mirror of
https://github.com/haraldk/TwelveMonkeys.git
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Harald Kuhr
622 lines
25 KiB
Java
Executable File
622 lines
25 KiB
Java
Executable File
/*
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* Copyright (c) 2008, Harald Kuhr
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* * Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* * Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* * Neither the name of the copyright holder nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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package com.twelvemonkeys.image;
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import magick.ImageType;
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import magick.MagickException;
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import magick.MagickImage;
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import magick.PixelPacket;
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import java.awt.*;
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import java.awt.color.ColorSpace;
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import java.awt.color.ICC_ColorSpace;
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import java.awt.color.ICC_Profile;
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import java.awt.image.*;
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/**
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* Utility for converting JMagick {@code MagickImage}s to standard Java
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* {@code BufferedImage}s and back.
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* <p>
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* <em>NOTE: This class is considered an implementation detail and not part of
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* the public API. This class is subject to change without further notice.
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* You have been warned. :-)</em>
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* </p>
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*
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* @author <a href="mailto:harald.kuhr@gmail.com">Harald Kuhr</a>
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* @version $Id: //depot/branches/personal/haraldk/twelvemonkeys/release-2/twelvemonkeys-core/src/main/java/com/twelvemonkeys/image/MagickUtil.java#4 $
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*/
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public final class MagickUtil {
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// IMPORTANT NOTE: Disaster happens if any of these constants are used outside this class
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// because you then have a dependency on MagickException (this is due to Java class loading
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// and initialization magic).
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// Do not use outside this class. If the constants need to be shared, move to Magick or ImageUtil.
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/** Color Model usesd for bilevel (B/W) */
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private static final IndexColorModel CM_MONOCHROME = MonochromeColorModel.getInstance();
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/** Color Model usesd for raw ABGR */
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private static final ColorModel CM_COLOR_ALPHA =
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new ComponentColorModel(ColorSpace.getInstance(ColorSpace.CS_sRGB), new int[] {8, 8, 8, 8},
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true, true, Transparency.TRANSLUCENT, DataBuffer.TYPE_BYTE);
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/** Color Model usesd for raw BGR */
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private static final ColorModel CM_COLOR_OPAQUE =
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new ComponentColorModel(ColorSpace.getInstance(ColorSpace.CS_sRGB), new int[] {8, 8, 8},
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false, false, Transparency.OPAQUE, DataBuffer.TYPE_BYTE);
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/** Color Model usesd for raw RGB */
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//private static final ColorModel CM_COLOR_RGB = new DirectColorModel(24, 0x00ff0000, 0x0000ff00, 0x000000ff, 0x0);
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/** Color Model usesd for raw GRAY + ALPHA */
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private static final ColorModel CM_GRAY_ALPHA =
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new ComponentColorModel(ColorSpace.getInstance(ColorSpace.CS_GRAY),
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true, true, Transparency.TRANSLUCENT, DataBuffer.TYPE_BYTE);
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/** Color Model usesd for raw GRAY */
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private static final ColorModel CM_GRAY_OPAQUE =
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new ComponentColorModel(ColorSpace.getInstance(ColorSpace.CS_GRAY),
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false, false, Transparency.OPAQUE, DataBuffer.TYPE_BYTE);
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/** Band offsets for raw ABGR */
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private static final int[] BAND_OFF_TRANS = new int[] {3, 2, 1, 0};
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/** Band offsets for raw BGR */
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private static final int[] BAND_OFF_OPAQUE = new int[] {2, 1, 0};
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/** The point at {@code 0, 0} */
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private static final Point LOCATION_UPPER_LEFT = new Point(0, 0);
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private static final boolean DEBUG = Magick.DEBUG;
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// Only static members and methods
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private MagickUtil() {}
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/**
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* Converts a {@code MagickImage} to a {@code BufferedImage}.
