* modules.h : Module management functions.
*****************************************************************************
* Copyright (C) 2001 VideoLAN
- * $Id: modules.h,v 1.35 2001/12/07 18:33:07 sam Exp $
+ * $Id$
*
* Authors: Samuel Hocevar <sam@zoy.org>
*
* 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
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
*****************************************************************************/
-/*****************************************************************************
- * module_bank_t, p_module_bank (global variable)
- *****************************************************************************
- * This global variable is accessed by any function using modules.
- *****************************************************************************/
-typedef struct
-{
- struct module_s * first; /* First module of the bank */
-
- vlc_mutex_t lock; /* Global lock -- you can't imagine how awful it
- is to design thread-safe linked lists. */
-} module_bank_t;
-
-extern module_bank_t *p_module_bank;
-
/*****************************************************************************
* Module #defines.
*****************************************************************************/
/* Number of tries before we unload an unused module */
-#define MODULE_HIDE_DELAY 10000
+#define MODULE_HIDE_DELAY 50
+#define MODULE_SHORTCUT_MAX 50
/* The module handle type. */
-#ifdef SYS_BEOS
-typedef int module_handle_t;
-#else
-typedef void * module_handle_t;
+#if defined(HAVE_DL_DYLD)
+# if defined (HAVE_MACH_O_DYLD_H)
+# include <mach-o/dyld.h>
+# endif
+typedef NSModule module_handle_t;
+#elif defined(HAVE_IMAGE_H)
+typedef int module_handle_t;
+#elif defined(WIN32) || defined(UNDER_CE)
+typedef void * module_handle_t;
+#elif defined(HAVE_DL_DLOPEN)
+typedef void * module_handle_t;
+#elif defined(HAVE_DL_SHL_LOAD)
+typedef shl_t module_handle_t;
#endif
/*****************************************************************************
- * Module capabilities.
+ * module_bank_t: the module bank
+ *****************************************************************************
+ * This variable is accessed by any function using modules.
*****************************************************************************/
-
-#define MODULE_CAPABILITY_NULL 0 /* The Module can't do anything */
-#define MODULE_CAPABILITY_INTF 1 << 0 /* Interface */
-#define MODULE_CAPABILITY_ACCESS 1 << 1 /* Input */
-#define MODULE_CAPABILITY_INPUT 1 << 2 /* Input */
-#define MODULE_CAPABILITY_DECAPS 1 << 3 /* Decaps */
-#define MODULE_CAPABILITY_DEC 1 << 4 /* Video decoder */
-#define MODULE_CAPABILITY_MOTION 1 << 5 /* Motion compensation */
-#define MODULE_CAPABILITY_IDCT 1 << 6 /* IDCT transformation */
-#define MODULE_CAPABILITY_AOUT 1 << 7 /* Audio output */
-#define MODULE_CAPABILITY_VOUT 1 << 8 /* Video output */
-#define MODULE_CAPABILITY_YUV 1 << 9 /* YUV colorspace conversion */
-#define MODULE_CAPABILITY_IMDCT 1 << 10 /* IMDCT transformation */
-#define MODULE_CAPABILITY_DOWNMIX 1 << 11 /* AC3 downmix */
-#define MODULE_CAPABILITY_MEMCPY 1 << 12 /* memcpy */
-
-/* FIXME: kludge */
-struct input_area_s;
-struct imdct_s;
-struct complex_s;
-struct dm_par_s;
-struct bit_stream_s;
-struct decoder_fifo_s;
-
-struct decoder_config_s;
-
-/* FIXME: not yet used */
-typedef struct probedata_s
-{
- u8 i_type;
- struct
- {
- char * psz_data;
- } aout;
-} probedata_t;
-
-/* FIXME: find a nicer way to do this. */
-typedef struct function_list_s
+struct module_bank_t
{
- int ( * pf_probe ) ( probedata_t * p_data );
-
- union
- {
- /* Interface plugin */
