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-rw-r--r--src/java/com/jogamp/common/util/CustomCompress.java96
-rw-r--r--src/java/com/jogamp/common/util/bin/exe-windows-i386.deflbin305 -> 300 bytes
-rw-r--r--src/java/com/jogamp/common/util/bin/exe-windows-x86_64.deflbin353 -> 345 bytes
3 files changed, 71 insertions, 25 deletions
diff --git a/src/java/com/jogamp/common/util/CustomCompress.java b/src/java/com/jogamp/common/util/CustomCompress.java
index 6850873..6bca095 100644
--- a/src/java/com/jogamp/common/util/CustomCompress.java
+++ b/src/java/com/jogamp/common/util/CustomCompress.java
@@ -39,7 +39,7 @@ import java.util.zip.Inflater;
/**
* All in memory inflater / deflator for small chunks using streams
* <p>
- * Stream format for deflated data:
+ * Stream header of deflated data:
* <ul>
* <li>4 bytes magic 0xDEF1A7E0 (Big Endian)</li>
* <li>4 bytes integer deflated-size (Big Endian)</li>
@@ -49,31 +49,60 @@ import java.util.zip.Inflater;
* </p>
*/
public class CustomCompress {
+ /** Start of stream header for deflated data */
public static final int MAGIC = 0xDEF1A7E0;
- public static byte[] inflateFromStream(final InputStream in) throws IOException {
- final int inSize;
- final int outSize;
+ /**
+ *
+ * @param in {@link InputStream} at start of stream header, i.e. position {@link #MAGIC}.
+ * @return the inflated bytes from the stream
+ * @throws IOException if an I/O or deflation exception occurs
+ * @throws IllegalArgumentException if {@code inLen} &le; 0 or {@code outLen} &le; 0, as read from header
+ */
+ public static byte[] inflateFromStream(final InputStream in)
+ throws IOException, ArrayIndexOutOfBoundsException, IllegalArgumentException
+ {
+ final int inLen;
+ final int outLen;
{
final DataInputStream din = new DataInputStream(in);
final int _magic = din.readInt();
if( _magic != MAGIC ) {
throw new IOException("wrong magic: "+Integer.toHexString(_magic)+", expected "+Integer.toHexString(MAGIC));
}
- inSize = din.readInt();
- outSize = din.readInt();
+ inLen = din.readInt();
+ outLen = din.readInt();
}
- if( 0 >= inSize ) {
- throw new IOException("Invalid deflated-size "+inSize);
+ return inflateFromStream(in, inLen, outLen, new byte[outLen], 0);
+ }
+
+ /**
+ *
+ * @param in {@link InputStream} at start of deflated bytes, i.e. after the stream header.
+ * @param inLen number of deflated bytes in stream {@code in}
+ * @param outLen number of inflated {@code output} bytes at {@code outOff}
+ * @param output sink for deflated bytes
+ * @param outOff offset to {@code output}
+ * @return the inflated bytes from the stream, passing {@code output} for chaining
+ * @throws IOException if an I/O or deflation exception occurs
+ * @throws ArrayIndexOutOfBoundsException if {@code outOff} and {@code outLen} exceeds {@code output}
+ * @throws IllegalArgumentException if {@code inLen} &le; 0 or {@code outLen} &le; 0
+ */
+ public static byte[] inflateFromStream(final InputStream in, final int inLen, final int outLen,
+ final byte[] output, final int outOff)
+ throws IOException, ArrayIndexOutOfBoundsException, IllegalArgumentException
+ {
+ if (inLen <= 0 || outLen <= 0 ) {
+ throw new IllegalArgumentException("Length[input "+inLen+", output "+outLen+"]");
}
- if( 0 >= outSize ) {
- throw new IOException("Invalid inflated-size "+outSize);
+ if (outOff < 0 || output.length < outOff + outLen) {
+ throw new ArrayIndexOutOfBoundsException("output.length "+output.length+", offset "+outOff+", length "+outLen);
}
- final byte[] input = new byte[inSize];
+ final byte[] input = new byte[inLen];
