java.awt.image.BufferedImage#TYPE_BYTE_INDEXED源码实例Demo

public void doTest(int type) {
    System.out.println("Test for type " + describeType(type));

    BufferedImage src = createTestImage(type);

    BufferedImage res = null;

    System.out.println("Testing null destination...");
    try {
        res = op.filter(src, null);
    } catch (ImagingOpException e) {
        throw new RuntimeException("Test FAILED!", e);
    }

    if (res == null ||
        ((src.getType() != BufferedImage.TYPE_BYTE_INDEXED) &&
         (res.getType() != src.getType())))
    {
        throw new RuntimeException("Test FAILED!");
    }
    System.out.println("Test PASSED.");
}
 

private static String describeType(int type) {
    switch(type) {
    case BufferedImage.TYPE_3BYTE_BGR:
        return "TYPE_3BYTE_BGR";
    case BufferedImage.TYPE_4BYTE_ABGR:
        return "TYPE_4BYTE_ABGR";
    case BufferedImage.TYPE_BYTE_GRAY:
        return "TYPE_BYTE_GRAY";
    case BufferedImage.TYPE_INT_ARGB:
        return "TYPE_INT_ARGB";
    case BufferedImage.TYPE_INT_BGR:
        return  "TYPE_INT_BGR";
    case BufferedImage.TYPE_INT_RGB:
        return "TYPE_INT_RGB";
    case BufferedImage.TYPE_BYTE_INDEXED:
        return "TYPE_BYTE_INDEXED";
    default:
        throw new RuntimeException("Test FAILED: unknown type " + type);
    }
}
 

public void doTest(int type) {
    System.out.println("Test for type " + describeType(type));

    BufferedImage src = createTestImage(type);

    BufferedImage res = null;

    System.out.println("Testing null destination...");
    try {
        res = op.filter(src, null);
    } catch (ImagingOpException e) {
        throw new RuntimeException("Test FAILED!", e);
    }

    if (res == null ||
        ((src.getType() != BufferedImage.TYPE_BYTE_INDEXED) &&
         (res.getType() != src.getType())))
    {
        throw new RuntimeException("Test FAILED!");
    }
    System.out.println("Test PASSED.");
}
 

/**
 * 生成产品关键特征
 *
 * @param attribute
 * @param out
 * @throws java.io.IOException
 */
public static void MakeProductAttribute(String attribute, OutputStream out)
        throws IOException {
    int height = 22;
    BufferedImage bi = new BufferedImage(255, height,
            BufferedImage.TYPE_INT_RGB);
    Graphics2D g = (Graphics2D) bi.getGraphics();
    Font mFont = new Font("宋体", Font.BOLD, 13);
    g.setFont(mFont);
    g.drawString(new String(attribute), 2, 19);
    FontMetrics fm = g.getFontMetrics();
    int new_width = fm.charsWidth(attribute.toCharArray(), 0,
            attribute.length()) + 4;
    int new_height = fm.getHeight();
    BufferedImage nbi = new BufferedImage(new_width, new_height,
            BufferedImage.TYPE_BYTE_INDEXED, icm);
    Graphics2D g2 = (Graphics2D) nbi.getGraphics();
    g2.setColor(new Color(0, 0, 0, 0));// 透明
    g2.fillRect(0, 0, new_width, new_height);
    g2.setFont(mFont);
    g2.setColor(new Color(200, 0, 0));
    g2.drawString(attribute, 2, new_height - 4);
    ImageIO.write(nbi, "gif", out);
}
 

protected BufferedImage createTestImage(int numColors) {

        IndexColorModel icm = createTestICM(numColors);
        int w = numColors * 10;
        int h = 20;

        BufferedImage img = new BufferedImage(w, h,
                BufferedImage.TYPE_BYTE_INDEXED, icm);

