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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 module methods.
     17 */
     18 #ifndef MAGICKCORE_MODULE_H
     19 #define MAGICKCORE_MODULE_H
     20 
     21 #include "MagickCore/version.h"
     22 
     23 #if defined(__cplusplus) || defined(c_plusplus)
     24 extern "C" {
     25 #endif
     26 
     27 #define MagickImageCoderSignature  ((size_t) \
     28   (((MagickLibInterface) << 8) | MAGICKCORE_QUANTUM_DEPTH))
     29 #define MagickImageFilterSignature  ((size_t) \
     30   (((MagickLibInterface) << 8) | MAGICKCORE_QUANTUM_DEPTH))
     31 
     32 typedef enum
     33 {
     34   MagickImageCoderModule,
     35   MagickImageFilterModule
     36 } MagickModuleType;
     37 
     38 typedef struct _ModuleInfo
     39 {
     40   char
     41     *path,
     42     *tag;
     43 
     44   void
     45     *handle,
     46     (*unregister_module)(void);
     47 
     48   size_t
     49     (*register_module)(void);
     50 
     51   time_t
     52     timestamp;
     53 
     54   MagickBooleanType
     55     stealth;
     56 
     57   size_t
     58     signature;
     59 } ModuleInfo;
     60 
     61 typedef size_t
     62   ImageFilterHandler(Image **,const int,const char **,ExceptionInfo *);
     63 
     64 extern MagickExport char
     65   **GetModuleList(const char *,const MagickModuleType,size_t *,ExceptionInfo *);
     66 
     67 extern MagickExport const ModuleInfo
     68   **GetModuleInfoList(const char *,size_t *,ExceptionInfo *);
     69 
     70 extern MagickExport MagickBooleanType
     71   InvokeDynamicImageFilter(const char *,Image **,const int,const char **,
     72     ExceptionInfo *),
     73   ListModuleInfo(FILE *,ExceptionInfo *);
     74 
     75 extern MagickExport ModuleInfo
     76   *GetModuleInfo(const char *,ExceptionInfo *);
     77 
     78 extern MagickExport void
     79   DestroyModuleList(void);
     80 
     81 #if defined(__cplusplus) || defined(c_plusplus)
     82 }
     83 #endif
     84 
     85 #endif
     86