xgl: Add xglCmdBlitImage entry point

Part one of adding support for abitrary scaled blits and format conversions.
Just interface here. Functionality to follow.
bug #13071
alpha rev: r29665
diff --git a/xgl.py b/xgl.py
index 6afe794..ef3e8c7 100644
--- a/xgl.py
+++ b/xgl.py
@@ -676,6 +676,15 @@
              Param("uint32_t", "regionCount"),
              Param("const XGL_IMAGE_COPY*", "pRegions")]),
 
+        Proto("void", "CmdBlitImage",
+            [Param("XGL_CMD_BUFFER", "cmdBuffer"),
+             Param("XGL_IMAGE", "srcImage"),
+             Param("XGL_IMAGE_LAYOUT", "srcLayout"),
+             Param("XGL_IMAGE", "destImage"),
+             Param("XGL_IMAGE_LAYOUT", "destLayout"),
+             Param("uint32_t", "regionCount"),
+             Param("const XGL_IMAGE_BLIT*", "pRegions")]),
+
         Proto("void", "CmdCopyBufferToImage",
             [Param("XGL_CMD_BUFFER", "cmdBuffer"),
              Param("XGL_BUFFER", "srcBuffer"),