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displayRegionCullCallbackData.cxx
00001 // Filename: displayRegionCullCallbackData.cxx
00002 // Created by:  drose (14Mar09)
00003 //
00004 ////////////////////////////////////////////////////////////////////
00005 //
00006 // PANDA 3D SOFTWARE
00007 // Copyright (c) Carnegie Mellon University.  All rights reserved.
00008 //
00009 // All use of this software is subject to the terms of the revised BSD
00010 // license.  You should have received a copy of this license along
00011 // with this source code in a file named "LICENSE."
00012 //
00013 ////////////////////////////////////////////////////////////////////
00014 
00015 #include "displayRegionCullCallbackData.h"
00016 #include "cullHandler.h"
00017 #include "sceneSetup.h"
00018 #include "graphicsEngine.h"
00019 
00020 TypeHandle DisplayRegionCullCallbackData::_type_handle;
00021 
00022 
00023 ////////////////////////////////////////////////////////////////////
00024 //     Function: DisplayRegionCullCallbackData::Constructor
00025 //       Access: Public
00026 //  Description:
00027 ////////////////////////////////////////////////////////////////////
00028 DisplayRegionCullCallbackData::
00029 DisplayRegionCullCallbackData(CullHandler *cull_handler, SceneSetup *scene_setup) :
00030   _cull_handler(cull_handler),
00031   _scene_setup(scene_setup)
00032 {
00033 }
00034 
00035 ////////////////////////////////////////////////////////////////////
00036 //     Function: DisplayRegionCullCallbackData::output
00037 //       Access: Published, Virtual
00038 //  Description:
00039 ////////////////////////////////////////////////////////////////////
00040 void DisplayRegionCullCallbackData::
00041 output(ostream &out) const {
00042   out << get_type() << "(" << (void *)_cull_handler << ", " 
00043       << (void *)_scene_setup << ")";
00044 }
00045 
00046 ////////////////////////////////////////////////////////////////////
00047 //     Function: DisplayRegionCullCallbackData::upcall
00048 //       Access: Published, Virtual
00049 //  Description: You should make this call during the callback if you
00050 //               want to continue the normal rendering function that
00051 //               would have been done in the absence of a callback.
00052 //
00053 //               Specifically, this method will perform the cull
00054 //               traversal for the DisplayRegion's scene graph, and
00055 //               add all renderable objects to its CullResult.
00056 ////////////////////////////////////////////////////////////////////
00057 void DisplayRegionCullCallbackData::
00058 upcall() {
00059   Thread *current_thread = Thread::get_current_thread();
00060   DisplayRegion *dr = _scene_setup->get_display_region();
00061   GraphicsStateGuardian *gsg = dr->get_window()->get_gsg();
00062 
00063   dr->do_cull(_cull_handler, _scene_setup, gsg, current_thread);
00064 }
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