1 files changed, 25 insertions, 10 deletions

diff --git a/src/gallium/state_trackers/wgl/shared/stw_tls.c b/src/gallium/state_trackers/wgl/shared/stw_tls.c
index 95863ca9cf..4bd6a9289c 100644
--- a/src/gallium/state_trackers/wgl/shared/stw_tls.c
+++ b/src/gallium/state_trackers/wgl/shared/stw_tls.c
@@ -51,11 +51,23 @@ stw_tls_data_create()
 
    data = CALLOC_STRUCT(stw_tls_data);
    if (!data)
-      return NULL;
+      goto no_data;
+
+   data->hCallWndProcHook = SetWindowsHookEx(WH_CALLWNDPROC,
+                                             stw_call_window_proc,
+                                             NULL,
+                                             GetCurrentThreadId());
+   if(data->hCallWndProcHook == NULL)
+      goto no_hook;
+
+   TlsSetValue(tlsIndex, data);
 
-   data->currentPixelFormat = 0;
-   
    return data;
+
+no_hook:
+   FREE(data);
+no_data:
+   return NULL;
 }
 
 boolean
@@ -71,8 +83,6 @@ stw_tls_init_thread(void)
    if(!data)
       return FALSE;
 
-   TlsSetValue(tlsIndex, data);
-
    return TRUE;
 }
 
@@ -86,8 +96,16 @@ stw_tls_cleanup_thread(void)
    }
 
    data = (struct stw_tls_data *) TlsGetValue(tlsIndex);
-   TlsSetValue(tlsIndex, NULL);
-   FREE(data);
+   if(data) {
+      TlsSetValue(tlsIndex, NULL);
+   
+      if(data->hCallWndProcHook) {
+         UnhookWindowsHookEx(data->hCallWndProcHook);
+         data->hCallWndProcHook = NULL;
+      }
+   
+      FREE(data);
+   }
 }
 
 void
@@ -112,12 +130,9 @@ stw_tls_get_data(void)
    if(!data) {
       /* DllMain is called with DLL_THREAD_ATTACH only by threads created after 
        * the DLL is loaded by the process */
-      
       data = stw_tls_data_create();
       if(!data)
          return NULL;
-
-      TlsSetValue(tlsIndex, data);
    }
 
    return data;