cyf
272 lines
10 KiB
C#
272 lines
10 KiB
C#
using System;
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using System.Collections.Generic;
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using System.IO;
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using System.Linq;
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using System.Runtime.InteropServices;
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using System.Text;
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namespace Lskj.Control.ZKFinger
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{
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public class BitmapFormat
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{
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public struct BITMAPFILEHEADER
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{
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public ushort bfType;
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public int bfSize;
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public ushort bfReserved1;
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public ushort bfReserved2;
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public int bfOffBits;
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}
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public struct MASK
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{
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public byte redmask;
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public byte greenmask;
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public byte bluemask;
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public byte rgbReserved;
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}
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public struct BITMAPINFOHEADER
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{
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public int biSize;
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public int biWidth;
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public int biHeight;
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public ushort biPlanes;
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public ushort biBitCount;
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public int biCompression;
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public int biSizeImage;
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public int biXPelsPerMeter;
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public int biYPelsPerMeter;
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public int biClrUsed;
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public int biClrImportant;
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}
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/*******************************************
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* 函数名称：RotatePic
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* 函数功能：旋转图片，目的是保存和显示的图片与按的指纹方向不同
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* 函数入参：BmpBuf---旋转前的指纹字符串
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* 函数出参：ResBuf---旋转后的指纹字符串
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* 函数返回：无
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*********************************************/
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public static void RotatePic(byte[] BmpBuf, int width, int height, ref byte[] ResBuf)
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{
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int RowLoop = 0;
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int ColLoop = 0;
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int BmpBuflen = width * height;
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try
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{
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for (RowLoop = 0; RowLoop < BmpBuflen;)
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{
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for (ColLoop = 0; ColLoop < width; ColLoop++)
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{
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ResBuf[RowLoop + ColLoop] = BmpBuf[BmpBuflen - RowLoop - width + ColLoop];
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}
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RowLoop = RowLoop + width;
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}
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}
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catch (Exception ex)
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{
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//ZKCE.SysException.ZKCELogger logger = new ZKCE.SysException.ZKCELogger(ex);
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//logger.Append();
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}
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}
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/*******************************************
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* 函数名称：StructToBytes
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* 函数功能：将结构体转化成无符号字符串数组
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* 函数入参：StructObj---被转化的结构体
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* Size---被转化的结构体的大小
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* 函数出参：无
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* 函数返回：结构体转化后的数组
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*********************************************/
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public static byte[] StructToBytes(object StructObj, int Size)
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{
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int StructSize = Marshal.SizeOf(StructObj);
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byte[] GetBytes = new byte[StructSize];
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try
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{
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IntPtr StructPtr = Marshal.AllocHGlobal(StructSize);
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Marshal.StructureToPtr(StructObj, StructPtr, false);
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Marshal.Copy(StructPtr, GetBytes, 0, StructSize);
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Marshal.FreeHGlobal(StructPtr);
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if (Size == 14)
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{
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byte[] NewBytes = new byte[Size];
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int Count = 0;
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int Loop = 0;
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for (Loop = 0; Loop < StructSize; Loop++)
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{
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if (Loop != 2 && Loop != 3)
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{
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NewBytes[Count] = GetBytes[Loop];
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Count++;
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}
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}
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return NewBytes;
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}
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else
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{
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return GetBytes;
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}
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}
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catch (Exception ex)
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{
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//ZKCE.SysException.ZKCELogger logger = new ZKCE.SysException.ZKCELogger(ex);
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//logger.Append();
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return GetBytes;
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}
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}
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/*******************************************
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* 函数名称：GetBitmap
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* 函数功能：将传进来的数据保存为图片
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* 函数入参：buffer---图片数据
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* nWidth---图片的宽度
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* nHeight---图片的高度
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* 函数出参：无
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* 函数返回：无
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*********************************************/
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public static void GetBitmap(byte[] buffer, int nWidth, int nHeight, ref MemoryStream ms)
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{
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int ColorIndex = 0;
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ushort m_nBitCount = 8;
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int m_nColorTableEntries = 256;
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byte[] ResBuf = new byte[nWidth * nHeight];
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try
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{
