/*****************************************************************************
- * plugin.h: LibVLC plugin macros
+ * vlc_plugin.h : Macros used from within a module.
*****************************************************************************
- * Copyright © 2007 Rémi Denis-Courmont
- * $Id$
+ * Copyright (C) 2001-2006 the VideoLAN team
+ * Copyright © 2007-2008 Rémi Denis-Courmont
+ *
+ * Authors: Samuel Hocevar <sam@zoy.org>
*
* 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
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
*****************************************************************************/
-#ifndef _VLC_PLUGIN_H
-# define _VLC_PLUGIN_H 1
+#ifndef LIBVLC_MODULES_MACROS_H
+# define LIBVLC_MODULES_MACROS_H 1
+
+/*****************************************************************************
+ * If we are not within a module, assume we're in the vlc core.
+ *****************************************************************************/
+#if !defined( __PLUGIN__ ) && !defined( __BUILTIN__ )
+# define MODULE_NAME main
+#endif
+
+/**
+ * Current plugin ABI version
+ */
+# define MODULE_SYMBOL 0_9_0k
+# define MODULE_SUFFIX "__0_9_0k"
+
+/*****************************************************************************
+ * Add a few defines. You do not want to read this section. Really.
+ *****************************************************************************/
+
+/* Explanation:
+ *
+ * if user has #defined MODULE_NAME foo, then we will need:
+ * #define MODULE_STRING "foo"
+ *
+ * and, if HAVE_DYNAMIC_PLUGINS is NOT set, we will also need:
+ * #define MODULE_FUNC( zog ) module_foo_zog
+ *
+ * this can't easily be done with the C preprocessor, thus a few ugly hacks.
+ */
+
+/* I can't believe I need to do this to change « foo » to « "foo" » */
+#define STRINGIFY( z ) UGLY_KLUDGE( z )
+#define UGLY_KLUDGE( z ) #z
+/* And I need to do _this_ to change « foo bar » to « module_foo_bar » ! */
+#define CONCATENATE( y, z ) CRUDE_HACK( y, z )
+#define CRUDE_HACK( y, z ) y##__##z
+
+/* If the module is built-in, then we need to define foo_InitModule instead
+ * of InitModule. Same for Activate- and DeactivateModule. */
+#ifdef __PLUGIN__
+# define E_( function ) CONCATENATE( function, MODULE_SYMBOL )
+# define __VLC_SYMBOL( symbol ) CONCATENATE( symbol, MODULE_SYMBOL )
+#else
+# define E_( function ) CONCATENATE( function, MODULE_NAME )
+# define __VLC_SYMBOL( symbol ) CONCATENATE( symbol, MODULE_NAME )
+#endif
+
+#if defined( __PLUGIN__ ) && ( defined( WIN32 ) || defined( UNDER_CE ) )
+# define DLL_SYMBOL __declspec(dllexport)
+# define CDECL_SYMBOL __cdecl
+#elif defined (HAVE_ATTRIBUTE_VISIBILITY)
+# define DLL_SYMBOL __attribute__((visibility("default")))
+# define CDECL_SYMBOL
+#else
+# define DLL_SYMBOL
+# define CDECL_SYMBOL
+#endif
+
+#if defined( __cplusplus )
+# define EXTERN_SYMBOL extern "C"
+#else
+# define EXTERN_SYMBOL
+#endif
+
+#define MODULE_STRING STRINGIFY( MODULE_NAME )
+
+/*
+ * InitModule: this function is called once and only once, when the module
+ * is looked at for the first time. We get the useful data from it, for
+ * instance the module name, its shortcuts, its capabilities... we also create
+ * a copy of its config because the module can be unloaded at any time.
