kc3-lang/angle/scripts/gen_interpreter_utils.py

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• Author : Jamie Madill
  Date : 2022-10-10 21:00:16
  Hash : dc62b3ee
  Message : Capture/Replay: Add trace interpreter. Also adds a self-test using the retrace script. Bug: angleproject:7752 Change-Id: I1985b47250bef99726d2ca2d90bef859208e357e Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/3965128 Reviewed-by: Cody Northrop <cnorthrop@google.com> Commit-Queue: Jamie Madill <jmadill@chromium.org> Reviewed-by: Yuxin Hu <yuxinhu@google.com>

• scripts/gen_interpreter_utils.py

• #!/usr/bin/python3
  #
  # Copyright 2022 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.
  #
  # gen_interpreter_utils.py:
  #   Code generator for the GLC interpreter.
  #   NOTE: don't run this script directly. Run scripts/run_code_generation.py.
  
  import sys
  import os
  
  import registry_xml
  
  EXIT_SUCCESS = 0
  EXIT_FAILURE = 1
  
  BASE_PATH = '../util/capture/trace_interpreter_autogen'
  
  CPP_TEMPLATE = """\
  // GENERATED FILE - DO NOT EDIT.
  // Generated by {script_name} using data from {data_source_name}.
  //
  // Copyright 2022 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.
  //
  // {file_name}.cpp:
  //   Helper code for trace interpreter.
  
  #include "angle_trace_gl.h"
  #include "trace_fixture.h"
  #include "trace_interpreter.h"
  
  namespace angle
  {{
  CallCapture ParseCallCapture(const Token &nameToken, size_t numParamTokens, const Token *paramTokens, const TraceShaderMap &shaders)
  {{
  {cases}
      ASSERT(numParamTokens == 0);
      return CallCapture(nameToken, ParamBuffer());
  }}
  }}  // namespace angle
  """
  
  CASE = """\
      if (strcmp(nameToken, "{ep}") == 0)
      {{
          ParamBuffer params = ParseParameters<{pfn}>(paramTokens, shaders);
          return CallCapture({call}, std::move(params));
      }}
  """
  
  FIXTURE_H = '../util/capture/trace_fixture.h'
  
  
  def GetFunctionsFromFixture():
      funcs = []
      pattern = 'void '
      with open(FIXTURE_H) as f:
          lines = f.read().split('\n')
          for line in lines:
              if line.startswith(pattern):
                  funcs.append(line[len(pattern):line.find('(')])
          f.close()
      return sorted(funcs)
  
  
  def main(cpp_output_path):
      gles = registry_xml.GetGLES()
      egl = registry_xml.GetEGL()
  
      def fn(ep):
          return 'std::remove_pointer<PFN%sPROC>::type' % ep.upper()
  
      eps_and_enums = sorted(list(set(gles.GetEnums() + egl.GetEnums())))
      cases = [
          CASE.format(ep=ep, pfn=fn(ep), call='EntryPoint::%s' % enum)
          for (enum, ep) in eps_and_enums
      ]
      cases += [
          CASE.format(ep=func, pfn='decltype(%s)' % func, call='"%s"' % func)
          for func in GetFunctionsFromFixture()
      ]
  
      format_args = {
          'script_name': os.path.basename(sys.argv[0]),
          'data_source_name': 'gl.xml and gl_angle_ext.xml',
          'file_name': os.path.basename(BASE_PATH),
          'cases': ''.join(cases),
      }
  
      cpp_content = CPP_TEMPLATE.format(**format_args)
      cpp_output_path = registry_xml.script_relative(cpp_output_path)
      with open(cpp_output_path, 'w') as f:
          f.write(cpp_content)
  
      return EXIT_SUCCESS
  
  
  if __name__ == '__main__':
      inputs = registry_xml.khronos_xml_inputs + [FIXTURE_H]
      outputs = [
          '%s.cpp' % BASE_PATH,
      ]
  
      if len(sys.argv) > 1:
          if sys.argv[1] == 'inputs':
              print(','.join(inputs))
          elif sys.argv[1] == 'outputs':
              print(','.join(outputs))
      else:
          sys.exit(main(registry_xml.script_relative(outputs[0])))