/*************************************************************************** * __________ __ ___. * Open \______ \ ____ ____ | | _\_ |__ _______ ___ * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ * \/ \/ \/ \/ \/ * $Id$ * * Copyright (C) 2002 Björn Stenberg * * 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 software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY * KIND, either express or implied. * ****************************************************************************/ #include "plugin.h" #include #include #include #include "debug.h" #include "i2c.h" #include "lang.h" #include "led.h" #include "keyboard.h" #include "backlight.h" #include "sound_menu.h" #include "mp3data.h" #include "powermgmt.h" #include "splash.h" #include "logf.h" #include "option_select.h" #include "talk.h" #include "version.h" #include "storage.h" #include "pcmbuf.h" #include "errno.h" #include "diacritic.h" #include "filefuncs.h" #include "load_code.h" #if CONFIG_CHARGING #include "power.h" #endif #ifdef HAVE_LCD_BITMAP #include "scrollbar.h" #include "peakmeter.h" #include "bmp.h" #include "bidi.h" #endif #ifdef USB_ENABLE_HID #include "usbstack/usb_hid.h" #endif #if defined (SIMULATOR) #define PREFIX(_x_) sim_ ## _x_ #elif defined (APPLICATION) #define PREFIX(_x_) app_ ## _x_ #else #define PREFIX(_x_) _x_ #endif #if defined (APPLICATION) /* For symmetry reasons (we want app_ and sim_ to behave similarly), some * wrappers are needed */ static int app_close(int fd) { return close(fd); } static ssize_t app_read(int fd, void *buf, size_t count) { return read(fd,buf,count); } static off_t app_lseek(int fd, off_t offset, int whence) { return lseek(fd,offset,whence); } static ssize_t app_write(int fd, const void *buf, size_t count) { return write(fd,buf,count); } static int app_ftruncate(int fd, off_t length) { return ftruncate(fd,length); } #endif #if defined(HAVE_PLUGIN_CHECK_OPEN_CLOSE) && (MAX_OPEN_FILES>32) #warning "MAX_OPEN_FILES>32, disabling plugin file open/close checking" #undef HAVE_PLUGIN_CHECK_OPEN_CLOSE #endif #ifdef HAVE_PLUGIN_CHECK_OPEN_CLOSE static unsigned int open_files; #endif #if (CONFIG_PLATFORM & PLATFORM_HOSTED) static unsigned char pluginbuf[PLUGIN_BUFFER_SIZE]; void sim_lcd_ex_init(unsigned long (*getpixel)(int, int)); void sim_lcd_ex_update_rect(int x, int y, int width, int height); #else extern unsigned char pluginbuf[]; #include "bitswap.h" #endif /* for actual plugins only, not for codecs */ static int plugin_size = 0; static bool (*pfn_tsr_exit)(bool reenter) = NULL; /* TSR exit callback */ static char current_plugin[MAX_PATH]; /* NULL if no plugin is loaded, otherwise the handle that lc_open() returned */ static void *current_plugin_handle; char *plugin_get_current_filename(void); /* Some wrappers used to monitor open and close and detect leaks*/ static int open_wrapper(const char* pathname, int flags, ...); #ifdef HAVE_PLUGIN_CHECK_OPEN_CLOSE static int close_wrapper(int fd); static int creat_wrapper(const