学步园

这个结构有点像RIFF文件。。是分段的。但要注意ANNO这个描述字段 必须是使用2个字节 否则ACDSEE无法识别。

图形数据区的数据存放也和别的图形文件有天地之区别。

例如 256色图形 第1个字节放的是 前8个相素的最第位   后面依次类推。知道相素的最后一个最底位完毕并补码后 才是相素的底2位。

也就是说  宽为16的图形  第1-2字节 是放最低位   3-4 放的低2位   5-6为3位 。。。一直到 15-16 为最高位

24位色 的 也是这样  就是先是 R数据 然后是G流 最后是B

使用方法

       //显示RSB文件
            ImageIFF _Iff = new ImageIFF(@"D:/temp/4.IFF");
            pictureBox1.Image = _Iff.Image;

            //保存
            ImageIFF _Iff = new ImageIFF();
            _Iff.Image = (Bitmap)Image.FromFile(@"d:/TEMP/1.bmp");
            _Iff.SaveImage(@"d:/temp/ok.IFF");

全部代码

/// <summary><br /> /// IFF文件结构<br /> /// zgke@sina.com<br /> /// QQ:116149<br /> /// </summary><br /> public class ImageIFF<br /> {<br /> private uint m_Heard = 0x4d524f46; //FROM<br /> private uint m_FileSize = 0;<br /> private uint m_FileType = 0x4d424c49; //ILBM</p> <p> private IList<ImageIFFOfANNO> m_ANNO = new List<ImageIFFOfANNO>();</p> <p> private ImageIffOfBMHD m_BMHD = new ImageIffOfBMHD();</p> <p> private ImageIffOfCMAP m_CMAP = new ImageIffOfCMAP();</p> <p> /// <summary><br /> /// 图形区域<br /> /// </summary><br /> private Bitmap m_Bitmap;</p> <p> /// <summary><br /> /// 描述字段<br /> /// </summary><br /> public IList<ImageIFFOfANNO> ANNO { get { return m_ANNO; } set { m_ANNO = value; } }</p> <p> /// <summary><br /> /// 图形区域<br /> /// </summary><br /> public Bitmap Image { get { return m_Bitmap; } set { m_Bitmap = value; } }</p> <p> public ImageIFF()<br /> {<br /> }</p> <p> public ImageIFF(string p_FileName)<br /> {<br /> if (!File.Exists(p_FileName)) throw new Exception("文件不存在！");<br /> byte[] _Bytes = File.ReadAllBytes(p_FileName);<br /> if (BitConverter.ToInt32(_Bytes, 0) != m_Heard) throw new Exception("文件不是IFF文件！");<br /> m_FileSize = BytesToUint(_Bytes, 4);<br /> if (m_FileSize != _Bytes.Length - 8) throw new Exception("文件大小不正确！");<br /> if (BitConverter.ToInt32(_Bytes, 8) != m_FileType) throw new Exception("文件格式不正确！");<br /> LoadData(_Bytes, 12);<br /> }</p> <p> /// <summary><br /> /// 获取数据<br /> /// </summary><br /> /// <param name="p_FileBytes"></param><br /> /// <param name="p_Index">开始位置</param><br /> private void LoadData(byte[] p_FileBytes, uint p_Index)<br /> {<br /> if (p_Index >= p_FileBytes.Length) return;<br /> uint _ReadIndex = p_Index + 4;<br /> string _TypeText = Encoding.ASCII.GetString(p_FileBytes, (int)p_Index, 4);<br /> switch (_TypeText)<br /> {<br /> case "ANNO": //描述表<br /> m_ANNO.Add(new ImageIFFOfANNO(p_FileBytes, ref _ReadIndex));<br /> break;<br /> case "BMHD": //图形属性表<br /> m_BMHD = new ImageIffOfBMHD(p_FileBytes, ref _ReadIndex);<br /> break;<br /> case "CMAP": //颜色表<br /> m_CMAP = new ImageIffOfCMAP(p_FileBytes, ref _ReadIndex);<br /> break;<br /> case "BODY": //图形区域<br /> LoadImage(p_FileBytes, ref _ReadIndex);<br /> break;<br /> }<br /> LoadData(p_FileBytes, _ReadIndex);<br /> }</p> <p> /// <summary><br /> /// 获取图形数据<br /> /// </summary><br /> /// <param name="p_FileBytes"></param><br /> /// <param name="p_ReadIndex"></param><br /> private void LoadImage(byte[] p_FileBytes, ref uint p_ReadIndex)<br /> {<br /> uint _Size = ImageIFF.BytesToUint(p_FileBytes, (int)p_ReadIndex);<br /> p_ReadIndex += 4;<br /> m_Bitmap = new Bitmap(m_BMHD.Width, m_BMHD.Height, m_BMHD.Pixel);<br /> BitmapData _BitmapData = m_Bitmap.LockBits(new Rectangle(0, 0, m_Bitmap.Width, m_Bitmap.Height), ImageLockMode.ReadWrite, m_Bitmap.PixelFormat);<br /> byte[] _WriteBytes = new byte[_BitmapData.Stride * _BitmapData.Height];<br /> uint _ReadStride = _Size / (uint)_BitmapData.Height / 8;<br /> int _WriteIndex = 0;<br /> byte[] _ReadBytes = new byte[_Size / (uint)_BitmapData.Height];<br /> int _ReadBitArray = (int)_ReadStride * 8;</p> <p> switch (m_Bitmap.PixelFormat)<br /> {<br /> default:<br /> throw new Exception("未实现");<br /> case PixelFormat.Format8bppIndexed:<br /> for (int i = 0; i != _BitmapData.Height; i++)<br /> {<br /> _WriteIndex = i * _BitmapData.Stride;<br /> Array.Copy(p_FileBytes, p_ReadIndex, _ReadBytes, 0, _ReadBytes.Length); //复制一行数据到缓冲区<br /> p_ReadIndex += (uint)_ReadBytes.Length; //定义到下一行获取的位置<br /> System.Collections.BitArray _ReadArray = new System.Collections.BitArray(_ReadBytes); //1是true 0是false<br /> System.Collections.BitArray _WriteArray = new System.Collections.BitArray(new byte[] { 0 }); //1是true 0是false </p> <p> for (int z = 0; z != _BitmapData.Width; z++)<br /> {<br /> int _ReadIndex = ((z / 8) * 8) + 7 - (z % 8); //获取顺序为 7 6 5 4 3 2 1 0 15 14 13 12 11 10 9 8 23<br /> _WriteArray[0] = _ReadArray[_ReadIndex];<br /> _WriteArray[1] = _ReadArray[_ReadBitArray + _ReadIndex];<br /> _WriteArray[2] = _ReadArray[(_ReadBitArray * 2) + _ReadIndex];<br /> _WriteArray[3] = _ReadArray[(_ReadBitArray * 3) + _ReadIndex];<br /> _WriteArray[4] = _ReadArray[(_ReadBitArray * 4) + _ReadIndex];<br /> _WriteArray[5] = _ReadArray[(_ReadBitArray * 5) + _ReadIndex];<br /> _WriteArray[6] = _ReadArray[(_ReadBitArray * 6) + _ReadIndex];<br /> _WriteArray[7] = _ReadArray[(_ReadBitArray * 7) + _ReadIndex];<br /> _WriteArray.CopyTo(_WriteBytes, _WriteIndex + z);<br /> }<br /> }<br /> #region 设置颜色表<br /> ColorPalette _Palette = m_Bitmap.Palette;<br /> for (int i = 0; i != m_CMAP.ColorList.Length; i++)<br /> {<br /> _Palette.Entries[i] = m_CMAP.ColorList[i];<br /> }<br /> m_Bitmap.Palette = _Palette;<br /> #endregion<br /> break;<br /> case PixelFormat.Format24bppRgb:<br /> int _Stride = _ReadBitArray / 3; //行内便宜 也就是行的点数的 (X/16)*16+(X%16==0?0:16);<br /> _ReadBitArray = (int)_Size / _BitmapData.Height / 3 * 8; //所有颜色分量后的色彩位置 也就是所有行的位置<br /> for (int i = 0; i != _BitmapData.Height; i++)<br /> {<br /> _WriteIndex = i * _BitmapData.Stride;<br /> Array.Copy(p_FileBytes, p_ReadIndex, _ReadBytes, 0, _ReadBytes.Length); //复制一行数据到缓冲区<br /> p_ReadIndex += (uint)_ReadBytes.Length; //定义到下一行获取的位置<br /> System.Collections.BitArray _ReadArray = new System.Collections.BitArray(_ReadBytes); //1是true 0是false<br /> System.Collections.BitArray _WriteRedArray = new System.Collections.BitArray(new byte[] { 0 }); //1是true 0是false<br /> System.Collections.BitArray _WriteGreenArray = new System.Collections.BitArray(new byte[] { 0 }); //1是true 0是false<br /> System.Collections.BitArray _WriteBlueArray = new System.Collections.BitArray(new byte[] { 