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rockbox/apps/plugins/fireworks.c
Thomas Martitz abdc5935be Introduce plugin_crt0.c that every plugin links. 
It handles exit() properly, calling the handler also when the plugin returns
normally (also it makes 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 it 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@27862 a1c6a512-1295-4272-9138-f99709370657
2010-08-23 16:56:49 +00:00

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/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2007 Zakk Roberts
*
* 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/helper.h"
#include "lib/playback_control.h"
/***
* FIREWORKS.C by ZAKK ROBERTS
* Rockbox plugin simulating a fireworks display.
* Supports all bitmap LCDs, fully scalable.
* Currently disabled for Archos Recorder - runs too slow.
***/
/* All sorts of keymappings.. */
#if (CONFIG_KEYPAD == IRIVER_H300_PAD) || (CONFIG_KEYPAD == IRIVER_H100_PAD)
#define BTN_MENU BUTTON_OFF
#define BTN_FIRE BUTTON_SELECT
#elif (CONFIG_KEYPAD == IPOD_4G_PAD) || (CONFIG_KEYPAD == IPOD_3G_PAD) || \
(CONFIG_KEYPAD == IPOD_1G2G_PAD)
#define BTN_MENU BUTTON_MENU
#define BTN_FIRE BUTTON_SELECT
#elif (CONFIG_KEYPAD == RECORDER_PAD)
#define BTN_MENU BUTTON_OFF
#define BTN_FIRE BUTTON_PLAY
#elif (CONFIG_KEYPAD == ARCHOS_AV300_PAD)
#define BTN_MENU BUTTON_OFF
#define BTN_FIRE BUTTON_SELECT
#elif (CONFIG_KEYPAD == ONDIO_PAD)
#define BTN_MENU BUTTON_MENU
#define BTN_FIRE BUTTON_UP
#elif (CONFIG_KEYPAD == IAUDIO_X5M5_PAD)
#define BTN_MENU BUTTON_POWER
#define BTN_FIRE BUTTON_SELECT
#elif (CONFIG_KEYPAD == IRIVER_IFP7XX_PAD)
#define BTN_MENU BUTTON_MODE
#define BTN_FIRE BUTTON_SELECT
#elif (CONFIG_KEYPAD == GIGABEAT_PAD) || \
(CONFIG_KEYPAD == GIGABEAT_S_PAD) || \
(CONFIG_KEYPAD == MROBE100_PAD)
#define BTN_MENU BUTTON_MENU
#define BTN_FIRE BUTTON_SELECT
#elif (CONFIG_KEYPAD == SANSA_E200_PAD) || \
(CONFIG_KEYPAD == SANSA_C200_PAD)
#define BTN_MENU BUTTON_POWER
#define BTN_FIRE BUTTON_SELECT
#elif (CONFIG_KEYPAD == SANSA_FUZE_PAD)
#define BTN_MENU (BUTTON_HOME|BUTTON_REPEAT)
#define BTN_FIRE BUTTON_SELECT
#elif (CONFIG_KEYPAD == IRIVER_H10_PAD)
#define BTN_MENU BUTTON_POWER
#define BTN_FIRE BUTTON_PLAY
#elif CONFIG_KEYPAD == IAUDIO_M3_PAD
#define BTN_MENU BUTTON_RC_REC
#define BTN_FIRE BUTTON_RC_PLAY
#elif (CONFIG_KEYPAD == COWON_D2_PAD)
#define BTN_MENU (BUTTON_MENU|BUTTON_REL)
#elif CONFIG_KEYPAD == IAUDIO67_PAD
#define BTN_MENU BUTTON_MENU
#define BTN_FIRE BUTTON_PLAY
#elif CONFIG_KEYPAD == CREATIVEZVM_PAD
#define BTN_MENU BUTTON_MENU
#define BTN_FIRE BUTTON_SELECT
#elif CONFIG_KEYPAD == PHILIPS_HDD1630_PAD
#define BTN_MENU BUTTON_MENU
#define BTN_FIRE BUTTON_SELECT
#elif CONFIG_KEYPAD == PHILIPS_SA9200_PAD
#define BTN_MENU BUTTON_MENU
#define BTN_FIRE BUTTON_PLAY
#elif (CONFIG_KEYPAD == ONDAVX747_PAD)
#define BTN_MENU (BUTTON_MENU|BUTTON_REL)
#elif (CONFIG_KEYPAD == SAMSUNG_YH_PAD)
#define BTN_MENU BUTTON_LEFT
#define BTN_FIRE BUTTON_PLAY
#elif (CONFIG_KEYPAD == PBELL_VIBE500_PAD)
#define BTN_MENU BUTTON_MENU
#define BTN_FIRE BUTTON_OK
#elif (CONFIG_KEYPAD == MPIO_HD200_PAD)
#define BTN_MENU BUTTON_REC
#define BTN_FIRE BUTTON_SELECT
#elif defined(HAVE_TOUCHSCREEN)
/* This is a touchscreen target */
#else
#error No keymap defined!
