reactos/subsys/win32k/objects/dc.c

   1 /*
   2  *  ReactOS W32 Subsystem
   3  *  Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003 ReactOS Team
   4  *
   5  *  This program is free software; you can redistribute it and/or modify
   6  *  it under the terms of the GNU General Public License as published by
   7  *  the Free Software Foundation; either version 2 of the License, or
   8  *  (at your option) any later version.
   9  *
  10  *  This program is distributed in the hope that it will be useful,
  11  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  *  GNU General Public License for more details.
  14  *
  15  *  You should have received a copy of the GNU General Public License
  16  *  along with this program; if not, write to the Free Software
  17  *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  18  */
  19 /* $Id: dc.c,v 1.141 2004/06/29 21:09:16 gvg Exp $
  20  *
  21  * DC.C - Device context functions
  22  *
  23  */
  24 #include <w32k.h>
  25
  26 #ifndef OBJ_COLORSPACE
  27 #define OBJ_COLORSPACE  (14)
  28 #endif
  29
  30 static GDIDEVICE PrimarySurface;
  31
  32 /* FIXME: DCs should probably be thread safe  */
  33
  34 /*
  35  * DC device-independent Get/SetXXX functions
  36  * (RJJ) swiped from WINE
  37  */
  38
  39 #define DC_GET_VAL( func_type, func_name, dc_field ) \
  40 func_type STDCALL  func_name( HDC hdc ) \
  41 {                                   \
  42   func_type  ft;                    \
  43   PDC  dc = DC_LockDc( hdc );  \
  44   if (!dc)                          \
  45   {                                 \
  46     SetLastWin32Error(ERROR_INVALID_HANDLE); \
  47     return 0;                       \
  48   }                                 \
  49   ft = dc->dc_field;                \
  50   DC_UnlockDc( hdc );                           \
  51   return ft;                        \
  52 }
  53
  54 /* DC_GET_VAL_EX is used to define functions returning a POINT or a SIZE. It is
  55  * important that the function has the right signature, for the implementation
  56  * we can do whatever we want.
  57  */
  58 #define DC_GET_VAL_EX( FuncName, ret_x, ret_y, type, ax, ay ) \
  59 VOID FASTCALL Int##FuncName ( PDC dc, LP##type pt) \
  60 { \
  61   ASSERT(dc); \
  62   ASSERT(pt); \
  63   pt->ax = dc->ret_x; \
  64   pt->ay = dc->ret_y; \
  65 } \
  66 BOOL STDCALL NtGdi##FuncName ( HDC hdc, LP##type pt ) \
  67 { \
  68   NTSTATUS Status; \
  69   type Safept; \
  70   PDC dc; \
  71   if(!pt) \
  72   { \
  73     SetLastWin32Error(ERROR_INVALID_PARAMETER); \
  74     return FALSE; \
  75   } \
  76   if(!(dc = DC_LockDc(hdc))) \
  77   { \
  78     SetLastWin32Error(ERROR_INVALID_HANDLE); \
  79     return FALSE; \
  80   } \
  81   Int##FuncName( dc, &Safept); \
  82   DC_UnlockDc(hdc); \
  83   Status = MmCopyToCaller(pt, &Safept, sizeof( type )); \
  84   if(!NT_SUCCESS(Status)) \
  85   { \
  86     SetLastNtError(Status); \
  87     return FALSE; \
  88   } \
  89   return TRUE; \
  90 }
  91
  92 #define DC_SET_MODE( func_name, dc_field, min_val, max_val ) \
  93 INT STDCALL  func_name( HDC hdc, INT mode ) \
  94 {                                           \
  95   INT  prevMode;                            \
  96   PDC  dc;                                  \
  97   if ((mode < min_val) || (mode > max_val)) \
  98   { \
  99     SetLastWin32Error(ERROR_INVALID_PARAMETER); \
 100     return 0;                               \
 101   } \
 102   dc = DC_LockDc ( hdc );              \
 103   if ( !dc )                                \
 104   { \
 105     SetLastWin32Error(ERROR_INVALID_HANDLE); \
 106     return 0;                               \
 107   } \
 108   prevMode = dc->dc_field;                  \
 109   dc->dc_field = mode;                      \
 110   DC_UnlockDc ( hdc );                    \
 111   return prevMode;                          \
 112 }
 113
 114
 115 //  ---------------------------------------------------------  File Statics
 116
 117 //  -----------------------------------------------------  Public Functions
 118
 119 BOOL STDCALL
 120 NtGdiCancelDC(HDC  hDC)
 121 {
 122   UNIMPLEMENTED;
 123 }
 124
 125 HDC STDCALL
 126 NtGdiCreateCompatableDC(HDC hDC)
 127 {
 128   PDC  NewDC, OrigDC;
 129   HBITMAP  hBitmap;
 130   HDC hNewDC, DisplayDC;
 131   HRGN hVisRgn;
 132   BITMAPOBJ *pb;
 133   UNICODE_STRING DriverName;
 134
 135   DisplayDC = NULL;
 136   if (hDC == NULL)
 137     {
 138       RtlInitUnicodeString(&DriverName, L"DISPLAY");
 139       DisplayDC = IntGdiCreateDC(&DriverName, NULL, NULL, NULL);
 140       if (NULL == DisplayDC)
 141         {
 142           return NULL;
 143         }
 144       hDC = DisplayDC;
 145     }
 146
 147   /*  Allocate a new DC based on the original DC's device  */
 148   OrigDC = DC_LockDc(hDC);
 149   if (NULL == OrigDC)
 150     {
 151       if (NULL != DisplayDC)
 152         {
 153           NtGdiDeleteDC(DisplayDC);
 154         }
 155       return NULL;
 156     }
 157   hNewDC = DC_AllocDC(&OrigDC->DriverName);
 158
 159   if (NULL == hNewDC)
 160     {
 161       DC_UnlockDc(hDC);
 162       if (NULL != DisplayDC)
 163         {
 164           NtGdiDeleteDC(DisplayDC);
 165         }
 166       return  NULL;
 167     }
 168   NewDC = DC_LockDc( hNewDC );
 169
 170   /* Copy information from original DC to new DC  */
 171   NewDC->hSelf = hNewDC;
 172
 173   NewDC->PDev = OrigDC->PDev;
 174   NewDC->DMW = OrigDC->DMW;
 175   memcpy(NewDC->FillPatternSurfaces,
 176          OrigDC->FillPatternSurfaces,
 177          sizeof OrigDC->FillPatternSurfaces);
 178   NewDC->GDIInfo = OrigDC->GDIInfo;
 179   NewDC->DevInfo = OrigDC->DevInfo;
 180   NewDC->w.bitsPerPixel = OrigDC->w.bitsPerPixel;
 181
 182   /* DriverName is copied in the AllocDC routine  */
 183   NewDC->DeviceDriver = OrigDC->DeviceDriver;
 184   NewDC->wndOrgX = OrigDC->wndOrgX;
 185   NewDC->wndOrgY = OrigDC->wndOrgY;
 186   NewDC->wndExtX = OrigDC->wndExtX;
 187   NewDC->wndExtY = OrigDC->wndExtY;
 188   NewDC->vportOrgX = OrigDC->vportOrgX;
 189   NewDC->vportOrgY = OrigDC->vportOrgY;
 190   NewDC->vportExtX = OrigDC->vportExtX;
 191   NewDC->vportExtY = OrigDC->vportExtY;
 192
 193   /* Create default bitmap */
 194   if (!(hBitmap = NtGdiCreateBitmap( 1, 1, 1, NewDC->w.bitsPerPixel, NULL )))
 195     {
 196       DC_UnlockDc( hDC );
 197       DC_UnlockDc( hNewDC );
 198       DC_FreeDC( hNewDC );
 199       if (NULL != DisplayDC)
 200         {
 201           NtGdiDeleteDC(DisplayDC);
 202         }
 203       return NULL;
 204     }
 205   NewDC->w.flags        = DC_MEMORY;
 206   NewDC->w.hBitmap      = hBitmap;
 207   NewDC->w.hFirstBitmap = hBitmap;
 208   NewDC->GDIDevice      = OrigDC->GDIDevice;
 209   pb = BITMAPOBJ_LockBitmap(hBitmap);
 210   NewDC->Surface = (HSURF)BitmapToSurf(pb, NewDC->GDIDevice);
 211   BITMAPOBJ_UnlockBitmap(hBitmap);
 212
 213   NewDC->w.hPalette = OrigDC->w.hPalette;
 214   NewDC->w.textColor = OrigDC->w.textColor;
 215   NewDC->w.textAlign = OrigDC->w.textAlign;
 216   NewDC->w.backgroundColor = OrigDC->w.backgroundColor;
 217   NewDC->w.backgroundMode = OrigDC->w.backgroundMode;
 218   DC_UnlockDc( hDC );
 219   if (NULL != DisplayDC)
 220     {
 221       NtGdiDeleteDC(DisplayDC);
 222     }
 223   DC_UnlockDc(hNewDC);
 224
 225   hVisRgn = NtGdiCreateRectRgn(0, 0, 1, 1);
 226   NtGdiSelectVisRgn(hNewDC, hVisRgn);
 227   NtGdiDeleteObject(hVisRgn);
 228
 229   DC_InitDC(hNewDC);
 230
 231   return hNewDC;
 232 }
 233
 234 static BOOL FASTCALL
 235 GetRegistryPath(PUNICODE_STRING RegistryPath, ULONG DisplayNumber)
 236 {
 237   RTL_QUERY_REGISTRY_TABLE QueryTable[2];
 238   WCHAR DeviceNameBuffer[20];
 239   NTSTATUS Status;
 240
 241   swprintf(DeviceNameBuffer, L"\\Device\\Video%d", DisplayNumber);
 242   RtlInitUnicodeString(RegistryPath, NULL);
 243   RtlZeroMemory(QueryTable, sizeof(QueryTable));
 244   QueryTable[0].Flags = RTL_QUERY_REGISTRY_REQUIRED | RTL_QUERY_REGISTRY_DIRECT;
 245   QueryTable[0].Name = DeviceNameBuffer;
 246   QueryTable[0].EntryContext = RegistryPath;
 247
 248   Status = RtlQueryRegistryValues(RTL_REGISTRY_DEVICEMAP,
 249                                   L"VIDEO",
 250                                   QueryTable,
 251                                   NULL,
 252                                   NULL);
 253   if (! NT_SUCCESS(Status))
 254     {
 255       DPRINT1("No \\Device\\Video%d value in DEVICEMAP\\VIDEO found\n", DisplayNumber);
 256       return FALSE;
 257     }
 258
 259   DPRINT("RegistryPath %S\n", RegistryPath->Buffer);
 260
 261   return TRUE;
 262 }
 263
 264 static BOOL FASTCALL
