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

Example 1 with SampleModel

use of java.awt.image.SampleModel in project jna by java-native-access.

the class RasterRangesUtils method outputOccupiedRanges.

/**
     * Outputs ranges of occupied pixels.
     * In a raster that has an alpha layer, a pixel is occupied if its alpha value is not null.
     * In a raster without alpha layer, a pixel is occupied if it is not completely black.
     * @param raster image to be segmented in non black or non-transparent ranges
     * @param out destination of the non null ranges
     * @return true if the output succeeded, false otherwise
     */
public static boolean outputOccupiedRanges(Raster raster, RangesOutput out) {
    Rectangle bounds = raster.getBounds();
    SampleModel sampleModel = raster.getSampleModel();
    boolean hasAlpha = sampleModel.getNumBands() == 4;
    // Try to use the underlying data array directly for a few common raster formats
    if (raster.getParent() == null && bounds.x == 0 && bounds.y == 0) {
        // No support for subraster (as obtained with Image.getSubimage(...))
        DataBuffer data = raster.getDataBuffer();
        if (data.getNumBanks() == 1) {
            if (sampleModel instanceof MultiPixelPackedSampleModel) {
                MultiPixelPackedSampleModel packedSampleModel = (MultiPixelPackedSampleModel) sampleModel;
                if (packedSampleModel.getPixelBitStride() == 1) {
                    // TYPE_BYTE_BINARY
                    return outputOccupiedRangesOfBinaryPixels(((DataBufferByte) data).getData(), bounds.width, bounds.height, out);
                }
            } else if (sampleModel instanceof SinglePixelPackedSampleModel) {
                if (sampleModel.getDataType() == DataBuffer.TYPE_INT) {
                    // TYPE_INT_ARGB, TYPE_INT_ARGB_PRE, TYPE_INT_BGR or TYPE_INT_RGB
                    return outputOccupiedRanges(((DataBufferInt) data).getData(), bounds.width, bounds.height, hasAlpha ? 0xff000000 : 0xffffff, out);
                }
            // TODO could easily handle cases of TYPE_USHORT_GRAY and TYPE_BYTE_GRAY.
            }
        }
    }
    // Fallback behaviour : copy pixels of raster
    int[] pixels = raster.getPixels(0, 0, bounds.width, bounds.height, (int[]) null);
    return outputOccupiedRanges(pixels, bounds.width, bounds.height, hasAlpha ? 0xff000000 : 0xffffff, out);
}

Example 2 with SampleModel

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

the class PngDitDepthTest method main.

public static void main(String[] args) throws IIOInvalidTreeException {
    // getting the writer for the png format
    Iterator iter = ImageIO.getImageWritersByFormatName("png");
    ImageWriter writer = (ImageWriter) iter.next();
    // creating a color model
    ColorModel colorModel = ColorModel.getRGBdefault();
    // creating a sample model
    SampleModel sampleModel = colorModel.createCompatibleSampleModel(640, 480);
    // creating a default metadata object
    IIOMetadata metaData = writer.getDefaultImageMetadata(new ImageTypeSpecifier(colorModel, sampleModel), null);
    String formatName = metaData.getNativeMetadataFormatName();
    // first call
    Node metaDataNode = metaData.getAsTree(formatName);
    try {
        metaData.setFromTree(formatName, metaDataNode);
    } catch (Exception ex) {
        ex.printStackTrace();
    }
    // second call (bitdepht is already set to an invalid value)
    metaDataNode = metaData.getAsTree(formatName);
    metaData.setFromTree(formatName, metaDataNode);
}

Example 3 with SampleModel

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

the class ImageFactory method createCCMImage.

public static BufferedImage createCCMImage(int cs, int dataType) {
    ColorSpace cSpace = ColorSpace.getInstance(cs);
    ComponentColorModel ccm = null;
    if (dataType == DataBuffer.TYPE_INT) {
        ccm = new ComponentColorModel(cSpace, ((cs == ColorSpace.CS_GRAY) ? new int[] { 8 } : new int[] { 8, 8, 8 }), false, false, Transparency.OPAQUE, dataType);
    } else {
        ccm = new ComponentColorModel(cSpace, false, false, Transparency.OPAQUE, dataType);
    }
    SampleModel sm = ccm.createCompatibleSampleModel(WIDTH, HEIGHT);
    WritableRaster raster = ccm.createCompatibleWritableRaster(WIDTH, HEIGHT);
    DataBuffer data = raster.getDataBuffer();
    fillCCM(data, sm, cSpace);
    return new BufferedImage(ccm, raster, false, null);
}

