tif_fax3.h File Reference

#include "tiff.h"

Go to the source code of this file.

Classes
struct	TIFFFaxTabEnt

Macros
#define	S_Null   0
#define	S_Pass   1
#define	S_Horiz   2
#define	S_V0   3
#define	S_VR   4
#define	S_VL   5
#define	S_Ext   6
#define	S_TermW   7
#define	S_TermB   8
#define	S_MakeUpW   9
#define	S_MakeUpB   10
#define	S_MakeUp   11
#define	S_EOL   12
#define	EndOfData()   (cp >= ep)
#define	NeedBits8(n, eoflab)
#define	NeedBits16(n, eoflab)
#define	GetBits(n)   (BitAcc & ((1<<(n))-1))
#define	ClrBits(n)
#define	LOOKUP8(wid, tab, eoflab)
#define	LOOKUP16(wid, tab, eoflab)
#define	SETVALUE(x)
#define	SYNC_EOL(eoflab)
#define	CLEANUP_RUNS()
#define	EXPAND1D(eoflab)
#define	CHECK_b1
#define	EXPAND2D(eoflab)

Typedefs
typedef void(*	TIFFFaxFillFunc) (unsigned char *, uint32 *, uint32 *, uint32)

Functions
void	_TIFFFax3fillruns (unsigned char *, uint32 *, uint32 *, uint32)

Variables
const TIFFFaxTabEnt	TIFFFaxMainTable []
const TIFFFaxTabEnt	TIFFFaxWhiteTable []
const TIFFFaxTabEnt	TIFFFaxBlackTable []

Macro Definition Documentation

CHECK_b1

#define CHECK_b1

Value:

do {                            \
    if (pa != thisrun) while (b1 <= a0 && b1 < lastx) {         \
    b1 += pb[0] + pb[1];                        \
    pb += 2;                            \
    }                                   \
} while (0)

Definition at line 378 of file tif_fax3.h.

CLEANUP_RUNS

#define CLEANUP_RUNS

(

)

Value:

do {                        \
    if (RunLength)                          \
    SETVALUE(0);                            \
    if (a0 != lastx) {                          \
    badlength(a0, lastx);                       \
    while (a0 > lastx && pa > thisrun)              \
        a0 -= *--pa;                        \
    if (a0 < lastx) {                       \
        if (a0 < 0)                         \
        a0 = 0;                         \
        if ((pa-thisrun)&1)                     \
        SETVALUE(0);                        \
        SETVALUE(lastx - a0);                       \
    } else if (a0 > lastx) {                    \
        SETVALUE(lastx);                        \
        SETVALUE(0);                            \
    }                               \
    }                                   \
} while (0)

Definition at line 285 of file tif_fax3.h.

ClrBits

#define ClrBits

(

n

)

Value:

do {                            \
    BitsAvail -= (n);                           \
    BitAcc >>= (n);                         \
} while (0)

Definition at line 173 of file tif_fax3.h.

EndOfData

#define EndOfData

(

)

(cp >= ep)

Definition at line 111 of file tif_fax3.h.

EXPAND1D

#define EXPAND1D

(

eoflab

)

Definition at line 317 of file tif_fax3.h.

EXPAND2D

#define EXPAND2D

(

eoflab

)

Definition at line 388 of file tif_fax3.h.

GetBits

#define GetBits

(

n

)

(BitAcc & ((1<<(n))-1))

Definition at line 172 of file tif_fax3.h.

LOOKUP16

#define LOOKUP16	(		wid,
			tab,
			eoflab
	)

Value:

do {                    \
    NeedBits16(wid,eoflab);                     \
    TabEnt = tab + GetBits(wid);                    \
    ClrBits(TabEnt->Width);                     \
} while (0)

Definition at line 232 of file tif_fax3.h.

LOOKUP8

#define LOOKUP8	(		wid,
			tab,
			eoflab
	)

Value:

do {                    \
    NeedBits8(wid,eoflab);                      \
    TabEnt = tab + GetBits(wid);                    \
    ClrBits(TabEnt->Width);                     \
} while (0)

Definition at line 227 of file tif_fax3.h.

