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wined3d: Don't depend on uninitialized data in the CreateSurface() thunks (Valgrind). 

Perhaps IDirectDraw7_CreateSurface() should also always set "pSurface7" to
NULL on failure, but at least for our internal functions that's a silly thing
to rely on.
This commit is contained in:
Henri Verbeet 2009-10-29 10:37:13 +01:00 committed by Alexandre Julliard
parent be8026adf6
commit 052d955567
1 changed files with 28 additions and 34 deletions
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42
dlls/ddraw/ddraw_thunks.c
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@ -347,19 +347,17 @@ IDirectDrawImpl_CreateSurface(LPDIRECTDRAW This, LPDDSURFACEDESC pSDesc,
* since the data layout is the same */
hr = IDirectDraw7_CreateSurface((IDirectDraw7 *)ddraw_from_ddraw1(This),
(LPDDSURFACEDESC2)pSDesc, &pSurface7, pUnkOuter);
/* This coercion is safe, since the IDirectDrawSurface3 vtable has the
* IDirectDrawSurface vtable layout at the beginning */
*ppSurface = pSurface7 ?
(IDirectDrawSurface *)&((IDirectDrawSurfaceImpl *)pSurface7)->IDirectDrawSurface3_vtbl : NULL;
if (FAILED(hr))
{
*ppSurface = NULL;
return hr;
}
impl = (IDirectDrawSurfaceImpl *)pSurface7;
if(SUCCEEDED(hr) && impl)
{
*ppSurface = (IDirectDrawSurface *)&impl->IDirectDrawSurface3_vtbl;
set_surf_version(impl, 1);
IDirectDraw7_Release((IDirectDraw7 *)ddraw_from_ddraw1(This));
impl->ifaceToRelease = NULL;
}
return hr;
}
@ -375,19 +373,17 @@ IDirectDraw2Impl_CreateSurface(LPDIRECTDRAW2 This, LPDDSURFACEDESC pSDesc,
hr = IDirectDraw7_CreateSurface((IDirectDraw7 *)ddraw_from_ddraw2(This),
(LPDDSURFACEDESC2)pSDesc, &pSurface7, pUnkOuter);
/* This coercion is safe, since the IDirectDrawSurface3 vtable has the
* IDirectDrawSurface vtable layout at the beginning */
*ppSurface = pSurface7 ?
(IDirectDrawSurface *)&((IDirectDrawSurfaceImpl *)pSurface7)->IDirectDrawSurface3_vtbl : NULL;
if (FAILED(hr))
{
*ppSurface = NULL;
return hr;
}
impl = (IDirectDrawSurfaceImpl *)pSurface7;
if(SUCCEEDED(hr) && impl)
{
*ppSurface = (IDirectDrawSurface *)&impl->IDirectDrawSurface3_vtbl;
set_surf_version(impl, 2);
IDirectDraw7_Release((IDirectDraw7 *)ddraw_from_ddraw2(This));
impl->ifaceToRelease = NULL;
}
return hr;
}
@ -403,20 +399,18 @@ IDirectDraw3Impl_CreateSurface(LPDIRECTDRAW3 This, LPDDSURFACEDESC pSDesc,
hr = IDirectDraw7_CreateSurface((IDirectDraw7 *)ddraw_from_ddraw3(This),
(LPDDSURFACEDESC2)pSDesc, &pSurface7, pUnkOuter);
/* This coercion is safe, since the IDirectDrawSurface3 vtable has the
* IDirectDrawSurface vtable layout at the beginning */
*ppSurface = pSurface7 ?
(IDirectDrawSurface *)&((IDirectDrawSurfaceImpl *)pSurface7)->IDirectDrawSurface3_vtbl : NULL;
if (FAILED(hr))
{
*ppSurface = NULL;
return hr;
}
impl = (IDirectDrawSurfaceImpl *)pSurface7;
if(SUCCEEDED(hr) && impl)
{
*ppSurface = (IDirectDrawSurface *)&impl->IDirectDrawSurface3_vtbl;
set_surf_version(impl, 3);
IDirectDraw7_Release((IDirectDraw7 *)ddraw_from_ddraw3(This));
IDirectDraw3_AddRef(This);
impl->ifaceToRelease = (IUnknown *) This;
}
return hr;
}