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 ********************************************************/
66 psurfDefaultBitmap
= SURFACE_ShareLockSurface(StockObjects
[DEFAULT_BITMAP
]);
67 if (!psurfDefaultBitmap
)
68 return STATUS_UNSUCCESSFUL
;
70 pbrDefaultBrush
= BRUSH_ShareLockBrush(StockObjects
[BLACK_BRUSH
]);
72 return STATUS_UNSUCCESSFUL
;
74 return STATUS_SUCCESS
;
80 DC_AllocDcWithHandle()
84 pdc
= (PDC
)GDIOBJ_AllocateObject(GDIObjType_DC_TYPE
,
89 DPRINT1("Could not allocate a DC.\n");
93 if (!GDIOBJ_hInsertObject(&pdc
->BaseObject
, GDI_OBJ_HMGR_POWNED
))
95 DPRINT1("Could not insert DC into handle table.\n");
96 GDIOBJ_vFreeObject(&pdc
->BaseObject
);
100 pdc
->pdcattr
= &pdc
->dcattr
;
109 TextIntRealizeFont(pdc
->pdcattr
->hlfntNew
,NULL
);
110 pdc
->pdcattr
->iCS_CP
= ftGdiGetTextCharsetInfo(pdc
,NULL
,0);
112 /* This should never fail */
113 ASSERT(pdc
->dclevel
.ppal
);
116 pdc
->rosdc
.hClipRgn
= NULL
;
117 pdc
->rosdc
.hGCClipRgn
= NULL
;
127 /* Setup some basic fields */
128 pdc
->dctype
= dctype
;
130 pdc
->dhpdev
= ppdev
->dhpdev
;
131 pdc
->hsem
= ppdev
->hsemDevLock
;
132 pdc
->flGraphicsCaps
= ppdev
->devinfo
.flGraphicsCaps
;
133 pdc
->flGraphicsCaps2
= ppdev
->devinfo
.flGraphicsCaps2
;
134 pdc
->fs
= DC_DIRTY_RAO
;
136 /* Setup dc attribute */
137 pdc
->pdcattr
= &pdc
->dcattr
;
138 pdc
->dcattr
.pvLDC
= NULL
;
139 pdc
->dcattr
.ulDirty_
= DIRTY_DEFAULT
;
140 if (ppdev
== gppdevPrimary
)
141 pdc
->dcattr
.ulDirty_
|= DC_PRIMARY_DISPLAY
;
143 /* Setup the DC size */
144 if (dctype
== DCTYPE_MEMORY
)
146 /* Memory DCs have a 1 x 1 bitmap by default */
147 pdc
->dclevel
.sizl
.cx
= 1;
148 pdc
->dclevel
.sizl
.cy
= 1;
152 /* Other DC's are as big as the related PDEV */
153 pdc
->dclevel
.sizl
.cx
= ppdev
->gdiinfo
.ulHorzRes
;
154 pdc
->dclevel
.sizl
.cy
= ppdev
->gdiinfo
.ulVertRes
;
157 /* Setup Window rect based on DC size */
158 pdc
->erclWindow
.left
= 0;
159 pdc
->erclWindow
.top
= 0;
160 pdc
->erclWindow
.right
= pdc
->dclevel
.sizl
.cx
;
161 pdc
->erclWindow
.bottom
= pdc
->dclevel
.sizl
.cy
;
163 if (dctype
== DCTYPE_DIRECT
)
165 /* Direct DCs get the surface from the PDEV */
166 pdc
->dclevel
.pSurface
= PDEVOBJ_pSurface(ppdev
);
168 pdc
->erclBounds
.left
= 0x7fffffff;
169 pdc
->erclBounds
.top
= 0x7fffffff;
170 pdc
->erclBounds
.right
= 0x80000000;
171 pdc
->erclBounds
.bottom
= 0x80000000;
