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54 lines
1 KiB
C
54 lines
1 KiB
C
/*
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* COPYRIGHT: See COPYING in the top level directory
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* PROJECT: ReactOS kernel
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* PURPOSE: Native driver for dxg implementation
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* FILE: drivers/directx/dxg/main.c
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* PROGRAMER: Magnus olsen (magnus@greatlord.com)
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* REVISION HISTORY:
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* 30/12-2007 Magnus Olsen
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*/
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#include <dxg_int.h>
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PDD_SURFACE_LOCAL
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NTAPI
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DxDdLockDirectDrawSurface(HANDLE hDdSurface)
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{
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PEDD_SURFACE pEDDSurface = NULL;
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PDD_SURFACE_LOCAL pSurfacelcl = NULL;
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pEDDSurface = DdHmgLock(hDdSurface, ObjType_DDSURFACE_TYPE, FALSE);
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if (pEDDSurface != NULL)
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{
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pSurfacelcl = &pEDDSurface->ddsSurfaceLocal;
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}
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return pSurfacelcl;
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}
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BOOL
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NTAPI
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DxDdUnlockDirectDrawSurface(PDD_SURFACE_LOCAL pSurface)
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{
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BOOL retVal = FALSE;
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PEDD_SURFACE pEDDSurface = NULL;
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if (pSurface)
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{
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pEDDSurface = (PEDD_SURFACE)( ((PBYTE)pSurface) - sizeof(DD_BASEOBJECT));
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// InterlockedDecrement(&pEDDSurface->pobj.cExclusiveLock);
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retVal = TRUE;
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}
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return retVal;
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}
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