nkeynes@1024: /**
nkeynes@1024:  * $Id$
nkeynes@1024:  *
nkeynes@1024:  * Plugin declarations and support. 
nkeynes@1024:  * 
nkeynes@1024:  * Note plugins mainly exist to make binary packagers' lives easier, 
nkeynes@1024:  *
nkeynes@1024:  * Copyright (c) 2009 Nathan Keynes.
nkeynes@1024:  *
nkeynes@1024:  * This program is free software; you can redistribute it and/or modify
nkeynes@1024:  * it under the terms of the GNU General Public License as published by
nkeynes@1024:  * the Free Software Foundation; either version 2 of the License, or
nkeynes@1024:  * (at your option) any later version.
nkeynes@1024:  *
nkeynes@1024:  * This program is distributed in the hope that it will be useful,
nkeynes@1024:  * but WITHOUT ANY WARRANTY; without even the implied warranty of
nkeynes@1024:  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
nkeynes@1024:  * GNU General Public License for more details.
nkeynes@1024:  */
nkeynes@1024: 
nkeynes@1024: #ifndef lxdream_plugin_H
nkeynes@1024: #define lxdream_plugin_H
nkeynes@1024: 
nkeynes@1024: #include "lxdream.h"
nkeynes@1024: 
nkeynes@1024: #ifdef __cplusplus
nkeynes@1024: extern "C" {
nkeynes@1024: #endif
nkeynes@1024: 
nkeynes@1024: enum plugin_type {
nkeynes@1024:     PLUGIN_NONE = 0,
nkeynes@1024:     PLUGIN_AUDIO_DRIVER = 1,
nkeynes@1024:     PLUGIN_INPUT_DRIVER = 2,
nkeynes@1024: };
nkeynes@1024: 
nkeynes@1024: #define PLUGIN_MIN_TYPE 1
nkeynes@1024: #define PLUGIN_MAX_TYPE PLUGIN_INPUT_DRIVER
nkeynes@1024:     
nkeynes@1024: struct plugin_struct {
nkeynes@1024:     enum plugin_type type;
nkeynes@1024:     const char *name;
nkeynes@1024:     const char *version;
nkeynes@1024:     
nkeynes@1024:     /**
nkeynes@1024:      * Plugin registration function, called at load time (dynamic modules) or 
nkeynes@1024:      * startup (static modules). This should register with the appropriate 
nkeynes@1024:      * driver list. 
nkeynes@1024:      * @return TRUE on success, FALSE on failure (although exactly how this 
nkeynes@1024:      * can fail is unclear).
nkeynes@1024:      */
nkeynes@1024:     gboolean (*register_plugin)(void);
nkeynes@1024: };
nkeynes@1024: 
nkeynes@1024: #define CONSTRUCTOR __attribute__((constructor))
nkeynes@1024: 
nkeynes@1024: #ifdef PLUGIN
nkeynes@1024: #define DEFINE_PLUGIN(type,name,fn) struct plugin_struct lxdream_plugin_entry = { type, name, VERSION, fn }
nkeynes@1024: #define AUDIO_DRIVER(name, driver) static gboolean __lxdream_plugin_init(void) { return audio_register_driver(&(driver)); }  \
nkeynes@1024:     DEFINE_PLUGIN(PLUGIN_AUDIO_DRIVER, name, __lxdream_plugin_init)
nkeynes@1024: 
nkeynes@1024: #else /* !ENABLE_SHARED */
nkeynes@1024: #define AUDIO_DRIVER(name,driver) static void CONSTRUCTOR __lxdream_static_constructor(void) { audio_register_driver(&(driver)); } 
nkeynes@1024: #define DEFINE_PLUGIN(type,name,fn) static void CONSTRUCTOR __lxdream_static_constructor(void) { fn(); }
nkeynes@1024: 
nkeynes@1024: #endif /* ENABLE_SHARED */
nkeynes@1024: 
nkeynes@1027: gboolean plugin_init();
nkeynes@1024: 
nkeynes@1024: #ifdef __cplusplus
nkeynes@1024: }
nkeynes@1024: #endif
nkeynes@1024:     
nkeynes@1169: #endif /* !lxdream_plugin_H */