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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.  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 "MagickCore/thread-private.h"
22 
23 #if defined(__cplusplus) || defined(c_plusplus)
24 extern "C" {
25 #endif
26 
DestroyResampleFilterThreadSet(ResampleFilter ** filter)27 static 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 
AcquireResampleFilterThreadSet(const Image * image,const VirtualPixelMethod method,const MagickBooleanType interpolate,ExceptionInfo * exception)41 static 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     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);
67   }
68   return(filter);
69 }
70 
71 #if defined(__cplusplus) || defined(c_plusplus)
72 }
73 #endif
74 
75 #endif
76