subsystems/win32/win32k/objects/dclife.c

   1 /*
   2  * COPYRIGHT:         See COPYING in the top level directory
   3  * PROJECT:           ReactOS kernel
   4  * PURPOSE:           Functions for creation and destruction of DCs
   5  * FILE:              subsystem/win32/win32k/objects/dclife.c
   6  * PROGRAMER:         Timo Kreuzer (timo.kreuzer@rectos.org)
   7  */
   8
   9 #include <win32k.h>
  10 #include <bugcodes.h>
  11
  12 #define NDEBUG
  13 #include <debug.h>
  14
  15 //FIXME: windows uses 0x0012009f
  16 #define DIRTY_DEFAULT DIRTY_CHARSET|DIRTY_BACKGROUND|DIRTY_TEXT|DIRTY_LINE|DIRTY_FILL
  17
  18 PSURFACE psurfDefaultBitmap = NULL;
  19 PBRUSH pbrDefaultBrush = NULL;
  20
  21 // FIXME: these should go to floatobj.h or something
  22 #define FLOATOBJ_0 {0x00000000, 0x00000000}
  23 #define FLOATOBJ_1 {0x40000000, 0x00000002}
  24 #define FLOATOBJ_16 {0x40000000, 0x00000006}
  25 #define FLOATOBJ_1_16 {0x40000000, 0xfffffffe}
  26
  27 static const FLOATOBJ gef0 = FLOATOBJ_0;
  28 static const FLOATOBJ gef1 = FLOATOBJ_1;
  29 static const FLOATOBJ gef16 = FLOATOBJ_16;
  30
  31 static const MATRIX     gmxWorldToDeviceDefault =
  32 {
  33     FLOATOBJ_16, FLOATOBJ_0,
  34     FLOATOBJ_0, FLOATOBJ_16,
  35     FLOATOBJ_0, FLOATOBJ_0,
  36     0, 0, 0x4b
  37 };
  38
  39 static const MATRIX     gmxDeviceToWorldDefault =
  40 {
  41     FLOATOBJ_1_16, FLOATOBJ_0,
  42     FLOATOBJ_0, FLOATOBJ_1_16,
  43     FLOATOBJ_0, FLOATOBJ_0,
  44     0, 0, 0x53
  45 };
  46
  47 static const MATRIX     gmxWorldToPageDefault =
  48 {
  49     FLOATOBJ_1, FLOATOBJ_0,
  50     FLOATOBJ_0, FLOATOBJ_1,
  51     FLOATOBJ_0, FLOATOBJ_0,
  52     0, 0, 0x63
  53 };
  54
  55 // HACK!! Fix XFORMOBJ then use 1:16 / 16:1
  56 #define gmxWorldToDeviceDefault gmxWorldToPageDefault
  57 #define gmxDeviceToWorldDefault gmxWorldToPageDefault
  58
  59 /** Internal functions ********************************************************/
  60
  61 NTSTATUS
  62 InitDcImpl()
  63 {
  64     psurfDefaultBitmap = SURFACE_ShareLockSurface(StockObjects[DEFAULT_BITMAP]);
  65     if (!psurfDefaultBitmap)
  66         return STATUS_UNSUCCESSFUL;
  67
  68     pbrDefaultBrush = BRUSH_ShareLockBrush(StockObjects[BLACK_BRUSH]);
  69     if (!pbrDefaultBrush)
  70         return STATUS_UNSUCCESSFUL;
  71
  72     return STATUS_SUCCESS;
  73 }
  74
  75
  76 PDC
  77 NTAPI
  78 DC_AllocDcWithHandle()
  79 {
  80     PDC pdc;
  81     pdc = (PDC)GDIOBJ_AllocObjWithHandle(GDILoObjType_LO_DC_TYPE);
  82
  83     pdc->pdcattr = &pdc->dcattr;
  84
  85     return pdc;
  86 }
  87
  88
  89 void
  90 DC_InitHack(PDC pdc)
  91 {
  92     HRGN hVisRgn;
  93
  94     TextIntRealizeFont(pdc->pdcattr->hlfntNew,NULL);
  95     pdc->pdcattr->iCS_CP = ftGdiGetTextCharsetInfo(pdc,NULL,0);
  96
  97     /* This should never fail */
  98     ASSERT(pdc->dclevel.ppal);
  99
 100     /* Select regions */
 101     // FIXME: too complicated, broken error handling
 102     pdc->rosdc.hClipRgn = NULL;
 103     pdc->rosdc.hGCClipRgn = NULL;
 104     hVisRgn = NtGdiCreateRectRgn(0, 0, pdc->dclevel.sizl.cx, pdc->dclevel.sizl.cy);
 105     ASSERT(hVisRgn);
 106     GdiSelectVisRgn(pdc->BaseObject.hHmgr, hVisRgn);
 107     GreDeleteObject(hVisRgn);
 108     ASSERT(pdc->prgnVis);
 109 }
 110
 111 VOID
 112 NTAPI
 113 DC_vInitDc(
 114     PDC pdc,
 115     DCTYPE dctype,
 116     PPDEVOBJ ppdev)
 117 {
 118     /* Setup some basic fields */
 119     pdc->dctype = dctype;
 120     pdc->ppdev = ppdev;
 121     pdc->dhpdev = ppdev->dhpdev;
 122     pdc->hsem = ppdev->hsemDevLock;
 123     pdc->flGraphicsCaps = ppdev->devinfo.flGraphicsCaps;
 124     pdc->flGraphicsCaps2 = ppdev->devinfo.flGraphicsCaps2;