char *pathname, mode_t mode); #endif static void* plugin_get_audio_buffer(size_t *buffer_size); static void plugin_release_audio_buffer(void); static void plugin_tsr(bool (*exit_callback)(bool)); static const struct plugin_api rockbox_api = { /* lcd */ #ifdef HAVE_LCD_CONTRAST lcd_set_contrast, #endif lcd_update, lcd_clear_display, lcd_getstringsize, lcd_putsxy, lcd_putsxyf, lcd_puts, lcd_putsf, lcd_puts_scroll, lcd_scroll_stop, #ifdef HAVE_LCD_CHARCELLS lcd_define_pattern, lcd_get_locked_pattern, lcd_unlock_pattern, lcd_putc, lcd_put_cursor, lcd_remove_cursor, lcd_icon, lcd_double_height, #else &lcd_static_framebuffer[0][0], lcd_set_viewport, lcd_set_framebuffer, lcd_bmp_part, lcd_update_rect, lcd_set_drawmode, lcd_get_drawmode, screen_helper_setfont, lcd_drawpixel, lcd_drawline, lcd_hline, lcd_vline, lcd_drawrect, lcd_fillrect, lcd_mono_bitmap_part, lcd_mono_bitmap, #if LCD_DEPTH > 1 lcd_set_foreground, lcd_get_foreground, lcd_set_background, lcd_get_background, lcd_bitmap_part, lcd_bitmap, lcd_get_backdrop, lcd_set_backdrop, #endif #if LCD_DEPTH >= 16 lcd_bitmap_transparent_part, lcd_bitmap_transparent, #if MEMORYSIZE > 2 lcd_blit_yuv, #if defined(TOSHIBA_GIGABEAT_F) || defined(SANSA_E200) || defined(SANSA_C200) \ || defined(IRIVER_H10) || defined(COWON_D2) || defined(PHILIPS_HDD1630) \ || defined(SANSA_FUZE) || defined(SANSA_E200V2) || defined(SANSA_FUZEV2) \ || defined(TOSHIBA_GIGABEAT_S) || defined(PHILIPS_SA9200) lcd_yuv_set_options, #endif #endif /* MEMORYSIZE > 2 */ #elif (LCD_DEPTH < 4) && (CONFIG_PLATFORM & PLATFORM_NATIVE) lcd_blit_mono, lcd_blit_grey_phase, #endif /* LCD_DEPTH */ #if defined(HAVE_LCD_MODES) && (HAVE_LCD_MODES & LCD_MODE_PAL256) lcd_blit_pal256, lcd_pal256_update_pal, #endif #ifdef HAVE_LCD_INVERT lcd_set_invert_display, #endif /* HAVE_LCD_INVERT */ #if defined(HAVE_LCD_MODES) lcd_set_mode, #endif #if defined(HAVE_LCD_ENABLE) || defined(HAVE_LCD_SLEEP) &button_queue, #endif bidi_l2v, #ifdef HAVE_LCD_BITMAP is_diacritic, #endif font_get_bits, font_load, font_unload, font_get, font_getstringsize, font_get_width, screen_clear_area, gui_scrollbar_draw, #endif /* HAVE_LCD_BITMAP */ get_codepage_name, backlight_on, backlight_off, backlight_set_timeout, #ifdef HAVE_BACKLIGHT_BRIGHTNESS backlight_set_brightness, #endif /* HAVE_BACKLIGHT_BRIGHTNESS */ #if CONFIG_CHARGING backlight_set_timeout_plugged, #endif is_backlight_on, splash, splashf, #ifdef HAVE_REMOTE_LCD /* remote lcd */ lcd_remote_set_contrast, lcd_remote_clear_display, lcd_remote_puts, lcd_remote_puts_scroll, lcd_remote_scroll_stop, lcd_remote_set_drawmode, lcd_remote_get_drawmode, lcd_remote_setfont, lcd_remote_getstringsize, lcd_remote_drawpixel, lcd_remote_drawline, lcd_remote_hline, lcd_remote_vline, lcd_remote_drawrect, lcd_remote_fillrect, lcd_remote_mono_bitmap_part, lcd_remote_mono_bitmap, lcd_remote_putsxy, &lcd_remote_static_framebuffer[0][0], lcd_remote_update, lcd_remote_update_rect, remote_backlight_on, remote_backlight_off, remote_backlight_set_timeout, #if