Mega Code Archive
Gif Encoder
<![CDATA[
/*
*
* Part of the InfoGlue Content Management Platform (www.infoglue.org)
*
*
*
* Copyright (C)
*
* This program is free software; you can redistribute it and/or modify it under
* the terms of the GNU General Public License version 2, as published by the
* Free Software Foundation. See the file LICENSE.html for more information.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY, including 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
* this program; if not, write to the Free Software Foundation, Inc. / 59 Temple
* Place, Suite 330 / Boston, MA 02111-1307 / USA.
*
*
*/
import java.awt.Color;
import java.awt.image.BufferedImage;
import java.io.*;
import java.util.*;
public class GifEncoder
{
String b;
int g;
int a;
int h;
int f;
int c[];
int i[];
int e[];
TreeSet d;
private void a(int ai[], int j, DataOutputStream dataoutputstream) throws Exception
{
try
{
boolean flag2 = false;
int l;
int j3 = (1 << (l = j + 1)) - 1;
int i2 = (1 << j) + 2;
byte abyte0[] = new byte[255];
int ai1[] = new int[4096];
int ai2[] = new int[4096];
int ai3[] = new int[4096];
int ai4[] = new int[i2];
int k;
for(k = 0; k < i2; k++)
{
ai4[k] = 0xffffffff | k;
ai3[k] = -1;
}
for(; k < 4096; k++)
{
ai3[k] = -1;
}
System.arraycopy(ai3, 0, ai1, 0, 4096);
System.arraycopy(ai3, 0, ai2, 0, 4096);
System.arraycopy(ai4, 0, ai1, 0, i2);
int j1 = ai[0];
k = 1;
boolean flag1 = false;
int j2 = 0;
int k2 = (1 << l) - 1;
boolean flag = true;
int i3 = 0;
int i1 = 0;
j2 |= 1 << j + i3;
for(i3 += l; i3 >= 8;)
{
try
{
abyte0[i1++] = (byte)j2;
}
catch(ArrayIndexOutOfBoundsException arrayindexoutofboundsexception)
{
dataoutputstream.writeByte(255);
dataoutputstream.write(abyte0);
abyte0[i1 = 0] = (byte)j2;
i1++;
}
i3 -= 8;
j2 >>= 8;
}
try
{
do
{
int k1;
int l1 = j1 << 16 | (k1 = ai[k++]);
int k3;
for(k3 = j1; ai1[k3] != l1 && ai2[k3] >= 0; k3 = ai2[k3]) { }
if(ai1[k3] != l1)
{
j2 |= j1 << i3;
for(i3 += l; i3 >= 8;)
{
try
{
abyte0[i1++] = (byte)j2;
}
catch(ArrayIndexOutOfBoundsException arrayindexoutofboundsexception1)
{
dataoutputstream.writeByte(255);
dataoutputstream.write(abyte0);
abyte0[i1 = 0] = (byte)j2;
i1++;
}
i3 -= 8;
j2 >>= 8;
}
if(i2 > j3)
{
l++;
j3 = (j3 << 1) + 1;
}
try
{
ai2[k3] = i2;
ai1[i2++] = j1 << 16 | k1;
j1 = k1;
}
catch(ArrayIndexOutOfBoundsException arrayindexoutofboundsexception2)
{
j1 = k1;
l--;
j2 |= 1 << j + i3;
for(i3 += l; i3 >= 8;)
{
try
{
abyte0[i1++] = (byte)j2;
}
catch(ArrayIndexOutOfBoundsException arrayindexoutofboundsexception5)
{
dataoutputstream.writeByte(255);
dataoutputstream.write(abyte0);
abyte0[i1 = 0] = (byte)j2;
i1++;
}
i3 -= 8;
j2 >>= 8;
}
j3 = (1 << (l = j + 1)) - 1;
i2 = (1 << j) + 2;
int l2 = (1 << l) - 1;
System.arraycopy(ai3, 0, ai1, 0, 4096);
System.arraycopy(ai3, 0, ai2, 0, 4096);
System.arraycopy(ai4, 0, ai1, 0, i2);
}
}
else
{
j1 = k3;
}
}
while(true);
}
catch(Exception exception)
{
j2 |= j1 << i3;
}
for(i3 += l; i3 >= 8;)
{
try
{
abyte0[i1++] = (byte)j2;
}
catch(ArrayIndexOutOfBoundsException arrayindexoutofboundsexception3)
{
dataoutputstream.writeByte(255);
dataoutputstream.write(abyte0);
abyte0[i1 = 0] = (byte)j2;
i1++;
}
i3 -= 8;
j2 >>= 8;
}
j2 |= (1 << j) + 1 << i3;
for(i3 += l; i3 > 0;)
{
try
{
abyte0[i1++] = (byte)j2;
}
catch(ArrayIndexOutOfBoundsException arrayindexoutofboundsexception4)
{
dataoutputstream.writeByte(255);
dataoutputstream.write(abyte0);
abyte0[i1 = 0] = (byte)j2;
i1++;
}
i3 -= 8;
j2 >>= 8;
}
dataoutputstream.writeByte(i1);
dataoutputstream.write(abyte0, 0, i1);
dataoutputstream.writeByte(0);
return;
}
catch(Exception e) { }
}
public void addTransparentColor(Color color)
{
try
{
if(f < 256)
{
