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

Example 11 with SampleModel

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

the class ShortComponentRaster method createWritableChild.

/**
     * Creates a Writable subRaster given a region of the Raster. The x and y
     * coordinates specify the horizontal and vertical offsets
     * from the upper-left corner of this Raster to the upper-left corner
     * of the subRaster.  A subset of the bands of the parent Raster may
     * be specified.  If this is null, then all the bands are present in the
     * subRaster. A translation to the subRaster may also be specified.
     * Note that the subRaster will reference the same
     * DataBuffers as the parent Raster, but using different offsets.
     * @param x               X offset.
     * @param y               Y offset.
     * @param width           Width (in pixels) of the subraster.
     * @param height          Height (in pixels) of the subraster.
     * @param x0              Translated X origin of the subraster.
     * @param y0              Translated Y origin of the subraster.
     * @param bandList        Array of band indices.
     * @exception RasterFormatException
     *            if the specified bounding box is outside of the parent Raster.
     */
public WritableRaster createWritableChild(int x, int y, int width, int height, int x0, int y0, int[] bandList) {
    if (x < this.minX) {
        throw new RasterFormatException("x lies outside the raster");
    }
    if (y < this.minY) {
        throw new RasterFormatException("y lies outside the raster");
    }
    if ((x + width < x) || (x + width > this.minX + this.width)) {
        throw new RasterFormatException("(x + width) is outside of Raster");
    }
    if ((y + height < y) || (y + height > this.minY + this.height)) {
        throw new RasterFormatException("(y + height) is outside of Raster");
    }
    SampleModel sm;
    if (bandList != null)
        sm = sampleModel.createSubsetSampleModel(bandList);
    else
        sm = sampleModel;
    int deltaX = x0 - x;
    int deltaY = y0 - y;
    return new ShortComponentRaster(sm, dataBuffer, new Rectangle(x0, y0, width, height), new Point(sampleModelTranslateX + deltaX, sampleModelTranslateY + deltaY), this);
}

Example 12 with SampleModel

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

the class ShortInterleavedRaster method createWritableChild.

/**
     * Creates a Writable subRaster given a region of the Raster. The x and y
     * coordinates specify the horizontal and vertical offsets
     * from the upper-left corner of this Raster to the upper-left corner
     * of the subRaster.  A subset of the bands of the parent Raster may
     * be specified.  If this is null, then all the bands are present in the
     * subRaster. A translation to the subRaster may also be specified.
     * Note that the subRaster will reference the same
     * DataBuffers as the parent Raster, but using different offsets.
     * @param x               X offset.
     * @param y               Y offset.
     * @param width           Width (in pixels) of the subraster.
     * @param height          Height (in pixels) of the subraster.
     * @param x0              Translated X origin of the subraster.
     * @param y0              Translated Y origin of the subraster.
     * @param bandList        Array of band indices.
     * @exception RasterFormatException
     *            if the specified bounding box is outside of the parent Raster.
     */
public WritableRaster createWritableChild(int x, int y, int width, int height, int x0, int y0, int[] bandList) {
    if (x < this.minX) {
        throw new RasterFormatException("x lies outside the raster");
    }
    if (y < this.minY) {
        throw new RasterFormatException("y lies outside the raster");
    }
    if ((x + width < x) || (x + width > this.minX + this.width)) {
        throw new RasterFormatException("(x + width) is outside of Raster");
    }
    if ((y + height < y) || (y + height > this.minY + this.height)) {
        throw new RasterFormatException("(y + height) is outside of Raster");
    }
    SampleModel sm;
    if (bandList != null)
        sm = sampleModel.createSubsetSampleModel(bandList);
    else
        sm = sampleModel;
    int deltaX = x0 - x;
    int deltaY = y0 - y;
    return new ShortInterleavedRaster(sm, dataBuffer, new Rectangle(x0, y0, width, height), new Point(sampleModelTranslateX + deltaX, sampleModelTranslateY + deltaY), this);
}

Example 13 with SampleModel

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

the class GIFImageWriteParam method writeImage.

