root/as3/PSDParser/src/com/voidelement/images/psd/compression/ImageRLEParser.as

/**
 * com.voidelement.images.psd.PSDParser  Class for ActionScript 3.0 
 *  
 * @author       Copyright (c) 2007 munegon
 * @version      0.2
 *  
 * @link         http://www.voidelement.com/
 * @link         http://void.heteml.jp/blog/
 * 
 * Licensed under the Apache License, Version 2.0 (the "License"); 
 * you may not use this file except in compliance with the License. 
 * You may obtain a copy of the License at 
 *  
 * http://www.apache.org/licenses/LICENSE-2.0 
 *  
 * Unless required by applicable law or agreed to in writing, software 
 * distributed under the License is distributed on an "AS IS" BASIS, 
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,  
 * either express or implied. See the License for the specific language 
 * governing permissions and limitations under the License. 
 */


package com.voidelement.images.psd.compression {
        import com.voidelement.images.psd.compression.proto.RLEParser;
        
        import flash.utils.ByteArray;
        
        public class ImageRLEParser extends RLEParser {
                private var _channelsData:Array = new Array();
                public function get channelsData():Array { return _channelsData; }
                
                public function ImageRLEParser( channels:int, width:int, height:int, stream:ByteArray ) {
                        var lines:Array = new Array( height * channels );
                        var i:int;
                        
                        for ( i = 0; i < height * channels; ++i ) {
                                lines[i] = stream.readUnsignedShort();
                        }
                        
                        for ( var channel:int = 0; channel < channels; ++channel ){
                                var data:ByteArray = new ByteArray();
                                
                                for ( i = 0; i < height; ++i ) {
                                        var line:ByteArray = new ByteArray();
                                        stream.readBytes( line, 0, lines[channel*height+i] );
                                        data.writeBytes( unpack( line ) );
                                }
                                
                                channelsData[channel] = data;
                        }
                }
        }
}