+ */
+#if defined (__PLUGIN__) || defined (__BUILTIN__)
+EXTERN_SYMBOL DLL_SYMBOL int CDECL_SYMBOL
+E_(vlc_entry) ( module_t *p_module );
+#endif
+
+#define vlc_module_begin( ) \
+ EXTERN_SYMBOL DLL_SYMBOL int CDECL_SYMBOL \
+ __VLC_SYMBOL(vlc_entry) ( module_t *p_module ) \
+ { \
+ module_config_t *p_config = NULL; \
+ if (vlc_module_set (p_module, VLC_MODULE_NAME, \
+ (const char *)(MODULE_STRING))) \
+ goto error; \
+ { \
+ module_t *p_submodule = p_module /* the ; gets added */
+
+#define vlc_module_end( ) \
+ } \
+ (void)p_config; \
+ return VLC_SUCCESS; \
+ \
+ error: \
+ return VLC_EGENERIC; \
+ } \
+ struct _u_n_u_s_e_d_ /* the ; gets added */
+
+
+#define add_submodule( ) \
+ p_submodule = vlc_submodule_create( p_module )
+
+#define add_requirement( cap ) \
+ if (vlc_module_set (p_module, VLC_MODULE_CPU_REQUIREMENT, \
+ (int)(CPU_CAPABILITY_##cap))) \
+ goto error
+
+#define add_shortcut( shortcut ) \
+ if (vlc_module_set (p_submodule, VLC_MODULE_SHORTCUT, (int)(shortcut))) \
+ goto error
+
+#define set_shortname( shortname ) \
+ if (vlc_module_set (p_submodule, VLC_MODULE_SHORTNAME, \
+ (const char *)(shortname))) \
+ goto error
+
+#define set_description( desc ) \
+ if (vlc_module_set (p_submodule, VLC_MODULE_DESCRIPTION, \
+ (const char *)(desc))) \
+ goto error
+
+#define set_help( help ) \
+ if (vlc_module_set (p_submodule, VLC_MODULE_HELP, (const char *)(help))) \
+ goto error
+
+#define set_capability( cap, score ) \
+ if (vlc_module_set (p_submodule, VLC_MODULE_CAPABILITY, (int)(cap)) \
+ || vlc_module_set (p_submodule, VLC_MODULE_SCORE, (int)(score))) \
+ goto error
+
+#define set_callbacks( activate, deactivate ) \
+ if (vlc_module_set (p_submodule, VLC_MODULE_CB_OPEN, activate) \
+ || vlc_module_set (p_submodule, VLC_MODULE_CB_CLOSE, deactivate)) \
+ goto error
+
+#define linked_with_a_crap_library_which_uses_atexit( ) \
+ if (vlc_module_set (p_submodule, VLC_MODULE_NO_UNLOAD)) \
+ goto error
+
+VLC_EXPORT( module_t *, vlc_module_create, ( vlc_object_t * ) );
+VLC_EXPORT( module_t *, vlc_submodule_create, ( module_t * ) );
+VLC_EXPORT( int, vlc_module_set, (module_t *module, int propid, ...) );
+VLC_EXPORT( module_config_t *, vlc_config_create, (module_t *, int type) );
+VLC_EXPORT( int, vlc_config_set, (module_config_t *, int, ...) );
+
+enum vlc_module_properties
+{
+ /* DO NOT EVER REMOVE, INSERT OR REPLACE ANY ITEM! It would break the ABI!
+ * Append new items at the end ONLY. */
+ VLC_MODULE_CPU_REQUIREMENT,
+ VLC_MODULE_SHORTCUT,
+ VLC_MODULE_SHORTNAME,
+ VLC_MODULE_DESCRIPTION,
+ VLC_MODULE_HELP,
+ VLC_MODULE_CAPABILITY,
+ VLC_MODULE_SCORE,
+ VLC_MODULE_PROGRAM,
+ VLC_MODULE_CB_OPEN,
+ VLC_MODULE_CB_CLOSE,
+ VLC_MODULE_NO_UNLOAD,
+ VLC_MODULE_NAME,
+};
+
+enum vlc_config_properties
+{
+ /* DO NOT EVER REMOVE, INSERT OR REPLACE ANY ITEM! It would break the ABI!
