jcmaster.c File Reference

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

Data Structures
struct	my_comp_master

Macros
#define	JPEG_INTERNALS

Typedefs
typedef my_comp_master *	my_master_ptr

Enumerations
enum	c_pass_type {   main_pass,   huff_opt_pass,   output_pass }

Functions
	ERREXIT (cinfo, JERR_WIDTH_OVERFLOW)
	ERREXIT1 (cinfo, JERR_BAD_PRECISION, cinfo->data_precision)
	ERREXIT2 (cinfo, JERR_COMPONENT_COUNT, cinfo->num_components, MAX_COMPONENTS)
	finish_pass_master (j_compress_ptr cinfo)
	for (ci=0, compptr=cinfo->comp_info;ci< cinfo->num_components;ci++, compptr++)
	for (ci=0;ci< cinfo->num_components;ci++)
	if (cinfo->image_height<=0||cinfo->image_width<=0||cinfo->num_components<=0||cinfo->input_components<=0) ERREXIT(cinfo
	if ((long) cinfo->image_height >(long) JPEG_MAX_DIMENSION||(long) cinfo->image_width >(long) JPEG_MAX_DIMENSION) ERREXIT1(cinfo
	if (cinfo->comps_in_scan==1)
	if (cinfo->restart_in_rows > 0)
	jinit_c_master_control (j_compress_ptr cinfo, boolean transcode_only)
	pass_startup (j_compress_ptr cinfo)
	prepare_for_pass (j_compress_ptr cinfo)

Variables
cinfo	Ah = 0
cinfo	Al = 0
cinfo	blocks_in_MCU = 0
jpeg_component_info *	compptr
cinfo	comps_in_scan = cinfo->num_components
	else
JDIMENSION	jd_samplesperrow = (JDIMENSION) samplesperrow
	JERR_EMPTY_IMAGE
	JERR_IMAGE_TOO_BIG
unsigned int	JPEG_MAX_DIMENSION
cinfo	max_h_samp_factor = 1
cinfo	max_v_samp_factor = 1
cinfo	MCU_rows_in_scan
cinfo	MCUs_per_row
long	samplesperrow = (long) cinfo->image_width * (long) cinfo->input_components
cinfo	Se = DCTSIZE2-1
cinfo	Ss = 0
cinfo	total_iMCU_rows

#define JPEG_INTERNALS

typedef my_comp_master* my_master_ptr

enum c_pass_type

Enumerator
main_pass
huff_opt_pass
output_pass

ERREXIT	(	cinfo	,
		JERR_WIDTH_OVERFLOW
	)

ERREXIT1	(	cinfo	,
		JERR_BAD_PRECISION	,
		cinfo->	data_precision
	)

ERREXIT2	(	cinfo	,
		JERR_COMPONENT_COUNT	,
		cinfo->	num_components,
		MAX_COMPONENTS
	)

finish_pass_master

(

j_compress_ptr

cinfo

)

References cinfo, huff_opt_pass, main_pass, output_pass, my_comp_master::pass_number, my_comp_master::pass_type, and my_comp_master::scan_number.

Referenced by jinit_c_master_control().

for	(	ci	= 0,
		compptr	= cinfo->comp_info; ci < cinfo->num_components; ci++,
		compptr++
	)

References ERREXIT, jpeg_component_info::h_samp_factor, MAX, MAX_SAMP_FACTOR, and jpeg_component_info::v_samp_factor.

for

(

ci

= 0; ci < cinfo->num_components; ci++

)

References ci.

if

(

cinfo->image_height<=0||cinfo->image_width<=0||cinfo->num_components<=0||cinfo->input_components<=

0

)

if	(	(long) cinfo->	image_height,
		(long) JPEG_MAX_DIMENSION||(long) cinfo->	image_width,
		(long)	JPEG_MAX_DIMENSION
	)

if

(

cinfo->

comps_in_scan = = 1

)

if	(	cinfo->	restart_in_rows,
		0
	)

References MIN.

jinit_c_master_control	(	j_compress_ptr	cinfo,
		boolean	transcode_only
	)

References ERREXIT, FALSE, finish_pass_master(), huff_opt_pass, jpeg_comp_master::is_last_pass, JPOOL_IMAGE, main_pass, NULL, output_pass, my_comp_master::pass_number, pass_startup(), my_comp_master::pass_type, prepare_for_pass(), my_comp_master::pub, my_comp_master::scan_number, SIZEOF, my_comp_master::total_passes, and TRUE.

