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:             subsystems/win32/win32k/ntuser/ntuser.c
   6  */
   7
   8 #include <win32k.h>
   9 DBG_DEFAULT_CHANNEL(UserMisc);
  10
  11 /* GLOBALS *******************************************************************/
  12
  13 PTHREADINFO gptiCurrent = NULL;
  14 PPROCESSINFO gppiInputProvider = NULL;
  15 ERESOURCE UserLock;
  16 ATOM AtomMessage; // Window Message atom.
  17 ATOM AtomWndObj;  // Window Object atom.
  18 ATOM AtomLayer;   // Window Layer atom.
  19 ATOM AtomFlashWndState; // Window Flash State atom.
  20 BOOL gbInitialized;
  21 HINSTANCE hModClient = NULL;
  22 BOOL ClientPfnInit = FALSE;
  23 PEPROCESS gpepCSRSS = NULL;
  24
  25 /* PRIVATE FUNCTIONS *********************************************************/
  26
  27 static
  28 NTSTATUS FASTCALL
  29 InitUserAtoms(VOID)
  30 {
  31
  32   gpsi->atomSysClass[ICLS_MENU]      = 32768;
  33   gpsi->atomSysClass[ICLS_DESKTOP]   = 32769;
  34   gpsi->atomSysClass[ICLS_DIALOG]    = 32770;
  35   gpsi->atomSysClass[ICLS_SWITCH]    = 32771;
  36   gpsi->atomSysClass[ICLS_ICONTITLE] = 32772;
  37   gpsi->atomSysClass[ICLS_TOOLTIPS]  = 32774;
  38
  39   /* System Message Atom */
  40   AtomMessage = IntAddGlobalAtom(L"Message", TRUE);
  41   gpsi->atomSysClass[ICLS_HWNDMESSAGE] = AtomMessage;
  42
  43   /* System Context Help Id Atom */
  44   gpsi->atomContextHelpIdProp = IntAddGlobalAtom(L"SysCH", TRUE);
  45
  46   gpsi->atomIconSmProp = IntAddGlobalAtom(L"SysICS", TRUE);
  47   gpsi->atomIconProp = IntAddGlobalAtom(L"SysIC", TRUE);
  48
  49   gpsi->atomFrostedWindowProp = IntAddGlobalAtom(L"SysFrostedWindow", TRUE);
  50
  51   AtomWndObj = IntAddGlobalAtom(L"SysWNDO", TRUE);
  52   AtomLayer = IntAddGlobalAtom(L"SysLayer", TRUE);
  53   AtomFlashWndState = IntAddGlobalAtom(L"FlashWState", TRUE);
  54
  55   return STATUS_SUCCESS;
  56 }
  57
  58 /* FUNCTIONS *****************************************************************/
  59
  60 INIT_FUNCTION
  61 NTSTATUS
  62 NTAPI
  63 InitUserImpl(VOID)
  64 {
  65    NTSTATUS Status;
  66
  67    ExInitializeResourceLite(&UserLock);
  68
  69    if (!UserCreateHandleTable())
  70    {
  71       ERR("Failed creating handle table\n");
  72       return STATUS_INSUFFICIENT_RESOURCES;
  73    }
  74
  75    Status = InitSessionImpl();
  76    if (!NT_SUCCESS(Status))
  77    {
  78       ERR("Error init session impl.\n");
  79       return Status;
  80    }
  81
  82    InitUserAtoms();
  83
  84    InitSysParams();
  85
  86    return STATUS_SUCCESS;
  87 }
  88
  89 NTSTATUS
  90 NTAPI
  91 InitVideo();
  92
  93 NTSTATUS
  94 NTAPI
  95 UserInitialize(
  96   HANDLE  hPowerRequestEvent,
  97   HANDLE  hMediaRequestEvent)
  98 {
  99     static const DWORD wPattern55AA[] = /* 32 bit aligned */
 100     { 0x55555555, 0xaaaaaaaa, 0x55555555, 0xaaaaaaaa,
 101       0x55555555, 0xaaaaaaaa, 0x55555555, 0xaaaaaaaa };
 102     HBITMAP hPattern55AABitmap = NULL;
 103     NTSTATUS Status;
 104
 105 // Set W32PF_Flags |= (W32PF_READSCREENACCESSGRANTED | W32PF_IOWINSTA)
 106 // Create Event for Diconnect Desktop.
