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rockbox/apps/plugins/snow.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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6.9 KiB
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/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2002 Itai Shaked
*
* 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 "lib/playergfx.h"
#include "lib/mylcd.h"
#ifdef HAVE_LCD_BITMAP
#define NUM_PARTICLES (LCD_WIDTH * LCD_HEIGHT / 72)
#define SNOW_HEIGHT LCD_HEIGHT
#define SNOW_WIDTH LCD_WIDTH
#else
#define NUM_PARTICLES 10
#define SNOW_HEIGHT 14
#define SNOW_WIDTH 20
#endif
/* variable button definitions */
#if CONFIG_KEYPAD == PLAYER_PAD
#define SNOW_QUIT BUTTON_STOP
#elif (CONFIG_KEYPAD == IPOD_4G_PAD) || \
(CONFIG_KEYPAD == IPOD_3G_PAD) || \
(CONFIG_KEYPAD == IPOD_1G2G_PAD)
#define SNOW_QUIT BUTTON_MENU
#elif (CONFIG_KEYPAD == IRIVER_IFP7XX_PAD) || \
(CONFIG_KEYPAD == SAMSUNG_YH_PAD)
#define SNOW_QUIT BUTTON_PLAY
#elif (CONFIG_KEYPAD == SANSA_E200_PAD) || \
(CONFIG_KEYPAD == SANSA_C200_PAD) || \
(CONFIG_KEYPAD == SANSA_CLIP_PAD) || \
(CONFIG_KEYPAD == SANSA_M200_PAD) || \
(CONFIG_KEYPAD == MROBE500_PAD) || \
(CONFIG_KEYPAD == IRIVER_H10_PAD) || \
(CONFIG_KEYPAD == MROBE100_PAD) || \
(CONFIG_KEYPAD == COWON_D2_PAD) || \
(CONFIG_KEYPAD == IAUDIO67_PAD) || \
(CONFIG_KEYPAD == PHILIPS_HDD1630_PAD) || \
(CONFIG_KEYPAD == ONDAVX747_PAD) || \
(CONFIG_KEYPAD == ONDAVX777_PAD) || \
(CONFIG_KEYPAD == GIGABEAT_PAD) || \
(CONFIG_KEYPAD == IAUDIO_X5M5_PAD)
#define SNOW_QUIT BUTTON_POWER
#elif (CONFIG_KEYPAD == SANSA_FUZE_PAD)
#define SNOW_QUIT (BUTTON_HOME|BUTTON_REPEAT)
#elif (CONFIG_KEYPAD == GIGABEAT_S_PAD) || \
(CONFIG_KEYPAD == CREATIVEZVM_PAD)
#define SNOW_QUIT BUTTON_BACK
#elif (CONFIG_KEYPAD == PHILIPS_HDD1630_PAD) || \
(CONFIG_KEYPAD == PHILIPS_SA9200_PAD)
#define SNOW_QUIT BUTTON_POWER
#elif CONFIG_KEYPAD == IAUDIO_M3_PAD
#define SNOW_QUIT BUTTON_REC
#define SNOW_RC_QUIT BUTTON_RC_REC
#elif CONFIG_KEYPAD == PBELL_VIBE500_PAD
#define SNOW_QUIT BUTTON_REC
#elif CONFIG_KEYPAD == MPIO_HD200_PAD
#define SNOW_QUIT (BUTTON_REC|BUTTON_PLAY)
#else
#define SNOW_QUIT BUTTON_OFF
#if (CONFIG_KEYPAD == IRIVER_H100_PAD) || (CONFIG_KEYPAD == IRIVER_H300_PAD)
#define SNOW_RC_QUIT BUTTON_RC_STOP
#endif
#endif
static short particles[NUM_PARTICLES][2];
#ifdef HAVE_LCD_BITMAP
#if LCD_WIDTH >= 160
#define FLAKE_WIDTH 5
static const unsigned char flake[] = {0x0a,0x04,0x1f,0x04,0x0a};
#else
#define FLAKE_WIDTH 3
static const unsigned char flake[] = {0x02,0x07,0x02};
#endif
#endif
static bool particle_exists(int particle)
{
if (particles[particle][0]>=0 && particles[particle][1]>=0 &&
