Package limn.graphics

Class Image

java.lang.Object

limn.graphics.Image

public final class Image
extends Object

An immutable, backend-independent bitmap: RGBA8 pixels, straight (non premultiplied) alpha, row-major, row 0 at the top. Decoded once (see Images) and drawn via Canvas.drawImage(limn.graphics.Image, float, float, float, float); the GPU texture is created lazily by each window's renderer, so one Image works across multiple windows (whose GL contexts are not shared).

Object identity is the texture-cache key; reuse the same instance rather than decoding the same asset repeatedly.

Constructor Summary

Constructors

Constructor	Description
Image(int width, int height, byte[] rgba)

Method Summary

Modifier and Type	Method	Description
int	height()
byte[]	pixels()
int	width()

Methods inherited from class java.lang.Object

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

Constructor Details

Image

public Image(int width,
 int height,
 byte[] rgba)

Parameters:

width - pixels

height - pixels

rgba - width*height*4 bytes, straight alpha, top-down

Method Details

width

public int width()

Returns:

width in pixels

height

public int height()

Returns:

height in pixels

pixels

public byte[] pixels()

Returns:

the raw RGBA bytes (do not mutate)