com.sun.opengl.util.texture.spi
Class SGIImage

java.lang.Object
  com.sun.opengl.util.texture.spi.SGIImage

public class SGIImage
extends Object

Reads and writes SGI RGB/RGBA images.

Written from Paul Bourke's adaptation of the SGI specification.

Method Summary

static SGIImage	createFromData(int width, int height, boolean hasAlpha, byte[] data) Creates an SGIImage from the specified data in either RGB or RGBA format.
byte[]	getData() Returns the raw data for this texture in the correct (bottom-to-top) order for calls to glTexImage2D.
int	getFormat() Returns the OpenGL format for this texture; e.g.
int	getHeight() Returns the height of the image.
int	getWidth() Returns the width of the image.
static boolean	isSGIImage(InputStream in) Determines from the magic number whether the given InputStream points to an SGI RGB image.
static SGIImage	read(InputStream in) Reads an SGI image from the specified InputStream.
static SGIImage	read(String filename) Reads an SGI image from the specified file.
String	toString()
void	write(File file, boolean flipVertically) Writes this SGIImage to the specified file.
void	write(String filename, boolean flipVertically) Writes this SGIImage to the specified file name.

Methods inherited from class java.lang.Object

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

Method Detail

read

public static SGIImage read(String filename)
                     throws IOException

Reads an SGI image from the specified file.

Throws:

IOException

read

public static SGIImage read(InputStream in)
                     throws IOException

Reads an SGI image from the specified InputStream.

Throws:

IOException

write

public void write(String filename,
                  boolean flipVertically)
           throws IOException

Writes this SGIImage to the specified file name. If flipVertically is set, outputs the scanlines from top to bottom rather than the default bottom to top order.

Throws:

IOException

write

public void write(File file,
                  boolean flipVertically)
           throws IOException

Writes this SGIImage to the specified file. If flipVertically is set, outputs the scanlines from top to bottom rather than the default bottom to top order.

Throws:

IOException

createFromData

public static SGIImage createFromData(int width,
                                      int height,
                                      boolean hasAlpha,
                                      byte[] data)

Creates an SGIImage from the specified data in either RGB or RGBA format.

isSGIImage

public static boolean isSGIImage(InputStream in)
                          throws IOException

Determines from the magic number whether the given InputStream points to an SGI RGB image. The given InputStream must return true from markSupported() and support a minimum of two bytes of read-ahead.

Throws:

IOException

getWidth

public int getWidth()

Returns the width of the image.

getHeight

public int getHeight()

Returns the height of the image.

getFormat

public int getFormat()

Returns the OpenGL format for this texture; e.g. GL.GL_RGB or GL.GL_RGBA.

getData

public byte[] getData()

Returns the raw data for this texture in the correct (bottom-to-top) order for calls to glTexImage2D.

toString

public String toString()

Overrides:

toString in class Object