bmpdataproc.cpp

BMP文件提取有效数据

// BmpDataProc.cpp : Defines the entry point for the console application.
//

#include "stdafx.h"
#include "stdio.h"

int main(int argc, char* argv[])
{
	int i,j;
	int width=0;
	int height=0;
	int tmp;
	char c;
	FILE *Sp,*Dp;

	if(argc != 3)
	{
		printf("CMD > BmpDataProc SourceFile DesFile!\n");
		return 0;
	}

	Sp = fopen(argv[1], "rb");
	if(Sp == NULL)
	{
		printf("Open Source File Failed!\n");
		return 0;
	}

	Dp = fopen(argv[2], "w");
	if(Dp == NULL)
	{
		printf("Open Des File Failed!\n");
		fclose(Sp);
		return 0;
	}

	fseek(Sp,0x12,0);
	for(i=0;i<4;i++)
	{
		tmp = fgetc(Sp);
		width |= (tmp&0xFF)<<(i*8);
	}
	printf("Width:%d\n",width);

	for(i=0;i<4;i++)
	{
		tmp = fgetc(Sp);
		height |= (tmp&0xFF)<<(i*8);
	}
	printf("Height:%d\n",height);

	for(i=1;i<=height;i++)
	{
		fseek(Sp,-width*i,2);
		for(j=0;j<width;j++)
		{
			c = fgetc(Sp);

			if(c == 0x80)
				c = 0;
			else
				c += 0x80;
			fprintf(Dp,"0x%02X,",c&0xff);

			if(((i-1)*width+j+1)%16 == 0)
				fprintf(Dp,"\n");
		}
		//fprintf(Dp,"\n");
	}


	fclose(Sp);
	fclose(Dp);
	return 0;
}