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Add CMYK support to the TurboJPEG Java API & clean up a few things in the C API

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git-svn-id: svn+ssh://svn.code.sf.net/p/libjpeg-turbo/code/trunk@1020 632fc199-4ca6-4c93-a231-07263d6284db
This commit is contained in:
DRC
2013-08-23 04:45:43 +00:00
parent ee1972febe
commit c0e571289a
18 changed files with 497 additions and 73 deletions
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16
Makefile.am
View File

@@ -196,14 +196,14 @@ MD5_JPEG_CROP = b4197f377e621c4e9b1d20471432610d
test: testclean all
if WITH_TURBOJPEG
#if WITH_JAVA
# $(JAVA) -cp java/turbojpeg.jar -Djava.library.path=.libs TJUnitTest
# $(JAVA) -cp java/turbojpeg.jar -Djava.library.path=.libs TJUnitTest -bi
# $(JAVA) -cp java/turbojpeg.jar -Djava.library.path=.libs TJUnitTest -yuv
# $(JAVA) -cp java/turbojpeg.jar -Djava.library.path=.libs TJUnitTest -yuv -noyuvpad
# $(JAVA) -cp java/turbojpeg.jar -Djava.library.path=.libs TJUnitTest -yuv -bi
# $(JAVA) -cp java/turbojpeg.jar -Djava.library.path=.libs TJUnitTest -yuv -bi -noyuvpad
#endif
if WITH_JAVA
$(JAVA) -cp java/turbojpeg.jar -Djava.library.path=.libs TJUnitTest
$(JAVA) -cp java/turbojpeg.jar -Djava.library.path=.libs TJUnitTest -bi
$(JAVA) -cp java/turbojpeg.jar -Djava.library.path=.libs TJUnitTest -yuv
$(JAVA) -cp java/turbojpeg.jar -Djava.library.path=.libs TJUnitTest -yuv -noyuvpad
$(JAVA) -cp java/turbojpeg.jar -Djava.library.path=.libs TJUnitTest -yuv -bi
$(JAVA) -cp java/turbojpeg.jar -Djava.library.path=.libs TJUnitTest -yuv -bi -noyuvpad
endif
./tjunittest
./tjunittest -alloc
./tjunittest -yuv

95
java/TJUnitTest.java
View File

@@ -61,11 +61,11 @@ public class TJUnitTest {
private static final String[] pixFormatStr = {
"RGB", "BGR", "RGBX", "BGRX", "XBGR", "XRGB", "Grayscale",
"RGBA", "BGRA", "ABGR", "ARGB"
"RGBA", "BGRA", "ABGR", "ARGB", "CMYK"
};
private static final int[] alphaOffset = {
-1, -1, -1, -1, -1, -1, -1, 3, 3, 0, 0
-1, -1, -1, -1, -1, -1, -1, 3, 3, 0, 0, -1
};
private static final int[] _3byteFormats = {
@@ -75,7 +75,7 @@ public class TJUnitTest {
BufferedImage.TYPE_3BYTE_BGR
};
private static final int[] _4byteFormats = {
TJ.PF_RGBX, TJ.PF_BGRX, TJ.PF_XBGR, TJ.PF_XRGB
TJ.PF_RGBX, TJ.PF_BGRX, TJ.PF_XBGR, TJ.PF_XRGB, TJ.PF_CMYK
};
private static final int[] _4byteFormatsBI = {
BufferedImage.TYPE_INT_BGR, BufferedImage.TYPE_INT_RGB,
@@ -165,8 +165,8 @@ public class TJUnitTest {
int ps = TJ.getPixelSize(pf);
int index, row, col, halfway = 16;
Arrays.fill(buf, (byte)0);
if (pf == TJ.PF_GRAY) {
Arrays.fill(buf, (byte)0);
for (row = 0; row < h; row++) {
for (col = 0; col < w; col++) {
if ((flags & TJ.FLAG_BOTTOMUP) != 0)
@@ -181,6 +181,27 @@ public class TJUnitTest {
}
return;
}
if (pf == TJ.PF_CMYK) {
Arrays.fill(buf, (byte)255);
for (row = 0; row < h; row++) {
for (col = 0; col < w; col++) {
if ((flags & TJ.FLAG_BOTTOMUP) != 0)
index = (h - row - 1) * w + col;
else
index = row * w + col;
if (((row / 8) + (col / 8)) % 2 == 0) {
if (row >= halfway) buf[index * ps + 3] = 0;
} else {
buf[index * ps + 2] = 0;
if (row < halfway)
buf[index * ps + 1] = 0;
}
}
}
return;
}
Arrays.fill(buf, (byte)0);
for (row = 0; row < h; row++) {
for (col = 0; col < w; col++) {
if ((flags & TJ.FLAG_BOTTOMUP) != 0)
@@ -299,6 +320,39 @@ public class TJUnitTest {
int blockSize = 8 * sf.getNum() / sf.getDenom();
try {
if (pf == TJ.PF_CMYK) {
for (row = 0; row < h; row++) {
for (col = 0; col < w; col++) {
if ((flags & TJ.FLAG_BOTTOMUP) != 0)
index = (h - row - 1) * w + col;
else
index = row * w + col;
byte c = buf[index * ps];
byte m = buf[index * ps + 1];
byte y = buf[index * ps + 2];
byte k = buf[index * ps + 3];
checkVal255(row, col, c, "C");
if (((row / blockSize) + (col / blockSize)) % 2 == 0) {
checkVal255(row, col, m, "M");
checkVal255(row, col, y, "Y");
if (row < halfway)
checkVal255(row, col, k, "K");
else
checkVal0(row, col, k, "K");
} else {
checkVal0(row, col, y, "Y");
checkVal255(row, col, k, "K");
if (row < halfway)
checkVal0(row, col, m, "M");
else
checkVal255(row, col, m, "M");
}
}
}
return 1;
}
for (row = 0; row < halfway; row++) {
for (col = 0; col < w; col++) {
if ((flags & TJ.FLAG_BOTTOMUP) != 0)
@@ -351,13 +405,25 @@ public class TJUnitTest {
if (retval == 0) {
for (row = 0; row < h; row++) {
for (col = 0; col < w; col++) {
int r = buf[pitch * row + col * ps + roffset];
int g = buf[pitch * row + col * ps + goffset];
int b = buf[pitch * row + col * ps + boffset];
if (r < 0) r += 256;
if (g < 0) g += 256;
if (b < 0) b += 256;
System.out.format("%3d/%3d/%3d ", r, g, b);
if (pf == TJ.PF_CMYK) {
int c = buf[pitch * row + col * ps];
int m = buf[pitch * row + col * ps + 1];
int y = buf[pitch * row + col * ps + 2];
int k = buf[pitch * row + col * ps + 3];
if (c < 0) c += 256;
if (m < 0) m += 256;
if (y < 0) y += 256;
if (k < 0) k += 256;
System.out.format("%3d/%3d/%3d/%3d ", c, m, y, k);
} else {
int r = buf[pitch * row + col * ps + roffset];
int g = buf[pitch * row + col * ps + goffset];
int b = buf[pitch * row + col * ps + boffset];
if (r < 0) r += 256;
if (g < 0) g += 256;
if (b < 0) b += 256;
System.out.format("%3d/%3d/%3d ", r, g, b);
}
}
System.out.print("\n");
}
@@ -788,6 +854,7 @@ public class TJUnitTest {
tjd = new TJDecompressor();
for (int pf : formats) {
if (pf < 0) continue;
for (int i = 0; i < 2; i++) {
int flags = 0;
if (subsamp == TJ.SAMP_422 || subsamp == TJ.SAMP_420 ||
@@ -880,7 +947,10 @@ public class TJUnitTest {
testName = "javabitest";
}
}
if (doyuv) yuv = YUVENCODE;
if (doyuv) {
yuv = YUVENCODE;
_4byteFormats[4] = -1;
}
doTest(35, 39, bi ? _3byteFormatsBI : _3byteFormats, TJ.SAMP_444,
testName);
doTest(39, 41, bi ? _4byteFormatsBI : _4byteFormats, TJ.SAMP_444,
@@ -904,6 +974,7 @@ public class TJUnitTest {
doTest(39, 41, bi ? onlyGrayBI : onlyGray, TJ.SAMP_GRAY, testName);
doTest(41, 35, bi ? _3byteFormatsBI : _3byteFormats, TJ.SAMP_GRAY,
testName);
_4byteFormats[4] = -1;
doTest(35, 39, bi ? _4byteFormatsBI : _4byteFormats, TJ.SAMP_GRAY,
testName);
if (!doyuv && !bi)