 265 FindDriverFileNames(PUNICODE_STRING DriverFileNames, ULONG DisplayNumber)
 266 {
 267   RTL_QUERY_REGISTRY_TABLE QueryTable[2];
 268   UNICODE_STRING RegistryPath;
 269   NTSTATUS Status;
 270
 271   if (! GetRegistryPath(&RegistryPath, DisplayNumber))
 272     {
 273       DPRINT("GetRegistryPath failed\n");
 274       return FALSE;
 275     }
 276
 277   RtlZeroMemory(QueryTable, sizeof(QueryTable));
 278   QueryTable[0].Flags = RTL_QUERY_REGISTRY_REQUIRED | RTL_QUERY_REGISTRY_DIRECT;
 279   QueryTable[0].Name = L"InstalledDisplayDrivers";
 280   QueryTable[0].EntryContext = DriverFileNames;
 281
 282   Status = RtlQueryRegistryValues(RTL_REGISTRY_ABSOLUTE,
 283                                   RegistryPath.Buffer,
 284                                   QueryTable,
 285                                   NULL,
 286                                   NULL);
 287   RtlFreeUnicodeString(&RegistryPath);
 288   if (! NT_SUCCESS(Status))
 289     {
 290       DPRINT1("No InstalledDisplayDrivers value in service entry found\n");
 291       return FALSE;
 292     }
 293
 294   DPRINT("DriverFileNames %S\n", DriverFileNames->Buffer);
 295
 296   return TRUE;
 297 }
 298
 299 static NTSTATUS STDCALL
 300 DevModeCallback(IN PWSTR ValueName,
 301                 IN ULONG ValueType,
 302                 IN PVOID ValueData,
 303                 IN ULONG ValueLength,
 304                 IN PVOID Context,
 305                 IN PVOID EntryContext)
 306 {
 307   PDEVMODEW DevMode = (PDEVMODEW) Context;
 308
 309   DPRINT("Found registry value for name %S: type %d, length %d\n",
 310          ValueName, ValueType, ValueLength);
 311
 312   if (REG_DWORD == ValueType && sizeof(DWORD) == ValueLength)
 313     {
 314       if (0 == _wcsicmp(ValueName, L"DefaultSettings.BitsPerPel"))
 315         {
 316           DevMode->dmBitsPerPel = *((DWORD *) ValueData);
 317         }
 318       else if (0 == _wcsicmp(ValueName, L"DefaultSettings.Flags"))
 319         {
 320           DevMode->dmDisplayFlags = *((DWORD *) ValueData);
 321         }
 322       else if (0 == _wcsicmp(ValueName, L"DefaultSettings.VRefresh"))
 323         {
 324           DevMode->dmDisplayFrequency = *((DWORD *) ValueData);
 325         }
 326       else if (0 == _wcsicmp(ValueName, L"DefaultSettings.XPanning"))
 327         {
 328           DevMode->dmPanningWidth = *((DWORD *) ValueData);
 329         }
 330       else if (0 == _wcsicmp(ValueName, L"DefaultSettings.XResolution"))
 331         {
 332           DevMode->dmPelsWidth = *((DWORD *) ValueData);
 333         }
 334       else if (0 == _wcsicmp(ValueName, L"DefaultSettings.YPanning"))
 335         {
 336           DevMode->dmPanningHeight = *((DWORD *) ValueData);
 337         }
 338       else if (0 == _wcsicmp(ValueName, L"DefaultSettings.YResolution"))
 339         {
 340           DevMode->dmPelsHeight = *((DWORD *) ValueData);
 341         }
 342     }
 343
 344   return STATUS_SUCCESS;
 345 }
 346
 347 static BOOL FASTCALL
 348 SetupDevMode(PDEVMODEW DevMode, ULONG DisplayNumber)
 349 {
 350   static WCHAR RegistryMachineSystem[] = L"\\REGISTRY\\MACHINE\\SYSTEM\\";
 351   static WCHAR CurrentControlSet[] = L"CURRENTCONTROLSET\\";
 352   static WCHAR ControlSet[] = L"CONTROLSET";
 353   static WCHAR Insert[] = L"Hardware Profiles\\Current\\System\\CurrentControlSet\\";
 354   UNICODE_STRING RegistryPath;
 355   BOOL Valid;
 356   PWCHAR AfterControlSet;
 357   PWCHAR ProfilePath;
 358   RTL_QUERY_REGISTRY_TABLE QueryTable[2];
 359   NTSTATUS Status;
 360
 361   if (! GetRegistryPath(&RegistryPath, DisplayNumber))
 362     {
 363       DPRINT("GetRegistryPath failed\n");
 364       return FALSE;
 365     }
 366
 367   Valid = (0 == _wcsnicmp(RegistryPath.Buffer, RegistryMachineSystem,
 368                           wcslen(RegistryMachineSystem)));
 369   if (Valid)
 370     {
 371       AfterControlSet = RegistryPath.Buffer + wcslen(RegistryMachineSystem);
 372       if (0 == _wcsnicmp(AfterControlSet, CurrentControlSet, wcslen(CurrentControlSet)))
 373         {
 374           AfterControlSet += wcslen(CurrentControlSet);
 375         }
 376       else if (0 == _wcsnicmp(AfterControlSet, ControlSet, wcslen(ControlSet)))
 377         {
 378           AfterControlSet += wcslen(ControlSet);
 379           while (L'0' <= *AfterControlSet && L'9' <= *AfterControlSet)
 380             {
 381               AfterControlSet++;
 382             }
 383           Valid = (L'\\' == *AfterControlSet);
 384           AfterControlSet++;
 385         }
 386       else
 387         {
 388           Valid = FALSE;
 389         }
 390     }
 391
 392   if (Valid)
 393     {
 394       ProfilePath = ExAllocatePoolWithTag(PagedPool,
 395                                           (wcslen(RegistryPath.Buffer) +
 396                                            wcslen(Insert) + 1) * sizeof(WCHAR),
 397                                           TAG_DC);
 398       if (NULL != ProfilePath)
 399         {
 400           wcsncpy(ProfilePath, RegistryPath.Buffer, AfterControlSet - RegistryPath.Buffer);
 401           wcscpy(ProfilePath + (AfterControlSet - RegistryPath.Buffer), Insert);
 402           wcscat(ProfilePath, AfterControlSet);
 403
 404           RtlZeroMemory(QueryTable, sizeof(QueryTable));
 405           QueryTable[0].QueryRoutine = DevModeCallback;
 406           QueryTable[0].Flags = 0;
 407           QueryTable[0].Name = NULL;
 408           QueryTable[0].EntryContext = NULL;
 409           QueryTable[0].DefaultType = REG_NONE;
 410           QueryTable[0].DefaultData = NULL;
 411           QueryTable[0].DefaultLength = 0;
 412
 413           Status = RtlQueryRegistryValues(RTL_REGISTRY_ABSOLUTE,
 414                                           ProfilePath,
 415                                           QueryTable,
 416                                           DevMode,
 417                                           NULL);
 418           if (! NT_SUCCESS(Status))
 419             {
 420               DPRINT("RtlQueryRegistryValues for %S failed with status 0x%08x\n",
 421                      ProfilePath, Status);
 422               Valid = FALSE;
 423             }
 424           else
 425             {
 426               DPRINT("dmBitsPerPel %d dmDisplayFrequency %d dmPelsWidth %d dmPelsHeight %d\n",
 427                      DevMode->dmBitsPerPel, DevMode->dmDisplayFrequency,
 428                      DevMode->dmPelsWidth, DevMode->dmPelsHeight);
 429               if (0 == DevMode->dmBitsPerPel || 0 == DevMode->dmDisplayFrequency
 430                   || 0 == DevMode->dmPelsWidth || 0 == DevMode->dmPelsHeight)
 431                 {
 432                   DPRINT("Not all required devmode members are set\n");
 433                   Valid = FALSE;
 434                 }
 435             }
 436
 437           ExFreePool(ProfilePath);
 438         }
 439       else
 440         {
 441           Valid = FALSE;
 442         }
 443     }
 444   else
 445     {
 446       DPRINT1("Unparsable registry path %S in DEVICEMAP\\VIDEO0", RegistryPath.Buffer);
 447     }
 448
 449   RtlFreeUnicodeString(&RegistryPath);
 450
 451   if (! Valid)
 452     {
 453       RtlZeroMemory(DevMode, sizeof(DEVMODEW));
 454     }
 455
 456   return Valid;
 457 }
 458
 459 BOOL FASTCALL
 460 IntCreatePrimarySurface()
 461 {
 462    PGD_ENABLEDRIVER GDEnableDriver;
 463    DRVENABLEDATA DED;
 464    SURFOBJ *SurfObj;
 465    PSURFGDI SurfGDI;
 466    UNICODE_STRING DriverFileNames;
 467    PWSTR CurrentName;
 468    BOOL GotDriver;
 469    BOOL DoDefault;
 470    ULONG DisplayNumber;
 471
 472    for (DisplayNumber = 0; ; DisplayNumber++)
 473    {
 474       DPRINT("Trying to load display driver no. %d\n", DisplayNumber);
 475
 476       RtlZeroMemory(&PrimarySurface, sizeof(PrimarySurface));
 477       ExInitializeFastMutex(&PrimarySurface.DriverLock);
 478
 479       PrimarySurface.VideoFileObject = DRIVER_FindMPDriver(DisplayNumber);
 480
 481       /* Open the miniport driver  */
 482       if (PrimarySurface.VideoFileObject == NULL)
 483       {
 484          DPRINT1("FindMPDriver failed\n");
 485          return FALSE;
 486       }
 487
 488       /* Retrieve DDI driver names from registry */
 489       RtlInitUnicodeString(&DriverFileNames, NULL);
 490       if (!FindDriverFileNames(&DriverFileNames, DisplayNumber))
 491       {
 492          DPRINT1("FindDriverFileNames failed\n");
 493          /* return FALSE; */
 494          continue;
 495       }
 496
 497       /*
 498        * DriverFileNames may be a list of drivers in REG_SZ_MULTI format,
 499        * scan all of them until a good one found.
