--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/org.eclipse.swt.win32.win32.x86/src/org/eclipse/swt/internal/image/WinBMPFileFormat.d	Mon Mar 02 14:44:16 2009 +0100
@@ -0,0 +1,702 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2008 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *     IBM Corporation - initial API and implementation
+ * Port to the D programming language:
+ *     Frank Benoit <benoit@tionex.de>
+ *******************************************************************************/
+module org.eclipse.swt.internal.image.WinBMPFileFormat;
+
+import org.eclipse.swt.internal.image.FileFormat;
+import org.eclipse.swt.graphics.PaletteData;
+import org.eclipse.swt.graphics.Point;
+import org.eclipse.swt.graphics.RGB;
+import java.io.ByteArrayOutputStream;
+import org.eclipse.swt.SWT;
+import java.lang.all;
+
+import tango.core.Exception;
+
+final class WinBMPFileFormat : FileFormat {
+
+    static final int BMPFileHeaderSize = 14;
+    static final int BMPHeaderFixedSize = 40;
+    int importantColors;
+    Point pelsPerMeter;
+
+public this(){
+    pelsPerMeter = new Point(0, 0);
+}
+
+/**
+ * Compress numBytes bytes of image data from src, storing in dest
+ * (starting at 0), using the technique specified by comp.
+ * If last is true, this indicates the last line of the image.
+ * Answer the size of the compressed data.
+ */
+int compress(int comp, byte[] src, int srcOffset, int numBytes, byte[] dest, bool last) {
+    if (comp is 1) { // BMP_RLE8_COMPRESSION
+        return compressRLE8Data(src, srcOffset, numBytes, dest, last);
+    }
+    if (comp is 2) { // BMP_RLE4_COMPRESSION
+        return compressRLE4Data(src, srcOffset, numBytes, dest, last);
+    }
+    SWT.error(SWT.ERROR_INVALID_IMAGE);
+    return 0;
+}
+int compressRLE4Data(byte[] src, int srcOffset, int numBytes, byte[] dest, bool last) {
+    int sp = srcOffset, end = srcOffset + numBytes, dp = 0;
+    int size = 0, left, i, n;
+    byte theByte;
+    while (sp < end) {
+        /* find two consecutive bytes that are the same in the next 128 */
+        left = end - sp - 1;
+        if (left > 127)
+            left = 127;
+        for (n = 0; n < left; n++) {
+            if (src[sp + n] is src[sp + n + 1])
+                break;
+        }
+        /* if there is only one more byte in the scan line, include it */
+        if (n < 127 && n is left)
+            n++;
+        /* store the intervening data */
+        switch (n) {
+            case 0:
+                break;
+            case 1: /* handled separately because 0,2 is a command */
+                dest[dp] = 2; dp++; /* 1 byte is 2 pixels */
+                dest[dp] = src[sp];
+                dp++; sp++;
+                size += 2;
+                break;
+            default:
+                dest[dp] = 0; dp++;
+                dest[dp] = cast(byte)(n + n); dp++; /* n bytes = n*2 pixels */
+                for (i = n; i > 0; i--) {
+                    dest[dp] = src[sp];
+                    dp++; sp++;
+                }
+                size += 2 + n;
+                if ((n & 1) !is 0) { /* pad to word */
+                    dest[dp] = 0;
+                    dp++;
+                    size++;
+                }
+                break;
+        }
+        /* find the length of the next run (up to 127) and store it */
+        left = end - sp;
+        if (left > 0) {
+            if (left > 127)
+                left = 127;
+            theByte = src[sp];
+            for (n = 1; n < left; n++) {
+                if (src[sp + n] !is theByte)
+                    break;
+            }
+            dest[dp] = cast(byte)(n + n); dp++; /* n bytes = n*2 pixels */