+ * Append new items at the end ONLY. */
+
+ VLC_CONFIG_NAME,
+ /* command line name (args=const char *, vlc_callback_t) */
+
+ VLC_CONFIG_DESC,
+ /* description (args=const char *, const char *) */
+
+ VLC_CONFIG_VALUE,
+ /* actual value (args=int/double/const char *) */
+
+ VLC_CONFIG_RANGE,
+ /* minimum value (args=int/double/const char * twice) */
+
+ VLC_CONFIG_ADVANCED,
+ /* enable advanced flag (args=none) */
+
+ VLC_CONFIG_VOLATILE,
+ /* don't write variable to storage (args=none) */
+
+ VLC_CONFIG_PERSISTENT,
+ /* always write variable to storage (args=none) */
+
+ VLC_CONFIG_RESTART,
+ /* restart required to apply value change (args=none) */
+
+ VLC_CONFIG_PRIVATE,
+ /* hide from user (args=none) */
+
+ VLC_CONFIG_REMOVED,
+ /* tag as no longer supported (args=none) */
+
+ VLC_CONFIG_CAPABILITY,
+ /* capability for a module or list thereof (args=const char*) */
+
+ VLC_CONFIG_SHORTCUT,
+ /* one-character (short) command line option name (args=char) */
+
+ VLC_CONFIG_LIST,
+ /* possible values list
+ * (args=size_t, const <type> *, const char *const *) */
+
+ VLC_CONFIG_ADD_ACTION,
+ /* add value change callback (args=vlc_callback_t, const char *) */
+
+ VLC_CONFIG_OLDNAME,
+ /* former option name (args=const char *) */
+
+ VLC_CONFIG_SAFE,
+ /* tag as modifiable by untrusted input item "sources" (args=none) */
+};
+
+/*****************************************************************************
+ * Macros used to build the configuration structure.
+ *
+ * Note that internally we support only 3 types of config data: int, float
+ * and string.
+ * The other types declared here just map to one of these 3 basic types but
+ * have the advantage of also providing very good hints to a configuration
+ * interface so as to make it more user friendly.
+ * The configuration structure also includes category hints. These hints can
+ * provide a configuration interface with some very useful data and again
+ * allow for a more user friendly interface.
+ *****************************************************************************/
+
+#define add_type_inner( type ) \
+ p_config = vlc_config_create (p_module, type)
+
+#define add_typedesc_inner( type, text, longtext ) \
+ add_type_inner( type ); \
+ vlc_config_set (p_config, VLC_CONFIG_DESC, \
+ (const char *)(text), (const char *)(longtext))
+
+#define add_typeadv_inner( type, text, longtext, advc ) \
+ add_typedesc_inner( type, text, longtext ); \
+ if (advc) vlc_config_set (p_config, VLC_CONFIG_ADVANCED)
+
+#define add_typename_inner( type, name, text, longtext, advc, cb ) \
+ add_typeadv_inner( type, text, longtext, advc ); \
+ vlc_config_set (p_config, VLC_CONFIG_NAME, \
+ (const char *)(name), (vlc_callback_t)(cb))
+
+#define add_string_inner( type, name, text, longtext, advc, cb, v ) \
+ add_typename_inner( type, name, text, longtext, advc, cb ); \
+ vlc_config_set (p_config, VLC_CONFIG_VALUE, (const char *)(v))
+
+#define add_int_inner( type, name, text, longtext, advc, cb, v ) \
+ add_typename_inner( type, name, text, longtext, advc, cb ); \
+ vlc_config_set (p_config, VLC_CONFIG_VALUE, (int)(v))
