/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.sanselan.formats.bmp;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.io.PrintWriter;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.Map;
import org.apache.sanselan.FormatCompliance;
import org.apache.sanselan.ImageFormat;
import org.apache.sanselan.ImageInfo;
import org.apache.sanselan.ImageParser;
import org.apache.sanselan.ImageReadException;
import org.apache.sanselan.ImageWriteException;
import org.apache.sanselan.common.BinaryOutputStream;
import org.apache.sanselan.common.IImageMetadata;
import org.apache.sanselan.common.byteSources.ByteSource;
import org.apache.sanselan.formats.bmp.pixelparsers.PixelParser;
import org.apache.sanselan.formats.bmp.pixelparsers.PixelParserBitFields;
import org.apache.sanselan.formats.bmp.pixelparsers.PixelParserRgb;
import org.apache.sanselan.formats.bmp.pixelparsers.PixelParserRle;
import org.apache.sanselan.formats.bmp.writers.BMPWriter;
import org.apache.sanselan.formats.bmp.writers.BMPWriterPalette;
import org.apache.sanselan.formats.bmp.writers.BMPWriterRGB;
import org.apache.sanselan.palette.PaletteFactory;
import org.apache.sanselan.palette.SimplePalette;
import org.apache.sanselan.util.Debug;
import org.apache.sanselan.util.ParamMap;
import com.google.code.appengine.awt.Dimension;
import com.google.code.appengine.awt.image.BufferedImage;
public class BmpImageParser extends ImageParser
{
public BmpImageParser()
{
super.setByteOrder(BYTE_ORDER_INTEL);
}
public String getName()
{
return "Bmp-Custom";
}
public String getDefaultExtension()
{
return DEFAULT_EXTENSION;
}
private static final String DEFAULT_EXTENSION = ".bmp";
private static final String ACCEPTED_EXTENSIONS[] = { DEFAULT_EXTENSION, };
protected String[] getAcceptedExtensions()
{
return ACCEPTED_EXTENSIONS;
}
protected ImageFormat[] getAcceptedTypes()
{
return new ImageFormat[] { ImageFormat.IMAGE_FORMAT_BMP, //
};
}
private static final byte BMP_HEADER_SIGNATURE[] = { 0x42, 0x4d, };
private BmpHeaderInfo readBmpHeaderInfo(InputStream is,
FormatCompliance formatCompliance, boolean verbose)
throws ImageReadException, IOException
{
byte identifier1 = readByte("Identifier1", is, "Not a Valid BMP File");
byte identifier2 = readByte("Identifier2", is, "Not a Valid BMP File");
if (formatCompliance != null)
{
formatCompliance.compare_bytes("Signature", BMP_HEADER_SIGNATURE,
new byte[] { identifier1, identifier2, });
}
int fileSize = read4Bytes("File Size", is, "Not a Valid BMP File");
int reserved = read4Bytes("Reserved", is, "Not a Valid BMP File");
int bitmapDataOffset = read4Bytes("Bitmap Data Offset", is,
"Not a Valid BMP File");
int bitmapHeaderSize = read4Bytes("Bitmap Header Size", is,
"Not a Valid BMP File");
int width = read4Bytes("Width", is, "Not a Valid BMP File");
int height = read4Bytes("Height", is, "Not a Valid BMP File");
int planes = read2Bytes("Planes", is, "Not a Valid BMP File");
int bitsPerPixel = read2Bytes("Bits Per Pixel", is,
"Not a Valid BMP File");
int compression = read4Bytes("Compression", is, "Not a Valid BMP File");
int bitmapDataSize = read4Bytes("Bitmap Data Size", is,
"Not a Valid BMP File");
int hResolution = read4Bytes("HResolution", is, "Not a Valid BMP File");
int vResolution = read4Bytes("VResolution", is, "Not a Valid BMP File");
int colorsUsed = read4Bytes("ColorsUsed", is, "Not a Valid BMP File");
int colorsImportant = read4Bytes("ColorsImportant", is,
"Not a Valid BMP File");
if (verbose)
{
this.debugNumber("identifier1", identifier1, 1);
this.debugNumber("identifier2", identifier2, 1);
this.debugNumber("fileSize", fileSize, 4);
this.debugNumber("reserved", reserved, 4);
this.debugNumber("bitmapDataOffset", bitmapDataOffset, 4);
this.debugNumber("bitmapHeaderSize", bitmapHeaderSize, 4);
this.debugNumber("width", width, 4);
