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jquant1.cpp File Reference
#include "jinclude.h"
#include "mrpt_jpeglib.h"
#include <mrpt/utils/mrpt_macros.h>
Include dependency graph for jquant1.cpp:

Go to the source code of this file.

Classes

struct  my_cquantizer
 

Macros

#define JPEG_INTERNALS
 
#define ODITHER_SIZE   16 /* dimension of dither matrix */
 
#define ODITHER_CELLS   (ODITHER_SIZE*ODITHER_SIZE) /* # cells in matrix */
 
#define ODITHER_MASK   (ODITHER_SIZE-1) /* mask for wrapping around counters */
 
#define MAX_Q_COMPS   4 /* max components I can handle */
 

Typedefs

typedef int ODITHER_MATRIX [ODITHER_SIZE][ODITHER_SIZE]
 
typedef int(* ODITHER_MATRIX_PTR )[ODITHER_SIZE]
 
typedef INT16 FSERROR
 
typedef int LOCFSERROR
 
typedef FSERROR FARFSERRPTR
 
typedef my_cquantizermy_cquantize_ptr
 

Functions

 select_ncolors (j_decompress_ptr cinfo, int Ncolors[])
 
 output_value (j_decompress_ptr cinfo, int ci, int j, int maxj)
 
 largest_input_value (j_decompress_ptr cinfo, int ci, int j, int maxj)
 
 create_colormap (j_decompress_ptr cinfo)
 
 create_colorindex (j_decompress_ptr cinfo)
 
 make_odither_array (j_decompress_ptr cinfo, int ncolors)
 
 create_odither_tables (j_decompress_ptr cinfo)
 
 color_quantize (j_decompress_ptr cinfo, JSAMPARRAY input_buf, JSAMPARRAY output_buf, int num_rows)
 
 color_quantize3 (j_decompress_ptr cinfo, JSAMPARRAY input_buf, JSAMPARRAY output_buf, int num_rows)
 
 quantize_ord_dither (j_decompress_ptr cinfo, JSAMPARRAY input_buf, JSAMPARRAY output_buf, int num_rows)
 
 quantize3_ord_dither (j_decompress_ptr cinfo, JSAMPARRAY input_buf, JSAMPARRAY output_buf, int num_rows)
 
 quantize_fs_dither (j_decompress_ptr cinfo, JSAMPARRAY input_buf, JSAMPARRAY output_buf, int num_rows)
 
 alloc_fs_workspace (j_decompress_ptr cinfo)
 
 start_pass_1_quant (j_decompress_ptr cinfo, boolean is_pre_scan)
 
 finish_pass_1_quant (j_decompress_ptr)
 
 new_color_map_1_quant (j_decompress_ptr cinfo)
 
 jinit_1pass_quantizer (j_decompress_ptr cinfo)
 

Variables

static const UINT8 base_dither_matrix [ODITHER_SIZE][ODITHER_SIZE]
 

Macro Definition Documentation

#define JPEG_INTERNALS

Definition at line 10 of file jquant1.cpp.

#define MAX_Q_COMPS   4 /* max components I can handle */

Definition at line 138 of file jquant1.cpp.

Referenced by jinit_1pass_quantizer().

#define ODITHER_CELLS   (ODITHER_SIZE*ODITHER_SIZE) /* # cells in matrix */

Definition at line 71 of file jquant1.cpp.

Referenced by make_odither_array().

#define ODITHER_MASK   (ODITHER_SIZE-1) /* mask for wrapping around counters */

Definition at line 72 of file jquant1.cpp.

Referenced by quantize3_ord_dither(), and quantize_ord_dither().

#define ODITHER_SIZE   16 /* dimension of dither matrix */

Definition at line 69 of file jquant1.cpp.

Referenced by make_odither_array().

Typedef Documentation

typedef INT16 FSERROR

Definition at line 126 of file jquant1.cpp.

typedef FSERROR FAR* FSERRPTR

Definition at line 133 of file jquant1.cpp.

typedef int LOCFSERROR

Definition at line 127 of file jquant1.cpp.

Definition at line 165 of file jquant1.cpp.

typedef int ODITHER_MATRIX[ODITHER_SIZE][ODITHER_SIZE]

Definition at line 74 of file jquant1.cpp.

typedef int(* ODITHER_MATRIX_PTR)[ODITHER_SIZE]

Definition at line 75 of file jquant1.cpp.

Function Documentation

alloc_fs_workspace ( j_decompress_ptr  cinfo)

Definition at line 722 of file jquant1.cpp.

References my_cquantizer::fserrors, JPOOL_IMAGE, and SIZEOF.

Referenced by jinit_1pass_quantizer(), and start_pass_1_quant().

color_quantize ( j_decompress_ptr  cinfo,
JSAMPARRAY  input_buf,
JSAMPARRAY  output_buf,
int  num_rows 
)

Definition at line 459 of file jquant1.cpp.

