BMPImageEncoder

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non_com.media.jai.codec
Class BMPImageEncoder

java.lang.Object
  non_com.media.jai.codec.ImageEncoderImpl
      non_com.media.jai.codec.BMPImageEncoder

All Implemented Interfaces:: ImageEncoder

public class BMPImageEncoder
extends ImageEncoderImpl

An ImageEncoder for the various versions of the BMP image file format. Unless specified otherwise by the BMPDecodeParam object passed to the constructor, Version 3 will be the default version used.

If the image to be encoded has an IndexColorModel and can be encoded using upto 8 bits per pixel, the image will be written out as a Palette color image with an appropriate number of bits per pixel. For example an image having a 256 color IndexColorModel will be written out as a Palette image with 8 bits per pixel while one with a 16 color palette will be written out as a Palette image with 4 bits per pixel. For all other images, the 24 bit image format will be used.

Field Summary

private int compImageSize


private int h


private boolean isCompressed


private boolean isTopDown


private java.io.OutputStream output


private int version


private int w


Fields inherited from class non_com.media.jai.codec.ImageEncoderImpl

param

Constructor Summary

BMPImageEncoder(java.io.OutputStream output, ImageEncodeParam param)
          An ImageEncoder for the BMP file format.

Method Summary

void encode(java.awt.image.RenderedImage im)
          Encodes a RenderedImage and writes the output to the OutputStream associated with this ImageEncoder.

private void encodeRLE4(byte[] bipixels, int scanlineBytes)


private void encodeRLE8(byte[] bpixels, int scanlineBytes)


private void incCompImageSize(int value)


private boolean isEven(int number)


void writeDWord(int dword)
          Description of the Method

private void writeFileHeader(int fileSize, int offset)


private void writeInfoHeader(int headerSize, int bitsPerPixel)


private void writePixels(int l, int scanlineBytes, int bitsPerPixel, int[] pixels, byte[] bpixels, int padding, int numBands, java.awt.image.IndexColorModel icm)


private void writeSize(int dword, int offset)


void writeWord(int word)
          Description of the Method

Methods inherited from class non_com.media.jai.codec.ImageEncoderImpl

encode, getOutputStream, getParam, setParam

Methods inherited from class java.lang.Object

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

Field Detail

output

private java.io.OutputStream output

version

private int version

isCompressed

private boolean isCompressed

isTopDown

private boolean isTopDown

w

private int w

h

private int h

compImageSize

private int compImageSize

Constructor Detail