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1COPYRIGHT = """\
2/*
3 * Copyright (C) 2017 Intel Corporation
4 *
5 * Permission is hereby granted, free of charge, to any person obtaining a
6 * copy of this software and associated documentation files (the "Software"),
7 * to deal in the Software without restriction, including without limitation
8 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
9 * and/or sell copies of the Software, and to permit persons to whom the
10 * Software is furnished to do so, subject to the following conditions:
11 *
12 * The above copyright notice and this permission notice (including the next
13 * paragraph) shall be included in all copies or substantial portions of the
14 * Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
21 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
22 * DEALINGS IN THE SOFTWARE.
23 */
24"""
25
26import argparse
27import json
28from sys import stdout
29from mako.template import Template
30
31def collect_data(spirv, kind):
32    for x in spirv["operand_kinds"]:
33        if x["kind"] == kind:
34            operands = x
35            break
36
37    # There are some duplicate values in some of the tables (thanks guys!), so
38    # filter them out.
39    last_value = -1
40    values = []
41    for x in operands["enumerants"]:
42        if x["value"] != last_value:
43            last_value = x["value"]
44            values.append(x["enumerant"])
45
46    return (kind, values)
47
48def collect_opcodes(spirv):
49    values = []
50    for x in spirv["instructions"]:
51        name = x["opname"]
52        assert name.startswith("Op")
53        values.append(name[2:])
54
55    return ("Op", values)
56
57def parse_args():
58    p = argparse.ArgumentParser()
59    p.add_argument("json")
60    p.add_argument("out")
61    return p.parse_args()
62
63TEMPLATE  = Template("""\
64/* DO NOT EDIT - This file is generated automatically by spirv_info_c.py script */
65
66""" + COPYRIGHT + """\
67#include "spirv_info.h"
68% for kind,values in info:
69
70const char *
71spirv_${kind.lower()}_to_string(Spv${kind} v)
72{
73   switch (v) {
74    % for name in values:
75   case Spv${kind}${name}: return "Spv${kind}${name}";
76    % endfor
77   case Spv${kind}Max: break; /* silence warnings about unhandled enums. */
78   }
79
80   return "unknown";
81}
82% endfor
83""")
84
85if __name__ == "__main__":
86    pargs = parse_args()
87
88    spirv_info = json.JSONDecoder().decode(open(pargs.json, "r").read())
89
90    info = [
91        collect_data(spirv_info, "Capability"),
92        collect_data(spirv_info, "Decoration"),
93        collect_opcodes(spirv_info),
94    ]
95
96    with open(pargs.out, 'w') as f:
97        f.write(TEMPLATE.render(info=info))
98