+++ /dev/null
-/* Copyright (C) 2000 Free Software Foundation
-
- This file is part of libgcj.
-
-This software is copyrighted work licensed under the terms of the
-Libgcj License. Please consult the file "LIBGCJ_LICENSE" for
-details. */
-
-package java.awt.image;
-
-import java.awt.Transparency;
-import java.awt.color.ColorSpace;
-import gnu.java.awt.Buffers;
-
-/**
- * @author Rolf W. Rasmussen <rolfwr@ii.uib.no>
- */
-public class IndexColorModel extends ColorModel
-{
- private byte[] r;
- private byte[] g;
- private byte[] b;
- private byte[] a;
- private int[] argb;
- private byte[] cmap;
- private int start;
- private int transparent;
- private int size;
-
- public IndexColorModel(int bits, int size, byte[] r, byte[] g, byte[] b)
- {
- super(bits, nArray(bits, 3),
- ColorSpace.getInstance(ColorSpace.CS_sRGB),
- false, // no transparency
- false, // no premultiplied
- Transparency.OPAQUE,
- Buffers.smallestAppropriateTransferType(bits));
- this.r = r;
- this.g = g;
- this.b = b;
- this.size = size;
- }
-
- public IndexColorModel(int bits, int size, byte[] r, byte[] g, byte[] b,
- int transparent)
- {
- super(bits, nArray(bits, 4),
- ColorSpace.getInstance(ColorSpace.CS_sRGB),
- true, // has transparency
- false,
- Transparency.BITMASK,
- Buffers.smallestAppropriateTransferType(bits));
- this.r = r;
- this.g = g;
- this.b = b;
- this.transparent = transparent;
- this.size = size;
- }
-
- public IndexColorModel(int bits, int size, byte[] r, byte[] g, byte[] b,
- byte[] a)
- {
- super(bits, nArray(bits, 4),
- ColorSpace.getInstance(ColorSpace.CS_sRGB),
- true, // has transparency
- false,
- Transparency.BITMASK,
- Buffers.smallestAppropriateTransferType(bits));
- this.r = r;
- this.g = g;
- this.b = b;
- this.a = a;
- this.size = size;
- }
-
- public IndexColorModel(int bits, int size, byte[] cmap, int start,
- boolean hasAlpha)
- {
- super(bits, nArray(bits, hasAlpha ? 4 : 3),
- ColorSpace.getInstance(ColorSpace.CS_sRGB),
- hasAlpha,
- false,
- hasAlpha ? Transparency.TRANSLUCENT : Transparency.OPAQUE,
- Buffers.smallestAppropriateTransferType(bits));
- this.cmap = cmap;
- this.start = start;
- this.size = size;
- }
-
- public IndexColorModel(int bits, int size, byte[] cmap, int start,
- boolean hasAlpha, int transparent,
- int transferType)
- {
- super(bits, nArray(bits, hasAlpha ? 4 : 3),
- ColorSpace.getInstance(ColorSpace.CS_sRGB),
- hasAlpha,
- false,
- hasAlpha ?
- Transparency.TRANSLUCENT :
- ((transparent < 0) ?
- Transparency.OPAQUE :
- Transparency.BITMASK),
- transferType);
- this.cmap = cmap;
- this.start = start;
- this.size = size;
- }
-
- public final int getMapSize()
- {
- return size;
- }
-
- public final int getTransparentPixel()
- {
- return transparent;
- }
-
- public final void getReds(byte r[])
- {
- if (this.r == null) calcRGBArrays();
- System.arraycopy(this.r, 0, r, 0, getMapSize());
- }
-
- public final void getGreens(byte g[])
- {
- if (this.g == null) calcRGBArrays();
- System.arraycopy(this.g, 0, g, 0, getMapSize());
- }
-
- public final void getBlues(byte b[])
- {
- if (this.b == null) calcRGBArrays();
- System.arraycopy(this.b, 0, b, 0, getMapSize());
- }
-
- public final void getAlphas(byte a[])
- {
- if (this.a == null) calcAlphaArray();
- System.arraycopy(this.a, 0, a, 0, getMapSize());
- }
-
- public final void getRGBs(int rgb[])
- {
- if (this.argb == null) calcARGBArray();
- System.arraycopy(this.argb, 0, rgb, 0, getMapSize());
- }
-
- public int getRed(int pixel)
- {
- try
- {
- return r[pixel];
- }
- catch (NullPointerException npe)
- {
- calcRGBArrays();
- return r[pixel];
- }
- }
-
- public int getGreen(int pixel)
- {
- try
- {
- return g[pixel];
- }
- catch (NullPointerException npe)
- {
- calcRGBArrays();
- return g[pixel];
- }
- }
-
- public int getBlue(int pixel)
- {
- try
- {
- return b[pixel];
- }
- catch (NullPointerException npe)
- {
- calcRGBArrays();
- return b[pixel];
