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ImageIO plugin for Amiga/Electronic Arts Interchange Filed Format (IFF)
type ILBM and PBM format.
/*
* Copyright (c) 2008, Harald Kuhr
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * Neither the name "TwelveMonkeys" nor the
* names of its contributors may be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package com.twelvemonkeys.imageio.plugins.iff;
import com.twelvemonkeys.imageio.ImageWriterBase;
import com.twelvemonkeys.imageio.util.IIOUtil;
import com.twelvemonkeys.io.FastByteArrayOutputStream;
import com.twelvemonkeys.io.enc.EncoderStream;
import com.twelvemonkeys.io.enc.PackBitsEncoder;
import javax.imageio.*;
import javax.imageio.metadata.IIOMetadata;
import javax.imageio.spi.ImageWriterSpi;
import java.awt.*;
import java.awt.image.*;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.IOException;
import java.io.OutputStream;
/**
* Writer for Amiga (Electronic Arts) IFF ILBM (InterLeaved BitMap) format.
* The IFF format (Interchange File Format) is the standard file format
* supported by allmost all image software for the Amiga computer.
*
*
* @author Harald Kuhr
* @version $Id: IFFImageWriter.java,v 1.0 02.mar.2006 13:32:30 haku Exp$
*
* @see Wikipedia: IFF
* @see Wikipedia: IFF ILBM
*/
public class IFFImageWriter extends ImageWriterBase {
private static final byte[] ANNO_DATA = "Written by TwelveMonkeys IFFImageWriter 1.0 for Java (javax.imageio).".getBytes();
public IFFImageWriter() {
this(null);
}
protected IFFImageWriter(ImageWriterSpi pProvider) {
super(pProvider);
}
public IIOMetadata getDefaultImageMetadata(ImageTypeSpecifier imageType, ImageWriteParam param) {
throw new UnsupportedOperationException("Method getDefaultImageMetadata not implemented");// TODO: Implement
}
public IIOMetadata convertImageMetadata(IIOMetadata inData, ImageTypeSpecifier imageType, ImageWriteParam param) {
throw new UnsupportedOperationException("Method convertImageMetadata not implemented");// TODO: Implement
}
public void write(IIOMetadata pStreamMetadata, IIOImage pImage, ImageWriteParam pParam) throws IOException {
assertOutput();
if (pImage.hasRaster()) {
throw new UnsupportedOperationException("Cannot write raster");
}
processImageStarted(0);
// Prepare image data to be written
ByteArrayOutputStream imageData = new FastByteArrayOutputStream(1024);
packImageData(imageData, pImage.getRenderedImage(), pParam);
//System.out.println("Image data: " + imageData.size());
// Write metadata
writeMeta(pImage.getRenderedImage(), imageData.size());
// Write image data
writeBody(imageData);
processImageComplete();
}
private void writeBody(ByteArrayOutputStream pImageData) throws IOException {
mImageOutput.writeInt(IFF.CHUNK_BODY);
mImageOutput.writeInt(pImageData.size());
// NOTE: This is much faster than mOutput.write(pImageData.toByteArray())
// as the data array is not duplicated
pImageData.writeTo(IIOUtil.createStreamAdapter(mImageOutput));
if (pImageData.size() % 2 == 0) {
mImageOutput.writeByte(0); // PAD
}
// NOTE: Most progress is done in packImageData, however, as we need to
// buffer, to write correct size, we defer the last 10 percent until now.
processImageProgress(100f);
mImageOutput.flush();
}
private void packImageData(OutputStream pOutput, RenderedImage pImage, ImageWriteParam pParam) throws IOException {
// TODO: Allow param to dictate uncompressed
// TODO: Subsample/AOI
final boolean compress = shouldCompress(pImage);
final OutputStream output = compress ? new EncoderStream(pOutput, new PackBitsEncoder(), true) : pOutput;
final ColorModel model = pImage.getColorModel();
final Raster raster = pImage.getData();
final int width = pImage.getWidth();
final int height = pImage.getHeight();
// Store each row of pixels
// 0. Loop pr channel
// 1. Convert to planar
// 2. Perform byteRun1 compression for each plane separately
// 3. Write the plane data for each plane
final int planeWidth = (width + 7) / 8;
final byte[] planeData = new byte[8 * planeWidth];
final int channels = (model.getPixelSize() + 7) / 8;
final int planesPerChannel = channels == 1 ? model.getPixelSize() : 8;
int[] pixels = new int[8 * planeWidth];
// NOTE: I'm a little unsure if this is correct for 4 channel (RGBA)
// data, but it is at least consistent with the IFFImageReader for now...