- struct
- {
- int ( * pf_open ) ( struct intf_thread_s * );
- void ( * pf_close )( struct intf_thread_s * );
- void ( * pf_run ) ( struct intf_thread_s * );
- } intf;
-
- /* Input plugin */
- struct
- {
- void ( * pf_init ) ( struct input_thread_s * );
- void ( * pf_open ) ( struct input_thread_s * );
- void ( * pf_close )( struct input_thread_s * );
- void ( * pf_end ) ( struct input_thread_s * );
- void ( * pf_init_bit_stream ) ( struct bit_stream_s *,
- struct decoder_fifo_s *,
- void (* pf_bitstream_callback)( struct bit_stream_s *,
- boolean_t ),
- void * );
-
- int ( * pf_read ) ( struct input_thread_s *,
- struct data_packet_s *
- pp_packets[] );
- void ( * pf_demux )( struct input_thread_s *,
- struct data_packet_s * );
-
- struct data_packet_s * ( * pf_new_packet ) ( void *, size_t );
- struct pes_packet_s * ( * pf_new_pes ) ( void * );
- void ( * pf_delete_packet ) ( void *, struct data_packet_s * );
- void ( * pf_delete_pes ) ( void *, struct pes_packet_s * );
-
- int ( * pf_set_program ) ( struct input_thread_s *,
- struct pgrm_descriptor_s * );
-
- int ( * pf_set_area ) ( struct input_thread_s *,
- struct input_area_s * );
- int ( * pf_rewind ) ( struct input_thread_s * );
- void ( * pf_seek ) ( struct input_thread_s *, off_t );
- } input;
-
- /* Audio output plugin */
- struct
- {
- int ( * pf_open ) ( struct aout_thread_s * );
- int ( * pf_setformat ) ( struct aout_thread_s * );
- long ( * pf_getbufinfo ) ( struct aout_thread_s *, long );
- void ( * pf_play ) ( struct aout_thread_s *, byte_t *, int );
- void ( * pf_close ) ( struct aout_thread_s * );
- } aout;
-
- /* Video output plugin */
- struct
- {
- int ( * pf_create ) ( struct vout_thread_s * );
- int ( * pf_init ) ( struct vout_thread_s * );
- void ( * pf_end ) ( struct vout_thread_s * );
- void ( * pf_destroy ) ( struct vout_thread_s * );
- int ( * pf_manage ) ( struct vout_thread_s * );
- void ( * pf_display ) ( struct vout_thread_s * );
- void ( * pf_setpalette ) ( struct vout_thread_s *, u16 *red,
- u16 *green, u16 *blue, u16 *transp );
- } vout;
-
- /* Motion compensation plugin */
- struct
- {
- void ( * ppppf_motion[2][2][4] ) ( yuv_data_t *, yuv_data_t *,
- int, int );
- } motion;
+ VLC_COMMON_MEMBERS
- /* IDCT plugin */
- struct
- {
- void ( * pf_idct_init ) ( void ** );
- void ( * pf_sparse_idct_add )( dctelem_t *, yuv_data_t *, int,
- void *, int );
- void ( * pf_idct_add ) ( dctelem_t *, yuv_data_t *, int,
- void *, int );
- void ( * pf_sparse_idct_copy )( dctelem_t *, yuv_data_t *, int,
- void *, int );
- void ( * pf_idct_copy ) ( dctelem_t *, yuv_data_t *, int,
- void *, int );
- void ( * pf_norm_scan ) ( u8 ppi_scan[2][64] );
- } idct;
+ int i_usage;
+ module_symbols_t symbols;
- /* YUV transformation plugin */
- struct
- {
- int ( * pf_init ) ( struct vout_thread_s * );
- int ( * pf_reset ) ( struct vout_thread_s * );
- void ( * pf_end ) ( struct vout_thread_s * );
- } yuv;
+ vlc_bool_t b_main;
+ vlc_bool_t b_builtins;
+ vlc_bool_t b_plugins;
- /* IMDCT plugin */
- struct
- {
- void ( * pf_imdct_init ) ( struct imdct_s * );
- void ( * pf_imdct_256 ) ( struct imdct_s *,
- float data[], float delay[] );
- void ( * pf_imdct_256_nol )( struct imdct_s *,
- float data[], float delay[] );
- void ( * pf_imdct_512 ) ( struct imdct_s *,
- float data[], float delay[] );
- void ( * pf_imdct_512_nol )( struct imdct_s *,
- float data[], float delay[] );
-// void ( * pf_fft_64p ) ( struct complex_s * );
+ /* Plugins cache */
+ vlc_bool_t b_cache;
+ vlc_bool_t b_cache_dirty;
+ vlc_bool_t b_cache_delete;
- } imdct;
+ int i_cache;
+ module_cache_t **pp_cache;