+            dest[dp] = theByte; dp++;
+            sp += n;
+            size += 2;
+        }
+    }
+
+    /* store the end of line or end of bitmap codes */
+    dest[dp] = 0; dp++;
+    if (last) {
+        dest[dp] = 1; dp++;
+    } else {
+        dest[dp] = 0; dp++;
+    }
+    size += 2;
+
+    return size;
+}
+int compressRLE8Data(byte[] src, int srcOffset, int numBytes, byte[] dest, bool last) {
+    int sp = srcOffset, end = srcOffset + numBytes, dp = 0;
+    int size = 0, left, i, n;
+    byte theByte;
+    while (sp < end) {
+        /* find two consecutive bytes that are the same in the next 256 */
+        left = end - sp - 1;
+        if (left > 254)
+            left = 254;
+        for (n = 0; n < left; n++) {
+            if (src[sp + n] is src[sp + n + 1])
+                break;
+        }
+        /* if there is only one more byte in the scan line, include it */
+        if (n is left)
+            n++;
+        /* store the intervening data */
+        switch (n) {
+            case 0:
+                break;
+            case 2: /* handled separately because 0,2 is a command */
+                dest[dp] = 1; dp++;
+                dest[dp] = src[sp];
+                dp++; sp++;
+                size += 2;
+                /* don't break, fall through */
+            case 1: /* handled separately because 0,1 is a command */
+                dest[dp] = 1; dp++;
+                dest[dp] = src[sp];
+                dp++; sp++;
+                size += 2;
+                break;
+            default:
+                dest[dp] = 0; dp++;
+                dest[dp] = cast(byte)n; dp++;
+                for (i = n; i > 0; i--) {
+                    dest[dp] = src[sp];
+                    dp++; sp++;
+                }
+                size += 2 + n;
+                if ((n & 1) !is 0) { /* pad to word */
+                    dest[dp] = 0;
+                    dp++;
+                    size++;
+                }
+                break;
+        }
+        /* find the length of the next run (up to 255) and store it */
+        left = end - sp;
+        if (left > 0) {
+            if (left > 255)
+                left = 255;
+            theByte = src[sp];
+            for (n = 1; n < left; n++) {
+                if (src[sp + n] !is theByte)
+                    break;
+            }
+            dest[dp] = cast(byte)n; dp++;
+            dest[dp] = theByte; dp++;
+            sp += n;
+            size += 2;
+        }
+    }
+
+    /* store the end of line or end of bitmap codes */
+    dest[dp] = 0; dp++;
+    if (last) {
+        dest[dp] = 1; dp++;
+    } else {
+        dest[dp] = 0; dp++;
+    }
+    size += 2;
+
+    return size;
+}
+void decompressData(byte[] src, byte[] dest, int stride, int cmp) {
+    if (cmp is 1) { // BMP_RLE8_COMPRESSION
+        if (decompressRLE8Data(src, src.length, stride, dest, dest.length) <= 0)
+            SWT.error(SWT.ERROR_INVALID_IMAGE);
+        return;
+    }
+    if (cmp is 2) { // BMP_RLE4_COMPRESSION
+        if (decompressRLE4Data(src, src.length, stride, dest, dest.length) <= 0)
+            SWT.error(SWT.ERROR_INVALID_IMAGE);
+        return;
+    }
+    SWT.error(SWT.ERROR_INVALID_IMAGE);
+}
+int decompressRLE4Data(byte[] src, int numBytes, int stride, byte[] dest, int destSize) {
+    int sp = 0;
+    int se = numBytes;
+    int dp = 0;
+    int de = destSize;
+    int x = 0, y = 0;
+    while (sp < se) {
+        int len = src[sp] & 0xFF;
+        sp++;
+        if (len is 0) {
+            len = src[sp] & 0xFF;
+            sp++;
+            switch (len) {
+                case 0: /* end of line */
+                    y++;
+                    x = 0;
