glapi: add KHR_no_error support to dispatch table generation

This will allows us to create no error versions of functions
noted by a _no_error suffix. We also need to set a no_error
attribute equal to "true" in the xml.

V3: stop the no_error attribute being overwritten when functions
    alias another.
V2: tidy up suggested by Nicolai.

Reviewed-by: Nicolai Hähnle <[email protected]>

1 files changed, 6 insertions, 0 deletions

diff --git a/src/mapi/glapi/gen/gl_XML.py b/src/mapi/glapi/gen/gl_XML.py
index c688906e884..a5320e90a1d 100644
--- a/src/mapi/glapi/gen/gl_XML.py
+++ b/src/mapi/glapi/gen/gl_XML.py
@@ -606,6 +606,7 @@ class gl_function( gl_item ):
         self.exec_flavor = 'mesa'
         self.desktop = True
         self.deprecated = None
+        self.has_no_error_variant = False
 
         # self.entry_point_api_map[name][api] is a decimal value
         # indicating the earliest version of the given API in which
@@ -676,6 +677,11 @@ class gl_function( gl_item ):
         if not is_attr_true(element, 'desktop', 'true'):
             self.desktop = False
 
+        if self.has_no_error_variant or is_attr_true(element, 'no_error'):
+            self.has_no_error_variant = True
+        else:
+            self.has_no_error_variant = False
+
         if alias:
             true_name = alias
         else: