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rockbox/apps/gui/gwps.c
Nicolas Pennequin ab90d58801 Introducing the WPS tokenizer ! 
When a WPS file is loaded, it is parsed to an array of tokens, which allows more efficient displaying. More info on the tracker entry : FS #6862.
The parsing code is completely independant and is all in wps_parser.c. The displaying part stays in gwps-common.c.
Debugging code is provided (with the right ifdefs) and is disabled by default.
Overall, the code should be easier to read and maintain. Adding new WPS tags is made quite trivial.


git-svn-id: svn://svn.rockbox.org/rockbox/trunk@13019 a1c6a512-1295-4272-9138-f99709370657
2007-04-04 14:41:40 +00:00

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/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2002 Jerome Kuptz
*
* All files in this archive are subject to the GNU General Public License.
* See the file COPYING in the source tree root for full license agreement.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
****************************************************************************/
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include "config.h"
#include "system.h"
#include "file.h"
#include "lcd.h"
#include "font.h"
#include "backlight.h"
#include "action.h"
#include "kernel.h"
#include "tree.h"
#include "debug.h"
#include "sprintf.h"
#include "settings.h"
#include "gwps.h"
#include "gwps-common.h"
#include "audio.h"
#include "usb.h"
#include "status.h"
#include "main_menu.h"
#include "ata.h"
#include "screens.h"
#include "playlist.h"
#ifdef HAVE_LCD_BITMAP
#include "icons.h"
#include "peakmeter.h"
#endif
#include "action.h"
#include "lang.h"
#include "bookmark.h"
#include "misc.h"
#include "sound.h"
#include "onplay.h"
#include "abrepeat.h"
#include "playback.h"
#include "splash.h"
#include "cuesheet.h"
#if LCD_DEPTH > 1
#include "backdrop.h"
#endif
#include "ata_idle_notify.h"
#include "root_menu.h"
/* currently only on wps_state is needed */
struct wps_state wps_state;
struct gui_wps gui_wps[NB_SCREENS];
static struct wps_data wps_datas[NB_SCREENS];
/* change the path to the current played track */
static void wps_state_update_ctp(const char *path);
/* initial setup of wps_data */
static void wps_state_init(void);
/* initial setup of a wps */
static void gui_wps_init(struct gui_wps *gui_wps);
/* connects a wps with a format-description of the displayed content */
static void gui_wps_set_data(struct gui_wps *gui_wps, struct wps_data *data);
/* connects a wps with a screen */
static void gui_wps_set_disp(struct gui_wps *gui_wps, struct screen *display);
/* connects a wps with a statusbar*/
static void gui_wps_set_statusbar(struct gui_wps *gui_wps, struct gui_statusbar *statusbar);
#ifdef HAVE_LCD_BITMAP
static void gui_wps_set_margin(struct gui_wps *gwps)
{
int offset = 0;
struct wps_data *data = gwps->data;
if(data->wps_sb_tag && data->show_sb_on_wps)
offset = STATUSBAR_HEIGHT;
else if ( global_settings.statusbar && !data->wps_sb_tag)
offset = STATUSBAR_HEIGHT;
gwps->display->setmargins(0, offset);
