ReactOS 0.4.15-dev-7712-gbbbcd8e
eng.c File Reference
#include <dxg_int.h>
Include dependency graph for eng.c:

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Functions

PDD_SURFACE_LOCAL NTAPI DxDdLockDirectDrawSurface (HANDLE hDdSurface)
 
BOOL NTAPI DxDdUnlockDirectDrawSurface (PDD_SURFACE_LOCAL pSurface)
 

Function Documentation

◆ DxDdLockDirectDrawSurface()

PDD_SURFACE_LOCAL NTAPI DxDdLockDirectDrawSurface ( HANDLE  hDdSurface)

Definition at line 15 of file eng.c.

16{
17 PEDD_SURFACE pEDDSurface = NULL;
18 PDD_SURFACE_LOCAL pSurfacelcl = NULL;
19
20 pEDDSurface = DdHmgLock(hDdSurface, ObjType_DDSURFACE_TYPE, FALSE);
21 if (pEDDSurface != NULL)
22 {
23 pSurfacelcl = &pEDDSurface->ddsSurfaceLocal;
24 }
25
26 return pSurfacelcl;
27}
PVOID FASTCALL DdHmgLock(HANDLE DdHandle, UCHAR ObjectType, BOOLEAN LockOwned)
Definition: ddhmg.c:147
#define NULL
Definition: types.h:112
#define FALSE
Definition: types.h:117
#define ObjType_DDSURFACE_TYPE
Definition: dxg_int.h:52
DD_SURFACE_LOCAL ddsSurfaceLocal
Definition: directxint.h:51

◆ DxDdUnlockDirectDrawSurface()

BOOL NTAPI DxDdUnlockDirectDrawSurface ( PDD_SURFACE_LOCAL  pSurface)

Definition at line 31 of file eng.c.

32{
33 BOOL retVal = FALSE;
34 //PEDD_SURFACE pEDDSurface = NULL;
35
36 if (pSurface)
37 {
38 // pEDDSurface = (PEDD_SURFACE)( ((PBYTE)pSurface) - sizeof(DD_BASEOBJECT));
39 // InterlockedDecrement(&pEDDSurface->pobj.cExclusiveLock);
40 retVal = TRUE;
41 }
42
43 return retVal;
44}
#define TRUE
Definition: types.h:120
unsigned int BOOL
Definition: ntddk_ex.h:94
_In_ DD_SURFACE_LOCAL * pSurface
Definition: winddi.h:3481