Example 4 with SampleModel

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

the class ImageFactory method createDCMImage.

public static BufferedImage createDCMImage(int type, int cs) {
    if (type == BufferedImage.TYPE_INT_RGB && cs == ColorSpace.CS_sRGB) {
        BufferedImage image = new BufferedImage(WIDTH, HEIGHT, BufferedImage.TYPE_INT_RGB);
        DataBuffer data = image.getData().getDataBuffer();
        fill(image);
        return image;
    }
    ColorSpace cSpace = ColorSpace.getInstance(cs);
    DirectColorModel dcm = null;
    switch(type) {
        case BufferedImage.TYPE_INT_ARGB:
            dcm = new DirectColorModel(cSpace, 32, rMask, gMask, bMask, aMask, false, DataBuffer.TYPE_INT);
            break;
        case BufferedImage.TYPE_INT_RGB:
            dcm = new DirectColorModel(cSpace, 24, rMask, gMask, bMask, 0, false, DataBuffer.TYPE_INT);
            break;
        case BufferedImage.TYPE_INT_BGR:
            dcm = new DirectColorModel(cSpace, 24, rMask, gMask, bMask, 0, false, DataBuffer.TYPE_INT);
            break;
        case BufferedImage.TYPE_USHORT_555_RGB:
            dcm = new DirectColorModel(cSpace, 15, r555Mask, g555Mask, b555Mask, 0, false, DataBuffer.TYPE_USHORT);
            break;
        case BufferedImage.TYPE_USHORT_565_RGB:
            dcm = new DirectColorModel(cSpace, 16, r565Mask, g565Mask, b565Mask, 0, false, DataBuffer.TYPE_USHORT);
            break;
    }
    SampleModel sm = dcm.createCompatibleSampleModel(WIDTH, HEIGHT);
    WritableRaster raster = dcm.createCompatibleWritableRaster(WIDTH, HEIGHT);
    switch(type) {
        case BufferedImage.TYPE_INT_ARGB:
            fillDCM(raster.getDataBuffer(), sm, cSpace.getType());
            break;
        case BufferedImage.TYPE_INT_RGB:
            fillDCM(raster.getDataBuffer(), sm, cSpace.getType());
            break;
        case BufferedImage.TYPE_INT_BGR:
            fillDCM(raster.getDataBuffer(), sm, cSpace.getType());
            break;
        case BufferedImage.TYPE_USHORT_555_RGB:
            fillDCM(raster.getDataBuffer(), sm, cSpace.getType(), 5, 5, 5);
            break;
        case BufferedImage.TYPE_USHORT_565_RGB:
            fillDCM(raster.getDataBuffer(), sm, cSpace.getType(), 5, 6, 5);
            break;
    }
    return new BufferedImage(dcm, raster, false, null);
}

Example 5 with SampleModel

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

the class D3DSurfaceData method getRaster.

public synchronized Raster getRaster(int x, int y, int w, int h) {
    if (wrn == null) {
        DirectColorModel dcm = (DirectColorModel) getColorModel();
        SampleModel smHw;
        int dataType = 0;
        int scanStride = width;
        if (dcm.getPixelSize() > 16) {
            dataType = DataBuffer.TYPE_INT;
        } else {
            // 15, 16
            dataType = DataBuffer.TYPE_USHORT;
        }
        // note that we have to use the surface width and height here,
        // not the passed w,h
        smHw = new SinglePixelPackedSampleModel(dataType, width, height, scanStride, dcm.getMasks());
        DataBuffer dbn = new D3DDataBufferNative(this, dataType, width, height);
        wrn = WritableRasterNative.createNativeRaster(smHw, dbn);
    }
    return wrn;
}