 125     pdc->fs = DC_DIRTY_RAO;
 126
 127     /* Setup dc attribute */
 128     pdc->pdcattr = &pdc->dcattr;
 129     pdc->dcattr.pvLDC = NULL;
 130     pdc->dcattr.ulDirty_ = DIRTY_DEFAULT;
 131     if (ppdev == gppdevPrimary)
 132         pdc->dcattr.ulDirty_ |= DC_PRIMARY_DISPLAY;
 133
 134     /* Setup the DC size */
 135     if (dctype == DCTYPE_MEMORY)
 136     {
 137         /* Memory DCs have a 1 x 1 bitmap by default */
 138         pdc->dclevel.sizl.cx = 1;
 139         pdc->dclevel.sizl.cy = 1;
 140     }
 141     else
 142     {
 143         /* Other DC's are as big as the related PDEV */
 144             pdc->dclevel.sizl.cx = ppdev->gdiinfo.ulHorzRes;
 145             pdc->dclevel.sizl.cy = ppdev->gdiinfo.ulVertRes;
 146     }
 147
 148     /* Setup Window rect based on DC size */
 149     pdc->erclWindow.left = 0;
 150     pdc->erclWindow.top = 0;
 151     pdc->erclWindow.right = pdc->dclevel.sizl.cx;
 152     pdc->erclWindow.bottom = pdc->dclevel.sizl.cy;
 153
 154     if (dctype == DCTYPE_DIRECT)
 155     {
 156         /* Direct DCs get the surface from the PDEV */
 157         pdc->dclevel.pSurface = PDEVOBJ_pSurface(ppdev);
 158
 159         pdc->erclBounds.left = 0x7fffffff;
 160         pdc->erclBounds.top = 0x7fffffff;
 161         pdc->erclBounds.right = 0x80000000;
 162         pdc->erclBounds.bottom = 0x80000000;
 163         pdc->erclBoundsApp.left = 0xffffffff;
 164         pdc->erclBoundsApp.top = 0xfffffffc;
 165         pdc->erclBoundsApp.right = 0x00007ffc; // FIXME
 166         pdc->erclBoundsApp.bottom = 0x00000333; // FIXME
 167         pdc->erclClip = pdc->erclBounds;
 168 //        pdc->co
 169
 170         pdc->fs |= DC_SYNCHRONIZEACCESS | DC_ACCUM_APP | DC_PERMANANT | DC_DISPLAY;
 171     }
 172     else
 173     {
 174         /* Non-direct DCs don't have a surface by default */
 175         pdc->dclevel.pSurface = NULL;
 176
 177         // FIXME: HACK, because our code expects a surface
 178         pdc->dclevel.pSurface = SURFACE_ShareLockSurface(StockObjects[DEFAULT_BITMAP]);
 179
 180         pdc->erclBounds.left = 0;
 181         pdc->erclBounds.top = 0;
 182         pdc->erclBounds.right = 0;
 183         pdc->erclBounds.bottom = 0;
 184         pdc->erclBoundsApp = pdc->erclBounds;
 185         pdc->erclClip = pdc->erclWindow;
 186 //        pdc->co = NULL
 187     }
 188
 189 //        pdc->dcattr.VisRectRegion:
 190
 191     /* Setup coordinate transformation data */
 192         pdc->dclevel.mxWorldToDevice = gmxWorldToDeviceDefault;
 193         pdc->dclevel.mxDeviceToWorld = gmxDeviceToWorldDefault;
 194         pdc->dclevel.mxWorldToPage = gmxWorldToPageDefault;
 195         pdc->dclevel.efM11PtoD = gef16;
 196         pdc->dclevel.efM22PtoD = gef16;
 197         pdc->dclevel.efDxPtoD = gef0;
 198         pdc->dclevel.efDyPtoD = gef0;
 199         pdc->dclevel.efM11_TWIPS = gef0;
 200         pdc->dclevel.efM22_TWIPS = gef0;
 201         pdc->dclevel.efPr11 = gef0;
 202         pdc->dclevel.efPr22 = gef0;
 203         pdc->dcattr.mxWorldToDevice = pdc->dclevel.mxWorldToDevice;
 204         pdc->dcattr.mxDeviceToWorld = pdc->dclevel.mxDeviceToWorld;
 205         pdc->dcattr.mxWorldToPage = pdc->dclevel.mxWorldToPage;
 206         pdc->dcattr.efM11PtoD = pdc->dclevel.efM11PtoD;
 207         pdc->dcattr.efM22PtoD = pdc->dclevel.efM22PtoD;
 208         pdc->dcattr.efDxPtoD = pdc->dclevel.efDxPtoD;
 209         pdc->dcattr.efDyPtoD = pdc->dclevel.efDyPtoD;
 210         pdc->dcattr.iMapMode = MM_TEXT;
 211         pdc->dcattr.dwLayout = 0;
 212         pdc->dcattr.flXform = PAGE_TO_DEVICE_SCALE_IDENTITY |
 213                               PAGE_TO_DEVICE_IDENTITY |
