vulkan: Add support for including aliased entrypoints

Author: cmarcelo

bin/gen_enum_to_str.py

@@ -120,6 +120,10 @@
     #endif
             % else:
         table->${cmd.name[2:]} = (PFN_${cmd.name}) gpa(instance, "${cmd.name}");
+                % for alias in cmd.aliases:
+        if (table->${cmd.name[2:]} == NULL)
+            table->${cmd.name[2:]} = (PFN_${cmd.name}) gpa(instance, "${alias}");
+                % endfor
             % endif
         % endif
     %endfor
@@ -139,6 +143,10 @@
     #endif
             % else:
         table->${cmd.name[2:]} = (PFN_${cmd.name}) gpa(device, "${cmd.name}");
+                % for alias in cmd.aliases:
+        if (table->${cmd.name[2:]} == NULL)
+            table->${cmd.name[2:]} = (PFN_${cmd.name}) gpa(instance, "${alias}");
+                % endfor
             % endif
         % endif
     %endfor
@@ -320,6 +328,7 @@ def __init__(self, name, device_entrypoint=False):
         self.name = name
         self.device_entrypoint = device_entrypoint
         self.extension = None
+        self.aliases = []
 
 
 class VkChainStruct(object):
@@ -362,11 +371,22 @@ def parse_xml(cmd_factory, enum_factory, ext_factory, struct_factory, filename):
         if name is not None and "ANDROID" in name.text:
             continue
         first_arg = command.find('./param/type')
-        # Some commands are alias KHR -> nonKHR, ignore those
+        # Some commands are alias KHR -> nonKHR, process those later.
         if name is not None:
             cmd_factory(name.text,
                         device_entrypoint=(first_arg.text in ('VkDevice', 'VkCommandBuffer', 'VkQueue')))
 
+    ALLOWED_COMMAND_ALIASES = [
+    ]
+    for command in xml.findall('./commands/command'):
+        if 'alias' not in command.attrib:
+            continue
+        alias = command.attrib['alias']
+        name = command.attrib['name']
+        if name not in ALLOWED_COMMAND_ALIASES:
+            continue
+        cmd_factory.get(alias).aliases.append(name)
+
     for struct_type in xml.findall('./types/type[@category="struct"]'):
         name = struct_type.attrib['name']
         if name is not None and "ANDROID" in name: