxNumAxis);
nlassert(hasAxis(axis)); // ! Not an axis of this device
return _Axis[axis].Name.c_str();
}
//============================================================================
const char *CDIGameDevice::getSliderName(uint index) const
{
nlassert(index < _Sliders.size());
return _Sliders[index].Name.c_str();
}
//============================================================================
const char *CDIGameDevice::getPOVName(uint index) const
{
nlassert(index < _POVs.size());
return _POVs[index].Name.c_str();
}
//============================================================================
bool CDIGameDevice::getButtonState(uint index) const
{
nlassert(index < _Buttons.size());
return _Buttons[index].Pushed;
}
//============================================================================
float CDIGameDevice::getAxisValue(TAxis axis) const
{
nlassert(axis < MaxNumAxis);
nlassert(hasAxis(axis)); // ! Not an axis of this device
return _Axis[axis].Value;
}
//============================================================================
float CDIGameDevice::getSliderPos(uint index) const
{
nlassert(index < _Sliders.size());
return _Sliders[index].Pos;
}
//============================================================================
float CDIGameDevice::getPOVAngle(uint index) const
{
nlassert(index < _POVs.size());
return _POVs[index].Angle;
}
} // NLMISC
#endif // NL_OS_WINDOWS