dinput_main.c

ReactOS是一些高手根据Windows XP的内核编写出的类XP。内核实现机理和API函数调用几乎相同。甚至可以兼容XP的程序。喜欢研究系统内核的人可以看一看。

/*		DirectInput
 *
 * Copyright 1998 Marcus Meissner
 * Copyright 1998,1999 Lionel Ulmer
 * Copyright 2000-2002 TransGaming Technologies Inc.
 *
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */
/* Status:
 *
 * - Tomb Raider 2 Demo:
 *   Playable using keyboard only.
 * - WingCommander Prophecy Demo:
 *   Doesn't get Input Focus.
 *
 * - Fallout : works great in X and DGA mode
 */

#include "config.h"
#include <assert.h>
#include <stdarg.h>
#include <string.h>

#define COBJMACROS

#include "wine/debug.h"
#include "wine/unicode.h"
#include "windef.h"
#include "winbase.h"
#include "winuser.h"
#include "winerror.h"
#include "dinput_private.h"

WINE_DEFAULT_DEBUG_CHANNEL(dinput);

static const IDirectInput7AVtbl ddi7avt;
static const IDirectInput7WVtbl ddi7wvt;
static const IDirectInput8AVtbl ddi8avt;
static const IDirectInput8WVtbl ddi8wvt;

static const struct dinput_device *dinput_devices[] =
{
    &mouse_device,
    &keyboard_device,
    &joystick_linuxinput_device,
    &joystick_linux_device
};
#define NB_DINPUT_DEVICES (sizeof(dinput_devices)/sizeof(dinput_devices[0]))

HINSTANCE DINPUT_instance = NULL;

BOOL WINAPI DllMain( HINSTANCE inst, DWORD reason, LPVOID reserv)
{
    switch(reason)
    {
      case DLL_PROCESS_ATTACH:
        DisableThreadLibraryCalls(inst);
        DINPUT_instance = inst;
        break;
      case DLL_PROCESS_DETACH:
        break;
    }
    return TRUE;
}


/******************************************************************************
 *	DirectInputCreateEx (DINPUT.@)
 */
HRESULT WINAPI DirectInputCreateEx(
	HINSTANCE hinst, DWORD dwVersion, REFIID riid, LPVOID *ppDI,
	LPUNKNOWN punkOuter) 
{
	IDirectInputImpl* This;

	TRACE("(%p,%04lx,%s,%p,%p)\n", hinst,dwVersion,debugstr_guid(riid),ppDI,punkOuter);

	if (IsEqualGUID(&IID_IDirectInputA,riid) ||
	    IsEqualGUID(&IID_IDirectInput2A,riid) ||
	    IsEqualGUID(&IID_IDirectInput7A,riid)) {
	  This = HeapAlloc(GetProcessHeap(),0,sizeof(IDirectInputImpl));
	  This->lpVtbl = &ddi7avt;
	  This->ref = 1;
	  This->dwVersion = dwVersion; 
	  *ppDI = This;

	  return DI_OK;
	}

	if (IsEqualGUID(&IID_IDirectInputW,riid) ||
	    IsEqualGUID(&IID_IDirectInput2W,riid) ||
	    IsEqualGUID(&IID_IDirectInput7W,riid)) {
	  This = HeapAlloc(GetProcessHeap(),0,sizeof(IDirectInputImpl));
	  This->lpVtbl = &ddi7wvt;
	  This->ref = 1;
	  This->dwVersion = dwVersion; 
	  *ppDI = This;

	  return DI_OK;
	}

	if (IsEqualGUID(&IID_IDirectInput8A,riid)) {
	  This = HeapAlloc(GetProcessHeap(),0,sizeof(IDirectInputImpl));
	  This->lpVtbl = &ddi8avt;
	  This->ref = 1;
	  This->dwVersion = dwVersion; 
	  *ppDI = This;

	  return DI_OK;
	}

	if (IsEqualGUID(&IID_IDirectInput8W,riid)) {
	  This = HeapAlloc(GetProcessHeap(),0,sizeof(IDirectInputImpl));
	  This->lpVtbl = &ddi8wvt;
	  This->ref = 1;
	  This->dwVersion = dwVersion; 
	  *ppDI = This;

	  return DI_OK;
	}

	return DIERR_OLDDIRECTINPUTVERSION;
}

/******************************************************************************
 *	DirectInputCreateA (DINPUT.@)
 */
HRESULT WINAPI DirectInputCreateA(HINSTANCE hinst, DWORD dwVersion, LPDIRECTINPUTA *ppDI, LPUNKNOWN punkOuter)
{
	IDirectInputImpl* This;
	TRACE("(0x%08lx,%04lx,%p,%p)\n", (DWORD)hinst,dwVersion,ppDI,punkOuter);
	This = HeapAlloc(GetProcessHeap(),0,sizeof(IDirectInputImpl));
	This->lpVtbl = &ddi7avt;
	This->ref = 1;
	This->dwVersion = dwVersion; 
	*ppDI = (IDirectInputA*)This;
	return 0;

