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Add a Java version of TJBench and extend the TurboJPEG Java API to support it (this involved adding a polymorphic method in TJCompressor that accepts x and y offsets into a larger buffer, similar to the previous modification that had been done to TJDecompressor.)

Browse Source 
git-svn-id: svn+ssh://svn.code.sf.net/p/libjpeg-turbo/code/trunk@862 632fc199-4ca6-4c93-a231-07263d6284db
This commit is contained in:
DRC
2012-09-24 02:27:55 +00:00
parent 3f0ffbc4b7
commit e0c15701d4
31 changed files with 1405 additions and 121 deletions
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5
ChangeLog.txt
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@@ -12,8 +12,9 @@ function is provided to maintain backward compatibility. However, certain
Linux distro maintainers will blindly reject any library that is not versioned,
so this was an attempt to make them happy.
[3] Extended the TurboJPEG Java API so that it can be used to decompress a
JPEG image into an arbitrary position in a large output buffer.
[3] Extended the TurboJPEG Java API so that it can be used to compress a JPEG
image from and decompress a JPEG image to an arbitrary position in a large
image buffer.
[4] The tjDecompressToYUV() function now supports the TJFLAG_FASTDCT flag.

2
Makefile.am
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@@ -234,7 +234,7 @@ testclean:
tjtest:
sh ./tjbenchtest
if WITH_JAVA
sh ./tjexampletest
sh ./tjbenchtest.java
endif

1
configure.ac
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@@ -367,6 +367,7 @@ AC_CONFIG_FILES([pkgscripts/Description.plist:release/Description.plist.in])
AC_CONFIG_FILES([pkgscripts/Info.plist:release/Info.plist.in])
AC_CONFIG_FILES([pkgscripts/uninstall:release/uninstall.in])
AC_CONFIG_FILES([tjbenchtest])
AC_CONFIG_FILES([tjbenchtest.java])
AC_CONFIG_FILES([tjexampletest])
AC_CONFIG_FILES([libjpeg.map])
AC_CONFIG_FILES([Makefile simd/Makefile])

3
java/CMakeLists.txt
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@@ -9,7 +9,8 @@ set(JAVA_CLASSNAMES org/libjpegturbo/turbojpeg/TJ
org/libjpegturbo/turbojpeg/TJTransform
org/libjpegturbo/turbojpeg/TJTransformer
TJUnitTest
TJExample)
TJExample
TJBench)
if(MSVC_IDE)
set(OBJDIR "${CMAKE_CURRENT_BINARY_DIR}/$(OutDir)")

6
java/Makefile.am
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@@ -9,7 +9,8 @@ JAVASOURCES = org/libjpegturbo/turbojpeg/TJ.java \
org/libjpegturbo/turbojpeg/TJTransform.java \
org/libjpegturbo/turbojpeg/TJTransformer.java \
TJExample.java \
TJUnitTest.java
TJUnitTest.java \
TJBench.java
JNIHEADERS = org_libjpegturbo_turbojpeg_TJ.h \
org_libjpegturbo_turbojpeg_TJCompressor.h \
@@ -29,7 +30,8 @@ JAVA_CLASSES = org/libjpegturbo/turbojpeg/TJ.class \
org/libjpegturbo/turbojpeg/TJTransform.class \
org/libjpegturbo/turbojpeg/TJTransformer.class \
TJExample.class \
TJUnitTest.class
TJUnitTest.class \
TJBench.class
all: all-am turbojpeg.jar

