Package org.apache.commons.imaging.formats.png

Class AbstractScanExpediter

java.lang.Object

org.apache.commons.imaging.formats.png.AbstractScanExpediter

Direct Known Subclasses:

ScanExpediterInterlaced, ScanExpediterSimple

abstract class AbstractScanExpediter
extends java.lang.Object

Field Summary

Fields

Modifier and Type	Field	Description
(package private) AbstractTransparencyFilter	abstractTransparencyFilter
(package private) java.awt.image.BufferedImage	bi
(package private) int	bitDepth
(package private) int	bitsPerPixel
(package private) int	bytesPerPixel
(package private) GammaCorrection	gammaCorrection
(package private) int	height
(package private) java.io.InputStream	is
(package private) PngChunkPlte	pngChunkPlte
(package private) PngColorType	pngColorType
(package private) int	width

Constructor Summary

Constructors

Constructor	Description
AbstractScanExpediter(int width, int height, java.io.InputStream is, java.awt.image.BufferedImage bi, PngColorType pngColorType, int bitDepth, int bitsPerPixel, PngChunkPlte pngChunkPLTE, GammaCorrection gammaCorrection, AbstractTransparencyFilter abstractTransparencyFilter)

Method Summary

Modifier and Type	Method	Description
abstract void	drive()
(package private) int	getBitsToBytesRoundingUp(int bits)
(package private) byte[]	getNextScanline(java.io.InputStream is, int length, byte[] prev, int bytesPerPixel)
(package private) int	getPixelArgb(int alpha, int red, int green, int blue)
(package private) int	getPixelRgb(int red, int green, int blue)
(package private) int	getRgb(BitParser bitParser, int pixelIndexInScanline)
(package private) ScanlineFilter	getScanlineFilter(FilterType filterType, int bytesPerPixel)
(package private) byte[]	unfilterScanline(FilterType filterType, byte[] src, byte[] prev, int bytesPerPixel)

Methods inherited from class java.lang.Object

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

Field Detail

width

final int width

height

final int height

is

final java.io.InputStream is

bi

final java.awt.image.BufferedImage bi

pngColorType

final PngColorType pngColorType

bitDepth

final int bitDepth

bytesPerPixel

final int bytesPerPixel

bitsPerPixel

final int bitsPerPixel

pngChunkPlte

final PngChunkPlte pngChunkPlte

gammaCorrection

final GammaCorrection gammaCorrection

abstractTransparencyFilter

final AbstractTransparencyFilter abstractTransparencyFilter

Constructor Detail

AbstractScanExpediter

AbstractScanExpediter(int width,
                      int height,
                      java.io.InputStream is,
                      java.awt.image.BufferedImage bi,
                      PngColorType pngColorType,
                      int bitDepth,
                      int bitsPerPixel,
                      PngChunkPlte pngChunkPLTE,
                      GammaCorrection gammaCorrection,
                      AbstractTransparencyFilter abstractTransparencyFilter)

Method Detail

drive

public abstract void drive()
                    throws ImagingException,
                           java.io.IOException

Throws:

ImagingException

java.io.IOException

getBitsToBytesRoundingUp

final int getBitsToBytesRoundingUp(int bits)

getNextScanline

byte[] getNextScanline(java.io.InputStream is,
                       int length,
                       byte[] prev,
                       int bytesPerPixel)
                throws ImagingException,
                       java.io.IOException

Throws:

ImagingException

java.io.IOException

getPixelArgb

final int getPixelArgb(int alpha,
                       int red,
                       int green,
                       int blue)

getPixelRgb

final int getPixelRgb(int red,
                      int green,
                      int blue)

getRgb

int getRgb(BitParser bitParser,
           int pixelIndexInScanline)
    throws ImagingException,
           java.io.IOException

Throws:

ImagingException

java.io.IOException

getScanlineFilter

ScanlineFilter getScanlineFilter(FilterType filterType,
                                 int bytesPerPixel)

unfilterScanline

byte[] unfilterScanline(FilterType filterType,
                        byte[] src,
                        byte[] prev,
                        int bytesPerPixel)
                 throws ImagingException,
                        java.io.IOException

Throws:

ImagingException

java.io.IOException