Fix ON_DEMAND_RENDER mode on Mac OSX....

core/cross/client.cc

 /*
  * Copyright 2009, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
@@ skipping 368 matching lines @@
   if (have_offscreen_surfaces) {
     renderer_->SetRenderSurfaces(NULL, NULL, false);
     renderer_->FinishRendering();
   }
 }
 
 bool Client::IsRendering() {
   return (renderer_.IsAvailable() && renderer_->rendering());
 }
 
+bool Client::NeedsRender() {
+  return NeedsContinuousRender() || renderer_->need_to_render();
+}
+
 bool Client::NeedsContinuousRender() {
   bool needRender = false;
   // Only may happen in RENDERMODE_CONTINUOUS mode.
   if (render_mode() == RENDERMODE_CONTINUOUS) {
     // Always need a draw in normal RENDERMODE_CONTINUOUS mode.
     needRender = true;
 
     if (renderer_.IsAvailable()) {
       // If max_fps has been set, only need a draw when "long time no draw".
       int max_fps = renderer_->max_fps();
@@ skipping 250 matching lines @@
 }
 
 String Client::ProfileToString() {
   StringWriter string_writer(StringWriter::LF);
   JsonWriter json_writer(&string_writer, 2);
   profiler_->Write(&json_writer);
   json_writer.Close();
   return string_writer.ToString();
 }
 }  // namespace o3d