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)
15 //FIXME: windows uses 0x0012009f
16 #define DIRTY_DEFAULT DIRTY_CHARSET|DIRTY_BACKGROUND|DIRTY_TEXT|DIRTY_LINE|DIRTY_FILL
18 PSURFACE psurfDefaultBitmap
= NULL
;
19 PBRUSH pbrDefaultBrush
= NULL
;
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}
27 static const FLOATOBJ gef0
= FLOATOBJ_0
;
28 static const FLOATOBJ gef1
= FLOATOBJ_1
;
29 static const FLOATOBJ gef16
= FLOATOBJ_16
;
31 static const MATRIX gmxWorldToDeviceDefault
=
33 FLOATOBJ_16
, FLOATOBJ_0
,
34 FLOATOBJ_0
, FLOATOBJ_16
,
35 FLOATOBJ_0
, FLOATOBJ_0
,
39 static const MATRIX gmxDeviceToWorldDefault
=
41 FLOATOBJ_1_16
, FLOATOBJ_0
,
42 FLOATOBJ_0
, FLOATOBJ_1_16
,
43 FLOATOBJ_0
, FLOATOBJ_0
,
47 static const MATRIX gmxWorldToPageDefault
=
49 FLOATOBJ_1
, FLOATOBJ_0
,
50 FLOATOBJ_0
, FLOATOBJ_1
,
51 FLOATOBJ_0
, FLOATOBJ_0
,
55 // HACK!! Fix XFORMOBJ then use 1:16 / 16:1
56 #define gmxWorldToDeviceDefault gmxWorldToPageDefault
57 #define gmxDeviceToWorldDefault gmxWorldToPageDefault
59 /** Internal functions ********************************************************/
64 psurfDefaultBitmap
= SURFACE_ShareLockSurface(StockObjects
[DEFAULT_BITMAP
]);
65 if (!psurfDefaultBitmap
)
66 return STATUS_UNSUCCESSFUL
;
68 pbrDefaultBrush
= BRUSH_ShareLockBrush(StockObjects
[BLACK_BRUSH
]);
70 return STATUS_UNSUCCESSFUL
;
72 return STATUS_SUCCESS
;
78 DC_AllocDcWithHandle()
81 pdc
= (PDC
)GDIOBJ_AllocObjWithHandle(GDILoObjType_LO_DC_TYPE
);
83 pdc
->pdcattr
= &pdc
->dcattr
;
94 TextIntRealizeFont(pdc
->pdcattr
->hlfntNew
,NULL
);
95 pdc
->pdcattr
->iCS_CP
= ftGdiGetTextCharsetInfo(pdc
,NULL
,0);
97 /* This should never fail */
98 ASSERT(pdc
->dclevel
.ppal
);
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
);
106 GdiSelectVisRgn(pdc
->BaseObject
.hHmgr
, hVisRgn
);
107 GreDeleteObject(hVisRgn
);
108 ASSERT(pdc
->prgnVis
);
118 /* Setup some basic fields */
119 pdc
->dctype
= dctype
;
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
;
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
;
134 /* Setup the DC size */
135 if (dctype
== DCTYPE_MEMORY
)
137 /* Memory DCs have a 1 x 1 bitmap by default */
138 pdc
->dclevel
.sizl
.cx
= 1;
139 pdc
->dclevel
.sizl
.cy
= 1;
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
;
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
;
154 if (dctype
== DCTYPE_DIRECT
)
156 /* Direct DCs get the surface from the PDEV */
157 pdc
->dclevel
.pSurface
= PDEVOBJ_pSurface(ppdev
);
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
;
170 pdc
->fs
|= DC_SYNCHRONIZEACCESS
| DC_ACCUM_APP
| DC_PERMANANT
| DC_DISPLAY
;
174 /* Non-direct DCs don't have a surface by default */
175 pdc
->dclevel
.pSurface
= NULL
;
177 // FIXME: HACK, because our code expects a surface
178 pdc
->dclevel
.pSurface
= SURFACE_ShareLockSurface(StockObjects
[DEFAULT_BITMAP
]);
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
;
189 // pdc->dcattr.VisRectRegion:
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
;
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;
237 pdc
->prgnVis
= NULL
; // FIXME
241 pdc
->dclevel
.hpal
= StockObjects
[DEFAULT_PALETTE
];
242 pdc
->dclevel
.ppal
= PALETTE_ShareLockPalette(pdc
->dclevel
.hpal
);
245 pdc
->dclevel
.hPath
= NULL
;
246 pdc
->dclevel
.flPath
= 0;
247 // pdc->dclevel.lapath:
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);
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
;
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
);
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;
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;
