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 <w32k.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 #if 0
 119     if (dctype == DCTYPE_DIRECT)
 120     {
 121         /* Lock ppdev */
 122         EngAcquireSemaphoreShared(ppdev->hsemDevLock);
 123     }
 124 #endif
 125
 126     /* Setup some basic fields */
 127     pdc->dctype = dctype;
 128     pdc->ppdev = ppdev;
 129     pdc->dhpdev = ppdev->dhpdev;
 130     pdc->hsem = ppdev->hsemDevLock;
 131     pdc->flGraphicsCaps = ppdev->devinfo.flGraphicsCaps;
 132     pdc->flGraphicsCaps2 = ppdev->devinfo.flGraphicsCaps2;
 133     pdc->fs = DC_DIRTY_RAO;
 134
 135     /* Setup dc attribute */
 136     pdc->pdcattr = &pdc->dcattr;
 137     pdc->dcattr.pvLDC = NULL;
 138     pdc->dcattr.ulDirty_ = DIRTY_DEFAULT;
 139     if (ppdev == gppdevPrimary)
 140         pdc->dcattr.ulDirty_ |= DC_PRIMARY_DISPLAY;
 141
 142     /* Setup the DC size */
 143     if (dctype == DCTYPE_MEMORY)
 144     {
 145         /* Memory DCs have a 1 x 1 bitmap by default */
 146         pdc->dclevel.sizl.cx = 1;
 147         pdc->dclevel.sizl.cy = 1;
 148     }
 149     else
 150     {
 151         /* Other DC's are as big as the related PDEV */
 152             pdc->dclevel.sizl.cx = ppdev->gdiinfo.ulHorzRes;
 153             pdc->dclevel.sizl.cy = ppdev->gdiinfo.ulVertRes;
 154     }
 155
 156     /* Setup Window rect based on DC size */
 157     pdc->erclWindow.left = 0;
 158     pdc->erclWindow.top = 0;
 159     pdc->erclWindow.right = pdc->dclevel.sizl.cx;
 160     pdc->erclWindow.bottom = pdc->dclevel.sizl.cy;
 161
 162     if (dctype == DCTYPE_DIRECT)
 163     {
 164         /* Direct DCs get the surface from the PDEV */
 165         pdc->dclevel.pSurface = PDEVOBJ_pSurface(ppdev);
 166
 167         pdc->erclBounds.left = 0x7fffffff;
 168         pdc->erclBounds.top = 0x7fffffff;
 169         pdc->erclBounds.right = 0x80000000;
 170         pdc->erclBounds.bottom = 0x80000000;
 171         pdc->erclBoundsApp.left = 0xffffffff;
 172         pdc->erclBoundsApp.top = 0xfffffffc;
 173         pdc->erclBoundsApp.right = 0x00007ffc; // FIXME
 174         pdc->erclBoundsApp.bottom = 0x00000333; // FIXME
 175         pdc->erclClip = pdc->erclBounds;
 176 //        pdc->co
 177
 178         pdc->fs |= DC_SYNCHRONIZEACCESS | DC_ACCUM_APP | DC_PERMANANT | DC_DISPLAY;
 179     }
 180     else
 181     {
 182         /* Non-direct DCs don't have a surface by default */
 183         pdc->dclevel.pSurface = NULL;
 184
 185         // FIXME: HACK, because our code expects a surface
 186         pdc->dclevel.pSurface = SURFACE_ShareLockSurface(StockObjects[DEFAULT_BITMAP]);
 187
 188         pdc->erclBounds.left = 0;
 189         pdc->erclBounds.top = 0;
 190         pdc->erclBounds.right = 0;
 191         pdc->erclBounds.bottom = 0;
 192         pdc->erclBoundsApp = pdc->erclBounds;
 193         pdc->erclClip = pdc->erclWindow;
 194 //        pdc->co = NULL
 195     }
 196
 197 //        pdc->dcattr.VisRectRegion:
 198
