/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/**
* @author Igor V. Stolyarov
*/
package com.google.code.appengine.awt.image;
import java.util.Arrays;
import org.apache.harmony.awt.internal.nls.Messages;
import com.google.code.appengine.awt.Transparency;
import com.google.code.appengine.awt.color.ColorSpace;
import com.google.code.appengine.awt.image.ColorModel;
import com.google.code.appengine.awt.image.DataBuffer;
import com.google.code.appengine.awt.image.DirectColorModel;
import com.google.code.appengine.awt.image.Raster;
import com.google.code.appengine.awt.image.SampleModel;
import com.google.code.appengine.awt.image.WritableRaster;
public abstract class ColorModel implements Transparency {
protected int pixel_bits; // Pixel length in bits
protected int transferType;
ColorSpace cs;
boolean hasAlpha;
boolean isAlphaPremultiplied;
int transparency;
int numColorComponents;
int numComponents;
int[] bits; // Array of components masks
int[] maxValues = null; // Max values that may be represent by color
// components
int maxBitLength; // Max length color components in bits
private static ColorModel RGBdefault;
protected ColorModel(int pixel_bits, int[] bits, ColorSpace cspace,
boolean hasAlpha, boolean isAlphaPremultiplied, int transparency,
int transferType) {
if (pixel_bits < 1) {
// awt.26B=The number of bits in the pixel values is less than 1
throw new IllegalArgumentException(Messages.getString("awt.26B")); //$NON-NLS-1$
}
if (bits == null) {
// awt.26C=bits is null
throw new NullPointerException(Messages.getString("awt.26C")); //$NON-NLS-1$
}
int sum = 0;
for (int element : bits) {
if (element < 0) {
// awt.26D=The elements in bits is less than 0
throw new IllegalArgumentException(Messages.getString("awt.26D")); //$NON-NLS-1$
}
sum += element;
}
if (sum < 1) {
// awt.26E=The sum of the number of bits in bits is less than 1
throw new NullPointerException(Messages.getString("awt.26E")); //$NON-NLS-1$
}
if (cspace == null) {
// awt.26F=The cspace is null
throw new IllegalArgumentException(Messages.getString("awt.26F")); //$NON-NLS-1$
}
if (transparency < Transparency.OPAQUE ||
transparency > Transparency.TRANSLUCENT) {
// awt.270=The transparency is not a valid value
throw new IllegalArgumentException(Messages.getString("awt.270")); //$NON-NLS-1$
}
this.pixel_bits = pixel_bits;
this.bits = bits.clone();
maxValues = new int[bits.length];
maxBitLength = 0;
for (int i = 0; i < maxValues.length; i++) {
maxValues[i] = (1 << bits[i]) - 1;
if (bits[i] > maxBitLength) {
maxBitLength = bits[i];
}
}
cs = cspace;
this.hasAlpha = hasAlpha;
this.isAlphaPremultiplied = isAlphaPremultiplied;
numColorComponents = cs.getNumComponents();
if (hasAlpha) {
numComponents = numColorComponents + 1;
} else {
numComponents = numColorComponents;
}
this.transparency = transparency;
this.transferType = transferType;
}
public ColorModel(int bits) {
if (bits < 1) {
// awt.271=The number of bits in bits is less than 1
throw new IllegalArgumentException(Messages.getString("awt.271")); //$NON-NLS-1$
}
pixel_bits = bits;
transferType = getTransferType(bits);
cs = ColorSpace.getInstance(ColorSpace.CS_sRGB);
hasAlpha = true;
isAlphaPremultiplied = false;
transparency = Transparency.TRANSLUCENT;
numColorComponents = 3;
numComponents = 4;
this.bits = null;
}
public Object getDataElements(int[] components, int offset, Object obj) {
throw new UnsupportedOperationException("This method is not " + //$NON-NLS-1$
"supported by this ColorModel"); //$NON-NLS-1$
}
public Object getDataElements(float[] normComponents, int normOffset,
Object obj) {
int unnormComponents[] = getUnnormalizedComponents(normComponents,
normOffset, null, 0);
return getDataElements(unnormComponents, 0, obj);
}
public Object getDataElements(int rgb, Object pixel) {
throw new UnsupportedOperationException("This method is not " + //$NON-NLS-1$
"supported by this ColorModel"); //$NON-NLS-1$
}
public WritableRaster getAlphaRaster(WritableRaster raster) {
return null;
}
public ColorModel coerceData(WritableRaster raster,
boolean isAlphaPremultiplied) {
throw new UnsupportedOperationException("This method is not " + //$NON-NLS-1$
"supported by this ColorModel"); //$NON-NLS-1$
}
@Override
public String toString() {
// The output format based on 1.5 release behaviour.