#endif
#ifdef HAVE_TOUCHSCREEN
#ifndef BTN_MENU
#define BTN_MENU (BUTTON_TOPLEFT|BUTTON_REL)
#endif
#ifndef BTN_FIRE
#define BTN_FIRE BUTTON_CENTER
#endif
#endif
/* The lowdown on source terminology:
* a ROCKET is launched from the LCD bottom.
* FIREWORKs are ejected from the rocket when it explodes. */
#define MAX_ROCKETS 40
#define ROCKET_LIFE (LCD_HEIGHT/2)
#define ROCKET_LIFE_VAR (LCD_HEIGHT/4)
#define ROCKET_SIZE 2
#define ROCKET_MOVEMENT_RANGE 4
#define ROCKET_TRAIL_PARTICLES 50
#define MAX_FIREWORKS 40
#define FIREWORK_MOVEMENT_RANGE 6
#define FIREWORK_SIZE 2
/* position, speed, "phase" (age), color of all fireworks */
int firework_xpoints[MAX_ROCKETS][MAX_FIREWORKS];
int firework_ypoints[MAX_ROCKETS][MAX_FIREWORKS];
int firework_xspeed[MAX_ROCKETS][MAX_FIREWORKS];
int firework_yspeed[MAX_ROCKETS][MAX_FIREWORKS];
int firework_phase[MAX_ROCKETS];
#ifdef HAVE_LCD_COLOR
int firework_color[MAX_ROCKETS][MAX_FIREWORKS];
#endif
/* position, speed, "phase" (age) of all rockets */
int rocket_xpos[MAX_ROCKETS];
int rocket_ypos[MAX_ROCKETS];
int rocket_xspeed[MAX_ROCKETS];
int rocket_yspeed[MAX_ROCKETS];
int rocket_phase[MAX_ROCKETS];
int rocket_targetphase[MAX_ROCKETS];
/* settings values. these should eventually be saved to
* disk. maybe a preset loading/saving system? */
int autofire_delay = 0;
int particles_per_firework = 2;
int particle_life = 1;
int gravity = 1;
int show_rockets = 1;
int frames_per_second = 4;
bool quit_plugin = false;
/* firework colors:
* firework_colors = brightest firework color, used most of the time.
* DARK colors = fireworks are nearly burnt out.
* DARKER colors = fireworks are several frames away from burning out.