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
;
304 /* Setup font data */
305 pdc
->hlfntCur
= NULL
; // FIXME: 2f0a0cf8
306 pdc
->pPFFList
= NULL
;
307 pdc
->flSimulationFlags
= 0;
308 pdc
->lEscapement
= 0;
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);
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
;
337 DC_Cleanup(PVOID ObjectBody
)
339 PDC pdc
= (PDC
)ObjectBody
;
344 /* Delete saved DCs */
345 DC_vRestoreDC(pdc
, 1);
347 /* Deselect dc objects */
348 DC_vSelectSurface(pdc
, NULL
);
349 DC_vSelectFillBrush(pdc
, NULL
);
350 DC_vSelectLineBrush(pdc
, NULL
);
351 DC_vSelectPalette(pdc
, NULL
);
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
);
360 if (pdc
->rosdc
.hClipRgn
)
361 GreDeleteObject(pdc
->rosdc
.hClipRgn
);
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
);
369 PATH_Delete(pdc
->dclevel
.hPath
);
371 if(pdc
->dclevel
.pSurface
)
372 SURFACE_ShareUnlockSurface(pdc
->dclevel
.pSurface
);
374 PDEVOBJ_vRelease(pdc
->ppdev
) ;
381 DC_SetOwnership(HDC hDC
, PEPROCESS Owner
)
384 PGDI_TABLE_ENTRY Entry
;
388 if (!GDIOBJ_SetOwnership(hDC
, Owner
))
390 DPRINT1("GDIOBJ_SetOwnership failed\n");
394 pDC
= DC_LockDc(hDC
);
397 DPRINT1("Could not lock DC\n");
403 These regions do not use attribute sections and when allocated, use
404 gdiobj level functions.
406 if (pDC
->rosdc
.hClipRgn
)
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
;
413 if (!GDIOBJ_SetOwnership(pDC
->rosdc
.hClipRgn
, Owner
)) goto leave
;
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
;
422 if (!GDIOBJ_SetOwnership(pDC
->prgnVis
->BaseObject
.hHmgr
, Owner
)) goto leave
;
424 if (pDC
->rosdc
.hGCClipRgn
)
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
;
431 if (!GDIOBJ_SetOwnership(pDC
->rosdc
.hGCClipRgn
, Owner
)) goto leave
;
433 if (pDC
->dclevel
.hPath
)
435 if (!GDIOBJ_SetOwnership(pDC
->dclevel
.hPath
, Owner
)) goto leave
;
447 CLIPPING_UpdateGCRegion(DC
* Dc
);
451 DC_vUpdateDC(PDC pdc
)
454 PPDEVOBJ ppdev
= pdc
->ppdev
;
456 pdc
->dhpdev
= ppdev
->dhpdev
;
458 SURFACE_ShareUnlockSurface(pdc
->dclevel
.pSurface
);
459 pdc
->dclevel
.pSurface
= PDEVOBJ_pSurface(ppdev
);
461 PDEVOBJ_sizl(pdc
->ppdev
, &pdc
->dclevel
.sizl
);
462 hVisRgn
= NtGdiCreateRectRgn(0, 0, pdc
->dclevel
.sizl
.cx
, pdc
->dclevel
.sizl
.cy
);
464 GdiSelectVisRgn(pdc
->BaseObject
.hHmgr
, hVisRgn
);
465 GreDeleteObject(hVisRgn
);
467 pdc
->flGraphicsCaps
= ppdev
->devinfo
.flGraphicsCaps
;
468 pdc
->flGraphicsCaps2
= ppdev
->devinfo
.flGraphicsCaps2
;
470 /* Mark EBRUSHOBJs as dirty */
471 pdc
->pdcattr
->ulDirty_
|= DIRTY_DEFAULT
;
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. */
479 DC_vPrepareDCsForBlit(PDC pdc1
,
484 PDC pdcFirst
, pdcSecond
;
485 PRECT prcFirst
, prcSecond
;
486 /* Lock them in good order */
489 if((ULONG_PTR
)pdc1
->ppdev
->hsemDevLock
>= (ULONG_PTR
)pdc2
->ppdev
->hsemDevLock
)
511 if(pdcFirst
&& pdcFirst
->dctype
== DCTYPE_DIRECT
)
513 EngAcquireSemaphore(pdcFirst
->ppdev
->hsemDevLock
);
514 MouseSafetyOnDrawStart(pdcFirst
->ppdev
,
519 /* Update surface if needed */
520 if(pdcFirst
->ppdev
->pSurface
!= pdcFirst
->dclevel
.pSurface
)
522 DC_vUpdateDC(pdcFirst
);
525 if(pdcSecond
&& pdcSecond
->dctype
== DCTYPE_DIRECT
)
527 EngAcquireSemaphore(pdcSecond
->ppdev
->hsemDevLock
);
528 MouseSafetyOnDrawStart(pdcSecond
->ppdev
,
533 /* Update surface if needed */
534 if(pdcSecond
->ppdev
->pSurface
!= pdcSecond
->dclevel
.pSurface
)
536 DC_vUpdateDC(pdcSecond
);
541 /* Finishes a blit for one or two DCs */
544 DC_vFinishBlit(PDC pdc1
, PDC pdc2
)
546 if(pdc1
->dctype
== DCTYPE_DIRECT
)
548 MouseSafetyOnDrawEnd(pdc1
->ppdev
);
549 EngReleaseSemaphore(pdc1