        Graphics2D g = img.createGraphics();
        for (int i = 0; i < numColors; i++) {
            int rgb = icm.getRGB(i);
            //System.out.printf("pixel %d, rgb %x\n", i, rgb);
            g.setColor(new Color(rgb));
            g.fillRect(i * 10, 0, w - i * 10, h);
        }
        g.dispose();

       return img;
    }
 

private static String describeType(int type) {
    switch(type) {
    case BufferedImage.TYPE_3BYTE_BGR:
        return "TYPE_3BYTE_BGR";
    case BufferedImage.TYPE_4BYTE_ABGR:
        return "TYPE_4BYTE_ABGR";
    case BufferedImage.TYPE_BYTE_GRAY:
        return "TYPE_BYTE_GRAY";
    case BufferedImage.TYPE_INT_ARGB:
        return "TYPE_INT_ARGB";
    case BufferedImage.TYPE_INT_BGR:
        return  "TYPE_INT_BGR";
    case BufferedImage.TYPE_INT_RGB:
        return "TYPE_INT_RGB";
    case BufferedImage.TYPE_BYTE_INDEXED:
        return "TYPE_BYTE_INDEXED";
    default:
        throw new RuntimeException("Test FAILED: unknown type " + type);
    }
}
 

private static String describeType(int type) {
    switch(type) {
    case BufferedImage.TYPE_3BYTE_BGR:
        return "TYPE_3BYTE_BGR";
    case BufferedImage.TYPE_4BYTE_ABGR:
        return "TYPE_4BYTE_ABGR";
    case BufferedImage.TYPE_BYTE_GRAY:
        return "TYPE_BYTE_GRAY";
    case BufferedImage.TYPE_INT_ARGB:
        return "TYPE_INT_ARGB";
    case BufferedImage.TYPE_INT_BGR:
        return  "TYPE_INT_BGR";
    case BufferedImage.TYPE_INT_RGB:
        return "TYPE_INT_RGB";
    case BufferedImage.TYPE_BYTE_INDEXED:
        return "TYPE_BYTE_INDEXED";
    default:
        throw new RuntimeException("Test FAILED: unknown type " + type);
    }
}
 

protected RenderedImage getIndexedImage() {
    IndexColorModel icm = getIndexColorModel();

    BufferedImage dst =
        new BufferedImage(src.getWidth(), src.getHeight(),
                          BufferedImage.TYPE_BYTE_INDEXED, icm);

    WritableRaster wr = dst.getRaster();
    for (int y =0; y < dst.getHeight(); y++) {
        for (int x = 0; x < dst.getWidth(); x++) {
            Color aColor = getSrcColor(x,y);
            wr.setSample(x, y, 0, findColorIndex(root, aColor));
        }
    }

    return dst;
}
 

public void doTest(int type) {
    System.out.println("Test for type " + describeType(type));

    BufferedImage src = createTestImage(type);

    BufferedImage res = null;

    System.out.println("Testing null destination...");
    try {
        res = op.filter(src, null);
    } catch (ImagingOpException e) {
        throw new RuntimeException("Test FAILED!", e);
    }

    if (res == null ||
        ((src.getType() != BufferedImage.TYPE_BYTE_INDEXED) &&
         (res.getType() != src.getType())))
    {
        throw new RuntimeException("Test FAILED!");
    }
    System.out.println("Test PASSED.");
}
 

private static synchronized byte[] getDefaultPalette() {
    if (defaultPalette == null) {
        BufferedImage img = new BufferedImage(1, 1,
                BufferedImage.TYPE_BYTE_INDEXED);
        IndexColorModel icm = (IndexColorModel) img.getColorModel();

        final int size = icm.getMapSize();
        byte[] r = new byte[size];
        byte[] g = new byte[size];
        byte[] b = new byte[size];
        icm.getReds(r);
        icm.getGreens(g);
        icm.getBlues(b);

        defaultPalette = new byte[size * 3];

        for (int i = 0; i < size; i++) {
            defaultPalette[3 * i + 0] = r[i];
            defaultPalette[3 * i + 1] = g[i];
            defaultPalette[3 * i + 2] = b[i];
        }
    }
    return defaultPalette;
}
 

protected BufferedImage createTestImage(int numColors) {

        IndexColorModel icm = createTestICM(numColors);
        int w = numColors * 10;
        int h = 20;

        BufferedImage img = new BufferedImage(w, h,
                BufferedImage.TYPE_BYTE_INDEXED, icm);

        Graphics2D g = img.createGraphics();
        for (int i = 0; i < numColors; i++) {
            int rgb = icm.getRGB(i);
            //System.out.printf("pixel %d, rgb %x\n", i, rgb);
            g.setColor(new Color(rgb));
            g.fillRect(i * 10, 0, w - i * 10, h);
        }
        g.dispose();

       return img;
    }
 

private BufferedImage createIndexImage(int bpp) {
    // calculate palette size
    int psize = (1 << bpp);

