1 files changed, 94 insertions, 0 deletions

diff --git a/libraries/evas/src/lib/file/evas_module.h b/libraries/evas/src/lib/file/evas_module.h
new file mode 100644
index 0000000..8699b6b
--- /dev/null
+++ b/libraries/evas/src/lib/file/evas_module.h
@@ -0,0 +1,94 @@
+#ifndef _EVAS_MODULE_H
+#define _EVAS_MODULE_H
+
+
+/* the module api version */
+#define EVAS_MODULE_API_VERSION 2
+
+
+/* the module types */
+typedef enum _Evas_Module_Type
+{
+   EVAS_MODULE_TYPE_ENGINE = 0,
+   EVAS_MODULE_TYPE_IMAGE_LOADER = 1,
+   EVAS_MODULE_TYPE_IMAGE_SAVER = 2,
+   EVAS_MODULE_TYPE_OBJECT = 3
+} Evas_Module_Type;
+
+
+typedef struct _Evas_Module_Api    Evas_Module_Api;
+typedef struct _Evas_Module        Evas_Module;
+typedef struct _Evas_Module_Path   Evas_Module_Path;
+typedef struct _Evas_Module_Engine Evas_Module_Engine;
+typedef struct _Evas_Module_Public Evas_Module_Public;
+
+/* the module api structure, all modules should define this struct */
+struct _Evas_Module_Api
+{
+   int                  version;
+   const char           *name;
+   const char           *author;
+
+   struct
+     {
+        int (*open)(Evas_Module *);
+        void (*close)(Evas_Module *);
+     } func;
+};
+
+/* the module structure */
+struct _Evas_Module
+{
+   const Evas_Module_Api *definition;
+
+   void         *functions;     /* this are the functions exported by the module */
+   int           id_engine;     /* some internal data for the module i.e the id for engines */
+
+   int           ref; /* how many refs */
+   int           last_used; /* the cycle count when it was last used */
+
+   LK(lock);
+
+   unsigned char        loaded : 1;
+};
+
+
+/* the internals of the module api use this struct to reference a path with a module type
+ * instead of deduce the type from the path.
+ * */
+struct _Evas_Module_Path
+{
+   Evas_Module_Type     type;
+   char                *path;
+};
+
+void         evas_module_paths_init (void);
+void         evas_module_init       (void);
+Evas_Module *evas_module_find_type  (Evas_Module_Type type, const char *name);
+Evas_Module *evas_module_engine_get(int render_method);
+void         evas_module_foreach_image_loader(Eina_Hash_Foreach cb, const void *fdata);
+int          evas_module_load       (Evas_Module *em);
+void         evas_module_unload     (Evas_Module *em);
+void         evas_module_ref        (Evas_Module *em);
+void         evas_module_unref      (Evas_Module *em);
+void         evas_module_use        (Evas_Module *em);
+void         evas_module_clean      (void);
+void         evas_module_shutdown   (void);
+EAPI Eina_Bool    evas_module_register   (const Evas_Module_Api *module, Evas_Module_Type type);
+EAPI Eina_Bool    evas_module_unregister (const Evas_Module_Api *module, Evas_Module_Type type);
+
+#define EVAS_MODULE_DEFINE(Type, Tn, Name)              \
+  Eina_Bool evas_##Tn##_##Name##_init(void)             \
+  {                                                     \
+     return evas_module_register(&evas_modapi, Type);   \
+  }                                                     \
+  void evas_##Tn##_##Name##_shutdown(void)              \
+  {                                                     \
+     evas_module_unregister(&evas_modapi, Type);        \
+  }
+
+#define EVAS_EINA_MODULE_DEFINE(Tn, Name)       \
+  EINA_MODULE_INIT(evas_##Tn##_##Name##_init);  \
+  EINA_MODULE_SHUTDOWN(evas_##Tn##_##Name##_shutdown);
+
+#endif /* _EVAS_MODULE_H */