0 }); //1是true 0是false </p> <p> for (int z = 0; z != _BitmapData.Width; z++)<br /> {<br /> int _ReadIndex = ((z / 8) * 8) + 7 - (z % 8); //获取顺序为 7 6 5 4 3 2 1 0 15 14 13 12 11 10 9 8 23<br /> _WriteRedArray[0] = _ReadArray[_ReadIndex];<br /> _WriteRedArray[1] = _ReadArray[_Stride + _ReadIndex];<br /> _WriteRedArray[2] = _ReadArray[(_Stride * 2) + _ReadIndex];<br /> _WriteRedArray[3] = _ReadArray[(_Stride * 3) + _ReadIndex];<br /> _WriteRedArray[4] = _ReadArray[(_Stride * 4) + _ReadIndex];<br /> _WriteRedArray[5] = _ReadArray[(_Stride * 5) + _ReadIndex];<br /> _WriteRedArray[6] = _ReadArray[(_Stride * 6) + _ReadIndex];<br /> _WriteRedArray[7] = _ReadArray[(_Stride * 7) + _ReadIndex]; //红色</p> <p> _WriteGreenArray[0] = _ReadArray[_ReadBitArray + _ReadIndex];<br /> _WriteGreenArray[1] = _ReadArray[_ReadBitArray + _Stride + _ReadIndex];<br /> _WriteGreenArray[2] = _ReadArray[_ReadBitArray + (_Stride * 2) + _ReadIndex];<br /> _WriteGreenArray[3] = _ReadArray[_ReadBitArray + (_Stride * 3) + _ReadIndex];<br /> _WriteGreenArray[4] = _ReadArray[_ReadBitArray + (_Stride * 4) + _ReadIndex];<br /> _WriteGreenArray[5] = _ReadArray[_ReadBitArray + (_Stride * 5) + _ReadIndex];<br /> _WriteGreenArray[6] = _ReadArray[_ReadBitArray + (_Stride * 6) + _ReadIndex];<br /> _WriteGreenArray[7] = _ReadArray[_ReadBitArray + (_Stride * 7) + _ReadIndex]; //绿</p> <p> _WriteBlueArray[0] = _ReadArray[_ReadBitArray * 2 + _ReadIndex];<br /> _WriteBlueArray[1] = _ReadArray[_ReadBitArray * 2 + _Stride + _ReadIndex];<br /> _WriteBlueArray[2] = _ReadArray[_ReadBitArray * 2 + (_Stride * 2) + _ReadIndex];<br /> _WriteBlueArray[3] = _ReadArray[_ReadBitArray * 2 + (_Stride * 3) + _ReadIndex];<br /> _WriteBlueArray[4] = _ReadArray[_ReadBitArray * 2 + (_Stride * 4) + _ReadIndex];<br /> _WriteBlueArray[5] = _ReadArray[_ReadBitArray * 2 + (_Stride * 5) + _ReadIndex];<br /> _WriteBlueArray[6] = _ReadArray[_ReadBitArray * 2 + (_Stride * 6) + _ReadIndex];<br /> _WriteBlueArray[7] = _ReadArray[_ReadBitArray * 2 + (_Stride * 7) + _ReadIndex]; //蓝</p> <p> _WriteRedArray.CopyTo(_WriteBytes, _WriteIndex + z * 3 + 2);<br /> _WriteGreenArray.CopyTo(_WriteBytes, _WriteIndex + z * 3 + 1);<br /> _WriteBlueArray.CopyTo(_WriteBytes, _WriteIndex + z * 3);<br /> }</p> <p> }<br /> break;<br /> }<br /> Marshal.Copy(_WriteBytes, 0, _BitmapData.Scan0, _WriteBytes.Length);<br /> m_Bitmap.UnlockBits(_BitmapData);</p> <p> }</p> <p> /// <summary><br /> /// 保存数据到文件<br /> /// </summary><br /> /// <param name="p_File"></param><br /> public void SaveImage(string p_File)<br /> {<br /> if (m_Bitmap == null) return;<br /> m_ANNO.Add(new ImageIFFOfANNO("IFF-File C#ImageIFF zgke@sina.com"));<br /> System.IO.File.WriteAllBytes(p_File, GetFileBytes());<br /> }</p> <p> /// <summary><br /> /// 保存图形<br /> /// </summary><br /> /// <returns></returns><br /> private byte[] GetFileBytes()<br /> {<br /> MemoryStream _Stream = new MemoryStream();<br /> _Stream.Write(BitConverter.GetBytes(m_Heard), 0, 4);<br /> _Stream.Write(new byte[] { 0, 0, 0, 0 }, 0, 4);<br /> _Stream.Write(BitConverter.GetBytes(m_FileType), 0, 4);<br /> byte[] _WriteBytes = new byte[0];<br /> for (int i = 0; i != m_ANNO.Count; i++)<br /> {<br /> _WriteBytes = m_ANNO[i].GetBytes();<br /> _Stream.Write(_WriteBytes, 0, _WriteBytes.Length);<br /> }<br /> _WriteBytes = m_BMHD.GetBytes(m_Bitmap);<br /> _Stream.Write(_WriteBytes, 0, _WriteBytes.Length);</p> <p> switch (m_Bitmap.PixelFormat)<br /> {<br /> case PixelFormat.Format8bppIndexed:<br /> _Stream.Write(new byte[] { 0x43, 0x4D, 0x41, 0x50 }, 0, 4);<br /> _Stream.Write(ImageIFF.UintToBytes((uint)768), 0, 4);<br /> for (int i = 0; i != 256; i++)<br /> {<br /> _Stream.Write(new byte[] { m_Bitmap.Palette.Entries[i].R, m_Bitmap.Palette.Entries[i].G, m_Bitmap.Palette.Entries[i].B }, 0, 3);<br /> }<br /> break;<br /> default:<br /> break;<br /> }</p> <p> byte[] _ImageBytes = SaveImage();<br /> _Stream.Write(new byte[] { 0x42, 0x4F, 0x44, 0x59 }, 0, 4);<br /> _Stream.Write(ImageIFF.UintToBytes((uint)_ImageBytes.Length), 0, 4);<br /> _Stream.Write(_ImageBytes, 0, _ImageBytes.Length);</p> <p> m_FileSize = (uint)_Stream.Length - 8;<br /> _Stream.Position = 4;<br /> _Stream.Write(ImageIFF.UintToBytes(m_FileSize), 0, 4);<br /> return _Stream.ToArray();<br /> }</p> <p> private byte[] SaveImage()<br /> {<br /> Bitmap _NewBitmap;<br /> BitmapData _Data;<br /> byte[] _ReadBytes;<br /> int _ReadStride = 0;<br /> int _WriteBitArray = 0;<br /> int _Stride = 0;<br /> int _WidthOne = 0;<br /> int _WidthAll = 0;</p> <p> byte[] _WriteBytes;<br /> byte[] _WriteRowBytes;<br /> int _ReadIndex = 0;<br /> int _WriteIndex = 0;</p> <p> switch (m_Bitmap.PixelFormat)<br /> {<br /> case PixelFormat.Format8bppIndexed:<br /> _Data = m_Bitmap.LockBits(new Rectangle(0, 0, m_Bitmap.Width, m_Bitmap.Height), ImageLockMode.ReadOnly, PixelFormat.Format8bppIndexed);<br /> _ReadBytes = new byte[_Data.Stride * _Data.Height];<br /> _ReadStride = _Data.Stride;<br /> Marshal.Copy(_Data.Scan0, _ReadBytes, 0, _ReadBytes.Length);<br /> m_Bitmap.UnlockBits(_Data);<br /> _WidthOne = (m_Bitmap.Width / 16) * 16 + (m_Bitmap.Width % 16 == 0 ? 0 : 16);<br /> _WidthAll = _WidthOne * m_Bitmap.Height;<br /> _WriteBytes = new byte[_WidthAll];<br /> _WriteRowBytes = new byte[_WidthOne];<br /> _WriteBitArray = _WidthOne;<br /> for (int i = 0; i != m_Bitmap.Height; i++)<br /> {<br /> _ReadIndex = i * _ReadStride;<br /> Array.Copy(_WriteBytes, i * _WriteRowBytes.Length, _WriteRowBytes, 0, _WriteRowBytes.Length);<br /> System.Collections.BitArray _WriteArray = new System.Collections.BitArray(_WriteRowBytes);</p> <p> for (int z = 0; z != m_Bitmap.Width; z++)<br /> {<br /> System.Collections.BitArray _ColorArray = new System.Collections.BitArray(new byte[] { _ReadBytes[_ReadIndex + z] });</p> <p> _WriteIndex = ((z / 8) * 8) + 7 - (z % 8); //获取顺序为 7 6 5 4 3 2 1 0 15 14 13 12 11 10 9 8 23<br /> _WriteArray[_WriteIndex] = _ColorArray[0];<br /> _WriteArray[_WriteBitArray + _WriteIndex] = _ColorArray[1];<br /> _WriteArray[(_WriteBitArray * 2) + _WriteIndex] = _ColorArray[2];<br /> _WriteArray[(_WriteBitArray * 3) + _WriteIndex] = _ColorArray[3];<br /> _WriteArray[(_WriteBitArray * 4) + _WriteIndex] = _ColorArray[4];<br /> _WriteArray[(_WriteBitArray * 5) + _WriteIndex] = _ColorArray[5];<br /> _WriteArray[(_WriteBitArray * 6) + _WriteIndex] = _ColorArray[6];<br /> _WriteArray[(_WriteBitArray * 7) + _WriteIndex] = _ColorArray[7];<br /> }<br /> _WriteArray.CopyTo(_WriteRowBytes, 0);<br /> Array.Copy(_WriteRowBytes, 0, _WriteBytes, i * _WriteRowBytes.Length, _WriteRowBytes.Length);<br /> }<br /> return _WriteBytes;<br /> break;<br /> default:<br /> _NewBitmap = new Bitmap(m_Bitmap.Width, m_Bitmap.Height, PixelFormat.Format24bppRgb);<br /> Graphics _Graphics = Graphics.FromImage(_NewBitmap);<br /> _Graphics.DrawImage(m_Bitmap, new Rectangle(0, 0, m_Bitmap.Width, m_Bitmap.Height));<br /> _Graphics.Dispose();<br /> _Data = _NewBitmap.LockBits(new Rectangle(0, 0, m_Bitmap.Width, m_Bitmap.Height), ImageLockMode.ReadOnly, PixelFormat.Format24bppRgb);<br /> _ReadBytes = new byte[_Data.Stride * _Data.Height];<br /> _ReadStride = _Data.Stride;<br /> Marshal.Copy(_Data.Scan0, _ReadBytes, 0, _ReadBytes.Length);<br /> _NewBitmap.UnlockBits(_Data);</p> <p> _WidthOne = (_NewBitmap.Width / 16) * 16 + (_NewBitmap.Width % 16 == 0 ? 0 : 16);<br /> _WidthAll = _WidthOne * 3 * _NewBitmap.Height;</p> <p> _WriteBytes = new byte[_WidthAll];<br /> _WriteRowBytes = new byte[_WidthOne * 3];<br /> _ReadIndex = 0;<br /> _WriteIndex = 0;<br /> _WriteBitArray = _WidthOne * 8;<br /> _Stride = _WidthOne;<br /> for (int i = 0; i != _NewBitmap.Height; i++)<br /> {<br /> _ReadIndex = i * _ReadStride;<br /> Array.Copy(_WriteBytes, i * _WriteRowBytes.Length, _WriteRowBytes, 0, _WriteRowBytes.Length);<br /> System.Collections.BitArray _WriteArray = new System.Collections.BitArray(_WriteRowBytes);</p> <p> for (int z = 0; z != _NewBitmap.Width; z++)<br /> {<br /> byte[] _Color = new byte[] { _ReadBytes[_ReadIndex + (z * 3) + 2], _ReadBytes[_ReadIndex + (z * 3) + 1], _ReadBytes[_ReadIndex + (z * 3)] };<br /> System.Collections.BitArray _ColorArray = new System.Collections.BitArray(_Color);</p> <p> _WriteIndex = ((z / 8) * 8) + 7 - (z % 8); //获取顺序为 7 6 5 4 3 2 1 0 15 14 13 12 11 10 9 8 23<br /> _WriteArray[_WriteIndex] = _ColorArray[0];<br /> _WriteArray[_Stride + _WriteIndex] = _ColorArray[1];<br /> _WriteArray[(_Stride * 2) + _WriteIndex] = _ColorArray[2];<br /> _WriteArray[(_Stride * 3) + _WriteIndex] = _ColorArray[3];<br /> _WriteArray[(_Stride * 4) + _WriteIndex] = _ColorArray[4];<br /> _WriteArray[(_Stride * 5) + _WriteIndex] = _ColorArray[5];<br /> _WriteArray[(_Stride * 6) + _WriteIndex] = _ColorArray[6];<br /> _WriteArray[(_Stride * 7) + _WriteIndex] = _ColorArray[7]; //红色</p> <p> _WriteArray[_WriteBitArray + _WriteIndex] = _ColorArray[8];<br /> _WriteArray[_WriteBitArray + _Stride + _WriteIndex] = _ColorArray[9];<br /> _WriteArray[_WriteBitArray + (_Stride * 2) + _WriteIndex] = _ColorArray[10];<br /> _WriteArray[_WriteBitArray + (_Stride * 3) + _WriteIndex] = _ColorArray[11];<br /> _WriteArray[_WriteBitArray + (_Stride * 4) + _WriteIndex] = _ColorArray[12];<br /> _WriteArray[_WriteBitArray + (_Stride * 5) + _WriteIndex] = _ColorArray[13];<br /> _WriteArray[_WriteBitArray + (_Stride * 