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181 lines
6.3 KiB
181 lines
6.3 KiB
/*****************************************************************************
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* modules_inner.h : Macros used from within a module.
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*****************************************************************************
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* Copyright (C) 2001 VideoLAN
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* $Id: modules_inner.h,v 1.7 2001/05/30 17:03:11 sam Exp $
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*
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* Authors: Samuel Hocevar <sam@zoy.org>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
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*****************************************************************************/
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/*****************************************************************************
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* Check that we are within a module.
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*****************************************************************************/
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#ifndef MODULE_NAME
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# error "You must define MODULE_NAME before using modules_inner.h !"
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#endif
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/*****************************************************************************
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* Add a few defines. You do not want to read this section. Really.
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*****************************************************************************/
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/* Explanation:
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*
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* if user has #defined MODULE_NAME foo, then we will need:
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* #define MODULE_STRING "foo"
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* #define MODULE_VAR(blah) "VLC_MODULE_foo_blah"
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*
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* and, if BUILTIN is set, we will also need:
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* #define MODULE_FUNC( zog ) module_foo_zog
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*
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* this can't easily be done with the C preprocessor, thus a few ugly hacks.
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*/
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/* I can't believe I need to do this to change � foo � to � "foo" � */
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#define STRINGIFY( z ) UGLY_KLUDGE( z )
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#define UGLY_KLUDGE( z ) #z
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/* And I need to do _this_ to change � foo bar � to � module_foo_bar � ! */
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#define CONCATENATE( y, z ) CRUDE_HACK( y, z )
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#define CRUDE_HACK( y, z ) module_##y##_##z
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#define MODULE_VAR( z ) "VLC_MODULE_" #z
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/* If the module is built-in, then we need to define foo_InitModule instead
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* of InitModule. Same for Activate- and DeactivateModule. */
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#ifdef BUILTIN
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# define _M( function ) CONCATENATE( MODULE_NAME, function )
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# define MODULE_INIT_START \
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int CONCATENATE( MODULE_NAME, InitModule ) ( module_t *p_module ) \
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{ \
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p_module->psz_name = MODULE_STRING; \
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p_module->psz_version = VERSION;
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# define MODULE_INIT_STOP \
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return( 0 ); \
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}
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# define MODULE_ACTIVATE_START \
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int CONCATENATE( MODULE_NAME, ActivateModule ) ( module_t *p_module ) \
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{ \
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p_module->p_functions = \
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( module_functions_t * )malloc( sizeof( module_functions_t ) ); \
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if( p_module->p_functions == NULL ) \
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{ \
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return( -1 ); \
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} \
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p_module->p_config = p_config;
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# define MODULE_ACTIVATE_STOP \
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return( 0 ); \
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}
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# define MODULE_DEACTIVATE_START \
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int CONCATENATE( MODULE_NAME, DeactivateModule )( module_t *p_module ) \
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{ \
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free( p_module->p_functions );
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# define MODULE_DEACTIVATE_STOP \
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return( 0 ); \
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}
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#else
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# define _M( function ) function
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# define MODULE_INIT_START \
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int InitModule ( module_t *p_module ) \
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{ \
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p_module->psz_name = MODULE_STRING; \
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p_module->psz_version = VERSION;
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# define MODULE_INIT_STOP \
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return( 0 ); \
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}
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# define MODULE_ACTIVATE_START \
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int ActivateModule ( module_t *p_module ) \
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{ \
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p_module->p_functions = \
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( module_functions_t * )malloc( sizeof( module_functions_t ) ); \
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if( p_module->p_functions == NULL ) \
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{ \
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return( -1 ); \
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} \
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p_module->p_config = p_config; \
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p_symbols = p_module->p_symbols;
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# define MODULE_ACTIVATE_STOP \
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return( 0 ); \
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}
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# define MODULE_DEACTIVATE_START \
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int DeactivateModule( module_t *p_module ) \
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{ \
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free( p_module->p_functions );
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# define MODULE_DEACTIVATE_STOP \
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return( 0 ); \
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}
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#endif
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/* Now the real stuff */
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#define MODULE_STRING STRINGIFY( MODULE_NAME )
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/*****************************************************************************
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* Macros used to build the configuration structure.
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*****************************************************************************/
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#ifdef BUILTIN
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# define MODULE_CONFIG_START \
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static module_config_t p_config[] = { \
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{ MODULE_CONFIG_ITEM_START, NULL, NULL, NULL, NULL },
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#else
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# define MODULE_CONFIG_START \
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module_symbols_t* p_symbols; \
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static module_config_t p_config[] = { \
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{ MODULE_CONFIG_ITEM_START, NULL, NULL, NULL, NULL },
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#endif
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#define MODULE_CONFIG_STOP \
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{ MODULE_CONFIG_ITEM_END, NULL, NULL, NULL, NULL } \
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};
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#define ADD_WINDOW( text ) \
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{ MODULE_CONFIG_ITEM_WINDOW, text, NULL, NULL, NULL },
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#define ADD_FRAME( text ) \
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{ MODULE_CONFIG_ITEM_FRAME, text, NULL, NULL, NULL },
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#define ADD_PANE( text ) \
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{ MODULE_CONFIG_ITEM_PANE, text, NULL, NULL, NULL },
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#define ADD_COMMENT( text ) \
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{ MODULE_CONFIG_ITEM_COMMENT, text, NULL, NULL, NULL },
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#define ADD_STRING( text, name, p_update ) \
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{ MODULE_CONFIG_ITEM_STRING, text, name, NULL, p_update },
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#define ADD_FILE( text, name, p_update ) \
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{ MODULE_CONFIG_ITEM_FILE, text, name, NULL, p_update },
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#define ADD_CHECK( text, name, p_update ) \
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{ MODULE_CONFIG_ITEM_CHECK, text, name, NULL, p_update },
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#define ADD_CHOOSE( text, name, p_getlist, p_update ) \
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{ MODULE_CONFIG_ITEM_CHOOSE, text, name, p_getlist, p_update },
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#define ADD_RADIO( text, name, p_getlist, p_update ) \
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{ MODULE_CONFIG_ITEM_RADIO, text, name, p_getlist, p_update },
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#define ADD_SCALE( text, name, p_getlist, p_update ) \
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{ MODULE_CONFIG_ITEM_SCALE, text, name, p_getlist, p_update },
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#define ADD_SPIN( text, name, p_getlist, p_update ) \
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{ MODULE_CONFIG_ITEM_SPIN, text, name, p_getlist, p_update },
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