}
#endif
long gui_wps_show(void)
{
long button = 0;
bool restore = false;
long restoretimer = 0; /* timer to delay screen redraw temporarily */
bool exit = false;
bool update_track = false;
int i;
long last_left = 0, last_right = 0;
action_signalscreenchange();
wps_state_init();
#ifdef HAVE_LCD_CHARCELLS
status_set_audio(true);
status_set_param(false);
#else
FOR_NB_SCREENS(i)
{
gui_wps_set_margin(&gui_wps[i]);
}
#if LCD_DEPTH > 1
show_wps_backdrop();
#endif /* LCD_DEPTH > 1 */
#endif
#ifdef AB_REPEAT_ENABLE
ab_repeat_init();
ab_reset_markers();
#endif
if(audio_status() & AUDIO_STATUS_PLAY)
{
wps_state.id3 = audio_current_track();
wps_state.nid3 = audio_next_track();
if (wps_state.id3) {
if (gui_wps_display())
return 0;
FOR_NB_SCREENS(i)
gui_wps_refresh(&gui_wps[i], 0, WPS_REFRESH_ALL);
wps_state_update_ctp(wps_state.id3->path);
}
restore = true;
}
while ( 1 )
{
bool audio_paused = (audio_status() & AUDIO_STATUS_PAUSE)?true:false;
/* did someone else (i.e power thread) change audio pause mode? */
if (wps_state.paused != audio_paused) {
wps_state.paused = audio_paused;
/* if another thread paused audio, we are probably in car mode,
about to shut down. lets save the settings. */
if (wps_state.paused) {
settings_save();
#if !defined(HAVE_RTC_RAM) && !defined(HAVE_SW_POWEROFF)
call_ata_idle_notifys(true);
#endif
}
}
#ifdef HAVE_LCD_BITMAP
/* when the peak meter is enabled we want to have a
few extra updates to make it look smooth. On the
other hand we don't want to waste energy if it
isn't displayed */
bool pm=false;
FOR_NB_SCREENS(i)
{
if(gui_wps[i].data->peak_meter_enabled)
pm = true;
}
if (pm) {
long next_refresh = current_tick;
long next_big_refresh = current_tick + HZ / 5;
button = BUTTON_NONE;
while (TIME_BEFORE(current_tick, next_big_refresh)) {
button = get_action(CONTEXT_WPS|ALLOW_SOFTLOCK,TIMEOUT_NOBLOCK);
if (button != ACTION_NONE) {
break;
}
peak_meter_peek();
sleep(0); /* Sleep until end of current tick. */
if (TIME_AFTER(current_tick, next_refresh)) {
FOR_NB_SCREENS(i)
{
if(gui_wps[i].data->peak_meter_enabled)
gui_wps_refresh(&gui_wps[i], 0,
WPS_REFRESH_PEAK_METER);
next_refresh += HZ / PEAK_METER_FPS;
}
}
}
}
/* The peak meter is disabled
-> no additional screen updates needed */
else {
button = get_action(CONTEXT_WPS|ALLOW_SOFTLOCK,HZ/5);
}
#else
button = get_action(CONTEXT_WPS|ALLOW_SOFTLOCK,HZ/5);
#endif
/* Exit if audio has stopped playing. This can happen if using the
sleep timer with the charger plugged or if starting a recording
from F1 */
if (!audio_status())
exit = true;
#ifdef ACTION_WPSAB_SINGLE
if (!global_settings.party_mode && ab_repeat_mode_enabled())
{
static int wps_ab_state = 0;
if (button == ACTION_WPSAB_SINGLE)
{
switch (wps_ab_state)
{
case 0: /* set the A spot */
button = ACTION_WPS_ABSETA_PREVDIR;
break;
case 1: /* set the B spot */
button = ACTION_WPS_ABSETB_NEXTDIR;
break;
case 2:
button = ACTION_WPSAB_RESET;
break;
}
wps_ab_state = (wps_ab_state+1) % 3;
}
}
#endif
switch(button)
{
case ACTION_WPS_CONTEXT:
#if LCD_DEPTH > 1
show_main_backdrop();
#endif
action_signalscreenchange();
