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 resampling private methods.
17*/
18#ifndef MAGICKCORE_RESAMPLE_PRIVATE_H
19#define MAGICKCORE_RESAMPLE_PRIVATE_H
20
21#include "MagickCore/thread-private.h"
22
23#if defined(__cplusplus) || defined(c_plusplus)
24extern "C" {
25#endif
26
27static inline ResampleFilter **DestroyResampleFilterThreadSet(
28  ResampleFilter **filter)
29{
30  register ssize_t
31    i;
32
33  assert(filter != (ResampleFilter **) NULL);
34  for (i=0; i < (ssize_t) GetMagickResourceLimit(ThreadResource); i++)
35    if (filter[i] != (ResampleFilter *) NULL)
36      filter[i]=DestroyResampleFilter(filter[i]);
37  filter=(ResampleFilter **) RelinquishMagickMemory(filter);
38  return(filter);
39}
40
41static inline ResampleFilter **AcquireResampleFilterThreadSet(
42  const Image *image,const VirtualPixelMethod method,
43  const MagickBooleanType interpolate,ExceptionInfo *exception)
44{
45  register ssize_t
46    i;
47
48  ResampleFilter
49    **filter;
50
51  size_t
52    number_threads;
53
54  number_threads=(size_t) GetMagickResourceLimit(ThreadResource);
55  filter=(ResampleFilter **) AcquireQuantumMemory(number_threads,
56    sizeof(*filter));
57  if (filter == (ResampleFilter **) NULL)
58    return((ResampleFilter **) NULL);
59  (void) ResetMagickMemory(filter,0,number_threads*sizeof(*filter));
60  for (i=0; i < (ssize_t) number_threads; i++)
61  {
62    filter[i]=AcquireResampleFilter(image,exception);
63    if (filter[i] == (ResampleFilter *) NULL)
64      return(DestroyResampleFilterThreadSet(filter));
65    if (method != UndefinedVirtualPixelMethod)
66      (void) SetResampleFilterVirtualPixelMethod(filter[i],method);
67    if (interpolate != MagickFalse)
68      SetResampleFilter(filter[i],PointFilter);
69  }
70  return(filter);
71}
72
73#if defined(__cplusplus) || defined(c_plusplus)
74}
75#endif
76
77#endif
78