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rockbox/apps/plugin.c
Thomas Martitz 1016ee4e80 Initial custom statusbar commit. 
The custom statusbar can be used as a WPS for the main UI, using .(r)sbs files. It's using the skin engine and knows all tags the WPS also knows.
The default folder for .sbs is the wps folder to reuse images used in the WPS.
As it can be shown in the WPS also, it's useful to move shared parts to the custom statusbar in order to save skin buffer space.
There are a few restrictions/TODOs:
*) Peak meter doesn't redraw nicely(not frequent enough), as very frequent updates would slow the UI down as hell (some targets fight with it in the WPS already: FS#10686)
*) No touchregion support as the statusbar doesn't have any action handling (it won't fail to parse though).
*) Drawing stuff into the default VP is forbidden (loading images in it is not). You *need* to use viewports for the displaying stuff (parsing fails if no viewport is used).
*) Themes that don't use a custom ui viewport can be fixed up using the new %Vi tag to avoid nasty redraw effectts (you must not draw into it as well, it's used to fix up the ui viewport). %Vi describes the viewport that the lists can use without getting in the way of the statusbar.

Otherwise, it behaves like the classic statusbar, it can be configured in the theme settings, and can be turned off in the wps using %wd.

Note to translaters: When translating LANG_STATUSBAR_CUSTOM, please consider using the same translation as for LANG_CHANNEL_CUSTOM if it's compatible. They could be combined later then.

Flyspray: FS#10566
Author: myself

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@23258 a1c6a512-1295-4272-9138-f99709370657
2009-10-19 15:28:15 +00:00