* DARKEST colors = fireworks are a couple frames from burning out. */
#ifdef HAVE_LCD_COLOR
static const unsigned firework_colors[] = {
LCD_RGBPACK(0,255,64), LCD_RGBPACK(61,255,249), LCD_RGBPACK(255,200,61),
LCD_RGBPACK(217,22,217), LCD_RGBPACK(22,217,132), LCD_RGBPACK(67,95,254),
LCD_RGBPACK(151,84,213) };
static const unsigned firework_dark_colors[] = {
LCD_RGBPACK(0,128,32), LCD_RGBPACK(30,128,128), LCD_RGBPACK(128,100,30),
LCD_RGBPACK(109,11,109), LCD_RGBPACK(11,109,66), LCD_RGBPACK(33,47,128),
LCD_RGBPACK(75,42,105) };
static const unsigned firework_darker_colors[] = {
LCD_RGBPACK(0,64,16), LCD_RGBPACK(15,64,64), LCD_RGBPACK(64,50,15),
LCD_RGBPACK(55,5,55), LCD_RGBPACK(5,55,33), LCD_RGBPACK(16,24,64),
LCD_RGBPACK(38,21,52) };
static const unsigned firework_darkest_colors[] = {
LCD_RGBPACK(0,32,8), LCD_RGBPACK(7,32,32), LCD_RGBPACK(32,25,7),
LCD_RGBPACK(27,2,27), LCD_RGBPACK(2,27,16), LCD_RGBPACK(8,12,32),
LCD_RGBPACK(19,10,26) };
#define EXPLOSION_COLOR LCD_RGBPACK(255,240,0)
#endif
static const struct opt_items autofire_delay_settings[15] = {
{ "Off", -1 },
{ "50ms", -1 },
{ "100ms", -1 },
{ "200ms", -1 },
{ "300ms", -1 },
{ "400ms", -1 },
{ "500ms", -1 },
{ "600ms", -1 },
{ "700ms", -1 },
{ "800ms", -1 },
{ "900ms", -1 },
{ "1s", -1 },
{ "2s", -1 },
{ "3s", -1 },
{ "4s", -1 }
};
int autofire_delay_values[15] = {
0, 5, 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 200, 300, 400 };
static const struct opt_items particle_settings[8] = {
{ "5", -1 },
{ "10", -1 },
{ "15", -1 },
{ "20", -1 },
{ "25", -1 },
{ "30", -1 },
{ "35", -1 },
{ "40", -1 },
};
int particle_values[8] = {
5, 10, 15, 20, 25, 30, 35, 40 };
static const struct opt_items particle_life_settings[9] = {
{ "20 cycles", -1 },
{ "30 cycles", -1 },
{ "40 cycles", -1 },
{ "50 cycles", -1 },
{ "60 cycles", -1 },
{ "70 cycles", -1 },
{ "80 cycles", -1 },
{ "90 cycles", -1 },
{ "100 cycles", -1 }
};
int particle_life_values[9] = {
20, 30, 40, 50, 60, 70, 80, 90, 100 };
static const struct opt_items gravity_settings[4] = {
{ "Off", -1 },
{ "Weak", -1 },
{ "Moderate", -1 },
{ "Strong", -1 },
};
int gravity_values[4] = {
0, 30, 20, 10 };
#ifdef HAVE_LCD_COLOR
static const struct opt_items rocket_settings[3] = {
{ "No", -1 },
{ "Yes (no trails)", -1 },
{ "Yes (with trails)", -1 },
};
int rocket_values[4] = {
2, 1, 0 };
#else
static const struct opt_items rocket_settings[2] = {
{ "No", -1 },
{ "Yes", -1 },
};
int rocket_values[4] = {
1, 0 };
#endif
static const struct opt_items fps_settings[9] = {
{ "20 FPS", -1 },
{ "25 FPS", -1 },
{ "30 FPS", -1 },
{ "35 FPS", -1 },
{ "40 FPS", -1 },
{ "45 FPS", -1 },
{ "50 FPS", -1 },
{ "55 FPS", -1 },
{ "60 FPS", -1 }
};
int fps_values[9] = {
20, 25, 30, 35, 40, 45, 50, 55, 60 };
MENUITEM_STRINGLIST(menu, "Fireworks Menu", NULL,
"Start Demo", "Auto-Fire", "Particles Per Firework",
"Particle Life", "Gravity", "Show Rockets",
"FPS (Speed)", "Playback Control", "Quit");
/* called on startup. initializes all variables, etc */
void init_all(void)
{
int j;
for(j=0; j<MAX_ROCKETS; j++)
{
rocket_phase[j] = -1;
firework_phase[j] = -1;
}
}
/* called when a rocket hits its destination height.
* prepares all associated fireworks to be expelled. */
void init_explode(int x, int y, int firework, int points)
{
int i;
for(i=0; i<points; i++)
{
rb->srand(*rb->current_tick * i);
firework_xpoints[firework][i] = x;
firework_ypoints[firework][i] = y;
firework_xspeed[firework][i] = (rb->rand() % FIREWORK_MOVEMENT_RANGE)
- FIREWORK_MOVEMENT_RANGE/2;
firework_yspeed[firework][i] = (rb->rand() % FIREWORK_MOVEMENT_RANGE)
- FIREWORK_MOVEMENT_RANGE/2;
#ifdef HAVE_LCD_COLOR
firework_color[firework][i] = rb->rand() % 7;
#endif
}
}
/* called when a rocket is launched.
