jdsample.c File Reference

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

Go to the source code of this file.

Macros
#define	JPEG_INTERNALS

Typedefs
typedef my_upsampler *	my_upsample_ptr

Functions
typedef	JMETHOD (void, upsample1_ptr,(j_decompress_ptr cinfo, jpeg_component_info *compptr, JSAMPARRAY input_data, JSAMPARRAY *output_data_ptr))
	start_pass_upsample (j_decompress_ptr cinfo)
	sep_upsample (j_decompress_ptr cinfo, JSAMPIMAGE input_buf, JDIMENSION *in_row_group_ctr, JDIMENSION in_row_groups_avail, JSAMPARRAY output_buf, JDIMENSION *out_row_ctr, JDIMENSION out_rows_avail)
	fullsize_upsample (j_decompress_ptr cinfo, jpeg_component_info *compptr, JSAMPARRAY input_data, JSAMPARRAY *output_data_ptr)
	noop_upsample (j_decompress_ptr cinfo, jpeg_component_info *compptr, JSAMPARRAY input_data, JSAMPARRAY *output_data_ptr)
	int_upsample (j_decompress_ptr cinfo, jpeg_component_info *compptr, JSAMPARRAY input_data, JSAMPARRAY *output_data_ptr)
	h2v1_upsample (j_decompress_ptr cinfo, jpeg_component_info *compptr, JSAMPARRAY input_data, JSAMPARRAY *output_data_ptr)
	h2v2_upsample (j_decompress_ptr cinfo, jpeg_component_info *compptr, JSAMPARRAY input_data, JSAMPARRAY *output_data_ptr)
	h2v1_fancy_upsample (j_decompress_ptr cinfo, jpeg_component_info *compptr, JSAMPARRAY input_data, JSAMPARRAY *output_data_ptr)
	h2v2_fancy_upsample (j_decompress_ptr cinfo, jpeg_component_info *compptr, JSAMPARRAY input_data, JSAMPARRAY *output_data_ptr)
	jinit_upsampler (j_decompress_ptr cinfo)

Macro Definition Documentation

JPEG_INTERNALS

#define JPEG_INTERNALS

Definition at line 21 of file jdsample.c.

Typedef Documentation

my_upsample_ptr

typedef my_upsampler* my_upsample_ptr

Definition at line 61 of file jdsample.c.

Function Documentation

fullsize_upsample()

fullsize_upsample	(	j_decompress_ptr	cinfo,
		jpeg_component_info *	compptr,
		JSAMPARRAY	input_data,
		JSAMPARRAY *	output_data_ptr
	)

Definition at line 157 of file jdsample.c.

References METHODDEF.

Referenced by jinit_upsampler().

h2v1_fancy_upsample()

h2v1_fancy_upsample	(	j_decompress_ptr	cinfo,
		jpeg_component_info *	compptr,
		JSAMPARRAY	input_data,
		JSAMPARRAY *	output_data_ptr
	)

Definition at line 304 of file jdsample.c.

References compptr, jpeg_component_info::downsampled_width, GETJSAMPLE, and METHODDEF.

Referenced by jinit_upsampler().

h2v1_upsample()

h2v1_upsample	(	j_decompress_ptr	cinfo,
		jpeg_component_info *	compptr,
		JSAMPARRAY	input_data,
		JSAMPARRAY *	output_data_ptr
	)

Definition at line 233 of file jdsample.c.

References METHODDEF.

Referenced by jinit_upsampler().

h2v2_fancy_upsample()

h2v2_fancy_upsample	(	j_decompress_ptr	cinfo,
		jpeg_component_info *	compptr,
		JSAMPARRAY	input_data,
		JSAMPARRAY *	output_data_ptr
	)

Definition at line 345 of file jdsample.c.

References compptr, jpeg_component_info::downsampled_width, GETJSAMPLE, and GLOBAL.

Referenced by jinit_upsampler().

h2v2_upsample()

h2v2_upsample	(	j_decompress_ptr	cinfo,
		jpeg_component_info *	compptr,
		JSAMPARRAY	input_data,
		JSAMPARRAY *	output_data_ptr
	)

Definition at line 261 of file jdsample.c.

References jcopy_sample_rows(), and METHODDEF.

Referenced by jinit_upsampler().

int_upsample()

int_upsample	(	j_decompress_ptr	cinfo,
		jpeg_component_info *	compptr,
		JSAMPARRAY	input_data,
		JSAMPARRAY *	output_data_ptr
	)

Definition at line 189 of file jdsample.c.

References jpeg_component_info::component_index, compptr, jcopy_sample_rows(), and METHODDEF.

Referenced by jinit_upsampler().

jinit_upsampler()

jinit_upsampler

(

j_decompress_ptr

cinfo

)

Definition at line 399 of file jdsample.c.

References jpeg_component_info::component_needed, compptr, jpeg_component_info::DCT_scaled_size, jpeg_component_info::downsampled_width, ERREXIT, FALSE, fullsize_upsample(), h2v1_fancy_upsample(), h2v1_upsample(), h2v2_fancy_upsample(), h2v2_upsample(), jpeg_component_info::h_samp_factor, int_upsample(), JPOOL_IMAGE, jround_up(), long(), noop_upsample(), sep_upsample(), SIZEOF, start_pass_upsample(), TRUE, and jpeg_component_info::v_samp_factor.

Referenced by master_selection().

JMETHOD()

typedef JMETHOD	(	void	,
		upsample1_ptr	,
		(j_decompress_ptr cinfo, jpeg_component_info *compptr, JSAMPARRAY input_data, JSAMPARRAY *output_data_ptr)
	)

noop_upsample()

noop_upsample	(	j_decompress_ptr	cinfo,
		jpeg_component_info *	compptr,
		JSAMPARRAY	input_data,
		JSAMPARRAY *	output_data_ptr
	)

Definition at line 170 of file jdsample.c.

References METHODDEF, and NULL.

Referenced by jinit_upsampler().

sep_upsample()

sep_upsample	(	j_decompress_ptr	cinfo,
		JSAMPIMAGE	input_buf,
		JDIMENSION *	in_row_group_ctr,
		JDIMENSION	in_row_groups_avail,
		JSAMPARRAY	output_buf,
		JDIMENSION *	out_row_ctr,
		JDIMENSION	out_rows_avail
	)

Definition at line 89 of file jdsample.c.

References compptr, if(), int, METHODDEF, and num_rows.

Referenced by jinit_upsampler().

start_pass_upsample()

start_pass_upsample

(

j_decompress_ptr

cinfo

)

Definition at line 69 of file jdsample.c.

Referenced by jinit_upsampler().