jcphuff.cpp File Reference

#include "jinclude.h"
#include "mrpt_jpeglib.h"
#include "jchuff.h"

Go to the source code of this file.

Classes
struct	phuff_entropy_encoder

Macros
#define	JPEG_INTERNALS
#define	MAX_CORR_BITS   1000 /* Max # of correction bits I can buffer */
#define	ISHIFT_TEMPS
#define	IRIGHT_SHIFT(x, shft)   ((x) >> (shft))
#define	emit_byte(entropy, val)

Typedefs
typedef phuff_entropy_encoder *	phuff_entropy_ptr

Functions
encode_mcu_DC_first	JPP ((j_compress_ptr cinfo, JBLOCKROW *MCU_data))
	METHODDEF (void) finish_pass_phuff JPP((j_compress_ptr cinfo))
	start_pass_phuff (j_compress_ptr cinfo, boolean gather_statistics)
	dump_buffer (phuff_entropy_ptr entropy)
INLINE	emit_bits (phuff_entropy_ptr entropy, unsigned int code, int size)
	flush_bits (phuff_entropy_ptr entropy)
INLINE	emit_symbol (phuff_entropy_ptr entropy, int tbl_no, int symbol)
	emit_buffered_bits (phuff_entropy_ptr entropy, char *bufstart, unsigned int nbits)
	emit_eobrun (phuff_entropy_ptr entropy)
	emit_restart (phuff_entropy_ptr entropy, int restart_num)
	encode_mcu_DC_first (j_compress_ptr cinfo, JBLOCKROW *MCU_data)
	encode_mcu_AC_first (j_compress_ptr cinfo, JBLOCKROW *MCU_data)
	encode_mcu_DC_refine (j_compress_ptr cinfo, JBLOCKROW *MCU_data)
	encode_mcu_AC_refine (j_compress_ptr cinfo, JBLOCKROW *MCU_data)
	finish_pass_phuff (j_compress_ptr cinfo)
	finish_pass_gather_phuff (j_compress_ptr cinfo)
	jinit_phuff_encoder (j_compress_ptr cinfo)

Macro Definition Documentation

emit_byte

#define emit_byte	(		entropy,
			val
	)

Value:

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

Definition at line 204 of file jcphuff.cpp.

Referenced by emit_bits(), and emit_restart().

IRIGHT_SHIFT

#define IRIGHT_SHIFT	(		x,
			shft
	)		((x) >> (shft))

Definition at line 81 of file jcphuff.cpp.

Referenced by encode_mcu_DC_first().

ISHIFT_TEMPS

#define ISHIFT_TEMPS

Definition at line 80 of file jcphuff.cpp.

Referenced by encode_mcu_DC_first().

JPEG_INTERNALS

#define JPEG_INTERNALS

Definition at line 10 of file jcphuff.cpp.

MAX_CORR_BITS

#define MAX_CORR_BITS   1000 /* Max # of correction bits I can buffer */

Definition at line 66 of file jcphuff.cpp.

Referenced by encode_mcu_AC_refine(), and start_pass_phuff().

Typedef Documentation

phuff_entropy_ptr

typedef phuff_entropy_encoder* phuff_entropy_ptr

Definition at line 58 of file jcphuff.cpp.

Function Documentation

dump_buffer()

dump_buffer

(

phuff_entropy_ptr

entropy

)

Definition at line 211 of file jcphuff.cpp.

References ERREXIT, jpeg_destination_mgr::free_in_buffer, and jpeg_destination_mgr::next_output_byte.

emit_bits()

INLINE emit_bits	(	phuff_entropy_ptr	entropy,
		unsigned int	code,
		int	size
	)

Definition at line 233 of file jcphuff.cpp.

References emit_byte, and ERREXIT.

Referenced by emit_buffered_bits(), emit_eobrun(), emit_symbol(), encode_mcu_AC_first(), encode_mcu_AC_refine(), encode_mcu_DC_first(), encode_mcu_DC_refine(), and flush_bits().

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emit_buffered_bits()

emit_buffered_bits	(	phuff_entropy_ptr	entropy,
		char *	bufstart,
		unsigned int	nbits
	)

Definition at line 302 of file jcphuff.cpp.

References emit_bits().

Referenced by emit_eobrun(), and encode_mcu_AC_refine().

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emit_eobrun()

emit_eobrun

(

phuff_entropy_ptr

entropy

)

Definition at line 320 of file jcphuff.cpp.

References emit_bits(), emit_buffered_bits(), emit_symbol(), and ERREXIT.

Referenced by emit_restart(), encode_mcu_AC_first(), encode_mcu_AC_refine(), finish_pass_gather_phuff(), and finish_pass_phuff().

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emit_restart()

emit_restart	(	phuff_entropy_ptr	entropy,
		int	restart_num
	)

Definition at line 348 of file jcphuff.cpp.

References emit_byte, emit_eobrun(), flush_bits(), and JPEG_RST0.

Referenced by encode_mcu_AC_first(), encode_mcu_AC_refine(), encode_mcu_DC_first(), and encode_mcu_DC_refine().

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emit_symbol()

INLINE emit_symbol	(	phuff_entropy_ptr	entropy,
		int	tbl_no,
		int	symbol
	)

Definition at line 286 of file jcphuff.cpp.

References c_derived_tbl::ehufco, c_derived_tbl::ehufsi, and emit_bits().

Referenced by emit_eobrun(), encode_mcu_AC_first(), encode_mcu_AC_refine(), and encode_mcu_DC_first().

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encode_mcu_AC_first()

encode_mcu_AC_first	(	j_compress_ptr	cinfo,
		JBLOCKROW *	MCU_data
	)

Definition at line 473 of file jcphuff.cpp.

