ScummVM API documentation
Common::SeekableSubReadStream Class Reference
Inheritance diagram for Common::SeekableSubReadStream:
Common::SubReadStream Common::SeekableReadStream Common::ReadStream Common::ReadStream Common::Stream Common::Stream Common::SafeSeekableSubReadStream CryOmni3D::DATSeekableStream Stark::ArchiveReadStream Stark::Formats::XRCReadStream Stark::StateReadStream Common::SafeMutexedSeekableSubReadStream

Public Member Functions

 SeekableSubReadStream (SeekableReadStream *parentStream, uint32 begin, uint32 end, DisposeAfterUse::Flag disposeParentStream=DisposeAfterUse::NO)
 
virtual int64 pos () const
 
virtual int64 size () const
 
virtual bool seek (int64 offset, int whence=SEEK_SET)
 
- Public Member Functions inherited from Common::SubReadStream
 SubReadStream (ReadStream *parentStream, uint32 end, DisposeAfterUse::Flag disposeParentStream=DisposeAfterUse::NO)
 
virtual bool eos () const
 
virtual bool err () const
 
virtual void clearErr ()
 
virtual uint32 read (void *dataPtr, uint32 dataSize)
 
- Public Member Functions inherited from Common::ReadStream
byte readByte ()
 
FORCEINLINE int8 readSByte ()
 
uint16 readUint16LE ()
 
uint32 readUint32LE ()
 
uint64 readUint64LE ()
 
uint16 readUint16BE ()
 
uint32 readUint32BE ()
 
uint64 readUint64BE ()
 
FORCEINLINE int16 readSint16LE ()
 
FORCEINLINE int32 readSint32LE ()
 
FORCEINLINE int64 readSint64LE ()
 
FORCEINLINE int16 readSint16BE ()
 
FORCEINLINE int32 readSint32BE ()
 
FORCEINLINE int64 readSint64BE ()
 
FORCEINLINE float readFloatLE ()
 
FORCEINLINE float readFloatBE ()
 
FORCEINLINE double readDoubleLE ()
 
FORCEINLINE double readDoubleBE ()
 
template<class TDataFormat , class... T>
bool readMultiple (const TDataFormat &dataFormat, T &...values)
 
template<class... T>
bool readMultipleEndian (bool isLittle, T &...values)
 
template<class... T>
bool readMultipleLE (T &...values)
 
template<class... T>
bool readMultipleBE (T &...values)
 
SeekableReadStreamreadStream (uint32 dataSize)
 
String readString (char terminator=0, size_t len=String::npos)
 
Common::String readPascalString (bool transformCR=true)
 
- Public Member Functions inherited from Common::SeekableReadStream
virtual bool skip (uint32 offset)
 
virtual char * readLine (char *s, size_t bufSize, bool handleCR=true)
 
virtual String readLine (bool handleCR=true)
 
void hexdump (int len, int bytesPerLine=16, int startOffset=0)
 

Protected Attributes

SeekableReadStream_parentStream
 
uint32 _begin
 
- Protected Attributes inherited from Common::SubReadStream
DisposablePtr< ReadStream_parentStream
 
uint32 _pos
 
uint32 _end
 
bool _eos
 

Member Function Documentation

◆ pos()

virtual int64 Common::SeekableSubReadStream::pos ( ) const
inlinevirtual

Obtain the current value of the stream position indicator.

Returns
The current position indicator, or -1 if an error occurred.

Implements Common::SeekableReadStream.

◆ size()

virtual int64 Common::SeekableSubReadStream::size ( ) const
inlinevirtual

Obtain the total size of the stream, measured in bytes. If this value is unknown or cannot be computed, -1 is returned.

Returns
The size of the stream, or -1 if an error occurred.

Implements Common::SeekableReadStream.

◆ seek()

virtual bool Common::SeekableSubReadStream::seek ( int64  offset,
int  whence = SEEK_SET 
)
virtual

Set the stream position indicator for the stream.

The new position, measured in bytes, is obtained by adding offset bytes to the position specified by whence. If whence is set to SEEK_SET, SEEK_CUR, or SEEK_END, the offset is relative to the start of the file, the current position indicator, or end-of-stream, respectively. A successful call to the seek() method clears the end-of-stream indicator for the stream.

Note
The semantics of any implementation of this method is supposed to match that of ISO C fseek().
Parameters
offsetRelative offset in bytes.
whenceSeek reference: SEEK_SET, SEEK_CUR, or SEEK_END.
Returns
True on success, false in case of a failure.

Implements Common::SeekableReadStream.


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