 199     /* Setup coordinate transformation data */
 200         pdc->dclevel.mxWorldToDevice = gmxWorldToDeviceDefault;
 201         pdc->dclevel.mxDeviceToWorld = gmxDeviceToWorldDefault;
 202         pdc->dclevel.mxWorldToPage = gmxWorldToPageDefault;
 203         pdc->dclevel.efM11PtoD = gef16;
 204         pdc->dclevel.efM22PtoD = gef16;
 205         pdc->dclevel.efDxPtoD = gef0;
 206         pdc->dclevel.efDyPtoD = gef0;
 207         pdc->dclevel.efM11_TWIPS = gef0;
 208         pdc->dclevel.efM22_TWIPS = gef0;
 209         pdc->dclevel.efPr11 = gef0;
 210         pdc->dclevel.efPr22 = gef0;
 211         pdc->dcattr.mxWorldToDevice = pdc->dclevel.mxWorldToDevice;
 212         pdc->dcattr.mxDeviceToWorld = pdc->dclevel.mxDeviceToWorld;
 213         pdc->dcattr.mxWorldToPage = pdc->dclevel.mxWorldToPage;
 214         pdc->dcattr.efM11PtoD = pdc->dclevel.efM11PtoD;
 215         pdc->dcattr.efM22PtoD = pdc->dclevel.efM22PtoD;
 216         pdc->dcattr.efDxPtoD = pdc->dclevel.efDxPtoD;
 217         pdc->dcattr.efDyPtoD = pdc->dclevel.efDyPtoD;
 218         pdc->dcattr.iMapMode = MM_TEXT;
 219         pdc->dcattr.dwLayout = 0;
 220         pdc->dcattr.flXform = PAGE_TO_DEVICE_SCALE_IDENTITY |
 221                               PAGE_TO_DEVICE_IDENTITY |
 222                               WORLD_TO_PAGE_IDENTITY;
 223
 224     /* Setup more coordinates */
 225     pdc->ptlDCOrig.x = 0;
 226     pdc->ptlDCOrig.y = 0;
 227         pdc->dcattr.lWindowOrgx = 0;
 228         pdc->dcattr.ptlWindowOrg.x = 0;
 229         pdc->dcattr.ptlWindowOrg.y = 0;
 230         pdc->dcattr.szlWindowExt.cx = 1;
 231         pdc->dcattr.szlWindowExt.cy = 1;
 232         pdc->dcattr.ptlViewportOrg.x = 0;
 233         pdc->dcattr.ptlViewportOrg.y = 0;
 234         pdc->dcattr.szlViewportExt.cx = 1;
 235         pdc->dcattr.szlViewportExt.cy = 1;
 236     pdc->dcattr.szlVirtualDevicePixel.cx = 0;
 237     pdc->dcattr.szlVirtualDevicePixel.cy = 0;
 238     pdc->dcattr.szlVirtualDeviceMm.cx = 0;
 239     pdc->dcattr.szlVirtualDeviceMm.cy = 0;
 240     pdc->dcattr.szlVirtualDeviceSize.cx = 0;
 241     pdc->dcattr.szlVirtualDeviceSize.cy = 0;
 242
 243     /* Setup regions */
 244     pdc->prgnAPI = NULL;
 245     pdc->prgnVis = NULL; // FIXME
 246     pdc->prgnRao = NULL;
 247
 248     /* Setup palette */
 249     pdc->dclevel.hpal = StockObjects[DEFAULT_PALETTE];
 250     pdc->dclevel.ppal = PALETTE_ShareLockPalette(pdc->dclevel.hpal);
 251
 252     /* Setup path */
 253         pdc->dclevel.hPath = NULL;
 254     pdc->dclevel.flPath = 0;
 255 //      pdc->dclevel.lapath:
 256
 257     /* Setup colors */
 258         pdc->dcattr.crBackgroundClr = RGB(0xff, 0xff, 0xff);
 259         pdc->dcattr.ulBackgroundClr = RGB(0xff, 0xff, 0xff);
 260         pdc->dcattr.crForegroundClr = RGB(0, 0, 0);
 261         pdc->dcattr.ulForegroundClr = RGB(0, 0, 0);
 262         pdc->dcattr.crBrushClr = RGB(0xff, 0xff, 0xff);
 263         pdc->dcattr.ulBrushClr = RGB(0xff, 0xff, 0xff);
 264         pdc->dcattr.crPenClr = RGB(0, 0, 0);
