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rockbox/apps/plugin.c
Solomon Peachy fe2d52cc7d pcm: Get rid of pcm_play_pause() and associated APIs 
Nothing in the core has used it for some time.  It's exported to the
plugin API but the last plugins to use it were switched to the mixer API
back in 2011.

This allows us to get rid of pcm_play_dma_pause() from all audio drivers

Change-Id: Ic3fa02592316f84963e41d792d1cabb436d1ff6b
2020-10-31 01:18:27 +00:00

1028 lines
24 KiB
C
Raw Blame History

/***************************************************************************
* __________ __ ___.
* 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.
*
****************************************************************************/
#define DIRFUNCTIONS_DEFINED
#define FILEFUNCTIONS_DEFINED
#include "plugin.h"
#include "open_plugin.h"
#include <ctype.h>
#include <string.h>
#include <stdlib.h>
#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 "pathfuncs.h"
#include "load_code.h"
#include "file.h"
#if CONFIG_CHARGING
#include "power.h"
#endif
#include "scrollbar.h"
#include "peakmeter.h"
#include "bmp.h"
#include "bidi.h"
#ifdef USB_ENABLE_HID
#include "usbstack/usb_hid.h"
#endif
#define WRAPPER(_x_) _x_ ## _wrapper
#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);
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));
#ifdef HAVE_PLUGIN_CHECK_OPEN_CLOSE
/* File handle leak prophylaxis */
#include "bitarray.h"
#include "file_internal.h" /* for MAX_OPEN_FILES */
#define PCOC_WRAPPER(_x_) WRAPPER(_x_)
BITARRAY_TYPE_DECLARE(plugin_check_open_close_bitmap_t, open_files_bitmap,
MAX_OPEN_FILES)
static plugin_check_open_close_bitmap_t open_files_bitmap;
static void plugin_check_open_close__enter(void)
{
if (!current_plugin_handle)
open_files_bitmap_clear(&open_files_bitmap);
}
static void plugin_check_open_close__open(int fildes)
{
if (fildes >= 0)
open_files_bitmap_set_bit(&open_files_bitmap, fildes);
}
static void plugin_check_open_close__close(int fildes)
{
if (fildes < 0)
return;
if (!open_files_bitmap_test_bit(&open_files_bitmap, fildes))
{
logf("double close from plugin");
}
open_files_bitmap_clear_bit(&open_files_bitmap, fildes);
}
static int WRAPPER(open)(const char *path, int oflag, ...)
{
int fildes = FS_PREFIX(open)(path, oflag __OPEN_MODE_ARG);
plugin_check_open_close__open(fildes);
return fildes;
}
static int WRAPPER(creat)(const char *path, mode_t mode)
{
int fildes = FS_PREFIX(creat)(path __CREAT_MODE_ARG);
plugin_check_open_close__open(fildes);
return fildes;
(void)mode;
}
static int WRAPPER(close)(int fildes)
{
int rc = FS_PREFIX(close)(fildes);
if (rc >= 0)
plugin_check_open_close__close(fildes);
return rc;
}
static void plugin_check_open_close__exit(void)
{
if (current_plugin_handle)
return;
if (open_files_bitmap_is_clear(&open_files_bitmap))
return;
logf("Plugin '%s' leaks file handles", current_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_EACH_BITARRAY_SET_BIT(&open_files_bitmap, fildes)
WRAPPER(close)(fildes);
}
#else /* !HAVE_PLUGIN_CHECK_OPEN_CLOSE */
#define PCOC_WRAPPER(_x_) FS_PREFIX(_x_)
#define plugin_check_open_close__enter()
#define plugin_check_open_close__exit()
#endif /* HAVE_PLUGIN_CHECK_OPEN_CLOSE */
static const struct plugin_api rockbox_api = {
rbversion,
&global_settings,
&global_status,
language_strings,
/* lcd */
splash,
splashf,
#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,
lcd_set_viewport,
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,
is_diacritic,
font_get_bits,
font_load,
font_unload,
font_get,
font_getstringsize,
font_get_width,
screen_clear_area,
gui_scrollbar_draw,
get_codepage_name,
