fltk 1.3.0rc3
About: FLTK (Fast Light Tool Kit) is a cross-platform C++ GUI toolkit for UNIX/Linux (X11), Microsoft Windows, and MacOS X. Release candidate.
  SfR Fresh Dox: fltk-1.3.0rc3-source.tar.gz ("inofficial" and yet experimental doxygen-generated source code documentation)  
Classes | Defines | Typedefs | Functions

jccolor.c File Reference

#include "jinclude.h"
#include "jpeglib.h"
Include dependency graph for jccolor.c:

Go to the source code of this file.

Classes

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

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)

Define Documentation

#define B_CB_OFF   (5*(MAXJSAMPLE+1))

Definition at line 74 of file jccolor.c.

Referenced by cmyk_ycck_convert(), rgb_ycc_convert(), and rgb_ycc_start().

#define B_CR_OFF   (7*(MAXJSAMPLE+1))

Definition at line 77 of file jccolor.c.

Referenced by cmyk_ycck_convert(), rgb_ycc_convert(), and rgb_ycc_start().

#define B_Y_OFF   (2*(MAXJSAMPLE+1))

Definition at line 71 of file jccolor.c.

Referenced by cmyk_ycck_convert(), rgb_gray_convert(), rgb_ycc_convert(), and rgb_ycc_start().

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

Definition at line 59 of file jccolor.c.

Referenced by rgb_ycc_start().

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

Definition at line 61 of file jccolor.c.

Referenced by rgb_ycc_start().

#define G_CB_OFF   (4*(MAXJSAMPLE+1))

Definition at line 73 of file jccolor.c.

Referenced by cmyk_ycck_convert(), rgb_ycc_convert(), and rgb_ycc_start().

#define G_CR_OFF   (6*(MAXJSAMPLE+1))

Definition at line 76 of file jccolor.c.

Referenced by cmyk_ycck_convert(), rgb_ycc_convert(), and rgb_ycc_start().

#define G_Y_OFF   (1*(MAXJSAMPLE+1))

Definition at line 70 of file jccolor.c.

Referenced by cmyk_ycck_convert(), rgb_gray_convert(), rgb_ycc_convert(), and rgb_ycc_start().

#define JPEG_INTERNALS

Definition at line 11 of file jccolor.c.

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

Definition at line 60 of file jccolor.c.

Referenced by rgb_ycc_start().

#define R_CB_OFF   (3*(MAXJSAMPLE+1))

Definition at line 72 of file jccolor.c.

Referenced by cmyk_ycck_convert(), rgb_ycc_convert(), and rgb_ycc_start().

#define R_CR_OFF   B_CB_OFF

Definition at line 75 of file jccolor.c.

Referenced by cmyk_ycck_convert(), and rgb_ycc_convert().

#define R_Y_OFF   0

Definition at line 69 of file jccolor.c.

Referenced by cmyk_ycck_convert(), rgb_gray_convert(), rgb_ycc_convert(), and rgb_ycc_start().

#define SCALEBITS   16

Definition at line 58 of file jccolor.c.

Referenced by cmyk_ycck_convert(), rgb_gray_convert(), and rgb_ycc_convert().

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

Definition at line 78 of file jccolor.c.

Referenced by rgb_ycc_start().

Typedef Documentation

typedef my_color_converter* my_cconvert_ptr

Definition at line 25 of file jccolor.c.

Function Documentation

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

Definition at line 225 of file jccolor.c.

References b, B_CB_OFF, B_CR_OFF, B_Y_OFF, G_CB_OFF, G_CR_OFF, G_Y_OFF, GETJSAMPLE, MAXJSAMPLE, num_cols, output_row, R_CB_OFF, R_CR_OFF, R_Y_OFF, my_color_converter::rgb_ycc_tab, and SCALEBITS.

Referenced by jinit_color_converter().

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

Definition at line 280 of file jccolor.c.

References num_cols, and output_row.

Referenced by jinit_color_converter(), and jinit_color_deconverter().

jinit_color_converter ( j_compress_ptr  cinfo)

Definition at line 352 of file jccolor.c.

References cmyk_ycck_convert(), ERREXIT, grayscale_convert(), JCS_CMYK, JCS_GRAYSCALE, JCS_RGB, JCS_YCbCr, JCS_YCCK, JPOOL_IMAGE, null_convert(), null_method(), my_color_converter::pub, rgb_gray_convert(), RGB_PIXELSIZE, rgb_ycc_convert(), rgb_ycc_start(), and SIZEOF.

Referenced by jinit_compress_master().

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

Definition at line 309 of file jccolor.c.

References num_cols, and output_row.

Referenced by jinit_color_converter(), and jinit_color_deconverter().

null_method ( j_compress_ptr  cinfo)

Definition at line 341 of file jccolor.c.

Referenced by jinit_color_converter().

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

Definition at line 186 of file jccolor.c.

References b, B_Y_OFF, G_Y_OFF, GETJSAMPLE, num_cols, output_row, R_Y_OFF, RGB_BLUE, RGB_GREEN, RGB_PIXELSIZE, RGB_RED, my_color_converter::rgb_ycc_tab, and SCALEBITS.

Referenced by jinit_color_converter().

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

Definition at line 130 of file jccolor.c.

References b, B_CB_OFF, B_CR_OFF, B_Y_OFF, G_CB_OFF, G_CR_OFF, G_Y_OFF, GETJSAMPLE, num_cols, output_row, R_CB_OFF, R_CR_OFF, R_Y_OFF, RGB_BLUE, RGB_GREEN, RGB_PIXELSIZE, RGB_RED, my_color_converter::rgb_ycc_tab, and SCALEBITS.

Referenced by jinit_color_converter().

rgb_ycc_start ( j_compress_ptr  cinfo)

Definition at line 86 of file jccolor.c.

References B_CB_OFF, B_CR_OFF, B_Y_OFF, CBCR_OFFSET, FIX, G_CB_OFF, G_CR_OFF, G_Y_OFF, i, JPOOL_IMAGE, MAXJSAMPLE, ONE_HALF, R_CB_OFF, R_Y_OFF, my_color_converter::rgb_ycc_tab, SIZEOF, and TABLE_SIZE.

Referenced by jinit_color_converter().