kc3-lang/angle/scripts/gen_proc_table.py

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• Hash : 4f7f4387
  Author :
  Date : 2020-07-24T11:44:02
  

  Add entry points for OES/EXT_texture_buffer
  
  This extension is core in 3.2
  
  Bug: angleproject:3573
  Change-Id: If08736759da2fdc680cfa396d354dbfa97d1a60f
  Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2317040
  Commit-Queue: Jonah Ryan-Davis <jonahr@google.com>
  Reviewed-by: Tim Van Patten <timvp@google.com>
  Reviewed-by: Jamie Madill <jmadill@chromium.org>
  

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• scripts/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.
  #  NOTE: don't run this script directly. Run scripts/run_code_generation.py.
  
  import sys
  from datetime import date
  import registry_xml
  
  out_file_name_gles = "../src/libGLESv2/proc_table_egl_autogen.cpp"
  out_file_name_gl = "../src/libGL/proc_table_wgl_autogen.cpp"
  
  # The EGL_ANGLE_explicit_context extension is generated differently from other extensions.
  # Toggle generation here.
  # Only for GLES
  support_egl_ANGLE_explicit_context = True
  
  strip_suffixes = ["ANGLE", "EXT", "KHR", "OES", "CHROMIUM", "OVR"]
  
  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.
  //
  
  {includes}
  #define P(FUNC) reinterpret_cast<{cast}>(FUNC)
  
  namespace {namespace}
  {{
  const ProcEntry g_procTable[] = {{
  {proc_data}
  }};
  
  const size_t g_numProcs = {num_procs};
  }}  // namespace {namespace}
  """
  
  includes_gles = """#include "libGLESv2/proc_table_egl.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_3_2_autogen.h"
  #include "libGLESv2/entry_points_gles_ext_autogen.h"
  #include "platform/PlatformMethods.h"
  """
  
  includes_gl = """#include "libGL/proc_table_wgl.h"
  
  #include "libGL/entry_points_wgl.h"
  #include "libGL/entry_points_gl_1_0_autogen.h"
  #include "libGL/entry_points_gl_1_1_autogen.h"
  #include "libGL/entry_points_gl_1_2_autogen.h"
  #include "libGL/entry_points_gl_1_3_autogen.h"
  #include "libGL/entry_points_gl_1_4_autogen.h"
  #include "libGL/entry_points_gl_1_5_autogen.h"
  #include "libGL/entry_points_gl_2_0_autogen.h"
  #include "libGL/entry_points_gl_2_1_autogen.h"
  #include "libGL/entry_points_gl_3_0_autogen.h"
  #include "libGL/entry_points_gl_3_1_autogen.h"
  #include "libGL/entry_points_gl_3_2_autogen.h"
  #include "libGL/entry_points_gl_3_3_autogen.h"
  #include "libGL/entry_points_gl_4_0_autogen.h"
  #include "libGL/entry_points_gl_4_1_autogen.h"
  #include "libGL/entry_points_gl_4_2_autogen.h"
  #include "libGL/entry_points_gl_4_3_autogen.h"
  #include "libGL/entry_points_gl_4_4_autogen.h"
  #include "libGL/entry_points_gl_4_5_autogen.h"
  #include "libGL/entry_points_gl_4_6_autogen.h"
  #include "platform/PlatformMethods.h"
  """
  
  sys.path.append('../src/libANGLE/renderer')
  import angle_format
  
  
  def main():
  
      # auto_script parameters.
      if len(sys.argv) > 1:
          inputs = [source for source in registry_xml.xml_inputs]
          outputs = [out_file_name_gles, out_file_name_gl]
          if sys.argv[1] == 'inputs':
              print ','.join(inputs)
          elif sys.argv[1] == 'outputs':
              print ','.join(outputs)
          else:
              print('Invalid script parameters')
              return 1
          return 0
  
      glesxml = registry_xml.RegistryXML('gl.xml', 'gl_angle_ext.xml')
  
      for annotation in ["2_0", "3_0", "3_1", "3_2", "1_0"]:
  
          name_prefix = "GL_ES_VERSION_"
          if annotation[0] == '1':
              name_prefix = "GL_VERSION_ES_CM_"
          feature_name = "{}{}".format(name_prefix, annotation)
          glesxml.AddCommands(feature_name, annotation)
  
      glesxml.AddExtensionCommands(registry_xml.supported_extensions, ['gles2', 'gles1'])
  