44
java/doc/constant-values.html
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@@ -99,6 +99,36 @@ org.libjpegturbo.*</FONT></TH>
<TH ALIGN="left" COLSPAN="3">org.libjpegturbo.turbojpeg.<A HREF="org/libjpegturbo/turbojpeg/TJ.html" title="class in org.libjpegturbo.turbojpeg">TJ</A></TH>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<A NAME="org.libjpegturbo.turbojpeg.TJ.CS_CMYK"><!-- --></A><TD ALIGN="right"><FONT SIZE="-1">
<CODE>public&nbsp;static&nbsp;final&nbsp;int</CODE></FONT></TD>
<TD ALIGN="left"><CODE><A HREF="org/libjpegturbo/turbojpeg/TJ.html#CS_CMYK">CS_CMYK</A></CODE></TD>
<TD ALIGN="right"><CODE>3</CODE></TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<A NAME="org.libjpegturbo.turbojpeg.TJ.CS_GRAY"><!-- --></A><TD ALIGN="right"><FONT SIZE="-1">
<CODE>public&nbsp;static&nbsp;final&nbsp;int</CODE></FONT></TD>
<TD ALIGN="left"><CODE><A HREF="org/libjpegturbo/turbojpeg/TJ.html#CS_GRAY">CS_GRAY</A></CODE></TD>
<TD ALIGN="right"><CODE>2</CODE></TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<A NAME="org.libjpegturbo.turbojpeg.TJ.CS_RGB"><!-- --></A><TD ALIGN="right"><FONT SIZE="-1">
<CODE>public&nbsp;static&nbsp;final&nbsp;int</CODE></FONT></TD>
<TD ALIGN="left"><CODE><A HREF="org/libjpegturbo/turbojpeg/TJ.html#CS_RGB">CS_RGB</A></CODE></TD>
<TD ALIGN="right"><CODE>0</CODE></TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<A NAME="org.libjpegturbo.turbojpeg.TJ.CS_YCbCr"><!-- --></A><TD ALIGN="right"><FONT SIZE="-1">
<CODE>public&nbsp;static&nbsp;final&nbsp;int</CODE></FONT></TD>
<TD ALIGN="left"><CODE><A HREF="org/libjpegturbo/turbojpeg/TJ.html#CS_YCbCr">CS_YCbCr</A></CODE></TD>
<TD ALIGN="right"><CODE>1</CODE></TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<A NAME="org.libjpegturbo.turbojpeg.TJ.CS_YCCK"><!-- --></A><TD ALIGN="right"><FONT SIZE="-1">
<CODE>public&nbsp;static&nbsp;final&nbsp;int</CODE></FONT></TD>
<TD ALIGN="left"><CODE><A HREF="org/libjpegturbo/turbojpeg/TJ.html#CS_YCCK">CS_YCCK</A></CODE></TD>
<TD ALIGN="right"><CODE>4</CODE></TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<A NAME="org.libjpegturbo.turbojpeg.TJ.FLAG_ACCURATEDCT"><!-- --></A><TD ALIGN="right"><FONT SIZE="-1">
<CODE>public&nbsp;static&nbsp;final&nbsp;int</CODE></FONT></TD>
<TD ALIGN="left"><CODE><A HREF="org/libjpegturbo/turbojpeg/TJ.html#FLAG_ACCURATEDCT">FLAG_ACCURATEDCT</A></CODE></TD>
@@ -147,10 +177,16 @@ org.libjpegturbo.*</FONT></TH>
<TD ALIGN="right"><CODE>128</CODE></TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<A NAME="org.libjpegturbo.turbojpeg.TJ.NUMCS"><!-- --></A><TD ALIGN="right"><FONT SIZE="-1">
<CODE>public&nbsp;static&nbsp;final&nbsp;int</CODE></FONT></TD>
<TD ALIGN="left"><CODE><A HREF="org/libjpegturbo/turbojpeg/TJ.html#NUMCS">NUMCS</A></CODE></TD>
<TD ALIGN="right"><CODE>5</CODE></TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<A NAME="org.libjpegturbo.turbojpeg.TJ.NUMPF"><!-- --></A><TD ALIGN="right"><FONT SIZE="-1">
<CODE>public&nbsp;static&nbsp;final&nbsp;int</CODE></FONT></TD>
<TD ALIGN="left"><CODE><A HREF="org/libjpegturbo/turbojpeg/TJ.html#NUMPF">NUMPF</A></CODE></TD>
<TD ALIGN="right"><CODE>11</CODE></TD>
<TD ALIGN="right"><CODE>12</CODE></TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<A NAME="org.libjpegturbo.turbojpeg.TJ.NUMSAMP"><!-- --></A><TD ALIGN="right"><FONT SIZE="-1">
@@ -189,6 +225,12 @@ org.libjpegturbo.*</FONT></TH>
<TD ALIGN="right"><CODE>3</CODE></TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<A NAME="org.libjpegturbo.turbojpeg.TJ.PF_CMYK"><!-- --></A><TD ALIGN="right"><FONT SIZE="-1">
<CODE>public&nbsp;static&nbsp;final&nbsp;int</CODE></FONT></TD>
<TD ALIGN="left"><CODE><A HREF="org/libjpegturbo/turbojpeg/TJ.html#PF_CMYK">PF_CMYK</A></CODE></TD>
<TD ALIGN="right"><CODE>11</CODE></TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<A NAME="org.libjpegturbo.turbojpeg.TJ.PF_GRAY"><!-- --></A><TD ALIGN="right"><FONT SIZE="-1">
<CODE>public&nbsp;static&nbsp;final&nbsp;int</CODE></FONT></TD>
<TD ALIGN="left"><CODE><A HREF="org/libjpegturbo/turbojpeg/TJ.html#PF_GRAY">PF_GRAY</A></CODE></TD>