+                    dp = y * stride;
+                    if (dp > de)
+                        return -1;
+                    break;
+                case 1: /* end of bitmap */
+                    return 1;
+                case 2: /* delta */
+                    x += src[sp] & 0xFF;
+                    sp++;
+                    y += src[sp] & 0xFF;
+                    sp++;
+                    dp = y * stride + x / 2;
+                    if (dp > de)
+                        return -1;
+                    break;
+                default: /* absolute mode run */
+                    if ((len & 1) !is 0) /* odd run lengths not currently supported */
+                        return -1;
+                    x += len;
+                    len = len / 2;
+                    if (len > (se - sp))
+                        return -1;
+                    if (len > (de - dp))
+                        return -1;
+                    for (int i = 0; i < len; i++) {
+                        dest[dp] = src[sp];
+                        dp++;
+                        sp++;
+                    }
+                    if ((sp & 1) !is 0)
+                        sp++; /* word align sp? */
+                    break;
+            }
+        } else {
+            if ((len & 1) !is 0)
+                return -1;
+            x += len;
+            len = len / 2;
+            byte theByte = src[sp];
+            sp++;
+            if (len > (de - dp))
+                return -1;
+            for (int i = 0; i < len; i++) {
+                dest[dp] = theByte;
+                dp++;
+            }
+        }
+    }
+    return 1;
+}
+int decompressRLE8Data(byte[] src, int numBytes, int stride, byte[] dest, int destSize) {
+    int sp = 0;
+    int se = numBytes;
+    int dp = 0;
+    int de = destSize;
+    int x = 0, y = 0;
+    while (sp < se) {
+        int len = src[sp] & 0xFF;
+        sp++;
+        if (len is 0) {
+            len = src[sp] & 0xFF;
+            sp++;
+            switch (len) {
+                case 0: /* end of line */
+                    y++;
+                    x = 0;
+                    dp = y * stride;
+                    if (dp > de)
+                        return -1;
+                    break;
+                case 1: /* end of bitmap */
+                    return 1;
+                case 2: /* delta */
+                    x += src[sp] & 0xFF;
+                    sp++;
+                    y += src[sp] & 0xFF;
+                    sp++;
+                    dp = y * stride + x;
+                    if (dp > de)
+                        return -1;
+                    break;
+                default: /* absolute mode run */
+                    if (len > (se - sp))
+                        return -1;
+                    if (len > (de - dp))
+                        return -1;
+                    for (int i = 0; i < len; i++) {
+                        dest[dp] = src[sp];
+                        dp++;
+                        sp++;
+                    }
+                    if ((sp & 1) !is 0)
+                        sp++; /* word align sp? */
+                    x += len;
+                    break;
+            }
+        } else {
+            byte theByte = src[sp];
+            sp++;
+            if (len > (de - dp))
+                return -1;
+            for (int i = 0; i < len; i++) {
+                dest[dp] = theByte;
+                dp++;
+            }
+            x += len;
+        }
+    }
+    return 1;
+}
+override bool isFileFormat(LEDataInputStream stream) {
+    try {
+        byte[] header = new byte[18];
+        stream.read(header);
+        stream.unread(header);
