Package com.jogamp.opengl.util.texture

Class ImageType.Util

java.lang.Object

com.jogamp.opengl.util.texture.ImageType.Util

Enclosing class:

ImageType

public static class ImageType.Util
extends Object

Static utility functions for ImageType to determine the ImageType.type.

Since:

2.3.2

Constructor Summary

Constructors

Constructor	Description
Util()

Method Summary

Modifier and Type	Method	Description
static String	getFileSuffix(byte[] b)	Determines the file suffix (i.e the image format) of the given bytes from the header of a file.
static String	getFileSuffix(InputStream stream)	Determines the file suffix (i.e the image format) of the given InputStream.
static String	getFileSuffix(InputStream stream, byte[] b)	Determines the file suffix (i.e the image format) of the given InputStream.

Methods inherited from class java.lang.Object

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

Constructor Detail

Util

public Util()

Method Detail

getFileSuffix

public static String getFileSuffix(InputStream stream)
                            throws IOException

Determines the file suffix (i.e the image format) of the given InputStream. The given InputStream must return true from markSupported() and support a minimum of ImageType.MAGIC_MAX_SIZE bytes of read-ahead.

Parameters:

stream - stream to parse, InputStream.available() must be ≥ ImageType.MAGIC_MAX_SIZE

Returns:

the file suffix if any, otherwise null

Throws:

IOException - if an I/O exception occurred

getFileSuffix

public static String getFileSuffix(InputStream stream,
                                   byte[] b)
                            throws IOException

Determines the file suffix (i.e the image format) of the given InputStream. The given InputStream must return true from markSupported() and support a minimum of ImageType.MAGIC_MAX_SIZE bytes of read-ahead.

Parameters:

stream - stream to parse, InputStream.available() must be ≥ ImageType.MAGIC_MAX_SIZE

b - byte array sink, size must be ≥ ImageType.MAGIC_MAX_SIZE

Returns:

the file suffix if any, otherwise null

Throws:

IOException - if an I/O exception occurred

getFileSuffix

public static String getFileSuffix(byte[] b)

Determines the file suffix (i.e the image format) of the given bytes from the header of a file.

Parameters:

b - byte array to parse, size must be ≥ ImageType.MAGIC_MAX_SIZE

Returns:

the file suffix if any, otherwise null

Throws:

IOException - if an I/O exception occurred