Panda3D

cullResult.h

00001 // Filename: cullResult.h
00002 // Created by:  drose (27Feb02)
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 #ifndef CULLRESULT_H
00016 #define CULLRESULT_H
00017 
00018 #include "pandabase.h"
00019 #include "cullBin.h"
00020 #include "renderState.h"
00021 #include "cullableObject.h"
00022 #include "geomMunger.h"
00023 #include "referenceCount.h"
00024 #include "pointerTo.h"
00025 #include "pvector.h"
00026 #include "pset.h"
00027 #include "pmap.h"
00028 
00029 
00030 class GraphicsStateGuardianBase;
00031 class CullTraverser;
00032 class TransformState;
00033 class RenderState;
00034 class SceneSetup;
00035 
00036 ////////////////////////////////////////////////////////////////////
00037 //       Class : CullResult
00038 // Description : This stores the result of a BinCullHandler traversal:
00039 //               an ordered collection of CullBins, each of which
00040 //               holds a number of Geoms and RenderStates to be
00041 //               rendered in some defined order.
00042 //
00043 //               This is also used to keep the results of last frame's
00044 //               cull traversal around to make next frame's traversal
00045 //               of the same scene a little easier.
00046 ////////////////////////////////////////////////////////////////////
00047 class EXPCL_PANDA_PGRAPH CullResult : public ReferenceCount {
00048 public:
00049   CullResult(GraphicsStateGuardianBase *gsg,
00050              const PStatCollector &draw_region_pcollector);
00051   INLINE ~CullResult();
00052 
00053 PUBLISHED:
00054   PT(CullResult) make_next() const;
00055 
00056   INLINE CullBin *get_bin(int bin_index);
00057 
00058   void add_object(CullableObject *object, const CullTraverser *traverser);
00059   void finish_cull(SceneSetup *scene_setup, Thread *current_thread);
00060   void draw(Thread *current_thread);
00061 
00062   PT(PandaNode) make_result_graph();
00063 
00064 public:
00065   static void bin_removed(int bin_index);
00066 
00067 private:
00068   CullBin *make_new_bin(int bin_index);
00069   void check_flash_bin(CPT(RenderState) &state, CullBin *bin);
00070   void check_flash_transparency(CPT(RenderState) &state, const LColor &color);
00071 
00072   static CPT(RenderState) get_alpha_state();
00073   static CPT(RenderState) get_binary_state();
00074   static CPT(RenderState) get_dual_transparent_state();
00075   static CPT(RenderState) get_dual_transparent_state_decals();
00076   static CPT(RenderState) get_dual_opaque_state();
00077 
00078   GraphicsStateGuardianBase *_gsg;
00079   PStatCollector _draw_region_pcollector;
00080   
00081   typedef pvector< PT(CullBin) > Bins;
00082   Bins _bins;
00083 
00084 public:
00085   static TypeHandle get_class_type() {
00086     return _type_handle;
00087   }
00088   static void init_type() {
00089     ReferenceCount::init_type();
00090     register_type(_type_handle, "CullResult",
00091                   ReferenceCount::get_class_type());
00092   }
00093   
00094 private:
00095   static TypeHandle _type_handle;
00096 };
00097 
00098 #include "cullResult.I"
00099 
00100 #endif
00101 
00102 
00103   
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