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