863
java/TJBench.java Normal file
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@@ -0,0 +1,863 @@
/*
* Copyright (C)2009-2012 D. R. Commander. All Rights Reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* - Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* - Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* - Neither the name of the libjpeg-turbo Project nor the names of its
* contributors may be used to endorse or promote products derived from this
* software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS",
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
import java.io.*;
import java.awt.image.*;
import javax.imageio.*;
import java.util.*;
import org.libjpegturbo.turbojpeg.*;
class TJBench
{
static final int YUVENCODE = 1;
static final int YUVDECODE = 2;
static int flags = 0, yuv = 0, quiet = 0, pf = TJ.PF_BGR;
static boolean decompOnly, doTile;
static final String pixFormatStr[] = {
"RGB", "BGR", "RGBX", "BGRX", "XBGR", "XRGB", "GRAY"
};
static final String subNameLong[] = {
"4:4:4", "4:2:2", "4:2:0", "GRAY", "4:4:0"
};
static final String subName[] = {
"444", "422", "420", "GRAY", "440"
};
static TJScalingFactor sf;
static int nsf = 0;
static int xformOp = TJTransform.OP_NONE, xformOpt = 0;
static double benchTime = 5.0;
static final double getTime()
{
return (double)System.nanoTime() / 1.0e9;
}
static String sigFig(double val, int figs)
{
String format;
int digitsAfterDecimal = figs - (int)Math.ceil(Math.log10(Math.abs(val)));
if (digitsAfterDecimal < 1)
format = new String("%.0f");
else
format = new String("%." + digitsAfterDecimal + "f");
return String.format(format, val);
}
static byte[] loadImage(String fileName, int[] w, int[] h, int pf)
throws Exception
{
BufferedImage img = ImageIO.read(new File(fileName));
if (img == null)
throw new Exception("Could not read " + fileName);
w[0] = img.getWidth();
h[0] = img.getHeight();
int rgb[] = img.getRGB(0, 0, w[0], h[0], null, 0, w[0]);
int ps = TJ.getPixelSize(pf);
int rindex = TJ.getRedOffset(pf);
int gindex = TJ.getGreenOffset(pf);
int bindex = TJ.getBlueOffset(pf);
byte[] dstBuf = new byte[w[0] * h[0] * ps];
int pixels = w[0] * h[0], dstPtr = 0, rgbPtr = 0;
while (pixels-- > 0) {
dstBuf[dstPtr + rindex] = (byte)((rgb[rgbPtr] >> 16) & 0xff);
dstBuf[dstPtr + gindex] = (byte)((rgb[rgbPtr] >> 8) & 0xff);
dstBuf[dstPtr + bindex] = (byte)(rgb[rgbPtr] & 0xff);
dstPtr += ps;
rgbPtr++;
}
return dstBuf;
}
static void saveImage(String fileName, byte[] srcBuf, int w, int h, int pf)
throws Exception
{
BufferedImage img = new BufferedImage(w, h, BufferedImage.TYPE_INT_RGB);
int pixels = w * h, srcPtr = 0;
int ps = TJ.getPixelSize(pf);
int rindex = TJ.getRedOffset(pf);
int gindex = TJ.getGreenOffset(pf);
int bindex = TJ.getBlueOffset(pf);
for (int y = 0; y < h; y++) {
for (int x = 0; x < w; x++, srcPtr += ps) {
int pixel = (srcBuf[srcPtr + rindex] & 0xff) << 16 |
(srcBuf[srcPtr + gindex] & 0xff) << 8 |
(srcBuf[srcPtr + bindex] & 0xff);
img.setRGB(x, y, pixel);
}
}
ImageIO.write(img, "bmp", new File(fileName));
}
/* Decompression test */
static void decompTest(byte[] srcBuf, byte[][] jpegBuf, int[] jpegSize,
byte[] dstBuf, int w, int h, int subsamp,
int jpegQual, String fileName, int tilew, int tileh)
throws Exception
{
String qualStr = new String(""), sizeStr, tempStr;
TJDecompressor tjd;
double start, elapsed;
int ps = TJ.getPixelSize(pf), i;
int yuvSize = TJ.bufSizeYUV(w, h, subsamp), bufsize;
int scaledw = (yuv == YUVDECODE) ? w : sf.getScaled(w);
int scaledh = (yuv == YUVDECODE) ? h : sf.getScaled(h);
int pitch = scaledw * ps;
if (jpegQual > 0)
qualStr = new String("_Q" + jpegQual);
tjd = new TJDecompressor();
int bufSize = (yuv == YUVDECODE ? yuvSize : pitch * scaledh);
if (dstBuf == null)
dstBuf = new byte[bufSize];
/* Set the destination buffer to gray so we know whether the decompressor
attempted to write to it */
Arrays.fill(dstBuf, (byte)127);
/* Execute once to preload cache */
tjd.setJPEGImage(jpegBuf[0], jpegSize[0]);
if (yuv == YUVDECODE)
tjd.decompressToYUV(dstBuf, flags);
else
tjd.decompress(dstBuf, scaledw, pitch, scaledh, pf, flags);
/* Benchmark */
for (i = 0, start = getTime(); (elapsed = getTime() - start) < benchTime;
i++) {
int tile=0;
if (yuv == YUVDECODE)
tjd.decompressToYUV(dstBuf, flags);
else {
for (int y = 0; y < h; y += tileh) {
for (int x = 0; x < w; x += tilew, tile++) {
int width = doTile ? Math.min(tilew, w - x) : scaledw;
int height = doTile ? Math.min(tileh, h - y) : scaledh;
tjd.setJPEGImage(jpegBuf[tile], jpegSize[tile]);
tjd.decompress(dstBuf, x, y, width, pitch, height, pf, flags);
}
}
}
}
tjd = null;
System.gc();
if (quiet != 0)
System.out.println(
sigFig((double)(w * h) / 1000000. * (double)i / elapsed, 4));
else {
System.out.format("D--> Frame rate: %f fps\n",
(double)i / elapsed);
System.out.format(" Dest. throughput: %f Megapixels/sec\n",
(double)(w * h) / 1000000. * (double)i / elapsed);
}
if (yuv == YUVDECODE) {
tempStr = fileName + "_" + subName[subsamp] + qualStr + ".yuv";
FileOutputStream fos = new FileOutputStream(tempStr);
fos.write(dstBuf, 0, yuvSize);
fos.close();
} else {
if (sf.getNum() != 1 || sf.getDenom() != 1)
sizeStr = new String(sf.getNum() + "_" + sf.getDenom());
else if (tilew != w || tileh != h)
sizeStr = new String(tilew + "x" + tileh);
else
sizeStr = new String("full");
if (decompOnly)
tempStr = new String(fileName + "_" + sizeStr + ".bmp");
else
tempStr = new String(fileName + "_" + subName[subsamp] + qualStr +
"_" + sizeStr + ".bmp");
saveImage(tempStr, dstBuf, scaledw, scaledh, pf);
int ndx = tempStr.indexOf('.');
tempStr = new String(tempStr.substring(0, ndx) + "-err.bmp");
if (srcBuf != null && sf.getNum() == 1 && sf.getDenom() == 1) {
if (quiet == 0)
System.out.println("Compression error written to " + tempStr + ".");
if (subsamp == TJ.SAMP_GRAY) {
for (int y = 0, index = 0; y < h; y++, index += pitch) {
for (int x = 0, index2 = index; x < w; x++, index2 += ps) {
int rindex = index2 + TJ.getRedOffset(pf);
int gindex = index2 + TJ.getGreenOffset(pf);
int bindex = index2 + TJ.getBlueOffset(pf);
int lum = (int)((double)(srcBuf[rindex] & 0xff) * 0.299 +
(double)(srcBuf[gindex] & 0xff) * 0.587 +
(double)(srcBuf[bindex] & 0xff) * 0.114 + 0.5);
if (lum > 255) lum = 255; if (lum < 0) lum = 0;
dstBuf[rindex] = (byte)Math.abs((dstBuf[rindex] & 0xff) - lum);
dstBuf[gindex] = (byte)Math.abs((dstBuf[gindex] & 0xff) - lum);
dstBuf[bindex] = (byte)Math.abs((dstBuf[bindex] & 0xff) - lum);
}
}
} else {
for (int y = 0; y < h; y++)
for (int x = 0; x < w * ps; x++)
dstBuf[pitch * y + x] =
(byte)Math.abs((dstBuf[pitch * y + x] & 0xff) -
(srcBuf[pitch * y + x] & 0xff));
}
saveImage(tempStr, dstBuf, w, h, pf);
}
}
}
static void doTestYUV(byte[] srcBuf, int w, int h, int subsamp,
String fileName) throws Exception
{
TJCompressor tjc;
byte[] dstBuf;
double start, elapsed;
int ps = TJ.getPixelSize(pf), i;
int yuvSize = 0;
yuvSize = TJ.bufSizeYUV(w, h, subsamp);
dstBuf = new byte[yuvSize];
if (quiet == 0)
System.out.format(">>>>> %s (%s) <--> YUV %s <<<<<\n",
pixFormatStr[pf],
(flags & TJ.FLAG_BOTTOMUP) != 0 ? "Bottom-up" : "Top-down",
subNameLong[subsamp]);
if (quiet == 1)
System.out.format("%s\t%s\t%s\tN/A\t", pixFormatStr[pf],
(flags & TJ.FLAG_BOTTOMUP) != 0 ? "BU" : "TD",
subNameLong[subsamp]);
tjc = new TJCompressor(srcBuf, w, 0, h, pf);
tjc.setSubsamp(subsamp);
/* Execute once to preload cache */
tjc.encodeYUV(dstBuf, flags);
/* Benchmark */
for (i = 0, start = getTime();
(elapsed = getTime() - start) < benchTime; i++)
tjc.encodeYUV(dstBuf, flags);
if (quiet == 1)
System.out.format("%-4d %-4d\t", w, h);
if (quiet != 0) {
System.out.format("%s%c%s%c",
sigFig((double)(w * h) / 1000000. * (double) i / elapsed, 4),
quiet == 2 ? '\n' : '\t',
sigFig((double)(w * h * ps) / (double)yuvSize, 4),
quiet == 2 ? '\n' : '\t');
} else {
System.out.format("\n%s size: %d x %d\n", "Image", w, h);
System.out.format("C--> Frame rate: %f fps\n",
(double)i / elapsed);
System.out.format(" Output image size: %d bytes\n", yuvSize);
System.out.format(" Compression ratio: %f:1\n",
(double)(w * h * ps) / (double)yuvSize);
System.out.format(" Source throughput: %f Megapixels/sec\n",
(double)(w * h) / 1000000. * (double)i / elapsed);
System.out.format(" Output bit stream: %f Megabits/sec\n",
(double)yuvSize * 8. / 1000000. * (double)i / elapsed);
}
String tempStr = fileName + "_" + subName[subsamp] + ".yuv";
FileOutputStream fos = new FileOutputStream(tempStr);
fos.write(dstBuf, 0, yuvSize);
fos.close();
if (quiet == 0)
System.out.println("Reference image written to " + tempStr);
}
static void doTest(byte[] srcBuf, int w, int h, int subsamp, int jpegQual,
String fileName) throws Exception
{
TJCompressor tjc;
byte[] tmpBuf;
byte[][] jpegBuf;
int[] jpegSize;
double start, elapsed;
int totalJpegSize = 0, tilew, tileh, i;
int ps = TJ.getPixelSize(pf), ntilesw = 1, ntilesh = 1, pitch = w * ps;
if (yuv == YUVENCODE) {
doTestYUV(srcBuf, w, h, subsamp, fileName);
return;
}
tmpBuf = new byte[pitch * h];
if (quiet == 0)
System.out.format(">>>>> %s (%s) <--> JPEG %s Q%d <<<<<\n",
pixFormatStr[pf],
(flags & TJ.FLAG_BOTTOMUP) != 0 ? "Bottom-up" : "Top-down",
subNameLong[subsamp], jpegQual);
tjc = new TJCompressor();
for (tilew = doTile ? 8 : w, tileh = doTile ? 8 : h; ;
tilew *= 2, tileh *= 2) {
if (tilew > w)
tilew = w;
if (tileh > h)
tileh = h;
ntilesw = (w + tilew - 1) / tilew;
ntilesh = (h + tileh - 1) / tileh;
jpegBuf = new byte[ntilesw * ntilesh][TJ.bufSize(tilew, tileh, subsamp)];
jpegSize = new int[ntilesw * ntilesh];
/* Compression test */
if (quiet == 1)
System.out.format("%s\t%s\t%s\t%d\t", pixFormatStr[pf],
(flags & TJ.FLAG_BOTTOMUP) != 0 ? "BU" : "TD",
subNameLong[subsamp], jpegQual);
for (i = 0; i < h; i++)
System.arraycopy(srcBuf, w * ps * i, tmpBuf, pitch * i, w * ps);
tjc.setSourceImage(srcBuf, tilew, pitch, tileh, pf);
tjc.setJPEGQuality(jpegQual);
tjc.setSubsamp(subsamp);
/* Execute once to preload cache */
tjc.compress(jpegBuf[0], flags);
/* Benchmark */
for (i = 0, start = getTime();
(elapsed = getTime() - start) < benchTime; i++) {
int tile = 0;
totalJpegSize = 0;
for (int y = 0; y < h; y += tileh) {
for (int x = 0; x < w; x += tilew, tile++) {
int width = Math.min(tilew, w - x);
int height = Math.min(tileh, h - y);
tjc.setSourceImage(srcBuf, x, y, width, pitch, height, pf);
tjc.compress(jpegBuf[tile], flags);
jpegSize[tile] = tjc.getCompressedSize();
totalJpegSize += jpegSize[tile];
}
}
}
if (quiet == 1)
System.out.format("%-4d %-4d\t", tilew, tileh);
if (quiet != 0) {
System.out.format("%s%c%s%c",
sigFig((double)(w * h) / 1000000. * (double) i / elapsed, 4),
quiet == 2 ? '\n' : '\t',
sigFig((double)(w * h * ps) / (double)totalJpegSize, 4),
quiet == 2 ? '\n' : '\t');
} else {
System.out.format("\n%s size: %d x %d\n", doTile ? "Tile" : "Image",
tilew, tileh);
System.out.format("C--> Frame rate: %f fps\n",
(double)i / elapsed);
System.out.format(" Output image size: %d bytes\n",
totalJpegSize);
System.out.format(" Compression ratio: %f:1\n",
(double)(w * h * ps) / (double)totalJpegSize);
System.out.format(" Source throughput: %f Megapixels/sec\n",
(double)(w * h) / 1000000. * (double)i / elapsed);
System.out.format(" Output bit stream: %f Megabits/sec\n",
(double)totalJpegSize * 8. / 1000000. * (double)i / elapsed);
}
if (tilew == w && tileh == h) {
String tempStr = fileName + "_" + subName[subsamp] + "_" + "Q" +
jpegQual + ".jpg";
FileOutputStream fos = new FileOutputStream(tempStr);
fos.write(jpegBuf[0], 0, jpegSize[0]);
fos.close();
if (quiet == 0)
System.out.println("Reference image written to " + tempStr);
}
/* Decompression test */
decompTest(srcBuf, jpegBuf, jpegSize, tmpBuf, w, h, subsamp, jpegQual,
fileName, tilew, tileh);
for (i = 0; i < ntilesw * ntilesh; i++)
jpegBuf[i] = null;
jpegBuf = null; jpegSize = null;
System.gc();
if (tilew == w && tileh == h) break;
}
}
static void doDecompTest(String fileName) throws Exception
{
TJTransformer tjt;
byte[][] jpegBuf;
byte[] srcBuf;
int[] jpegSize;
int totalJpegSize;
int w = 0, h = 0, subsamp = -1, _w, _h, _tilew, _tileh,
_ntilesw, _ntilesh, _subsamp, x, y;
int ntilesw = 1, ntilesh = 1;
double start, elapsed;
int ps = TJ.getPixelSize(pf), tile;
FileInputStream fis = new FileInputStream(fileName);
int srcSize = (int)fis.getChannel().size();
srcBuf = new byte[srcSize];
fis.read(srcBuf, 0, srcSize);
fis.close();
int index = fileName.indexOf('.');
if (index >= 0)
fileName = new String(fileName.substring(0, index));
tjt = new TJTransformer();
tjt.setJPEGImage(srcBuf, srcSize);
w = tjt.getWidth();
h = tjt.getHeight();
subsamp = tjt.getSubsamp();
if (quiet == 1) {
System.out.println("All performance values in Mpixels/sec\n");
System.out.format("Bitmap\tBitmap\tJPEG\t%s %s \tXform\tComp\tDecomp\n",
(doTile ? "Tile " : "Image"),
(doTile ? "Tile " : "Image"));
System.out.println("Format\tOrder\tSubsamp\tWidth Height\tPerf \tRatio\tPerf\n");