References my_cquantizer::colorindex, GETJSAMPLE, and num_rows.

Referenced by start_pass_1_quant().

color_quantize3 ( j_decompress_ptr  cinfo,
JSAMPARRAY  input_buf,
JSAMPARRAY  output_buf,
int  num_rows 
)

Definition at line 487 of file jquant1.cpp.

References my_cquantizer::colorindex, GETJSAMPLE, and num_rows.

Referenced by start_pass_1_quant().

create_colorindex ( j_decompress_ptr  cinfo)
create_colormap ( j_decompress_ptr  cinfo)
create_odither_tables ( j_decompress_ptr  cinfo)

Definition at line 432 of file jquant1.cpp.

References make_odither_array(), my_cquantizer::Ncolors, and my_cquantizer::odither.

Referenced by start_pass_1_quant().

finish_pass_1_quant ( j_decompress_ptr  )

Definition at line 799 of file jquant1.cpp.

Referenced by jinit_1pass_quantizer().

jinit_1pass_quantizer ( j_decompress_ptr  cinfo)
largest_input_value ( j_decompress_ptr  cinfo,
int  ci,
int  j,
int  maxj 
)

Definition at line 258 of file jquant1.cpp.

References MAXJSAMPLE, and MRPT_UNUSED_PARAM.

Referenced by create_colorindex().

make_odither_array ( j_decompress_ptr  cinfo,
int  ncolors 
)

Definition at line 396 of file jquant1.cpp.

References base_dither_matrix, int(), JPOOL_IMAGE, MAXJSAMPLE, ODITHER_CELLS, ODITHER_SIZE, and SIZEOF.

Referenced by create_odither_tables().

new_color_map_1_quant ( j_decompress_ptr  cinfo)

Definition at line 811 of file jquant1.cpp.

References ERREXIT.

Referenced by jinit_1pass_quantizer().

output_value ( j_decompress_ptr  cinfo,
int  ci,
int  j,
int  maxj 
)

Definition at line 243 of file jquant1.cpp.

References MAXJSAMPLE, and MRPT_UNUSED_PARAM.

Referenced by create_colormap().

quantize3_ord_dither ( j_decompress_ptr  cinfo,
JSAMPARRAY  input_buf,
JSAMPARRAY  output_buf,
int  num_rows 
)
quantize_fs_dither ( j_decompress_ptr  cinfo,
JSAMPARRAY  input_buf,
JSAMPARRAY  output_buf,
int  num_rows 
)
quantize_ord_dither ( j_decompress_ptr  cinfo,
JSAMPARRAY  input_buf,
JSAMPARRAY  output_buf,
int  num_rows 
)
select_ncolors ( j_decompress_ptr  cinfo,
int  Ncolors[] 
)

Definition at line 184 of file jquant1.cpp.

References ERREXIT1, FALSE, int(), JCS_RGB, and TRUE.

Referenced by create_colormap().

start_pass_1_quant ( j_decompress_ptr  cinfo,
boolean  is_pre_scan 
)

Variable Documentation

const UINT8 base_dither_matrix[ODITHER_SIZE][ODITHER_SIZE]
static
Initial value:
= {
{ 0,192, 48,240, 12,204, 60,252, 3,195, 51,243, 15,207, 63,255 },
{ 128, 64,176,112,140, 76,188,124,131, 67,179,115,143, 79,191,127 },
{ 32,224, 16,208, 44,236, 28,220, 35,227, 19,211, 47,239, 31,223 },
{ 160, 96,144, 80,172,108,156, 92,163, 99,147, 83,175,111,159, 95 },
{ 8,200, 56,248, 4,196, 52,244, 11,203, 59,251, 7,199, 55,247 },
{ 136, 72,184,120,132, 68,180,116,139, 75,187,123,135, 71,183,119 },
{ 40,232, 24,216, 36,228, 20,212, 43,235, 27,219, 39,231, 23,215 },
{ 168,104,152, 88,164,100,148, 84,171,107,155, 91,167,103,151, 87 },
{ 2,194, 50,242, 14,206, 62,254, 1,193, 49,241, 13,205, 61,253 },
{ 130, 66,178,114,142, 78,190,126,129, 65,177,113,141, 77,189,125 },
{ 34,226, 18,210, 46,238, 30,222, 33,225, 17,209, 45,237, 29,221 },
{ 162, 98,146, 82,174,110,158, 94,161, 97,145, 81,173,109,157, 93 },
{ 10,202, 58,250, 6,198, 54,246, 9,201, 57,249, 5,197, 53,245 },
{ 138, 74,186,122,134, 70,182,118,137, 73,185,121,133, 69,181,117 },
{ 42,234, 26,218, 38,230, 22,214, 41,233, 25,217, 37,229, 21,213 },
{ 170,106,154, 90,166,102,150, 86,169,105,153, 89,165,101,149, 85 }
}

Definition at line 77 of file jquant1.cpp.

Referenced by make_odither_array().




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