if (onplay(wps_state.id3->path, TREE_ATTR_MPA, CONTEXT_WPS)
== ONPLAY_MAINMENU)
return GO_TO_ROOT;
#if LCD_DEPTH > 1
show_wps_backdrop();
#endif
#ifdef HAVE_LCD_BITMAP
FOR_NB_SCREENS(i)
{
gui_wps_set_margin(&gui_wps[i]);
}
#endif
restore = true;
break;
case ACTION_WPS_BROWSE:
#ifdef HAVE_LCD_CHARCELLS
status_set_record(false);
status_set_audio(false);
#endif
FOR_NB_SCREENS(i)
gui_wps[i].display->stop_scroll();
action_signalscreenchange();
return GO_TO_PREVIOUS_BROWSER;
break;
/* play/pause */
case ACTION_WPS_PLAY:
if (global_settings.party_mode)
break;
if ( wps_state.paused )
{
wps_state.paused = false;
if ( global_settings.fade_on_stop )
fade(1);
else
audio_resume();
}
else
{
wps_state.paused = true;
if ( global_settings.fade_on_stop )
fade(0);
else
audio_pause();
settings_save();
#if !defined(HAVE_RTC_RAM) && !defined(HAVE_SW_POWEROFF)
call_ata_idle_notifys(true); /* make sure resume info is saved */
#endif
}
break;
/* volume up */
case ACTION_WPS_VOLUP:
{
global_settings.volume++;
bool res = false;
setvol();
FOR_NB_SCREENS(i)
{
if(update_onvol_change(&gui_wps[i]))
res = true;
}
if (res) {
restore = true;
restoretimer = current_tick + HZ;
}
}
break;
/* volume down */
case ACTION_WPS_VOLDOWN:
{
global_settings.volume--;
setvol();
bool res = false;
FOR_NB_SCREENS(i)
{
if(update_onvol_change(&gui_wps[i]))
res = true;
}
if (res) {
restore = true;
restoretimer = current_tick + HZ;
}
}
break;
/* fast forward
OR next dir if this is straight after ACTION_WPS_SKIPNEXT */
case ACTION_WPS_SEEKFWD:
if (global_settings.party_mode)
break;
if (current_tick -last_right < HZ)
{
if (cuesheet_is_enabled() && wps_state.id3->cuesheet_type)
{
audio_next();
}
else
{
audio_next_dir();
}
}
else ffwd_rew(ACTION_WPS_SEEKFWD);
last_right = 0;
break;
/* fast rewind
OR prev dir if this is straight after ACTION_WPS_SKIPPREV */
case ACTION_WPS_SEEKBACK:
if (global_settings.party_mode)
break;
if (current_tick -last_left < HZ)
{
if (cuesheet_is_enabled() && wps_state.id3->cuesheet_type)
{
if (!wps_state.paused)
#if (CONFIG_CODEC == SWCODEC)
audio_pre_ff_rewind();
#else
audio_pause();
#endif
audio_ff_rewind(0);
}
else
{
audio_prev_dir();
}
}
else ffwd_rew(ACTION_WPS_SEEKBACK);
last_left = 0;
break;
/* prev / restart */
case ACTION_WPS_SKIPPREV:
if (global_settings.party_mode)
break;
last_left = current_tick;
update_track = true;
#ifdef AB_REPEAT_ENABLE
/* if we're in A/B repeat mode and the current position
is past the A marker, jump back to the A marker... */
if ( ab_repeat_mode_enabled() )
{
if ( ab_after_A_marker(wps_state.id3->elapsed) )
{
ab_jump_to_A_marker();
break;
#if (AB_REPEAT_ENABLE == 2)
} else {
ab_reset_markers();
#endif
}
}
/* ...otherwise, do it normally */
#endif
if (!wps_state.id3 || (wps_state.id3->elapsed < 3*1000)) {
audio_prev();
}
else {
if (cuesheet_is_enabled() && wps_state.id3->cuesheet_type)
{
curr_cuesheet_skip(-1, wps_state.id3->elapsed);
break;
}
if (!wps_state.paused)
#if (CONFIG_CODEC == SWCODEC)
audio_pre_ff_rewind();
#else
audio_pause();
#endif
audio_ff_rewind(0);
#if (CONFIG_CODEC != SWCODEC)