} else if (quiet == 0) {
System.out.format(">>>>> JPEG %s --> %s (%s) <<<<<",
subNameLong[subsamp], pixFormatStr[pf],
(flags & TJ.FLAG_BOTTOMUP) != 0 ? "Bottom-up" : "Top-down");
}
for (int tilew = doTile ? 16 : w, tileh = doTile ? 16 : h; ;
tilew *= 2, tileh *= 2) {
if (tilew > w)
tilew = w;
if (tileh > h)
tileh = h;
ntilesw = (w + tilew - 1) / tilew;
ntilesh = (h + tileh - 1) / tileh;
_w = w; _h = h; _tilew = tilew; _tileh = tileh;
if (quiet == 0) {
System.out.format("\n%s size: %d x %d", (doTile ? "Tile" : "Image"),
_tilew, _tileh);
if (sf.getNum() != 1 || sf.getDenom() != 1)
System.out.format(" --> %d x %d", sf.getScaled(_w),
sf.getScaled(_h));
System.out.println("");
} else if (quiet==1) {
System.out.format("%s\t%s\t%s\t", pixFormatStr[pf],
(flags & TJ.FLAG_BOTTOMUP) != 0 ? "BU" : "TD",
subNameLong[subsamp]);
System.out.format("%-4d %-4d\t", tilew, tileh);
}
_subsamp = subsamp;
if (doTile || xformOp != TJTransform.OP_NONE || xformOpt != 0) {
if (xformOp == TJTransform.OP_TRANSPOSE ||
xformOp == TJTransform.OP_TRANSVERSE ||
xformOp == TJTransform.OP_ROT90 ||
xformOp == TJTransform.OP_ROT270) {
_w = h; _h = w; _tilew = tileh; _tileh = tilew;
}
if ((xformOpt & TJTransform.OPT_GRAY) != 0)
_subsamp = TJ.SAMP_GRAY;
if (xformOp == TJTransform.OP_HFLIP ||
xformOp == TJTransform.OP_ROT180)
_w = _w - (_w % TJ.getMCUWidth(_subsamp));
if (xformOp == TJTransform.OP_VFLIP ||
xformOp == TJTransform.OP_ROT180)
_h = _h - (_h % TJ.getMCUHeight(_subsamp));
if (xformOp == TJTransform.OP_TRANSVERSE ||
xformOp == TJTransform.OP_ROT90)
_w = _w - (_w % TJ.getMCUHeight(_subsamp));
if (xformOp == TJTransform.OP_TRANSVERSE ||
xformOp == TJTransform.OP_ROT270)
_h = _h - (_h % TJ.getMCUWidth(_subsamp));
_ntilesw = (_w + _tilew - 1) / _tilew;
_ntilesh = (_h + _tileh - 1) / _tileh;
TJTransform t[] = new TJTransform[_ntilesw * _ntilesh];
jpegBuf = new byte[_ntilesw * _ntilesh][TJ.bufSize(_tilew, _tileh, subsamp)];
for (y = 0, tile = 0; y < _h; y += _tileh) {
for (x = 0; x < _w; x += _tilew, tile++) {
t[tile] = new TJTransform();
t[tile].width = Math.min(_tilew, _w - x);
t[tile].height = Math.min(_tileh, _h - y);
t[tile].x = x;
t[tile].y = y;
t[tile].op = xformOp;
t[tile].options = xformOpt | TJTransform.OPT_TRIM;
if ((t[tile].options & TJTransform.OPT_NOOUTPUT) != 0 &&
jpegBuf[tile] != null)
jpegBuf[tile] = null;
}
}
start = getTime();
tjt.transform(jpegBuf, t, flags);
jpegSize = tjt.getTransformedSizes();
elapsed = getTime() - start;
t = null;
for (tile = 0, totalJpegSize = 0; tile < _ntilesw * _ntilesh; tile++)
totalJpegSize += jpegSize[tile];
if (quiet != 0) {
System.out.format("%s%c%s%c",
sigFig((double)(w * h) / 1000000. / elapsed, 4),
quiet == 2 ? '\n' : '\t',
sigFig((double)(w * h * ps) / (double)totalJpegSize, 4),
quiet == 2 ? '\n' : '\t');
} else if (quiet == 0) {
System.out.format("X--> Frame rate: %f fps\n",
1.0 / elapsed);
System.out.format(" Output image size: %lu bytes\n",
totalJpegSize);
System.out.format(" Compression ratio: %f:1\n",
(double)(w * h * ps) / (double)totalJpegSize);
System.out.format(" Source throughput: %f Megapixels/sec\n",
(double)(w * h) / 1000000. / elapsed);
System.out.format(" Output bit stream: %f Megabits/sec\n",
(double)totalJpegSize * 8. / 1000000. / elapsed);
}
} else {
if (quiet == 1)
System.out.print("N/A\tN/A\t");
jpegBuf = new byte[1][TJ.bufSize(_tilew, _tileh, subsamp)];
jpegSize = new int[1];
jpegSize[0] = srcSize;
System.arraycopy(srcBuf, 0, jpegBuf[0], 0, srcSize);
}
if (w == tilew)
_tilew = _w;
if (h == tileh)
_tileh = _h;
if ((xformOpt & TJTransform.OPT_NOOUTPUT) == 0)
decompTest(null, jpegBuf, jpegSize, null, _w, _h, _subsamp, 0,
fileName, _tilew, _tileh);
else if (quiet == 1)
System.out.println("N/A");
jpegBuf = null;
jpegSize = null;
if (tilew == w && tileh == h) break;
}
}
static void usage() throws Exception
{
int i;
TJScalingFactor scalingFactors[] = TJ.getScalingFactors();
int nsf = scalingFactors.length;
String className = new TJBench().getClass().getName();
System.out.println("\nUSAGE: java " + className);
System.out.println(" <Inputfile (BMP)> <Quality> [options]\n");
System.out.println(" java " + className);
System.out.println(" <Inputfile (JPG)> [options]\n");
System.out.println("Options:\n");
System.out.println("-alloc = Dynamically allocate JPEG image buffers");
System.out.println("-bottomup = Test bottom-up compression/decompression");
System.out.println("-tile = Test performance of the codec when the image is encoded as separate");
System.out.println(" tiles of varying sizes.");
System.out.println("-forcemmx, -forcesse, -forcesse2, -forcesse3 =");
System.out.println(" Force MMX, SSE, SSE2, or SSE3 code paths in the underlying codec");
System.out.println("-rgb, -bgr, -rgbx, -bgrx, -xbgr, -xrgb =");
System.out.println(" Test the specified color conversion path in the codec (default: BGR)");
System.out.println("-fastupsample = Use the fastest chrominance upsampling algorithm available in");
System.out.println(" the underlying codec");
System.out.println("-fastdct = Use the fastest DCT/IDCT algorithms available in the underlying");
System.out.println(" codec");
System.out.println("-accuratedct = Use the most accurate DCT/IDCT algorithms available in the");
System.out.println(" underlying codec");
System.out.println("-quiet = Output results in tabular rather than verbose format");
System.out.println("-yuvencode = Encode RGB input as planar YUV rather than compressing as JPEG");
System.out.println("-yuvdecode = Decode JPEG image to planar YUV rather than RGB");
System.out.println("-scale M/N = scale down the width/height of the decompressed JPEG image by a");
System.out.print (" factor of M/N (M/N = ");
for (i = 0; i < nsf; i++) {
System.out.format("%d/%d", scalingFactors[i].getNum(),
scalingFactors[i].getDenom());
if (nsf == 2 && i != nsf - 1)
System.out.print(" or ");
else if (nsf > 2) {
if (i != nsf - 1)
System.out.print(", ");
if (i == nsf - 2)
System.out.print("or ");
}
if (i % 8 == 0 && i != 0)
System.out.print("\n ");
}
System.out.println(")");
System.out.println("-hflip, -vflip, -transpose, -transverse, -rot90, -rot180, -rot270 =");
System.out.println(" Perform the corresponding lossless transform prior to");
System.out.println(" decompression (these options are mutually exclusive)");
System.out.println("-grayscale = Perform lossless grayscale conversion prior to decompression");
System.out.println(" test (can be combined with the other transforms above)");
System.out.println("-benchTime <t> = Run each benchmark for at least <t> seconds (default = 5.0)\n");
System.out.println("NOTE: If the quality is specified as a range (e.g. 90-100), a separate");
System.out.println("test will be performed for all quality values in the range.\n");
System.exit(1);
}
public static void main(String argv[])
{
byte[] srcBuf = null; int w = 0, h = 0;
int minQual = -1, maxQual = -1;
int minArg = 1; int retval = 0;
try {
if (argv.length < minArg)
usage();
String tempStr = argv[0].toLowerCase();
if (tempStr.endsWith(".jpg") || tempStr.endsWith(".jpeg"))
decompOnly = true;
System.out.println("");
if (argv.length > minArg) {
for (int i = minArg; i < argv.length; i++) {
if (argv[i].equalsIgnoreCase("-yuvencode")) {
System.out.println("Testing YUV planar encoding\n");
yuv = YUVENCODE; maxQual = minQual = 100;
}
if (argv[i].equalsIgnoreCase("-yuvdecode")) {
System.out.println("Testing YUV planar decoding\n");
yuv = YUVDECODE;
}
}
}
if (!decompOnly && yuv != YUVENCODE) {
minArg = 2;
if (argv.length < minArg)
usage();
try {
minQual = Integer.parseInt(argv[1]);
} catch (NumberFormatException e) {}
if (minQual < 1 || minQual > 100)
throw new Exception("Quality must be between 1 and 100.");
int dashIndex = argv[1].indexOf('-');
if (dashIndex > 0 && argv[1].length() > dashIndex + 1) {
try {
maxQual = Integer.parseInt(argv[1].substring(dashIndex + 1));
} catch (NumberFormatException e) {}
}
if (maxQual < 1 || maxQual > 100)
maxQual = minQual;
}
if (argv.length > minArg) {
for (int i = minArg; i < argv.length; i++) {
if (argv[i].equalsIgnoreCase("-tile")) {
doTile = true; xformOpt |= TJTransform.OPT_CROP;
}
if (argv[i].equalsIgnoreCase("-forcesse3")) {
System.out.println("Forcing SSE3 code\n");
flags |= TJ.FLAG_FORCESSE3;
}
if (argv[i].equalsIgnoreCase("-forcesse2")) {
System.out.println("Forcing SSE2 code\n");
flags |= TJ.FLAG_FORCESSE2;
}
if (argv[i].equalsIgnoreCase("-forcesse")) {
System.out.println("Forcing SSE code\n");
flags |= TJ.FLAG_FORCESSE;
}
if (argv[i].equalsIgnoreCase("-forcemmx")) {
System.out.println("Forcing MMX code\n");
flags |= TJ.FLAG_FORCEMMX;
}
if (argv[i].equalsIgnoreCase("-fastupsample")) {
System.out.println("Using fast upsampling code\n");
flags |= TJ.FLAG_FASTUPSAMPLE;
}
if (argv[i].equalsIgnoreCase("-fastdct")) {
System.out.println("Using fastest DCT/IDCT algorithm\n");
flags |= TJ.FLAG_FASTDCT;
}
if (argv[i].equalsIgnoreCase("-accuratedct")) {
System.out.println("Using most accurate DCT/IDCT algorithm\n");
flags |= TJ.FLAG_ACCURATEDCT;
}
if (argv[i].equalsIgnoreCase("-rgb"))
pf = TJ.PF_RGB;
if (argv[i].equalsIgnoreCase("-rgbx"))
pf = TJ.PF_RGBX;
if (argv[i].equalsIgnoreCase("-bgr"))
pf = TJ.PF_BGR;
if (argv[i].equalsIgnoreCase("-bgrx"))
pf = TJ.PF_BGRX;
if (argv[i].equalsIgnoreCase("-xbgr"))
pf = TJ.PF_XBGR;
if (argv[i].equalsIgnoreCase("-xrgb"))
pf = TJ.PF_XRGB;
if (argv[i].equalsIgnoreCase("-bottomup"))
flags |= TJ.FLAG_BOTTOMUP;
if (argv[i].equalsIgnoreCase("-quiet"))
quiet = 1;
if (argv[i].equalsIgnoreCase("-qq"))
quiet = 2;
if (argv[i].equalsIgnoreCase("-scale") && i < argv.length - 1) {
int temp1 = 0, temp2 = 0;
boolean match = false, scanned = true;
Scanner scanner = new Scanner(argv[++i]).useDelimiter("/");
try {
temp1 = scanner.nextInt();
temp2 = scanner.nextInt();
} catch(Exception e) {}
if (temp2 <= 0) temp2 = 1;
if (temp1 > 0) {
TJScalingFactor scalingFactors[] = TJ.getScalingFactors();
for (int j = 0; j < scalingFactors.length; j++) {
if ((double)temp1 / (double)temp2 ==
(double)scalingFactors[j].getNum() /
(double)scalingFactors[j].getDenom()) {
sf = scalingFactors[j];
match = true; break;
}
}
if (!match) usage();
} else
usage();
}
if (argv[i].equalsIgnoreCase("-hflip"))
xformOp = TJTransform.OP_HFLIP;
if (argv[i].equalsIgnoreCase("-vflip"))
xformOp = TJTransform.OP_VFLIP;
if (argv[i].equalsIgnoreCase("-transpose"))
xformOp = TJTransform.OP_TRANSPOSE;
if (argv[i].equalsIgnoreCase("-transverse"))
xformOp = TJTransform.OP_TRANSVERSE;
if (argv[i].equalsIgnoreCase("-rot90"))
xformOp = TJTransform.OP_ROT90;
if (argv[i].equalsIgnoreCase("-rot180"))
xformOp = TJTransform.OP_ROT180;
if (argv[i].equalsIgnoreCase("-rot270"))
xformOp = TJTransform.OP_ROT270;
if (argv[i].equalsIgnoreCase("-grayscale"))
xformOpt |= TJTransform.OPT_GRAY;
if (argv[i].equalsIgnoreCase("-nooutput"))
xformOpt |= TJTransform.OPT_NOOUTPUT;
if (argv[i].equalsIgnoreCase("-benchtime") && i < argv.length - 1) {
double temp = -1;
try {
temp = Double.parseDouble(argv[++i]);
} catch (NumberFormatException e) {}
if (temp > 0.0)
benchTime = temp;
else
usage();
}
if (argv[i].equalsIgnoreCase("-?"))
usage();
}
}
if (sf == null)
sf = new TJScalingFactor(1, 1);
if ((sf.getNum() != 1 || sf.getDenom() != 1) && doTile) {
System.out.println("Disabling tiled compression/decompression tests, because those tests do not");
System.out.println("work when scaled decompression is enabled.");
doTile = false;
}
if (yuv != 0 && doTile) {
System.out.println("Disabling tiled compression/decompression tests, because those tests do not");
System.out.println("work when YUV encoding or decoding is enabled.\n");
doTile = false;
}
if (!decompOnly) {
int[] width = new int[1], height = new int[1];
srcBuf = loadImage(argv[0], width, height, pf);
w = width[0]; h = height[0];
int index = -1;
if ((index = argv[0].indexOf('.')) >= 0)
argv[0] = argv[0].substring(0, index);
}
if (quiet == 1 && !decompOnly) {
System.out.println("All performance values in Mpixels/sec\n");
System.out.format("Bitmap\tBitmap\tJPEG\tJPEG\t%s %s \tComp\tComp\tDecomp\n",
(doTile ? "Tile " : "Image"), (doTile ? "Tile " : "Image"));
System.out.println("Format\tOrder\tSubsamp\tQual\tWidth Height\tPerf \tRatio\tPerf\n");
}
if (decompOnly) {
doDecompTest(argv[0]);
System.out.println("");
System.exit(retval);
}
System.gc();
for (int i = maxQual; i >= minQual; i--)
doTest(srcBuf, w, h, TJ.SAMP_GRAY, i, argv[0]);
System.out.println("");
System.gc();
for (int i = maxQual; i >= minQual; i--)
doTest(srcBuf, w, h, TJ.SAMP_420, i, argv[0]);
System.out.println("");
System.gc();
for (int i = maxQual; i >= minQual; i--)
doTest(srcBuf, w, h, TJ.SAMP_422, i, argv[0]);
System.out.println("");
System.gc();
for (int i = maxQual; i >= minQual; i--)
doTest(srcBuf, w, h, TJ.SAMP_444, i, argv[0]);
System.out.println("");
} catch (Exception e) {
System.out.println("ERROR: " + e.getMessage());
e.printStackTrace();
retval = -1;
}
System.exit(retval);
}
}

