eng.c File Reference

#include <dxg_int.h>

Include dependency graph for eng.c:

Go to the source code of this file.

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.

{
   PEDD_SURFACE pEDDSurface = NULL;
   PDD_SURFACE_LOCAL pSurfacelcl = NULL;
 
   pEDDSurface = DdHmgLock(hDdSurface, ObjType_DDSURFACE_TYPE, FALSE);
   if (pEDDSurface != NULL)
   {
        pSurfacelcl = &pEDDSurface->ddsSurfaceLocal;
   }
 
   return pSurfacelcl;
}

DxDdUnlockDirectDrawSurface()

BOOL NTAPI DxDdUnlockDirectDrawSurface

(

PDD_SURFACE_LOCAL

pSurface

)

Definition at line 31 of file eng.c.

{
    BOOL retVal = FALSE;
    //PEDD_SURFACE pEDDSurface  = NULL;
 
    if (pSurface)
    {
        // pEDDSurface = (PEDD_SURFACE)( ((PBYTE)pSurface) - sizeof(DD_BASEOBJECT));
        // InterlockedDecrement(&pEDDSurface->pobj.cExclusiveLock);
        retVal = TRUE;
    }
 
    return retVal;
}