 265         pdc->dcattr.ulPenClr = RGB(0, 0, 0);
 266
 267     /* Select the default fill and line brush */
 268         pdc->dcattr.hbrush = StockObjects[WHITE_BRUSH];
 269         pdc->dcattr.hpen = StockObjects[BLACK_PEN];
 270     pdc->dclevel.pbrFill = BRUSH_ShareLockBrush(pdc->pdcattr->hbrush);
 271     pdc->dclevel.pbrLine = PEN_ShareLockPen(pdc->pdcattr->hpen);
 272         pdc->dclevel.ptlBrushOrigin.x = 0;
 273         pdc->dclevel.ptlBrushOrigin.y = 0;
 274         pdc->dcattr.ptlBrushOrigin = pdc->dclevel.ptlBrushOrigin;
 275
 276     /* Initialize EBRUSHOBJs */
 277     EBRUSHOBJ_vInit(&pdc->eboFill, pdc->dclevel.pbrFill, pdc);
 278     EBRUSHOBJ_vInit(&pdc->eboLine, pdc->dclevel.pbrLine, pdc);
 279     EBRUSHOBJ_vInit(&pdc->eboText, pbrDefaultBrush, pdc);
 280     EBRUSHOBJ_vInit(&pdc->eboBackground, pbrDefaultBrush, pdc);
 281
 282     /* Setup fill data */
 283         pdc->dcattr.jROP2 = R2_COPYPEN;
 284         pdc->dcattr.jBkMode = 2;
 285         pdc->dcattr.lBkMode = 2;
 286         pdc->dcattr.jFillMode = ALTERNATE;
 287         pdc->dcattr.lFillMode = 1;
 288         pdc->dcattr.jStretchBltMode = 1;
 289         pdc->dcattr.lStretchBltMode = 1;
 290     pdc->ptlFillOrigin.x = 0;
 291     pdc->ptlFillOrigin.y = 0;
 292
 293     /* Setup drawing position */
 294         pdc->dcattr.ptlCurrent.x = 0;
 295         pdc->dcattr.ptlCurrent.y = 0;
 296         pdc->dcattr.ptfxCurrent.x = 0;
 297         pdc->dcattr.ptfxCurrent.y = 0;
 298
 299         /* Setup ICM data */
 300         pdc->dclevel.lIcmMode = 0;
 301         pdc->dcattr.lIcmMode = 0;
 302         pdc->dcattr.hcmXform = NULL;
 303         pdc->dcattr.flIcmFlags = 0;
 304         pdc->dcattr.IcmBrushColor = CLR_INVALID;
 305         pdc->dcattr.IcmPenColor = CLR_INVALID;
 306         pdc->dcattr.pvLIcm = NULL;
 307     pdc->dcattr.hColorSpace = NULL; // FIXME: 0189001f
 308         pdc->dclevel.pColorSpace = NULL; // FIXME
 309     pdc->pClrxFormLnk = NULL;
 310 //      pdc->dclevel.ca =
 311
 312         /* Setup font data */
 313     pdc->hlfntCur = NULL; // FIXME: 2f0a0cf8
 314     pdc->pPFFList = NULL;
 315     pdc->flSimulationFlags = 0;
 316     pdc->lEscapement = 0;
 317     pdc->prfnt = NULL;
 318         pdc->dcattr.flFontMapper = 0;
 319         pdc->dcattr.flTextAlign = 0;
 320         pdc->dcattr.lTextAlign = 0;
 321         pdc->dcattr.lTextExtra = 0;
 322         pdc->dcattr.lRelAbs = 1;
 323         pdc->dcattr.lBreakExtra = 0;
 324         pdc->dcattr.cBreak = 0;
 325     pdc->dcattr.hlfntNew = StockObjects[SYSTEM_FONT];
 326 //      pdc->dclevel.pFont = LFONT_ShareLockFont(pdc->dcattr.hlfntNew);
 327
 328     /* Other stuff */
 329     pdc->hdcNext = NULL;
 330     pdc->hdcPrev = NULL;
 331     pdc->ipfdDevMax = 0x0000ffff;
 332     pdc->ulCopyCount = -1;
 333     pdc->ptlDoBanding.x = 0;
 334     pdc->ptlDoBanding.y = 0;
 335         pdc->dclevel.lSaveDepth = 1;
 336         pdc->dclevel.hdcSave = NULL;
 337         pdc->dcattr.iGraphicsMode = GM_COMPATIBLE;