4
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<!--NewPage-->
<HTML>
<HEAD>
<!-- Generated by javadoc (build 1.6.0_33) on Fri Jun 29 18:36:27 CDT 2012 -->
<!-- Generated by javadoc (build 1.6.0_35) on Sun Sep 23 19:56:07 CDT 2012 -->
<TITLE>
All Classes
</TITLE>
<META NAME="date" CONTENT="2012-06-29">
<META NAME="date" CONTENT="2012-09-23">
<LINK REL ="stylesheet" TYPE="text/css" HREF="stylesheet.css" TITLE="Style">

4
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<HTML>
<HEAD>
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<TITLE>
All Classes
</TITLE>
<META NAME="date" CONTENT="2012-06-29">
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4
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<HTML>
<HEAD>
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<TITLE>
Constant Field Values
</TITLE>
<META NAME="date" CONTENT="2012-06-29">
<META NAME="date" CONTENT="2012-09-23">
<LINK REL ="stylesheet" TYPE="text/css" HREF="stylesheet.css" TITLE="Style">

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<HTML>
<HEAD>
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<TITLE>
Deprecated List
</TITLE>
<META NAME="date" CONTENT="2012-06-29">
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<LINK REL ="stylesheet" TYPE="text/css" HREF="stylesheet.css" TITLE="Style">

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<!--NewPage-->
<HTML>
<HEAD>
<!-- Generated by javadoc (build 1.6.0_33) on Fri Jun 29 18:36:27 CDT 2012 -->
<!-- Generated by javadoc (build 1.6.0_35) on Sun Sep 23 19:56:07 CDT 2012 -->
<TITLE>
API Help
</TITLE>
<META NAME="date" CONTENT="2012-06-29">
<META NAME="date" CONTENT="2012-09-23">
<LINK REL ="stylesheet" TYPE="text/css" HREF="stylesheet.css" TITLE="Style">

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<!--NewPage-->
<HTML>
<HEAD>
<!-- Generated by javadoc (build 1.6.0_33) on Fri Jun 29 18:36:27 CDT 2012 -->
<!-- Generated by javadoc (build 1.6.0_35) on Sun Sep 23 19:56:07 CDT 2012 -->
<TITLE>
Index
</TITLE>
<META NAME="date" CONTENT="2012-06-29">
<META NAME="date" CONTENT="2012-09-23">
<LINK REL ="stylesheet" TYPE="text/css" HREF="./stylesheet.css" TITLE="Style">
@@ -479,6 +479,9 @@ Method in class org.libjpegturbo.turbojpeg.<A HREF="./org/libjpegturbo/turbojpeg
<DT><A HREF="./org/libjpegturbo/turbojpeg/TJCompressor.html#setJPEGQuality(int)"><B>setJPEGQuality(int)</B></A> -
Method in class org.libjpegturbo.turbojpeg.<A HREF="./org/libjpegturbo/turbojpeg/TJCompressor.html" title="class in org.libjpegturbo.turbojpeg">TJCompressor</A>
<DD>Set the JPEG image quality level for subsequent compress operations.
<DT><A HREF="./org/libjpegturbo/turbojpeg/TJCompressor.html#setSourceImage(byte[], int, int, int, int, int, int)"><B>setSourceImage(byte[], int, int, int, int, int, int)</B></A> -
Method in class org.libjpegturbo.turbojpeg.<A HREF="./org/libjpegturbo/turbojpeg/TJCompressor.html" title="class in org.libjpegturbo.turbojpeg">TJCompressor</A>
<DD>Associate an uncompressed source image with this compressor instance.
<DT><A HREF="./org/libjpegturbo/turbojpeg/TJCompressor.html#setSourceImage(byte[], int, int, int, int)"><B>setSourceImage(byte[], int, int, int, int)</B></A> -
Method in class org.libjpegturbo.turbojpeg.<A HREF="./org/libjpegturbo/turbojpeg/TJCompressor.html" title="class in org.libjpegturbo.turbojpeg">TJCompressor</A>
<DD>Associate an uncompressed source image with this compressor instance.
@@ -499,6 +502,11 @@ Constructor for class org.libjpegturbo.turbojpeg.<A HREF="./org/libjpegturbo/tur
<DD>Create a TurboJPEG compressor instance.
<DT><A HREF="./org/libjpegturbo/turbojpeg/TJCompressor.html#TJCompressor(byte[], int, int, int, int)"><B>TJCompressor(byte[], int, int, int, int)</B></A> -
Constructor for class org.libjpegturbo.turbojpeg.<A HREF="./org/libjpegturbo/turbojpeg/TJCompressor.html" title="class in org.libjpegturbo.turbojpeg">TJCompressor</A>
<DD>Create a TurboJPEG compressor instance and associate the uncompressed
source image stored in <code>srcImage</code> with the newly-created
instance.
<DT><A HREF="./org/libjpegturbo/turbojpeg/TJCompressor.html#TJCompressor(byte[], int, int, int, int, int, int)"><B>TJCompressor(byte[], int, int, int, int, int, int)</B></A> -
Constructor for class org.libjpegturbo.turbojpeg.<A HREF="./org/libjpegturbo/turbojpeg/TJCompressor.html" title="class in org.libjpegturbo.turbojpeg">TJCompressor</A>
<DD>Create a TurboJPEG compressor instance and associate the uncompressed
source image stored in <code>srcImage</code> with the newly-created
instance.

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<HTML>
<HEAD>
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<TITLE>
Generated Documentation (Untitled)
</TITLE>

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<HTML>
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<TITLE>
TJ
</TITLE>
<META NAME="date" CONTENT="2012-06-29">
<META NAME="date" CONTENT="2012-09-23">
<LINK REL ="stylesheet" TYPE="text/css" HREF="../../../stylesheet.css" TITLE="Style">