this.debugNumber("height", height, 4);
this.debugNumber("planes", planes, 2);
this.debugNumber("bitsPerPixel", bitsPerPixel, 2);
this.debugNumber("compression", compression, 4);
this.debugNumber("bitmapDataSize", bitmapDataSize, 4);
this.debugNumber("hResolution", hResolution, 4);
this.debugNumber("vResolution", vResolution, 4);
this.debugNumber("colorsUsed", colorsUsed, 4);
this.debugNumber("colorsImportant", colorsImportant, 4);
}
BmpHeaderInfo result = new BmpHeaderInfo(identifier1, identifier2,
fileSize, reserved, bitmapDataOffset, bitmapHeaderSize, width,
height, planes, bitsPerPixel, compression, bitmapDataSize,
hResolution, vResolution, colorsUsed, colorsImportant);
return result;
}
private static final int BI_RGB = 0;
private static final int BI_RLE4 = 2;
private static final int BI_RLE8 = 1;
private static final int BI_BITFIELDS = 3;
private byte[] getRLEBytes(InputStream is, int RLESamplesPerByte)
throws ImageReadException, IOException
{
ByteArrayOutputStream baos = new ByteArrayOutputStream();
// this.setDebug(true);
boolean done = false;
while (!done)
{
int a = 0xff & this.readByte("RLE a", is, "BMP: Bad RLE");
baos.write(a);
int b = 0xff & this.readByte("RLE b", is, "BMP: Bad RLE");
baos.write(b);
if (a == 0)
{
switch (b)
{
case 0: // EOL
break;
case 1: // EOF
// System.out.println("xXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX"
// );
done = true;
break;
case 2: {
// System.out.println("xXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX"
// );
int c = 0xff & this.readByte("RLE c", is, "BMP: Bad RLE");
baos.write(c);
int d = 0xff & this.readByte("RLE d", is, "BMP: Bad RLE");
baos.write(d);
}
break;
default: {
int size = b / RLESamplesPerByte;
if ((b % RLESamplesPerByte) > 0)
size++;
if ((size % 2) != 0)
size++;
// System.out.println("b: " + b);
// System.out.println("size: " + size);
// System.out.println("RLESamplesPerByte: " +
// RLESamplesPerByte);
// System.out.println("xXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX"
// );
byte bytes[] = this.readByteArray("bytes", size, is,
"RLE: Absolute Mode");
baos.write(bytes);
}
break;
}
}
}
return baos.toByteArray();
}
private ImageContents readImageContents(InputStream is,
FormatCompliance formatCompliance, boolean verbose)
throws ImageReadException, IOException
{
BmpHeaderInfo bhi = readBmpHeaderInfo(is, formatCompliance, verbose);
int colorTableSize = bhi.colorsUsed;
if (colorTableSize == 0)
colorTableSize = (1 << bhi.bitsPerPixel);
if (verbose)
{
this.debugNumber("ColorsUsed", bhi.colorsUsed, 4);
this.debugNumber("BitsPerPixel", bhi.bitsPerPixel, 4);
this.debugNumber("ColorTableSize", colorTableSize, 4);
this.debugNumber("bhi.colorsUsed", bhi.colorsUsed, 4);
this.debugNumber("Compression", bhi.compression, 4);
}
int paletteLength;
int rleSamplesPerByte = 0;
boolean rle = false;
switch (bhi.compression)
{
case BI_RGB:
if (verbose)
System.out.println("Compression: BI_RGB");
if (bhi.bitsPerPixel <= 8)
paletteLength = 4 * colorTableSize;
else
paletteLength = 0;
// BytesPerPaletteEntry = 0;
// System.out.println("Compression: BI_RGBx2: " + bhi.BitsPerPixel);
// System.out.println("Compression: BI_RGBx2: " + (bhi.BitsPerPixel
// <= 16));
break;
case BI_RLE4:
if (verbose)
System.out.println("Compression: BI_RLE4");
paletteLength = 4 * colorTableSize;
rleSamplesPerByte = 2;
// ExtraBitsPerPixel = 4;
rle = true;
// // BytesPerPixel = 2;
// // BytesPerPaletteEntry = 0;
break;
//
case BI_RLE8:
if (verbose)
System.out.println("Compression: BI_RLE8");
paletteLength = 4 * colorTableSize;
rleSamplesPerByte = 1;
// ExtraBitsPerPixel = 8;
rle = true;
// BytesPerPixel = 2;
// BytesPerPaletteEntry = 0;
break;
//
case BI_BITFIELDS:
if (verbose)
System.out.println("Compression: BI_BITFIELDS");
paletteLength = 3 * 4; // TODO: is this right? are the masks always
// LONGs?