 500        */
 501       CurrentName = DriverFileNames.Buffer;
 502       GotDriver = FALSE;
 503       while (!GotDriver &&
 504              CurrentName < DriverFileNames.Buffer + DriverFileNames.Length)
 505       {
 506          /* Get the DDI driver's entry point */
 507          GDEnableDriver = DRIVER_FindDDIDriver(CurrentName);
 508          if (NULL == GDEnableDriver)
 509          {
 510             DPRINT("FindDDIDriver failed for %S\n", CurrentName);
 511          }
 512          else
 513          {
 514             /*  Call DDI driver's EnableDriver function  */
 515             RtlZeroMemory(&DED, sizeof(DED));
 516
 517             if (! GDEnableDriver(DDI_DRIVER_VERSION_NT5_01, sizeof(DED), &DED))
 518             {
 519                DPRINT("DrvEnableDriver failed for %S\n", CurrentName);
 520             }
 521             else
 522             {
 523                GotDriver = TRUE;
 524             }
 525          }
 526
 527          if (! GotDriver)
 528          {
 529             /* Skip to the next name but never get past the Unicode string */
 530             while (L'\0' != *CurrentName &&
 531                    CurrentName < DriverFileNames.Buffer + DriverFileNames.Length)
 532             {
 533                CurrentName++;
 534             }
 535             if (CurrentName < DriverFileNames.Buffer + DriverFileNames.Length)
 536             {
 537                CurrentName++;
 538             }
 539          }
 540       }
 541
 542       RtlFreeUnicodeString(&DriverFileNames);
 543
 544       if (!GotDriver)
 545       {
 546          ObDereferenceObject(PrimarySurface.VideoFileObject);
 547          DPRINT1("No suitable DDI driver found\n");
 548          /* return FALSE; */
 549          continue;
 550       }
 551
 552       DPRINT("Display driver %S loaded\n", CurrentName);
 553
 554       DPRINT("Building DDI Functions\n");
 555
 556       /* Construct DDI driver function dispatch table */
 557       if (!DRIVER_BuildDDIFunctions(&DED, &PrimarySurface.DriverFunctions))
 558       {
 559          ObDereferenceObject(PrimarySurface.VideoFileObject);
 560          DPRINT1("BuildDDIFunctions failed\n");
 561          return FALSE;
 562       }
 563
 564       /* Allocate a phyical device handle from the driver */
 565       if (SetupDevMode(&PrimarySurface.DMW, DisplayNumber))
 566       {
 567          PrimarySurface.PDev = PrimarySurface.DriverFunctions.EnablePDev(
 568             &PrimarySurface.DMW,
 569             L"",
 570             HS_DDI_MAX,
 571             PrimarySurface.FillPatterns,
 572             sizeof(PrimarySurface.GDIInfo),
 573             (ULONG *) &PrimarySurface.GDIInfo,
 574             sizeof(PrimarySurface.DevInfo),
 575             &PrimarySurface.DevInfo,
 576             NULL,
 577             L"",
 578             (HANDLE) (PrimarySurface.VideoFileObject->DeviceObject));
 579          DoDefault = (NULL == PrimarySurface.PDev);
 580          if (DoDefault)
 581          {
 582             DPRINT1("DrvEnablePDev with registry parameters failed\n");
 583          }
 584       }
 585       else
 586       {
 587          DoDefault = TRUE;
 588       }
 589
 590       if (DoDefault)
 591       {
 592          RtlZeroMemory(&(PrimarySurface.DMW), sizeof(DEVMODEW));
 593          PrimarySurface.PDev = PrimarySurface.DriverFunctions.EnablePDev(
 594             &PrimarySurface.DMW,
 595             L"",
 596             HS_DDI_MAX,
 597             PrimarySurface.FillPatterns,
 598             sizeof(PrimarySurface.GDIInfo),
 599             (ULONG *) &PrimarySurface.GDIInfo,
 600             sizeof(PrimarySurface.DevInfo),
 601             &PrimarySurface.DevInfo,
 602             NULL,
 603             L"",
 604             (HANDLE) (PrimarySurface.VideoFileObject->DeviceObject));
 605
 606          if (NULL == PrimarySurface.PDev)
 607          {
 608             ObDereferenceObject(PrimarySurface.VideoFileObject);
 609             DPRINT1("DrvEnablePDEV with default parameters failed\n");
 610             DPRINT1("Perhaps DDI driver doesn't match miniport driver?\n");
 611             /* return FALSE; */
 612             continue;
 613          }
 614       }
 615
 616       if (0 == PrimarySurface.GDIInfo.ulLogPixelsX)
 617       {
 618          DPRINT("Adjusting GDIInfo.ulLogPixelsX\n");
 619          PrimarySurface.GDIInfo.ulLogPixelsX = 96;
 620       }
 621       if (0 == PrimarySurface.GDIInfo.ulLogPixelsY)
 622       {
 623          DPRINT("Adjusting GDIInfo.ulLogPixelsY\n");
 624          PrimarySurface.GDIInfo.ulLogPixelsY = 96;
 625       }
 626
 627       DPRINT("calling completePDev\n");
 628
 629       /* Complete initialization of the physical device */
 630       PrimarySurface.DriverFunctions.CompletePDev(
 631          PrimarySurface.PDev,
 632          (HDEV)&PrimarySurface);
 633
 634       DPRINT("calling DRIVER_ReferenceDriver\n");
 635
 636       DRIVER_ReferenceDriver(L"DISPLAY");
 637
 638       DPRINT("calling EnableSurface\n");
 639
 640       /* Enable the drawing surface */
 641       PrimarySurface.Handle =
 642          PrimarySurface.DriverFunctions.EnableSurface(PrimarySurface.PDev);
 643       if (NULL == PrimarySurface.Handle)
 644       {
 645 /*         PrimarySurface.DriverFunctions.AssertMode(PrimarySurface.PDev, FALSE);*/
 646          PrimarySurface.DriverFunctions.DisablePDev(PrimarySurface.PDev);
 647          ObDereferenceObject(PrimarySurface.VideoFileObject);
 648          DPRINT1("DrvEnableSurface failed\n");
 649          /* return FALSE; */
 650          continue;
 651       }
 652
 653       SurfObj = (SURFOBJ*)AccessUserObject((ULONG) PrimarySurface.Handle);
 654       SurfObj->dhpdev = PrimarySurface.PDev;
 655       SurfGDI = (PSURFGDI)AccessInternalObjectFromUserObject(SurfObj);
 656       IntShowDesktop(
 657          IntGetActiveDesktop(),
 658          SurfGDI->SurfObj.sizlBitmap.cx,
 659          SurfGDI->SurfObj.sizlBitmap.cy);
 660       break;
 661    }
 662
 663    return TRUE;
 664 }
 665
 666 VOID FASTCALL
 667 IntDestroyPrimarySurface()
 668   {
 669 #if 0
 670     SURFOBJ *SurfObj;
 671     PSURFGDI SurfGDI;
 672 #endif
 673
 674     DRIVER_UnreferenceDriver(L"DISPLAY");
 675
 676 #if 0
 677     DPRINT("Hiding mouse pointer\n" );
 678     SurfObj = (SURFOBJ*)AccessUserObject((ULONG) PrimarySurface.Handle);
 679     SurfGDI = (PSURFGDI)AccessInternalObjectFromUserObject(SurfObj);
 680     SurfGDI->SetPointerShape(SurfObj, NULL, NULL, NULL, 0, 0, 0, 0, 0, 0);
 681 #endif
 682     DPRINT("Reseting display\n" );
 683     PrimarySurface.DriverFunctions.AssertMode(PrimarySurface.PDev, FALSE);
 684     PrimarySurface.DriverFunctions.DisableSurface(PrimarySurface.PDev);
 685     PrimarySurface.DriverFunctions.DisablePDev(PrimarySurface.PDev);
 686
 687     DceEmptyCache();
 688
 689     ObDereferenceObject(PrimarySurface.VideoFileObject);
 690   }
 691
 692 HDC FASTCALL
 693 IntGdiCreateDC(PUNICODE_STRING Driver,
 694                PUNICODE_STRING Device,
 695                PUNICODE_STRING Output,
 696                CONST PDEVMODEW InitData)
 697 {
 698   HDC      hNewDC;
 699   PDC      NewDC;
 700   HDC      hDC = NULL;
 701   PSURFGDI SurfGDI;
 702   HRGN     hVisRgn;
 703   UNICODE_STRING StdDriver;
 704
 705   RtlInitUnicodeString(&StdDriver, L"DISPLAY");
 706
 707   if (NULL == Driver || 0 == RtlCompareUnicodeString(Driver, &StdDriver, TRUE))
 708     {
 709       if (! IntGraphicsCheck(TRUE))
 710         {
 711           DPRINT1("Unable to initialize graphics, returning NULL dc\n");
 712           return NULL;
 713         }
 714     }
 715
 716   /*  Check for existing DC object  */
 717   if ((hNewDC = DC_FindOpenDC(Driver)) != NULL)
 718   {
 719     hDC = hNewDC;
 720     return  NtGdiCreateCompatableDC(hDC);
 721   }
 722
 723   if (Driver != NULL && Driver->Buffer != NULL)
 724   {
 725     DPRINT("NAME: %S\n", Driver->Buffer); // FIXME: Should not crash if NULL
 726   }
 727
 728   /*  Allocate a DC object  */
 729   if ((hNewDC = DC_AllocDC(Driver)) == NULL)
 730   {
 731     return  NULL;
 732   }
 733
 734   NewDC = DC_LockDc( hNewDC );
 735   ASSERT( NewDC );
 736
 737   NewDC->DMW = PrimarySurface.DMW;
 738   NewDC->DevInfo = &PrimarySurface.DevInfo;
 739   NewDC->GDIInfo = &PrimarySurface.GDIInfo;
 740   memcpy(NewDC->FillPatternSurfaces, PrimarySurface.FillPatterns,
 741          sizeof(NewDC->FillPatternSurfaces));
 742   NewDC->PDev = PrimarySurface.PDev;
 743   NewDC->Surface = PrimarySurface.Handle;
 744   NewDC->GDIDevice = (HDEV)&PrimarySurface;
 745   NewDC->DriverFunctions = PrimarySurface.DriverFunctions;
 746
 747   NewDC->DMW.dmSize = sizeof(NewDC->DMW);
 748   NewDC->DMW.dmFields = 0x000fc000;
 749
 750   /* FIXME: get mode selection information from somewhere  */
 751
 752   NewDC->DMW.dmLogPixels = 96;
 753   SurfGDI = (PSURFGDI)AccessInternalObject((ULONG) PrimarySurface.Handle);
 754   NewDC->DMW.dmBitsPerPel = SurfGDI->BitsPerPixel;
 755   NewDC->DMW.dmPelsWidth = SurfGDI->SurfObj.sizlBitmap.cx;
 756   NewDC->DMW.dmPelsHeight = SurfGDI->SurfObj.sizlBitmap.cy;
 757   NewDC->DMW.dmDisplayFlags = 0;
 758   NewDC->DMW.dmDisplayFrequency = 0;
 759
 760   NewDC->w.bitsPerPixel = SurfGDI->BitsPerPixel; // FIXME: set this here??
 761
 762   NewDC->w.hPalette = NewDC->DevInfo->hpalDefault;
 763
 764   DPRINT("Bits per pel: %u\n", NewDC->w.bitsPerPixel);
 765
 766   DC_UnlockDc( hNewDC );
 767
 768   hVisRgn = NtGdiCreateRectRgn(0, 0, SurfGDI->SurfObj.sizlBitmap.cx,
 769                               SurfGDI->SurfObj.sizlBitmap.cy);
 770   NtGdiSelectVisRgn(hNewDC, hVisRgn);
 771   NtGdiDeleteObject(hVisRgn);
 772
 773   /*  Initialize the DC state  */
 774   DC_InitDC(hNewDC);
 775   NtGdiSetTextColor(hNewDC, RGB(0, 0, 0));
 776   NtGdiSetTextAlign(hNewDC, TA_TOP);
 777   NtGdiSetBkColor(hNewDC, RGB(255, 255, 255));
 778   NtGdiSetBkMode(hNewDC, OPAQUE);
 779
 780   return hNewDC;
 781 }
 782
 783 HDC STDCALL
 784 NtGdiCreateDC(PUNICODE_STRING Driver,
 785               PUNICODE_STRING Device,
