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authorupstream source tree <ports@midipix.org>2015-03-15 20:14:05 -0400
committerupstream source tree <ports@midipix.org>2015-03-15 20:14:05 -0400
commit554fd8c5195424bdbcabf5de30fdc183aba391bd (patch)
tree976dc5ab7fddf506dadce60ae936f43f58787092 /libjava/classpath/gnu/javax/imageio/bmp
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Diffstat (limited to 'libjava/classpath/gnu/javax/imageio/bmp')
-rw-r--r--libjava/classpath/gnu/javax/imageio/bmp/BMPDecoder.java168
-rw-r--r--libjava/classpath/gnu/javax/imageio/bmp/BMPEncoder.java119
-rw-r--r--libjava/classpath/gnu/javax/imageio/bmp/BMPException.java47
-rw-r--r--libjava/classpath/gnu/javax/imageio/bmp/BMPFileHeader.java151
-rw-r--r--libjava/classpath/gnu/javax/imageio/bmp/BMPImageReader.java148
-rw-r--r--libjava/classpath/gnu/javax/imageio/bmp/BMPImageReaderSpi.java116
-rw-r--r--libjava/classpath/gnu/javax/imageio/bmp/BMPImageWriter.java195
-rw-r--r--libjava/classpath/gnu/javax/imageio/bmp/BMPImageWriterSpi.java148
-rw-r--r--libjava/classpath/gnu/javax/imageio/bmp/BMPInfoHeader.java317
-rw-r--r--libjava/classpath/gnu/javax/imageio/bmp/DecodeBF16.java99
-rw-r--r--libjava/classpath/gnu/javax/imageio/bmp/DecodeBF32.java103
-rw-r--r--libjava/classpath/gnu/javax/imageio/bmp/DecodeRGB1.java94
-rw-r--r--libjava/classpath/gnu/javax/imageio/bmp/DecodeRGB24.java77
-rw-r--r--libjava/classpath/gnu/javax/imageio/bmp/DecodeRGB4.java90
-rw-r--r--libjava/classpath/gnu/javax/imageio/bmp/DecodeRGB8.java88
-rw-r--r--libjava/classpath/gnu/javax/imageio/bmp/DecodeRLE4.java175
-rw-r--r--libjava/classpath/gnu/javax/imageio/bmp/DecodeRLE8.java142
-rw-r--r--libjava/classpath/gnu/javax/imageio/bmp/EncodeRGB1.java128
-rw-r--r--libjava/classpath/gnu/javax/imageio/bmp/EncodeRGB16.java129
-rw-r--r--libjava/classpath/gnu/javax/imageio/bmp/EncodeRGB24.java129
-rw-r--r--libjava/classpath/gnu/javax/imageio/bmp/EncodeRGB32.java129
-rw-r--r--libjava/classpath/gnu/javax/imageio/bmp/EncodeRGB4.java128
-rw-r--r--libjava/classpath/gnu/javax/imageio/bmp/EncodeRGB8.java127
-rw-r--r--libjava/classpath/gnu/javax/imageio/bmp/EncodeRLE4.java269
-rw-r--r--libjava/classpath/gnu/javax/imageio/bmp/EncodeRLE8.java234
25 files changed, 3550 insertions, 0 deletions
diff --git a/libjava/classpath/gnu/javax/imageio/bmp/BMPDecoder.java b/libjava/classpath/gnu/javax/imageio/bmp/BMPDecoder.java
new file mode 100644
index 000000000..108461931
--- /dev/null
+++ b/libjava/classpath/gnu/javax/imageio/bmp/BMPDecoder.java
@@ -0,0 +1,168 @@
+/* BMPDecoder.java --
+ Copyright (C) 2005 Free Software Foundation, Inc.
+
+This file is part of GNU Classpath.
+
+GNU Classpath is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+GNU Classpath is distributed in the hope that it will be useful, but
+WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GNU Classpath; see the file COPYING. If not, write to the
+Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library. Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module. An independent module is a module which is not derived from
+or based on this library. If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so. If you do not wish to do so, delete this
+exception statement from your version. */
+
+package gnu.javax.imageio.bmp;
+
+import java.io.IOException;
+import javax.imageio.stream.ImageInputStream;
+import java.nio.ByteBuffer;
+import java.nio.ByteOrder;
+import java.awt.image.IndexColorModel;
+import java.awt.image.BufferedImage;
+
+public abstract class BMPDecoder {
+
+ protected BMPInfoHeader infoHeader;
+ protected BMPFileHeader fileHeader;
+ protected long offset;
+
+ public BMPDecoder(BMPFileHeader fh, BMPInfoHeader ih){
+ fileHeader = fh;
+ infoHeader = ih;
+ offset = BMPFileHeader.SIZE + BMPInfoHeader.SIZE;
+ }
+
+ /**
+ * Determines the coding type of the bitmap and returns the corresponding
+ * decoder.
+ */
+ public static BMPDecoder getDecoder(BMPFileHeader fh, BMPInfoHeader ih){
+ switch(ih.getCompression()){
+ case BMPInfoHeader.BI_RGB: // uncompressed RGB
+ switch(ih.getBitCount()){
+ case 32:
+ return new DecodeBF32(fh, ih, true);
+
+ case 24:
+ return new DecodeRGB24(fh, ih);
+
+ case 16:
+ return new DecodeBF16(fh, ih, true);
+
+ case 8:
+ return new DecodeRGB8(fh, ih);
+
+ case 4:
+ return new DecodeRGB4(fh, ih);
+
+ case 1:
+ return new DecodeRGB1(fh, ih);
+
+ default:
+ return null;
+ }
+
+ case BMPInfoHeader.BI_RLE8:
+ return new DecodeRLE8(fh, ih);
+
+ case BMPInfoHeader.BI_RLE4:
+ return new DecodeRLE4(fh, ih);
+
+ case BMPInfoHeader.BI_BITFIELDS:
+ switch(ih.getBitCount()){
+ case 16:
+ return new DecodeBF16(fh, ih, false);
+
+ case 32:
+ return new DecodeBF32(fh, ih, false);
+
+ default:
+ return null;
+ }
+
+ default:
+ return null;
+ }
+ }
+
+ /**
+ * The image decoder.
+ */
+ public abstract BufferedImage decode(ImageInputStream in)
+ throws IOException, BMPException;
+
+ /**
+ * Reads r,g,b bit masks from an inputstream
+ */
+ protected int[] readBitMasks(ImageInputStream in) throws IOException {
+ int[] bitmasks = new int[3];
+ byte[] temp = new byte[12];
+ if(in.read(temp) != 12)
+ throw new IOException("Couldn't read bit masks.");
+ offset += 12;
+
+ ByteBuffer buf = ByteBuffer.wrap(temp);
+ buf.order(ByteOrder.LITTLE_ENDIAN);
+ bitmasks[0] = buf.getInt();
+ bitmasks[1] = buf.getInt();
+ bitmasks[2] = buf.getInt();
+ return bitmasks;
+ }
+
+ /**
+ * Reads an N-color palette from an inputstream in RGBQUAD format and
+ * returns an equivalent ColorModel object
+ */
+ protected IndexColorModel readPalette(ImageInputStream in) throws IOException {
+ int N = infoHeader.getNumberOfPaletteEntries();
+ byte[] r = new byte[N];
+ byte[] g = new byte[N];
+ byte[] b = new byte[N];
+ for(int i=0;i<N;i++){
+ byte[] RGBquad = new byte[4];
+ if(in.read(RGBquad) != 4)
+ throw new IOException("Error reading palette information.");
+ // RGBQUAD structure is b,g,r,0
+ r[i] = RGBquad[2];
+ g[i] = RGBquad[1];
+ b[i] = RGBquad[0];
+ }
+
+ offset += 4*N;
+ return new IndexColorModel(8, N, r, g, b);
+ }
+
+ /**
+ * Read bytes to the start of the image data
+ */
+ protected void skipToImage(ImageInputStream in) throws IOException {
+ byte[] d = new byte[1];
+ long n = fileHeader.getOffset() - offset;
+ for(int i=0;i<n;i++)
+ in.read(d);
+ }
+}
diff --git a/libjava/classpath/gnu/javax/imageio/bmp/BMPEncoder.java b/libjava/classpath/gnu/javax/imageio/bmp/BMPEncoder.java
new file mode 100644
index 000000000..d7c54c0d6
--- /dev/null
+++ b/libjava/classpath/gnu/javax/imageio/bmp/BMPEncoder.java
@@ -0,0 +1,119 @@
+/* BMPEncoder.java --
+ Copyright (C) 2006 Free Software Foundation, Inc.
+
+This file is part of GNU Classpath.
+
+GNU Classpath is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+GNU Classpath is distributed in the hope that it will be useful, but
+WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GNU Classpath; see the file COPYING. If not, write to the
+Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library. Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module. An independent module is a module which is not derived from
+or based on this library. If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so. If you do not wish to do so, delete this
+exception statement from your version. */
+
+
+package gnu.javax.imageio.bmp;
+
+import java.io.IOException;
+
+import javax.imageio.IIOImage;
+import javax.imageio.ImageWriteParam;
+import javax.imageio.metadata.IIOMetadata;
+import javax.imageio.stream.ImageOutputStream;
+
+public abstract class BMPEncoder
+{
+
+ /**
+ * Constructs a new BMPEncoder.
+ */
+ public BMPEncoder()
+ {
+ // Nothing to do here.
+ }
+
+ /**
+ * Determines the coding type of the bitmap and returns the corresponding
+ * encoder.
+ *
+ * @param fh - the file header
+ * @param ih - the info header
+ * @return the appropriate encoder
+ */
+ public static BMPEncoder getEncoder(BMPFileHeader fh, BMPInfoHeader ih)
+ {
+ switch (ih.getCompression())
+ {
+ case BMPInfoHeader.BI_RGB:
+ switch (ih.getBitCount())
+ {
+ case 32:
+ return new EncodeRGB32(fh, ih);
+
+ case 24:
+ return new EncodeRGB24(fh, ih);
+
+ case 16:
+ return new EncodeRGB16(fh, ih);
+
+ case 8:
+ return new EncodeRGB8(fh, ih);
+
+ case 4:
+ return new EncodeRGB4(fh, ih);
+
+ case 1:
+ return new EncodeRGB1(fh, ih);
+
+ default:
+ return null;
+ }
+ case BMPInfoHeader.BI_RLE4:
+ return new EncodeRLE4(fh, ih);
+
+ case BMPInfoHeader.BI_RLE8:
+ return new EncodeRLE8(fh, ih);
+ default:
+ return null;
+ }
+ }
+
+ /**
+ * The image encoder.
+ *
+ * @param o - the image output stream
+ * @param streamMetadata - metadata associated with this stream, or
+ * null
+ * @param image - an IIOImage containing image data, metadata and
+ * thumbnails to be written
+ * @param param - image writing parameters, or null
+ * @exception IOException if a write error occurs
+ */
+ public abstract void encode(ImageOutputStream o, IIOMetadata streamMetadata,
+ IIOImage image, ImageWriteParam param)
+ throws IOException;
+}
diff --git a/libjava/classpath/gnu/javax/imageio/bmp/BMPException.java b/libjava/classpath/gnu/javax/imageio/bmp/BMPException.java
new file mode 100644
index 000000000..0ba3c6c74
--- /dev/null
+++ b/libjava/classpath/gnu/javax/imageio/bmp/BMPException.java
@@ -0,0 +1,47 @@
+/* BMPException.java --
+ Copyright (C) 2005 Free Software Foundation, Inc.
+
+This file is part of GNU Classpath.
+
+GNU Classpath is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+GNU Classpath is distributed in the hope that it will be useful, but
+WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GNU Classpath; see the file COPYING. If not, write to the
+Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library. Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module. An independent module is a module which is not derived from
+or based on this library. If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so. If you do not wish to do so, delete this
+exception statement from your version. */
+
+package gnu.javax.imageio.bmp;
+
+import javax.imageio.IIOException;
+
+public class BMPException extends IIOException {
+
+ public BMPException(String message){
+ super(message);
+ }
+}
diff --git a/libjava/classpath/gnu/javax/imageio/bmp/BMPFileHeader.java b/libjava/classpath/gnu/javax/imageio/bmp/BMPFileHeader.java
new file mode 100644
index 000000000..0cfd72323
--- /dev/null
+++ b/libjava/classpath/gnu/javax/imageio/bmp/BMPFileHeader.java
@@ -0,0 +1,151 @@
+/* BMPFileHeader.java --
+ Copyright (C) 2005 Free Software Foundation, Inc.
+
+This file is part of GNU Classpath.
+
+GNU Classpath is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+GNU Classpath is distributed in the hope that it will be useful, but
+WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GNU Classpath; see the file COPYING. If not, write to the
+Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library. Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module. An independent module is a module which is not derived from
+or based on this library. If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so. If you do not wish to do so, delete this
+exception statement from your version. */
+
+package gnu.javax.imageio.bmp;
+
+import java.awt.image.RenderedImage;
+import java.io.IOException;
+import java.nio.ByteBuffer;
+import java.nio.ByteOrder;
+
+import javax.imageio.IIOImage;
+import javax.imageio.stream.ImageInputStream;
+import javax.imageio.stream.ImageOutputStream;
+
+public class BMPFileHeader {
+ /** Header signature, always 'BM' */
+ private final static short bfType = 0x424d;
+
+ /** Bitmap file size, in bytes. */
+ protected long bfSize;
+
+ /** Offset from the beginning of the file to the bitmap data */
+ protected long bfOffBits;
+
+ /** BITMAPFILEHEADER is 14 bytes */
+ public static final int SIZE = 14;
+ private static final int BITMAPINFOHEADER_SIZE = 40;
+
+ /**
+ * Creates the header from an input stream, which is not closed.
