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Re-work TJBUFSIZE() to take into account the level of chrominance subsampling

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git-svn-id: svn+ssh://svn.code.sf.net/p/libjpeg-turbo/code/trunk@668 632fc199-4ca6-4c93-a231-07263d6284db
This commit is contained in:
DRC
2011-07-12 03:17:23 +00:00
parent bd1ef431b3
commit 9b49f0e4c7
41 changed files with 268 additions and 180 deletions
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6
java/TJUnitTest.java
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@@ -682,7 +682,7 @@ public class TJUnitTest {
byte[] dstBuf;
if(yuv == YUVENCODE) dstBuf = new byte[TJ.bufSizeYUV(w, h, subsamp)];
else dstBuf = new byte[TJ.bufSize(w, h)];
else dstBuf = new byte[TJ.bufSize(w, h, subsamp)];
try {
tjc = new TJCompressor();
@@ -726,7 +726,7 @@ public class TJUnitTest {
if(h % 100 == 0)
System.out.format("%04d x %04d\b\b\b\b\b\b\b\b\b\b\b", w, h);
srcBuf = new byte[w * h * 4];
jpegBuf = new byte[TJ.bufSize(w, h)];
jpegBuf = new byte[TJ.bufSize(w, h, TJ.SAMP_444)];
Arrays.fill(srcBuf, (byte)0);
for(i = 0; i < w * h; i++) {
srcBuf[i * 4] = pixels[i % 9][0];
@@ -739,7 +739,7 @@ public class TJUnitTest {
tjc.compress(jpegBuf, 0);
srcBuf = new byte[h * w * 4];
jpegBuf = new byte[TJ.bufSize(h, w)];
jpegBuf = new byte[TJ.bufSize(h, w, TJ.SAMP_444)];
for(i = 0; i < h * w; i++) {
if(i % 2 == 0) srcBuf[i * 4] =
srcBuf[i * 4 + 1] = srcBuf[i * 4 + 2] = (byte)0xFF;

4
java/doc/allclasses-frame.html
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@@ -2,12 +2,12 @@
<!--NewPage-->
<HTML>
<HEAD>
<!-- Generated by javadoc (build 1.6.0_24) on Fri Apr 01 20:49:05 CDT 2011 -->
<!-- Generated by javadoc (build 1.6.0_26) on Mon Jul 11 21:40:35 CDT 2011 -->
<TITLE>
All Classes
</TITLE>
<META NAME="date" CONTENT="2011-04-01">
<META NAME="date" CONTENT="2011-07-11">
<LINK REL ="stylesheet" TYPE="text/css" HREF="stylesheet.css" TITLE="Style">

4
java/doc/allclasses-noframe.html
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@@ -2,12 +2,12 @@
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<HTML>
<HEAD>
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<TITLE>
All Classes
</TITLE>
<META NAME="date" CONTENT="2011-04-01">
<META NAME="date" CONTENT="2011-07-11">
<LINK REL ="stylesheet" TYPE="text/css" HREF="stylesheet.css" TITLE="Style">

4
java/doc/constant-values.html
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@@ -2,12 +2,12 @@
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<HTML>
<HEAD>
<!-- Generated by javadoc (build 1.6.0_24) on Fri Apr 01 20:49:05 CDT 2011 -->
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<TITLE>
Constant Field Values
</TITLE>
<META NAME="date" CONTENT="2011-04-01">
<META NAME="date" CONTENT="2011-07-11">
<LINK REL ="stylesheet" TYPE="text/css" HREF="stylesheet.css" TITLE="Style">

4
java/doc/deprecated-list.html
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@@ -2,12 +2,12 @@
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<HTML>
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<TITLE>
Deprecated List
</TITLE>
<META NAME="date" CONTENT="2011-04-01">
<META NAME="date" CONTENT="2011-07-11">
<LINK REL ="stylesheet" TYPE="text/css" HREF="stylesheet.css" TITLE="Style">