 338         pdc->dcattr.iCS_CP = 0;
 339     pdc->pSurfInfo = NULL;
 340
 341 }
 342
 343 BOOL
 344 INTERNAL_CALL
 345 DC_Cleanup(PVOID ObjectBody)
 346 {
 347     PDC pdc = (PDC)ObjectBody;
 348
 349     /* Free DC_ATTR */
 350     DC_vFreeDcAttr(pdc);
 351
 352     /* Delete saved DCs */
 353     DC_vRestoreDC(pdc, 1);
 354
 355     /* Deselect dc objects */
 356     DC_vSelectSurface(pdc, NULL);
 357     DC_vSelectFillBrush(pdc, NULL);
 358     DC_vSelectLineBrush(pdc, NULL);
 359     DC_vSelectPalette(pdc, NULL);
 360
 361     /* Cleanup the dc brushes */
 362     EBRUSHOBJ_vCleanup(&pdc->eboFill);
 363     EBRUSHOBJ_vCleanup(&pdc->eboLine);
 364     EBRUSHOBJ_vCleanup(&pdc->eboText);
 365     EBRUSHOBJ_vCleanup(&pdc->eboBackground);
 366
 367     /*  Free regions */
 368     if (pdc->rosdc.hClipRgn)
 369         GreDeleteObject(pdc->rosdc.hClipRgn);
 370     if (pdc->prgnVis)
 371         REGION_FreeRgnByHandle(pdc->prgnVis->BaseObject.hHmgr);
 372 ASSERT(pdc->rosdc.hGCClipRgn);
 373     if (pdc->rosdc.hGCClipRgn)
 374         GreDeleteObject(pdc->rosdc.hGCClipRgn);
 375     if (NULL != pdc->rosdc.CombinedClip)
 376         IntEngDeleteClipRegion(pdc->rosdc.CombinedClip);
 377
 378     PATH_Delete(pdc->dclevel.hPath);
 379
 380     if(pdc->dclevel.pSurface)
 381         SURFACE_ShareUnlockSurface(pdc->dclevel.pSurface);
 382
 383     PDEVOBJ_vRelease(pdc->ppdev) ;
 384
 385     return TRUE;
 386 }
 387
 388 BOOL
 389 FASTCALL
 390 DC_SetOwnership(HDC hDC, PEPROCESS Owner)
 391 {
 392     INT Index;
 393     PGDI_TABLE_ENTRY Entry;
 394     PDC pDC;
 395     BOOL ret = FALSE;
 396
 397     /* FIXME: This function has broken error handling */
 398
 399     if (!GDIOBJ_SetOwnership(hDC, Owner))
 400     {
 401         DPRINT1("GDIOBJ_SetOwnership failed\n");
 402         return FALSE;
 403     }
 404
 405     pDC = DC_LockDc(hDC);
 406     if (!pDC)
 407     {
 408         DPRINT1("Could not lock DC\n");
 409         return FALSE;
 410     }
 411
 412     /*
 413        System Regions:
 414           These regions do not use attribute sections and when allocated, use
 415           gdiobj level functions.
 416     */
 417     if (pDC->rosdc.hClipRgn)
 418     {   // FIXME! HAX!!!
 419         Index = GDI_HANDLE_GET_INDEX(pDC->rosdc.hClipRgn);
 420         Entry = &GdiHandleTable->Entries[Index];
 421         if (Entry->UserData) FreeObjectAttr(Entry->UserData);
 422         Entry->UserData = NULL;
 423         //
 424         if (!GDIOBJ_SetOwnership(pDC->rosdc.hClipRgn, Owner)) goto leave;
 425     }
 426     if (pDC->prgnVis)
 427     {   // FIXME! HAX!!!
 428         Index = GDI_HANDLE_GET_INDEX(pDC->prgnVis->BaseObject.hHmgr);
 429         Entry = &GdiHandleTable->Entries[Index];
 430         if (Entry->UserData) FreeObjectAttr(Entry->UserData);
 431         Entry->UserData = NULL;
 432         //
 433         if (!GDIOBJ_SetOwnership(pDC->prgnVis->BaseObject.hHmgr, Owner)) goto leave;
 434     }
 435     if (pDC->rosdc.hGCClipRgn)
 436     {   // FIXME! HAX!!!
