decompress-huffman.h File Reference

#include <cstdint>
#include <cstring>

Include dependency graph for decompress-huffman.h:

Go to the source code of this file.

Macros
#define	ONE_NIBBLE   ONE_NIBBLE_LONG
#define	ONE_NIBBLE_LONG()
#define	ONE_NIBBLE_ROLLED()
#define	ONE_NIBBLE_ROLLED_CHECKING(_bound_)
#define	ONE_NIBBLE_UNROLLED()

Functions
bool	unhuffimage4 (uint32_t *compressed_image, uint32_t compressed_length_u32s, uint32_t stride_bytes, uint32_t height, unsigned char *image)

Variables
static int	DecompressionStateTable [510 *16]

Macro Definition Documentation

#define ONE_NIBBLE   ONE_NIBBLE_LONG

Definition at line 155 of file decompress-huffman.h.

#define ONE_NIBBLE_LONG

(

)

Definition at line 59 of file decompress-huffman.h.

#define ONE_NIBBLE_ROLLED

(

)

Value:

currentState = stateWord & 0x7fc0; \
       nextStateWord = *(uint32_t *)(((unsigned char *)DecompressionStateTable) + currentState + nibble); \
       if (stateWord & 0x8) { \
              *currentImageLine++ = byteAbove + (unsigned char)(stateWord >> 24); \
              byteAbove = *previousImageLine++; \
              for (i = 0; i < (stateWord & 0x7); i++) { \
                     *currentImageLine++ = byteAbove; \
                     byteAbove = *previousImageLine++; \
              } \
       } \
       stateWord = nextStateWord;

Definition at line 9 of file decompress-huffman.h.

#define ONE_NIBBLE_ROLLED_CHECKING

(

_bound_

)

Value:

currentState = stateWord & 0x7fc0; \
       nextStateWord = *(uint32_t *)(((unsigned char *)DecompressionStateTable) + currentState + nibble); \
       if (stateWord & 0x8) { \
              *currentImageLine++ = byteAbove + (unsigned char)(stateWord >> 24); \
              byteAbove = *previousImageLine++; \
              for (i = 0; i < (stateWord & 0x7) && currentImageLine < (_bound_); i++) { \
                     *currentImageLine++ = byteAbove; \
                     byteAbove = *previousImageLine++; \
              } \
       } \
       stateWord = nextStateWord;

Definition at line 142 of file decompress-huffman.h.

#define ONE_NIBBLE_UNROLLED

(

)

Definition at line 22 of file decompress-huffman.h.

Function Documentation

bool unhuffimage4	(	uint32_t *	compressed_image,
		uint32_t	compressed_length_u32s,
		uint32_t	stride_bytes,
		uint32_t	height,
		unsigned char *	image
	)

Definition at line 8832 of file decompress-huffman.h.

Variable Documentation

int DecompressionStateTable[510 *16]

static

Definition at line 157 of file decompress-huffman.h.