reactos/win32ss/user/ntuser/ntuser.c

   1 /*
   2  *  COPYRIGHT:        See COPYING in the top level directory
   3  *  PROJECT:          ReactOS kernel
   4  *  PURPOSE:          ntuser init. and main funcs.
   5  *  FILE:             win32ss/user/ntuser/ntuser.c
   6  */
   7
   8 #include <win32k.h>
   9 DBG_DEFAULT_CHANNEL(UserMisc);
  10
  11 BOOL FASTCALL RegisterControlAtoms(VOID);
  12
  13 /* GLOBALS ********************************************************************/
  14
  15 PTHREADINFO gptiCurrent = NULL;
  16 PPROCESSINFO gppiInputProvider = NULL;
  17 ERESOURCE UserLock;
  18 ATOM AtomMessage;       // Window Message atom.
  19 ATOM AtomWndObj;        // Window Object atom.
  20 ATOM AtomLayer;         // Window Layer atom.
  21 ATOM AtomFlashWndState; // Window Flash State atom.
  22 ATOM AtomDDETrack;      // Window DDE Tracking atom.
  23 ATOM AtomQOS;           // Window DDE Quality of Service atom.
  24 HINSTANCE hModClient = NULL;
  25 BOOL ClientPfnInit = FALSE;
  26 ATOM gaGuiConsoleWndClass;
  27
  28 /* PRIVATE FUNCTIONS **********************************************************/
  29
  30 static
  31 NTSTATUS FASTCALL
  32 InitUserAtoms(VOID)
  33 {
  34     RegisterControlAtoms();
  35
  36     gpsi->atomSysClass[ICLS_MENU]      = 32768;
  37     gpsi->atomSysClass[ICLS_DESKTOP]   = 32769;
  38     gpsi->atomSysClass[ICLS_DIALOG]    = 32770;
  39     gpsi->atomSysClass[ICLS_SWITCH]    = 32771;
  40     gpsi->atomSysClass[ICLS_ICONTITLE] = 32772;
  41     gpsi->atomSysClass[ICLS_TOOLTIPS]  = 32774;
  42
  43     /* System Message Atom */
  44     AtomMessage = IntAddGlobalAtom(L"Message", TRUE);
  45     gpsi->atomSysClass[ICLS_HWNDMESSAGE] = AtomMessage;
  46
  47     /* System Context Help Id Atom */
  48     gpsi->atomContextHelpIdProp = IntAddGlobalAtom(L"SysCH", TRUE);
  49
  50     gpsi->atomIconSmProp = IntAddGlobalAtom(L"SysICS", TRUE);
  51     gpsi->atomIconProp   = IntAddGlobalAtom(L"SysIC", TRUE);
  52
  53     gpsi->atomFrostedWindowProp = IntAddGlobalAtom(L"SysFrostedWindow", TRUE);
  54
  55     AtomDDETrack = IntAddGlobalAtom(L"SysDT", TRUE);
  56     AtomQOS      = IntAddGlobalAtom(L"SysQOS", TRUE);
  57
  58     /*
  59      * FIXME: AddPropW uses the global kernel atom table, thus leading to conflicts if we use
  60      * the win32k atom table for this one. What is the right thing to do ?
  61      */
  62     // AtomWndObj = IntAddGlobalAtom(L"SysWNDO", TRUE);
  63     NtAddAtom(L"SysWNDO", 14, &AtomWndObj);
  64
  65     AtomLayer = IntAddGlobalAtom(L"SysLayer", TRUE);
  66     AtomFlashWndState = IntAddGlobalAtom(L"FlashWState", TRUE);
  67
  68     return STATUS_SUCCESS;
  69 }
  70
  71 /* FUNCTIONS ******************************************************************/
  72
  73 INIT_FUNCTION
  74 NTSTATUS
  75 NTAPI
  76 InitUserImpl(VOID)
  77 {
  78     NTSTATUS Status;
  79
  80     ExInitializeResourceLite(&UserLock);
  81
  82     if (!UserCreateHandleTable())
  83     {
  84         ERR("Failed creating handle table\n");
  85         return STATUS_INSUFFICIENT_RESOURCES;
  86     }
  87
  88     Status = InitSessionImpl();
  89     if (!NT_SUCCESS(Status))
  90     {
  91         ERR("Error init session impl.\n");
  92         return Status;
  93     }
  94
  95     InitUserAtoms();
  96
  97     InitSysParams();
  98
  99     return STATUS_SUCCESS;
 100 }
 101
 102 NTSTATUS
 103 NTAPI
 104 InitVideo();
 105
 106 NTSTATUS
 107 NTAPI
 108 UserInitialize(VOID)
 109 {
 110     static const DWORD wPattern55AA[] = /* 32 bit aligned */
 111     { 0x55555555, 0xaaaaaaaa, 0x55555555, 0xaaaaaaaa,
 112       0x55555555, 0xaaaaaaaa, 0x55555555, 0xaaaaaaaa };
 113     HBITMAP hPattern55AABitmap = NULL;
 114     NTSTATUS Status;
 115
 116     NT_ASSERT(PsGetCurrentThreadWin32Thread() != NULL);
 117
 118 // Create Event for Disconnect Desktop.