4
java/doc/help-doc.html
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@@ -2,12 +2,12 @@
<!--NewPage-->
<HTML>
<HEAD>
<!-- Generated by javadoc (build 1.6.0_24) on Fri Apr 01 20:49:05 CDT 2011 -->
<!-- Generated by javadoc (build 1.6.0_26) on Mon Jul 11 21:40:35 CDT 2011 -->
<TITLE>
API Help
</TITLE>
<META NAME="date" CONTENT="2011-04-01">
<META NAME="date" CONTENT="2011-07-11">
<LINK REL ="stylesheet" TYPE="text/css" HREF="stylesheet.css" TITLE="Style">

9
java/doc/index-all.html
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@@ -2,12 +2,12 @@
<!--NewPage-->
<HTML>
<HEAD>
<!-- Generated by javadoc (build 1.6.0_24) on Fri Apr 01 20:49:05 CDT 2011 -->
<!-- Generated by javadoc (build 1.6.0_26) on Mon Jul 11 21:40:35 CDT 2011 -->
<TITLE>
Index
</TITLE>
<META NAME="date" CONTENT="2011-04-01">
<META NAME="date" CONTENT="2011-07-11">
<LINK REL ="stylesheet" TYPE="text/css" HREF="./stylesheet.css" TITLE="Style">
@@ -80,10 +80,11 @@ function windowTitle()
<A NAME="_B_"><!-- --></A><H2>
<B>B</B></H2>
<DL>
<DT><A HREF="./org/libjpegturbo/turbojpeg/TJ.html#bufSize(int, int)"><B>bufSize(int, int)</B></A> -
<DT><A HREF="./org/libjpegturbo/turbojpeg/TJ.html#bufSize(int, int, int)"><B>bufSize(int, int, int)</B></A> -
Static method in class org.libjpegturbo.turbojpeg.<A HREF="./org/libjpegturbo/turbojpeg/TJ.html" title="class in org.libjpegturbo.turbojpeg">TJ</A>
<DD>Returns the maximum size of the buffer (in bytes) required to hold a JPEG
image with the given width and height.
image with the given width and height, and level of chrominance
subsampling.
<DT><A HREF="./org/libjpegturbo/turbojpeg/TJ.html#bufSizeYUV(int, int, int)"><B>bufSizeYUV(int, int, int)</B></A> -
Static method in class org.libjpegturbo.turbojpeg.<A HREF="./org/libjpegturbo/turbojpeg/TJ.html" title="class in org.libjpegturbo.turbojpeg">TJ</A>
<DD>Returns the size of the buffer (in bytes) required to hold a YUV planar

2
java/doc/index.html
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@@ -2,7 +2,7 @@
<!--NewPage-->
<HTML>
<HEAD>
<!-- Generated by javadoc on Fri Apr 01 20:49:05 CDT 2011-->
<!-- Generated by javadoc on Mon Jul 11 21:40:35 CDT 2011-->
<TITLE>
Generated Documentation (Untitled)
</TITLE>

