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dinput: Create single thread for mouse and keyboard hook.

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Put keyboard & mouse hook callbacks into separate thread.
Move few global variables into object. Delete no longer used crit section.
For hooks to work properly hook callback have to be in a thread
with message loop. Some games create separate threads just to handle
mouse and/or keyboard events that do not have message loop.
This commit is contained in:
Vitaliy Margolen 2006-03-18 11:26:37 -07:00 committed by Alexandre Julliard
parent 253a2d089c
commit e66e34ef7b
4 changed files with 200 additions and 101 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

138
dlls/dinput/device.c
View File

@ -32,9 +32,11 @@
#include "wine/unicode.h"
#include "windef.h"
#include "winbase.h"
#include "winuser.h"
#include "winerror.h"
#include "dinput.h"
#include "device_private.h"
#include "dinput_private.h"
WINE_DEFAULT_DEBUG_CHANNEL(dinput);
@ -898,3 +900,139 @@ HRESULT WINAPI IDirectInputDevice8WImpl_GetImageInfo(LPDIRECTINPUTDEVICE8W iface
return DI_OK;
}
/******************************************************************************
* DInput hook thread
*/
static LRESULT CALLBACK dinput_hook_WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
{
static HHOOK kbd_hook, mouse_hook;
BOOL res;
TRACE("got message %x %p %p\n", message, (LPVOID)wParam, (LPVOID)lParam);
switch (message)
{
case WM_USER+0x10:
if (wParam == WH_KEYBOARD_LL)
{
if (lParam)
{
if (kbd_hook) return 0;
kbd_hook = SetWindowsHookExW(WH_KEYBOARD_LL, (LPVOID)lParam, DINPUT_instance, 0);
return (LRESULT)kbd_hook;
}
else
{
if (!kbd_hook) return 0;
res = UnhookWindowsHookEx(kbd_hook);
kbd_hook = NULL;
return res;
}
}
else if (wParam == WH_MOUSE_LL)
{
if (lParam)
{
if (mouse_hook) return 0;
mouse_hook = SetWindowsHookExW(WH_MOUSE_LL, (LPVOID)lParam, DINPUT_instance, 0);
return (LRESULT)mouse_hook;
}
else
{
if (!mouse_hook) return 0;
res = UnhookWindowsHookEx(mouse_hook);
mouse_hook = NULL;
return res;
}
}
return 0;
case WM_DESTROY:
PostQuitMessage(0);
}
return DefWindowProcW(hWnd, message, wParam, lParam);
}
static HANDLE signal_event;
static DWORD WINAPI hook_thread_proc(void *param)
{
static const WCHAR classW[]={'H','o','o','k','_','L','L','_','C','L',0};
MSG msg;
WNDCLASSEXW wcex;
HWND hwnd;
memset(&wcex, 0, sizeof(wcex));
wcex.cbSize = sizeof(wcex);
wcex.lpfnWndProc = dinput_hook_WndProc;
wcex.lpszClassName = classW;
wcex.hInstance = GetModuleHandleW(0);
if (!RegisterClassExW(&wcex)) ERR("Error registering window class\n");
hwnd = CreateWindowExW(0, classW, NULL, 0, 0, 0, 0, 0, HWND_MESSAGE, NULL, NULL, 0);
*(HWND*)param = hwnd;
SetEvent(signal_event);
if (hwnd)
{
while (GetMessageW(&msg, 0, 0, 0))
{
TranslateMessage(&msg);
DispatchMessageW(&msg);
}
}
else ERR("Error creating message window\n");
DestroyWindow(hwnd);
UnregisterClassW(wcex.lpszClassName, wcex.hInstance);
return 0;
}
static CRITICAL_SECTION dinput_hook_crit;
static CRITICAL_SECTION_DEBUG dinput_critsect_debug =
{
0, 0, &dinput_hook_crit,
{ &dinput_critsect_debug.ProcessLocksList, &dinput_critsect_debug.ProcessLocksList },
0, 0, { (DWORD_PTR)(__FILE__ ": dinput_hook_crit") }
};
static CRITICAL_SECTION dinput_hook_crit = { &dinput_critsect_debug, -1, 0, 0, 0, 0 };
static HWND get_thread_hwnd(void)
{
static HANDLE hook_thread;
static HWND hook_thread_hwnd;
EnterCriticalSection(&dinput_hook_crit);
if (!hook_thread)
{
DWORD tid;
HWND hwnd;
signal_event = CreateEventW(NULL, FALSE, FALSE, NULL);
hook_thread = CreateThread(NULL, 0, hook_thread_proc, &hwnd, 0, &tid);
if (signal_event && hook_thread)
{
HANDLE handles[2];
handles[0] = signal_event;
handles[1] = hook_thread;
WaitForMultipleObjects(2, handles, FALSE, INFINITE);
}
CloseHandle(signal_event);
if (!(hook_thread_hwnd = hwnd))
{
/* Thread failed to create window - reset things so we could try again later */
CloseHandle(hook_thread);
hook_thread = 0;
}
}
LeaveCriticalSection(&dinput_hook_crit);
return hook_thread_hwnd;
}
HHOOK set_dinput_hook(int hook_id, LPVOID proc)
{
return (HHOOK)SendMessageW(get_thread_hwnd(), WM_USER+0x10, (WPARAM)hook_id, (LPARAM)proc);
}

