101 lines
2.5 KiB
C
101 lines
2.5 KiB
C
/* base class for all histogram operations
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*
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* many hists in, one hist out, a buffer processing function in the class
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*/
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/*
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Copyright (C) 1991-2005 The National Gallery
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with this library; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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02110-1301 USA
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*/
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/*
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These files are distributed with VIPS - http://www.vips.ecs.soton.ac.uk
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*/
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#ifndef VIPS_PHISTOGRAM_H
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#define VIPS_PHISTOGRAM_H
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#ifdef __cplusplus
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extern "C" {
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#endif /*__cplusplus*/
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#include <vips/vector.h>
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#define VIPS_TYPE_HISTOGRAM (vips_histogram_get_type())
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#define VIPS_HISTOGRAM( obj ) \
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(G_TYPE_CHECK_INSTANCE_CAST( (obj), \
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VIPS_TYPE_HISTOGRAM, VipsHistogram ))
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#define VIPS_HISTOGRAM_CLASS( klass ) \
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(G_TYPE_CHECK_CLASS_CAST( (klass), \
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VIPS_TYPE_HISTOGRAM, VipsHistogramClass))
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#define VIPS_IS_HISTOGRAM( obj ) \
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(G_TYPE_CHECK_INSTANCE_TYPE( (obj), VIPS_TYPE_HISTOGRAM ))
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#define VIPS_IS_HISTOGRAM_CLASS( klass ) \
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(G_TYPE_CHECK_CLASS_TYPE( (klass), VIPS_TYPE_HISTOGRAM ))
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#define VIPS_HISTOGRAM_GET_CLASS( obj ) \
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(G_TYPE_INSTANCE_GET_CLASS( (obj), \
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VIPS_TYPE_HISTOGRAM, VipsHistogramClass ))
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typedef struct _VipsHistogram VipsHistogram;
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typedef void (*VipsHistogramProcessFn)( VipsHistogram *histogram,
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VipsPel *out, VipsPel **in, int width );
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struct _VipsHistogram {
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VipsOperation parent_instance;
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VipsImage *out;
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/* NULL-terminated array of input images.
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*/
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VipsImage **in;
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int n;
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/* ... and transformed ready for processing.
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*/
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VipsImage **ready;
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};
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typedef struct _VipsHistogramClass {
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VipsOperationClass parent_class;
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/* For each input format, what output format.
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*/
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const VipsBandFormat *format_table;
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/* If not VIPS_FORMAT_NOTSET, upcast all ins to this.
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*/
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VipsBandFormat input_format;
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VipsHistogramProcessFn process;
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} VipsHistogramClass;
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GType vips_histogram_get_type( void );
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#ifdef __cplusplus
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}
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#endif /*__cplusplus*/
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#endif /*VIPS_PHISTOGRAM_H*/
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