Method outstream_write

qrenderdoc/Code/pyrenderdoc/PythonContext.cpp:1270–1356

}

PyObject *PythonContext::outstream_write(PyObject *self, PyObject *args)
{
  const char *text = NULL;

  if(!PyArg_ParseTuple(args, "z:write", &text))
    return NULL;

  if(PyErr_Occurred())
    return NULL;

  OutputRedirector *redirector = (OutputRedirector *)self;

  if(redirector)
  {
    PythonContext *context = redirector->context;
    // most likely this is NULL because the sys.stdout override is static and shared amongst
    // contexts. So look up the global variable that stores the context
    if(context == NULL)
    {
      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);
        if(globals)
        {
          OutputRedirector *global =
              (OutputRedirector *)PyDict_GetItemString(globals, "_renderdoc_internal");
          if(global)
            context = global->context;
        }

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

    if(context)
    {
      context->addText(redirector->isStdError ? true : false, QString::fromUtf8(text));
    }