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rockbox/apps/plugin.c
Michael Sevakis c9bcbe202d Fundamentally rewrite much of the audio DSP. 
Creates a standard buffer passing, local data passing and messaging
system for processing stages. Stages can be moved to their own source
files to reduce clutter and ease assimilation of new ones. dsp.c
becomes dsp_core.c which supports an engine and framework for effects.

Formats and change notifications are passed along with the buffer so
that they arrive at the correct time at each stage in the chain
regardless of the internal delays of a particular one.

Removes restrictions on the number of samples that can be processed at
a time and it pays attention to destination buffer size restrictions
without having to limit input count, which also allows pcmbuf to
remain fuller and safely set its own buffer limits as it sees fit.
There is no longer a need to query input/output counts given a certain
number of input samples; just give it the sizes of the source and
destination buffers.

Works in harmony with stages that are not deterministic in terms of
sample input/output ratio (like both resamplers but most notably
the timestretch). As a result it fixes quirks with timestretch hanging
up with certain settings and it now operates properly throughout its
full settings range.
Change-Id: Ib206ec78f6f6c79259c5af9009fe021d68be9734
Reviewed-on: http://gerrit.rockbox.org/200
Reviewed-by: Michael Sevakis <jethead71@rockbox.org>
Tested-by: Michael Sevakis <jethead71@rockbox.org>
2012-04-29 10:00:56 +02:00

1044 lines
23 KiB
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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 <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 "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
#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 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_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_static_framebuffer[0][0],
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
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)
&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_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_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,
#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,
&current_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_crossfeed_enable,
dsp_eq_enable,
dsp_dither_enable,
#ifdef HAVE_PITCHSCREEN
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,
system_sound_play,
keyclick_click,
#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,
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_PITCHSCREEN)
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,
plugin_tsr,
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,
/* new stuff at the end, sort into place next time
the API gets incompatible */
};
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;
}
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
#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;
}
/* 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<<fd))
close_wrapper(fd);
}
#endif
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.
*/
void* plugin_get_audio_buffer(size_t *buffer_size)
{
audio_stop();
return audio_get_buffer(true, buffer_size);
}
/* 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;
}
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<<fd;
#endif
return fd;
}
#ifdef HAVE_PLUGIN_CHECK_OPEN_CLOSE
static int close_wrapper(int fd)
{
if((~open_files) & (1<<fd))
{
logf("double close from plugin");
}
if(fd >= 0)
open_files &= (~(1<<fd));
return PREFIX(close)(fd);
}
static int creat_wrapper(const char *pathname, mode_t mode)
{
int fd = PREFIX(creat)(pathname, mode);
if(fd >= 0)
open_files |= (1<<fd);
return fd;
}
#endif /* HAVE_PLUGIN_CHECK_OPEN_CLOSE */
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