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      1 /*
      2   Copyright 1999-2016 ImageMagick Studio LLC, a non-profit organization
      3   dedicated to making software imaging solutions freely available.
      4 
      5   You may not use this file except in compliance with the License.
      6   obtain a copy of the License at
      7 
      8     http://www.imagemagick.org/script/license.php
      9 
     10   Unless required by applicable law or agreed to in writing, software
     11   distributed under the License is distributed on an "AS IS" BASIS,
     12   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13   See the License for the specific language governing permissions and
     14   limitations under the License.
     15 
     16   MagickCore image resize private methods.
     17 */
     18 #ifndef MAGICKCORE_RESIZE_PRIVATE_H
     19 #define MAGICKCORE_RESIZE_PRIVATE_H
     20 
     21 #if defined(__cplusplus) || defined(c_plusplus)
     22 extern "C" {
     23 #endif
     24 
     25 typedef enum
     26 {
     27   BoxWeightingFunction = 0,
     28   TriangleWeightingFunction,
     29   CubicBCWeightingFunction,
     30   HannWeightingFunction,
     31   HammingWeightingFunction,
     32   BlackmanWeightingFunction,
     33   GaussianWeightingFunction,
     34   QuadraticWeightingFunction,
     35   JincWeightingFunction,
     36   SincWeightingFunction,
     37   SincFastWeightingFunction,
     38   KaiserWeightingFunction,
     39   WelchWeightingFunction,
     40   BohmanWeightingFunction,
     41   LagrangeWeightingFunction,
     42   CosineWeightingFunction,
     43   LastWeightingFunction
     44 } ResizeWeightingFunctionType;
     45 
     46 extern MagickPrivate double
     47   *GetResizeFilterCoefficient(const ResizeFilter*),
     48   GetResizeFilterBlur(const ResizeFilter *),
     49   GetResizeFilterScale(const ResizeFilter *),
     50   GetResizeFilterWindowSupport(const ResizeFilter *),
     51   GetResizeFilterSupport(const ResizeFilter *),
     52   GetResizeFilterWeight(const ResizeFilter *,const double);
     53 
     54 extern MagickPrivate ResizeFilter
     55   *AcquireResizeFilter(const Image *,const FilterType,const MagickBooleanType,
     56     ExceptionInfo *),
     57   *DestroyResizeFilter(ResizeFilter *);
     58 
     59 extern MagickPrivate ResizeWeightingFunctionType
     60   GetResizeFilterWeightingType(const ResizeFilter *),
     61   GetResizeFilterWindowWeightingType(const ResizeFilter *);
     62 
     63 #if defined(__cplusplus) || defined(c_plusplus)
     64 }
     65 #endif
     66 
     67 #endif
     68