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

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• Hash : 2b0cdcc1
  Author :
  Date : 2018-05-02T08:02:50
  

  Implement EGL_ANGLE_explicit_context
  
  Implementation of EGL_ANGLE_explicit_context. Includes new libGLESv2 entry
  points and exports, libANGLE entry points, extension declarations for
  eglGetProcAddress, and unit tests. Autogeneration scripts have been
  modified to produce entry points, exports, eglGetProcAddress function
  table, extension function pointers, and function declarations.
  
  Bug:angleproject:1395
  Change-Id: I1b79c6069bbed05beb4700a32139a64ddc465c4c
  Reviewed-on: https://chromium-review.googlesource.com/1039865
  Reviewed-by: Jamie Madill <jmadill@chromium.org>
  Commit-Queue: Geoff Lang <geofflang@chromium.org>
  

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• 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"
  
  # The EGL_ANGLE_explicit_context extension is generated differently from other extensions.
  # Toggle generation here.
  support_egl_ANGLE_explicit_context = True
  
  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_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:]
              # Special handling for EGL_ANGLE_explicit_context extension
              if support_egl_ANGLE_explicit_context:
                  all_functions[function + "ContextANGLE"] = "gl::" + function[2:] + "ContextANGLE"
          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()

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