+ *
+ * @throws IOException if an I/O error occured.
+ * @throws BMPException if the header was invalid
+ */
+ public BMPFileHeader(ImageInputStream in) throws IOException, BMPException {
+ byte[] data = new byte[SIZE];
+
+ if (in.read(data) != SIZE)
+ throw new IOException("Couldn't read header.");
+ ByteBuffer buf = ByteBuffer.wrap(data);
+
+ if(buf.getShort(0) != bfType)
+ throw new BMPException("Not a BMP file.");
+
+ buf.order(ByteOrder.LITTLE_ENDIAN);
+
+ // get size (keep unsigned)
+ bfSize = ((long)buf.getInt(2) & (0xFFFFFFFF));
+
+ // Two reserved shorts are here, and should be zero,
+ // perhaps they should be tested to be zero, but I don't
+ // feel this strictness is necessary.
+
+ bfOffBits = ((long)buf.getInt(10) & (0xFFFFFFFF));
+ }
+
+ /**
+ * Creates the header from an output stream, which is not closed.
+ *
+ * @param out - the image output stream
+ * @param im - the image
+ * @throws IOException if an I/O error occured.
+ */
+ public BMPFileHeader(ImageOutputStream out, IIOImage im) throws IOException
+ {
+ RenderedImage img = im.getRenderedImage();
+ int w = img.getWidth();
+ int h = img.getHeight();
+
+ bfOffBits = SIZE + BITMAPINFOHEADER_SIZE;
+ bfSize = ((w * h) * 3) + ((4 - ((w * 3) % 4)) * h) + bfOffBits;
+
+ write(out);
+ }
+
+ /**
+ * Writes the header to an output stream, which is not closed or flushed.
+ *
+ * @throws IOException if an I/O error occured.
+ */
+ public void write(ImageOutputStream out) throws IOException {
+ ByteBuffer buf = ByteBuffer.allocate(SIZE);
+ buf.putShort(0, bfType); // ID
+ buf.putInt(2, (int)(bfSize & (0xFFFFFFFF))); // size
+ buf.putInt(6, 0); // 4 reserved bytes set to zero
+ buf.putInt(7, (int)(bfOffBits & (0xFFFFFFFF))); // size
+ out.write(buf.array());
+ }
+
+ /**
+ * Sets the file size
+ */
+ public void setSize(long size){
+ bfSize = size;
+ }
+
+ /**
+ * Sets the bitmap offset within the file
+ */
+ public void setOffset(long offset){
+ bfOffBits = offset;
+ }
+
+ /**
+ * Gets the file size
+ */
+ public long getSize(){
+ return bfSize;
+ }
+
+ /**
+ * Gets the bitmap offset within the file
+ */
+ public long getOffset(){
+ return bfOffBits;
+ }
+}
diff --git a/libjava/classpath/gnu/javax/imageio/bmp/BMPImageReader.java b/libjava/classpath/gnu/javax/imageio/bmp/BMPImageReader.java
new file mode 100644
index 000000000..7b136bdf5
--- /dev/null
+++ b/libjava/classpath/gnu/javax/imageio/bmp/BMPImageReader.java
@@ -0,0 +1,148 @@
+/* BMPImageReader.java --
+ Copyright (C) 2005 Free Software Foundation, Inc.
+
+This file is part of GNU Classpath.
+
+GNU Classpath is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+GNU Classpath is distributed in the hope that it will be useful, but
+WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GNU Classpath; see the file COPYING. If not, write to the
+Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library. Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module. An independent module is a module which is not derived from
+or based on this library. If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so. If you do not wish to do so, delete this
+exception statement from your version. */
+
+package gnu.javax.imageio.bmp;
+
+import java.io.IOException;
+import javax.imageio.*;
+import javax.imageio.spi.*;
+import javax.imageio.metadata.*;
+import javax.imageio.stream.ImageInputStream;
+import java.util.Iterator;
+import java.awt.image.BufferedImage;
+
+public class BMPImageReader extends ImageReader {
+ private BMPInfoHeader infoHeader;
+ private BMPFileHeader fileHeader;
+ private BMPDecoder decoder;
+
+ protected BMPImageReader(ImageReaderSpi originatingProvider){
+ super(originatingProvider);
+ infoHeader = null;
+ fileHeader = null;
+ decoder = null;
+ }
+
+ private void validateIndex(int imageIndex)
+ throws IndexOutOfBoundsException {
+ if (imageIndex != 0)
+ throw new IndexOutOfBoundsException("Invalid image index.");
+ }
+
+ public void setInput(Object input) {
+ super.setInput(input);
+ }
+
+ public void setInput(Object input,
+ boolean seekForwardOnly,
+ boolean ignoreMetadata) {
+ super.setInput(input, seekForwardOnly, ignoreMetadata);
+ }
+
+ public void setInput(Object input, boolean isStreamable) {
+ super.setInput(input, isStreamable);
+
+ if (!(input instanceof ImageInputStream))
+ throw new IllegalArgumentException("Input not an ImageInputStream.");
+ }
+
+ private void checkStream() throws IOException {
+ if (!(input instanceof ImageInputStream))
+ throw new IllegalStateException("Input not an ImageInputStream.");
+ if(input == null)
+ throw new IllegalStateException("No input stream.");
+
+ }
+
+ private void readHeaders() throws IOException, IIOException {
+ if(fileHeader != null)
+ return;
+
+ checkStream();
+
+ fileHeader = new BMPFileHeader((ImageInputStream)input);
+ infoHeader = new BMPInfoHeader((ImageInputStream)input);
+ decoder = BMPDecoder.getDecoder(fileHeader, infoHeader);
+ }
+
+ public int getWidth(int imageIndex) throws IOException {
+ validateIndex(imageIndex);
+ readHeaders();
+ return infoHeader.getWidth();
+ }
+
+ public int getHeight(int imageIndex) throws IOException {
+ validateIndex(imageIndex);
+ readHeaders();
+ return infoHeader.getHeight();
+ }
+
+ public Iterator getImageTypes(int imageIndex){
+ validateIndex(imageIndex);
+ return null;
+ }
+
+ /**
+ * Returns the number of images. BMP files can only contain a single one.
+ */
+ public int getNumImages(boolean allowSearch){
+ return 1;
+ }
+
+
+ // FIXME: Support metadata
+ public IIOMetadata getImageMetadata(int imageIndex){
+ validateIndex(imageIndex);
+ return null;
+ }
+
+ // FIXME: Support metadata
+ public IIOMetadata getStreamMetadata(){
+ return null;
+ }
+
+ /**
+ * Reads the image indexed by imageIndex and returns it as
+ * a complete BufferedImage, using a supplied ImageReadParam.
+ */
+ public BufferedImage read(int imageIndex, ImageReadParam param)
+ throws IOException, IIOException {
+ validateIndex(imageIndex);
+ readHeaders();
+ return decoder.decode((ImageInputStream)input);
+ }
+}
diff --git a/libjava/classpath/gnu/javax/imageio/bmp/BMPImageReaderSpi.java b/libjava/classpath/gnu/javax/imageio/bmp/BMPImageReaderSpi.java
new file mode 100644
index 000000000..5d027963a
--- /dev/null
+++ b/libjava/classpath/gnu/javax/imageio/bmp/BMPImageReaderSpi.java
@@ -0,0 +1,116 @@
+/* BMPImageReaderSpi.java --
+ Copyright (C) 2005 Free Software Foundation, Inc.
+
+This file is part of GNU Classpath.
+
+GNU Classpath is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+GNU Classpath is distributed in the hope that it will be useful, but
+WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GNU Classpath; see the file COPYING. If not, write to the
+Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library. Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module. An independent module is a module which is not derived from
+or based on this library. If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so. If you do not wish to do so, delete this
+exception statement from your version. */
+
+package gnu.javax.imageio.bmp;
+
+import java.io.IOException;
+import java.util.Locale;
+import javax.imageio.ImageReader;
+import javax.imageio.spi.ImageReaderSpi;
+import javax.imageio.stream.ImageInputStream;
+
+public class BMPImageReaderSpi extends ImageReaderSpi {
+
+ static final String vendorName = "GNU";
+ static final String version = "0.1";
+ static final String readerClassName =
+ "gnu.javax.imageio.bmp.BMPImageReader";
+ static final String[] names = { "Microsoft Windows BMP" };
+ static final String[] suffixes = { ".bmp", ".bm" };
+ static final String[] MIMETypes = {
+ "image/bmp",
+ "image/x-windows-bmp"};
+ static final String[] writerSpiNames =
+ { "gnu.javax.imageio.bmp.BMPImageWriterSpi" };
+
+ static final boolean supportsStandardStreamMetadataFormat = false;
+ static final String nativeStreamMetadataFormatName = null;
+ static final String nativeStreamMetadataFormatClassName = null;
+ static final String[] extraStreamMetadataFormatNames = null;
+ static final String[] extraStreamMetadataFormatClassNames = null;
+ static final boolean supportsStandardImageMetadataFormat = false;
+ static final String nativeImageMetadataFormatName = null;
+ static final String nativeImageMetadataFormatClassName = null;
+ static final String[] extraImageMetadataFormatNames = null;
+ static final String[] extraImageMetadataFormatClassNames = null;
+
+ public BMPImageReaderSpi() {
+ super(vendorName, version,
+ names, suffixes, MIMETypes,
+ readerClassName,
+ STANDARD_INPUT_TYPE, // Accept ImageInputStreams
+ writerSpiNames,
+ supportsStandardStreamMetadataFormat,
+ nativeStreamMetadataFormatName,
+ nativeStreamMetadataFormatClassName,
+ extraStreamMetadataFormatNames,
+ extraStreamMetadataFormatClassNames,
+ supportsStandardImageMetadataFormat,
+ nativeImageMetadataFormatName,
+ nativeImageMetadataFormatClassName,
+ extraImageMetadataFormatNames,
+ extraImageMetadataFormatClassNames);
+ }
+
+ public String getDescription(Locale locale) {
+ return "Microsoft BMP v3";
+ }
+
+ public boolean canDecodeInput(Object input)
+ throws IOException {
+ if (!(input instanceof ImageInputStream))
+ return false;
+
+ ImageInputStream in = (ImageInputStream)input;
+ boolean retval;
+
+ in.mark();
+ try {
+ new BMPFileHeader(in);
+ retval = true;
+ } catch(BMPException e){
+ retval = false;
+ }
+ in.reset();
+
+ return retval;
+ }
+
+ public ImageReader createReaderInstance(Object extension) {
+ return new BMPImageReader(this);
+ }
+}
diff --git a/libjava/classpath/gnu/javax/imageio/bmp/BMPImageWriter.java b/libjava/classpath/gnu/javax/imageio/bmp/BMPImageWriter.java
new file mode 100644
index 000000000..407e66a72
--- /dev/null
+++ b/libjava/classpath/gnu/javax/imageio/bmp/BMPImageWriter.java
@@ -0,0 +1,195 @@
+/* BMPImageWriter.java --
+ Copyright (C) 2006 Free Software Foundation, Inc.
+
+This file is part of GNU Classpath.
+
+GNU Classpath is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+GNU Classpath is distributed in the hope that it will be useful, but
+WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GNU Classpath; see the file COPYING. If not, write to the
+Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library. Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module. An independent module is a module which is not derived from
+or based on this library. If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so. If you do not wish to do so, delete this
+exception statement from your version. */
+
+
+package gnu.javax.imageio.bmp;
+
+import java.io.IOException;
+
+import javax.imageio.IIOImage;
+import javax.imageio.ImageTypeSpecifier;
+import javax.imageio.ImageWriteParam;
+import javax.imageio.ImageWriter;
+import javax.imageio.metadata.IIOMetadata;
+import javax.imageio.spi.ImageWriterSpi;
+import javax.imageio.stream.ImageOutputStream;
+
+public class BMPImageWriter
+ extends ImageWriter
+{
+ protected BMPEncoder encoder;
+ protected BMPFileHeader fileHeader;
+ protected BMPInfoHeader infoHeader;
+
+ /**
+ * Construct an bmp image writer.
+ *
+ * @param originatingProvider - the provider that is constructing this image
+ * writer, or null
+ */
+ protected BMPImageWriter(ImageWriterSpi originatingProvider)
+ {
+ super(originatingProvider);
+ encoder = null;
+ fileHeader = null;
+ infoHeader = null;
+ }
+
+ /**
+ * Convert IIOMetadata from an input reader format, returning an IIOMetadata
+ * suitable for use by an image writer. The ImageTypeSpecifier specifies the
+ * destination image type. An optional ImageWriteParam argument is available
+ * in case the image writing parameters affect the metadata conversion.
+ *
+ * @param inData - the metadata coming from an image reader
+ * @param imageType - the output image type of the writer
+ * @param param - the image writing parameters or null
+ * @return the converted metadata that should be used by the image writer, or
+ * null if this ImageTranscoder has no knowledge of the input metadata
+ * @exception IllegalArgumentException if either inData or imageType is null
+ */
+ public IIOMetadata convertImageMetadata(IIOMetadata inData,
+ ImageTypeSpecifier imageType,
+ ImageWriteParam param)
+ {
+ // FIXME: Support metadata.
