Nested and Inner Type Summary

Modifier and Type	Class and Description
pack-priv static class	PngIDatChunkInputStream.IdatChunkInfo

Field Summary

Modifier and Type	Field and Description
private boolean	checkCrc
private final CRC32	crcEngine
private boolean	ended
pack-priv List<PngIDatChunkInputStream.IdatChunkInfo>	foundChunksInfo
private final byte[]	idLastChunk
private final InputStream	inputStream
private int	lenLastChunk
private long	offset
private int	toReadThisChunk

Constructor Summary

Access	Constructor and Description
pack-priv	PngIDatChunkInputStream(final InputStream iStream, final int lenFirstChunk, final long offset) Constructor must be called just after reading length and id of first IDAT chunk

Method Summary

Modifier and Type	Method and Description
public void	close() Overrides java.io.InputStream.close. Implements java.io.Closeable.close. does NOT close the associated stream!
pack-priv void	disableCrcCheck() Disables CRC checking.
private void	endChunkGoForNext()
pack-priv void	forceChunkEnd() sometimes last row read does not fully consumes the chunk here we read the reamaing dummy bytes
pack-priv byte[]	getIdLastChunk()
pack-priv int	getLenLastChunk()
pack-priv long	getOffset()
pack-priv boolean	isEnded()
public int	read(final byte[] the buffer into which the data is read. b, final int the start offset in array `b` at which the data is written. off, final int the maximum number of bytes to read. len) Overrides java.io.InputStream.read. This can return less than len, but never 0 Returns -1 if "pseudo file" ended prematurely.
public int	read(final byte[] the buffer into which the data is read. b) Overrides java.io.InputStream.read. Reads some number of bytes from the input stream and stores them into the buffer array `b`.
public int	read() Implements abstract java.io.InputStream.read. Reads the next byte of data from the input stream.

Inherited from java.io.InputStream:: available mark markSupported nullInputStream readAllBytes readNBytes readNBytes reset skip skipNBytes transferTo

Field Detail

checkCrc	back to summary
private boolean checkCrc

crcEngine	back to summary
private final CRC32 crcEngine

ended	back to summary
private boolean ended

foundChunksInfo	back to summary
pack-priv List<PngIDatChunkInputStream.IdatChunkInfo> foundChunksInfo

idLastChunk	back to summary
private final byte[] idLastChunk

inputStream	back to summary
private final InputStream inputStream

lenLastChunk	back to summary
private int lenLastChunk

offset	back to summary
private long offset

toReadThisChunk	back to summary
private int toReadThisChunk

Constructor Detail

PngIDatChunkInputStream	back to summary
pack-priv PngIDatChunkInputStream(final InputStream iStream, final int lenFirstChunk, final long offset) Constructor must be called just after reading length and id of first IDAT chunk

Method Detail

close	back to summary
public void close() throws IOException Overrides java.io.InputStream.close. Implements java.io.Closeable.close. does NOT close the associated stream! Annotations @Override Exceptions IOException: Doc from java.io.InputStream.close. if an I/O error occurs.

back to summary

public void close() throws IOException

Overrides java.io.InputStream.close.

Implements java.io.Closeable.close.

does NOT close the associated stream!

Annotations

@Override

Exceptions

IOException:

Doc from java.io.InputStream.close.

if an I/O error occurs.

disableCrcCheck	back to summary
pack-priv void disableCrcCheck() Disables CRC checking. This can make reading faster

endChunkGoForNext	back to summary
private void endChunkGoForNext()

forceChunkEnd	back to summary
pack-priv void forceChunkEnd() sometimes last row read does not fully consumes the chunk here we read the reamaing dummy bytes

getIdLastChunk	back to summary
pack-priv byte[] getIdLastChunk()

getLenLastChunk	back to summary
pack-priv int getLenLastChunk()

getOffset	back to summary
pack-priv long getOffset()

isEnded	back to summary
pack-priv boolean isEnded()

read back to summary

read	back to summary
public int read(final byte[] b, final int off, final int len) throws IOException Overrides java.io.InputStream.read. This can return less than len, but never 0 Returns -1 if "pseudo file" ended prematurely. That is our error. Parameters b:byte[] Doc from java.io.InputStream.read. the buffer into which the data is read. off:int Doc from java.io.InputStream.read. the start offset in array `b` at which the data is written. len:int Doc from java.io.InputStream.read. the maximum number of bytes to read. Returns:int Doc from java.io.InputStream.read. the total number of bytes read into the buffer, or `-1` if there is no more data because the end of the stream has been reached. Annotations @Override Exceptions IOException: Doc from java.io.InputStream.read. If the first byte cannot be read for any reason other than end of file, or if the input stream has been closed, or if some other I/O error occurs.

public int read(final byte[] b, final int off, final int len) throws IOException

Overrides java.io.InputStream.read.

