Panda3D

geomVertexRewriter.h

00001 // Filename: geomVertexRewriter.h
00002 // Created by:  drose (28Mar05)
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 GEOMVERTEXREWRITER_H
00016 #define GEOMVERTEXREWRITER_H
00017 
00018 #include "pandabase.h"
00019 #include "geomVertexReader.h"
00020 #include "geomVertexWriter.h"
00021 
00022 ////////////////////////////////////////////////////////////////////
00023 //       Class : GeomVertexRewriter
00024 // Description : This object provides the functionality of both a
00025 //               GeomVertexReader and a GeomVertexWriter, combined
00026 //               together into one convenient package.  It is designed
00027 //               for making a single pass over a GeomVertexData
00028 //               object, modifying rows as it goes.
00029 //
00030 //               Although it doesn't provide any real performance
00031 //               benefit over using a separate reader and writer on
00032 //               the same data, it should probably be used in
00033 //               preference to a separate reader and writer, because
00034 //               it makes an effort to manage the reference counts
00035 //               properly between the reader and the writer to avoid
00036 //               accidentally dereferencing either array while
00037 //               recopying.
00038 ////////////////////////////////////////////////////////////////////
00039 class EXPCL_PANDA_GOBJ GeomVertexRewriter : public GeomVertexWriter, public GeomVertexReader {
00040 PUBLISHED:
00041   INLINE GeomVertexRewriter(Thread *current_thread = Thread::get_current_thread());
00042   INLINE GeomVertexRewriter(GeomVertexData *vertex_data, Thread *current_thread = Thread::get_current_thread());
00043   INLINE GeomVertexRewriter(GeomVertexData *vertex_data,
00044                             const string &name, Thread *current_thread = Thread::get_current_thread());
00045   INLINE GeomVertexRewriter(GeomVertexData *vertex_data,
00046                             const InternalName *name, Thread *current_thread = Thread::get_current_thread());
00047   INLINE GeomVertexRewriter(GeomVertexArrayData *array_data, Thread *current_thread = Thread::get_current_thread());
00048   INLINE GeomVertexRewriter(GeomVertexArrayData *array_data, 
00049                             int column, Thread *current_thread = Thread::get_current_thread());
00050   INLINE GeomVertexRewriter(const GeomVertexRewriter &copy);
00051   INLINE void operator = (const GeomVertexRewriter &copy);
00052   INLINE ~GeomVertexRewriter();
00053 
00054   INLINE GeomVertexData *get_vertex_data() const;
00055   INLINE GeomVertexArrayData *get_array_data() const;
00056   INLINE GeomVertexArrayDataHandle *get_array_handle() const;
00057   INLINE size_t get_stride() const;
00058   INLINE Thread *get_current_thread() const;
00059 
00060   INLINE bool set_column(int column);
00061   INLINE bool set_column(const string &name);
00062   INLINE bool set_column(const InternalName *name);
00063   INLINE bool set_column(int array, const GeomVertexColumn *column);
00064 
00065   INLINE void clear();
00066   INLINE bool has_column() const;
00067   INLINE int get_array() const;
00068   INLINE const GeomVertexColumn *get_column() const;
00069 
00070   INLINE void set_row_unsafe(int row);
00071   INLINE void set_row(int row);
00072 
00073   INLINE int get_start_row() const;
00074   INLINE bool is_at_end() const;
00075 
00076   void output(ostream &out) const;
00077 };
00078 
00079 INLINE ostream &
00080 operator << (ostream &out, const GeomVertexRewriter &rewriter) {
00081   rewriter.output(out);
00082   return out;
00083 }
00084 
00085 #include "geomVertexRewriter.I"
00086 
00087 #endif
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