org.jzy3d.io
Class GLImage

java.lang.Object
  org.jzy3d.io.GLImage

public class GLImage
extends Object

Field Summary

protected static int

SIZE_BYTE

Constructor Summary

GLImage()

Method Summary

static ByteBuffer	allocBytes(byte[] bytearray) Same function as in GLApp.java.
static byte[]	convertARGBtoRGBA(int[] jpixels) Convert pixels from java default ARGB int format to byte array in RGBA format.
static ByteBuffer	convertImagePixels(int[] jpixels, int imgw, int imgh, boolean flipVertically) Convert ARGB pixels to a ByteBuffer containing RGBA pixels.
static int[]	flipPixels(int[] imgPixels, int imgw, int imgh) Flip an array of pixels vertically
static ByteBuffer	getImageAsGlByteBuffer(Image image, int width, int height)
static int[]	getImagePixels(Image image, int width, int height) Return the image pixels in default Java int ARGB format.
static byte[]	getRGBABytes(int[] jpixels)
static ByteBuffer	toByteBuffer(Image img, int imgWidth, int imgHeight)

Methods inherited from class java.lang.Object

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

Field Detail

SIZE_BYTE

protected static final int SIZE_BYTE

See Also:

Constant Field Values

Constructor Detail

GLImage

public GLImage()

Method Detail

getImageAsGlByteBuffer

public static ByteBuffer getImageAsGlByteBuffer(Image image,
                                                int width,
                                                int height)

getImagePixels

public static int[] getImagePixels(Image image,
                                   int width,
                                   int height)

Return the image pixels in default Java int ARGB format.

convertImagePixels

public static ByteBuffer convertImagePixels(int[] jpixels,
                                            int imgw,
                                            int imgh,
                                            boolean flipVertically)

Convert ARGB pixels to a ByteBuffer containing RGBA pixels.
Can be drawn in ORTHO mode using:
GL2.glDrawPixels(imgW, imgH, GL2.GL_RGBA, GL2.GL_UNSIGNED_BYTE, byteBuffer);
If flipVertically is true, pixels will be flipped vertically for OpenGL coord system.

Parameters:

imgFilename -

Returns:

ByteBuffer

flipPixels

public static int[] flipPixels(int[] imgPixels,
                               int imgw,
                               int imgh)

Flip an array of pixels vertically

Parameters:

imgPixels -

imgw -

imgh -

Returns:

int[]

convertARGBtoRGBA

public static byte[] convertARGBtoRGBA(int[] jpixels)

Convert pixels from java default ARGB int format to byte array in RGBA format.

Parameters:

jpixels -

Returns:

getRGBABytes

public static byte[] getRGBABytes(int[] jpixels)

allocBytes

public static ByteBuffer allocBytes(byte[] bytearray)

Same function as in GLApp.java. Allocates a ByteBuffer to hold the given array of bytes.

Parameters:

bytearray -

Returns:

ByteBuffer containing the contents of the byte array

toByteBuffer

public static ByteBuffer toByteBuffer(Image img,
                                      int imgWidth,
                                      int imgHeight)