[C] 取和出一24bit的bmp片

#include <iostream>#include <fstream>#include <windows.h>typedef unsigned char   BYTE;typedef unsigned short  WORD;typedef unsigned long   DWORD;typedef long            LONG;//#define MAXPIX 512using namespace std;struct RGBDATA{        BYTE rgbtRed;  BYTE rgbtGreen;BYTE rgbtBlue;    };void main(){   BITMAPFILEHEADERFileHeader; BITMAPINFOHEADERInfoHeader; RGBTRIPLE color[345][300]; int ImageX, ImageY; BYTE   ByteBuf; int fix; int i, j, n; FILE *fp; FILE *out; char filename[20];  /* 案 */  scanf("%s", filename);  fp = fopen(filename, "rb");  out = fopen("out.bmp", "wb");  /* 先取 */  fread(&FileHeader, sizeof(BITMAPFILEHEADER), 1, fp);  fread(&InfoHeader, sizeof(BITMAPINFOHEADER), 1, fp);  fwrite (&FileHeader , 1 , sizeof(BITMAPFILEHEADER) , out );  fwrite (&InfoHeader , 1 , sizeof(BITMAPINFOHEADER) , out );  /* 定格式 */  if( FileHeader.bfType != 'MB' )     return;  if( InfoHeader.biCompression != 0 )     return;  if( InfoHeader.biBitCount != 24 )     return;  /* 取得及高 */  ImageX = InfoHeader.biWidth;  ImageY = InfoHeader.biHeight;  printf("ImageX:%d\n",ImageX);  printf("ImageY:%d\n",ImageY);  /* 算每列需略的 bytes  */  if( (ImageX*3)%4 != 0)     fix = 4 - ((ImageX*3)%4);  else     fix = 0;  /* 入各像素 */  RGBDATA rgb;  for( i=ImageY-1; i>=0; i-- )  {     for( j=0; j<ImageX; j++ )     {            fread(&rgb, sizeof(RGBTRIPLE), 1, fp);          color[j][i].rgbtBlue = rgb.rgbtBlue;          color[j][i].rgbtGreen = rgb.rgbtGreen;          color[j][i].rgbtRed = rgb.rgbtRed;     }     /* 略各列多的 */ for( n=0; n<fix; n++ ){          fread(&ByteBuf, sizeof(BYTE), 1, fp);  //fwrite(&ByteBuf , 1 , sizeof(ByteBuf) , out); }  }  for( i=ImageY-1; i>=0; i-- )  {     for( j=ImageX-1; j>= 0 ; j-- )     {            rgb.rgbtBlue = color[j][i].rgbtBlue;          rgb.rgbtGreen = color[j][i].rgbtGreen;          rgb.rgbtRed = color[j][i].rgbtRed;  fwrite (&rgb , 1 , sizeof(RGBTRIPLE) , out);     }     /* 略各列多的 */ for( n=0; n<fix; n++ ){   fwrite(&ByteBuf , 1 , sizeof(ByteBuf) , out); }  }fclose(fp);fclose(out);system("pause");}