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/* base class for all stats operations
*/
/*
Copyright (C) 1991-2005 The National Gallery
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
02110-1301 USA
*/
/*
These files are distributed with VIPS - http://www.vips.ecs.soton.ac.uk
*/
#ifndef VIPS_STATISTIC_H
#define VIPS_STATISTIC_H
#ifdef __cplusplus
extern "C" {
#endif /*__cplusplus*/
#include <vips/vector.h>
#define VIPS_TYPE_STATISTIC (vips_statistic_get_type())
#define VIPS_STATISTIC( obj ) \
(G_TYPE_CHECK_INSTANCE_CAST( (obj), \
VIPS_TYPE_STATISTIC, VipsStatistic ))
#define VIPS_STATISTIC_CLASS( klass ) \
(G_TYPE_CHECK_CLASS_CAST( (klass), \
VIPS_TYPE_STATISTIC, VipsStatisticClass))
#define VIPS_IS_STATISTIC( obj ) \
(G_TYPE_CHECK_INSTANCE_TYPE( (obj), VIPS_TYPE_STATISTIC ))
#define VIPS_IS_STATISTIC_CLASS( klass ) \
(G_TYPE_CHECK_CLASS_TYPE( (klass), VIPS_TYPE_STATISTIC ))
#define VIPS_STATISTIC_GET_CLASS( obj ) \
(G_TYPE_INSTANCE_GET_CLASS( (obj), \
VIPS_TYPE_STATISTIC, VipsStatisticClass ))
typedef struct _VipsStatistic VipsStatistic;
typedef struct _VipsStatisticClass VipsStatisticClass;
typedef void *(*VipsStatisticStartFn)( VipsStatistic *statistic );
typedef int (*VipsStatisticScanFn)( VipsStatistic *statistic,
void *seq, int x, int y, void *p, int n );
typedef int (*VipsStatisticStopFn)( VipsStatistic *statistic, void *seq );
struct _VipsStatistic {
VipsOperation parent_instance;
/* All have an input image.
*/
VipsImage *in;
/* The input image cast and ready for processing.
*/
VipsImage *ready;
/* Set this to stop computation early.
*/
gboolean stop;
/* Client data for the subclass.
*/
void *a;
void *b;
};
struct _VipsStatisticClass {
VipsOperationClass parent_class;
/* Start/scan/stop, for vips_sink.
*/
VipsStatisticStartFn start;
VipsStatisticScanFn scan;
VipsStatisticStopFn stop;
/* For each input format, what output format. If NULL, no casting.
*/
const VipsBandFormat *format_table;
};
GType vips_statistic_get_type( void );
#ifdef __cplusplus
}
#endif /*__cplusplus*/
#endif /*VIPS_STATISTIC_H*/
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