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rockbox/apps/plugins/stopwatch.c
Thomas Martitz cae4ae2c71 Second try: Introduce plugin_crt0.c that every plugin links. 
It handles exit() properly, calling the handler also when the plugin returns
normally (also make exit() more standard compliant while at it).
It also holds PLUGIN_HEADER, so that it doesn't need to be in each plugin anymore.

To work better together with callbacks passed to rb->default_event_handler_ex() introduce exit_on_usb() which will call the exit handler before showing the usb screen and exit() after it.
In most cases rb->default_event_handler_ex() was passed a callback which was manually called at all other return points. This can now be done via atexit().

In future plugin_crt0.c could also handle clearing bss, initializing iram and more.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@27873 a1c6a512-1295-4272-9138-f99709370657
2010-08-24 14:30:46 +00:00

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/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2004 Mike Holden
*
* 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"
#ifdef HAVE_LCD_BITMAP
#define TIMER_Y 1
#else
#define TIMER_Y 0
#endif
#define LAP_Y TIMER_Y+1
#define MAX_LAPS 64
#define STOPWATCH_FILE PLUGIN_APPS_DIR "/stopwatch.dat"
/* variable button definitions */
#if CONFIG_KEYPAD == RECORDER_PAD
#define STOPWATCH_QUIT BUTTON_OFF
#define STOPWATCH_START_STOP BUTTON_PLAY
#define STOPWATCH_RESET_TIMER BUTTON_LEFT
#define STOPWATCH_LAP_TIMER BUTTON_ON
#define STOPWATCH_SCROLL_UP BUTTON_UP
#define STOPWATCH_SCROLL_DOWN BUTTON_DOWN
#elif CONFIG_KEYPAD == ARCHOS_AV300_PAD
#define STOPWATCH_QUIT BUTTON_OFF
#define STOPWATCH_START_STOP BUTTON_SELECT
#define STOPWATCH_RESET_TIMER BUTTON_LEFT
#define STOPWATCH_LAP_TIMER BUTTON_ON
#define STOPWATCH_SCROLL_UP BUTTON_UP
#define STOPWATCH_SCROLL_DOWN BUTTON_DOWN
#elif CONFIG_KEYPAD == ONDIO_PAD
#define STOPWATCH_QUIT BUTTON_OFF
#define STOPWATCH_START_STOP BUTTON_RIGHT
#define STOPWATCH_RESET_TIMER BUTTON_LEFT
#define STOPWATCH_LAP_TIMER BUTTON_MENU
#define STOPWATCH_SCROLL_UP BUTTON_UP
#define STOPWATCH_SCROLL_DOWN BUTTON_DOWN
#elif CONFIG_KEYPAD == PLAYER_PAD
#define STOPWATCH_QUIT BUTTON_MENU
#define STOPWATCH_START_STOP BUTTON_PLAY
#define STOPWATCH_RESET_TIMER BUTTON_STOP
#define STOPWATCH_LAP_TIMER BUTTON_ON
#define STOPWATCH_SCROLL_UP BUTTON_RIGHT
#define STOPWATCH_SCROLL_DOWN BUTTON_LEFT
#elif (CONFIG_KEYPAD == IRIVER_H100_PAD) || \
(CONFIG_KEYPAD == IRIVER_H300_PAD)
#define STOPWATCH_QUIT BUTTON_OFF
#define STOPWATCH_START_STOP BUTTON_SELECT
#define STOPWATCH_RESET_TIMER BUTTON_DOWN
#define STOPWATCH_LAP_TIMER BUTTON_ON
#define STOPWATCH_SCROLL_UP BUTTON_RIGHT
#define STOPWATCH_SCROLL_DOWN BUTTON_LEFT
