From 458d86dcbf18ee28bc4ad30194ef71a8481e5588 Mon Sep 17 00:00:00 2001
From: "Asad M. Zaman" <masaduzz@users.sourceforge.net>
Date: Fri, 12 Sep 2003 21:55:47 +0000
Subject: [PATCH] fixed a crash bug with certain cards that do not support
 stencil buffer. The crash would fail the display of the first frame. Example
 card, PowerVR kyro

---
 panda/src/dxgsg8/dxGraphicsStateGuardian8.cxx | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/panda/src/dxgsg8/dxGraphicsStateGuardian8.cxx b/panda/src/dxgsg8/dxGraphicsStateGuardian8.cxx
index 0614bc38e8..32473a8a1e 100644
--- a/panda/src/dxgsg8/dxGraphicsStateGuardian8.cxx
+++ b/panda/src/dxgsg8/dxGraphicsStateGuardian8.cxx
@@ -4767,8 +4767,10 @@ void DXGraphicsStateGuardian8::set_render_target() {
 
   _pD3DDevice->GetDepthStencilSurface(&pStencil);
   _pD3DDevice->SetRenderTarget(pBack,pStencil);
-  pBack->Release();
-  pStencil->Release();
+  if (pBack)
+    pBack->Release();
+  if (pStencil)
+    pStencil->Release();
 }
 
 ////////////////////////////////////////////////////////////////////