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#!/usr/bin/env python
# Copyright (c) 2016 Google Inc.
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""Generates the vendor tool table from the SPIR-V XML registry."""
import errno
import os.path
import xml.etree.ElementTree
def mkdir_p(directory):
"""Make the directory, and all its ancestors as required. Any of the
directories are allowed to already exist.
This is compatible with Python down to 3.0.
"""
if directory == "":
# We're being asked to make the current directory.
return
try:
os.makedirs(directory)
except OSError as e:
if e.errno == errno.EEXIST and os.path.isdir(directory):
pass
else:
raise
def generate_vendor_table(registry):
"""Returns a list of C style initializers for the registered vendors
and their tools.
Args:
registry: The SPIR-V XMLregistry as an xml.ElementTree
"""
lines = []
for ids in registry.iter('ids'):
if 'vendor' == ids.attrib['type']:
for an_id in ids.iter('id'):
value = an_id.attrib['value']
vendor = an_id.attrib['vendor']
if 'tool' in an_id.attrib:
tool = an_id.attrib['tool']
vendor_tool = vendor + ' ' + tool
else:
tool = ''
vendor_tool = vendor
line = '{' + '{}, "{}", "{}", "{}"'.format(value,
vendor,
tool,
vendor_tool) + '},'
lines.append(line)
return '\n'.join(lines)
def main():
import argparse
parser = argparse.ArgumentParser(description=
'Generate tables from SPIR-V XML registry')
parser.add_argument('--xml', metavar='<path>',
type=str, required=True,
help='SPIR-V XML Registry file')
parser.add_argument('--generator-output', metavar='<path>',
type=str, required=True,
help='output file for SPIR-V generators table')
args = parser.parse_args()
with open(args.xml) as xml_in:
registry = xml.etree.ElementTree.fromstring(xml_in.read())
mkdir_p(os.path.dirname(args.generator_output))
with open(args.generator_output, 'w') as f:
f.write(generate_vendor_table(registry))
if __name__ == '__main__':
main()
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