 786               PUNICODE_STRING Output,
 787               CONST PDEVMODEW InitData)
 788 {
 789   UNICODE_STRING SafeDriver, SafeDevice;
 790   DEVMODEW SafeInitData;
 791   HDC Ret;
 792   NTSTATUS Status;
 793
 794   if(InitData)
 795   {
 796     Status = MmCopyFromCaller(&SafeInitData, InitData, sizeof(DEVMODEW));
 797     if(!NT_SUCCESS(Status))
 798     {
 799       SetLastNtError(Status);
 800       return NULL;
 801     }
 802     /* FIXME - InitData can have some more bytes! */
 803   }
 804
 805   if(Driver)
 806   {
 807     Status = IntSafeCopyUnicodeString(&SafeDriver, Driver);
 808     if(!NT_SUCCESS(Status))
 809     {
 810       SetLastNtError(Status);
 811       return NULL;
 812     }
 813   }
 814
 815   if(Device)
 816   {
 817     Status = IntSafeCopyUnicodeString(&SafeDevice, Device);
 818     if(!NT_SUCCESS(Status))
 819     {
 820       RtlFreeUnicodeString(&SafeDriver);
 821       SetLastNtError(Status);
 822       return NULL;
 823     }
 824   }
 825
 826   Ret = IntGdiCreateDC(&SafeDriver, &SafeDevice, NULL, &SafeInitData);
 827
 828   return Ret;
 829 }
 830
 831 HDC STDCALL
 832 NtGdiCreateIC(PUNICODE_STRING Driver,
 833               PUNICODE_STRING Device,
 834               PUNICODE_STRING Output,
 835               CONST PDEVMODEW DevMode)
 836 {
 837   /* FIXME: this should probably do something else...  */
 838   return  NtGdiCreateDC(Driver, Device, Output, DevMode);
 839 }
 840
 841 BOOL STDCALL
 842 NtGdiDeleteDC(HDC  DCHandle)
 843 {
 844   PDC  DCToDelete;
 845
 846   DCToDelete = DC_LockDc(DCHandle);
 847   if (DCToDelete == NULL)
 848     {
 849       return  FALSE;
 850     }
 851   DPRINT( "Deleting DC\n" );
 852   CHECKPOINT;
 853   /*  First delete all saved DCs  */
 854   while (DCToDelete->saveLevel)
 855   {
 856     PDC  savedDC;
 857     HDC  savedHDC;
 858
 859     savedHDC = DC_GetNextDC (DCToDelete);
 860     savedDC = DC_LockDc (savedHDC);
 861     if (savedDC == NULL)
 862     {
 863       break;
 864     }
 865     DC_SetNextDC (DCToDelete, DC_GetNextDC (savedDC));
 866     DCToDelete->saveLevel--;
 867         DC_UnlockDc( savedHDC );
 868     NtGdiDeleteDC (savedHDC);
 869   }
 870
 871   /*  Free GDI resources allocated to this DC  */
 872   if (!(DCToDelete->w.flags & DC_SAVED))
 873   {
 874     /*
 875     NtGdiSelectObject (DCHandle, STOCK_BLACK_PEN);
 876     NtGdiSelectObject (DCHandle, STOCK_WHITE_BRUSH);
 877     NtGdiSelectObject (DCHandle, STOCK_SYSTEM_FONT);
 878     DC_LockDC (DCHandle); NtGdiSelectObject does not recognize stock objects yet  */
 879     if (DCToDelete->w.flags & DC_MEMORY)
 880     {
 881       EngDeleteSurface (DCToDelete->Surface);
 882       NtGdiDeleteObject (DCToDelete->w.hFirstBitmap);
 883     }
 884   }
 885   if (DCToDelete->w.hClipRgn)
 886   {
 887     NtGdiDeleteObject (DCToDelete->w.hClipRgn);
 888   }
 889   if (DCToDelete->w.hVisRgn)
 890   {
 891     NtGdiDeleteObject (DCToDelete->w.hVisRgn);
 892   }
 893   if (NULL != DCToDelete->CombinedClip)
 894     {
 895       IntEngDeleteClipRegion(DCToDelete->CombinedClip);
 896     }
 897   if (DCToDelete->w.hGCClipRgn)
 898   {
 899     NtGdiDeleteObject (DCToDelete->w.hGCClipRgn);
 900   }
 901 #if 0 /* FIXME */
 902   PATH_DestroyGdiPath (&DCToDelete->w.path);
 903 #endif
 904   DC_UnlockDc( DCHandle );
 905   DC_FreeDC ( DCHandle );
 906
 907   return TRUE;
 908 }
 909
 910 INT STDCALL
 911 NtGdiDrawEscape(HDC  hDC,
 912                INT  nEscape,
 913                INT  cbInput,
 914                LPCSTR  lpszInData)
 915 {
 916   UNIMPLEMENTED;
 917 }
 918
 919 INT STDCALL
 920 NtGdiEnumObjects(HDC  hDC,
 921                 INT  ObjectType,
 922                 GOBJENUMPROC  ObjectFunc,
 923                 LPARAM  lParam)
 924 {
 925   UNIMPLEMENTED;
 926 }
 927
 928 DC_GET_VAL( COLORREF, NtGdiGetBkColor, w.backgroundColor )
 929 DC_GET_VAL( INT, NtGdiGetBkMode, w.backgroundMode )
 930 DC_GET_VAL_EX( GetBrushOrgEx, w.brushOrgX, w.brushOrgY, POINT, x, y )
 931 DC_GET_VAL( HRGN, NtGdiGetClipRgn, w.hClipRgn )
 932
 933 HGDIOBJ STDCALL
 934 NtGdiGetCurrentObject(HDC  hDC, UINT  ObjectType)
 935 {
 936   HGDIOBJ SelObject;
 937   DC *dc;
 938
 939   if(!(dc = DC_LockDc(hDC)))
 940   {
 941     SetLastWin32Error(ERROR_INVALID_HANDLE);
 942     return NULL;
 943   }
 944
 945   switch(ObjectType)
 946   {
 947     case OBJ_PEN:
 948       SelObject = dc->w.hPen;
 949       break;
 950     case OBJ_BRUSH:
 951       SelObject = dc->w.hBrush;
 952       break;
 953     case OBJ_PAL:
 954       DPRINT1("FIXME: NtGdiGetCurrentObject() ObjectType OBJ_PAL not supported yet!\n");
 955       break;
 956     case OBJ_FONT:
 957       SelObject = dc->w.hFont;
 958       break;
 959     case OBJ_BITMAP:
 960       SelObject = dc->w.hBitmap;
 961       break;
 962     case OBJ_COLORSPACE:
 963       DPRINT1("FIXME: NtGdiGetCurrentObject() ObjectType OBJ_COLORSPACE not supported yet!\n");
 964       break;
 965     default:
 966       SelObject = NULL;
 967       SetLastWin32Error(ERROR_INVALID_PARAMETER);
 968       break;
 969   }
 970
 971   DC_UnlockDc(hDC);
 972   return SelObject;
 973 }
 974
 975 DC_GET_VAL_EX ( GetCurrentPositionEx, w.CursPosX, w.CursPosY, POINT, x, y )
 976
 977 BOOL FASTCALL
 978 IntGdiGetDCOrgEx(DC *dc, LPPOINT  Point)
 979 {
 980   Point->x = dc->w.DCOrgX;
 981   Point->y = dc->w.DCOrgY;
 982
 983   return  TRUE;
 984 }
 985
 986 BOOL STDCALL
 987 NtGdiGetDCOrgEx(HDC  hDC, LPPOINT  Point)
 988 {
 989   BOOL Ret;
 990   DC *dc;
 991   POINT SafePoint;
 992   NTSTATUS Status;
 993
 994   if(!Point)
 995   {
 996     SetLastWin32Error(ERROR_INVALID_PARAMETER);
 997     return FALSE;
 998   }
 999
1000   dc = DC_LockDc(hDC);
1001   if(!dc)
1002   {
1003     SetLastWin32Error(ERROR_INVALID_HANDLE);
1004     return FALSE;
1005   }
1006
1007   Ret = IntGdiGetDCOrgEx(dc, &SafePoint);
1008
1009   Status = MmCopyToCaller(Point, &SafePoint, sizeof(POINT));
1010   if(!NT_SUCCESS(Status))
1011   {
1012     SetLastNtError(Status);
1013     DC_UnlockDc(hDC);
1014     return FALSE;
1015   }
1016
1017   DC_UnlockDc(hDC);
1018   return Ret;
1019 }
1020
1021 COLORREF STDCALL
1022 NtGdiSetBkColor(HDC hDC, COLORREF color)
1023 {
1024   COLORREF oldColor;
1025   PDC dc;
1026   HBRUSH hBrush;
1027
1028   if (!(dc = DC_LockDc(hDC)))
1029   {
1030     SetLastWin32Error(ERROR_INVALID_HANDLE);
1031     return CLR_INVALID;
1032   }
1033
1034   oldColor = dc->w.backgroundColor;
1035   dc->w.backgroundColor = color;
1036   hBrush = dc->w.hBrush;
1037   DC_UnlockDc ( hDC );
1038   NtGdiSelectObject(hDC, hBrush);
1039   return oldColor;
1040 }
1041
1042 HDC STDCALL
1043 NtGdiGetDCState(HDC  hDC)
1044 {
1045   PDC  newdc, dc;
1046   HDC hnewdc;
1047
1048   dc = DC_LockDc(hDC);
1049   if (dc == NULL)
1050   {
1051     SetLastWin32Error(ERROR_INVALID_HANDLE);
1052     return 0;
1053   }
1054
1055   hnewdc = DC_AllocDC(NULL);
1056   if (hnewdc == NULL)
1057   {
1058     DC_UnlockDc( hDC );
1059     return 0;
1060   }
1061   newdc = DC_LockDc( hnewdc );
1062   ASSERT( newdc );
1063
1064   newdc->w.flags            = dc->w.flags | DC_SAVED;
1065   newdc->w.hPen             = dc->w.hPen;
1066   newdc->w.hBrush           = dc->w.hBrush;
1067   newdc->w.hFont            = dc->w.hFont;
1068   newdc->w.hBitmap          = dc->w.hBitmap;
1069   newdc->w.hFirstBitmap     = dc->w.hFirstBitmap;
1070 #if 0
1071   newdc->w.hDevice          = dc->w.hDevice;
1072 #endif
1073   newdc->w.hPalette         = dc->w.hPalette;
1074   newdc->w.totalExtent      = dc->w.totalExtent;
1075   newdc->w.bitsPerPixel     = dc->w.bitsPerPixel;
1076   newdc->w.ROPmode          = dc->w.ROPmode;
1077   newdc->w.polyFillMode     = dc->w.polyFillMode;
1078   newdc->w.stretchBltMode   = dc->w.stretchBltMode;
1079   newdc->w.relAbsMode       = dc->w.relAbsMode;
1080   newdc->w.backgroundMode   = dc->w.backgroundMode;
1081   newdc->w.backgroundColor  = dc->w.backgroundColor;
1082   newdc->w.textColor        = dc->w.textColor;
1083   newdc->w.brushOrgX        = dc->w.brushOrgX;
1084   newdc->w.brushOrgY        = dc->w.brushOrgY;
1085   newdc->w.textAlign        = dc->w.textAlign;
1086   newdc->w.charExtra        = dc->w.charExtra;
1087   newdc->w.breakTotalExtra  = dc->w.breakTotalExtra;
1088   newdc->w.breakCount       = dc->w.breakCount;
1089   newdc->w.breakExtra       = dc->w.breakExtra;
1090   newdc->w.breakRem         = dc->w.breakRem;
1091   newdc->w.MapMode          = dc->w.MapMode;
1092   newdc->w.GraphicsMode     = dc->w.GraphicsMode;
1093 #if 0
1094   /* Apparently, the DC origin is not changed by [GS]etDCState */
1095   newdc->w.DCOrgX           = dc->w.DCOrgX;
1096   newdc->w.DCOrgY           = dc->w.DCOrgY;
1097 #endif
1098   newdc->w.CursPosX         = dc->w.CursPosX;
1099   newdc->w.CursPosY         = dc->w.CursPosY;
1100   newdc->w.ArcDirection     = dc->w.ArcDirection;
1101   newdc->w.xformWorld2Wnd   = dc->w.xformWorld2Wnd;
1102   newdc->w.xformWorld2Vport = dc->w.xformWorld2Vport;
1103   newdc->w.xformVport2World = dc->w.xformVport2World;
1104   newdc->w.vport2WorldValid = dc->w.vport2WorldValid;
1105   newdc->wndOrgX            = dc->wndOrgX;
1106   newdc->wndOrgY            = dc->wndOrgY;
1107   newdc->wndExtX            = dc->wndExtX;
1108   newdc->wndExtY            = dc->wndExtY;
1109   newdc->vportOrgX          = dc->vportOrgX;
1110   newdc->vportOrgY          = dc->vportOrgY;
1111   newdc->vportExtX          = dc->vportExtX;
1112   newdc->vportExtY          = dc->vportExtY;
1113
1114   newdc->hSelf = hnewdc;
1115   newdc->saveLevel = 0;
1116
1117 #if 0
1118   PATH_InitGdiPath( &newdc->w.path );
1119 #endif
1120
1121   /* Get/SetDCState() don't change hVisRgn field ("Undoc. Windows" p.559). */
1122
1123   newdc->w.hGCClipRgn = newdc->w.hVisRgn = 0;
1124   if (dc->w.hClipRgn)
1125   {
1126     newdc->w.hClipRgn = NtGdiCreateRectRgn( 0, 0, 0, 0 );
1127     NtGdiCombineRgn( newdc->w.hClipRgn, dc->w.hClipRgn, 0, RGN_COPY );
1128   }
1129   DC_UnlockDc( hnewdc );
1130   DC_UnlockDc( hDC );
1131   return  hnewdc;
1132 }
1133
1134
1135 VOID
