jcprepct.c File Reference

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

Go to the source code of this file.

Macros
#define	JPEG_INTERNALS
#define	CONTEXT_ROWS_SUPPORTED

Typedefs
typedef my_prep_controller *	my_prep_ptr

Functions
	start_pass_prep (j_compress_ptr cinfo, J_BUF_MODE pass_mode)
	expand_bottom_edge (JSAMPARRAY image_data, JDIMENSION num_cols, int input_rows, int output_rows)
	pre_process_data (j_compress_ptr cinfo, JSAMPARRAY input_buf, JDIMENSION *in_row_ctr, JDIMENSION in_rows_avail, JSAMPIMAGE output_buf, JDIMENSION *out_row_group_ctr, JDIMENSION out_row_groups_avail)
	pre_process_context (j_compress_ptr cinfo, JSAMPARRAY input_buf, JDIMENSION *in_row_ctr, JDIMENSION in_rows_avail, JSAMPIMAGE output_buf, JDIMENSION *out_row_group_ctr, JDIMENSION out_row_groups_avail)
	create_context_buffer (j_compress_ptr cinfo)
	jinit_c_prep_controller (j_compress_ptr cinfo, boolean need_full_buffer)

Macro Definition Documentation

CONTEXT_ROWS_SUPPORTED

#define CONTEXT_ROWS_SUPPORTED

Definition at line 28 of file jcprepct.c.

JPEG_INTERNALS

#define JPEG_INTERNALS

Definition at line 17 of file jcprepct.c.

Typedef Documentation

my_prep_ptr

typedef my_prep_controller* my_prep_ptr

Definition at line 70 of file jcprepct.c.

Function Documentation

create_context_buffer()

create_context_buffer

(

j_compress_ptr

cinfo

)

Definition at line 267 of file jcprepct.c.

References compptr, DCTSIZE, GLOBAL, jpeg_component_info::h_samp_factor, i, JPOOL_IMAGE, MEMCOPY, SIZEOF, and jpeg_component_info::width_in_blocks.

Referenced by jinit_c_prep_controller().

expand_bottom_edge()

expand_bottom_edge	(	JSAMPARRAY	image_data,
		JDIMENSION	num_cols,
		int	input_rows,
		int	output_rows
	)

Definition at line 106 of file jcprepct.c.

References image_data, jcopy_sample_rows(), METHODDEF, and num_cols.

Referenced by pre_process_context(), and pre_process_data().

jinit_c_prep_controller()

jinit_c_prep_controller	(	j_compress_ptr	cinfo,
		boolean	need_full_buffer
	)

Definition at line 315 of file jcprepct.c.

References compptr, create_context_buffer(), DCTSIZE, ERREXIT, jpeg_component_info::h_samp_factor, JPOOL_IMAGE, need_full_buffer, pre_process_context(), pre_process_data(), SIZEOF, start_pass_prep(), and jpeg_component_info::width_in_blocks.

Referenced by jinit_compress_master().

pre_process_context()

pre_process_context	(	j_compress_ptr	cinfo,
		JSAMPARRAY	input_buf,
		JDIMENSION *	in_row_ctr,
		JDIMENSION	in_rows_avail,
		JSAMPIMAGE	output_buf,
		JDIMENSION *	out_row_group_ctr,
		JDIMENSION	out_row_groups_avail
	)

Definition at line 195 of file jcprepct.c.

References expand_bottom_edge(), int, jcopy_sample_rows(), LOCAL, MIN, and output_buf.

Referenced by jinit_c_prep_controller().

pre_process_data()

pre_process_data	(	j_compress_ptr	cinfo,
		JSAMPARRAY	input_buf,
		JDIMENSION *	in_row_ctr,
		JDIMENSION	in_rows_avail,
		JSAMPIMAGE	output_buf,
		JDIMENSION *	out_row_group_ctr,
		JDIMENSION	out_row_groups_avail
	)

Definition at line 128 of file jcprepct.c.

References compptr, DCTSIZE, expand_bottom_edge(), int, METHODDEF, MIN, output_buf, jpeg_component_info::v_samp_factor, and jpeg_component_info::width_in_blocks.

Referenced by jinit_c_prep_controller().

start_pass_prep()

start_pass_prep	(	j_compress_ptr	cinfo,
		J_BUF_MODE	pass_mode
	)

Definition at line 78 of file jcprepct.c.

References ERREXIT, if(), JBUF_PASS_THRU, and LOCAL.

Referenced by jinit_c_prep_controller().