/**
     * Writes any extension blocks, the Image Descriptor, and the image data
     *
     * @param iioimage The image and image metadata.
     * @param param The write parameters.
     * @param globalColorTable The Global Color Table.
     * @param sourceBounds The source region.
     * @param destSize The destination dimensions.
     */
private void writeImage(RenderedImage image, GIFWritableImageMetadata imageMetadata, ImageWriteParam param, byte[] globalColorTable, Rectangle sourceBounds, Dimension destSize) throws IOException {
    ColorModel colorModel = image.getColorModel();
    SampleModel sampleModel = image.getSampleModel();
    boolean writeGraphicsControlExtension;
    if (imageMetadata == null) {
        // Create default metadata.
        imageMetadata = (GIFWritableImageMetadata) getDefaultImageMetadata(new ImageTypeSpecifier(image), param);
        // Set GraphicControlExtension flag only if there is
        // transparency.
        writeGraphicsControlExtension = imageMetadata.transparentColorFlag;
    } else {
        // Check for GraphicControlExtension element.
        NodeList list = null;
        try {
            IIOMetadataNode root = (IIOMetadataNode) imageMetadata.getAsTree(IMAGE_METADATA_NAME);
            list = root.getElementsByTagName("GraphicControlExtension");
        } catch (IllegalArgumentException iae) {
        // Should never happen.
        }
        // Set GraphicControlExtension flag if element present.
        writeGraphicsControlExtension = list != null && list.getLength() > 0;
        // the interlacing is set per the ImageWriteParam mode setting.
        if (param != null && param.canWriteProgressive()) {
            if (param.getProgressiveMode() == ImageWriteParam.MODE_DISABLED) {
                imageMetadata.interlaceFlag = false;
            } else if (param.getProgressiveMode() == ImageWriteParam.MODE_DEFAULT) {
                imageMetadata.interlaceFlag = true;
            }
        }
    }
    // Unset local color table if equal to global color table.
    if (Arrays.equals(globalColorTable, imageMetadata.localColorTable)) {
        imageMetadata.localColorTable = null;
    }
    // Override dimensions
    imageMetadata.imageWidth = destSize.width;
    imageMetadata.imageHeight = destSize.height;
    // Write Graphics Control Extension.
    if (writeGraphicsControlExtension) {
        writeGraphicControlExtension(imageMetadata);
    }
    // Write extension blocks.
    writePlainTextExtension(imageMetadata);
    writeApplicationExtension(imageMetadata);
    writeCommentExtension(imageMetadata);
    // Write Image Descriptor
    int bitsPerPixel = getNumBits(imageMetadata.localColorTable == null ? (globalColorTable == null ? sampleModel.getSampleSize(0) : globalColorTable.length / 3) : imageMetadata.localColorTable.length / 3);
    writeImageDescriptor(imageMetadata, bitsPerPixel);
    // Write image data
    writeRasterData(image, sourceBounds, destSize, param, imageMetadata.interlaceFlag);
}

Example 14 with SampleModel

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

the class GIFImageWriterSpi method canEncodeImage.

public boolean canEncodeImage(ImageTypeSpecifier type) {
    if (type == null) {
        throw new IllegalArgumentException("type == null!");
    }
    SampleModel sm = type.getSampleModel();
    ColorModel cm = type.getColorModel();
    boolean canEncode = sm.getNumBands() == 1 && sm.getSampleSize(0) <= 8 && sm.getWidth() <= 65535 && sm.getHeight() <= 65535 && (cm == null || cm.getComponentSize()[0] <= 8);
    if (canEncode) {
        return true;
    } else {
        return PaletteBuilder.canCreatePalette(type);
    }
}

Example 15 with SampleModel

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

the class GIFImageReader method createIndexed.

// We don't check all parameters as ImageTypeSpecifier.createIndexed do
// since this method is private and we pass consistent data here
private ImageTypeSpecifier createIndexed(byte[] r, byte[] g, byte[] b, int bits) {
    ColorModel colorModel;
    if (imageMetadata.transparentColorFlag) {
        // Some files erroneously have a transparent color index
        // of 255 even though there are fewer than 256 colors.
        int idx = Math.min(imageMetadata.transparentColorIndex, r.length - 1);
        colorModel = new IndexColorModel(bits, r.length, r, g, b, idx);
    } else {
        colorModel = new IndexColorModel(bits, r.length, r, g, b);
    }
    SampleModel sampleModel;
    if (bits == 8) {
        int[] bandOffsets = { 0 };
        sampleModel = new PixelInterleavedSampleModel(DataBuffer.TYPE_BYTE, 1, 1, 1, 1, bandOffsets);
    } else {
        sampleModel = new MultiPixelPackedSampleModel(DataBuffer.TYPE_BYTE, 1, 1, bits);
    }
    return new ImageTypeSpecifier(colorModel, sampleModel);
}