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