jchuff.c File Reference

#include "jinclude.h"
#include "jpeglib.h"
#include "jchuff.h"

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Classes
struct	savable_state
struct	huff_entropy_encoder
struct	working_state
Defines
#define	JPEG_INTERNALS
#define	ASSIGN_STATE(dest, src)   ((dest) = (src))
#define	emit_byte(state, val, action)
#define	MAX_CLEN   32
Typedefs
typedef huff_entropy_encoder *	huff_entropy_ptr
Functions
	METHODDEF (boolean)
	jpeg_make_c_derived_tbl (j_compress_ptr cinfo, boolean isDC, int tblno, c_derived_tbl **pdtbl)
	dump_buffer (working_state *state)
INLINE	emit_bits (working_state *state, unsigned int code, int size)
	flush_bits (working_state *state)
	encode_one_block (working_state *state, JCOEFPTR block, int last_dc_val, c_derived_tbl *dctbl, c_derived_tbl *actbl)
	emit_restart (working_state *state, int restart_num)
	encode_mcu_huff (j_compress_ptr cinfo, JBLOCKROW *MCU_data)
	finish_pass_huff (j_compress_ptr cinfo)
	htest_one_block (j_compress_ptr cinfo, JCOEFPTR block, int last_dc_val, long dc_counts[], long ac_counts[])
	encode_mcu_gather (j_compress_ptr cinfo, JBLOCKROW *MCU_data)
	jpeg_gen_optimal_table (j_compress_ptr cinfo, JHUFF_TBL *htbl, long freq[])
	finish_pass_gather (j_compress_ptr cinfo)
	jinit_huff_encoder (j_compress_ptr cinfo)

---

Define Documentation

#define ASSIGN_STATE	(		dest,
			src
	)			((dest) = (src))

#define emit_byte	(		state,
			val,
			action
	)

Value:

{ *(state)->next_output_byte++ = (JOCTET) (val);  \
          if (--(state)->free_in_buffer == 0)  \
            if (! dump_buffer(state))  \
              { action; } }

#define JPEG_INTERNALS

#define MAX_CLEN   32

---

Typedef Documentation

typedef huff_entropy_encoder* huff_entropy_ptr

---

Function Documentation

dump_buffer

(

working_state *

state

)

INLINE emit_bits	(	working_state *	state,
		unsigned int	code,
		int	size
	)

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emit_restart	(	working_state *	state,
		int	restart_num
	)

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encode_mcu_gather	(	j_compress_ptr	cinfo,
		JBLOCKROW *	MCU_data
	)

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encode_mcu_huff	(	j_compress_ptr	cinfo,
		JBLOCKROW *	MCU_data
	)

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encode_one_block	(	working_state *	state,
		JCOEFPTR	block,
		int	last_dc_val,
		c_derived_tbl *	dctbl,
		c_derived_tbl *	actbl
	)

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finish_pass_gather

(

j_compress_ptr

cinfo

)

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finish_pass_huff

(

j_compress_ptr

cinfo

)

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flush_bits

(

working_state *

state

)

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htest_one_block	(	j_compress_ptr	cinfo,
		JCOEFPTR	block,
		int	last_dc_val,
		long	dc_counts[],
		long	ac_counts[]
	)

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jinit_huff_encoder

(

j_compress_ptr

cinfo

)

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jpeg_gen_optimal_table	(	j_compress_ptr	cinfo,
		JHUFF_TBL *	htbl,
		long	freq[]
	)

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jpeg_make_c_derived_tbl	(	j_compress_ptr	cinfo,
		boolean	isDC,
		int	tblno,
		c_derived_tbl **	pdtbl
	)

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METHODDEF

(

boolean

)

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