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* <p>
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* The conversion depends on {@code pImage}'s {@code ImageType}:
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* </p>
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* <dl>
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* <dt>{@code ImageType.BilevelType}</dt>
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* <dd>{@code BufferedImage} of type {@code TYPE_BYTE_BINARY}</dd>
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*
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* <dt>{@code ImageType.GrayscaleType}</dt>
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* <dd>{@code BufferedImage} of type {@code TYPE_BYTE_GRAY}</dd>
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* <dt>{@code ImageType.GrayscaleMatteType}</dt>
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* <dd>{@code BufferedImage} of type {@code TYPE_USHORT_GRAY}</dd>
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*
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* <dt>{@code ImageType.PaletteType}</dt>
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* <dd>{@code BufferedImage} of type {@code TYPE_BYTE_BINARY} (for images
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* with a palette of <= 16 colors) or {@code TYPE_BYTE_INDEXED}</dd>
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* <dt>{@code ImageType.PaletteMatteType}</dt>
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* <dd>{@code BufferedImage} of type {@code TYPE_BYTE_BINARY} (for images
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* with a palette of <= 16 colors) or {@code TYPE_BYTE_INDEXED}</dd>
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*
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* <dt>{@code ImageType.TrueColorType}</dt>
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* <dd>{@code BufferedImage} of type {@code TYPE_3BYTE_BGR}</dd>
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* <dt>{@code ImageType.TrueColorPaletteType}</dt>
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* <dd>{@code BufferedImage} of type {@code TYPE_4BYTE_ABGR}</dd>
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* </dl>
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*
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* @param pImage the original {@code MagickImage}
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* @return a new {@code BufferedImage}
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*
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* @throws IllegalArgumentException if {@code pImage} is {@code null}
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* or if the {@code ImageType} is not one mentioned above.
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* @throws MagickException if an exception occurs during conversion
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*
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* @see BufferedImage
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*/
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public static BufferedImage toBuffered(MagickImage pImage) throws MagickException {
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if (pImage == null) {
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throw new IllegalArgumentException("image == null");
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}
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long start = 0L;
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if (DEBUG) {
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start = System.currentTimeMillis();
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}
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BufferedImage image = null;
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try {
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switch (pImage.getImageType()) {
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case ImageType.BilevelType:
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image = bilevelToBuffered(pImage);
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break;
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case ImageType.GrayscaleType:
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image = grayToBuffered(pImage, false);
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break;
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case ImageType.GrayscaleMatteType:
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image = grayToBuffered(pImage, true);
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break;
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case ImageType.PaletteType:
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image = paletteToBuffered(pImage, false);
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break;
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case ImageType.PaletteMatteType:
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image = paletteToBuffered(pImage, true);
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break;
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case ImageType.TrueColorType:
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image = rgbToBuffered(pImage, false);
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break;
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case ImageType.TrueColorMatteType:
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image = rgbToBuffered(pImage, true);
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break;
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case ImageType.ColorSeparationType:
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image = cmykToBuffered(pImage, false);
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break;
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case ImageType.ColorSeparationMatteType:
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image = cmykToBuffered(pImage, true);
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break;
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case ImageType.OptimizeType:
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default:
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throw new IllegalArgumentException("Unknown JMagick image type: " + pImage.getImageType());
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}
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}
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finally {
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if (DEBUG) {
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long time = System.currentTimeMillis() - start;
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System.out.println("Converted JMagick image type: " + pImage.getImageType() + " to BufferedImage: " + image);
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System.out.println("Conversion to BufferedImage: " + time + " ms");
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}
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}
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return image;
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}
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/**
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* Converts a {@code BufferedImage} to a {@code MagickImage}.
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* <p>
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* The conversion depends on {@code pImage}'s {@code ColorModel}:
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* </p>
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* <dl>
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* <dt>{@code IndexColorModel} with 1 bit b/w</dt>
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* <dd>{@code MagickImage} of type {@code ImageType.BilevelType}</dd>
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* <dt>{@code IndexColorModel} > 1 bit,</dt>
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* <dd>{@code MagickImage} of type {@code ImageType.PaletteType}
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* or {@code MagickImage} of type {@code ImageType.PaletteMatteType}
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* depending on <tt>ColorModel.getAlpha()</tt></dd>
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*
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* <dt>{@code ColorModel.getColorSpace().getType() == ColorSpace.TYPE_GRAY}</dt>
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* <dd>{@code MagickImage} of type {@code ImageType.GrayscaleType}
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* or {@code MagickImage} of type {@code ImageType.GrayscaleMatteType}
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* depending on <tt>ColorModel.getAlpha()</tt></dd>
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*
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* <dt>{@code ColorModel.getColorSpace().getType() == ColorSpace.TYPE_RGB}</dt>
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* <dd>{@code MagickImage} of type {@code ImageType.TrueColorType}
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* or {@code MagickImage} of type {@code ImageType.TrueColorPaletteType}</dd>
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* </dl>
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*
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* @param pImage the original {@code BufferedImage}
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* @return a new {@code MagickImage}
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*
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* @throws IllegalArgumentException if {@code pImage} is {@code null}
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* or if the {@code ColorModel} is not one mentioned above.
