#include "jinclude.h"
#include "mrpt_jpeglib.h"
#include <mrpt/utils/mrpt_macros.h>

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

#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 FAR *	FSERRPTR

typedef my_cquantizer *	my_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

◆ JPEG_INTERNALS

#define JPEG_INTERNALS

Definition at line 10 of file jquant1.cpp.

◆ MAX_Q_COMPS

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

Definition at line 134 of file jquant1.cpp.

◆ ODITHER_CELLS

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

Definition at line 69 of file jquant1.cpp.

◆ ODITHER_MASK

#define ODITHER_MASK

Value:

(ODITHER_SIZE - 1) /* mask for wrapping around counters \

*/

ODITHER_SIZE

#define ODITHER_SIZE

Definition: jquant1.cpp:67

Definition at line 70 of file jquant1.cpp.

◆ ODITHER_SIZE

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

Definition at line 67 of file jquant1.cpp.

Typedef Documentation

◆ FSERROR

typedef INT16 FSERROR

Definition at line 123 of file jquant1.cpp.

◆ FSERRPTR

typedef FSERROR FAR* FSERRPTR

Definition at line 130 of file jquant1.cpp.

◆ LOCFSERROR

typedef int LOCFSERROR

Definition at line 124 of file jquant1.cpp.

◆ my_cquantize_ptr

typedef my_cquantizer* my_cquantize_ptr

Definition at line 164 of file jquant1.cpp.

◆ ODITHER_MATRIX

typedef int ODITHER_MATRIX[ODITHER_SIZE][ODITHER_SIZE]

Definition at line 73 of file jquant1.cpp.

◆ ODITHER_MATRIX_PTR

typedef int(* ODITHER_MATRIX_PTR)[ODITHER_SIZE]

Definition at line 74 of file jquant1.cpp.

Function Documentation

◆ alloc_fs_workspace()

alloc_fs_workspace ( j_decompress_ptr cinfo )

Definition at line 763 of file jquant1.cpp.

References jpeg_decompress_struct::cquantize, my_cquantizer::fserrors, JPOOL_IMAGE, jpeg_decompress_struct::out_color_components, jpeg_decompress_struct::output_width, and SIZEOF.

Referenced by start_pass_1_quant().

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◆ color_quantize()

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

Definition at line 469 of file jquant1.cpp.

References my_cquantizer::colorindex, jpeg_decompress_struct::cquantize, for(), GETJSAMPLE, jpeg_decompress_struct::out_color_components, output_buf, and jpeg_decompress_struct::output_width.

Referenced by start_pass_1_quant().

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◆ color_quantize3()

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

Definition at line 500 of file jquant1.cpp.

References my_cquantizer::colorindex, jpeg_decompress_struct::cquantize, for(), GETJSAMPLE, output_buf, and jpeg_decompress_struct::output_width.

Referenced by start_pass_1_quant().

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◆ create_colorindex()

create_colorindex ( j_decompress_ptr cinfo )

Definition at line 335 of file jquant1.cpp.

References my_cquantizer::colorindex, jpeg_decompress_struct::cquantize, jpeg_decompress_struct::dither_mode, FALSE, my_cquantizer::is_padded, JDITHER_ORDERED, JPOOL_IMAGE, largest_input_value(), MAXJSAMPLE, my_cquantizer::Ncolors, jpeg_decompress_struct::out_color_components, my_cquantizer::sv_actual, TRUE, and val.

Referenced by start_pass_1_quant().

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◆ create_colormap()

create_colormap ( j_decompress_ptr cinfo )

Definition at line 271 of file jquant1.cpp.

References mrpt::utils::colormap(), jpeg_decompress_struct::cquantize, JPOOL_IMAGE, my_cquantizer::Ncolors, jpeg_decompress_struct::out_color_components, output_value(), select_ncolors(), my_cquantizer::sv_actual, my_cquantizer::sv_colormap, TRACEMS1, TRACEMS4, and val.

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◆ create_odither_tables()

create_odither_tables ( j_decompress_ptr cinfo )

Definition at line 440 of file jquant1.cpp.

References jpeg_decompress_struct::cquantize, for(), make_odither_array(), my_cquantizer::Ncolors, my_cquantizer::odither, and jpeg_decompress_struct::out_color_components.

Referenced by start_pass_1_quant().

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◆ finish_pass_1_quant()

finish_pass_1_quant ( j_decompress_ptr )

Definition at line 837 of file jquant1.cpp.

◆ jinit_1pass_quantizer()

jinit_1pass_quantizer ( j_decompress_ptr cinfo )

Definition at line 854 of file jquant1.cpp.

Referenced by master_selection().

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◆ largest_input_value()

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

Definition at line 256 of file jquant1.cpp.

References MAXJSAMPLE, and MRPT_UNUSED_PARAM.

Referenced by create_colorindex().

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◆ make_odither_array()

make_odither_array	(	j_decompress_ptr	cinfo,
		int	ncolors
	)

Definition at line 402 of file jquant1.cpp.

