/**
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* Make a donation http://sourceforge.net/donate/index.php?group_id=98797
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* Microcrowd.com
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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* Contact Josh DeFord jdeford@microcrowd.com
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*/
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package com.microcrowd.loader.java3d.max3ds.chunks;
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import javax.vecmath.Color3f;
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import com.microcrowd.loader.java3d.max3ds.ChunkChopper;
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/**
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* Loads colors from binary data representing them.
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*/
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public class ColorChunk extends Chunk
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{
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protected int currentColorType;
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private static final int FLOAT_COLOR = 0x10;
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private static final int BYTE_COLOR = 0x11;
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private static final int BYTE_COLOR_GAMMA = 0x12;
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private static final int FLOAT_COLOR_GAMMA = 0x13;
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/**
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* Based on the color type retrieved
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* from {@link #getColorType} loads
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* an rgb or float color and pushes
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* it onto the chunk chopper.
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*
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* @param chopper the chopper that will store the color data.
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*/
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public void loadData(ChunkChopper chopper)
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{
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int colorType = getColorType(chopper);
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if (colorType == BYTE_COLOR)
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{
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float r = (chopper.getUnsignedByte()) / 255f;
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float g = (chopper.getUnsignedByte()) / 255f;
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float b = (chopper.getUnsignedByte()) / 255f;
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Color3f color = new Color3f(r, g, b);
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chopper.pushData(chopper.getID(), color);
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}
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else if (colorType == FLOAT_COLOR)
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{
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Color3f color = new Color3f(chopper.getFloat(), chopper.getFloat(), chopper.getFloat());
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chopper.pushData(chopper.getID(), color);
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}
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else
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{
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throw new IllegalArgumentException("Only RGB colors are enabled. ChunkID="
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+ Integer.toHexString((byte)chopper.getID().intValue())
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+ " Color type = " + Integer.toHexString((byte)colorType));
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}
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}
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/**
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* Gets the color type for this chunk.
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* @param chopper with the information the
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* chunk may use to determine color type
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* @return the color type for the chunk retrieved
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* from the chopper using this chunks id.
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*/
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protected int getColorType(ChunkChopper chopper)
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{
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return chopper.getID().intValue();
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}
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}
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