+ if (inData == null || imageType == null)
+ throw new IllegalArgumentException("IIOMetadata and ImageTypeSpecifier cannot be null.");
+ return null;
+ }
+
+ /**
+ * Convert IIOMetadata from an input stream format, returning an
+ * IIOMetadata suitable for use by an image writer.
+ *
+ * An optional ImageWriteParam argument is available in case the
+ * image writing parameters affect the metadata conversion.
+ *
+ * @param inData - the metadata coming from an input image stream
+ * @param param - the image writing parameters or null
+ * @return the converted metadata that should be used by the image
+ * writer, or null if this ImageTranscoder has no knowledge of the
+ * input metadata
+ *
+ * @exception IllegalArgumentException if inData is null
+ */
+ public IIOMetadata convertStreamMetadata (IIOMetadata inData,
+ ImageWriteParam param)
+ {
+ // FIXME: Support metadata.
+ if (inData == null)
+ throw new IllegalArgumentException("IIOMetadata cannot be null.");
+ return null;
+ }
+
+ /**
+ * Get a metadata object appropriate for encoding an image specified
+ * by the given image type specifier and optional image write
+ * parameters.
+ *
+ * @param imageType - an image type specifier
+ * @param param - image writing parameters, or null
+ * @return a metadata object appropriate for encoding an image of
+ * the given type with the given parameters
+ */
+ public IIOMetadata getDefaultImageMetadata (ImageTypeSpecifier imageType, ImageWriteParam param)
+ {
+ // FIXME: Support metadata.
+ return null;
+ }
+
+ /**
+ * Get a metadata object appropriate for encoding the default image
+ * type handled by this writer, optionally considering image write
+ * parameters.
+ *
+ * @param param - image writing parameters, or null
+ * @return a metadata object appropriate for encoding an image of
+ * the default type with the given parameters
+ */
+ public IIOMetadata getDefaultStreamMetadata (ImageWriteParam param)
+ {
+ // FIXME: Support metadata.
+ return null;
+ }
+
+ /**
+ * Write an image stream, including thumbnails and metadata to the
+ * output stream. The output must have been set prior to this
+ * method being called. Metadata associated with the stream may be
+ * supplied, or it can be left null. IIOImage may contain raster
+ * data if this writer supports rasters, or it will contain a
+ * rendered image. Thumbnails are resized if need be. Image
+ * writing parameters may be specified to affect writing, or may be
+ * left null.
+ *
+ * @param streamMetadata - metadata associated with this stream, or
+ * null
+ * @param image - an IIOImage containing image data, metadata and
+ * thumbnails to be written
+ * @param param - image writing parameters, or null
+ * @exception IOException if a write error occurs
+ * @throws BMPException if the encoder has not been initialized.
+ */
+ public void write(IIOMetadata streamMetadata, IIOImage image,
+ ImageWriteParam param) throws IOException, BMPException
+ {
+ checkStream();
+ ImageOutputStream out = (ImageOutputStream) output;
+ fileHeader = new BMPFileHeader(out, image);
+ infoHeader = new BMPInfoHeader(out, image, param);
+ encoder = BMPEncoder.getEncoder(fileHeader, infoHeader);
+
+ if (encoder != null)
+ encoder.encode(out, streamMetadata, image, param);
+ else
+ throw new BMPException("Encoder has not been initialized.");
+ }
+
+ /**
+ * Checks the output stream.
+ *
+ * @throws IOException if there is an error with the output stream
+ */
+ private void checkStream() throws IOException
+ {
+ if (!(output instanceof ImageOutputStream))
+ throw new IllegalStateException("Output not an ImageOutputStream.");
+ if (output == null)
+ throw new IllegalStateException("No output stream.");
+ }
+}
diff --git a/libjava/classpath/gnu/javax/imageio/bmp/BMPImageWriterSpi.java b/libjava/classpath/gnu/javax/imageio/bmp/BMPImageWriterSpi.java
new file mode 100644
index 000000000..e158dcfd7
--- /dev/null
+++ b/libjava/classpath/gnu/javax/imageio/bmp/BMPImageWriterSpi.java
@@ -0,0 +1,148 @@
+/* BMPImageWriterSpi.java --
+ Copyright (C) 2006 Free Software Foundation, Inc.
+
+This file is part of GNU Classpath.
+
+GNU Classpath is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+GNU Classpath is distributed in the hope that it will be useful, but
+WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GNU Classpath; see the file COPYING. If not, write to the
+Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library. Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module. An independent module is a module which is not derived from
+or based on this library. If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so. If you do not wish to do so, delete this
+exception statement from your version. */
+
+
+package gnu.javax.imageio.bmp;
+
+import java.util.Locale;
+
+import javax.imageio.ImageTypeSpecifier;
+import javax.imageio.ImageWriter;
+import javax.imageio.spi.ImageWriterSpi;
+
+public class BMPImageWriterSpi
+ extends ImageWriterSpi
+{
+
+ static final String vendorName = "GNU";
+ static final String version = "0.1";
+ static final String writerClassName = "gnu.javax.imageio.bmp.BMPImageWriter";
+ static final String[] names = { "bmp", "BMP", "Microsoft Windows BMP" };
+ static final String[] suffixes = { ".bmp", ".bm" };
+ static final String[] MIMETypes = { "image/bmp", "image/x-windows-bmp" };
+ static final String[] readerSpiNames = { "gnu.javax.imageio.bmp.BMPImageReaderSpi" };
+
+ static final boolean supportsStandardStreamMetadataFormat = false;
+ static final String nativeStreamMetadataFormatName = null;
+ static final String nativeStreamMetadataFormatClassName = null;
+ static final String[] extraStreamMetadataFormatNames = null;
+ static final String[] extraStreamMetadataFormatClassNames = null;
+ static final boolean supportsStandardImageMetadataFormat = false;
+ static final String nativeImageMetadataFormatName = null;
+ static final String nativeImageMetadataFormatClassName = null;
+ static final String[] extraImageMetadataFormatNames = null;
+ static final String[] extraImageMetadataFormatClassNames = null;
+
+ private BMPImageWriter writerInstance;
+
+ public BMPImageWriterSpi()
+ {
+ super(vendorName, version, names, suffixes, MIMETypes, writerClassName,
+ STANDARD_OUTPUT_TYPE, readerSpiNames, supportsStandardStreamMetadataFormat,
+ nativeStreamMetadataFormatName, nativeStreamMetadataFormatClassName,
+ extraStreamMetadataFormatNames, extraStreamMetadataFormatClassNames,
+ supportsStandardImageMetadataFormat, nativeImageMetadataFormatName,
+ nativeImageMetadataFormatClassName, extraImageMetadataFormatNames,
+ extraImageMetadataFormatClassNames);
+ }
+
+ /**
+ * Returns true if the image can be encoded.
+ *
+ * @param type - the image type specifier.
+ * @return true if image can be encoded, otherwise false.
+ */
+ public boolean canEncodeImage(ImageTypeSpecifier type)
+ {
+ if (type == null)
+ return false;
+
+ BMPInfoHeader ih = writerInstance.infoHeader;
+ if (ih != null)
+ {
+ int compressionType = ih.getCompression();
+ int bytes = type.getColorModel().getPixelSize();
+ if ((compressionType == BMPInfoHeader.BI_RLE4 && (bytes != 4 || bytes != 8))
+ || (compressionType == BMPInfoHeader.BI_RGB && ((bytes != 1
+ || bytes != 4
+ || bytes != 8
+ || bytes != 16
+ || bytes != 24
+ || bytes != 32))))
+ return false;
+ }
+ return true;
+ }
+
+ /**
+ * Creates an instance of ImageWriter using the given extension.
+ *
+ * @param extension - the provider that is constructing this image writer, or
+ * null
+ */
+ public ImageWriter createWriterInstance(Object extension)
+ {
+ if (extension != null && extension instanceof ImageWriterSpi)
+ writerInstance = new BMPImageWriter((ImageWriterSpi) extension);
+ else
+ writerInstance = new BMPImageWriter(this);
+ return writerInstance;
+ }
+
+ /**
+ * Gets the instance of ImageWriter, if already created.
+ */
+ public BMPImageWriter getWriterInstance()
+ {
+ if (writerInstance != null)
+ return writerInstance;
+ return (BMPImageWriter) createWriterInstance(null);
+ }
+
+ /**
+ * Returns a short description of this service provider that can be
+ * presented to a human user.
+ *
+ * @param locale - the locale for which the description string should
+ * be localized.
+ */
+ public String getDescription(Locale locale)
+ {
+ return "Microsoft BMP v3";
+ }
+
+}
diff --git a/libjava/classpath/gnu/javax/imageio/bmp/BMPInfoHeader.java b/libjava/classpath/gnu/javax/imageio/bmp/BMPInfoHeader.java
new file mode 100644
index 000000000..e14afdb04
--- /dev/null
+++ b/libjava/classpath/gnu/javax/imageio/bmp/BMPInfoHeader.java
@@ -0,0 +1,317 @@
+/* BMPInfoHeader.java --
+ Copyright (C) 2005 Free Software Foundation, Inc.
+
+This file is part of GNU Classpath.
+
+GNU Classpath is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+GNU Classpath is distributed in the hope that it will be useful, but
+WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GNU Classpath; see the file COPYING. If not, write to the
+Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library. Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module. An independent module is a module which is not derived from
+or based on this library. If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so. If you do not wish to do so, delete this
+exception statement from your version. */
+
+package gnu.javax.imageio.bmp;
+
+import java.awt.Dimension;
+import java.awt.image.ColorModel;
+import java.awt.image.RenderedImage;
+import java.io.IOException;
+import java.nio.ByteBuffer;
+import java.nio.ByteOrder;
+
+import javax.imageio.IIOImage;
+import javax.imageio.ImageWriteParam;
+import javax.imageio.stream.ImageInputStream;
+import javax.imageio.stream.ImageOutputStream;
+
+public class BMPInfoHeader
+{
+ /** Size of the bitmap info header */
+ protected int biSize;
+
+ /** Pixel width of the bitmap */
+ protected int biWidth;
+
+ /** Pixel height of the bitmap */
+ protected int biHeight;
+
+ /** Number of bitplanes = 1 */
+ protected short biPlanes;
+
+ /** Number of bpp = 1,4,8,24 */
+ protected short biBitCount;
+
+ /** Compression type, RGB8, RLE8, RLE4, BITFIELDS */
+ protected int biCompression;
+
+ /** Byte size of the uncompressed bitmap, can be 0. */
+ protected int biSizeImage;
+
+ /** X resolution, dots per meter */
+ protected int biXPelsPerMeter;
+
+ /** Y resolution, dots per meter */
+ protected int biYPelsPerMeter;
+
+ /** Number of colors used (palette only, can be 0 for all) */
+ protected int biClrUsed;
+
+ /** Number of 'important' colors, 0 for all */
+ protected int biClrImportant;
+
+ /** BITMAPINFOHEADER is 40 bytes */
+ public static final int SIZE = 40;
+
+ /**
+ * Compression types
+ */
+ public static final int BI_RGB = 0;
+ public static final int BI_RLE8 = 1;
+ public static final int BI_RLE4 = 2;
+ public static final int BI_BITFIELDS = 3;
+
+ /**
+ * Creates the header from an input stream, which is not closed.
+ *
+ * @param in - the image input stream
+ * @throws IOException if an I/O error occured.
+ * @throws BMPException if the header was invalid
+ */
+ public BMPInfoHeader(ImageInputStream in) throws IOException, BMPException
+ {
+ byte[] data = new byte[SIZE];
+
+ if (in.read(data) != SIZE)
+ throw new IOException("Couldn't read header.");
+ ByteBuffer buf = ByteBuffer.wrap(data);
+ buf.order(ByteOrder.LITTLE_ENDIAN);
+
+ int n;
+ if ((n = buf.getInt()) != SIZE)
+ throw new BMPException("Invalid BITMAPINFOHEADER size: " + n);
+
+ biWidth = buf.getInt();
+ biHeight = buf.getInt();
+ biPlanes = buf.getShort();
+ setBitCount(buf.getShort());
+ setCompression(buf.getInt());
+ biSizeImage = buf.getInt();
+ biXPelsPerMeter = buf.getInt();
+ biYPelsPerMeter = buf.getInt();
+ biClrUsed = buf.getInt();
+ biClrImportant = buf.getInt();
+ }
+
+ /**
+ * Creates the info header from an output stream, which is not closed.
+ *
+ * @param out - the image output stream
+ * @param im - the image
+ * @param param - the image write param.
+ * @throws IOException if an I/O error occured.
