kc3-lang/angle/src/libGLESv2/gen_proc_table.py

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• Author : Geoff Lang
  Date : 2018-01-12 17:17:27
  Hash : 2aaa7b4e
  Message : Add GLES1 targets and stub entry points. * Create a new libGLESv1_CM target. * Merge all autogenerated extension entry points into one file. * Allow creation of ES1 contexts. BUG=angleproject:2306 Change-Id: I446258363a96a3c37d657089dd7c1cff0fa3cf78 Reviewed-on: https://chromium-review.googlesource.com/865718 Commit-Queue: Geoff Lang <geofflang@chromium.org> Reviewed-by: Geoff Lang <geofflang@chromium.org>

• src/libGLESv2/gen_proc_table.py

• #!python
  # Copyright 2017 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_proc_table.py:
  #  Code generation for entry point loading tables.
  
  # TODO(jmadill): Should be part of entry point generation.
  
  import sys
  from datetime import date
  
  data_source_name = "proc_table_data.json"
  out_file_name = "proc_table_autogen.cpp"
  
  template_cpp = """// GENERATED FILE - DO NOT EDIT.
  // Generated by {script_name} using data from {data_source_name}.
  //
  // Copyright {copyright_year} 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.
  //
  // getProcAddress loader table:
  //   Mapping from a string entry point name to function address.
  //
  
  #include "libGLESv2/proc_table.h"
  
  #include "libGLESv2/entry_points_egl.h"
  #include "libGLESv2/entry_points_egl_ext.h"
  #include "libGLESv2/entry_points_gles_1_0_autogen.h"
  #include "libGLESv2/entry_points_gles_2_0_autogen.h"
  #include "libGLESv2/entry_points_gles_2_0_ext.h"
  #include "libGLESv2/entry_points_gles_3_0_autogen.h"
  #include "libGLESv2/entry_points_gles_3_1_autogen.h"
  #include "libGLESv2/entry_points_gles_ext_autogen.h"
  #include "platform/Platform.h"
  
  #define P(FUNC) reinterpret_cast<__eglMustCastToProperFunctionPointerType>(FUNC)
  
  namespace egl
  {{
  ProcEntry g_procTable[] = {{
  {proc_data}
  }};
  
  size_t g_numProcs = {num_procs};
  }}  // namespace egl
  """
  
  sys.path.append('../libANGLE/renderer')
  import angle_format
  
  json_data = angle_format.load_json(data_source_name)
  
  all_functions = {}
  
  for description, functions in json_data.iteritems():
      for function in functions:
          if function.startswith("gl"):
              all_functions[function] = "gl::" + function[2:]
          elif function.startswith("egl"):
              all_functions[function] = "egl::" + function[3:]
          else:
              all_functions[function] = function
  
  proc_data = [('    {"%s", P(%s)}' % (func, angle_func)) for func, angle_func in sorted(all_functions.iteritems())]
  
  with open(out_file_name, 'wb') as out_file:
      output_cpp = template_cpp.format(
          script_name = sys.argv[0],
          data_source_name = data_source_name,
          copyright_year = date.today().year,
          proc_data = ",\n".join(proc_data),
          num_procs = len(proc_data))
      out_file.write(output_cpp)
      out_file.close()