int numBytes = 0;
try {
while (true) {
- final int remBytes = inSize - numBytes;
+ final int remBytes = inLen - numBytes;
int count;
if ( 0 >= remBytes || (count = in.read(input, numBytes, remBytes)) == -1 ) {
break;
@@ -83,17 +112,16 @@ public class CustomCompress {
} finally {
in.close();
}
- if( inSize != numBytes ) {
- throw new IOException("Got "+numBytes+" bytes != expected "+inSize);
+ if( inLen != numBytes ) {
+ throw new IOException("Got "+numBytes+" bytes != expected "+inLen);
}
- final byte[] output = new byte[outSize];
try {
final Inflater inflater = new Inflater();
- inflater.setInput(input, 0, inSize);
- final int outSize2 = inflater.inflate(output, 0, outSize);
+ inflater.setInput(input, 0, inLen);
+ final int outSize = inflater.inflate(output, outOff, outLen);
inflater.end();
- if( outSize != outSize2 ) {
- throw new IOException("Got inflated "+outSize2+" bytes != expected "+outSize);
+ if( outLen != outSize ) {
+ throw new IOException("Got inflated "+outSize+" bytes != expected "+outLen);
}
} catch(final DataFormatException dfe) {
throw new IOException(dfe);
@@ -101,18 +129,36 @@ public class CustomCompress {
return output;
}
- public static int deflateToStream(final byte[] input, final OutputStream out) throws IOException {
- final byte[] output = new byte[input.length];
- final Deflater deflater = new Deflater();
- deflater.setInput(input, 0, input.length);
+ /**
+ * @param input raw input bytes
+ * @param inOff offset to {@code input}
+ * @param inLen number of {@code input} bytes at {@code inOff}
+ * @param level compression level 0-9 or {@link Deflater#DEFAULT_COMPRESSION}
+ * @param out sink for deflated bytes
+ * @return number of deflated bytes written, not including the header.
+ * @throws IOException if an I/O or deflation exception occurs
+ * @throws ArrayIndexOutOfBoundsException if {@code inOff} and {@code inLen} exceeds {@code input}
+ * @throws IllegalArgumentException if {@code inLen} &le; 0
+ */
+ public static int deflateToStream(final byte[] input, final int inOff, final int inLen,
+ final int level, final OutputStream out) throws IOException, ArrayIndexOutOfBoundsException, IllegalArgumentException {
+ if (inLen <= 0 ) {
+ throw new IllegalArgumentException("Length[input "+inLen+"]");
+ }
+ if (inOff < 0 || input.length < inOff + inLen) {
+ throw new ArrayIndexOutOfBoundsException("input.length "+input.length+", offset "+inOff+", length "+inLen);
+ }
+ final byte[] output = new byte[inLen];
+ final Deflater deflater = new Deflater(level);
+ deflater.setInput(input, inOff, inLen);
deflater.finish();
- final int outSize = deflater.deflate(output, 0, output.length);
+ final int outSize = deflater.deflate(output, 0, inLen);
deflater.end();
{
final DataOutputStream dout = new DataOutputStream(out);
dout.writeInt(CustomCompress.MAGIC);
dout.writeInt(outSize);
- dout.writeInt(input.length);
+ dout.writeInt(inLen);
}
out.write(output, 0, outSize);
return outSize;
diff --git a/src/java/com/jogamp/common/util/bin/exe-windows-i386.defl b/src/java/com/jogamp/common/util/bin/exe-windows-i386.defl
index 9e68aea..d8f1716 100644
--- a/src/java/com/jogamp/common/util/bin/exe-windows-i386.defl
+++ b/src/java/com/jogamp/common/util/bin/exe-windows-i386.defl
Binary files differ
diff --git a/src/java/com/jogamp/common/util/bin/exe-windows-x86_64.defl b/src/java/com/jogamp/common/util/bin/exe-windows-x86_64.defl
index e4b8d8d..be0998b 100644
--- a/src/java/com/jogamp/common/util/bin/exe-windows-x86_64.defl
+++ b/src/java/com/jogamp/common/util/bin/exe-windows-x86_64.defl
Binary files differ