 214                               WORLD_TO_PAGE_IDENTITY;
 215
 216     /* Setup more coordinates */
 217     pdc->ptlDCOrig.x = 0;
 218     pdc->ptlDCOrig.y = 0;
 219         pdc->dcattr.lWindowOrgx = 0;
 220         pdc->dcattr.ptlWindowOrg.x = 0;
 221         pdc->dcattr.ptlWindowOrg.y = 0;
 222         pdc->dcattr.szlWindowExt.cx = 1;
 223         pdc->dcattr.szlWindowExt.cy = 1;
 224         pdc->dcattr.ptlViewportOrg.x = 0;
 225         pdc->dcattr.ptlViewportOrg.y = 0;
 226         pdc->dcattr.szlViewportExt.cx = 1;
 227         pdc->dcattr.szlViewportExt.cy = 1;
 228     pdc->dcattr.szlVirtualDevicePixel.cx = ppdev->gdiinfo.ulHorzRes;
 229     pdc->dcattr.szlVirtualDevicePixel.cy = ppdev->gdiinfo.ulVertRes;
 230     pdc->dcattr.szlVirtualDeviceMm.cx = ppdev->gdiinfo.ulHorzSize;
 231     pdc->dcattr.szlVirtualDeviceMm.cy = ppdev->gdiinfo.ulVertSize;
 232     pdc->dcattr.szlVirtualDeviceSize.cx = 0;
 233     pdc->dcattr.szlVirtualDeviceSize.cy = 0;
 234
 235     /* Setup regions */
 236     pdc->prgnAPI = NULL;
 237     pdc->prgnVis = NULL; // FIXME
 238     pdc->prgnRao = NULL;
 239
 240     /* Setup palette */
 241     pdc->dclevel.hpal = StockObjects[DEFAULT_PALETTE];
 242     pdc->dclevel.ppal = PALETTE_ShareLockPalette(pdc->dclevel.hpal);
 243
 244     /* Setup path */
 245         pdc->dclevel.hPath = NULL;
 246     pdc->dclevel.flPath = 0;
 247 //      pdc->dclevel.lapath:
 248
 249     /* Setup colors */
 250         pdc->dcattr.crBackgroundClr = RGB(0xff, 0xff, 0xff);
 251         pdc->dcattr.ulBackgroundClr = RGB(0xff, 0xff, 0xff);
 252         pdc->dcattr.crForegroundClr = RGB(0, 0, 0);
 253         pdc->dcattr.ulForegroundClr = RGB(0, 0, 0);
 254         pdc->dcattr.crBrushClr = RGB(0xff, 0xff, 0xff);
 255         pdc->dcattr.ulBrushClr = RGB(0xff, 0xff, 0xff);
 256         pdc->dcattr.crPenClr = RGB(0, 0, 0);
 257         pdc->dcattr.ulPenClr = RGB(0, 0, 0);
 258
 259     /* Select the default fill and line brush */
 260         pdc->dcattr.hbrush = StockObjects[WHITE_BRUSH];
 261         pdc->dcattr.hpen = StockObjects[BLACK_PEN];
 262     pdc->dclevel.pbrFill = BRUSH_ShareLockBrush(pdc->pdcattr->hbrush);
 263     pdc->dclevel.pbrLine = PEN_ShareLockPen(pdc->pdcattr->hpen);
 264         pdc->dclevel.ptlBrushOrigin.x = 0;
 265         pdc->dclevel.ptlBrushOrigin.y = 0;
 266         pdc->dcattr.ptlBrushOrigin = pdc->dclevel.ptlBrushOrigin;
 267
 268     /* Initialize EBRUSHOBJs */
 269     EBRUSHOBJ_vInit(&pdc->eboFill, pdc->dclevel.pbrFill, pdc);
 270     EBRUSHOBJ_vInit(&pdc->eboLine, pdc->dclevel.pbrLine, pdc);
 271     EBRUSHOBJ_vInit(&pdc->eboText, pbrDefaultBrush, pdc);
 272     EBRUSHOBJ_vInit(&pdc->eboBackground, pbrDefaultBrush, pdc);
 273
 274     /* Setup fill data */
 275         pdc->dcattr.jROP2 = R2_COPYPEN;
 276         pdc->dcattr.jBkMode = 2;
 277         pdc->dcattr.lBkMode = 2;
 278         pdc->dcattr.jFillMode = ALTERNATE;
 279         pdc->dcattr.lFillMode = 1;
 280         pdc->dcattr.jStretchBltMode = 1;
 281         pdc->dcattr.lStretchBltMode = 1;
 282     pdc->ptlFillOrigin.x = 0;
 283     pdc->ptlFillOrigin.y = 0;
 284
 285     /* Setup drawing position */
 286         pdc->dcattr.ptlCurrent.x = 0;
 287         pdc->dcattr.ptlCurrent.y = 0;
 288         pdc->dcattr.ptfxCurrent.x = 0;
 289         pdc->dcattr.ptfxCurrent.y = 0;
 290
 291         /* Setup ICM data */
 292         pdc->dclevel.lIcmMode = 0;
 293         pdc->dcattr.lIcmMode = 0;
 294         pdc->dcattr.hcmXform = NULL;
 295         pdc->dcattr.flIcmFlags = 0;
 296         pdc->dcattr.IcmBrushColor = CLR_INVALID;
 297         pdc->dcattr.IcmPenColor = CLR_INVALID;
 298         pdc->dcattr.pvLIcm = NULL;