1136 STDCALL
1137 NtGdiSetDCState ( HDC hDC, HDC hDCSave )
1138 {
1139   PDC  dc, dcs;
1140
1141   dc = DC_LockDc ( hDC );
1142   if ( dc )
1143   {
1144     dcs = DC_LockDc ( hDCSave );
1145     if ( dcs )
1146     {
1147       if ( dcs->w.flags & DC_SAVED )
1148       {
1149         dc->w.flags            = dcs->w.flags & ~DC_SAVED;
1150
1151         dc->w.hFirstBitmap     = dcs->w.hFirstBitmap;
1152
1153 #if 0
1154         dc->w.hDevice          = dcs->w.hDevice;
1155 #endif
1156
1157         dc->w.totalExtent      = dcs->w.totalExtent;
1158         dc->w.ROPmode          = dcs->w.ROPmode;
1159         dc->w.polyFillMode     = dcs->w.polyFillMode;
1160         dc->w.stretchBltMode   = dcs->w.stretchBltMode;
1161         dc->w.relAbsMode       = dcs->w.relAbsMode;
1162         dc->w.backgroundMode   = dcs->w.backgroundMode;
1163         dc->w.backgroundColor  = dcs->w.backgroundColor;
1164         dc->w.textColor        = dcs->w.textColor;
1165         dc->w.brushOrgX        = dcs->w.brushOrgX;
1166         dc->w.brushOrgY        = dcs->w.brushOrgY;
1167         dc->w.textAlign        = dcs->w.textAlign;
1168         dc->w.charExtra        = dcs->w.charExtra;
1169         dc->w.breakTotalExtra  = dcs->w.breakTotalExtra;
1170         dc->w.breakCount       = dcs->w.breakCount;
1171         dc->w.breakExtra       = dcs->w.breakExtra;
1172         dc->w.breakRem         = dcs->w.breakRem;
1173         dc->w.MapMode          = dcs->w.MapMode;
1174         dc->w.GraphicsMode     = dcs->w.GraphicsMode;
1175 #if 0
1176         /* Apparently, the DC origin is not changed by [GS]etDCState */
1177         dc->w.DCOrgX           = dcs->w.DCOrgX;
1178         dc->w.DCOrgY           = dcs->w.DCOrgY;
1179 #endif
1180         dc->w.CursPosX         = dcs->w.CursPosX;
1181         dc->w.CursPosY         = dcs->w.CursPosY;
1182         dc->w.ArcDirection     = dcs->w.ArcDirection;
1183
1184         dc->w.xformWorld2Wnd   = dcs->w.xformWorld2Wnd;
1185         dc->w.xformWorld2Vport = dcs->w.xformWorld2Vport;
1186         dc->w.xformVport2World = dcs->w.xformVport2World;
1187         dc->w.vport2WorldValid = dcs->w.vport2WorldValid;
1188
1189         dc->wndOrgX            = dcs->wndOrgX;
1190         dc->wndOrgY            = dcs->wndOrgY;
1191         dc->wndExtX            = dcs->wndExtX;
1192         dc->wndExtY            = dcs->wndExtY;
1193         dc->vportOrgX          = dcs->vportOrgX;
1194         dc->vportOrgY          = dcs->vportOrgY;
1195         dc->vportExtX          = dcs->vportExtX;
1196         dc->vportExtY          = dcs->vportExtY;
1197
1198         if (!(dc->w.flags & DC_MEMORY))
1199         {
1200           dc->w.bitsPerPixel = dcs->w.bitsPerPixel;
1201         }
1202
1203 #if 0
1204         if (dcs->w.hClipRgn)
1205         {
1206           if (!dc->w.hClipRgn)
1207           {
1208             dc->w.hClipRgn = NtGdiCreateRectRgn( 0, 0, 0, 0 );
1209           }
1210           NtGdiCombineRgn( dc->w.hClipRgn, dcs->w.hClipRgn, 0, RGN_COPY );
1211         }
1212         else
1213         {
1214           if (dc->w.hClipRgn)
1215           {
1216             NtGdiDeleteObject( dc->w.hClipRgn );
1217           }
1218
1219           dc->w.hClipRgn = 0;
1220         }
1221         CLIPPING_UpdateGCRegion( dc );
1222         DC_UnlockDc ( hDC );
1223 #else
1224         DC_UnlockDc ( hDC );
1225         NtGdiSelectClipRgn(hDC, dcs->w.hClipRgn);
1226 #endif
1227
1228         NtGdiSelectObject( hDC, dcs->w.hBitmap );
1229         NtGdiSelectObject( hDC, dcs->w.hBrush );
1230         NtGdiSelectObject( hDC, dcs->w.hFont );
1231         NtGdiSelectObject( hDC, dcs->w.hPen );
1232         NtGdiSetBkColor( hDC, dcs->w.backgroundColor);
1233         NtGdiSetTextColor( hDC, dcs->w.textColor);
1234
1235         NtGdiSelectPalette( hDC, dcs->w.hPalette, FALSE );
1236
1237 #if 0
1238         GDISelectPalette16( hDC, dcs->w.hPalette, FALSE );
1239 #endif
1240       } else {
1241         DC_UnlockDc(hDC);
1242       }
1243       DC_UnlockDc ( hDCSave );
1244     } else {
1245       DC_UnlockDc ( hDC );
1246       SetLastWin32Error(ERROR_INVALID_HANDLE);
1247     }
1248   }
1249   else
1250     SetLastWin32Error(ERROR_INVALID_HANDLE);
1251 }
1252
1253 INT STDCALL
1254 NtGdiGetDeviceCaps(HDC  hDC,
1255                   INT  Index)
1256 {
1257   PDC  dc;
1258   INT  ret;
1259   POINT  pt;
1260
1261   dc = DC_LockDc(hDC);
1262   if (dc == NULL)
1263   {
1264     SetLastWin32Error(ERROR_INVALID_HANDLE);
1265     return 0;
1266   }
1267
1268   /* Retrieve capability */
1269   switch (Index)
1270   {
1271     case DRIVERVERSION:
1272       ret = dc->GDIInfo->ulVersion;
1273       break;
1274
1275     case TECHNOLOGY:
1276       ret = dc->GDIInfo->ulTechnology;
1277       break;
1278
1279     case HORZSIZE:
1280       ret = dc->GDIInfo->ulHorzSize;
1281       break;
1282
1283     case VERTSIZE:
1284       ret = dc->GDIInfo->ulVertSize;
1285       break;
1286
1287     case HORZRES:
1288       ret = dc->GDIInfo->ulHorzRes;
1289       break;
1290
1291     case VERTRES:
1292       ret = dc->GDIInfo->ulVertRes;
1293       break;
1294
1295     case LOGPIXELSX:
1296       ret = dc->GDIInfo->ulLogPixelsX;
1297       break;
1298
1299     case LOGPIXELSY:
1300       ret = dc->GDIInfo->ulLogPixelsY;
1301       break;
1302
1303     case BITSPIXEL:
1304       ret = dc->GDIInfo->cBitsPixel;
1305       break;
1306
1307     case PLANES:
1308       ret = dc->GDIInfo->cPlanes;
1309       break;
1310
1311     case NUMBRUSHES:
1312       UNIMPLEMENTED; /* FIXME */
1313       break;
1314
1315     case NUMPENS:
1316       UNIMPLEMENTED; /* FIXME */
1317       break;
1318
1319     case NUMFONTS:
1320       UNIMPLEMENTED; /* FIXME */
1321       break;
1322
1323     case NUMCOLORS:
1324       ret = dc->GDIInfo->ulNumColors;
1325       break;
1326
1327     case ASPECTX:
1328       ret = dc->GDIInfo->ulAspectX;
1329       break;
1330
1331     case ASPECTY:
1332       ret = dc->GDIInfo->ulAspectY;
1333       break;
1334
1335     case ASPECTXY:
1336       ret = dc->GDIInfo->ulAspectXY;
1337       break;
1338
1339     case PDEVICESIZE:
1340       UNIMPLEMENTED; /* FIXME */
1341       break;
1342
1343     case CLIPCAPS:
1344       UNIMPLEMENTED; /* FIXME */
1345       break;
1346
1347     case SIZEPALETTE:
1348       ret = dc->GDIInfo->ulNumPalReg; /* FIXME not sure */
1349       break;
1350
1351     case NUMRESERVED:
1352       ret = 0;
1353       break;
1354
1355     case COLORRES:
1356       UNIMPLEMENTED; /* FIXME */
1357       break;
1358
1359     case PHYSICALWIDTH:
1360       if(NtGdiEscape(hDC, GETPHYSPAGESIZE, 0, NULL, (LPVOID)&pt) > 0)
1361       {
1362         ret = pt.x;
1363       }
1364       else
1365       {
1366         ret = 0;
1367       }
1368       break;
1369
1370     case PHYSICALHEIGHT:
1371       if(NtGdiEscape(hDC, GETPHYSPAGESIZE, 0, NULL, (LPVOID)&pt) > 0)
1372       {
1373         ret = pt.y;
1374       }
1375       else
1376       {
1377         ret = 0;
1378       }
1379       break;
1380
1381     case PHYSICALOFFSETX:
1382       if(NtGdiEscape(hDC, GETPRINTINGOFFSET, 0, NULL, (LPVOID)&pt) > 0)
1383       {
1384         ret = pt.x;
1385       }
1386       else
1387       {
1388         ret = 0;
1389       }
1390       break;
1391
1392     case PHYSICALOFFSETY:
1393       if(NtGdiEscape(hDC, GETPRINTINGOFFSET, 0, NULL, (LPVOID)&pt) > 0)
1394       {
1395         ret = pt.y;
1396       }
1397       else
1398       {
1399         ret = 0;
1400       }
1401       break;
1402
1403     case VREFRESH:
1404       UNIMPLEMENTED; /* FIXME */
1405       break;
1406
1407     case SCALINGFACTORX:
1408       if(NtGdiEscape(hDC, GETSCALINGFACTOR, 0, NULL, (LPVOID)&pt) > 0)
1409       {
1410         ret = pt.x;
1411       }
1412       else
1413       {
1414         ret = 0;
1415       }
1416       break;
1417
1418     case SCALINGFACTORY:
1419       if(NtGdiEscape(hDC, GETSCALINGFACTOR, 0, NULL, (LPVOID)&pt) > 0)
1420       {
1421         ret = pt.y;
1422       }
1423       else
1424       {
1425         ret = 0;
1426       }
1427       break;
1428
1429     case RASTERCAPS:
1430       ret = dc->GDIInfo->flRaster;
1431       break;
1432
1433     case CURVECAPS:
1434       UNIMPLEMENTED; /* FIXME */
1435       break;
1436
1437     case LINECAPS:
1438       UNIMPLEMENTED; /* FIXME */
1439       break;
1440
1441     case POLYGONALCAPS:
1442       UNIMPLEMENTED; /* FIXME */
1443       break;
1444
1445     case TEXTCAPS:
1446       ret = dc->GDIInfo->flTextCaps;
1447       break;
1448
1449     default:
1450       ret = 0;
1451       break;
1452   }
1453
1454   DPRINT("(%04x,%d): returning %d\n", hDC, Index, ret);
1455
1456   DC_UnlockDc( hDC );
1457   return ret;
1458 }
1459
1460 DC_GET_VAL( INT, NtGdiGetMapMode, w.MapMode )
1461 DC_GET_VAL( INT, NtGdiGetPolyFillMode, w.polyFillMode )
1462
1463 INT FASTCALL
1464 IntGdiGetObject(HANDLE Handle, INT Count, LPVOID Buffer)
1465 {
1466   PGDIOBJHDR GdiObject;
1467   INT Result = 0;
1468   DWORD ObjectType;
1469
1470   GdiObject = GDIOBJ_LockObj(Handle, GDI_OBJECT_TYPE_DONTCARE);
1471   if (NULL == GdiObject)
1472     {
1473       SetLastWin32Error(ERROR_INVALID_HANDLE);
1474       return 0;
1475     }
1476
1477   ObjectType = GDIOBJ_GetObjectType(Handle);
1478   switch (ObjectType)
1479     {
1480 #if 0
1481       case GDI_OBJECT_TYPE_PEN:
1482         Result = PEN_GetObject((PENOBJ *) GdiObject, Count, Buffer);
1483         break;
1484       case GDI_OBJECT_TYPE_BRUSH:
1485         Result = BRUSH_GetObject((BRUSHOBJ *) GdiObject, Count, Buffer);
1486         break;
1487 #endif
1488       case GDI_OBJECT_TYPE_BITMAP:
1489         Result = BITMAP_GetObject((BITMAPOBJ *) GdiObject, Count, Buffer);
1490         break;
1491       case GDI_OBJECT_TYPE_FONT:
1492         Result = FontGetObject((PTEXTOBJ) GdiObject, Count, Buffer);
1493 #if 0
1494         // Fix the LOGFONT structure for the stock fonts
1495         if (FIRST_STOCK_HANDLE <= Handle && Handle <= LAST_STOCK_HANDLE)
1496           {
1497             FixStockFontSizeW(Handle, Count, Buffer);