172 pdc
->erclBoundsApp
.left
= 0xffffffff;
173 pdc
->erclBoundsApp
.top
= 0xfffffffc;
174 pdc
->erclBoundsApp
.right
= 0x00007ffc; // FIXME
175 pdc
->erclBoundsApp
.bottom
= 0x00000333; // FIXME
176 pdc
->erclClip
= pdc
->erclBounds
;
179 pdc
->fs
|= DC_SYNCHRONIZEACCESS
| DC_ACCUM_APP
| DC_PERMANANT
| DC_DISPLAY
;
183 /* Non-direct DCs don't have a surface by default */
184 pdc
->dclevel
.pSurface
= NULL
;
186 // FIXME: HACK, because our code expects a surface
187 pdc
->dclevel
.pSurface
= SURFACE_ShareLockSurface(StockObjects
[DEFAULT_BITMAP
]);
189 pdc
->erclBounds
.left
= 0;
190 pdc
->erclBounds
.top
= 0;
191 pdc
->erclBounds
.right
= 0;
192 pdc
->erclBounds
.bottom
= 0;
193 pdc
->erclBoundsApp
= pdc
->erclBounds
;
194 pdc
->erclClip
= pdc
->erclWindow
;
198 // pdc->dcattr.VisRectRegion:
200 /* Setup coordinate transformation data */
201 pdc
->dclevel
.mxWorldToDevice
= gmxWorldToDeviceDefault
;
202 pdc
->dclevel
.mxDeviceToWorld
= gmxDeviceToWorldDefault
;
203 pdc
->dclevel
.mxWorldToPage
= gmxWorldToPageDefault
;
204 pdc
->dclevel
.efM11PtoD
= gef16
;
205 pdc
->dclevel
.efM22PtoD
= gef16
;
206 pdc
->dclevel
.efDxPtoD
= gef0
;
207 pdc
->dclevel
.efDyPtoD
= gef0
;
208 pdc
->dclevel
.efM11_TWIPS
= gef0
;
209 pdc
->dclevel
.efM22_TWIPS
= gef0
;
210 pdc
->dclevel
.efPr11
= gef0
;
211 pdc
->dclevel
.efPr22
= gef0
;
212 pdc
->dcattr
.mxWorldToDevice
= pdc
->dclevel
.mxWorldToDevice
;
213 pdc
->dcattr
.mxDeviceToWorld
= pdc
->dclevel
.mxDeviceToWorld
;
214 pdc
->dcattr
.mxWorldToPage
= pdc
->dclevel
.mxWorldToPage
;
215 pdc
->dcattr
.efM11PtoD
= pdc
->dclevel
.efM11PtoD
;
216 pdc
->dcattr
.efM22PtoD
= pdc
->dclevel
.efM22PtoD
;
217 pdc
->dcattr
.efDxPtoD
= pdc
->dclevel
.efDxPtoD
;
218 pdc
->dcattr
.efDyPtoD
= pdc
->dclevel
.efDyPtoD
;
219 pdc
->dcattr
.iMapMode
= MM_TEXT
;
220 pdc
->dcattr
.dwLayout
= 0;
221 pdc
->dcattr
.flXform
= PAGE_TO_DEVICE_SCALE_IDENTITY
|
222 PAGE_TO_DEVICE_IDENTITY
|
223 WORLD_TO_PAGE_IDENTITY
;
225 /* Setup more coordinates */
226 pdc
->ptlDCOrig
.x
= 0;
227 pdc
->ptlDCOrig
.y
= 0;
228 pdc
->dcattr
.lWindowOrgx
= 0;
229 pdc
->dcattr
.ptlWindowOrg
.x
= 0;
230 pdc
->dcattr
.ptlWindowOrg
.y
= 0;
231 pdc
->dcattr
.szlWindowExt
.cx
= 1;
232 pdc
->dcattr
.szlWindowExt
.cy
= 1;
233 pdc
->dcattr
.ptlViewportOrg
.x
= 0;
234 pdc
->dcattr
.ptlViewportOrg
.y
= 0;
235 pdc
->dcattr
.szlViewportExt
.cx
= 1;
236 pdc
