24位和8位BMP图片保存纯C代码

BMP图片大家都知道，可以通过查看BMP图片结构使用纯C就可以打开，编辑，处理，保存图片。非常方便使用。

具体BMP结构可以参考：wingdi.h头文件。今天主要在进行删减代码，需要把多余的代码删除，之前写的保存bmp代码就此贴在这里留着以后需要的时候使用：

8位BMP图片保存代码：

 BOOL SaveMatrixToGrayBmp(char* sBMPFile, //name of BMP file
             BYTE *pMatrix, // pointer to Matrix Bits array
             int bmpWidth ,
             int bmpHeight // width and height of the bmp
             )
 {
     FILE* fp;
     int bytesofScanLine,i,j;

     DWORD dwFileSize;
     BITMAPFILEHEADER bmfHeader;
     BITMAPINFOHEADER bmiHeader;
     RGBQUAD bmiColors[];
     BYTE tempb=;

     fp = fopen(sBMPFile, "wb");
     bytesofScanLine=(bmpWidth % ==) ? bmpWidth: ((bmpWidth+)/*);
     dwFileSize=sizeof(BITMAPFILEHEADER)+sizeof(BITMAPINFOHEADER)+sizeof(RGBQUAD)*+bytesofScanLine*bmpHeight;

     bmfHeader.bfType=((WORD) ('M' << ) | 'B');
     bmfHeader.bfSize=dwFileSize;
     bmfHeader.bfReserved1=;
     bmfHeader.bfReserved2=;
     bmfHeader.bfOffBits=sizeof(BITMAPFILEHEADER)+sizeof(BITMAPINFOHEADER)+sizeof(RGBQUAD)*;

     fwrite(&bmfHeader,sizeof(bmfHeader), , fp);

     // fill the bmp file Infomation Header.
     bmiHeader.biSize=sizeof(BITMAPINFOHEADER);
     bmiHeader.biWidth=bmpWidth;
     bmiHeader.biHeight=bmpHeight;
     bmiHeader.biPlanes=;
     bmiHeader.biBitCount=;
     bmiHeader.biCompression=BI_RGB;
     bmiHeader.biSizeImage=;
     bmiHeader.biXPelsPerMeter=;
     bmiHeader.biYPelsPerMeter=;
     bmiHeader.biClrUsed=;
     bmiHeader.biClrImportant=;

     fwrite(&bmiHeader,sizeof(bmiHeader), , fp);

     // fill the color tables.
     for (i=; i< ; i++)
      {
         bmiColors[i].rgbBlue=(BYTE)(i);
         bmiColors[i].rgbGreen=(BYTE)(i);
         bmiColors[i].rgbRed=(BYTE)(i);
         bmiColors[i].rgbReserved=;
     }

     fwrite(&(bmiColors[]),sizeof(RGBQUAD)*, , fp);

     // fill the BMP data to file
     for (j=bmpHeight- ; j>= ; j--)
     {
         fwrite((pMatrix+(j*bmpWidth)), , bmpWidth, fp);
         for (i=; i<(bytesofScanLine-bmpWidth) ; i++)
             fwrite(&tempb, , , fp);
     }

     fclose(fp);
     return true;
 }

24位BMP图片保存代码：

 BOOL  SaveRGBMatrixToColorBmp(char* sBMPFile, //name of BMP file
                  BYTE  *pRGBMat, // pointer to DIB bits array
                  int bmpWidth  ,//width of the bmp
                      int bmpHeight //  height of the bmp
                               )
  {
      // create the empty 24bit color BMP file
       FILE* fp;
         fp = fopen(sBMPFile, "wb");
      DWORD dwFileSize;
      BITMAPFILEHEADER bmfHeader;
      BITMAPINFOHEADER bmiHeader;

        int bytesofScanLine,i,j;
      bytesofScanLine=((bmpWidth*) % ==) ? (bmpWidth*): (*int(bmpWidth*/)+) ;
      dwFileSize=sizeof(BITMAPFILEHEADER)+sizeof(BITMAPINFOHEADER)
          +bytesofScanLine*fabs((double)bmpHeight);

      // fill the bmp file Header;
      bmfHeader.bfType=((WORD) ('M' << ) | 'B');
      bmfHeader.bfSize=dwFileSize;
      bmfHeader.bfReserved1=;
      bmfHeader.bfReserved2=;
      bmfHeader.bfOffBits=sizeof(BITMAPFILEHEADER)+sizeof(BITMAPINFOHEADER)
         fwrite(&bmfHeader,sizeof(bmfHeader), , fp);

      // fill the bmp file Infomation Header.
      bmiHeader.biSize=sizeof(BITMAPINFOHEADER);
      bmiHeader.biWidth=bmpWidth;
      bmiHeader.biHeight= fabs((double)bmpHeight);
      bmiHeader.biPlanes=;
      bmiHeader.biBitCount=;
      bmiHeader.biCompression=BI_RGB;
      bmiHeader.biSizeImage=;
      bmiHeader.biXPelsPerMeter=;
      bmiHeader.biYPelsPerMeter=;
      bmiHeader.biClrUsed=;
      bmiHeader.biClrImportant=;
         fwrite(&bmiHeader,sizeof(bmiHeader), , fp);

      // fill the BMP data to file
      BYTE  dummy = ;
      BYTE tempb=;
      for  (j=fabs((double)bmpHeight)-; j>= ; j--)
      {
                fwrite((pRGBMat+j**bmpWidth), bmpWidth*, , fp);
          if (bmpWidth* != bytesofScanLine)
          {
              for  (i = ; i<bytesofScanLine - bmpWidth*; i++)
                               fwrite(&dummy, , , fp);
          }

      }
        fclose(fp);
      return true;
  }

使用例子：

SaveMatrixToGrayBmp("./mid/Gray.bmp", Gray, iWidth, iHeight)

SaveRGBMatrixToColorBmp("./mid/Img.bmp", Img, iWidth, iHeight)