ryan/mozjpeg
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

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
This commit is contained in:
DRC
2012-09-24 02:27:55 +00:00
parent a6c9eaf155
commit 70d3c1aeec
31 changed files with 1405 additions and 121 deletions
Download Patch File Download Diff File Expand all files Collapse all files

5
ChangeLog.txt
View File

@@ -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, Linux distro maintainers will blindly reject any library that is not versioned,
so this was an attempt to make them happy. so this was an attempt to make them happy.
[3] Extended the TurboJPEG Java API so that it can be used to decompress a [3] Extended the TurboJPEG Java API so that it can be used to compress a JPEG
JPEG image into an arbitrary position in a large output buffer. 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. [4] The tjDecompressToYUV() function now supports the TJFLAG_FASTDCT flag.

2
Makefile.am
View File

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

1
configure.ac
View File

@@ -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/Info.plist:release/Info.plist.in])
AC_CONFIG_FILES([pkgscripts/uninstall:release/uninstall.in]) AC_CONFIG_FILES([pkgscripts/uninstall:release/uninstall.in])
AC_CONFIG_FILES([tjbenchtest]) AC_CONFIG_FILES([tjbenchtest])
AC_CONFIG_FILES([tjbenchtest.java])
AC_CONFIG_FILES([tjexampletest]) AC_CONFIG_FILES([tjexampletest])
AC_CONFIG_FILES([libjpeg.map]) AC_CONFIG_FILES([libjpeg.map])
AC_CONFIG_FILES([Makefile simd/Makefile]) AC_CONFIG_FILES([Makefile simd/Makefile])

3
java/CMakeLists.txt
View File

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

6
java/Makefile.am
View File

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

863
java/TJBench.java Normal file
View File

@@ -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
java/doc/allclasses-frame.html
View File

@@ -2,12 +2,12 @@
<!--NewPage--> <!--NewPage-->
<HTML> <HTML>
<HEAD> <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> <TITLE>
All Classes All Classes
</TITLE> </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"> <LINK REL ="stylesheet" TYPE="text/css" HREF="stylesheet.css" TITLE="Style">

4
java/doc/allclasses-noframe.html
View File

@@ -2,12 +2,12 @@
<!--NewPage--> <!--NewPage-->
<HTML> <HTML>
<HEAD> <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> <TITLE>
All Classes All Classes
</TITLE> </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"> <LINK REL ="stylesheet" TYPE="text/css" HREF="stylesheet.css" TITLE="Style">

4
java/doc/constant-values.html
View File

@@ -2,12 +2,12 @@
<!--NewPage--> <!--NewPage-->
<HTML> <HTML>
<HEAD> <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> <TITLE>
Constant Field Values Constant Field Values
</TITLE> </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"> <LINK REL ="stylesheet" TYPE="text/css" HREF="stylesheet.css" TITLE="Style">

4
java/doc/deprecated-list.html
View File

@@ -2,12 +2,12 @@
<!--NewPage--> <!--NewPage-->
<HTML> <HTML>
<HEAD> <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> <TITLE>
Deprecated List Deprecated List
</TITLE> </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"> <LINK REL ="stylesheet" TYPE="text/css" HREF="stylesheet.css" TITLE="Style">

4
java/doc/help-doc.html
View File

@@ -2,12 +2,12 @@
<!--NewPage--> <!--NewPage-->
<HTML> <HTML>
<HEAD> <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> <TITLE>
API Help API Help
</TITLE> </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"> <LINK REL ="stylesheet" TYPE="text/css" HREF="stylesheet.css" TITLE="Style">

12
java/doc/index-all.html
View File

@@ -2,12 +2,12 @@
<!--NewPage--> <!--NewPage-->
<HTML> <HTML>
<HEAD> <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> <TITLE>
Index Index
</TITLE> </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"> <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> - <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> 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. <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> - <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> 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. <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. <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> - <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> 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 <DD>Create a TurboJPEG compressor instance and associate the uncompressed
source image stored in <code>srcImage</code> with the newly-created source image stored in <code>srcImage</code> with the newly-created
instance. instance.

