C# Class BitMiracle.LibTiff.Classic.Internal.CodecWithPredictor

Codecs that want to support the Predictor tag should inherit from this class instead of TiffCodec. Such codecs should not override default TiffCodec's methods for decode|encode setup and encoding|decoding of row|tile|strip. Codecs with predictor support should override equivalent methods provided by this class. If codec wants to provide custom tag get|set|print methods, then it should pass pointer to a object derived from TiffTagMethods as parameter to TIFFPredictorInit

Inheritance: TiffCodec

Datei anzeigen Open project: Core-Techs/TiffLibrary Class Usage Examples

Public Methods

Method	Description
CodecWithPredictor ( Tiff tif, Compression scheme, string name ) : System
DecodeRow ( byte buffer, int offset, int count, short plane ) : bool	Decodes one row of image data.
DecodeStrip ( byte buffer, int offset, int count, short plane ) : bool	Decodes one strip of image data.
DecodeTile ( byte buffer, int offset, int count, short plane ) : bool	Decodes one tile of image data.
EncodeRow ( byte buffer, int offset, int count, short plane ) : bool	Encodes one row of image data.
EncodeStrip ( byte buffer, int offset, int count, short plane ) : bool	Encodes one strip of image data.
EncodeTile ( byte buffer, int offset, int count, short plane ) : bool	Encodes one tile of image data.
GetChildTagMethods ( ) : TiffTagMethods
GetPredictorValue ( ) : Predictor
SetPredictorValue ( Predictor value ) : void
SetupDecode ( ) : bool	Setups the decoder part of the codec. SetupDecode is called once before TiffCodec.PreDecode.
SetupEncode ( ) : bool	Setups the encoder part of the codec. SetupEncode is called once before TiffCodec.PreEncode.
TIFFPredictorCleanup ( ) : void
TIFFPredictorInit ( TiffTagMethods tagMethods ) : void
predictor_decoderow ( byte buffer, int offset, int count, short plane ) : bool
predictor_decodestrip ( byte buffer, int offset, int count, short plane ) : bool
predictor_decodetile ( byte buffer, int offset, int count, short plane ) : bool
predictor_encoderow ( byte buffer, int offset, int count, short plane ) : bool
predictor_encodestrip ( byte buffer, int offset, int count, short plane ) : bool
predictor_encodetile ( byte buffer, int offset, int count, short plane ) : bool
predictor_setupdecode ( ) : bool
predictor_setupencode ( ) : bool

Private Methods

Method	Description
PredictorDecodeRow ( byte buffer, int offset, int count, short plane ) : bool	Decode a scanline and apply the predictor routine.
PredictorDecodeTile ( byte buffer, int offset, int count, short plane ) : bool	Decode a tile/strip and apply the predictor routine. Note that horizontal differencing must be done on a row-by-row basis. The width of a "row" has already been calculated at pre-decode time according to the strip/tile dimensions.
PredictorEncodeRow ( byte buffer, int offset, int count, short plane ) : bool
PredictorEncodeTile ( byte buffer, int offset, int count, short plane ) : bool
PredictorSetup ( ) : bool
PredictorSetupDecode ( ) : bool
PredictorSetupEncode ( ) : bool
fpAcc ( byte buffer, int offset, int count ) : void	Floating point predictor accumulation routine.
fpDiff ( byte buffer, int offset, int count ) : void	Floating point predictor differencing routine.
horAcc16 ( byte buffer, int offset, int count ) : void
horAcc32 ( byte buffer, int offset, int count ) : void
horAcc8 ( byte buffer, int offset, int count ) : void
horDiff16 ( byte buffer, int offset, int count ) : void
horDiff32 ( byte buffer, int offset, int count ) : void
horDiff8 ( byte buffer, int offset, int count ) : void
predictorFunc ( byte buffer, int offset, int count ) : void
swabHorAcc16 ( byte buffer, int offset, int count ) : void
swabHorAcc32 ( byte buffer, int offset, int count ) : void

Method Details

CodecWithPredictor() public method

public CodecWithPredictor ( Tiff tif, Compression scheme, string name ) : System
tif	Tiff
scheme	Compression
name	string
return	System

DecodeRow() public method

Decodes one row of image data.