#define STOPWATCH_RC_QUIT BUTTON_RC_STOP
#elif (CONFIG_KEYPAD == IPOD_4G_PAD) || \
(CONFIG_KEYPAD == IPOD_3G_PAD) || \
(CONFIG_KEYPAD == IPOD_1G2G_PAD)
#define STOPWATCH_QUIT BUTTON_MENU
#define STOPWATCH_START_STOP BUTTON_SELECT
#define STOPWATCH_RESET_TIMER BUTTON_LEFT
#define STOPWATCH_LAP_TIMER BUTTON_RIGHT
#define STOPWATCH_SCROLL_UP BUTTON_SCROLL_FWD
#define STOPWATCH_SCROLL_DOWN BUTTON_SCROLL_BACK
#elif CONFIG_KEYPAD == IRIVER_IFP7XX_PAD
#define STOPWATCH_QUIT BUTTON_PLAY
#define STOPWATCH_START_STOP BUTTON_MODE
#define STOPWATCH_RESET_TIMER BUTTON_EQ
#define STOPWATCH_LAP_TIMER BUTTON_SELECT
#define STOPWATCH_SCROLL_UP BUTTON_UP
#define STOPWATCH_SCROLL_DOWN BUTTON_DOWN
#elif CONFIG_KEYPAD == IAUDIO_X5M5_PAD
#define STOPWATCH_QUIT BUTTON_POWER
#define STOPWATCH_START_STOP BUTTON_PLAY
#define STOPWATCH_RESET_TIMER BUTTON_REC
#define STOPWATCH_LAP_TIMER BUTTON_SELECT
#define STOPWATCH_SCROLL_UP BUTTON_UP
#define STOPWATCH_SCROLL_DOWN BUTTON_DOWN
#elif CONFIG_KEYPAD == GIGABEAT_PAD
#define STOPWATCH_QUIT BUTTON_POWER
#define STOPWATCH_START_STOP BUTTON_SELECT
#define STOPWATCH_RESET_TIMER BUTTON_A
#define STOPWATCH_LAP_TIMER BUTTON_MENU
#define STOPWATCH_SCROLL_UP BUTTON_UP
#define STOPWATCH_SCROLL_DOWN BUTTON_DOWN
#elif (CONFIG_KEYPAD == SANSA_E200_PAD) || \
(CONFIG_KEYPAD == SANSA_C200_PAD) || \
(CONFIG_KEYPAD == SANSA_CLIP_PAD) || \
(CONFIG_KEYPAD == SANSA_M200_PAD)
#define STOPWATCH_QUIT BUTTON_POWER
#define STOPWATCH_START_STOP BUTTON_RIGHT
#define STOPWATCH_RESET_TIMER BUTTON_LEFT
#define STOPWATCH_LAP_TIMER BUTTON_SELECT
#define STOPWATCH_SCROLL_UP BUTTON_UP
#define STOPWATCH_SCROLL_DOWN BUTTON_DOWN
#elif (CONFIG_KEYPAD == SANSA_FUZE_PAD)
#define STOPWATCH_QUIT (BUTTON_HOME|BUTTON_REPEAT)
#define STOPWATCH_START_STOP BUTTON_RIGHT
#define STOPWATCH_RESET_TIMER BUTTON_LEFT
#define STOPWATCH_LAP_TIMER BUTTON_SELECT
#define STOPWATCH_SCROLL_UP BUTTON_SCROLL_BACK
#define STOPWATCH_SCROLL_DOWN BUTTON_SCROLL_FWD
#elif CONFIG_KEYPAD == IRIVER_H10_PAD
#define STOPWATCH_QUIT BUTTON_POWER
#define STOPWATCH_START_STOP BUTTON_PLAY
#define STOPWATCH_RESET_TIMER BUTTON_REW
#define STOPWATCH_LAP_TIMER BUTTON_FF
#define STOPWATCH_SCROLL_UP BUTTON_SCROLL_UP
#define STOPWATCH_SCROLL_DOWN BUTTON_SCROLL_DOWN
#elif CONFIG_KEYPAD == MROBE500_PAD
#define STOPWATCH_QUIT BUTTON_POWER
#elif CONFIG_KEYPAD == GIGABEAT_S_PAD
#define STOPWATCH_QUIT BUTTON_BACK
#define STOPWATCH_START_STOP BUTTON_PLAY
#define STOPWATCH_RESET_TIMER BUTTON_MENU
#define STOPWATCH_LAP_TIMER BUTTON_SELECT
#define STOPWATCH_SCROLL_UP BUTTON_UP
#define STOPWATCH_SCROLL_DOWN BUTTON_DOWN
#elif CONFIG_KEYPAD == MROBE100_PAD
#define STOPWATCH_QUIT BUTTON_POWER
#define STOPWATCH_START_STOP BUTTON_SELECT
#define STOPWATCH_RESET_TIMER BUTTON_DISPLAY