28
java/doc/org/libjpegturbo/turbojpeg/TJ.html
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@@ -2,12 +2,12 @@
<!--NewPage-->
<HTML>
<HEAD>
<!-- Generated by javadoc (build 1.6.0_24) on Fri Apr 01 20:49:04 CDT 2011 -->
<!-- Generated by javadoc (build 1.6.0_26) on Mon Jul 11 21:40:35 CDT 2011 -->
<TITLE>
TJ
</TITLE>
<META NAME="date" CONTENT="2011-04-01">
<META NAME="date" CONTENT="2011-07-11">
<LINK REL ="stylesheet" TYPE="text/css" HREF="../../../stylesheet.css" TITLE="Style">
@@ -309,12 +309,14 @@ TurboJPEG utility class (cannot be instantiated)
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static&nbsp;int</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/libjpegturbo/turbojpeg/TJ.html#bufSize(int, int)">bufSize</A></B>(int&nbsp;width,
int&nbsp;height)</CODE>
<TD><CODE><B><A HREF="../../../org/libjpegturbo/turbojpeg/TJ.html#bufSize(int, int, int)">bufSize</A></B>(int&nbsp;width,
int&nbsp;height,
int&nbsp;jpegSubsamp)</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Returns the maximum size of the buffer (in bytes) required to hold a JPEG
image with the given width and height.</TD>
image with the given width and height, and level of chrominance
subsampling.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
@@ -821,20 +823,24 @@ public static int <B>getBlueOffset</B>(int&nbsp;pixelFormat)
</DL>
<HR>
<A NAME="bufSize(int, int)"><!-- --></A><H3>
<A NAME="bufSize(int, int, int)"><!-- --></A><H3>
bufSize</H3>
<PRE>
public static int <B>bufSize</B>(int&nbsp;width,
int&nbsp;height)
int&nbsp;height,
int&nbsp;jpegSubsamp)
throws java.lang.Exception</PRE>
<DL>
<DD>Returns the maximum size of the buffer (in bytes) required to hold a JPEG
image with the given width and height.
image with the given width and height, and level of chrominance
subsampling.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>width</CODE> - the width (in pixels) of the JPEG image<DD><CODE>height</CODE> - the height (in pixels) of the JPEG image
<DT><B>Parameters:</B><DD><CODE>width</CODE> - the width (in pixels) of the JPEG image<DD><CODE>height</CODE> - the height (in pixels) of the JPEG image<DD><CODE>jpegSubsamp</CODE> - the level of chrominance subsampling to be used when
generating the JPEG image (one of <A HREF="../../../org/libjpegturbo/turbojpeg/TJ.html" title="class in org.libjpegturbo.turbojpeg"><CODE>TJ.SAMP_*</CODE></A>)
<DT><B>Returns:</B><DD>the maximum size of the buffer (in bytes) required to hold a JPEG
image with the given width and height
image with the given width and height, and level of chrominance
subsampling
<DT><B>Throws:</B>
<DD><CODE>java.lang.Exception</CODE></DL>
</DD>
@@ -854,7 +860,7 @@ public static int <B>bufSizeYUV</B>(int&nbsp;width,
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>width</CODE> - the width (in pixels) of the YUV image<DD><CODE>height</CODE> - the height (in pixels) of the YUV image<DD><CODE>subsamp</CODE> - the level of chrominance subsampling used in the YUV
image
image (one of <A HREF="../../../org/libjpegturbo/turbojpeg/TJ.html" title="class in org.libjpegturbo.turbojpeg"><CODE>TJ.SAMP_*</CODE></A>)
<DT><B>Returns:</B><DD>the size of the buffer (in bytes) required to hold a YUV planar
image with the given width, height, and level of chrominance subsampling
<DT><B>Throws:</B>

8
java/doc/org/libjpegturbo/turbojpeg/TJCompressor.html
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@@ -2,12 +2,12 @@
<!--NewPage-->
<HTML>
<HEAD>
<!-- Generated by javadoc (build 1.6.0_24) on Fri Apr 01 20:49:05 CDT 2011 -->
<!-- Generated by javadoc (build 1.6.0_26) on Mon Jul 11 21:40:35 CDT 2011 -->
<TITLE>
TJCompressor
</TITLE>
<META NAME="date" CONTENT="2011-04-01">
<META NAME="date" CONTENT="2011-07-11">
<LINK REL ="stylesheet" TYPE="text/css" HREF="../../../stylesheet.css" TITLE="Style">
@@ -421,7 +421,7 @@ public void <B>compress</B>(byte[]&nbsp;dstBuf,
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>dstBuf</CODE> - buffer which will receive the JPEG image. Use
<A HREF="../../../org/libjpegturbo/turbojpeg/TJ.html#bufSize(int, int)"><CODE>TJ.bufSize(int, int)</CODE></A> to determine the maximum size for this buffer based on
<A HREF="../../../org/libjpegturbo/turbojpeg/TJ.html#bufSize(int, int, int)"><CODE>TJ.bufSize(int, int, int)</CODE></A> to determine the maximum size for this buffer based on
the image width and height.<DD><CODE>flags</CODE> - the bitwise OR of one or more of <A HREF="../../../org/libjpegturbo/turbojpeg/TJ.html" title="class in org.libjpegturbo.turbojpeg"><CODE>TJ.FLAG_*</CODE></A>
<DT><B>Throws:</B>
<DD><CODE>java.lang.Exception</CODE></DL>
@@ -462,7 +462,7 @@ public void <B>compress</B>(java.awt.image.BufferedImage&nbsp;srcImage,
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>srcImage</CODE> - a <code>BufferedImage</code> instance containing RGB or
grayscale pixels to be compressed<DD><CODE>dstBuf</CODE> - buffer which will receive the JPEG image. Use
<A HREF="../../../org/libjpegturbo/turbojpeg/TJ.html#bufSize(int, int)"><CODE>TJ.bufSize(int, int)</CODE></A> to determine the maximum size for this buffer based on
<A HREF="../../../org/libjpegturbo/turbojpeg/TJ.html#bufSize(int, int, int)"><CODE>TJ.bufSize(int, int, int)</CODE></A> to determine the maximum size for this buffer based on
the image width and height.<DD><CODE>flags</CODE> - the bitwise OR of one or more of <A HREF="../../../org/libjpegturbo/turbojpeg/TJ.html" title="class in org.libjpegturbo.turbojpeg"><CODE>TJ.FLAG_*</CODE></A>
<DT><B>Throws:</B>
<DD><CODE>java.lang.Exception</CODE></DL>