#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_update,
lcd_remote_update_rect,
#if (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
#endif /* HAVE_REMOTE_LCD */
#if NB_SCREENS == 2
{&screens[SCREEN_MAIN], &screens[SCREEN_REMOTE]},
#else
{&screens[SCREEN_MAIN]},
#endif
viewport_set_defaults,
viewportmanager_theme_enable,
viewportmanager_theme_undo,
viewport_set_fullscreen,
viewport_set_buffer,
#ifdef HAVE_BACKLIGHT
/* lcd backlight */
/* For OLED targets like the Sansa Clip, the backlight_* functions control
* the display enable, which has essentially the same effect. */
is_backlight_on,
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
#ifdef HAVE_REMOTE_LCD
remote_backlight_on,
remote_backlight_off,
remote_backlight_set_timeout,
#if CONFIG_CHARGING
remote_backlight_set_timeout_plugged,
#endif
#endif /* HAVE_REMOTE_LCD */
#endif /* HAVE_BACKLIGHT */
/* list */
gui_synclist_init,
gui_synclist_set_nb_items,
gui_synclist_set_voice_callback,
gui_synclist_set_icon_callback,
gui_synclist_get_nb_items,
gui_synclist_get_sel_pos,
gui_synclist_draw,
gui_synclist_speak_item,
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,
/* action handling */
get_custom_action,
get_action,
#ifdef HAVE_TOUCHSCREEN
action_get_touchscreen_press,
#endif
action_userabort,
/* 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_SW_POWEROFF
button_set_sw_poweroff_state,
button_get_sw_poweroff_state,
#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,
PCOC_WRAPPER(open),
PCOC_WRAPPER(creat),
PCOC_WRAPPER(close),
FS_PREFIX(read),
FS_PREFIX(lseek),
FS_PREFIX(write),
FS_PREFIX(remove),
FS_PREFIX(rename),
FS_PREFIX(ftruncate),
FS_PREFIX(filesize),
fdprintf,
read_line,
settings_parseline,
storage_sleep,
STORAGE_FUNCTION(spin),
STORAGE_FUNCTION(spindown),
#if USING_STORAGE_CALLBACK
register_storage_idle_func,
unregister_storage_idle_func,
#endif /* USING_STORAGE_CALLBACK */
reload_directory,
create_numbered_filename,
FS_PREFIX(file_exists),
strip_extension,
crc_32,
filetype_get_attr,
/* dir */
FS_PREFIX(opendir),
FS_PREFIX(closedir),
FS_PREFIX(readdir),
FS_PREFIX(mkdir),
FS_PREFIX(rmdir),
FS_PREFIX(dir_exists),
dir_get_info,
/* browsing */
browse_context_init,
rockbox_browse,
tree_get_context,
tree_get_entries,
tree_get_entry_at,
set_current_file,
set_dirfilter,
/* talking */
talk_id,
talk_file,
talk_file_or_spell,
talk_dir_or_spell,
talk_number,
talk_value,
talk_spell,
talk_time,
talk_date,
talk_disable,
talk_shutup,
talk_force_shutup,
talk_force_enqueue_next,
/* kernel/ system */
#if defined(CPU_ARM) && CONFIG_PLATFORM & PLATFORM_NATIVE
__div0,
#endif
sleep,
yield,
&current_tick,
default_event_handler,
default_event_handler_ex,
create_thread,
thread_self,
thread_exit,
thread_wait,
thread_thaw,
#ifdef HAVE_PRIORITY_SCHEDULING
thread_set_priority,
#endif
mutex_init,
mutex_lock,
mutex_unlock,
#ifdef HAVE_SEMAPHORE_OBJECTS
semaphore_init,
semaphore_wait,
semaphore_release,
#endif
reset_poweroff_timer,
set_sleeptimer_duration, /*stub*/
get_sleep_timer, /*stub*/
#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,
queue_enable_queue_send,
queue_empty,
queue_wait,
queue_send,
queue_reply,
#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 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_current, /*stub*/
sound_default,
sound_min,
sound_max,
sound_unit,
sound_val2phys,
#ifdef AUDIOHW_HAVE_EQ
sound_enum_hw_eq_band_setting,
#endif
#if defined (HAVE_PITCHCONTROL)
sound_set_pitch,
#endif
&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_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,
pcmbuf_fade,
system_sound_play,
keyclick_click,
/* metadata */
