Package com.itextpdf.text.pdf.codec

Class BmpImage

java.lang.Object

com.itextpdf.text.pdf.codec.BmpImage

public class BmpImage
extends Object

Reads a BMP image. All types of BMP can be read.

It is based in the JAI codec.

Field Summary

Fields

Modifier and Type	Field	Description
private int	alphaMask
private static final int	BI_BITFIELDS
private static final int	BI_RGB
private static final int	BI_RLE4
private static final int	BI_RLE8
private long	bitmapFileSize
private long	bitmapOffset
private int	bitsPerPixel
private int	blueMask
private long	compression
private int	greenMask
(package private) int	height
private long	imageSize
private int	imageType
private InputStream	inputStream
private boolean	isBottomUp
private static final int	LCS_CALIBRATED_RGB
private static final int	LCS_CMYK
private static final int	LCS_sRGB
private int	numBands
private byte[]	palette
HashMap<String,Object>	properties
private int	redMask
private static final int	VERSION_2_1_BIT
private static final int	VERSION_2_24_BIT
private static final int	VERSION_2_4_BIT
private static final int	VERSION_2_8_BIT
private static final int	VERSION_3_1_BIT
private static final int	VERSION_3_24_BIT
private static final int	VERSION_3_4_BIT
private static final int	VERSION_3_8_BIT
private static final int	VERSION_3_NT_16_BIT
private static final int	VERSION_3_NT_32_BIT
private static final int	VERSION_4_1_BIT
private static final int	VERSION_4_16_BIT
private static final int	VERSION_4_24_BIT
private static final int	VERSION_4_32_BIT
private static final int	VERSION_4_4_BIT
private static final int	VERSION_4_8_BIT
(package private) int	width
private long	xPelsPerMeter
private long	yPelsPerMeter

Constructor Summary

Constructors

Constructor	Description
BmpImage(InputStream is, boolean noHeader, int size)

Method Summary

Modifier and Type	Method	Description
private byte[]	decodeRLE(boolean is8, byte[] values)
private int	findMask(int mask)
private int	findShift(int mask)
private Image	getImage()
static Image	getImage(byte[] data)	Reads a BMP from a byte array.
static Image	getImage(InputStream is)	Reads a BMP from a stream.
static Image	getImage(InputStream is, boolean noHeader, int size)	Reads a BMP from a stream.
static Image	getImage(String file)	Reads a BMP from a file.
static Image	getImage(URL url)	Reads a BMP from an url.
private byte[]	getPalette(int group)
private Image	indexedModel(byte[] bdata, int bpc, int paletteEntries)
protected void	process(InputStream stream, boolean noHeader)
private Image	read1632Bit(boolean is32)
private Image	read1Bit(int paletteEntries)
private void	read24Bit(byte[] bdata)
private Image	read4Bit(int paletteEntries)
private Image	read8Bit(int paletteEntries)
private long	readDWord(InputStream stream)
private int	readInt(InputStream stream)
private int	readLong(InputStream stream)
private void	readPalette(int sizeOfPalette)
private Image	readRLE4()
private Image	readRLE8()
private int	readShort(InputStream stream)
private int	readUnsignedByte(InputStream stream)
private long	readUnsignedInt(InputStream stream)
private int	readUnsignedShort(InputStream stream)
private int	readWord(InputStream stream)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

inputStream

private InputStream inputStream

bitmapFileSize

private long bitmapFileSize

bitmapOffset

private long bitmapOffset

compression

private long compression

imageSize

private long imageSize

palette

private byte[] palette

imageType

private int imageType

numBands

private int numBands

isBottomUp

private boolean isBottomUp

bitsPerPixel

private int bitsPerPixel

redMask

private int redMask

greenMask

private int greenMask

blueMask

private int blueMask

alphaMask

private int alphaMask

properties

public HashMap<String,Object> properties

xPelsPerMeter

private long xPelsPerMeter

yPelsPerMeter

private long yPelsPerMeter

VERSION_2_1_BIT

private static final int VERSION_2_1_BIT

See Also:

• Constant Field Values

VERSION_2_4_BIT

private static final int VERSION_2_4_BIT

See Also:

• Constant Field Values

VERSION_2_8_BIT

private static final int VERSION_2_8_BIT

See Also:

• Constant Field Values

VERSION_2_24_BIT

private static final int VERSION_2_24_BIT

See Also:

• Constant Field Values

VERSION_3_1_BIT

private static final int VERSION_3_1_BIT

See Also:

• Constant Field Values

VERSION_3_4_BIT

private static final int VERSION_3_4_BIT

See Also:

• Constant Field Values

VERSION_3_8_BIT

private static final int VERSION_3_8_BIT

See Also:

• Constant Field Values

VERSION_3_24_BIT

private static final int VERSION_3_24_BIT

See Also:

• Constant Field Values

VERSION_3_NT_16_BIT

private static final int VERSION_3_NT_16_BIT

See Also:

• Constant Field Values

VERSION_3_NT_32_BIT

private static final int VERSION_3_NT_32_BIT

See Also:

• Constant Field Values

VERSION_4_1_BIT

private static final int VERSION_4_1_BIT

See Also:

• Constant Field Values

VERSION_4_4_BIT

private static final int VERSION_4_4_BIT

See Also:

• Constant Field Values

VERSION_4_8_BIT

private static final int VERSION_4_8_BIT

See Also:

• Constant Field Values

VERSION_4_16_BIT

private static final int VERSION_4_16_BIT

See Also:

• Constant Field Values

VERSION_4_24_BIT

private static final int VERSION_4_24_BIT

See Also:

• Constant Field Values

VERSION_4_32_BIT

private static final int VERSION_4_32_BIT

See Also:

• Constant Field Values

LCS_CALIBRATED_RGB

private static final int LCS_CALIBRATED_RGB

See Also:

• Constant Field Values

LCS_sRGB

private static final int LCS_sRGB

See Also:

• Constant Field Values

LCS_CMYK

private static final int LCS_CMYK

See Also:

• Constant Field Values

BI_RGB

private static final int BI_RGB

See Also:

• Constant Field Values

BI_RLE8

private static final int BI_RLE8

See Also:

• Constant Field Values

BI_RLE4

private static final int BI_RLE4

See Also:

• Constant Field Values

BI_BITFIELDS

private static final int BI_BITFIELDS

See Also:

• Constant Field Values

width

int width

height

int height

Constructor Details

BmpImage

BmpImage(InputStream is,
 boolean noHeader,
 int size)
  throws IOException

Throws:

IOException

Method Details

getImage

public static Image getImage(URL url)
                      throws IOException

Reads a BMP from an url.

Parameters:

url - the url

Returns:

the image

Throws:

IOException - on error

getImage

public static Image getImage(InputStream is)
                      throws IOException

Reads a BMP from a stream. The stream is not closed.

Parameters:

is - the stream

Returns:

the image

Throws:

IOException - on error

getImage

public static Image getImage(InputStream is,
 boolean noHeader,
 int size)
                      throws IOException

Reads a BMP from a stream. The stream is not closed. The BMP may not have a header and be considered as a plain DIB.

Parameters:

is - the stream

noHeader - true to process a plain DIB

size - the size of the DIB. Not used for a BMP

Returns:

the image

Throws:

IOException - on error

getImage

public static Image getImage(String file)
                      throws IOException

Reads a BMP from a file.

Parameters:

file - the file

Returns:

the image

Throws:

IOException - on error

getImage

public static Image getImage(byte[] data)
                      throws IOException

Reads a BMP from a byte array.

Parameters:

data - the byte array

Returns:

the image

Throws:

IOException - on error

process

protected void process(InputStream stream,
 boolean noHeader)
                throws IOException

Throws:

IOException

getPalette

private byte[] getPalette(int group)

getImage

private Image getImage()
                throws IOException,
BadElementException

Throws:

IOException

BadElementException

indexedModel

private Image indexedModel(byte[] bdata,
 int bpc,
 int paletteEntries)
                    throws BadElementException

Throws:

BadElementException

readPalette

private void readPalette(int sizeOfPalette)
                  throws IOException

Throws:

IOException

read1Bit

private Image read1Bit(int paletteEntries)
                throws IOException,
BadElementException

Throws:

IOException

BadElementException

read4Bit

private Image read4Bit(int paletteEntries)
                throws IOException,
BadElementException

Throws:

IOException

BadElementException

read8Bit

private Image read8Bit(int paletteEntries)
                throws IOException,
BadElementException

Throws:

IOException

BadElementException

read24Bit

private void read24Bit(byte[] bdata)

findMask

private int findMask(int mask)

findShift

private int findShift(int mask)

read1632Bit

private Image read1632Bit(boolean is32)
                   throws IOException,
BadElementException

Throws:

IOException

BadElementException

readRLE8

private Image readRLE8()
                throws IOException,
BadElementException

Throws:

IOException

BadElementException

readRLE4

private Image readRLE4()
                throws IOException,
BadElementException

Throws:

IOException

BadElementException

decodeRLE

private byte[] decodeRLE(boolean is8,
 byte[] values)

readUnsignedByte

private int readUnsignedByte(InputStream stream)
                      throws IOException

Throws:

IOException

readUnsignedShort

private int readUnsignedShort(InputStream stream)
                       throws IOException

Throws:

IOException

readShort

private int readShort(InputStream stream)
               throws IOException

Throws:

IOException

readWord

private int readWord(InputStream stream)
              throws IOException

Throws:

IOException

readUnsignedInt

private long readUnsignedInt(InputStream stream)
                      throws IOException

Throws:

IOException

readInt

private int readInt(InputStream stream)
             throws IOException

Throws:

IOException

readDWord

private long readDWord(InputStream stream)
                throws IOException

Throws:

IOException

readLong

private int readLong(InputStream stream)
              throws IOException

Throws:

IOException