if (!wps_state.paused)
audio_resume();
#endif
}
break;
/* next */
case ACTION_WPS_SKIPNEXT:
if (global_settings.party_mode)
break;
last_right = current_tick;
update_track = true;
#ifdef AB_REPEAT_ENABLE
/* if we're in A/B repeat mode and the current position is
before the A marker, jump to the A marker... */
if ( ab_repeat_mode_enabled() )
{
if ( ab_before_A_marker(wps_state.id3->elapsed) )
{
ab_jump_to_A_marker();
break;
#if (AB_REPEAT_ENABLE == 2)
} else {
ab_reset_markers();
#endif
}
}
/* ...otherwise, do it normally */
#endif
/* take care of if we're playing a cuesheet */
if (cuesheet_is_enabled() && wps_state.id3->cuesheet_type)
{
if (curr_cuesheet_skip(1, wps_state.id3->elapsed))
{
/* if the result was false, then we really want
to skip to the next track */
break;
}
}
audio_next();
break;
/* next / prev directories */
/* and set A-B markers if in a-b mode */
case ACTION_WPS_ABSETB_NEXTDIR:
if (global_settings.party_mode)
break;
#if defined(AB_REPEAT_ENABLE)
if (ab_repeat_mode_enabled())
{
ab_set_B_marker(wps_state.id3->elapsed);
ab_jump_to_A_marker();
update_track = true;
}
else
#endif
{
audio_next_dir();
}
break;
case ACTION_WPS_ABSETA_PREVDIR:
if (global_settings.party_mode)
break;
#if defined(AB_REPEAT_ENABLE)
if (ab_repeat_mode_enabled())
ab_set_A_marker(wps_state.id3->elapsed);
else
#endif
{
audio_prev_dir();
}
break;
/* menu key functions */
case ACTION_WPS_MENU:
FOR_NB_SCREENS(i)
gui_wps[i].display->stop_scroll();
return GO_TO_ROOT;
break;
#ifdef HAVE_QUICKSCREEN
case ACTION_WPS_QUICKSCREEN:
#if LCD_DEPTH > 1
show_main_backdrop();
#endif
if (quick_screen_quick(button))
return SYS_USB_CONNECTED;
#if LCD_DEPTH > 1
show_wps_backdrop();
#endif
#ifdef HAVE_LCD_BITMAP
FOR_NB_SCREENS(i)
{
gui_wps_set_margin(&gui_wps[i]);
}
#endif
restore = true;
break;
#endif /* HAVE_QUICKSCREEN */
/* screen settings */
#ifdef BUTTON_F3
case ACTION_F3:
#if LCD_DEPTH > 1
show_main_backdrop();
#endif
if (quick_screen_f3(BUTTON_F3))
return SYS_USB_CONNECTED;
#ifdef HAVE_LCD_BITMAP
FOR_NB_SCREENS(i)
{
gui_wps_set_margin(&gui_wps[i]);
}
#endif
restore = true;
break;
#endif /* BUTTON_F3 */
/* pitch screen */
#ifdef HAVE_PITCHSCREEN
case ACTION_WPS_PITCHSCREEN:
#if LCD_DEPTH > 1
show_main_backdrop();
#endif
action_signalscreenchange();
if (1 == pitch_screen())
return SYS_USB_CONNECTED;
#if LCD_DEPTH > 1
show_wps_backdrop();
#endif
restore = true;
break;
#endif /* HAVE_PITCHSCREEN */
#ifdef AB_REPEAT_ENABLE
/* reset A&B markers */
case ACTION_WPSAB_RESET:
if (ab_repeat_mode_enabled())
{
ab_reset_markers();
update_track = true;
}
break;
#endif /* AB_REPEAT_ENABLE */
/* stop and exit wps */
case ACTION_WPS_STOP:
if (global_settings.party_mode)
break;
exit = true;
break;
case ACTION_WPS_ID3SCREEN:
#if LCD_DEPTH > 1
show_main_backdrop();
#endif
browse_id3();
#if LCD_DEPTH > 1
show_wps_backdrop();
#endif
#ifdef HAVE_LCD_BITMAP
FOR_NB_SCREENS(i)
{
gui_wps_set_margin(&gui_wps[i]);
}
#endif
restore = true;
break;
case ACTION_REDRAW: /* yes are locked, just redraw */
restore = true;
break;
case ACTION_NONE: /* Timeout */
update_track = true;