 299     pdc->dcattr.hColorSpace = NULL; // FIXME: 0189001f
 300         pdc->dclevel.pColorSpace = NULL; // FIXME
 301     pdc->pClrxFormLnk = NULL;
 302 //      pdc->dclevel.ca =
 303
 304         /* Setup font data */
 305     pdc->hlfntCur = NULL; // FIXME: 2f0a0cf8
 306     pdc->pPFFList = NULL;
 307     pdc->flSimulationFlags = 0;
 308     pdc->lEscapement = 0;
 309     pdc->prfnt = NULL;
 310         pdc->dcattr.flFontMapper = 0;
 311         pdc->dcattr.flTextAlign = 0;
 312         pdc->dcattr.lTextAlign = 0;
 313         pdc->dcattr.lTextExtra = 0;
 314         pdc->dcattr.lRelAbs = 1;
 315         pdc->dcattr.lBreakExtra = 0;
 316         pdc->dcattr.cBreak = 0;
 317     pdc->dcattr.hlfntNew = StockObjects[SYSTEM_FONT];
 318 //      pdc->dclevel.pFont = LFONT_ShareLockFont(pdc->dcattr.hlfntNew);
 319
 320     /* Other stuff */
 321     pdc->hdcNext = NULL;
 322     pdc->hdcPrev = NULL;
 323     pdc->ipfdDevMax = 0x0000ffff;
 324     pdc->ulCopyCount = -1;
 325     pdc->ptlDoBanding.x = 0;
 326     pdc->ptlDoBanding.y = 0;
 327         pdc->dclevel.lSaveDepth = 1;
 328         pdc->dclevel.hdcSave = NULL;
 329         pdc->dcattr.iGraphicsMode = GM_COMPATIBLE;
 330         pdc->dcattr.iCS_CP = 0;
 331     pdc->pSurfInfo = NULL;
 332
 333 }
 334
 335 BOOL
 336 INTERNAL_CALL
 337 DC_Cleanup(PVOID ObjectBody)
 338 {
 339     PDC pdc = (PDC)ObjectBody;
 340
 341     /* Free DC_ATTR */
 342     DC_vFreeDcAttr(pdc);
 343
 344     /* Delete saved DCs */
 345     DC_vRestoreDC(pdc, 1);
 346
 347     /* Deselect dc objects */
 348     DC_vSelectSurface(pdc, NULL);
 349     DC_vSelectFillBrush(pdc, NULL);
 350     DC_vSelectLineBrush(pdc, NULL);
 351     DC_vSelectPalette(pdc, NULL);
 352
 353     /* Cleanup the dc brushes */
 354     EBRUSHOBJ_vCleanup(&pdc->eboFill);
 355     EBRUSHOBJ_vCleanup(&pdc->eboLine);
 356     EBRUSHOBJ_vCleanup(&pdc->eboText);
 357     EBRUSHOBJ_vCleanup(&pdc->eboBackground);
 358
 359     /*  Free regions */
 360     if (pdc->rosdc.hClipRgn)
 361         GreDeleteObject(pdc->rosdc.hClipRgn);
 362     if (pdc->prgnVis)
 363         REGION_FreeRgnByHandle(pdc->prgnVis->BaseObject.hHmgr);
 364     if (pdc->rosdc.hGCClipRgn)
 365         GreDeleteObject(pdc->rosdc.hGCClipRgn);
 366     if (NULL != pdc->rosdc.CombinedClip)
 367         IntEngDeleteClipRegion(pdc->rosdc.CombinedClip);
 368
 369     PATH_Delete(pdc->dclevel.hPath);
 370
 371     if(pdc->dclevel.pSurface)
 372         SURFACE_ShareUnlockSurface(pdc->dclevel.pSurface);
 373
 374     PDEVOBJ_vRelease(pdc->ppdev) ;
 375
 376     return TRUE;
 377 }
 378
 379 BOOL
 380 FASTCALL
 381 DC_SetOwnership(HDC hDC, PEPROCESS Owner)
 382 {
 383     INT Index;
 384     PGDI_TABLE_ENTRY Entry;
 385     PDC pDC;
 386     BOOL ret = FALSE;
 387
 388     if (!GDIOBJ_SetOwnership(hDC, Owner))
 389     {
 390         DPRINT1("GDIOBJ_SetOwnership failed\n");
 391         return FALSE;
 392     }
 393
 394     pDC = DC_LockDc(hDC);
 395     if (!pDC)
 396     {
 397         DPRINT1("Could not lock DC\n");
 398         return FALSE;
 399     }
 400
 401     /*
 402        System Regions:
 403           These regions do not use attribute sections and when allocated, use
 404           gdiobj level functions.
 405     */
 406     if (pDC->rosdc.hClipRgn)
 407     {   // FIXME! HAX!!!
 408         Index = GDI_HANDLE_GET_INDEX(pDC->rosdc.hClipRgn);
 409         Entry = &GdiHandleTable->Entries[Index];
 410         if (Entry->UserData) FreeObjectAttr(Entry->UserData);
 411         Entry->UserData = NULL;
 412         //
 413         if (!GDIOBJ_SetOwnership(pDC->rosdc.hClipRgn, Owner)) goto leave;
 414     }
 415     if (pDC->prgnVis)
 416     {   // FIXME! HAX!!!