26
java/doc/index-all.html
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@@ -119,11 +119,26 @@ Method in class org.libjpegturbo.turbojpeg.<A HREF="./org/libjpegturbo/turbojpeg
Method in class org.libjpegturbo.turbojpeg.<A HREF="./org/libjpegturbo/turbojpeg/TJCompressor.html" title="class in org.libjpegturbo.turbojpeg">TJCompressor</A>
<DD>Compress the uncompressed source image stored in <code>srcImage</code>
and return a buffer containing a JPEG image.
<DT><A HREF="./org/libjpegturbo/turbojpeg/TJ.html#CS_CMYK"><B>CS_CMYK</B></A> -
Static variable in class org.libjpegturbo.turbojpeg.<A HREF="./org/libjpegturbo/turbojpeg/TJ.html" title="class in org.libjpegturbo.turbojpeg">TJ</A>
<DD>CMYK colorspace.
<DT><A HREF="./org/libjpegturbo/turbojpeg/TJ.html#CS_GRAY"><B>CS_GRAY</B></A> -
Static variable in class org.libjpegturbo.turbojpeg.<A HREF="./org/libjpegturbo/turbojpeg/TJ.html" title="class in org.libjpegturbo.turbojpeg">TJ</A>
<DD>Grayscale colorspace.
<DT><A HREF="./org/libjpegturbo/turbojpeg/TJ.html#CS_RGB"><B>CS_RGB</B></A> -
Static variable in class org.libjpegturbo.turbojpeg.<A HREF="./org/libjpegturbo/turbojpeg/TJ.html" title="class in org.libjpegturbo.turbojpeg">TJ</A>
<DD>RGB colorspace.
<DT><A HREF="./org/libjpegturbo/turbojpeg/TJ.html#CS_YCbCr"><B>CS_YCbCr</B></A> -
Static variable in class org.libjpegturbo.turbojpeg.<A HREF="./org/libjpegturbo/turbojpeg/TJ.html" title="class in org.libjpegturbo.turbojpeg">TJ</A>
<DD>YCbCr colorspace.
<DT><A HREF="./org/libjpegturbo/turbojpeg/TJ.html#CS_YCCK"><B>CS_YCCK</B></A> -
Static variable in class org.libjpegturbo.turbojpeg.<A HREF="./org/libjpegturbo/turbojpeg/TJ.html" title="class in org.libjpegturbo.turbojpeg">TJ</A>
<DD>YCCK colorspace.
<DT><A HREF="./org/libjpegturbo/turbojpeg/TJCustomFilter.html#customFilter(java.nio.ShortBuffer, java.awt.Rectangle, java.awt.Rectangle, int, int, org.libjpegturbo.turbojpeg.TJTransform)"><B>customFilter(ShortBuffer, Rectangle, Rectangle, int, int, TJTransform)</B></A> -
Method in interface org.libjpegturbo.turbojpeg.<A HREF="./org/libjpegturbo/turbojpeg/TJCustomFilter.html" title="interface in org.libjpegturbo.turbojpeg">TJCustomFilter</A>
<DD>A callback function that can be used to modify the DCT coefficients after
they are losslessly transformed but before they are transcoded to a new
JPEG file.
JPEG image.
</DL>
<HR>
<A NAME="_D_"><!-- --></A><H2>
@@ -344,6 +359,9 @@ Variable in class org.libjpegturbo.turbojpeg.<A HREF="./org/libjpegturbo/turbojp
<DT><A HREF="./org/libjpegturbo/turbojpeg/TJDecompressor.html#jpegBufSize"><B>jpegBufSize</B></A> -
Variable in class org.libjpegturbo.turbojpeg.<A HREF="./org/libjpegturbo/turbojpeg/TJDecompressor.html" title="class in org.libjpegturbo.turbojpeg">TJDecompressor</A>
<DD>&nbsp;
<DT><A HREF="./org/libjpegturbo/turbojpeg/TJDecompressor.html#jpegColorspace"><B>jpegColorspace</B></A> -
Variable in class org.libjpegturbo.turbojpeg.<A HREF="./org/libjpegturbo/turbojpeg/TJDecompressor.html" title="class in org.libjpegturbo.turbojpeg">TJDecompressor</A>
<DD>&nbsp;
<DT><A HREF="./org/libjpegturbo/turbojpeg/TJDecompressor.html#jpegHeight"><B>jpegHeight</B></A> -
Variable in class org.libjpegturbo.turbojpeg.<A HREF="./org/libjpegturbo/turbojpeg/TJDecompressor.html" title="class in org.libjpegturbo.turbojpeg">TJDecompressor</A>
<DD>&nbsp;
@@ -358,6 +376,9 @@ Variable in class org.libjpegturbo.turbojpeg.<A HREF="./org/libjpegturbo/turbojp
<A NAME="_N_"><!-- --></A><H2>
<B>N</B></H2>
<DL>
<DT><A HREF="./org/libjpegturbo/turbojpeg/TJ.html#NUMCS"><B>NUMCS</B></A> -
Static variable in class org.libjpegturbo.turbojpeg.<A HREF="./org/libjpegturbo/turbojpeg/TJ.html" title="class in org.libjpegturbo.turbojpeg">TJ</A>
<DD>The number of JPEG colorspaces
<DT><A HREF="./org/libjpegturbo/turbojpeg/TJTransform.html#NUMOP"><B>NUMOP</B></A> -
Static variable in class org.libjpegturbo.turbojpeg.<A HREF="./org/libjpegturbo/turbojpeg/TJTransform.html" title="class in org.libjpegturbo.turbojpeg">TJTransform</A>
<DD>The number of lossless transform operations
@@ -442,6 +463,9 @@ Static variable in class org.libjpegturbo.turbojpeg.<A HREF="./org/libjpegturbo/
<DT><A HREF="./org/libjpegturbo/turbojpeg/TJ.html#PF_BGRX"><B>PF_BGRX</B></A> -
Static variable in class org.libjpegturbo.turbojpeg.<A HREF="./org/libjpegturbo/turbojpeg/TJ.html" title="class in org.libjpegturbo.turbojpeg">TJ</A>
<DD>BGRX pixel format.
<DT><A HREF="./org/libjpegturbo/turbojpeg/TJ.html#PF_CMYK"><B>PF_CMYK</B></A> -
Static variable in class org.libjpegturbo.turbojpeg.<A HREF="./org/libjpegturbo/turbojpeg/TJ.html" title="class in org.libjpegturbo.turbojpeg">TJ</A>
<DD>CMYK pixel format.
<DT><A HREF="./org/libjpegturbo/turbojpeg/TJ.html#PF_GRAY"><B>PF_GRAY</B></A> -
Static variable in class org.libjpegturbo.turbojpeg.<A HREF="./org/libjpegturbo/turbojpeg/TJ.html" title="class in org.libjpegturbo.turbojpeg">TJ</A>
<DD>Grayscale pixel format.