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<HTML>
<HEAD>
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<TITLE>
TJCompressor
</TITLE>
<META NAME="date" CONTENT="2012-06-29">
<META NAME="date" CONTENT="2012-09-23">
<LINK REL ="stylesheet" TYPE="text/css" HREF="../../../stylesheet.css" TITLE="Style">
@@ -128,6 +128,20 @@ TurboJPEG compressor
int&nbsp;height,
int&nbsp;pixelFormat)</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Create a TurboJPEG compressor instance and associate the uncompressed
source image stored in <code>srcImage</code> with the newly-created
instance.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE><B><A HREF="../../../org/libjpegturbo/turbojpeg/TJCompressor.html#TJCompressor(byte[], int, int, int, int, int, int)">TJCompressor</A></B>(byte[]&nbsp;srcImage,
int&nbsp;x,
int&nbsp;y,
int&nbsp;width,
int&nbsp;pitch,
int&nbsp;height,
int&nbsp;pixelFormat)</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Create a TurboJPEG compressor instance and associate the uncompressed
source image stored in <code>srcImage</code> with the newly-created
@@ -265,6 +279,20 @@ TurboJPEG compressor
int&nbsp;height,
int&nbsp;pixelFormat)</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Associate an uncompressed source image with this compressor instance.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/libjpegturbo/turbojpeg/TJCompressor.html#setSourceImage(byte[], int, int, int, int, int, int)">setSourceImage</A></B>(byte[]&nbsp;srcImage,
int&nbsp;x,
int&nbsp;y,
int&nbsp;width,
int&nbsp;pitch,
int&nbsp;height,
int&nbsp;pixelFormat)</CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Associate an uncompressed source image with this compressor instance.</TD>
</TR>
@@ -330,7 +358,30 @@ public <B>TJCompressor</B>(byte[]&nbsp;srcImage,
instance.
<P>
<DL>
<DT><B>Parameters:</B><DD><CODE>srcImage</CODE> - see <A HREF="../../../org/libjpegturbo/turbojpeg/TJCompressor.html#setSourceImage(byte[], int, int, int, int)"><CODE>setSourceImage(byte[], int, int, int, int)</CODE></A> for description<DD><CODE>width</CODE> - see <A HREF="../../../org/libjpegturbo/turbojpeg/TJCompressor.html#setSourceImage(byte[], int, int, int, int)"><CODE>setSourceImage(byte[], int, int, int, int)</CODE></A> for description<DD><CODE>pitch</CODE> - see <A HREF="../../../org/libjpegturbo/turbojpeg/TJCompressor.html#setSourceImage(byte[], int, int, int, int)"><CODE>setSourceImage(byte[], int, int, int, int)</CODE></A> for description<DD><CODE>height</CODE> - see <A HREF="../../../org/libjpegturbo/turbojpeg/TJCompressor.html#setSourceImage(byte[], int, int, int, int)"><CODE>setSourceImage(byte[], int, int, int, int)</CODE></A> for description<DD><CODE>pixelFormat</CODE> - see <A HREF="../../../org/libjpegturbo/turbojpeg/TJCompressor.html#setSourceImage(byte[], int, int, int, int)"><CODE>setSourceImage(byte[], int, int, int, int)</CODE></A> for description
<DT><B>Parameters:</B><DD><CODE>srcImage</CODE> - see <A HREF="../../../org/libjpegturbo/turbojpeg/TJCompressor.html#setSourceImage(byte[], int, int, int, int, int, int)"><CODE>setSourceImage(byte[], int, int, int, int, int, int)</CODE></A> for description<DD><CODE>width</CODE> - see <A HREF="../../../org/libjpegturbo/turbojpeg/TJCompressor.html#setSourceImage(byte[], int, int, int, int, int, int)"><CODE>setSourceImage(byte[], int, int, int, int, int, int)</CODE></A> for description<DD><CODE>pitch</CODE> - see <A HREF="../../../org/libjpegturbo/turbojpeg/TJCompressor.html#setSourceImage(byte[], int, int, int, int, int, int)"><CODE>setSourceImage(byte[], int, int, int, int, int, int)</CODE></A> for description<DD><CODE>height</CODE> - see <A HREF="../../../org/libjpegturbo/turbojpeg/TJCompressor.html#setSourceImage(byte[], int, int, int, int, int, int)"><CODE>setSourceImage(byte[], int, int, int, int, int, int)</CODE></A> for description<DD><CODE>pixelFormat</CODE> - see <A HREF="../../../org/libjpegturbo/turbojpeg/TJCompressor.html#setSourceImage(byte[], int, int, int, int, int, int)"><CODE>setSourceImage(byte[], int, int, int, int, int, int)</CODE></A> for description
<DT><B>Throws:</B>
<DD><CODE>java.lang.Exception</CODE></DL>
</DL>
<HR>
<A NAME="TJCompressor(byte[], int, int, int, int, int, int)"><!-- --></A><H3>
TJCompressor</H3>
<PRE>
public <B>TJCompressor</B>(byte[]&nbsp;srcImage,
int&nbsp;x,
int&nbsp;y,
int&nbsp;width,
int&nbsp;pitch,
int&nbsp;height,
int&nbsp;pixelFormat)
throws java.lang.Exception</PRE>
<DL>
<DD>Create a TurboJPEG compressor instance and associate the uncompressed
source image stored in <code>srcImage</code> with the newly-created
instance.
<P>
<DL>
<DT><B>Parameters:</B><DD><CODE>srcImage</CODE> - see <A HREF="../../../org/libjpegturbo/turbojpeg/TJCompressor.html#setSourceImage(byte[], int, int, int, int, int, int)"><CODE>setSourceImage(byte[], int, int, int, int, int, int)</CODE></A> for description<DD><CODE>x</CODE> - see <A HREF="../../../org/libjpegturbo/turbojpeg/TJCompressor.html#setSourceImage(byte[], int, int, int, int, int, int)"><CODE>setSourceImage(byte[], int, int, int, int, int, int)</CODE></A> for description<DD><CODE>y</CODE> - see <A HREF="../../../org/libjpegturbo/turbojpeg/TJCompressor.html#setSourceImage(byte[], int, int, int, int, int, int)"><CODE>setSourceImage(byte[], int, int, int, int, int, int)</CODE></A> for description<DD><CODE>width</CODE> - see <A HREF="../../../org/libjpegturbo/turbojpeg/TJCompressor.html#setSourceImage(byte[], int, int, int, int, int, int)"><CODE>setSourceImage(byte[], int, int, int, int, int, int)</CODE></A> for description<DD><CODE>pitch</CODE> - see <A HREF="../../../org/libjpegturbo/turbojpeg/TJCompressor.html#setSourceImage(byte[], int, int, int, int, int, int)"><CODE>setSourceImage(byte[], int, int, int, int, int, int)</CODE></A> for description<DD><CODE>height</CODE> - see <A HREF="../../../org/libjpegturbo/turbojpeg/TJCompressor.html#setSourceImage(byte[], int, int, int, int, int, int)"><CODE>setSourceImage(byte[], int, int, int, int, int, int)</CODE></A> for description<DD><CODE>pixelFormat</CODE> - see <A HREF="../../../org/libjpegturbo/turbojpeg/TJCompressor.html#setSourceImage(byte[], int, int, int, int, int, int)"><CODE>setSourceImage(byte[], int, int, int, int, int, int)</CODE></A> for description
<DT><B>Throws:</B>
<DD><CODE>java.lang.Exception</CODE></DL>
</DL>
@@ -345,6 +396,41 @@ public <B>TJCompressor</B>(byte[]&nbsp;srcImage,
</TR>
</TABLE>
<A NAME="setSourceImage(byte[], int, int, int, int, int, int)"><!-- --></A><H3>
setSourceImage</H3>
<PRE>
public void <B>setSourceImage</B>(byte[]&nbsp;srcImage,
int&nbsp;x,
int&nbsp;y,
int&nbsp;width,
int&nbsp;pitch,
int&nbsp;height,
int&nbsp;pixelFormat)
throws java.lang.Exception</PRE>
<DL>
<DD>Associate an uncompressed source image with this compressor instance.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>srcImage</CODE> - image buffer containing RGB or grayscale pixels to be
compressed<DD><CODE>x</CODE> - x offset (in pixels) of the region from which the JPEG image
should be compressed, relative to the start of <code>srcImage</code>.<DD><CODE>y</CODE> - y offset (in pixels) of the region from which the JPEG image
should be compressed, relative to the start of <code>srcImage</code>.<DD><CODE>width</CODE> - width (in pixels) of the region in the source image from
which the JPEG image should be compressed.<DD><CODE>pitch</CODE> - bytes per line of the source image. Normally, this should be
<code>width * TJ.pixelSize(pixelFormat)</code> if the source image is
unpadded, but you can use this parameter to, for instance, specify that
the scanlines in the source image are padded to a 4-byte boundary or to
compress a JPEG image from a region of a larger source image. You can
also be clever and use this parameter to skip lines, etc. Setting this
parameter to 0 is the equivalent of setting it to <code>width *
TJ.pixelSize(pixelFormat)</code>.<DD><CODE>height</CODE> - height (in pixels) of the region in the source image from
which the JPEG image should be compressed.<DD><CODE>pixelFormat</CODE> - pixel format of the source image (one of
<A HREF="../../../org/libjpegturbo/turbojpeg/TJ.html" title="class in org.libjpegturbo.turbojpeg"><CODE>TJ.PF_*</CODE></A>)
<DT><B>Throws:</B>
<DD><CODE>java.lang.Exception</CODE></DL>
</DD>
</DL>
<HR>
<A NAME="setSourceImage(byte[], int, int, int, int)"><!-- --></A><H3>
setSourceImage</H3>
<PRE>
@@ -358,15 +444,15 @@ public void <B>setSourceImage</B>(byte[]&nbsp;srcImage,
<DD>Associate an uncompressed source image with this compressor instance.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>srcImage</CODE> - image buffer containing RGB or grayscale pixels to be
compressed<DD><CODE>width</CODE> - width (in pixels) of the source image<DD><CODE>pitch</CODE> - bytes per line of the source image. Normally, this should be
<code>width * TJ.pixelSize(pixelFormat)</code> if the source image is
unpadded, but you can use this parameter to, for instance, specify that
the scanlines in the source image are padded to 4-byte boundaries, as is
the case for Windows bitmaps. You can also be clever and use this
parameter to skip lines, etc. Setting this parameter to 0 is the
equivalent of setting it to <code>width *
TJ.pixelSize(pixelFormat)</code>.<DD><CODE>height</CODE> - height (in pixels) of the source image<DD><CODE>pixelFormat</CODE> - pixel format of the source image (one of
<DT><B>Parameters:</B><DD><CODE>srcImage</CODE> - see
<A HREF="../../../org/libjpegturbo/turbojpeg/TJCompressor.html#setSourceImage(byte[], int, int, int, int, int, int)"><CODE>setSourceImage(byte[], int, int, int, int, int, int)</CODE></A> for
description<DD><CODE>width</CODE> - see
<A HREF="../../../org/libjpegturbo/turbojpeg/TJCompressor.html#setSourceImage(byte[], int, int, int, int, int, int)"><CODE>setSourceImage(byte[], int, int, int, int, int, int)</CODE></A> for
description<DD><CODE>pitch</CODE> - see
<A HREF="../../../org/libjpegturbo/turbojpeg/TJCompressor.html#setSourceImage(byte[], int, int, int, int, int, int)"><CODE>setSourceImage(byte[], int, int, int, int, int, int)</CODE></A> for
description<DD><CODE>height</CODE> - see
<A HREF="../../../org/libjpegturbo/turbojpeg/TJCompressor.html#setSourceImage(byte[], int, int, int, int, int, int)"><CODE>setSourceImage(byte[], int, int, int, int, int, int)</CODE></A> for
description<DD><CODE>pixelFormat</CODE> - pixel format of the source image (one of
<A HREF="../../../org/libjpegturbo/turbojpeg/TJ.html" title="class in org.libjpegturbo.turbojpeg"><CODE>TJ.PF_*</CODE></A>)
<DT><B>Throws:</B>
<DD><CODE>java.lang.Exception</CODE></DL>

4
java/doc/org/libjpegturbo/turbojpeg/TJCustomFilter.html
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@@ -2,12 +2,12 @@
<!--NewPage-->
<HTML>
<HEAD>
<!-- Generated by javadoc (build 1.6.0_33) on Fri Jun 29 18:36:27 CDT 2012 -->
<!-- Generated by javadoc (build 1.6.0_35) on Sun Sep 23 19:56:07 CDT 2012 -->
<TITLE>
TJCustomFilter
</TITLE>
<META NAME="date" CONTENT="2012-06-29">
<META NAME="date" CONTENT="2012-09-23">
<LINK REL ="stylesheet" TYPE="text/css" HREF="../../../stylesheet.css" TITLE="Style">

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_33) on Fri Jun 29 18:36:27 CDT 2012 -->
<!-- Generated by javadoc (build 1.6.0_35) on Sun Sep 23 19:56:07 CDT 2012 -->
<TITLE>
TJDecompressor
</TITLE>
<META NAME="date" CONTENT="2012-06-29">
<META NAME="date" CONTENT="2012-09-23">
<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_33) on Fri Jun 29 18:36:27 CDT 2012 -->
<!-- Generated by javadoc (build 1.6.0_35) on Sun Sep 23 19:56:07 CDT 2012 -->
<TITLE>
TJScalingFactor
</TITLE>
<META NAME="date" CONTENT="2012-06-29">
<META NAME="date" CONTENT="2012-09-23">
<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_33) on Fri Jun 29 18:36:27 CDT 2012 -->
<!-- Generated by javadoc (build 1.6.0_35) on Sun Sep 23 19:56:07 CDT 2012 -->
<TITLE>
TJTransform
</TITLE>
<META NAME="date" CONTENT="2012-06-29">
<META NAME="date" CONTENT="2012-09-23">
<LINK REL ="stylesheet" TYPE="text/css" HREF="../../../stylesheet.css" TITLE="Style">

4
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_33) on Fri Jun 29 18:36:27 CDT 2012 -->
<!-- Generated by javadoc (build 1.6.0_35) on Sun Sep 23 19:56:07 CDT 2012 -->
<TITLE>
TJTransformer
</TITLE>
<META NAME="date" CONTENT="2012-06-29">
<META NAME="date" CONTENT="2012-09-23">
<LINK REL ="stylesheet" TYPE="text/css" HREF="../../../stylesheet.css" TITLE="Style">

4
java/doc/org/libjpegturbo/turbojpeg/package-frame.html
View File

@@ -2,12 +2,12 @@
<!--NewPage-->
<HTML>
<HEAD>
<!-- Generated by javadoc (build 1.6.0_33) on Fri Jun 29 18:36:27 CDT 2012 -->
<!-- Generated by javadoc (build 1.6.0_35) on Sun Sep 23 19:56:07 CDT 2012 -->
<TITLE>
org.libjpegturbo.turbojpeg
</TITLE>
<META NAME="date" CONTENT="2012-06-29">
<META NAME="date" CONTENT="2012-09-23">
<LINK REL ="stylesheet" TYPE="text/css" HREF="../../../stylesheet.css" TITLE="Style">

4
java/doc/org/libjpegturbo/turbojpeg/package-summary.html
View File

@@ -2,12 +2,12 @@
<!--NewPage-->
<HTML>
<HEAD>
<!-- Generated by javadoc (build 1.6.0_33) on Fri Jun 29 18:36:27 CDT 2012 -->
<!-- Generated by javadoc (build 1.6.0_35) on Sun Sep 23 19:56:07 CDT 2012 -->
<TITLE>
org.libjpegturbo.turbojpeg
</TITLE>
<META NAME="date" CONTENT="2012-06-29">
<META NAME="date" CONTENT="2012-09-23">
<LINK REL ="stylesheet" TYPE="text/css" HREF="../../../stylesheet.css" TITLE="Style">