+ */
+ public BMPInfoHeader(ImageOutputStream out, IIOImage im, ImageWriteParam param) throws IOException
+ {
+ RenderedImage img = im.getRenderedImage();
+ ColorModel cMod = img.getColorModel();
+
+ biSize = SIZE;
+ biWidth = img.getWidth();
+ biHeight = img.getHeight();
+ biPlanes = 1;
+
+ if (param != null && param.canWriteCompressed())
+ {
+ String compType = param.getCompressionType();
+ if (compType.equals("BI_RLE8"))
+ {
+ biCompression = BI_RLE8;
+ biBitCount = 8;
+ }
+ else if (compType.equals("BI_RLE4"))
+ {
+ biCompression = BI_RLE4;
+ biBitCount = 4;
+ }
+ else
+ {
+ biCompression = BI_RGB;
+ biBitCount = (short) cMod.getPixelSize();
+ }
+ }
+ else
+ {
+ biBitCount = (short) cMod.getPixelSize();
+ biCompression = BI_RGB;
+ }
+
+ biXPelsPerMeter = 0x0;
+ biYPelsPerMeter = 0x0;
+ biClrUsed = 0;
+ biClrImportant = 0;
+ biSizeImage = ((biWidth * biHeight) * 3)
+ + ((4 - ((biWidth * 3) % 4)) * biHeight);
+ out.write(intToDWord(biSize));
+ out.write(intToDWord(biWidth));
+ out.write(intToDWord(biHeight));
+ out.write(intToWord(biPlanes));
+ out.write(intToWord(biBitCount));
+ out.write(intToDWord(biCompression));
+ out.write(intToDWord(biSizeImage));
+ out.write(intToDWord(biXPelsPerMeter));
+ out.write(intToDWord(biYPelsPerMeter));
+ out.write(intToDWord(biClrUsed));
+ out.write(intToDWord(biClrImportant));
+ }
+
+ /**
+ * Converts an int to a word, where the return value is stored in a
+ * 2-byte array.
+ *
+ * @param val - the value to convert
+ * @return the array
+ */
+ private byte[] intToWord(int val)
+ {
+ byte b[] = new byte[2];
+ b[0] = (byte) (val & 0x00FF);
+ b[1] = (byte) ((val >> 8) & 0x00FF);
+ return b;
+ }
+
+ /**
+ * Converts an int to a double word, where the return value is
+ * stored in a 4-byte array.
+ *
+ * @param val - the value to convert
+ * @return the array
+ */
+ private byte[] intToDWord(int val)
+ {
+ byte b[] = new byte[4];
+ b[0] = (byte) (val & 0x00FF);
+ b[1] = (byte) ((val >> 8) & 0x000000FF);
+ b[2] = (byte) ((val >> 16) & 0x000000FF);
+ b[3] = (byte) ((val >> 24) & 0x000000FF);
+ return b;
+ }
+
+
+ public void setBitCount(short bitcount) throws BMPException
+ {
+ switch (bitcount)
+ {
+ case 1:
+ case 4:
+ case 8:
+ case 16:
+ case 24:
+ case 32:
+ biBitCount = bitcount;
+ break;
+
+ default:
+ throw new BMPException("Invalid number of bits per pixel: " + bitcount);
+ }
+ }
+
+ public short getBitCount()
+ {
+ return biBitCount;
+ }
+
+ public void setCompression(int compression) throws BMPException
+ {
+ switch (compression)
+ {
+ case BI_RLE8:
+ if (getBitCount() != 8)
+ throw new BMPException("Invalid number of bits per pixel.");
+ biCompression = compression;
+ break;
+ case BI_RLE4:
+ if (getBitCount() != 4)
+ throw new BMPException("Invalid number of bits per pixel.");
+ biCompression = compression;
+ break;
+
+ case BI_RGB:
+ case BI_BITFIELDS:
+ biCompression = compression;
+ break;
+
+ default:
+ throw new BMPException("Unknown bitmap compression type.");
+ }
+ }
+
+ public int getNumberOfPaletteEntries()
+ {
+ if (biClrUsed == 0)
+ switch (biBitCount)
+ {
+ case 1:
+ return 2;
+ case 4:
+ return 16;
+ case 8:
+ return 256;
+
+ default: // should not happen
+ return 0;
+ }
+
+ return biClrUsed;
+ }
+
+ public int getCompression()
+ {
+ return biCompression;
+ }
+
+ public Dimension getSize()
+ {
+ return new Dimension(biWidth, biHeight);
+ }
+
+ public int getWidth()
+ {
+ return biWidth;
+ }
+
+ public int getHeight()
+ {
+ return biHeight;
+ }
+
+ public void setSize(Dimension d)
+ {
+ biWidth = (int) d.getWidth();
+ biHeight = (int) d.getHeight();
+ }
+}
diff --git a/libjava/classpath/gnu/javax/imageio/bmp/DecodeBF16.java b/libjava/classpath/gnu/javax/imageio/bmp/DecodeBF16.java
new file mode 100644
index 000000000..2f94ac613
--- /dev/null
+++ b/libjava/classpath/gnu/javax/imageio/bmp/DecodeBF16.java
@@ -0,0 +1,99 @@
+/* DecodeBF16.java --
+ Copyright (C) 2005 Free Software Foundation, Inc.
+
+This file is part of GNU Classpath.
+
+GNU Classpath is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+GNU Classpath is distributed in the hope that it will be useful, but
+WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GNU Classpath; see the file COPYING. If not, write to the
+Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library. Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module. An independent module is a module which is not derived from
+or based on this library. If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so. If you do not wish to do so, delete this
+exception statement from your version. */
+
+package gnu.javax.imageio.bmp;
+
+import java.io.IOException;
+import javax.imageio.stream.ImageInputStream;
+import java.awt.image.BufferedImage;
+import java.awt.image.ColorModel;
+import java.awt.image.DirectColorModel;
+import java.awt.image.Raster;
+import java.awt.image.WritableRaster;
+import java.awt.image.DataBuffer;
+import java.awt.image.DataBufferUShort;
+import java.awt.image.SinglePixelPackedSampleModel;
+import java.awt.image.SampleModel;
+import java.awt.Dimension;
+
+public class DecodeBF16 extends BMPDecoder {
+ private int[] bitmasks;
+ private boolean useDefaultMasks;
+
+ public DecodeBF16(BMPFileHeader fh, BMPInfoHeader ih,
+ boolean udm){
+ super(fh,ih);
+
+ useDefaultMasks = udm;
+ if(useDefaultMasks) // 5-6-5 mask, B,G,R
+ bitmasks = new int[] { 0x00F800, 0x0007E0, 0x00001F };
+ }
+
+ public BufferedImage decode(ImageInputStream in) throws IOException, BMPException {
+ if(!useDefaultMasks)
+ bitmasks = readBitMasks(in);
+ skipToImage(in);
+
+ Dimension d = infoHeader.getSize();
+ int h = (int)d.getHeight();
+ int w = (int)d.getWidth();
+
+ // BMP scanlines are padded to dword offsets
+ int scansize = (w + (w&1)) << 1;
+ short[] data = new short[w*h];
+
+ for(int y=h-1;y>=0;y--){
+ byte[] scanline = new byte[scansize];
+ if(in.read(scanline) != scansize)
+ throw new IOException("Couldn't read image data.");
+
+ for(int x=0;x<w;x++)
+ data[x + y*w] = (short)((scanline[x*2] & (0xFF)) |
+ ((scanline[x*2+1] & (0xFF)) << 8));
+ }
+
+ ColorModel cm = new DirectColorModel(16,
+ bitmasks[0], bitmasks[1], bitmasks[2]);
+ SampleModel sm = new SinglePixelPackedSampleModel(DataBuffer.TYPE_USHORT,
+ w, h,
+ bitmasks);
+ DataBuffer db = new DataBufferUShort(data, w*h, 0);
+ WritableRaster raster = Raster.createWritableRaster(sm, db, null);
+ return new BufferedImage(cm, raster, false, null);
+ }
+
+}
diff --git a/libjava/classpath/gnu/javax/imageio/bmp/DecodeBF32.java b/libjava/classpath/gnu/javax/imageio/bmp/DecodeBF32.java
new file mode 100644
index 000000000..bfa469488
--- /dev/null
+++ b/libjava/classpath/gnu/javax/imageio/bmp/DecodeBF32.java
@@ -0,0 +1,103 @@
+/* DecodeBF32.java --
+ Copyright (C) 2005 Free Software Foundation, Inc.
+
+This file is part of GNU Classpath.
+
+GNU Classpath is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+GNU Classpath is distributed in the hope that it will be useful, but
+WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GNU Classpath; see the file COPYING. If not, write to the
+Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library. Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module. An independent module is a module which is not derived from
+or based on this library. If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so. If you do not wish to do so, delete this
+exception statement from your version. */
+
+package gnu.javax.imageio.bmp;
+
+import java.io.IOException;
+import javax.imageio.stream.ImageInputStream;
+import java.awt.image.BufferedImage;
+import java.awt.image.ColorModel;
+import java.awt.image.DirectColorModel;
+import java.awt.image.Raster;
+import java.awt.image.WritableRaster;
+import java.awt.image.DataBuffer;
+import java.awt.image.DataBufferInt;
+import java.awt.image.SinglePixelPackedSampleModel;
+import java.awt.image.SampleModel;
+import java.awt.Dimension;
+
+public class DecodeBF32 extends BMPDecoder {
+ private int[] bitmasks;
+ private boolean useDefaultMasks;
+
+ public DecodeBF32(BMPFileHeader fh, BMPInfoHeader ih,
+ boolean udm){
+ super(fh,ih);
+
+ useDefaultMasks = udm;
+ if(useDefaultMasks)
+ bitmasks = new int[] { 0x00FF0000, 0x0000FF00, 0x000000FF };
+ }
+
+ public BufferedImage decode(ImageInputStream in) throws IOException, BMPException {
+ if(!useDefaultMasks)
+ bitmasks = readBitMasks(in);
+ skipToImage(in);
+
+ Dimension d = infoHeader.getSize();
+ int h = (int)d.getHeight();
+ int w = (int)d.getWidth();
+
+ // BMP scanlines are padded to dword offsets
+ int scansize = w << 2;
+ int[] data = new int[w*h];
+
+
+ for(int y=h-1;y>=0;y--){
+ byte[] scanline = new byte[scansize];
+ if(in.read(scanline) != scansize)
+ throw new IOException("Couldn't read image data.");
+
+ for(int x=0;x<w;x++)
+ data[x + y*w] = ((scanline[x<<2] & (0xFF)) |
+ ((scanline[(x<<2)+1] & (0xFF)) << 8) |
+ ((scanline[(x<<2)+2] & (0xFF)) << 16) |
+ ((scanline[(x<<2)+3] & (0xFF)) << 24));
+ }
+
+ ColorModel cm = new DirectColorModel(32,
+ bitmasks[0], bitmasks[1], bitmasks[2]);
+ SampleModel sm = new SinglePixelPackedSampleModel(DataBuffer.TYPE_INT,
+ w, h,
+ bitmasks);
+ DataBuffer db = new DataBufferInt(data, w*h);
+ WritableRaster raster = Raster.createWritableRaster(sm, db, null);
+
+ return new BufferedImage(cm, raster, false, null);
+ }
+
+}
diff --git a/libjava/classpath/gnu/javax/imageio/bmp/DecodeRGB1.java b/libjava/classpath/gnu/javax/imageio/bmp/DecodeRGB1.java
new file mode 100644
index 000000000..ca81bc433
--- /dev/null
+++ b/libjava/classpath/gnu/javax/imageio/bmp/DecodeRGB1.java
@@ -0,0 +1,94 @@
+/* DecodeRGB1.java --
+ Copyright (C) 2005 Free Software Foundation, Inc.
+
+This file is part of GNU Classpath.
+
+GNU Classpath is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+GNU Classpath is distributed in the hope that it will be useful, but
+WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GNU Classpath; see the file COPYING. If not, write to the
+Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library. Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module. An independent module is a module which is not derived from
+or based on this library. If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so. If you do not wish to do so, delete this
+exception statement from your version. */
+
+package gnu.javax.imageio.bmp;
+
+import java.io.IOException;
+import javax.imageio.stream.ImageInputStream;
+import java.awt.image.BufferedImage;
+import java.awt.image.IndexColorModel;
+import java.awt.image.Raster;
+import java.awt.image.WritableRaster;
+import java.awt.image.DataBuffer;
+import java.awt.image.DataBufferByte;
+import java.awt.image.MultiPixelPackedSampleModel;
+import java.awt.image.SampleModel;
+import java.awt.Dimension;
+
+public class DecodeRGB1 extends BMPDecoder {
+
+ public DecodeRGB1(BMPFileHeader fh, BMPInfoHeader ih){
+ super(fh, ih);
+ }
+
+ public BufferedImage decode(ImageInputStream in)
+ throws IOException, BMPException {
+
+ IndexColorModel palette = readPalette(in);
+ skipToImage(in);
+
+ Dimension d = infoHeader.getSize();
+ int h = (int)d.getHeight();
+ int w = (int)d.getWidth();
+ int size = (w*h)>>3;
+
+ int scansize = w>>3;
+ byte[] data = new byte[size];
+
+ for(int y=h-1;y>=0;y--){
+ // Scanlines are padded to dword boundries
+ int readsize = scansize;
+ if((readsize & 3) != 0) readsize += (4 - (scansize & 3));
+
+ byte[] scanline = new byte[readsize];
+ if(in.read(scanline) != readsize)
+ throw new IOException("Couldn't read image data.");
+
+ for(int x=0;x<scansize;x++)
+ data[x + y*scansize] = scanline[x];
+ }
+
+ SampleModel sm = new MultiPixelPackedSampleModel(DataBuffer.TYPE_BYTE,
+ w, h, 1);
+
+ DataBuffer db = new DataBufferByte(data, size, 0);
+ WritableRaster raster = Raster.createWritableRaster(sm, db, null);
+
+ return new BufferedImage(palette, raster, false, null);
+ }
+
+}
diff --git a/libjava/classpath/gnu/javax/imageio/bmp/DecodeRGB24.java b/libjava/classpath/gnu/javax/imageio/bmp/DecodeRGB24.java
new file mode 100644
index 000000000..0ddcc434e
--- /dev/null
+++ b/libjava/classpath/gnu/javax/imageio/bmp/DecodeRGB24.java
@@ -0,0 +1,77 @@
+/* DecodeRGB24.java --
+ Copyright (C) 2005 Free Software Foundation, Inc.