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* @throws MagickException if an exception occurs during conversion
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*
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* @see BufferedImage
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*/
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public static MagickImage toMagick(BufferedImage pImage) throws MagickException {
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if (pImage == null) {
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throw new IllegalArgumentException("image == null");
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}
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long start = 0L;
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if (DEBUG) {
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start = System.currentTimeMillis();
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}
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try {
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ColorModel cm = pImage.getColorModel();
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if (cm instanceof IndexColorModel) {
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// Handles both BilevelType, PaletteType and PaletteMatteType
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return indexedToMagick(pImage, (IndexColorModel) cm, cm.hasAlpha());
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}
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switch (cm.getColorSpace().getType()) {
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case ColorSpace.TYPE_GRAY:
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// Handles GrayType and GrayMatteType
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return grayToMagick(pImage, cm.hasAlpha());
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case ColorSpace.TYPE_RGB:
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// Handles TrueColorType and TrueColorMatteType
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return rgbToMagic(pImage, cm.hasAlpha());
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case ColorSpace.TYPE_CMY:
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case ColorSpace.TYPE_CMYK:
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case ColorSpace.TYPE_HLS:
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case ColorSpace.TYPE_HSV:
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// Other types not supported yet
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default:
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throw new IllegalArgumentException("Unknown buffered image type: " + pImage);
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}
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}
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finally {
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if (DEBUG) {
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long time = System.currentTimeMillis() - start;
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System.out.println("Conversion to MagickImage: " + time + " ms");
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}
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}
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}
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private static MagickImage rgbToMagic(BufferedImage pImage, boolean pAlpha) throws MagickException {
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MagickImage image = new MagickImage();
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BufferedImage buffered = ImageUtil.toBuffered(pImage, pAlpha ? BufferedImage.TYPE_4BYTE_ABGR : BufferedImage.TYPE_3BYTE_BGR);
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// Need to get data of sub raster, not the full data array, this is
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// just a convenient way
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Raster raster;
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if (buffered.getRaster().getParent() != null) {
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raster = buffered.getData(new Rectangle(buffered.getWidth(), buffered.getHeight()));
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}
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else {
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raster = buffered.getRaster();
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}
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image.constituteImage(buffered.getWidth(), buffered.getHeight(), pAlpha ? "ABGR" : "BGR",
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((DataBufferByte) raster.getDataBuffer()).getData());
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return image;
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}
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private static MagickImage grayToMagick(BufferedImage pImage, boolean pAlpha) throws MagickException {
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MagickImage image = new MagickImage();
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// TODO: Make a fix for TYPE_USHORT_GRAY
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// The code below does not seem to work (JMagick issues?)...
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/*
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if (pImage.getType() == BufferedImage.TYPE_USHORT_GRAY) {
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short[] data = ((DataBufferUShort) pImage.getRaster().getDataBuffer()).getData();
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int[] intData = new int[data.length];
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for (int i = 0; i < data.length; i++) {
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intData[i] = (data[i] & 0xffff) * 0xffff;
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}
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image.constituteImage(pImage.getWidth(), pImage.getHeight(), "I", intData);
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System.out.println("storageClass: " + image.getStorageClass());
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System.out.println("depth: " + image.getDepth());
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System.out.println("imageType: " + image.getImageType());
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}
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else {
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*/
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BufferedImage buffered = ImageUtil.toBuffered(pImage, pAlpha ? BufferedImage.TYPE_4BYTE_ABGR : BufferedImage.TYPE_BYTE_GRAY);
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// Need to get data of sub raster, not the full data array, this is
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// just a convenient way
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Raster raster;
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if (buffered.getRaster().getParent() != null) {
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raster = buffered.getData(new Rectangle(buffered.getWidth(), buffered.getHeight()));
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}
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else {
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raster = buffered.getRaster();
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}
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image.constituteImage(buffered.getWidth(), buffered.getHeight(), pAlpha ? "ABGR" : "I", ((DataBufferByte) raster.getDataBuffer()).getData());
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//}
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return image;
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}
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private static MagickImage indexedToMagick(BufferedImage pImage, IndexColorModel pColorModel, boolean pAlpha) throws MagickException {
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MagickImage image = rgbToMagic(pImage, pAlpha);
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int mapSize = pColorModel.getMapSize();
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image.setNumberColors(mapSize);
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return image;
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}
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/*
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public static MagickImage toMagick(BufferedImage pImage) throws MagickException {
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if (pImage == null) {
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throw new IllegalArgumentException("image == null");
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}
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final int width = pImage.getWidth();
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final int height = pImage.getHeight();
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// int ARGB -> byte RGBA conversion
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// NOTE: This is ImageMagick Q16 compatible raw RGBA format with 16 bits/sample...