particles[particle][0]<SNOW_WIDTH && particles[particle][1]<SNOW_HEIGHT)
return true;
else
return false;
}
static int create_particle(void)
{
int i;
for (i=0; i<NUM_PARTICLES; i++) {
if (!particle_exists(i)) {
particles[i][0]=(rb->rand()%SNOW_WIDTH);
particles[i][1]=0;
return i;
}
}
return -1;
}
static void snow_move(void)
{
int i;
if (!(rb->rand()%2))
create_particle();
for (i=0; i<NUM_PARTICLES; i++) {
if (particle_exists(i)) {
mylcd_set_drawmode(DRMODE_SOLID|DRMODE_INVERSEVID);
#ifdef HAVE_LCD_BITMAP
rb->lcd_fillrect(particles[i][0],particles[i][1],
FLAKE_WIDTH,FLAKE_WIDTH);
#else
pgfx_drawpixel(particles[i][0],particles[i][1]);
#endif
mylcd_set_drawmode(DRMODE_SOLID);
#ifdef HAVE_REMOTE_LCD
if (particles[i][0] <= LCD_REMOTE_WIDTH
&& particles[i][1] <= LCD_REMOTE_HEIGHT) {
rb->lcd_remote_set_drawmode(DRMODE_SOLID|DRMODE_INVERSEVID);
rb->lcd_remote_fillrect(particles[i][0],particles[i][1],
FLAKE_WIDTH,FLAKE_WIDTH);
rb->lcd_remote_set_drawmode(DRMODE_SOLID);
}
#endif
switch ((rb->rand()%7)) {
case 0:
particles[i][0]++;
break;
case 1:
particles[i][0]--;
break;
case 2:
break;
default:
particles[i][1]++;
break;
}
if (particle_exists(i))
#ifdef HAVE_LCD_BITMAP
rb->lcd_mono_bitmap(flake,particles[i][0],particles[i][1],
FLAKE_WIDTH,FLAKE_WIDTH);
#else
pgfx_drawpixel(particles[i][0],particles[i][1]);
#endif
#ifdef HAVE_REMOTE_LCD
if (particles[i][0] <= LCD_REMOTE_WIDTH
&& particles[i][1] <= LCD_REMOTE_HEIGHT) {
rb->lcd_remote_mono_bitmap(flake,particles[i][0],particles[i][1],
FLAKE_WIDTH,FLAKE_WIDTH);
}
#endif
}
}
}
static void snow_init(void)
{
int i;
for (i=0; i<NUM_PARTICLES; i++) {
particles[i][0]=-1;
particles[i][1]=-1;
}
#ifdef HAVE_LCD_CHARCELLS
pgfx_display(0, 0); /* display three times */
pgfx_display(4, 0);
pgfx_display(8, 0);
#endif
mylcd_clear_display();
#ifdef HAVE_REMOTE_LCD
rb->lcd_remote_clear_display();
#endif
}
enum plugin_status plugin_start(const void* parameter)
{
int button;
(void)(parameter);
#ifdef HAVE_LCD_CHARCELLS
if (!pgfx_init(4, 2))
{
rb->splash(HZ*2, "Old LCD :(");
return PLUGIN_OK;
}
#endif
#ifdef HAVE_LCD_COLOR
rb->lcd_clear_display();
rb->lcd_set_foreground(LCD_WHITE);
rb->lcd_set_background(LCD_DEFAULT_BG);
#endif
snow_init();
while (1) {
snow_move();
mylcd_update();
#ifdef HAVE_REMOTE_LCD
rb->lcd_remote_update();
#endif
rb->sleep(HZ/20);
button = rb->button_get(false);
if (button == SNOW_QUIT
#ifdef SNOW_RC_QUIT
|| button == SNOW_RC_QUIT
#endif
)
{
#ifdef HAVE_LCD_CHARCELLS
pgfx_release();
#endif
return PLUGIN_OK;
}
else
if (rb->default_event_handler(button) == SYS_USB_CONNECTED)
{
#ifdef HAVE_LCD_CHARCELLS
pgfx_release();
#endif
return PLUGIN_USB_CONNECTED;
}
}
}
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