2
dlls/dinput/device_private.h
View File

@ -52,6 +52,8 @@ extern void fill_DataFormat(void *out, const void *in, DataFormat *df) ;
extern DataFormat *create_DataFormat(const DIDATAFORMAT *wine_format, LPCDIDATAFORMAT asked_format, int *offset) ;
extern void release_DataFormat(DataFormat *df) ;
extern HHOOK set_dinput_hook(int hook_id, LPVOID proc);
/* Used to fill events in the queue */
#define GEN_EVENT(offset,data,xtime,seq) \
{ \

80
dlls/dinput/keyboard.c
View File

@ -78,37 +78,22 @@ static SysKeyboardImpl* current_lock = NULL;
static BYTE DInputKeyState[WINE_DINPUT_KEYBOARD_MAX_KEYS]; /* array for 'GetDeviceState' */
static CRITICAL_SECTION keyboard_crit;
static CRITICAL_SECTION_DEBUG critsect_debug =
{
0, 0, &keyboard_crit,
{ &critsect_debug.ProcessLocksList, &critsect_debug.ProcessLocksList },
0, 0, { (DWORD_PTR)(__FILE__ ": keyboard_crit") }
};
static CRITICAL_SECTION keyboard_crit = { &critsect_debug, -1, 0, 0, 0, 0 };
static LONG keyboard_users = 0;
static HHOOK keyboard_hook = NULL;
LRESULT CALLBACK KeyboardCallback( int code, WPARAM wparam, LPARAM lparam )
{
SysKeyboardImpl *This = (SysKeyboardImpl *)current_lock;
BYTE dik_code;
BOOL down;
DWORD timestamp;
KBDLLHOOKSTRUCT *hook = (KBDLLHOOKSTRUCT *)lparam;
BYTE new_diks;
TRACE("(%d,%d,%ld)\n", code, wparam, lparam);
/** returns now if not HC_ACTION */
if (code != HC_ACTION) return CallNextHookEx(keyboard_hook, code, wparam, lparam);
/* returns now if not HC_ACTION */
if (code != HC_ACTION) return CallNextHookEx(0, code, wparam, lparam);
{
dik_code = hook->scanCode;
if (hook->flags & LLKHF_EXTENDED) dik_code |= 0x80;
down = !(hook->flags & LLKHF_UP);
timestamp = hook->time;
}
/** returns now if key event already known */
new_diks = (down ? 0x80 : 0);
@ -117,34 +102,33 @@ LRESULT CALLBACK KeyboardCallback( int code, WPARAM wparam, LPARAM lparam )
DInputKeyState[dik_code] = new_diks;
TRACE(" setting %02X to %02X\n", dik_code, DInputKeyState[dik_code]);
if (current_lock != NULL) {
if (current_lock->hEvent) SetEvent(current_lock->hEvent);
if (This->hEvent) SetEvent(This->hEvent);
if (current_lock->buffer != NULL) {
if (This->buffer != NULL)
{
int n;
EnterCriticalSection(&(current_lock->crit));
EnterCriticalSection(&(This->crit));
n = (current_lock->start + current_lock->count) % current_lock->buffersize;
n = (This->start + This->count) % This->buffersize;
current_lock->buffer[n].dwOfs = dik_code;
current_lock->buffer[n].dwData = down ? 0x80 : 0;
current_lock->buffer[n].dwTimeStamp = timestamp;
current_lock->buffer[n].dwSequence = current_lock->dinput->evsequence++;
This->buffer[n].dwOfs = dik_code;
This->buffer[n].dwData = down ? 0x80 : 0;
This->buffer[n].dwTimeStamp = hook->time;
This->buffer[n].dwSequence = This->dinput->evsequence++;