180
java/doc/org/libjpegturbo/turbojpeg/TJ.html
View File

@@ -115,6 +115,46 @@ TurboJPEG utility class (cannot be instantiated)
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static&nbsp;int</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/libjpegturbo/turbojpeg/TJ.html#CS_CMYK">CS_CMYK</A></B></CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;CMYK colorspace.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static&nbsp;int</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/libjpegturbo/turbojpeg/TJ.html#CS_GRAY">CS_GRAY</A></B></CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Grayscale colorspace.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static&nbsp;int</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/libjpegturbo/turbojpeg/TJ.html#CS_RGB">CS_RGB</A></B></CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;RGB colorspace.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static&nbsp;int</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/libjpegturbo/turbojpeg/TJ.html#CS_YCbCr">CS_YCbCr</A></B></CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;YCbCr colorspace.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static&nbsp;int</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/libjpegturbo/turbojpeg/TJ.html#CS_YCCK">CS_YCCK</A></B></CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;YCCK colorspace.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static&nbsp;int</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/libjpegturbo/turbojpeg/TJ.html#FLAG_ACCURATEDCT">FLAG_ACCURATEDCT</A></B></CODE>
<BR>
@@ -187,6 +227,14 @@ TurboJPEG utility class (cannot be instantiated)
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static&nbsp;int</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/libjpegturbo/turbojpeg/TJ.html#NUMCS">NUMCS</A></B></CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The number of JPEG colorspaces</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static&nbsp;int</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/libjpegturbo/turbojpeg/TJ.html#NUMPF">NUMPF</A></B></CODE>
<BR>
@@ -243,6 +291,14 @@ TurboJPEG utility class (cannot be instantiated)
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static&nbsp;int</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/libjpegturbo/turbojpeg/TJ.html#PF_CMYK">PF_CMYK</A></B></CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;CMYK pixel format.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>static&nbsp;int</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/libjpegturbo/turbojpeg/TJ.html#PF_GRAY">PF_GRAY</A></B></CODE>
<BR>
@@ -746,6 +802,130 @@ public static final int <B>PF_ARGB</B></PRE>
</DL>
<HR>
<A NAME="PF_CMYK"><!-- --></A><H3>
PF_CMYK</H3>
<PRE>
public static final int <B>PF_CMYK</B></PRE>
<DL>
<DD>CMYK pixel format. Unlike RGB, which is a display colorspace,
CMYK (Cyan/Magenta/Yellow/Key) is a print colorspace in which the
value of each color component corresponds to the amount of cyan, magenta,
yellow, or black ink that is applied to a white background. In order to
convert between CMYK and RGB, it is necessary to use a color management
system (CMS.) A CMS will attempt to map colors within the printer's gamut
to perceptually similar colors in the display's gamut and vice versa, but
the mapping is typically not 1:1 or reversible, nor can it be defined with
a simple formula. Thus, such a conversion is out of scope for a codec
library. However, the TurboJPEG API allows for compressing CMYK pixels
into a YCCK JPEG image (see <A HREF="../../../org/libjpegturbo/turbojpeg/TJ.html#CS_YCCK"><CODE>CS_YCCK</CODE></A>) and decompressing YCCK JPEG
images into CMYK pixels.
<P>
<DL>
<DT><B>See Also:</B><DD><A HREF="../../../constant-values.html#org.libjpegturbo.turbojpeg.TJ.PF_CMYK">Constant Field Values</A></DL>
</DL>
<HR>
<A NAME="NUMCS"><!-- --></A><H3>
NUMCS</H3>
<PRE>
public static final int <B>NUMCS</B></PRE>
<DL>
<DD>The number of JPEG colorspaces
<P>
<DL>
<DT><B>See Also:</B><DD><A HREF="../../../constant-values.html#org.libjpegturbo.turbojpeg.TJ.NUMCS">Constant Field Values</A></DL>
</DL>
<HR>
<A NAME="CS_RGB"><!-- --></A><H3>
CS_RGB</H3>
<PRE>
public static final int <B>CS_RGB</B></PRE>
<DL>
<DD>RGB colorspace. When compressing the JPEG image, the R, G, and B
components in the source image are reordered into image planes, but no
colorspace conversion or subsampling is performed. RGB JPEG images can be
decompressed to any of the extended RGB pixel formats or grayscale, but
they cannot be decompressed to YUV images.
<P>
<DL>
<DT><B>See Also:</B><DD><A HREF="../../../constant-values.html#org.libjpegturbo.turbojpeg.TJ.CS_RGB">Constant Field Values</A></DL>
</DL>
<HR>
<A NAME="CS_YCbCr"><!-- --></A><H3>
CS_YCbCr</H3>
<PRE>
public static final int <B>CS_YCbCr</B></PRE>
<DL>