CONFIG_CHARGING remote_backlight_set_timeout_plugged, #endif #endif /* HAVE_REMOTE_LCD */ #if NB_SCREENS == 2 {&screens[SCREEN_MAIN], &screens[SCREEN_REMOTE]}, #else {&screens[SCREEN_MAIN]}, #endif #if defined(HAVE_REMOTE_LCD) && (LCD_REMOTE_DEPTH > 1) lcd_remote_set_foreground, lcd_remote_get_foreground, lcd_remote_set_background, lcd_remote_get_background, lcd_remote_bitmap_part, lcd_remote_bitmap, #endif viewport_set_defaults, #ifdef HAVE_LCD_BITMAP viewportmanager_theme_enable, viewportmanager_theme_undo, viewport_set_fullscreen, #endif /* list */ gui_synclist_init, gui_synclist_set_nb_items, gui_synclist_set_icon_callback, gui_synclist_get_nb_items, gui_synclist_get_sel_pos, gui_synclist_draw, gui_synclist_select_item, gui_synclist_add_item, gui_synclist_del_item, gui_synclist_limit_scroll, gui_synclist_do_button, gui_synclist_set_title, gui_syncyesno_run, simplelist_info_init, simplelist_show_list, /* button */ button_get, button_get_w_tmo, button_status, #ifdef HAVE_BUTTON_DATA button_get_data, button_status_wdata, #endif button_clear_queue, button_queue_count, #ifdef HAS_BUTTON_HOLD button_hold, #endif #ifdef HAVE_TOUCHSCREEN touchscreen_set_mode, touchscreen_get_mode, #endif #ifdef HAVE_BUTTON_LIGHT buttonlight_set_timeout, buttonlight_off, buttonlight_on, #ifdef HAVE_BUTTONLIGHT_BRIGHTNESS buttonlight_set_brightness, #endif /* HAVE_BUTTONLIGHT_BRIGHTNESS */ #endif /* HAVE_BUTTON_LIGHT */ /* file */ open_utf8, (open_func)open_wrapper, #ifdef HAVE_PLUGIN_CHECK_OPEN_CLOSE close_wrapper, #else PREFIX(close), #endif (read_func)PREFIX(read), PREFIX(lseek), #ifdef HAVE_PLUGIN_CHECK_OPEN_CLOSE (creat_func)creat_wrapper, #else PREFIX(creat), #endif (write_func)PREFIX(write), PREFIX(remove), PREFIX(rename), PREFIX(ftruncate), filesize, fdprintf, read_line, settings_parseline, storage_sleep, storage_spin, storage_spindown, #if USING_STORAGE_CALLBACK register_storage_idle_func, unregister_storage_idle_func, #endif /* USING_STORAGE_CALLBACK */ reload_directory, create_numbered_filename, file_exists, strip_extension, crc_32, filetype_get_attr, /* dir */ (opendir_func)opendir, (closedir_func)closedir, (readdir_func)readdir, mkdir, rmdir, dir_exists, dir_get_info, /* browsing */ browse_context_init, rockbox_browse, /* kernel/ system */ #if defined(CPU_ARM) && CONFIG_PLATFORM & PLATFORM_NATIVE __div0, #endif sleep, yield, ¤t_tick, default_event_handler, default_event_handler_ex, create_thread, thread_self, thread_exit, thread_wait, #if (CONFIG_CODEC == SWCODEC) thread_thaw, #ifdef HAVE_PRIORITY_SCHEDULING thread_set_priority, #endif mutex_init, mutex_lock, mutex_unlock, #endif reset_poweroff_timer, #if (CONFIG_PLATFORM & PLATFORM_NATIVE) system_memory_guard, &cpu_frequency, #ifdef HAVE_ADJUSTABLE_CPU_FREQ #ifdef CPU_BOOST_LOGGING cpu_boost_, #else cpu_boost, #endif #endif /* HAVE_ADJUSTABLE_CPU_FREQ */ #endif /* PLATFORM_NATIVE */ #ifdef HAVE_SCHEDULER_BOOSTCTRL trigger_cpu_boost, cancel_cpu_boost, #endif