      # Also don't add GLES extension commands to libGL proc table
      extension_commands = []
      for extension_name, ext_cmd_names in sorted(glesxml.ext_data.iteritems()):
          extension_commands.extend(glesxml.ext_data[extension_name])
      for name in extension_commands:
          name_no_suffix = name
          for suffix in strip_suffixes:
              if name_no_suffix.endswith(suffix):
                  name_no_suffix = name_no_suffix[0:-len(suffix)]
  
      gles_data = glesxml.all_cmd_names.get_all_commands()
  
      eglxml = registry_xml.RegistryXML('egl.xml', 'egl_angle_ext.xml')
  
      for annotation in ["1_0", "1_1", "1_2", "1_3", "1_4", "1_5"]:
  
          name_prefix = "EGL_VERSION_"
          feature_name = "{}{}".format(name_prefix, annotation)
          eglxml.AddCommands(feature_name, annotation)
  
      eglxml.AddExtensionCommands(registry_xml.supported_egl_extensions, ['gles2', 'gles1'])
  
      gles_data.extend(eglxml.all_cmd_names.get_all_commands())
  
      gles_data.append("ANGLEGetDisplayPlatform")
      gles_data.append("ANGLEResetDisplayPlatform")
  
      all_functions = {}
  
      for function in gles_data:
          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_gles, 'w') as out_file:
          output_cpp = template_cpp.format(
              script_name=sys.argv[0],
              data_source_name="gl.xml, gl_angle_ext.xml, egl.xml, egl_angle_ext.xml",
              copyright_year=date.today().year,
              includes=includes_gles,
              cast="__eglMustCastToProperFunctionPointerType",
              namespace="egl",
              proc_data=",\n".join(proc_data),
              num_procs=len(proc_data))
          out_file.write(output_cpp)
          out_file.close()
  
      # libGL proc table
      glxml = registry_xml.RegistryXML('gl.xml')
  
      for annotation in [
              "1_0", "1_1", "1_2", "1_3", "1_4", "1_5", "2_0", "2_1", "3_0", "3_1", "3_2", "3_3",
              "4_0", "4_1", "4_2", "4_3", "4_4", "4_5", "4_6"
      ]:
  
          name_prefix = "GL_VERSION_"
          feature_name = "{}{}".format(name_prefix, annotation)
          glxml.AddCommands(feature_name, annotation)
  
      gl_data = [cmd for cmd in glxml.all_cmd_names.get_all_commands()]
  
      wglxml = registry_xml.RegistryXML('wgl.xml')
  
      for annotation in ["1_0"]:
  
          name_prefix = "WGL_VERSION_"
          feature_name = "{}{}".format(name_prefix, annotation)
          wglxml.AddCommands(feature_name, annotation)
  
      gl_commands = wglxml.all_cmd_names.get_all_commands()
      gl_data.extend([cmd if cmd[:3] == 'wgl' else 'wgl' + cmd for cmd in gl_commands])
  
      all_functions = {}
  
      for function in gl_data:
          if function.startswith("gl"):
              all_functions[function] = "gl::" + function[2:]
          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_gl, 'w') as out_file:
          output_cpp = template_cpp.format(
              script_name=sys.argv[0],
              data_source_name="gl.xml, wgl.xml",
              copyright_year=date.today().year,
              includes=includes_gl,
              cast="PROC",
              namespace="wgl",
              proc_data=",\n".join(proc_data),
              num_procs=len(proc_data))
          out_file.write(output_cpp)
          out_file.close()
      return 0
  
  
  if __name__ == '__main__':
      sys.exit(main())
  

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