jquant1.c File Reference

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

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Classes
struct	my_cquantizer
Defines
#define	JPEG_INTERNALS
#define	ODITHER_SIZE   16
#define	ODITHER_CELLS   (ODITHER_SIZE*ODITHER_SIZE)
#define	ODITHER_MASK   (ODITHER_SIZE-1)
#define	MAX_Q_COMPS   4
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 cinfo)
	new_color_map_1_quant (j_decompress_ptr cinfo)
	jinit_1pass_quantizer (j_decompress_ptr cinfo)

---

Define Documentation

#define JPEG_INTERNALS

#define MAX_Q_COMPS   4

#define ODITHER_CELLS   (ODITHER_SIZE*ODITHER_SIZE)

#define ODITHER_MASK   (ODITHER_SIZE-1)

#define ODITHER_SIZE   16

---

Typedef Documentation

typedef INT16 FSERROR

typedef FSERROR FAR* FSERRPTR

typedef int LOCFSERROR

typedef my_cquantizer* my_cquantize_ptr

typedef int ODITHER_MATRIX[ODITHER_SIZE][ODITHER_SIZE]

typedef int(* ODITHER_MATRIX_PTR)[ODITHER_SIZE]

---

Function Documentation

alloc_fs_workspace

(

j_decompress_ptr

cinfo

)

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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
	)

create_colorindex

(

j_decompress_ptr

cinfo

)

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create_colormap

(

j_decompress_ptr

cinfo

)

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create_odither_tables

(

j_decompress_ptr

cinfo

)

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finish_pass_1_quant

(

j_decompress_ptr

cinfo

)

jinit_1pass_quantizer

(

j_decompress_ptr

cinfo

)

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

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make_odither_array	(	j_decompress_ptr	cinfo,
		int	ncolors
	)

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new_color_map_1_quant

(

j_decompress_ptr

cinfo

)

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

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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
	)

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

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select_ncolors	(	j_decompress_ptr	cinfo,
		int	Ncolors[]
	)

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start_pass_1_quant	(	j_decompress_ptr	cinfo,
		boolean	is_pre_scan
	)

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