#include "jmorecfg.h"
#include "jconfig.h"

Go to the source code of this file.

Classes
struct	JQUANT_TBL

struct	JHUFF_TBL

struct	jpeg_component_info

struct	jpeg_scan_info

struct	jpeg_marker_struct

struct	jpeg_common_struct

struct	jpeg_compress_struct

struct	jpeg_decompress_struct

struct	jpeg_error_mgr

struct	jpeg_progress_mgr

struct	jpeg_destination_mgr

struct	jpeg_source_mgr

struct	jpeg_memory_mgr

Macros
#define	JPEG_LIB_VERSION 62 /* Version 6b */

#define	DCTSIZE 8 /* The basic DCT block is 8x8 samples */

#define	DCTSIZE2 64 /* DCTSIZE squared; # of elements in a block */

#define	NUM_QUANT_TBLS 4 /* Quantization tables are numbered 0..3 */

#define	NUM_HUFF_TBLS 4 /* Huffman tables are numbered 0..3 */

#define	NUM_ARITH_TBLS 16 /* Arith-coding tables are numbered 0..15 */

#define	MAX_COMPS_IN_SCAN 4 /* JPEG limit on # of components in one scan */

#define	MAX_SAMP_FACTOR 4 /* JPEG limit on sampling factors */

#define	C_MAX_BLOCKS_IN_MCU 10 /* compressor's limit on blocks per MCU */

#define	D_MAX_BLOCKS_IN_MCU 10 /* decompressor's limit on blocks per MCU */

#define	JDCT_DEFAULT JDCT_ISLOW

#define	JDCT_FASTEST JDCT_IFAST

#define	jpeg_common_fields

#define	JMSG_LENGTH_MAX 200 /* recommended size of format_message buffer */

#define	JMSG_STR_PARM_MAX 80

#define	JPOOL_PERMANENT 0 /* lasts until master record is destroyed */

#define	JPOOL_IMAGE 1 /* lasts until done with image/datastream */

#define	JPOOL_NUMPOOLS 2

#define	JPP(arglist) arglist

#define	jpeg_create_compress(cinfo)

#define	jpeg_create_decompress(cinfo)

#define	JPEG_SUSPENDED 0 /* Suspended due to lack of input data */

#define	JPEG_HEADER_OK 1 /* Found valid image datastream */

#define	JPEG_HEADER_TABLES_ONLY 2 /* Found valid table-specs-only datastream */

#define	JPEG_REACHED_SOS 1 /* Reached start of new scan */

#define	JPEG_REACHED_EOI 2 /* Reached end of image */

#define	JPEG_ROW_COMPLETED 3 /* Completed one iMCU row */

#define	JPEG_SCAN_COMPLETED 4 /* Completed last iMCU row of a scan */

#define	JPEG_RST0 0xD0 /* RST0 marker code */

#define	JPEG_EOI 0xD9 /* EOI marker code */

#define	JPEG_APP0 0xE0 /* APP0 marker code */

#define	JPEG_COM 0xFE /* COM marker code */

Typedefs
typedef JSAMPLE FAR *	JSAMPROW

typedef JSAMPROW *	JSAMPARRAY

typedef JSAMPARRAY *	JSAMPIMAGE

typedef JCOEF	JBLOCK[DCTSIZE2]

typedef JBLOCK FAR *	JBLOCKROW

typedef JBLOCKROW *	JBLOCKARRAY

typedef JBLOCKARRAY *	JBLOCKIMAGE

typedef JCOEF FAR *	JCOEFPTR

typedef struct jpeg_marker_struct FAR *	jpeg_saved_marker_ptr

typedef struct jpeg_common_struct *	j_common_ptr

typedef struct jpeg_compress_struct *	j_compress_ptr

typedef struct jpeg_decompress_struct *	j_decompress_ptr

typedef struct jvirt_sarray_control *	jvirt_sarray_ptr

typedef struct jvirt_barray_control *	jvirt_barray_ptr

Enumerations
enum	J_COLOR_SPACE { JCS_UNKNOWN, JCS_GRAYSCALE, JCS_RGB, JCS_YCbCr, JCS_CMYK, JCS_YCCK }

enum	J_DCT_METHOD { JDCT_ISLOW, JDCT_IFAST, JDCT_FLOAT }

enum	J_DITHER_MODE { JDITHER_NONE, JDITHER_ORDERED, JDITHER_FS }

Functions
typedef	JMETHOD (boolean, jpeg_marker_parser_method,(j_decompress_ptr cinfo))