4
java/doc/org/libjpegturbo/turbojpeg/TJDecompressor.html
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@@ -2,12 +2,12 @@
<!--NewPage-->
<HTML>
<HEAD>
<!-- Generated by javadoc (build 1.6.0_24) on Fri Apr 01 20:49:05 CDT 2011 -->
<!-- Generated by javadoc (build 1.6.0_26) on Mon Jul 11 21:40:35 CDT 2011 -->
<TITLE>
TJDecompressor
</TITLE>
<META NAME="date" CONTENT="2011-04-01">
<META NAME="date" CONTENT="2011-07-11">
<LINK REL ="stylesheet" TYPE="text/css" HREF="../../../stylesheet.css" TITLE="Style">

4
java/doc/org/libjpegturbo/turbojpeg/TJScalingFactor.html
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@@ -2,12 +2,12 @@
<!--NewPage-->
<HTML>
<HEAD>
<!-- Generated by javadoc (build 1.6.0_24) on Fri Apr 01 20:49:05 CDT 2011 -->
<!-- Generated by javadoc (build 1.6.0_26) on Mon Jul 11 21:40:35 CDT 2011 -->
<TITLE>
TJScalingFactor
</TITLE>
<META NAME="date" CONTENT="2011-04-01">
<META NAME="date" CONTENT="2011-07-11">
<LINK REL ="stylesheet" TYPE="text/css" HREF="../../../stylesheet.css" TITLE="Style">

4
java/doc/org/libjpegturbo/turbojpeg/TJTransform.html
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@@ -2,12 +2,12 @@
<!--NewPage-->
<HTML>
<HEAD>
<!-- Generated by javadoc (build 1.6.0_24) on Fri Apr 01 20:49:05 CDT 2011 -->
<!-- Generated by javadoc (build 1.6.0_26) on Mon Jul 11 21:40:35 CDT 2011 -->
<TITLE>
TJTransform
</TITLE>
<META NAME="date" CONTENT="2011-04-01">
<META NAME="date" CONTENT="2011-07-11">
<LINK REL ="stylesheet" TYPE="text/css" HREF="../../../stylesheet.css" TITLE="Style">

