glthread: fall back if a param size is non-zero and a pointer param is NULL

So that we don't crash. This is a GL error anyway.

Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>
Tested-by: Marge Bot <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/3948>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/3948>

diff --git a/src/mapi/glapi/gen/gl_marshal.py b/src/mapi/glapi/gen/gl_marshal.py
index 3147b70..05c4e28 100644 (file)
--- a/src/mapi/glapi/gen/gl_marshal.py
+++ b/src/mapi/glapi/gen/gl_marshal.py
@@ -225,6 +225,7 @@ class PrintCode(gl_XML.gl_print_base):
         for p in func.parameters:
             if p.is_variable_length():
                 list.append('{0}_size < 0'.format(p.name))
+                list.append('({0}_size > 0 && !{0})'.format(p.name))
 
         if len(list) == 0:
             return