#include "tiffiop.h"

Macros
#define	THUNDER_DATA 0x3f /* mask for 6-bit data */

#define	THUNDER_CODE 0xc0 /* mask for 2-bit code word */

#define	THUNDER_RUN 0x00 /* run of pixels w/ encoded count */

#define	THUNDER_2BITDELTAS 0x40 /* 3 pixels w/ encoded 2-bit deltas */

#define	DELTA2_SKIP 2 /* skip code for 2-bit deltas */

#define	THUNDER_3BITDELTAS 0x80 /* 2 pixels w/ encoded 3-bit deltas */

#define	DELTA3_SKIP 4 /* skip code for 3-bit deltas */

#define	THUNDER_RAW 0xc0 /* raw data encoded */

#define	SETPIXEL(op, v)

Functions
int	TIFFInitThunderScan (TIFF *tif, int scheme)

Macro Definition Documentation

◆ DELTA2_SKIP

#define DELTA2_SKIP 2 /* skip code for 2-bit deltas */

Definition at line 50 of file tif_thunder.c.

◆ DELTA3_SKIP

#define DELTA3_SKIP 4 /* skip code for 3-bit deltas */

Definition at line 52 of file tif_thunder.c.

◆ SETPIXEL

#define SETPIXEL	(	op,
		v
	)

Value:

{ \
    lastpixel = (v) & 0xf; \
    if (npixels++ & 1) \
        *op++ |= lastpixel; \
    else \
        op[0] = (tidataval_t) (lastpixel << 4); \
}

Definition at line 58 of file tif_thunder.c.

◆ THUNDER_2BITDELTAS

#define THUNDER_2BITDELTAS 0x40 /* 3 pixels w/ encoded 2-bit deltas */

Definition at line 49 of file tif_thunder.c.

◆ THUNDER_3BITDELTAS

#define THUNDER_3BITDELTAS 0x80 /* 2 pixels w/ encoded 3-bit deltas */

Definition at line 51 of file tif_thunder.c.

◆ THUNDER_CODE

#define THUNDER_CODE 0xc0 /* mask for 2-bit code word */

Definition at line 46 of file tif_thunder.c.

◆ THUNDER_DATA

#define THUNDER_DATA 0x3f /* mask for 6-bit data */

Definition at line 45 of file tif_thunder.c.

◆ THUNDER_RAW

#define THUNDER_RAW 0xc0 /* raw data encoded */

Definition at line 53 of file tif_thunder.c.

◆ THUNDER_RUN

#define THUNDER_RUN 0x00 /* run of pixels w/ encoded count */

Definition at line 48 of file tif_thunder.c.

Function Documentation

◆ TIFFInitThunderScan()

int TIFFInitThunderScan	(	TIFF *	tif,
		int	scheme
	)

Definition at line 149 of file tif_thunder.c.

References tiff::tif_decoderow, and void().

Macros

Functions