References base_dither_matrix, JPOOL_IMAGE, MAXJSAMPLE, ODITHER_CELLS, ODITHER_SIZE, and SIZEOF.

Referenced by create_odither_tables().

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◆ new_color_map_1_quant()

new_color_map_1_quant ( j_decompress_ptr cinfo )

Definition at line 844 of file jquant1.cpp.

References ERREXIT.

◆ output_value()

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

Definition at line 241 of file jquant1.cpp.

References MAXJSAMPLE, and MRPT_UNUSED_PARAM.

Referenced by create_colormap().

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◆ quantize3_ord_dither()

quantize3_ord_dither	(	j_decompress_ptr	cinfo,
		JSAMPARRAY	input_buf,
		JSAMPARRAY	output_buf,
		int	num_rows
	)

Definition at line 587 of file jquant1.cpp.

References my_cquantizer::colorindex, jpeg_decompress_struct::cquantize, for(), GETJSAMPLE, my_cquantizer::odither, ODITHER_MASK, output_buf, jpeg_decompress_struct::output_width, and my_cquantizer::row_index.

Referenced by start_pass_1_quant().

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◆ quantize_fs_dither()

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

Definition at line 634 of file jquant1.cpp.

References my_cquantizer::colorindex, jpeg_decompress_struct::cquantize, FALSE, FAR, for(), my_cquantizer::fserrors, GETJSAMPLE, jzero_far(), my_cquantizer::on_odd_row, jpeg_decompress_struct::out_color_components, output_buf, jpeg_decompress_struct::output_width, range_limit, RIGHT_SHIFT, jpeg_decompress_struct::sample_range_limit, SHIFT_TEMPS, SIZEOF, my_cquantizer::sv_colormap, and TRUE.

Referenced by start_pass_1_quant().

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◆ quantize_ord_dither()

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

Definition at line 530 of file jquant1.cpp.

References my_cquantizer::colorindex, jpeg_decompress_struct::cquantize, FAR, for(), GETJSAMPLE, jzero_far(), my_cquantizer::odither, ODITHER_MASK, jpeg_decompress_struct::out_color_components, output_buf, jpeg_decompress_struct::output_width, my_cquantizer::row_index, and SIZEOF.

Referenced by start_pass_1_quant().

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◆ select_ncolors()

select_ncolors	(	j_decompress_ptr	cinfo,
		int	Ncolors[]
	)

Definition at line 181 of file jquant1.cpp.

References jpeg_decompress_struct::desired_number_of_colors, ERREXIT1, FALSE, JCS_RGB, jpeg_decompress_struct::out_color_components, jpeg_decompress_struct::out_color_space, and TRUE.

Referenced by create_colormap().

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◆ start_pass_1_quant()

start_pass_1_quant	(	j_decompress_ptr	cinfo,
		boolean	is_pre_scan
	)

Definition at line 782 of file jquant1.cpp.

References jpeg_decompress_struct::actual_number_of_colors, alloc_fs_workspace(), color_quantize(), color_quantize3(), jpeg_decompress_struct::colormap, jpeg_decompress_struct::cquantize, create_colorindex(), create_odither_tables(), jpeg_decompress_struct::dither_mode, ERREXIT, FALSE, FAR, my_cquantizer::fserrors, my_cquantizer::is_padded, JDITHER_FS, JDITHER_NONE, JDITHER_ORDERED, jzero_far(), MRPT_UNUSED_PARAM, my_cquantizer::odither, my_cquantizer::on_odd_row, jpeg_decompress_struct::out_color_components, jpeg_decompress_struct::output_width, my_cquantizer::pub, quantize3_ord_dither(), quantize_fs_dither(), quantize_ord_dither(), my_cquantizer::row_index, SIZEOF, my_cquantizer::sv_actual, and my_cquantizer::sv_colormap.

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Variable Documentation

◆ base_dither_matrix

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 76 of file jquant1.cpp.

Referenced by make_odither_array().

Classes

Macros

Typedefs

Functions

Variables

Macro Definition Documentation

◆ JPEG_INTERNALS

◆ MAX_Q_COMPS

◆ ODITHER_CELLS

◆ ODITHER_MASK

◆ ODITHER_SIZE

Typedef Documentation

◆ FSERROR

◆ FSERRPTR

◆ LOCFSERROR

◆ my_cquantize_ptr

◆ ODITHER_MATRIX

◆ ODITHER_MATRIX_PTR

Function Documentation

◆ alloc_fs_workspace()

◆ color_quantize()

◆ color_quantize3()

◆ create_colorindex()

◆ create_colormap()

◆ create_odither_tables()

◆ finish_pass_1_quant()

◆ jinit_1pass_quantizer()

◆ largest_input_value()

◆ make_odither_array()

◆ new_color_map_1_quant()

◆ output_value()

◆ quantize3_ord_dither()

◆ quantize_fs_dither()

◆ quantize_ord_dither()

◆ select_ncolors()

◆ start_pass_1_quant()

Variable Documentation

◆ base_dither_matrix