 437         Index = GDI_HANDLE_GET_INDEX(pDC->rosdc.hGCClipRgn);
 438         Entry = &GdiHandleTable->Entries[Index];
 439         if (Entry->UserData) FreeObjectAttr(Entry->UserData);
 440         Entry->UserData = NULL;
 441         //
 442         if (!GDIOBJ_SetOwnership(pDC->rosdc.hGCClipRgn, Owner)) goto leave;
 443     }
 444     if (pDC->dclevel.hPath)
 445     {
 446         if (!GDIOBJ_SetOwnership(pDC->dclevel.hPath, Owner)) goto leave;
 447     }
 448     ret = TRUE;
 449
 450 leave:
 451     DC_UnlockDc(pDC);
 452
 453     return ret;
 454 }
 455
 456
 457 int FASTCALL
 458 CLIPPING_UpdateGCRegion(DC* Dc);
 459
 460 static
 461 void
 462 DC_vUpdateDC(PDC pdc)
 463 {
 464     HRGN hVisRgn ;
 465     PPDEVOBJ ppdev = pdc->ppdev ;
 466
 467     pdc->dhpdev = ppdev->dhpdev;
 468
 469     SURFACE_ShareUnlockSurface(pdc->dclevel.pSurface);
 470     pdc->dclevel.pSurface = PDEVOBJ_pSurface(ppdev);
 471
 472     PDEVOBJ_sizl(pdc->ppdev, &pdc->dclevel.sizl);
 473     hVisRgn = NtGdiCreateRectRgn(0, 0, pdc->dclevel.sizl.cx, pdc->dclevel.sizl.cy);
 474     ASSERT(hVisRgn);
 475     GdiSelectVisRgn(pdc->BaseObject.hHmgr, hVisRgn);
 476     GreDeleteObject(hVisRgn);
 477
 478     pdc->flGraphicsCaps = ppdev->devinfo.flGraphicsCaps;
 479     pdc->flGraphicsCaps2 = ppdev->devinfo.flGraphicsCaps2;
 480
 481     /* Mark EBRUSHOBJs as dirty */
 482     pdc->pdcattr->ulDirty_ |= DIRTY_DEFAULT ;
 483 }
 484
 485 /* Prepare a blit for up to 2 DCs */
 486 /* rc1 and rc2 are the rectangles where we want to draw or
 487  * from where we take pixels. */
 488 VOID
 489 FASTCALL
 490 DC_vPrepareDCsForBlit(PDC pdc1,
 491                       RECT rc1,
 492                       PDC pdc2,
 493                       RECT rc2)
 494 {
 495     PDC pdcFirst, pdcSecond;
 496     PRECT prcFirst, prcSecond;
 497     /* Lock them in good order */
 498     if(pdc2)
 499     {
 500         if((ULONG_PTR)pdc1->BaseObject.hHmgr >= (ULONG_PTR)pdc2->BaseObject.hHmgr)
 501         {
 502             pdcFirst = pdc1;
 503             prcFirst = &rc1;
 504             pdcSecond = pdc2;
 505             prcSecond = &rc2;
 506         }
 507         else
 508         {
 509             pdcFirst = pdc2;
 510             prcFirst = &rc2;
 511             pdcSecond = pdc1;
 512             prcSecond = &rc1;
 513         }
 514     }
 515     else
 516     {
 517         pdcFirst = pdc1 ;
 518         prcFirst = &rc1;
 519         pdcSecond = NULL ;
 520     }
 521
 522     if(pdcFirst && pdcFirst->dctype == DCTYPE_DIRECT)
 523     {
 524         EngAcquireSemaphore(pdcFirst->ppdev->hsemDevLock);
 525         MouseSafetyOnDrawStart(pdcFirst->ppdev,
 526                                     prcFirst->left,
 527                                     prcFirst->top,
 528                                     prcFirst->right,
 529                                     prcFirst->bottom) ;
 530         /* Update surface if needed */
 531         if(pdcFirst->ppdev->pSurface != pdcFirst->dclevel.pSurface)
 532         {
 533             DC_vUpdateDC(pdcFirst);
 534         }
 535     }
 536     if(pdcSecond && pdcSecond->dctype == DCTYPE_DIRECT)
 537     {
 538         EngAcquireSemaphore(pdcSecond->ppdev->hsemDevLock);
 539         MouseSafetyOnDrawStart(pdcSecond->ppdev,
 540                                     prcSecond->left,
 541                                     prcSecond->top,
 542                                     prcSecond->right,
 543                                     prcSecond->bottom) ;
 544         /* Update surface if needed */
 545         if(pdcSecond->ppdev->pSurface != pdcSecond->dclevel.pSurface)
 546         {
 547             DC_vUpdateDC(pdcSecond);
 548         }
 549     }
 550 }
 551
