mach.c

source 为程序源代码文件目录 exe 为可执行文件目录 pics 为所有处理好的图片的目录 需要预先安装MinGW MinGW为Mini Gnu for Windows 里面包含gcc

#include <stdio.h>
#include <stdlib.h>
#include <memory.h>
#include "hdr.h"

struct bmphdr *hdr;
unsigned char *bitmap;

int main(int argc, char *argv[])
{
	int i, j, k;
 	FILE *fpnew;
	
	if (argc != 2) {
		printf("Usage: %s <file_to>\n", argv[0]);
		exit(1);
	}
	
	hdr = malloc(sizeof(struct bmphdr));
	
	if (!hdr) exit(1);

	fpnew = fopen(argv[1], "wb+");
	
	if (!fpnew) {
		printf("File create error!\n");
		exit(1);
	}

  bitmap = malloc(768 * 256);
  k = 0;
  
  for (i = 0; i < 256; i++) {
		for (j = 0; j <= 255; j++)
	    bitmap[k++] = (unsigned char)j;
  	for (j = 0; j <= 255; j++)
		  bitmap[k++] = (unsigned char)j;
		for (j = 0; j <= 255; j++)
		  bitmap[k++] = (unsigned char)j;
  }	

	hdr->signature[0]    = 'B';
	hdr->signature[1]    = 'M';
	hdr->offset          = 54;
	hdr->hdr_size        = 40;
	hdr->width           = 768;
	hdr->height          = 256;
	hdr->nr_planes       = 1;
	hdr->bits_per_pixel  = 8;
	hdr->compress_type   = 0;
	hdr->data_size       = 768 * 256;
	hdr->resol_hori      = 2438;
	hdr->resol_vert      = 2438;
	hdr->nr_colors       = 256;
	hdr->important_color = 256;
  
  k = 0;
  for (i = 0; i < 256; i++) {
    hdr->info[k++] = (unsigned char)i;
    hdr->info[k++] = (unsigned char)i;
    hdr->info[k++] = (unsigned char)i;
    hdr->info[k++] = (unsigned char)0; 
  }
  	
	fwrite(hdr->signature, 2, 1, fpnew);
	fwrite(&hdr->size, 4, 1, fpnew);
	fwrite(hdr->reserved, 4, 1, fpnew);
	fwrite(&hdr->offset, 4, 1, fpnew);
	fwrite(&hdr->hdr_size, 4, 1, fpnew);
	fwrite(&hdr->width, 4, 1, fpnew);
	fwrite(&hdr->height, 4, 1, fpnew);
	fwrite(&hdr->nr_planes, 2, 1, fpnew);
	fwrite(&hdr->bits_per_pixel, 2, 1, fpnew);
	fwrite(&hdr->compress_type, 4, 1, fpnew);
	fwrite(&hdr->data_size, 4, 1, fpnew);
	fwrite(&hdr->resol_hori, 4, 1, fpnew);
	fwrite(&hdr->resol_vert, 4, 1, fpnew);
	fwrite(&hdr->nr_colors, 4, 1, fpnew);
	fwrite(&hdr->important_color, 4, 1, fpnew);
	fwrite(hdr->info, 1024, 1, fpnew);
  fwrite(bitmap, 768 * 256, 1, fpnew);
  
  fclose(fpnew);
	free(hdr);
  free(bitmap);
  
	return 0;
}