+
+This file is part of GNU Classpath.
+
+GNU Classpath is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+GNU Classpath is distributed in the hope that it will be useful, but
+WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GNU Classpath; see the file COPYING. If not, write to the
+Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library. Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module. An independent module is a module which is not derived from
+or based on this library. If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so. If you do not wish to do so, delete this
+exception statement from your version. */
+
+package gnu.javax.imageio.bmp;
+
+import java.io.IOException;
+import javax.imageio.stream.ImageInputStream;
+import java.awt.image.BufferedImage;
+import java.awt.Dimension;
+
+public class DecodeRGB24 extends BMPDecoder {
+
+ public DecodeRGB24(BMPFileHeader fh, BMPInfoHeader ih){
+ super(fh, ih);
+ }
+
+ public BufferedImage decode(ImageInputStream in) throws IOException, BMPException {
+ skipToImage(in);
+
+ Dimension d = infoHeader.getSize();
+ int h = (int)d.getHeight();
+ int w = (int)d.getWidth();
+ BufferedImage image = new BufferedImage(w, h,
+ BufferedImage.TYPE_INT_RGB);
+ // BMP scanlines are padded to dword offsets
+ int scansize = ((w*3 & 3) != 0)? w*3 + 4 - (w*3 & 3): w*3;
+ int[] data = new int[w*h];
+
+ for(int y=h-1;y>=0;y--){
+ byte[] scanline = new byte[scansize];
+ if(in.read(scanline) != scansize)
+ throw new IOException("Couldn't read image data.");
+
+ for(int x=0;x<w;x++)
+ data[x + y*w] = scanline[x*3] +
+ (scanline[x*3+1] << 8) +
+ (scanline[x*3+2] << 16);
+ }
+ image.setRGB(0, 0, w, h, data, 0, w);
+ return image;
+ }
+
+}
diff --git a/libjava/classpath/gnu/javax/imageio/bmp/DecodeRGB4.java b/libjava/classpath/gnu/javax/imageio/bmp/DecodeRGB4.java
new file mode 100644
index 000000000..a904ef745
--- /dev/null
+++ b/libjava/classpath/gnu/javax/imageio/bmp/DecodeRGB4.java
@@ -0,0 +1,90 @@
+/* DecodeRGB4.java --
+ Copyright (C) 2005 Free Software Foundation, Inc.
+
+This file is part of GNU Classpath.
+
+GNU Classpath is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+GNU Classpath is distributed in the hope that it will be useful, but
+WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GNU Classpath; see the file COPYING. If not, write to the
+Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library. Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module. An independent module is a module which is not derived from
+or based on this library. If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so. If you do not wish to do so, delete this
+exception statement from your version. */
+
+package gnu.javax.imageio.bmp;
+
+import java.io.IOException;
+import javax.imageio.stream.ImageInputStream;
+import java.awt.image.BufferedImage;
+import java.awt.image.IndexColorModel;
+import java.awt.image.Raster;
+import java.awt.image.WritableRaster;
+import java.awt.image.DataBuffer;
+import java.awt.image.DataBufferByte;
+import java.awt.image.MultiPixelPackedSampleModel;
+import java.awt.image.SampleModel;
+import java.awt.Dimension;
+
+public class DecodeRGB4 extends BMPDecoder {
+
+ public DecodeRGB4(BMPFileHeader fh, BMPInfoHeader ih){
+ super(fh, ih);
+ }
+
+ public BufferedImage decode(ImageInputStream in) throws IOException, BMPException {
+ IndexColorModel palette = readPalette(in);
+ skipToImage(in);
+
+ Dimension d = infoHeader.getSize();
+ int h = (int)d.getHeight();
+ int w = (int)d.getWidth();
+ int size = (w*h) >> 1;
+
+ // Scanline padded to dword offsets
+ int wbytes = (w + (w & 1)) >> 1;
+ int scansize = ((wbytes & 3) != 0)? (wbytes + 4 - (wbytes&3)) : wbytes;
+
+ byte[] data = new byte[wbytes*h];
+
+ for(int y=h-1;y>=0;y--){
+ byte[] scanline = new byte[scansize];
+ if(in.read(scanline) != scansize)
+ throw new IOException("Couldn't read image data.");
+
+ for(int x=0;x<wbytes;x++)
+ data[x + y*wbytes] = scanline[x];
+ }
+ SampleModel sm = new MultiPixelPackedSampleModel(DataBuffer.TYPE_BYTE,
+ w, h, 4);
+
+ DataBuffer db = new DataBufferByte(data, w*h, 0);
+ WritableRaster raster = Raster.createWritableRaster(sm, db, null);
+
+ return new BufferedImage(palette, raster, false, null);
+ }
+
+}
diff --git a/libjava/classpath/gnu/javax/imageio/bmp/DecodeRGB8.java b/libjava/classpath/gnu/javax/imageio/bmp/DecodeRGB8.java
new file mode 100644
index 000000000..218047e5d
--- /dev/null
+++ b/libjava/classpath/gnu/javax/imageio/bmp/DecodeRGB8.java
@@ -0,0 +1,88 @@
+/* DecodeRGB8.java --
+ Copyright (C) 2005 Free Software Foundation, Inc.
+
+This file is part of GNU Classpath.
+
+GNU Classpath is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+GNU Classpath is distributed in the hope that it will be useful, but
+WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GNU Classpath; see the file COPYING. If not, write to the
+Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library. Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module. An independent module is a module which is not derived from
+or based on this library. If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so. If you do not wish to do so, delete this
+exception statement from your version. */
+
+package gnu.javax.imageio.bmp;
+
+import java.io.IOException;
+import javax.imageio.stream.ImageInputStream;
+import java.awt.image.BufferedImage;
+import java.awt.image.IndexColorModel;
+import java.awt.image.Raster;
+import java.awt.image.WritableRaster;
+import java.awt.image.DataBuffer;
+import java.awt.image.DataBufferByte;
+import java.awt.image.SinglePixelPackedSampleModel;
+import java.awt.image.SampleModel;
+import java.awt.Dimension;
+
+public class DecodeRGB8 extends BMPDecoder {
+
+ public DecodeRGB8(BMPFileHeader fh, BMPInfoHeader ih){
+ super(fh, ih);
+ }
+
+ public BufferedImage decode(ImageInputStream in) throws IOException, BMPException {
+ IndexColorModel palette = readPalette(in);
+ skipToImage(in);
+
+ Dimension d = infoHeader.getSize();
+ int h = (int)d.getHeight();
+ int w = (int)d.getWidth();
+
+ // BMP scanlines are padded to dword offsets
+ int scansize = ((w & 3) != 0)? w + 4 - (w & 3): w;
+ byte[] data = new byte[w*h];
+
+ for(int y=h-1;y>=0;y--){
+ byte[] scanline = new byte[scansize];
+ if(in.read(scanline) != scansize)
+ throw new IOException("Couldn't read image data.");
+
+ for(int x=0;x<w;x++)
+ data[x + y*w] = scanline[x];
+ }
+
+ SampleModel sm = new SinglePixelPackedSampleModel(DataBuffer.TYPE_BYTE,
+ w, h,
+ new int[] {0xFF});
+ DataBuffer db = new DataBufferByte(data, w*h, 0);
+ WritableRaster raster = Raster.createWritableRaster(sm, db, null);
+
+ return new BufferedImage(palette, raster, false, null);
+ }
+
+}
diff --git a/libjava/classpath/gnu/javax/imageio/bmp/DecodeRLE4.java b/libjava/classpath/gnu/javax/imageio/bmp/DecodeRLE4.java
new file mode 100644
index 000000000..1c116c247
--- /dev/null
+++ b/libjava/classpath/gnu/javax/imageio/bmp/DecodeRLE4.java
@@ -0,0 +1,175 @@
+/* DecodeRLE4.java --
+ Copyright (C) 2005 Free Software Foundation, Inc.
+
+This file is part of GNU Classpath.
+
+GNU Classpath is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+GNU Classpath is distributed in the hope that it will be useful, but
+WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GNU Classpath; see the file COPYING. If not, write to the
+Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library. Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module. An independent module is a module which is not derived from
+or based on this library. If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so. If you do not wish to do so, delete this
+exception statement from your version. */
+
+package gnu.javax.imageio.bmp;
+
+import java.io.IOException;
+import javax.imageio.stream.ImageInputStream;
+import java.awt.image.BufferedImage;
+import java.awt.image.IndexColorModel;
+import java.awt.image.Raster;
+import java.awt.image.WritableRaster;
+import java.awt.image.DataBuffer;
+import java.awt.image.DataBufferByte;
+import java.awt.image.MultiPixelPackedSampleModel;
+import java.awt.image.SampleModel;
+import java.awt.Dimension;
+
+public class DecodeRLE4 extends BMPDecoder {
+
+ public DecodeRLE4(BMPFileHeader fh, BMPInfoHeader ih){
+ super(fh, ih);
+ }
+
+ /**
+ * RLE control codes
+ */
+ private static final byte ESCAPE = (byte)0;
+ private static final byte EOL = (byte)0; // end of line
+ private static final byte EOB = (byte)1; // end of bitmap
+ private static final byte DELTA = (byte)2; // delta
+
+ public BufferedImage decode(ImageInputStream in) throws IOException, BMPException {
+ IndexColorModel palette = readPalette(in);
+ skipToImage(in);
+
+ Dimension d = infoHeader.getSize();
+ int h = (int)d.getHeight();
+ int w = (int)d.getWidth();
+
+ byte[] data = uncompress(w, h, in);
+ SampleModel sm = new MultiPixelPackedSampleModel(DataBuffer.TYPE_BYTE,
+ w, h, 4);
+
+ DataBuffer db = new DataBufferByte(data, w*h, 0);
+ WritableRaster raster = Raster.createWritableRaster(sm, db, null);
+
+ return new BufferedImage(palette, raster, false, null);
+ }
+
+ private byte[] uncompress(int w, int h, ImageInputStream in)
+ throws BMPException, IOException {
+ byte[] cmd = new byte[2];
+ byte[] data = new byte[w*h>>1];
+ int offIn = 0;
+ int x=0,y=0;
+
+ // width in bytes
+ w += (w&1);
+ w = w >> 1;
+
+ try {
+ while(((x>>1) + y*w) < w*h){
+ if(in.read(cmd) != 2)
+ throw new IOException("Error reading compressed data.");
+
+ if(cmd[0] == ESCAPE){
+ switch(cmd[1]){
+ case EOB: // end of bitmap
+ return data;
+ case EOL: // end of line
+ x = 0;
+ y++;
+ break;
+ case DELTA: // delta
+ if(in.read(cmd) != 2)
+ throw new IOException("Error reading compressed data.");
+ int dx = cmd[0] & (0xFF);
+ int dy = cmd[1] & (0xFF);
+ x += dx;
+ y += dy;
+ break;
+
+ default:
+ // decode a literal run
+ int length = cmd[1] & (0xFF);
+
+ // size of run, which is word aligned.
+ int bytesize = length;
+ bytesize += (bytesize & 1);
+ bytesize >>= 1;
+ bytesize += (bytesize & 1);
+
+ byte[] run = new byte[bytesize];
+ if(in.read(run) != bytesize)
+ throw new IOException("Error reading compressed data.");
+
+ if((x&1) == 0){
+ length += (length&1);
+ length >>= 1;
+ System.arraycopy(run, 0, data, ((x>>1) + w*(h-y-1)),
+ length);
+ } else {
+ for(int i=0;i<length;i++){
+ if((i&1) == 0) // copy high to low
+ data[((x+i)>>1) + w*(h-y-1)]
+ |= ((run[i>>1]&0xF0) >> 4);
+ else // copy low to high
+ data[((x+i)>>1) + w*(h-y-1)]
+ |= ((run[i>>1]&0x0F) << 4);
+ }
+ }
+ x += cmd[1] & (0xFF);
+ break;
+ }
+ } else {
+ // decode a byte run
+ int length = cmd[0] & (0xFF);
+ if((x&1) == 0){
+ length += (length&1);
+ length >>= 1;
+ for(int i=0;i<length;i++)
+ data[(h-y-1)*w + i + (x >> 1)] = cmd[1];
+ } else {
+ for(int i=0;i<length;i++){
+ if((i&1) == 0) // copy high to low
+ data[((x+i)>>1) + w*(h-y-1)]
+ |= ((cmd[1]&0xF0) >> 4);
+ else // copy low to high
+ data[((x+i)>>1) + w*(h-y-1)]
+ |= ((cmd[1]&0x0F) << 4);
+ }
+ }
+ x += cmd[0] & (0xFF);
+ }
+ }
+ return data;
+ } catch(ArrayIndexOutOfBoundsException e){
+ throw new BMPException("Invalid RLE data.");
+ }
+ }
+}
diff --git a/libjava/classpath/gnu/javax/imageio/bmp/DecodeRLE8.java b/libjava/classpath/gnu/javax/imageio/bmp/DecodeRLE8.java
new file mode 100644
index 000000000..afc3da89e
--- /dev/null
+++ b/libjava/classpath/gnu/javax/imageio/bmp/DecodeRLE8.java
@@ -0,0 +1,142 @@
+/* DecodeRLE8.java --
+ Copyright (C) 2005 Free Software Foundation, Inc.
