1 files changed, 52 insertions, 0 deletions
diff --git a/misc/update-vulkan-gir.py b/misc/update-vulkan-gir.py
new file mode 100644
index 00000000..89792c12
--- /dev/null
+++ b/misc/update-vulkan-gir.py
@@ -0,0 +1,52 @@
+#!/usr/bin/env python3
+
+# Example invocation
+# cd /path/to/gobject-introspection
+# python3 misc/update-vulkan-gir.py -i /usr/include/vulkan/vulkan.h -o gir/Vulkan-1.0.gir --extra-cpp-args='-I/path/to/pycparser/utils/fake_libc_include/'
+
+import sys
+import argparse
+
+from pycparser import c_parser, c_ast, parse_file
+
+class TypedefVisitor(c_ast.NodeVisitor):
+    def __init__ (self, f):
+        super().__init__()
+        self.f = f
+
+    def visit_Typedef(self, node):
+        if node.name.startswith("Vk"):
+            self.f.write("<record name=\"" + str(node.name)[2:] + "\" c:type=\"" + str(node.name) + "\"/>\n")
+
+def show_func_defs(filename, output, extra_cpp_args=None):
+    # Note that cpp is used. Provide a path to your own cpp or
+    # make sure one exists in PATH.
+    ast = parse_file(filename, use_cpp=True,
+                     cpp_args=extra_cpp_args)
+
+    with open(output, 'w') as f:
+        f.write("""<?xml version="1.0"?>
+<repository version="1.2"
+            xmlns="http://www.gtk.org/introspection/core/1.0"
+            xmlns:c="http://www.gtk.org/introspection/c/1.0">
+  <namespace name="Vulkan" version="1.0"
+	     c:identifier-prefixes="VK"
+	     c:symbol-prefixes="vk">
+""")
+        v = TypedefVisitor(f)
+        v.visit(ast)
+        f.write("""
+  </namespace>
+</repository>
+""")
+
+if __name__ == "__main__":
+    parser = argparse.ArgumentParser(description="Parse Vulkan header files to produce Vulkan-1.0.gir")
+    parser.add_argument('-i', '--input', type=str,
+        help='The input vulkan header to process')
+    parser.add_argument('--extra-cpp-args', type=str, default=None,
+        help='Extra arguments to parse to the C Preprocesser.  e.g. the location pycparser\'s fake libc includes')
+    parser.add_argument('-o', '--output', type=str, default='Vulkan-1.0.gir',
+        help='The output Vulkan-1.0.gir location')
+    args = parser.parse_args(sys.argv[1:])
+    show_func_defs(args.input, args.output, args.extra_cpp_args)