Panda3D
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recorderController.h
00001 // Filename: recorderController.h
00002 // Created by:  drose (25Jan04)
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 RECORDERCONTROLLER_H
00016 #define RECORDERCONTROLLER_H
00017 
00018 #include "pandabase.h"
00019 #include "datagramOutputFile.h"
00020 #include "datagramInputFile.h"
00021 #include "recorderTable.h"
00022 #include "recorderHeader.h"
00023 #include "typedReferenceCount.h"
00024 #include "factory.h"
00025 
00026 class RecorderBase;
00027 class RecorderFrame;
00028 
00029 ////////////////////////////////////////////////////////////////////
00030 //       Class : RecorderController
00031 // Description : This object manages the process of recording the
00032 //               user's runtime inputs to a bam file so that the
00033 //               session can be recreated later.
00034 ////////////////////////////////////////////////////////////////////
00035 class EXPCL_PANDA_RECORDER RecorderController : public TypedReferenceCount {
00036 PUBLISHED:
00037   RecorderController();
00038   ~RecorderController();
00039 
00040   bool begin_record(const Filename &filename);
00041   bool begin_playback(const Filename &filename);
00042   void close();
00043 
00044   INLINE time_t get_start_time() const;
00045 
00046   INLINE void set_random_seed(int random_seed);
00047   INLINE int get_random_seed() const;
00048 
00049   INLINE bool is_recording() const;
00050   INLINE bool is_playing() const;
00051   INLINE bool is_open() const;
00052   INLINE const Filename &get_filename() const;
00053 
00054   INLINE bool is_error();
00055   INLINE double get_clock_offset() const;
00056   INLINE int get_frame_offset() const;
00057 
00058   INLINE void add_recorder(const string &name, RecorderBase *recorder);
00059   INLINE bool has_recorder(const string &name) const;
00060   INLINE RecorderBase *get_recorder(const string &name) const;
00061   INLINE bool remove_recorder(const string &name);
00062 
00063   INLINE void set_frame_tie(bool frame_tie);
00064   INLINE bool get_frame_tie() const;
00065 
00066   void record_frame();
00067   void play_frame();
00068 
00069 public:
00070   typedef Factory<RecorderBase> RecorderFactory;
00071 
00072   INLINE static RecorderFactory *get_factory();
00073 
00074 private:
00075   INLINE static void create_factory();
00076   RecorderFrame *read_frame();
00077 
00078 private:
00079   RecorderHeader _header;
00080   double _clock_offset;
00081   int _frame_offset;
00082 
00083   Filename _filename;
00084   DatagramOutputFile _dout;
00085   DatagramInputFile _din;
00086   BamWriter *_writer;
00087   BamReader *_reader;
00088   bool _frame_tie;
00089 
00090   // _user_table is directly modified by the user.
00091   RecorderTable *_user_table;
00092   bool _user_table_modified;
00093 
00094   // In playback mode, _file_table represents the table as read
00095   // directly from the session file, with default recorders in each
00096   // slot.
00097   RecorderTable *_file_table;
00098 
00099   // In playback mode, _active_table is the result of the merge of
00100   // _file_table and _user_table, with a default recorder or a
00101   // user-specified recorder in each active slot.
00102   RecorderTable *_active_table;
00103 
00104   RecorderFrame *_next_frame;
00105   bool _eof;
00106 
00107   static RecorderFactory *_factory;
00108   
00109 public:
00110   static TypeHandle get_class_type() {
00111     return _type_handle;
00112   }
00113   static void init_type() {
00114     TypedReferenceCount::init_type();
00115     register_type(_type_handle, "RecorderController",
00116                   TypedReferenceCount::get_class_type());
00117   }
00118   virtual TypeHandle get_type() const {
00119     return get_class_type();
00120   }
00121   virtual TypeHandle force_init_type() {init_type(); return get_class_type();}
00122 
00123 private:
00124   static TypeHandle _type_handle;
00125 
00126   friend class RecorderFrame;
00127 };
00128 
00129 #include "recorderController.I"
00130 
00131 #endif
00132 
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