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// For a Q8 build, we could probably go with half the space...
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// NOTE: This is close to insanity, as it wastes extreme ammounts of memory
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final int[] argb = new int[width];
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final byte[] raw16 = new byte[width * height * 8];
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for (int y = 0; y < height; y++) {
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// Fetch one line of ARGB data
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pImage.getRGB(0, y, width, 1, argb, 0, width);
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for (int x = 0; x < width; x++) {
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int pixel = (x + (y * width)) * 8;
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raw16[pixel ] = (byte) ((argb[x] >> 16) & 0xff); // R
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raw16[pixel + 2] = (byte) ((argb[x] >> 8) & 0xff); // G
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raw16[pixel + 4] = (byte) ((argb[x] ) & 0xff); // B
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raw16[pixel + 6] = (byte) ((argb[x] >> 24) & 0xff); // A
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}
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}
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// Create magick image
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ImageInfo info = new ImageInfo();
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info.setMagick("RGBA"); // Raw RGBA samples
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info.setSize(width + "x" + height); // String?!?
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MagickImage image = new MagickImage(info);
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image.setImageAttribute("depth", "8");
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// Set pixel data in 16 bit raw RGBA format
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image.blobToImage(info, raw16);
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return image;
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}
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*/
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/**
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* Converts a bi-level {@code MagickImage} to a {@code BufferedImage}, of
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* type {@code TYPE_BYTE_BINARY}.
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*
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* @param pImage the original {@code MagickImage}
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* @return a new {@code BufferedImage}
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*
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* @throws MagickException if an exception occurs during conversion
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*
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* @see BufferedImage
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*/
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private static BufferedImage bilevelToBuffered(MagickImage pImage) throws MagickException {
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// As there is no way to get the binary representation of the image,
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// convert to gray, and the create a binary image from it
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BufferedImage temp = grayToBuffered(pImage, false);
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BufferedImage image = new BufferedImage(temp.getWidth(), temp.getHeight(), BufferedImage.TYPE_BYTE_BINARY, CM_MONOCHROME);
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ImageUtil.drawOnto(image, temp);
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return image;
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}
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/**
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* Converts a gray {@code MagickImage} to a {@code BufferedImage}, of
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* type {@code TYPE_USHORT_GRAY} or {@code TYPE_BYTE_GRAY}.
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*
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* @param pImage the original {@code MagickImage}
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* @param pAlpha keep alpha channel
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* @return a new {@code BufferedImage}
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*
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* @throws MagickException if an exception occurs during conversion
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*
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* @see BufferedImage
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*/
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private static BufferedImage grayToBuffered(MagickImage pImage, boolean pAlpha) throws MagickException {
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Dimension size = pImage.getDimension();
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int length = size.width * size.height;
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int bands = pAlpha ? 2 : 1;
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byte[] pixels = new byte[length * bands];
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// TODO: Make a fix for 16 bit TYPE_USHORT_GRAY?!
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// Note: The ordering AI or I corresponds to BufferedImage
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// TYPE_CUSTOM and TYPE_BYTE_GRAY respectively
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pImage.dispatchImage(0, 0, size.width, size.height, pAlpha ? "AI" : "I", pixels);
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// Init databuffer with array, to avoid allocation of empty array
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DataBuffer buffer = new DataBufferByte(pixels, pixels.length);
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int[] bandOffsets = pAlpha ? new int[] {1, 0} : new int[] {0};
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WritableRaster raster =
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Raster.createInterleavedRaster(buffer, size.width, size.height,
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size.width * bands, bands, bandOffsets, LOCATION_UPPER_LEFT);
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return new BufferedImage(pAlpha ? CM_GRAY_ALPHA : CM_GRAY_OPAQUE, raster, pAlpha, null);
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}
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/**
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* Converts a palette-based {@code MagickImage} to a
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* {@code BufferedImage}, of type {@code TYPE_BYTE_BINARY} (for images
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* with a palette of <= 16 colors) or {@code TYPE_BYTE_INDEXED}.
