d20018e298e6abd3ca03044e323c5c835eeb8344
2 * COPYRIGHT: See COPYING in the top level directory
3 * PROJECT: ReactOS Win32k subsystem
4 * PURPOSE: Functions for saving and restoring dc states
5 * FILE: subsystems/win32/win32k/objects/dcstate.c
6 * PROGRAMER: Timo Kreuzer (timo.kreuzer@rectos.org)
16 DC_vCopyState(PDC pdcSrc
, PDC pdcDst
, BOOL To
)
18 DPRINT("DC_vCopyState(%p, %p)\n", pdcSrc
->BaseObject
.hHmgr
, pdcDst
->BaseObject
.hHmgr
);
20 /* Copy full DC attribute */
21 *pdcDst
->pdcattr
= *pdcSrc
->pdcattr
;
23 /* Get/SetDCState() don't change hVisRgn field ("Undoc. Windows" p.559). */
24 /* The VisRectRegion field needs to be set to a valid state */
26 /* Mark some fields as dirty */
27 pdcDst
->pdcattr
->ulDirty_
|= (DIRTY_FILL
|DIRTY_LINE
|DIRTY_TEXT
|DIRTY_BACKGROUND
|DIRTY_CHARSET
|DC_ICM_NOT_CALIBRATED
|DC_ICM_NOT_SET
); // Note: Use if, To is FALSE....
30 pdcDst
->dclevel
.pColorSpace
= pdcSrc
->dclevel
.pColorSpace
;
31 pdcDst
->dclevel
.lSaveDepth
= pdcSrc
->dclevel
.lSaveDepth
;
32 pdcDst
->dclevel
.hdcSave
= pdcSrc
->dclevel
.hdcSave
;
33 pdcDst
->dclevel
.laPath
= pdcSrc
->dclevel
.laPath
;
34 pdcDst
->dclevel
.ca
= pdcSrc
->dclevel
.ca
;
35 pdcDst
->dclevel
.mxWorldToDevice
= pdcSrc
->dclevel
.mxWorldToDevice
;
36 pdcDst
->dclevel
.mxDeviceToWorld
= pdcSrc
->dclevel
.mxDeviceToWorld
;
37 pdcDst
->dclevel
.mxWorldToPage
= pdcSrc
->dclevel
.mxWorldToPage
;
38 pdcDst
->dclevel
.efM11PtoD
= pdcSrc
->dclevel
.efM11PtoD
;
39 pdcDst
->dclevel
.efM22PtoD
= pdcSrc
->dclevel
.efM22PtoD
;
40 pdcDst
->dclevel
.sizl
= pdcSrc
->dclevel
.sizl
;
41 pdcDst
->dclevel
.hpal
= pdcSrc
->dclevel
.hpal
;
43 /* Handle references here correctly */
44 DC_vSelectFillBrush(pdcDst
, pdcSrc
->dclevel
.pbrFill
);
45 DC_vSelectLineBrush(pdcDst
, pdcSrc
->dclevel
.pbrLine
);
46 DC_vSelectPalette(pdcDst
, pdcSrc
->dclevel
.ppal
);
48 /* Dereference the old font, reference the new one */
49 if (pdcDst
->dclevel
.plfnt
) LFONT_ShareUnlockFont(pdcDst
->dclevel
.plfnt
); /// @todo should aways be != NULL
50 GDIOBJ_vReferenceObjectByPointer(&pdcSrc
->dclevel
.plfnt
->BaseObject
);
51 pdcDst
->dclevel
.plfnt
= pdcSrc
->dclevel
.plfnt
;
53 /* Get/SetDCState() don't change hVisRgn field ("Undoc. Windows" p.559). */
54 if (To
) // Copy "To" SaveDC state.
56 if (pdcSrc
->rosdc
.hClipRgn
)
58 pdcDst
->rosdc
.hClipRgn
= IntSysCreateRectRgn(0, 0, 0, 0);
59 NtGdiCombineRgn(pdcDst
->rosdc
.hClipRgn
, pdcSrc
->rosdc
.hClipRgn
, 0, RGN_COPY
);
61 // FIXME: Handle prgnMeta!
63 else // Copy "!To" RestoreDC state.