TRACE("Adding event at offset %d : %ld - %ld - %ld - %ld\n", n,
current_lock->buffer[n].dwOfs, current_lock->buffer[n].dwData, current_lock->buffer[n].dwTimeStamp, current_lock->buffer[n].dwSequence);
This->buffer[n].dwOfs, This->buffer[n].dwData, This->buffer[n].dwTimeStamp, This->buffer[n].dwSequence);
if (current_lock->count == current_lock->buffersize) {
current_lock->start = ++current_lock->start % current_lock->buffersize;
current_lock->overflow = TRUE;
} else
current_lock->count++;
if (This->count == This->buffersize) {
This->start = ++This->start % This->buffersize;
This->overflow = TRUE;
}
else This->count++;
LeaveCriticalSection(&(current_lock->crit));
LeaveCriticalSection(&(This->crit));
}
}
return CallNextHookEx(keyboard_hook, code, wparam, lparam);
return CallNextHookEx(0, code, wparam, lparam);
}
static GUID DInput_Wine_Keyboard_GUID = { /* 0ab8648a-7735-11d2-8c73-71df54a96441 */
@ -241,7 +225,6 @@ static BOOL keyboarddev_enum_deviceW(DWORD dwDevType, DWORD dwFlags, LPDIDEVICEI
static SysKeyboardImpl *alloc_device(REFGUID rguid, const void *kvt, IDirectInputImpl *dinput)
{
SysKeyboardImpl* newDevice;
DWORD kbd_users;
newDevice = HeapAlloc(GetProcessHeap(),HEAP_ZERO_MEMORY,sizeof(SysKeyboardImpl));
newDevice->lpVtbl = kvt;
@ -250,13 +233,6 @@ static SysKeyboardImpl *alloc_device(REFGUID rguid, const void *kvt, IDirectInpu
newDevice->dinput = dinput;
InitializeCriticalSection(&(newDevice->crit));
EnterCriticalSection(&keyboard_crit);
kbd_users = InterlockedIncrement(&keyboard_users);
if (1 == kbd_users) {
keyboard_hook = SetWindowsHookExW( WH_KEYBOARD_LL, KeyboardCallback, DINPUT_instance, 0 );
}
LeaveCriticalSection(&keyboard_crit);
return newDevice;
}
@ -309,19 +285,11 @@ static ULONG WINAPI SysKeyboardAImpl_Release(LPDIRECTINPUTDEVICE8A iface)
{
SysKeyboardImpl *This = (SysKeyboardImpl *)iface;
ULONG ref;
DWORD kbd_users;
ref = InterlockedDecrement(&(This->ref));
if (ref)
return ref;
if (ref) return ref;
EnterCriticalSection(&keyboard_crit);
kbd_users = InterlockedDecrement(&keyboard_users);
if (0 == kbd_users) {
UnhookWindowsHookEx( keyboard_hook );
keyboard_hook = 0;
}
LeaveCriticalSection(&keyboard_crit);
set_dinput_hook(WH_KEYBOARD_LL, NULL);
/* Free the data queue */
HeapFree(GetProcessHeap(),0,This->buffer);
@ -563,7 +531,7 @@ static HRESULT WINAPI SysKeyboardAImpl_Acquire(LPDIRECTINPUTDEVICE8A iface)
This->buffer = NULL;
}
/*keyboard_hook = SetWindowsHookExW( WH_KEYBOARD_LL, KeyboardCallback, DINPUT_instance, 0 );*/
set_dinput_hook(WH_KEYBOARD_LL, KeyboardCallback);
return DI_OK;
}
@ -576,6 +544,8 @@ static HRESULT WINAPI SysKeyboardAImpl_Unacquire(LPDIRECTINPUTDEVICE8A iface)
if (This->acquired == 0)
return DI_NOEFFECT;
set_dinput_hook(WH_KEYBOARD_LL, NULL);
/* No more locks */
if (current_lock == This)
current_lock = NULL;