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*
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* @param pImage the original {@code MagickImage}
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* @param pAlpha keep alpha channel
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* @return a new {@code BufferedImage}
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*
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* @throws MagickException if an exception occurs during conversion
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*
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* @see BufferedImage
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*/
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private static BufferedImage paletteToBuffered(MagickImage pImage, boolean pAlpha) throws MagickException {
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// Create indexcolormodel for the image
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IndexColorModel cm;
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try {
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cm = createIndexColorModel(pImage.getColormap(), pAlpha);
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}
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catch (MagickException e) {
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// NOTE: Some MagickImages incorrecly (?) reports to be paletteType,
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// but does not have a colormap, this is a workaround.
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return rgbToBuffered(pImage, pAlpha);
|
|
}
|
|
|
|
// As there is no way to get the indexes of an indexed image, convert to
|
|
// RGB, and the create an indexed image from it
|
|
BufferedImage temp = rgbToBuffered(pImage, pAlpha);
|
|
|
|
BufferedImage image;
|
|
if (cm.getMapSize() <= 16) {
|
|
image = new BufferedImage(temp.getWidth(), temp.getHeight(), BufferedImage.TYPE_BYTE_BINARY, cm);
|
|
}
|
|
else {
|
|
image = new BufferedImage(temp.getWidth(), temp.getHeight(), BufferedImage.TYPE_BYTE_INDEXED, cm);
|
|
}
|
|
|
|
// Create transparent background for images containing alpha
|
|
if (pAlpha) {
|
|
Graphics2D g = image.createGraphics();
|
|
try {
|
|
g.setComposite(AlphaComposite.Clear);
|
|
g.fillRect(0, 0, temp.getWidth(), temp.getHeight());
|
|
}
|
|
finally {
|
|
g.dispose();
|
|
}
|
|
}
|
|
|
|
// NOTE: This is (surprisingly) much faster than using g2d.drawImage()..
|
|
// (Tests shows 20-30ms, vs. 600-700ms on the same image)
|
|
BufferedImageOp op = new CopyDither(cm);
|
|
op.filter(temp, image);
|
|
|
|
return image;
|
|
}
|
|
|
|
/**
|
|
* Creates an {@code IndexColorModel} from an array of
|
|
* {@code PixelPacket}s.
|
|
*
|
|
* @param pColormap the original colormap as a {@code PixelPacket} array
|
|
* @param pAlpha keep alpha channel
|
|
*
|
|
* @return a new {@code IndexColorModel}
|
|
*/
|
|
public static IndexColorModel createIndexColorModel(PixelPacket[] pColormap, boolean pAlpha) {
|
|
int[] colors = new int[pColormap.length];
|
|
|
|
// TODO: Verify if this is correct for alpha...?
|
|
int trans = pAlpha ? colors.length - 1 : -1;
|
|
|
|
//for (int i = 0; i < pColormap.length; i++) {
|
|
for (int i = pColormap.length - 1; i != 0; i--) {
|
|
PixelPacket color = pColormap[i];
|
|
if (pAlpha) {
|
|
colors[i] = (0xff - (color.getOpacity() & 0xff)) << 24 |
|
|
(color.getRed() & 0xff) << 16 |
|
|
(color.getGreen() & 0xff) << 8 |
|
|
(color.getBlue() & 0xff);
|
|
}
|
|
else {
|
|
colors[i] = (color.getRed() & 0xff) << 16 |
|
|
(color.getGreen() & 0xff) << 8 |
|
|
(color.getBlue() & 0xff);
|
|
}
|
|
}
|
|
|
|
return new InverseColorMapIndexColorModel(8, colors.length, colors, 0, pAlpha, trans, DataBuffer.TYPE_BYTE);
|
|
}
|
|
|
|
/**
|
|
* Converts an (A)RGB {@code MagickImage} to a {@code BufferedImage}, of
|
|
* type {@code TYPE_4BYTE_ABGR} or {@code TYPE_3BYTE_BGR}.
