swr/rast: Add ConcatLists()

for concatenating lists

Reviewed-by: Bruce Cherniak <bruce.cherniak@intel.com>

src/gallium/drivers/swr/rasterizer/codegen/gen_common.py

@@ -31,6 +31,12 @@ import shutil
 from mako.template import Template
 from mako.exceptions import RichTraceback
 
+#==============================================================================
+def ConcatLists(list_of_lists):
+    output = []
+    for l in list_of_lists: output += l
+    return output
+
 #==============================================================================
 def MakeTmpDir(suffix=''):
     '''