Panda3D
Public Member Functions | Static Public Member Functions | Friends | List of all members
IffInputFile Class Reference

A wrapper around an istream used for reading an IFF file. More...

#include "iffInputFile.h"

Inheritance diagram for IffInputFile:
TypedObject MemoryBase LwoInputFile

Public Member Functions

void align ()
 If the current file pointer is not positioned on an even-byte boundary, reads and discards one byte so that it is. More...
 
virtual TypeHandle force_init_type ()
 
PN_stdfloat get_be_float32 ()
 Extracts a 32-bit big-endian single-precision floating-point number. More...
 
PN_int16 get_be_int16 ()
 Extracts a signed 16-bit big-endian integer. More...
 
PN_int32 get_be_int32 ()
 Extracts a signed 32-bit big-endian integer. More...
 
PN_uint16 get_be_uint16 ()
 Extracts an unsigned 16-bit big-endian integer. More...
 
PN_uint32 get_be_uint32 ()
 Extracts an unsigned 32-bit big-endian integer. More...
 
size_t get_bytes_read () const
 Returns the number of bytes read so far from the input file. More...
 
const Filenameget_filename () const
 Returns the filename that the InputFile is currently opened on, if available. More...
 
IffId get_id ()
 Extracts a 4-character IFF ID. More...
 
PN_int8 get_int8 ()
 Extracts a signed 8-bit integer. More...
 
string get_string ()
 Extracts a null-terminated string. More...
 
virtual TypeHandle get_type () const
 
PN_uint8 get_uint8 ()
 Extracts an unsigned 8-bit integer. More...
 
bool is_eof () const
 Returns true if the last read operation failed because of reaching EOF, false otherwise. More...
 
bool open_read (Filename filename)
 Attempts to open the indicated filename for reading. More...
 
 PT (IffChunk) get_chunk()
 
 PT (IffChunk) get_subchunk(IffChunk *context)
 
bool read_byte (char &byte)
 Reads a single byte. More...
 
bool read_bytes (Datagram &datagram, int length)
 Reads a series of bytes, and stores them in the indicated Datagram. More...
 
void set_filename (const Filename &filename)
 Indicates the filename that the InputFile is currently opened on. More...
 
void set_input (istream *input, bool owns_istream)
 Sets up the input to use an arbitrary istream. More...
 
bool skip_bytes (int length)
 Reads a series of bytes, but does not store them. More...
 
- Public Member Functions inherited from TypedObject
 TypedObject (const TypedObject &copy)
 
TypedObjectas_typed_object ()
 Returns the object, upcast (if necessary) to a TypedObject pointer. More...
 
const TypedObjectas_typed_object () const
 Returns the object, upcast (if necessary) to a TypedObject pointer. More...
 
int get_best_parent_from_Set (const std::set< int > &) const
 
int get_type_index () const
 Returns the internal index number associated with this object's TypeHandle, a unique number for each different type. More...
 
bool is_exact_type (TypeHandle handle) const
 Returns true if the current object is the indicated type exactly. More...
 
bool is_of_type (TypeHandle handle) const
 Returns true if the current object is or derives from the indicated type. More...
 
void operator= (const TypedObject &copy)
 

Static Public Member Functions

static TypeHandle get_class_type ()
 
static void init_type ()
 
- Static Public Member Functions inherited from TypedObject
static TypeHandle get_class_type ()
 
static void init_type ()
 This function is declared non-inline to work around a compiler bug in g++ 2.96. More...
 

Friends

class IffChunk
 

Detailed Description

A wrapper around an istream used for reading an IFF file.

Definition at line 33 of file iffInputFile.h.

Member Function Documentation

◆ align()

void IffInputFile::align ( )
inline

If the current file pointer is not positioned on an even-byte boundary, reads and discards one byte so that it is.

Definition at line 68 of file iffInputFile.I.

References get_int8().

Referenced by get_bytes_read(), get_string(), and IffGenericChunk::read_iff().

◆ get_be_float32()

PN_stdfloat IffInputFile::get_be_float32 ( )

◆ get_be_int16()

PN_int16 IffInputFile::get_be_int16 ( )

Extracts a signed 16-bit big-endian integer.

Definition at line 129 of file iffInputFile.cxx.

References DatagramIterator::get_be_int16(), get_be_int32(), and read_bytes().