* prepares said rocket to start moving towards its destination. */
void init_rocket(int rocket)
{
rb->srand(*rb->current_tick);
rocket_xpos[rocket] = rb->rand() % LCD_WIDTH;
rocket_ypos[rocket] = LCD_HEIGHT;
rocket_xspeed[rocket] = (rb->rand() % ROCKET_MOVEMENT_RANGE)
- ROCKET_MOVEMENT_RANGE/2;
rocket_yspeed[rocket] = 3;
rocket_phase[rocket] = 0;
rocket_targetphase[rocket] = (ROCKET_LIFE + (rb->rand() % ROCKET_LIFE_VAR))
/ rocket_yspeed[rocket];
}
/* startup/configuration menu. */
void fireworks_menu(void)
{
int selected = 0, result;
bool menu_quit = false;
rb->lcd_setfont(FONT_UI);
#ifdef HAVE_LCD_COLOR
rb->lcd_set_background(LCD_BLACK);
rb->lcd_set_foreground(LCD_WHITE);
#endif
rb->lcd_clear_display();
rb->lcd_update();
rb->button_clear_queue();
while(!menu_quit)
{
result = rb->do_menu(&menu, &selected, NULL, false);
switch(result)
{
case 0:
rb->lcd_setfont(FONT_SYSFIXED);
#ifdef HAVE_LCD_COLOR
rb->lcd_set_background(LCD_BLACK);
rb->lcd_set_foreground(LCD_WHITE);
#endif
rb->lcd_clear_display();
rb->lcd_update();
init_all();
menu_quit = true;
break;
case 1:
rb->set_option("Auto-Fire", &autofire_delay, INT,
autofire_delay_settings, 15, NULL);
break;
case 2:
rb->set_option("Particles Per Firework", &particles_per_firework,
INT, particle_settings, 8, NULL);
break;
case 3:
rb->set_option("Particle Life", &particle_life, INT,
particle_life_settings, 9, NULL);
break;
case 4:
rb->set_option("Gravity", &gravity, INT,
gravity_settings, 4, NULL);
break;
case 5:
rb->set_option("Show Rockets", &show_rockets, INT,
rocket_settings, 3, NULL);
break;
case 6:
rb->set_option("FPS (Speed)", &frames_per_second, INT,
fps_settings, 9, NULL);
break;
case 7:
playback_control(NULL);
break;
case 8:
quit_plugin = true;
menu_quit = true;
break;
}
}
}
/* this is the plugin entry point */
enum plugin_status plugin_start(const void* parameter)
{
(void)parameter;
int j, i;
int thisrocket=0;
int start_tick, elapsed_tick;
int button;
/* set everything up.. no BL timeout, no backdrop,
white-text-on-black-background. */
backlight_force_on(); /* backlight control in lib/helper.c */
#if LCD_DEPTH > 1
rb->lcd_set_backdrop(NULL);
rb->lcd_set_background(LCD_BLACK);
rb->lcd_set_foreground(LCD_WHITE);
#endif
#ifdef HAVE_ADJUSTABLE_CPU_FREQ
rb->cpu_boost(true);
#endif
fireworks_menu();
start_tick = *rb->current_tick;
while(!quit_plugin)
{
rb->lcd_clear_display();
/* loop through every possible rocket */
for(j=0; j<MAX_ROCKETS; j++)
{
/* if the current rocket is actually moving/"alive" then go on and
* move/update/explode it */
if(rocket_phase[j] > -1)
{
#ifdef HAVE_LCD_COLOR /* draw trail, if requested */
if(show_rockets==2)
{
rb->lcd_set_foreground(LCD_RGBPACK(128,128,128));
rb->lcd_fillrect(rocket_xpos[j], rocket_ypos[j],
ROCKET_SIZE, ROCKET_SIZE);
rb->lcd_set_foreground(LCD_RGBPACK(64,64,64));
rb->lcd_fillrect(rocket_xpos[j]-rocket_xspeed[j],
rocket_ypos[j]+rocket_yspeed[j],
ROCKET_SIZE, ROCKET_SIZE);
}
#endif
/* move rocket */