->dcattr
.szlViewportExt
.cy
= 1;
237 pdc
->dcattr
.szlVirtualDevicePixel
.cx
= ppdev
->gdiinfo
.ulHorzRes
;
238 pdc
->dcattr
.szlVirtualDevicePixel
.cy
= ppdev
->gdiinfo
.ulVertRes
;
239 pdc
->dcattr
.szlVirtualDeviceMm
.cx
= ppdev
->gdiinfo
.ulHorzSize
;
240 pdc
->dcattr
.szlVirtualDeviceMm
.cy
= ppdev
->gdiinfo
.ulVertSize
;
241 pdc
->dcattr
.szlVirtualDeviceSize
.cx
= 0;
242 pdc
->dcattr
.szlVirtualDeviceSize
.cy
= 0;
247 /* Allocate a Vis region */
248 pdc
->prgnVis
= IntSysCreateRectpRgn(0, 0, pdc
->dclevel
.sizl
.cx
, pdc
->dclevel
.sizl
.cy
);
249 ASSERT(pdc
->prgnVis
);
252 pdc
->dclevel
.hpal
= StockObjects
[DEFAULT_PALETTE
];
253 pdc
->dclevel
.ppal
= PALETTE_ShareLockPalette(pdc
->dclevel
.hpal
);
256 pdc
->dclevel
.hPath
= NULL
;
257 pdc
->dclevel
.flPath
= 0;
258 // pdc->dclevel.lapath:
261 pdc
->dcattr
.crBackgroundClr
= RGB(0xff, 0xff, 0xff);
262 pdc
->dcattr
.ulBackgroundClr
= RGB(0xff, 0xff, 0xff);
263 pdc
->dcattr
.crForegroundClr
= RGB(0, 0, 0);
264 pdc
->dcattr
.ulForegroundClr
= RGB(0, 0, 0);
265 pdc
->dcattr
.crBrushClr
= RGB(0xff, 0xff, 0xff);
266 pdc
->dcattr
.ulBrushClr
= RGB(0xff, 0xff, 0xff);
267 pdc
->dcattr
.crPenClr
= RGB(0, 0, 0);
268 pdc
->dcattr
.ulPenClr
= RGB(0, 0, 0);
270 /* Select the default fill and line brush */
271 pdc
->dcattr
.hbrush
= StockObjects
[WHITE_BRUSH
];
272 pdc
->dcattr
.hpen
= StockObjects
[BLACK_PEN
];
273 pdc
->dclevel
.pbrFill
= BRUSH_ShareLockBrush(pdc
->pdcattr
->hbrush
);
274 pdc
->dclevel
.pbrLine
= PEN_ShareLockPen(pdc
->pdcattr
->hpen
);
275 pdc
->dclevel
.ptlBrushOrigin
.x
= 0;
276 pdc
->dclevel
.ptlBrushOrigin
.y
= 0;
277 pdc
->dcattr
.ptlBrushOrigin
= pdc
->dclevel
.ptlBrushOrigin
;
279 /* Initialize EBRUSHOBJs */
280 EBRUSHOBJ_vInit(&pdc
->eboFill
, pdc
->dclevel
.pbrFill
, pdc
);
281 EBRUSHOBJ_vInit(&pdc
->eboLine
, pdc
->dclevel
.pbrLine
, pdc
);
282 EBRUSHOBJ_vInit(&pdc
->eboText
, pbrDefaultBrush
, pdc
);
283 EBRUSHOBJ_vInit(&pdc
->eboBackground
, pbrDefaultBrush
, pdc
);
285 /* Setup fill data */
286 pdc
->dcattr
.jROP2
= R2_COPYPEN
;
287 pdc
->dcattr
.jBkMode
= 2;
288 pdc
->dcattr
.lBkMode
= 2;
289 pdc
->dcattr
.jFillMode
= ALTERNATE
;
290 pdc
->dcattr
.lFillMode
= 1;
291 pdc
->dcattr
.jStretchBltMode
= 1;
292 pdc
->dcattr
.lStretchBltMode
= 1;
293 pdc
->ptlFillOrigin
.x
= 0;
294 pdc
->ptlFillOrigin
.y
= 0;
296 /* Setup drawing position */
297 pdc
->dcattr