2
java/doc/index.html
View File

@@ -2,7 +2,7 @@
<!--NewPage--> <!--NewPage-->
<HTML> <HTML>
<HEAD> <HEAD>
<!-- Generated by javadoc on Fri Jun 29 18:36:27 CDT 2012--> <!-- Generated by javadoc on Sun Sep 23 19:56:07 CDT 2012-->
<TITLE> <TITLE>
Generated Documentation (Untitled) Generated Documentation (Untitled)
</TITLE> </TITLE>

4
java/doc/org/libjpegturbo/turbojpeg/TJ.html
View File

@@ -2,12 +2,12 @@
<!--NewPage--> <!--NewPage-->
<HTML> <HTML>
<HEAD> <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> <TITLE>
TJ TJ
</TITLE> </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"> <LINK REL ="stylesheet" TYPE="text/css" HREF="../../../stylesheet.css" TITLE="Style">

110
java/doc/org/libjpegturbo/turbojpeg/TJCompressor.html
View File

@@ -2,12 +2,12 @@
<!--NewPage--> <!--NewPage-->
<HTML> <HTML>
<HEAD> <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> <TITLE>
TJCompressor TJCompressor
</TITLE> </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"> <LINK REL ="stylesheet" TYPE="text/css" HREF="../../../stylesheet.css" TITLE="Style">
@@ -128,6 +128,20 @@ TurboJPEG compressor
int&nbsp;height, int&nbsp;height,
int&nbsp;pixelFormat)</CODE> 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> <BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Create a TurboJPEG compressor instance and associate the uncompressed &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 source image stored in <code>srcImage</code> with the newly-created
@@ -265,6 +279,20 @@ TurboJPEG compressor
int&nbsp;height, int&nbsp;height,
int&nbsp;pixelFormat)</CODE> 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> <BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Associate an uncompressed source image with this compressor instance.</TD> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Associate an uncompressed source image with this compressor instance.</TD>
</TR> </TR>
@@ -330,7 +358,30 @@ public <B>TJCompressor</B>(byte[]&nbsp;srcImage,
instance. instance.
<P> <P>
<DL> <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> <DT><B>Throws:</B>
<DD><CODE>java.lang.Exception</CODE></DL> <DD><CODE>java.lang.Exception</CODE></DL>
</DL> </DL>
@@ -345,6 +396,41 @@ public <B>TJCompressor</B>(byte[]&nbsp;srcImage,
</TR> </TR>
</TABLE> </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> <A NAME="setSourceImage(byte[], int, int, int, int)"><!-- --></A><H3>
setSourceImage</H3> setSourceImage</H3>
<PRE> <PRE>
@@ -358,15 +444,15 @@ public void <B>setSourceImage</B>(byte[]&nbsp;srcImage,
<DD>Associate an uncompressed source image with this compressor instance. <DD>Associate an uncompressed source image with this compressor instance.
<P> <P>
<DD><DL> <DD><DL>
<DT><B>Parameters:</B><DD><CODE>srcImage</CODE> - image buffer containing RGB or grayscale pixels to be <DT><B>Parameters:</B><DD><CODE>srcImage</CODE> - see
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 <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
<code>width * TJ.pixelSize(pixelFormat)</code> if the source image is description<DD><CODE>width</CODE> - see
unpadded, but you can use this parameter to, for instance, specify that <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
the scanlines in the source image are padded to 4-byte boundaries, as is description<DD><CODE>pitch</CODE> - see
the case for Windows bitmaps. You can also be clever and use this <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
parameter to skip lines, etc. Setting this parameter to 0 is the description<DD><CODE>height</CODE> - see
equivalent of setting it to <code>width * <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
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 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>) <A HREF="../../../org/libjpegturbo/turbojpeg/TJ.html" title="class in org.libjpegturbo.turbojpeg"><CODE>TJ.PF_*</CODE></A>)
<DT><B>Throws:</B> <DT><B>Throws:</B>
<DD><CODE>java.lang.Exception</CODE></DL> <DD><CODE>java.lang.Exception</CODE></DL>

4
java/doc/org/libjpegturbo/turbojpeg/TJCustomFilter.html
View File

@@ -2,12 +2,12 @@
<!--NewPage--> <!--NewPage-->
<HTML> <HTML>
<HEAD> <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> <TITLE>
TJCustomFilter TJCustomFilter
</TITLE> </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"> <LINK REL ="stylesheet" TYPE="text/css" HREF="../../../stylesheet.css" TITLE="Style">

4
java/doc/org/libjpegturbo/turbojpeg/TJDecompressor.html
View File

@@ -2,12 +2,12 @@
<!--NewPage--> <!--NewPage-->
<HTML> <HTML>
<HEAD> <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> <TITLE>
TJDecompressor TJDecompressor
</TITLE> </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"> <LINK REL ="stylesheet" TYPE="text/css" HREF="../../../stylesheet.css" TITLE="Style">

