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/*
* This program is free software; you can redistribute it and/or modify it under the
* terms of the GNU Lesser General Public License, version 2.1 as published by the Free Software
* Foundation.
*
* You should have received a copy of the GNU Lesser General Public License along with this
* program; if not, you can obtain a copy at http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html
* or from the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
* This program 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 Lesser General Public License for more details.
*
* Copyright (c) 2000 - 2009 Pentaho Corporation, Object Refinery Limited and Contributors. All rights reserved.
*/
package org.pentaho.reporting.libraries.pixie.wmf.bitmap;
import java.io.IOException;
import java.io.InputStream;
public abstract class BitmapCompression
{
private int height;
private int width;
private int bpp;
private boolean topDown;
protected BitmapCompression()
{
}
public void setDimension(final int width, final int height)
{
this.width = width;
this.height = height;
}
public int getHeight()
{
return height;
}
public int getWidth()
{
return width;
}
public int getBpp()
{
return bpp;
}
public void setBpp(final int bpp)
{
this.bpp = bpp;
}
public void setTopDown(final boolean b)
{
this.topDown = b;
}
public boolean isTopDown()
{
return topDown;
}
public abstract int[] decompress(InputStream in, GDIPalette palette)
throws IOException;
public static int[] expandMonocrome(final int b, final GDIPalette pal)
{
final int tColor = pal.lookupColor(1);
final int fColor = pal.lookupColor(0);
final int[] retval = new int[8];
if ((b & 0x01) == 0x01)
{
retval[0] = tColor;
}
else
{
retval[0] = fColor;
}
if ((b & 0x02) == 0x02)
{
retval[1] = tColor;
}
else
{
retval[1] = fColor;
}
if ((b & 0x04) == 0x04)
{
retval[2] = tColor;
}
else
{
retval[2] = fColor;
}
if ((b & 0x08) == 0x08)
{
retval[3] = tColor;
}
else
{
retval[3] = fColor;
}
if ((b & 0x10) == 0x10)
{
retval[4] = tColor;
}
else
{
retval[4] = fColor;
}
if ((b & 0x20) == 0x20)
{
retval[5] = tColor;
}
else
{
retval[5] = fColor;
}
if ((b & 0x40) == 0x40)
{
retval[6] = tColor;
}
else
{
retval[6] = fColor;
}
if ((b & 0x80) == 0x80)
{
retval[7] = tColor;
}
else
{
retval[7] = fColor;
}
return retval;
}
public static int[] expand4BitTuple(final int b, final GDIPalette pal)
{
final int[] retval = new int[2];
retval[0] = pal.lookupColor((b & 0xF0) >> 4);
retval[1] = pal.lookupColor(b & 0x0F);
return retval;
}
}
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