1498           }
1499 #endif
1500         break;
1501 #if 0
1502       case GDI_OBJECT_TYPE_PALETTE:
1503         Result = PALETTE_GetObject((PALETTEOBJ *) GdiObject, Count, Buffer);
1504         break;
1505 #endif
1506       default:
1507         DPRINT1("GDI object type 0x%08x not implemented\n", ObjectType);
1508         break;
1509     }
1510
1511   GDIOBJ_UnlockObj(Handle, GDI_OBJECT_TYPE_DONTCARE);
1512
1513   return Result;
1514 }
1515
1516 INT STDCALL
1517 NtGdiGetObject(HANDLE handle, INT count, LPVOID buffer)
1518 {
1519   INT Ret;
1520   LPVOID SafeBuf;
1521   NTSTATUS Status;
1522
1523   if (count <= 0)
1524   {
1525     return 0;
1526   }
1527
1528   SafeBuf = ExAllocatePoolWithTag(PagedPool, count, TAG_GDIOBJ);
1529   if(!SafeBuf)
1530   {
1531     SetLastWin32Error(ERROR_NOT_ENOUGH_MEMORY);
1532     return 0;
1533   }
1534
1535   Ret = IntGdiGetObject(handle, count, SafeBuf);
1536
1537   Status = MmCopyToCaller(buffer, SafeBuf, count);
1538   ExFreePool(SafeBuf);
1539   if(!NT_SUCCESS(Status))
1540   {
1541     SetLastNtError(Status);
1542     return 0;
1543   }
1544
1545   return Ret;
1546 }
1547
1548 DWORD STDCALL
1549 NtGdiGetObjectType(HANDLE handle)
1550 {
1551   GDIOBJHDR * ptr;
1552   INT result = 0;
1553   DWORD objectType;
1554
1555   ptr = GDIOBJ_LockObj(handle, GDI_OBJECT_TYPE_DONTCARE);
1556   if (ptr == 0)
1557   {
1558     SetLastWin32Error(ERROR_INVALID_HANDLE);
1559     return 0;
1560   }
1561
1562   objectType = GDIOBJ_GetObjectType(handle);
1563   switch(objectType)
1564   {
1565     case GDI_OBJECT_TYPE_PEN:
1566       result = OBJ_PEN;
1567       break;
1568     case GDI_OBJECT_TYPE_BRUSH:
1569       result = OBJ_BRUSH;
1570       break;
1571     case GDI_OBJECT_TYPE_BITMAP:
1572       result = OBJ_BITMAP;
1573       break;
1574     case GDI_OBJECT_TYPE_FONT:
1575       result = OBJ_FONT;
1576       break;
1577     case GDI_OBJECT_TYPE_PALETTE:
1578       result = OBJ_PAL;
1579       break;
1580     case GDI_OBJECT_TYPE_REGION:
1581       result = OBJ_REGION;
1582       break;
1583     case GDI_OBJECT_TYPE_DC:
1584       result = OBJ_DC;
1585       break;
1586     case GDI_OBJECT_TYPE_METADC:
1587       result = OBJ_METADC;
1588       break;
1589     case GDI_OBJECT_TYPE_METAFILE:
1590       result = OBJ_METAFILE;
1591       break;
1592     case GDI_OBJECT_TYPE_ENHMETAFILE:
1593       result = OBJ_ENHMETAFILE;
1594       break;
1595     case GDI_OBJECT_TYPE_ENHMETADC:
1596       result = OBJ_ENHMETADC;
1597       break;
1598     case GDI_OBJECT_TYPE_EXTPEN:
1599       result = OBJ_EXTPEN;
1600       break;
1601     case GDI_OBJECT_TYPE_MEMDC:
1602       result = OBJ_MEMDC;
1603       break;
1604     default:
1605       DPRINT1("Magic 0x%08x not implemented\n", objectType);
1606       break;
1607   }
1608   GDIOBJ_UnlockObj(handle, GDI_OBJECT_TYPE_DONTCARE);
1609   return result;
1610 }
1611
1612 DC_GET_VAL( INT, NtGdiGetRelAbs, w.relAbsMode )
1613 DC_GET_VAL( INT, NtGdiGetROP2, w.ROPmode )
1614 DC_GET_VAL( INT, NtGdiGetStretchBltMode, w.stretchBltMode )
1615 DC_GET_VAL( UINT, NtGdiGetTextAlign, w.textAlign )
1616 DC_GET_VAL( COLORREF, NtGdiGetTextColor, w.textColor )
1617 DC_GET_VAL_EX( GetViewportExtEx, vportExtX, vportExtY, SIZE, cx, cy )
1618 DC_GET_VAL_EX( GetViewportOrgEx, vportOrgX, vportOrgY, POINT, x, y )
1619 DC_GET_VAL_EX( GetWindowExtEx, wndExtX, wndExtY, SIZE, cx, cy )
1620 DC_GET_VAL_EX( GetWindowOrgEx, wndOrgX, wndOrgY, POINT, x, y )
1621
1622 HDC STDCALL
1623 NtGdiResetDC(HDC  hDC, CONST DEVMODEW *InitData)
1624 {
1625   UNIMPLEMENTED;
1626 }
1627
1628 BOOL STDCALL
1629 NtGdiRestoreDC(HDC  hDC, INT  SaveLevel)
1630 {
1631   PDC dc, dcs;
1632   BOOL success;
1633
1634   DPRINT("NtGdiRestoreDC(%lx, %d)\n", hDC, SaveLevel);
1635
1636   dc = DC_LockDc(hDC);
1637   if (!dc)
1638   {
1639     SetLastWin32Error(ERROR_INVALID_HANDLE);
1640     return FALSE;
1641   }
1642
1643   if (SaveLevel == -1)
1644     SaveLevel = dc->saveLevel;
1645
1646   if ((SaveLevel < 1) || (SaveLevel > dc->saveLevel))
1647     return FALSE;
1648
1649   success = TRUE;
1650   while (dc->saveLevel >= SaveLevel)
1651   {
1652     HDC hdcs = DC_GetNextDC (dc);
1653
1654     dcs = DC_LockDc (hdcs);
1655     if (dcs == NULL)
1656     {
1657       return FALSE;
1658     }
1659     DC_SetNextDC (dcs, DC_GetNextDC (dcs));
1660     if (--dc->saveLevel < SaveLevel)
1661       {
1662         DC_UnlockDc( hDC );
1663         DC_UnlockDc( hdcs );
1664         NtGdiSetDCState(hDC, hdcs);
1665 #if 0
1666         if (!PATH_AssignGdiPath( &dc->w.path, &dcs->w.path ))
1667         {
1668           /* FIXME: This might not be quite right, since we're
1669            * returning FALSE but still destroying the saved DC state */
1670           success = FALSE;
1671         }
1672 #endif
1673         dc = DC_LockDc(hDC);
1674         if(!dc)
1675         {
1676           return FALSE;
1677         }
1678       }
1679     else
1680       {
1681       DC_UnlockDc( hdcs );
1682       }
1683     NtGdiDeleteDC (hdcs);
1684   }
1685   DC_UnlockDc( hDC );
1686   return  success;
1687 }
1688
1689 INT STDCALL
1690 NtGdiSaveDC(HDC  hDC)
1691 {
1692   HDC  hdcs;
1693   PDC  dc, dcs;
1694   INT  ret;
1695
1696   DPRINT("NtGdiSaveDC(%lx)\n", hDC);
1697
1698   if (!(hdcs = NtGdiGetDCState(hDC)))
1699   {
1700     return 0;
1701   }
1702
1703   dcs = DC_LockDc (hdcs);
1704   if (dcs == NULL)
1705   {
1706     SetLastWin32Error(ERROR_INVALID_HANDLE);
1707     return 0;
1708   }
1709   dc = DC_LockDc (hDC);
1710   if (dc == NULL)
1711   {
1712     DC_UnlockDc(dc);
1713     SetLastWin32Error(ERROR_INVALID_HANDLE);
1714     return 0;
1715   }
1716
1717 #if 0
1718     /* Copy path. The reason why path saving / restoring is in SaveDC/
1719      * RestoreDC and not in GetDCState/SetDCState is that the ...DCState
1720      * functions are only in Win16 (which doesn't have paths) and that
1721      * SetDCState doesn't allow us to signal an error (which can happen
1722      * when copying paths).
1723      */
1724   if (!PATH_AssignGdiPath (&dcs->w.path, &dc->w.path))
1725   {
1726     NtGdiDeleteDC (hdcs);
1727     return 0;
1728   }
1729 #endif
1730
1731   DC_SetNextDC (dcs, DC_GetNextDC (dc));
1732   DC_SetNextDC (dc, hdcs);
1733   ret = ++dc->saveLevel;
1734   DC_UnlockDc( hdcs );
1735   DC_UnlockDc( hDC );
1736
1737   return  ret;
1738 }
1739
1740 HGDIOBJ
1741 STDCALL
1742 NtGdiSelectObject(HDC  hDC, HGDIOBJ  hGDIObj)
1743 {
1744   HGDIOBJ objOrg = NULL; // default to failure
1745   BITMAPOBJ *pb;
1746   PDC dc;
1747   PGDIBRUSHOBJ pen;
1748   PGDIBRUSHOBJ brush;
1749   XLATEOBJ *XlateObj;
1750   PPALGDI PalGDI;
1751   DWORD objectType;
1752   COLORREF MonoColorMap[2];
1753   ULONG NumColors;
1754   HRGN hVisRgn;
1755   USHORT Mode;
1756
1757   if(!hDC || !hGDIObj) return NULL;
1758
1759   dc = DC_LockDc(hDC);
1760   if (NULL == dc)
1761     {
1762       SetLastWin32Error(ERROR_INVALID_HANDLE);
1763       return NULL;
1764     }
1765
1766   objectType = GDIOBJ_GetObjectType(hGDIObj);
1767
1768   switch (objectType)
1769   {
1770     case GDI_OBJECT_TYPE_PEN:
1771       objOrg = NULL;
1772       /* Convert the color of the pen to the format of the DC */
1773       PalGDI = PALETTE_LockPalette(dc->w.hPalette);
1774       if (NULL != PalGDI)
1775         {
1776           Mode = PalGDI->Mode;
1777           PALETTE_UnlockPalette(dc->w.hPalette);
1778           XlateObj = (XLATEOBJ*)IntEngCreateXlate(Mode, PAL_RGB, dc->w.hPalette, NULL);
1779           if (NULL != XlateObj)
1780             {
1781               pen = PENOBJ_LockPen((HPEN) hGDIObj);
1782               if (NULL != pen)
1783                 {
1784                   if (pen->flAttrs & GDIBRUSH_IS_SOLID)
1785                     {
1786                       pen->BrushObject.iSolidColor =
1787                         XLATEOBJ_iXlate(XlateObj, pen->BrushAttr.lbColor);
1788                     }
1789                   else
1790                     {
1791                       pen->BrushObject.iSolidColor = 0xFFFFFFFF;
1792                     }
1793                   pen->crBack = XLATEOBJ_iXlate(XlateObj, dc->w.backgroundColor);
1794                   pen->crFore = XLATEOBJ_iXlate(XlateObj, dc->w.textColor);
1795                   PENOBJ_UnlockPen((HPEN) hGDIObj);
1796                   objOrg = (HGDIOBJ)dc->w.hPen;
1797                   dc->w.hPen = hGDIObj;
1798                 }
1799               else
1800                 {
1801                   SetLastWin32Error(ERROR_INVALID_HANDLE);
1802                 }
1803               EngDeleteXlate(XlateObj);
1804             }
1805           else
1806             {
1807               SetLastWin32Error(ERROR_NO_SYSTEM_RESOURCES);
1808             }
1809         }
1810       else
1811         {
1812           SetLastWin32Error(ERROR_INVALID_HANDLE);
1813         }
1814       break;
1815
1816     case GDI_OBJECT_TYPE_BRUSH:
1817       objOrg = NULL;
1818       /* Convert the color of the brush to the format of the DC */
1819       PalGDI = PALETTE_LockPalette(dc->w.hPalette);
1820       if (NULL != PalGDI)
1821         {
1822           Mode = PalGDI->Mode;
1823           PALETTE_UnlockPalette(dc->w.hPalette);
1824           XlateObj = (XLATEOBJ*)IntEngCreateXlate(Mode, PAL_RGB, dc->w.hPalette, NULL);
1825           if (NULL != XlateObj)
1826             {
1827               brush = BRUSHOBJ_LockBrush((HBRUSH) hGDIObj);
1828               if (NULL != brush)
1829                 {
1830                   if (brush->flAttrs & GDIBRUSH_IS_SOLID)
1831                     {
1832                       brush->BrushObject.iSolidColor =
1833                         XLATEOBJ_iXlate(XlateObj, brush->BrushAttr.lbColor);
1834                     }
1835                   else
1836                     {
1837                       brush->BrushObject.iSolidColor = 0xFFFFFFFF;
1838                     }
1839                   brush->crBack = XLATEOBJ_iXlate(XlateObj, dc->w.backgroundColor);
1840                   brush->crFore = XLATEOBJ_iXlate(XlateObj, ((brush->flAttrs & GDIBRUSH_IS_HATCH) ?