+
+
+#define set_category( i_id ) \
+ add_type_inner( CONFIG_CATEGORY ); \
+ vlc_config_set (p_config, VLC_CONFIG_VALUE, (int)(i_id))
+
+#define set_subcategory( i_id ) \
+ add_type_inner( CONFIG_SUBCATEGORY ); \
+ vlc_config_set (p_config, VLC_CONFIG_VALUE, (int)(i_id))
+
+#define set_section( text, longtext ) \
+ add_typedesc_inner( CONFIG_SECTION, text, longtext )
+
+#define add_category_hint( text, longtext, advc ) \
+ add_typeadv_inner( CONFIG_HINT_CATEGORY, text, longtext, advc )
+
+#define add_subcategory_hint( text, longtext ) \
+ add_typedesc_inner( CONFIG_HINT_SUBCATEGORY, text, longtext )
+
+#define end_subcategory_hint \
+ add_type_inner( CONFIG_HINT_SUBCATEGORY_END )
+
+#define add_usage_hint( text ) \
+ add_typedesc_inner( CONFIG_HINT_USAGE, text, NULL )
+
+#define add_string( name, value, p_callback, text, longtext, advc ) \
+ add_string_inner( CONFIG_ITEM_STRING, name, text, longtext, advc, p_callback, value )
+
+#define add_password( name, value, p_callback, text, longtext, advc ) \
+ add_string_inner( CONFIG_ITEM_PASSWORD, name, text, longtext, advc, p_callback, value )
+
+#define add_file( name, value, p_callback, text, longtext, advc ) \
+ add_string_inner( CONFIG_ITEM_FILE, name, text, longtext, advc, p_callback, value )
+
+#define add_directory( name, value, p_callback, text, longtext, advc ) \
+ add_string_inner( CONFIG_ITEM_DIRECTORY, name, text, longtext, advc, p_callback, value )
+
+#define add_module( name, psz_caps, value, p_callback, text, longtext, advc ) \
+ add_string_inner( CONFIG_ITEM_MODULE, name, text, longtext, advc, p_callback, value ); \
+ vlc_config_set (p_config, VLC_CONFIG_CAPABILITY, (const char *)(psz_caps))
+
+#define add_module_list( name, psz_caps, value, p_callback, text, longtext, advc ) \
+ add_string_inner( CONFIG_ITEM_MODULE_LIST, name, text, longtext, advc, p_callback, value ); \
+ vlc_config_set (p_config, VLC_CONFIG_CAPABILITY, (const char *)(psz_caps))
+
+#ifndef __PLUGIN__
+#define add_module_cat( name, i_subcategory, value, p_callback, text, longtext, advc ) \
+ add_string_inner( CONFIG_ITEM_MODULE_CAT, name, text, longtext, advc, p_callback, value ); \
+ p_config->min.i = i_subcategory /* gruik */
+
+#define add_module_list_cat( name, i_subcategory, value, p_callback, text, longtext, advc ) \
+ add_string_inner( CONFIG_ITEM_MODULE_LIST_CAT, name, text, longtext, advc, p_callback, value ); \
+ p_config->min.i = i_subcategory /* gruik */
+#endif
+
+#define add_integer( name, value, p_callback, text, longtext, advc ) \
+ add_int_inner( CONFIG_ITEM_INTEGER, name, text, longtext, advc, p_callback, value )
+
+#define add_key( name, value, p_callback, text, longtext, advc ) \
+ add_int_inner( CONFIG_ITEM_KEY, name, text, longtext, advc, p_callback, value )
+
+#define add_integer_with_range( name, value, i_min, i_max, p_callback, text, longtext, advc ) \
+ add_integer( name, value, p_callback, text, longtext, advc ); \
+ change_integer_range( i_min, i_max )
+
+#define add_float( name, v, p_callback, text, longtext, advc ) \
+ add_typename_inner( CONFIG_ITEM_FLOAT, name, text, longtext, advc, p_callback ); \