4
java/doc/org/libjpegturbo/turbojpeg/TJScalingFactor.html
View File

@@ -2,12 +2,12 @@
<!--NewPage--> <!--NewPage-->
<HTML> <HTML>
<HEAD> <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> <TITLE>
TJScalingFactor TJScalingFactor
</TITLE> </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"> <LINK REL ="stylesheet" TYPE="text/css" HREF="../../../stylesheet.css" TITLE="Style">

4
java/doc/org/libjpegturbo/turbojpeg/TJTransform.html
View File

@@ -2,12 +2,12 @@
<!--NewPage--> <!--NewPage-->
<HTML> <HTML>
<HEAD> <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> <TITLE>
TJTransform TJTransform
</TITLE> </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"> <LINK REL ="stylesheet" TYPE="text/css" HREF="../../../stylesheet.css" TITLE="Style">

4
java/doc/org/libjpegturbo/turbojpeg/TJTransformer.html
View File

@@ -2,12 +2,12 @@
<!--NewPage--> <!--NewPage-->
<HTML> <HTML>
<HEAD> <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> <TITLE>
TJTransformer TJTransformer
</TITLE> </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"> <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--> <!--NewPage-->
<HTML> <HTML>
<HEAD> <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> <TITLE>
org.libjpegturbo.turbojpeg org.libjpegturbo.turbojpeg
</TITLE> </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"> <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--> <!--NewPage-->
<HTML> <HTML>
<HEAD> <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> <TITLE>
org.libjpegturbo.turbojpeg org.libjpegturbo.turbojpeg
</TITLE> </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"> <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--> <!--NewPage-->
<HTML> <HTML>
<HEAD> <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> <TITLE>
org.libjpegturbo.turbojpeg Class Hierarchy org.libjpegturbo.turbojpeg Class Hierarchy
</TITLE> </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"> <LINK REL ="stylesheet" TYPE="text/css" HREF="../../../stylesheet.css" TITLE="Style">

4
java/doc/overview-tree.html
View File

@@ -2,12 +2,12 @@
<!--NewPage--> <!--NewPage-->
<HTML> <HTML>
<HEAD> <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> <TITLE>
Class Hierarchy Class Hierarchy
</TITLE> </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"> <LINK REL ="stylesheet" TYPE="text/css" HREF="stylesheet.css" TITLE="Style">