- }
- }
-
- public int getAlpha(int pixel)
- {
- try
- {
- return a[pixel];
- }
- catch (NullPointerException npe)
- {
- calcAlphaArray();
- return a[pixel];
- }
- }
-
- private void calcRGBArrays() {
- int j=0;
- boolean hasAlpha = hasAlpha();
- r = new byte[size];
- g = new byte[size];
- b = new byte[size];
- if (hasAlpha) a = new byte[size];
-
- for (int i=0; i<size; i++)
- {
- r[i] = cmap[j++];
- g[i] = cmap[j++];
- b[i] = cmap[j++];
- if (hasAlpha()) a[i] = cmap[j++];
- }
- }
-
- private void calcAlphaArray()
- {
- int transparency = getTransparency();
- switch (transparency)
- {
- case Transparency.OPAQUE:
- case Transparency.BITMASK:
- a = nArray((byte) 255, size);
- if (transparency == Transparency.BITMASK)
- a[transparent] = 0;
- break;
- case Transparency.TRANSLUCENT:
- calcRGBArrays();
- }
- }
-
- private void calcARGBArray()
- {
- int mapSize = getMapSize();
- argb = new int[mapSize];
- for (int p=0; p<mapSize; p++) argb[p] = getRGB(p);
- }
-
- public int getRed(Object inData)
- {
- return getRed(getPixelFromArray(inData));
- }
-
- public int getGreen(Object inData)
- {
- return getGreen(getPixelFromArray(inData));
- }
-
- public int getBlue(Object inData)
- {
- return getBlue(getPixelFromArray(inData));
- }
-
- public int getAlpha(Object inData)
- {
- return getAlpha(getPixelFromArray(inData));
- }
-
- public int getRGB(Object inData)
- {
- return getRGB(getPixelFromArray(inData));
- }
-
- public Object getDataElements(int rgb, Object pixel)
- {
- int av, rv, gv, bv;
- // using 8 bit values
- av = (rgb >>> 24) & 0xff;
- rv = (rgb >>> 16) & 0xff;
- gv = (rgb >>> 8) & 0xff;
- bv = (rgb >>> 0) & 0xff;
-
- int pixelValue = getPixelValue(av, rv, gv, bv);
-
- /* In this color model, the whole pixel fits in the first element
- of the array. */
- DataBuffer buffer = Buffers.createBuffer(transferType, pixel, 1);
- buffer.setElem(0, pixelValue);
- return Buffers.getData(buffer);
- }
-
- private int getPixelValue(int av, int rv, int gv, int bv)
- {
- if (r == null) calcRGBArrays();
- if (a == null) calcAlphaArray();
-
- int minDAlpha = 1<<8;
- int minDRGB = (1<<8)*(1<<8)*3;
- int pixelValue = -1;
- for (int i=0; i<size; i++)
- {
- int dAlpha = Math.abs(av-(a[i]&0xff));
- if (dAlpha > minDAlpha) continue;
- int dR = rv-(r[i]&0xff);
- int dG = gv-(g[i]&0xff);
- int dB = bv-(b[i]&0xff);
- int dRGB = dR*dR + dG*dG + dB*dB;
-
- if (dRGB >= minDRGB) continue;
-
- pixelValue = i;
- minDRGB = dRGB;
- }
- return pixelValue;
- }
-
- public int[] getComponents(int pixel, int[] components, int offset)
- {
- int numComponents = getNumComponents();
- if (components == null) components = new int[offset + numComponents];
- components[offset++] = (r[pixel]&0xff);
- components[offset++] = (g[pixel]&0xff);
- components[offset++] = (b[pixel]&0xff);
- if (hasAlpha()) components[offset++] = (a[pixel]&0xff);
- return components;
- }
-
- public final int[] getComponents(Object pixel, int[] components,
- int offset)
- {
- return getComponents(getPixelFromArray(pixel), components, offset);
- }
-
- public int getDataElement(int[] components, int offset)
- {
- int r = components[offset++];
- int g = components[offset++];
- int b = components[offset++];
- int a = hasAlpha() ? components[offset++] : 255;
-
- return getPixelValue(a, r, g, b);
- }
-
- public Object getDataElements(int[] components, int offset, Object pixel)
- {
- int pixelValue = getDataElement(components, offset);
-
- /* In this color model, the whole pixel fits in the first element
- of the array. */
- DataBuffer buffer = Buffers.createBuffer(transferType, pixel, 1);
- buffer.setElem(0, pixelValue);
- return Buffers.getData(buffer);
- }
-
- public SampleModel createCompatibleSampleModel(int w, int h)
- {
- int[] bandOffsets = {0};
- return new ComponentSampleModel(transferType, w, h,
- 1, // pixel stride
- w, // scanline stride
- bandOffsets);
- }
-}
projects / msp430-gcc.git / blobdiff