Subversion Repositories djpeg

//////////////////////////////////////////////////////////////////////////////

#include <stdio.h>

#include <stdlib.h>

typedef unsigned short WORD;

typedef unsigned long DWORD;

typedef long LONG;

typedef struct tagBITMAPINFOHEADER{

  DWORD  biSize;

  LONG   biWidth;

  LONG   biHeight;

  WORD   biPlanes;

  WORD   biBitCount;

  DWORD  biCompression;

  DWORD  biSizeImage;

  LONG   biXPelsPerMeter;

  LONG   biYPelsPerMeter;

  DWORD  biClrUsed;

  DWORD  biClrImportant;

} BITMAPINFOHEADER, *PBITMAPINFOHEADER;

//////////////////////////////////////////////////////////////////////////////

// メイン関数

//////////////////////////////////////////////////////////////////////////////

int main(int argc, char *argv[])

{

  unsigned char buff[4];

  char data[256];

  FILE *rfp,*wfp;

  unsigned long width;

  unsigned long height;

  unsigned long bitdata;

  unsigned char tbuff[4];

  BITMAPINFOHEADER lpBi;

  unsigned char *image;

  unsigned int i;

  if((rfp = fopen(argv[1],"rb")) == NULL){

    perror(0);

    exit(0);

  }

  if((wfp = fopen(argv[2],"wb")) == NULL){

    perror(0);

    exit(0);

  }

  fgets(data,256,rfp);

  width = (unsigned int)strtol(data,NULL,10);

  fgets(data,256,rfp);

  height = (unsigned int)strtol(data,NULL,10);

  image = (unsigned char *)malloc(height*width*3);

  // ファイルヘッダの設定

  tbuff[0] = 'B';

  tbuff[1] = 'M';

  fwrite(tbuff,2,1,wfp);

  tbuff[3] = ((14 +40 +width * height * 3) >> 24) & 0xff;

  tbuff[2] = ((14 +40 +width * height * 3) >> 16) & 0xff;

  tbuff[1] = ((14 +40 +width * height * 3) >>  8) & 0xff;

  tbuff[0] = ((14 +40 +width * height * 3) >>  0) & 0xff;

  fwrite(tbuff,4,1,wfp);

  tbuff[1] = 0;

  tbuff[0] = 0;

  fwrite(tbuff,2,1,wfp);

  fwrite(tbuff,2,1,wfp);

  tbuff[3] = 0;

  tbuff[2] = 0;

  tbuff[1] = 0;

  tbuff[0] = 54;

  fwrite(tbuff,4,1,wfp);

  // インフォメーションの設定

  lpBi.biSize            = 40;

  lpBi.biWidth           = width;

  lpBi.biHeight          = height;

  lpBi.biPlanes          = 1;

  lpBi.biBitCount        = 3*8;

  lpBi.biCompression     = 0;

  lpBi.biSizeImage       = width*height*3;

  lpBi.biXPelsPerMeter   = 300;

  lpBi.biYPelsPerMeter   = 300;

  lpBi.biClrUsed         = 0;

  lpBi.biClrImportant    = 0;

  fwrite(&lpBi,1,40,wfp);

  i = 0;

  while(!feof(rfp)){

    if(i>=width*height) break;

    fgets(data,256,rfp);

    bitdata=strtol(data,NULL,16);

    image[((height-i/width-1)*width*3)+(i%width)*3+0] = (bitdata >>  0) & 0xff;

    image[((height-i/width-1)*width*3)+(i%width)*3+1] = (bitdata >>  8) & 0xff;

    image[((height-i/width-1)*width*3)+(i%width)*3+2] = (bitdata >> 16) & 0xff;

    i++;

  }

  fwrite(image,1,width*height*3,wfp);

  fclose(rfp);

  fclose(wfp);

  free(image);

  return 0;

}