    // prepare palette;
    byte[] r = new byte[psize];
    byte[] g = new byte[psize];
    byte[] b = new byte[psize];

    for (int i = 0; i < colors.length; i++) {
        r[i] = (byte)(0xff & colors[i].getRed());
        g[i] = (byte)(0xff & colors[i].getGreen());
        b[i] = (byte)(0xff & colors[i].getBlue());
    }

    // now prepare appropriate index clor model
    IndexColorModel icm = new IndexColorModel(bpp, psize, r, g, b);

    return new BufferedImage(w, h, BufferedImage.TYPE_BYTE_INDEXED, icm);
}
 

private static String describeType(int type) {
    switch(type) {
    case BufferedImage.TYPE_3BYTE_BGR:
        return "TYPE_3BYTE_BGR";
    case BufferedImage.TYPE_4BYTE_ABGR:
        return "TYPE_4BYTE_ABGR";
    case BufferedImage.TYPE_BYTE_GRAY:
        return "TYPE_BYTE_GRAY";
    case BufferedImage.TYPE_INT_ARGB:
        return "TYPE_INT_ARGB";
    case BufferedImage.TYPE_INT_BGR:
        return  "TYPE_INT_BGR";
    case BufferedImage.TYPE_INT_RGB:
        return "TYPE_INT_RGB";
    case BufferedImage.TYPE_BYTE_INDEXED:
        return "TYPE_BYTE_INDEXED";
    default:
        throw new RuntimeException("Test FAILED: unknown type " + type);
    }
}
 

private String getImageTypeName(int t) {
    switch(t) {
      case BufferedImage.TYPE_INT_RGB:
          return "TYPE_INT_RGB";
      case BufferedImage.TYPE_INT_BGR:
          return "TYPE_INT_BGR";
      case TYPE_INT_GRB:
          return "TYPE_INT_GRB";
      case TYPE_INT_GBR:
          return "TYPE_INT_GBR";
      case TYPE_INT_RBG:
          return "TYPE_INT_RBG";
      case TYPE_INT_BRG:
          return "TYPE_INT_BRG";
      case BufferedImage.TYPE_USHORT_555_RGB:
          return "TYPE_USHORT_555_RGB";
      case BufferedImage.TYPE_USHORT_565_RGB:
          return "TYPE_USHORT_565_RGB";
      case TYPE_USHORT_555_GRB:
          return "TYPE_USHORT_555_GRB";
      case TYPE_USHORT_555_BGR:
          return "TYPE_USHORT_555_BGR";
      case TYPE_USHORT_565_BGR:
          return "TYPE_USHORT_565_BGR";
      case BufferedImage.TYPE_3BYTE_BGR:
          return "TYPE_3BYTE_BGR";
      case TYPE_3BYTE_RGB:
          return "TYPE_3BYTE_RGB";
      case TYPE_3BYTE_GRB:
          return "TYPE_3BYTE_GRB";
      case BufferedImage.TYPE_BYTE_INDEXED:
          return "TYPE_BYTE_INDEXED";
      case TYPE_4BPP_INDEXED:
          return "TYPE_BYTE_INDEXED (4bpp)";
      default:
          throw new IllegalArgumentException("Unknown image type: " + t);
    }
}
 

public static BufferedImage createTestImage() {
    BufferedImage img = new BufferedImage(100, 100, BufferedImage.TYPE_BYTE_INDEXED);
    Graphics g = img.createGraphics();
    g.setColor(Color.black);
    g.fillRect(0, 0, 100, 100);

    g.setColor(Color.white);
    g.fillRect(10, 10, 80, 80);

    return img;
}
 

static IndexColorModel createIndexColorModel() {
    BufferedImage ex = new BufferedImage(1, 1, BufferedImage.TYPE_BYTE_INDEXED);
    IndexColorModel icm = (IndexColorModel) ex.getColorModel();
    int SIZE = 256;
    byte[] r = new byte[SIZE];
    byte[] g = new byte[SIZE];
    byte[] b = new byte[SIZE];
    byte[] a = new byte[SIZE];
    icm.getReds(r);
    icm.getGreens(g);
    icm.getBlues(b);
    java.util.Arrays.fill(a, (byte)255);
    r[0] = g[0] = b[0] = a[0] = 0; //transparent
    return new IndexColorModel(8, SIZE, r, g, b, a);
}
 