- /* AC3 downmix plugin */
- struct
- {
- void ( * pf_downmix_3f_2r_to_2ch ) ( float *, struct dm_par_s * );
- void ( * pf_downmix_3f_1r_to_2ch ) ( float *, struct dm_par_s * );
- void ( * pf_downmix_2f_2r_to_2ch ) ( float *, struct dm_par_s * );
- void ( * pf_downmix_2f_1r_to_2ch ) ( float *, struct dm_par_s * );
- void ( * pf_downmix_3f_0r_to_2ch ) ( float *, struct dm_par_s * );
- void ( * pf_stream_sample_2ch_to_s16 ) ( s16 *, float *, float * );
- void ( * pf_stream_sample_1ch_to_s16 ) ( s16 *, float * );
-
- } downmix;
-
- /* Decoder plugins */
- struct
- {
- int ( * pf_run ) ( struct decoder_config_s * p_config );
- } dec;
-
- /* memcpy plugins */
- struct
- {
- void* ( * fast_memcpy ) ( void *, const void *, size_t );
- } memcpy;
-
- } functions;
-
-} function_list_t;
-
-typedef struct module_functions_s
-{
- /* XXX: The order here has to be the same as above for the #defines */
- function_list_t intf;
- function_list_t access;
- function_list_t input;
- function_list_t decaps;
- function_list_t dec;
- function_list_t motion;
- function_list_t idct;
- function_list_t aout;
- function_list_t vout;
- function_list_t yuv;
- function_list_t imdct;
- function_list_t downmix;
- function_list_t memcpy;
-
-} module_functions_t;
-
-typedef struct module_functions_s * p_module_functions_t;
+ int i_loaded_cache;
+ module_cache_t **pp_loaded_cache;
+};
/*****************************************************************************
- * Macros used to build the configuration structure.
+ * Module description structure
*****************************************************************************/
-
-/* Mandatory first and last parts of the structure */
-#define MODULE_CONFIG_ITEM_START 0xdead /* The main window */
-#define MODULE_CONFIG_ITEM_END 0xbeef /* End of the window */
-
-/* Configuration widgets */
-#define MODULE_CONFIG_ITEM_WINDOW 0x0001 /* The main window */
-#define MODULE_CONFIG_ITEM_PANE 0x0002 /* A notebook pane */
-#define MODULE_CONFIG_ITEM_FRAME 0x0003 /* A frame */
-#define MODULE_CONFIG_ITEM_COMMENT 0x0004 /* A comment text */
-#define MODULE_CONFIG_ITEM_STRING 0x0005 /* A string */
-#define MODULE_CONFIG_ITEM_FILE 0x0006 /* A file selector */
-#define MODULE_CONFIG_ITEM_CHECK 0x0007 /* A checkbox */
-#define MODULE_CONFIG_ITEM_CHOOSE 0x0008 /* A choose box */
-#define MODULE_CONFIG_ITEM_RADIO 0x0009 /* A radio box */
-#define MODULE_CONFIG_ITEM_SCALE 0x000a /* A horizontal ruler */
-#define MODULE_CONFIG_ITEM_SPIN 0x000b /* A numerical selector */
-
-typedef struct module_config_s
+struct module_t
{
- int i_type; /* Configuration widget type */
- char * psz_text; /* Text commenting or describing the widget */
- char * psz_name; /* Variable name */
- void * p_getlist; /* Function to call to get a choice list */
- void * p_change; /* Function to call when commiting a change */
-} module_config_t;
+ VLC_COMMON_MEMBERS
+
+ /*
+ * Variables set by the module to identify itself
+ */
+ char *psz_shortname; /* Module name */
+ char *psz_name; /* Human-readable shortname */
+ char *psz_longname; /* Module descriptive name */
+
+ /*
+ * Variables set by the module to tell us what it can do
+ */
+ char *psz_program; /* Program name which will activate the module */
+
+ char *pp_shortcuts[ MODULE_SHORTCUT_MAX ]; /* Shortcuts to the module */
+
+ char *psz_capability; /* Capability */
+ int i_score; /* Score for each capability */
+ uint32_t i_cpu; /* Required CPU capabilities */
+
+ vlc_bool_t b_unloadable; /* Can we be dlclosed? */
+ vlc_bool_t b_reentrant; /* Are we reentrant? */
+ vlc_bool_t b_submodule; /* Is this a submodule? */