// It could be reveled such way:
// ColorModel cm = new ComponentColorModel(ColorSpace.getInstance(ColorSpace.CS_sRGB,
// false, false, Transparency.OPAQUE, DataBuffer.TYPE_BYTE);
// System.out.println(cm.toString());
return "ColorModel: Color Space = " + cs.toString() + "; has alpha = " //$NON-NLS-1$ //$NON-NLS-2$
+ hasAlpha + "; is alpha premultipied = " //$NON-NLS-1$
+ isAlphaPremultiplied + "; transparency = " + transparency //$NON-NLS-1$
+ "; number color components = " + numColorComponents //$NON-NLS-1$
+ "; pixel bits = " + pixel_bits + "; transfer type = " //$NON-NLS-1$ //$NON-NLS-2$
+ transferType;
}
public int[] getComponents(Object pixel, int[] components, int offset) {
throw new UnsupportedOperationException("This method is not " + //$NON-NLS-1$
"supported by this ColorModel"); //$NON-NLS-1$
}
public float[] getNormalizedComponents(Object pixel,
float[] normComponents, int normOffset) {
if (pixel == null) {
// awt.294=pixel is null
throw new NullPointerException(Messages.getString("awt.294")); //$NON-NLS-1$
}
int unnormComponents[] = getComponents(pixel, null, 0);
return getNormalizedComponents(unnormComponents, 0, normComponents,
normOffset);
}
@Override
public boolean equals(Object obj) {
if (!(obj instanceof ColorModel)) {
return false;
}
ColorModel cm = (ColorModel) obj;
return (pixel_bits == cm.getPixelSize() &&
transferType == cm.getTransferType() &&
cs.getType() == cm.getColorSpace().getType() &&
hasAlpha == cm.hasAlpha() &&
isAlphaPremultiplied == cm.isAlphaPremultiplied() &&
transparency == cm.getTransparency() &&
numColorComponents == cm.getNumColorComponents() &&
numComponents == cm.getNumComponents() &&
Arrays.equals(bits, cm.getComponentSize()));
}
public int getRed(Object inData) {
return getRed(constructPixel(inData));
}
public int getRGB(Object inData) {
return (getAlpha(inData) << 24 | getRed(inData) << 16 |
getGreen(inData) << 8 | getBlue(inData));
}
public int getGreen(Object inData) {
return getGreen(constructPixel(inData));
}
public int getBlue(Object inData) {
return getBlue(constructPixel(inData));
}
public int getAlpha(Object inData) {
return getAlpha(constructPixel(inData));
}
public WritableRaster createCompatibleWritableRaster(int w, int h) {
throw new UnsupportedOperationException("This method is not " + //$NON-NLS-1$
"supported by this ColorModel"); //$NON-NLS-1$
}
public boolean isCompatibleSampleModel(SampleModel sm) {
throw new UnsupportedOperationException("This method is not " + //$NON-NLS-1$
"supported by this ColorModel"); //$NON-NLS-1$
}
public SampleModel createCompatibleSampleModel(int w, int h) {
throw new UnsupportedOperationException("This method is not " + //$NON-NLS-1$
"supported by this ColorModel"); //$NON-NLS-1$
}
public boolean isCompatibleRaster(Raster raster) {
throw new UnsupportedOperationException("This method is not " + //$NON-NLS-1$
"supported by this ColorModel"); //$NON-NLS-1$
}
public final ColorSpace getColorSpace() {
return cs;
}
public float[] getNormalizedComponents(int[] components, int offset,
float normComponents[], int normOffset) {
if (bits == null) {
// awt.26C=bits is null
