org.monte.media.iff

Class MC68000OutputStream

java.lang.Object

java.io.OutputStream

java.io.FilterOutputStream

org.monte.media.iff.MC68000OutputStream

All Implemented Interfaces:

Closeable, Flushable, AutoCloseable

public class MC68000OutputStream
extends FilterOutputStream

MC68000OutputStream.

Version:

1.1 2010-12-26 Added method writeType().
1.0.1 2008-08-03 The ByteRun1 encoder incorrectly added 1 to its index when flushing the literal run.
1.0 December 25, 2006 Created.

Author:

Werner Randelshofer

Field Summary

Fields

Modifier and Type	Field and Description
protected long	written The number of bytes written to the data output stream so far.

Fields inherited from class java.io.FilterOutputStream

out

Constructor Summary

Constructors

Constructor and Description
MC68000OutputStream(OutputStream out) Creates a new instance.

Method Summary

Methods

Modifier and Type	Method and Description
void	clearCount() Sets the value of the counter written to 0.
protected void	incCount(int value) Increases the written counter by the specified value until it reaches Long.MAX_VALUE.
long	size() Returns the current value of the counter written, the number of bytes written to this data output stream so far.
void	write(byte[] b, int off, int len)
void	write(int b)
void	writeByteRun1(byte[] data) ByteRun1 Run Encoding.
void	writeByteRun1(byte[] data, int offset, int length)
void	writeLONG(int v)
void	writeType(String s) Writes an chunk type identifier (4 bytes).
void	writeUBYTE(int v)
void	writeULONG(long v)
void	writeUWORD(int v)
void	writeWORD(int v)

Methods inherited from class java.io.FilterOutputStream

close, flush, write

Methods inherited from class java.lang.Object

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

Field Detail

written

protected long written

The number of bytes written to the data output stream so far. If this counter overflows, it will be wrapped to Integer.MAX_VALUE.

Constructor Detail

MC68000OutputStream

public MC68000OutputStream(OutputStream out)

Creates a new instance.

Method Detail

writeLONG

public void writeLONG(int v)
               throws IOException

Throws:

IOException

writeULONG

public void writeULONG(long v)
                throws IOException

Throws:

IOException

writeWORD

public void writeWORD(int v)
               throws IOException

Throws:

IOException

writeUWORD

public void writeUWORD(int v)
                throws IOException

Throws:

IOException

writeUBYTE

public void writeUBYTE(int v)
                throws IOException

Throws:

IOException

writeByteRun1

public void writeByteRun1(byte[] data)
                   throws IOException

ByteRun1 Run Encoding.

The run encoding scheme in byteRun1 is best described by pseudo code for the decoder Unpacker (called UnPackBits in the Macintosh toolbox):

 UnPacker:
    LOOP until produced the desired number of bytes
       Read the next source byte into n
       SELECT n FROM
          [ 0..127 ] => copy the next n+1 bytes literally
          [-1..-127] => replicate the next byte -n+1 timees
          -128       => no operation
       ENDCASE
    ENDLOOP
 

Throws:

IOException

writeByteRun1

public void writeByteRun1(byte[] data,
                 int offset,
                 int length)
                   throws IOException

Throws:

IOException

write

public void write(int b)
           throws IOException

Overrides:

write in class FilterOutputStream

Throws:

IOException

write

public void write(byte[] b,
         int off,
         int len)
           throws IOException

Overrides:

write in class FilterOutputStream

Throws:

IOException

writeType

public void writeType(String s)
               throws IOException

Writes an chunk type identifier (4 bytes).

Parameters:

s - A string with a length of 4 characters.

Throws:

IOException

size

public final long size()

Returns the current value of the counter written, the number of bytes written to this data output stream so far. If the counter overflows, it will be wrapped to Integer.MAX_VALUE.

Returns:

the value of the written field.

See Also:

DataOutputStream.written

clearCount

public void clearCount()

Sets the value of the counter written to 0.

incCount

protected void incCount(int value)

Increases the written counter by the specified value until it reaches Long.MAX_VALUE.