Panda3D

pnmFileTypeIMG.h

00001 // Filename: pnmFileTypeIMG.h
00002 // Created by:  drose (17Jun00)
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 PNMFILETYPEIMG_H
00016 #define PNMFILETYPEIMG_H
00017 
00018 #include "pandabase.h"
00019 
00020 #ifdef HAVE_IMG
00021 
00022 #include "pnmFileType.h"
00023 #include "pnmReader.h"
00024 #include "pnmWriter.h"
00025 
00026 ////////////////////////////////////////////////////////////////////
00027 //       Class : PNMFileTypeIMG
00028 // Description : For reading and writing headerless R,G,B files.
00029 ////////////////////////////////////////////////////////////////////
00030 class EXPCL_PANDA_PNMIMAGETYPES PNMFileTypeIMG : public PNMFileType {
00031 public:
00032   PNMFileTypeIMG();
00033 
00034   virtual string get_name() const;
00035 
00036   virtual int get_num_extensions() const;
00037   virtual string get_extension(int n) const;
00038   virtual string get_suggested_extension() const;
00039 
00040   virtual PNMReader *make_reader(istream *file, bool owns_file = true,
00041                                  const string &magic_number = string());
00042   virtual PNMWriter *make_writer(ostream *file, bool owns_file = true);
00043 
00044 public:
00045   class Reader : public PNMReader {
00046   public:
00047     Reader(PNMFileType *type, istream *file, bool owns_file, string magic_number);
00048 
00049     virtual bool supports_read_row() const;
00050     virtual bool read_row(xel *array, xelval *alpha, int x_size, int y_size);
00051   };
00052 
00053   class Writer : public PNMWriter {
00054   public:
00055     Writer(PNMFileType *type, ostream *file, bool owns_file);
00056 
00057     virtual bool supports_write_row() const;
00058     virtual bool write_header();
00059     virtual bool write_row(xel *array, xelval *alpha);
00060   };
00061 
00062 
00063   // The TypedWritable interface follows.
00064 public:
00065   static void register_with_read_factory();
00066 
00067 protected:
00068   static TypedWritable *make_PNMFileTypeIMG(const FactoryParams &params);
00069 
00070 public:
00071   static TypeHandle get_class_type() {
00072     return _type_handle;
00073   }
00074   static void init_type() {
00075     PNMFileType::init_type();
00076     register_type(_type_handle, "PNMFileTypeIMG",
00077                   PNMFileType::get_class_type());
00078   }
00079   virtual TypeHandle get_type() const {
00080     return get_class_type();
00081   }
00082   virtual TypeHandle force_init_type() {init_type(); return get_class_type();}
00083 
00084 private:
00085   static TypeHandle _type_handle;
00086 };
00087 
00088 #endif  // HAVE_IMG
00089 
00090 #endif
00091 
00092 
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