+        int infoHeaderSize = (header[14] & 0xFF) | ((header[15] & 0xFF) << 8) | ((header[16] & 0xFF) << 16) | ((header[17] & 0xFF) << 24);
+        return header[0] is 0x42 && header[1] is 0x4D && infoHeaderSize >= BMPHeaderFixedSize;
+    } catch (Exception e) {
+        return false;
+    }
+}
+byte[] loadData(byte[] infoHeader) {
+    int width = (infoHeader[4] & 0xFF) | ((infoHeader[5] & 0xFF) << 8) | ((infoHeader[6] & 0xFF) << 16) | ((infoHeader[7] & 0xFF) << 24);
+    int height = (infoHeader[8] & 0xFF) | ((infoHeader[9] & 0xFF) << 8) | ((infoHeader[10] & 0xFF) << 16) | ((infoHeader[11] & 0xFF) << 24);
+    int bitCount = (infoHeader[14] & 0xFF) | ((infoHeader[15] & 0xFF) << 8);
+    int stride = (width * bitCount + 7) / 8;
+    stride = (stride + 3) / 4 * 4; // Round up to 4 byte multiple
+    byte[] data = loadData(infoHeader, stride);
+    flipScanLines(data, stride, height);
+    return data;
+}
+byte[] loadData(byte[] infoHeader, int stride) {
+    int height = (infoHeader[8] & 0xFF) | ((infoHeader[9] & 0xFF) << 8) | ((infoHeader[10] & 0xFF) << 16) | ((infoHeader[11] & 0xFF) << 24);
+    if (height < 0) height = -height;
+    int dataSize = height * stride;
+    byte[] data = new byte[dataSize];
+    int cmp = (infoHeader[16] & 0xFF) | ((infoHeader[17] & 0xFF) << 8) | ((infoHeader[18] & 0xFF) << 16) | ((infoHeader[19] & 0xFF) << 24);
+    if (cmp is 0 || cmp is 3) { // BMP_NO_COMPRESSION
+        try {
+            if (inputStream.read(data) !is dataSize)
+                SWT.error(SWT.ERROR_INVALID_IMAGE);
+        } catch (IOException e) {
+            SWT.error(SWT.ERROR_IO, e);
+        }
+    } else {
+        int compressedSize = (infoHeader[20] & 0xFF) | ((infoHeader[21] & 0xFF) << 8) | ((infoHeader[22] & 0xFF) << 16) | ((infoHeader[23] & 0xFF) << 24);
+        byte[] compressed = new byte[compressedSize];
+        try {
+            if (inputStream.read(compressed) !is compressedSize)
+                SWT.error(SWT.ERROR_INVALID_IMAGE);
+        } catch (IOException e) {
+            SWT.error(SWT.ERROR_IO, e);
+        }
+        decompressData(compressed, data, stride, cmp);
+    }
+    return data;
+}
+int[] loadFileHeader() {
+    int[] header = new int[5];
+    try {
+        header[0] = inputStream.readShort();
+        header[1] = inputStream.readInt();
+        header[2] = inputStream.readShort();
+        header[3] = inputStream.readShort();
+        header[4] = inputStream.readInt();
+    } catch (IOException e) {
+        SWT.error(SWT.ERROR_IO, e);
+    }
+    if (header[0] !is 0x4D42)
+        SWT.error(SWT.ERROR_INVALID_IMAGE);
+    return header;
+}
+override ImageData[] loadFromByteStream() {
+    int[] fileHeader = loadFileHeader();
+    byte[] infoHeader = new byte[BMPHeaderFixedSize];
+    try {
+        inputStream.read(infoHeader);
+    } catch (Exception e) {
+        SWT.error(SWT.ERROR_IO, e);
+    }
+    int width = (infoHeader[4] & 0xFF) | ((infoHeader[5] & 0xFF) << 8) | ((infoHeader[6] & 0xFF) << 16) | ((infoHeader[7] & 0xFF) << 24);
+    int height = (infoHeader[8] & 0xFF) | ((infoHeader[9] & 0xFF) << 8) | ((infoHeader[10] & 0xFF) << 16) | ((infoHeader[11] & 0xFF) << 24);
+    if (height < 0) height = -height;
+    int bitCount = (infoHeader[14] & 0xFF) | ((infoHeader[15] & 0xFF) << 8);
+    this.compression = (infoHeader[16] & 0xFF) | ((infoHeader[17] & 0xFF) << 8) | ((infoHeader[18] & 0xFF) << 16) | ((infoHeader[19] & 0xFF) << 24);
+    PaletteData palette = loadPalette(infoHeader);
+    if (inputStream.getPosition() < fileHeader[4]) {
+        // Seek to the specified offset
+        try {
+            inputStream.skip(fileHeader[4] - inputStream.getPosition());
+        } catch (IOException e) {