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BITMAPFILEHEADER BmpHeader = new BITMAPFILEHEADER();
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BITMAPINFOHEADER BmpInfoHeader = new BITMAPINFOHEADER();
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MASK[] ColorMask = new MASK[m_nColorTableEntries];
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//图片头信息
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BmpInfoHeader.biSize = Marshal.SizeOf(BmpInfoHeader);
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BmpInfoHeader.biWidth = nWidth;
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BmpInfoHeader.biHeight = nHeight;
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BmpInfoHeader.biPlanes = 1;
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BmpInfoHeader.biBitCount = m_nBitCount;
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BmpInfoHeader.biCompression = 0;
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BmpInfoHeader.biSizeImage = 0;
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BmpInfoHeader.biXPelsPerMeter = 0;
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BmpInfoHeader.biYPelsPerMeter = 0;
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BmpInfoHeader.biClrUsed = m_nColorTableEntries;
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BmpInfoHeader.biClrImportant = m_nColorTableEntries;
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//文件头信息
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BmpHeader.bfType = 0x4D42;
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BmpHeader.bfOffBits = 14 + Marshal.SizeOf(BmpInfoHeader) + BmpInfoHeader.biClrUsed * 4;
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BmpHeader.bfSize = BmpHeader.bfOffBits + ((((BmpInfoHeader.biWidth * BmpInfoHeader.biBitCount + 31) / 32) * 4) * BmpInfoHeader.biHeight);
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BmpHeader.bfReserved1 = 0;
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BmpHeader.bfReserved2 = 0;
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ms.Write(StructToBytes(BmpHeader, 14), 0, 14);
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ms.Write(StructToBytes(BmpInfoHeader, Marshal.SizeOf(BmpInfoHeader)), 0, Marshal.SizeOf(BmpInfoHeader));
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//调试板信息
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for (ColorIndex = 0; ColorIndex < m_nColorTableEntries; ColorIndex++)
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{
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ColorMask[ColorIndex].redmask = (byte)ColorIndex;
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ColorMask[ColorIndex].greenmask = (byte)ColorIndex;
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ColorMask[ColorIndex].bluemask = (byte)ColorIndex;
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ColorMask[ColorIndex].rgbReserved = 0;
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ms.Write(StructToBytes(ColorMask[ColorIndex], Marshal.SizeOf(ColorMask[ColorIndex])), 0, Marshal.SizeOf(ColorMask[ColorIndex]));
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}
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//图片旋转，解决指纹图片倒立的问题
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RotatePic(buffer, nWidth, nHeight, ref ResBuf);
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ms.Write(ResBuf, 0, nWidth * nHeight);
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}
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catch (Exception ex)
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{
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// ZKCE.SysException.ZKCELogger logger = new ZKCE.SysException.ZKCELogger(ex);
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// logger.Append();
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}
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}
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/*******************************************
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* 函数名称：WriteBitmap
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* 函数功能：将传进来的数据保存为图片
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* 函数入参：buffer---图片数据
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* nWidth---图片的宽度
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* nHeight---图片的高度
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* 函数出参：无
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* 函数返回：无
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*********************************************/
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public static void WriteBitmap(byte[] buffer, int nWidth, int nHeight)
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{
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int ColorIndex = 0;
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ushort m_nBitCount = 8;
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int m_nColorTableEntries = 256;
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byte[] ResBuf = new byte[nWidth * nHeight];
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try
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{
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BITMAPFILEHEADER BmpHeader = new BITMAPFILEHEADER();
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BITMAPINFOHEADER BmpInfoHeader = new BITMAPINFOHEADER();
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MASK[] ColorMask = new MASK[m_nColorTableEntries];
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//图片头信息
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BmpInfoHeader.biSize = Marshal.SizeOf(BmpInfoHeader);
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BmpInfoHeader.biWidth = nWidth;
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BmpInfoHeader.biHeight = nHeight;
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BmpInfoHeader.biPlanes = 1;
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BmpInfoHeader.biBitCount = m_nBitCount;
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BmpInfoHeader.biCompression = 0;
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BmpInfoHeader.biSizeImage = 0;
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BmpInfoHeader.biXPelsPerMeter = 0;
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BmpInfoHeader.biYPelsPerMeter = 0;
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BmpInfoHeader.biClrUsed = m_nColorTableEntries;
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BmpInfoHeader.biClrImportant = m_nColorTableEntries;
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//文件头信息
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BmpHeader.bfType = 0x4D42;
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BmpHeader.bfOffBits = 14 + Marshal.SizeOf(BmpInfoHeader) + BmpInfoHeader.biClrUsed * 4;
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BmpHeader.bfSize = BmpHeader.bfOffBits + ((((BmpInfoHeader.biWidth * BmpInfoHeader.biBitCount + 31) / 32) * 4) * BmpInfoHeader.biHeight);
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BmpHeader.bfReserved1 = 0;
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BmpHeader.bfReserved2 = 0;
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Stream FileStream = File.Open("finger.bmp", FileMode.Create, FileAccess.Write);
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BinaryWriter TmpBinaryWriter = new BinaryWriter(FileStream);
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TmpBinaryWriter.Write(StructToBytes(BmpHeader, 14));
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TmpBinaryWriter.Write(StructToBytes(BmpInfoHeader, Marshal.SizeOf(BmpInfoHeader)));
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//调试板信息
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for (ColorIndex = 0; ColorIndex < m_nColorTableEntries; ColorIndex++)
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{
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ColorMask[ColorIndex].redmask = (byte)ColorIndex;
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ColorMask[ColorIndex].greenmask = (byte)ColorIndex;
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ColorMask[ColorIndex].bluemask = (byte)ColorIndex;
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ColorMask[ColorIndex].rgbReserved = 0;
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TmpBinaryWriter.Write(StructToBytes(ColorMask[ColorIndex], Marshal.SizeOf(ColorMask[ColorIndex])));
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}
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//图片旋转，解决指纹图片倒立的问题
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RotatePic(buffer, nWidth, nHeight, ref ResBuf);
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//写图片
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TmpBinaryWriter.Write(ResBuf);
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FileStream.Close();
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TmpBinaryWriter.Close();
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}
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catch (Exception ex)
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{
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//ZKCE.SysException.ZKCELogger logger = new ZKCE.SysException.ZKCELogger(ex);
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//logger.Append();
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}
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}
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}
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}
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