ffwd_rew(button); /* hopefully fix the ffw/rwd bug */
break;
case SYS_POWEROFF:
bookmark_autobookmark();
#if LCD_DEPTH > 1
show_main_backdrop();
#endif
default_event_handler(SYS_POWEROFF);
break;
default:
if(default_event_handler(button) == SYS_USB_CONNECTED)
return GO_TO_ROOT;
update_track = true;
break;
}
if (update_track)
{
bool update_failed = false;
FOR_NB_SCREENS(i)
{
if(update(&gui_wps[i]))
update_failed = true;
}
if (update_failed)
{
return GO_TO_ROOT;
}
update_track = false;
}
if (exit) {
action_signalscreenchange();
#ifdef HAVE_LCD_CHARCELLS
status_set_record(false);
status_set_audio(false);
#endif
if (global_settings.fade_on_stop)
fade(0);
FOR_NB_SCREENS(i)
gui_wps[i].display->stop_scroll();
bookmark_autobookmark();
audio_stop();
#ifdef AB_REPEAT_ENABLE
ab_reset_markers();
#endif
return GO_TO_PREVIOUS;
}
if ( button )
ata_spin();
if (restore &&
((restoretimer == 0) ||
(restoretimer < current_tick)))
{
restore = false;
restoretimer = 0;
if (gui_wps_display())
{
return GO_TO_ROOT;
}
if (wps_state.id3){
FOR_NB_SCREENS(i)
gui_wps_refresh(&gui_wps[i], 0, WPS_REFRESH_NON_STATIC);
}
}
}
return GO_TO_ROOT; /* unreachable - just to reduce compiler warnings */
}
/* needs checking if needed end*/
/* wps_state */
static void wps_state_init(void)
{
wps_state.ff_rewind = false;
wps_state.paused = false;
wps_state.id3 = NULL;
wps_state.nid3 = NULL;
wps_state.current_track_path[0] = '\0';
}
#if 0
/* these are obviously not used? */
void wps_state_update_ff_rew(bool ff_rew)
{
wps_state.ff_rewind = ff_rew;
}
void wps_state_update_paused(bool paused)
{
wps_state.paused = paused;
}
void wps_state_update_id3_nid3(struct mp3entry *id3, struct mp3entry *nid3)
{
wps_state.id3 = id3;
wps_state.nid3 = nid3;
}
#endif
static void wps_state_update_ctp(const char *path)
{
memcpy(wps_state.current_track_path, path,
sizeof(wps_state.current_track_path));
}
/* wps_state end*/
/* initial setup of a wps */
static void gui_wps_init(struct gui_wps *gui_wps)
{
gui_wps->data = NULL;
gui_wps->display = NULL;
gui_wps->statusbar = NULL;
/* Currently no seperate wps_state needed/possible
so use the only aviable ( "global" ) one */
gui_wps->state = &wps_state;
}
/* connects a wps with a format-description of the displayed content */
static void gui_wps_set_data(struct gui_wps *gui_wps, struct wps_data *data)
{
gui_wps->data = data;
}
/* connects a wps with a screen */
static void gui_wps_set_disp(struct gui_wps *gui_wps, struct screen *display)
{
gui_wps->display = display;
}
static void gui_wps_set_statusbar(struct gui_wps *gui_wps, struct gui_statusbar *statusbar)
{
gui_wps->statusbar = statusbar;
}
/* gui_wps end */
void gui_sync_wps_screen_init(void)
{
int i;
FOR_NB_SCREENS(i)
gui_wps_set_disp(&gui_wps[i], &screens[i]);
}
void gui_sync_wps_init(void)
{
int i;
FOR_NB_SCREENS(i)
{
wps_data_init(&wps_datas[i]);
gui_wps_init(&gui_wps[i]);
gui_wps_set_data(&gui_wps[i], &wps_datas[i]);
gui_wps_set_statusbar(&gui_wps[i], &statusbars.statusbars[i]);
}
#if LCD_DEPTH > 1
unload_wps_backdrop();
#endif
}
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