	EXTERN (struct jpeg_error_mgr ) jpeg_std_error JPP((struct jpeg_error_mgr err))

	EXTERN (void) jpeg_CreateCompress JPP((j_compress_ptr cinfo

	EXTERN (int) jpeg_quality_scaling JPP((int quality))

	EXTERN (JQUANT_TBL *) jpeg_alloc_quant_table JPP((j_common_ptr cinfo))

	EXTERN (JHUFF_TBL *) jpeg_alloc_huff_table JPP((j_common_ptr cinfo))

	EXTERN (JDIMENSION) jpeg_write_scanlines JPP((j_compress_ptr cinfo

	EXTERN (boolean) jpeg_start_decompress JPP((j_decompress_ptr cinfo))

	EXTERN (jvirt_barray_ptr *) jpeg_read_coefficients JPP((j_decompress_ptr cinfo))

Variables
int	version

int size_t	structsize

FILE *	outfile

FILE *	infile

J_COLOR_SPACE	colorspace

int	quality

int boolean	force_baseline

int	scale_factor

int	which_tbl

int const unsigned int *	basic_table

boolean	suppress

boolean	write_all_tables

JSAMPARRAY	scanlines

JSAMPARRAY JDIMENSION	num_lines

JSAMPIMAGE	data

int	marker

int const JOCTET *	dataptr

int const JOCTET unsigned int	datalen

int	val

boolean	require_image

JSAMPARRAY JDIMENSION	max_lines

int	scan_number

int	marker_code

int unsigned int	length_limit

int jpeg_marker_parser_method	routine

jvirt_barray_ptr *	coef_arrays

j_compress_ptr	dstinfo

int	desired

Macro Definition Documentation

◆ C_MAX_BLOCKS_IN_MCU

#define C_MAX_BLOCKS_IN_MCU 10 /* compressor's limit on blocks per MCU */

Definition at line 55 of file jpeglib.h.

Referenced by compress_output(), jinit_c_coef_controller(), per_scan_setup(), transencode_coef_controller(), and transencode_master_selection().

◆ D_MAX_BLOCKS_IN_MCU

#define D_MAX_BLOCKS_IN_MCU 10 /* decompressor's limit on blocks per MCU */

Definition at line 57 of file jpeglib.h.

Referenced by jinit_d_coef_controller(), and per_scan_setup().

◆ DCTSIZE

#define DCTSIZE 8 /* The basic DCT block is 8x8 samples */

◆ DCTSIZE2

#define DCTSIZE2 64 /* DCTSIZE squared; # of elements in a block */

◆ JDCT_DEFAULT

#define JDCT_DEFAULT JDCT_ISLOW

Definition at line 224 of file jpeglib.h.

Referenced by default_decompress_parms(), and jpeg_set_defaults().

◆ JDCT_FASTEST

#define JDCT_FASTEST JDCT_IFAST

Definition at line 227 of file jpeglib.h.

◆ JMSG_LENGTH_MAX

#define JMSG_LENGTH_MAX 200 /* recommended size of format_message buffer */

Definition at line 652 of file jpeglib.h.

Referenced by output_message().

◆ JMSG_STR_PARM_MAX

#define JMSG_STR_PARM_MAX 80

Definition at line 660 of file jpeglib.h.

◆ JPEG_APP0

#define JPEG_APP0 0xE0 /* APP0 marker code */

Definition at line 1047 of file jpeglib.h.

Referenced by jcopy_markers_execute(), jcopy_markers_setup(), and print_text_marker().

◆ JPEG_COM

#define JPEG_COM 0xFE /* COM marker code */

Definition at line 1048 of file jpeglib.h.

Referenced by jcopy_markers_setup(), and print_text_marker().

◆ jpeg_common_fields

#define jpeg_common_fields

Value:

struct jpeg_error_mgr * err;    /* Error handler module */\
  struct jpeg_memory_mgr * mem; /* Memory manager module */\
  struct jpeg_progress_mgr * progress; /* Progress monitor, or NULL if none */\
  void * client_data;       /* Available for use by application */\
  boolean is_decompressor;  /* So common code can tell which is which */\
  int global_state      /* For checking call sequence validity */