4
java/doc/org/libjpegturbo/turbojpeg/package-tree.html
View File

@@ -2,12 +2,12 @@
<!--NewPage-->
<HTML>
<HEAD>
<!-- Generated by javadoc (build 1.6.0_33) on Fri Jun 29 18:36:27 CDT 2012 -->
<!-- Generated by javadoc (build 1.6.0_35) on Sun Sep 23 19:56:07 CDT 2012 -->
<TITLE>
org.libjpegturbo.turbojpeg Class Hierarchy
</TITLE>
<META NAME="date" CONTENT="2012-06-29">
<META NAME="date" CONTENT="2012-09-23">
<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_33) on Fri Jun 29 18:36:27 CDT 2012 -->
<!-- Generated by javadoc (build 1.6.0_35) on Sun Sep 23 19:56:07 CDT 2012 -->
<TITLE>
Class Hierarchy
</TITLE>
<META NAME="date" CONTENT="2012-06-29">
<META NAME="date" CONTENT="2012-09-23">
<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_33) on Fri Jun 29 18:36:27 CDT 2012 -->
<!-- Generated by javadoc (build 1.6.0_35) on Sun Sep 23 19:56:07 CDT 2012 -->
<TITLE>
Serialized Form
</TITLE>
<META NAME="date" CONTENT="2012-06-29">
<META NAME="date" CONTENT="2012-09-23">
<LINK REL ="stylesheet" TYPE="text/css" HREF="stylesheet.css" TITLE="Style">

130
java/org/libjpegturbo/turbojpeg/TJCompressor.java
View File

@@ -1,5 +1,5 @@
/*
* Copyright (C)2011 D. R. Commander. All Rights Reserved.
* Copyright (C)2011-2012 D. R. Commander. All Rights Reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
@@ -66,33 +66,65 @@ public class TJCompressor {
setSourceImage(srcImage, width, pitch, height, pixelFormat);
}
/**
* Create a TurboJPEG compressor instance and associate the uncompressed
* source image stored in <code>srcImage</code> with the newly-created
* instance.
*
* @param srcImage see {@link #setSourceImage} for description
*
* @param x see {@link #setSourceImage} for description
*
* @param y see {@link #setSourceImage} for description
*
* @param width see {@link #setSourceImage} for description
*
* @param pitch see {@link #setSourceImage} for description
*
* @param height see {@link #setSourceImage} for description
*
* @param pixelFormat see {@link #setSourceImage} for description
*/
public TJCompressor(byte[] srcImage, int x, int y, int width, int pitch,
int height, int pixelFormat) throws Exception {
setSourceImage(srcImage, x, y, width, pitch, height, pixelFormat);
}
/**
* Associate an uncompressed source image with this compressor instance.
*
* @param srcImage image buffer containing RGB or grayscale pixels to be
* compressed
*
* @param width width (in pixels) of the source image
* @param x x offset (in pixels) of the region from which the JPEG image
* should be compressed, relative to the start of <code>srcImage</code>.
*
* @param y y offset (in pixels) of the region from which the JPEG image
* should be compressed, relative to the start of <code>srcImage</code>.
*
* @param width width (in pixels) of the region in the source image from
* which the JPEG image should be compressed.
*
* @param pitch bytes per line of the source image. Normally, this should be
* <code>width * TJ.pixelSize(pixelFormat)</code> if the source image is
* unpadded, but you can use this parameter to, for instance, specify that
* the scanlines in the source image are padded to 4-byte boundaries, as is
* the case for Windows bitmaps. You can also be clever and use this
* parameter to skip lines, etc. Setting this parameter to 0 is the
* equivalent of setting it to <code>width *
* the scanlines in the source image are padded to a 4-byte boundary or to
* compress a JPEG image from a region of a larger source image. You can
* also be clever and use this parameter to skip lines, etc. Setting this
* parameter to 0 is the equivalent of setting it to <code>width *
* TJ.pixelSize(pixelFormat)</code>.
*
* @param height height (in pixels) of the source image
* @param height height (in pixels) of the region in the source image from
* which the JPEG image should be compressed.
*
* @param pixelFormat pixel format of the source image (one of
* {@link TJ TJ.PF_*})
*/
public void setSourceImage(byte[] srcImage, int width, int pitch,
int height, int pixelFormat) throws Exception {
public void setSourceImage(byte[] srcImage, int x, int y, int width,
int pitch, int height, int pixelFormat) throws Exception {
if(handle == 0) init();
if(srcImage == null || width < 1 || height < 1 || pitch < 0
|| pixelFormat < 0 || pixelFormat >= TJ.NUMPF)
if(srcImage == null || x < 0 || y < 0 || width < 1 || height < 1
|| pitch < 0 || pixelFormat < 0 || pixelFormat >= TJ.NUMPF)
throw new Exception("Invalid argument in setSourceImage()");
srcBuf = srcImage;
srcWidth = width;
@@ -100,8 +132,40 @@ public class TJCompressor {
else srcPitch = pitch;
srcHeight = height;
srcPixelFormat = pixelFormat;
srcX = x;
srcY = y;
}
/**
* Associate an uncompressed source image with this compressor instance.
*
* @param srcImage see
* {@link #setSourceImage(byte[], int, int, int, int, int, int)} for
* description
*
* @param width see
* {@link #setSourceImage(byte[], int, int, int, int, int, int)} for
* description
*
* @param pitch see
* {@link #setSourceImage(byte[], int, int, int, int, int, int)} for
* description
*
* @param height see
* {@link #setSourceImage(byte[], int, int, int, int, int, int)} for
* description
*
* @param pixelFormat pixel format of the source image (one of
* {@link TJ TJ.PF_*})
*/
public void setSourceImage(byte[] srcImage, int width, int pitch,
int height, int pixelFormat) throws Exception {
setSourceImage(srcImage, 0, 0, width, pitch, height, pixelFormat);
srcX = srcY = -1;
}
/**
* Set the level of chrominance subsampling for subsequent compress/encode
* operations.
@@ -143,8 +207,12 @@ public class TJCompressor {
if(srcBuf == null) throw new Exception(NO_ASSOC_ERROR);
if(jpegQuality < 0) throw new Exception("JPEG Quality not set");
if(subsamp < 0) throw new Exception("Subsampling level not set");
compressedSize = compress(srcBuf, srcWidth, srcPitch,
srcHeight, srcPixelFormat, dstBuf, subsamp, jpegQuality, flags);
if (srcX >= 0 && srcY >= 0)
compressedSize = compress(srcBuf, srcX, srcY, srcWidth, srcPitch,
srcHeight, srcPixelFormat, dstBuf, subsamp, jpegQuality, flags);
else
compressedSize = compress(srcBuf, srcWidth, srcPitch,
srcHeight, srcPixelFormat, dstBuf, subsamp, jpegQuality, flags);
}
/**
@@ -221,8 +289,12 @@ public class TJCompressor {
int pitch = sm.getScanlineStride();
DataBufferInt db = (DataBufferInt)wr.getDataBuffer();
int[] buf = db.getData();
compressedSize = compress(buf, width, pitch, height, pixelFormat, dstBuf,
subsamp, jpegQuality, flags);
if (srcX >= 0 && srcY >= 0)
compressedSize = compress(buf, srcX, srcY, width, pitch, height,
pixelFormat, dstBuf, subsamp, jpegQuality, flags);
else
compressedSize = compress(buf, width, pitch, height, pixelFormat,
dstBuf, subsamp, jpegQuality, flags);
}
else {
ComponentSampleModel sm =
@@ -233,8 +305,12 @@ public class TJCompressor {
int pitch = sm.getScanlineStride();
DataBufferByte db = (DataBufferByte)wr.getDataBuffer();
byte[] buf = db.getData();
compressedSize = compress(buf, width, pitch, height, pixelFormat, dstBuf,
subsamp, jpegQuality, flags);
if (srcX >= 0 && srcY >= 0)
compressedSize = compress(buf, srcX, srcY, width, pitch, height,
pixelFormat, dstBuf, subsamp, jpegQuality, flags);
else
compressedSize = compress(buf, width, pitch, height, pixelFormat,
dstBuf, subsamp, jpegQuality, flags);
}
}
@@ -438,19 +514,27 @@ public class TJCompressor {
// JPEG size in bytes is returned
private native int compress(byte[] srcBuf, int width, int pitch,
int height, int pixelFormat, byte[] dstbuf, int jpegSubsamp, int jpegQual,
int height, int pixelFormat, byte[] dstBuf, int jpegSubsamp, int jpegQual,
int flags) throws Exception;
private native int compress(int[] srcBuf, int width, int pitch,
int height, int pixelFormat, byte[] dstbuf, int jpegSubsamp, int jpegQual,
private native int compress(byte[] srcBuf, int x, int y, int width,
int pitch, int height, int pixelFormat, byte[] dstBuf, int jpegSubsamp,
int jpegQual, int flags) throws Exception;
private native int compress(int[] srcBuf, int width, int stride,
int height, int pixelFormat, byte[] dstBuf, int jpegSubsamp, int jpegQual,
int flags) throws Exception;
private native int compress(int[] srcBuf, int x, int y, int width,
int stride, int height, int pixelFormat, byte[] dstBuf, int jpegSubsamp,
int jpegQual, int flags) throws Exception;
private native void encodeYUV(byte[] srcBuf, int width, int pitch,
int height, int pixelFormat, byte[] dstbuf, int subsamp, int flags)
int height, int pixelFormat, byte[] dstBuf, int subsamp, int flags)
throws Exception;
private native void encodeYUV(int[] srcBuf, int width, int pitch,
int height, int pixelFormat, byte[] dstbuf, int subsamp, int flags)
int height, int pixelFormat, byte[] dstBuf, int subsamp, int flags)
throws Exception;
static {
@@ -461,6 +545,8 @@ public class TJCompressor {
private byte[] srcBuf = null;
private int srcWidth = 0;
private int srcHeight = 0;
private int srcX = -1;
private int srcY = -1;
private int srcPitch = 0;
private int srcPixelFormat = -1;
private int subsamp = -1;

4
java/org_libjpegturbo_turbojpeg_TJ.h
View File

@@ -55,6 +55,10 @@ extern "C" {
#define org_libjpegturbo_turbojpeg_TJ_FLAG_FORCESSE3 128L
#undef org_libjpegturbo_turbojpeg_TJ_FLAG_FASTUPSAMPLE
#define org_libjpegturbo_turbojpeg_TJ_FLAG_FASTUPSAMPLE 256L
#undef org_libjpegturbo_turbojpeg_TJ_FLAG_FASTDCT
#define org_libjpegturbo_turbojpeg_TJ_FLAG_FASTDCT 2048L
#undef org_libjpegturbo_turbojpeg_TJ_FLAG_ACCURATEDCT
#define org_libjpegturbo_turbojpeg_TJ_FLAG_ACCURATEDCT 4096L
/*
* Class: org_libjpegturbo_turbojpeg_TJ
* Method: bufSize