 417         Index = GDI_HANDLE_GET_INDEX(pDC->prgnVis->BaseObject.hHmgr);
 418         Entry = &GdiHandleTable->Entries[Index];
 419         if (Entry->UserData) FreeObjectAttr(Entry->UserData);
 420         Entry->UserData = NULL;
 421         //
 422         if (!GDIOBJ_SetOwnership(pDC->prgnVis->BaseObject.hHmgr, Owner)) goto leave;
 423     }
 424     if (pDC->rosdc.hGCClipRgn)
 425     {   // FIXME! HAX!!!
 426         Index = GDI_HANDLE_GET_INDEX(pDC->rosdc.hGCClipRgn);
 427         Entry = &GdiHandleTable->Entries[Index];
 428         if (Entry->UserData) FreeObjectAttr(Entry->UserData);
 429         Entry->UserData = NULL;
 430         //
 431         if (!GDIOBJ_SetOwnership(pDC->rosdc.hGCClipRgn, Owner)) goto leave;
 432     }
 433     if (pDC->dclevel.hPath)
 434     {
 435         if (!GDIOBJ_SetOwnership(pDC->dclevel.hPath, Owner)) goto leave;
 436     }
 437     ret = TRUE;
 438
 439 leave:
 440     DC_UnlockDc(pDC);
 441
 442     return ret;
 443 }
 444
 445
 446 int FASTCALL
 447 CLIPPING_UpdateGCRegion(DC* Dc);
 448
 449 static
 450 void
 451 DC_vUpdateDC(PDC pdc)
 452 {
 453     HRGN hVisRgn ;
 454     PPDEVOBJ ppdev = pdc->ppdev ;
 455
 456     pdc->dhpdev = ppdev->dhpdev;
 457
 458     SURFACE_ShareUnlockSurface(pdc->dclevel.pSurface);
 459     pdc->dclevel.pSurface = PDEVOBJ_pSurface(ppdev);
 460
 461     PDEVOBJ_sizl(pdc->ppdev, &pdc->dclevel.sizl);
 462     hVisRgn = NtGdiCreateRectRgn(0, 0, pdc->dclevel.sizl.cx, pdc->dclevel.sizl.cy);
 463     ASSERT(hVisRgn);
 464     GdiSelectVisRgn(pdc->BaseObject.hHmgr, hVisRgn);
 465     GreDeleteObject(hVisRgn);
 466
 467     pdc->flGraphicsCaps = ppdev->devinfo.flGraphicsCaps;
 468     pdc->flGraphicsCaps2 = ppdev->devinfo.flGraphicsCaps2;
 469
 470     /* Mark EBRUSHOBJs as dirty */
 471     pdc->pdcattr->ulDirty_ |= DIRTY_DEFAULT ;
 472 }
 473
 474 /* Prepare a blit for up to 2 DCs */
 475 /* rc1 and rc2 are the rectangles where we want to draw or
 476  * from where we take pixels. */
 477 VOID
 478 FASTCALL
 479 DC_vPrepareDCsForBlit(PDC pdc1,
 480                       RECT rc1,
 481                       PDC pdc2,
 482                       RECT rc2)
 483 {
 484     PDC pdcFirst, pdcSecond;
 485     PRECT prcFirst, prcSecond;
 486     /* Lock them in good order */
 487     if(pdc2)
 488     {
 489         if((ULONG_PTR)pdc1->ppdev->hsemDevLock >= (ULONG_PTR)pdc2->ppdev->hsemDevLock)
 490         {
 491             pdcFirst = pdc1;
 492             prcFirst = &rc1;
 493             pdcSecond = pdc2;
 494             prcSecond = &rc2;
 495         }
 496         else
 497         {
 498             pdcFirst = pdc2;
 499             prcFirst = &rc2;
 500             pdcSecond = pdc1;
 501             prcSecond = &rc1;
 502         }
 503     }
 504     else
 505     {
 506         pdcFirst = pdc1 ;
 507         prcFirst = &rc1;
 508         pdcSecond = NULL ;
 509     }
 510
 511     if(pdcFirst && pdcFirst->dctype == DCTYPE_DIRECT)
 512     {
 513         EngAcquireSemaphore(pdcFirst->ppdev->hsemDevLock);
 514         MouseSafetyOnDrawStart(pdcFirst->ppdev,
 515                                     prcFirst->left,
 516                                     prcFirst->top,
 517                                     prcFirst->right,
 518                                     prcFirst->bottom) ;
 519         /* Update surface if needed */
 520         if(pdcFirst->ppdev->pSurface != pdcFirst->dclevel.pSurface)
 521         {
 522             DC_vUpdateDC(pdcFirst);
 523         }
 524     }
 525     if(pdcSecond && pdcSecond->dctype == DCTYPE_DIRECT)
 526     {
 527         EngAcquireSemaphore(pdcSecond->ppdev->hsemDevLock);
 528         MouseSafetyOnDrawStart(pdcSecond->ppdev,
 529                                     prcSecond->left,
 530                                     prcSecond->top,
 531                                     prcSecond->right,
 532                                     prcSecond->bottom) ;
 533         /* Update surface if needed */