23
dlls/dinput/mouse.c
View File

@ -126,7 +126,6 @@ struct SysMouseImpl
LONG prevX, prevY;
/* These are used in case of relative -> absolute transitions */
POINT org_coords;
HHOOK hook;
HWND win;
DWORD dwCoopLevel;
POINT mapped_center;
@ -330,14 +329,10 @@ static ULONG WINAPI SysMouseAImpl_Release(LPDIRECTINPUTDEVICE8A iface)
if (ref)
return ref;
set_dinput_hook(WH_MOUSE_LL, NULL);
/* Free the data queue */
HeapFree(GetProcessHeap(),0,This->data_queue);
if (This->hook) {
UnhookWindowsHookEx( This->hook );
if (This->dwCoopLevel & DISCL_EXCLUSIVE)
ShowCursor(TRUE); /* show cursor */
}
DeleteCriticalSection(&(This->crit));
/* Free the DataFormat */
@ -426,7 +421,7 @@ static LRESULT CALLBACK dinput_mouse_hook( int code, WPARAM wparam, LPARAM lpara
static long last_event = 0;
int wdata;
if (code != HC_ACTION) return CallNextHookEx( This->hook, code, wparam, lparam );
if (code != HC_ACTION) return CallNextHookEx( 0, code, wparam, lparam );
EnterCriticalSection(&(This->crit));
dwCoop = This->dwCoopLevel;
@ -549,7 +544,7 @@ static LRESULT CALLBACK dinput_mouse_hook( int code, WPARAM wparam, LPARAM lpara
if (dwCoop & DISCL_NONEXCLUSIVE) {
/* Pass the events down to previous handlers (e.g. win32 input) */
ret = CallNextHookEx( This->hook, code, wparam, lparam );
ret = CallNextHookEx( 0, code, wparam, lparam );
} else {
/* Ignore message */
ret = 1;
@ -557,7 +552,6 @@ static LRESULT CALLBACK dinput_mouse_hook( int code, WPARAM wparam, LPARAM lpara
return ret;
}
static void dinput_window_check(SysMouseImpl* This) {
RECT rect;
DWORD centerX, centerY;
@ -615,7 +609,7 @@ static HRESULT WINAPI SysMouseAImpl_Acquire(LPDIRECTINPUTDEVICE8A iface)
/* Install our mouse hook */
if (This->dwCoopLevel & DISCL_EXCLUSIVE)
ShowCursor(FALSE); /* hide cursor */
This->hook = SetWindowsHookExA( WH_MOUSE_LL, dinput_mouse_hook, DINPUT_instance, 0 );
set_dinput_hook(WH_MOUSE_LL, dinput_mouse_hook);
/* Get the window dimension and find the center */
GetWindowRect(This->win, &rect);
@ -652,14 +646,9 @@ static HRESULT WINAPI SysMouseAImpl_Unacquire(LPDIRECTINPUTDEVICE8A iface)
return DI_NOEFFECT;
}
/* Reinstall previous mouse event handler */
if (This->hook) {
UnhookWindowsHookEx( This->hook );
This->hook = 0;
set_dinput_hook(WH_MOUSE_LL, NULL);
if (This->dwCoopLevel & DISCL_EXCLUSIVE)
ShowCursor(TRUE); /* show cursor */
}
/* No more locks */
if (current_lock == (IDirectInputDevice8A*) This)