// BytesPerPixel = 2;
// BytesPerPaletteEntry = 4;
break;
default:
throw new ImageReadException("BMP: Unknown Compression: "
+ bhi.compression);
}
byte colorTable[] = null;
if (paletteLength > 0)
colorTable = this.readByteArray("ColorTable", paletteLength, is,
"Not a Valid BMP File");
if (verbose)
{
this.debugNumber("paletteLength", paletteLength, 4);
System.out.println("ColorTable: "
+ ((colorTable == null) ? "null" : "" + colorTable.length));
}
int pixelCount = bhi.width * bhi.height;
int imageLineLength = ((((bhi.bitsPerPixel) * bhi.width) + 7) / 8);
if (verbose)
{
// this.debugNumber("Total BitsPerPixel",
// (ExtraBitsPerPixel + bhi.BitsPerPixel), 4);
// this.debugNumber("Total Bit Per Line",
// ((ExtraBitsPerPixel + bhi.BitsPerPixel) * bhi.Width), 4);
// this.debugNumber("ExtraBitsPerPixel", ExtraBitsPerPixel, 4);
this.debugNumber("bhi.Width", bhi.width, 4);
this.debugNumber("bhi.Height", bhi.height, 4);
this.debugNumber("ImageLineLength", imageLineLength, 4);
// this.debugNumber("imageDataSize", imageDataSize, 4);
this.debugNumber("PixelCount", pixelCount, 4);
}
// int ImageLineLength = BytesPerPixel * bhi.Width;
while ((imageLineLength % 4) != 0)
imageLineLength++;
final int headerSize = BITMAP_FILE_HEADER_SIZE
+ BITMAP_INFO_HEADER_SIZE;
int expectedDataOffset = headerSize + paletteLength;
if (verbose)
{
this.debugNumber("bhi.BitmapDataOffset", bhi.bitmapDataOffset, 4);
this.debugNumber("expectedDataOffset", expectedDataOffset, 4);
}
int extraBytes = bhi.bitmapDataOffset - expectedDataOffset;
if (extraBytes < 0)
throw new ImageReadException("BMP has invalid image data offset: "
+ bhi.bitmapDataOffset + " (expected: "
+ expectedDataOffset + ", paletteLength: " + paletteLength
+ ", headerSize: " + headerSize + ")");
else if (extraBytes > 0)
this.readByteArray("BitmapDataOffset", extraBytes, is,
"Not a Valid BMP File");
int imageDataSize = bhi.height * imageLineLength;
if (verbose)
this.debugNumber("imageDataSize", imageDataSize, 4);
byte imageData[];
if (rle)
imageData = getRLEBytes(is, rleSamplesPerByte);
else
imageData = this.readByteArray("ImageData", imageDataSize, is,
"Not a Valid BMP File");
if (verbose)
this.debugNumber("ImageData.length", imageData.length, 4);
PixelParser pixelParser;
switch (bhi.compression)
{
case BI_RLE4:
case BI_RLE8:
pixelParser = new PixelParserRle(bhi, colorTable, imageData);
break;
case BI_RGB:
pixelParser = new PixelParserRgb(bhi, colorTable, imageData);
break;
case BI_BITFIELDS:
pixelParser = new PixelParserBitFields(bhi, colorTable, imageData);
break;
default:
throw new ImageReadException("BMP: Unknown Compression: "
+ bhi.compression);
}
return new ImageContents(bhi, colorTable, imageData, pixelParser);
}
private BmpHeaderInfo readBmpHeaderInfo(ByteSource byteSource,
boolean verbose) throws ImageReadException, IOException
{
InputStream is = null;
try
{
is = byteSource.getInputStream();
// readSignature(is);
return readBmpHeaderInfo(is, null, verbose);
} finally
{
try
{
if (is != null) {
is.close();
}
} catch (Exception e)
{
Debug.debug(e);
}
}
}
public byte[] getICCProfileBytes(ByteSource byteSource, Map params)
throws ImageReadException, IOException
{
return null;
}
public Dimension getImageSize(ByteSource byteSource, Map params)
throws ImageReadException, IOException
{
// make copy of params; we'll clear keys as we consume them.