+
+ /* Callbacks */
+ int ( * pf_activate ) ( vlc_object_t * );
+ void ( * pf_deactivate ) ( vlc_object_t * );
+
+ /*
+ * Variables set by the module to store its config options
+ */
+ module_config_t *p_config; /* Module configuration structure */
+ unsigned int i_config_items; /* number of configuration items */
+ unsigned int i_bool_items; /* number of bool config items */
+
+ /*
+ * Variables used internally by the module manager
+ */
+ /* Plugin-specific stuff */
+ module_handle_t handle; /* Unique handle */
+ char * psz_filename; /* Module filename */
+
+ vlc_bool_t b_builtin; /* Set to true if the module is built in */
+ vlc_bool_t b_loaded; /* Set to true if the dll is loaded */
+
+ /*
+ * Symbol table we send to the module so that it can access vlc symbols
+ */
+ module_symbols_t *p_symbols;
+};
/*****************************************************************************
- * Bank and module description structures
+ * Module cache description structure
*****************************************************************************/
-
-/* The module description structure */
-typedef struct module_s
+struct module_cache_t
{
- boolean_t b_builtin; /* Set to true if the module is built in */
-
- union
- {
- struct
- {
- module_handle_t handle; /* Unique handle */
- char * psz_filename; /* Module filename */
-
- } plugin;
-
- struct
- {
- int ( *pf_deactivate ) ( struct module_s * );
-
- } builtin;
-
- } is;
-
- char * psz_name; /* Module _unique_ name */
- char * psz_longname; /* Module descriptive name */
- char * psz_version; /* Module version */
-
- int i_usage; /* Reference counter */
- int i_unused_delay; /* Delay until module is unloaded */
-
- struct module_s * next; /* Next module */
- struct module_s * prev; /* Previous module */
-
- module_config_t *p_config; /* Module configuration structure */
- struct module_symbols_s *p_symbols;
-
- u32 i_capabilities; /* Capability list */
- p_module_functions_t p_functions; /* Capability functions */
+ /* Mandatory cache entry header */
+ char *psz_file;
+ int64_t i_time;
+ int64_t i_size;
+ vlc_bool_t b_junk;
-} module_t;
+ /* Optional extra data */
+ module_t *p_module;
+};
/*****************************************************************************
* Exported functions.
*****************************************************************************/
-void module_InitBank ( void );
-void module_EndBank ( void );
-void module_ResetBank ( void );
-void module_ManageBank ( void );
-module_t * module_Need ( int i_capabilities, void *p_data );
-void module_Unneed ( module_t * p_module );
+#define module_InitBank(a) __module_InitBank(VLC_OBJECT(a))
+void __module_InitBank ( vlc_object_t * );
+#define module_LoadMain(a) __module_LoadMain(VLC_OBJECT(a))
+void __module_LoadMain ( vlc_object_t * );
+#define module_LoadBuiltins(a) __module_LoadBuiltins(VLC_OBJECT(a))
+void __module_LoadBuiltins ( vlc_object_t * );
+#define module_LoadPlugins(a) __module_LoadPlugins(VLC_OBJECT(a))
+void __module_LoadPlugins ( vlc_object_t * );
+#define module_EndBank(a) __module_EndBank(VLC_OBJECT(a))
+void __module_EndBank ( vlc_object_t * );
+#define module_ResetBank(a) __module_ResetBank(VLC_OBJECT(a))
+void __module_ResetBank ( vlc_object_t * );
+
+#define module_Need(a,b,c,d) __module_Need(VLC_OBJECT(a),b,c,d)
+VLC_EXPORT( module_t *, __module_Need, ( vlc_object_t *, const char *, const char *, vlc_bool_t ) );
+#define module_Unneed(a,b) __module_Unneed(VLC_OBJECT(a),b)
+VLC_EXPORT( void, __module_Unneed, ( vlc_object_t *, module_t * ) );
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