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java.lang.Objectdeadbeef.Tools.PngEncoder
deadbeef.Tools.PngEncoderB
public class PngEncoderB
PngEncoderB takes a Java BufferedImage object and creates a byte string which can be saved as a PNG file. The encoder will accept BufferedImages with eight-bit samples or 4-byte ARGB samples.
There is also code to handle 4-byte samples returned as one int per pixel, but that has not been tested.
Thanks to Jay Denny at KeyPoint Software
http://www.keypoint.com/
who let me develop this code on company time.
You may contact me with (probably very-much-needed) improvements, comments, and bug fixes at:
david@catcode.com
This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
A copy of the GNU LGPL may be found at
http://www.gnu.org/copyleft/lesser.html
| Field Summary |
|---|
| Fields inherited from class deadbeef.Tools.PngEncoder |
|---|
ENCODE_ALPHA, FILTER_LAST, FILTER_NONE, FILTER_SUB, FILTER_UP, NO_ALPHA |
| Constructor Summary | |
|---|---|
PngEncoderB()
Class constructor. |
|
PngEncoderB(java.awt.image.BufferedImage image)
Class constructor specifying BufferedImage to encode, with no alpha channel encoding. |
|
PngEncoderB(java.awt.image.BufferedImage image,
boolean encodeAlpha)
Class constructor specifying BufferedImage to encode, and whether to encode alpha. |
|
PngEncoderB(java.awt.image.BufferedImage image,
boolean encodeAlpha,
int whichFilter)
Class constructor specifying BufferedImage to encode, whether to encode alpha, and filter to use. |
|
PngEncoderB(java.awt.image.BufferedImage image,
boolean encodeAlpha,
int whichFilter,
int compLevel)
Class constructor specifying BufferedImage source to encode, whether to encode alpha, filter to use, and compression level. |
|
| Method Summary | |
|---|---|
byte[] |
pngEncode()
Creates an array of bytes that is the PNG equivalent of the current image. |
byte[] |
pngEncode(boolean encodeAlpha)
Creates an array of bytes that is the PNG equivalent of the current image, specifying whether to encode alpha or not. |
void |
setImage(java.awt.image.BufferedImage image)
Set the BufferedImage to be encoded. |
| Methods inherited from class deadbeef.Tools.PngEncoder |
|---|
getCompressionLevel, getEncodeAlpha, getFilter, setCompressionLevel, setEncodeAlpha, setFilter, setImage |
| Methods inherited from class java.lang.Object |
|---|
equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
| Constructor Detail |
|---|
public PngEncoderB()
public PngEncoderB(java.awt.image.BufferedImage image)
image - A Java BufferedImage object
public PngEncoderB(java.awt.image.BufferedImage image,
boolean encodeAlpha)
image - A Java BufferedImage objectencodeAlpha - Encode the alpha channel? false=no; true=yes
public PngEncoderB(java.awt.image.BufferedImage image,
boolean encodeAlpha,
int whichFilter)
image - A Java BufferedImage objectencodeAlpha - Encode the alpha channel? false=no; true=yeswhichFilter - 0=none, 1=sub, 2=up
public PngEncoderB(java.awt.image.BufferedImage image,
boolean encodeAlpha,
int whichFilter,
int compLevel)
image - A Java BufferedImage objectencodeAlpha - Encode the alpha channel? false=no; true=yeswhichFilter - 0=none, 1=sub, 2=upcompLevel - 0..9| Method Detail |
|---|
public void setImage(java.awt.image.BufferedImage image)
image - A Java BufferedImage objectpublic byte[] pngEncode(boolean encodeAlpha)
pngEncode in class PngEncoderencodeAlpha - boolean false=no alpha, true=encode alpha
public byte[] pngEncode()
pngEncode in class PngEncoder
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