114 lines
3.4 KiB
C
114 lines
3.4 KiB
C
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/* Various interpolators.
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*
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* J.Cupitt, 15/10/08
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*/
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/*
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This file is part of VIPS.
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VIPS is free software; you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program 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
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GNU Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 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_INTERPOLATE_H
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#define VIPS_INTERPOLATE_H
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#ifdef __cplusplus
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extern "C" {
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#endif /*__cplusplus*/
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#define VIPS_TYPE_INTERPOLATE (vips_interpolate_get_type())
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#define VIPS_INTERPOLATE( obj ) \
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(G_TYPE_CHECK_INSTANCE_CAST( (obj), \
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VIPS_TYPE_INTERPOLATE, VipsInterpolate ))
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#define VIPS_INTERPOLATE_CLASS( klass ) \
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(G_TYPE_CHECK_CLASS_CAST( (klass), \
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VIPS_TYPE_INTERPOLATE, VipsInterpolateClass))
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#define VIPS_IS_INTERPOLATE( obj ) \
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(G_TYPE_CHECK_INSTANCE_TYPE( (obj), VIPS_TYPE_INTERPOLATE ))
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#define VIPS_IS_INTERPOLATE_CLASS( klass ) \
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(G_TYPE_CHECK_CLASS_TYPE( (klass), VIPS_TYPE_INTERPOLATE ))
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#define VIPS_INTERPOLATE_GET_CLASS( obj ) \
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(G_TYPE_INSTANCE_GET_CLASS( (obj), \
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VIPS_TYPE_INTERPOLATE, VipsInterpolateClass ))
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typedef struct _VipsInterpolate {
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VipsObject parent_object;
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} VipsInterpolate;
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typedef struct _VipsInterpolateClass {
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VipsObjectClass parent_class;
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/* Write to pixel out(x,y), interpolating from in(x,y). The caller has
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* to set the regions up.
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*/
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void (*interpolate)( VipsInterpolate *, REGION *out, REGION *in,
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int out_x, int out_y, double in_x, double in_y );
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/* This interpolator needs a window of pixels this big.
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*/
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int window;
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} VipsInterpolateClass;
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VipsInterpolate *vips_interpolate_bilinear_new( void );
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/* Convenience: return a static bilinear, so no need to free it.
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*/
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VipsInterpolate *vips_interpolate_bilinear();
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#define VIPS_TYPE_INTERPOLATE_YAFR (vips_interpolate_yafr_get_type())
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#define VIPS_INTERPOLATE_YAFR( obj ) \
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(G_TYPE_CHECK_INSTANCE_CAST( (obj), \
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VIPS_TYPE_INTERPOLATE_YAFR, VipsInterpolateYafr ))
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#define VIPS_INTERPOLATE_YAFR_CLASS( klass ) \
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(G_TYPE_CHECK_CLASS_CAST( (klass), \
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VIPS_TYPE_INTERPOLATE_YAFR, VipsInterpolateYafrClass))
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#define VIPS_IS_INTERPOLATE_YAFR( obj ) \
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(G_TYPE_CHECK_INSTANCE_TYPE( (obj), VIPS_TYPE_INTERPOLATE_YAFR ))
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#define VIPS_IS_INTERPOLATE_YAFR_CLASS( klass ) \
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(G_TYPE_CHECK_CLASS_TYPE( (klass), VIPS_TYPE_INTERPOLATE_YAFR ))
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#define VIPS_INTERPOLATE_YAFR_GET_CLASS( obj ) \
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(G_TYPE_INSTANCE_GET_CLASS( (obj), \
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VIPS_TYPE_INTERPOLATE_YAFR, VipsInterpolateYafrClass ))
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typedef struct _VipsInterpolateYafr {
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VipsObject parent_object;
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} VipsInterpolateYafr;
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typedef struct _VipsInterpolateYafrClass {
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VipsObjectClass parent_class;
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} VipsInterpolateYafrClass;
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VipsInterpolateYafr *vips_interpolate_yafr_new( void );
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void vips_interpolate_yafr_set_thing( VipsInterpolateYafr *, double thing );
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#ifdef __cplusplus
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}
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#endif /*__cplusplus*/
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#endif /*VIPS_INTERPOLATE_H*/
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