 119
 120     Status = UserCreateWinstaDirectory();
 121     if (!NT_SUCCESS(Status)) return Status;
 122
 123     /* Initialize Video */
 124     Status = InitVideo();
 125     if (!NT_SUCCESS(Status)) return Status;
 126
 127 // {
 128 //     DrvInitConsole.
 129 //     DrvChangeDisplaySettings.
 130 //     Update Shared Device Caps.
 131 //     Initialize User Screen.
 132 // }
 133
 134 // Set Global SERVERINFO Error flags.
 135 // Load Resources.
 136
 137     NtUserUpdatePerUserSystemParameters(0, TRUE);
 138
 139     if (gpsi->hbrGray == NULL)
 140     {
 141         hPattern55AABitmap = GreCreateBitmap(8, 8, 1, 1, (LPBYTE)wPattern55AA);
 142         if (hPattern55AABitmap == NULL)
 143             return STATUS_INSUFFICIENT_RESOURCES;
 144
 145         //NT_VERIFY(GreSetBitmapOwner(hPattern55AABitmap, GDI_OBJ_HMGR_PUBLIC));
 146         gpsi->hbrGray = IntGdiCreatePatternBrush(hPattern55AABitmap);
 147         GreDeleteObject(hPattern55AABitmap);
 148         if (gpsi->hbrGray == NULL)
 149             return STATUS_INSUFFICIENT_RESOURCES;
 150     }
 151
 152     return STATUS_SUCCESS;
 153 }
 154
 155 /*
 156  * Called from usersrv.
 157  */
 158 NTSTATUS
 159 APIENTRY
 160 NtUserInitialize(
 161     DWORD  dwWinVersion,
 162     HANDLE hPowerRequestEvent,
 163     HANDLE hMediaRequestEvent)
 164 {
 165     NTSTATUS Status;
 166
 167     TRACE("Enter NtUserInitialize(%lx, %p, %p)\n",
 168           dwWinVersion, hPowerRequestEvent, hMediaRequestEvent);
 169
 170     /* Check if we are already initialized */
 171     if (gpepCSRSS)
 172         return STATUS_UNSUCCESSFUL;
 173
 174     /* Check Windows USER subsystem version */
 175     if (dwWinVersion != USER_VERSION)
 176     {
 177         // FIXME: Should bugcheck!
 178         return STATUS_UNSUCCESSFUL;
 179     }
 180
 181     /* Acquire exclusive lock */
 182     UserEnterExclusive();
 183
 184     /* Save the EPROCESS of CSRSS */
 185     InitCsrProcess(/*PsGetCurrentProcess()*/);
 186
 187 // Initialize Power Request List (use hPowerRequestEvent).
 188 // Initialize Media Change (use hMediaRequestEvent).
 189
 190 // InitializeGreCSRSS();
 191 // {
 192 //    Startup DxGraphics.
 193 //    calls ** UserGetLanguageID() and sets it **.
 194 //    Enables Fonts drivers, Initialize Font table & Stock Fonts.
 195 // }
 196
 197     /* Initialize USER */
 198     Status = UserInitialize();
 199
 200     /* Return */
 201     UserLeave();
 202     return Status;
 203 }
 204
 205
 206 /*
 207 RETURN
 208    True if current thread owns the lock (possibly shared)
 209 */
 210 BOOL FASTCALL UserIsEntered(VOID)
 211 {
 212     return ExIsResourceAcquiredExclusiveLite(&UserLock) ||
 213            ExIsResourceAcquiredSharedLite(&UserLock);
 214 }
 215
 216 BOOL FASTCALL UserIsEnteredExclusive(VOID)
 217 {
 218     return ExIsResourceAcquiredExclusiveLite(&UserLock);
 219 }
 220
 221 VOID FASTCALL CleanupUserImpl(VOID)
 222 {
 223     ExDeleteResourceLite(&UserLock);
 224 }
 225
 226 VOID FASTCALL UserEnterShared(VOID)
 227 {
 228     KeEnterCriticalRegion();
 229     ExAcquireResourceSharedLite(&UserLock, TRUE);
 230 }
 231
 232 VOID FASTCALL UserEnterExclusive(VOID)
 233 {
 234     ASSERT_NOGDILOCKS();
 235     KeEnterCriticalRegion();
 236     ExAcquireResourceExclusiveLite(&UserLock, TRUE);
 237     gptiCurrent = PsGetCurrentThreadWin32Thread();
 238 }
 239
 240 VOID FASTCALL UserLeave(VOID)
 241 {
 242     ASSERT_NOGDILOCKS();
 243     ASSERT(UserIsEntered());
 244     ExReleaseResourceLite(&UserLock);
 245     KeLeaveCriticalRegion();
 246 }
 247
 248 /* EOF */