6
java/doc/org/libjpegturbo/turbojpeg/TJTransformer.html
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@@ -2,12 +2,12 @@
<!--NewPage-->
<HTML>
<HEAD>
<!-- Generated by javadoc (build 1.6.0_24) on Fri Apr 01 20:49:05 CDT 2011 -->
<!-- Generated by javadoc (build 1.6.0_26) on Mon Jul 11 21:40:35 CDT 2011 -->
<TITLE>
TJTransformer
</TITLE>
<META NAME="date" CONTENT="2011-04-01">
<META NAME="date" CONTENT="2011-07-11">
<LINK REL ="stylesheet" TYPE="text/css" HREF="../../../stylesheet.css" TITLE="Style">
@@ -313,7 +313,7 @@ public void <B>transform</B>(byte[][]&nbsp;dstBufs,
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>dstBufs</CODE> - an array of image buffers. <code>dstbufs[i]</code> will
receive a JPEG image that has been transformed using the parameters in
<code>transforms[i]</code>. Use <A HREF="../../../org/libjpegturbo/turbojpeg/TJ.html#bufSize(int, int)"><CODE>TJ.bufSize(int, int)</CODE></A> to determine the
<code>transforms[i]</code>. Use <A HREF="../../../org/libjpegturbo/turbojpeg/TJ.html#bufSize(int, int, int)"><CODE>TJ.bufSize(int, int, int)</CODE></A> to determine the
maximum size for each buffer based on the cropped width and height.<DD><CODE>transforms</CODE> - an array of <A HREF="../../../org/libjpegturbo/turbojpeg/TJTransform.html" title="class in org.libjpegturbo.turbojpeg"><CODE>TJTransform</CODE></A> instances, each of
which specifies the transform parameters and/or cropping region for the
corresponding transformed output image<DD><CODE>flags</CODE> - the bitwise OR of one or more of <A HREF="../../../org/libjpegturbo/turbojpeg/TJ.html" title="class in org.libjpegturbo.turbojpeg"><CODE>TJ.FLAG_*</CODE></A>

4
java/doc/org/libjpegturbo/turbojpeg/package-frame.html
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@@ -2,12 +2,12 @@
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<HTML>
<HEAD>
<!-- Generated by javadoc (build 1.6.0_24) on Fri Apr 01 20:49:05 CDT 2011 -->
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<TITLE>
org.libjpegturbo.turbojpeg
</TITLE>
<META NAME="date" CONTENT="2011-04-01">
<META NAME="date" CONTENT="2011-07-11">
<LINK REL ="stylesheet" TYPE="text/css" HREF="../../../stylesheet.css" TITLE="Style">

4
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@@ -2,12 +2,12 @@
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<HTML>
<HEAD>
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<TITLE>
org.libjpegturbo.turbojpeg
</TITLE>
<META NAME="date" CONTENT="2011-04-01">
<META NAME="date" CONTENT="2011-07-11">
<LINK REL ="stylesheet" TYPE="text/css" HREF="../../../stylesheet.css" TITLE="Style">

4
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@@ -2,12 +2,12 @@
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<HTML>
<HEAD>
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<!-- Generated by javadoc (build 1.6.0_26) on Mon Jul 11 21:40:35 CDT 2011 -->
<TITLE>
org.libjpegturbo.turbojpeg Class Hierarchy
</TITLE>
<META NAME="date" CONTENT="2011-04-01">
<META NAME="date" CONTENT="2011-07-11">
<LINK REL ="stylesheet" TYPE="text/css" HREF="../../../stylesheet.css" TITLE="Style">

4
java/doc/overview-tree.html
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@@ -2,12 +2,12 @@
<!--NewPage-->
<HTML>
<HEAD>
<!-- Generated by javadoc (build 1.6.0_24) on Fri Apr 01 20:49:05 CDT 2011 -->
<!-- Generated by javadoc (build 1.6.0_26) on Mon Jul 11 21:40:35 CDT 2011 -->
<TITLE>
Class Hierarchy
</TITLE>
<META NAME="date" CONTENT="2011-04-01">
<META NAME="date" CONTENT="2011-07-11">
<LINK REL ="stylesheet" TYPE="text/css" HREF="stylesheet.css" TITLE="Style">

4
java/doc/serialized-form.html
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@@ -2,12 +2,12 @@
<!--NewPage-->
<HTML>
<HEAD>
<!-- Generated by javadoc (build 1.6.0_24) on Fri Apr 01 20:49:05 CDT 2011 -->
<!-- Generated by javadoc (build 1.6.0_26) on Mon Jul 11 21:40:35 CDT 2011 -->
<TITLE>
Serialized Form
</TITLE>
<META NAME="date" CONTENT="2011-04-01">
<META NAME="date" CONTENT="2011-07-11">
<LINK REL ="stylesheet" TYPE="text/css" HREF="stylesheet.css" TITLE="Style">

