#include?
#include?
#include?“xixi.h“
//#include?“stdafx.h“
char?*FileName?=?“image.jpg“;
extern?char?error_string[90];





typedef?struct?s_BM_header?{
	WORD?BMP_id;?//?‘B‘‘M‘
	DWORD?size;?//?size?in?bytes?of?the?BMP?file
	DWORD?zero_res;?//?0
	DWORD?offbits;?//?54
	DWORD?biSize;?//?0x28
	DWORD?Width;??//?X
	DWORD?Height;??//?Y
	WORD??biPlanes;?//?1
	WORD??biBitCount;?//?24
	DWORD?biCompression;?//?0?=?BI_RGB
	DWORD?biSizeImage;?//?0
	DWORD?biXPelsPerMeter;?//?0xB40
	DWORD?biYPelsPerMeter;?//?0xB40
	DWORD?biClrUsed;?//0
	DWORD?biClrImportant;?//0
}?BM_header;
typedef?struct?s_RGB?{
	BYTE?B;
	BYTE?G;
	BYTE?R;
}?RGB;

void?exitmessage（char?*message）
{
	printf（“%s\n“?message）;?exit（0）;
}

void?write_buf_to_BMP（BYTE?*im_buffer?WORD?X_bitmap?WORD?Y_bitmap?char?*BMPname）
{
	SWORD?x?y;
	RGB?*pixel;
	BM_header?BH;
	FILE?*fp_bitmap;
	DWORD?im_loc_bytes;
	BYTE?nr_fillingbytes?i;
	BYTE?zero_byte?=?0;

	fopen_s（&fp_bitmap?BMPname?“wb“）;
	if?（fp_bitmap?==?NULL）?exitmessage（“File?cannot?be?created“）;

	if?（X_bitmap?%?4?!=?0）?nr_fillingbytes?=?4?-?（（X_bitmap?*?3L）?%?4）;
	else?nr_fillingbytes?=?0;

	BH.BMP_id?=?‘M‘?*?256?+?‘B‘;?????fwrite（&BH.BMP_id?2?1?fp_bitmap）;
	BH.size?=?54?+?Y_bitmap*（X_bitmap?*?3?+?nr_fillingbytes）;?fwrite（&BH.size?4?1?fp_bitmap）;
	BH.zero_res?=?0;?????????????fwrite（&BH.zero_res?4?1?fp_bitmap）;
	BH.offbits?=?54;?????????????fwrite（&BH.offbits?4?1?fp_bitmap）;
	BH.biSize?=?0x28;????????????fwrite（&BH.biSize?4?1?fp_bitmap）;
	BH.Width?=?X_bitmap;	??????fwrite（&BH.Width?4?1?fp_bitmap）;
	BH.Height?=?Y_bitmap;	??????fwrite（&BH.Height?4?1?fp_bitmap）;
	BH.biPlanes?=?1;?????????????fwrite（&BH.biPlanes?2?1?fp_bitmap）;
	BH.biBitCount?=?24;??????????fwrite（&BH.biBitCount?2?1?fp_bitmap）;
	BH.biCompression?=?0;????????fwrite（&BH.biCompression?4?1?fp_bitmap）;
	BH.biSizeImage?=?0;??????????fwrite（&BH.biSizeImage?4?1?fp_bitmap）;
	BH.biXPelsPerMeter?=?0xB40;??fwrite（&BH.biXPelsPerMeter?4?1?fp_bitmap）;
	BH.biYPelsPerMeter?=?0xB40;??fwrite（&BH.biYPelsPerMeter?4?1?fp_bitmap）;
	BH.biClrUsed?=?0;	??????????fwrite（&BH.biClrUsed?4?1?fp_bitmap）;
	BH.biClrImportant?=?0;	??????fwrite（&BH.biClrImportant?4?1?fp_bitmap）;

	printf（“Writing?bitmap?...\n“）;
	im_loc_bytes?=?（DWORD）im_buffer?+?（（DWORD）Y_bitmap?-?1）*X_bitmap?*?4;

	for?（y?=?0;?y	{
		for?（x?=?0;?x		{
			pixel?=?（RGB?*）im_loc_bytes;
			fwrite（pixel?3?1?fp_bitmap）;
			im_loc_bytes?+=?4;
		}
		for?（i?=?0;?i			fwrite（&zero_byte?1?1?fp_bitmap）;
		im_loc_bytes?-=?2L?*?X_bitmap?*?4;
	}
	printf（“Done.\n“）;
	fclose（fp_bitmap）;
}



//?Used?markers:
#define?SOI?0xD8
#define?EOI?0xD9
#define?APP0?0xE0
#define?SOF?0xC0
#define?DQT?0xDB
#define?DHT?0xC4
#define?SOS?0xDA
#define?DRI?0xDD
#define?COM?0xFE

char?error_string[90];
//char?err[90];
void?exit_func（char?*err）?{
	strcpy（error

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2018-04-03?16:49??C語言JPG轉BMP\
?????文件???????33036??2018-04-03?16:40??C語言JPG轉BMP\xixi.c
?????文件?????????490??2018-04-03?16:03??C語言JPG轉BMP\xixi.h