+            SWT.error(SWT.ERROR_IO, e);
+        }
+    }
+    byte[] data = loadData(infoHeader);
+    this.importantColors = (infoHeader[36] & 0xFF) | ((infoHeader[37] & 0xFF) << 8) | ((infoHeader[38] & 0xFF) << 16) | ((infoHeader[39] & 0xFF) << 24);
+    int xPelsPerMeter = (infoHeader[24] & 0xFF) | ((infoHeader[25] & 0xFF) << 8) | ((infoHeader[26] & 0xFF) << 16) | ((infoHeader[27] & 0xFF) << 24);
+    int yPelsPerMeter = (infoHeader[28] & 0xFF) | ((infoHeader[29] & 0xFF) << 8) | ((infoHeader[30] & 0xFF) << 16) | ((infoHeader[31] & 0xFF) << 24);
+    this.pelsPerMeter = new Point(xPelsPerMeter, yPelsPerMeter);
+    int type = (this.compression is 1 /*BMP_RLE8_COMPRESSION*/) || (this.compression is 2 /*BMP_RLE4_COMPRESSION*/) ? SWT.IMAGE_BMP_RLE : SWT.IMAGE_BMP;
+    return [
+        ImageData.internal_new(
+            width,
+            height,
+            bitCount,
+            palette,
+            4,
+            data,
+            0,
+            null,
+            null,
+            -1,
+            -1,
+            type,
+            0,
+            0,
+            0,
+            0)
+    ];
+}
+PaletteData loadPalette(byte[] infoHeader) {
+    int depth = (infoHeader[14] & 0xFF) | ((infoHeader[15] & 0xFF) << 8);
+    if (depth <= 8) {
+        int numColors = (infoHeader[32] & 0xFF) | ((infoHeader[33] & 0xFF) << 8) | ((infoHeader[34] & 0xFF) << 16) | ((infoHeader[35] & 0xFF) << 24);
+        if (numColors is 0) {
+            numColors = 1 << depth;
+        } else {
+            if (numColors > 256)
+                numColors = 256;
+        }
+        byte[] buf = new byte[numColors * 4];
+        try {
+            if (inputStream.read(buf) !is buf.length)
+                SWT.error(SWT.ERROR_INVALID_IMAGE);
+        } catch (IOException e) {
+            SWT.error(SWT.ERROR_IO, e);
+        }
+        return paletteFromBytes(buf, numColors);
+    }
+    if (depth is 16) {
+        if (this.compression is 3) {
+            try {
+                return new PaletteData(inputStream.readInt(), inputStream.readInt(), inputStream.readInt());
+            } catch (IOException e) {
+                SWT.error(SWT.ERROR_IO, e);
+            }
+        }
+        return new PaletteData(0x7C00, 0x3E0, 0x1F);
+    }
+    if (depth is 24) return new PaletteData(0xFF, 0xFF00, 0xFF0000);
+    if (this.compression is 3) {
+        try {
+            return new PaletteData(inputStream.readInt(), inputStream.readInt(), inputStream.readInt());
+        } catch (IOException e) {
+            SWT.error(SWT.ERROR_IO, e);
+        }
+    }
+    return new PaletteData(0xFF00, 0xFF0000, 0xFF000000);
+}
+PaletteData paletteFromBytes(byte[] bytes, int numColors) {
+    int bytesOffset = 0;
+    RGB[] colors = new RGB[numColors];
+    for (int i = 0; i < numColors; i++) {
+        colors[i] = new RGB(bytes[bytesOffset + 2] & 0xFF,
+            bytes[bytesOffset + 1] & 0xFF,
+            bytes[bytesOffset] & 0xFF);
+        bytesOffset += 4;
+    }
+    return new PaletteData(colors);
+}
+/**
+ * Answer a byte array containing the BMP representation of
+ * the given device independent palette.
+ */
+static byte[] paletteToBytes(PaletteData pal) {
+    int n = pal.colors is null ? 0 : (pal.colors.length < 256 ? pal.colors.length : 256);
+    byte[] bytes = new byte[n * 4];
+    int offset = 0;
+    for (int i = 0; i < n; i++) {
+        RGB col = pal.colors[i];
+        bytes[offset] = cast(byte)col.blue;
+        bytes[offset + 1] = cast(byte)col.green;
+        bytes[offset + 2] = cast(byte)col.red;
+        offset += 4;
+    }
+    return bytes;
+}
+/**
+ * Unload the given image's data into the given byte stream
+ * using the given compression strategy.