#define STOPWATCH_LAP_TIMER BUTTON_MENU
#define STOPWATCH_SCROLL_UP BUTTON_UP
#define STOPWATCH_SCROLL_DOWN BUTTON_DOWN
#elif CONFIG_KEYPAD == IAUDIO_M3_PAD
#define STOPWATCH_QUIT BUTTON_RC_REC
#define STOPWATCH_START_STOP BUTTON_RC_PLAY
#define STOPWATCH_RESET_TIMER BUTTON_RC_REW
#define STOPWATCH_LAP_TIMER BUTTON_RC_FF
#define STOPWATCH_SCROLL_UP BUTTON_RC_VOL_UP
#define STOPWATCH_SCROLL_DOWN BUTTON_RC_VOL_DOWN
#define STOPWATCH_RC_QUIT BUTTON_REC
#elif CONFIG_KEYPAD == COWON_D2_PAD
#define STOPWATCH_QUIT BUTTON_POWER
#elif CONFIG_KEYPAD == IAUDIO67_PAD
#define STOPWATCH_QUIT BUTTON_MENU
#define STOPWATCH_START_STOP BUTTON_PLAY
#define STOPWATCH_RESET_TIMER BUTTON_STOP
#define STOPWATCH_LAP_TIMER BUTTON_LEFT
#define STOPWATCH_SCROLL_UP BUTTON_VOLUP
#define STOPWATCH_SCROLL_DOWN BUTTON_VOLDOWN
#define STOPWATCH_RC_QUIT BUTTON_POWER
#elif CONFIG_KEYPAD == CREATIVEZVM_PAD
#define STOPWATCH_QUIT BUTTON_BACK
#define STOPWATCH_START_STOP BUTTON_PLAY
#define STOPWATCH_RESET_TIMER BUTTON_SELECT
#define STOPWATCH_LAP_TIMER BUTTON_CUSTOM
#define STOPWATCH_SCROLL_UP BUTTON_UP
#define STOPWATCH_SCROLL_DOWN BUTTON_DOWN
#elif CONFIG_KEYPAD == PHILIPS_HDD1630_PAD
#define STOPWATCH_QUIT BUTTON_POWER
#define STOPWATCH_START_STOP BUTTON_SELECT
#define STOPWATCH_RESET_TIMER BUTTON_MENU
#define STOPWATCH_LAP_TIMER BUTTON_VIEW
#define STOPWATCH_SCROLL_UP BUTTON_UP
#define STOPWATCH_SCROLL_DOWN BUTTON_DOWN
#elif CONFIG_KEYPAD == PHILIPS_SA9200_PAD
#define STOPWATCH_QUIT BUTTON_POWER
#define STOPWATCH_START_STOP BUTTON_PLAY
#define STOPWATCH_RESET_TIMER BUTTON_MENU
#define STOPWATCH_LAP_TIMER BUTTON_RIGHT
#define STOPWATCH_SCROLL_UP BUTTON_UP
#define STOPWATCH_SCROLL_DOWN BUTTON_DOWN
#elif CONFIG_KEYPAD == ONDAVX747_PAD
#define STOPWATCH_QUIT BUTTON_POWER
#elif CONFIG_KEYPAD == ONDAVX777_PAD
#define STOPWATCH_QUIT BUTTON_POWER
#elif CONFIG_KEYPAD == SAMSUNG_YH_PAD
#define STOPWATCH_QUIT BUTTON_REC
#define STOPWATCH_START_STOP BUTTON_PLAY
#define STOPWATCH_RESET_TIMER BUTTON_LEFT
#define STOPWATCH_LAP_TIMER BUTTON_RIGHT
#define STOPWATCH_SCROLL_UP BUTTON_UP
#define STOPWATCH_SCROLL_DOWN BUTTON_DOWN
#elif CONFIG_KEYPAD == PBELL_VIBE500_PAD
#define STOPWATCH_QUIT BUTTON_REC
#define STOPWATCH_START_STOP BUTTON_PLAY
#define STOPWATCH_RESET_TIMER BUTTON_OK
#define STOPWATCH_LAP_TIMER BUTTON_MENU
#define STOPWATCH_SCROLL_UP BUTTON_UP
#define STOPWATCH_SCROLL_DOWN BUTTON_DOWN
#elif CONFIG_KEYPAD == MPIO_HD200_PAD
#define STOPWATCH_QUIT (BUTTON_REC|BUTTON_PLAY)
#define STOPWATCH_START_STOP BUTTON_PLAY
#define STOPWATCH_RESET_TIMER BUTTON_PREV
#define STOPWATCH_LAP_TIMER BUTTON_NEXT
#define STOPWATCH_SCROLL_UP BUTTON_VOL_UP
#define STOPWATCH_SCROLL_DOWN BUTTON_VOL_DOWN
#else
#error No keymap defined!
