#include?
#include?
#include?
#include?
#include?
#include?

#include?

off_t?get_file_size（const?char?*pathname）
{
	struct?stat?file_stat;
	int?retval;

	retval?=?stat（pathname??&file_stat）;
	if（retval?==?-1）
	{
		perror（“get?file?size?error\n“）;
		return?-1;
	}

	return?file_stat.st_size;
}


int?display_format_bmp（unsigned?int?x_s?unsigned?int?y_s?const?char?*pathname?unsigned?int?*lcd_ptr?unsigned?int?mul）
{
	off_t??file_size;
	FILE?*pic_fp;
	ssize_t?rd_ret;
	char?*pic_buf;
	char?file_head[54];
	unsigned?int?bmp_width?bmp_height;
	unsigned?int?x_end?y_end;
	unsigned?int?x?y;

	char?*draw_ptr;
	unsigned?int?color;


	file_size?=?get_file_size（pathname）;
	if（file_size?==?-1）
		return?-1;

	printf（“file_size=%ld\n“?file_size）;

	pic_buf?=?malloc（file_size-54）;
	if（pic_buf?==?NULL）
	{
		perror（“alloc?pic_buf?memory?error\n“）;
		return?-1;
	}


	pic_fp?=?fopen（pathname?“r“）;
	if（pic_fp?==?NULL）
	{
		perror（“open?picture?error\n“）;
		return?-1;
	}

	rd_ret?=?fread（file_head?54?1?pic_fp）;
	if（ferror（pic_fp））
	{
		perror（“read?picture?head?error\n“）;
		return?-1;
	}

	rd_ret?=?fread（pic_buf?file_size-54?1?pic_fp）;
	if（ferror（pic_fp））
	{
		perror（“read?picture?color?data?error\n“）;
		return?-1;
	}

	fclose（pic_fp）;

	/*?寬度??*/
	bmp_width?=file_head[18];
	bmp_width|=file_head[19]<<8;
	printf（“bmp_width=%d\r\n“bmp_width）;
	
	/*?高度??*/
	bmp_height?=file_head[22];
	bmp_height|=file_head[23]<<8;
	printf（“bmp_height=%d\r\n“bmp_height）;	


	x_end?=?x_s?+?bmp_width/mul;
	y_end?=?y_s?+?bmp_height/mul;


	printf（“x_end=%u?y_end=%u\n“?x_end?y_end）;

	for（y=y_s;?y	{

		draw_ptr?=?pic_buf+（（y-y_s）*mul*bmp_width*3）;
	
		for（?x=x_s;?x		{

			if（x<800）
			{

				color?=?（*draw_ptr）?|?（*（draw_ptr+1）<<8）?|（*（draw_ptr+2）<<16）;
				lcd_draw_point（x?479-y?color?lcd_ptr）;
			}

			draw_ptr?+=?3*mul;
			
		}

	}


	free（pic_buf）;

	return?0;
}