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windows-server-2003/multimedia/directx/dinput/dx8/dll/dieffv.c

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/*****************************************************************************
*
* DIEffV.c
*
* Copyright (c) 1996-1997 Microsoft Corporation. All Rights Reserved.
*
* Abstract:
*
* Effect driver for VJOYD devices.
*
* Contents:
*
* CEffVxd_CreateInstance
*
*****************************************************************************/
#include "dinputpr.h"
#ifndef WINNT
/*****************************************************************************
*
* The sqiffle for this file.
*
*****************************************************************************/
#define sqfl sqflVxdEff
/*****************************************************************************
*
* Declare the interfaces we will be providing.
*
* WARNING! If you add a secondary interface, you must also change
* CEffVxd_New!
*
*****************************************************************************/
Primary_Interface(CEffVxd, IDirectInputEffectDriver);
Interface_Template_Begin(CEffVxd)
Primary_Interface_Template(CEffVxd, IDirectInputEffectDriver)
Interface_Template_End(CEffVxd)
/*****************************************************************************
*
* @doc INTERNAL
*
* @struct CEffVxd |
*
* An <i IDirectInputEffectDriver> wrapper for VJOYD
* joysticks.
*
* @field IDirectInputEffectDriver | didc |
*
* The object (containing vtbl).
*
*****************************************************************************/
typedef struct CEffVxd {
/* Supported interfaces */
IDirectInputEffectDriver ded;
} CEffVxd, DVE, *PDVE;
typedef IDirectInputEffectDriver DED, *PDED;
#define ThisClass CEffVxd
#define ThisInterface IDirectInputEffectDriver
#define riidExpected &IID_IDirectInputEffectDriver
/*****************************************************************************
*
* CEffVxd::QueryInterface (from IUnknown)
* CEffVxd::AddRef (from IUnknown)
* CEffVxd::Release (from IUnknown)
*
*****************************************************************************/
/*****************************************************************************
*
* @doc DDK
*
* @method HRESULT | IDirectInputEffectDriver | QueryInterface |
*
* Gives a client access to other interfaces on an object.
*
* @cwrap LPDIRECTINPUTEFFECTDRIVER | lpEffectDriver
*
* @parm IN REFIID | riid |
*
* The requested interface's IID.
*
* @parm OUT LPVOID * | ppvObj |
*
* Receives a pointer to the obtained interface.
*
* @returns
*
* Returns a COM error code.
*
* @xref OLE documentation for <mf IUnknown::QueryInterface>.
*
*****************************************************************************
*
* @doc DDK
*
* @method HRESULT | IDirectInputEffectDriver | AddRef |
*
* Increments the reference count for the interface.
*
* @cwrap LPDIRECTINPUTEFFECTDRIVER | lpEffectDriver
*
* @returns
*
* Returns the object reference count.
*
* @xref OLE documentation for <mf IUnknown::AddRef>.
*
*****************************************************************************
*
* @doc DDK
*
* @method HRESULT | IDirectInputEffectDriver | Release |
*
* Decrements the reference count for the interface.
* If the reference count on the object falls to zero,
* the object is freed from memory.
*
* @cwrap LPDIRECTINPUTEFFECTDRIVER | lpEffectDriver
*
* @returns
*
* Returns the object reference count.
*
* @xref OLE documentation for <mf IUnknown::Release>.
*
*****************************************************************************
*
* @doc INTERNAL
*
* @method HRESULT | CEffVxd | QIHelper |
*
* We don't have any dynamic interfaces and simply forward
* to <f Common_QIHelper>.
*
* @parm IN REFIID | riid |
*
* The requested interface's IID.
*
* @parm OUT LPVOID * | ppvObj |
*
* Receives a pointer to the obtained interface.
*
*****************************************************************************
*
* @doc INTERNAL
*
* @method HRESULT | CEffVxd | AppFinalize |
*
* We don't have any weak pointers, so we can just
* forward to <f Common_Finalize>.
*
* @parm PV | pvObj |
*
* Object being released from the application's perspective.
*
*****************************************************************************/
/*
* @doc INTERNAL
*
* @method HRESULT | CEffVxd | Finalize |
*
* We don't have any instance data, so we can just
* forward to <f Common_Finalize>.
