Update libva headers to the latest release (1.2.1).

third_party/libva/va/wayland/va_backend_wayland.h

Index: third_party/libva/va/wayland/va_backend_wayland.h
diff --git a/third_party/libva/va/glx/va_backend_glx.h b/third_party/libva/va/wayland/va_backend_wayland.h
similarity index 51%
copy from third_party/libva/va/glx/va_backend_glx.h
copy to third_party/libva/va/wayland/va_backend_wayland.h
index d1104854971f4ac9cf98b5fef49ac7259cbb642c..b33e3a13d2781c2da90d232724f150ef29162522 100644
--- a/third_party/libva/va/glx/va_backend_glx.h
+++ b/third_party/libva/va/wayland/va_backend_wayland.h
@@ -1,5 +1,7 @@
 /*
- * Copyright (C) 2009 Splitted-Desktop Systems. All Rights Reserved.
+ * va_backend_wayland.h - VA driver implementation hooks for Wayland
+ *
+ * Copyright (c) 2012 Intel Corporation. All Rights Reserved.
  *
  * Permission is hereby granted, free of charge, to any person obtaining a
  * copy of this software and associated documentation files (the
@@ -16,39 +18,48 @@
  * 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 PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR
+ * IN NO EVENT SHALL INTEL 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.
  */
 
-#ifndef VA_BACKEND_GLX_H
-#define VA_BACKEND_GLX_H
+#ifndef VA_BACKEND_WAYLAND_H
+#define VA_BACKEND_WAYLAND_H
+
+#include <va/va.h>
+#include <wayland-client.h>
 
+/** \brief VA/Wayland API version. */
+#define VA_WAYLAND_API_VERSION  (0x574c4400) /* WLD0 */
+
+/* Forward declarations */
 struct VADriverContext;
 
-struct VADriverVTableGLX {
-    /* Optional: create a surface used for display to OpenGL */
-    VAStatus (*vaCreateSurfaceGLX)(
-        struct VADriverContext *ctx,
-        unsigned int            gl_target,
-        unsigned int            gl_texture,
-        void                  **gl_surface
-    );
+/** \brief VA/Wayland implementation hooks. */
+struct VADriverVTableWayland {
+    /**
+     * \brief Interface version.
+     *
+     * Implementations shall set this field to \ref VA_WAYLAND_API_VERSION.
+     */
+    unsigned int version;
 
-    /* Optional: destroy a VA/GLX surface */
-    VAStatus (*vaDestroySurfaceGLX)(
+    /** \brief Hook to return Wayland buffer associated with the VA surface. */
+    VAStatus (*vaGetSurfaceBufferWl)(
         struct VADriverContext *ctx,
-        void                   *gl_surface
+        VASurfaceID             surface,
+        unsigned int            flags,
+        struct wl_buffer      **out_buffer
     );
 
-    /* Optional: copy a VA surface to a VA/GLX surface */
-    VAStatus (*vaCopySurfaceGLX)(
+    /** \brief Hook to return Wayland buffer associated with the VA image. */
+    VAStatus (*vaGetImageBufferWl)(
         struct VADriverContext *ctx,
-        void                   *gl_surface,
-        VASurfaceID             surface,
-        unsigned int            flags
+        VAImageID               image,
+        unsigned int            flags,
+        struct wl_buffer      **out_buffer
     );
 };
 
-#endif /* VA_BACKEND_GLX_H */
+#endif /* VA_BACKEND_WAYLAND_H */