|
|
*
|
|
* @param pImage the original {@code MagickImage}
|
|
* @param pAlpha keep alpha channel
|
|
* @return a new {@code BufferedImage}
|
|
*
|
|
* @throws MagickException if an exception occurs during conversion
|
|
*
|
|
* @see BufferedImage
|
|
*/
|
|
private static BufferedImage rgbToBuffered(MagickImage pImage, boolean pAlpha) throws MagickException {
|
|
Dimension size = pImage.getDimension();
|
|
int length = size.width * size.height;
|
|
int bands = pAlpha ? 4 : 3;
|
|
byte[] pixels = new byte[length * bands];
|
|
|
|
// TODO: If we do multiple dispatches (one per line, typically), we could provide listener
|
|
// feedback. But it's currently a lot slower than fetching all the pixels in one go.
|
|
|
|
// Note: The ordering ABGR or BGR corresponds to BufferedImage
|
|
// TYPE_4BYTE_ABGR and TYPE_3BYTE_BGR respectively
|
|
pImage.dispatchImage(0, 0, size.width, size.height, pAlpha ? "ABGR" : "BGR", pixels);
|
|
|
|
// Init databuffer with array, to avoid allocation of empty array
|
|
DataBuffer buffer = new DataBufferByte(pixels, pixels.length);
|
|
|
|
int[] bandOffsets = pAlpha ? BAND_OFF_TRANS : BAND_OFF_OPAQUE;
|
|
|
|
WritableRaster raster =
|
|
Raster.createInterleavedRaster(buffer, size.width, size.height,
|
|
size.width * bands, bands, bandOffsets, LOCATION_UPPER_LEFT);
|
|
|
|
return new BufferedImage(pAlpha ? CM_COLOR_ALPHA : CM_COLOR_OPAQUE, raster, pAlpha, null);
|
|
}
|
|
|
|
|
|
|
|
|
|
/**
|
|
* Converts an {@code MagickImage} to a {@code BufferedImage} which holds an CMYK ICC profile
|
|
*
|
|
* @param pImage the original {@code MagickImage}
|
|
* @param pAlpha keep alpha channel
|
|
* @return a new {@code BufferedImage}
|
|
*
|
|
* @throws MagickException if an exception occurs during conversion
|
|
*
|
|
* @see BufferedImage
|
|
*/
|
|
private static BufferedImage cmykToBuffered(MagickImage pImage, boolean pAlpha) throws MagickException {
|
|
Dimension size = pImage.getDimension();
|
|
int length = size.width * size.height;
|
|
|
|
// Retreive the ICC profile
|
|
ICC_Profile profile = ICC_Profile.getInstance(pImage.getColorProfile().getInfo());
|
|
ColorSpace cs = new ICC_ColorSpace(profile);
|
|
|
|
int bands = cs.getNumComponents() + (pAlpha ? 1 : 0);
|
|
|
|
int[] bits = new int[bands];
|
|
for (int i = 0; i < bands; i++) {
|
|
bits[i] = 8;
|
|
}
|
|
|
|
ColorModel cm = pAlpha ?
|
|
new ComponentColorModel(cs, bits, true, true, Transparency.TRANSLUCENT, DataBuffer.TYPE_BYTE) :
|
|
new ComponentColorModel(cs, bits, false, false, Transparency.OPAQUE, DataBuffer.TYPE_BYTE);
|
|
|
|
byte[] pixels = new byte[length * bands];
|
|
|
|
// TODO: If we do multiple dispatches (one per line, typically), we could provide listener
|
|
// feedback. But it's currently a lot slower than fetching all the pixels in one go.
|
|
// TODO: handle more generic cases if profile is not CMYK
|
|
// TODO: Test "ACMYK"
|
|
pImage.dispatchImage(0, 0, size.width, size.height, pAlpha ? "ACMYK" : "CMYK", pixels);
|
|
|
|
// Init databuffer with array, to avoid allocation of empty array
|
|
DataBuffer buffer = new DataBufferByte(pixels, pixels.length);
|
|
|
|
// TODO: build array from bands variable, here it just works for CMYK
|
|
// The values has not been tested with an alpha picture actually...
|
|
int[] bandOffsets = pAlpha ? new int[] {0, 1, 2, 3, 4} : new int[] {0, 1, 2, 3};
|
|
|
|
WritableRaster raster =
|
|
Raster.createInterleavedRaster(buffer, size.width, size.height,
|
|
size.width * bands, bands, bandOffsets, LOCATION_UPPER_LEFT);
|
|
|
|
return new BufferedImage(cm, raster, pAlpha, null);
|
|
|
|
}
|
|
}
|