}

/******************************************************************************
 *	DirectInputCreateW (DINPUT.@)
 */
HRESULT WINAPI DirectInputCreateW(HINSTANCE hinst, DWORD dwVersion, LPDIRECTINPUTW *ppDI, LPUNKNOWN punkOuter)
{
	IDirectInputImpl* This;
	TRACE("(0x%08lx,%04lx,%p,%p)\n", (DWORD)hinst,dwVersion,ppDI,punkOuter);
	This = HeapAlloc(GetProcessHeap(),0,sizeof(IDirectInputImpl));
	This->lpVtbl = &ddi7wvt;
	This->ref = 1;
	This->dwVersion = dwVersion; 
	*ppDI = (IDirectInputW*)This;
	return 0;
}

static const char *_dump_DIDEVTYPE_value(DWORD dwDevType) {
    switch (dwDevType) {
        case 0: return "All devices";
	case DIDEVTYPE_MOUSE: return "DIDEVTYPE_MOUSE";
	case DIDEVTYPE_KEYBOARD: return "DIDEVTYPE_KEYBOARD";
	case DIDEVTYPE_JOYSTICK: return "DIDEVTYPE_JOYSTICK";
	case DIDEVTYPE_DEVICE: return "DIDEVTYPE_DEVICE";
	default: return "Unknown";
    }
}

static void _dump_EnumDevices_dwFlags(DWORD dwFlags) {
    if (TRACE_ON(dinput)) {
	unsigned int   i;
	static const struct {
	    DWORD       mask;
	    const char  *name;
	} flags[] = {
#define FE(x) { x, #x}
	    FE(DIEDFL_ALLDEVICES),
	    FE(DIEDFL_ATTACHEDONLY),
	    FE(DIEDFL_FORCEFEEDBACK),
	    FE(DIEDFL_INCLUDEALIASES),
	    FE(DIEDFL_INCLUDEPHANTOMS)
#undef FE
	};
	if (dwFlags == 0) {
	    DPRINTF("DIEDFL_ALLDEVICES");
	    return;
	}
	for (i = 0; i < (sizeof(flags) / sizeof(flags[0])); i++)
	    if (flags[i].mask & dwFlags)
		DPRINTF("%s ",flags[i].name);
    }
}

/******************************************************************************
 *	IDirectInputA_EnumDevices
 */
static HRESULT WINAPI IDirectInputAImpl_EnumDevices(
	LPDIRECTINPUT7A iface, DWORD dwDevType, LPDIENUMDEVICESCALLBACKA lpCallback,
	LPVOID pvRef, DWORD dwFlags)
{
    IDirectInputImpl *This = (IDirectInputImpl *)iface;
    DIDEVICEINSTANCEA devInstance;
    int i, j, r;
    
    TRACE("(this=%p,0x%04lx '%s',%p,%p,%04lx)\n",
	  This, dwDevType, _dump_DIDEVTYPE_value(dwDevType),
	  lpCallback, pvRef, dwFlags);
    TRACE(" flags: "); _dump_EnumDevices_dwFlags(dwFlags); TRACE("\n");

    for (i = 0; i < NB_DINPUT_DEVICES; i++) {
        if (!dinput_devices[i]->enum_deviceA) continue;
        for (j = 0, r = -1; r != 0; j++) {
	    devInstance.dwSize = sizeof(devInstance);
	    TRACE("  - checking device %d ('%s')\n", i, dinput_devices[i]->name);
	    if ((r = dinput_devices[i]->enum_deviceA(dwDevType, dwFlags, &devInstance, This->dwVersion, j))) {
	        if (lpCallback(&devInstance,pvRef) == DIENUM_STOP)
		    return 0;
	    }
	}
    }
    
    return 0;
}
/******************************************************************************
 *	IDirectInputW_EnumDevices
 */
static HRESULT WINAPI IDirectInputWImpl_EnumDevices(
	LPDIRECTINPUT7W iface, DWORD dwDevType, LPDIENUMDEVICESCALLBACKW lpCallback,
	LPVOID pvRef, DWORD dwFlags) 
{
    IDirectInputImpl *This = (IDirectInputImpl *)iface;
    DIDEVICEINSTANCEW devInstance;
    int i, j, r;
    