.ptlCurrent
.x
= 0;
298 pdc
->dcattr
.ptlCurrent
.y
= 0;
299 pdc
->dcattr
.ptfxCurrent
.x
= 0;
300 pdc
->dcattr
.ptfxCurrent
.y
= 0;
303 pdc
->dclevel
.lIcmMode
= 0;
304 pdc
->dcattr
.lIcmMode
= 0;
305 pdc
->dcattr
.hcmXform
= NULL
;
306 pdc
->dcattr
.flIcmFlags
= 0;
307 pdc
->dcattr
.IcmBrushColor
= CLR_INVALID
;
308 pdc
->dcattr
.IcmPenColor
= CLR_INVALID
;
309 pdc
->dcattr
.pvLIcm
= NULL
;
310 pdc
->dcattr
.hColorSpace
= NULL
; // FIXME: 0189001f
311 pdc
->dclevel
.pColorSpace
= NULL
; // FIXME
312 pdc
->pClrxFormLnk
= NULL
;
315 /* Setup font data */
316 pdc
->hlfntCur
= NULL
; // FIXME: 2f0a0cf8
317 pdc
->pPFFList
= NULL
;
318 pdc
->flSimulationFlags
= 0;
319 pdc
->lEscapement
= 0;
321 pdc
->dcattr
.flFontMapper
= 0;
322 pdc
->dcattr
.flTextAlign
= 0;
323 pdc
->dcattr
.lTextAlign
= 0;
324 pdc
->dcattr
.lTextExtra
= 0;
325 pdc
->dcattr
.lRelAbs
= 1;
326 pdc
->dcattr
.lBreakExtra
= 0;
327 pdc
->dcattr
.cBreak
= 0;
328 pdc
->dcattr
.hlfntNew
= StockObjects
[SYSTEM_FONT
];
329 // pdc->dclevel.pFont = LFONT_ShareLockFont(pdc->dcattr.hlfntNew);
334 pdc
->ipfdDevMax
= 0x0000ffff;
335 pdc
->ulCopyCount
= -1;
336 pdc
->ptlDoBanding
.x
= 0;
337 pdc
->ptlDoBanding
.y
= 0;
338 pdc
->dclevel
.lSaveDepth
= 1;
339 pdc
->dclevel
.hdcSave
= NULL
;
340 pdc
->dcattr
.iGraphicsMode
= GM_COMPATIBLE
;
341 pdc
->dcattr
.iCS_CP
= 0;
342 pdc
->pSurfInfo
= NULL
;
348 DC_Cleanup(PVOID ObjectBody
)
350 PDC pdc
= (PDC
)ObjectBody
;
355 /* Delete saved DCs */
356 DC_vRestoreDC(pdc
, 1);
358 /* Deselect dc objects */
359 DC_vSelectSurface(pdc
, NULL
);
360 DC_vSelectFillBrush(pdc
, NULL
);
361 DC_vSelectLineBrush(pdc
, NULL
);
362 DC_vSelectPalette(pdc
, NULL
);
364 /* Cleanup the dc brushes */
365 EBRUSHOBJ_vCleanup(&pdc
->eboFill
);
366 EBRUSHOBJ_vCleanup(&pdc
->eboLine
);
367 EBRUSHOBJ_vCleanup(&pdc
->eboText
);
368 EBRUSHOBJ_vCleanup(&pdc
->eboBackground
);
371 if (pdc
->rosdc
.hClipRgn
)
372 GreDeleteObject(pdc
->rosdc
.hClipRgn
);
375 REGION_Delete(pdc
->prgnVis
);
377 if (pdc
->rosdc
.hGCClipRgn
)
379 GreDeleteObject(pdc
->rosdc
.hGCClipRgn
);
381 if (NULL
!= pdc
->rosdc
.CombinedClip
)
382 IntEngDeleteClipRegion(pdc
->rosdc
.CombinedClip
);
384 PATH_Delete(pdc
->dclevel
.hPath
);
386 if(pdc
->dclevel
.pSurface
)
387 SURFACE_ShareUnlockSurface(pdc
->dclevel
.pSurface
);
389 PDEVOBJ_vRelease(pdc
->ppdev
) ;
396 DC_vSetOwner(PDC pdc
, ULONG ulOwner
