to.etc.sjit

Class AnimGifDecoder

java.lang.Object

to.etc.sjit.AnimGifDecoder

public class AnimGifDecoder
extends Object

This class allows quick decoding of GIF images into BufferedImages. The main use is in web applications. The image type generated can be specified during the decode process. For maximum speed this class does not implement any of the standard Java interfaces like ImageConsumer and ImageProducer and the like.

Author:

Frits Jalvingh

Field Summary

Fields

Modifier and Type	Field and Description
byte	m_h_bgindex
int	m_h_color_res
boolean	m_h_has_global_ct
int	m_h_lh
int	m_h_lw
byte	m_h_pxaspect
byte[]	m_h_sig
boolean	m_h_sorted
int	m_h_sz_global_ct
String	m_h_version
int	m_n_gc_colors

Constructor Summary

Constructors

Constructor and Description
AnimGifDecoder(InputStream is)

Method Summary

Modifier and Type	Method and Description
boolean	canAccept() Returns T if the stream (seems) to represent a GIF file.
BufferedImage	read(int bufimatype) Reads the specified image number from the GIF, creating a BufferedImage of the specified type.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

m_h_sig

public byte[] m_h_sig

m_h_version

public String m_h_version

m_h_lw

public int m_h_lw

m_h_lh

public int m_h_lh

m_n_gc_colors

public int m_n_gc_colors

m_h_sorted

public boolean m_h_sorted

m_h_sz_global_ct

public int m_h_sz_global_ct

m_h_has_global_ct

public boolean m_h_has_global_ct

m_h_color_res

public int m_h_color_res

m_h_pxaspect

public byte m_h_pxaspect

m_h_bgindex

public byte m_h_bgindex

Constructor Detail

AnimGifDecoder

public AnimGifDecoder(InputStream is)

Method Detail

canAccept

public boolean canAccept()
                  throws IOException

Returns T if the stream (seems) to represent a GIF file. Checks for the GIF8xa marker.

Throws:

IOException

read

public BufferedImage read(int bufimatype)
                   throws IOException

Reads the specified image number from the GIF, creating a BufferedImage of the specified type.

Throws:

IOException