get_metadata,
mp3info,
count_mp3_frames,
create_xing_header,
find_next_frame,
#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
tagcache_get_stat,
#endif /* HAVE_TAGCACHE */
#ifdef HAVE_ALBUMART
search_albumart_files,
#endif
/* playback control */
playlist_get_current,
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,
/* menu */
root_menu_get_options,
do_menu,
root_menu_set_default,
root_menu_write_to_cfg,
root_menu_load_from_cfg,
/* options */
get_settings_list,
find_setting,
settings_save,
option_screen,
set_option,
set_bool_options,
set_int,
set_int_ex,
set_bool,
#ifdef HAVE_LCD_COLOR
set_color,
#endif
/* power */
battery_level,
battery_level_safe,
battery_time,
battery_voltage,
#if CONFIG_CHARGING
charger_inserted,
# if CONFIG_CHARGING >= CHARGING_MONITOR
charging_state,
# endif
#endif
/* usb */
usb_inserted,
usb_acknowledge,
#ifdef USB_ENABLE_HID
usb_hid_send,
#endif
/* misc */
#if (CONFIG_PLATFORM & PLATFORM_NATIVE)
__errno,
#endif
srand,
rand,
(void *)qsort,
kbd_input,
get_time,
gmtime_r,
#if CONFIG_RTC
mktime,
#endif
#if defined(DEBUG) || defined(SIMULATOR)
debugf,
#endif
#ifdef ROCKBOX_HAS_LOGF
_logf,
#endif
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,
read_bmp_file,
read_bmp_fd,
#ifdef HAVE_JPEG
read_jpeg_file,
read_jpeg_fd,
#endif
screen_dump_set_hook,
show_logo,
#ifdef HAVE_WHEEL_POSITION
wheel_status,
wheel_send_events,
#endif
#if defined(IRIVER_H100_SERIES) || defined(IRIVER_H300_SERIES)
/* Routines for the iriver_flash -plugin. */
detect_original_firmware,
detect_flashed_ramimage,
detect_flashed_romimage,
#endif
led,
/*plugin*/
plugin_open,
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,
#ifdef PLUGIN_USE_IRAM
audio_hard_stop,
#endif
/* new stuff at the end, sort into place next time
the API gets incompatible */
};
static int plugin_buffer_handle;
static size_t plugin_buffer_size;
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, ID2P(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, ID2P(LANG_PLUGIN_WRONG_VERSION));
return -1;
}
#if (CONFIG_PLATFORM & PLATFORM_NATIVE)
/* tlsf crashes observed on arm with 0x4 aligned addresses */
plugin_size = ALIGN_UP(hdr->end_addr - pluginbuf, 0x8);
#else
plugin_size = 0;
#endif
*(p_hdr->api) = &rockbox_api;
lcd_set_viewport(NULL);
lcd_clear_display();
lcd_update();
#ifdef HAVE_REMOTE_LCD
lcd_remote_set_viewport(NULL);
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 */
if (!global_settings.talk_menu)
talk_buffer_set_policy(TALK_BUFFER_LOOSE);
plugin_check_open_close__enter();
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
/* restore default vp */
lcd_set_viewport(NULL);
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 */
#ifdef HAVE_REMOTE_LCD
lcd_remote_set_viewport(NULL);
#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);
plugin_check_open_close__exit();
status_save();
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 (current_plugin_handle)
{
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.
*/
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;
if (plugin_buffer_handle <= 0)
{
plugin_buffer_handle = core_alloc_maximum("plugin audio buf",
&plugin_buffer_size,
&dummy_ops);
}
if (buffer_size)
*buffer_size = plugin_buffer_size;
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);
plugin_buffer_size = 0;
}
}
/* 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 */
}
int plugin_open(char *plugin, char *parameter)
{
open_plugin_add_path(ID2P(LANG_OPEN_PLUGIN), plugin, parameter);
return PLUGIN_GOTO_PLUGIN;
}
char *plugin_get_current_filename(void)
{
return current_plugin;
}
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