Referenced by get_uint8(), LwoPolygonTags::read_iff(), LwoSurfaceSidedness::read_iff(), and LwoPolygons::read_iff().

◆ get_be_int32()

PN_int32 IffInputFile::get_be_int32 ( )

Extracts a signed 32-bit big-endian integer.

Definition at line 144 of file iffInputFile.cxx.

References DatagramIterator::get_be_int32(), get_be_uint16(), and read_bytes().

Referenced by get_be_int16(), and LwoClip::read_iff().

◆ get_be_uint16()

PN_uint16 IffInputFile::get_be_uint16 ( )

◆ get_be_uint32()

PN_uint32 IffInputFile::get_be_uint32 ( )

Extracts an unsigned 32-bit big-endian integer.

Definition at line 174 of file iffInputFile.cxx.

References get_be_float32(), DatagramIterator::get_be_uint32(), and read_bytes().

Referenced by get_be_uint16(), and get_id().

◆ get_bytes_read()

size_t IffInputFile::get_bytes_read ( ) const
inline

◆ get_filename()

const Filename & IffInputFile::get_filename ( ) const
inline

Returns the filename that the InputFile is currently opened on, if available.

Definition at line 34 of file iffInputFile.I.

References is_eof().

Referenced by set_filename().

◆ get_id()

IffId IffInputFile::get_id ( )

◆ get_int8()

PN_int8 IffInputFile::get_int8 ( )

Extracts a signed 8-bit integer.

Definition at line 99 of file iffInputFile.cxx.

References DatagramIterator::get_int8(), get_uint8(), and read_bytes().

Referenced by align(), and set_input().

◆ get_string()

string IffInputFile::get_string ( )

◆ get_uint8()

PN_uint8 IffInputFile::get_uint8 ( )

Extracts an unsigned 8-bit integer.

Definition at line 114 of file iffInputFile.cxx.

References get_be_int16(), DatagramIterator::get_int8(), and read_bytes().

Referenced by get_int8().

◆ is_eof()

bool IffInputFile::is_eof ( ) const
inline

◆ open_read()

bool IffInputFile::open_read ( Filename  filename)

Attempts to open the indicated filename for reading.

Returns true if successful, false otherwise.

Definition at line 57 of file iffInputFile.cxx.

References VirtualFileSystem::get_global_ptr(), VirtualFileSystem::open_read_file(), Filename::set_binary(), set_filename(), and set_input().

Referenced by LwoToEggConverter::convert_file().

◆ read_byte()

bool IffInputFile::read_byte ( char &  byte)

Reads a single byte.

Returns true if successful, false otherwise.

Definition at line 348 of file iffInputFile.cxx.

References is_eof(), and read_bytes().

Referenced by get_id(), get_string(), and skip_bytes().

◆ read_bytes()

bool IffInputFile::read_bytes ( Datagram datagram,
int  length 
)

Reads a series of bytes, and stores them in the indicated Datagram.

Returns true if successful, false otherwise.

Definition at line 367 of file iffInputFile.cxx.

References is_eof(), and skip_bytes().

Referenced by get_be_float32(), get_be_int16(), get_be_int32(), get_be_uint16(), get_be_uint32(), get_id(), get_int8(), get_uint8(), read_byte(), and IffGenericChunk::read_iff().

◆ set_filename()

void IffInputFile::set_filename ( const Filename filename)
inline

Indicates the filename that the InputFile is currently opened on.

Definition at line 23 of file iffInputFile.I.

References get_filename().

Referenced by open_read().

◆ set_input()

void IffInputFile::set_input ( istream *  input,
bool  owns_istream 
)

Sets up the input to use an arbitrary istream.

If owns_istream is true, the istream will be deleted (via vfs->close_read_file()) when the IffInputFile destructs.

Definition at line 81 of file iffInputFile.cxx.

References VirtualFileSystem::close_read_file(), VirtualFileSystem::get_global_ptr(), and get_int8().

Referenced by open_read().

◆ skip_bytes()

bool IffInputFile::skip_bytes ( int  length)

Reads a series of bytes, but does not store them.

Returns true if successful, false otherwise.

Definition at line 392 of file iffInputFile.cxx.

References is_eof(), and read_byte().

Referenced by get_id(), and read_bytes().


The documentation for this class was generated from the following files: