Examples with ComponentColorModel java.awt.image.ComponentColorModel used on opensource projects

Example 21 with ComponentColorModel

use of java.awt.image.ComponentColorModel in project imageio-ext by geosolutions-it.

the class JP2KKakaduImageReader method getColorModel.

/**
 * Setup a proper <code>ColorModel</code>
 *
 * @return a color model.
 * @throws KduException
 */
private static ColorModel getColorModel(JP2KCodestreamProperties codestreamP) throws KduException {
    if (codestreamP.getColorModel() != null)
        return codestreamP.getColorModel();
    if (codestreamP.getColorModel() != null)
        return codestreamP.getColorModel();
    final int nComponents = codestreamP.getNumComponents();
    if (nComponents <= 4) {
        ColorSpace cs;
        if (nComponents > 2) {
            cs = ColorSpace.getInstance(ColorSpace.CS_sRGB);
        } else {
            cs = ColorSpace.getInstance(ColorSpace.CS_GRAY);
        }
        boolean hasAlpha = nComponents % 2 == 0;
        final int maxBitDepth = codestreamP.getMaxBitDepth();
        if (maxBitDepth <= 8) {
            codestreamP.setDataBufferType(DataBuffer.TYPE_BYTE);
        } else if (maxBitDepth <= 16) {
            if (codestreamP.isSigned())
                codestreamP.setDataBufferType(DataBuffer.TYPE_SHORT);
            else
                codestreamP.setDataBufferType(DataBuffer.TYPE_USHORT);
        } else if (maxBitDepth <= 32) {
            codestreamP.setDataBufferType(DataBuffer.TYPE_INT);
        }
        final int dataBufferType = codestreamP.getDataBufferType();
        if (dataBufferType != -1) {
            if (nComponents == 1 && (maxBitDepth == 1 || maxBitDepth == 2 || maxBitDepth == 4)) {
                codestreamP.setColorModel(ImageUtil.createColorModel(getSampleModel(codestreamP)));
            } else {
                codestreamP.setColorModel(new ComponentColorModel(cs, codestreamP.getBitsPerComponent(), hasAlpha, false, hasAlpha ? Transparency.TRANSLUCENT : Transparency.OPAQUE, dataBufferType));
            }
            return codestreamP.getColorModel();
        }
    }
    if (codestreamP.getSampleModel() == null)
        codestreamP.setSampleModel(getSampleModel(codestreamP));
    if (codestreamP.getSampleModel() == null)
        return null;
    return ImageUtil.createColorModel(codestreamP.getSampleModel());
}

Example 22 with ComponentColorModel

use of java.awt.image.ComponentColorModel in project imageio-ext by geosolutions-it.

the class ImageIOUtilities method createColorModel.

/**
 * Creates a <code>ColorModel</code> that may be used with the
 * specified <code>SampleModel</code>.  If a suitable
 * <code>ColorModel</code> cannot be found, this method returns
 * <code>null</code>.
 *
 * <p> Suitable <code>ColorModel</code>s are guaranteed to exist
 * for all instances of <code>ComponentSampleModel</code>.
 * For 1- and 3- banded <code>SampleModel</code>s, the returned
 * <code>ColorModel</code> will be opaque.  For 2- and 4-banded
 * <code>SampleModel</code>s, the output will use alpha transparency
 * which is not premultiplied.  1- and 2-banded data will use a
 * grayscale <code>ColorSpace</code>, and 3- and 4-banded data a sRGB
 * <code>ColorSpace</code>. Data with 5 or more bands will have a
 * <code>BogusColorSpace</code>.</p>
 *
 * <p>An instance of <code>DirectColorModel</code> will be created for
 * instances of <code>SinglePixelPackedSampleModel</code> with no more
 * than 4 bands.</p>
 *
 * <p>An instance of <code>IndexColorModel</code> will be created for
 * instances of <code>MultiPixelPackedSampleModel</code>. The colormap
 * will be a grayscale ramp with <code>1&nbsp;<<&nbsp;numberOfBits</code>
 * entries ranging from zero to at most 255.</p>
 *
 * @return An instance of <code>ColorModel</code> that is suitable for
 *         the supplied <code>SampleModel</code>, or <code>null</code>.
 *
 * @throws IllegalArgumentException  If <code>sampleModel</code> is
 *         <code>null</code>.
 */
public static final ColorModel createColorModel(SampleModel sampleModel) {
    // Check the parameter.
    if (sampleModel == null) {
        throw new IllegalArgumentException("sampleModel == null!");
    }
    // Get the data type.
    int dataType = sampleModel.getDataType();
    // Check the data type
    switch(dataType) {
        case DataBuffer.TYPE_BYTE:
        case DataBuffer.TYPE_USHORT:
        case DataBuffer.TYPE_SHORT:
        case DataBuffer.TYPE_INT:
        case DataBuffer.TYPE_FLOAT:
        case DataBuffer.TYPE_DOUBLE:
            break;
        default:
            // Return null for other types.
            return null;
    }
    // The return variable.
    ColorModel colorModel = null;
    // Get the sample size.
    int[] sampleSize = sampleModel.getSampleSize();
    // Create a Component ColorModel.
    if (sampleModel instanceof ComponentSampleModel) {
        // Get the number of bands.
        int numBands = sampleModel.getNumBands();
        // Determine the color space.
        ColorSpace colorSpace = null;
        if (numBands <= 2) {
            colorSpace = ColorSpace.getInstance(ColorSpace.CS_GRAY);
        } else if (numBands <= 4) {
            colorSpace = ColorSpace.getInstance(ColorSpace.CS_sRGB);
        } else {
            colorSpace = new BogusColorSpace(numBands);
        }
        boolean hasAlpha = (numBands == 2) || (numBands == 4);
        boolean isAlphaPremultiplied = false;
        int transparency = hasAlpha ? Transparency.TRANSLUCENT : Transparency.OPAQUE;
        if (dataType == DataBuffer.TYPE_SHORT)
            colorModel = new ComponentColorModel(colorSpace, sampleSize, hasAlpha, isAlphaPremultiplied, transparency, dataType);
        else
            colorModel = RasterFactory.createComponentColorModel(dataType, colorSpace, hasAlpha, isAlphaPremultiplied, transparency);
    } else if (sampleModel.getNumBands() <= 4 && sampleModel instanceof SinglePixelPackedSampleModel) {
        SinglePixelPackedSampleModel sppsm = (SinglePixelPackedSampleModel) sampleModel;
        int[] bitMasks = sppsm.getBitMasks();
        int rmask = 0;
        int gmask = 0;
        int bmask = 0;
        int amask = 0;
        int numBands = bitMasks.length;
        if (numBands <= 2) {
            rmask = gmask = bmask = bitMasks[0];
            if (numBands == 2) {
                amask = bitMasks[1];
            }
        } else {
            rmask = bitMasks[0];
            gmask = bitMasks[1];
            bmask = bitMasks[2];
            if (numBands == 4) {
                amask = bitMasks[3];
            }
        }
        int bits = 0;
        for (int i = 0; i < sampleSize.length; i++) {
            bits += sampleSize[i];
        }
        return new DirectColorModel(bits, rmask, gmask, bmask, amask);
    } else if (sampleModel instanceof MultiPixelPackedSampleModel) {
        // Load the colormap with a ramp.
        int bitsPerSample = sampleSize[0];
        int numEntries = 1 << bitsPerSample;
        byte[] map = new byte[numEntries];
        for (int i = 0; i < numEntries; i++) {
            map[i] = (byte) (i * 255 / (numEntries - 1));
        }
        colorModel = new IndexColorModel(bitsPerSample, numEntries, map, map, map);
    }
    return colorModel;
}

Example 23 with ComponentColorModel

use of java.awt.image.ComponentColorModel in project jwt by emweb.

the class WServerGLWidget method texImage2D.

@Override
public void texImage2D(GLenum target, int level, GLenum internalformat, GLenum format, GLenum type, String image) {
    BufferedImage initialImage = null;
    try {
        initialImage = ImageIO.read(new File(image));
    } catch (IOException e) {
        logger.error("IOException reading {}", image);
    }
    int openGlInternalFormat = serverGLenum(internalformat);
    int openGlImageFormat = serverGLenum(format);
    WritableRaster raster = Raster.createInterleavedRaster(DataBuffer.TYPE_BYTE, initialImage.getWidth(), initialImage.getHeight(), 4, null);
    ComponentColorModel colorModel = new ComponentColorModel(ColorSpace.getInstance(ColorSpace.CS_sRGB), new int[] { 8, 8, 8, 8 }, true, false, ComponentColorModel.TRANSLUCENT, DataBuffer.TYPE_BYTE);
    BufferedImage bufImg = new BufferedImage(colorModel, raster, false, null);
    Graphics2D g = bufImg.createGraphics();
    g.translate(0, initialImage.getHeight());
    g.scale(1, -1);
    g.drawImage(initialImage, null, null);
    DataBufferByte imgBuf = (DataBufferByte) raster.getDataBuffer();
    byte[] bytes = imgBuf.getData();
    ByteBuffer buffer = ByteBuffer.wrap(bytes);
    g.dispose();
    glCtx_.glTexImage2D(GL2.GL_TEXTURE_2D, 0, openGlInternalFormat, initialImage.getWidth(), initialImage.getHeight(), 0, openGlImageFormat, GL2.GL_UNSIGNED_BYTE, buffer);
    logger.debug("texImage2D: {}", glCtx_.glGetError());
}

Example 24 with ComponentColorModel

use of java.awt.image.ComponentColorModel in project jwt by emweb.

the class WServerGLWidget method texImage2D.