<DD>YCbCr colorspace. YCbCr is not an absolute colorspace but rather a
mathematical transformation of RGB designed solely for storage and
transmission. YCbCr images must be converted to RGB before they can
actually be displayed. In the YCbCr colorspace, the Y (luminance)
component represents the black & white portion of the original image, and
the Cb and Cr (chrominance) components represent the color portion of the
original image. Originally, the analog equivalent of this transformation
allowed the same signal to drive both black & white and color televisions,
but JPEG images use YCbCr primarily because it allows the color data to be
optionally subsampled for the purposes of reducing bandwidth or disk
space. YCbCr is the most common JPEG colorspace, and YCbCr JPEG images
can be compressed from and decompressed to any of the extended RGB pixel
formats or grayscale, or they can be decompressed to YUV planar images.
<P>
<DL>
<DT><B>See Also:</B><DD><A HREF="../../../constant-values.html#org.libjpegturbo.turbojpeg.TJ.CS_YCbCr">Constant Field Values</A></DL>
</DL>
<HR>
<A NAME="CS_GRAY"><!-- --></A><H3>
CS_GRAY</H3>
<PRE>
public static final int <B>CS_GRAY</B></PRE>
<DL>
<DD>Grayscale colorspace. The JPEG image retains only the luminance data (Y
component), and any color data from the source image is discarded.
Grayscale JPEG images can be compressed from and decompressed to any of
the extended RGB pixel formats or grayscale, or they can be decompressed
to YUV planar images.
<P>
<DL>
<DT><B>See Also:</B><DD><A HREF="../../../constant-values.html#org.libjpegturbo.turbojpeg.TJ.CS_GRAY">Constant Field Values</A></DL>
</DL>
<HR>
<A NAME="CS_CMYK"><!-- --></A><H3>
CS_CMYK</H3>
<PRE>
public static final int <B>CS_CMYK</B></PRE>
<DL>
<DD>CMYK colorspace. When compressing the JPEG image, the C, M, Y, and K
components in the source image are reordered into image planes, but no
colorspace conversion or subsampling is performed. CMYK JPEG images can
only be decompressed to CMYK pixels.
<P>
<DL>
<DT><B>See Also:</B><DD><A HREF="../../../constant-values.html#org.libjpegturbo.turbojpeg.TJ.CS_CMYK">Constant Field Values</A></DL>
</DL>
<HR>
<A NAME="CS_YCCK"><!-- --></A><H3>
CS_YCCK</H3>
<PRE>
public static final int <B>CS_YCCK</B></PRE>
<DL>
<DD>YCCK colorspace. YCCK (AKA "YCbCrK") is not an absolute colorspace but
rather a mathematical transformation of CMYK designed solely for storage
and transmission. It is to CMYK as YCbCr is to RGB. CMYK pixels can be
reversibly transformed into YCCK, and as with YCbCr, the chrominance
components in the YCCK pixels can be subsampled without incurring major
perceptual loss. YCCK JPEG images can only be compressed from and
decompressed to CMYK pixels.
<P>
<DL>
<DT><B>See Also:</B><DD><A HREF="../../../constant-values.html#org.libjpegturbo.turbojpeg.TJ.CS_YCCK">Constant Field Values</A></DL>
</DL>
<HR>
<A NAME="FLAG_BOTTOMUP"><!-- --></A><H3>
FLAG_BOTTOMUP</H3>
<PRE>

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

@@ -420,8 +420,8 @@ 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>x</CODE> - x offset (in pixels) of the region from which the JPEG image
<DT><B>Parameters:</B><DD><CODE>srcImage</CODE> - image buffer containing RGB, grayscale, or CMYK 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

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

@@ -122,7 +122,7 @@ Custom filter callback interface
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;A callback function that can be used to modify the DCT coefficients after
they are losslessly transformed but before they are transcoded to a new
JPEG file.</TD>
JPEG image.</TD>
</TR>
</TABLE>
&nbsp;
@@ -151,7 +151,7 @@ void <B>customFilter</B>(java.nio.ShortBuffer&nbsp;coeffBuffer,
<DL>
<DD>A callback function that can be used to modify the DCT coefficients after
they are losslessly transformed but before they are transcoded to a new
JPEG file. This allows for custom filters or other transformations to be
JPEG image. This allows for custom filters or other transformations to be
applied in the frequency domain.
<P>
<DD><DL>

18
java/doc/org/libjpegturbo/turbojpeg/TJDecompressor.html
View File

@@ -136,6 +136,14 @@ TurboJPEG decompressor
<CODE>protected &nbsp;int</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/libjpegturbo/turbojpeg/TJDecompressor.html#jpegBufSize">jpegBufSize</A></B></CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>protected &nbsp;int</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/libjpegturbo/turbojpeg/TJDecompressor.html#jpegColorspace">jpegColorspace</A></B></CODE>
<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>
</TR>
@@ -504,6 +512,16 @@ protected int <B>jpegSubsamp</B></PRE>
<DL>
</DL>
</DL>
<HR>
<A NAME="jpegColorspace"><!-- --></A><H3>
jpegColorspace</H3>
<PRE>
protected int <B>jpegColorspace</B></PRE>
<DL>
<DL>
</DL>
</DL>
<!-- ========= CONSTRUCTOR DETAIL ======== -->

