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