Atmel Software Framework

jccolor.c File Reference
#include "jinclude.h"
#include "jpeglib.h"

Data Structures

struct  my_color_converter
 

Macros

#define B_CB_OFF   (5*(MAXJSAMPLE+1))
 
#define B_CR_OFF   (7*(MAXJSAMPLE+1))
 
#define B_Y_OFF   (2*(MAXJSAMPLE+1)) /* etc. */
 
#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)) /* offset to G => Y section */
 
#define JPEG_INTERNALS
 
#define ONE_HALF   ((INT32) 1 << (SCALEBITS-1))
 
#define R_CB_OFF   (3*(MAXJSAMPLE+1))
 
#define R_CR_OFF   B_CB_OFF /* B=>Cb, R=>Cr are the same */
 
#define R_Y_OFF   0 /* offset to R => Y section */
 
#define SCALEBITS   16 /* speediest right-shift on some machines */
 
#define TABLE_SIZE   (8*(MAXJSAMPLE+1))
 

Typedefs

typedef my_color_convertermy_cconvert_ptr
 

Functions

 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)
 

#define B_CB_OFF   (5*(MAXJSAMPLE+1))
#define B_CR_OFF   (7*(MAXJSAMPLE+1))
#define B_Y_OFF   (2*(MAXJSAMPLE+1)) /* etc. */
#define CBCR_OFFSET   ((INT32) CENTERJSAMPLE << SCALEBITS)

Referenced by rgb_ycc_start().

#define FIX (   x)    ((INT32) ((x) * (1L<<SCALEBITS) + 0.5))

Referenced by rgb_ycc_start().

#define G_CB_OFF   (4*(MAXJSAMPLE+1))
#define G_CR_OFF   (6*(MAXJSAMPLE+1))
#define G_Y_OFF   (1*(MAXJSAMPLE+1)) /* offset to G => Y section */
#define JPEG_INTERNALS
#define ONE_HALF   ((INT32) 1 << (SCALEBITS-1))

Referenced by rgb_ycc_start().

#define R_CB_OFF   (3*(MAXJSAMPLE+1))
#define R_CR_OFF   B_CB_OFF /* B=>Cb, R=>Cr are the same */
#define R_Y_OFF   0 /* offset to R => Y section */
#define SCALEBITS   16 /* speediest right-shift on some machines */
#define TABLE_SIZE   (8*(MAXJSAMPLE+1))

Referenced by rgb_ycc_start().

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)

Referenced by jinit_color_converter().

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 
)