kitepdf-core/io.github.yuroyami.kitepdf.core.render/KiteRaster

KiteRaster

class KiteRaster(val width: Int, val height: Int, val pixels: IntArray)(source)

Pixels that a KiteRasterStep reads and writes: width by height pixels, row by row from the top, each one an sRGB colour with straight alpha packed as 0xAARRGGBB. That is the layout of BufferedImage.TYPE_INT_ARGB on the JVM and of Bitmap.getPixels on Android, so those canvases hand their pixels over without a conversion.

Constructors

KiteRaster

constructor(width: Int, height: Int, pixels: IntArray)

constructor(width: Int, height: Int)

A transparent raster of width by height pixels.

Properties

height

val height: Int

pixels

val pixels: IntArray

width

val width: Int

Functions

copy

fun copy(): KiteRaster

A raster with the same size and its own copy of the pixels.

encodeJpeg

fun KiteRaster.encodeJpeg(quality: Int): ByteArray

These pixels as a JPEG file of quality from 1 to 100. JPEG has no alpha, so each pixel is first drawn over black, as a browser does for toDataURL('image/jpeg').

encodePng

fun KiteRaster.encodePng(): ByteArray

These pixels as a PNG file, with their alpha.

get

operator fun get(x: Int, y: Int): Int

The pixel in column x of row y, counted from the top left.

toImageData

fun KiteRaster.toImageData(): KiteImageData

These pixels as an image that a canvas draws, smoothed when it is scaled.