+ vlc_config_set (p_config, VLC_CONFIG_VALUE, (double)(v))
+
+#define add_float_with_range( name, value, f_min, f_max, p_callback, text, longtext, advc ) \
+ add_float( name, value, p_callback, text, longtext, advc ); \
+ change_float_range( f_min, f_max )
+
+#define add_bool( name, v, p_callback, text, longtext, advc ) \
+ add_typename_inner( CONFIG_ITEM_BOOL, name, text, longtext, advc, p_callback ); \
+ if (v) vlc_config_set (p_config, VLC_CONFIG_VALUE, (int)true)
+
+/* For removed option */
+#define add_obsolete_inner( name, type ) \
+ add_type_inner( type ); \
+ vlc_config_set (p_config, VLC_CONFIG_NAME, \
+ (const char *)(name), (vlc_callback_t)NULL); \
+ vlc_config_set (p_config, VLC_CONFIG_REMOVED)
+
+#define add_obsolete_bool( name ) \
+ add_obsolete_inner( name, CONFIG_ITEM_BOOL )
+
+#define add_obsolete_integer( name ) \
+ add_obsolete_inner( name, CONFIG_ITEM_INTEGER )
+
+#define add_obsolete_float( name ) \
+ add_obsolete_inner( name, CONFIG_ITEM_FLOAT )
+
+#define add_obsolete_string( name ) \
+ add_obsolete_inner( name, CONFIG_ITEM_STRING )
+
+/* Modifier macros for the config options (used for fine tuning) */
+
+#define add_deprecated_alias( name ) \
+ vlc_config_set (p_config, VLC_CONFIG_OLDNAME, (const char *)(name))
+
+#define change_short( ch ) \
+ vlc_config_set (p_config, VLC_CONFIG_SHORTCUT, (int)(ch))
+
+#define change_string_list( list, list_text, list_update_func ) \
+ vlc_config_set (p_config, VLC_CONFIG_LIST, \
+ (size_t)(sizeof (list) / sizeof (char *)), \
+ (const char *const *)(list), \
+ (const char *const *)(list_text), \
+ list_update_func)
+
+#define change_integer_list( list, list_text, list_update_func ) \
+ vlc_config_set (p_config, VLC_CONFIG_LIST, \
+ (size_t)(sizeof (list) / sizeof (int)), \
+ (const int *)(list), \
+ (const char *const *)(list_text), \
+ list_update_func)
+
+#define change_float_list( list, list_text, list_update_func ) \
+ vlc_config_set (p_config, VLC_CONFIG_LIST, \
+ (size_t)(sizeof (list) / sizeof (float)), \
+ (const float *)(list), \
+ (const char *const *)(list_text), \
+ list_update_func)
+
+#define change_integer_range( minv, maxv ) \
+ vlc_config_set (p_config, VLC_CONFIG_RANGE, (int)(minv), (int)(maxv))
+
+#define change_float_range( minv, maxv ) \
+ vlc_config_set (p_config, VLC_CONFIG_RANGE, \
+ (double)(minv), (double)(maxv))
+
+#define change_action_add( pf_action, text ) \
+ vlc_config_set (p_config, VLC_CONFIG_ADD_ACTION, \
+ (vlc_callback_t)(pf_action), (const char *)(text))
+
+#define change_internal() \
+ vlc_config_set (p_config, VLC_CONFIG_PRIVATE)
+
+#define change_need_restart() \
+ vlc_config_set (p_config, VLC_CONFIG_RESTART)
+
+#define change_autosave() \
+ vlc_config_set (p_config, VLC_CONFIG_PERSISTENT)
+
+#define change_unsaveable() \
+ vlc_config_set (p_config, VLC_CONFIG_VOLATILE)
+
+#define change_unsafe() (void)0 /* no-op */
-#include <vlc_modules.h>
-#include <vlc_configuration.h>
+#define change_safe() \
+ vlc_config_set (p_config, VLC_CONFIG_SAFE)
#endif
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