1841                                                              brush->BrushAttr.lbColor : dc->w.textColor));
1842                   /* according to the documentation of SetBrushOrgEx(), the origin is assigned to the
1843                      next brush selected into the DC, so we should set it here */
1844                   brush->ptOrigin.x = dc->w.brushOrgX;
1845                   brush->ptOrigin.y = dc->w.brushOrgY;
1846
1847                   BRUSHOBJ_UnlockBrush((HBRUSH) hGDIObj);
1848                   objOrg = (HGDIOBJ)dc->w.hBrush;
1849                   dc->w.hBrush = (HBRUSH) hGDIObj;
1850                 }
1851               else
1852                 {
1853                   SetLastWin32Error(ERROR_INVALID_HANDLE);
1854                 }
1855               EngDeleteXlate(XlateObj);
1856             }
1857           else
1858             {
1859               SetLastWin32Error(ERROR_NO_SYSTEM_RESOURCES);
1860             }
1861         }
1862       else
1863         {
1864           SetLastWin32Error(ERROR_INVALID_HANDLE);
1865         }
1866       break;
1867
1868     case GDI_OBJECT_TYPE_FONT:
1869       objOrg = (HGDIOBJ)dc->w.hFont;
1870       dc->w.hFont = (HFONT) hGDIObj;
1871       TextIntRealizeFont(dc->w.hFont);
1872       break;
1873
1874     case GDI_OBJECT_TYPE_BITMAP:
1875       // must be memory dc to select bitmap
1876       if (!(dc->w.flags & DC_MEMORY))
1877         {
1878           DC_UnlockDc(hDC);
1879           return NULL;
1880         }
1881       pb = BITMAPOBJ_LockBitmap(hGDIObj);
1882       if (NULL == pb)
1883         {
1884           SetLastWin32Error(ERROR_INVALID_HANDLE);
1885           DC_UnlockDc(hDC);
1886           return NULL;
1887         }
1888       objOrg = (HGDIOBJ)dc->w.hBitmap;
1889
1890       /* Release the old bitmap, lock the new one and convert it to a SURF */
1891       EngDeleteSurface(dc->Surface);
1892       dc->w.hBitmap = hGDIObj;
1893       dc->Surface = (HSURF)BitmapToSurf(pb, dc->GDIDevice);
1894
1895       // if we're working with a DIB, get the palette [fixme: only create if the selected palette is null]
1896       if(pb->dib)
1897       {
1898         dc->w.bitsPerPixel = pb->dib->dsBmih.biBitCount;
1899
1900         if(pb->dib->dsBmih.biBitCount <= 8)
1901         {
1902           if(pb->dib->dsBmih.biBitCount == 1) { NumColors = 2; } else
1903           if(pb->dib->dsBmih.biBitCount == 4) { NumColors = 16; } else
1904           if(pb->dib->dsBmih.biBitCount == 8) { NumColors = 256; }
1905           dc->w.hPalette = PALETTE_AllocPaletteIndexedRGB(NumColors, pb->ColorMap);
1906         }
1907         else
1908         {
1909           dc->w.hPalette = PALETTE_AllocPalette(PAL_BITFIELDS, 0, NULL,
1910                                                 pb->dib->dsBitfields[0],
1911                                                 pb->dib->dsBitfields[1],
1912                                                 pb->dib->dsBitfields[2]);
1913         }
1914       }
1915       else
1916       {
1917         dc->w.bitsPerPixel = pb->bitmap.bmBitsPixel;
1918         if (1 == dc->w.bitsPerPixel)
1919           {
1920             MonoColorMap[0] = RGB(0, 0, 0);
1921             MonoColorMap[1] = RGB(255, 255, 255);
1922             dc->w.hPalette = PALETTE_AllocPaletteIndexedRGB(2, (RGBQUAD*)MonoColorMap);
1923           }
1924         else
1925           {
1926             dc->w.hPalette = dc->DevInfo->hpalDefault;
1927           }
1928       }
1929
1930       DC_UnlockDc ( hDC );
1931       hVisRgn = NtGdiCreateRectRgn ( 0, 0, pb->bitmap.bmWidth, pb->bitmap.bmHeight );
1932       NtGdiSelectVisRgn ( hDC, hVisRgn );
1933       NtGdiDeleteObject ( hVisRgn );
1934       BITMAPOBJ_UnlockBitmap(hGDIObj);
1935
1936       return objOrg;
1937
1938     case GDI_OBJECT_TYPE_REGION:
1939       DC_UnlockDc (hDC);
1940       /*
1941        * The return value is one of the following values:
1942        *  SIMPLEREGION
1943        *  COMPLEXREGION
1944        *  NULLREGION
1945        */
1946       return (HGDIOBJ) NtGdiSelectClipRgn(hDC, (HRGN) hGDIObj);
1947
1948     default:
1949       break;
1950   }
1951   DC_UnlockDc( hDC );
1952   return objOrg;
1953 }
1954
1955 WORD STDCALL
1956 NtGdiSetHookFlags(HDC hDC, WORD Flags)
1957 {
1958   WORD wRet;
1959   DC *dc = DC_LockDc(hDC);
1960
1961   if (NULL == dc)
1962     {
1963       SetLastWin32Error(ERROR_INVALID_HANDLE);
1964       return 0;
1965     }
1966
1967   wRet = dc->w.flags & DC_DIRTY;
1968
1969   /* "Undocumented Windows" info is slightly confusing.
1970    */
1971
1972   DPRINT("DC %p, Flags %04x\n", hDC, Flags);
1973
1974   if (Flags & DCHF_INVALIDATEVISRGN)
1975     {
1976       dc->w.flags |= DC_DIRTY;
1977     }
1978   else if (Flags & DCHF_VALIDATEVISRGN || 0 == Flags)
1979     {
1980       dc->w.flags &= ~DC_DIRTY;
1981     }
1982
1983   DC_UnlockDc(hDC);
1984
1985   return wRet;
1986 }
1987
1988 DC_SET_MODE( NtGdiSetBkMode, w.backgroundMode, TRANSPARENT, OPAQUE )
1989 DC_SET_MODE( NtGdiSetPolyFillMode, w.polyFillMode, ALTERNATE, WINDING )
1990 // DC_SET_MODE( NtGdiSetRelAbs, w.relAbsMode, ABSOLUTE, RELATIVE )
1991 DC_SET_MODE( NtGdiSetROP2, w.ROPmode, R2_BLACK, R2_WHITE )
1992 DC_SET_MODE( NtGdiSetStretchBltMode, w.stretchBltMode, BLACKONWHITE, HALFTONE )
1993
1994 //  ----------------------------------------------------  Private Interface
1995
1996 HDC FASTCALL
1997 DC_AllocDC(PUNICODE_STRING Driver)
1998 {
1999   PDC  NewDC;
2000   HDC  hDC;
2001   PWSTR Buf = NULL;
2002
2003   if (Driver != NULL)
2004   {
2005     Buf = ExAllocatePoolWithTag(PagedPool, Driver->MaximumLength, TAG_DC);
2006     if(!Buf)
2007     {
2008       return NULL;
2009     }
2010     RtlCopyMemory(Buf, Driver->Buffer, Driver->MaximumLength);
2011   }
2012
2013   hDC = (HDC) GDIOBJ_AllocObj(sizeof(DC), GDI_OBJECT_TYPE_DC, (GDICLEANUPPROC) DC_InternalDeleteDC);
2014   if (hDC == NULL)
2015   {
2016     if(Buf)
2017     {
2018       ExFreePool(Buf);
2019     }
2020     return  NULL;
2021   }
2022
2023   NewDC = DC_LockDc(hDC);
2024
2025   if (Driver != NULL)
2026   {
2027     RtlCopyMemory(&NewDC->DriverName, Driver, sizeof(UNICODE_STRING));
2028     NewDC->DriverName.Buffer = Buf;
2029   }
2030
2031   NewDC->w.xformWorld2Wnd.eM11 = 1.0f;
2032   NewDC->w.xformWorld2Wnd.eM12 = 0.0f;
2033   NewDC->w.xformWorld2Wnd.eM21 = 0.0f;
2034   NewDC->w.xformWorld2Wnd.eM22 = 1.0f;
2035   NewDC->w.xformWorld2Wnd.eDx = 0.0f;
2036   NewDC->w.xformWorld2Wnd.eDy = 0.0f;
2037   NewDC->w.xformWorld2Vport = NewDC->w.xformWorld2Wnd;
2038   NewDC->w.xformVport2World = NewDC->w.xformWorld2Wnd;
2039   NewDC->w.vport2WorldValid = TRUE;
2040   NewDC->w.MapMode = MM_TEXT;
2041   NewDC->wndExtX = 1.0f;
2042   NewDC->wndExtY = 1.0f;
2043   NewDC->vportExtX = 1.0f;
2044   NewDC->vportExtY = 1.0f;
2045
2046   NewDC->w.hFont = NtGdiGetStockObject(SYSTEM_FONT);
2047   TextIntRealizeFont(NewDC->w.hFont);
2048
2049   NewDC->w.hPalette = NtGdiGetStockObject(DEFAULT_PALETTE);
2050
2051   DC_UnlockDc(hDC);
2052
2053   return  hDC;
2054 }
2055
2056 HDC FASTCALL
2057 DC_FindOpenDC(PUNICODE_STRING  Driver)
2058 {
2059   return NULL;
2060 }
2061
2062 /*!
2063  * Initialize some common fields in the Device Context structure.
