Function GetCurrentGlobalHandle

qrenderdoc/Code/pyrenderdoc/PythonContext.cpp:1404–1456

}

extern "C" PyObject *GetCurrentGlobalHandle()
{
  PyObject *frame_global_handle = NULL;

  // walk the frames until we find one with _renderdoc_internal. If we call a function in another
  // module the globals may not have the entry, but the root level is expected to.
  {
    PyFrameObject *frame = PyEval_GetFrame();
    // inc reference count here so all frames can be decref'd whether they come from here or
    // PyFrame_GetBack
    Py_XINCREF(frame);

    while(frame)
    {
      PyObject *globals = PyFrame_GetGlobals(frame);
      frame_global_handle = PyDict_GetItemString(globals, "_renderdoc_internal");
      Py_XDECREF(globals);

      // first get the next frame without decrefing the current
      PyFrameObject *back = PyFrame_GetBack(frame);
      // now decref the old frame
      Py_XDECREF(frame);
      // and iterate on the next one, if we got one
      frame = back;

      if(frame_global_handle)
      {
        // release the last trailing ref, which we know is either NULL or a strong reference from
        // PyFrame_GetBack
        Py_XDECREF(frame);
        break;
      }
    }
  }

  if(frame_global_handle)
    return frame_global_handle;

  if(current_global_handle)
    return current_global_handle;

  PyObject *sys = PyImport_ImportModule("sys");
  if(sys)
  {
    PyObject *ret = PyObject_SafeGetAttrString(sys, "_renderdoc_internal");

    Py_XDECREF(sys);
    Py_XDECREF(ret);
    return ret;
  }

  return NULL;
}

extern "C" void HandleException(PyObject *global_handle)
{