*
*****************************************************************************/
#ifdef DEBUG
Default_QueryInterface(CEffVxd)
Default_AddRef(CEffVxd)
Default_Release(CEffVxd)
#else
#define CEffVxd_QueryInterface Common_QueryInterface
#define CEffVxd_AddRef Common_AddRef
#define CEffVxd_Release Common_Release
#endif
#define CEffVxd_QIHelper Common_QIHelper
#define CEffVxd_AppFinalize Common_AppFinalize
#define CEffVxd_Finalize Common_Finalize
/*****************************************************************************
*
* @doc INTERNAL
*
* @method HRESULT | CEffVxd | DeviceID |
*
* Inform the driver of the identity of the device.
* See <mf IDirectInputEffectDriver::DeviceID>
* for more information.
*
* Doesn't do anything because VJOYD will already
* have told the driver its identity.
*
* @cwrap LPDIRECTINPUTEFFECTDRIVER | lpEffectDriver
*
* @parm DWORD | dwDirectInputVersion |
*
* The version of DirectInput that loaded the
* effect driver.
*
* @parm DWORD | dwExternalID |
*
* The joystick ID number being used.
* The Windows joystick subsystem allocates external IDs.
*
* @parm DWORD | fBegin |
*
* Nonzero if access to the device is beginning.
* Zero if the access to the device is ending.
*
* @parm DWORD | dwInternalID |
*
* Internal joystick id. The device driver manages
* internal IDs.
*
* @parm LPVOID | lpReserved |
*
* Reserved for future use (HID).
*
* @returns
*
* <c S_OK> if the operation completed successfully.
*
* An error code if something is wrong.
*
*****************************************************************************/
STDMETHODIMP
CEffVxd_DeviceID(PDED pded, DWORD dwDIVer, DWORD dwExternalID, DWORD fBegin,
DWORD dwInternalID, LPVOID pvReserved)
{
PDVE this;
HRESULT hres;
EnterProcI(IDirectInputEffectDriver::VxD::DeviceID,
(_ "pxuuu", pded, dwDIVer, dwExternalID, fBegin, dwInternalID));
this = _thisPvNm(pded, ded);
dwDIVer;
dwExternalID;
fBegin;
dwInternalID;
pvReserved;
hres = S_OK;
ExitOleProcR();
return hres;
}
/*****************************************************************************
*
* @doc INTERNAL
*
* @func HRESULT | CEffVxd_Ioctl |
*
* Perform an IOCTL to VJOYD.
*
* @parm DWORD | dwIOCode |
*
* The function to perform.
*
* @parm PV | pvIn |
*
* Input arguments, the number of which depends on the
* function code.
*
* @returns
*
* <c S_OK> if the operation completed successfully.
*
* An error code if something is wrong.
*
*****************************************************************************/
STDMETHODIMP
CEffVxd_Ioctl(DWORD dwIOCode, PV pvIn)
{
HRESULT hres;
HRESULT hresFF;
EnterProc(CEffVxD_Ioctl, (_ "u", dwIOCode));
/*
* Once again, we rely on the fact that STDCALL passes
* parameters right to left, so our arguments are exactly
* in the form of a VXDFFIO structure.
*/
CAssertF(cbX(VXDFFIO) == cbX(dwIOCode) + cbX(pvIn));
CAssertF(FIELD_OFFSET(VXDFFIO, dwIOCode) == 0);
CAssertF(FIELD_OFFSET(VXDFFIO, pvArgs) == cbX(dwIOCode));
AssertF(cbSubPvPv(&pvIn, &dwIOCode) == cbX(dwIOCode));
hres = IoctlHw(IOCTL_JOY_FFIO, &dwIOCode, cbX(VXDFFIO),
&hresFF, cbX(hresFF));
if (SUCCEEDED(hres)) {
hres = hresFF;
}
ExitOleProc();
return hres;
}
/*****************************************************************************
*
* @doc INTERNAL
*
* @method HRESULT | CEffVxd | Escape |
*
* Escape to the driver.
* See <mf IDirectInputEffectDriver::Escape>
* for more information.
*
* @cwrap LPDIRECTINPUTEFFECTDRIVER | lpEffectDriver
*
* @parm DWORD | dwId |
*
* The joystick ID number being used.
*
* @parm DWORD | dwEffect |
*
* The effect at which the command is directed.
*
* @parm LPDIEFFESCAPE | pesc |
*
* Command block.
*
* @returns
*
* <c S_OK> if the operation completed successfully.