throw new UnsupportedOperationException(Messages.getString("awt.26C")); //$NON-NLS-1$
}
if (normComponents == null) {
normComponents = new float[numComponents + normOffset];
}
if (hasAlpha && isAlphaPremultiplied) {
float normAlpha =
(float) components[offset + numColorComponents] /
maxValues[numColorComponents];
if (normAlpha != 0.0f) {
for (int i = 0; i < numColorComponents; i++) {
normComponents[normOffset + i] =
components[offset + i] /
(normAlpha * maxValues[i]);
}
normComponents[normOffset + numColorComponents] = normAlpha;
} else {
for (int i = 0; i < numComponents; i++) {
normComponents[normOffset + i] = 0.0f;
}
}
} else {
for (int i = 0; i < numComponents; i++) {
normComponents[normOffset + i] =
(float) components[offset + i] /
maxValues[i];
}
}
return normComponents;
}
public int getDataElement(int[] components, int offset) {
throw new UnsupportedOperationException("This method is not " + //$NON-NLS-1$
"supported by this ColorModel"); //$NON-NLS-1$
}
public int[] getUnnormalizedComponents(float normComponents[],
int normOffset, int components[], int offset) {
if (bits == null) {
// awt.26C=bits is null
throw new UnsupportedOperationException(Messages.getString("awt.26C")); //$NON-NLS-1$
}
if (normComponents.length - normOffset < numComponents) {
// awt.273=The length of normComponents minus normOffset is less than numComponents
throw new IllegalArgumentException(Messages.getString("awt.273")); //$NON-NLS-1$
}
if (components == null) {
components = new int[numComponents + offset];
} else {
if (components.length - offset < numComponents) {
// awt.272=The length of components minus offset is less than numComponents
throw new IllegalArgumentException(Messages.getString("awt.272")); //$NON-NLS-1$
}
}
if (hasAlpha && isAlphaPremultiplied) {
float alpha = normComponents[normOffset + numColorComponents];
for (int i = 0; i < numColorComponents; i++) {
components[offset + i] = (int) (normComponents[normOffset + i]
* maxValues[i] * alpha + 0.5f);
}
components[offset + numColorComponents] =
(int) (normComponents[normOffset + numColorComponents] *
maxValues[numColorComponents] + 0.5f);
} else {
for (int i = 0; i < numComponents; i++) {
components[offset + i] =
(int) (normComponents[normOffset + i] *
maxValues[i] + 0.5f);
}
}
return components;
}
public int getDataElement(float normComponents[], int normOffset) {
int unnormComponents[] = getUnnormalizedComponents(normComponents,
normOffset, null, 0);
return getDataElement(unnormComponents, 0);
}
public int[] getComponents(int pixel, int components[], int offset) {
throw new UnsupportedOperationException("This method is not " + //$NON-NLS-1$
"supported by this ColorModel"); //$NON-NLS-1$
}
public abstract int getRed(int pixel);
public int getRGB(int pixel) {
return (getAlpha(pixel) << 24 | getRed(pixel) << 16
| getGreen(pixel) << 8 | getBlue(pixel));
}
public abstract int getGreen(int pixel);
public int getComponentSize(int componentIdx) {
if (bits == null) {
// awt.26C=bits is null
throw new NullPointerException(Messages.getString("awt.26C")); //$NON-NLS-1$
}
if (componentIdx < 0 || componentIdx >= bits.length) {
