File	Doc	Category	Size	Date	Package
ICC_ColorSpace.java	API Doc	Android 1.5 API	14844	Wed May 06 22:41:54 BST 2009	java.awt.color

ICC_ColorSpace

• java.lang.Object
  • java.awt.color.ColorSpace

Fields Summary
private static final long	serialVersionUID The Constant serialVersionUID.
private static final ObjectStreamField[]	serialPersistentFields The Constant serialPersistentFields.
private static final float	MAX_XYZ According to ICC specification (from http://www.color.org) "For the CIEXYZ encoding, each component (X, Y, and Z) is encoded as a u1Fixed15Number". This means that max value for this encoding is 1 + (32767/32768)
private static final float	MAX_SHORT The Constant MAX_SHORT.
private static final float	INV_MAX_SHORT The Constant INV_MAX_SHORT.
private static final float	SHORT2XYZ_FACTOR The Constant SHORT2XYZ_FACTOR.
private static final float	XYZ2SHORT_FACTOR The Constant XYZ2SHORT_FACTOR.
private ICC_Profile	profile The profile.
private float[]	minValues The min values.
private float[]	maxValues The max values.
private org.apache.harmony.awt.gl.color.ICC_Transform	toRGBTransform The to rgb transform.
private org.apache.harmony.awt.gl.color.ICC_Transform	fromRGBTransform The from rgb transform.
private org.apache.harmony.awt.gl.color.ICC_Transform	toXYZTransform The to xyz transform.
private org.apache.harmony.awt.gl.color.ICC_Transform	fromXYZTransform The from xyz transform.
private final org.apache.harmony.awt.gl.color.ColorConverter	converter The converter.
private final org.apache.harmony.awt.gl.color.ColorScaler	scaler The scaler.
private boolean	scalingDataLoaded The scaling data loaded.
private ICC_ColorSpace	resolvedDeserializedInst The resolved deserialized inst.

Constructors Summary

public ICC_ColorSpace(ICC_Profile pf) Instantiates a new ICC color space from an ICC_Profile object. param pf the ICC_Profile object. super(pf.getColorSpaceType(), pf.getNumComponents()); int pfClass = pf.getProfileClass(); switch (pfClass) { case ICC_Profile.CLASS_COLORSPACECONVERSION: case ICC_Profile.CLASS_DISPLAY: case ICC_Profile.CLASS_OUTPUT: case ICC_Profile.CLASS_INPUT: break; // OK, it is color conversion profile default: // awt.168=Invalid profile class. throw new IllegalArgumentException(Messages.getString("awt.168")); //$NON-NLS-1$ } profile = pf; fillMinMaxValues();

