MagickCore  6.9.11
Convert, Edit, Or Compose Bitmap Images
resample-private.h
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1 /*
2  Copyright 1999-2020 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 "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
RelinquishAlignedMemory
MagickExport void * RelinquishAlignedMemory(void *memory)
Definition: memory.c:1081
VirtualPixelMethod
VirtualPixelMethod
Definition: cache-view.h:28
AcquireResampleFilter
MagickExport ResampleFilter * AcquireResampleFilter(const Image *image, ExceptionInfo *exception)
Definition: resample.c:206
SetResampleFilter
MagickExport void SetResampleFilter(ResampleFilter *resample_filter, const FilterTypes filter, const double blur)
Definition: resample.c:1255
DestroyResampleFilter
MagickExport ResampleFilter * DestroyResampleFilter(ResampleFilter *resample_filter)
Definition: resample.c:269
PointFilter
@ PointFilter
Definition: resample.h:35
thread-private.h
_Image
Definition: image.h:153
MagickFalse
@ MagickFalse
Definition: magick-type.h:200
SetResampleFilterVirtualPixelMethod
MagickExport MagickBooleanType SetResampleFilterVirtualPixelMethod(ResampleFilter *resample_filter, const VirtualPixelMethod method)
Definition: resample.c:1457
AcquireAlignedMemory
MagickExport void * AcquireAlignedMemory(const size_t count, const size_t quantum)
Definition: memory.c:337
AcquireResampleFilterThreadSet
static ResampleFilter ** AcquireResampleFilterThreadSet(const Image *image, const VirtualPixelMethod method, const MagickBooleanType interpolate, ExceptionInfo *exception)
Definition: resample-private.h:41
UndefinedVirtualPixelMethod
@ UndefinedVirtualPixelMethod
Definition: cache-view.h:29
MagickBooleanType
MagickBooleanType
Definition: magick-type.h:199
DestroyResampleFilterThreadSet
static ResampleFilter ** DestroyResampleFilterThreadSet(ResampleFilter **filter)
Definition: resample-private.h:27
_ExceptionInfo
Definition: exception.h:103
_ResampleFilter
Definition: resample.c:92
ThreadResource
@ ThreadResource
Definition: resource_.h:33
ThrowFatalException
#define ThrowFatalException(severity, tag)
Definition: exception-private.h:42
ResourceLimitFatalError
@ ResourceLimitFatalError
Definition: exception.h:78
GetMagickResourceLimit
MagickExport MagickSizeType GetMagickResourceLimit(const ResourceType type)
Definition: resource.c:842