2
java/doc/org/libjpegturbo/turbojpeg/TJTransformer.html
View File

@@ -120,7 +120,7 @@ TurboJPEG lossless transformer
<TH ALIGN="left"><B>Fields inherited from class org.libjpegturbo.turbojpeg.<A HREF="../../../org/libjpegturbo/turbojpeg/TJDecompressor.html" title="class in org.libjpegturbo.turbojpeg">TJDecompressor</A></B></TH>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE><A HREF="../../../org/libjpegturbo/turbojpeg/TJDecompressor.html#handle">handle</A>, <A HREF="../../../org/libjpegturbo/turbojpeg/TJDecompressor.html#jpegBuf">jpegBuf</A>, <A HREF="../../../org/libjpegturbo/turbojpeg/TJDecompressor.html#jpegBufSize">jpegBufSize</A>, <A HREF="../../../org/libjpegturbo/turbojpeg/TJDecompressor.html#jpegHeight">jpegHeight</A>, <A HREF="../../../org/libjpegturbo/turbojpeg/TJDecompressor.html#jpegSubsamp">jpegSubsamp</A>, <A HREF="../../../org/libjpegturbo/turbojpeg/TJDecompressor.html#jpegWidth">jpegWidth</A></CODE></TD>
<TD><CODE><A HREF="../../../org/libjpegturbo/turbojpeg/TJDecompressor.html#handle">handle</A>, <A HREF="../../../org/libjpegturbo/turbojpeg/TJDecompressor.html#jpegBuf">jpegBuf</A>, <A HREF="../../../org/libjpegturbo/turbojpeg/TJDecompressor.html#jpegBufSize">jpegBufSize</A>, <A HREF="../../../org/libjpegturbo/turbojpeg/TJDecompressor.html#jpegColorspace">jpegColorspace</A>, <A HREF="../../../org/libjpegturbo/turbojpeg/TJDecompressor.html#jpegHeight">jpegHeight</A>, <A HREF="../../../org/libjpegturbo/turbojpeg/TJDecompressor.html#jpegSubsamp">jpegSubsamp</A>, <A HREF="../../../org/libjpegturbo/turbojpeg/TJDecompressor.html#jpegWidth">jpegWidth</A></CODE></TD>
</TR>
</TABLE>
&nbsp;

80
java/org/libjpegturbo/turbojpeg/TJ.java
View File

@@ -121,7 +121,7 @@ public final class TJ {
/**
* The number of pixel formats
*/
public static final int NUMPF = 11;
public static final int NUMPF = 12;
/**
* RGB pixel format. The red, green, and blue components in the image are
* stored in 3-byte pixels in the order R, G, B from lowest to highest byte
@@ -191,6 +191,21 @@ public final class TJ {
* interpreted as an opaque alpha channel.
*/
public static final int PF_ARGB = 10;
/**
* CMYK pixel format. Unlike RGB, which is a display colorspace,
* CMYK (Cyan/Magenta/Yellow/Key) is a print colorspace in which the
* value of each color component corresponds to the amount of cyan, magenta,
* yellow, or black ink that is applied to a white background. In order to
* convert between CMYK and RGB, it is necessary to use a color management
* system (CMS.) A CMS will attempt to map colors within the printer's gamut
* to perceptually similar colors in the display's gamut and vice versa, but
* the mapping is typically not 1:1 or reversible, nor can it be defined with
* a simple formula. Thus, such a conversion is out of scope for a codec
* library. However, the TurboJPEG API allows for compressing CMYK pixels
* into a YCCK JPEG image (see {@link #CS_YCCK}) and decompressing YCCK JPEG
* images into CMYK pixels.
*/
public static final int PF_CMYK = 11;
/**
@@ -207,7 +222,7 @@ public final class TJ {
}
private static final int[] pixelSize = {
3, 3, 4, 4, 4, 4, 1, 4, 4, 4, 4
3, 3, 4, 4, 4, 4, 1, 4, 4, 4, 4, 4
};
@@ -229,7 +244,7 @@ public final class TJ {
}
private static final int[] redOffset = {
0, 2, 0, 2, 3, 1, 0, 0, 2, 3, 1
0, 2, 0, 2, 3, 1, 0, 0, 2, 3, 1, -1
};
@@ -251,7 +266,7 @@ public final class TJ {
}
private static final int[] greenOffset = {
1, 1, 1, 1, 2, 2, 0, 1, 1, 2, 2
1, 1, 1, 1, 2, 2, 0, 1, 1, 2, 2, -1
};
@@ -273,10 +288,65 @@ public final class TJ {
}
private static final int[] blueOffset = {
2, 0, 2, 0, 1, 3, 0, 2, 0, 1, 3
2, 0, 2, 0, 1, 3, 0, 2, 0, 1, 3, -1
};
/**
* The number of JPEG colorspaces
*/
public static final int NUMCS = 5;
/**
* RGB colorspace. When compressing the JPEG image, the R, G, and B
* components in the source image are reordered into image planes, but no
* colorspace conversion or subsampling is performed. RGB JPEG images can be
* decompressed to any of the extended RGB pixel formats or grayscale, but
* they cannot be decompressed to YUV images.
*/
public static final int CS_RGB = 0;
/**
* YCbCr colorspace. YCbCr is not an absolute colorspace but rather a
* mathematical transformation of RGB designed solely for storage and
* transmission. YCbCr images must be converted to RGB before they can
* actually be displayed. In the YCbCr colorspace, the Y (luminance)
* component represents the black & white portion of the original image, and
* the Cb and Cr (chrominance) components represent the color portion of the
* original image. Originally, the analog equivalent of this transformation
* allowed the same signal to drive both black & white and color televisions,
* but JPEG images use YCbCr primarily because it allows the color data to be
* optionally subsampled for the purposes of reducing bandwidth or disk
* space. YCbCr is the most common JPEG colorspace, and YCbCr JPEG images
* can be compressed from and decompressed to any of the extended RGB pixel
* formats or grayscale, or they can be decompressed to YUV planar images.
*/
public static final int CS_YCbCr = 1;
/**
* Grayscale colorspace. The JPEG image retains only the luminance data (Y
* component), and any color data from the source image is discarded.
* Grayscale JPEG images can be compressed from and decompressed to any of
* the extended RGB pixel formats or grayscale, or they can be decompressed
* to YUV planar images.
*/
public static final int CS_GRAY = 2;
/**
* CMYK colorspace. When compressing the JPEG image, the C, M, Y, and K
* components in the source image are reordered into image planes, but no
* colorspace conversion or subsampling is performed. CMYK JPEG images can
* only be decompressed to CMYK pixels.
*/
public static final int CS_CMYK = 3;
/**
* YCCK colorspace. YCCK (AKA "YCbCrK") is not an absolute colorspace but
* rather a mathematical transformation of CMYK designed solely for storage
* and transmission. It is to CMYK as YCbCr is to RGB. CMYK pixels can be
* reversibly transformed into YCCK, and as with YCbCr, the chrominance
* components in the YCCK pixels can be subsampled without incurring major
* perceptual loss. YCCK JPEG images can only be compressed from and
* decompressed to CMYK pixels.
*/
public static final int CS_YCCK = 4;
/**
* The uncompressed source/destination image is stored in bottom-up (Windows,
* OpenGL) order, not top-down (X11) order.