->ppdev
->hsemDevLock
);
554 if(pdc2
->dctype
== DCTYPE_DIRECT
)
556 MouseSafetyOnDrawEnd(pdc2
->ppdev
);
557 EngReleaseSemaphore(pdc2
->ppdev
->hsemDevLock
);
565 PUNICODE_STRING pustrDevice
,
567 PUNICODE_STRING pustrLogAddr
,
578 DPRINT("GreOpenDCW(%S, iType=%ld)\n",
579 pustrDevice
? pustrDevice
->Buffer
: NULL
, iType
);
581 /* Get a PDEVOBJ for the device */
582 ppdev
= EngpGetPDEV(pustrDevice
);
585 DPRINT1("Didn't find a suitable PDEV\n");
589 DPRINT("GreOpenDCW - ppdev = %p\n", ppdev
);
591 pdc
= DC_AllocDcWithHandle();
594 DPRINT1("Could not Allocate a DC\n");
595 PDEVOBJ_vRelease(ppdev
);
598 hdc
= pdc
->BaseObject
.hHmgr
;
600 /* Lock ppdev and initialize the new DC */
601 DC_vInitDc(pdc
, iType
, ppdev
);
609 DPRINT("returning hdc = %p\n", hdc
);
617 PUNICODE_STRING pustrDevice
,
619 PUNICODE_STRING pustrLogAddr
,
626 UNICODE_STRING ustrDevice
;
627 WCHAR awcDevice
[CCHDEVICENAME
];
632 /* Only if a devicename is given, we need any data */
635 /* Initialize destination string */
636 RtlInitEmptyUnicodeString(&ustrDevice
, awcDevice
, sizeof(awcDevice
));
640 /* Probe the UNICODE_STRING and the buffer */
641 ProbeForRead(pustrDevice
, sizeof(UNICODE_STRING
), 1);
642 ProbeForRead(pustrDevice
->Buffer
, pustrDevice
->Length
, 1);
644 /* Copy the string */
645 RtlCopyUnicodeString(&ustrDevice
, pustrDevice
);
649 /* FIXME: could be larger */
650 ProbeForRead(pdmInit
, sizeof(DEVMODEW
), 1);
651 RtlCopyMemory(&dmInit
, pdmInit
, sizeof(DEVMODEW
));
656 ProbeForWrite(pUMdhpdev
, sizeof(HANDLE
), 1);
659 _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER
)
661 SetLastNtError(_SEH2_GetExceptionCode());
662 _SEH2_YIELD(return NULL
);
675 UNICODE_STRING ustrDISPLAY
= RTL_CONSTANT_STRING(L
"DISPLAY");
676 if (RtlEqualUnicodeString(&ustrDevice
, &ustrDISPLAY
, TRUE
))
682 /* Call the internal function */
683 hdc
= GreOpenDCW(pustrDevice
? &ustrDevice
: NULL
,
684 pdmInit
? &dmInit
: NULL
,
685 NULL
, // fixme pwszLogAddress
689 NULL
, //FIXME: pDriverInfo2
690 pUMdhpdev
? &dhpdev
: NULL
);
692 /* If we got a HDC and a UM dhpdev is requested,... */
693 if (hdc
&& pUMdhpdev
)
695 /* Copy dhpdev to caller (FIXME: use dhpdev?? */
698 /* Pointer was already probed */
699 *(HANDLE
*)pUMdhpdev
= dhpdev
;
701 _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER
)
714 NtGdiCreateCompatibleDC(HDC hdc
)
720 DPRINT("NtGdiCreateCompatibleDC(0x%p)\n", hdc
);
722 /* Did the caller provide a DC? */
725 /* Yes, try to lock it */
726 pdc
= DC_LockDc(hdc
);
729 DPRINT1("Could not lock source DC %p\n", hdc
);
733 /* Get the pdev from the DC */
735 InterlockedIncrement(&ppdev
->cPdevRefs
);
737 /* Unlock the source DC */
742 /* No DC given, get default device */
743 ppdev
= EngpGetPDEV(NULL
);
748 DPRINT1("Didn't find a suitable PDEV\n");
752 /* Allocate a new DC */
753 pdcNew
= DC_AllocDcWithHandle();
756 DPRINT1("Could not allocate a new DC\n");
757 PDEVOBJ_vRelease(ppdev
);
760 hdcNew
= pdcNew
->BaseObject
.hHmgr
;
762 /* Lock ppdev and initialize the new DC */
763 DC_vInitDc(pdcNew
, DCTYPE_MEMORY
, ppdev
);
767 /* Allocate a dc attribute */
768 DC_AllocDcAttr(pdcNew
);
771 DC_vSelectSurface(pdcNew
, psurfDefaultBitmap
);
775 DPRINT("Leave NtGdiCreateCompatibleDC hdcNew = %p\n", hdcNew
);
782 IntGdiDeleteDC(HDC hDC
, BOOL Force
)
784 PDC DCToDelete
= DC_LockDc(hDC
);
786 if (DCToDelete
== NULL
)
788 SetLastWin32Error(ERROR_INVALID_HANDLE
);
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
)
800 DC_UnlockDc(DCToDelete
);
801 if(UserReleaseDC(NULL
, hDC
, FALSE
))
803 /* ReactOs feature : call UserReleaseDC
804 * I don't think windows does it.
