src/compiler/spirv/spirv_info_c.py

   1 COPYRIGHT = """\
   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
  26 import argparse
  27 import json
  28 from sys import stdout
  29 from mako.template import Template
  30
  31 def 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
  48 def 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
  57 def parse_args():
  58     p = argparse.ArgumentParser()
  59     p.add_argument("json")
  60     p.add_argument("out")
  61     return p.parse_args()
  62
  63 TEMPLATE  = 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
  70 const char *
  71 spirv_${kind.lower()}_to_string(Spv${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
  85 if __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_data(spirv_info, "ExecutionMode"),
  94         collect_opcodes(spirv_info),
  95     ]
  96
  97     with open(pargs.out, 'w') as f:
  98         f.write(TEMPLATE.render(info=info))