Methods Summary
private void	fillMinMaxValues() Fill min max values. int n = getNumComponents(); maxValues = new float[n]; minValues = new float[n]; switch (getType()) { case ColorSpace.TYPE_XYZ: minValues[0] = 0; minValues[1] = 0; minValues[2] = 0; maxValues[0] = MAX_XYZ; maxValues[1] = MAX_XYZ; maxValues[2] = MAX_XYZ; break; case ColorSpace.TYPE_Lab: minValues[0] = 0; minValues[1] = -128; minValues[2] = -128; maxValues[0] = 100; maxValues[1] = 127; maxValues[2] = 127; break; default: for(int i=0; i<n; i++) { minValues[i] = 0; maxValues[i] = 1; } }
public float[]	fromCIEXYZ(float[] xyzvalue) Performs the transformation of a color from the CS_CIEXYZ color space into this ColorSpace. param xyzvalue the float array representing a color in the CS_CIEXYZ color space. return the float array with the transformed color components. if (fromXYZTransform == null) { ICC_Profile xyzProfile = ((ICC_ColorSpace) ColorSpace.getInstance(CS_CIEXYZ)).getProfile(); ICC_Profile[] profiles = {xyzProfile, getProfile()}; try { int[] intents = { ICC_Profile.icPerceptual, ICC_Profile.icRelativeColorimetric}; fromXYZTransform = new ICC_Transform(profiles, intents); } catch (CMMException e) { // No such tag, use what we can fromXYZTransform = new ICC_Transform(profiles); } if (!scalingDataLoaded) { scaler.loadScalingData(this); scalingDataLoaded = true; } } // scale xyz value to short short[] scaledXYZValue = new short[3]; scaledXYZValue[0] = (short)(xyzvalue[0] * XYZ2SHORT_FACTOR + 0.5f); scaledXYZValue[1] = (short)(xyzvalue[1] * XYZ2SHORT_FACTOR + 0.5f); scaledXYZValue[2] = (short)(xyzvalue[2] * XYZ2SHORT_FACTOR + 0.5f); short[] converted = converter.translateColor(fromXYZTransform, scaledXYZValue, null); float[] res = new float[getNumComponents()]; scaler.unscale(res, converted, 0); return res;
public float[]	fromRGB(float[] rgbvalue) Performs the transformation of a color from the RGB color space into this ColorSpace. param rgbvalue the float array representing a color in the RGB color space. return the float array with the transformed color components. if (fromRGBTransform == null) { ICC_Profile sRGBProfile = ((ICC_ColorSpace) ColorSpace.getInstance(CS_sRGB)).getProfile(); ICC_Profile[] profiles = {sRGBProfile, getProfile()}; fromRGBTransform = new ICC_Transform(profiles); if (!scalingDataLoaded) { scaler.loadScalingData(this); scalingDataLoaded = true; } } // scale rgb value to short short[] scaledRGBValue = new short[3]; scaledRGBValue[0] = (short)(rgbvalue[0] * MAX_SHORT + 0.5f); scaledRGBValue[1] = (short)(rgbvalue[1] * MAX_SHORT + 0.5f); scaledRGBValue[2] = (short)(rgbvalue[2] * MAX_SHORT + 0.5f); short[] converted = converter.translateColor(fromRGBTransform, scaledRGBValue, null); float[] res = new float[getNumComponents()]; scaler.unscale(res, converted, 0); return res;
public float	getMaxValue(int component) Gets the maximum normalized color component value for the specified component. param component the component to determine the maximum value. return the maximum normalized value of the component. if ((component < 0) || (component > this.getNumComponents() - 1)) { // awt.169=Component index out of range throw new IllegalArgumentException(Messages.getString("awt.169")); //$NON-NLS-1$ } return maxValues[component];
public float	getMinValue(int component) Gets the minimum normalized color component value for the specified component. param component the component to determine the minimum value. return the minimum normalized value of the component. if ((component < 0) || (component > this.getNumComponents() - 1)) { // awt.169=Component index out of range throw new IllegalArgumentException(Messages.getString("awt.169")); //$NON-NLS-1$ } return minValues[component];
public java.awt.color.ICC_Profile	getProfile() Gets the ICC_Profile for this ICC_ColorSpace. return the ICC_Profile for this ICC_ColorSpace. if (profile instanceof ICC_ProfileStub) { profile = ((ICC_ProfileStub) profile).loadProfile(); } return profile;
private void	readObject(java.io.ObjectInputStream in) Read object. param in the in throws IOException Signals that an I/O exception has occurred. throws ClassNotFoundException the class not found exception ObjectInputStream.GetField fields = in.readFields(); resolvedDeserializedInst = new ICC_ColorSpace((ICC_Profile) fields.get("thisProfile", null)); //$NON-NLS-1$
java.lang.Object	readResolve() Read resolve. return the object throws ObjectStreamException the object stream exception return resolvedDeserializedInst;
public float[]	toCIEXYZ(float[] colorvalue) Performs the transformation of a color from this ColorSpace into the CS_CIEXYZ color space. param colorvalue the color value in this ColorSpace. return the float array with color components in the CS_CIEXYZ color space. if (toXYZTransform == null) { ICC_Profile xyzProfile = ((ICC_ColorSpace) ColorSpace.getInstance(CS_CIEXYZ)).getProfile(); ICC_Profile[] profiles = {getProfile(), xyzProfile}; try { int[] intents = { ICC_Profile.icRelativeColorimetric, ICC_Profile.icPerceptual}; toXYZTransform = new ICC_Transform(profiles, intents); } catch (CMMException e) { // No such tag, use what we can toXYZTransform = new ICC_Transform(profiles); } if (!scalingDataLoaded) { scaler.loadScalingData(this); scalingDataLoaded = true; } } short[] data = new short[getNumComponents()]; scaler.scale(colorvalue, data, 0); short[] converted = converter.translateColor(toXYZTransform, data, null); // unscale to XYZ float[] res = new float[3]; res[0] = ((converted[0] & 0xFFFF)) * SHORT2XYZ_FACTOR; res[1] = ((converted[1] & 0xFFFF)) * SHORT2XYZ_FACTOR; res[2] = ((converted[2] & 0xFFFF)) * SHORT2XYZ_FACTOR; return res;
public float[]	toRGB(float[] colorvalue) Performs the transformation of a color from this ColorSpace into the RGB color space. param colorvalue the color value in this ColorSpace. return the float array with color components in the RGB color space. if (toRGBTransform == null) { ICC_Profile sRGBProfile = ((ICC_ColorSpace) ColorSpace.getInstance(CS_sRGB)).getProfile(); ICC_Profile[] profiles = {getProfile(), sRGBProfile}; toRGBTransform = new ICC_Transform(profiles); if (!scalingDataLoaded) { scaler.loadScalingData(this); scalingDataLoaded = true; } } short[] data = new short[getNumComponents()]; scaler.scale(colorvalue, data, 0); short[] converted = converter.translateColor(toRGBTransform, data, null); // unscale to sRGB float[] res = new float[3]; res[0] = ((converted[0] & 0xFFFF)) * INV_MAX_SHORT; res[1] = ((converted[1] & 0xFFFF)) * INV_MAX_SHORT; res[2] = ((converted[2] & 0xFFFF)) * INV_MAX_SHORT; return res;
private void	writeObject(java.io.ObjectOutputStream out) Write object. param out the out throws IOException Signals that an I/O exception has occurred. ObjectOutputStream.PutField fields = out.putFields(); fields.put("thisProfile", profile); //$NON-NLS-1$ fields.put("minVal", null); //$NON-NLS-1$ fields.put("maxVal", null); //$NON-NLS-1$ fields.put("diffMinMax", null); //$NON-NLS-1$ fields.put("invDiffMinMax", null); //$NON-NLS-1$ fields.put("needScaleInit", true); //$NON-NLS-1$ out.writeFields();