64 { /* The VisRectRegion field needs to be set to a valid state */
65 GdiExtSelectClipRgn(pdcDst
, pdcSrc
->rosdc
.hClipRgn
, RGN_COPY
);
71 IntGdiCleanDC(HDC hDC
)
74 if (!hDC
) return FALSE
;
76 if (!dc
) return FALSE
;
80 DC_vCopyState(defaultDCstate
, dc
, FALSE
);
81 /* Update the brushes now, because they reference some objects (the DC palette)
82 * Which belong to the current process, and this DC might be used for another process
83 * after being cleaned up (for GetDC(0) for instance) */
84 DC_vUpdateFillBrush(dc
);
85 DC_vUpdateBackgroundBrush(dc
);
86 DC_vUpdateLineBrush(dc
);
87 DC_vUpdateTextBrush(dc
);
102 IN OPTIONAL VOID
*pDriverInfo2
,
103 OUT VOID
*ppUMdhpdev
)
119 ASSERT(iSaveLevel
> 0);
120 DPRINT("DC_vRestoreDC(%p, %ld)\n", pdc
->BaseObject
.hHmgr
, iSaveLevel
);
122 /* Loop the save levels */
123 while (pdc
->dclevel
.lSaveDepth
> iSaveLevel
)
125 hdcSave
= pdc
->dclevel
.hdcSave
;
126 DPRINT("RestoreDC = %p\n", hdcSave
);
128 /* Set us as the owner */
129 if (!GreSetObjectOwner(hdcSave
, GDI_OBJ_HMGR_POWNED
))
131 /* Could not get ownership. That's bad! */
132 DPRINT1("Could not get ownership of saved DC (%p) for hdc %p!\n",
133 hdcSave
, pdc
->BaseObject
.hHmgr
);
137 /* Lock the saved dc */
138 pdcSave
= DC_LockDc(hdcSave
);
141 /* WTF? Internal error! */
142 DPRINT1("Could not lock the saved DC (%p) for dc %p!\n",
143 hdcSave
, pdc
->BaseObject
.hHmgr
);
147 /* Remove the saved dc from the queue */
148 pdc
->dclevel
.hdcSave
= pdcSave
->dclevel
.hdcSave
;
150 /* Decrement save level */
151 pdc
->dclevel
.lSaveDepth
--;
153 /* Is this the state we want? */
154 if (pdc
->dclevel
.lSaveDepth
== iSaveLevel
)
156 /* Copy the state back */
157 DC_vCopyState(pdcSave
, pdc
, FALSE
);
159 /* Only memory DC's change their surface */
160 if (pdc
->dctype
== DCTYPE_MEMORY
)
161 DC_vSelectSurface(pdc
, pdcSave
->dclevel
.pSurface
);
163 // Restore Path by removing it, if the Save flag is set.
164 // BeginPath will takecare of the rest.
165 if (pdc
->dclevel
.hPath
&& pdc
->dclevel
.flPath
& DCPATH_SAVE
)
167 PATH_Delete(pdc
->dclevel
.hPath
);
168 pdc
->dclevel
.hPath
= 0;
169 pdc
->dclevel
.flPath
&= ~DCPATH_SAVE
;
173 /* Prevent save dc from being restored */
174 pdcSave
->dclevel
.lSaveDepth
= 1;
177 DC_UnlockDc(pdcSave
);
178 /* Delete the saved dc */
179 GreDeleteObject(hdcSave
);
182 DPRINT("Leave DC_vRestoreDC()\n");
195 DPRINT("NtGdiRestoreDC(%p, %d)\n", hdc
, iSaveLevel
);
197 /* Lock the original DC */
198 pdc
= DC_LockDc(hdc
);
201 EngSetLastError(ERROR_INVALID_HANDLE
);
205 ASSERT(pdc
->dclevel
.lSaveDepth
> 0);
207 /* Negative values are relative to the stack top */
209 iSaveLevel
= pdc
->dclevel
.lSaveDepth
+ iSaveLevel
;
211 /* Check if we have a valid instance */
212 if (iSaveLevel
<= 0 || iSaveLevel
>= pdc
->dclevel
.lSaveDepth
)
214 DPRINT("Illegal save level, requested: %ld, current: %ld\n",
215 iSaveLevel
, pdc
->dclevel
.lSaveDepth
);
217 EngSetLastError(ERROR_INVALID_PARAMETER
);
221 /* Call the internal function */
222 DC_vRestoreDC(pdc
, iSaveLevel
);
226 DPRINT("Leave NtGdiRestoreDC\n");
240 DPRINT("NtGdiSaveDC(%p)\n", hDC
);
242 /* Lock the original dc */
243 pdc
= DC_LockDc(hDC
);
246 DPRINT("Could not lock DC\n");
247 EngSetLastError(ERROR_INVALID_HANDLE
);
251 /* Allocate a new dc */
252 pdcSave
= DC_AllocDcWithHandle();
255 DPRINT("Could not allocate a new DC\n");
259 hdcSave
= pdcSave
->BaseObject
.hHmgr
;
261 InterlockedIncrement(&pdc
->ppdev
->cPdevRefs
);
262 DC_vInitDc(pdcSave
, DCTYPE_MEMORY
, pdc
->ppdev
);
264 /* Handle references here correctly */
265 //pdcSrc->dclevel.pSurface = NULL;
266 //pdcSrc->dclevel.pbrFill = NULL;
267 //pdcSrc->dclevel.pbrLine = NULL;
268 //pdcSrc->dclevel.ppal = NULL;
270 /* Make it a kernel handle
271 (FIXME: Windows handles this differently, see Wiki) */
272 GDIOBJ_vSetObjectOwner(&pdcSave
->BaseObject
, GDI_OBJ_HMGR_PUBLIC
);
274 /* Copy the current state */
275 DC_vCopyState(pdc
, pdcSave
, TRUE
);
277 /* Only memory DC's change their surface */
278 if (pdc
->dctype
== DCTYPE_MEMORY
)
279 DC_vSelectSurface(pdcSave
, pdc
->dclevel
.pSurface
);
282 /* FIXME: Why this way? */
283 pdcSave
->dclevel
.hPath
= pdc
->dclevel
.hPath
;
284 pdcSave
->dclevel
.flPath
= pdc
->dclevel
.flPath
| DCPATH_SAVESTATE
;
285 if (pdcSave
->dclevel
.hPath
) pdcSave
->dclevel
.flPath
|= DCPATH_SAVE
;
287 /* Set new dc as save dc */
288 pdc
->dclevel
.hdcSave
= hdcSave
;
290 /* Increase save depth, return old value */
291 lSaveDepth
= pdc
->dclevel
.lSaveDepth
++;
293 /* Cleanup and return */
294 DC_UnlockDc(pdcSave
);
297 DPRINT("Leave NtGdiSaveDC: %ld, hdcSave = %p\n", lSaveDepth
, hdcSave
);