params = (params == null) ? new HashMap() : new HashMap(params);
boolean verbose = ParamMap.getParamBoolean(params, PARAM_KEY_VERBOSE,
false);
if (params.containsKey(PARAM_KEY_VERBOSE))
params.remove(PARAM_KEY_VERBOSE);
if (params.size() > 0)
{
Object firstKey = params.keySet().iterator().next();
throw new ImageReadException("Unknown parameter: " + firstKey);
}
BmpHeaderInfo bhi = readBmpHeaderInfo(byteSource, verbose);
if (bhi == null)
throw new ImageReadException("BMP: couldn't read header");
return new Dimension(bhi.width, bhi.height);
}
public byte[] embedICCProfile(byte image[], byte profile[])
{
return null;
}
public boolean embedICCProfile(File src, File dst, byte profile[])
{
return false;
}
public IImageMetadata getMetadata(ByteSource byteSource, Map params)
throws ImageReadException, IOException
{
return null;
}
private String getBmpTypeDescription(int Identifier1, int Identifier2)
{
if ((Identifier1 == 'B') && (Identifier2 == 'M'))
return "Windows 3.1x, 95, NT,";
if ((Identifier1 == 'B') && (Identifier2 == 'A'))
return "OS/2 Bitmap Array";
if ((Identifier1 == 'C') && (Identifier2 == 'I'))
return "OS/2 Color Icon";
if ((Identifier1 == 'C') && (Identifier2 == 'P'))
return "OS/2 Color Pointer";
if ((Identifier1 == 'I') && (Identifier2 == 'C'))
return "OS/2 Icon";
if ((Identifier1 == 'P') && (Identifier2 == 'T'))
return "OS/2 Pointer";
return "Unknown";
}
public ImageInfo getImageInfo(ByteSource byteSource, Map params)
throws ImageReadException, IOException
{
// make copy of params; we'll clear keys as we consume them.
params = (params == null) ? new HashMap() : new HashMap(params);
boolean verbose = ParamMap.getParamBoolean(params, PARAM_KEY_VERBOSE,
false);
if (params.containsKey(PARAM_KEY_VERBOSE))
params.remove(PARAM_KEY_VERBOSE);
if (params.size() > 0)
{
Object firstKey = params.keySet().iterator().next();
throw new ImageReadException("Unknown parameter: " + firstKey);
}
ImageContents ic = readImageContents(byteSource.getInputStream(),
FormatCompliance.getDefault(), verbose);
if (ic == null)
throw new ImageReadException("Couldn't read BMP Data");
BmpHeaderInfo bhi = ic.bhi;
byte colorTable[] = ic.colorTable;
if (bhi == null)
throw new ImageReadException("BMP: couldn't read header");
int height = bhi.height;
int width = bhi.width;
ArrayList comments = new ArrayList();
// TODO: comments...
int bitsPerPixel = bhi.bitsPerPixel;
ImageFormat format = ImageFormat.IMAGE_FORMAT_BMP;
String name = "BMP Windows Bitmap";
String mimeType = "image/x-ms-bmp";
// we ought to count images, but don't yet.
int numberOfImages = -1;
// not accurate ... only reflects first
boolean isProgressive = false;
// boolean isProgressive = (fPNGChunkIHDR.InterlaceMethod != 0);
//
// pixels per meter
int physicalWidthDpi = (int) (bhi.hResolution * 1000.0 / 2.54);
float physicalWidthInch = (float) ((double) width / (double) physicalWidthDpi);
// int physicalHeightDpi = 72;
int physicalHeightDpi = (int) (bhi.vResolution * 1000.0 / 2.54);
float physicalHeightInch = (float) ((double) height / (double) physicalHeightDpi);
String formatDetails = "Bmp (" + (char) bhi.identifier1
+ (char) bhi.identifier2 + ": "
+ getBmpTypeDescription(bhi.identifier1, bhi.identifier2) + ")";
boolean isTransparent = false;
boolean usesPalette = colorTable != null;
int colorType = ImageInfo.COLOR_TYPE_RGB;
String compressionAlgorithm = ImageInfo.COMPRESSION_ALGORITHM_RLE;
ImageInfo result = new ImageInfo(formatDetails, bitsPerPixel, comments,
format, name, height, mimeType, numberOfImages,
physicalHeightDpi, physicalHeightInch, physicalWidthDpi,
physicalWidthInch, width, isProgressive, isTransparent,
usesPalette, colorType, compressionAlgorithm);
return result;
}
public boolean dumpImageFile(PrintWriter pw, ByteSource byteSource)
throws ImageReadException, IOException
{
pw.println("bmp.dumpImageFile");
ImageInfo imageData = getImageInfo(byteSource, null);
if (imageData == null)
return false;
imageData.toString(pw, "");
pw.println("");
return true;
}
public FormatCompliance getFormatCompliance(ByteSource byteSource)
throws ImageReadException, IOException
{
boolean verbose = false;
FormatCompliance result = new FormatCompliance(byteSource
.getDescription());
readImageContents(byteSource.getInputStream(), result, verbose);
return result;
}
public BufferedImage getBufferedImage(ByteSource byteSource, Map params)
throws ImageReadException, IOException
{
return getBufferedImage(byteSource.getInputStream(), params);
}
public BufferedImage getBufferedImage(InputStream inputStream, Map params)
throws ImageReadException, IOException
{
// make copy of params; we'll clear keys as we consume them.