commit_dcache, commit_discard_dcache, commit_discard_idcache, lc_open, lc_open_from_mem, lc_get_header, lc_close, timer_register, timer_unregister, timer_set_period, queue_init, queue_delete, queue_post, queue_wait_w_tmo, #if CONFIG_CODEC == SWCODEC queue_enable_queue_send, queue_empty, queue_wait, queue_send, queue_reply, #endif usb_acknowledge, #ifdef USB_ENABLE_HID usb_hid_send, #endif #ifdef RB_PROFILE profile_thread, profstop, __cyg_profile_func_enter, __cyg_profile_func_exit, #endif add_event, remove_event, send_event, #if (CONFIG_PLATFORM & PLATFORM_HOSTED) /* special simulator hooks */ #if defined(HAVE_LCD_BITMAP) && LCD_DEPTH < 8 sim_lcd_ex_init, sim_lcd_ex_update_rect, #endif #endif /* strings and memory */ snprintf, vsnprintf, strcpy, strlcpy, strlen, strrchr, strcmp, strncmp, strcasecmp, strncasecmp, memset, memcpy, memmove, #if (CONFIG_PLATFORM & PLATFORM_NATIVE) _ctype_, #endif atoi, strchr, strcat, strlcat, memchr, memcmp, strcasestr, strtok_r, /* unicode stuff */ utf8decode, iso_decode, utf16LEdecode, utf16BEdecode, utf8encode, utf8length, utf8seek, /* the buflib memory management library */ buflib_init, buflib_available, buflib_alloc, buflib_alloc_ex, buflib_alloc_maximum, buflib_buffer_in, buflib_buffer_out, buflib_free, buflib_shrink, buflib_get_data, buflib_get_name, /* sound */ sound_set, sound_default, sound_min, sound_max, sound_unit, sound_val2phys, #ifdef AUDIOHW_HAVE_EQ sound_enum_hw_eq_band_setting, #endif #if (CONFIG_PLATFORM & PLATFORM_NATIVE) mp3_play_data, mp3_play_pause, mp3_play_stop, mp3_is_playing, #if CONFIG_CODEC != SWCODEC bitswap, #endif #endif #if CONFIG_CODEC == SWCODEC &audio_master_sampr_list[0], &hw_freq_sampr[0], pcm_apply_settings, pcm_play_data, pcm_play_stop, pcm_set_frequency, pcm_is_playing, pcm_is_paused, pcm_play_pause, pcm_get_bytes_waiting, pcm_calculate_peaks, pcm_get_peak_buffer, pcm_play_lock, pcm_play_unlock, beep_play, #ifdef HAVE_RECORDING &rec_freq_sampr[0], pcm_init_recording, pcm_close_recording, pcm_record_data, pcm_stop_recording, pcm_calculate_rec_peaks, audio_set_recording_gain, #endif /* HAVE_RECORDING */ #if INPUT_SRC_CAPS != 0 audio_set_output_source, audio_set_input_source, #endif dsp_set_crossfeed_type , dsp_eq_enable, dsp_dither_enable, #ifdef HAVE_PITCHCONTROL dsp_set_timestretch, #endif dsp_configure, dsp_get_config, dsp_process, mixer_channel_status, mixer_channel_get_buffer, mixer_channel_calculate_peaks, mixer_channel_play_data, mixer_channel_play_pause, mixer_channel_stop, mixer_channel_set_amplitude, mixer_channel_get_bytes_waiting, mixer_channel_set_buffer_hook, mixer_set_frequency, mixer_get_frequency, system_sound_play, keyclick_click, #endif /* CONFIG_CODEC == SWCODEC */ /* playback control */ playlist_amount, playlist_resume, playlist_resume_track, playlist_start, playlist_add, playlist_sync, playlist_remove_all_tracks, playlist_create, playlist_insert_track, playlist_insert_directory, playlist_shuffle, audio_play, audio_stop, audio_pause, audio_resume, audio_next, audio_prev, audio_ff_rewind, audio_next_track, audio_status, audio_current_track, audio_flush_and_reload_tracks, audio_get_file_pos, #if !defined(SIMULATOR) && (CONFIG_CODEC != SWCODEC) mpeg_get_last_header, #endif #if ((CONFIG_CODEC == MAS3587F) || (CONFIG_CODEC == MAS3539F) || \ (CONFIG_CODEC == SWCODEC)) && defined (HAVE_PITCHCONTROL) sound_set_pitch, #endif #if !defined(SIMULATOR) && (CONFIG_CODEC != SWCODEC) /* MAS communication */ mas_readmem, mas_writemem, mas_readreg, mas_writereg, #if (CONFIG_CODEC == MAS3587F) || (CONFIG_CODEC == MAS3539F) mas_codec_writereg, mas_codec_readreg, i2c_begin, i2c_end, i2c_write, #endif #endif /* !SIMULATOR && CONFIG_CODEC != SWCODEC */ /* menu */ do_menu, /* statusbars */ &statusbars, gui_syncstatusbar_draw, /* options */ get_settings_list, find_setting, option_screen, set_option, set_bool_options, set_int, set_bool, #ifdef HAVE_LCD_COLOR set_color, #endif /* action handling */ get_custom_action, get_action, #ifdef HAVE_TOUCHSCREEN action_get_touchscreen_press, #endif action_userabort, /* power */ battery_level, battery_level_safe, battery_time, battery_voltage, #if CONFIG_CHARGING charger_inserted, # if CONFIG_CHARGING >= CHARGING_MONITOR charging_state, # endif #endif #ifdef HAVE_USB_POWER usb_powered, #endif /* misc */ #if (CONFIG_PLATFORM & PLATFORM_NATIVE) __errno, #endif srand, rand, (qsort_func)qsort, kbd_input, get_time, set_time, #if CONFIG_RTC mktime, #endif plugin_get_buffer, plugin_get_audio_buffer, /* defined in plugin.c */ plugin_release_audio_buffer, /* defined in plugin.c */ plugin_tsr, /* defined in plugin.c */ plugin_get_current_filename, #if defined(DEBUG) || defined(SIMULATOR) debugf, #endif #ifdef ROCKBOX_HAS_LOGF _logf, #endif &global_settings, &global_status, talk_disable, #if CONFIG_CODEC == SWCODEC codec_thread_do_callback, codec_load_file, codec_run_proc, codec_close, get_codec_filename, find_array_ptr, remove_array_ptr, round_value_to_list32, #endif /* CONFIG_CODEC == SWCODEC */ get_metadata, mp3info, count_mp3_frames, create_xing_header, find_next_frame, #if (CONFIG_CODEC == MAS3587F) || (CONFIG_CODEC == MAS3539F) peak_meter_scale_value, peak_meter_set_use_dbfs, peak_meter_get_use_dbfs, #endif #ifdef HAVE_LCD_BITMAP read_bmp_file, read_bmp_fd, #ifdef HAVE_JPEG read_jpeg_file, read_jpeg_fd, #endif screen_dump_set_hook, #endif show_logo, tree_get_context, tree_get_entries, tree_get_entry_at, set_current_file, set_dirfilter, #ifdef HAVE_WHEEL_POSITION wheel_status, wheel_send_events, #endif #ifdef IRIVER_H100_SERIES /* Routines for the iriver_flash -plugin. */ detect_original_firmware, detect_flashed_ramimage, detect_flashed_romimage, #endif led, #if (CONFIG_CODEC == SWCODEC) bufopen, bufalloc, bufclose, bufseek, bufadvance, bufread, bufgetdata, bufgettail, bufcuttail, buf_handle_offset, buf_set_base_handle, buf_used, #endif #ifdef HAVE_TAGCACHE tagcache_search, tagcache_search_set_uniqbuf, tagcache_search_add_filter, tagcache_get_next, tagcache_retrieve, tagcache_search_finish, tagcache_get_numeric, #if