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/*****************************************************************************
* modules_inner.h : Macros used from within a module.
*****************************************************************************
* Copyright (C) 2001 VideoLAN
* $Id: modules_inner.h,v 1.7.2.1 2001/12/11 15:35:08 sam Exp $
*
* 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
* 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.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
*****************************************************************************/
/*****************************************************************************
* Check that we are within a module.
*****************************************************************************/
#if !( defined( MODULE_NAME ) || defined( MAKE_DEP ) )
# error "You must define MODULE_NAME before using modules_inner.h !"
#endif
/*****************************************************************************
* 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"
* #define MODULE_VAR(blah) "VLC_MODULE_foo_blah"
*
* and, if BUILTIN is 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 ) module_##y##_##z
#define MODULE_VAR( z ) "VLC_MODULE_" #z
/* If the module is built-in, then we need to define foo_InitModule instead
* of InitModule. Same for Activate- and DeactivateModule. */
#ifdef BUILTIN
# define _M( function ) CONCATENATE( MODULE_NAME, function )
# define MODULE_INIT_START \
int CONCATENATE( MODULE_NAME, InitModule ) ( module_t *p_module ) \
{ \
p_module->psz_name = MODULE_STRING; \
p_module->psz_version = VERSION;
# define MODULE_INIT_STOP \
return( 0 ); \
}
# define MODULE_ACTIVATE_START \
int CONCATENATE( MODULE_NAME, ActivateModule ) ( module_t *p_module ) \
{ \
p_module->p_functions = \
( module_functions_t * )malloc( sizeof( module_functions_t ) ); \
if( p_module->p_functions == NULL ) \
{ \
return( -1 ); \
} \
p_module->p_config = p_config;
# define MODULE_ACTIVATE_STOP \
return( 0 ); \
}
# define MODULE_DEACTIVATE_START \
int CONCATENATE( MODULE_NAME, DeactivateModule )( module_t *p_module ) \
{ \
free( p_module->p_functions );
# define MODULE_DEACTIVATE_STOP \
return( 0 ); \
}
#else
# define _M( function ) function
# define MODULE_INIT_START \
int InitModule ( module_t *p_module ) \
{ \
p_module->psz_name = MODULE_STRING; \
p_module->psz_version = VERSION;
# define MODULE_INIT_STOP \
return( 0 ); \
}
# define MODULE_ACTIVATE_START \
int ActivateModule ( module_t *p_module ) \
{ \
p_module->p_functions = \
( module_functions_t * )malloc( sizeof( module_functions_t ) ); \
if( p_module->p_functions == NULL ) \
{ \
return( -1 ); \
} \
p_module->p_config = p_config; \
p_symbols = p_module->p_symbols;
# define MODULE_ACTIVATE_STOP \
return( 0 ); \
}
# define MODULE_DEACTIVATE_START \
int DeactivateModule( module_t *p_module ) \
{ \
free( p_module->p_functions );
# define MODULE_DEACTIVATE_STOP \
return( 0 ); \
}
#endif
/* Now the real stuff */
#define MODULE_STRING STRINGIFY( MODULE_NAME )
/*****************************************************************************
* Macros used to build the configuration structure.
*****************************************************************************/
#ifdef BUILTIN
# define MODULE_CONFIG_START \
static module_config_t p_config[] = { \
{ MODULE_CONFIG_ITEM_START, NULL, NULL, NULL, NULL },
#else
# define MODULE_CONFIG_START \
module_symbols_t* p_symbols; \
static module_config_t p_config[] = { \
{ MODULE_CONFIG_ITEM_START, NULL, NULL, NULL, NULL },
#endif
#define MODULE_CONFIG_STOP \
{ MODULE_CONFIG_ITEM_END, NULL, NULL, NULL, NULL } \
};
#define ADD_WINDOW( text ) \
{ MODULE_CONFIG_ITEM_WINDOW, text, NULL, NULL, NULL },
#define ADD_FRAME( text ) \
{ MODULE_CONFIG_ITEM_FRAME, text, NULL, NULL, NULL },
#define ADD_PANE( text ) \
{ MODULE_CONFIG_ITEM_PANE, text, NULL, NULL, NULL },
#define ADD_COMMENT( text ) \
{ MODULE_CONFIG_ITEM_COMMENT, text, NULL, NULL, NULL },
#define ADD_STRING( text, name, p_update ) \
{ MODULE_CONFIG_ITEM_STRING, text, name, NULL, p_update },
#define ADD_FILE( text, name, p_update ) \
{ MODULE_CONFIG_ITEM_FILE, text, name, NULL, p_update },
#define ADD_CHECK( text, name, p_update ) \
{ MODULE_CONFIG_ITEM_CHECK, text, name, NULL, p_update },
#define ADD_CHOOSE( text, name, p_getlist, p_update ) \
{ MODULE_CONFIG_ITEM_CHOOSE, text, name, p_getlist, p_update },
#define ADD_RADIO( text, name, p_getlist, p_update ) \
{ MODULE_CONFIG_ITEM_RADIO, text, name, p_getlist, p_update },
#define ADD_SCALE( text, name, p_getlist, p_update ) \
{ MODULE_CONFIG_ITEM_SCALE, text, name, p_getlist, p_update },
#define ADD_SPIN( text, name, p_getlist, p_update ) \
{ MODULE_CONFIG_ITEM_SPIN, text, name, p_getlist, p_update },
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