1 files changed, 57 insertions, 0 deletions
diff --git a/src/gallium/state_trackers/wgl/stw_ext_swapinterval.c b/src/gallium/state_trackers/wgl/stw_ext_swapinterval.c
new file mode 100644
index 0000000000..9eac6a1d09
--- /dev/null
+++ b/src/gallium/state_trackers/wgl/stw_ext_swapinterval.c
@@ -0,0 +1,57 @@
+/**************************************************************************
+ * 
+ * Copyright 2009 VMware, Inc.
+ * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * All Rights Reserved.
+ * 
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ * 
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
+ * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
+ * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ * 
+ **************************************************************************/
+
+#include <windows.h>
+
+#define WGL_WGLEXT_PROTOTYPES
+
+#include <GL/gl.h>
+#include <GL/wglext.h>
+#include "util/u_debug.h"
+
+/* A dummy implementation of this extension.
+ *
+ * Required as some applications retrieve and call these functions
+ * regardless of the fact that we don't advertise the extension and
+ * further more the results of wglGetProcAddress are NULL.
+ */
+WINGDIAPI BOOL APIENTRY
+wglSwapIntervalEXT(int interval)
+{
+   (void) interval;
+   debug_printf("%s: %d\n", __FUNCTION__, interval);
+   return TRUE;
+}
+
+WINGDIAPI int APIENTRY
+wglGetSwapIntervalEXT(void)
+{
+   return 0;
+}
+
+