805 * Still, complain, no one should ever call DeleteDC
807 DPRINT1("No, you naughty application!\n");
812 /* This is not a window owned DC.
813 * Force its deletion */
814 return IntGdiDeleteDC(hDC
, TRUE
);
819 DC_UnlockDc(DCToDelete
);
821 if (!IsObjectDead(hDC
))
823 if (!GDIOBJ_FreeObjByHandle(hDC
, GDI_OBJECT_TYPE_DC
))
825 DPRINT1("DC_FreeDC failed\n");
830 DPRINT1("Attempted to Delete 0x%x currently being destroyed!!!\n", hDC
);
838 NtGdiDeleteObjectApp(HANDLE DCHandle
)
840 /* Complete all pending operations */
841 NtGdiFlushUserBatch();
843 if (GDI_HANDLE_IS_STOCKOBJ(DCHandle
)) return TRUE
;
845 if (GDI_HANDLE_GET_TYPE(DCHandle
) != GDI_OBJECT_TYPE_DC
)
846 return GreDeleteObject((HGDIOBJ
) DCHandle
);
848 if (IsObjectDead((HGDIOBJ
)DCHandle
)) return TRUE
;
850 if (!GDIOBJ_OwnedByCurrentProcess(DCHandle
))
852 SetLastWin32Error(ERROR_INVALID_HANDLE
);
856 return IntGdiDeleteDC(DCHandle
, FALSE
);
861 MakeInfoDC(PDC pdc
, BOOL bSet
)
866 /* Can not be a display DC. */
867 if (pdc
->fs
& DC_FLAG_DISPLAY
) return FALSE
;
870 if (pdc
->fs
& DC_FLAG_TEMPINFODC
|| pdc
->dctype
== DC_TYPE_DIRECT
)
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
;
879 PDEVOBJ_sizl(pdc
->ppdev
, &sizl
);
881 if ( sizl
.cx
== pdc
->dclevel
.sizl
.cx
&&
882 sizl
.cy
== pdc
->dclevel
.sizl
.cy
)
885 pdc
->dclevel
.sizl
.cx
= sizl
.cx
;
886 pdc
->dclevel
.sizl
.cy
= sizl
.cy
;
890 if (!(pdc
->fs
& DC_FLAG_TEMPINFODC
) || pdc
->dctype
!= DC_TYPE_INFO
)
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
;
900 (pSurface
->SurfObj
.sizlBitmap
.cx
== pdc
->dclevel
.sizl
.cx
&&
901 pSurface
->SurfObj
.sizlBitmap
.cy
== pdc
->dclevel
.sizl
.cy
) )
904 pdc
->dclevel
.sizl
.cx
= pSurface
->SurfObj
.sizlBitmap
.cx
;
905 pdc
->dclevel
.sizl
.cy
= pSurface
->SurfObj
.sizlBitmap
.cy
;
907 return IntSetDefaultRegion(pdc
);
920 PDC pdc
= DC_LockDc(hdc
);
923 Ret
= MakeInfoDC(pdc
, bSet
);
933 PUNICODE_STRING Driver
,
934 PUNICODE_STRING pustrDevice
,
936 CONST PDEVMODEW pdmInit
,
941 hdc
= GreOpenDCW(pustrDevice
,
944 CreateAsIC
? DCTYPE_INFO
:
945 (Driver
? DC_TYPE_DIRECT
: DC_TYPE_DIRECT
),
955 IntGdiCreateDisplayDC(HDEV hDev
, ULONG DcType
, BOOL EmptyDC
)
961 if (DcType
== DC_TYPE_MEMORY
)
962 hDC
= NtGdiCreateCompatibleDC(NULL
); // OH~ Yuck! I think I taste vomit in my mouth!
964 hDC
= IntGdiCreateDC(NULL
, NULL
, NULL
, NULL
, (DcType
== DC_TYPE_INFO
));