Release() and recreate the depth-stencil surface when resetting the D3D9...

Release() and recreate the depth-stencil surface when resetting the D3D9 driver. This surface is implicitly created with D3DPOOL_DEFAULT, so needs to be released or the reset fails.

git-svn-id: svn://svn.code.sf.net/p/irrlicht/code/trunk@1759 dfc29bdd-3216-0410-991c-e03cc46cb475

source/Irrlicht/CD3D9Driver.cpp

@@ -2301,6 +2301,10 @@ bool CD3D9Driver::reset()
 				tex->Release();
 		}
 	}
+
+	if(DepthBuffers[0]->Surface)
+		DepthBuffers[0]->Surface->Release();
+
 	DriverWasReset=true;
 
 	HRESULT hr = pID3DDevice->Reset(&present);
@@ -2311,6 +2315,8 @@ bool CD3D9Driver::reset()
 			((CD3D9Texture*)(Textures[i].Surface))->createRenderTarget();
 	}
 
+	pID3DDevice->GetDepthStencilSurface(&(DepthBuffers[0]->Surface));
+
 	if (FAILED(hr))
 	{
 		if (hr == D3DERR_DEVICELOST)