jccolor.c File Reference

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

Go to the source code of this file.

Data Structures
struct	my_color_converter
Defines
#define	JPEG_INTERNALS
#define	SCALEBITS   16 /* speediest right-shift on some machines */
#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 /* offset to R => Y section */
#define	G_Y_OFF   (1*(MAXJSAMPLE+1)) /* offset to G => Y section */
#define	B_Y_OFF   (2*(MAXJSAMPLE+1)) /* etc. */
#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 /* B=>Cb, R=>Cr are the same */
#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
Functions
	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)