4
java/org/libjpegturbo/turbojpeg/TJCompressor.java
View File

@@ -95,8 +95,8 @@ public class TJCompressor {
/**
* Associate an uncompressed source image with this compressor instance.
*
* @param srcImage image buffer containing RGB or grayscale pixels to be
* compressed
* @param srcImage image buffer containing RGB, grayscale, or CMYK pixels to
* be compressed
*
* @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>.

2
java/org/libjpegturbo/turbojpeg/TJCustomFilter.java
View File

@@ -39,7 +39,7 @@ public interface TJCustomFilter {
/**
* A callback function that can be used to modify the DCT coefficients after
* they are losslessly transformed but before they are transcoded to a new
* JPEG file. This allows for custom filters or other transformations to be
* JPEG image. This allows for custom filters or other transformations to be
* applied in the frequency domain.
*
* @param coeffBuffer a buffer containing transformed DCT coefficients.

1
java/org/libjpegturbo/turbojpeg/TJDecompressor.java
View File

@@ -687,5 +687,6 @@ public class TJDecompressor {
protected int jpegWidth = 0;
protected int jpegHeight = 0;
protected int jpegSubsamp = -1;
protected int jpegColorspace = -1;
private ByteOrder byteOrder = null;
};

20
java/org_libjpegturbo_turbojpeg_TJ.h
View File

@@ -8,7 +8,7 @@
extern "C" {
#endif
#undef org_libjpegturbo_turbojpeg_TJ_NUMSAMP
#define org_libjpegturbo_turbojpeg_TJ_NUMSAMP 5L
#define org_libjpegturbo_turbojpeg_TJ_NUMSAMP 6L
#undef org_libjpegturbo_turbojpeg_TJ_SAMP_444
#define org_libjpegturbo_turbojpeg_TJ_SAMP_444 0L
#undef org_libjpegturbo_turbojpeg_TJ_SAMP_422
@@ -19,8 +19,10 @@ extern "C" {
#define org_libjpegturbo_turbojpeg_TJ_SAMP_GRAY 3L
#undef org_libjpegturbo_turbojpeg_TJ_SAMP_440
#define org_libjpegturbo_turbojpeg_TJ_SAMP_440 4L
#undef org_libjpegturbo_turbojpeg_TJ_SAMP_411
#define org_libjpegturbo_turbojpeg_TJ_SAMP_411 5L
#undef org_libjpegturbo_turbojpeg_TJ_NUMPF
#define org_libjpegturbo_turbojpeg_TJ_NUMPF 11L
#define org_libjpegturbo_turbojpeg_TJ_NUMPF 12L
#undef org_libjpegturbo_turbojpeg_TJ_PF_RGB
#define org_libjpegturbo_turbojpeg_TJ_PF_RGB 0L
#undef org_libjpegturbo_turbojpeg_TJ_PF_BGR
@@ -43,6 +45,20 @@ extern "C" {
#define org_libjpegturbo_turbojpeg_TJ_PF_ABGR 9L
#undef org_libjpegturbo_turbojpeg_TJ_PF_ARGB
#define org_libjpegturbo_turbojpeg_TJ_PF_ARGB 10L
#undef org_libjpegturbo_turbojpeg_TJ_PF_CMYK
#define org_libjpegturbo_turbojpeg_TJ_PF_CMYK 11L
#undef org_libjpegturbo_turbojpeg_TJ_NUMCS
#define org_libjpegturbo_turbojpeg_TJ_NUMCS 5L
#undef org_libjpegturbo_turbojpeg_TJ_CS_RGB
#define org_libjpegturbo_turbojpeg_TJ_CS_RGB 0L
#undef org_libjpegturbo_turbojpeg_TJ_CS_YCbCr
#define org_libjpegturbo_turbojpeg_TJ_CS_YCbCr 1L
#undef org_libjpegturbo_turbojpeg_TJ_CS_GRAY
#define org_libjpegturbo_turbojpeg_TJ_CS_GRAY 2L
#undef org_libjpegturbo_turbojpeg_TJ_CS_CMYK
#define org_libjpegturbo_turbojpeg_TJ_CS_CMYK 3L
#undef org_libjpegturbo_turbojpeg_TJ_CS_YCCK
#define org_libjpegturbo_turbojpeg_TJ_CS_YCCK 4L
#undef org_libjpegturbo_turbojpeg_TJ_FLAG_BOTTOMUP
#define org_libjpegturbo_turbojpeg_TJ_FLAG_BOTTOMUP 2L
#undef org_libjpegturbo_turbojpeg_TJ_FLAG_FORCEMMX

4
tjbench.c
View File

@@ -69,13 +69,13 @@ double benchtime=5.0;
char *formatName(int subsamp, int cs, char *buf)
{
if(cs==TJCS_YCbCr) return subNameLong[subsamp];
if(cs==TJCS_YCbCr) return (char *)subNameLong[subsamp];
else if(cs==TJCS_YCCK)
{
snprintf(buf, 80, "%s %s", csName[cs], subNameLong[subsamp]);
return buf;
}
else return csName[cs];
else return (char *)csName[cs];
}

