img_scanner.c File Reference

Classes
struct	recycle_bucket_s
struct	zbar_image_scanner_s

Macros
#define	ASSERT_POS
#define	CACHE_CONSISTENCY
#define	CACHE_HYSTERESIS
#define	CACHE_PROXIMITY
#define	CACHE_TIMEOUT
#define	CFG(iscn, cfg)
#define	movedelta(dx, dy)
#define	NUM_SCN_CFGS
#define	RECYCLE_BUCKETS
#define	STAT(x)
#define	TEST_CFG(iscn, cfg)

Typedefs
typedef struct recycle_bucket_s	recycle_bucket_t

Functions
void	_zbar_image_scanner_add_sym (zbar_image_scanner_t *iscn, zbar_symbol_t *sym)
zbar_symbol_t *	_zbar_image_scanner_alloc_sym (zbar_image_scanner_t *iscn, zbar_symbol_type_t type, int datalen)
void	_zbar_image_scanner_recycle_syms (zbar_image_scanner_t *iscn, zbar_symbol_t *sym)
static zbar_symbol_t *	cache_lookup (zbar_image_scanner_t *iscn, zbar_symbol_t *sym)
static void	cache_sym (zbar_image_scanner_t *iscn, zbar_symbol_t *sym)
static void	dump_stats (const zbar_image_scanner_t *iscn)
static void	quiet_border (zbar_image_scanner_t *iscn)
static int	recycle_syms (zbar_image_scanner_t *iscn, zbar_symbol_set_t *syms)
static void	symbol_handler (zbar_decoder_t *dcode)
zbar_image_scanner_t *	zbar_image_scanner_create ()
	constructor. More...
void	zbar_image_scanner_destroy (zbar_image_scanner_t *iscn)
void	zbar_image_scanner_enable_cache (zbar_image_scanner_t *iscn, int enable)
const zbar_symbol_set_t *	zbar_image_scanner_get_results (const zbar_image_scanner_t *iscn)
void	zbar_image_scanner_recycle_image (zbar_image_scanner_t *iscn, zbar_image_t *img)
int	zbar_image_scanner_set_config (zbar_image_scanner_t *iscn, zbar_symbol_type_t sym, zbar_config_t cfg, int val)
zbar_image_data_handler_t *	zbar_image_scanner_set_data_handler (zbar_image_scanner_t *iscn, zbar_image_data_handler_t *handler, const void *userdata)
int	zbar_scan_image (zbar_image_scanner_t *iscn, zbar_image_t *img)

Macro Definition Documentation

#define ASSERT_POS

Referenced by zbar_scan_image().

#define CACHE_CONSISTENCY

Referenced by cache_sym().

#define CACHE_HYSTERESIS

Referenced by cache_sym().

#define CACHE_PROXIMITY

Referenced by cache_sym().

#define CACHE_TIMEOUT

Referenced by cache_lookup().

#define CFG	(		iscn,
			cfg
	)

Referenced by zbar_image_scanner_create(), zbar_image_scanner_set_config(), and zbar_scan_image().

#define movedelta	(		dx,
			dy
	)

Referenced by zbar_scan_image().

#define NUM_SCN_CFGS

#define RECYCLE_BUCKETS

Referenced by _zbar_image_scanner_alloc_sym(), _zbar_image_scanner_recycle_syms(), dump_stats(), and zbar_image_scanner_destroy().

#define STAT

(

x

)

Referenced by _zbar_image_scanner_alloc_sym(), zbar_image_scanner_recycle_image(), and zbar_scan_image().

#define TEST_CFG	(		iscn,
			cfg
	)

Referenced by symbol_handler().

Typedef Documentation

typedef struct recycle_bucket_s recycle_bucket_t

Function Documentation

void _zbar_image_scanner_add_sym	(	zbar_image_scanner_t *	iscn,
		zbar_symbol_t *	sym
	)

References _zbar_decoder_get_qr_finder_line(), _zbar_qr_found_line(), _zbar_symbol_refcnt(), qr_finder_line::boffs, cache_sym(), qr_finder_line::eoffs, zbar_symbol_set_s::head, qr_finder_line::len, qr_finder_line::pos, QR_FINDER_SUBPREC, and zbar_scanner_get_edge().

Referenced by qr_code_data_list_extract_text(), and symbol_handler().

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zbar_symbol_t* _zbar_image_scanner_alloc_sym ( zbar_image_scanner_t *  iscn, zbar_symbol_type_t  type, int  datalen  )

inline

References RECYCLE_BUCKETS, and STAT.

Referenced by cache_sym(), qr_code_data_list_extract_text(), and symbol_handler().

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void _zbar_image_scanner_recycle_syms	(	zbar_image_scanner_t *	iscn,
		zbar_symbol_t *	sym
	)

References _zbar_image_scanner_recycle_syms(), _zbar_refcnt(), _zbar_symbol_set_free(), recycle_bucket_s::head, zbar_symbol_s::next, recycle_bucket_s::nsyms, and RECYCLE_BUCKETS.

Referenced by _zbar_image_scanner_recycle_syms(), cache_lookup(), qr_code_data_list_extract_text(), recycle_syms(), zbar_image_scanner_enable_cache(), and zbar_scan_image().

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static zbar_symbol_t* cache_lookup ( zbar_image_scanner_t *  iscn, zbar_symbol_t *  sym  )

inlinestatic

References _zbar_image_scanner_recycle_syms(), CACHE_TIMEOUT, and zbar_symbol_s::next.