 552 /* Finishes a blit for one or two DCs */
 553 VOID
 554 FASTCALL
 555 DC_vFinishBlit(PDC pdc1, PDC pdc2)
 556 {
 557     if(pdc1->dctype == DCTYPE_DIRECT)
 558     {
 559         MouseSafetyOnDrawEnd(pdc1->ppdev);
 560         EngReleaseSemaphore(pdc1->ppdev->hsemDevLock);
 561     }
 562
 563     if(pdc2)
 564     {
 565         if(pdc2->dctype == DCTYPE_DIRECT)
 566         {
 567             MouseSafetyOnDrawEnd(pdc2->ppdev);
 568             EngReleaseSemaphore(pdc2->ppdev->hsemDevLock);
 569         }
 570     }
 571 }
 572
 573 HDC
 574 NTAPI
 575 GreOpenDCW(
 576     PUNICODE_STRING pustrDevice,
 577     DEVMODEW *pdmInit,
 578     PUNICODE_STRING pustrLogAddr,
 579     ULONG iType,
 580     BOOL bDisplay,
 581     HANDLE hspool,
 582     VOID *pDriverInfo2,
 583     VOID *pUMdhpdev)
 584 {
 585     PPDEVOBJ ppdev;
 586     PDC pdc;
 587     HDC hdc;
 588
 589     DPRINT("GreOpenDCW(%S, iType=%ld)\n",
 590            pustrDevice ? pustrDevice->Buffer : NULL, iType);
 591
 592     /* Get a PDEVOBJ for the device */
 593     ppdev = EngpGetPDEV(pustrDevice);
 594     if (!ppdev)
 595     {
 596         DPRINT1("Didn't find a suitable PDEV\n");
 597         return NULL;
 598     }
 599
 600     DPRINT("GreOpenDCW - ppdev = %p\n", ppdev);
 601
 602     pdc = DC_AllocDcWithHandle();
 603     if (!pdc)
 604     {
 605         DPRINT1("Could not Allocate a DC\n");
 606         PDEVOBJ_vRelease(ppdev);
 607         return NULL;
 608     }
 609     hdc = pdc->BaseObject.hHmgr;
 610
 611     /* Lock ppdev and initialize the new DC */
 612     DC_vInitDc(pdc, iType, ppdev);
 613     /* FIXME: HACK! */
 614     DC_InitHack(pdc);
 615
 616     DC_AllocDcAttr(pdc);
 617
 618     DC_UnlockDc(pdc);
 619
 620     DPRINT("returning hdc = %p\n", hdc);
 621
 622     return hdc;
 623 }
 624
 625 HDC
 626 APIENTRY
 627 NtGdiOpenDCW(
 628     PUNICODE_STRING pustrDevice,
 629     DEVMODEW *pdmInit,
 630     PUNICODE_STRING pustrLogAddr,
 631     ULONG iType,
 632     BOOL bDisplay,
 633     HANDLE hspool,
 634     VOID *pDriverInfo2,
 635     VOID *pUMdhpdev)
 636 {
 637     UNICODE_STRING ustrDevice;
 638     WCHAR awcDevice[CCHDEVICENAME];
 639     DEVMODEW dmInit;
 640     PVOID dhpdev;
 641     HDC hdc;
 642
 643     /* Only if a devicename is given, we need any data */
 644     if (pustrDevice)
 645     {
 646         /* Initialize destination string */
 647         RtlInitEmptyUnicodeString(&ustrDevice, awcDevice, sizeof(awcDevice));
 648
 649         _SEH2_TRY
 650         {
 651             /* Probe the UNICODE_STRING and the buffer */
 652             ProbeForRead(pustrDevice, sizeof(UNICODE_STRING), 1);
 653             ProbeForRead(pustrDevice->Buffer, pustrDevice->Length, 1);
 654
 655             /* Copy the string */
 656             RtlCopyUnicodeString(&ustrDevice, pustrDevice);
 657
 658             if (pdmInit)
 659             {
 660                 /* FIXME: could be larger */
 661                 ProbeForRead(pdmInit, sizeof(DEVMODEW), 1);
 662                 RtlCopyMemory(&dmInit, pdmInit, sizeof(DEVMODEW));
 663             }
 664
 665             if (pUMdhpdev)
 666             {
 667                 ProbeForWrite(pUMdhpdev, sizeof(HANDLE), 1);
 668             }
 669         }
 670         _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
 671         {
 672             SetLastNtError(_SEH2_GetExceptionCode());
 673             _SEH2_YIELD(return NULL);
 674         }
 675         _SEH2_END
 676     }
 677     else
 678     {
 679         pdmInit = NULL;
 680         pUMdhpdev = NULL;
 681     }
 682
 683     /* FIXME: HACK! */
 684     if (pustrDevice)
 685     {
 686         UNICODE_STRING ustrDISPLAY = RTL_CONSTANT_STRING(L"DISPLAY");