13
java/org/libjpegturbo/turbojpeg/TJ.java
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@@ -271,16 +271,21 @@ final public class TJ {
/**
* Returns the maximum size of the buffer (in bytes) required to hold a JPEG
* image with the given width and height.
* image with the given width and height, and level of chrominance
* subsampling.
*
* @param width the width (in pixels) of the JPEG image
*
* @param height the height (in pixels) of the JPEG image
*
* @param jpegSubsamp the level of chrominance subsampling to be used when
* generating the JPEG image (one of {@link TJ TJ.SAMP_*})
*
* @return the maximum size of the buffer (in bytes) required to hold a JPEG
* image with the given width and height
* image with the given width and height, and level of chrominance
* subsampling
*/
public native static int bufSize(int width, int height)
public native static int bufSize(int width, int height, int jpegSubsamp)
throws Exception;
/**
@@ -292,7 +297,7 @@ final public class TJ {
* @param height the height (in pixels) of the YUV image
*
* @param subsamp the level of chrominance subsampling used in the YUV
* image
* image (one of {@link TJ TJ.SAMP_*})
*
* @return the size of the buffer (in bytes) required to hold a YUV planar
* image with the given width, height, and level of chrominance subsampling

4
java/org/libjpegturbo/turbojpeg/TJCompressor.java
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@@ -160,7 +160,7 @@ public class TJCompressor {
public byte[] compress(int flags) throws Exception {
if(srcWidth < 1 || srcHeight < 1)
throw new Exception(NO_ASSOC_ERROR);
byte[] buf = new byte[TJ.bufSize(srcWidth, srcHeight)];
byte[] buf = new byte[TJ.bufSize(srcWidth, srcHeight, subsamp)];
compress(buf, flags);
return buf;
}
@@ -249,7 +249,7 @@ public class TJCompressor {
public byte[] compress(BufferedImage srcImage, int flags) throws Exception {
int width = srcImage.getWidth();
int height = srcImage.getHeight();
byte[] buf = new byte[TJ.bufSize(width, height)];
byte[] buf = new byte[TJ.bufSize(width, height, subsamp)];
compress(srcImage, buf, flags);
return buf;
}

2
java/org/libjpegturbo/turbojpeg/TJTransformer.java
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@@ -123,7 +123,7 @@ public class TJTransformer extends TJDecompressor {
if(transforms[i].width != 0) w = transforms[i].width;
if(transforms[i].height != 0) h = transforms[i].height;
}
dstBufs[i] = new byte[TJ.bufSize(w, h)];
dstBufs[i] = new byte[TJ.bufSize(w, h, jpegSubsamp)];
}
TJDecompressor[] tjd = new TJDecompressor[transforms.length];
transform(dstBufs, transforms, flags);

6
java/org_libjpegturbo_turbojpeg_TJ.h
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@@ -50,10 +50,10 @@ extern "C" {
/*
* Class: org_libjpegturbo_turbojpeg_TJ
* Method: bufSize
* Signature: (II)I
* Signature: (III)I
*/
JNIEXPORT jint JNICALL Java_org_libjpegturbo_turbojpeg_TJ_bufSize
(JNIEnv *, jclass, jint, jint);
(JNIEnv *, jclass, jint, jint, jint);
/*
* Class: org_libjpegturbo_turbojpeg_TJ
@@ -66,7 +66,7 @@ JNIEXPORT jint JNICALL Java_org_libjpegturbo_turbojpeg_TJ_bufSizeYUV
/*
* Class: org_libjpegturbo_turbojpeg_TJ
* Method: getScalingFactors
* Signature: ()[Lorg/libjpegturbo/turbojpeg/TJ/ScalingFactor;
* Signature: ()[Lorg/libjpegturbo/turbojpeg/TJScalingFactor;
*/
JNIEXPORT jobjectArray JNICALL Java_org_libjpegturbo_turbojpeg_TJ_getScalingFactors
(JNIEnv *, jclass);