@Override
public void texImage2D(GLenum target, int level, GLenum internalformat, GLenum format, GLenum type, WPaintDevice paintdevice) {
    ByteArrayInputStream dataIn = null;
    if (((paintdevice) instanceof WRasterPaintDevice ? (WRasterPaintDevice) (paintdevice) : null) != null) {
        WRasterPaintDevice rpd = ((paintdevice) instanceof WRasterPaintDevice ? (WRasterPaintDevice) (paintdevice) : null);
        ByteArrayOutputStream data = new ByteArrayOutputStream();
        try {
            rpd.write(data);
        } catch (IOException e) {
            logger.error("IOException writing image to memory");
        }
        dataIn = new ByteArrayInputStream(data.toByteArray());
    } else {
        throw new WException("WServerGLWidget: invalid WPaintDevice");
    }
    BufferedImage initialImage = null;
    try {
        initialImage = ImageIO.read(dataIn);
    } catch (IOException e) {
        logger.error("IOException reading image from memory");
    }
    int openGlInternalFormat = serverGLenum(internalformat);
    int openGlImageFormat = serverGLenum(format);
    WritableRaster raster = Raster.createInterleavedRaster(DataBuffer.TYPE_BYTE, initialImage.getWidth(), initialImage.getHeight(), 4, null);
    ComponentColorModel colorModel = new ComponentColorModel(ColorSpace.getInstance(ColorSpace.CS_sRGB), new int[] { 8, 8, 8, 8 }, true, false, ComponentColorModel.TRANSLUCENT, DataBuffer.TYPE_BYTE);
    BufferedImage bufImg = new BufferedImage(colorModel, raster, false, null);
    Graphics2D g = bufImg.createGraphics();
    g.translate(0, initialImage.getHeight());
    g.scale(1, -1);
    g.drawImage(initialImage, null, null);
    DataBufferByte imgBuf = (DataBufferByte) raster.getDataBuffer();
    byte[] bytes = imgBuf.getData();
    ByteBuffer buffer = ByteBuffer.wrap(bytes);
    g.dispose();
    glCtx_.glTexImage2D(GL2.GL_TEXTURE_2D, 0, openGlInternalFormat, initialImage.getWidth(), initialImage.getHeight(), 0, openGlImageFormat, GL2.GL_UNSIGNED_BYTE, buffer);
    logger.debug("texImage2D: {}", glCtx_.glGetError());
}

Example 25 with ComponentColorModel

use of java.awt.image.ComponentColorModel in project jdk8u_jdk by JetBrains.

the class ColCvtAlpha method main.

public static void main(String[] args) {
    BufferedImage src = new BufferedImage(1, 10, BufferedImage.TYPE_INT_ARGB);
    // Set src pixel values
    Color pelColor = new Color(100, 100, 100, 128);
    for (int i = 0; i < 10; i++) {
        src.setRGB(0, i, pelColor.getRGB());
    }
    ColorModel cm = new ComponentColorModel(ColorSpace.getInstance(ColorSpace.CS_GRAY), new int[] { 8, 8 }, true, src.getColorModel().isAlphaPremultiplied(), Transparency.TRANSLUCENT, DataBuffer.TYPE_BYTE);
    SampleModel sm = new PixelInterleavedSampleModel(DataBuffer.TYPE_BYTE, 100, 100, 2, 200, new int[] { 0, 1 });
    WritableRaster wr = Raster.createWritableRaster(sm, new Point(0, 0));
    BufferedImage dst = new BufferedImage(cm, wr, cm.isAlphaPremultiplied(), null);
    dst = dst.getSubimage(0, 0, 1, 10);
    ColorConvertOp op = new ColorConvertOp(null);
    op.filter(src, dst);
    for (int i = 0; i < 10; i++) {
        if (((dst.getRGB(0, i) >> 24) & 0xff) != 128) {
            throw new RuntimeException("Incorrect destination alpha value.");
        }
    }
}