    TRACE("(this=%p,0x%04lx '%s',%p,%p,%04lx)\n",
	  This, dwDevType, _dump_DIDEVTYPE_value(dwDevType),
	  lpCallback, pvRef, dwFlags);
    TRACE(" flags: "); _dump_EnumDevices_dwFlags(dwFlags); TRACE("\n");

    for (i = 0; i < NB_DINPUT_DEVICES; i++) {
        if (!dinput_devices[i]->enum_deviceW) continue;
        for (j = 0, r = -1; r != 0; j++) {
	    devInstance.dwSize = sizeof(devInstance);
	    TRACE("  - checking device %d ('%s')\n", i, dinput_devices[i]->name);
	    if ((r = dinput_devices[i]->enum_deviceW(dwDevType, dwFlags, &devInstance, This->dwVersion, j))) {
	        if (lpCallback(&devInstance,pvRef) == DIENUM_STOP)
		    return 0;
	    }
	}
    }
    
    return 0;
}

static ULONG WINAPI IDirectInputAImpl_AddRef(LPDIRECTINPUT7A iface)
{
	IDirectInputImpl *This = (IDirectInputImpl *)iface;
	return InterlockedIncrement((&This->ref));
}

static ULONG WINAPI IDirectInputAImpl_Release(LPDIRECTINPUT7A iface)
{
	IDirectInputImpl *This = (IDirectInputImpl *)iface;
	ULONG ref;
	ref = InterlockedDecrement(&(This->ref));
	if (ref == 0)
		HeapFree(GetProcessHeap(),0,This);
	return ref;
}

static HRESULT WINAPI IDirectInputAImpl_QueryInterface(LPDIRECTINPUT7A iface, REFIID riid, LPVOID *ppobj) {
	IDirectInputImpl *This = (IDirectInputImpl *)iface;

	TRACE("(this=%p,%s,%p)\n",This,debugstr_guid(riid),ppobj);
	if (IsEqualGUID(&IID_IUnknown,riid) ||
	    IsEqualGUID(&IID_IDirectInputA,riid) ||
	    IsEqualGUID(&IID_IDirectInput2A,riid) ||
	    IsEqualGUID(&IID_IDirectInput7A,riid)) {
		IDirectInputAImpl_AddRef(iface);
		*ppobj = This;
		return 0;
	}
	TRACE("Unsupported interface !\n");
	return E_FAIL;
}

static HRESULT WINAPI IDirectInputWImpl_QueryInterface(LPDIRECTINPUT7W iface, REFIID riid, LPVOID *ppobj) {
	IDirectInputImpl *This = (IDirectInputImpl *)iface;

	TRACE("(this=%p,%s,%p)\n",This,debugstr_guid(riid),ppobj);
	if (IsEqualGUID(&IID_IUnknown,riid) ||
	    IsEqualGUID(&IID_IDirectInputW,riid) ||
	    IsEqualGUID(&IID_IDirectInput2W,riid) ||
	    IsEqualGUID(&IID_IDirectInput7W,riid)) {
		IDirectInputAImpl_AddRef((LPDIRECTINPUT7A) iface);
		*ppobj = This;
		return 0;
	}
	TRACE("Unsupported interface !\n");
	return E_FAIL;
}

static HRESULT WINAPI IDirectInputAImpl_CreateDevice(
	LPDIRECTINPUT7A iface,REFGUID rguid,LPDIRECTINPUTDEVICEA* pdev,
	LPUNKNOWN punk
) {
	IDirectInputImpl *This = (IDirectInputImpl *)iface;
	HRESULT ret_value = DIERR_DEVICENOTREG;
	int i;

	TRACE("(this=%p,%s,%p,%p)\n",This,debugstr_guid(rguid),pdev,punk);

	if (pdev == NULL) {
		WARN("invalid pointer: pdev == NULL\n");
		return E_POINTER;
	}

	if (rguid == NULL) {
		WARN("invalid pointer: rguid == NULL\n");
		return E_POINTER;
	}

	/* Loop on all the devices to see if anyone matches the given GUID */
	for (i = 0; i < NB_DINPUT_DEVICES; i++) {
	  HRESULT ret;
	  if (!dinput_devices[i]->create_deviceA) continue;
	  if ((ret = dinput_devices[i]->create_deviceA(This, rguid, NULL, pdev)) == DI_OK)
	    return DI_OK;

	  if (ret == DIERR_NOINTERFACE)
	    ret_value = DIERR_NOINTERFACE;
	}

	return ret_value;
}

static HRESULT WINAPI IDirectInputWImpl_CreateDevice(LPDIRECTINPUT7A iface, 
						     REFGUID rguid, LPDIRECTINPUTDEVICEW* pdev, LPUNKNOWN punk) {
        IDirectInputImpl *This = (IDirectInputImpl *)iface;
	HRESULT ret_value = DIERR_DEVICENOTREG;
	int i;