4
java/doc/serialized-form.html
View File

@@ -2,12 +2,12 @@
<!--NewPage--> <!--NewPage-->
<HTML> <HTML>
<HEAD> <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> <TITLE>
Serialized Form Serialized Form
</TITLE> </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"> <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 * Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met: * modification, are permitted provided that the following conditions are met:
@@ -66,33 +66,65 @@ public class TJCompressor {
setSourceImage(srcImage, width, pitch, height, pixelFormat); 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. * Associate an uncompressed source image with this compressor instance.
* *
* @param srcImage image buffer containing RGB or grayscale pixels to be * @param srcImage image buffer containing RGB or grayscale pixels to be
* compressed * 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 * @param pitch bytes per line of the source image. Normally, this should be
* <code>width * TJ.pixelSize(pixelFormat)</code> if the source image is * <code>width * TJ.pixelSize(pixelFormat)</code> if the source image is
* unpadded, but you can use this parameter to, for instance, specify that * 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 scanlines in the source image are padded to a 4-byte boundary or to
* the case for Windows bitmaps. You can also be clever and use this * compress a JPEG image from a region of a larger source image. You can
* parameter to skip lines, etc. Setting this parameter to 0 is the * also be clever and use this parameter to skip lines, etc. Setting this
* equivalent of setting it to <code>width * * parameter to 0 is the equivalent of setting it to <code>width *
* TJ.pixelSize(pixelFormat)</code>. * 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 * @param pixelFormat pixel format of the source image (one of
* {@link TJ TJ.PF_*}) * {@link TJ TJ.PF_*})
*/ */
public void setSourceImage(byte[] srcImage, int width, int pitch, public void setSourceImage(byte[] srcImage, int x, int y, int width,
int height, int pixelFormat) throws Exception { int pitch, int height, int pixelFormat) throws Exception {
if(handle == 0) init(); if(handle == 0) init();
if(srcImage == null || width < 1 || height < 1 || pitch < 0 if(srcImage == null || x < 0 || y < 0 || width < 1 || height < 1
|| pixelFormat < 0 || pixelFormat >= TJ.NUMPF) || pitch < 0 || pixelFormat < 0 || pixelFormat >= TJ.NUMPF)
throw new Exception("Invalid argument in setSourceImage()"); throw new Exception("Invalid argument in setSourceImage()");
srcBuf = srcImage; srcBuf = srcImage;
srcWidth = width; srcWidth = width;
@@ -100,8 +132,40 @@ public class TJCompressor {
else srcPitch = pitch; else srcPitch = pitch;
srcHeight = height; srcHeight = height;
srcPixelFormat = pixelFormat; 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 * Set the level of chrominance subsampling for subsequent compress/encode
* operations. * operations.
@@ -143,8 +207,12 @@ public class TJCompressor {
if(srcBuf == null) throw new Exception(NO_ASSOC_ERROR); if(srcBuf == null) throw new Exception(NO_ASSOC_ERROR);
if(jpegQuality < 0) throw new Exception("JPEG Quality not set"); if(jpegQuality < 0) throw new Exception("JPEG Quality not set");
if(subsamp < 0) throw new Exception("Subsampling level not set"); if(subsamp < 0) throw new Exception("Subsampling level not set");
compressedSize = compress(srcBuf, srcWidth, srcPitch, if (srcX >= 0 && srcY >= 0)
srcHeight, srcPixelFormat, dstBuf, subsamp, jpegQuality, flags); 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(); int pitch = sm.getScanlineStride();
DataBufferInt db = (DataBufferInt)wr.getDataBuffer(); DataBufferInt db = (DataBufferInt)wr.getDataBuffer();
int[] buf = db.getData(); int[] buf = db.getData();
compressedSize = compress(buf, width, pitch, height, pixelFormat, dstBuf, if (srcX >= 0 && srcY >= 0)
subsamp, jpegQuality, flags); 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 { else {
ComponentSampleModel sm = ComponentSampleModel sm =
@@ -233,8 +305,12 @@ public class TJCompressor {
int pitch = sm.getScanlineStride(); int pitch = sm.getScanlineStride();
DataBufferByte db = (DataBufferByte)wr.getDataBuffer(); DataBufferByte db = (DataBufferByte)wr.getDataBuffer();
byte[] buf = db.getData(); byte[] buf = db.getData();
compressedSize = compress(buf, width, pitch, height, pixelFormat, dstBuf, if (srcX >= 0 && srcY >= 0)
subsamp, jpegQuality, flags); 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 // JPEG size in bytes is returned
private native int compress(byte[] srcBuf, int width, int pitch, 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; int flags) throws Exception;
private native int compress(int[] srcBuf, int width, int pitch, private native int compress(byte[] srcBuf, int x, int y, int width,
int height, int pixelFormat, byte[] dstbuf, int jpegSubsamp, int jpegQual, 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; 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, 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; throws Exception;
