MagickCore  6.9.10
Convert, Edit, Or Compose Bitmap Images
resample-private.h
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1 /*
2  Copyright 1999-2019 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  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 "magick/thread-private.h"
22 
23 #if defined(__cplusplus) || defined(c_plusplus)
24 extern "C" {
25 #endif
26 
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 **) RelinquishAlignedMemory(filter);
38  return(filter);
39 }
40 
42  const Image *image,const VirtualPixelMethod method,
43  const MagickBooleanType interpolate,ExceptionInfo *exception)
44 {
45  register 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
VirtualPixelMethod
Definition: cache-view.h:28
@ UndefinedVirtualPixelMethod
Definition: cache-view.h:29
#define ThrowFatalException(severity, tag)
Definition: exception-private.h:42
@ ResourceLimitFatalError
Definition: exception.h:78
MagickBooleanType
Definition: magick-type.h:196
@ MagickFalse
Definition: magick-type.h:197
MagickExport void * AcquireAlignedMemory(const size_t count, const size_t quantum)
Definition: memory.c:243
MagickExport void * RelinquishAlignedMemory(void *memory)
Definition: memory.c:1040
static ResampleFilter ** AcquireResampleFilterThreadSet(const Image *image, const VirtualPixelMethod method, const MagickBooleanType interpolate, ExceptionInfo *exception)
Definition: resample-private.h:41
static ResampleFilter ** DestroyResampleFilterThreadSet(ResampleFilter **filter)
Definition: resample-private.h:27
MagickExport ResampleFilter * DestroyResampleFilter(ResampleFilter *resample_filter)
Definition: resample.c:269
MagickExport void SetResampleFilter(ResampleFilter *resample_filter, const FilterTypes filter, const double blur)
Definition: resample.c:1255
MagickExport ResampleFilter * AcquireResampleFilter(const Image *image, ExceptionInfo *exception)
Definition: resample.c:206
MagickExport MagickBooleanType SetResampleFilterVirtualPixelMethod(ResampleFilter *resample_filter, const VirtualPixelMethod method)
Definition: resample.c:1457
@ PointFilter
Definition: resample.h:35
MagickExport MagickSizeType GetMagickResourceLimit(const ResourceType type)
Definition: resource.c:771
@ ThreadResource
Definition: resource_.h:33
Definition: exception.h:103
Definition: image.h:153
Definition: resample.c:92