mesa/es: Generate code for special functions.

es_generator.py did not generate code for special functions.  They were
supposed to be defined elsewhere.  But as a result, parameter checking
was also skipped.  This commit changes the way special functions are
called so that parameter checking is always performed.

When there is nothing to check, the check functions becomes macros
expanding to the real functions, as an optimization.

Signed-off-by: Chia-I Wu <olvaffe@gmail.com>

1 files changed, 4 insertions, 1 deletions

diff --git a/src/mesa/es/main/APIspecutil.py b/src/mesa/es/main/APIspecutil.py
index 5bfb699ba7..27a8fe8a6d 100644
--- a/src/mesa/es/main/APIspecutil.py
+++ b/src/mesa/es/main/APIspecutil.py
@@ -59,8 +59,11 @@ def _ParseXML(filename, apiname):
     for func in api.functions:
         alias, need_conv = impl.match(func, conversions)
         if not alias:
-            print >>sys.stderr, "Error: unable to dispatch %s" % func.name
+            # external functions are manually dispatched
+            if not func.is_external:
+                print >>sys.stderr, "Error: unable to dispatch %s" % func.name
             alias = func
+            need_conv = False
 
         __functions[func.name] = func
         __aliases[func.name] = (alias, need_conv)