Package panamagl.renderers.image

Class BufferedImageForeign

java.lang.Object

panamagl.renderers.image.BufferedImageForeign

public class BufferedImageForeign
extends Object

Convert AWT Images to MemorySegment or int[] pixel buffers suitable for direct OpenGL rendering via GL_1_0.glDrawPixels(int, int, int, int, MemorySegment).

Author:

Martin Pernollet

Constructor Summary

Constructors

Constructor	Description
BufferedImageForeign()

Method Summary

Modifier and Type	Method	Description
static MemorySegment	allocBytes(byte[] byteArray)	Allocates a invalid reference ByteBuffer to hold the given array of bytes.
static byte[]	convertARGBtoRGBA(int[] pixels)	Convert pixels from java default ARGB int format to byte array in RGBA format.
static MemorySegment	convertARGBtoRGBA(int[] pixels, int width, int height, boolean flipVertically)	Convert ARGB pixels to a MemorySegment containing RGBA pixels.
static int[]	flipPixels(int[] imgPixels, int imgw, int imgh)	Flip an array of pixels vertically
static int[]	getImagePixels(Image image)
static int[]	getImagePixels(Image image, int width, int height)	Return the image pixels in default Java int ARGB format.
static byte[]	getRGBABytes(int[] pixels)
static MemorySegment	toMemorySegment(Image image)
static MemorySegment	toMemorySegment(Image image, int width, int height)	Create a invalid reference ByteBuffer containing a RGBA pixels out of an Image made of ARGB pixels.

Methods inherited from class java.lang.Object

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

Constructor Details

BufferedImageForeign

public BufferedImageForeign()

Method Details

toMemorySegment

public static MemorySegment toMemorySegment(Image image)

toMemorySegment

public static MemorySegment toMemorySegment(Image image,
 int width,
 int height)

Create a

invalid reference

ByteBuffer

containing a RGBA pixels out of an Image made of ARGB pixels. The buffer can later be drawn by GL2.glDrawPixels(imgW, imgH, GL2.GL_RGBA, GL2.GL_UNSIGNED_BYTE, byteBuffer);

Parameters:

image -

width -

height -

Returns:

getImagePixels

public static int[] getImagePixels(Image image)

getImagePixels

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

Return the image pixels in default Java int ARGB format.

Parameters:

image -

width -

height -

Returns:

convertARGBtoRGBA

public static MemorySegment convertARGBtoRGBA(int[] pixels,
 int width,
 int height,
 boolean flipVertically)

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

Parameters:

imgFilename -

Returns:

MemorySegment

convertARGBtoRGBA

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

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

Parameters:

pixels -

Returns:

getRGBABytes

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

flipPixels

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

Flip an array of pixels vertically

Parameters:

imgPixels -

imgw -

imgh -

Returns:

int[]

allocBytes

public static MemorySegment allocBytes(byte[] byteArray)

Allocates a

invalid reference

ByteBuffer

to hold the given array of bytes.

Parameters:

byteArray -

Returns:

ByteBuffer containing the contents of the byte array