java.lang.Object
- com.itextpdf.io.image.BmpImageHelper

final class BmpImageHelper
extends java.lang.Object

Nested Class Summary

Nested Classes
Modifier and Type Class Description

private static class BmpImageHelper.BmpParameters

Field Summary

Fields
Modifier and Type	Field	Description
`private static int`	`BI_BITFIELDS`
`private static int`	`BI_RGB`
`private static int`	`BI_RLE4`
`private static int`	`BI_RLE8`
`private static int`	`LCS_CALIBRATED_RGB`
`private static int`	`LCS_CMYK`
`private static int`	`LCS_SRGB`
`private static int`	`VERSION_2_1_BIT`
`private static int`	`VERSION_2_24_BIT`
`private static int`	`VERSION_2_4_BIT`
`private static int`	`VERSION_2_8_BIT`
`private static int`	`VERSION_3_1_BIT`
`private static int`	`VERSION_3_24_BIT`
`private static int`	`VERSION_3_4_BIT`
`private static int`	`VERSION_3_8_BIT`
`private static int`	`VERSION_3_NT_16_BIT`
`private static int`	`VERSION_3_NT_32_BIT`
`private static int`	`VERSION_4_1_BIT`
`private static int`	`VERSION_4_16_BIT`
`private static int`	`VERSION_4_24_BIT`
`private static int`	`VERSION_4_32_BIT`
`private static int`	`VERSION_4_4_BIT`
`private static int`	`VERSION_4_8_BIT`

Constructor Summary

Constructors
Constructor Description

BmpImageHelper()

Method Summary

All Methods Static Methods Concrete Methods
Modifier and Type	Method	Description
`private static byte[]`	`decodeRLE(boolean is8, byte[] values, BmpImageHelper.BmpParameters bmp)`
`private static int`	`findMask(int mask)`
`private static int`	`findShift(int mask)`
`private static boolean`	`getImage(BmpImageHelper.BmpParameters bmp)`
`private static byte[]`	`getPalette(int group, BmpImageHelper.BmpParameters bmp)`
`private static void`	`indexedModel(byte[] bdata, int bpc, int paletteEntries, BmpImageHelper.BmpParameters bmp)`
`private static void`	`process(BmpImageHelper.BmpParameters bmp, java.io.InputStream stream)`
`static void`	`processImage(ImageData image)`	Process the passed Image data as a BMP image.
`private static void`	`read1632Bit(boolean is32, BmpImageHelper.BmpParameters bmp)`
`private static void`	`read1Bit(int paletteEntries, BmpImageHelper.BmpParameters bmp)`
`private static void`	`read24Bit(byte[] bdata, BmpImageHelper.BmpParameters bmp)`
`private static void`	`read4Bit(int paletteEntries, BmpImageHelper.BmpParameters bmp)`
`private static void`	`read8Bit(int paletteEntries, BmpImageHelper.BmpParameters bmp)`
`private static long`	`readDWord(java.io.InputStream stream)`
`private static int`	`readInt(java.io.InputStream stream)`
`private static int`	`readLong(java.io.InputStream stream)`
`private static void`	`readPalette(int sizeOfPalette, BmpImageHelper.BmpParameters bmp)`
`private static void`	`readRLE4(BmpImageHelper.BmpParameters bmp)`
`private static void`	`readRLE8(BmpImageHelper.BmpParameters bmp)`
`private static int`	`readShort(java.io.InputStream stream)`
`private static int`	`readUnsignedByte(java.io.InputStream stream)`
`private static long`	`readUnsignedInt(java.io.InputStream stream)`
`private static int`	`readUnsignedShort(java.io.InputStream stream)`
`private static int`	`readWord(java.io.InputStream stream)`

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail
- 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

Constructor Detail
- BmpImageHelper
```
BmpImageHelper()
```

Method Detail

processImage
```
public static void processImage(ImageData image)
```
Process the passed Image data as a BMP image. Image is loaded and all image attributes are initialized and/or updated

Parameters:

image - the image to process as a BMP image

process

private static void process(BmpImageHelper.BmpParameters bmp,
                            java.io.InputStream stream)
                     throws java.io.IOException