rocket_xpos[j] += rocket_xspeed[j];
rocket_ypos[j] -= rocket_yspeed[j];
#ifdef HAVE_LCD_COLOR
rb->lcd_set_foreground(LCD_WHITE);
#endif
if(show_rockets==2 || show_rockets==1)
rb->lcd_fillrect(rocket_xpos[j], rocket_ypos[j],
ROCKET_SIZE, ROCKET_SIZE);
/* if(rocket isn't "there" yet) keep moving
* if(rocket IS there) explode it. */
if(rocket_phase[j] < rocket_targetphase[j])
rocket_phase[j]++;
else
{
rocket_phase[j] = -1;
firework_phase[j] = 0;
init_explode(rocket_xpos[j], rocket_ypos[j], j,
particle_values[particles_per_firework]);
}
}
/* and now onto the fireworks for this particular rocket... */
if(firework_phase[j] > -1)
{
for(i=0; i<particle_values[particles_per_firework]; i++)
{
firework_xpoints[j][i] += firework_xspeed[j][i];
firework_ypoints[j][i] += firework_yspeed[j][i];
if(gravity != 0)
firework_ypoints[j][i] += firework_phase[j]
/gravity_values[gravity];
#ifdef HAVE_LCD_COLOR
rb->lcd_set_foreground(
firework_darkest_colors[firework_color[j][i]]);
rb->lcd_fillrect(firework_xpoints[j][i]-1,
firework_ypoints[j][i]-1,
FIREWORK_SIZE+2, FIREWORK_SIZE+2);
int phase_left = particle_life_values[particle_life]
- firework_phase[j];
if(phase_left > 10)
rb->lcd_set_foreground(
firework_colors[firework_color[j][i]]);
else if(phase_left > 7)
rb->lcd_set_foreground(
firework_dark_colors[firework_color[j][i]]);
else if(phase_left > 3)
rb->lcd_set_foreground(
firework_darker_colors[firework_color[j][i]]);
else
rb->lcd_set_foreground(
firework_darkest_colors[firework_color[j][i]]);
#endif
rb->lcd_fillrect(firework_xpoints[j][i],
firework_ypoints[j][i],
FIREWORK_SIZE, FIREWORK_SIZE);
/* WIP - currently ugly explosion effect
#ifdef HAVE_LCD_COLOR
if(firework_phase[j] < 10)
{
rb->lcd_set_foreground(EXPLOSION_COLOR);
rb->lcd_fillrect(rocket_xpos[j]-firework_phase[j],
rocket_ypos[j]-firework_phase[j],
firework_phase[j]*2, firework_phase[j]*2);
}
#endif */
}
#ifdef HAVE_LCD_COLOR
rb->lcd_set_foreground(LCD_WHITE);
#endif
/* firework at its destination age?
* no = keep aging; yes = delete it. */
if(firework_phase[j] < particle_life_values[particle_life])
firework_phase[j]++;
else
firework_phase[j] = -1;
}
}
/* is autofire on? */
if(autofire_delay != 0)
{
elapsed_tick = *rb->current_tick - start_tick;
if(elapsed_tick > autofire_delay_values[autofire_delay])
{
init_rocket(thisrocket);
if(++thisrocket == MAX_ROCKETS)
thisrocket = 0;
start_tick = *rb->current_tick;
}
}
rb->lcd_update();
button = rb->button_get_w_tmo(HZ/fps_values[frames_per_second]);
switch(button)
{
case BTN_MENU: /* back to config menu */
fireworks_menu();
break;
case BTN_FIRE: /* fire off rockets manually */
case BTN_FIRE|BUTTON_REPEAT:
init_rocket(thisrocket);
if(++thisrocket == MAX_ROCKETS)
thisrocket=0;
break;
}
}
/* Turn on backlight timeout (revert to settings) */
backlight_use_settings(); /* backlight control in lib/helper.c */
#ifdef HAVE_ADJUSTABLE_CPU_FREQ
rb->cpu_boost(false);
#endif
return PLUGIN_OK;
}
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