00001
00002
00003
00004
00005
00006
00007
00008
00009
00010
00011
00012
00013
00014
00015 #ifndef PNMFILETYPEBMP_H
00016 #define PNMFILETYPEBMP_H
00017
00018 #include "pandabase.h"
00019
00020 #ifdef HAVE_BMP
00021
00022 #include "pnmFileType.h"
00023 #include "pnmReader.h"
00024 #include "pnmWriter.h"
00025
00026
00027
00028
00029
00030 class EXPCL_PANDA_PNMIMAGETYPES PNMFileTypeBMP : public PNMFileType {
00031 public:
00032 PNMFileTypeBMP();
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 bool has_magic_number() const;
00041 virtual bool matches_magic_number(const string &magic_number) const;
00042
00043 virtual PNMReader *make_reader(istream *file, bool owns_file = true,
00044 const string &magic_number = string());
00045 virtual PNMWriter *make_writer(ostream *file, bool owns_file = true);
00046
00047 public:
00048 class Reader : public PNMReader {
00049 public:
00050 Reader(PNMFileType *type, istream *file, bool owns_file, string magic_number);
00051
00052 virtual int read_data(xel *array, xelval *alpha);
00053
00054 private:
00055 unsigned long pos;
00056
00057 unsigned long offBits;
00058
00059 unsigned short cBitCount;
00060 int indexed;
00061 int classv;
00062
00063 pixval R[256];
00064 pixval G[256];
00065 pixval B[256];
00066 };
00067
00068 class Writer : public PNMWriter {
00069 public:
00070 Writer(PNMFileType *type, ostream *file, bool owns_file);
00071
00072 virtual int write_data(xel *array, xelval *alpha);
00073 virtual bool supports_grayscale() const;
00074 };
00075
00076
00077
00078 public:
00079 static void register_with_read_factory();
00080
00081 protected:
00082 static TypedWritable *make_PNMFileTypeBMP(const FactoryParams ¶ms);
00083
00084 public:
00085 static TypeHandle get_class_type() {
00086 return _type_handle;
00087 }
00088 static void init_type() {
00089 PNMFileType::init_type();
00090 register_type(_type_handle, "PNMFileTypeBMP",
00091 PNMFileType::get_class_type());
00092 }
00093 virtual TypeHandle get_type() const {
00094 return get_class_type();
00095 }
00096 virtual TypeHandle force_init_type() {init_type(); return get_class_type();}
00097
00098 private:
00099 static TypeHandle _type_handle;
00100 };
00101
00102 #endif // HAVE_BMP
00103
00104 #endif