Throws:: java.io.IOException

getPalette

private static byte[] getPalette(int group,
                                 BmpImageHelper.BmpParameters bmp)

getImage

private static boolean getImage(BmpImageHelper.BmpParameters bmp)
                         throws java.io.IOException

Throws:: java.io.IOException

indexedModel

private static void indexedModel(byte[] bdata,
                                 int bpc,
                                 int paletteEntries,
                                 BmpImageHelper.BmpParameters bmp)

readPalette

private static void readPalette(int sizeOfPalette,
                                BmpImageHelper.BmpParameters bmp)
                         throws java.io.IOException

Throws:: java.io.IOException

read1Bit

private static void read1Bit(int paletteEntries,
                             BmpImageHelper.BmpParameters bmp)
                      throws java.io.IOException

Throws:: java.io.IOException

read4Bit

private static void read4Bit(int paletteEntries,
                             BmpImageHelper.BmpParameters bmp)
                      throws java.io.IOException

Throws:: java.io.IOException

read8Bit

private static void read8Bit(int paletteEntries,
                             BmpImageHelper.BmpParameters bmp)
                      throws java.io.IOException

Throws:: java.io.IOException

read24Bit

private static void read24Bit(byte[] bdata,
                              BmpImageHelper.BmpParameters bmp)
                       throws java.io.IOException

Throws:: java.io.IOException

findMask

private static int findMask(int mask)

findShift

private static int findShift(int mask)

read1632Bit

private static void read1632Bit(boolean is32,
                                BmpImageHelper.BmpParameters bmp)
                         throws java.io.IOException

Throws:: java.io.IOException

readRLE8

private static void readRLE8(BmpImageHelper.BmpParameters bmp)
                      throws java.io.IOException

Throws:: java.io.IOException

readRLE4

private static void readRLE4(BmpImageHelper.BmpParameters bmp)
                      throws java.io.IOException

Throws:: java.io.IOException

decodeRLE

private static byte[] decodeRLE(boolean is8,
                                byte[] values,
                                BmpImageHelper.BmpParameters bmp)

readUnsignedByte

private static int readUnsignedByte(java.io.InputStream stream)
                             throws java.io.IOException

Throws:: java.io.IOException

readUnsignedShort

private static int readUnsignedShort(java.io.InputStream stream)
                              throws java.io.IOException

Throws:: java.io.IOException

readShort

private static int readShort(java.io.InputStream stream)
                      throws java.io.IOException

Throws:: java.io.IOException

readWord

private static int readWord(java.io.InputStream stream)
                     throws java.io.IOException

Throws:: java.io.IOException

readUnsignedInt

private static long readUnsignedInt(java.io.InputStream stream)
                             throws java.io.IOException

Throws:: java.io.IOException

readInt

private static int readInt(java.io.InputStream stream)
                    throws java.io.IOException

Throws:: java.io.IOException

readDWord

private static long readDWord(java.io.InputStream stream)
                       throws java.io.IOException

Throws:: java.io.IOException

readLong

private static int readLong(java.io.InputStream stream)
                     throws java.io.IOException

Throws:: java.io.IOException

Class BmpImageHelper

Nested Class Summary

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

VERSION_2_1_BIT

VERSION_2_4_BIT

VERSION_2_8_BIT

VERSION_2_24_BIT

VERSION_3_1_BIT

VERSION_3_4_BIT

VERSION_3_8_BIT

VERSION_3_24_BIT

VERSION_3_NT_16_BIT

VERSION_3_NT_32_BIT

VERSION_4_1_BIT

VERSION_4_4_BIT

VERSION_4_8_BIT

VERSION_4_16_BIT

VERSION_4_24_BIT

VERSION_4_32_BIT

LCS_CALIBRATED_RGB

LCS_SRGB

LCS_CMYK

BI_RGB

BI_RLE8

BI_RLE4

BI_BITFIELDS

Constructor Detail

BmpImageHelper

Method Detail

processImage

process

getPalette

getImage

indexedModel

readPalette

read1Bit

read4Bit

read8Bit

read24Bit

findMask

findShift

read1632Bit

readRLE8

readRLE4

decodeRLE

readUnsignedByte

readUnsignedShort

readShort

readWord

readUnsignedInt

readInt

readDWord

readLong