jdcolor.c File Reference

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

Include dependency graph for jdcolor.c:

Go to the source code of this file.

Classes
struct	my_color_deconverter
Defines
#define	JPEG_INTERNALS
#define	SCALEBITS   16
#define	ONE_HALF   ((INT32) 1 << (SCALEBITS-1))
#define	FIX(x)   ((INT32) ((x) * (1L<<SCALEBITS) + 0.5))
Typedefs
typedef my_color_deconverter *	my_cconvert_ptr
Functions
	build_ycc_rgb_table (j_decompress_ptr cinfo)
	ycc_rgb_convert (j_decompress_ptr cinfo, JSAMPIMAGE input_buf, JDIMENSION input_row, JSAMPARRAY output_buf, int num_rows)
	null_convert (j_decompress_ptr cinfo, JSAMPIMAGE input_buf, JDIMENSION input_row, JSAMPARRAY output_buf, int num_rows)
	grayscale_convert (j_decompress_ptr cinfo, JSAMPIMAGE input_buf, JDIMENSION input_row, JSAMPARRAY output_buf, int num_rows)
	gray_rgb_convert (j_decompress_ptr cinfo, JSAMPIMAGE input_buf, JDIMENSION input_row, JSAMPARRAY output_buf, int num_rows)
	ycck_cmyk_convert (j_decompress_ptr cinfo, JSAMPIMAGE input_buf, JDIMENSION input_row, JSAMPARRAY output_buf, int num_rows)
	start_pass_dcolor (j_decompress_ptr cinfo)
	jinit_color_deconverter (j_decompress_ptr cinfo)

---

Define Documentation

#define FIX

(

x

)

((INT32) ((x) * (1L<<SCALEBITS) + 0.5))

Definition at line 62 of file jdcolor.c.

Referenced by build_ycc_rgb_table().

#define JPEG_INTERNALS

Definition at line 11 of file jdcolor.c.

#define ONE_HALF   ((INT32) 1 << (SCALEBITS-1))

Definition at line 61 of file jdcolor.c.

Referenced by build_ycc_rgb_table().

#define SCALEBITS   16

Definition at line 60 of file jdcolor.c.

Referenced by build_ycc_rgb_table(), ycc_rgb_convert(), and ycck_cmyk_convert().

---

Typedef Documentation

typedef my_color_deconverter* my_cconvert_ptr

Definition at line 28 of file jdcolor.c.

---

Function Documentation

build_ycc_rgb_table

(

j_decompress_ptr

cinfo

)

Definition at line 70 of file jdcolor.c.

References CENTERJSAMPLE, FIX, i, int, JPOOL_IMAGE, MAXJSAMPLE, ONE_HALF, RIGHT_SHIFT, SCALEBITS, SHIFT_TEMPS, SIZEOF, and x.

Referenced by jinit_color_deconverter(), and jinit_merged_upsampler().

gray_rgb_convert	(	j_decompress_ptr	cinfo,
		JSAMPIMAGE	input_buf,
		JDIMENSION	input_row,
		JSAMPARRAY	output_buf,
		int	num_rows
	)

Definition at line 217 of file jdcolor.c.

References num_cols, RGB_BLUE, RGB_GREEN, RGB_PIXELSIZE, and RGB_RED.

Referenced by jinit_color_deconverter().

grayscale_convert	(	j_decompress_ptr	cinfo,
		JSAMPIMAGE	input_buf,
		JDIMENSION	input_row,
		JSAMPARRAY	output_buf,
		int	num_rows
	)

Definition at line 201 of file jdcolor.c.

References jcopy_sample_rows().

jinit_color_deconverter

(

j_decompress_ptr

cinfo

)

Definition at line 304 of file jdcolor.c.

References build_ycc_rgb_table(), ERREXIT, FALSE, gray_rgb_convert(), grayscale_convert(), JCS_CMYK, JCS_GRAYSCALE, JCS_RGB, JCS_YCbCr, JCS_YCCK, JPOOL_IMAGE, null_convert(), my_color_converter::pub, RGB_PIXELSIZE, SIZEOF, start_pass_dcolor(), ycc_rgb_convert(), and ycck_cmyk_convert().

Referenced by master_selection().

null_convert	(	j_decompress_ptr	cinfo,
		JSAMPIMAGE	input_buf,
		JDIMENSION	input_row,
		JSAMPARRAY	output_buf,
		int	num_rows
	)

Definition at line 169 of file jdcolor.c.

References num_cols.

start_pass_dcolor

(

j_decompress_ptr

cinfo

)

Definition at line 293 of file jdcolor.c.

Referenced by jinit_color_deconverter().

ycc_rgb_convert	(	j_decompress_ptr	cinfo,
		JSAMPIMAGE	input_buf,
		JDIMENSION	input_row,
		JSAMPARRAY	output_buf,
		int	num_rows
	)

Definition at line 120 of file jdcolor.c.

References GETJSAMPLE, int, num_cols, RGB_BLUE, RGB_GREEN, RGB_PIXELSIZE, RGB_RED, RIGHT_SHIFT, SCALEBITS, SHIFT_TEMPS, and y.

Referenced by jinit_color_deconverter().

ycck_cmyk_convert	(	j_decompress_ptr	cinfo,
		JSAMPIMAGE	input_buf,
		JDIMENSION	input_row,
		JSAMPARRAY	output_buf,
		int	num_rows
	)

Definition at line 245 of file jdcolor.c.

References GETJSAMPLE, int, MAXJSAMPLE, num_cols, RIGHT_SHIFT, SCALEBITS, SHIFT_TEMPS, and y.

Referenced by jinit_color_deconverter().