for (int y = 0; y < height; y++) {
for (int c = 0; c < channels; c++) {
pixels = raster.getSamples(0, y, width, 1, c, pixels);
int pixelPos = 0;
int planePos = 0;
for (int i = 0; i < planeWidth; i++) {
IFFUtil.bitRotateCCW(pixels, pixelPos, 1,
planeData, planePos, planeWidth);
pixelPos += 8;
planePos++;
}
for (int p = 0; p < planesPerChannel; p++) {
output.write(planeData, p * planeWidth, planeWidth);
if (!compress && planeWidth % 2 != 0) {
output.write(0); // PAD
}
}
}
processImageProgress(y * 90f / height);
}
output.flush();
}
private void writeMeta(RenderedImage pImage, int pBodyLength) throws IOException {
// Annotation ANNO chunk, 8 + annoData.length bytes
GenericChunk anno = new GenericChunk(IFFUtil.toInt("ANNO".getBytes()), ANNO_DATA);
ColorModel cm = pImage.getColorModel();
IndexColorModel icm = null;
// Bitmap header BMHD chunk, 8 + 20 bytes
// By default, don't compress narrow images
int compression = shouldCompress(pImage) ? BMHDChunk.COMPRESSION_BYTE_RUN : BMHDChunk.COMPRESSION_NONE;
BMHDChunk header;
if (cm instanceof IndexColorModel) {
//System.out.println("IndexColorModel");
icm = (IndexColorModel) cm;
int trans = icm.getTransparency() == Transparency.BITMASK ? BMHDChunk.MASK_TRANSPARENT_COLOR : BMHDChunk.MASK_NONE;
int transPixel = icm.getTransparency() == Transparency.BITMASK ? icm.getTransparentPixel() : 0;
header = new BMHDChunk(pImage.getWidth(), pImage.getHeight(), icm.getPixelSize(),
trans, compression, transPixel);
}
else {
//System.out.println(cm.getClass().getName());
header = new BMHDChunk(pImage.getWidth(), pImage.getHeight(), cm.getPixelSize(),
BMHDChunk.MASK_NONE, compression, 0);
}
// Colormap CMAP chunk, 8 + icm.getMapSize() * 3 bytes (+ 1 optional pad).
CMAPChunk cmap = null;
if (icm != null) {
//System.out.println("CMAP!");
cmap = new CMAPChunk(icm);
}
// ILBM(4) + anno(8+len) + header(8+20) + cmap(8+len)? + body(8+len);
int size = 4 + 8 + anno.mChunkLength + 28 + 8 + pBodyLength;
if (cmap != null) {
size += 8 + cmap.mChunkLength;
}
mImageOutput.writeInt(IFF.CHUNK_FORM);
mImageOutput.writeInt(size);
mImageOutput.writeInt(IFF.TYPE_ILBM);
anno.writeChunk(mImageOutput);
header.writeChunk(mImageOutput);
if (cmap != null) {
//System.out.println("CMAP written");
cmap.writeChunk(mImageOutput);
}
}
private boolean shouldCompress(RenderedImage pImage) {
return pImage.getWidth() >= 32;
}
public static void main(String[] pArgs) throws IOException {
BufferedImage image = ImageIO.read(new File(pArgs[0]));
ImageWriter writer = new IFFImageWriter(new IFFImageWriterSpi());
writer.setOutput(ImageIO.createImageOutputStream(new File(pArgs[1])));
//writer.addIIOWriteProgressListener(new ProgressListenerBase() {
// int mCurrPct = 0;
//
// public void imageComplete(ImageWriter pSource) {
// mCurrPct = 100;
// printProgress(mCurrPct);
// }
//
// public void imageProgress(ImageWriter pSource, float pPercentageDone) {
// if ((int) pPercentageDone > mCurrPct) {
// printProgress((int) pPercentageDone);
// mCurrPct = (int) pPercentageDone;
// }
// }
//
// private void printProgress(int pCurrPct) {
// if (mCurrPct == 0) {
// System.out.print("[");
// }
// for (int i = mCurrPct / 2; i < pCurrPct / 2; i++) {
// System.out.print(".");
// }
// if (mCurrPct == 100) {
// System.out.println("]");
// }
// }
//});
//image = com.twelvemonkeys.image.ImageUtil.toBuffered(image, BufferedImage.TYPE_INT_ARGB);
writer.write(image);
}
}
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