 534         if(pdcSecond->ppdev->pSurface != pdcSecond->dclevel.pSurface)
 535         {
 536             DC_vUpdateDC(pdcSecond);
 537         }
 538     }
 539 }
 540
 541 /* Finishes a blit for one or two DCs */
 542 VOID
 543 FASTCALL
 544 DC_vFinishBlit(PDC pdc1, PDC pdc2)
 545 {
 546     if(pdc1->dctype == DCTYPE_DIRECT)
 547     {
 548         MouseSafetyOnDrawEnd(pdc1->ppdev);
 549         EngReleaseSemaphore(pdc1->ppdev->hsemDevLock);
 550     }
 551
 552     if(pdc2)
 553     {
 554         if(pdc2->dctype == DCTYPE_DIRECT)
 555         {
 556             MouseSafetyOnDrawEnd(pdc2->ppdev);
 557             EngReleaseSemaphore(pdc2->ppdev->hsemDevLock);
 558         }
 559     }
 560 }
 561
 562 HDC
 563 NTAPI
 564 GreOpenDCW(
 565     PUNICODE_STRING pustrDevice,
 566     DEVMODEW *pdmInit,
 567     PUNICODE_STRING pustrLogAddr,
 568     ULONG iType,
 569     BOOL bDisplay,
 570     HANDLE hspool,
 571     VOID *pDriverInfo2,
 572     VOID *pUMdhpdev)
 573 {
 574     PPDEVOBJ ppdev;
 575     PDC pdc;
 576     HDC hdc;
 577
 578     DPRINT("GreOpenDCW(%S, iType=%ld)\n",
 579            pustrDevice ? pustrDevice->Buffer : NULL, iType);
 580
 581     /* Get a PDEVOBJ for the device */
 582     ppdev = EngpGetPDEV(pustrDevice);
 583     if (!ppdev)
 584     {
 585         DPRINT1("Didn't find a suitable PDEV\n");
 586         return NULL;
 587     }
 588
 589     DPRINT("GreOpenDCW - ppdev = %p\n", ppdev);
 590
 591     pdc = DC_AllocDcWithHandle();
 592     if (!pdc)
 593     {
 594         DPRINT1("Could not Allocate a DC\n");
 595         PDEVOBJ_vRelease(ppdev);
 596         return NULL;
 597     }
 598     hdc = pdc->BaseObject.hHmgr;
 599
 600     /* Lock ppdev and initialize the new DC */
 601     DC_vInitDc(pdc, iType, ppdev);
 602     /* FIXME: HACK! */
 603     DC_InitHack(pdc);
 604
 605     DC_AllocDcAttr(pdc);
 606
 607     DC_UnlockDc(pdc);
 608
 609     DPRINT("returning hdc = %p\n", hdc);
 610
 611     return hdc;
 612 }
 613
 614 HDC
 615 APIENTRY
 616 NtGdiOpenDCW(
 617     PUNICODE_STRING pustrDevice,
 618     DEVMODEW *pdmInit,
 619     PUNICODE_STRING pustrLogAddr,
 620     ULONG iType,
 621     BOOL bDisplay,
 622     HANDLE hspool,
 623     VOID *pDriverInfo2,
 624     VOID *pUMdhpdev)
 625 {
 626     UNICODE_STRING ustrDevice;
 627     WCHAR awcDevice[CCHDEVICENAME];
 628     DEVMODEW dmInit;
 629     PVOID dhpdev;
 630     HDC hdc;
 631
 632     /* Only if a devicename is given, we need any data */
 633     if (pustrDevice)
 634     {
 635         /* Initialize destination string */
 636         RtlInitEmptyUnicodeString(&ustrDevice, awcDevice, sizeof(awcDevice));
 637
 638         _SEH2_TRY
 639         {
 640             /* Probe the UNICODE_STRING and the buffer */
 641             ProbeForRead(pustrDevice, sizeof(UNICODE_STRING), 1);
 642             ProbeForRead(pustrDevice->Buffer, pustrDevice->Length, 1);
 643
 644             /* Copy the string */
 645             RtlCopyUnicodeString(&ustrDevice, pustrDevice);
 646
 647             if (pdmInit)
 648             {
 649                 /* FIXME: could be larger */
 650                 ProbeForRead(pdmInit, sizeof(DEVMODEW), 1);
 651                 RtlCopyMemory(&dmInit, pdmInit, sizeof(DEVMODEW));
 652             }
 653
 654             if (pUMdhpdev)
 655             {
 656                 ProbeForWrite(pUMdhpdev, sizeof(HANDLE), 1);
 657             }
 658         }
 659         _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
 660         {
 661             SetLastNtError(_SEH2_GetExceptionCode());
 662             _SEH2_YIELD(return NULL);
 663         }
 664         _SEH2_END
 665     }
 666     else
 667     {
 668         pdmInit = NULL;
 669         pUMdhpdev = NULL;
 670     }
 671
 672     /* FIXME: HACK! */
 673     if (pustrDevice)
 674     {
 675         UNICODE_STRING ustrDISPLAY = RTL_CONSTANT_STRING(L"DISPLAY");
 676         if (RtlEqualUnicodeString(&ustrDevice, &ustrDISPLAY, TRUE))
 677         {