*
* An error code if something is wrong.
*
*****************************************************************************/
STDMETHODIMP
CEffVxd_Escape(PDED pded, DWORD dwId, DWORD dwEffect, LPDIEFFESCAPE pesc)
{
PDVE this;
HRESULT hres;
EnterProcI(IDirectInputEffectDriver::VxD::Escape,
(_ "puxx", pded, dwId, dwEffect, pesc->dwCommand));
this = _thisPvNm(pded, ded);
dwId;
dwEffect;
pesc;
hres = CEffVxd_Ioctl(FFIO_ESCAPE, &dwId);
ExitOleProcR();
return hres;
}
/*****************************************************************************
*
* @doc INTERNAL
*
* @method HRESULT | CEffVxd | SetGain |
*
* Set the overall device gain.
* See <mf IDirectInputEffectDriver::SetGain>
* for more information.
*
* @cwrap LPDIRECTINPUTEFFECTDRIVER | lpEffectDriver
*
* @parm DWORD | dwId |
*
* The joystick ID number being used.
*
* @parm DWORD | dwGain |
*
* The new gain value.
*
* @returns
*
* <c S_OK> if the operation completed successfully.
*
* An error code if something is wrong.
*
*****************************************************************************/
STDMETHODIMP
CEffVxd_SetGain(PDED pded, DWORD dwId, DWORD dwGain)
{
PDVE this;
HRESULT hres;
EnterProcI(IDirectInputEffectDriver::VxD::SetGain,
(_ "puu", pded, dwId, dwGain));
this = _thisPvNm(pded, ded);
dwId;
hres = CEffVxd_Ioctl(FFIO_SETGAIN, &dwId);
ExitOleProcR();
return hres;
}
/*****************************************************************************
*
* @doc INTERNAL
*
* @method HRESULT | CEffVxd | SetForceFeedbackState |
*
* Change the force feedback state for the device.
* See <mf IDirectInputEffectDriver::SetForceFeedbackState>
* for more information.
*
* @cwrap LPDIRECTINPUTEFFECTDRIVER | lpEffectDriver
*
* @parm DWORD | dwId |
*
* The external joystick number being addressed.
*
* @parm DWORD | dwState |
*
* New state, one of the <c DEV_*> values.
*
* @returns
* <c S_OK> on success.
*
* @devnote
*
* Semantics unclear.
*
*****************************************************************************/
STDMETHODIMP
CEffVxd_SetForceFeedbackState(PDED pded, DWORD dwId, DWORD dwState)
{
PDVE this;
HRESULT hres;
EnterProcI(IDirectInputEffectDriver::VxD::SetForceFeedbackState,
(_ "pux", pded, dwId, dwState));
this = _thisPvNm(pded, ded);
dwId;
dwState;
hres = CEffVxd_Ioctl(FFIO_SETFFSTATE, &dwId);
ExitOleProcR();
return hres;
}
/*****************************************************************************
*
* @doc INTERNAL
*
* @method HRESULT | CEffVxd | GetForceFeedbackState |
*
* Retrieve the force feedback state for the device.
* See <mf IDirectInputEffectDriver::GetForceFeedbackState>
* for more information.
*
* @cwrap LPDIRECTINPUTEFFECTDRIVER | lpEffectDriver
*
* @parm DWORD | dwId |
*
* The external joystick number being addressed.
*
* @parm LPDIDEVICESTATE | pds |
*
* Receives device state.
*
* @returns
* <c S_OK> on success.
*
* @devnote
*
* Semantics unclear.
*
*****************************************************************************/
STDMETHODIMP
CEffVxd_GetForceFeedbackState(PDED pded, DWORD dwId, LPDIDEVICESTATE pds)
{
PDVE this;
HRESULT hres;
EnterProcI(IDirectInputEffectDriver::VxD::GetForceFeedbackState,
(_ "pup", pded, dwId, pds));
this = _thisPvNm(pded, ded);
dwId;
pds;
hres = CEffVxd_Ioctl(FFIO_GETFFSTATE, &dwId);
ExitOleProcR();
return hres;
}
/*****************************************************************************
*
* @doc INTERNAL
*
* @method HRESULT | CEffVxd | DownloadEffect |
*
* Send an effect to the device.
* See <mf IDirectInputEffectDriver::SetGain>
* for more information.