params = (params == null) ? new HashMap() : new HashMap(params);
boolean verbose = ParamMap.getParamBoolean(params, PARAM_KEY_VERBOSE,
false);
if (params.containsKey(PARAM_KEY_VERBOSE))
params.remove(PARAM_KEY_VERBOSE);
if (params.containsKey(BUFFERED_IMAGE_FACTORY))
params.remove(BUFFERED_IMAGE_FACTORY);
if (params.size() > 0)
{
Object firstKey = params.keySet().iterator().next();
throw new ImageReadException("Unknown parameter: " + firstKey);
}
ImageContents ic = readImageContents(inputStream,
FormatCompliance.getDefault(), verbose);
if (ic == null)
throw new ImageReadException("Couldn't read BMP Data");
BmpHeaderInfo bhi = ic.bhi;
// byte colorTable[] = ic.colorTable;
// byte imageData[] = ic.imageData;
int width = bhi.width;
int height = bhi.height;
boolean hasAlpha = false;
BufferedImage result = getBufferedImageFactory(params)
.getColorBufferedImage(width, height, hasAlpha);
if (verbose)
{
System.out.println("width: " + width);
System.out.println("height: " + height);
System.out.println("width*height: " + width * height);
System.out.println("width*height*4: " + width * height * 4);
}
PixelParser pixelParser = ic.pixelParser;
pixelParser.processImage(result);
return result;
}
private static final int BITMAP_FILE_HEADER_SIZE = 14;
private static final int BITMAP_INFO_HEADER_SIZE = 40;
public void writeImage(BufferedImage src, OutputStream os, Map params)
throws ImageWriteException, IOException
{
// make copy of params; we'll clear keys as we consume them.
params = (params == null) ? new HashMap() : new HashMap(params);
// clear format key.
if (params.containsKey(PARAM_KEY_FORMAT))
params.remove(PARAM_KEY_FORMAT);
if (params.size() > 0)
{
Object firstKey = params.keySet().iterator().next();
throw new ImageWriteException("Unknown parameter: " + firstKey);
}
final SimplePalette palette = new PaletteFactory().makePaletteSimple(
src, 256);
BMPWriter writer = null;
if (palette == null)
writer = new BMPWriterRGB();
else
writer = new BMPWriterPalette(palette);
byte imagedata[] = writer.getImageData(src);
BinaryOutputStream bos = new BinaryOutputStream(os, BYTE_ORDER_INTEL);
{
// write BitmapFileHeader
os.write(0x42); // B, Windows 3.1x, 95, NT, Bitmap
os.write(0x4d); // M
int filesize = BITMAP_FILE_HEADER_SIZE + BITMAP_INFO_HEADER_SIZE + // header
// size
4 * writer.getPaletteSize() + // palette size in bytes
imagedata.length;
bos.write4Bytes(filesize);
bos.write4Bytes(0); // reserved
bos.write4Bytes(BITMAP_FILE_HEADER_SIZE + BITMAP_INFO_HEADER_SIZE
+ 4 * writer.getPaletteSize()); // Bitmap Data Offset
}
int width = src.getWidth();
int height = src.getHeight();
{ // write BitmapInfoHeader
bos.write4Bytes(BITMAP_INFO_HEADER_SIZE); // Bitmap Info Header Size
bos.write4Bytes(width); // width
bos.write4Bytes(height); // height
bos.write2Bytes(1); // Number of Planes
bos.write2Bytes(writer.getBitsPerPixel()); // Bits Per Pixel
bos.write4Bytes(BI_RGB); // Compression
bos.write4Bytes(imagedata.length); // Bitmap Data Size
bos.write4Bytes(0); // HResolution
bos.write4Bytes(0); // VResolution
if (palette == null)
bos.write4Bytes(0); // Colors
else
bos.write4Bytes(palette.length()); // Colors
bos.write4Bytes(0); // Important Colors
// bos.write_4_bytes(0); // Compression
}
{ // write Palette
writer.writePalette(bos);
}
{ // write Image Data
bos.writeByteArray(imagedata);
}
}
/**
* Extracts embedded XML metadata as XML string.
* <p>
*
* @param byteSource
* File containing image data.
* @param params
* Map of optional parameters, defined in SanselanConstants.
* @return Xmp Xml as String, if present. Otherwise, returns null.
*/
public String getXmpXml(ByteSource byteSource, Map params)
throws ImageReadException, IOException
{
return null;
}
}