Referenced by cache_sym().

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static void cache_sym ( zbar_image_scanner_t *  iscn, zbar_symbol_t *  sym  )

inlinestatic

References _zbar_image_scanner_alloc_sym(), CACHE_CONSISTENCY, CACHE_HYSTERESIS, cache_lookup(), and CACHE_PROXIMITY.

Referenced by _zbar_image_scanner_add_sym().

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static void dump_stats ( const zbar_image_scanner_t *  iscn )

inlinestatic

References RECYCLE_BUCKETS, and zprintf.

Referenced by zbar_image_scanner_destroy().

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static void quiet_border ( zbar_image_scanner_t *  iscn )

inlinestatic

References zbar_scanner_flush(), and zbar_scanner_new_scan().

Referenced by zbar_scan_image().

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static int recycle_syms ( zbar_image_scanner_t *  iscn, zbar_symbol_set_t *  syms  )

inlinestatic

References _zbar_image_scanner_recycle_syms(), and _zbar_refcnt().

Referenced by zbar_image_scanner_recycle_image().

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static void symbol_handler ( zbar_decoder_t *  dcode )

static

References _zbar_image_scanner_add_sym(), _zbar_image_scanner_alloc_sym(), test_zbar::data, zbar_symbol_s::quality, sym_add_point(), TEST_CFG, x, y, zbar::ZBAR_CFG_POSITION, zbar_decoder_get_data(), zbar_decoder_get_data_length(), zbar_decoder_get_type(), zbar_decoder_get_userdata(), zbar::ZBAR_PARTIAL, zbar::ZBAR_QRCODE, zbar_scanner_get_edge(), and zbar_scanner_get_width().

Referenced by zbar_image_scanner_create().

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zbar_image_scanner_t* zbar_image_scanner_create

(

void

)

constructor.

References _zbar_qr_create(), CFG, symbol_handler(), zbar::ZBAR_CFG_POSITION, zbar::ZBAR_CFG_X_DENSITY, zbar::ZBAR_CFG_Y_DENSITY, zbar_decoder_create(), zbar_decoder_set_handler(), zbar_decoder_set_userdata(), zbar_image_scanner_destroy(), zbar_image_scanner_set_config(), and zbar_scanner_create().

Referenced by zbar::ImageScanner::ImageScanner(), imagescanner_new(), main(), zbar_gtk_processing_thread(), and zbar_processor_create().

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void zbar_image_scanner_destroy

(

zbar_image_scanner_t *

iscn

)

References _zbar_qr_destroy(), _zbar_symbol_free(), _zbar_symbol_set_free(), dump_stats(), zbar_symbol_s::next, RECYCLE_BUCKETS, zbar_decoder_destroy(), zbar_scanner_destroy(), and zbar_symbol_set_ref().

Referenced by imagescanner_dealloc(), main(), zbar_gtk_private_finalize(), zbar_image_scanner_create(), and zbar_processor_destroy().

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void zbar_image_scanner_enable_cache	(	zbar_image_scanner_t *	iscn,
		int	enable
	)

References _zbar_image_scanner_recycle_syms().

Referenced by imagescanner_enable_cache(), zbar_gtk_processing_thread(), zbar_process_image(), and zbar_processor_set_active().

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const zbar_symbol_set_t* zbar_image_scanner_get_results

(

const zbar_image_scanner_t *

iscn

)

Referenced by _zbar_process_image(), and imagescanner_get_results().

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void zbar_image_scanner_recycle_image ( zbar_image_scanner_t *  iscn, zbar_image_t *  img  )

inline

References _zbar_symbol_set_free(), recycle_syms(), and STAT.

Referenced by _zbar_process_image(), imagescanner_recycle(), zbar_gtk_process_image(), and zbar_scan_image().

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int zbar_image_scanner_set_config	(	zbar_image_scanner_t *	iscn,
		zbar_symbol_type_t	sym,
		zbar_config_t	cfg,
		int	val
	)

References CFG, zbar::ZBAR_CFG_POSITION, zbar::ZBAR_CFG_X_DENSITY, zbar::ZBAR_CFG_Y_DENSITY, zbar_decoder_set_config(), and zbar::ZBAR_PARTIAL.

Referenced by imagescanner_set_config(), main(), zbar_image_scanner_create(), and zbar_processor_set_config().

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zbar_image_data_handler_t* zbar_image_scanner_set_data_handler	(	zbar_image_scanner_t *	iscn,
		zbar_image_data_handler_t *	handler,
		const void *	userdata
	)

References result, and userdata.

int zbar_scan_image	(	zbar_image_scanner_t *	iscn,
		zbar_image_t *	img
	)

References _zbar_image_scanner_recycle_syms(), _zbar_qr_decode(), _zbar_qr_reset(), _zbar_symbol_set_create(), ASSERT_POS, CFG, test_zbar::data, fourcc, movedelta, zbar_symbol_s::next, quiet_border(), STAT, svg_close, svg_group_end, svg_group_start, svg_image, svg_open, svg_path_end, svg_path_start, x, y, zbar::ZBAR_CFG_X_DENSITY, zbar::ZBAR_CFG_Y_DENSITY, zbar::ZBAR_I25, zbar_image_scanner_recycle_image(), zbar_image_write_png, zbar::ZBAR_PARTIAL, zbar_scan_y(), zbar_scanner_new_scan(), zbar_symbol_set_ref(), and zprintf.

Referenced by _zbar_process_image(), imagescanner_scan(), main(), and zbar_gtk_process_image().

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