Panda3D
transformTable.h
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1 /**
2  * PANDA 3D SOFTWARE
3  * Copyright (c) Carnegie Mellon University. All rights reserved.
4  *
5  * All use of this software is subject to the terms of the revised BSD
6  * license. You should have received a copy of this license along
7  * with this source code in a file named "LICENSE."
8  *
9  * @file transformTable.h
10  * @author drose
11  * @date 2005-03-23
12  */
13 
14 #ifndef TRANSFORMTABLE_H
15 #define TRANSFORMTABLE_H
16 
17 #include "pandabase.h"
18 #include "vertexTransform.h"
20 #include "pointerTo.h"
21 #include "luse.h"
22 #include "pvector.h"
23 #include "cycleData.h"
24 #include "cycleDataReader.h"
25 #include "cycleDataWriter.h"
26 #include "pipelineCycler.h"
27 
28 class FactoryParams;
29 
30 /**
31  * Stores the total set of VertexTransforms that the vertices in a particular
32  * GeomVertexData object might depend on.
33  *
34  * This structure is used for a GeomVertexData set up to compute its dynamic
35  * vertices on the graphics card. See TransformBlendTable for one set up to
36  * compute its dynamic vertices on the CPU.
37  */
38 class EXPCL_PANDA_GOBJ TransformTable : public TypedWritableReferenceCount {
39 PUBLISHED:
41  TransformTable(const TransformTable &copy);
42  void operator = (const TransformTable &copy);
43  virtual ~TransformTable();
44 
45  INLINE bool is_registered() const;
46  INLINE static CPT(TransformTable) register_table(const TransformTable *table);
47 
48  INLINE size_t get_num_transforms() const;
49  INLINE const VertexTransform *get_transform(size_t n) const;
50  MAKE_SEQ(get_transforms, get_num_transforms, get_transform);
51  INLINE UpdateSeq get_modified(Thread *current_thread = Thread::get_current_thread()) const;
52 
53  void set_transform(size_t n, const VertexTransform *transform);
54  void insert_transform(size_t n, const VertexTransform *transform);
55  void remove_transform(size_t n);
56  size_t add_transform(const VertexTransform *transform);
57 
58  void write(std::ostream &out) const;
59 
60  MAKE_PROPERTY(registered, is_registered);
61  MAKE_PROPERTY(modified, get_modified);
62  MAKE_SEQ_PROPERTY(transforms, get_num_transforms, get_transform, set_transform,
63  remove_transform, insert_transform);
64 
65 private:
66  void do_register();
67  void do_unregister();
68  INLINE void update_modified(UpdateSeq modified, Thread *current_thread);
69 
70 private:
71  bool _is_registered;
72 
73  typedef pvector< CPT(VertexTransform) > Transforms;
74  Transforms _transforms;
75 
76  // This is the data that must be cycled between pipeline stages.
77  class EXPCL_PANDA_GOBJ CData : public CycleData {
78  public:
79  INLINE CData();
80  INLINE CData(const CData &copy);
81  virtual CycleData *make_copy() const;
82  virtual void write_datagram(BamWriter *manager, Datagram &dg) const;
83  virtual void fillin(DatagramIterator &scan, BamReader *manager);
84  virtual TypeHandle get_parent_type() const {
85  return TransformTable::get_class_type();
86  }
87 
88  UpdateSeq _modified;
89  };
90 
91  PipelineCycler<CData> _cycler;
92  typedef CycleDataReader<CData> CDReader;
93  typedef CycleDataWriter<CData> CDWriter;
94 
95 public:
96  static void register_with_read_factory();
97  virtual void write_datagram(BamWriter *manager, Datagram &dg);
98  virtual int complete_pointers(TypedWritable **plist, BamReader *manager);
99 
100 protected:
101  static TypedWritable *make_from_bam(const FactoryParams &params);
102  void fillin(DatagramIterator &scan, BamReader *manager);
103 
104 public:
105  static TypeHandle get_class_type() {
106  return _type_handle;
107  }
108  static void init_type() {
109  TypedWritableReferenceCount::init_type();
110  register_type(_type_handle, "TransformTable",
111  TypedWritableReferenceCount::get_class_type());
112  }
113  virtual TypeHandle get_type() const {
114  return get_class_type();
115  }
116  virtual TypeHandle force_init_type() {init_type(); return get_class_type();}
117 
118 private:
119  static TypeHandle _type_handle;
120 
121  friend class VertexTransform;
122 };
123 
124 INLINE std::ostream &operator << (std::ostream &out, const TransformTable &obj);
125 
126 #include "transformTable.I"
127 
128 #endif
This is the fundamental interface for extracting binary objects from a Bam file, as generated by a Ba...
Definition: bamReader.h:110
This is the fundamental interface for writing binary objects to a Bam file, to be extracted later by ...
Definition: bamWriter.h:63
This template class calls PipelineCycler::read_unlocked(), and then provides a transparent read-only ...
This template class calls PipelineCycler::write() in the constructor and PipelineCycler::release_writ...
A single page of data maintained by a PipelineCycler.
Definition: cycleData.h:50
A class to retrieve the individual data elements previously stored in a Datagram.
An ordered list of data elements, formatted in memory for transmission over a socket or writing to a ...
Definition: datagram.h:38
An instance of this class is passed to the Factory when requesting it to do its business and construc...
Definition: factoryParams.h:36
A thread; that is, a lightweight process.
Definition: thread.h:46
get_current_thread
Returns a pointer to the currently-executing Thread object.
Definition: thread.h:109
Stores the total set of VertexTransforms that the vertices in a particular GeomVertexData object migh...
TypeHandle is the identifier used to differentiate C++ class types.
Definition: typeHandle.h:81
A base class for things which need to inherit from both TypedWritable and from ReferenceCount.
Base class for objects that can be written to and read from Bam files.
Definition: typedWritable.h:35
virtual void fillin(DatagramIterator &scan, BamReader *manager)
This internal function is intended to be called by each class's make_from_bam() method to read in all...
virtual void write_datagram(BamWriter *manager, Datagram &dg)
Writes the contents of this object to the datagram for shipping out to a Bam file.
virtual int complete_pointers(TypedWritable **p_list, BamReader *manager)
Receives an array of pointers, one for each time manager->read_pointer() was called in fillin().
This is a sequence number that increments monotonically.
Definition: updateSeq.h:37
This is an abstract base class that holds a pointer to some transform, computed in some arbitrary way...
This is our own Panda specialization on the default STL list.
Definition: plist.h:35
This is our own Panda specialization on the default STL vector.
Definition: pvector.h:42
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
void register_type(TypeHandle &type_handle, const std::string &name)
This inline function is just a convenient way to call TypeRegistry::register_type(),...
Definition: register_type.I:22
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.