/*
?*?qrencode?-?QR?Code?encoder
?*
?*?Binary?sequence?class.
?*?Copyright?（C）?2006-2011?Kentaro?Fukuchi?
?*
?*?This?library?is?free?software;?you?can?redistribute?it?and/or
?*?modify?it?under?the?terms?of?the?GNU?Lesser?General?Public
?*?License?as?published?by?the?Free?Software?Foundation;?either
?*?version?2.1?of?the?License?or?any?later?version.
?*
?*?This?library?is?distributed?in?the?hope?that?it?will?be?useful
?*?but?WITHOUT?ANY?WARRANTY;?without?even?the?implied?warranty?of
?*?MERCHANTABILITY?or?FITNESS?FOR?A?PARTICULAR?PURPOSE.?See?the?GNU
?*?Lesser?General?Public?License?for?more?details.
?*
?*?You?should?have?received?a?copy?of?the?GNU?Lesser?General?Public
?*?License?along?with?this?library;?if?not?write?to?the?Free?Software
?*?Foundation?Inc.?51?Franklin?St?Fifth?Floor?Boston?MA?02110-1301?USA
?*/

#if?HAVE_CONFIG_H
#?include?“config.h“
#endif
#include?
#include?
#include?

#include?“bitstream.h“

BitStream?*BitStream_new（void）
{
	BitStream?*bstream;

	bstream?=?（BitStream?*）malloc（sizeof（BitStream））;
	if（bstream?==?NULL）?return?NULL;

	bstream->length?=?0;
	bstream->data?=?NULL;

	return?bstream;
}

static?int?BitStream_allocate（BitStream?*bstream?int?length）
{
	unsigned?char?*data;

	if（bstream?==?NULL）?{
		return?-1;
	}

	data?=?（unsigned?char?*）malloc（length）;
	if（data?==?NULL）?{
		return?-1;
	}

	if（bstream->data）?{
		free（bstream->data）;
	}
	bstream->length?=?length;
	bstream->data?=?data;

	return?0;
}

static?BitStream?*BitStream_newFromNum（int?bits?unsigned?int?num）
{
	unsigned?int?mask;
	int?i;
	unsigned?char?*p;
	BitStream?*bstream;

	bstream?=?BitStream_new（）;
	if（bstream?==?NULL）?return?NULL;

	if（BitStream_allocate（bstream?bits））?{
		BitStream_free（bstream）;
		return?NULL;
	}

	p?=?bstream->data;
	mask?=?1?<	for（i=0;?i		if（num?&?mask）?{
			*p?=?1;
		}?else?{
			*p?=?0;
		}
		p++;
		mask?=?mask?>>?1;
	}

	return?bstream;
}

static?BitStream?*BitStream_newFromBytes（int?size?unsigned?char?*data）
{
	unsigned?char?mask;
	int?i?j;
	unsigned?char?*p;
	BitStream?*bstream;

	bstream?=?BitStream_new（）;
	if（bstream?==?NULL）?return?NULL;

	if（BitStream_allocate（bstream?size?*?8））?{
		BitStream_free（bstream）;
		return?NULL;
	}

	p?=?bstream->data;
	for（i=0;?i		mask?=?0x80;
		for（j=0;?j<8;?j++）?{
			if（data[i]?&?mask）?{
				*p?=?1;
			}?else?{
				*p?=?0;
			}
			p++;
			mask?=?mask?>>?1;
		}
	}

	return?bstream;
}

int?BitStream_append（BitStream?*bstream?BitStream?*arg）
{
	unsigned?char?*data;

	if（arg?==?NULL）?{
		return?-1;
	}
	if（arg->length?==?0）?{
		return?0;
	}
	if（bstream->length?==?0）?{
		if（BitStream_allocate（bstream?arg->length））?{
			return?-1;
		}
		memcpy（bstream->data?arg->data?arg->length）;
		return?0;
	}

	data?=?（unsigned?char?*）malloc（bstream->length?+?arg->length）;
	if（data?==?NULL）?{
		return?-1;
	}
	memcpy（data?bstream->data?bstream->length）;
	memcpy（data?+?bstream->length?arg->data?arg->length）;

	f

?屬性????????????大小?????日期????時(shí)間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2017-12-11?18:05??QRCODE\
?????文件????????2445??2017-12-12?09:59??QRCODE\1.readme.txt
?????文件????????4310??2014-07-24?20:17??QRCODE\bitstream.c
?????文件????????1432??2014-07-24?20:17??QRCODE\bitstream.h
?????文件?????????236??2017-12-11?16:28??QRCODE\data_type.h
?????文件????????7274??2015-08-10?13:32??QRCODE\mask.c
?????文件????????1560??2014-07-04?08:43??QRCODE\mask.h
?????文件????????4276??2015-08-10?13:32??QRCODE\mmask.c
?????文件????????1404??2014-07-04?08:43??QRCODE\mmask.h
?????文件????????7476??2015-08-20?11:46??QRCODE\mqrspec.c
?????文件????????4774??2014-07-04?08:43??QRCODE\mqrspec.h
?????文件???????21241??2015-08-22?09:54??QRCODE\qrencode.c
?????文件???????21602??2015-08-20?09:58??QRCODE\qrencode.h
?????文件???????40683??2015-08-20?11:53??QRCODE\qrinput.c
?????文件????????3811??2015-08-20?09:32??QRCODE\qrinput.h
?????文件???????16277??2015-08-21?09:46??QRCODE\qrspec.c
?????文件????????5832??2014-07-24?20:17??QRCODE\qrspec.h
?????文件???????60262??2017-12-11?16:21??QRCODE\QR_Encode.c
?????文件????????3783??2017-12-11?18:05??QRCODE\QR_Encode.h
?????文件????????9508??2015-08-11?12:18??QRCODE\rscode.c
?????文件????????1468??2014-07-24?20:17??QRCODE\rscode.h
?????文件????????8539??2015-08-20?11:08??QRCODE\split.c
?????文件????????1913??2014-07-24?20:17??QRCODE\split.h