16
java/org_libjpegturbo_turbojpeg_TJCompressor.h
View File

@@ -31,6 +31,14 @@ JNIEXPORT void JNICALL Java_org_libjpegturbo_turbojpeg_TJCompressor_destroy
JNIEXPORT jint JNICALL Java_org_libjpegturbo_turbojpeg_TJCompressor_compress___3BIIII_3BIII
(JNIEnv *, jobject, jbyteArray, jint, jint, jint, jint, jbyteArray, jint, jint, jint);
/*
* Class: org_libjpegturbo_turbojpeg_TJCompressor
* Method: compress
* Signature: ([BIIIIII[BIII)I
*/
JNIEXPORT jint JNICALL Java_org_libjpegturbo_turbojpeg_TJCompressor_compress___3BIIIIII_3BIII
(JNIEnv *, jobject, jbyteArray, jint, jint, jint, jint, jint, jint, jbyteArray, jint, jint, jint);
/*
* Class: org_libjpegturbo_turbojpeg_TJCompressor
* Method: compress
@@ -39,6 +47,14 @@ JNIEXPORT jint JNICALL Java_org_libjpegturbo_turbojpeg_TJCompressor_compress___3
JNIEXPORT jint JNICALL Java_org_libjpegturbo_turbojpeg_TJCompressor_compress___3IIIII_3BIII
(JNIEnv *, jobject, jintArray, jint, jint, jint, jint, jbyteArray, jint, jint, jint);
/*
* Class: org_libjpegturbo_turbojpeg_TJCompressor
* Method: compress
* Signature: ([IIIIIII[BIII)I
*/
JNIEXPORT jint JNICALL Java_org_libjpegturbo_turbojpeg_TJCompressor_compress___3IIIIIII_3BIII
(JNIEnv *, jobject, jintArray, jint, jint, jint, jint, jint, jint, jbyteArray, jint, jint, jint);
/*
* Class: org_libjpegturbo_turbojpeg_TJCompressor
* Method: encodeYUV

179
tjbenchtest.java.in Executable file
View File

@@ -0,0 +1,179 @@
#!/bin/bash
set -u
set -e
trap onexit INT
trap onexit TERM
trap onexit EXIT
onexit()
{
if [ -d $OUTDIR ]; then
rm -rf $OUTDIR
fi
}
runme()
{
echo \*\*\* $*
$*
}
IMAGES="vgl_5674_0098.bmp vgl_6434_0018a.bmp vgl_6548_0026a.bmp nightshot_iso_100.bmp"
IMGDIR=@srcdir@/testimages
OUTDIR=__tjbenchtest_java_output
EXEDIR=.
JAVA="@JAVA@ -cp java/turbojpeg.jar -Djava.library.path=.libs"
if [ -d $OUTDIR ]; then
rm -rf $OUTDIR
fi
mkdir -p $OUTDIR
exec >$EXEDIR/tjbenchtest-java.log
# Standard tests
for image in $IMAGES; do
cp $IMGDIR/$image $OUTDIR
basename=`basename $image .bmp`
$EXEDIR/cjpeg -quality 95 -dct fast -grayscale $IMGDIR/${basename}.bmp >$OUTDIR/${basename}_GRAY_fast_cjpeg.jpg
$EXEDIR/cjpeg -quality 95 -dct fast -sample 2x2 $IMGDIR/${basename}.bmp >$OUTDIR/${basename}_420_fast_cjpeg.jpg
$EXEDIR/cjpeg -quality 95 -dct fast -sample 2x1 $IMGDIR/${basename}.bmp >$OUTDIR/${basename}_422_fast_cjpeg.jpg
$EXEDIR/cjpeg -quality 95 -dct fast -sample 1x1 $IMGDIR/${basename}.bmp >$OUTDIR/${basename}_444_fast_cjpeg.jpg
$EXEDIR/cjpeg -quality 95 -dct int -grayscale $IMGDIR/${basename}.bmp >$OUTDIR/${basename}_GRAY_accurate_cjpeg.jpg
$EXEDIR/cjpeg -quality 95 -dct int -sample 2x2 $IMGDIR/${basename}.bmp >$OUTDIR/${basename}_420_accurate_cjpeg.jpg
$EXEDIR/cjpeg -quality 95 -dct int -sample 2x1 $IMGDIR/${basename}.bmp >$OUTDIR/${basename}_422_accurate_cjpeg.jpg
$EXEDIR/cjpeg -quality 95 -dct int -sample 1x1 $IMGDIR/${basename}.bmp >$OUTDIR/${basename}_444_accurate_cjpeg.jpg
for samp in GRAY 420 422 444; do
$EXEDIR/djpeg -rgb -bmp $OUTDIR/${basename}_${samp}_fast_cjpeg.jpg >$OUTDIR/${basename}_${samp}_default_djpeg.bmp
$EXEDIR/djpeg -dct fast -rgb -bmp $OUTDIR/${basename}_${samp}_fast_cjpeg.jpg >$OUTDIR/${basename}_${samp}_fast_djpeg.bmp
$EXEDIR/djpeg -dct int -rgb -bmp $OUTDIR/${basename}_${samp}_accurate_cjpeg.jpg >$OUTDIR/${basename}_${samp}_accurate_djpeg.bmp
done
for samp in 420 422; do
$EXEDIR/djpeg -nosmooth -bmp $OUTDIR/${basename}_${samp}_fast_cjpeg.jpg >$OUTDIR/${basename}_${samp}_default_nosmooth_djpeg.bmp
$EXEDIR/djpeg -dct fast -nosmooth -bmp $OUTDIR/${basename}_${samp}_fast_cjpeg.jpg >$OUTDIR/${basename}_${samp}_fast_nosmooth_djpeg.bmp
$EXEDIR/djpeg -dct int -nosmooth -bmp $OUTDIR/${basename}_${samp}_accurate_cjpeg.jpg >$OUTDIR/${basename}_${samp}_accurate_nosmooth_djpeg.bmp
done
# Compression
for dct in accurate fast; do
runme $JAVA TJBench $OUTDIR/$image 95 -rgb -quiet -benchtime 0.01 -${dct}dct
for samp in GRAY 420 422 444; do
runme cmp $OUTDIR/${basename}_${samp}_Q95.jpg $OUTDIR/${basename}_${samp}_${dct}_cjpeg.jpg
done
done
for dct in fast accurate default; do
dctarg=-${dct}dct
if [ "${dct}" = "default" ]; then
dctarg=
fi
# Tiled compression & decompression
runme $JAVA TJBench $OUTDIR/$image 95 -rgb -tile -quiet -benchtime 0.01 ${dctarg}
for samp in GRAY 444; do
for i in $OUTDIR/${basename}_${samp}_Q95_[0-9]*[0-9]x[0-9]*[0-9].bmp \
$OUTDIR/${basename}_${samp}_Q95_full.bmp; do
runme cmp -i 54:54 $i $OUTDIR/${basename}_${samp}_${dct}_djpeg.bmp
rm $i
done
done
runme $JAVA TJBench $OUTDIR/$image 95 -rgb -tile -quiet -benchtime 0.01 -fastupsample ${dctarg}
for samp in 420 422; do
for i in $OUTDIR/${basename}_${samp}_Q95_[0-9]*[0-9]x[0-9]*[0-9].bmp \
$OUTDIR/${basename}_${samp}_Q95_full.bmp; do
runme cmp -i 54:54 $i $OUTDIR/${basename}_${samp}_${dct}_nosmooth_djpeg.bmp
rm $i
done
done
# Tiled decompression
for samp in GRAY 444; do
runme $JAVA TJBench $OUTDIR/${basename}_${samp}_Q95.jpg -tile -quiet -benchtime 0.01 ${dctarg}
for i in $OUTDIR/${basename}_${samp}_Q95_[0-9]*[0-9]x[0-9]*[0-9].bmp \
$OUTDIR/${basename}_${samp}_Q95_full.bmp; do
runme cmp -i 54:54 $i $OUTDIR/${basename}_${samp}_${dct}_djpeg.bmp
rm $i
done
done
for samp in 420 422; do
runme $JAVA TJBench $OUTDIR/${basename}_${samp}_Q95.jpg -tile -quiet -benchtime 0.01 -fastupsample ${dctarg}
for i in $OUTDIR/${basename}_${samp}_Q95_[0-9]*[0-9]x[0-9]*[0-9].bmp \
$OUTDIR/${basename}_${samp}_Q95_full.bmp; do
runme cmp $i -i 54:54 $OUTDIR/${basename}_${samp}_${dct}_nosmooth_djpeg.bmp
rm $i
done
done
done
# Scaled decompression
for scale in 2_1 15_8 7_4 13_8 3_2 11_8 5_4 9_8 7_8 3_4 5_8 1_2 3_8 1_4 1_8; do
scalearg=`echo $scale | sed s@_@/@g`
for samp in GRAY 420 422 444; do
$EXEDIR/djpeg -rgb -scale ${scalearg} -bmp $OUTDIR/${basename}_${samp}_fast_cjpeg.jpg >$OUTDIR/${basename}_${samp}_${scale}_djpeg.bmp
runme $JAVA TJBench $OUTDIR/${basename}_${samp}_Q95.jpg -scale ${scalearg} -quiet -benchtime 0.01
runme cmp -i 54:54 $OUTDIR/${basename}_${samp}_Q95_${scale}.bmp $OUTDIR/${basename}_${samp}_${scale}_djpeg.bmp
rm $OUTDIR/${basename}_${samp}_Q95_${scale}.bmp
done
done
# Transforms
for samp in GRAY 420 422 444; do
$EXEDIR/jpegtran -flip horizontal -trim $OUTDIR/${basename}_${samp}_Q95.jpg >$OUTDIR/${basename}_${samp}_hflip_jpegtran.jpg
$EXEDIR/jpegtran -flip vertical -trim $OUTDIR/${basename}_${samp}_Q95.jpg >$OUTDIR/${basename}_${samp}_vflip_jpegtran.jpg
$EXEDIR/jpegtran -transpose -trim $OUTDIR/${basename}_${samp}_Q95.jpg >$OUTDIR/${basename}_${samp}_transpose_jpegtran.jpg
$EXEDIR/jpegtran -transverse -trim $OUTDIR/${basename}_${samp}_Q95.jpg >$OUTDIR/${basename}_${samp}_transverse_jpegtran.jpg
$EXEDIR/jpegtran -rotate 90 -trim $OUTDIR/${basename}_${samp}_Q95.jpg >$OUTDIR/${basename}_${samp}_rot90_jpegtran.jpg
$EXEDIR/jpegtran -rotate 180 -trim $OUTDIR/${basename}_${samp}_Q95.jpg >$OUTDIR/${basename}_${samp}_rot180_jpegtran.jpg
$EXEDIR/jpegtran -rotate 270 -trim $OUTDIR/${basename}_${samp}_Q95.jpg >$OUTDIR/${basename}_${samp}_rot270_jpegtran.jpg
done
for xform in hflip vflip transpose transverse rot90 rot180 rot270; do
for samp in GRAY 444; do
$EXEDIR/djpeg -rgb -bmp $OUTDIR/${basename}_${samp}_${xform}_jpegtran.jpg >$OUTDIR/${basename}_${samp}_${xform}_jpegtran.bmp
runme $JAVA TJBench $OUTDIR/${basename}_${samp}_Q95.jpg -$xform -tile -quiet -benchtime 0.01
for i in $OUTDIR/${basename}_${samp}_Q95_[0-9]*[0-9]x[0-9]*[0-9].bmp \
$OUTDIR/${basename}_${samp}_Q95_full.bmp; do
runme cmp -i 54:54 $i $OUTDIR/${basename}_${samp}_${xform}_jpegtran.bmp
rm $i
done
done
for samp in 420 422; do
$EXEDIR/djpeg -nosmooth -rgb -bmp $OUTDIR/${basename}_${samp}_${xform}_jpegtran.jpg >$OUTDIR/${basename}_${samp}_${xform}_jpegtran.bmp
runme $JAVA TJBench $OUTDIR/${basename}_${samp}_Q95.jpg -$xform -tile -quiet -benchtime 0.01 -fastupsample
for i in $OUTDIR/${basename}_${samp}_Q95_[0-9]*[0-9]x[0-9]*[0-9].bmp \
$OUTDIR/${basename}_${samp}_Q95_full.bmp; do
runme cmp -i 54:54 $i $OUTDIR/${basename}_${samp}_${xform}_jpegtran.bmp
rm $i
done
done
done
# Grayscale transform
for xform in hflip vflip transpose transverse rot90 rot180 rot270; do
for samp in GRAY 444 422 420; do
runme $JAVA TJBench $OUTDIR/${basename}_${samp}_Q95.jpg -$xform -tile -quiet -benchtime 0.01 -grayscale
for i in $OUTDIR/${basename}_${samp}_Q95_[0-9]*[0-9]x[0-9]*[0-9].bmp \
$OUTDIR/${basename}_${samp}_Q95_full.bmp; do
runme cmp -i 54:54 $i $OUTDIR/${basename}_GRAY_${xform}_jpegtran.bmp
rm $i
done
done
done
# Transforms with scaling
for xform in hflip vflip transpose transverse rot90 rot180 rot270; do
for samp in GRAY 444 422 420; do
for scale in 2_1 15_8 7_4 13_8 3_2 11_8 5_4 9_8 7_8 3_4 5_8 1_2 3_8 1_4 1_8; do
scalearg=`echo $scale | sed s@_@/@g`
$EXEDIR/djpeg -rgb -scale ${scalearg} -bmp $OUTDIR/${basename}_${samp}_${xform}_jpegtran.jpg >$OUTDIR/${basename}_${samp}_${xform}_${scale}_jpegtran.bmp
runme $JAVA TJBench $OUTDIR/${basename}_${samp}_Q95.jpg -$xform -scale ${scalearg} -quiet -benchtime 0.01
runme cmp -i 54:54 $OUTDIR/${basename}_${samp}_Q95_${scale}.bmp $OUTDIR/${basename}_${samp}_${xform}_${scale}_jpegtran.bmp
rm $OUTDIR/${basename}_${samp}_Q95_${scale}.bmp
done
done
done
done
echo SUCCESS!

