ImageFunctions.SubtractiveCompositeContext

java.lang.Object

com.blackrook.rookscript.desktop.functions.ImageFunctions.SubtractiveCompositeContext

All Implemented Interfaces:: CompositeContext

Enclosing class:: ImageFunctions

public static class ImageFunctions.SubtractiveCompositeContext
extends Object

The composite context for ImageFunctions.SubtractiveComposites.

Field Summary

Fields

Modifier and Type Field Description

protected ColorModel dstColorModel

protected int preAlpha

protected ColorModel srcColorModel

Method Summary

Modifier and Type	Method	Description
`protected static void`	`checkRaster(ColorModel colorModel, Raster raster)`	Checks if a `Raster` is the correct data format for this compositing operation.
`void`	`compose(Raster src, Raster dstIn, WritableRaster dstOut)`
`protected int`	`composePixel(int srcARGB, int dstARGB)`	Mixes two pixels together.
`void`	`dispose()`

Methods inherited from class java.lang.Object

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

Field Details
- srcColorModel
  
  protected ColorModel srcColorModel
- dstColorModel
  
  protected ColorModel dstColorModel
- preAlpha
  
  protected int preAlpha
Method Details
- composePixel
  
  protected int composePixel(int srcARGB, int dstARGB)
  
  Mixes two pixels together.
  
  Parameters:
  
  srcARGB - the incoming ARGB 32-bit integer value.
  
  dstARGB - the existing, "source" ARGB 32-bit integer value.
  
  Returns:
  
  the resultant ARGB value.
- checkRaster
  
  protected static void checkRaster(ColorModel colorModel, Raster raster)
  
  Checks if a Raster is the correct data format for this compositing operation.
  
  Parameters:
  
  colorModel - the color model to check compatibility for.
  
  raster - the Raster to check.
  
  Throws:
  
  UnsupportedOperationException - if the Raster's data type is not DataBuffer.TYPE_INT.
- compose
  
  public void compose(Raster src, Raster dstIn, WritableRaster dstOut)
  
  Specified by:
  
  compose in interface CompositeContext
- dispose
  
  public void dispose()
  
  Specified by:
  
  dispose in interface CompositeContext