)
399 if (pdc
->rosdc
.hClipRgn
)
401 IntGdiSetRegionOwner(pdc
->rosdc
.hClipRgn
, ulOwner
);
404 if (pdc
->rosdc
.hGCClipRgn
)
406 IntGdiSetRegionOwner(pdc
->rosdc
.hGCClipRgn
, ulOwner
);
409 if (pdc
->dclevel
.hPath
)
411 GreSetObjectOwner(pdc
->dclevel
.hPath
, ulOwner
);
414 IntGdiSetBrushOwner(pdc
->dclevel
.pbrFill
, ulOwner
);
415 IntGdiSetBrushOwner(pdc
->dclevel
.pbrLine
, ulOwner
);
417 /* Allocate or free DC attribute */
418 if (ulOwner
== GDI_OBJ_HMGR_PUBLIC
|| ulOwner
== GDI_OBJ_HMGR_NONE
)
420 if (pdc
->pdcattr
!= &pdc
->dcattr
)
423 else if (ulOwner
== GDI_OBJ_HMGR_POWNED
)
425 if (pdc
->pdcattr
== &pdc
->dcattr
)
426 DC_bAllocDcAttr(pdc
);
429 /* Set the DC's ownership */
430 GDIOBJ_vSetObjectOwner(&pdc
->BaseObject
, ulOwner
);
435 GreSetDCOwner(HDC hdc
, ULONG ulOwner
)
439 pdc
= DC_LockDc(hdc
);
442 DPRINT1("GreSetDCOwner: Could not lock DC\n");
446 /* Call the internal DC function */
447 DC_vSetOwner(pdc
, ulOwner
);
454 CLIPPING_UpdateGCRegion(DC
* Dc
);
458 DC_vUpdateDC(PDC pdc
)
461 PPDEVOBJ ppdev
= pdc
->ppdev
;
463 pdc
->dhpdev
= ppdev
->dhpdev
;
465 SURFACE_ShareUnlockSurface(pdc
->dclevel
.pSurface
);
466 pdc
->dclevel
.pSurface
= PDEVOBJ_pSurface(ppdev
);
468 PDEVOBJ_sizl(pdc
->ppdev
, &pdc
->dclevel
.sizl
);
469 hVisRgn
= NtGdiCreateRectRgn(0, 0, pdc
->dclevel
.sizl
.cx
, pdc
->dclevel
.sizl
.cy
);
471 GdiSelectVisRgn(pdc
->BaseObject
.hHmgr
, hVisRgn
);
472 GreDeleteObject(hVisRgn
);
474 pdc
->flGraphicsCaps
= ppdev
->devinfo
.flGraphicsCaps
;
475 pdc
->flGraphicsCaps2
= ppdev
->devinfo
.flGraphicsCaps2
;
477 /* Mark EBRUSHOBJs as dirty */
478 pdc
->pdcattr
->ulDirty_
|= DIRTY_DEFAULT
;
481 /* Prepare a blit for up to 2 DCs */
482 /* rc1 and rc2 are the rectangles where we want to draw or
483 * from where we take pixels. */
486 DC_vPrepareDCsForBlit(PDC pdc1
,
491 PDC pdcFirst
, pdcSecond
;
492 PRECT prcFirst
, prcSecond
;
495 if (pdc1
->pdcattr
->ulDirty_
& (DIRTY_FILL
| DC_BRUSH_DIRTY
))
496 DC_vUpdateFillBrush(pdc1
);
497 if (pdc1
->pdcattr
->ulDirty_
& (DIRTY_LINE
| DC_PEN_DIRTY
))
498 DC_vUpdateLineBrush(pdc1
);
499 if(pdc1
->pdcattr
->ulDirty_
& DIRTY_TEXT
)
500 DC_vUpdateTextBrush(pdc1
);
502 /* Lock them in good order */
505 if((ULONG_PTR
)pdc1
->ppdev
->hsemDevLock
>= (ULONG_PTR
)pdc2
->ppdev
->hsemDevLock
)
528 if(pdcFirst
&& pdcFirst
->dctype
== DCTYPE_DIRECT
)
530 EngAcquireSemaphore(pdcFirst