public DecodeRow ( byte buffer, int offset, int count, short plane ) : bool
buffer	byte	The buffer to place decoded image data to.
offset	int	The zero-based byte offset in at /// which to begin storing decoded bytes.
count	int	The number of decoded bytes that should be placed /// to
plane	short	The zero-based sample plane index.
return	bool

DecodeStrip() public method

Decodes one strip of image data.

public DecodeStrip ( byte buffer, int offset, int count, short plane ) : bool
buffer	byte	The buffer to place decoded image data to.
offset	int	The zero-based byte offset in at /// which to begin storing decoded bytes.
count	int	The number of decoded bytes that should be placed /// to
plane	short	The zero-based sample plane index.
return	bool

DecodeTile() public method

Decodes one tile of image data.

public DecodeTile ( byte buffer, int offset, int count, short plane ) : bool
buffer	byte	The buffer to place decoded image data to.
offset	int	The zero-based byte offset in at /// which to begin storing decoded bytes.
count	int	The number of decoded bytes that should be placed /// to
plane	short	The zero-based sample plane index.
return	bool

EncodeRow() public method

Encodes one row of image data.

public EncodeRow ( byte buffer, int offset, int count, short plane ) : bool
buffer	byte	The buffer with image data to be encoded.
offset	int	The zero-based byte offset in at /// which to begin read image data.
count	int	The maximum number of encoded bytes that can be placed /// to
plane	short	The zero-based sample plane index.
return	bool

EncodeStrip() public method

Encodes one strip of image data.

public EncodeStrip ( byte buffer, int offset, int count, short plane ) : bool
buffer	byte	The buffer with image data to be encoded.
offset	int	The zero-based byte offset in at /// which to begin read image data.
count	int	The maximum number of encoded bytes that can be placed /// to
plane	short	The zero-based sample plane index.
return	bool

EncodeTile() public method

Encodes one tile of image data.

public EncodeTile ( byte buffer, int offset, int count, short plane ) : bool
buffer	byte	The buffer with image data to be encoded.
offset	int	The zero-based byte offset in at /// which to begin read image data.
count	int	The maximum number of encoded bytes that can be placed /// to
plane	short	The zero-based sample plane index.
return	bool

GetChildTagMethods() public method

public GetChildTagMethods ( ) : TiffTagMethods
return	TiffTagMethods

GetPredictorValue() public method

public GetPredictorValue ( ) : Predictor
return	Predictor

SetPredictorValue() public method

public SetPredictorValue ( Predictor value ) : void
value	Predictor
return	void

SetupDecode() public method

Setups the decoder part of the codec.

SetupDecode is called once before TiffCodec.PreDecode.

public SetupDecode ( ) : bool
return	bool

SetupEncode() public method

Setups the encoder part of the codec.

SetupEncode is called once before TiffCodec.PreEncode.

public SetupEncode ( ) : bool
return	bool

TIFFPredictorCleanup() public method

public TIFFPredictorCleanup ( ) : void
return	void

TIFFPredictorInit() public method

public TIFFPredictorInit ( TiffTagMethods tagMethods ) : void
tagMethods	TiffTagMethods
return	void

predictor_decoderow() public method

public predictor_decoderow ( byte buffer, int offset, int count, short plane ) : bool
buffer	byte
offset	int
count	int
plane	short
return	bool

predictor_decodestrip() public method

public predictor_decodestrip ( byte buffer, int offset, int count, short plane ) : bool
buffer	byte
offset	int
count	int
plane	short
return	bool

predictor_decodetile() public method

public predictor_decodetile ( byte buffer, int offset, int count, short plane ) : bool
buffer	byte
offset	int
count	int
plane	short
return	bool

predictor_encoderow() public method

public predictor_encoderow ( byte buffer, int offset, int count, short plane ) : bool
buffer	byte
offset	int
count	int
plane	short
return	bool

predictor_encodestrip() public method

public predictor_encodestrip ( byte buffer, int offset, int count, short plane ) : bool
buffer	byte
offset	int
count	int
plane	short
return	bool

predictor_encodetile() public method

public predictor_encodetile ( byte buffer, int offset, int count, short plane ) : bool
buffer	byte
offset	int
count	int
plane	short
return	bool

predictor_setupdecode() public method

public predictor_setupdecode ( ) : bool
return	bool

predictor_setupencode() public method

public predictor_setupencode ( ) : bool
return	bool