 107
 108     Status = UserCreateWinstaDirectoy();
 109     if (!NT_SUCCESS(Status)) return Status;
 110
 111     /* Initialize Video. */
 112     Status = InitVideo();
 113     if (!NT_SUCCESS(Status)) return Status;
 114
 115 // {
 116 //     DrvInitConsole.
 117 //     DrvChangeDisplaySettings.
 118 //     Update Shared Device Caps.
 119 //     Initialize User Screen.
 120 // }
 121 // Create ThreadInfo for this Thread!
 122 // {
 123
 124     GetW32ThreadInfo();
 125
 126 //    Callback to User32 Client Thread Setup
 127
 128     co_IntClientThreadSetup();
 129
 130 // }
 131 // Set Global SERVERINFO Error flags.
 132 // Load Resources.
 133
 134     NtUserUpdatePerUserSystemParameters(0, TRUE);
 135
 136     if (gpsi->hbrGray == NULL)
 137     {
 138        hPattern55AABitmap = GreCreateBitmap(8, 8, 1, 1, (LPBYTE)wPattern55AA);
 139        gpsi->hbrGray = IntGdiCreatePatternBrush(hPattern55AABitmap);
 140        GreDeleteObject(hPattern55AABitmap);
 141        GreSetBrushOwner(gpsi->hbrGray, GDI_OBJ_HMGR_PUBLIC);
 142     }
 143
 144     return STATUS_SUCCESS;
 145 }
 146
 147 /*
 148     Called from win32csr.
 149  */
 150 NTSTATUS
 151 APIENTRY
 152 NtUserInitialize(
 153   DWORD   dwWinVersion,
 154   HANDLE  hPowerRequestEvent,
 155   HANDLE  hMediaRequestEvent)
 156 {
 157     NTSTATUS Status;
 158
 159     ERR("Enter NtUserInitialize(%lx, %p, %p)\n",
 160             dwWinVersion, hPowerRequestEvent, hMediaRequestEvent);
 161
 162     /* Check the Windows version */
 163     if (dwWinVersion != 0)
 164     {
 165         return STATUS_UNSUCCESSFUL;
 166     }
 167
 168     /* Acquire exclusive lock */
 169     UserEnterExclusive();
 170
 171     /* Check if we are already initialized */
 172     if (gbInitialized)
 173     {
 174         UserLeave();
 175         return STATUS_UNSUCCESSFUL;
 176     }
 177
 178     /* Save EPROCESS of CSRSS */
 179     gpepCSRSS = PsGetCurrentProcess();
 180
 181 // Initialize Power Request List.
 182 // Initialize Media Change.
 183 // InitializeGreCSRSS();
 184 // {
 185 //    Startup DxGraphics.
 186 //    calls ** UserGetLanguageID() and sets it **.
 187 //    Enables Fonts drivers, Initialize Font table & Stock Fonts.
 188 // }
 189
 190     /* Initialize USER */
 191     Status = UserInitialize(hPowerRequestEvent, hMediaRequestEvent);
 192
 193     /* Set us as initialized */
 194     gbInitialized = TRUE;
 195
 196     /* Return */
 197     UserLeave();
 198     return Status;
 199 }
 200
 201
 202 /*
 203 RETURN
 204    True if current thread owns the lock (possibly shared)
 205 */
 206 BOOL FASTCALL UserIsEntered(VOID)
 207 {
 208    return ExIsResourceAcquiredExclusiveLite(&UserLock)
 209       || ExIsResourceAcquiredSharedLite(&UserLock);
 210 }
 211
 212 BOOL FASTCALL UserIsEnteredExclusive(VOID)
 213 {
 214    return ExIsResourceAcquiredExclusiveLite(&UserLock);
 215 }
 216
 217 VOID FASTCALL CleanupUserImpl(VOID)
 218 {
 219    ExDeleteResourceLite(&UserLock);
 220 }
 221
 222 VOID FASTCALL UserEnterShared(VOID)
 223 {
 224    KeEnterCriticalRegion();
 225    ExAcquireResourceSharedLite(&UserLock, TRUE);
 226 }
 227
 228 VOID FASTCALL UserEnterExclusive(VOID)
 229 {
 230    ASSERT_NOGDILOCKS();
 231    KeEnterCriticalRegion();
 232    ExAcquireResourceExclusiveLite(&UserLock, TRUE);
 233    gptiCurrent = PsGetCurrentThreadWin32Thread();
 234 }
 235
 236 VOID FASTCALL UserLeave(VOID)
 237 {
 238    ASSERT_NOGDILOCKS();
 239    ExReleaseResourceLite(&UserLock);
 240    KeLeaveCriticalRegion();
 241 }