6) + _WriteIndex] = _ColorArray[14];<br /> _WriteArray[_WriteBitArray + (_Stride * 7) + _WriteIndex] = _ColorArray[15]; //绿</p> <p> _WriteArray[_WriteBitArray * 2 + _WriteIndex] = _ColorArray[16];<br /> _WriteArray[_WriteBitArray * 2 + _Stride + _WriteIndex] = _ColorArray[17];<br /> _WriteArray[_WriteBitArray * 2 + (_Stride * 2) + _WriteIndex] = _ColorArray[18];<br /> _WriteArray[_WriteBitArray * 2 + (_Stride * 3) + _WriteIndex] = _ColorArray[19];<br /> _WriteArray[_WriteBitArray * 2 + (_Stride * 4) + _WriteIndex] = _ColorArray[20];<br /> _WriteArray[_WriteBitArray * 2 + (_Stride * 5) + _WriteIndex] = _ColorArray[21];<br /> _WriteArray[_WriteBitArray * 2 + (_Stride * 6) + _WriteIndex] = _ColorArray[22];<br /> _WriteArray[_WriteBitArray * 2 + (_Stride * 7) + _WriteIndex] = _ColorArray[23]; //蓝</p> <p> }</p> <p> _WriteArray.CopyTo(_WriteRowBytes, 0);<br /> Array.Copy(_WriteRowBytes, 0, _WriteBytes, i * _WriteRowBytes.Length, _WriteRowBytes.Length);<br /> }<br /> _NewBitmap.Dispose();<br /> return _WriteBytes;<br /> break;<br /> }<br /> return new byte[0];<br /> }</p> <p> #region 结构类<br /> /// <summary><br /> /// ANNO描述字段<br /> /// </summary><br /> public class ImageIFFOfANNO<br /> {<br /> public ImageIFFOfANNO(byte[] p_FileBytes, ref uint p_ReadIndex)<br /> {<br /> m_Size = ImageIFF.BytesToUint(p_FileBytes, (int)p_ReadIndex);<br /> p_ReadIndex += 4;<br /> m_Text = Encoding.Default.GetString(p_FileBytes, (int)p_ReadIndex, (int)m_Size);<br /> p_ReadIndex += m_Size;<br /> }</p> <p> public ImageIFFOfANNO(string p_Txt)<br /> {<br /> Text = p_Txt;<br /> }</p> <p> public ImageIFFOfANNO()<br /> {<br /> }</p> <p> private uint m_Size = 0;<br /> private string m_Text = "";</p> <p> public string Text<br /> {<br /> get<br /> {<br /> return m_Text;<br /> }<br /> set<br /> {<br /> m_Text = value;<br /> }<br /> }</p> <p> /// <summary><br /> /// 获取对应的字节数<br /> /// </summary><br /> /// <returns></returns><br /> public byte[] GetBytes()<br /> {<br /> if (m_Text.Length == 0) return new byte[0];<br /> MemoryStream _Stream = new MemoryStream();<br /> _Stream.Write(new byte[] { 0x41, 0x4E, 0x4E, 0x4F }, 0, 4);<br /> byte[] _TextBytes = Encoding.Default.GetBytes(m_Text);<br /> int _Count = _TextBytes.Length;<br /> if (_TextBytes.Length % 2 != 0) _Count++;<br /> byte[] _ValueBytes = ImageIFF.UintToBytes((uint)_Count);<br /> _Stream.Write(_ValueBytes, 0, _ValueBytes.Length);<br /> _Stream.Write(_TextBytes, 0, _TextBytes.Length);<br /> if (_TextBytes.Length % 2 != 0) _Stream.Write(new byte[] { 0x20 }, 0, 1);<br /> return _Stream.ToArray();<br /> }<br /> }</p> <p> /// <summary><br /> /// 图形设置<br /> /// </summary><br /> private class ImageIffOfBMHD<br /> {<br /> /// <summary><br /> /// 区域大小<br /> /// </summary><br /> private uint m_Size = 20;</p> <p> private ushort m_Width = 0;</p> <p> private ushort m_Height = 0;</p> <p> private ushort m_X = 0;</p> <p> private ushort m_Y = 0;</p> <p> private PixelFormat m_Pixel = PixelFormat.Format24bppRgb;</p> <p> private byte m_Masking = 0;</p> <p> private byte m_Compression = 0;</p> <p> private byte m_Padl = 0;</p> <p> private ushort m_TColor = 0;</p> <p> private