+ * Answer the number of bytes written.
+ */
+int unloadData(ImageData image, OutputStream ostr, int comp) {
+    int totalSize = 0;
+    try {
+        if (comp is 0)
+            return unloadDataNoCompression(image, ostr);
+        int bpl = (image.width * image.depth + 7) / 8;
+        int bmpBpl = (bpl + 3) / 4 * 4; // BMP pads scanlines to multiples of 4 bytes
+        int imageBpl = image.bytesPerLine;
+        // Compression can actually take twice as much space, in worst case
+        byte[] buf = new byte[bmpBpl * 2];
+        int srcOffset = imageBpl * (image.height - 1); // Start at last line
+        byte[] data = image.data;
+        totalSize = 0;
+        byte[] buf2 = new byte[32768];
+        int buf2Offset = 0;
+        for (int y = image.height - 1; y >= 0; y--) {
+            int lineSize = compress(comp, data, srcOffset, bpl, buf, y is 0);
+            if (buf2Offset + lineSize > buf2.length) {
+                ostr.write(buf2, 0, buf2Offset);
+                buf2Offset = 0;
+            }
+            System.arraycopy(buf, 0, buf2, buf2Offset, lineSize);
+            buf2Offset += lineSize;
+            totalSize += lineSize;
+            srcOffset -= imageBpl;
+        }
+        if (buf2Offset > 0)
+            ostr.write(buf2, 0, buf2Offset);
+    } catch (IOException e) {
+        SWT.error(SWT.ERROR_IO, e);
+    }
+    return totalSize;
+}
+/**
+ * Prepare the given image's data for unloading into a byte stream
+ * using no compression strategy.
+ * Answer the number of bytes written.
+ */
+int unloadDataNoCompression(ImageData image, OutputStream ostr) {
+    int bmpBpl = 0;
+    try {
+        int bpl = (image.width * image.depth + 7) / 8;
+        bmpBpl = (bpl + 3) / 4 * 4; // BMP pads scanlines to multiples of 4 bytes
+        int linesPerBuf = 32678 / bmpBpl;
+        byte[] buf = new byte[linesPerBuf * bmpBpl];
+        byte[] data = image.data;
+        int imageBpl = image.bytesPerLine;
+        int dataIndex = imageBpl * (image.height - 1); // Start at last line
+        if (image.depth is 16) {
+            for (int y = 0; y < image.height; y += linesPerBuf) {
+                int count = image.height - y;
+                if (linesPerBuf < count) count = linesPerBuf;
+                int bufOffset = 0;
+                for (int i = 0; i < count; i++) {
+                    for (int wIndex = 0; wIndex < bpl; wIndex += 2) {
+                        buf[bufOffset + wIndex + 1] = data[dataIndex + wIndex + 1];
+                        buf[bufOffset + wIndex] = data[dataIndex + wIndex];
+                    }
+                    bufOffset += bmpBpl;
+                    dataIndex -= imageBpl;
+                }
+                ostr.write(buf, 0, bufOffset);
+            }
+        } else {
+            for (int y = 0; y < image.height; y += linesPerBuf) {
+                int tmp = image.height - y;
+                int count = tmp < linesPerBuf ? tmp : linesPerBuf;
+                int bufOffset = 0;
+                for (int i = 0; i < count; i++) {
+                    System.arraycopy(data, dataIndex, buf, bufOffset, bpl);
+                    bufOffset += bmpBpl;
+                    dataIndex -= imageBpl;
+                }
+                ostr.write(buf, 0, bufOffset);
+            }
+        }
+    } catch (IOException e) {
+        SWT.error(SWT.ERROR_IO, e);
+    }
+    return bmpBpl * image.height;
+}
+/**
+ * Unload a DeviceIndependentImage using Windows .BMP format into the given
+ * byte stream.
