jdsample.c File Reference

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

Go to the source code of this file.

Classes
struct	my_upsampler
Defines
#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)
	jinit_upsampler (j_decompress_ptr cinfo)

---

Define Documentation

#define JPEG_INTERNALS

Definition at line 22 of file jdsample.c.

---

Typedef Documentation

typedef my_upsampler* my_upsample_ptr

Definition at line 62 of file jdsample.c.

---

Function Documentation

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

Definition at line 158 of file jdsample.c.

Referenced by jinit_upsampler().

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

Definition at line 234 of file jdsample.c.

Referenced by jinit_upsampler().

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

Definition at line 262 of file jdsample.c.

References jcopy_sample_rows().

Referenced by jinit_upsampler().

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

Definition at line 190 of file jdsample.c.

References h, my_upsampler::h_expand, jcopy_sample_rows(), and my_upsampler::v_expand.

Referenced by jinit_upsampler().

jinit_upsampler

(

j_decompress_ptr

cinfo

)

Definition at line 294 of file jdsample.c.

References my_upsampler::color_buf, jpeg_component_info::component_needed, compptr, jpeg_component_info::DCT_h_scaled_size, jpeg_component_info::DCT_v_scaled_size, ERREXIT, FALSE, fullsize_upsample(), h2v1_upsample(), h2v2_upsample(), my_upsampler::h_expand, jpeg_component_info::h_samp_factor, int_upsample(), JPOOL_IMAGE, jround_up(), my_upsampler::methods, jpeg_upsampler::need_context_rows, noop_upsample(), my_upsampler::pub, my_upsampler::rowgroup_height, sep_upsample(), SIZEOF, start_pass_upsample(), TRUE, my_upsampler::v_expand, and jpeg_component_info::v_samp_factor.

Referenced by master_selection().

typedef JMETHOD	(	void	,
		upsample1_ptr	,
		(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
	)

Definition at line 171 of file jdsample.c.

References NULL.

Referenced by jinit_upsampler().

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 90 of file jdsample.c.

References my_upsampler::color_buf, compptr, if(), my_upsampler::methods, my_upsampler::next_row_out, num_rows, my_upsampler::rowgroup_height, and my_upsampler::rows_to_go.

Referenced by jinit_upsampler().

start_pass_upsample

(

j_decompress_ptr

cinfo

)

Definition at line 70 of file jdsample.c.

References my_upsampler::next_row_out, and my_upsampler::rows_to_go.

Referenced by jinit_upsampler().

---