From 1c4e9e6a0e09fcf6c95013bbb627fb107ffb7072 Mon Sep 17 00:00:00 2001
From: Henri Verbeet <hverbeet@codeweavers.com>
Date: Thu, 25 Mar 2010 09:32:35 +0100
Subject: [PATCH] wined3d: Disable two-sided stencil when doing stencil clears.

---
 dlls/wined3d/device.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/dlls/wined3d/device.c b/dlls/wined3d/device.c
index d48acf20bfe..b25c4ec8b08 100644
--- a/dlls/wined3d/device.c
+++ b/dlls/wined3d/device.c
@@ -4390,7 +4390,13 @@ HRESULT IWineD3DDeviceImpl_ClearSurface(IWineD3DDeviceImpl *This, IWineD3DSurfac
     ENTER_GL();
 
     /* Only set the values up once, as they are not changing */
-    if (Flags & WINED3DCLEAR_STENCIL) {
+    if (Flags & WINED3DCLEAR_STENCIL)
+    {
+        if (context->gl_info->supported[EXT_STENCIL_TWO_SIDE])
+        {
+            glDisable(GL_STENCIL_TEST_TWO_SIDE_EXT);
+            IWineD3DDeviceImpl_MarkStateDirty(This, STATE_RENDER(WINED3DRS_TWOSIDEDSTENCILMODE));
+        }
         glClearStencil(Stencil);
         checkGLcall("glClearStencil");
         glMask = glMask | GL_STENCIL_BUFFER_BIT;
-- 
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