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/* base class for various operations on bands
*/
/*
This file is part of VIPS.
VIPS 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 of the License, or
(at your option) any later version.
This program 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 program; 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__BANDARY_H
#define VIPS__BANDARY_H
#ifdef __cplusplus
extern "C" {
#endif /*__cplusplus*/
#include "pconversion.h"
#define VIPS_TYPE_BANDARY (vips_bandary_get_type())
#define VIPS_BANDARY(obj) \
(G_TYPE_CHECK_INSTANCE_CAST((obj), \
VIPS_TYPE_BANDARY, VipsBandary))
#define VIPS_BANDARY_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST((klass), \
VIPS_TYPE_BANDARY, VipsBandaryClass))
#define VIPS_IS_BANDARY(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE((obj), VIPS_TYPE_BANDARY))
#define VIPS_IS_BANDARY_CLASS(klass) \
(G_TYPE_CHECK_CLASS_TYPE((klass), VIPS_TYPE_BANDARY))
#define VIPS_BANDARY_GET_CLASS(obj) \
(G_TYPE_INSTANCE_GET_CLASS((obj), \
VIPS_TYPE_BANDARY, VipsBandaryClass))
struct _VipsBandary;
/* Our sequence value.
*/
typedef struct {
struct _VipsBandary *bandary;
/* Set of input regions.
*/
VipsRegion **ir;
/* For each input, an input pointer.
*/
VipsPel **p;
/* A memory area large enough to hold one pixel from each input image.
*/
VipsPel *pixels;
} VipsBandarySequence;
typedef void (*VipsBandaryProcessFn)(VipsBandarySequence *seq,
VipsPel *out, VipsPel **in, int width);
typedef struct _VipsBandary {
VipsConversion parent_instance;
/* Array of input arguments, set these from a subclass.
*/
VipsImage **in;
int n;
/* The number of output bands. For example, VipsBandjoin sets the sum
* of the bands in the input images.
*/
int out_bands;
/* The input images, ready for the operation.
*/
VipsImage **ready;
} VipsBandary;
typedef struct _VipsBandaryClass {
VipsConversionClass parent_class;
/* The buffer processor.
*/
VipsBandaryProcessFn process_line;
/* For each input format, what output format. Leave NULL for output
* format == input format.
*/
const VipsBandFormat *format_table;
} VipsBandaryClass;
GType vips_bandary_get_type(void);
int vips_bandary_copy(VipsBandary *bandary);
#ifdef __cplusplus
}
#endif /*__cplusplus*/
#endif /*VIPS__BANDARY_H*/
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