*
* @cwrap LPDIRECTINPUTEFFECTDRIVER | lpEffectDriver
*
* @parm DWORD | dwId |
*
* The external joystick number being addressed.
*
* @parm DWORD | dwEffectId |
*
* Magic cookie dword that identifies the effect.
*
* @parm IN OUT LPDWORD | pdwEffect |
*
* The effect being modified.
*
* @parm LPCDIEFFECT | peff |
*
* The new parameters for the effect.
*
* @parm DWORD | dwFlags |
*
* Zero or more <c DIEP_*> flags.
*
* @returns
* <c S_OK> on success.
*
*****************************************************************************/
STDMETHODIMP
CEffVxd_DownloadEffect(PDED pded, DWORD dwId, DWORD dwEffectId,
LPDWORD pdwEffect, LPCDIEFFECT peff, DWORD fl)
{
PDVE this;
HRESULT hres;
EnterProcI(IDirectInputEffectDriver::VxD::DownloadEffect,
(_ "puxxpx", pded, dwId, dwEffectId, *pdwEffect, peff, fl));
this = _thisPvNm(pded, ded);
dwEffectId;
pdwEffect;
peff;
fl;
hres = CEffVxd_Ioctl(FFIO_DOWNLOADEFFECT, &dwId);
ExitOleProcPpv(pdwEffect);
return hres;
}
/*****************************************************************************
*
* @doc INTERNAL
*
* @method HRESULT | CEffVxd | DestroyEffect |
*
* Remove an effect from the device.
* See <mf IDirectInputEffectDriver::DestroyEffect>
* for more information.
*
* @cwrap LPDIRECTINPUTEFFECTDRIVER | lpEffectDriver
*
* @parm DWORD | dwId |
*
* The external joystick number being addressed.
*
* @parm DWORD | dwEffect |
*
* The effect to be destroyed.
*
* @returns
* <c S_OK> on success.
*
*****************************************************************************/
STDMETHODIMP
CEffVxd_DestroyEffect(PDED pded, DWORD dwId, DWORD dwEffect)
{
PDVE this;
HRESULT hres;
EnterProcI(IDirectInputEffectDriver::VxD::DestroyEffect,
(_ "pux", pded, dwId, dwEffect));
this = _thisPvNm(pded, ded);
dwEffect;
hres = CEffVxd_Ioctl(FFIO_DESTROYEFFECT, &dwId);
ExitOleProcR();
return hres;
}
/*****************************************************************************
*
* @doc INTERNAL
*
* @method HRESULT | CEffVxd | StartEffect |
*
* Begin playback of an effect.
* See <mf IDirectInputEffectDriver::StartEffect>
* for more information.
*
* @cwrap LPDIRECTINPUTEFFECTDRIVER | lpEffectDriver
*
* @parm DWORD | dwId |
*
* The external joystick number being addressed.
*
* @parm DWORD | dwEffect |
*
* The effect to be played.
*
* @parm DWORD | dwMode |
*
* How the effect is to affect other effects.
*
* @parm DWORD | dwCount |
*
* Number of times the effect is to be played.
*
* @returns
* <c S_OK> on success.
*
*****************************************************************************/
STDMETHODIMP
CEffVxd_StartEffect(PDED pded, DWORD dwId, DWORD dwEffect,
DWORD dwMode, DWORD dwCount)
{
PDVE this;
HRESULT hres;
EnterProcI(IDirectInputEffectDriver::VxD::StartEffect,
(_ "puxxu", pded, dwId, dwEffect, dwMode, dwCount));
this = _thisPvNm(pded, ded);
dwEffect;
dwMode;
dwCount;
hres = CEffVxd_Ioctl(FFIO_STARTEFFECT, &dwId);
ExitOleProcR();
return hres;
}
/*****************************************************************************
*
* @doc INTERNAL
*
* @method HRESULT | CEffVxd | StopEffect |
*
* Halt playback of an effect.
* See <mf IDirectInputEffectDriver::StartEffect>
* for more information.
*
* @cwrap LPDIRECTINPUTEFFECTDRIVER | lpEffectDriver
*
* @parm DWORD | dwId |
*
* The external joystick number being addressed.
*
* @parm DWORD | dwEffect |
*
* The effect to be stopped.
*
* @returns
* <c S_OK> on success.