// awt.274=componentIdx is greater than the number of components or less than zero
throw new ArrayIndexOutOfBoundsException(Messages.getString("awt.274")); //$NON-NLS-1$
}
return bits[componentIdx];
}
public abstract int getBlue(int pixel);
public abstract int getAlpha(int pixel);
public int[] getComponentSize() {
if (bits != null) {
return bits.clone();
}
return null;
}
public final boolean isAlphaPremultiplied() {
return isAlphaPremultiplied;
}
public final boolean hasAlpha() {
return hasAlpha;
}
@Override
public int hashCode() {
int hash = 0;
int tmp;
if (hasAlpha) {
hash ^= 1;
hash <<= 8;
}
if (isAlphaPremultiplied) {
hash ^= 1;
hash <<= 8;
}
tmp = hash >>> 24;
hash ^= numColorComponents;
hash <<= 8;
hash |= tmp;
tmp = hash >>> 24;
hash ^= transparency;
hash <<= 8;
hash |= tmp;
tmp = hash >>> 24;
hash ^= cs.getType();
hash <<= 8;
hash |= tmp;
tmp = hash >>> 24;
hash ^= pixel_bits;
hash <<= 8;
hash |= tmp;
tmp = hash >>> 24;
hash ^= transferType;
hash <<= 8;
hash |= tmp;
if (bits != null) {
for (int element : bits) {
tmp = hash >>> 24;
hash ^= element;
hash <<= 8;
hash |= tmp;
}
}
return hash;
}
public int getTransparency() {
return transparency;
}
public final int getTransferType() {
return transferType;
}
public int getPixelSize() {
return pixel_bits;
}
public int getNumComponents() {
return numComponents;
}
public int getNumColorComponents() {
return numColorComponents;
}
public static ColorModel getRGBdefault() {
if (RGBdefault == null) {
RGBdefault = new DirectColorModel(32, 0x00ff0000, 0x0000ff00,
0x000000ff, 0xff000000);
}
return RGBdefault;
}
/*
* Construct INT pixel representation from Object
* @param obj
*
* @return
*/
private int constructPixel(Object obj) {
int pixel = 0;
switch (getTransferType()) {
case DataBuffer.TYPE_BYTE:
byte[] bPixel = (byte[]) obj;
if(bPixel.length > 1) {
// awt.275=This pixel representation is not suuported by tis Color Model
throw new UnsupportedOperationException(Messages.getString("awt.275")); //$NON-NLS-1$
}
pixel = bPixel[0] & 0xff;
break;
case DataBuffer.TYPE_USHORT:
short[] sPixel = (short[]) obj;
if(sPixel.length > 1) {
// awt.275=This pixel representation is not suuported by tis Color Model
throw new UnsupportedOperationException(Messages.getString("awt.275")); //$NON-NLS-1$
}
pixel = sPixel[0] & 0xffff;
break;
case DataBuffer.TYPE_INT:
int[] iPixel = (int[]) obj;
if(iPixel.length > 1) {
// awt.275=This pixel representation is not suuported by tis Color Model
throw new UnsupportedOperationException(Messages.getString("awt.275")); //$NON-NLS-1$
}
pixel = iPixel[0];
break;
default:
// awt.22D=This transferType ( {0} ) is not supported by this color model
throw new UnsupportedOperationException(Messages.getString("awt.22D", //$NON-NLS-1$
transferType));
}
return pixel;
}
static int getTransferType(int bits) {
if (bits <= 8) {
return DataBuffer.TYPE_BYTE;
} else if (bits <= 16) {
return DataBuffer.TYPE_USHORT;
} else if (bits <= 32) {
return DataBuffer.TYPE_INT;
} else {
return DataBuffer.TYPE_UNDEFINED;
}
}
@Override
public void finalize() {
// This method is added for the API compatibility
// Don't need to call super since Object's finalize is always empty
}
}