/**

  * $Id$

  *

  * Plugin declarations and support. 

  * 

  * Note plugins mainly exist to make binary packagers' lives easier, 

  *

  * Copyright (c) 2009 Nathan Keynes.

  *

  * This program is free software; you can redistribute it and/or modify

  * it under the terms of the GNU General Public License as published by

  * the Free Software Foundation; either version 2 of the License, or

  * (at your option) any later version.

  *

  * This program is distributed in the hope that it will be useful,

  * but WITHOUT ANY WARRANTY; without even the implied warranty of

  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

  * GNU General Public License for more details.

  */

 #ifndef lxdream_plugin_H

 #define lxdream_plugin_H

 #include "lxdream.h"

 #ifdef __cplusplus

 extern "C" {

 #endif

 enum plugin_type {

     PLUGIN_NONE = 0,

     PLUGIN_AUDIO_DRIVER = 1,

     PLUGIN_INPUT_DRIVER = 2,

 };

 #define PLUGIN_MIN_TYPE 1

 #define PLUGIN_MAX_TYPE PLUGIN_INPUT_DRIVER

 struct plugin_struct {

     enum plugin_type type;

     const char *name;

     const char *version;

     /**

      * Plugin registration function, called at load time (dynamic modules) or 

      * startup (static modules). This should register with the appropriate 

      * driver list. 

      * @return TRUE on success, FALSE on failure (although exactly how this 

      * can fail is unclear).

      */

     gboolean (*register_plugin)(void);

 };

 #define CONSTRUCTOR __attribute__((constructor))

 #ifdef PLUGIN

 #define DEFINE_PLUGIN(type,name,fn) struct plugin_struct lxdream_plugin_entry = { type, name, VERSION, fn }

 #define AUDIO_DRIVER(name, driver) static gboolean __lxdream_plugin_init(void) { return audio_register_driver(&(driver)); }  \

     DEFINE_PLUGIN(PLUGIN_AUDIO_DRIVER, name, __lxdream_plugin_init)

 #else /* !ENABLE_SHARED */

 #define AUDIO_DRIVER(name,driver) static void CONSTRUCTOR __lxdream_static_constructor(void) { audio_register_driver(&(driver)); } 

 #define DEFINE_PLUGIN(type,name,fn) static void CONSTRUCTOR __lxdream_static_constructor(void) { fn(); }

 #endif /* ENABLE_SHARED */

 gboolean plugin_init();

 #ifdef __cplusplus

 }

 #endif

 #endif /* !lxdream_plugin_H */