MagickCore  6.9.12-67
Convert, Edit, Or Compose Bitmap Images
 All Data Structures
resample-private.h
1 /*
2  Copyright 1999-2021 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. You may
6  obtain a copy of the License at
7 
8  https://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 <string.h>
22 #include "magick/thread-private.h"
23 
24 #if defined(__cplusplus) || defined(c_plusplus)
25 extern "C" {
26 #endif
27 
28 static inline ResampleFilter **DestroyResampleFilterTLS(ResampleFilter **filter)
29 {
30  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 **) RelinquishAlignedMemory(filter);
38  return(filter);
39 }
40 
41 static inline ResampleFilter **AcquireResampleFilterTLS(const Image *image,
42  const VirtualPixelMethod method,const MagickBooleanType interpolate,
43  ExceptionInfo *exception)
44 {
45  ssize_t
46  i;
47 
49  **filter;
50 
51  size_t
52  number_threads;
53 
54  number_threads=(size_t) GetMagickResourceLimit(ThreadResource);
55  filter=(ResampleFilter **) AcquireAlignedMemory(number_threads,
56  sizeof(*filter));
57  if (filter == (ResampleFilter **) NULL)
58  ThrowFatalException(ResourceLimitFatalError,"MemoryAllocationFailed");
59  (void) memset(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 (method != UndefinedVirtualPixelMethod)
64  (void) SetResampleFilterVirtualPixelMethod(filter[i],method);
65  if (interpolate != MagickFalse)
66  SetResampleFilter(filter[i],PointFilter,1.0);
67  }
68  return(filter);
69 }
70 
71 #if defined(__cplusplus) || defined(c_plusplus)
72 }
73 #endif
74 
75 #endif
Definition: image.h:152