private native void encodeYUV(int[] srcBuf, int width, int pitch, 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; throws Exception;
static { static {
@@ -461,6 +545,8 @@ public class TJCompressor {
private byte[] srcBuf = null; private byte[] srcBuf = null;
private int srcWidth = 0; private int srcWidth = 0;
private int srcHeight = 0; private int srcHeight = 0;
private int srcX = -1;
private int srcY = -1;
private int srcPitch = 0; private int srcPitch = 0;
private int srcPixelFormat = -1; private int srcPixelFormat = -1;
private int subsamp = -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 #define org_libjpegturbo_turbojpeg_TJ_FLAG_FORCESSE3 128L
#undef org_libjpegturbo_turbojpeg_TJ_FLAG_FASTUPSAMPLE #undef org_libjpegturbo_turbojpeg_TJ_FLAG_FASTUPSAMPLE
#define org_libjpegturbo_turbojpeg_TJ_FLAG_FASTUPSAMPLE 256L #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 * Class: org_libjpegturbo_turbojpeg_TJ
* Method: bufSize * 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 JNIEXPORT jint JNICALL Java_org_libjpegturbo_turbojpeg_TJCompressor_compress___3BIIII_3BIII
(JNIEnv *, jobject, jbyteArray, jint, jint, jint, jint, jbyteArray, jint, jint, jint); (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 * Class: org_libjpegturbo_turbojpeg_TJCompressor
* Method: compress * 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 JNIEXPORT jint JNICALL Java_org_libjpegturbo_turbojpeg_TJCompressor_compress___3IIIII_3BIII
(JNIEnv *, jobject, jintArray, jint, jint, jint, jint, jbyteArray, jint, jint, jint); (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 * Class: org_libjpegturbo_turbojpeg_TJCompressor
* Method: encodeYUV * 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; \ 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() \ #define gethandle() \
jclass _cls=(*env)->GetObjectClass(env, obj); \ jclass _cls=(*env)->GetObjectClass(env, obj); \
@@ -88,13 +97,14 @@ JNIEXPORT void JNICALL Java_org_libjpegturbo_turbojpeg_TJCompressor_init
return; return;
} }
JNIEXPORT jint JNICALL Java_org_libjpegturbo_turbojpeg_TJCompressor_compress___3BIIII_3BIII JNIEXPORT jint JNICALL Java_org_libjpegturbo_turbojpeg_TJCompressor_compress___3BIIIIII_3BIII
(JNIEnv *env, jobject obj, jbyteArray src, jint width, jint pitch, (JNIEnv *env, jobject obj, jbyteArray src, jint x, jint y, jint width,
jint height, jint pf, jbyteArray dst, jint jpegSubsamp, jint jpegQual, jint pitch, jint height, jint pf, jbyteArray dst, jint jpegSubsamp,
jint flags) jint jpegQual, jint flags)
{ {
tjhandle handle=0; tjhandle handle=0;
unsigned long jpegSize=0; jsize arraySize=0; unsigned long jpegSize=0;
jsize arraySize=0, actualPitch;
unsigned char *srcBuf=NULL, *jpegBuf=NULL; unsigned char *srcBuf=NULL, *jpegBuf=NULL;
gethandle(); gethandle();
@@ -105,7 +115,8 @@ JNIEXPORT jint JNICALL Java_org_libjpegturbo_turbojpeg_TJCompressor_compress___3
if(org_libjpegturbo_turbojpeg_TJ_NUMPF!=TJ_NUMPF) if(org_libjpegturbo_turbojpeg_TJ_NUMPF!=TJ_NUMPF)
_throw("Mismatch between Java and C API"); _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) if((*env)->GetArrayLength(env, src)<arraySize)
_throw("Source buffer is not large enough"); _throw("Source buffer is not large enough");
jpegSize=tjBufSize(width, height, jpegSubsamp); 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(srcBuf=(*env)->GetPrimitiveArrayCritical(env, src, 0));
bailif0(jpegBuf=(*env)->GetPrimitiveArrayCritical(env, dst, 0)); bailif0(jpegBuf=(*env)->GetPrimitiveArrayCritical(env, dst, 0));
if(tjCompress2(handle, srcBuf, width, pitch, height, pf, &jpegBuf, if(tjCompress2(handle, &srcBuf[y*actualPitch + x*tjPixelSize[pf]], width,
&jpegSize, jpegSubsamp, jpegQual, flags|TJFLAG_NOREALLOC)==-1) 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, dst, jpegBuf, 0);
(*env)->ReleasePrimitiveArrayCritical(env, src, srcBuf, 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 height, jint pf, jbyteArray dst, jint jpegSubsamp, jint jpegQual,
jint flags) jint flags)
{ {
tjhandle handle=0; return Java_org_libjpegturbo_turbojpeg_TJCompressor_compress___3IIIIIII_3BIII(
unsigned long jpegSize=0; jsize arraySize=0; env, obj, src, 0, 0, width, pitch, height, pf, dst, jpegSubsamp, jpegQual,
unsigned char *srcBuf=NULL, *jpegBuf=NULL; flags);
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;
} }
JNIEXPORT void JNICALL Java_org_libjpegturbo_turbojpeg_TJCompressor_encodeYUV___3BIIII_3BII 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_TJ_getScalingFactors;
Java_org_libjpegturbo_turbojpeg_TJCompressor_init; Java_org_libjpegturbo_turbojpeg_TJCompressor_init;
Java_org_libjpegturbo_turbojpeg_TJCompressor_compress___3BIIII_3BIII; 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___3IIIII_3BIII;
Java_org_libjpegturbo_turbojpeg_TJCompressor_compress___3IIIIIII_3BIII;
Java_org_libjpegturbo_turbojpeg_TJCompressor_encodeYUV___3BIIII_3BII; Java_org_libjpegturbo_turbojpeg_TJCompressor_encodeYUV___3BIIII_3BII;
Java_org_libjpegturbo_turbojpeg_TJCompressor_encodeYUV___3IIIII_3BII; Java_org_libjpegturbo_turbojpeg_TJCompressor_encodeYUV___3IIIII_3BII;
Java_org_libjpegturbo_turbojpeg_TJCompressor_destroy; Java_org_libjpegturbo_turbojpeg_TJCompressor_destroy;