jdmaster.c File Reference

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

Data Structures
struct	my_decomp_master

Macros
#define	JPEG_INTERNALS

Typedefs
typedef my_decomp_master *	my_master_ptr

Functions
	ERREXIT1 (cinfo, JERR_BAD_STATE, cinfo->global_state)
	finish_output_pass (j_decompress_ptr cinfo)
	for (ci=0, compptr=cinfo->comp_info;ci< cinfo->num_components;ci++, compptr++)
	if (cinfo->scale_num *8<=cinfo->scale_denom)
else	if (cinfo->scale_num *4<=cinfo->scale_denom)
else	if (cinfo->scale_num *2<=cinfo->scale_denom)
	jinit_master_decompress (j_decompress_ptr cinfo)
	jpeg_new_colormap (j_decompress_ptr cinfo)
	master_selection (j_decompress_ptr cinfo)
	MEMCOPY (table+(4 *(MAXJSAMPLE+1)-CENTERJSAMPLE), cinfo->sample_range_limit, CENTERJSAMPLE *SIZEOF(JSAMPLE))
	MEMZERO (table-(MAXJSAMPLE+1),(MAXJSAMPLE+1)*SIZEOF(JSAMPLE))
	MEMZERO (table+(2 *(MAXJSAMPLE+1)),(2 *(MAXJSAMPLE+1)-CENTERJSAMPLE)*SIZEOF(JSAMPLE))
	prepare_for_output_pass (j_decompress_ptr cinfo)
	switch (cinfo->out_color_space)
	use_merged_upsample (j_decompress_ptr cinfo)

Variables
jpeg_component_info *	compptr
	else
int	i
cinfo	min_DCT_scaled_size = DCTSIZE
cinfo	output_components
cinfo	output_height = cinfo->image_height
cinfo	rec_outbuf_height = cinfo->max_v_samp_factor
cinfo	sample_range_limit = table
	table

#define JPEG_INTERNALS

typedef my_decomp_master* my_master_ptr

ERREXIT1	(	cinfo	,
		JERR_BAD_STATE	,
		cinfo->	global_state
	)

finish_output_pass

(

j_decompress_ptr

cinfo

)

References if(), and my_comp_master::pass_number.

Referenced by jinit_master_decompress().

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

References jpeg_component_info::DCT_scaled_size, DCTSIZE, jpeg_component_info::h_samp_factor, and jpeg_component_info::v_samp_factor.

if

(

cinfo->scale_num *8<=cinfo->

scale_denom

)

else if

(

cinfo->scale_num *4<=cinfo->

scale_denom

)

else if

(

cinfo->scale_num *2<=cinfo->

scale_denom

)

jinit_master_decompress

(

j_decompress_ptr

cinfo

)

References FALSE, finish_output_pass(), JPOOL_IMAGE, master_selection(), prepare_for_output_pass(), my_comp_master::pub, and SIZEOF.

Referenced by LOCAL().

jpeg_new_colormap

(

j_decompress_ptr

cinfo

)

References DSTATE_BUFIMAGE, ERREXIT, ERREXIT1, FALSE, if(), NULL, and my_comp_master::pub.

master_selection

(

j_decompress_ptr

cinfo

)

References cinfo, ERREXIT, FALSE, jd_samplesperrow, jinit_1pass_quantizer(), jinit_2pass_quantizer(), jinit_color_deconverter(), jinit_d_coef_controller(), jinit_d_main_controller(), jinit_d_post_controller(), jinit_huff_decoder(), jinit_inverse_dct(), jinit_merged_upsampler(), jinit_phuff_decoder(), jinit_upsampler(), NULL, my_comp_master::pass_number, samplesperrow, TRUE, and use_merged_upsample().

Referenced by jinit_master_decompress().

MEMCOPY	(	table+	4 *(MAXJSAMPLE+1)-CENTERJSAMPLE,
		cinfo->	sample_range_limit,
		CENTERJSAMPLE *	SIZEOFJSAMPLE
	)

Referenced by add_huff_table(), create_context_buffer(), jpeg_copy_critical_parameters(), jpeg_gen_optimal_table(), latch_quant_tables(), and while().

MEMZERO	(	table-	MAXJSAMPLE+1,
		(MAXJSAMPLE+1)*SIZEOF(JSAMPLE)
	)

MEMZERO	(	table+	2 *(MAXJSAMPLE+1),
		(2 *(MAXJSAMPLE+1)-CENTERJSAMPLE)*SIZEOF(JSAMPLE)
	)

prepare_for_output_pass

(

j_decompress_ptr

cinfo

)

References ERREXIT, FALSE, if(), JBUF_CRANK_DEST, JBUF_PASS_THRU, JBUF_SAVE_AND_PASS, NULL, my_comp_master::pass_number, my_comp_master::pub, and TRUE.

Referenced by jinit_master_decompress().

switch

(

cinfo->

out_color_space

)

References JCS_CMYK, JCS_GRAYSCALE, JCS_RGB, JCS_YCbCr, and JCS_YCCK.

Referenced by METHODDEF(), prepare_for_pass(), start_pass_1_quant(), and start_pass_main().

use_merged_upsample

(

j_decompress_ptr

cinfo

)

References FALSE, JCS_RGB, JCS_YCbCr, and TRUE.

Referenced by master_selection().

jpeg_component_info* compptr

Initial value:

{

  int ci

else

Initial value:

{
    
    cinfo->output_width = cinfo->image_width

int i

Initial value:

{
  JSAMPLE * table

cinfo min_DCT_scaled_size = DCTSIZE

cinfo output_components

Initial value:

= (cinfo->quantize_colors ? 1 :
                  cinfo->out_color_components)

cinfo output_height = cinfo->image_height

else cinfo rec_outbuf_height = cinfo->max_v_samp_factor

cinfo sample_range_limit = table

table[i]

Initial value:

= (JSAMPLE *)
    (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE,
        (5 * (MAXJSAMPLE+1) + CENTERJSAMPLE) * SIZEOF(JSAMPLE))