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 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()

Overrides:

toString in interface ColorModel