NeedBits16

#define NeedBits16	(		n,
			eoflab
	)

Value:

do {                    \
    if (BitsAvail < (n)) {                      \
    if (EndOfData()) {                      \
        if (BitsAvail == 0)         /* no valid bits */ \
        goto eoflab;                        \
        BitsAvail = (n);            /* pad with zeros */    \
    } else {                            \
        BitAcc |= ((uint32) bitmap[*cp++])<<BitsAvail;      \
        if ((BitsAvail += 8) < (n)) {               \
        if (EndOfData()) {                  \
            /* NB: we know BitsAvail is non-zero here */    \
            BitsAvail = (n);        /* pad with zeros */    \
        } else {                        \
            BitAcc |= ((uint32) bitmap[*cp++])<<BitsAvail;  \
            BitsAvail += 8;                 \
        }                           \
        }                               \
    }                               \
    }                                   \
} while (0)

Definition at line 151 of file tif_fax3.h.

NeedBits8

#define NeedBits8	(		n,
			eoflab
	)

Value:

do {                    \
    if (BitsAvail < (n)) {                      \
    if (EndOfData()) {                      \
        if (BitsAvail == 0)         /* no valid bits */ \
        goto eoflab;                        \
        BitsAvail = (n);            /* pad with zeros */    \
    } else {                            \
        BitAcc |= ((uint32) bitmap[*cp++])<<BitsAvail;      \
        BitsAvail += 8;                     \
    }                               \
    }                                   \
} while (0)

Definition at line 137 of file tif_fax3.h.

S_EOL

#define S_EOL   12

Definition at line 82 of file tif_fax3.h.

S_Ext

#define S_Ext   6

Definition at line 76 of file tif_fax3.h.

S_Horiz

#define S_Horiz   2

Definition at line 72 of file tif_fax3.h.

S_MakeUp

#define S_MakeUp   11

Definition at line 81 of file tif_fax3.h.

S_MakeUpB

#define S_MakeUpB   10

Definition at line 80 of file tif_fax3.h.

S_MakeUpW

#define S_MakeUpW   9

Definition at line 79 of file tif_fax3.h.

S_Null

#define S_Null   0

Definition at line 70 of file tif_fax3.h.

S_Pass

#define S_Pass   1

Definition at line 71 of file tif_fax3.h.

S_TermB

#define S_TermB   8

Definition at line 78 of file tif_fax3.h.

S_TermW

#define S_TermW   7

Definition at line 77 of file tif_fax3.h.

S_V0

#define S_V0   3

Definition at line 73 of file tif_fax3.h.

S_VL

#define S_VL   5

Definition at line 75 of file tif_fax3.h.

S_VR

#define S_VR   4

Definition at line 74 of file tif_fax3.h.

SETVALUE

#define SETVALUE

(

x

)

Value:

do {                            \
    *pa++ = RunLength + (x);                        \
    a0 += (x);                              \
    RunLength = 0;                          \
} while (0)

Definition at line 242 of file tif_fax3.h.

SYNC_EOL

#define SYNC_EOL

(

eoflab

)

Value:

do {                        \
    if (EOLcnt == 0) {                          \
    for (;;) {                          \
        NeedBits16(11,eoflab);                  \
        if (GetBits(11) == 0)                   \
        break;                          \
        ClrBits(1);                         \
    }                               \
    }                                   \
    for (;;) {                              \
    NeedBits8(8,eoflab);                        \
    if (GetBits(8))                         \
        break;                          \
    ClrBits(8);                         \
    }                                   \
    while (GetBits(1) == 0)                     \
    ClrBits(1);                         \
    ClrBits(1);             /* EOL bit */           \
    EOLcnt = 0;             /* reset EOL counter/flag */    \
} while (0)

Definition at line 259 of file tif_fax3.h.

Typedef Documentation

TIFFFaxFillFunc

typedef void(* TIFFFaxFillFunc) (unsigned char *, uint32 *, uint32 *, uint32)

Definition at line 55 of file tif_fax3.h.

Function Documentation

_TIFFFax3fillruns()

void _TIFFFax3fillruns	(	unsigned char *	,
		uint32 *	,
		uint32 *	,
		uint32
	)

Definition at line 364 of file tif_fax3.c.

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

Variable Documentation

TIFFFaxBlackTable

const TIFFFaxTabEnt TIFFFaxBlackTable[]

Definition at line 432 of file tif_fax3sm.c.

TIFFFaxMainTable

const TIFFFaxTabEnt TIFFFaxMainTable[]

Definition at line 5 of file tif_fax3sm.c.

TIFFFaxWhiteTable

const TIFFFaxTabEnt TIFFFaxWhiteTable[]

Definition at line 20 of file tif_fax3sm.c.