Class DirectColorModel

public DirectColorModel(int pixelBits,
                        int rmask,
                        int gmask,
                        int bmask)

For the color model created with this constructor the pixels will have fully opaque alpha components with a value of 255. Each mask should describe a fully contiguous set of bits in the most likely order of alpha, red, green, blue from the most significant byte to the least significant byte.

Parameters:

pixelBits - the number of bits wide used for bit size of pixel values

rmask - the bits describing the red component of a pixel

gmask - the bits describing the green component of a pixel

bmask - the bits describing the blue component of a pixel

public DirectColorModel(int pixelBits,
                        int rmask,
                        int gmask,
                        int bmask,
                        int amask)

For the color model created with this constructor the pixels will have fully opaque alpha components with a value of 255. Each mask should describe a fully contiguous set of bits in the most likely order of red, green, blue from the most significant byte to the least significant byte.

Parameters:

pixelBits - the number of bits wide used for bit size of pixel values

rmask - the bits describing the red component of a pixel

gmask - the bits describing the green component of a pixel

bmask - the bits describing the blue component of a pixel

amask - the bits describing the alpha component of a pixel

public DirectColorModel(ColorSpace cspace,
                        int pixelBits,
                        int rmask,
                        int gmask,
                        int bmask,
                        int amask,
                        boolean isAlphaPremultiplied,
                        int transferType)

public final ColorModel coerceData(WritableRaster raster,
                                   boolean isAlphaPremultiplied)

Overrides:

coerceData in interface ColorModel

public final WritableRaster createCompatibleWritableRaster(int w,
                                                           int h)

Creates a WriteableRaster that has a SampleModel that is compatible with this ColorModel.

Overrides:

createCompatibleWritableRaster in interface ColorModel

Parameters:

w - the width of the writeable raster to create

h - the height of the writeable raster to create

Throws:

IllegalArgumentException - if w or h is less than or equal to zero

public final int getAlpha(int pixel)

Get the alpha component of the given pixel.

Overrides:

getAlpha in interface ColorModel

public int getAlpha(Object inData)

Overrides:

getAlpha in interface ColorModel

public final int getAlphaMask()

public final int getBlue(int pixel)

Get the blue component of the given pixel.

Overrides:

getBlue in interface ColorModel

public int getBlue(Object inData)

Overrides:

getBlue in interface ColorModel

public final int getBlueMask()

public final int[] getComponents(int pixel,
                                 int[] components,
                                 int offset)

Fills an array with the unnormalized component samples from a pixel value. I.e. decompose the pixel, but not perform any color conversion.

Overrides:

getComponents in interface ColorModel

public final int[] getComponents(Object pixel,
                                 int[] components,
                                 int offset)

Overrides:

getComponents in interface ColorModel

public int getDataElement(int[] components,
                          int offset)

Overrides:

getDataElement in interface ColorModel

public Object getDataElements(int rgb,
                              Object pixel)

Converts a normalized pixel int value in the sRGB color space to an array containing a single pixel of the color space of the color model.

This method performs the inverse function of getRGB(Object inData).

Overrides:

getDataElements in interface ColorModel

Parameters:

rgb - pixel as a normalized sRGB, 0xAARRGGBB value.

pixel - to avoid needless creation of arrays, an array to use to return the pixel can be given. If null, a suitable array will be created.

Returns:

array of transferType containing a single pixel. The pixel should be encoded in the natural way of the color model.

See Also:

getRGB(Object)

public Object getDataElements(int[] components,
                              int offset,
                              Object obj)

Overrides:

getDataElements in interface ColorModel

public final int getGreen(int pixel)

Get the green component of the given pixel.

Overrides:

getGreen in interface ColorModel

public int getGreen(Object inData)

Overrides:

getGreen in interface ColorModel

public final int getGreenMask()

public final int getRGB(int pixel)

Get the RGB color value of the given pixel using the default RGB color model.

Overrides:

getRGB in interface ColorModel

Parameters:

pixel - a pixel value

public int getRGB(Object inData)

Overrides:

getRGB in interface ColorModel

public final int getRed(int pixel)

Get the red component of the given pixel.

Overrides:

getRed in interface ColorModel

public int getRed(Object inData)

Overrides:

getRed in interface ColorModel

public final int getRedMask()

public boolean isCompatibleRaster(Raster raster)

Overrides:

isCompatibleRaster in interface ColorModel

public String toString()

Convert this Object to a human-readable String. There are no limits placed on how long this String should be or what it should contain. We suggest you make it as intuitive as possible to be able to place it into System.out.println() and such.

It is typical, but not required, to ensure that this method never completes abruptly with a RuntimeException.

This method will be called when performing string concatenation with this object. If the result is null, string concatenation will instead use "null".

The default implementation returns getClass().getName() + "@" + Integer.toHexString(hashCode()).

Overrides:

toString in interface ColorModel

Returns:

the String representing this Object, which may be null

See Also:

getClass(), Object.hashCode(), Class.getName(), Integer.toHexString(int)