hackedteam/rcs-console

// ==================================================================
// Module:            WinBmpEncoder
//
// Description:        Decoder for Windows bitmap
//
// Input/Output:    Bitmap data
//
// Author(s):        C.T. Yeung
//
// History:
// 23Jan09            start coding                                cty
// 21Feb09        fully functional as Windows paint bmp format.
//                - no compression and no 16bpp.                    cty
//
// Copyright (c) 2009 C.T.Yeung

// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:

// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.

// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
// IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
// CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
// TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
// SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
// ==================================================================
package com.WindowsBitmap
{
    import flash.display.BitmapData;
    import flash.geom.Matrix;
    import flash.utils.ByteArray;
    
    public class WinBmpDecoder 
    {
        //protected var _bitmapData:BitmapData;
        
        public var fileHdr:WinBmpFileHdr;
        public var bmpHdr:WinBmpHdr;
        public var bmpPal:WinBmpPal;
        public var bmpImg:WinBmpImg;
        
        public function WinBmpDecoder()
        {
            fileHdr = new WinBmpFileHdr();
            bmpHdr     = new WinBmpHdr();
            bmpPal     = new WinBmpPal();
            bmpImg     = new WinBmpImg();
            
            bmpPal.setRef(bmpHdr, bmpImg);
            bmpImg.setRef(fileHdr, bmpHdr, bmpPal);
        }
        
/////////////////////////////////////////////////////////////////////
// Decode 

        public function get bitDepth():int
        {
            if (!bmpHdr)return -1;
            return bmpHdr.ibiBitCount;
        }
        
        public function get palette():Array
        {
            if(!bmpPal)return null;
            return bmpPal.palette;
        }
        
        public function set bitmapData(bmpData:BitmapData):void
        {
            if(bmpImg)
                bmpImg.bitmapData = bmpData.clone();
        }
        
        public function get bitmapData():BitmapData
        {
            if(!bmpImg) return null;
            return bmpImg.bitmapData;
        }
        
        public function decode(bytes:ByteArray):Boolean
        {
            if(fileHdr.decode(bytes))
                if(bmpHdr.decode(bytes))
                    if(bmpPal.decode(bytes))
                        if(bmpImg.decode(bytes))
                            return true; 
            return false;
        }
    }
}