 687         if (RtlEqualUnicodeString(&ustrDevice, &ustrDISPLAY, TRUE))
 688         {
 689             pustrDevice = NULL;
 690         }
 691     }
 692
 693     /* Call the internal function */
 694     hdc = GreOpenDCW(pustrDevice ? &ustrDevice : NULL,
 695                      pdmInit ? &dmInit : NULL,
 696                      NULL, // fixme pwszLogAddress
 697                      iType,
 698                      bDisplay,
 699                      hspool,
 700                      NULL, //FIXME: pDriverInfo2
 701                      pUMdhpdev ? &dhpdev : NULL);
 702
 703     /* If we got a HDC and a UM dhpdev is requested,... */
 704     if (hdc && pUMdhpdev)
 705     {
 706         /* Copy dhpdev to caller (FIXME: use dhpdev?? */
 707         _SEH2_TRY
 708         {
 709             /* Pointer was already probed */
 710             *(HANDLE*)pUMdhpdev = dhpdev;
 711         }
 712         _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
 713         {
 714             /* Ignore error */
 715         }
 716         _SEH2_END
 717     }
 718
 719     return hdc;
 720 }
 721
 722
 723 HDC
 724 APIENTRY
 725 NtGdiCreateCompatibleDC(HDC hdc)
 726 {
 727     HDC hdcNew;
 728     PPDEVOBJ ppdev;
 729     PDC pdc, pdcNew;
 730
 731     DPRINT("NtGdiCreateCompatibleDC(0x%p)\n", hdc);
 732
 733     /* Did the caller provide a DC? */
 734     if (hdc)
 735     {
 736         /* Yes, try to lock it */
 737         pdc = DC_LockDc(hdc);
 738         if (!pdc)
 739         {
 740             DPRINT1("Could not lock source DC %p\n", hdc);
 741             return NULL;
 742         }
 743
 744         /* Get the pdev from the DC */
 745         ppdev = pdc->ppdev;
 746         InterlockedIncrement(&ppdev->cPdevRefs);
 747
 748         /* Unlock the source DC */
 749         DC_UnlockDc(pdc);
 750     }
 751     else
 752     {
 753         /* No DC given, get default device */
 754         ppdev = EngpGetPDEV(NULL);
 755     }
 756
 757     if (!ppdev)
 758     {
 759         DPRINT1("Didn't find a suitable PDEV\n");
 760         return NULL;
 761     }
 762
 763     /* Allocate a new DC */
 764     pdcNew = DC_AllocDcWithHandle();
 765     if (!pdcNew)
 766     {
 767         DPRINT1("Could not allocate a new DC\n");
 768         PDEVOBJ_vRelease(ppdev);
 769         return NULL;
 770     }
 771     hdcNew = pdcNew->BaseObject.hHmgr;
 772
 773     /* Lock ppdev and initialize the new DC */
 774     DC_vInitDc(pdcNew, DCTYPE_MEMORY, ppdev);
 775     /* FIXME: HACK! */
 776     DC_InitHack(pdcNew);
 777
 778     /* Allocate a dc attribute */
 779     DC_AllocDcAttr(pdcNew);
 780
 781     // HACK!
 782     DC_vSelectSurface(pdcNew, psurfDefaultBitmap);
 783
 784     DC_UnlockDc(pdcNew);
 785
 786     DPRINT("Leave NtGdiCreateCompatibleDC hdcNew = %p\n", hdcNew);
 787
 788     return hdcNew;
 789 }
 790
 791 BOOL
 792 FASTCALL
 793 IntGdiDeleteDC(HDC hDC, BOOL Force)
 794 {
 795     PDC DCToDelete = DC_LockDc(hDC);
 796
 797     if (DCToDelete == NULL)
 798     {
 799         SetLastWin32Error(ERROR_INVALID_HANDLE);
 800         return FALSE;
 801     }
 802
 803     if (!Force)
 804     {
 805         if (DCToDelete->fs & DC_FLAG_PERMANENT)
 806         {
 807             DPRINT1("No! You Naughty Application!\n");
 808             DC_UnlockDc(DCToDelete);
 809             return UserReleaseDC(NULL, hDC, FALSE);
 810         }
 811     }
 812
 813     DC_UnlockDc(DCToDelete);
 814
 815     if (!IsObjectDead(hDC))
 816     {
 817         if (!GDIOBJ_FreeObjByHandle(hDC, GDI_OBJECT_TYPE_DC))
 818         {
 819             DPRINT1("DC_FreeDC failed\n");
 820         }
 821     }
 822     else
 823     {
 824         DPRINT1("Attempted to Delete 0x%x currently being destroyed!!!\n", hDC);
 825     }
 826
 827     return TRUE;