919 lines
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/***************************************************************************
* __________ __ ___.
* 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 <ctype.h>
#include <string.h>
#include <sprintf.h>
#include <stdlib.h>
#include "debug.h"
#include "i2c.h"
#include "lang.h"
#include "led.h"
#include "keyboard.h"
#include "buffer.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"
#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
#ifdef SIMULATOR
#define PREFIX(_x_) sim_ ## _x_
#else
#define PREFIX
#endif
#ifdef SIMULATOR
static unsigned char pluginbuf[PLUGIN_BUFFER_SIZE];
void *sim_plugin_load(char *plugin, void **pd);
void sim_plugin_close(void *pd);
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
#define sim_plugin_close(x)
extern unsigned char pluginbuf[];
#include "bitswap.h"
#endif
/* for actual plugins only, not for codecs */
static bool plugin_loaded = false;
static int plugin_size = 0;
static bool (*pfn_tsr_exit)(bool reenter) = NULL; /* TSR exit callback */
static char current_plugin[MAX_PATH];
char *plugin_get_current_filename(void);
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_puts,
lcd_puts_scroll,
lcd_stop_scroll,
#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_framebuffer[0][0],
lcd_update_rect,
lcd_set_drawmode,
lcd_get_drawmode,
lcd_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(TOSHIBA_GIGABEAT_S)
lcd_yuv_set_options,
#endif
#endif /* MEMORYSIZE > 2 */
#elif (LCD_DEPTH < 4) && !defined(SIMULATOR)
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
lcd_puts_style,
lcd_puts_scroll_style,
#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)
lcd_activation_set_hook,
&button_queue,
#endif
bidi_l2v,
font_get_bits,
font_load,
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_stop_scroll,
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_puts_style,
lcd_remote_puts_scroll_style,
&lcd_remote_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,
viewportmanager_set_statusbar,
/* 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,
#endif
button_clear_queue,
button_queue_count,
#ifdef HAS_BUTTON_HOLD
button_hold,
#endif
#ifdef HAVE_TOUCHSCREEN
touchscreen_set_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_func)PREFIX(open),
PREFIX(close),
(read_func)PREFIX(read),
PREFIX(lseek),
(creat_func)PREFIX(creat),
(write_func)PREFIX(write),
PREFIX(remove),
PREFIX(rename),
PREFIX(ftruncate),
PREFIX(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,
/* dir */
opendir,
closedir,
readdir,
mkdir,
rmdir,
dir_exists,
/* kernel/ system */
#ifdef CPU_ARM
__div0,
#endif
PREFIX(sleep),
yield,
&current_tick,
default_event_handler,
default_event_handler_ex,
create_thread,
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,
#ifndef SIMULATOR
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 /* !SIMULATOR */
#ifdef HAVE_SCHEDULER_BOOSTCTRL
trigger_cpu_boost,
cancel_cpu_boost,
#endif
#if NUM_CORES > 1
cpucache_flush,
cpucache_invalidate,
#endif
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
#ifdef SIMULATOR
/* 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,
_ctype_,
atoi,
strchr,
strcat,
memchr,
memcmp,
strcasestr,
strtok_r,
/* unicode stuff */
utf8decode,
iso_decode,
utf16LEdecode,
utf16BEdecode,
utf8encode,
utf8length,
utf8seek,
/* sound */
sound_set,
sound_default,
sound_min,
sound_max,
sound_unit,
sound_val2phys,
#ifndef SIMULATOR
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_play_lock,
pcm_play_unlock,
#ifdef HAVE_RECORDING
&rec_freq_sampr[0],
pcm_init_recording,
pcm_close_recording,
pcm_record_data,
pcm_record_more,
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,
dsp_set_eq,
dsp_dither_enable,
dsp_configure,
dsp_process,
dsp_input_count,
dsp_output_count,
#endif /* CONFIG_CODEC == SWCODEC */
/* playback control */
playlist_amount,
playlist_resume,
playlist_start,
playlist_add,
playlist_sync,
playlist_remove_all_tracks,
playlist_create,
playlist_insert_track,
playlist_insert_directory,
playlist_shuffle,
PREFIX(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)
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,
#ifndef SIMULATOR
battery_voltage,
#endif
#if CONFIG_CHARGING
charger_inserted,
# if CONFIG_CHARGING >= CHARGING_MONITOR
charging_state,
# endif
#endif
#ifdef HAVE_USB_POWER
usb_powered,
#endif
/* misc */
srand,
rand,
(qsort_func)qsort,
kbd_input,
get_time,
set_time,
#if CONFIG_RTC
mktime,
#endif
plugin_get_buffer,
plugin_get_audio_buffer,
plugin_tsr,
plugin_get_current_filename,
#ifdef PLUGIN_USE_IRAM
plugin_iram_init,
#endif
#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,
get_codec_filename,
#endif
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,
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_get_offset,
buf_handle_offset,
buf_request_buffer_handle,
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,
