Package eu.svjatoslav.sixth.e3d.renderer.raster.texture

Class Texture

java.lang.Object

eu.svjatoslav.sixth.e3d.renderer.raster.texture.Texture

public class Texture
extends Object

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	Texture.ColorAccumulator	A helper class that accumulates color values for a given area of a bitmap

Field Summary

Fields

Modifier and Type	Field	Description
final Graphics2D	graphics
final TextureBitmap	primaryBitmap

Constructor Summary

Constructors

Constructor	Description
Texture(int width, int height, int maxUpscale)

Method Summary

Modifier and Type	Method	Description
int	detectDownscaleFactorForZoom(double zoom)
int	detectUpscaleFactorForZoom(double zoom)
TextureBitmap	downscaleBitmap(TextureBitmap originalBitmap)	Downscale given bitmap by factor of 2.
TextureBitmap	getDownscaledBitmap(int scaleFactor)
TextureBitmap	getUpscaledBitmap(int scaleFactor)	Returns the bitmap that should be used for rendering at the given zoom
TextureBitmap	getZoomedBitmap(double zoomLevel)	Returns the bitmap that should be used for rendering at the given zoom
void	resetResampledBitmapCache()	Resets the cache of resampled bitmaps
TextureBitmap	upscaleBitmap(TextureBitmap originalBitmap)	Upscales the given bitmap by a factor of 2

Methods inherited from class java.lang.Object

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

Field Details

primaryBitmap

public final TextureBitmap primaryBitmap

graphics

public final Graphics2D graphics

Constructor Details

Texture

public Texture(int width,
 int height,
 int maxUpscale)

Method Details

detectDownscaleFactorForZoom

public int detectDownscaleFactorForZoom(double zoom)

detectUpscaleFactorForZoom

public int detectUpscaleFactorForZoom(double zoom)

downscaleBitmap

public TextureBitmap downscaleBitmap(TextureBitmap originalBitmap)

Downscale given bitmap by factor of 2.

Parameters:

originalBitmap - Bitmap to downscale.

Returns:

Downscaled bitmap.

getDownscaledBitmap

public TextureBitmap getDownscaledBitmap(int scaleFactor)

getUpscaledBitmap

public TextureBitmap getUpscaledBitmap(int scaleFactor)

Returns the bitmap that should be used for rendering at the given zoom

Parameters:

scaleFactor - The upscale factor

Returns:

The bitmap

getZoomedBitmap

public TextureBitmap getZoomedBitmap(double zoomLevel)

Returns the bitmap that should be used for rendering at the given zoom

Parameters:

zoomLevel - The zoom level

Returns:

The bitmap

resetResampledBitmapCache

public void resetResampledBitmapCache()

Resets the cache of resampled bitmaps

upscaleBitmap

public TextureBitmap upscaleBitmap(TextureBitmap originalBitmap)

Upscales the given bitmap by a factor of 2

Parameters:

originalBitmap - The bitmap to upscale

Returns:

The upscaled bitmap