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Implement custom filter callback in Java

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DRC
2011-09-20 05:02:19 +00:00
parent 1109f68db6
commit f343d7332a
39 changed files with 721 additions and 113 deletions
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42
java/org/libjpegturbo/turbojpeg/TJTransform.java
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@@ -37,7 +37,6 @@ public class TJTransform extends Rectangle {
private static final long serialVersionUID = -127367705761430371L;
/**
* The number of lossless transform operations
*/
@@ -104,21 +103,29 @@ public class TJTransform extends Rectangle {
* partial MCU blocks that cannot be transformed will be left in place, which
* will create odd-looking strips on the right or bottom edge of the image.
*/
final public static int OPT_PERFECT = 1;
final public static int OPT_PERFECT = 1;
/**
* This option will discard any partial MCU blocks that cannot be
* transformed.
*/
final public static int OPT_TRIM = 2;
final public static int OPT_TRIM = 2;
/**
* This option will enable lossless cropping.
*/
final public static int OPT_CROP = 4;
final public static int OPT_CROP = 4;
/**
* This option will discard the color data in the input image and produce
* a grayscale output image.
*/
final public static int OPT_GRAY = 8;
final public static int OPT_GRAY = 8;
/**
* This option will prevent {@link TJTransformer#transform
* TJTransformer.transform()} from outputting a JPEG image for this
* particular transform. This can be used in conjunction with a custom
* filter to capture the transformed DCT coefficients without transcoding
* them.
*/
final public static int OPT_NOOUTPUT = 16;
/**
@@ -146,28 +153,36 @@ public class TJTransform extends Rectangle {
*
* @param options the bitwise OR of one or more of the transform options
* (<code>OPT_*</code>)
*
* @param cf an instance of an object that implements the {@link
* TJCustomFilter} interface, or null if no custom filter is needed
*/
public TJTransform(int x, int y, int w, int h, int op, int options)
throws Exception {
public TJTransform(int x, int y, int w, int h, int op, int options,
TJCustomFilter cf) throws Exception {
super(x, y, w, h);
this.op = op; this.options = options;
this.op = op; this.options = options; this.cf = cf;
}
/**
* Create a new lossless transform instance with the given parameters.
*
* @param r a <code>Rectangle</code> instance which specifies the cropping
* region. See {@link #TJTransform(int, int, int, int, int, int)} for more
* region. See {@link
* #TJTransform(int, int, int, int, int, int, TJCustomFilter)} for more
* detail.
*
* @param op one of the transform operations (<code>OP_*</code>)
*
* @param options the bitwise OR of one or more of the transform options
* (<code>OPT_*</code>)
*
* @param cf an instance of an object that implements the {@link
* TJCustomFilter} interface, or null if no custom filter is needed
*/
public TJTransform(Rectangle r, int op, int options) throws Exception {
public TJTransform(Rectangle r, int op, int options,
TJCustomFilter cf) throws Exception {
super(r);
this.op = op; this.options = options;
this.op = op; this.options = options; this.cf = cf;
}
/**
@@ -179,4 +194,9 @@ public class TJTransform extends Rectangle {
* Transform options (bitwise OR of one or more of <code>OPT_*</code>)
*/
public int options = 0;
/**
* Custom filter instance
*/
public TJCustomFilter cf = null;
}