tif_fax3.c File Reference

#include "tiffiop.h"
#include "tif_fax3.h"
#include "t4.h"
#include <stdio.h>

Go to the source code of this file.

Macros
#define	G3CODES
#define	Fax3State(tif)   ((Fax3BaseState*) (tif)->tif_data)
#define	DecoderState(tif)   ((Fax3CodecState*) Fax3State(tif))
#define	EncoderState(tif)   ((Fax3CodecState*) Fax3State(tif))
#define	is2DEncoding(sp)   (sp->b.groupoptions & GROUP3OPT_2DENCODING)
#define	isAligned(p, t)   ((((unsigned long)(p)) & (sizeof (t)-1)) == 0)
#define	DECLARE_STATE(tif, sp, mod)
#define	DECLARE_STATE_2D(tif, sp, mod)
#define	CACHE_STATE(tif, sp)
#define	UNCACHE_STATE(tif, sp)
#define	unexpected(table, a0)   Fax3Unexpected(module, tif, line, a0)
#define	extension(a0)   Fax3Extension(module, tif, line, a0)
#define	badlength(a0, lastx)   Fax3BadLength(module, tif, line, a0, lastx)
#define	prematureEOF(a0)   Fax3PrematureEOF(module, tif, line, a0)
#define	Nop
#define	SWAP(t, a, b)   { t x; x = (a); (a) = (b); (b) = x; }
#define	FILL(n, cp)
#define	ZERO(n, cp)
#define	Fax3FlushBits(tif, sp)
#define	_FlushBits(tif)
#define	_PutBits(tif, bits, length)
#define	putcode(tif, te)   Fax3PutBits(tif, (te)->code, (te)->length)
#define	finddiff(_cp, _bs, _be, _color)   (_bs + (_color ? find1span(_cp,_bs,_be) : find0span(_cp,_bs,_be)))
#define	finddiff2(_cp, _bs, _be, _color)   (_bs < _be ? finddiff(_cp,_bs,_be,_color) : _be)
#define	PIXEL(buf, ix)   ((((buf)[(ix)>>3]) >> (7-((ix)&7))) & 1)
#define	FIELD_BADFAXLINES   (FIELD_CODEC+0)
#define	FIELD_CLEANFAXDATA   (FIELD_CODEC+1)
#define	FIELD_BADFAXRUN   (FIELD_CODEC+2)
#define	FIELD_RECVPARAMS   (FIELD_CODEC+3)
#define	FIELD_SUBADDRESS   (FIELD_CODEC+4)
#define	FIELD_RECVTIME   (FIELD_CODEC+5)
#define	FIELD_FAXDCS   (FIELD_CODEC+6)
#define	FIELD_OPTIONS   (FIELD_CODEC+7)
#define	N(a)   (sizeof (a) / sizeof (a[0]))
#define	SWAP(t, a, b)   { t x; x = (a); (a) = (b); (b) = x; }

Enumerations
enum	Ttag { G3_1D, G3_2D }

Functions
void	_TIFFFax3fillruns (unsigned char *buf, uint32 *runs, uint32 *erun, uint32 lastx)
int	TIFFInitCCITTFax3 (TIFF *tif, int scheme)
int	TIFFInitCCITTFax4 (TIFF *tif, int scheme)
int	TIFFInitCCITTRLE (TIFF *tif, int scheme)
int	TIFFInitCCITTRLEW (TIFF *tif, int scheme)

Macro Definition Documentation

_FlushBits

#define _FlushBits

(

tif

)

Value:

{                   \
    if ((tif)->tif_rawcc >= (tif)->tif_rawdatasize)     \
        (void) TIFFFlushData1(tif);         \
    *(tif)->tif_rawcp++ = (tidataval_t) data;       \
    (tif)->tif_rawcc++;                 \
    data = 0, bit = 8;                  \
}

Definition at line 545 of file tif_fax3.c.

_PutBits

#define _PutBits	(		tif,
			bits,
			length
	)

Value:

{               \
    while (length > bit) {                  \
        data |= bits >> (length - bit);         \
        length -= bit;                  \
        _FlushBits(tif);                \
    }                           \
    data |= (bits & _msbmask[length]) << (bit - length);    \
    bit -= length;                      \
    if (bit == 0)                       \
        _FlushBits(tif);                \
}

Definition at line 554 of file tif_fax3.c.

badlength

#define badlength	(		a0,
			lastx
	)		Fax3BadLength(module, tif, line, a0, lastx)

Definition at line 210 of file tif_fax3.c.