#endif
#ifdef HAVE_TOUCHSCREEN
#ifndef STOPWATCH_QUIT
#define STOPWATCH_QUIT BUTTON_TOPLEFT
#endif
#ifndef STOPWATCH_START_STOP
#define STOPWATCH_START_STOP BUTTON_CENTER
#endif
#ifndef STOPWATCH_RESET_TIMER
#define STOPWATCH_RESET_TIMER BUTTON_MIDRIGHT
#endif
#ifndef STOPWATCH_LAP_TIMER
#define STOPWATCH_LAP_TIMER BUTTON_MIDLEFT
#endif
#ifndef STOPWATCH_SCROLL_UP
#define STOPWATCH_SCROLL_UP BUTTON_TOPMIDDLE
#endif
#ifndef STOPWATCH_SCROLL_DOWN
#define STOPWATCH_SCROLL_DOWN BUTTON_BOTTOMMIDDLE
#endif
#endif
static int stopwatch = 0;
static long start_at = 0;
static int prev_total = 0;
static bool counting = false;
static int curr_lap = 0;
static int lap_scroll = 0;
static int lap_start;
static int lap_times[MAX_LAPS];
static void ticks_to_string(int ticks,int lap,int buflen, char * buf)
{
int hours, minutes, seconds, cs;
hours = ticks / (HZ * 3600);
ticks -= (HZ * hours * 3600);
minutes = ticks / (HZ * 60);
ticks -= (HZ * minutes * 60);
seconds = ticks / HZ;
ticks -= (HZ * seconds);
cs = ticks;
if (!lap)
{
rb->snprintf(buf, buflen,
"%2d:%02d:%02d.%02d",
hours, minutes, seconds, cs);
}
else
{
if (lap > 1)
{
int last_ticks, last_hours, last_minutes, last_seconds, last_cs;
last_ticks = lap_times[(lap-1)%MAX_LAPS] - lap_times[(lap-2)%MAX_LAPS];
last_hours = last_ticks / (HZ * 3600);
last_ticks -= (HZ * last_hours * 3600);
last_minutes = last_ticks / (HZ * 60);
last_ticks -= (HZ * last_minutes * 60);
last_seconds = last_ticks / HZ;
last_ticks -= (HZ * last_seconds);
last_cs = last_ticks;
rb->snprintf(buf, buflen,
"%2d %2d:%02d:%02d.%02d [%2d:%02d:%02d.%02d]",
lap, hours, minutes, seconds, cs, last_hours,
last_minutes, last_seconds, last_cs);
}
else
{
rb->snprintf(buf, buflen,
"%2d %2d:%02d:%02d.%02d",
lap, hours, minutes, seconds, cs);
}
}
}
/*
* Load saved stopwatch state, if exists.
*/
void load_stopwatch(void)
{
int fd;
fd = rb->open(STOPWATCH_FILE, O_RDONLY);
if (fd < 0)
{
return;
}
/* variable stopwatch isn't saved/loaded, because it is only used
* temporarily in main loop
*/
rb->read(fd, &start_at, sizeof(start_at));
rb->read(fd, &prev_total, sizeof(prev_total));
rb->read(fd, &counting, sizeof(counting));
rb->read(fd, &curr_lap, sizeof(curr_lap));
rb->read(fd, &lap_scroll, sizeof(lap_scroll));
rb->read(fd, &lap_start, sizeof(lap_start));
rb->read(fd, lap_times, sizeof(lap_times));
if (counting && start_at > *rb->current_tick)
{
/* Stopwatch started in the future? Unlikely; probably started on a
* previous session and powered off in-between. We'll keep
* everything intact (user can clear manually) but stop the
* stopwatch to avoid negative timing.