Referenced by jinit_compress_master(), and transencode_master_selection().

pass_startup

(

j_compress_ptr

cinfo

)

References FALSE.

Referenced by jinit_c_master_control().

prepare_for_pass

(

j_compress_ptr

cinfo

)

References jpeg_comp_master::call_pass_startup, ERREXIT, FALSE, huff_opt_pass, jpeg_comp_master::is_last_pass, JBUF_CRANK_DEST, JBUF_PASS_THRU, JBUF_SAVE_AND_PASS, main_pass, NULL, output_pass, my_comp_master::pass_number, my_comp_master::pass_type, my_comp_master::pub, my_comp_master::scan_number, switch(), my_comp_master::total_passes, and TRUE.

Referenced by jinit_c_master_control().

cinfo Ah = 0

cinfo Al = 0

Referenced by decode_mcu_AC_first(), decode_mcu_DC_first(), and decompress_smooth_data().

cinfo blocks_in_MCU = 0

jpeg_component_info * compptr

Initial value:

{
  int ci

Referenced by compress_data(), compress_first_pass(), compress_output(), consume_data(), create_context_buffer(), decode_mcu_DC_first(), decompress_data(), decompress_onepass(), decompress_smooth_data(), encode_mcu_gather(), encode_mcu_huff(), finish_pass_gather(), for(), jinit_c_coef_controller(), jinit_c_main_controller(), jinit_c_prep_controller(), jinit_d_coef_controller(), jinit_d_main_controller(), jinit_downsampler(), jinit_inverse_dct(), jinit_upsampler(), jpeg_set_colorspace(), latch_quant_tables(), METHODDEF(), pre_process_data(), sep_downsample(), sep_upsample(), smoothing_ok(), start_pass(), start_pass_fdctmgr(), and start_pass_huff_decoder().

cinfo comps_in_scan = cinfo->num_components

else

Initial value:

{

    

      ERREXIT2(cinfo, JERR_COMPONENT_COUNT, cinfo->comps_in_scan,
           MAX_COMPS_IN_SCAN)

jd_samplesperrow = (JDIMENSION) samplesperrow

Referenced by master_selection().

JERR_EMPTY_IMAGE

JERR_IMAGE_TOO_BIG

Referenced by METHODDEF().

unsigned int JPEG_MAX_DIMENSION

Referenced by METHODDEF().

cinfo max_h_samp_factor = 1

cinfo max_v_samp_factor = 1

Referenced by h2v2_fancy_upsample(), h2v2_upsample(), and int_upsample().

cinfo MCU_rows_in_scan

Initial value:

= (JDIMENSION)
      jdiv_round_up((long) cinfo->image_height,
            (long) (cinfo->max_v_samp_factor*DCTSIZE))

cinfo MCUs_per_row

Initial value:

= (JDIMENSION)
      jdiv_round_up((long) cinfo->image_width,
            (long) (cinfo->max_h_samp_factor*DCTSIZE))

Referenced by compress_output(), and consume_data().

samplesperrow = (long) cinfo->image_width * (long) cinfo->input_components

Referenced by alloc_sarray(), master_selection(), and request_virt_sarray().

cinfo Se = DCTSIZE2-1

Referenced by decode_mcu_AC_first(), decode_mcu_AC_refine(), and METHODDEF().

cinfo Ss = 0

cinfo total_iMCU_rows

Initial value:

= (JDIMENSION)
    jdiv_round_up((long) cinfo->image_height,
          (long) (cinfo->max_v_samp_factor*DCTSIZE))