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[WIN32K]

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Unlock/lock surface when locking DC

svn path=/branches/reactos-yarotows/; revision=46697
This commit is contained in:
Jérôme Gardou 2010-04-03 16:32:30 +00:00
parent a9afa4fad8
commit 736c7b0111
1 changed files with 8 additions and 4 deletions
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12
subsystems/win32/win32k/include/dc.h
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@ -169,15 +169,19 @@ DC_LockDc(HDC hdc)
{
PDC pdc;
pdc = GDIOBJ_LockObj(hdc, GDILoObjType_LO_DC_TYPE);
/* Direct DC's need PDEV locking */
if(pdc && pdc->dctype == DCTYPE_DIRECT)
{
/* Acquire shared PDEV lock */
EngAcquireSemaphoreShared(pdc->ppdev->hsemDevLock);
/* Get the current surface */
pdc->dclevel.pSurface = pdc->ppdev->pSurface;
/* Update Surface if needed */
if(pdc->dclevel.pSurface != pdc->ppdev->pSurface)
{
if(pdc->dclevel.pSurface) SURFACE_ShareUnlockSurface(pdc->dclevel.pSurface);
pdc->dclevel.pSurface = PDEVOBJ_pSurface(pdc->ppdev);
}
}
return pdc;
}