解析RSB图形结构代码,CSharp代码库,德仔网

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【CSharp】解析RSB图形结构
作者:zgke / 发布于2014/7/29/ 440
文件结构非常简单，就是 16位图 R使用 5位 G使用6位 B使用5位

	
	 //显示RSB文件
	 ImageRsb _RSB = new ImageRsb(@"D:/temp/4.rsb");
	 pictureBox1.Image = _RSB.Image;

	
	 //保存
	 ImageRsb _RSB = new ImageRsb();
	 _RSB.Image = (Bitmap)Image.FromFile(@"d:/TEMP/1.bmp");
	 _RSB.SaveImage(@"d:/temp/ok.rsb");

	  //这个文件不知道ACDSEE为什么标记为24位图形 实际只有16位。

	

	using System;
	using System.Collections.Generic;
	using System.Text;
	using System.IO;
	using System.Runtime.InteropServices;
	using System.Drawing.Imaging;
	using System.Drawing;

	namespace Zgke.MyImage.ImageFile
	{
	 */
	 /// <summary>
	 /// RSB文件结构
	 /// zgke@sina.com
	 /// QQ:116149
	 /// </summary>
	 public class ImageRsb
	 {
	 private Bitmap m_Bitmap;

	 public Bitmap Image { get { return m_Bitmap; } set { m_Bitmap = value; } }

	 private uint m_Heard = 0;

	 private uint m_Width = 0;

	 private uint m_Height = 0;

	 private uint m_No1 = 0;

	 private uint m_No2 = 5;

	 private uint m_No3 = 6;

	 private uint m_No4 = 5;

	 private uint m_No5 = 0;

	
	 public ImageRsb()
	 {
	 }

	 public ImageRsb(string p_FileName)
	 {
	 if (!File.Exists(p_FileName)) throw new Exception("文件不存在！");
	 byte[] _Bytes = File.ReadAllBytes(p_FileName);
	 if (BitConverter.ToUInt32(_Bytes, 0) != 0) throw new Exception("格式不正确！");
	 m_Width = BitConverter.ToUInt32(_Bytes, 4);
	 m_Height = BitConverter.ToUInt32(_Bytes, 8);
	 m_No1 = BitConverter.ToUInt32(_Bytes, 12);
	 m_No2 = BitConverter.ToUInt32(_Bytes, 16);
	 m_No3 = BitConverter.ToUInt32(_Bytes, 20);
	 m_No4 = BitConverter.ToUInt32(_Bytes, 24);
	 m_No5 = BitConverter.ToUInt32(_Bytes, 28);
	 if (m_No1 != 0 || m_No2 != 5 || m_No3 != 6 || m_No4 != 5 || m_No5 != 0) throw new Exception("未实现！");
	 if (m_Width * m_Height * 2 != _Bytes.Length - 32) throw new Exception("文件长度不正确！");
	 LoadImage(_Bytes, 32);
	 }

	 /// <summary>
	 /// 获取图形数据
	 /// </summary>
	 /// <param name="p_FileBytes"></param>
	 /// <param name="p_ReadIndex"></param>
	 private void LoadImage(byte[] p_FileBytes, int p_ReadIndex)
	 {
	 m_Bitmap = new Bitmap((int)m_Width, (int)m_Height, PixelFormat.Format16bppRgb565);
	 BitmapData _BitmapData = m_Bitmap.LockBits(new Rectangle(0, 0, m_Bitmap.Width, m_Bitmap.Height), ImageLockMode.ReadWrite, m_Bitmap.PixelFormat);
	 byte[] _WriteBytes = new byte[_BitmapData.Stride * _BitmapData.Height];
	 int _StarReadIndex = p_ReadIndex;
	 int _RowCount = (int)m_Width * 2;
	 for (int i = 0; i != _BitmapData.Height; i++)
	 {
	 Array.Copy(p_FileBytes, _StarReadIndex, _WriteBytes, i * _BitmapData.Stride, _RowCount);
	 _StarReadIndex += _RowCount;
	 }
	 Marshal.Copy(_WriteBytes, 0, _BitmapData.Scan0, _WriteBytes.Length);
	 m_Bitmap.UnlockBits(_BitmapData);
	 }

	 /// <summary>
	 /// 保存数据到文件
	 /// </summary>
	 /// <param name="p_File"></param>
	 public void SaveImage(string p_File)
	 {
	 if (m_Bitmap == null) return;
	 System.IO.File.WriteAllBytes(p_File, GetFileBytes());
	 }

	 /// <summary>
	 /// 保存图形
	 /// </summary>
	 /// <returns></returns>
	 private byte[] GetFileBytes()
	 {
	 MemoryStream _Stream = new MemoryStream();
	 _Stream.Write(BitConverter.GetBytes(m_Heard), 0, 4);
	 _Stream.Write(BitConverter.GetBytes((uint)m_Bitmap.Width), 0, 4);
	 _Stream.Write(BitConverter.GetBytes((uint)m_Bitmap.Height), 0, 4);
	 _Stream.Write(BitConverter.GetBytes(m_No1), 0, 4);
	 _Stream.Write(BitConverter.GetBytes(m_No2), 0, 4);
	 _Stream.Write(BitConverter.GetBytes(m_No3), 0, 4);
	 _Stream.Write(BitConverter.GetBytes(m_No4), 0, 4);
	 _Stream.Write(BitConverter.GetBytes(m_No5), 0, 4);
	 byte[] _ImageBytes = SaveImage();
	 _Stream.Write(_ImageBytes, 0, _ImageBytes.Length);
	 return _Stream.ToArray();
	 }

	 /// <summary>
	 /// 获取图形数据区
	 /// </summary>
	 /// <returns></returns>
	 private byte[] SaveImage()
	 {
	 Bitmap _NewBitmap = new Bitmap(m_Bitmap.Width, m_Bitmap.Height, PixelFormat.Format16bppRgb565);
	 byte[] _WriteBytes = new byte[m_Bitmap.Width * m_Bitmap.Height * 2];
	 int _RowCount = m_Bitmap.Width * 2;

	 Graphics _Graphcis = Graphics.FromImage(_NewBitmap);
	 _Graphcis.DrawImage(m_Bitmap, new Rectangle(0, 0, _NewBitmap.Width, _NewBitmap.Height));
	 _Graphcis.Dispose();

	 BitmapData _Data = _NewBitmap.LockBits(new Rectangle(0, 0, _NewBitmap.Width, _NewBitmap.Height), ImageLockMode.ReadOnly, _NewBitmap.PixelFormat);
	 byte[] _ReadBytes = new byte[_Data.Stride * _Data.Height];
	 Marshal.Copy(_Data.Scan0, _ReadBytes, 0, _ReadBytes.Length);
	 _NewBitmap.UnlockBits(_Data);
	 for (int i = 0; i != _Data.Height; i++)
	 {
	 Array.Copy(_ReadBytes, i * _Data.Stride, _WriteBytes, i * _RowCount, _RowCount);
	 }

	 _NewBitmap.Dispose();
	 return _WriteBytes;
	 }

	 }
	}
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