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author | upstream source tree <ports@midipix.org> | 2015-03-15 20:14:05 -0400 |
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committer | upstream source tree <ports@midipix.org> | 2015-03-15 20:14:05 -0400 |
commit | 554fd8c5195424bdbcabf5de30fdc183aba391bd (patch) | |
tree | 976dc5ab7fddf506dadce60ae936f43f58787092 /libjava/classpath/gnu/javax/imageio/png/PNGICCProfile.java | |
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Diffstat (limited to 'libjava/classpath/gnu/javax/imageio/png/PNGICCProfile.java')
-rw-r--r-- | libjava/classpath/gnu/javax/imageio/png/PNGICCProfile.java | 116 |
1 files changed, 116 insertions, 0 deletions
diff --git a/libjava/classpath/gnu/javax/imageio/png/PNGICCProfile.java b/libjava/classpath/gnu/javax/imageio/png/PNGICCProfile.java new file mode 100644 index 000000000..9ecea7166 --- /dev/null +++ b/libjava/classpath/gnu/javax/imageio/png/PNGICCProfile.java @@ -0,0 +1,116 @@ +/* PNGICCProfile.java -- + Copyright (C) 2006 Free Software Foundation + +This file is part of GNU Classpath. + +GNU Classpath is free software; you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation; either version 2, or (at your option) +any later version. + +GNU Classpath is distributed in the hope that it will be useful, but +WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +General Public License for more details. + +You should have received a copy of the GNU General Public License +along with GNU Classpath; see the file COPYING. If not, write to the +Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA +02110-1301 USA. + +Linking this library statically or dynamically with other modules is +making a combined work based on this library. Thus, the terms and +conditions of the GNU General Public License cover the whole +combination. + +As a special exception, the copyright holders of this library give you +permission to link this library with independent modules to produce an +executable, regardless of the license terms of these independent +modules, and to copy and distribute the resulting executable under +terms of your choice, provided that you also meet, for each linked +independent module, the terms and conditions of the license of that +module. An independent module is a module which is not derived from +or based on this library. If you modify this library, you may extend +this exception to your version of the library, but you are not +obligated to do so. If you do not wish to do so, delete this +exception statement from your version. */ + +package gnu.javax.imageio.png; + +import java.awt.color.ICC_Profile; +import java.awt.color.ICC_ColorSpace; +import java.awt.color.ColorSpace; +import java.io.UnsupportedEncodingException; +import java.io.IOException; +import java.io.ByteArrayInputStream; +import java.util.zip.InflaterInputStream; +import java.util.zip.Deflater; + +/** + * A PNG iCCP (ICC Profile) chunk. + */ +public class PNGICCProfile extends PNGChunk +{ + private String name; + private ICC_Profile profile; + // A generic profile name to use "ICC Profile" + private static final byte[] genericName = new byte[] + { 0x49, 0x43, 0x43, 0x20, 0x50, 0x72, 0x6f, 0x66, 0x69, 0x6c, 0x65 }; + + protected PNGICCProfile( int type, byte[] data, int crc ) throws PNGException + { + super( type, data, crc ); + int i = 0; + while( data[i++] != 0 ) + ; + + try + { + name = new String(data, 0, i, "8859_1"); + } + catch(UnsupportedEncodingException e) + { + name = ""; // shouldn't really happen. + } + if( data[i++] != 0 ) + throw new PNGException("Can't handle nonzero compression types with iCCP chunks."); + try + { + ByteArrayInputStream bos = new ByteArrayInputStream( data, i, + data.length - i ); + profile = ICC_Profile.getInstance( new InflaterInputStream( bos ) ); + } + catch(IOException ioe) + { + throw new PNGException("Couldn't read iCCP profile chunk."); + } + System.out.println("Got profile:"+profile); + } + + public PNGICCProfile( ICC_Profile profile ) + { + super( TYPE_PROFILE ); + this.profile = profile; + byte[] profData = profile.getData(); + byte[] outData = new byte[ profData.length * 2 ]; + Deflater deflater = new Deflater(); + deflater.setInput( profData ); + deflater.finish(); + int n = deflater.deflate( outData ); + data = new byte[ n + 11 + 2 ]; + System.arraycopy(genericName, 0, data, 0, 11 ); + data[11] = data[12] = 0; // null separator and compression type. + // Copy compressed data + System.arraycopy(outData, 0, data, 13, n ); + } + + public ColorSpace getColorSpace() + { + return new ICC_ColorSpace( profile ); + } + + public String toString() + { + return "PNG ICC Profile, name: "+name; + } +} |