Referencia del Archivo src/qt/src/3rdparty/libjpeg/jccolor.c

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

Clases
struct	my_color_converter
'defines'
#define	JPEG_INTERNALS
#define	SCALEBITS   16
#define	CBCR_OFFSET   ((INT32) CENTERJSAMPLE << SCALEBITS)
#define	ONE_HALF   ((INT32) 1 << (SCALEBITS-1))
#define	FIX(x)   ((INT32) ((x) * (1L<<SCALEBITS) + 0.5))
#define	R_Y_OFF   0
#define	G_Y_OFF   (1*(MAXJSAMPLE+1))
#define	B_Y_OFF   (2*(MAXJSAMPLE+1))
#define	R_CB_OFF   (3*(MAXJSAMPLE+1))
#define	G_CB_OFF   (4*(MAXJSAMPLE+1))
#define	B_CB_OFF   (5*(MAXJSAMPLE+1))
#define	R_CR_OFF   B_CB_OFF
#define	G_CR_OFF   (6*(MAXJSAMPLE+1))
#define	B_CR_OFF   (7*(MAXJSAMPLE+1))
#define	TABLE_SIZE   (8*(MAXJSAMPLE+1))
'typedefs'
typedef my_color_converter *	my_cconvert_ptr
Funciones
	rgb_ycc_start (j_compress_ptr cinfo)
	rgb_ycc_convert (j_compress_ptr cinfo, JSAMPARRAY input_buf, JSAMPIMAGE output_buf, JDIMENSION output_row, int num_rows)
	rgb_gray_convert (j_compress_ptr cinfo, JSAMPARRAY input_buf, JSAMPIMAGE output_buf, JDIMENSION output_row, int num_rows)
	cmyk_ycck_convert (j_compress_ptr cinfo, JSAMPARRAY input_buf, JSAMPIMAGE output_buf, JDIMENSION output_row, int num_rows)
	grayscale_convert (j_compress_ptr cinfo, JSAMPARRAY input_buf, JSAMPIMAGE output_buf, JDIMENSION output_row, int num_rows)
	null_convert (j_compress_ptr cinfo, JSAMPARRAY input_buf, JSAMPIMAGE output_buf, JDIMENSION output_row, int num_rows)
	null_method (j_compress_ptr cinfo)
	jinit_color_converter (j_compress_ptr cinfo)

---

Documentación de los 'defines'

#define B_CB_OFF   (5*(MAXJSAMPLE+1))

#define B_CR_OFF   (7*(MAXJSAMPLE+1))

#define B_Y_OFF   (2*(MAXJSAMPLE+1))

#define CBCR_OFFSET   ((INT32) CENTERJSAMPLE << SCALEBITS)

#define FIX

(

x

)

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

#define G_CB_OFF   (4*(MAXJSAMPLE+1))

#define G_CR_OFF   (6*(MAXJSAMPLE+1))

#define G_Y_OFF   (1*(MAXJSAMPLE+1))

#define JPEG_INTERNALS

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

#define R_CB_OFF   (3*(MAXJSAMPLE+1))

#define R_CR_OFF   B_CB_OFF

#define R_Y_OFF   0

#define SCALEBITS   16

#define TABLE_SIZE   (8*(MAXJSAMPLE+1))

---

Documentación de los 'typedefs'

typedef my_color_converter* my_cconvert_ptr

---

Documentación de las funciones

cmyk_ycck_convert	(	j_compress_ptr	cinfo,
		JSAMPARRAY	input_buf,
		JSAMPIMAGE	output_buf,
		JDIMENSION	output_row,
		int	num_rows
	)

grayscale_convert	(	j_compress_ptr	cinfo,
		JSAMPARRAY	input_buf,
		JSAMPIMAGE	output_buf,
		JDIMENSION	output_row,
		int	num_rows
	)

jinit_color_converter

(

j_compress_ptr

cinfo

)

null_convert	(	j_compress_ptr	cinfo,
		JSAMPARRAY	input_buf,
		JSAMPIMAGE	output_buf,
		JDIMENSION	output_row,
		int	num_rows
	)

null_method

(

j_compress_ptr

cinfo

)

rgb_gray_convert	(	j_compress_ptr	cinfo,
		JSAMPARRAY	input_buf,
		JSAMPIMAGE	output_buf,
		JDIMENSION	output_row,
		int	num_rows
	)

rgb_ycc_convert	(	j_compress_ptr	cinfo,
		JSAMPARRAY	input_buf,
		JSAMPIMAGE	output_buf,
		JDIMENSION	output_row,
		int	num_rows
	)

rgb_ycc_start

(

j_compress_ptr

cinfo

)