#ifdef HAVE_TC_RAMCACHE
tagcache_fill_tags,
#endif
#endif
#ifdef HAVE_ALBUMART
search_albumart_files,
#endif
#ifdef HAVE_SEMAPHORE_OBJECTS
semaphore_init,
semaphore_wait,
semaphore_release,
#endif
appsversion,
/* new stuff at the end, sort into place next time
the API gets incompatible */
#ifdef HAVE_BUTTON_DATA
button_status_wdata,
#endif
};
int plugin_load(const char* plugin, const void* parameter)
{
int rc, i;
int oldbars;
struct plugin_header *hdr;
struct viewport plugin_vp[NB_SCREENS];
#ifdef SIMULATOR
void *pd;
#else /* !SIMULATOR */
int fd;
ssize_t readsize;
#if NUM_CORES > 1
unsigned my_core;
#endif
#endif /* !SIMULATOR */
#if LCD_DEPTH > 1
fb_data* old_backdrop;
#endif
if (pfn_tsr_exit != NULL) /* if we have a resident old plugin: */
{
if (pfn_tsr_exit(!strcmp(current_plugin, plugin)) == false )
{
/* not allowing another plugin to load */
return PLUGIN_OK;
}
pfn_tsr_exit = NULL;
plugin_loaded = false;
}
splash(0, ID2P(LANG_WAIT));
strcpy(current_plugin, plugin);
#ifdef SIMULATOR
hdr = sim_plugin_load((char *)plugin, &pd);
if (pd == NULL) {
splashf(HZ*2, str(LANG_PLUGIN_CANT_OPEN), plugin);
return -1;
}
if (hdr == NULL
|| hdr->magic != PLUGIN_MAGIC
|| hdr->target_id != TARGET_ID) {
sim_plugin_close(pd);
splash(HZ*2, str(LANG_PLUGIN_WRONG_MODEL));
return -1;
}
if (hdr->api_version > PLUGIN_API_VERSION
|| hdr->api_version < PLUGIN_MIN_API_VERSION) {
sim_plugin_close(pd);
splash(HZ*2, str(LANG_PLUGIN_WRONG_VERSION));
return -1;
}
#else
fd = open(plugin, O_RDONLY);
if (fd < 0) {
splashf(HZ*2, str(LANG_PLUGIN_CANT_OPEN), plugin);
return fd;
}
#if NUM_CORES > 1
/* Make sure COP cache is flushed and invalidated before loading */
my_core = switch_core(CURRENT_CORE ^ 1);
cpucache_invalidate();
switch_core(my_core);
#endif
readsize = read(fd, pluginbuf, PLUGIN_BUFFER_SIZE);
close(fd);
if (readsize < 0) {
splashf(HZ*2, str(LANG_READ_FAILED), plugin);
return -1;
}
hdr = (struct plugin_header *)pluginbuf;
if ((unsigned)readsize <= sizeof(struct plugin_header)
|| hdr->magic != PLUGIN_MAGIC
|| hdr->target_id != TARGET_ID
|| hdr->load_addr != pluginbuf
|| hdr->end_addr > pluginbuf + PLUGIN_BUFFER_SIZE) {
splash(HZ*2, str(LANG_PLUGIN_WRONG_MODEL));
return -1;
}
if (hdr->api_version > PLUGIN_API_VERSION
|| hdr->api_version < PLUGIN_MIN_API_VERSION) {
splash(HZ*2, str(LANG_PLUGIN_WRONG_VERSION));
return -1;
}
plugin_size = hdr->end_addr - pluginbuf;
/* zero out bss area only, above guards end of pluginbuf */
if (plugin_size > readsize)
memset(pluginbuf + readsize, 0, plugin_size - readsize);
#endif
*(hdr->api) = &rockbox_api;
plugin_loaded = true;
#if defined HAVE_LCD_BITMAP && LCD_DEPTH > 1
old_backdrop = lcd_get_backdrop();
#endif
lcd_clear_display();
lcd_update();
#ifdef HAVE_REMOTE_LCD
lcd_remote_clear_display();
lcd_remote_update();
#endif
oldbars = viewportmanager_set_statusbar(VP_SB_HIDE_ALL);
FOR_NB_SCREENS(i)
viewport_set_fullscreen(&plugin_vp[i], i);
viewport_set_current_vp(plugin_vp);
cpucache_invalidate();
#ifdef HAVE_TOUCHSCREEN
touchscreen_set_mode(TOUCHSCREEN_BUTTON);
#endif
rc = hdr->entry_point(parameter);
/* Go back to the global setting in case the plugin changed it */
#ifdef HAVE_TOUCHSCREEN
touchscreen_set_mode(global_settings.touch_mode);
#endif
button_clear_queue();
#ifdef HAVE_LCD_BITMAP
lcd_setfont(FONT_UI);
#if LCD_DEPTH > 1
lcd_set_backdrop(old_backdrop);
#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
viewportmanager_set_statusbar(oldbars);
viewport_set_current_vp(NULL);
if (rc != PLUGIN_GOTO_WPS)
{
send_event(GUI_EVENT_REFRESH, NULL);
}
if (pfn_tsr_exit == NULL)
plugin_loaded = false;
sim_plugin_close(pd);
if (rc == PLUGIN_ERROR)
splash(HZ*2, str(LANG_PLUGIN_ERROR));
return rc;
}
/* Returns a pointer to the portion of the plugin buffer that is not already
being used. If no plugin is loaded, returns the entire plugin buffer */
void* plugin_get_buffer(size_t *buffer_size)
{
int buffer_pos;
if (plugin_loaded)
{
if (plugin_size >= 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.
*/
void* plugin_get_audio_buffer(size_t *buffer_size)
{
#if CONFIG_CODEC == SWCODEC
return audio_get_buffer(true, buffer_size);
#else
audio_stop();
talk_buffer_steal(); /* we use the mp3 buffer, need to tell */
*buffer_size = audiobufend - audiobuf;
return audiobuf;
#endif
}
#ifdef PLUGIN_USE_IRAM
/* Initializes plugin IRAM */
void plugin_iram_init(char *iramstart, char *iramcopy, size_t iram_size,
char *iedata, size_t iedata_size)
{
/* We need to stop audio playback in order to use codec IRAM */
audio_hard_stop();
memcpy(iramstart, iramcopy, iram_size);
memset(iedata, 0, iedata_size);
memset(iramcopy, 0, iram_size);
#if NUM_CORES > 1
/* writeback cleared iedata and iramcopy areas */
cpucache_flush();
#endif
}
#endif /* PLUGIN_USE_IRAM */
/* 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. */
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;
}
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