/// <summary>
/// Constructs a <code>PackedColorModel</code> from the specified
/// masks which indicate which bits in an <code>int</code> pixel
/// representation contain the alpha, red, green and blue color samples.
/// Color components are in the specified <code>ColorSpace</code>, which
/// must be of type ColorSpace.TYPE_RGB. All of the bits in each
/// mask must be contiguous and fit in the specified number of
/// least significant bits of an <code>int</code> pixel representation. If
/// <code>amask</code> is 0, there is no alpha. If there is alpha,
/// the <code>boolean</code> <code>isAlphaPremultiplied</code>
/// specifies how to interpret color and alpha samples
/// in pixel values. If the <code>boolean</code> is <code>true</code>,
/// color samples are assumed to have been multiplied by the alpha sample.
/// The transparency, <code>trans</code>, specifies what alpha values
/// can be represented by this color model.
/// The transfer type is the type of primitive array used to represent
/// pixel values. </summary>
/// <param name="space"> the specified <code>ColorSpace</code> </param>
/// <param name="bits"> the number of bits in the pixel values </param>
/// <param name="rmask"> specifies the mask representing
/// the bits of the pixel values that represent the red
/// color component </param>
/// <param name="gmask"> specifies the mask representing
/// the bits of the pixel values that represent the green
/// color component </param>
/// <param name="bmask"> specifies the mask representing
/// the bits of the pixel values that represent
/// the blue color component </param>
/// <param name="amask"> specifies the mask representing
/// the bits of the pixel values that represent
/// the alpha component </param>
/// <param name="isAlphaPremultiplied"> <code>true</code> if color samples are
/// premultiplied by the alpha sample; <code>false</code> otherwise </param>
/// <param name="trans"> specifies the alpha value that can be represented by
/// this color model </param>
/// <param name="transferType"> the type of array used to represent pixel values </param>
/// <exception cref="IllegalArgumentException"> if <code>space</code> is not a
/// TYPE_RGB space </exception>
/// <seealso cref= ColorSpace </seealso>
public PackedColorModel(ColorSpace space, int bits, int rmask, int gmask, int bmask, int amask, bool isAlphaPremultiplied, int trans, int transferType) : base(bits, PackedColorModel.CreateBitsArray(rmask, gmask, bmask, amask), space, (amask == 0 ? false : true), isAlphaPremultiplied, trans, transferType)
{
if (space.Type != ColorSpace.TYPE_RGB)
{
throw new IllegalArgumentException("ColorSpace must be TYPE_RGB.");
}
MaskArray = new int[NumComponents_Renamed];
MaskOffsets = new int[NumComponents_Renamed];
ScaleFactors = new float[NumComponents_Renamed];
DecomposeMask(rmask, 0, "red");
DecomposeMask(gmask, 1, "green");
DecomposeMask(bmask, 2, "blue");
if (amask != 0)
{
DecomposeMask(amask, 3, "alpha");
if (NBits[3] == 1)
{
Transparency_Renamed = java.awt.Transparency_Fields.BITMASK;
}
}
}
/// <summary>
/// Constructs a <code>PackedColorModel</code> from a color mask array,
/// which specifies which bits in an <code>int</code> pixel representation
/// contain each of the color samples, and an alpha mask. Color
/// components are in the specified <code>ColorSpace</code>. The length of
/// <code>colorMaskArray</code> should be the number of components in
/// the <code>ColorSpace</code>. All of the bits in each mask
/// must be contiguous and fit in the specified number of least significant
/// bits of an <code>int</code> pixel representation. If the
/// <code>alphaMask</code> is 0, there is no alpha. If there is alpha,
/// the <code>boolean</code> <code>isAlphaPremultiplied</code> specifies
/// how to interpret color and alpha samples in pixel values. If the
/// <code>boolean</code> is <code>true</code>, color samples are assumed
/// to have been multiplied by the alpha sample. The transparency,
/// <code>trans</code>, specifies what alpha values can be represented
/// by this color model. The transfer type is the type of primitive
/// array used to represent pixel values. </summary>
/// <param name="space"> the specified <code>ColorSpace</code> </param>
/// <param name="bits"> the number of bits in the pixel values </param>
/// <param name="colorMaskArray"> array that specifies the masks representing
/// the bits of the pixel values that represent the color
/// components </param>
/// <param name="alphaMask"> specifies the mask representing
/// the bits of the pixel values that represent the alpha
/// component </param>
/// <param name="isAlphaPremultiplied"> <code>true</code> if color samples are
/// premultiplied by the alpha sample; <code>false</code> otherwise </param>
/// <param name="trans"> specifies the alpha value that can be represented by
/// this color model </param>
/// <param name="transferType"> the type of array used to represent pixel values </param>
/// <exception cref="IllegalArgumentException"> if <code>bits</code> is less than
/// 1 or greater than 32 </exception>
public PackedColorModel(ColorSpace space, int bits, int[] colorMaskArray, int alphaMask, bool isAlphaPremultiplied, int trans, int transferType) : base(bits, PackedColorModel.CreateBitsArray(colorMaskArray, alphaMask), space, (alphaMask == 0 ? false : true), isAlphaPremultiplied, trans, transferType)
{
if (bits < 1 || bits > 32)
{
throw new IllegalArgumentException("Number of bits must be between" + " 1 and 32.");
}
MaskArray = new int[NumComponents_Renamed];
MaskOffsets = new int[NumComponents_Renamed];
ScaleFactors = new float[NumComponents_Renamed];
for (int i = 0; i < NumColorComponents_Renamed; i++)
{
// Get the mask offset and #bits
DecomposeMask(colorMaskArray[i], i, space.GetName(i));
}
if (alphaMask != 0)
{
DecomposeMask(alphaMask, NumColorComponents_Renamed, "alpha");
if (NBits[NumComponents_Renamed - 1] == 1)
{
Transparency_Renamed = java.awt.Transparency_Fields.BITMASK;
}
}
}