CACHE_STATE

#define CACHE_STATE	(		tif,
			sp
	)

Value:

do {                    \
    BitAcc = sp->data;                          \
    BitsAvail = sp->bit;                        \
    EOLcnt = sp->EOLcnt;                        \
    cp = (unsigned char*) tif->tif_rawcp;               \
    ep = cp + tif->tif_rawcc;                       \
} while (0)

Definition at line 126 of file tif_fax3.c.

DECLARE_STATE

#define DECLARE_STATE	(		tif,
			sp,
			mod
	)

Value:

static const char module[] = mod;                   \
    Fax3CodecState* sp = DecoderState(tif);             \
    int a0;             /* reference element */     \
    int lastx = sp->b.rowpixels;    /* last element in row */   \
    uint32 BitAcc;          /* bit accumulator */       \
    int BitsAvail;          /* # valid bits in BitAcc */    \
    int RunLength;          /* length of current run */ \
    unsigned char* cp;          /* next byte of input data */   \
    unsigned char* ep;          /* end of input data */     \
    uint32* pa;             /* place to stuff next run */   \
    uint32* thisrun;            /* current row's run array */   \
    int EOLcnt;             /* # EOL codes recognized */    \
    const unsigned char* bitmap = sp->bitmap;   /* input data bit reverser */   \
    const TIFFFaxTabEnt* TabEnt

Definition at line 104 of file tif_fax3.c.

DECLARE_STATE_2D

#define DECLARE_STATE_2D	(		tif,
			sp,
			mod
	)

Value:

DECLARE_STATE(tif, sp, mod);                    \
    int b1;             /* next change on prev line */  \
    uint32* pb              /* next run in reference line */\
/*
 * Load any state that may be changed during decoding.
 */

Definition at line 119 of file tif_fax3.c.

DecoderState

#define DecoderState

(

tif

)

((Fax3CodecState*) Fax3State(tif))

Definition at line 89 of file tif_fax3.c.

EncoderState

#define EncoderState

(

tif

)

((Fax3CodecState*) Fax3State(tif))

Definition at line 90 of file tif_fax3.c.

extension

#define extension

(

a0

)

Fax3Extension(module, tif, line, a0)

Definition at line 198 of file tif_fax3.c.

Fax3FlushBits

#define Fax3FlushBits	(		tif,
			sp
	)

Value:

{               \
    if ((tif)->tif_rawcc >= (tif)->tif_rawdatasize)     \
        (void) TIFFFlushData1(tif);         \
    *(tif)->tif_rawcp++ = (tidataval_t) (sp)->data;     \
    (tif)->tif_rawcc++;                 \
    (sp)->data = 0, (sp)->bit = 8;              \
}

Definition at line 538 of file tif_fax3.c.

Fax3State

#define Fax3State

(

tif

)

((Fax3BaseState*) (tif)->tif_data)

Definition at line 67 of file tif_fax3.c.

FIELD_BADFAXLINES

#define FIELD_BADFAXLINES   (FIELD_CODEC+0)

Definition at line 1091 of file tif_fax3.c.

FIELD_BADFAXRUN

#define FIELD_BADFAXRUN   (FIELD_CODEC+2)

Definition at line 1093 of file tif_fax3.c.

FIELD_CLEANFAXDATA

#define FIELD_CLEANFAXDATA   (FIELD_CODEC+1)

Definition at line 1092 of file tif_fax3.c.

FIELD_FAXDCS

#define FIELD_FAXDCS   (FIELD_CODEC+6)

Definition at line 1097 of file tif_fax3.c.

FIELD_OPTIONS

#define FIELD_OPTIONS   (FIELD_CODEC+7)

Definition at line 1099 of file tif_fax3.c.

FIELD_RECVPARAMS

#define FIELD_RECVPARAMS   (FIELD_CODEC+3)

Definition at line 1094 of file tif_fax3.c.

FIELD_RECVTIME

#define FIELD_RECVTIME   (FIELD_CODEC+5)

Definition at line 1096 of file tif_fax3.c.

FIELD_SUBADDRESS

#define FIELD_SUBADDRESS   (FIELD_CODEC+4)

Definition at line 1095 of file tif_fax3.c.

FILL

#define FILL	(		n,
			cp
	)

Value:

switch (n) {                                \
    case 7: (cp)[6] = 0xff; case 6: (cp)[5] = 0xff; case 5: (cp)[4] = 0xff; \
    case 4: (cp)[3] = 0xff; case 3: (cp)[2] = 0xff; case 2: (cp)[1] = 0xff; \
    case 1: (cp)[0] = 0xff; (cp) += (n); case 0:  ;             \
    }

Definition at line 345 of file tif_fax3.c.