 678             pustrDevice = NULL;
 679         }
 680     }
 681
 682     /* Call the internal function */
 683     hdc = GreOpenDCW(pustrDevice ? &ustrDevice : NULL,
 684                      pdmInit ? &dmInit : NULL,
 685                      NULL, // fixme pwszLogAddress
 686                      iType,
 687                      bDisplay,
 688                      hspool,
 689                      NULL, //FIXME: pDriverInfo2
 690                      pUMdhpdev ? &dhpdev : NULL);
 691
 692     /* If we got a HDC and a UM dhpdev is requested,... */
 693     if (hdc && pUMdhpdev)
 694     {
 695         /* Copy dhpdev to caller (FIXME: use dhpdev?? */
 696         _SEH2_TRY
 697         {
 698             /* Pointer was already probed */
 699             *(HANDLE*)pUMdhpdev = dhpdev;
 700         }
 701         _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
 702         {
 703             /* Ignore error */
 704         }
 705         _SEH2_END
 706     }
 707
 708     return hdc;
 709 }
 710
 711
 712 HDC
 713 APIENTRY
 714 NtGdiCreateCompatibleDC(HDC hdc)
 715 {
 716     HDC hdcNew;
 717     PPDEVOBJ ppdev;
 718     PDC pdc, pdcNew;
 719
 720     DPRINT("NtGdiCreateCompatibleDC(0x%p)\n", hdc);
 721
 722     /* Did the caller provide a DC? */
 723     if (hdc)
 724     {
 725         /* Yes, try to lock it */
 726         pdc = DC_LockDc(hdc);
 727         if (!pdc)
 728         {
 729             DPRINT1("Could not lock source DC %p\n", hdc);
 730             return NULL;
 731         }
 732
 733         /* Get the pdev from the DC */
 734         ppdev = pdc->ppdev;
 735         InterlockedIncrement(&ppdev->cPdevRefs);
 736
 737         /* Unlock the source DC */
 738         DC_UnlockDc(pdc);
 739     }
 740     else
 741     {
 742         /* No DC given, get default device */
 743         ppdev = EngpGetPDEV(NULL);
 744     }
 745
 746     if (!ppdev)
 747     {
 748         DPRINT1("Didn't find a suitable PDEV\n");
 749         return NULL;
 750     }
 751
 752     /* Allocate a new DC */
 753     pdcNew = DC_AllocDcWithHandle();
 754     if (!pdcNew)
 755     {
 756         DPRINT1("Could not allocate a new DC\n");
 757         PDEVOBJ_vRelease(ppdev);
 758         return NULL;
 759     }
 760     hdcNew = pdcNew->BaseObject.hHmgr;
 761
 762     /* Lock ppdev and initialize the new DC */
 763     DC_vInitDc(pdcNew, DCTYPE_MEMORY, ppdev);
 764     /* FIXME: HACK! */
 765     DC_InitHack(pdcNew);
 766
 767     /* Allocate a dc attribute */
 768     DC_AllocDcAttr(pdcNew);
 769
 770     // HACK!
 771     DC_vSelectSurface(pdcNew, psurfDefaultBitmap);
 772
 773     DC_UnlockDc(pdcNew);
 774
 775     DPRINT("Leave NtGdiCreateCompatibleDC hdcNew = %p\n", hdcNew);
 776
 777     return hdcNew;
 778 }
 779
 780 BOOL
 781 FASTCALL
 782 IntGdiDeleteDC(HDC hDC, BOOL Force)
 783 {
 784     PDC DCToDelete = DC_LockDc(hDC);
 785
 786     if (DCToDelete == NULL)
 787     {
 788         SetLastWin32Error(ERROR_INVALID_HANDLE);
 789         return FALSE;
 790     }
 791
 792     if (!Force)
 793     {
 794         /* Windows permits NtGdiDeleteObjectApp to delete a permanent DC
 795          * For some reason, it's still a valid handle, pointing to some kernel data.
 796          * Not sure if this is a bug, a feature, some cache stuff... Who knows?
 797          * See NtGdiDeleteObjectApp test for details */
 798         if (DCToDelete->fs & DC_FLAG_PERMANENT)
 799         {
 800             DC_UnlockDc(DCToDelete);
 801             if(UserReleaseDC(NULL, hDC, FALSE))
 802             {
 803                 /* ReactOs feature : call UserReleaseDC
 804                  * I don't think windows does it.
 805                  * Still, complain, no one should ever call DeleteDC
 806                  * on a window DC */
 807                  DPRINT1("No, you naughty application!\n");
 808                  return TRUE;
 809             }
 810             else
 811             {
 812                 /* This is not a window owned DC.
