using System;using System.Collections.Generic;using System.Text;using System.Drawing;using System.Drawing.Imaging;using System.IO;using System.Runtime.InteropServices;namespace Zgke.MyImage.ImageFile{    /// <summary>    /// PCX操作类    /// zgke@sina.com    /// qq:116149    /// </summary>    public class ImagePcx    {        /// <summary>        /// PCX文件头        /// </summary>        private class PCXHEAD        {            public byte[] m_Data = http://www.mamicode.com/new byte[128];"错误的byte[]长度不是48");                    Array.Copy(value, 0, m_Data, 16, 48);                }            }            /// <summary>            /// 位知            /// </summary>            public byte Reserved { get { return m_Data[64]; } set { m_Data[64] = value; } }            /// <summary>            /// 未知            /// </summary>            public byte Colour_Planes { get { return m_Data[65]; } set { m_Data[65] = value; } }            /// <summary>            /// 解码缓冲区            /// </summary>            public ushort Bytes_Per_Line { get { return BitConverter.ToUInt16(m_Data, 66); } set { SetUshort(66, value); } }            /// <summary>            /// 位知            /// </summary>            public ushort Palette_Type { get { return BitConverter.ToUInt16(m_Data, 68); } set { SetUshort(68, value); } }            /// <summary>            /// 填充            /// </summary>            public byte[] Filler            {                get                {                    byte[] m_Bytes = new byte[58];                    Array.Copy(m_Data, 70, m_Bytes, 0, 58);                    return m_Bytes;                }            }            public PCXHEAD(byte[] p_Data)            {                Array.Copy(p_Data, m_Data, 128);            }            public PCXHEAD()            {                m_Data[0] = 0xA;                Version = 0x5;                Encoding = 0x1;                Bits_Per_Pixel = 0x8;                Palette = new byte[] { 0x00, 0x00, 0xCD, 0x00, 0x90, 0xE7, 0x37, 0x01, 0x80, 0xF6, 0x95, 0x7C, 0x28, 0xFB, 0x95, 0x7C, 0xFF, 0xFF, 0xFF, 0xFF, 0x23, 0xFB, 0x95, 0x7C, 0xB3, 0x16, 0x34, 0x7C, 0x00, 0x00, 0xCD, 0x00, 0x00, 0x00, 0x00, 0x00, 0xB8, 0x16, 0x34, 0x7C, 0x64, 0xF3, 0x37, 0x01, 0xD8, 0x54, 0xB8, 0x00 };                Reserved = 0x01;                Colour_Planes = 0x03;                Palette_Type = 1;            }            public int Width { get { return Xmax - Xmin + 1; } }            public int Height { get { return Ymax - Ymin + 1; } }            /// <summary>            /// 设置16位数据保存到数据表            /// </summary>            /// <param name="p_Index">索引</param>            /// <param name="p_Data">数据</param>            private void SetUshort(int p_Index, ushort p_Data)            {                byte[] _ValueBytes = BitConverter.GetBytes(p_Data);                m_Data[p_Index] = _ValueBytes[0];                m_Data[p_Index + 1] = _ValueBytes[1];            }        }        private PCXHEAD m_Head = new PCXHEAD();        private Bitmap m_Image;        /// <summary>        /// 获取图形        /// </summary>        public Bitmap PcxImage { get { return m_Image; } set { m_Image = value; } }        public ImagePcx(string p_FileFullName)        {            if (!File.Exists(p_FileFullName)) return;            Load(File.ReadAllBytes(p_FileFullName));        }        public ImagePcx(byte[] p_Data)        {            Load(p_Data);        }        public ImagePcx()        {                             }        /// <summary>        /// 开始获取数据        /// </summary>        /// <param name="p_Bytes">PCX文件信息</param>        private void Load(byte[] p_Bytes)        {            byte[] _Bytes = p_Bytes;            if (_Bytes[0] != 0x0A) return;                        m_Head = new PCXHEAD(_Bytes);            m_ReadIndex = 128;            PixelFormat _PixFormate = PixelFormat.Format24bppRgb;            if (m_Head.Colour_Planes == 1)            {                switch (m_Head.Bits_Per_Pixel)                {                    case 8:                        _PixFormate = PixelFormat.Format8bppIndexed;                        break;                    case 1:                        _PixFormate = PixelFormat.Format1bppIndexed;                        break;                }            }            m_Image = new Bitmap(m_Head.Width, m_Head.Height, _PixFormate);            BitmapData _Data = http://www.mamicode.com/m_Image.LockBits(new Rectangle(0, 0, m_Image.Width, m_Image.Height), ImageLockMode.ReadWrite, _PixFormate);"p_FileFullName">完成路径</param>        public void Save(string p_FileFullName)        {            if (m_Image == null) return;            m_Head.Xmax = (ushort)(m_Image.Width - 1);            m_Head.Ymax = (ushort)(m_Image.Height - 1);            m_Head.Vres1 = (ushort)(m_Head.Xmax + 1);            m_Head.Hres1 = (ushort)(m_Head.Ymax + 1);            m_Head.Bytes_Per_Line = (ushort)m_Head.Width;            MemoryStream _SaveData = http://www.mamicode.com/new MemoryStream();"p_Data">数据</param>        /// <returns>BMP的行信息</returns>        private byte[] LoadPCXLine24(byte[] p_Data)        {            int _LineWidth = m_Head.Bytes_Per_Line;            byte[] _ReturnBytes = new byte[_LineWidth * 3];            int _EndBytesLength = p_Data.Length - 1;            int _WriteIndex = 2;            int _ReadIndex = 0;            while (true)            {                if (m_ReadIndex > _EndBytesLength) break; //判断行扫描结束返回码                byte _Data = http://www.mamicode.com/p_Data[m_ReadIndex];"p_Data">数据</param>        /// <returns>BMP的行信息</returns>        private byte[] LoadPCXLine8(byte[] p_Data)        {            int _LineWidth = m_Head.Bytes_Per_Line;            byte[] _ReturnBytes = new byte[_LineWidth];            int _EndBytesLength = p_Data.Length - 1 - (256 * 3);         //数据行不够就不执行了。。            int _ReadIndex = 0;            while (true)            {                if (m_ReadIndex > _EndBytesLength) break; //判断行扫描结束返回码                  byte _Data = http://www.mamicode.com/p_Data[m_ReadIndex];"p_Data">数据</param>        /// <returns>BMP的行信息</returns>        private byte[] LoadPCXLine1(byte[] p_Data)        {            int _LineWidth = m_Head.Bytes_Per_Line;            byte[] _ReturnBytes = new byte[_LineWidth];                   int _ReadIndex = 0;            while (true)            {                 byte _Data = http://www.mamicode.com/p_Data[m_ReadIndex];"p_Data">原始数据</param>        /// <returns>数据</returns>        private byte[] SavePCXLine8(byte[] p_Data)        {            MemoryStream _Memory = new MemoryStream();                        byte  _Value = http://www.mamicode.com/p_Data[m_SaveIndex];"p_Data">原始数据</param>        /// <returns>数据</returns>        private byte[] SavePCXLine24(byte[] p_Data)        {            MemoryStream _Read = new MemoryStream();            MemoryStream _Green = new MemoryStream();            MemoryStream _Blue = new MemoryStream();            for (int i = 0; i != m_Head.Width; i++)            {                _Read.WriteByte(p_Data[m_SaveIndex+2]);                _Green.WriteByte(p_Data[m_SaveIndex+1]);                _Blue.WriteByte(p_Data[m_SaveIndex]);                m_SaveIndex += 3;            }            MemoryStream _All = new MemoryStream();            int _OleIndex = m_SaveIndex;            m_SaveIndex = 0;            byte[] _Bytes = SavePCXLine8(_Read.ToArray());            _All.Write(_Bytes, 0, _Bytes.Length);            m_SaveIndex = 0;            _Bytes = SavePCXLine8(_Green.ToArray());            _All.Write(_Bytes, 0, _Bytes.Length);            m_SaveIndex = 0;            _Bytes = SavePCXLine8(_Blue.ToArray());            _All.Write(_Bytes, 0, _Bytes.Length);            m_SaveIndex = _OleIndex;            return _All.ToArray();        }        #endregion    }}