Referenced by _TIFFFax3fillruns().

finddiff

#define finddiff	(		_cp,
			_bs,
			_be,
			_color
	)		(_bs + (_color ? find1span(_cp,_bs,_be) : find0span(_cp,_bs,_be)))

Definition at line 900 of file tif_fax3.c.

finddiff2

#define finddiff2	(		_cp,
			_bs,
			_be,
			_color
	)		(_bs < _be ? finddiff(_cp,_bs,_be,_color) : _be)

Definition at line 906 of file tif_fax3.c.

G3CODES

#define G3CODES

Definition at line 42 of file tif_fax3.c.

is2DEncoding

#define is2DEncoding

(

sp

)

(sp->b.groupoptions & GROUP3OPT_2DENCODING)

Definition at line 92 of file tif_fax3.c.

isAligned

#define isAligned	(		p,
			t
	)		((((unsigned long)(p)) & (sizeof (t)-1)) == 0)

Definition at line 94 of file tif_fax3.c.

Referenced by _TIFFFax3fillruns().

N

#define N

(

a

)

(sizeof (a) / sizeof (a[0]))

Definition at line 1133 of file tif_fax3.c.

Referenced by vl::Camera::adjustView(), vl::faceforward(), triangle_stripper::detail::graph_array< nodetype >::node::operator->(), and vl::reflect().

Nop

#define Nop

Definition at line 223 of file tif_fax3.c.

PIXEL

#define PIXEL	(		buf,
			ix
	)		((((buf)[(ix)>>3]) >> (7-((ix)&7))) & 1)

prematureEOF

#define prematureEOF

(

a0

)

Fax3PrematureEOF(module, tif, line, a0)

Definition at line 221 of file tif_fax3.c.

putcode

#define putcode	(		tif,
			te
	)		Fax3PutBits(tif, (te)->code, (te)->length)

Definition at line 587 of file tif_fax3.c.

SWAP [1/2]

#define SWAP	(		t,
			a,
			b
	)		{ t x; x = (a); (a) = (b); (b) = x; }

Definition at line 1373 of file tif_fax3.c.

SWAP [2/2]

#define SWAP	(		t,
			a,
			b
	)		{ t x; x = (a); (a) = (b); (b) = x; }

Definition at line 1373 of file tif_fax3.c.

UNCACHE_STATE

#define UNCACHE_STATE	(		tif,
			sp
	)

Value:

do {                    \
    sp->bit = BitsAvail;                        \
    sp->data = BitAcc;                          \
    sp->EOLcnt = EOLcnt;                        \
    tif->tif_rawcc -= (tidata_t) cp - tif->tif_rawcp;           \
    tif->tif_rawcp = (tidata_t) cp;                 \
} while (0)

Definition at line 136 of file tif_fax3.c.

unexpected

#define unexpected	(		table,
			a0
	)		Fax3Unexpected(module, tif, line, a0)

Definition at line 187 of file tif_fax3.c.

ZERO

#define ZERO	(		n,
			cp
	)

Value:

switch (n) {                            \
    case 7: (cp)[6] = 0; case 6: (cp)[5] = 0; case 5: (cp)[4] = 0;  \
    case 4: (cp)[3] = 0; case 3: (cp)[2] = 0; case 2: (cp)[1] = 0;  \
    case 1: (cp)[0] = 0; (cp) += (n); case 0:  ;            \
    }

Definition at line 351 of file tif_fax3.c.

Referenced by _TIFFFax3fillruns().

Enumeration Type Documentation

Ttag

enum Ttag

Enumerator
G3_1D
G3_2D

Definition at line 69 of file tif_fax3.c.

Function Documentation

_TIFFFax3fillruns()

void _TIFFFax3fillruns	(	unsigned char *	buf,
		uint32 *	runs,
		uint32 *	erun,
		uint32	lastx
	)

Definition at line 364 of file tif_fax3.c.

References FILL, isAligned, long(), and ZERO.

TIFFInitCCITTFax3()

int TIFFInitCCITTFax3	(	TIFF *	tif,
		int	scheme
	)

Definition at line 1354 of file tif_fax3.c.

References void().

TIFFInitCCITTFax4()

int TIFFInitCCITTFax4	(	TIFF *	tif,
		int	scheme
	)

Definition at line 1456 of file tif_fax3.c.

References void().

TIFFInitCCITTRLE()

int TIFFInitCCITTRLE	(	TIFF *	tif,
		int	scheme
	)

Definition at line 1532 of file tif_fax3.c.

References void().

TIFFInitCCITTRLEW()

int TIFFInitCCITTRLEW	(	TIFF *	tif,
		int	scheme
	)

Definition at line 1549 of file tif_fax3.c.

References void().