->ppdev
->hsemDevLock
);
531 MouseSafetyOnDrawStart(pdcFirst
->ppdev
,
536 /* Update surface if needed */
537 if(pdcFirst
->ppdev
->pSurface
!= pdcFirst
->dclevel
.pSurface
)
539 DC_vUpdateDC(pdcFirst
);
542 if(pdcSecond
&& pdcSecond
->dctype
== DCTYPE_DIRECT
)
544 EngAcquireSemaphore(pdcSecond
->ppdev
->hsemDevLock
);
545 MouseSafetyOnDrawStart(pdcSecond
->ppdev
,
550 /* Update surface if needed */
551 if(pdcSecond
->ppdev
->pSurface
!= pdcSecond
->dclevel
.pSurface
)
553 DC_vUpdateDC(pdcSecond
);
558 /* Finishes a blit for one or two DCs */
561 DC_vFinishBlit(PDC pdc1
, PDC pdc2
)
563 if(pdc1
->dctype
== DCTYPE_DIRECT
)
565 MouseSafetyOnDrawEnd(pdc1
->ppdev
);
566 EngReleaseSemaphore(pdc1
->ppdev
->hsemDevLock
);
571 if(pdc2
->dctype
== DCTYPE_DIRECT
)
573 MouseSafetyOnDrawEnd(pdc2
->ppdev
);
574 EngReleaseSemaphore(pdc2
->ppdev
->hsemDevLock
);
582 PUNICODE_STRING pustrDevice
,
584 PUNICODE_STRING pustrLogAddr
,
595 DPRINT("GreOpenDCW(%S, iType=%ld)\n",
596 pustrDevice
? pustrDevice
->Buffer
: NULL
, iType
);
598 /* Get a PDEVOBJ for the device */
599 ppdev
= EngpGetPDEV(pustrDevice
);
602 DPRINT1("Didn't find a suitable PDEV\n");
606 DPRINT("GreOpenDCW - ppdev = %p\n", ppdev
);
608 pdc
= DC_AllocDcWithHandle();
611 DPRINT1("Could not Allocate a DC\n");
612 PDEVOBJ_vRelease(ppdev
);
615 hdc
= pdc
->BaseObject
.hHmgr
;
617 /* Lock ppdev and initialize the new DC */
618 DC_vInitDc(pdc
, iType
, ppdev
);
622 DC_bAllocDcAttr(pdc
);
626 DPRINT("returning hdc = %p\n", hdc
);
634 PUNICODE_STRING pustrDevice
,
636 PUNICODE_STRING pustrLogAddr
,
643 UNICODE_STRING ustrDevice
;
644 WCHAR awcDevice
[CCHDEVICENAME
];
649 /* Only if a devicename is given, we need any data */
652 /* Initialize destination string */
653 RtlInitEmptyUnicodeString(&ustrDevice
, awcDevice
, sizeof(awcDevice
));
657 /* Probe the UNICODE_STRING and the buffer */
658 ProbeForRead(pustrDevice
, sizeof(UNICODE_STRING
), 1);
659 ProbeForRead(pustrDevice
->Buffer
, pustrDevice
->Length
, 1);
661 /* Copy the string */
662 RtlCopyUnicodeString(&ustrDevice
, pustrDevice
);
666 /* FIXME: could be larger */
667 ProbeForRead(pdmInit
, sizeof(DEVMODEW
), 1);
668 RtlCopyMemory(&dmInit
, pdmInit
, sizeof(DEVMODEW
));
673 ProbeForWrite(pUMdhpdev
, sizeof(HANDLE
), 1);
676 _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER
)
678 SetLastNtError(_SEH2_GetExceptionCode());