This can return less than len, but never 0 Returns -1 if "pseudo file" ended prematurely. That is our error.

Parameters

b:byte[]

Doc from java.io.InputStream.read.

the buffer into which the data is read.

off:int

Doc from java.io.InputStream.read.

the start offset in array b at which the data is written.

len:int

Doc from java.io.InputStream.read.

the maximum number of bytes to read.

Returns:int

Doc from java.io.InputStream.read.

the total number of bytes read into the buffer, or -1 if there is no more data because the end of the stream has been reached.

Annotations

@Override

Exceptions

IOException:

Doc from java.io.InputStream.read.

If the first byte cannot be read for any reason other than end of file, or if the input stream has been closed, or if some other I/O error occurs.

read back to summary

read	back to summary
public int read(final byte[] b) throws IOException Overrides java.io.InputStream.read. Doc from java.io.InputStream.read. Reads some number of bytes from the input stream and stores them into the buffer array `b`. The number of bytes actually read is returned as an integer. This method blocks until input data is available, end of file is detected, or an exception is thrown. If the length of `b` is zero, then no bytes are read and `0` is returned; otherwise, there is an attempt to read at least one byte. If no byte is available because the stream is at the end of the file, the value `-1` is returned; otherwise, at least one byte is read and stored into `b`. The first byte read is stored into element `b[0]`, the next one into `b[1]`, and so on. The number of bytes read is, at most, equal to the length of `b`. Let k be the number of bytes actually read; these bytes will be stored in elements `b[0]` through `b[`k`-1]`, leaving elements `b[`k`]` through `b[b.length-1]` unaffected. Parameters b:byte[] the buffer into which the data is read. Returns:int the total number of bytes read into the buffer, or `-1` if there is no more data because the end of the stream has been reached. Annotations @Override Exceptions IOException: If the first byte cannot be read for any reason other than the end of the file, if the input stream has been closed, or if some other I/O error occurs.

public int read(final byte[] b) throws IOException

Overrides java.io.InputStream.read.

Doc from java.io.InputStream.read.

Reads some number of bytes from the input stream and stores them into the buffer array b. The number of bytes actually read is returned as an integer. This method blocks until input data is available, end of file is detected, or an exception is thrown.

If the length of b is zero, then no bytes are read and 0 is returned; otherwise, there is an attempt to read at least one byte. If no byte is available because the stream is at the end of the file, the value -1 is returned; otherwise, at least one byte is read and stored into b.

The first byte read is stored into element b[0], the next one into b[1], and so on. The number of bytes read is, at most, equal to the length of b. Let k be the number of bytes actually read; these bytes will be stored in elements b[0] through b[k-1], leaving elements b[k] through b[b.length-1] unaffected.

Parameters

b:byte[]: the buffer into which the data is read.

Returns:int

the total number of bytes read into the buffer, or -1 if there is no more data because the end of the stream has been reached.

Annotations

@Override

Exceptions

IOException:: If the first byte cannot be read for any reason other than the end of the file, if the input stream has been closed, or if some other I/O error occurs.

read back to summary

read	back to summary
public int read() throws IOException Implements abstract java.io.InputStream.read. Doc from java.io.InputStream.read. Reads the next byte of data from the input stream. The value byte is returned as an `int` in the range `0` to `255`. If no byte is available because the end of the stream has been reached, the value `-1` is returned. This method blocks until input data is available, the end of the stream is detected, or an exception is thrown. Returns:int the next byte of data, or `-1` if the end of the stream is reached. Annotations @Override Exceptions IOException: if an I/O error occurs.

public int read() throws IOException

Implements abstract java.io.InputStream.read.

Doc from java.io.InputStream.read.

Reads the next byte of data from the input stream. The value byte is returned as an int in the range 0 to 255. If no byte is available because the end of the stream has been reached, the value -1 is returned. This method blocks until input data is available, the end of the stream is detected, or an exception is thrown.

Returns:int

the next byte of data, or -1 if the end of the stream is reached.

Annotations

@Override

Exceptions

IOException:: if an I/O error occurs.

jogamp.opengl.util.pngj back to summary

pack-priv Class PngIDatChunkInputStream.IdatChunkInfo

Class Inheritance

extends Object

java.lang.Object
jogamp.opengl.util.pngj.PngIDatChunkInputStream.IdatChunkInfo

Field Summary

Modifier and Type	Field and Description
public final int	len
public final long	offset

Constructor Summary

Access	Constructor and Description
private	IdatChunkInfo(final int len, final long offset)

Method Summary

Inherited from java.lang.Object:: clone equals finalize getClass hashCode notify notifyAll toString wait wait wait

Field Detail

len	back to summary
public final int len

offset	back to summary
public final long offset

Constructor Detail

IdatChunkInfo	back to summary
private IdatChunkInfo(final int len, final long offset)