*
*****************************************************************************/
STDMETHODIMP
CEffVxd_StopEffect(PDED pded, DWORD dwId, DWORD dwEffect)
{
PDVE this;
HRESULT hres;
EnterProcI(IDirectInputEffectDriver::VxD::StopEffect,
(_ "pux", pded, dwId, dwEffect));
this = _thisPvNm(pded, ded);
dwEffect;
hres = CEffVxd_Ioctl(FFIO_STOPEFFECT, &dwId);
ExitOleProcR();
return hres;
}
/*****************************************************************************
*
* @doc INTERNAL
*
* @method HRESULT | CEffVxd | GetEffectStatus |
*
* Obtain information about an effect.
* See <mf IDirectInputEffectDriver::StartEffect>
* for more information.
*
* @cwrap LPDIRECTINPUTEFFECTDRIVER | lpEffectDriver
*
* @parm DWORD | dwId |
*
* The external joystick number being addressed.
*
* @parm DWORD | dwEffect |
*
* The effect to be queried.
*
* @parm LPDWORD | pdwStatus |
*
* Receives the effect status.
*
* @returns
* <c S_OK> on success.
*
*****************************************************************************/
STDMETHODIMP
CEffVxd_GetEffectStatus(PDED pded, DWORD dwId, DWORD dwEffect,
LPDWORD pdwStatus)
{
PDVE this;
HRESULT hres;
EnterProcI(IDirectInputEffectDriver::VxD::StopEffect,
(_ "pux", pded, dwId, dwEffect));
this = _thisPvNm(pded, ded);
dwEffect;
pdwStatus;
hres = CEffVxd_Ioctl(FFIO_GETEFFECTSTATUS, &dwId);
ExitOleProcR();
return hres;
}
/*****************************************************************************
*
* @doc DDK
*
* @method HRESULT | CEffVxd | GetVersions |
*
* Obtain version information about the force feedback
* hardware and driver.
*
* @cwrap LPDIRECTINPUTEFFECTDRIVER | lpEffectDriver
*
* @parm LPDIDRIVERVERSIONS | pvers |
*
* A structure which should be filled in with version information
* describing the hardware, firmware, and driver.
*
* DirectInput will set the <e DIDRIVERVERSIONS.dwSize> field
* to sizeof(DIDRIVERVERSIONS) before calling this method.
*
* @returns
* <c S_OK> on success.
*
*****************************************************************************/
STDMETHODIMP
CEffVxd_GetVersions(PDED pded, LPDIDRIVERVERSIONS pvers)
{
PDVE this;
HRESULT hres;
EnterProcI(IDirectInputEffectDriver::VxD::GetVersions, (_ "pux", pded));
this = _thisPvNm(pded, ded);
/*
* Returning E_NOTIMPL causes DirectInput to ask the VxD for the same
* information.
*/
hres = E_NOTIMPL;
ExitOleProcR();
return hres;
}
/*****************************************************************************
*
* CEffVxd_New (constructor)
*
*****************************************************************************/
STDMETHODIMP
CEffVxd_New(PUNK punkOuter, RIID riid, PPV ppvObj)
{
HRESULT hres;
EnterProcI(IDirectInputEffectDriver::VxD::<constructor>,
(_ "Gp", riid, ppvObj));
hres = Common_NewRiid(CEffVxd, punkOuter, riid, ppvObj);
if (SUCCEEDED(hres)) {
PDVE this;
if (Num_Interfaces(CEffVxd) == 1) {
this = _thisPvNm(*ppvObj, ded);
} else {
this = _thisPv(*ppvObj);
}
/* No initialization needed */
}
ExitOleProcPpvR(ppvObj);
return hres;
}
/*****************************************************************************
*
* The long-awaited vtbls and templates
*
*****************************************************************************/
#pragma BEGIN_CONST_DATA
#define CEffVxd_Signature 0x46454556 /* "VEFF" */
Primary_Interface_Begin(CEffVxd, IDirectInputEffectDriver)
CEffVxd_DeviceID,
CEffVxd_GetVersions,
CEffVxd_Escape,
CEffVxd_SetGain,
CEffVxd_SetForceFeedbackState,
CEffVxd_GetForceFeedbackState,
CEffVxd_DownloadEffect,
CEffVxd_DestroyEffect,
CEffVxd_StartEffect,
CEffVxd_StopEffect,
CEffVxd_GetEffectStatus,
Primary_Interface_End(CEffVxd, IDirectInputEffectDriver)
#endif /* ndef WINNT */