679 _SEH2_YIELD(return NULL
);
692 UNICODE_STRING ustrDISPLAY
= RTL_CONSTANT_STRING(L
"DISPLAY");
693 if (RtlEqualUnicodeString(&ustrDevice
, &ustrDISPLAY
, TRUE
))
699 /* Call the internal function */
700 hdc
= GreOpenDCW(pustrDevice
? &ustrDevice
: NULL
,
701 pdmInit
? &dmInit
: NULL
,
702 NULL
, // FIXME: pwszLogAddress
706 NULL
, // FIXME: pDriverInfo2
707 pUMdhpdev
? &dhpdev
: NULL
);
709 /* If we got a HDC and a UM dhpdev is requested,... */
710 if (hdc
&& pUMdhpdev
)
712 /* Copy dhpdev to caller (FIXME: use dhpdev?) */
715 /* Pointer was already probed */
716 *(HANDLE
*)pUMdhpdev
= dhpdev
;
718 _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER
)
731 NtGdiCreateCompatibleDC(HDC hdc
)
737 DPRINT("NtGdiCreateCompatibleDC(0x%p)\n", hdc
);
739 /* Did the caller provide a DC? */
742 /* Yes, try to lock it */
743 pdc
= DC_LockDc(hdc
);
746 DPRINT1("Could not lock source DC %p\n", hdc
);
750 /* Get the pdev from the DC */
752 InterlockedIncrement(&ppdev
->cPdevRefs
);
754 /* Unlock the source DC */
759 /* No DC given, get default device */
760 ppdev
= EngpGetPDEV(NULL
);
765 DPRINT1("Didn't find a suitable PDEV\n");
769 /* Allocate a new DC */
770 pdcNew
= DC_AllocDcWithHandle();
773 DPRINT1("Could not allocate a new DC\n");
774 PDEVOBJ_vRelease(ppdev
);
777 hdcNew
= pdcNew
->BaseObject
.hHmgr
;
779 /* Lock ppdev and initialize the new DC */
780 DC_vInitDc(pdcNew
, DCTYPE_MEMORY
, ppdev
);
784 /* Allocate a dc attribute */
785 DC_bAllocDcAttr(pdcNew
);
788 DC_vSelectSurface(pdcNew
, psurfDefaultBitmap
);
792 DPRINT("Leave NtGdiCreateCompatibleDC hdcNew = %p\n", hdcNew
);
799 IntGdiDeleteDC(HDC hDC
, BOOL Force
)
801 PDC DCToDelete
= DC_LockDc(hDC
);
803 if (DCToDelete
== NULL
)
805 EngSetLastError(ERROR_INVALID_HANDLE
);
811 /* Windows permits NtGdiDeleteObjectApp to delete a permanent DC
812 * For some reason, it's still a valid handle, pointing to some kernel data.
813 * Not sure if this is a bug, a feature, some cache stuff... Who knows?
814 * See NtGdiDeleteObjectApp test for details */
815 if (DCToDelete
->fs
& DC_FLAG_PERMANENT
)
817 DC_UnlockDc(DCToDelete
);
818 if(UserReleaseDC(NULL
, hDC
, FALSE
))
820 /* ReactOs feature : call UserReleaseDC
821 * I don't think windows does it.
822 * Still, complain, no one should ever call DeleteDC
824 DPRINT1("No, you naughty application!\n");
829 /* This is not a window owned DC.
