graphicsmagick_c/src/graphicsmagick_c/magick/registry.d

   1 /*
   2   Copyright (C) 2003 GraphicsMagick Group
   3   Copyright (C) 2002 ImageMagick Studio
   4
   5   This program is covered by multiple licenses, which are described in
   6   Copyright.txt. You should have received a copy of Copyright.txt with this
   7   package; otherwise see http://www.graphicsmagick.org/www/Copyright.html.
   8
   9   Magick registry methods.
  10 */
  11 // Complete graphicsmagick_c wrapper for version 1.3.
  12 module graphicsmagick_c.magick.registry;
  13
  14 import core.stdc.config : c_long, c_ulong;
  15
  16 import graphicsmagick_c.magick.error : ExceptionInfo;
  17 import graphicsmagick_c.magick.image : Image;
  18
  19 /*
  20     Enum declarations.
  21 */
  22 enum : RegistryType
  23 {
  24     UndefinedRegsitryType,
  25     ImageRegsitryType,
  26     ImageInfoRegistryType
  27 }
  28 alias RegistryType = int;
  29
  30 struct _RegistryInfo
  31 {
  32     c_long id;
  33
  34     RegistryType type;
  35
  36     void* blob;
  37
  38     size_t length;
  39
  40     c_ulong signature;
  41
  42     _RegistryInfo* previous;
  43     _RegistryInfo* next;
  44 }
  45 alias RegistryInfo = _RegistryInfo;
  46
  47 version (GMagick_Static)
  48 {
  49     @system @nogc nothrow extern (C):
  50
  51     Image* GetImageFromMagickRegistry(const scope char*, c_long* id, ExceptionInfo*);
  52
  53     c_long SetMagickRegistry(const scope RegistryType, const scope void*, const scope size_t, ExceptionInfo*);
  54
  55     uint DeleteMagickRegistry(const scope c_long);
  56
  57     void DestroyMagickRegistry();
  58     void* GetMagickRegistry(const scope c_long, RegistryType*, size_t*, ExceptionInfo*);
  59 }
  60 else
  61 {
  62     @system @nogc nothrow extern(C)
  63     {
  64         alias mGetImageFromMagickRegistry = Image* function(const scope char*, c_long* id, ExceptionInfo*);
  65
  66         alias mSetMagickRegistry = c_long function(const scope RegistryType, const scope void*, const scope size_t, ExceptionInfo*);
  67
  68         alias mDeleteMagickRegistry = uint function(const scope c_long);
  69
  70         alias mDestroyMagickRegistry = void function();
  71         alias mGetMagickRegistry = void* function(const scope c_long, RegistryType*, size_t*, ExceptionInfo*);
  72     }
  73
  74     __gshared
  75     {
  76         mGetImageFromMagickRegistry GetImageFromMagickRegistry;
  77
  78         mSetMagickRegistry SetMagickRegistry;
  79
  80         mDeleteMagickRegistry DeleteMagickRegistry;
  81
  82         mDestroyMagickRegistry DestroyMagickRegistry;
  83         mGetMagickRegistry GetMagickRegistry;
  84     }
  85
  86     package(graphicsmagick_c)
  87     {
  88         import core.sys.posix.dlfcn : dlerror, dlsym;
  89         import core.stdc.stdio : fprintf, stderr;
  90
  91         bool _loadRegistryH(void* dlib)
  92         {
  93             char* errmsg;
  94             bool success = true;
  95
  96             GetImageFromMagickRegistry = cast(mGetImageFromMagickRegistry)dlsym(dlib, "GetImageFromMagickRegistry");
  97             if (null !is (errmsg = dlerror())) {
  98                 debug(graphicsmagick_c)
  99                 {
 100                     fprintf(stderr, "ERROR graphicsmagick_c.magick.registry:\n  %s\n", errmsg);
 101                 }
 102                 success = false;
 103             }
 104
 105             SetMagickRegistry = cast(mSetMagickRegistry)dlsym(dlib, "SetMagickRegistry");
 106             if (null !is (errmsg = dlerror())) {
 107                 debug(graphicsmagick_c)
 108                 {
 109                     fprintf(stderr, "ERROR graphicsmagick_c.magick.registry:\n  %s\n", errmsg);
 110                 }
 111                 success = false;
 112             }
 113
 114             DeleteMagickRegistry = cast(mDeleteMagickRegistry)dlsym(dlib, "DeleteMagickRegistry");
 115             if (null !is (errmsg = dlerror())) {
 116                 debug(graphicsmagick_c)
 117                 {
 118                     fprintf(stderr, "ERROR graphicsmagick_c.magick.registry:\n  %s\n", errmsg);
 119                 }
 120                 success = false;
 121             }
 122
 123             DestroyMagickRegistry = cast(mDestroyMagickRegistry)dlsym(dlib, "DestroyMagickRegistry");
 124             if (null !is (errmsg = dlerror())) {
 125                 debug(graphicsmagick_c)
 126                 {
 127                     fprintf(stderr, "ERROR graphicsmagick_c.magick.registry:\n  %s\n", errmsg);
 128                 }
 129                 success = false;
 130             }
 131             GetMagickRegistry = cast(mGetMagickRegistry)dlsym(dlib, "GetMagickRegistry");
 132             if (null !is (errmsg = dlerror())) {
 133                 debug(graphicsmagick_c)
 134                 {
 135                     fprintf(stderr, "ERROR graphicsmagick_c.magick.registry:\n  %s\n", errmsg);
 136                 }
 137                 success = false;
 138             }
 139
 140             return success;
 141         }
 142     }
 143 }