fltk 1.3.0rc3
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Classes | Defines | Typedefs | Functions

jchuff.c File Reference

#include "jinclude.h"
#include "jpeglib.h"
#include "jchuff.h"
Include dependency graph for jchuff.c:

Go to the source code of this file.

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))

Definition at line 41 of file jchuff.c.

Referenced by encode_mcu_huff(), and finish_pass_huff().

#define emit_byte (   state,
  val,
  action 
)
Value:
{ *(state)->next_output_byte++ = (JOCTET) (val);  \
          if (--(state)->free_in_buffer == 0)  \
            if (! dump_buffer(state))  \
              { action; } }

Definition at line 270 of file jchuff.c.

Referenced by emit_bits(), and emit_restart().

#define JPEG_INTERNALS

Definition at line 17 of file jchuff.c.

#define MAX_CLEN   32

Referenced by jpeg_gen_optimal_table().

Typedef Documentation

typedef huff_entropy_encoder* huff_entropy_ptr

Definition at line 74 of file jchuff.c.

Function Documentation

dump_buffer ( working_state *  state)

Definition at line 278 of file jchuff.c.

References FALSE, jpeg_destination_mgr::free_in_buffer, jpeg_destination_mgr::next_output_byte, and TRUE.

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

Definition at line 302 of file jchuff.c.

References emit_byte, ERREXIT, FALSE, int, size, and TRUE.

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(), encode_one_block(), and flush_bits().

emit_restart ( working_state *  state,
int  restart_num 
)

Definition at line 451 of file jchuff.c.

References emit_byte, FALSE, flush_bits(), JPEG_RST0, and TRUE.

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

encode_mcu_gather ( j_compress_ptr  cinfo,
JBLOCKROW *  MCU_data 
)

Definition at line 645 of file jchuff.c.

References huff_entropy_encoder::ac_count_ptrs, jpeg_component_info::ac_tbl_no, compptr, huff_entropy_encoder::dc_count_ptrs, jpeg_component_info::dc_tbl_no, htest_one_block(), savable_state::last_dc_val, huff_entropy_encoder::restarts_to_go, huff_entropy_encoder::saved, and TRUE.

Referenced by METHODDEF().

encode_mcu_huff ( j_compress_ptr  cinfo,
JBLOCKROW *  MCU_data 
)

Definition at line 476 of file jchuff.c.

References huff_entropy_encoder::ac_derived_tbls, jpeg_component_info::ac_tbl_no, ASSIGN_STATE, compptr, huff_entropy_encoder::dc_derived_tbls, jpeg_component_info::dc_tbl_no, emit_restart(), encode_one_block(), FALSE, huff_entropy_encoder::next_restart_num, huff_entropy_encoder::restarts_to_go, huff_entropy_encoder::saved, state, and TRUE.

Referenced by METHODDEF().

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

Definition at line 353 of file jchuff.c.

References DCTSIZE2, emit_bits(), ERREXIT, FALSE, i, jpeg_natural_order, MAX_COEF_BITS, nbits, and TRUE.

Referenced by encode_mcu_huff().

finish_pass_gather ( j_compress_ptr  cinfo)

Definition at line 846 of file jchuff.c.

References huff_entropy_encoder::ac_count_ptrs, jpeg_component_info::ac_tbl_no, compptr, huff_entropy_encoder::dc_count_ptrs, jpeg_component_info::dc_tbl_no, jpeg_alloc_huff_table(), jpeg_gen_optimal_table(), MEMZERO, NULL, NUM_HUFF_TBLS, SIZEOF, and TRUE.

Referenced by METHODDEF().

finish_pass_huff ( j_compress_ptr  cinfo)

Definition at line 533 of file jchuff.c.

References ASSIGN_STATE, ERREXIT, flush_bits(), huff_entropy_encoder::saved, and state.

Referenced by METHODDEF().

flush_bits ( working_state *  state)

Definition at line 340 of file jchuff.c.

References emit_bits(), FALSE, and TRUE.

Referenced by emit_restart(), finish_pass_huff(), and finish_pass_phuff().

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

Definition at line 572 of file jchuff.c.

References DCTSIZE2, ERREXIT, jpeg_natural_order, MAX_COEF_BITS, and nbits.

Referenced by encode_mcu_gather().

jinit_huff_encoder ( j_compress_ptr  cinfo)

Definition at line 891 of file jchuff.c.

References huff_entropy_encoder::ac_count_ptrs, huff_entropy_encoder::ac_derived_tbls, huff_entropy_encoder::dc_count_ptrs, huff_entropy_encoder::dc_derived_tbls, i, JPOOL_IMAGE, NULL, NUM_HUFF_TBLS, huff_entropy_encoder::pub, and SIZEOF.

Referenced by jinit_compress_master(), and transencode_master_selection().

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

Definition at line 705 of file jchuff.c.

References ERREXIT, FALSE, i, MAX_CLEN, MEMCOPY, MEMZERO, and SIZEOF.

Referenced by finish_pass_gather(), and finish_pass_gather_phuff().

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

Definition at line 179 of file jchuff.c.

References JHUFF_TBL::bits, c_derived_tbl::ehufco, c_derived_tbl::ehufsi, ERREXIT, ERREXIT1, htbl, JHUFF_TBL::huffval, i, int, JPOOL_IMAGE, MEMZERO, NULL, NUM_HUFF_TBLS, pdtbl, SIZEOF, and tblno.

Referenced by METHODDEF().

METHODDEF ( boolean  )

Definition at line 89 of file jchuff.c.

References huff_entropy_encoder::ac_count_ptrs, huff_entropy_encoder::ac_derived_tbls, jpeg_component_info::ac_tbl_no, compptr, huff_entropy_encoder::dc_count_ptrs, huff_entropy_encoder::dc_derived_tbls, jpeg_component_info::dc_tbl_no, encode_mcu_gather(), encode_mcu_huff(), ERREXIT, ERREXIT1, FALSE, finish_pass_gather(), finish_pass_huff(), jpeg_make_c_derived_tbl(), JPOOL_IMAGE, savable_state::last_dc_val, MEMZERO, huff_entropy_encoder::next_restart_num, NULL, NUM_HUFF_TBLS, huff_entropy_encoder::pub, savable_state::put_bits, savable_state::put_buffer, huff_entropy_encoder::restarts_to_go, huff_entropy_encoder::saved, SIZEOF, and TRUE.