+
+This file is part of GNU Classpath.
+
+GNU Classpath is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+GNU Classpath is distributed in the hope that it will be useful, but
+WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GNU Classpath; see the file COPYING. If not, write to the
+Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library. Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module. An independent module is a module which is not derived from
+or based on this library. If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so. If you do not wish to do so, delete this
+exception statement from your version. */
+
+package gnu.javax.imageio.bmp;
+
+import java.io.IOException;
+import javax.imageio.stream.ImageInputStream;
+import java.awt.image.BufferedImage;
+import java.awt.image.IndexColorModel;
+import java.awt.image.Raster;
+import java.awt.image.WritableRaster;
+import java.awt.image.DataBuffer;
+import java.awt.image.DataBufferByte;
+import java.awt.image.SinglePixelPackedSampleModel;
+import java.awt.image.SampleModel;
+import java.awt.Dimension;
+
+public class DecodeRLE8 extends BMPDecoder {
+
+ public DecodeRLE8(BMPFileHeader fh, BMPInfoHeader ih){
+ super(fh, ih);
+ }
+
+ /**
+ * RLE control codes
+ */
+ private static final byte ESCAPE = (byte)0;
+ private static final byte EOL = (byte)0; // end of line
+ private static final byte EOB = (byte)1; // end of bitmap
+ private static final byte DELTA = (byte)2; // delta
+
+ public BufferedImage decode(ImageInputStream in) throws IOException, BMPException {
+ IndexColorModel palette = readPalette(in);
+ skipToImage(in);
+
+ Dimension d = infoHeader.getSize();
+ int h = (int)d.getHeight();
+ int w = (int)d.getWidth();
+
+ byte[] data = uncompress(w, h, in);
+ SampleModel sm = new SinglePixelPackedSampleModel(DataBuffer.TYPE_BYTE,
+ w, h,
+ new int[] {0xFF});
+ DataBuffer db = new DataBufferByte(data, w*h, 0);
+ WritableRaster raster = Raster.createWritableRaster(sm, db, null);
+
+ return new BufferedImage(palette, raster, false, null);
+ }
+
+ private byte[] uncompress(int w, int h, ImageInputStream in)
+ throws BMPException, IOException {
+ byte[] cmd = new byte[2];
+ byte[] data = new byte[w*h];
+ int offIn = 0;
+ int x=0,y=0;
+
+ try {
+ while((x + y*w) < w*h){
+ if(in.read(cmd) != 2)
+ throw new IOException("Error reading compressed data.");
+
+ if(cmd[0] == ESCAPE){
+ switch(cmd[1]){
+ case EOB: // end of bitmap
+ return data;
+ case EOL: // end of line
+ x = 0;
+ y++;
+ break;
+ case DELTA: // delta
+ if(in.read(cmd) != 2)
+ throw new IOException("Error reading compressed data.");
+ int dx = cmd[0] & (0xFF);
+ int dy = cmd[1] & (0xFF);
+ x += dx;
+ y += dy;
+ break;
+
+ default:
+ // decode a literal run
+ int length = cmd[1] & (0xFF);
+ int copylength = length;
+
+ // absolute mode must be word-aligned
+ length += (length & 1);
+
+ byte[] run = new byte[length];
+ if(in.read(run) != length)
+ throw new IOException("Error reading compressed data.");
+
+ System.arraycopy(run, 0, data, (x+w*(h-y-1)),
+ copylength);
+ x += copylength;
+ break;
+ }
+ } else {
+ // decode a byte run
+ int length = cmd[0] & (0xFF);
+ for(int i=0;i<length;i++)
+ data[(h-y-1)*w + x++] = cmd[1];
+ }
+ }
+ return data;
+ } catch(ArrayIndexOutOfBoundsException e){
+ throw new BMPException("Invalid RLE data.");
+ }
+ }
+}
diff --git a/libjava/classpath/gnu/javax/imageio/bmp/EncodeRGB1.java b/libjava/classpath/gnu/javax/imageio/bmp/EncodeRGB1.java
new file mode 100644
index 000000000..ffe671dc0
--- /dev/null
+++ b/libjava/classpath/gnu/javax/imageio/bmp/EncodeRGB1.java
@@ -0,0 +1,128 @@
+/* EncodeRGB1.java --
+ Copyright (C) 2006 Free Software Foundation, Inc.
+
+This file is part of GNU Classpath.
+
+GNU Classpath is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+GNU Classpath is distributed in the hope that it will be useful, but
+WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GNU Classpath; see the file COPYING. If not, write to the
+Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library. Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module. An independent module is a module which is not derived from
+or based on this library. If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so. If you do not wish to do so, delete this
+exception statement from your version. */
+
+
+package gnu.javax.imageio.bmp;
+
+import java.awt.image.BufferedImage;
+import java.awt.image.PixelGrabber;
+import java.io.IOException;
+
+import javax.imageio.IIOImage;
+import javax.imageio.ImageWriteParam;
+import javax.imageio.metadata.IIOMetadata;
+import javax.imageio.stream.ImageOutputStream;
+
+public class EncodeRGB1
+ extends BMPEncoder
+{
+ protected BMPInfoHeader infoHeader;
+ protected BMPFileHeader fileHeader;
+ protected long offset;
+
+ /**
+ * Constructs an instance of this class.
+ *
+ * @param fh - the file header to use.
+ * @param ih - the info header to use.
+ */
+ public EncodeRGB1(BMPFileHeader fh, BMPInfoHeader ih)
+ {
+ super();
+ fileHeader = fh;
+ infoHeader = ih;
+ offset = BMPFileHeader.SIZE + BMPInfoHeader.SIZE;
+ }
+
+ /**
+ * The image encoder.
+ *
+ * @param o - the image output stream
+ * @param streamMetadata - metadata associated with this stream, or
+ * null
+ * @param image - an IIOImage containing image data.
+ * @param param - image writing parameters, or null
+ * @exception IOException if a write error occurs
+ */
+ public void encode(ImageOutputStream o, IIOMetadata streamMetadata,
+ IIOImage image, ImageWriteParam param) throws IOException
+ {
+ int size;
+ int value;
+ int j;
+ int rowCount;
+ int rowIndex;
+ int lastRowIndex;
+ int[] bitmap;
+ byte rgb[] = new byte[1];
+ size = (infoHeader.biWidth * infoHeader.biHeight) - 1;
+ rowCount = 1;
+ rowIndex = size - infoHeader.biWidth;
+ lastRowIndex = rowIndex;
+ try
+ {
+ bitmap = new int[infoHeader.biWidth * infoHeader.biHeight];
+ PixelGrabber pg = new PixelGrabber((BufferedImage) image.getRenderedImage(),
+ 0, 0, infoHeader.biWidth,
+ infoHeader.biHeight, bitmap, 0,
+ infoHeader.biWidth);
+ pg.grabPixels();
+
+ for (j = 0; j < size; j++)
+ {
+ value = bitmap[rowIndex];
+
+ rgb[0] = (byte) (value & 0xFF);
+
+ o.write(rgb);
+ if (rowCount == infoHeader.biWidth)
+ {
+ rowCount = 1;
+ rowIndex = lastRowIndex - infoHeader.biWidth;
+ lastRowIndex = rowIndex;
+ }
+ else
+ rowCount++;
+ rowIndex++;
+ }
+ }
+ catch (Exception wb)
+ {
+ wb.printStackTrace();
+ }
+ }
+}
diff --git a/libjava/classpath/gnu/javax/imageio/bmp/EncodeRGB16.java b/libjava/classpath/gnu/javax/imageio/bmp/EncodeRGB16.java
new file mode 100644
index 000000000..a5450cc67
--- /dev/null
+++ b/libjava/classpath/gnu/javax/imageio/bmp/EncodeRGB16.java
@@ -0,0 +1,129 @@
+/* EncodeRGB16.java --
+ Copyright (C) 2006 Free Software Foundation, Inc.
+
+This file is part of GNU Classpath.
+
+GNU Classpath is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+GNU Classpath is distributed in the hope that it will be useful, but
+WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GNU Classpath; see the file COPYING. If not, write to the
+Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library. Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module. An independent module is a module which is not derived from
+or based on this library. If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so. If you do not wish to do so, delete this
+exception statement from your version. */
+
+
+package gnu.javax.imageio.bmp;
+
+import java.awt.image.BufferedImage;
+import java.awt.image.PixelGrabber;
+import java.io.IOException;
+
+import javax.imageio.IIOImage;
+import javax.imageio.ImageWriteParam;
+import javax.imageio.metadata.IIOMetadata;
+import javax.imageio.stream.ImageOutputStream;
+
+public class EncodeRGB16
+ extends BMPEncoder
+{
+ protected BMPInfoHeader infoHeader;
+ protected BMPFileHeader fileHeader;
+ protected long offset;
+
+ /**
+ * Constructs an instance of this class.
+ *
+ * @param fh - the file header to use.
+ * @param ih - the info header to use.
+ */
+ public EncodeRGB16(BMPFileHeader fh, BMPInfoHeader ih)
+ {
+ super();
+ fileHeader = fh;
+ infoHeader = ih;
+ offset = BMPFileHeader.SIZE + BMPInfoHeader.SIZE;
+ }
+
+ /**
+ * The image encoder.
+ *
+ * @param o - the image output stream
+ * @param streamMetadata - metadata associated with this stream, or
+ * null
+ * @param image - an IIOImage containing image data.
+ * @param param - image writing parameters, or null
+ * @exception IOException if a write error occurs
+ */
+ public void encode(ImageOutputStream o, IIOMetadata streamMetadata,
+ IIOImage image, ImageWriteParam param) throws IOException
+ {
+ int size;
+ int value;
+ int j;
+ int rowCount;
+ int rowIndex;
+ int lastRowIndex;
+ int[] bitmap;
+ byte rgb[] = new byte[2];
+ size = (infoHeader.biWidth * infoHeader.biHeight) - 1;
+ rowCount = 1;
+ rowIndex = size - infoHeader.biWidth;
+ lastRowIndex = rowIndex;
+ try
+ {
+ bitmap = new int[infoHeader.biWidth * infoHeader.biHeight];
+ PixelGrabber pg = new PixelGrabber((BufferedImage) image.getRenderedImage(),
+ 0, 0, infoHeader.biWidth,
+ infoHeader.biHeight, bitmap, 0,
+ infoHeader.biWidth);
+ pg.grabPixels();
+
+ for (j = 0; j < size; j++)
+ {
+ value = bitmap[rowIndex];
+
+ rgb[0] = (byte) (value & 0xFF);
+ rgb[1] = (byte) (value >> 8 & 0xFF);
+
+ o.write(rgb);
+ if (rowCount == infoHeader.biWidth)
+ {
+ rowCount = 1;
+ rowIndex = lastRowIndex - infoHeader.biWidth;
+ lastRowIndex = rowIndex;
+ }
+ else
+ rowCount++;
+ rowIndex++;
+ }
+ }
+ catch (Exception wb)
+ {
+ wb.printStackTrace();
+ }
+ }
+}
diff --git a/libjava/classpath/gnu/javax/imageio/bmp/EncodeRGB24.java b/libjava/classpath/gnu/javax/imageio/bmp/EncodeRGB24.java
new file mode 100644
index 000000000..7fbc83e2e
--- /dev/null
+++ b/libjava/classpath/gnu/javax/imageio/bmp/EncodeRGB24.java
@@ -0,0 +1,129 @@
+/* EncodeRGB24.java --
+ Copyright (C) 2006 Free Software Foundation, Inc.
+
+This file is part of GNU Classpath.
+
+GNU Classpath is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+GNU Classpath is distributed in the hope that it will be useful, but
+WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GNU Classpath; see the file COPYING. If not, write to the
+Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library. Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module. An independent module is a module which is not derived from
+or based on this library. If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so. If you do not wish to do so, delete this
+exception statement from your version. */
+
+
+package gnu.javax.imageio.bmp;
+
+import java.awt.image.BufferedImage;
+import java.awt.image.PixelGrabber;
+import java.io.IOException;
+
+import javax.imageio.IIOImage;
+import javax.imageio.ImageWriteParam;
+import javax.imageio.metadata.IIOMetadata;
+import javax.imageio.stream.ImageOutputStream;
+
+public class EncodeRGB24
+ extends BMPEncoder
+{
+ protected BMPInfoHeader infoHeader;
+ protected BMPFileHeader fileHeader;
+ protected long offset;
+
+ /**
+ * Constructs an instance of this class.
+ *
+ * @param fh - the file header to use.
+ * @param ih - the info header to use.
+ */
+ public EncodeRGB24(BMPFileHeader fh, BMPInfoHeader ih)
+ {
+ super();
+ fileHeader = fh;
+ infoHeader = ih;
+ offset = BMPFileHeader.SIZE + BMPInfoHeader.SIZE;
+ }
+
+ /**
+ * The image encoder.