c[f++] = color.getRGB();
}
return;
}
catch(Exception e) { }
}
public void setTransparentColors(Vector vector)
{
try
{
Iterator iterator = vector.iterator();
while(iterator.hasNext())
{
Color color = (Color)iterator.next();
addTransparentColor(color);
}
return;
}
catch(Exception e) { }
}
public void encode(BufferedImage bufferedimage, DataOutputStream dataoutputstream, Hashtable hashtable) throws Exception
{
try
{
a = bufferedimage.getWidth();
g = bufferedimage.getHeight();
e = bufferedimage.getRGB(0, 0, a, g, null, 0, a);
int i4 = 0;
b = hashtable.get("encoding").toString();
if(b.equals("websafe"))
{
int ai[] = new int[256];
i = new int[256];
h = 8;
int k1 = 0;
int j;
int j1 = j = 0;
for(; j <= 255; j += 51)
{
for(int l = 0; l <= 255; l += 51)
{
for(int i1 = 0; i1 <= 255;)
{
i[j1] = (j << 16) + (l << 8) + i1;
ai[k1++] = j1;
i1 += 51;
j1++;
}
}
}
if(f > 0)
{
int j4 = c[0];
int l1 = ((c[0] >> 16 & 0xff) + 25) / 51;
int k2 = ((c[0] >> 8 & 0xff) + 25) / 51;
int j3 = ((c[0] & 0xff) + 25) / 51;
i4 = l1 * 36 + k2 * 6 + j3;
for(j = 1; j < f; j++)
{
int i2 = ((c[j] >> 16 & 0xff) + 25) / 51;
int l2 = ((c[j] >> 8 & 0xff) + 25) / 51;
int k3 = ((c[j] & 0xff) + 25) / 51;
ai[i2 * 36 + l2 * 6 + k3] = i4;
}
}
j = 0;
try
{
do
{
int i5 = e[j];
int j2 = ((i5 >> 16 & 0xff) + 25) / 51;
int i3 = ((i5 >> 8 & 0xff) + 25) / 51;
int l3 = ((i5 & 0xff) + 25) / 51;
e[j++] = ai[j2 * 36 + i3 * 6 + l3];
}
while(true);
}
catch(Exception exception1) { }
}
/*else
if(b.equals("optimized"))
{
try
{
int k4 = Integer.parseInt(hashtable.get("colors").toString());
for(h = 1; k4 - 1 >> h > 0; h++) { }
i = new int[1 << h];
CSelectiveQuant cselectivequant = new CSelectiveQuant();
for(int j5 = 0; j5 < e.length; j5++)
{
cselectivequant.addPixel(e[j5]);
}
boolean flag = f > 0;
int k5 = flag ? 1 : 0;
int ai1[] = cselectivequant.createPalette(k4 - k5);
for(int l5 = 0; l5 < i.length; l5++)
{
try
{
i[l5] = ai1[l5 - k5];
}
catch(ArrayIndexOutOfBoundsException arrayindexoutofboundsexception)
{
i[l5] = 0;
}
}
if(flag)
{
i4 = 0;
for(int i6 = 0; i6 < f; i6++)
{
cselectivequant.setIndex(c[i6], -1);
}
}
for(int j6 = 0; j6 < e.length; j6++)
{
e[j6] = cselectivequant.getIndex(e[j6]) + k5;
}
}
catch(NumberFormatException numberformatexception)
{
CmsLogger.logInfo("Parameter: 'colors' is malformated...");
return;
}
}
*/
dataoutputstream.write("GIF89a".getBytes());
dataoutputstream.writeByte(a);
dataoutputstream.writeByte(a >> 8);
dataoutputstream.writeByte(g);
dataoutputstream.writeByte(g >> 8);
dataoutputstream.writeByte(0xf0 | h - 1);
dataoutputstream.writeByte(0);
dataoutputstream.writeByte(0);
int k = 0;
try
{
do
{
int l4 = i[k++];
dataoutputstream.writeByte(l4 >> 16 & 0xff);
dataoutputstream.writeByte(l4 >> 8 & 0xff);
dataoutputstream.writeByte(l4 & 0xff);
}
while(true);
}
catch(Exception exception) { }
if(f > 0)
{
dataoutputstream.writeByte(33);
dataoutputstream.writeByte(249);
dataoutputstream.writeByte(4);
dataoutputstream.writeByte(1);
dataoutputstream.writeByte(0);
dataoutputstream.writeByte(0);
dataoutputstream.writeByte(i4);
dataoutputstream.writeByte(0);
}
dataoutputstream.writeByte(44);
dataoutputstream.writeByte(0);
dataoutputstream.writeByte(0);
dataoutputstream.writeByte(0);
dataoutputstream.writeByte(0);
dataoutputstream.writeByte(a);
dataoutputstream.writeByte(a >> 8);
dataoutputstream.writeByte(g);
dataoutputstream.writeByte(g >> 8);
dataoutputstream.writeByte(0);
dataoutputstream.writeByte(h);
a(e, h, dataoutputstream);
dataoutputstream.writeByte(59);
dataoutputstream.flush();
return;
}
catch(Exception e) { }
}
public GifEncoder()
{
f = 0;
c = new int[256];
}
}
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