byte m_XAspect = 0;</p> <p> private byte m_YAspect = 0;</p> <p> private ushort m_PWidth = 0;</p> <p> private ushort m_PHeight = 0;</p> <p> /// <summary><br /> /// 0不压缩 1压缩<br /> /// </summary><br /> public byte Compression { get { return m_Compression; } set { m_Compression = value; } }</p> <p> /// <summary><br /> /// 宽<br /> /// </summary><br /> public ushort Width { get { return m_Width; } set { m_Width = value; } }</p> <p> /// <summary><br /> /// 高<br /> /// </summary><br /> public ushort Height { get { return m_Height; } set { m_Height = value; } }</p> <p> /// <summary><br /> /// 颜色数<br /> /// </summary><br /> public PixelFormat Pixel { get { return m_Pixel; } set { m_Pixel = value; } }</p> <p> public ImageIffOfBMHD()<br /> {</p> <p> }<br /> public ImageIffOfBMHD(byte[] p_FileBytes, ref uint p_ReadIndex)<br /> {<br /> m_Size = ImageIFF.BytesToUint(p_FileBytes, (int)p_ReadIndex);<br /> p_ReadIndex += 4;<br /> m_Width = ImageIFF.BytesToShort(p_FileBytes, (int)p_ReadIndex);<br /> p_ReadIndex += 2;<br /> m_Height = ImageIFF.BytesToShort(p_FileBytes, (int)p_ReadIndex);<br /> p_ReadIndex += 2;<br /> m_X = ImageIFF.BytesToShort(p_FileBytes, (int)p_ReadIndex);<br /> p_ReadIndex += 2;<br /> m_Y = ImageIFF.BytesToShort(p_FileBytes, (int)p_ReadIndex);<br /> p_ReadIndex += 2;<br /> switch (p_FileBytes[p_ReadIndex])<br /> {<br /> case 8:<br /> m_Pixel = PixelFormat.Format8bppIndexed;<br /> break;<br /> case 24:<br /> m_Pixel = PixelFormat.Format24bppRgb;<br /> break;<br /> default:<br /> throw new Exception("未实现！");<br /> }<br /> p_ReadIndex++;</p> <p> m_Masking = p_FileBytes[p_ReadIndex];<br /> p_ReadIndex++;</p> <p> m_Compression = p_FileBytes[p_ReadIndex];<br /> if (m_Compression != 0) throw new Exception("未实现RLE压缩的IFF图形");<br /> p_ReadIndex++;<br /> m_Padl = p_FileBytes[p_ReadIndex];<br /> p_ReadIndex++;<br /> m_TColor = ImageIFF.BytesToShort(p_FileBytes, (int)p_ReadIndex);<br /> p_ReadIndex += 2;<br /> m_XAspect = p_FileBytes[p_ReadIndex];<br /> p_ReadIndex++;<br /> m_YAspect = p_FileBytes[p_ReadIndex];<br /> p_ReadIndex++;<br /> m_PWidth = ImageIFF.BytesToShort(p_FileBytes, (int)p_ReadIndex); ;<br /> p_ReadIndex += 2;<br /> m_PHeight = ImageIFF.BytesToShort(p_FileBytes, (int)p_ReadIndex); ;<br /> p_ReadIndex += 2;<br /> }</p> <p> /// <summary><br /> /// 根据图形获取数据集<br /> /// </summary><br /> /// <param name="p_Bitmap"></param><br /> /// <returns></returns><br /> public byte[] GetBytes(Bitmap p_Bitmap)<br /> {<br /> if (p_Bitmap == null) return new byte[0];<br /> MemoryStream _Stream = new MemoryStream();<br /> _Stream.Write(new byte[] { 0x42, 0x4D, 0x48, 0x44 }, 0, 4);<br /> _Stream.Write(new byte[] { 0, 0, 0, 0x14 }, 0, 4);<br /> _Stream.Write(ImageIFF.UintToBytes((ushort)p_Bitmap.Width), 0, 2);<br /> _Stream.Write(ImageIFF.UintToBytes((ushort)p_Bitmap.Height), 0, 2);<br /> _Stream.Write(ImageIFF.UintToBytes(m_X), 0, 2);<br /> _Stream.Write(ImageIFF.UintToBytes(m_Y), 0, 2);<br /> switch (p_Bitmap.PixelFormat)<br /> {<br /> case PixelFormat.Format8bppIndexed:<br /> _Stream.WriteByte(8);<br /> break;<br /> default:<br /> _Stream.WriteByte(24);<br /> break;<br /> }<br /> _Stream.WriteByte(0);<br /> _Stream.WriteByte(0);<br /> _Stream.WriteByte(0);<br /> _Stream.Write(ImageIFF.UintToBytes(m_TColor), 0, 2);<br /> _Stream.WriteByte(0);<br /> _Stream.WriteByte(0);<br /> _Stream.Write(ImageIFF.UintToBytes((ushort)p_Bitmap.Width), 0, 2);<br /> _Stream.Write(ImageIFF.UintToBytes((ushort)p_Bitmap.Height), 0, 2);<br /> return _Stream.ToArray();<br /> }<br /> }</p> <p> /// <summary><br /> /// 颜色表<br /> /// </summary><br /> private class ImageIffOfCMAP<br /> {<br /> /// <summary><br /> /// 区域大小<br /> /// </summary><br /> private uint m_Size = 20;</p> <p> /// <summary><br /> /// 颜色表<br /> /// </summary><br /> private Color[] m_ColorList = new Color[256];</p> <p> /// <summary><br /> /// 颜色表<br /> /// </summary><br /> public Color[] ColorList { get { return m_ColorList; } set { m_ColorList = value; m_Size = (uint)m_ColorList.Length * 3; } }</p> <p> public ImageIffOfCMAP()<br /> {</p> <p> }<br /> public ImageIffOfCMAP(byte[] p_FileBytes, ref uint p_ReadIndex)<br /> {<br /> m_Size = ImageIFF.BytesToUint(p_FileBytes, (int)p_ReadIndex);<br /> p_ReadIndex += 4;<br /> int _Count = (int)m_Size / 3;<br /> m_ColorList = new Color[_Count];<br /> for (int i = 0; i != _Count; i++)<br /> {<br /> m_ColorList[i] = Color.FromArgb(p_FileBytes[p_ReadIndex], p_FileBytes[p_ReadIndex + 1], p_FileBytes[p_ReadIndex + 2]);<br /> p_ReadIndex += 3;<br /> }<br /> }<br /> }<br /> #endregion</p> <p> #region 数据转换<br /> /// <summary><br /> /// 字节转换为UINT<br /> /// </summary><br /> /// <param name="p_Value">字节数组</param><br /> /// <param name="p_Index">开始位置</param><br /> /// <returns></returns><br /> public static uint BytesToUint(byte[] p_Value, int p_Index)<br /> {<br /> byte[] _ValueBytes = new byte[4];<br /> _ValueBytes[0] = p_Value[p_Index + 3];<br /> _ValueBytes[1] = p_Value[p_Index + 2];<br /> _ValueBytes[2] = p_Value[p_Index + 1];<br /> _ValueBytes[3] = p_Value[p_Index];<br /> return BitConverter.ToUInt32(_ValueBytes, 0);<br /> }</p> <p> /// <summary><br /> /// 获取反转的BYTES<br /> /// </summary><br /> /// <param name="p_Value"></param><br /> /// <returns></returns><br /> public static byte[] UintToBytes(uint p_Value)<br /> {<br /> byte[] _ValueBytes = BitConverter.GetBytes(p_Value);<br /> Array.Reverse(_ValueBytes);<br /> return _ValueBytes;<br /> }</p> <p> /// <summary><br /> /// 字节转换为UINT<br /> /// </summary><br /> /// <param name="p_Value">字节数组</param><br /> /// <param name="p_Index">开始位置</param><br /> /// <returns></returns><br /> public static ushort BytesToShort(byte[] p_Value, int p_Index)<br /> {<br /> byte[] _ValueBytes = new byte[2];<br /> _ValueBytes[0] = p_Value[p_Index + 1];<br /> _ValueBytes[1] = p_Value[p_Index];<br /> return BitConverter.ToUInt16(_ValueBytes, 0);<br /> }</p> <p> /// <summary><br /> /// 获取反转的BYTES<br /> /// </summary><br /> /// <param name="p_Value"></param><br /> /// <returns></returns><br /> public static byte[] UintToBytes(ushort p_Value)<br /> {<br /> byte[] _ValueBytes = BitConverter.GetBytes(p_Value);<br /> Array.Reverse(_ValueBytes);<br /> return _ValueBytes;<br /> }<br /> #endregion</p> <p> }