public static void init() {
    pixelroot = new Group("pixel", "Pixel Access Benchmarks");

    pixeloptroot = new Group(pixelroot, "opts", "Pixel Access Options");
    doRenderTo = new Option.Toggle(pixeloptroot, "renderto",
                                   "Render to Image before test",
                                   Option.Toggle.Off);
    doRenderFrom = new Option.Toggle(pixeloptroot, "renderfrom",
                                     "Render from Image before test",
                                     Option.Toggle.Off);

    // BufferedImage Sources
    bufimgsrcroot = new Group.EnableSet(pixelroot, "src",
                                        "BufferedImage Sources");
    new BufImg(BufferedImage.TYPE_BYTE_BINARY, 1);
    new BufImg(BufferedImage.TYPE_BYTE_BINARY, 2);
    new BufImg(BufferedImage.TYPE_BYTE_BINARY, 4);
    new BufImg(BufferedImage.TYPE_BYTE_INDEXED);
    new BufImg(BufferedImage.TYPE_BYTE_GRAY);
    new BufImg(BufferedImage.TYPE_USHORT_555_RGB);
    new BufImg(BufferedImage.TYPE_USHORT_565_RGB);
    new BufImg(BufferedImage.TYPE_USHORT_GRAY);
    new BufImg(BufferedImage.TYPE_3BYTE_BGR);
    new BufImg(BufferedImage.TYPE_4BYTE_ABGR);
    new BufImg(BufferedImage.TYPE_INT_RGB);
    new BufImg(BufferedImage.TYPE_INT_BGR);
    new BufImg(BufferedImage.TYPE_INT_ARGB);

    // BufferedImage Tests
    bufimgtestroot = new Group(pixelroot, "bimgtests",
                               "BufferedImage Tests");
    new BufImgTest.GetRGB();
    new BufImgTest.SetRGB();

    // Raster Tests
    rastertestroot = new Group(pixelroot, "rastests",
                               "Raster Tests");
    new RasTest.GetDataElements();
    new RasTest.SetDataElements();
    new RasTest.GetPixel();
    new RasTest.SetPixel();

    // DataBuffer Tests
    dbtestroot = new Group(pixelroot, "dbtests",
                           "DataBuffer Tests");
    new DataBufTest.GetElem();
    new DataBufTest.SetElem();
}
 

public static PixelFormat getPixelFormat(BufferedImage image) {
	switch (image.getType()) {
		case BufferedImage.TYPE_3BYTE_BGR:
			return PixelFormat.BGR24;

		case BufferedImage.TYPE_4BYTE_ABGR:
		case BufferedImage.TYPE_4BYTE_ABGR_PRE:
			return PixelFormat.ABGR;

		case BufferedImage.TYPE_BYTE_BINARY:
			return PixelFormat.RGB444;

		case BufferedImage.TYPE_BYTE_INDEXED:
			return PixelFormat.RGB555;

		case BufferedImage.TYPE_BYTE_GRAY:
			return PixelFormat.GRAY8;

		case BufferedImage.TYPE_INT_ARGB:
		case BufferedImage.TYPE_INT_ARGB_PRE:
			return PixelFormat.ARGB;

		case BufferedImage.TYPE_INT_RGB:
			return PixelFormat.RGB24;

		case BufferedImage.TYPE_USHORT_GRAY:
			return PixelFormat.GRAY16;

		case BufferedImage.TYPE_USHORT_555_RGB:
			return PixelFormat.RGB555;

		case BufferedImage.TYPE_USHORT_565_RGB:
			return PixelFormat.RGB565;

		case BufferedImage.TYPE_CUSTOM:
			return null;

