jcsample.c File Reference

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

Go to the source code of this file.

Classes
struct	my_downsampler

Macros
#define	JPEG_INTERNALS

Typedefs
typedef my_downsampler *	my_downsample_ptr

Functions
typedef	JMETHOD (void, downsample1_ptr,(j_compress_ptr cinfo, jpeg_component_info *compptr, JSAMPARRAY input_data, JSAMPARRAY output_data))
METHODDEF void	start_pass_downsample (j_compress_ptr cinfo)
LOCAL void	expand_right_edge (JSAMPARRAY image_data, int num_rows, JDIMENSION input_cols, JDIMENSION output_cols)
METHODDEF void	sep_downsample (j_compress_ptr cinfo, JSAMPIMAGE input_buf, JDIMENSION in_row_index, JSAMPIMAGE output_buf, JDIMENSION out_row_group_index)
METHODDEF void	int_downsample (j_compress_ptr cinfo, jpeg_component_info *compptr, JSAMPARRAY input_data, JSAMPARRAY output_data)
METHODDEF void	fullsize_downsample (j_compress_ptr cinfo, jpeg_component_info *compptr, JSAMPARRAY input_data, JSAMPARRAY output_data)
METHODDEF void	h2v1_downsample (j_compress_ptr cinfo, jpeg_component_info *compptr, JSAMPARRAY input_data, JSAMPARRAY output_data)
METHODDEF void	h2v2_downsample (j_compress_ptr cinfo, jpeg_component_info *compptr, JSAMPARRAY input_data, JSAMPARRAY output_data)
METHODDEF void	h2v2_smooth_downsample (j_compress_ptr cinfo, jpeg_component_info *compptr, JSAMPARRAY input_data, JSAMPARRAY output_data)
METHODDEF void	fullsize_smooth_downsample (j_compress_ptr cinfo, jpeg_component_info *compptr, JSAMPARRAY input_data, JSAMPARRAY output_data)
GLOBAL void	jinit_downsampler (j_compress_ptr cinfo)

Macro Definition Documentation

#define JPEG_INTERNALS

Definition at line 48 of file jcsample.c.

Typedef Documentation

typedef my_downsampler* my_downsample_ptr

Definition at line 67 of file jcsample.c.

Function Documentation

LOCAL void expand_right_edge	(	JSAMPARRAY	image_data,
		int	num_rows,
		JDIMENSION	input_cols,
		JDIMENSION	output_cols
	)

Definition at line 87 of file jcsample.c.

METHODDEF void fullsize_downsample	(	j_compress_ptr	cinfo,
		jpeg_component_info *	compptr,
		JSAMPARRAY	input_data,
		JSAMPARRAY	output_data
	)

Definition at line 187 of file jcsample.c.

METHODDEF void fullsize_smooth_downsample	(	j_compress_ptr	cinfo,
		jpeg_component_info *	compptr,
		JSAMPARRAY	input_data,
		JSAMPARRAY	output_data
	)

Definition at line 392 of file jcsample.c.

METHODDEF void h2v1_downsample	(	j_compress_ptr	cinfo,
		jpeg_component_info *	compptr,
		JSAMPARRAY	input_data,
		JSAMPARRAY	output_data
	)

Definition at line 212 of file jcsample.c.

METHODDEF void h2v2_downsample	(	j_compress_ptr	cinfo,
		jpeg_component_info *	compptr,
		JSAMPARRAY	input_data,
		JSAMPARRAY	output_data
	)

Definition at line 249 of file jcsample.c.

METHODDEF void h2v2_smooth_downsample	(	j_compress_ptr	cinfo,
		jpeg_component_info *	compptr,
		JSAMPARRAY	input_data,
		JSAMPARRAY	output_data
	)

Definition at line 292 of file jcsample.c.

METHODDEF void int_downsample	(	j_compress_ptr	cinfo,
		jpeg_component_info *	compptr,
		JSAMPARRAY	input_data,
		JSAMPARRAY	output_data
	)

Definition at line 140 of file jcsample.c.

GLOBAL void jinit_downsampler

(

j_compress_ptr

cinfo

)

Definition at line 464 of file jcsample.c.

typedef JMETHOD	(	void	,
		downsample1_ptr	,
		(j_compress_ptr cinfo, jpeg_component_info *compptr, JSAMPARRAY input_data, JSAMPARRAY output_data)
	)

METHODDEF void sep_downsample	(	j_compress_ptr	cinfo,
		JSAMPIMAGE	input_buf,
		JDIMENSION	in_row_index,
		JSAMPIMAGE	output_buf,
		JDIMENSION	out_row_group_index
	)

Definition at line 114 of file jcsample.c.

METHODDEF void start_pass_downsample

(

j_compress_ptr

cinfo

)

Definition at line 75 of file jcsample.c.