Panda3D

transformTable.h

00001 // Filename: transformTable.h
00002 // Created by:  drose (23Mar05)
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 TRANSFORMTABLE_H
00016 #define TRANSFORMTABLE_H
00017 
00018 #include "pandabase.h"
00019 #include "vertexTransform.h"
00020 #include "typedWritableReferenceCount.h"
00021 #include "pointerTo.h"
00022 #include "luse.h"
00023 #include "pvector.h"
00024 #include "cycleData.h"
00025 #include "cycleDataReader.h"
00026 #include "cycleDataWriter.h"
00027 #include "pipelineCycler.h"
00028 
00029 class FactoryParams;
00030 
00031 ////////////////////////////////////////////////////////////////////
00032 //       Class : TransformTable
00033 // Description : Stores the total set of VertexTransforms that the
00034 //               vertices in a particular GeomVertexData object might
00035 //               depend on.
00036 //
00037 //               This structure is used for a GeomVertexData set up to
00038 //               compute its dynamic vertices on the graphics card.
00039 //               See TransformBlendTable for one set up to compute
00040 //               its dynamic vertices on the CPU.
00041 ////////////////////////////////////////////////////////////////////
00042 class EXPCL_PANDA_GOBJ TransformTable : public TypedWritableReferenceCount {
00043 PUBLISHED:
00044   TransformTable();
00045   TransformTable(const TransformTable &copy);
00046   void operator = (const TransformTable &copy);
00047   virtual ~TransformTable();
00048 
00049   INLINE bool is_registered() const;
00050   INLINE static CPT(TransformTable) register_table(const TransformTable *table);
00051 
00052   INLINE int get_num_transforms() const;
00053   INLINE const VertexTransform *get_transform(int n) const;
00054   MAKE_SEQ(get_transforms, get_num_transforms, get_transform);
00055   INLINE UpdateSeq get_modified(Thread *current_thread) const;
00056 
00057   void set_transform(int n, const VertexTransform *transform);
00058   void remove_transform(int n);
00059   int add_transform(const VertexTransform *transform);
00060 
00061   void write(ostream &out) const;
00062 
00063 private:
00064   void do_register();
00065   void do_unregister();
00066   INLINE void update_modified(UpdateSeq modified, Thread *current_thread);
00067 
00068 private:
00069   bool _is_registered;
00070 
00071   typedef pvector< CPT(VertexTransform) > Transforms;
00072   Transforms _transforms;
00073 
00074   // This is the data that must be cycled between pipeline stages.
00075   class EXPCL_PANDA_GOBJ CData : public CycleData {
00076   public:
00077     INLINE CData();
00078     INLINE CData(const CData &copy);
00079     virtual CycleData *make_copy() const;
00080     virtual void write_datagram(BamWriter *manager, Datagram &dg) const;
00081     virtual void fillin(DatagramIterator &scan, BamReader *manager);
00082     virtual TypeHandle get_parent_type() const {
00083       return TransformTable::get_class_type();
00084     }
00085 
00086     UpdateSeq _modified;
00087   };
00088 
00089   PipelineCycler<CData> _cycler;
00090   typedef CycleDataReader<CData> CDReader;
00091   typedef CycleDataWriter<CData> CDWriter;
00092 
00093 public:
00094   static void register_with_read_factory();
00095   virtual void write_datagram(BamWriter *manager, Datagram &dg);
00096   virtual int complete_pointers(TypedWritable **plist, BamReader *manager);
00097 
00098 protected:
00099   static TypedWritable *make_from_bam(const FactoryParams &params);
00100   void fillin(DatagramIterator &scan, BamReader *manager);
00101 
00102 public:
00103   static TypeHandle get_class_type() {
00104     return _type_handle;
00105   }
00106   static void init_type() {
00107     TypedWritableReferenceCount::init_type();
00108     register_type(_type_handle, "TransformTable",
00109                   TypedWritableReferenceCount::get_class_type());
00110   }
00111   virtual TypeHandle get_type() const {
00112     return get_class_type();
00113   }
00114   virtual TypeHandle force_init_type() {init_type(); return get_class_type();}
00115 
00116 private:
00117   static TypeHandle _type_handle;
00118 
00119   friend class VertexTransform;
00120 };
00121 
00122 INLINE ostream &operator << (ostream &out, const TransformTable &obj);
00123 
00124 #include "transformTable.I"
00125 
00126 #endif
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