jdcolor.c File Reference

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

Data Structures
struct	my_color_deconverter

Macros
#define	FIX(x)   ((INT32) ((x) * (1L<<SCALEBITS) + 0.5))
#define	JPEG_INTERNALS
#define	ONE_HALF   ((INT32) 1 << (SCALEBITS-1))
#define	SCALEBITS   16 /* speediest right-shift on some machines */

Typedefs
typedef my_color_deconverter *	my_cconvert_ptr

Functions
	build_ycc_rgb_table (j_decompress_ptr cinfo)
	gray_rgb_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)
	jinit_color_deconverter (j_decompress_ptr cinfo)
	null_convert (j_decompress_ptr cinfo, JSAMPIMAGE input_buf, JDIMENSION input_row, JSAMPARRAY output_buf, int num_rows)
	start_pass_dcolor (j_decompress_ptr cinfo)
	ycc_rgb565_convert (j_decompress_ptr cinfo, JSAMPIMAGE input_buf, JDIMENSION input_row, JSAMPARRAY output_buf, int num_rows)
	ycc_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)

Variables
unsigned short int *	jpeg_out_buffer_pos

#define FIX

(

x

)

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

Referenced by build_ycc_rgb_table().

#define JPEG_INTERNALS

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

Referenced by build_ycc_rgb_table().

#define SCALEBITS   16 /* speediest right-shift on some machines */

Referenced by build_ycc_rgb_table(), ycc_rgb565_convert(), ycc_rgb_convert(), and ycck_cmyk_convert().

typedef my_color_deconverter* my_cconvert_ptr

build_ycc_rgb_table

(

j_decompress_ptr

cinfo

)

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

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

References col, inptr, num_cols, and outptr.

Referenced by jinit_color_deconverter().

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

References jcopy_sample_rows().

jinit_color_deconverter

(

j_decompress_ptr

cinfo

)

References build_ycc_rgb_table(), ci, ERREXIT, FALSE, gray_rgb_convert(), grayscale_convert(), JCS_CMYK, JCS_GRAYSCALE, JCS_RGB, JCS_RGB565, JCS_YCbCr, JCS_YCCK, JPOOL_IMAGE, null_convert(), my_color_converter::pub, SIZEOF, start_pass_dcolor(), ycc_rgb565_convert(), 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
	)

References ci, count, inptr, num_cols, and outptr.

start_pass_dcolor

(

j_decompress_ptr

cinfo

)

Referenced by jinit_color_deconverter().

ycc_rgb565_convert	(	j_decompress_ptr	cinfo,
		JSAMPIMAGE	input_buf,
		JDIMENSION	input_row,
		JSAMPARRAY	output_buf,
		int	num_rows
	)

References cb, col, GETJSAMPLE, jpeg_out_buffer_pos, num_cols, RIGHT_SHIFT, SCALEBITS, SHIFT_TEMPS, while(), and y.

Referenced by jinit_color_deconverter().

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

References cb, col, GETJSAMPLE, num_cols, outptr, RIGHT_SHIFT, SCALEBITS, SHIFT_TEMPS, while(), 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
	)

References cb, col, GETJSAMPLE, MAXJSAMPLE, num_cols, outptr, RIGHT_SHIFT, SCALEBITS, SHIFT_TEMPS, while(), and y.

Referenced by jinit_color_deconverter().

unsigned short int* jpeg_out_buffer_pos

Referenced by ycc_rgb565_convert().