Panda3D
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00001 // Filename: pnmFileTypeTIFF.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 PNMFILETYPETIFF_H 00016 #define PNMFILETYPETIFF_H 00017 00018 #include "pandabase.h" 00019 00020 #ifdef HAVE_TIFF 00021 00022 #include "pnmFileType.h" 00023 #include "pnmReader.h" 00024 #include "pnmWriter.h" 00025 00026 #include <stdarg.h> // for va_list 00027 00028 00029 #define TIFF_COLORMAP_MAXCOLORS 1024 00030 00031 //////////////////////////////////////////////////////////////////// 00032 // Class : PNMFileTypeTIFF 00033 // Description : For reading and writing TIFF files. 00034 //////////////////////////////////////////////////////////////////// 00035 class EXPCL_PANDA_PNMIMAGETYPES PNMFileTypeTIFF : public PNMFileType { 00036 public: 00037 PNMFileTypeTIFF(); 00038 00039 virtual string get_name() const; 00040 00041 virtual int get_num_extensions() const; 00042 virtual string get_extension(int n) const; 00043 virtual string get_suggested_extension() const; 00044 00045 virtual bool has_magic_number() const; 00046 virtual bool matches_magic_number(const string &magic_number) const; 00047 00048 virtual PNMReader *make_reader(istream *file, bool owns_file = true, 00049 const string &magic_number = string()); 00050 virtual PNMWriter *make_writer(ostream *file, bool owns_file = true); 00051 00052 public: 00053 class Reader : public PNMReader { 00054 public: 00055 Reader(PNMFileType *type, istream *file, bool owns_file, string magic_number); 00056 virtual ~Reader(); 00057 00058 virtual bool supports_read_row() const; 00059 virtual bool read_row(xel *array, xelval *alpha, int x_size, int y_size); 00060 00061 private: 00062 xelval next_sample_lt_8(unsigned char *&buf_ptr, int &bits_left) const; 00063 xelval next_sample_8(unsigned char *&buf_ptr, int &bits_left) const; 00064 xelval next_sample_16(unsigned char *&buf_ptr, int &bits_left) const; 00065 xelval next_sample_32(unsigned char *&buf_ptr, int &bits_left) const; 00066 xelval next_sample_general(unsigned char *&buf_ptr, int &bits_left) const; 00067 00068 unsigned short photomet; 00069 unsigned short bps, spp; 00070 unsigned short unassoc_alpha_sample, assoc_alpha_sample; 00071 xel colormap[TIFF_COLORMAP_MAXCOLORS]; 00072 00073 int current_row; 00074 struct tiff *tif; 00075 }; 00076 00077 class Writer : public PNMWriter { 00078 public: 00079 Writer(PNMFileType *type, ostream *file, bool owns_file); 00080 00081 virtual int write_data(xel *array, xelval *alpha); 00082 }; 00083 00084 private: 00085 static void install_error_handlers(); 00086 00087 static void tiff_warning(const char *module, const char *format, va_list ap); 00088 static void tiff_error(const char *module, const char *format, va_list ap); 00089 static bool _installed_error_handlers; 00090 00091 // The TypedWritable interface follows. 00092 public: 00093 static void register_with_read_factory(); 00094 00095 protected: 00096 static TypedWritable *make_PNMFileTypeTIFF(const FactoryParams ¶ms); 00097 00098 public: 00099 static TypeHandle get_class_type() { 00100 return _type_handle; 00101 } 00102 static void init_type() { 00103 PNMFileType::init_type(); 00104 register_type(_type_handle, "PNMFileTypeTIFF", 00105 PNMFileType::get_class_type()); 00106 } 00107 virtual TypeHandle get_type() const { 00108 return get_class_type(); 00109 } 00110 virtual TypeHandle force_init_type() {init_type(); return get_class_type();} 00111 00112 private: 00113 static TypeHandle _type_handle; 00114 }; 00115 00116 #endif // HAVE_TIFF 00117 00118 #endif