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#!/usr/bin/env python
# Copyright (C) 2016 The ANGLE Project Authors.
#
# 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
#
# https://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.
"""Generate copies of the Vulkan layers JSON files, with no paths, forcing
Vulkan to use the default search path to look for layers."""
from __future__ import print_function
import argparse
import glob
import json
import os
import platform
import sys
def glob_slash(dirname):
"""Like regular glob but replaces \ with / in returned paths."""
return [s.replace('\\', '/') for s in glob.glob(dirname)]
def main():
parser = argparse.ArgumentParser(description=__doc__)
parser.add_argument('--icd', action='store_true')
parser.add_argument('source_dir')
parser.add_argument('target_dir')
parser.add_argument('version_header', help='path to vulkan_core.h')
parser.add_argument('json_files', nargs='*')
args = parser.parse_args()
source_dir = args.source_dir
target_dir = args.target_dir
json_files = [j for j in args.json_files if j.endswith('.json')]
json_in_files = [j for j in args.json_files if j.endswith('.json.in')]
data_key = 'ICD' if args.icd else 'layer'
if not os.path.isdir(source_dir):
print(source_dir + ' is not a directory.', file=sys.stderr)
return 1
if not os.path.exists(target_dir):
os.makedirs(target_dir)
# Copy the *.json files from source dir to target dir
if (set(glob_slash(os.path.join(source_dir, '*.json'))) != set(json_files)):
print(glob.glob(os.path.join(source_dir, '*.json')))
print('.json list in gn file is out-of-date', file=sys.stderr)
return 1
for json_fname in json_files:
if not json_fname.endswith('.json'):
continue
with open(json_fname) as infile:
data = json.load(infile)
# Update the path.
if not data_key in data:
raise Exception(
"Could not find '%s' key in %s" % (data_key, json_fname))
# The standard validation layer has no library path.
if 'library_path' in data[data_key]:
prev_name = os.path.basename(data[data_key]['library_path'])
data[data_key]['library_path'] = prev_name
target_fname = os.path.join(target_dir, os.path.basename(json_fname))
with open(target_fname, 'wb') as outfile:
json.dump(data, outfile)
# Get the Vulkan version from the vulkan_core.h file
vk_header_filename = args.version_header
vk_version = None
with open(vk_header_filename) as vk_header_file:
for line in vk_header_file:
if line.startswith('#define VK_HEADER_VERSION'):
vk_version = line.split()[-1]
break
if not vk_version:
print('failed to extract vk_version', file=sys.stderr)
return 1
# Set json file prefix and suffix for generating files, default to Linux.
relative_path_prefix = '../lib'
file_type_suffix = '.so'
if platform.system() == 'Windows':
relative_path_prefix = r'..\\' # json-escaped, hence two backslashes.
file_type_suffix = '.dll'
# For each *.json.in template files in source dir generate actual json file
# in target dir
if (set(glob_slash(os.path.join(source_dir, '*.json.in'))) !=
set(json_in_files)):
print('.json.in list in gn file is out-of-date', file=sys.stderr)
return 1
for json_in_name in json_in_files:
if not json_in_name.endswith('.json.in'):
continue
json_in_fname = os.path.basename(json_in_name)
layer_name = json_in_fname[:-len('.json.in')]
layer_lib_name = layer_name + file_type_suffix
json_out_fname = os.path.join(target_dir, json_in_fname[:-len('.in')])
with open(json_out_fname,'w') as json_out_file, \
open(json_in_name) as infile:
for line in infile:
line = line.replace('@RELATIVE_LAYER_BINARY@',
relative_path_prefix + layer_lib_name)
line = line.replace('@VK_VERSION@', '1.1.' + vk_version)
json_out_file.write(line)
if __name__ == '__main__':
sys.exit(main())