References phuff_entropy_encoder::ac_tbl_no, emit_bits(), emit_eobrun(), emit_restart(), emit_symbol(), phuff_entropy_encoder::EOBRUN, ERREXIT, phuff_entropy_encoder::free_in_buffer, jpeg_natural_order, MAX_COEF_BITS, phuff_entropy_encoder::next_output_byte, phuff_entropy_encoder::next_restart_num, phuff_entropy_encoder::restarts_to_go, and TRUE.

Referenced by start_pass_phuff().

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encode_mcu_AC_refine()

encode_mcu_AC_refine	(	j_compress_ptr	cinfo,
		JBLOCKROW *	MCU_data
	)

Definition at line 637 of file jcphuff.cpp.

References phuff_entropy_encoder::ac_tbl_no, phuff_entropy_encoder::BE, phuff_entropy_encoder::bit_buffer, DCTSIZE2, emit_bits(), emit_buffered_bits(), emit_eobrun(), emit_restart(), emit_symbol(), phuff_entropy_encoder::EOBRUN, phuff_entropy_encoder::free_in_buffer, jpeg_natural_order, MAX_CORR_BITS, phuff_entropy_encoder::next_output_byte, phuff_entropy_encoder::next_restart_num, phuff_entropy_encoder::restarts_to_go, and TRUE.

Referenced by start_pass_phuff().

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encode_mcu_DC_first()

encode_mcu_DC_first	(	j_compress_ptr	cinfo,
		JBLOCKROW *	MCU_data
	)

Definition at line 381 of file jcphuff.cpp.

References compptr, jpeg_component_info::dc_tbl_no, emit_bits(), emit_restart(), emit_symbol(), ERREXIT, phuff_entropy_encoder::free_in_buffer, IRIGHT_SHIFT, ISHIFT_TEMPS, phuff_entropy_encoder::last_dc_val, MAX_COEF_BITS, phuff_entropy_encoder::next_output_byte, phuff_entropy_encoder::next_restart_num, phuff_entropy_encoder::restarts_to_go, and TRUE.

Referenced by start_pass_phuff().

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encode_mcu_DC_refine()

encode_mcu_DC_refine	(	j_compress_ptr	cinfo,
		JBLOCKROW *	MCU_data
	)

Definition at line 588 of file jcphuff.cpp.

References emit_bits(), emit_restart(), phuff_entropy_encoder::free_in_buffer, phuff_entropy_encoder::next_output_byte, phuff_entropy_encoder::next_restart_num, phuff_entropy_encoder::restarts_to_go, and TRUE.

Referenced by start_pass_phuff().

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finish_pass_gather_phuff()

finish_pass_gather_phuff

(

j_compress_ptr

cinfo

)

Definition at line 793 of file jcphuff.cpp.

References jpeg_component_info::ac_tbl_no, compptr, phuff_entropy_encoder::count_ptrs, jpeg_component_info::dc_tbl_no, emit_eobrun(), jpeg_alloc_huff_table(), jpeg_gen_optimal_table(), MEMZERO, NUM_HUFF_TBLS, SIZEOF, and TRUE.

Referenced by start_pass_phuff().

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finish_pass_phuff()

finish_pass_phuff

(

j_compress_ptr

cinfo

)

Definition at line 773 of file jcphuff.cpp.

References emit_eobrun(), flush_bits(), phuff_entropy_encoder::free_in_buffer, and phuff_entropy_encoder::next_output_byte.

Referenced by start_pass_phuff().

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flush_bits()

flush_bits

(

phuff_entropy_ptr

entropy

)

Definition at line 273 of file jcphuff.cpp.

References emit_bits().

Referenced by emit_restart(), and finish_pass_phuff().

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jinit_phuff_encoder()

jinit_phuff_encoder

(

j_compress_ptr

cinfo

)

Definition at line 844 of file jcphuff.cpp.

References phuff_entropy_encoder::bit_buffer, phuff_entropy_encoder::count_ptrs, phuff_entropy_encoder::derived_tbls, JPOOL_IMAGE, NUM_HUFF_TBLS, phuff_entropy_encoder::pub, SIZEOF, and start_pass_phuff().

Referenced by jinit_compress_master(), and transencode_master_selection().

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JPP()

encode_mcu_DC_first JPP

(

(j_compress_ptr cinfo, JBLOCKROW *MCU_data)

)

METHODDEF()

METHODDEF

(

void

)

start_pass_phuff()

start_pass_phuff	(	j_compress_ptr	cinfo,
		boolean	gather_statistics
	)

Definition at line 101 of file jcphuff.cpp.

References phuff_entropy_encoder::ac_tbl_no, jpeg_component_info::ac_tbl_no, phuff_entropy_encoder::BE, phuff_entropy_encoder::bit_buffer, phuff_entropy_encoder::cinfo, compptr, phuff_entropy_encoder::count_ptrs, jpeg_component_info::dc_tbl_no, phuff_entropy_encoder::derived_tbls, encode_mcu_AC_first(), encode_mcu_AC_refine(), encode_mcu_DC_first(), encode_mcu_DC_refine(), phuff_entropy_encoder::EOBRUN, ERREXIT1, finish_pass_gather_phuff(), finish_pass_phuff(), phuff_entropy_encoder::gather_statistics, jpeg_make_c_derived_tbl(), JPOOL_IMAGE, phuff_entropy_encoder::last_dc_val, MAX_CORR_BITS, MEMZERO, phuff_entropy_encoder::next_restart_num, NUM_HUFF_TBLS, phuff_entropy_encoder::pub, phuff_entropy_encoder::put_bits, phuff_entropy_encoder::put_buffer, phuff_entropy_encoder::restarts_to_go, and SIZEOF.

Referenced by jinit_phuff_encoder().

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