2
tjunittest.c
View File

@@ -467,7 +467,7 @@ void _decompTest(tjhandle handle, unsigned char *jpegBuf,
if(yuv==YUVENCODE) return;
if(yuv==YUVDECODE)
printf("JPEG -> YUV %s ... ", subNameLong[subsamp]);
printf("JPEG -> YUV %s ", subNameLong[subsamp]);
else
printf("JPEG -> %s %s ", pixFormatStr[pf],
(flags&TJFLAG_BOTTOMUP)? "Bottom-Up":"Top-Down ");

8
turbojpeg-jni.c
View File

@@ -382,7 +382,7 @@ JNIEXPORT void JNICALL Java_org_libjpegturbo_turbojpeg_TJDecompressor_decompress
{
tjhandle handle=0;
unsigned char *jpegBuf=NULL;
int width=0, height=0, jpegSubsamp=-1;
int width=0, height=0, jpegSubsamp=-1, jpegColorspace=-1;
gethandle();
@@ -391,8 +391,8 @@ JNIEXPORT void JNICALL Java_org_libjpegturbo_turbojpeg_TJDecompressor_decompress
bailif0(jpegBuf=(*env)->GetPrimitiveArrayCritical(env, src, 0));
if(tjDecompressHeader2(handle, jpegBuf, (unsigned long)jpegSize,
&width, &height, &jpegSubsamp)==-1)
if(tjDecompressHeader3(handle, jpegBuf, (unsigned long)jpegSize,
&width, &height, &jpegSubsamp, &jpegColorspace)==-1)
{
(*env)->ReleasePrimitiveArrayCritical(env, src, jpegBuf, 0);
_throw(tjGetErrorStr());
@@ -401,6 +401,8 @@ JNIEXPORT void JNICALL Java_org_libjpegturbo_turbojpeg_TJDecompressor_decompress
bailif0(_fid=(*env)->GetFieldID(env, _cls, "jpegSubsamp", "I"));
(*env)->SetIntField(env, obj, _fid, jpegSubsamp);
bailif0(_fid=(*env)->GetFieldID(env, _cls, "jpegColorspace", "I"));
(*env)->SetIntField(env, obj, _fid, jpegColorspace);
bailif0(_fid=(*env)->GetFieldID(env, _cls, "jpegWidth", "I"));
(*env)->SetIntField(env, obj, _fid, width);
bailif0(_fid=(*env)->GetFieldID(env, _cls, "jpegHeight", "I"));

60
turbojpeg.h
View File

@@ -225,10 +225,39 @@ enum TJPF
};
/**
* Red offset (in bytes) for a given pixel format. This specifies the number
* of bytes that the red component is offset from the start of the pixel. For
* instance, if a pixel of format TJ_BGRX is stored in <tt>char pixel[]</tt>,
* then the red component will be <tt>pixel[tjRedOffset[TJ_BGRX]]</tt>.
*/
static const int tjRedOffset[TJ_NUMPF] = {0, 2, 0, 2, 3, 1, 0, 0, 2, 3, 1, -1};
/**
* Green offset (in bytes) for a given pixel format. This specifies the number
* of bytes that the green component is offset from the start of the pixel.
* For instance, if a pixel of format TJ_BGRX is stored in
* <tt>char pixel[]</tt>, then the green component will be
* <tt>pixel[tjGreenOffset[TJ_BGRX]]</tt>.
*/
static const int tjGreenOffset[TJ_NUMPF] = {1, 1, 1, 1, 2, 2, 0, 1, 1, 2, 2, -1};
/**
* Blue offset (in bytes) for a given pixel format. This specifies the number
* of bytes that the Blue component is offset from the start of the pixel. For
* instance, if a pixel of format TJ_BGRX is stored in <tt>char pixel[]</tt>,
* then the blue component will be <tt>pixel[tjBlueOffset[TJ_BGRX]]</tt>.
*/
static const int tjBlueOffset[TJ_NUMPF] = {2, 0, 2, 0, 1, 3, 0, 2, 0, 1, 3, -1};
/**
* Pixel size (in bytes) for a given pixel format.
*/
static const int tjPixelSize[TJ_NUMPF] = {3, 3, 4, 4, 4, 4, 1, 4, 4, 4, 4, 4};
/**
* The number of JPEG colorspaces
*/
#define TJ_NUMCS 12
#define TJ_NUMCS 5
/**
* JPEG colorspaces
@@ -287,35 +316,6 @@ enum TJCS
};
/**
* Red offset (in bytes) for a given pixel format. This specifies the number
* of bytes that the red component is offset from the start of the pixel. For
* instance, if a pixel of format TJ_BGRX is stored in <tt>char pixel[]</tt>,
* then the red component will be <tt>pixel[tjRedOffset[TJ_BGRX]]</tt>.
*/
static const int tjRedOffset[TJ_NUMPF] = {0, 2, 0, 2, 3, 1, 0, 0, 2, 3, 1, -1};
/**
* Green offset (in bytes) for a given pixel format. This specifies the number
* of bytes that the green component is offset from the start of the pixel.
* For instance, if a pixel of format TJ_BGRX is stored in
* <tt>char pixel[]</tt>, then the green component will be
* <tt>pixel[tjGreenOffset[TJ_BGRX]]</tt>.
*/
static const int tjGreenOffset[TJ_NUMPF] = {1, 1, 1, 1, 2, 2, 0, 1, 1, 2, 2, -1};
/**
* Blue offset (in bytes) for a given pixel format. This specifies the number
* of bytes that the Blue component is offset from the start of the pixel. For
* instance, if a pixel of format TJ_BGRX is stored in <tt>char pixel[]</tt>,
* then the blue component will be <tt>pixel[tjBlueOffset[TJ_BGRX]]</tt>.
*/
static const int tjBlueOffset[TJ_NUMPF] = {2, 0, 2, 0, 1, 3, 0, 2, 0, 1, 3, -1};
/**
* Pixel size (in bytes) for a given pixel format.
*/
static const int tjPixelSize[TJ_NUMPF] = {3, 3, 4, 4, 4, 4, 1, 4, 4, 4, 4, 4};
/**
* The uncompressed source/destination image is stored in bottom-up (Windows,
* OpenGL) order, not top-down (X11) order.