 828 }
 829
 830 BOOL
 831 APIENTRY
 832 NtGdiDeleteObjectApp(HANDLE DCHandle)
 833 {
 834     /* Complete all pending operations */
 835     NtGdiFlushUserBatch();
 836
 837     if (GDI_HANDLE_IS_STOCKOBJ(DCHandle)) return TRUE;
 838
 839     if (GDI_HANDLE_GET_TYPE(DCHandle) != GDI_OBJECT_TYPE_DC)
 840         return GreDeleteObject((HGDIOBJ) DCHandle);
 841
 842     if (IsObjectDead((HGDIOBJ)DCHandle)) return TRUE;
 843
 844     if (!GDIOBJ_OwnedByCurrentProcess(DCHandle))
 845     {
 846         SetLastWin32Error(ERROR_INVALID_HANDLE);
 847         return FALSE;
 848     }
 849
 850     return IntGdiDeleteDC(DCHandle, FALSE);
 851 }
 852
 853 BOOL
 854 FASTCALL
 855 MakeInfoDC(PDC pdc, BOOL bSet)
 856 {
 857     PSURFACE pSurface;
 858     SIZEL sizl;
 859
 860     /* Can not be a display DC. */
 861     if (pdc->fs & DC_FLAG_DISPLAY) return FALSE;
 862     if (bSet)
 863     {
 864         if (pdc->fs & DC_FLAG_TEMPINFODC || pdc->dctype == DC_TYPE_DIRECT)
 865             return FALSE;
 866
 867         pSurface = pdc->dclevel.pSurface;
 868         pdc->fs |= DC_FLAG_TEMPINFODC;
 869         pdc->pSurfInfo = pSurface;
 870         pdc->dctype = DC_TYPE_INFO;
 871         pdc->dclevel.pSurface = NULL;
 872
 873         PDEVOBJ_sizl(pdc->ppdev, &sizl);
 874
 875         if ( sizl.cx == pdc->dclevel.sizl.cx &&
 876              sizl.cy == pdc->dclevel.sizl.cy )
 877             return TRUE;
 878
 879         pdc->dclevel.sizl.cx = sizl.cx;
 880         pdc->dclevel.sizl.cy = sizl.cy;
 881     }
 882     else
 883     {
 884         if (!(pdc->fs & DC_FLAG_TEMPINFODC) || pdc->dctype != DC_TYPE_INFO)
 885             return FALSE;
 886
 887         pSurface = pdc->pSurfInfo;
 888         pdc->fs &= ~DC_FLAG_TEMPINFODC;
 889         pdc->dclevel.pSurface = pSurface;
 890         pdc->dctype = DC_TYPE_DIRECT;
 891         pdc->pSurfInfo = NULL;
 892
 893         if ( !pSurface ||
 894              (pSurface->SurfObj.sizlBitmap.cx == pdc->dclevel.sizl.cx &&
 895               pSurface->SurfObj.sizlBitmap.cy == pdc->dclevel.sizl.cy) )
 896             return TRUE;
 897
 898         pdc->dclevel.sizl.cx = pSurface->SurfObj.sizlBitmap.cx;
 899         pdc->dclevel.sizl.cy = pSurface->SurfObj.sizlBitmap.cy;
 900     }
 901     return IntSetDefaultRegion(pdc);
 902 }
 903
 904 /*
 905 * @implemented
 906 */
 907 BOOL
 908 APIENTRY
 909 NtGdiMakeInfoDC(
 910     IN HDC hdc,
 911     IN BOOL bSet)
 912 {
 913     BOOL Ret;
 914     PDC pdc = DC_LockDc(hdc);
 915     if (pdc)
 916     {
 917         Ret = MakeInfoDC(pdc, bSet);
 918         DC_UnlockDc(pdc);
 919         return Ret;
 920     }
 921     return FALSE;
 922 }
 923
 924
 925 HDC FASTCALL
 926 IntGdiCreateDC(
 927     PUNICODE_STRING Driver,
 928     PUNICODE_STRING pustrDevice,
 929     PVOID pUMdhpdev,
 930     CONST PDEVMODEW pdmInit,
 931     BOOL CreateAsIC)
 932 {
 933     HDC hdc;
 934
 935     hdc = GreOpenDCW(pustrDevice,
 936                      pdmInit,
 937                      NULL,
 938                      CreateAsIC ? DCTYPE_INFO :
 939                           (Driver ? DC_TYPE_DIRECT : DC_TYPE_DIRECT),
 940                      TRUE,
 941                      NULL,
 942                      NULL,
 943                      pUMdhpdev);
 944
 945     return hdc;
 946 }
 947
 948 HDC FASTCALL
 949 IntGdiCreateDisplayDC(HDEV hDev, ULONG DcType, BOOL EmptyDC)
 950 {
 951     HDC hDC;
 952     UNIMPLEMENTED;
 953     ASSERT(FALSE);
 954
 955     if (DcType == DC_TYPE_MEMORY)
 956         hDC = NtGdiCreateCompatibleDC(NULL); // OH~ Yuck! I think I taste vomit in my mouth!
 957     else
 958         hDC = IntGdiCreateDC(NULL, NULL, NULL, NULL, (DcType == DC_TYPE_INFO));
 959
 960     return hDC;
 961 }
 962