kc3-lang/angle/scripts/generate_vulkan_layers_json.py

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• Hash : b9d1daa0
  Author :
  Date : 2018-01-04T08:30:26
  

  Add Vulkan mock_icd to the build
  
  Bug: angleproject:2159
  
  Add Vulkan mock_icd from validation layer source to the standard Vulkan
  build. This can act as a NULL driver for Vulkan. Once the mock is built
  set VK_ICD_FILENAMES env variable to
  "<build_out_dir>/angledata/VkICD_mock_icd.json" to point loader to the
  mock driver and make sure the built mock icd library resides in the
  system's shared object search path.
  
  Change-Id: Iea86325cf076df75fa82a4974c8a3a6249cdf8e0
  Reviewed-on: https://chromium-review.googlesource.com/850892
  Commit-Queue: Jamie Madill <jmadill@chromium.org>
  Reviewed-by: Jamie Madill <jmadill@chromium.org>
  Reviewed-by: Yuly Novikov <ynovikov@chromium.org>
  

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• scripts/generate_vulkan_layers_json.py

• #!/usr/bin/python2
  #
  # Copyright 2016 The ANGLE Project Authors. All rights reserved.
  # Use of this source code is governed by a BSD-style license that can be
  # found in the LICENSE file.
  #
  # generate_vulkan_layers_json.py:
  #   Generate copies of the Vulkan layers JSON files, with no paths, forcing
  #   Vulkan to use the default search path to look for layers.
  
  import os, sys, json, glob
  
  if len(sys.argv) != 3:
      print("Usage: " + sys.argv[0] + " <source_dir> <target_dir>")
      sys.exit(1)
  
  source_dir = sys.argv[1]
  target_dir = sys.argv[2]
  
  data_key = 'layer'
  if 'icd' in source_dir:
      data_key = 'ICD'
  
  if not os.path.isdir(source_dir):
      print(source_dir + " is not a directory.")
      sys.exit(1)
  
  if not os.path.exists(target_dir):
      os.makedirs(target_dir)
  
  for json_fname in glob.glob(os.path.join(source_dir, "*.json")):
      with open(json_fname) as infile:
          data = json.load(infile)
  
          # update the path
          if not data_key in data:
              raise Exception("Could not find '" + data_key + "' key in " + 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, "w") as outfile:
              json.dump(data, outfile)
  

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