+ *
+ * @param o - the image output stream
+ * @param streamMetadata - metadata associated with this stream, or
+ * null
+ * @param image - an IIOImage containing image data.
+ * @param param - image writing parameters, or null
+ * @exception IOException if a write error occurs
+ */
+ public void encode(ImageOutputStream o, IIOMetadata streamMetadata,
+ IIOImage image, ImageWriteParam param) throws IOException
+ {
+ int size;
+ int value;
+ int j;
+ int rowCount;
+ int rowIndex;
+ int lastRowIndex;
+ int[] bitmap;
+ byte rgb[] = new byte[3];
+ size = (infoHeader.biWidth * infoHeader.biHeight) - 1;
+ rowCount = 1;
+ rowIndex = size - infoHeader.biWidth;
+ lastRowIndex = rowIndex;
+ try
+ {
+ bitmap = new int[infoHeader.biWidth * infoHeader.biHeight];
+ PixelGrabber pg = new PixelGrabber((BufferedImage) image.getRenderedImage(),
+ 0, 0, infoHeader.biWidth,
+ infoHeader.biHeight, bitmap, 0,
+ infoHeader.biWidth);
+ pg.grabPixels();
+
+ for (j = 0; j < size; j++)
+ {
+ value = bitmap[rowIndex];
+
+ rgb[0] = (byte) (value & 0xFF);
+ rgb[1] = (byte) ((value >> 8) & 0xFF);
+ rgb[2] = (byte) ((value >> 16) & 0xFF);
+ o.write(rgb);
+ if (rowCount == infoHeader.biWidth)
+ {
+ rowCount = 1;
+ rowIndex = lastRowIndex - infoHeader.biWidth;
+ lastRowIndex = rowIndex;
+ }
+ else
+ rowCount++;
+ rowIndex++;
+ }
+ }
+ catch (Exception wb)
+ {
+ wb.printStackTrace();
+ }
+ }
+}
diff --git a/libjava/classpath/gnu/javax/imageio/bmp/EncodeRGB32.java b/libjava/classpath/gnu/javax/imageio/bmp/EncodeRGB32.java
new file mode 100644
index 000000000..7deca3049
--- /dev/null
+++ b/libjava/classpath/gnu/javax/imageio/bmp/EncodeRGB32.java
@@ -0,0 +1,129 @@
+/* EncodeRGB32.java --
+ Copyright (C) 2006 Free Software Foundation, Inc.
+
+This file is part of GNU Classpath.
+
+GNU Classpath is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+GNU Classpath is distributed in the hope that it will be useful, but
+WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GNU Classpath; see the file COPYING. If not, write to the
+Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library. Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module. An independent module is a module which is not derived from
+or based on this library. If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so. If you do not wish to do so, delete this
+exception statement from your version. */
+
+
+package gnu.javax.imageio.bmp;
+
+import java.awt.image.BufferedImage;
+import java.awt.image.PixelGrabber;
+import java.io.IOException;
+
+import javax.imageio.IIOImage;
+import javax.imageio.ImageWriteParam;
+import javax.imageio.metadata.IIOMetadata;
+import javax.imageio.stream.ImageOutputStream;
+
+public class EncodeRGB32
+ extends BMPEncoder
+{
+ protected BMPInfoHeader infoHeader;
+ protected BMPFileHeader fileHeader;
+ protected long offset;
+
+ /**
+ * Constructs an instance of this class.
+ *
+ * @param fh - the file header to use.
+ * @param ih - the info header to use.
+ */
+ public EncodeRGB32(BMPFileHeader fh, BMPInfoHeader ih)
+ {
+ super();
+ fileHeader = fh;
+ infoHeader = ih;
+ offset = BMPFileHeader.SIZE + BMPInfoHeader.SIZE;
+ }
+
+ /**
+ * The image encoder.
+ *
+ * @param o - the image output stream
+ * @param streamMetadata - metadata associated with this stream, or null
+ * @param image - an IIOImage containing image data.
+ * @param param - image writing parameters, or null
+ * @exception IOException if a write error occurs
+ */
+ public void encode(ImageOutputStream o, IIOMetadata streamMetadata,
+ IIOImage image, ImageWriteParam param) throws IOException
+ {
+ int size;
+ int value;
+ int j;
+ int rowCount;
+ int rowIndex;
+ int lastRowIndex;
+ int[] bitmap;
+ byte rgb[] = new byte[4];
+ size = (infoHeader.biWidth * infoHeader.biHeight) - 1;
+ rowCount = 1;
+ rowIndex = size - infoHeader.biWidth;
+ lastRowIndex = rowIndex;
+ try
+ {
+ bitmap = new int[infoHeader.biWidth * infoHeader.biHeight];
+ PixelGrabber pg = new PixelGrabber((BufferedImage) image.getRenderedImage(),
+ 0, 0, infoHeader.biWidth,
+ infoHeader.biHeight, bitmap, 0,
+ infoHeader.biWidth);
+ pg.grabPixels();
+
+ for (j = 0; j < size; j++)
+ {
+ value = bitmap[rowIndex];
+
+ rgb[0] = (byte) (value & 0xFF);
+ rgb[1] = (byte) ((value >> 8) & 0xFF);
+ rgb[2] = (byte) ((value >> 16) & 0xFF);
+ rgb[3] = (byte) ((value >> 24) & 0xFF);
+ o.write(rgb);
+ if (rowCount == infoHeader.biWidth)
+ {
+ rowCount = 1;
+ rowIndex = lastRowIndex - infoHeader.biWidth;
+ lastRowIndex = rowIndex;
+ }
+ else
+ rowCount++;
+ rowIndex++;
+ }
+ }
+ catch (Exception wb)
+ {
+ wb.printStackTrace();
+ }
+ }
+}
diff --git a/libjava/classpath/gnu/javax/imageio/bmp/EncodeRGB4.java b/libjava/classpath/gnu/javax/imageio/bmp/EncodeRGB4.java
new file mode 100644
index 000000000..b62283a7d
--- /dev/null
+++ b/libjava/classpath/gnu/javax/imageio/bmp/EncodeRGB4.java
@@ -0,0 +1,128 @@
+/* EncodeRGB4.java --
+ Copyright (C) 2006 Free Software Foundation, Inc.
+
+This file is part of GNU Classpath.
+
+GNU Classpath is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+GNU Classpath is distributed in the hope that it will be useful, but
+WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GNU Classpath; see the file COPYING. If not, write to the
+Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library. Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module. An independent module is a module which is not derived from
+or based on this library. If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so. If you do not wish to do so, delete this
+exception statement from your version. */
+
+
+package gnu.javax.imageio.bmp;
+
+import java.awt.image.BufferedImage;
+import java.awt.image.PixelGrabber;
+import java.io.IOException;
+
+import javax.imageio.IIOImage;
+import javax.imageio.ImageWriteParam;
+import javax.imageio.metadata.IIOMetadata;
+import javax.imageio.stream.ImageOutputStream;
+
+public class EncodeRGB4
+ extends BMPEncoder
+{
+ protected BMPInfoHeader infoHeader;
+ protected BMPFileHeader fileHeader;
+ protected long offset;
+
+ /**
+ * Constructs an instance of this class.
+ *
+ * @param fh - the file header to use.
+ * @param ih - the info header to use.
+ */
+ public EncodeRGB4(BMPFileHeader fh, BMPInfoHeader ih)
+ {
+ super();
+ fileHeader = fh;
+ infoHeader = ih;
+ offset = BMPFileHeader.SIZE + BMPInfoHeader.SIZE;
+ }
+
+ /**
+ * The image encoder.
+ *
+ * @param o - the image output stream
+ * @param streamMetadata - metadata associated with this stream, or
+ * null
+ * @param image - an IIOImage containing image data.
+ * @param param - image writing parameters, or null
+ * @exception IOException if a write error occurs
+ */
+ public void encode(ImageOutputStream o, IIOMetadata streamMetadata,
+ IIOImage image, ImageWriteParam param) throws IOException
+ {
+ int size;
+ int value;
+ int j;
+ int rowCount;
+ int rowIndex;
+ int lastRowIndex;
+ int[] bitmap;
+ byte rgb[] = new byte[1];
+ size = (infoHeader.biWidth * infoHeader.biHeight) - 1;
+ rowCount = 1;
+ rowIndex = size - infoHeader.biWidth;
+ lastRowIndex = rowIndex;
+ try
+ {
+ bitmap = new int[infoHeader.biWidth * infoHeader.biHeight];
+ PixelGrabber pg = new PixelGrabber((BufferedImage) image.getRenderedImage(),
+ 0, 0, infoHeader.biWidth,
+ infoHeader.biHeight, bitmap, 0,
+ infoHeader.biWidth);
+ pg.grabPixels();
+
+ for (j = 0; j < size; j++)
+ {
+ value = bitmap[rowIndex];
+
+ rgb[0] = (byte) (value & 0xFF);
+
+ o.write(rgb);
+ if (rowCount == infoHeader.biWidth)
+ {
+ rowCount = 1;
+ rowIndex = lastRowIndex - infoHeader.biWidth;
+ lastRowIndex = rowIndex;
+ }
+ else
+ rowCount++;
+ rowIndex++;
+ }
+ }
+ catch (Exception wb)
+ {
+ wb.printStackTrace();
+ }
+ }
+}
diff --git a/libjava/classpath/gnu/javax/imageio/bmp/EncodeRGB8.java b/libjava/classpath/gnu/javax/imageio/bmp/EncodeRGB8.java
new file mode 100644
index 000000000..ef0594a5f
--- /dev/null
+++ b/libjava/classpath/gnu/javax/imageio/bmp/EncodeRGB8.java
@@ -0,0 +1,127 @@
+/* EncodeRGB8.java --
+ Copyright (C) 2006 Free Software Foundation, Inc.
+
+This file is part of GNU Classpath.
+
+GNU Classpath is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+GNU Classpath is distributed in the hope that it will be useful, but
+WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GNU Classpath; see the file COPYING. If not, write to the
+Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library. Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module. An independent module is a module which is not derived from
+or based on this library. If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so. If you do not wish to do so, delete this
+exception statement from your version. */
+
+
+package gnu.javax.imageio.bmp;
+
+import java.awt.image.BufferedImage;
+import java.awt.image.PixelGrabber;
+import java.io.IOException;
+
+import javax.imageio.IIOImage;
+import javax.imageio.ImageWriteParam;
+import javax.imageio.metadata.IIOMetadata;
+import javax.imageio.stream.ImageOutputStream;
+
+public class EncodeRGB8
+ extends BMPEncoder
+{
+ protected BMPInfoHeader infoHeader;
+ protected BMPFileHeader fileHeader;
+ protected long offset;
+
+ /**
+ * Constructs an instance of this class.
+ *
+ * @param fh - the file header to use.
+ * @param ih - the info header to use.
+ */
+ public EncodeRGB8(BMPFileHeader fh, BMPInfoHeader ih)
+ {
+ super();
+ fileHeader = fh;
+ infoHeader = ih;
+ offset = BMPFileHeader.SIZE + BMPInfoHeader.SIZE;
+ }
+
+ /**
+ * The image encoder.
+ *
+ * @param o - the image output stream
+ * @param streamMetadata - metadata associated with this stream, or
+ * null
+ * @param image - an IIOImage containing image data.
+ * @param param - image writing parameters, or null
+ * @exception IOException if a write error occurs
+ */
+ public void encode(ImageOutputStream o, IIOMetadata streamMetadata,
+ IIOImage image, ImageWriteParam param) throws IOException
+ {
+ int size;
+ int value;
+ int j;
+ int rowCount;
+ int rowIndex;
+ int lastRowIndex;
+ int[] bitmap;
+ byte rgb[] = new byte[1];
+ size = (infoHeader.biWidth * infoHeader.biHeight) - 1;
+ rowCount = 1;
+ rowIndex = size - infoHeader.biWidth;
+ lastRowIndex = rowIndex;
+ try
+ {
+ bitmap = new int[infoHeader.biWidth * infoHeader.biHeight];
+ PixelGrabber pg = new PixelGrabber((BufferedImage) image.getRenderedImage(),
+ 0, 0, infoHeader.biWidth,
+ infoHeader.biHeight, bitmap, 0,
+ infoHeader.biWidth);
+ pg.grabPixels();
+
+ for (j = 0; j < size; j++)
+ {
+ value = bitmap[rowIndex];
+
+ rgb[0] = (byte) (value & 0xFF);
+ o.write(rgb);
+ if (rowCount == infoHeader.biWidth)
+ {
+ rowCount = 1;
+ rowIndex = lastRowIndex - infoHeader.biWidth;
+ lastRowIndex = rowIndex;
+ }
+ else
+ rowCount++;
+ rowIndex++;
+ }
+ }
+ catch (Exception wb)
+ {
+ wb.printStackTrace();
+ }
+ }
+}
diff --git a/libjava/classpath/gnu/javax/imageio/bmp/EncodeRLE4.java b/libjava/classpath/gnu/javax/imageio/bmp/EncodeRLE4.java
new file mode 100644
index 000000000..c54c3ca87
--- /dev/null
+++ b/libjava/classpath/gnu/javax/imageio/bmp/EncodeRLE4.java
@@ -0,0 +1,269 @@
+/* EncodeRLE4.java --
+ Copyright (C) 2006 Free Software Foundation, Inc.