 813                  * Force its deletion */
 814                 return IntGdiDeleteDC(hDC, TRUE);
 815             }
 816         }
 817     }
 818
 819     DC_UnlockDc(DCToDelete);
 820
 821     if (!IsObjectDead(hDC))
 822     {
 823         if (!GDIOBJ_FreeObjByHandle(hDC, GDI_OBJECT_TYPE_DC))
 824         {
 825             DPRINT1("DC_FreeDC failed\n");
 826         }
 827     }
 828     else
 829     {
 830         DPRINT1("Attempted to Delete 0x%x currently being destroyed!!!\n", hDC);
 831     }
 832
 833     return TRUE;
 834 }
 835
 836 BOOL
 837 APIENTRY
 838 NtGdiDeleteObjectApp(HANDLE DCHandle)
 839 {
 840     /* Complete all pending operations */
 841     NtGdiFlushUserBatch();
 842
 843     if (GDI_HANDLE_IS_STOCKOBJ(DCHandle)) return TRUE;
 844
 845     if (GDI_HANDLE_GET_TYPE(DCHandle) != GDI_OBJECT_TYPE_DC)
 846         return GreDeleteObject((HGDIOBJ) DCHandle);
 847
 848     if (IsObjectDead((HGDIOBJ)DCHandle)) return TRUE;
 849
 850     if (!GDIOBJ_OwnedByCurrentProcess(DCHandle))
 851     {
 852         SetLastWin32Error(ERROR_INVALID_HANDLE);
 853         return FALSE;
 854     }
 855
 856     return IntGdiDeleteDC(DCHandle, FALSE);
 857 }
 858
 859 BOOL
 860 FASTCALL
 861 MakeInfoDC(PDC pdc, BOOL bSet)
 862 {
 863     PSURFACE pSurface;
 864     SIZEL sizl;
 865
 866     /* Can not be a display DC. */
 867     if (pdc->fs & DC_FLAG_DISPLAY) return FALSE;
 868     if (bSet)
 869     {
 870         if (pdc->fs & DC_FLAG_TEMPINFODC || pdc->dctype == DC_TYPE_DIRECT)
 871             return FALSE;
 872
 873         pSurface = pdc->dclevel.pSurface;
 874         pdc->fs |= DC_FLAG_TEMPINFODC;
 875         pdc->pSurfInfo = pSurface;
 876         pdc->dctype = DC_TYPE_INFO;
 877         pdc->dclevel.pSurface = NULL;
 878
 879         PDEVOBJ_sizl(pdc->ppdev, &sizl);
 880
 881         if ( sizl.cx == pdc->dclevel.sizl.cx &&
 882              sizl.cy == pdc->dclevel.sizl.cy )
 883             return TRUE;
 884
 885         pdc->dclevel.sizl.cx = sizl.cx;
 886         pdc->dclevel.sizl.cy = sizl.cy;
 887     }
 888     else
 889     {
 890         if (!(pdc->fs & DC_FLAG_TEMPINFODC) || pdc->dctype != DC_TYPE_INFO)
 891             return FALSE;
 892
 893         pSurface = pdc->pSurfInfo;
 894         pdc->fs &= ~DC_FLAG_TEMPINFODC;
 895         pdc->dclevel.pSurface = pSurface;
 896         pdc->dctype = DC_TYPE_DIRECT;
 897         pdc->pSurfInfo = NULL;
 898
 899         if ( !pSurface ||
 900              (pSurface->SurfObj.sizlBitmap.cx == pdc->dclevel.sizl.cx &&
 901               pSurface->SurfObj.sizlBitmap.cy == pdc->dclevel.sizl.cy) )
 902             return TRUE;
 903
 904         pdc->dclevel.sizl.cx = pSurface->SurfObj.sizlBitmap.cx;
 905         pdc->dclevel.sizl.cy = pSurface->SurfObj.sizlBitmap.cy;
 906     }
 907     return IntSetDefaultRegion(pdc);
 908 }
 909
 910 /*
 911 * @implemented
 912 */
 913 BOOL
 914 APIENTRY
 915 NtGdiMakeInfoDC(
 916     IN HDC hdc,
 917     IN BOOL bSet)
 918 {
 919     BOOL Ret;
 920     PDC pdc = DC_LockDc(hdc);
 921     if (pdc)
 922     {
 923         Ret = MakeInfoDC(pdc, bSet);
 924         DC_UnlockDc(pdc);
 925         return Ret;
 926     }
 927     return FALSE;
 928 }
 929
 930
 931 HDC FASTCALL
 932 IntGdiCreateDC(
 933     PUNICODE_STRING Driver,
 934     PUNICODE_STRING pustrDevice,
 935     PVOID pUMdhpdev,
 936     CONST PDEVMODEW pdmInit,
 937     BOOL CreateAsIC)
 938 {
 939     HDC hdc;
 940
 941     hdc = GreOpenDCW(pustrDevice,
 942                      pdmInit,
 943                      NULL,
 944                      CreateAsIC ? DCTYPE_INFO :
 945                           (Driver ? DC_TYPE_DIRECT : DC_TYPE_DIRECT),
 946                      TRUE,
 947                      NULL,
 948                      NULL,
 949                      pUMdhpdev);
 950
 951     return hdc;
 952 }
 953
 954 HDC FASTCALL
 955 IntGdiCreateDisplayDC(HDEV hDev, ULONG DcType, BOOL EmptyDC)
 956 {
 957     HDC hDC;
 958     UNIMPLEMENTED;
 959     ASSERT(FALSE);
 960
 961     if (DcType == DC_TYPE_MEMORY)
 962         hDC = NtGdiCreateCompatibleDC(NULL); // OH~ Yuck! I think I taste vomit in my mouth!
 963     else
 964         hDC = IntGdiCreateDC(NULL, NULL, NULL, NULL, (DcType == DC_TYPE_INFO));
 965
 966     return hDC;
 967 }
 968