		default:
			return null;
	}
}
 

/**
 * Returns an <code>ImageTypeSpecifier</code> that encodes
 * one of the standard <code>BufferedImage</code> types
 * (other than <code>TYPE_CUSTOM</code>).
 *
 * @param bufferedImageType an int representing one of the standard
 * <code>BufferedImage</code> types.
 *
 * @return an <code>ImageTypeSpecifier</code> with the desired
 * characteristics.
 *
 * @exception IllegalArgumentException if
 * <code>bufferedImageType</code> is not one of the standard
 * types, or is equal to <code>TYPE_CUSTOM</code>.
 *
 * @see java.awt.image.BufferedImage
 * @see java.awt.image.BufferedImage#TYPE_INT_RGB
 * @see java.awt.image.BufferedImage#TYPE_INT_ARGB
 * @see java.awt.image.BufferedImage#TYPE_INT_ARGB_PRE
 * @see java.awt.image.BufferedImage#TYPE_INT_BGR
 * @see java.awt.image.BufferedImage#TYPE_3BYTE_BGR
 * @see java.awt.image.BufferedImage#TYPE_4BYTE_ABGR
 * @see java.awt.image.BufferedImage#TYPE_4BYTE_ABGR_PRE
 * @see java.awt.image.BufferedImage#TYPE_USHORT_565_RGB
 * @see java.awt.image.BufferedImage#TYPE_USHORT_555_RGB
 * @see java.awt.image.BufferedImage#TYPE_BYTE_GRAY
 * @see java.awt.image.BufferedImage#TYPE_USHORT_GRAY
 * @see java.awt.image.BufferedImage#TYPE_BYTE_BINARY
 * @see java.awt.image.BufferedImage#TYPE_BYTE_INDEXED
 */
public static
    ImageTypeSpecifier createFromBufferedImageType(int bufferedImageType) {
    if (bufferedImageType >= BufferedImage.TYPE_INT_RGB &&
        bufferedImageType <= BufferedImage.TYPE_BYTE_INDEXED) {
        return getSpecifier(bufferedImageType);
    } else if (bufferedImageType == BufferedImage.TYPE_CUSTOM) {
        throw new IllegalArgumentException("Cannot create from TYPE_CUSTOM!");
    } else {
        throw new IllegalArgumentException("Invalid BufferedImage type!");
    }
}
 

/**
 * Returns an {@code ImageTypeSpecifier} that encodes
 * one of the standard {@code BufferedImage} types
 * (other than {@code TYPE_CUSTOM}).
 *
 * @param bufferedImageType an int representing one of the standard
 * {@code BufferedImage} types.
 *
 * @return an {@code ImageTypeSpecifier} with the desired
 * characteristics.
 *
 * @exception IllegalArgumentException if
 * {@code bufferedImageType} is not one of the standard
 * types, or is equal to {@code TYPE_CUSTOM}.
 *
 * @see java.awt.image.BufferedImage
 * @see java.awt.image.BufferedImage#TYPE_INT_RGB
 * @see java.awt.image.BufferedImage#TYPE_INT_ARGB
 * @see java.awt.image.BufferedImage#TYPE_INT_ARGB_PRE
 * @see java.awt.image.BufferedImage#TYPE_INT_BGR
 * @see java.awt.image.BufferedImage#TYPE_3BYTE_BGR
 * @see java.awt.image.BufferedImage#TYPE_4BYTE_ABGR
 * @see java.awt.image.BufferedImage#TYPE_4BYTE_ABGR_PRE
 * @see java.awt.image.BufferedImage#TYPE_USHORT_565_RGB
 * @see java.awt.image.BufferedImage#TYPE_USHORT_555_RGB
 * @see java.awt.image.BufferedImage#TYPE_BYTE_GRAY
 * @see java.awt.image.BufferedImage#TYPE_USHORT_GRAY
 * @see java.awt.image.BufferedImage#TYPE_BYTE_BINARY
 * @see java.awt.image.BufferedImage#TYPE_BYTE_INDEXED
 */
public static
    ImageTypeSpecifier createFromBufferedImageType(int bufferedImageType) {
    if (bufferedImageType >= BufferedImage.TYPE_INT_RGB &&
        bufferedImageType <= BufferedImage.TYPE_BYTE_INDEXED) {
        return getSpecifier(bufferedImageType);
    } else if (bufferedImageType == BufferedImage.TYPE_CUSTOM) {
        throw new IllegalArgumentException("Cannot create from TYPE_CUSTOM!");
    } else {
        throw new IllegalArgumentException("Invalid BufferedImage type!");
    }
}