etnaviv: isa: Generate c header containing enums

Signed-off-by: Christian Gmeiner <cgmeiner@igalia.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/28183>

src/etnaviv/isa/enums.h.py

@@ -0,0 +1,58 @@
+#!/usr/bin/env python3
+#
+# Copyright © 2024 Igalia S.L.
+# SPDX-License-Identifier: MIT
+
+template = """/*
+ * Copyright © 2024 Igalia S.L.
+ * SPDX-License-Identifier: MIT
+ */
+
+#pragma once
+
+#include "util/macros.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+% for name, enum in enums.items():
+enum PACKED ${prefix}_${name} {
+% for k, v in enum.items():
+   ${k} = ${v},
+% endfor
+};
+
+% endfor
+
+#ifdef __cplusplus
+} /* extern C */
+#endif
+"""
+
+import sys, os
+sys.path.append(os.path.dirname(os.path.abspath(__file__)) + "/../../compiler/isaspec")
+
+from mako.template import Template
+from isa import ISA
+
+def main():
+    isa = ISA(sys.argv[1])
+    prefix = 'isa'
+    enums = {}
+
+    for name, enum in isa.enums.items():
+        name = name.replace('#', '')
+        e = {}
+
+        for k, v in enum.values.items():
+            v = v.get_name().replace('.', '').replace('[', '').replace(']', '').upper()
+            item = prefix.upper() + '_' + name.upper() + '_' + v
+            e[item] = k
+
+        enums[name] = e
+
+    print(Template(template).render(prefix=prefix, enums=enums))
+
+if __name__ == '__main__':
+    main()

src/etnaviv/isa/meson.build

@@ -47,6 +47,15 @@ idep_libetnaviv_decode = declare_dependency(
   sources : [etnaviv_isa],
 )
 
+enums_h = custom_target(
+  'enums.h',
+  input: ['enums.h.py', 'etnaviv.xml'],
+  output: 'enums.h',
+  command: [prog_python, '@INPUT@'],
+  capture: true,
+  depend_files: isa_depend_files,
+)
+
 disasm = executable(
   'etnaviv-disasm',
   ['disasm.c'],