defined(HAVE_TC_RAMCACHE) && defined(HAVE_DIRCACHE) tagcache_fill_tags, #endif #endif #ifdef HAVE_ALBUMART search_albumart_files, #endif #ifdef HAVE_SEMAPHORE_OBJECTS semaphore_init, semaphore_wait, semaphore_release, #endif rbversion, root_menu_get_options, root_menu_set_default, root_menu_write_to_cfg, root_menu_load_from_cfg, settings_save, /* new stuff at the end, sort into place next time the API gets incompatible */ }; static int plugin_buffer_handle; int plugin_load(const char* plugin, const void* parameter) { struct plugin_header *p_hdr; struct lc_header *hdr; if (current_plugin_handle && pfn_tsr_exit) { /* if we have a resident old plugin and a callback */ if (pfn_tsr_exit(!strcmp(current_plugin, plugin)) == false ) { /* not allowing another plugin to load */ return PLUGIN_OK; } lc_close(current_plugin_handle); current_plugin_handle = pfn_tsr_exit = NULL; if (plugin_buffer_handle > 0) plugin_buffer_handle = core_free(plugin_buffer_handle); } splash(0, ID2P(LANG_WAIT)); strcpy(current_plugin, plugin); current_plugin_handle = lc_open(plugin, pluginbuf, PLUGIN_BUFFER_SIZE); if (current_plugin_handle == NULL) { splashf(HZ*2, str(LANG_PLUGIN_CANT_OPEN), plugin); return -1; } p_hdr = lc_get_header(current_plugin_handle); hdr = p_hdr ? &p_hdr->lc_hdr : NULL; if (hdr == NULL || hdr->magic != PLUGIN_MAGIC || hdr->target_id != TARGET_ID #if (CONFIG_PLATFORM & PLATFORM_NATIVE) || hdr->load_addr != pluginbuf || hdr->end_addr > pluginbuf + PLUGIN_BUFFER_SIZE #endif ) { lc_close(current_plugin_handle); splash(HZ*2, str(LANG_PLUGIN_WRONG_MODEL)); return -1; } if (hdr->api_version > PLUGIN_API_VERSION || hdr->api_version < PLUGIN_MIN_API_VERSION) { lc_close(current_plugin_handle); splash(HZ*2, str(LANG_PLUGIN_WRONG_VERSION)); return -1; } #if (CONFIG_PLATFORM & PLATFORM_NATIVE) plugin_size = hdr->end_addr - pluginbuf; #else plugin_size = 0; #endif *(p_hdr->api) = &rockbox_api; lcd_clear_display(); lcd_update(); #ifdef HAVE_REMOTE_LCD lcd_remote_clear_display(); lcd_remote_update(); #endif push_current_activity(ACTIVITY_PLUGIN); /* some plugins assume the entry cache doesn't move and save pointers to it * they should be fixed properly instead of this lock */ tree_lock_cache(tree_get_context()); FOR_NB_SCREENS(i) viewportmanager_theme_enable(i, false, NULL); #ifdef HAVE_TOUCHSCREEN touchscreen_set_mode(TOUCHSCREEN_BUTTON); #endif /* allow voice to back off if the plugin needs lots of memory */ talk_buffer_set_policy(TALK_BUFFER_LOOSE); #ifdef HAVE_PLUGIN_CHECK_OPEN_CLOSE open_files = 0; #endif int rc = p_hdr->entry_point(parameter); tree_unlock_cache(tree_get_context()); pop_current_activity(); if (!pfn_tsr_exit) { /* close handle if plugin is no tsr one */ lc_close(current_plugin_handle); current_plugin_handle = NULL; if (plugin_buffer_handle > 0) plugin_buffer_handle = core_free(plugin_buffer_handle); } talk_buffer_set_policy(TALK_BUFFER_DEFAULT); /* Go back to the global setting in case