+
+This file is part of GNU Classpath.
+
+GNU Classpath is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+GNU Classpath is distributed in the hope that it will be useful, but
+WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GNU Classpath; see the file COPYING. If not, write to the
+Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library. Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module. An independent module is a module which is not derived from
+or based on this library. If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so. If you do not wish to do so, delete this
+exception statement from your version. */
+
+
+package gnu.javax.imageio.bmp;
+
+import java.awt.image.BufferedImage;
+import java.awt.image.PixelGrabber;
+import java.io.IOException;
+import java.nio.BufferUnderflowException;
+import java.nio.ByteBuffer;
+
+import javax.imageio.IIOImage;
+import javax.imageio.ImageWriteParam;
+import javax.imageio.metadata.IIOMetadata;
+import javax.imageio.stream.ImageOutputStream;
+
+public class EncodeRLE4
+ extends BMPEncoder
+{
+ protected BMPInfoHeader infoHeader;
+ protected BMPFileHeader fileHeader;
+ protected long offset;
+
+ /**
+ * RLE control codes
+ */
+ private static final byte ESCAPE = (byte)0;
+ private static final byte EOL = (byte)0; // end of line
+ private static final byte EOB = (byte)1; // end of bitmap
+ private static final byte DELTA = (byte)2; // delta
+
+ /**
+ * Constructs an instance of this class.
+ *
+ * @param fh - the file header to use.
+ * @param ih - the info header to use.
+ */
+ public EncodeRLE4(BMPFileHeader fh, BMPInfoHeader ih)
+ {
+ super();
+ fileHeader = fh;
+ infoHeader = ih;
+ offset = BMPFileHeader.SIZE + BMPInfoHeader.SIZE;
+ }
+
+ /**
+ * The image encoder.
+ *
+ * @param o - the image output stream
+ * @param streamMetadata - metadata associated with this stream, or
+ * null
+ * @param image - an IIOImage containing image data.
+ * @param param - image writing parameters, or null
+ * @exception IOException if a write error occurs
+ */
+ public void encode(ImageOutputStream o, IIOMetadata streamMetadata,
+ IIOImage image, ImageWriteParam param) throws IOException
+ {
+ int size;
+ int value;
+ int j;
+ int rowCount;
+ int rowIndex;
+ int lastRowIndex;
+ int[] bitmap;
+ size = (infoHeader.biWidth * infoHeader.biHeight) - 1;
+ rowCount = 1;
+ rowIndex = size - infoHeader.biWidth;
+ lastRowIndex = rowIndex;
+ ByteBuffer buf = ByteBuffer.allocate(size);
+ try
+ {
+ bitmap = new int[infoHeader.biWidth * infoHeader.biHeight];
+ PixelGrabber pg = new PixelGrabber((BufferedImage) image.getRenderedImage(),
+ 0, 0, infoHeader.biWidth,
+ infoHeader.biHeight, bitmap, 0,
+ infoHeader.biWidth);
+ pg.grabPixels();
+
+ for (j = 0; j < size; j++)
+ {
+ value = bitmap[rowIndex];
+ buf.put((byte) (value & 0xFF));
+
+ if (rowCount == infoHeader.biWidth)
+ {
+ rowCount = 1;
+ rowIndex = lastRowIndex - infoHeader.biWidth;
+ lastRowIndex = rowIndex;
+ }
+ else
+ rowCount++;
+ rowIndex++;
+ }
+
+ buf.flip();
+ o.write(uncompress(infoHeader.biWidth, infoHeader.biHeight, buf));
+ }
+ catch (Exception wb)
+ {
+ wb.printStackTrace();
+ }
+ }
+
+ /**
+ * Uncompresses the image stored in the buffer.
+ *
+ * @param w - the width of the image
+ * @param h - the height of the image
+ * @param buf - the ByteBuffer containing the pixel values.
+ * @return byte array containing the uncompressed image
+ * @throws IOException if an error is encountered while reading
+ * buffer.
+ */
+ private byte[] uncompress(int w, int h, ByteBuffer buf)
+ throws IOException
+ {
+ byte[] cmd = new byte[2];
+ byte[] data = new byte[w * h >> 1];
+ int offIn = 0;
+ int x = 0, y = 0;
+
+ w += (w & 1);
+ w = w >> 1;
+
+ try
+ {
+ while (((x >> 1) + y * w) < w * h)
+ {
+ try
+ {
+ buf.get(cmd);
+ }
+ catch (BufferUnderflowException e)
+ {
+ throw new IOException("Error reading compressed data.");
+ }
+
+ if (cmd[0] == ESCAPE)
+ {
+ switch (cmd[1])
+ {
+ case EOB:
+ return data;
+ case EOL:
+ x = 0;
+ y++;
+ break;
+ case DELTA:
+ try
+ {
+ buf.get(cmd);
+ }
+ catch (BufferUnderflowException e)
+ {
+ throw new IOException("Error reading compressed data.");
+ }
+
+ int dx = cmd[0] & (0xFF);
+ int dy = cmd[1] & (0xFF);
+ x += dx;
+ y += dy;
+ break;
+
+ default:
+ int length = cmd[1] & (0xFF);
+
+ int bytesize = length;
+ bytesize += (bytesize & 1);
+ bytesize >>= 1;
+ bytesize += (bytesize & 1);
+
+ byte[] run = new byte[bytesize];
+ try
+ {
+ buf.get(run);
+ }
+ catch (BufferUnderflowException e)
+ {
+ throw new IOException("Error reading compressed data.");
+ }
+
+ if ((x & 1) == 0)
+ {
+ length += (length & 1);
+ length >>= 1;
+ System.arraycopy(run, 0, data,
+ ((x >> 1) + w * (h - y - 1)), length);
+ }
+ else
+ {
+ for (int i = 0; i < length; i++)
+ {
+ if ((i & 1) == 0)
+ data[((x + i) >> 1) + w * (h - y - 1)] |= ((run[i >> 1] & 0xF0) >> 4);
+ else
+ data[((x + i) >> 1) + w * (h - y - 1)] |= ((run[i >> 1] & 0x0F) << 4);
+ }
+ }
+ x += cmd[1] & (0xFF);
+ break;
+ }
+ }
+ else
+ {
+ int length = cmd[0] & (0xFF);
+ if ((x & 1) == 0)
+ {
+ length += (length & 1);
+ length >>= 1;
+ for (int i = 0; i < length; i++)
+ data[(h - y - 1) * w + i + (x >> 1)] = cmd[1];
+ }
+ else
+ {
+ for (int i = 0; i < length; i++)
+ {
+ if ((i & 1) == 0)
+ data[((x + i) >> 1) + w * (h - y - 1)] |= ((cmd[1] & 0xF0) >> 4);
+ else
+ data[((x + i) >> 1) + w * (h - y - 1)] |= ((cmd[1] & 0x0F) << 4);
+ }
+ }
+ x += cmd[0] & (0xFF);
+ }
+ }
+ return data;
+ }
+ catch (ArrayIndexOutOfBoundsException e)
+ {
+ throw new BMPException("Invalid RLE data.");
+ }
+ }
+}
diff --git a/libjava/classpath/gnu/javax/imageio/bmp/EncodeRLE8.java b/libjava/classpath/gnu/javax/imageio/bmp/EncodeRLE8.java
new file mode 100644
index 000000000..62277ef90
--- /dev/null
+++ b/libjava/classpath/gnu/javax/imageio/bmp/EncodeRLE8.java
@@ -0,0 +1,234 @@
+/* EncodeRGB32.java --
+ Copyright (C) 2006 Free Software Foundation, Inc.
+
+This file is part of GNU Classpath.
+
+GNU Classpath is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+GNU Classpath is distributed in the hope that it will be useful, but
+WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GNU Classpath; see the file COPYING. If not, write to the
+Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library. Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module. An independent module is a module which is not derived from
+or based on this library. If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so. If you do not wish to do so, delete this
+exception statement from your version. */
+
+
+package gnu.javax.imageio.bmp;
+
+import java.awt.image.BufferedImage;
+import java.awt.image.PixelGrabber;
+import java.io.IOException;
+import java.nio.BufferUnderflowException;
+import java.nio.ByteBuffer;
+
+import javax.imageio.IIOImage;
+import javax.imageio.ImageWriteParam;
+import javax.imageio.metadata.IIOMetadata;
+import javax.imageio.stream.ImageOutputStream;
+
+public class EncodeRLE8
+ extends BMPEncoder
+{
+ protected BMPInfoHeader infoHeader;
+ protected BMPFileHeader fileHeader;
+ protected long offset;
+
+ /**
+ * RLE control codes
+ */
+ private static final byte ESCAPE = (byte)0;
+ private static final byte EOL = (byte)0; // end of line
+ private static final byte EOB = (byte)1; // end of bitmap
+ private static final byte DELTA = (byte)2; // delta
+
+ /**
+ * Constructs an instance of this class.
+ *
+ * @param fh - the file header to use.
+ * @param ih - the info header to use.
+ */
+ public EncodeRLE8(BMPFileHeader fh, BMPInfoHeader ih)
+ {
+ super();
+ fileHeader = fh;
+ infoHeader = ih;
+ offset = BMPFileHeader.SIZE + BMPInfoHeader.SIZE;
+ }
+
+ /**
+ * The image encoder.
+ *
+ * @param o - the image output stream
+ * @param streamMetadata - metadata associated with this stream, or
+ * null
+ * @param image - an IIOImage containing image data.
+ * @param param - image writing parameters, or null
+ * @exception IOException if a write error occurs
+ */
+ public void encode(ImageOutputStream o, IIOMetadata streamMetadata,
+ IIOImage image, ImageWriteParam param) throws IOException
+ {
+ int size;
+ int value;
+ int j;
+ int rowCount;
+ int rowIndex;
+ int lastRowIndex;
+ int[] bitmap;
+ size = (infoHeader.biWidth * infoHeader.biHeight) - 1;
+ rowCount = 1;
+ rowIndex = size - infoHeader.biWidth;
+ lastRowIndex = rowIndex;
+ ByteBuffer buf = ByteBuffer.allocate(size);
+ try
+ {
+ bitmap = new int[infoHeader.biWidth * infoHeader.biHeight];
+ PixelGrabber pg = new PixelGrabber((BufferedImage) image.getRenderedImage(),
+ 0, 0, infoHeader.biWidth,
+ infoHeader.biHeight, bitmap, 0,
+ infoHeader.biWidth);
+ pg.grabPixels();
+
+ for (j = 0; j < size; j++)
+ {
+ value = bitmap[rowIndex];
+ buf.put((byte) (value & 0xFF));
+
+ if (rowCount == infoHeader.biWidth)
+ {
+ rowCount = 1;
+ rowIndex = lastRowIndex - infoHeader.biWidth;
+ lastRowIndex = rowIndex;
+ }
+ else
+ rowCount++;
+ rowIndex++;
+ }
+
+ buf.flip();
+ o.write(uncompress(infoHeader.biWidth, infoHeader.biHeight, buf));
+ }
+ catch (Exception wb)
+ {
+ wb.printStackTrace();
+ }
+ }
+
+
+ /**
+ * Uncompresses the image stored in the buffer.
+ *
+ * @param w - the width of the image
+ * @param h - the height of the image
+ * @param buf - the ByteBuffer containing the pixel values.
+ * @return byte array containing the uncompressed image
+ * @throws IOException if an error is encountered while reading
+ * buffer.
+ */
+ private byte[] uncompress(int w, int h, ByteBuffer buf) throws IOException
+ {
+ byte[] cmd = new byte[2];
+ byte[] data = new byte[w * h];
+ int offIn = 0;
+ int x = 0, y = 0;
+
+ try
+ {
+ while ((x + y * w) < w * h)
+ {
+ try
+ {
+ buf.get(cmd);
+ }
+ catch (BufferUnderflowException e)
+ {
+ throw new IOException("Error reading compressed data.");
+ }
+
+ if (cmd[0] == ESCAPE)
+ {
+ switch (cmd[1])
+ {
+ case EOB:
+ return data;
+ case EOL:
+ x = 0;
+ y++;
+ break;
+ case DELTA:
+ try
+ {
+ buf.get(cmd);
+ }
+ catch (BufferUnderflowException e)
+ {
+ throw new IOException("Error reading compressed data.");
+ }
+
+ int dx = cmd[0] & (0xFF);
+ int dy = cmd[1] & (0xFF);
+ x += dx;
+ y += dy;
+ break;
+
+ default:
+ int length = cmd[1] & (0xFF);
+ int copylength = length;
+
+ length += (length & 1);
+
+ byte[] run = new byte[length];
+
+ try
+ {
+ buf.get(run);
+ }
+ catch (BufferUnderflowException e)
+ {
+ throw new IOException("Error reading compressed data.");
+ }
+
+ System.arraycopy(run, 0, data, (x + w * (h - y - 1)),
+ copylength);
+ x += copylength;
+ break;
+ }
+ }
+ else
+ {
+ int length = cmd[0] & (0xFF);
+ for (int i = 0; i < length; i++)
+ data[(h - y - 1) * w + x++] = cmd[1];
+ }
+ }
+ return data;
+ }
+ catch (ArrayIndexOutOfBoundsException e)
+ {
+ throw new BMPException("Invalid RLE data.");
+ }
+ }
+}