*/
start_at = 0;
counting = false;
}
rb->close(fd);
}
/*
* Save stopwatch state.
*/
void save_stopwatch(void)
{
int fd;
fd = rb->open(STOPWATCH_FILE, O_CREAT|O_WRONLY|O_TRUNC, 0666);
if (fd < 0)
{
return;
}
/* variable stopwatch isn't saved/loaded, because it is only used
* temporarily in main loop
*/
rb->write(fd, &start_at, sizeof(start_at));
rb->write(fd, &prev_total, sizeof(prev_total));
rb->write(fd, &counting, sizeof(counting));
rb->write(fd, &curr_lap, sizeof(curr_lap));
rb->write(fd, &lap_scroll, sizeof(lap_scroll));
rb->write(fd, &lap_start, sizeof(lap_start));
rb->write(fd, lap_times, sizeof(lap_times));
rb->close(fd);
}
enum plugin_status plugin_start(const void* parameter)
{
char buf[32];
int button;
int lap;
int done = false;
bool update_lap = true;
int lines;
(void)parameter;
#ifdef HAVE_LCD_BITMAP
int h;
rb->lcd_setfont(FONT_UI);
rb->lcd_getstringsize("M", NULL, &h);
lines = (LCD_HEIGHT / h) - (LAP_Y);
#else
lines = 1;
#endif
load_stopwatch();
rb->lcd_clear_display();
while (!done)
{
if (counting)
{
stopwatch = prev_total + *rb->current_tick - start_at;
}
else
{
stopwatch = prev_total;
}
ticks_to_string(stopwatch,0,32,buf);
rb->lcd_puts(0, TIMER_Y, buf);
if(update_lap)
{
lap_start = curr_lap - lap_scroll;
for (lap = lap_start; lap > lap_start - lines; lap--)
{
if (lap > 0)
{
ticks_to_string(lap_times[(lap-1)%MAX_LAPS],lap,32,buf);
rb->lcd_puts_scroll(0, LAP_Y + lap_start - lap, buf);
}
else
{
rb->lcd_puts(0, LAP_Y + lap_start - lap,
" ");
}
}
update_lap = false;
}
rb->lcd_update();
if (! counting)
{
button = rb->button_get(true);
}
else
{
button = rb->button_get_w_tmo(10);
/* Make sure that the jukebox isn't powered off
automatically */
rb->reset_poweroff_timer();
}
switch (button)
{
/* exit */
#ifdef STOPWATCH_RC_QUIT
case STOPWATCH_RC_QUIT:
#endif
case STOPWATCH_QUIT:
save_stopwatch();
done = true;
break;
/* Stop/Start toggle */
case STOPWATCH_START_STOP:
counting = ! counting;
if (counting)
{
start_at = *rb->current_tick;
stopwatch = prev_total + *rb->current_tick - start_at;
}
else
{
prev_total += *rb->current_tick - start_at;
stopwatch = prev_total;
}
break;
/* Reset timer */
case STOPWATCH_RESET_TIMER:
if (!counting)
{
prev_total = 0;
curr_lap = 0;
update_lap = true;
}
break;
/* Lap timer */
case STOPWATCH_LAP_TIMER:
lap_times[curr_lap%MAX_LAPS] = stopwatch;
curr_lap++;
update_lap = true;
break;
/* Scroll Lap timer up */
case STOPWATCH_SCROLL_UP:
if (lap_scroll > 0)
{
lap_scroll --;
update_lap = true;
}
break;
/* Scroll Lap timer down */
case STOPWATCH_SCROLL_DOWN:
if ((lap_scroll < curr_lap - lines) &&
(lap_scroll < (MAX_LAPS - lines)) )
{
lap_scroll ++;
update_lap = true;
}
break;
default:
if (rb->default_event_handler(button) == SYS_USB_CONNECTED)
return PLUGIN_USB_CONNECTED;
break;
}
}
return PLUGIN_OK;
}
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