2064 */
2065 VOID FASTCALL
2066 DC_InitDC(HDC  DCHandle)
2067 {
2068 //  NtGdiRealizeDefaultPalette(DCHandle);
2069
2070   NtGdiSelectObject(DCHandle, NtGdiGetStockObject( WHITE_BRUSH ));
2071   NtGdiSelectObject(DCHandle, NtGdiGetStockObject( BLACK_PEN ));
2072   //NtGdiSelectObject(DCHandle, hFont);
2073
2074 //  CLIPPING_UpdateGCRegion(DCToInit);
2075
2076 }
2077
2078 VOID FASTCALL
2079 DC_FreeDC(HDC  DCToFree)
2080 {
2081   if (!GDIOBJ_FreeObj(DCToFree, GDI_OBJECT_TYPE_DC, GDIOBJFLAG_DEFAULT))
2082   {
2083     DPRINT("DC_FreeDC failed\n");
2084   }
2085 }
2086
2087 BOOL FASTCALL
2088 DC_InternalDeleteDC( PDC DCToDelete )
2089 {
2090
2091   RtlFreeUnicodeString(&DCToDelete->DriverName);
2092   return TRUE;
2093 }
2094
2095 HDC FASTCALL
2096 DC_GetNextDC (PDC pDC)
2097 {
2098   return pDC->hNext;
2099 }
2100
2101 VOID FASTCALL
2102 DC_SetNextDC (PDC pDC, HDC hNextDC)
2103 {
2104   pDC->hNext = hNextDC;
2105 }
2106
2107 VOID FASTCALL
2108 DC_UpdateXforms(PDC  dc)
2109 {
2110   XFORM  xformWnd2Vport;
2111   FLOAT  scaleX, scaleY;
2112
2113   /* Construct a transformation to do the window-to-viewport conversion */
2114   scaleX = (dc->wndExtX ? (FLOAT)dc->vportExtX / (FLOAT)dc->wndExtX : 0.0f);
2115   scaleY = (dc->wndExtY ? (FLOAT)dc->vportExtY / (FLOAT)dc->wndExtY : 0.0f);
2116   xformWnd2Vport.eM11 = scaleX;
2117   xformWnd2Vport.eM12 = 0.0;
2118   xformWnd2Vport.eM21 = 0.0;
2119   xformWnd2Vport.eM22 = scaleY;
2120   xformWnd2Vport.eDx  = (FLOAT)dc->vportOrgX - scaleX * (FLOAT)dc->wndOrgX;
2121   xformWnd2Vport.eDy  = (FLOAT)dc->vportOrgY - scaleY * (FLOAT)dc->wndOrgY;
2122
2123   /* Combine with the world transformation */
2124   IntGdiCombineTransform(&dc->w.xformWorld2Vport, &dc->w.xformWorld2Wnd, &xformWnd2Vport);
2125
2126   /* Create inverse of world-to-viewport transformation */
2127   dc->w.vport2WorldValid = DC_InvertXform(&dc->w.xformWorld2Vport, &dc->w.xformVport2World);
2128 }
2129
2130 BOOL FASTCALL
2131 DC_InvertXform(const XFORM *xformSrc,
2132                XFORM *xformDest)
2133 {
2134   FLOAT  determinant;
2135
2136   determinant = xformSrc->eM11*xformSrc->eM22 - xformSrc->eM12*xformSrc->eM21;
2137   if (determinant > -1e-12 && determinant < 1e-12)
2138   {
2139     return  FALSE;
2140   }
2141
2142   xformDest->eM11 =  xformSrc->eM22 / determinant;
2143   xformDest->eM12 = -xformSrc->eM12 / determinant;
2144   xformDest->eM21 = -xformSrc->eM21 / determinant;
2145   xformDest->eM22 =  xformSrc->eM11 / determinant;
2146   xformDest->eDx  = -xformSrc->eDx * xformDest->eM11 - xformSrc->eDy * xformDest->eM21;
2147   xformDest->eDy  = -xformSrc->eDx * xformDest->eM12 - xformSrc->eDy * xformDest->eM22;
2148
2149   return  TRUE;
2150 }
2151
2152 VOID FASTCALL
2153 DC_SetOwnership(HDC hDC, PEPROCESS Owner)
2154 {
2155   PDC DC;
2156
2157   GDIOBJ_SetOwnership(hDC, Owner);
2158   DC = DC_LockDc(hDC);
2159   if (NULL != DC)
2160     {
2161       if (NULL != DC->w.hClipRgn)
2162         {
2163           GDIOBJ_CopyOwnership(hDC, DC->w.hClipRgn);
2164         }
2165       if (NULL != DC->w.hVisRgn)
2166         {
2167           GDIOBJ_CopyOwnership(hDC, DC->w.hVisRgn);
2168         }
2169       if (NULL != DC->w.hGCClipRgn)
2170         {
2171           GDIOBJ_CopyOwnership(hDC, DC->w.hGCClipRgn);
2172         }
2173       DC_UnlockDc(hDC);
2174     }
2175 }
2176
2177 BOOL FASTCALL
2178 IntIsPrimarySurface(PSURFGDI SurfGDI)
2179 {
2180    if (PrimarySurface.Handle == NULL)
2181      {
2182        return FALSE;
2183      }
2184    return SurfGDI == (PSURFGDI)AccessInternalObject((ULONG) PrimarySurface.Handle) ? TRUE : FALSE;
2185 }
2186
2187 /*
2188  * Returns the color of the brush or pen that is currently selected into the DC.
2189  * This function is called from GetDCBrushColor() and GetDCPenColor()
2190  */
2191 COLORREF FASTCALL
2192 IntGetDCColor(HDC hDC, ULONG Object)
2193 {
2194   COLORREF Result;
2195   DC *dc;
2196   PPALGDI PalGDI;
2197   PGDIBRUSHOBJ pen;
2198   PGDIBRUSHOBJ brush;
2199   XLATEOBJ *XlateObj;
2200   HPALETTE Pal;
2201   USHORT Mode;
2202   ULONG iColor;
2203
2204   if(!(dc = DC_LockDc(hDC)))
2205   {
2206     SetLastWin32Error(ERROR_INVALID_HANDLE);
2207     return CLR_INVALID;
2208   }
2209
2210   switch(Object)
2211   {
2212     case OBJ_PEN:
2213     {
2214       if(!(pen = PENOBJ_LockPen(dc->w.hPen)))
2215       {
2216         DC_UnlockDc(hDC);
2217         return CLR_INVALID;
2218       }
2219       if(!(pen->flAttrs & GDIBRUSH_IS_SOLID))
2220       {
2221         /* FIXME - just bail here? */
2222         PENOBJ_UnlockPen(dc->w.hPen);
2223         DC_UnlockDc(hDC);
2224         return CLR_INVALID;
2225       }
2226       iColor = pen->BrushObject.iSolidColor;
2227       PENOBJ_UnlockPen(dc->w.hPen);
2228       break;
2229     }
2230     case OBJ_BRUSH:
2231     {
2232       if(!(brush = BRUSHOBJ_LockBrush(dc->w.hBrush)))
2233       {
2234         DC_UnlockDc(hDC);
2235         return CLR_INVALID;
2236       }
2237       if(!(brush->flAttrs & GDIBRUSH_IS_SOLID))
2238       {
2239         /* FIXME - just bail here? */
2240         BRUSHOBJ_UnlockBrush(dc->w.hBrush);
2241         DC_UnlockDc(hDC);
2242         return CLR_INVALID;
2243       }
2244       iColor = brush->BrushObject.iSolidColor;
2245       BRUSHOBJ_UnlockBrush(dc->w.hBrush);
2246       break;
2247     }
2248     default:
2249     {
2250       DC_UnlockDc(hDC);
2251       SetLastWin32Error(ERROR_INVALID_PARAMETER);
2252       return CLR_INVALID;
2253     }
2254   }
2255
2256   /* translate the color into RGB */
2257
2258   if(dc->w.hPalette)
2259     Pal = dc->w.hPalette;
2260
2261   Result = CLR_INVALID;
2262
2263   if((PalGDI = PALETTE_LockPalette(dc->w.hPalette)))
2264   {
2265     Mode = PalGDI->Mode;
2266     PALETTE_UnlockPalette(dc->w.hPalette);
2267     XlateObj = (XLATEOBJ*)IntEngCreateXlate(PAL_RGB, Mode, NULL, Pal);
2268     if(XlateObj)
2269     {
2270       Result = XLATEOBJ_iXlate(XlateObj, iColor);
2271       EngDeleteXlate(XlateObj);
2272     }
2273   }
2274
2275   DC_UnlockDc(hDC);
2276   return Result;
2277 }
2278
2279 /*
2280  * Changes the color of the brush or pen that is currently selected into the DC.
2281  * This function is called from SetDCBrushColor() and SetDCPenColor()
2282  */
2283 COLORREF FASTCALL
2284 IntSetDCColor(HDC hDC, ULONG Object, COLORREF Color)
2285 {
2286   COLORREF Result;
2287   DC *dc;
2288   PPALGDI PalGDI;
2289   PGDIBRUSHOBJ pen;
2290   PGDIBRUSHOBJ brush;
2291   XLATEOBJ *XlateObj;
2292   HPALETTE Pal;
2293   USHORT Mode;
2294   ULONG iColor;
2295
2296   if(Color == CLR_INVALID)
2297   {
2298     SetLastWin32Error(ERROR_INVALID_PARAMETER);
2299     return CLR_INVALID;
2300   }
2301
2302   if(!(dc = DC_LockDc(hDC)))
2303   {
2304     SetLastWin32Error(ERROR_INVALID_HANDLE);
2305     return CLR_INVALID;
2306   }
2307
2308   switch(Object)
2309   {
2310     case OBJ_PEN:
2311     {
2312       if(!(pen = PENOBJ_LockPen(dc->w.hPen)))
2313       {
2314         DC_UnlockDc(hDC);
2315         return CLR_INVALID;
2316       }
2317       if(!(pen->flAttrs & GDIBRUSH_IS_SOLID))
2318       {
2319         /* FIXME - just bail here? */
2320         PENOBJ_UnlockPen(dc->w.hPen);
2321         DC_UnlockDc(hDC);
2322         return CLR_INVALID;
2323       }
2324
2325       /* save old color index, translate it to RGB later */
2326       iColor = pen->BrushObject.iSolidColor;
2327
2328       if(!(PalGDI = PALETTE_LockPalette(dc->w.hPalette)))
2329       {
2330         PENOBJ_UnlockPen(dc->w.hPen);
2331         DC_UnlockDc(hDC);
2332         return CLR_INVALID;
2333       }
2334       Mode = PalGDI->Mode;
2335       PALETTE_UnlockPalette(dc->w.hPalette);
2336       if(!(XlateObj = (XLATEOBJ*)IntEngCreateXlate(Mode, PAL_RGB, dc->w.hPalette, NULL)))
2337       {
2338         PENOBJ_UnlockPen(dc->w.hPen);
2339         DC_UnlockDc(hDC);
2340         return CLR_INVALID;
2341       }
2342       pen->BrushObject.iSolidColor = XLATEOBJ_iXlate(XlateObj, (ULONG)Color);
2343       EngDeleteXlate(XlateObj);
2344       PENOBJ_UnlockPen(dc->w.hPen);
2345       break;
2346     }
2347     case OBJ_BRUSH:
2348     {
2349       if(!(brush = BRUSHOBJ_LockBrush(dc->w.hBrush)))
2350       {
2351         DC_UnlockDc(hDC);
2352         return CLR_INVALID;
2353       }
2354       if(!(brush->flAttrs & GDIBRUSH_IS_SOLID))
2355       {
2356         /* FIXME - just bail here? */
2357         BRUSHOBJ_UnlockBrush(dc->w.hBrush);
2358         DC_UnlockDc(hDC);
2359         return CLR_INVALID;
2360       }
2361
2362       /* save old color index, translate it to RGB later */
2363       iColor = brush->BrushObject.iSolidColor;
2364
2365       if(!(PalGDI = PALETTE_LockPalette(dc->w.hPalette)))
2366       {
2367         PENOBJ_UnlockPen(dc->w.hPen);
2368         DC_UnlockDc(hDC);
2369         return CLR_INVALID;
2370       }
2371       Mode = PalGDI->Mode;
2372       PALETTE_UnlockPalette(dc->w.hPalette);
2373       if(!(XlateObj = (XLATEOBJ*)IntEngCreateXlate(Mode, PAL_RGB, dc->w.hPalette, NULL)))
2374       {
2375         PENOBJ_UnlockPen(dc->w.hPen);
2376         DC_UnlockDc(hDC);
2377         return CLR_INVALID;
2378       }
2379       brush->BrushObject.iSolidColor = XLATEOBJ_iXlate(XlateObj, (ULONG)Color);
2380       EngDeleteXlate(XlateObj);
2381       BRUSHOBJ_UnlockBrush(dc->w.hBrush);
2382       break;
2383     }
2384     default:
2385     {
2386       DC_UnlockDc(hDC);
2387       SetLastWin32Error(ERROR_INVALID_PARAMETER);
2388       return CLR_INVALID;
2389     }
2390   }
2391
2392   /* translate the old color into RGB */
2393
2394   if(dc->w.hPalette)
2395     Pal = dc->w.hPalette;
2396
2397   Result = CLR_INVALID;
2398
2399   if((PalGDI = PALETTE_LockPalette(dc->w.hPalette)))
2400   {
2401     Mode = PalGDI->Mode;
2402     PALETTE_UnlockPalette(dc->w.hPalette);
2403     XlateObj = (XLATEOBJ*)IntEngCreateXlate(PAL_RGB, Mode, NULL, Pal);
2404     if(XlateObj)
2405     {
2406       Result = XLATEOBJ_iXlate(XlateObj, iColor);
2407       EngDeleteXlate(XlateObj);
2408     }
2409   }
2410
2411   DC_UnlockDc(hDC);
2412   return Result;
2413 }
2414
2415 /* EOF */