the plugin changed it */ #ifdef HAVE_TOUCHSCREEN touchscreen_set_mode(global_settings.touch_mode); #endif #ifdef HAVE_LCD_BITMAP screen_helper_setfont(FONT_UI); #if LCD_DEPTH > 1 #ifdef HAVE_LCD_COLOR lcd_set_drawinfo(DRMODE_SOLID, global_settings.fg_color, global_settings.bg_color); #else lcd_set_drawinfo(DRMODE_SOLID, LCD_DEFAULT_FG, LCD_DEFAULT_BG); #endif #else /* LCD_DEPTH == 1 */ lcd_set_drawmode(DRMODE_SOLID); #endif /* LCD_DEPTH */ #endif /* HAVE_LCD_BITMAP */ #ifdef HAVE_REMOTE_LCD #if LCD_REMOTE_DEPTH > 1 lcd_remote_set_drawinfo(DRMODE_SOLID, LCD_REMOTE_DEFAULT_FG, LCD_REMOTE_DEFAULT_BG); #else lcd_remote_set_drawmode(DRMODE_SOLID); #endif #endif lcd_clear_display(); #ifdef HAVE_REMOTE_LCD lcd_remote_clear_display(); #endif FOR_NB_SCREENS(i) viewportmanager_theme_undo(i, true); #ifdef HAVE_PLUGIN_CHECK_OPEN_CLOSE if(open_files != 0 && !current_plugin_handle) { int fd; logf("Plugin '%s' leaks file handles", plugin); static const char *lines[] = { ID2P(LANG_PLUGIN_ERROR), "#leak-file-handles" }; static const struct text_message message={ lines, 2 }; button_clear_queue(); /* Empty the keyboard buffer */ gui_syncyesno_run(&message, NULL, NULL); for(fd=0; fd < MAX_OPEN_FILES; fd++) if(open_files & (1<= PLUGIN_BUFFER_SIZE) return NULL; *buffer_size = PLUGIN_BUFFER_SIZE-plugin_size; buffer_pos = plugin_size; } else { *buffer_size = PLUGIN_BUFFER_SIZE; buffer_pos = 0; } return &pluginbuf[buffer_pos]; } /* Returns a pointer to the mp3 buffer. Playback gets stopped, to avoid conflicts. Talk buffer is stolen as well. */ static void* plugin_get_audio_buffer(size_t *buffer_size) { /* dummy ops with no callbacks, needed because by * default buflib buffers can be moved around which must be avoided */ static struct buflib_callbacks dummy_ops; plugin_buffer_handle = core_alloc_maximum("plugin audio buf", buffer_size, &dummy_ops); return core_get_data(plugin_buffer_handle); } static void plugin_release_audio_buffer(void) { if (plugin_buffer_handle > 0) plugin_buffer_handle = core_free(plugin_buffer_handle); } /* The plugin wants to stay resident after leaving its main function, e.g. runs from timer or own thread. The callback is registered to later instruct it to free its resources before a new plugin gets loaded. */ static void plugin_tsr(bool (*exit_callback)(bool)) { pfn_tsr_exit = exit_callback; /* remember the callback for later */ } char *plugin_get_current_filename(void) { return current_plugin; } static int open_wrapper(const char* pathname, int flags, ...) { /* we don't have an 'open' function. it's a define. and we need * the real file_open, hence PREFIX() doesn't work here */ int fd; #if (CONFIG_PLATFORM & PLATFORM_HOSTED) if (flags & O_CREAT) { va_list ap; va_start(ap, flags); fd = open(pathname, flags, va_arg(ap, unsigned int)); va_end(ap); } else fd = open(pathname, flags); #else fd = file_open(pathname,flags); #endif #ifdef HAVE_PLUGIN_CHECK_OPEN_CLOSE if(fd >= 0) open_files |= 1<= 0) open_files &= (~(1<= 0) open_files |= (1<