127
turbojpeg-jni.c
View File

@@ -41,7 +41,16 @@
goto bailout; \
}
#define bailif0(f) {if(!(f)) goto bailout;}
#ifdef WIN32
#define snprintf(str, n, format, ...) \
_snprintf_s(str, n, _TRUNCATE, format, __VA_ARGS__)
#endif
#define bailif0(f) {if(!(f)) { \
char temps[80]; \
snprintf(temps, 80, "Unexpected NULL condition in line %d", __LINE__); \
_throw(temps); \
}}
#define gethandle() \
jclass _cls=(*env)->GetObjectClass(env, obj); \
@@ -88,13 +97,14 @@ JNIEXPORT void JNICALL Java_org_libjpegturbo_turbojpeg_TJCompressor_init
return;
}
JNIEXPORT jint JNICALL Java_org_libjpegturbo_turbojpeg_TJCompressor_compress___3BIIII_3BIII
(JNIEnv *env, jobject obj, jbyteArray src, jint width, jint pitch,
jint height, jint pf, jbyteArray dst, jint jpegSubsamp, jint jpegQual,
jint flags)
JNIEXPORT jint JNICALL Java_org_libjpegturbo_turbojpeg_TJCompressor_compress___3BIIIIII_3BIII
(JNIEnv *env, jobject obj, jbyteArray src, jint x, jint y, jint width,
jint pitch, jint height, jint pf, jbyteArray dst, jint jpegSubsamp,
jint jpegQual, jint flags)
{
tjhandle handle=0;
unsigned long jpegSize=0; jsize arraySize=0;
unsigned long jpegSize=0;
jsize arraySize=0, actualPitch;
unsigned char *srcBuf=NULL, *jpegBuf=NULL;
gethandle();
@@ -105,7 +115,8 @@ JNIEXPORT jint JNICALL Java_org_libjpegturbo_turbojpeg_TJCompressor_compress___3
if(org_libjpegturbo_turbojpeg_TJ_NUMPF!=TJ_NUMPF)
_throw("Mismatch between Java and C API");
arraySize=(pitch==0)? width*tjPixelSize[pf]*height:pitch*height;
actualPitch=(pitch==0)? width*tjPixelSize[pf]:pitch;
arraySize=(y+height-1)*actualPitch + x+width;
if((*env)->GetArrayLength(env, src)<arraySize)
_throw("Source buffer is not large enough");
jpegSize=tjBufSize(width, height, jpegSubsamp);
@@ -115,8 +126,66 @@ JNIEXPORT jint JNICALL Java_org_libjpegturbo_turbojpeg_TJCompressor_compress___3
bailif0(srcBuf=(*env)->GetPrimitiveArrayCritical(env, src, 0));
bailif0(jpegBuf=(*env)->GetPrimitiveArrayCritical(env, dst, 0));
if(tjCompress2(handle, srcBuf, width, pitch, height, pf, &jpegBuf,
&jpegSize, jpegSubsamp, jpegQual, flags|TJFLAG_NOREALLOC)==-1)
if(tjCompress2(handle, &srcBuf[y*actualPitch + x*tjPixelSize[pf]], width,
pitch, height, pf, &jpegBuf, &jpegSize, jpegSubsamp, jpegQual,
flags|TJFLAG_NOREALLOC)==-1)
{
(*env)->ReleasePrimitiveArrayCritical(env, dst, jpegBuf, 0);
(*env)->ReleasePrimitiveArrayCritical(env, src, srcBuf, 0);
jpegBuf=srcBuf=NULL;
_throw(tjGetErrorStr());
}
bailout:
if(jpegBuf) (*env)->ReleasePrimitiveArrayCritical(env, dst, jpegBuf, 0);
if(srcBuf) (*env)->ReleasePrimitiveArrayCritical(env, src, srcBuf, 0);
return (jint)jpegSize;
}
JNIEXPORT jint JNICALL Java_org_libjpegturbo_turbojpeg_TJCompressor_compress___3BIIII_3BIII
(JNIEnv *env, jobject obj, jbyteArray src, jint width, jint pitch,
jint height, jint pf, jbyteArray dst, jint jpegSubsamp, jint jpegQual,
jint flags)
{
return Java_org_libjpegturbo_turbojpeg_TJCompressor_compress___3BIIIIII_3BIII(
env, obj, src, 0, 0, width, pitch, height, pf, dst, jpegSubsamp, jpegQual,
flags);
}
JNIEXPORT jint JNICALL Java_org_libjpegturbo_turbojpeg_TJCompressor_compress___3IIIIIII_3BIII
(JNIEnv *env, jobject obj, jintArray src, jint x, jint y, jint width,
jint stride, jint height, jint pf, jbyteArray dst, jint jpegSubsamp,
jint jpegQual, jint flags)
{
tjhandle handle=0;
unsigned long jpegSize=0;
jsize arraySize=0, actualStride;
unsigned char *srcBuf=NULL, *jpegBuf=NULL;
gethandle();
if(pf<0 || pf>=org_libjpegturbo_turbojpeg_TJ_NUMPF || width<1 || height<1
|| stride<0)
_throw("Invalid argument in compress()");
if(org_libjpegturbo_turbojpeg_TJ_NUMPF!=TJ_NUMPF)
_throw("Mismatch between Java and C API");
if(tjPixelSize[pf]!=sizeof(jint))
_throw("Pixel format must be 32-bit when compressing from an integer buffer.");
actualStride=(stride==0)? width:stride;
arraySize=(y+height-1)*actualStride + x+width;
if((*env)->GetArrayLength(env, src)<arraySize)
_throw("Source buffer is not large enough");
jpegSize=tjBufSize(width, height, jpegSubsamp);
if((*env)->GetArrayLength(env, dst)<(jsize)jpegSize)
_throw("Destination buffer is not large enough");
bailif0(srcBuf=(*env)->GetPrimitiveArrayCritical(env, src, 0));
bailif0(jpegBuf=(*env)->GetPrimitiveArrayCritical(env, dst, 0));
if(tjCompress2(handle, &srcBuf[(y*actualStride + x)*sizeof(int)], width,
stride*sizeof(jint), height, pf, &jpegBuf, &jpegSize, jpegSubsamp,
jpegQual, flags|TJFLAG_NOREALLOC)==-1)
{
(*env)->ReleasePrimitiveArrayCritical(env, dst, jpegBuf, 0);
(*env)->ReleasePrimitiveArrayCritical(env, src, srcBuf, 0);
@@ -135,43 +204,9 @@ JNIEXPORT jint JNICALL Java_org_libjpegturbo_turbojpeg_TJCompressor_compress___3
jint height, jint pf, jbyteArray dst, jint jpegSubsamp, jint jpegQual,
jint flags)
{
tjhandle handle=0;
unsigned long jpegSize=0; jsize arraySize=0;
unsigned char *srcBuf=NULL, *jpegBuf=NULL;
gethandle();
if(pf<0 || pf>=org_libjpegturbo_turbojpeg_TJ_NUMPF || width<1 || height<1
|| pitch<0)
_throw("Invalid argument in compress()");
if(org_libjpegturbo_turbojpeg_TJ_NUMPF!=TJ_NUMPF)
_throw("Mismatch between Java and C API");
if(tjPixelSize[pf]!=sizeof(jint))
_throw("Pixel format must be 32-bit when compressing from an integer buffer.");
arraySize=(pitch==0)? width*height:pitch*height;
if((*env)->GetArrayLength(env, src)<arraySize)
_throw("Source buffer is not large enough");
jpegSize=tjBufSize(width, height, jpegSubsamp);
if((*env)->GetArrayLength(env, dst)<(jsize)jpegSize)
_throw("Destination buffer is not large enough");
bailif0(srcBuf=(*env)->GetPrimitiveArrayCritical(env, src, 0));
bailif0(jpegBuf=(*env)->GetPrimitiveArrayCritical(env, dst, 0));
if(tjCompress2(handle, srcBuf, width, pitch*sizeof(jint), height, pf,
&jpegBuf, &jpegSize, jpegSubsamp, jpegQual, flags|TJFLAG_NOREALLOC)==-1)
{
(*env)->ReleasePrimitiveArrayCritical(env, dst, jpegBuf, 0);
(*env)->ReleasePrimitiveArrayCritical(env, src, srcBuf, 0);
jpegBuf=srcBuf=NULL;
_throw(tjGetErrorStr());
}
bailout:
if(jpegBuf) (*env)->ReleasePrimitiveArrayCritical(env, dst, jpegBuf, 0);
if(srcBuf) (*env)->ReleasePrimitiveArrayCritical(env, src, srcBuf, 0);
return (jint)jpegSize;
return Java_org_libjpegturbo_turbojpeg_TJCompressor_compress___3IIIIIII_3BIII(
env, obj, src, 0, 0, width, pitch, height, pf, dst, jpegSubsamp, jpegQual,
flags);
}
JNIEXPORT void JNICALL Java_org_libjpegturbo_turbojpeg_TJCompressor_encodeYUV___3BIIII_3BII

2
turbojpeg-mapfile.jni
View File

@@ -40,7 +40,9 @@ TURBOJPEG_1.2
Java_org_libjpegturbo_turbojpeg_TJ_getScalingFactors;
Java_org_libjpegturbo_turbojpeg_TJCompressor_init;
Java_org_libjpegturbo_turbojpeg_TJCompressor_compress___3BIIII_3BIII;
Java_org_libjpegturbo_turbojpeg_TJCompressor_compress___3BIIIIII_3BIII;
Java_org_libjpegturbo_turbojpeg_TJCompressor_compress___3IIIII_3BIII;
Java_org_libjpegturbo_turbojpeg_TJCompressor_compress___3IIIIIII_3BIII;
Java_org_libjpegturbo_turbojpeg_TJCompressor_encodeYUV___3BIIII_3BII;
Java_org_libjpegturbo_turbojpeg_TJCompressor_encodeYUV___3IIIII_3BII;
Java_org_libjpegturbo_turbojpeg_TJCompressor_destroy;