830 * Force its deletion */
831 return IntGdiDeleteDC(hDC
, TRUE
);
836 DC_UnlockDc(DCToDelete
);
838 if (GreIsHandleValid(hDC
))
840 if (!GreDeleteObject(hDC
))
842 DPRINT1("DC_FreeDC failed\n");
847 DPRINT1("Attempted to Delete 0x%x currently being destroyed!!!\n", hDC
);
855 NtGdiDeleteObjectApp(HANDLE hobj
)
857 /* Complete all pending operations */
858 NtGdiFlushUserBatch(); // FIXME: we shouldn't need this
860 if (GDI_HANDLE_IS_STOCKOBJ(hobj
)) return TRUE
;
862 if (GreGetObjectOwner(hobj
) != GDI_OBJ_HMGR_POWNED
)
864 EngSetLastError(ERROR_INVALID_HANDLE
);
868 if (GDI_HANDLE_GET_TYPE(hobj
) != GDI_OBJECT_TYPE_DC
)
869 return GreDeleteObject(hobj
);
871 // FIXME: everything should be callback based
872 return IntGdiDeleteDC(hobj
, FALSE
);
877 MakeInfoDC(PDC pdc
, BOOL bSet
)
882 /* Can not be a display DC. */
883 if (pdc
->fs
& DC_FLAG_DISPLAY
) return FALSE
;
886 if (pdc
->fs
& DC_FLAG_TEMPINFODC
|| pdc
->dctype
== DC_TYPE_DIRECT
)
889 pSurface
= pdc
->dclevel
.pSurface
;
890 pdc
->fs
|= DC_FLAG_TEMPINFODC
;
891 pdc
->pSurfInfo
= pSurface
;
892 pdc
->dctype
= DC_TYPE_INFO
;
893 pdc
->dclevel
.pSurface
= NULL
;
895 PDEVOBJ_sizl(pdc
->ppdev
, &sizl
);
897 if ( sizl
.cx
== pdc
->dclevel
.sizl
.cx
&&
898 sizl
.cy
== pdc
->dclevel
.sizl
.cy
)
901 pdc
->dclevel
.sizl
.cx
= sizl
.cx
;
902 pdc
->dclevel
.sizl
.cy
= sizl
.cy
;
906 if (!(pdc
->fs
& DC_FLAG_TEMPINFODC
) || pdc
->dctype
!= DC_TYPE_INFO
)
909 pSurface
= pdc
->pSurfInfo
;
910 pdc
->fs
&= ~DC_FLAG_TEMPINFODC
;
911 pdc
->dclevel
.pSurface
= pSurface
;
912 pdc
->dctype
= DC_TYPE_DIRECT
;
913 pdc
->pSurfInfo
= NULL
;
916 (pSurface
->SurfObj
.sizlBitmap
.cx
== pdc
->dclevel
.sizl
.cx
&&
917 pSurface
->SurfObj
.sizlBitmap
.cy
== pdc
->dclevel
.sizl
.cy
) )
920 pdc
->dclevel
.sizl
.cx
= pSurface
->SurfObj
.sizlBitmap
.cx
;
921 pdc
->dclevel
.sizl
.cy
= pSurface
->SurfObj
.sizlBitmap
.cy
;
923 return IntSetDefaultRegion(pdc
);
936 PDC pdc
= DC_LockDc(hdc
);
939 Ret
= MakeInfoDC(pdc
, bSet
);
949 PUNICODE_STRING Driver
,
950 PUNICODE_STRING pustrDevice
,
952 CONST PDEVMODEW pdmInit
,
957 hdc
= GreOpenDCW(pustrDevice
,
960 CreateAsIC
? DCTYPE_INFO
:
961 (Driver
? DC_TYPE_DIRECT
: DC_TYPE_DIRECT
),
971 IntGdiCreateDisplayDC(HDEV hDev
, ULONG DcType
, BOOL EmptyDC
)
977 if (DcType
== DC_TYPE_MEMORY
)
978 hDC
= NtGdiCreateCompatibleDC(NULL
); // OH~ Yuck! I think I taste vomit in my mouth!
980 hDC
= IntGdiCreateDC(NULL
, NULL
, NULL
, NULL
, (DcType
== DC_TYPE_INFO
));