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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