Panda3D
pnmFileTypeTIFF.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 pnmFileTypeTIFF.h
10  * @author drose
11  * @date 2000-06-17
12  */
13 
14 #ifndef PNMFILETYPETIFF_H
15 #define PNMFILETYPETIFF_H
16 
17 #include "pandabase.h"
18 
19 #ifdef HAVE_TIFF
20 
21 #include "pnmFileType.h"
22 #include "pnmReader.h"
23 #include "pnmWriter.h"
24 
25 #include <stdarg.h> // for va_list
26 
27 
28 #define TIFF_COLORMAP_MAXCOLORS 1024
29 
30 /**
31  * For reading and writing TIFF files.
32  */
33 class EXPCL_PANDA_PNMIMAGETYPES PNMFileTypeTIFF : public PNMFileType {
34 public:
35  PNMFileTypeTIFF();
36 
37  virtual std::string get_name() const;
38 
39  virtual int get_num_extensions() const;
40  virtual std::string get_extension(int n) const;
41  virtual std::string get_suggested_extension() const;
42 
43  virtual bool has_magic_number() const;
44  virtual bool matches_magic_number(const std::string &magic_number) const;
45 
46  virtual PNMReader *make_reader(std::istream *file, bool owns_file = true,
47  const std::string &magic_number = std::string());
48  virtual PNMWriter *make_writer(std::ostream *file, bool owns_file = true);
49 
50 public:
51  class Reader : public PNMReader {
52  public:
53  Reader(PNMFileType *type, std::istream *file, bool owns_file, std::string magic_number);
54  virtual ~Reader();
55 
56  virtual bool is_floating_point();
57  virtual bool read_pfm(PfmFile &pfm);
58  virtual bool supports_read_row() const;
59  virtual bool read_row(xel *array, xelval *alpha, int x_size, int y_size);
60 
61  private:
62  xelval next_sample_lt_8(unsigned char *&buf_ptr, int &bits_left) const;
63  xelval next_sample_8(unsigned char *&buf_ptr, int &bits_left) const;
64  xelval next_sample_16(unsigned char *&buf_ptr, int &bits_left) const;
65  xelval next_sample_32(unsigned char *&buf_ptr, int &bits_left) const;
66  xelval next_sample_general(unsigned char *&buf_ptr, int &bits_left) const;
67 
68  unsigned short sample_format;
69  unsigned short photomet;
70  unsigned short bps, spp;
71  unsigned short unassoc_alpha_sample, assoc_alpha_sample;
72  xel colormap[TIFF_COLORMAP_MAXCOLORS];
73 
74  int current_row;
75  struct tiff *tif;
76  };
77 
78  class Writer : public PNMWriter {
79  public:
80  Writer(PNMFileType *type, std::ostream *file, bool owns_file);
81 
82  virtual bool supports_floating_point();
83  virtual bool supports_integer();
84  virtual bool write_pfm(const PfmFile &pfm);
85  virtual int write_data(xel *array, xelval *alpha);
86  };
87 
88 private:
89  static void install_error_handlers();
90 
91  static void tiff_warning(const char *module, const char *format, va_list ap);
92  static void tiff_error(const char *module, const char *format, va_list ap);
93  static bool _installed_error_handlers;
94 
95  // The TypedWritable interface follows.
96 public:
97  static void register_with_read_factory();
98 
99 protected:
100  static TypedWritable *make_PNMFileTypeTIFF(const FactoryParams &params);
101 
102 public:
103  static TypeHandle get_class_type() {
104  return _type_handle;
105  }
106  static void init_type() {
107  PNMFileType::init_type();
108  register_type(_type_handle, "PNMFileTypeTIFF",
109  PNMFileType::get_class_type());
110  }
111  virtual TypeHandle get_type() const {
112  return get_class_type();
113  }
114  virtual TypeHandle force_init_type() {init_type(); return get_class_type();}
115 
116 private:
117  static TypeHandle _type_handle;
118 };
119 
120 #endif // HAVE_TIFF
121 
122 #endif
An instance of this class is passed to the Factory when requesting it to do its business and construc...
Definition: factoryParams.h:36
This is the base class of a family of classes that represent particular image file types that PNMImag...
Definition: pnmFileType.h:32
virtual bool has_magic_number() const
Returns true if this particular file type uses a magic number to identify it, false otherwise.
Definition: pnmFileType.cxx:76
get_suggested_extension
Returns a suitable filename extension (without a leading dot) to suggest for files of this type,...
Definition: pnmFileType.h:49
virtual PNMReader * make_reader(std::istream *file, bool owns_file=true, const std::string &magic_number=std::string())
Allocates and returns a new PNMReader suitable for reading from this file type, if possible.
Definition: pnmFileType.cxx:96
get_num_extensions
Returns the number of different possible filename extensions associated with this particular file typ...
Definition: pnmFileType.h:44
virtual PNMWriter * make_writer(std::ostream *file, bool owns_file=true)
Allocates and returns a new PNMWriter suitable for reading from this file type, if possible.
get_extension
Returns the nth possible filename extension associated with this particular file type,...
Definition: pnmFileType.h:44
virtual bool matches_magic_number(const std::string &magic_number) const
Returns true if the indicated "magic number" byte stream (the initial few bytes read from the file) m...
Definition: pnmFileType.cxx:86
This is an abstract base class that defines the interface for reading image files of various types.
Definition: pnmReader.h:27
This is an abstract base class that defines the interface for writing image files of various types.
Definition: pnmWriter.h:27
Defines a pfm file, a 2-d table of floating-point numbers, either 3-component or 1-component,...
Definition: pfmFile.h:31
TypeHandle is the identifier used to differentiate C++ class types.
Definition: typeHandle.h:81
Base class for objects that can be written to and read from Bam files.
Definition: typedWritable.h:35
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