+ */
+override void unloadIntoByteStream(ImageLoader loader) {
+    ImageData image = loader.data[0];
+    byte[] rgbs;
+    int numCols;
+    if (!((image.depth is 1) || (image.depth is 4) || (image.depth is 8) ||
+          (image.depth is 16) || (image.depth is 24) || (image.depth is 32)))
+            SWT.error(SWT.ERROR_UNSUPPORTED_DEPTH);
+    int comp = this.compression;
+    if (!((comp is 0) || ((comp is 1) && (image.depth is 8)) ||
+          ((comp is 2) && (image.depth is 4))))
+            SWT.error(SWT.ERROR_INVALID_IMAGE);
+    PaletteData pal = image.palette;
+    if ((image.depth is 16) || (image.depth is 24) || (image.depth is 32)) {
+        if (!pal.isDirect)
+            SWT.error(SWT.ERROR_INVALID_IMAGE);
+        numCols = 0;
+        rgbs = null;
+    } else {
+        if (pal.isDirect)
+            SWT.error(SWT.ERROR_INVALID_IMAGE);
+        numCols = pal.colors.length;
+        rgbs = paletteToBytes(pal);
+    }
+    // Fill in file header, except for bfsize, which is done later.
+    int headersSize = BMPFileHeaderSize + BMPHeaderFixedSize;
+    int[] fileHeader = new int[5];
+    fileHeader[0] = 0x4D42; // Signature
+    fileHeader[1] = 0; // File size - filled in later
+    fileHeader[2] = 0; // Reserved 1
+    fileHeader[3] = 0; // Reserved 2
+    fileHeader[4] = headersSize; // Offset to data
+    if (rgbs !is null) {
+        fileHeader[4] += rgbs.length;
+    }
+
+    // Prepare data. This is done first so we don't have to try to rewind
+    // the stream and fill in the details later.
+    ByteArrayOutputStream ostr = new ByteArrayOutputStream();
+    unloadData(image, ostr, comp);
+    byte[] data = ostr.toByteArray();
+
+    // Calculate file size
+    fileHeader[1] = fileHeader[4] + data.length;
+
+    // Write the headers
+    try {
+        outputStream.writeShort(fileHeader[0]);
+        outputStream.writeInt(fileHeader[1]);
+        outputStream.writeShort(fileHeader[2]);
+        outputStream.writeShort(fileHeader[3]);
+        outputStream.writeInt(fileHeader[4]);
+    } catch (IOException e) {
+        SWT.error(SWT.ERROR_IO, e);
+    }
+    try {
+        outputStream.writeInt(BMPHeaderFixedSize);
+        outputStream.writeInt(image.width);
+        outputStream.writeInt(image.height);
+        outputStream.writeShort(1);
+        outputStream.writeShort(cast(short)image.depth);
+        outputStream.writeInt(comp);
+        outputStream.writeInt(data.length);
+        outputStream.writeInt(pelsPerMeter.x);
+        outputStream.writeInt(pelsPerMeter.y);
+        outputStream.writeInt(numCols);
+        outputStream.writeInt(importantColors);
+    } catch (IOException e) {
+        SWT.error(SWT.ERROR_IO, e);
+    }
+
+    // Unload palette
+    if (numCols > 0) {
+        try {
+            outputStream.write(rgbs);
+        } catch (IOException e) {
+            SWT.error(SWT.ERROR_IO, e);
+        }
+    }
+
+    // Unload the data
+    try {
+        outputStream.write(data);
+    } catch (IOException e) {
+        SWT.error(SWT.ERROR_IO, e);
+    }
+}
+void flipScanLines(byte[] data, int stride, int height) {
+    int i1 = 0;
+    int i2 = (height - 1) * stride;
+    for (int i = 0; i < height / 2; i++) {
+        for (int index = 0; index < stride; index++) {
+            byte b = data[index + i1];
+            data[index + i1] = data[index + i2];
+            data[index + i2] = b;
+        }
+        i1 += stride;
+        i2 -= stride;
+    }
+}
+
+}