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/*
Copyright 1999-2021 ImageMagick Studio LLC, a non-profit organization
dedicated to making software imaging solutions freely available.
You may not use this file except in compliance with the License. You may
obtain a copy of the License at
https://imagemagick.org/script/license.php
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
MagickCore graphic resample methods.
*/
#ifndef MAGICKCORE_RESAMPLE_H
#define MAGICKCORE_RESAMPLE_H
#include "MagickCore/cache-view.h"
#if defined(__cplusplus) || defined(c_plusplus)
extern "C" {
#endif
/*
WARNING: The order of this table must also match the order of a table
located in AcquireResizeFilter() in "resize.c" otherwise the users filter
will not match the actual filter that is setup.
*/
typedef enum
{
UndefinedFilter,
PointFilter,
BoxFilter,
TriangleFilter,
HermiteFilter,
HannFilter,
HammingFilter,
BlackmanFilter,
GaussianFilter,
QuadraticFilter,
CubicFilter,
CatromFilter,
MitchellFilter,
JincFilter,
SincFilter,
SincFastFilter,
KaiserFilter,
WelchFilter,
ParzenFilter,
BohmanFilter,
BartlettFilter,
LagrangeFilter,
LanczosFilter,
LanczosSharpFilter,
Lanczos2Filter,
Lanczos2SharpFilter,
RobidouxFilter,
RobidouxSharpFilter,
CosineFilter,
SplineFilter,
LanczosRadiusFilter,
CubicSplineFilter,
SentinelFilter /* a count of all the filters, not a real filter */
} FilterType;
/*
Backward compatibility for the more correctly named Jinc Filter. Original
source of this filter is from "zoom" but it refers to a reference by Pratt,
who does not actualy name the filter.
also miss-spellings of common filters
*/
#define BesselFilter JincFilter
#define WelshFilter WelchFilter
#define HanningFilter HannFilter
typedef struct _ResampleFilter
ResampleFilter;
extern MagickExport MagickBooleanType
ResamplePixelColor(ResampleFilter *,const double,const double,
PixelInfo *,ExceptionInfo *),
SetResampleFilterInterpolateMethod(ResampleFilter *,
const PixelInterpolateMethod),
SetResampleFilterVirtualPixelMethod(ResampleFilter *,
const VirtualPixelMethod);
extern MagickExport ResampleFilter
*AcquireResampleFilter(const Image *,ExceptionInfo *),
*DestroyResampleFilter(ResampleFilter *);
extern MagickExport void
ScaleResampleFilter(ResampleFilter *,const double,const double,const double,
const double),
SetResampleFilter(ResampleFilter *,const FilterType);
#if defined(__cplusplus) || defined(c_plusplus)
}
#endif
#endif
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