apps/plugins/starfield.c

   1 /***************************************************************************
   2 *             __________               __   ___.
   3 *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
   4 *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
   5 *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
   6 *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
   7 *                     \/            \/     \/    \/            \/
   8 * Copyright (C) 2005 Kevin Ferrare
   9 *
  10 * This program is free software; you can redistribute it and/or
  11 * modify it under the terms of the GNU General Public License
  12 * as published by the Free Software Foundation; either version 2
  13 * of the License, or (at your option) any later version.
  14 *
  15 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
  16 * KIND, either express or implied.
  17 *
  18 ****************************************************************************/
  19
  20 #include "plugin.h"
  21 #include "lib/helper.h"
  22 #include "lib/pluginlib_exit.h"
  23
  24 /******************************* Globals ***********************************/
  25
  26 /* Key assignement */
  27 #if (CONFIG_KEYPAD == IPOD_4G_PAD) || \
  28     (CONFIG_KEYPAD == IPOD_3G_PAD) || \
  29     (CONFIG_KEYPAD == IPOD_1G2G_PAD)
  30 #define STARFIELD_QUIT BUTTON_MENU
  31 #define STARFIELD_INCREASE_ZMOVE BUTTON_SCROLL_FWD
  32 #define STARFIELD_DECREASE_ZMOVE BUTTON_SCROLL_BACK
  33 #define STARFIELD_INCREASE_NB_STARS BUTTON_RIGHT
  34 #define STARFIELD_DECREASE_NB_STARS BUTTON_LEFT
  35 #define STARFIELD_TOGGLE_COLOR BUTTON_PLAY
  36
  37 #elif (CONFIG_KEYPAD == IAUDIO_X5M5_PAD)
  38 #define STARFIELD_QUIT BUTTON_POWER
  39 #define STARFIELD_INCREASE_ZMOVE BUTTON_UP
  40 #define STARFIELD_DECREASE_ZMOVE BUTTON_DOWN
  41 #define STARFIELD_INCREASE_NB_STARS BUTTON_RIGHT
  42 #define STARFIELD_DECREASE_NB_STARS BUTTON_LEFT
  43 #define STARFIELD_TOGGLE_COLOR BUTTON_PLAY
  44
  45 #elif (CONFIG_KEYPAD == IRIVER_H10_PAD)
  46 #define STARFIELD_QUIT BUTTON_POWER
  47 #define STARFIELD_INCREASE_ZMOVE BUTTON_SCROLL_UP
  48 #define STARFIELD_DECREASE_ZMOVE BUTTON_SCROLL_DOWN
  49 #define STARFIELD_INCREASE_NB_STARS BUTTON_RIGHT
  50 #define STARFIELD_DECREASE_NB_STARS BUTTON_LEFT
  51 #define STARFIELD_TOGGLE_COLOR BUTTON_PLAY
  52
  53 #elif (CONFIG_KEYPAD == GIGABEAT_PAD)
  54 #define STARFIELD_QUIT BUTTON_POWER
  55 #define STARFIELD_INCREASE_ZMOVE BUTTON_UP
  56 #define STARFIELD_DECREASE_ZMOVE BUTTON_DOWN
  57 #define STARFIELD_INCREASE_NB_STARS BUTTON_RIGHT
  58 #define STARFIELD_DECREASE_NB_STARS BUTTON_LEFT
  59 #define STARFIELD_TOGGLE_COLOR BUTTON_SELECT
  60
  61 #elif (CONFIG_KEYPAD == SANSA_E200_PAD) || \
  62       (CONFIG_KEYPAD == SANSA_C200_PAD) || \
  63       (CONFIG_KEYPAD == SANSA_CLIP_PAD) || \
  64       (CONFIG_KEYPAD == SANSA_M200_PAD)
  65 #define STARFIELD_QUIT BUTTON_POWER
  66 #define STARFIELD_INCREASE_ZMOVE BUTTON_UP
  67 #define STARFIELD_DECREASE_ZMOVE BUTTON_DOWN
  68 #define STARFIELD_INCREASE_NB_STARS BUTTON_RIGHT
  69 #define STARFIELD_DECREASE_NB_STARS BUTTON_LEFT
  70 #define STARFIELD_TOGGLE_COLOR BUTTON_SELECT
  71
  72 #elif (CONFIG_KEYPAD == SANSA_FUZE_PAD)
  73 #define STARFIELD_QUIT (BUTTON_HOME|BUTTON_REPEAT)
  74 #define STARFIELD_INCREASE_ZMOVE BUTTON_UP
  75 #define STARFIELD_DECREASE_ZMOVE BUTTON_DOWN
  76 #define STARFIELD_INCREASE_NB_STARS BUTTON_RIGHT
  77 #define STARFIELD_DECREASE_NB_STARS BUTTON_LEFT
  78 #define STARFIELD_TOGGLE_COLOR BUTTON_SELECT
  79
  80 #elif (CONFIG_KEYPAD == GIGABEAT_S_PAD)
  81 #define STARFIELD_QUIT BUTTON_BACK
  82 #define STARFIELD_INCREASE_ZMOVE BUTTON_UP
  83 #define STARFIELD_DECREASE_ZMOVE BUTTON_DOWN
  84 #define STARFIELD_INCREASE_NB_STARS BUTTON_RIGHT
  85 #define STARFIELD_DECREASE_NB_STARS BUTTON_LEFT
  86 #define STARFIELD_TOGGLE_COLOR BUTTON_SELECT
  87
  88 #elif (CONFIG_KEYPAD == MROBE100_PAD)
  89 #define STARFIELD_QUIT BUTTON_POWER
  90 #define STARFIELD_INCREASE_ZMOVE BUTTON_UP
  91 #define STARFIELD_DECREASE_ZMOVE BUTTON_DOWN
  92 #define STARFIELD_INCREASE_NB_STARS BUTTON_RIGHT
  93 #define STARFIELD_DECREASE_NB_STARS BUTTON_LEFT
  94 #define STARFIELD_TOGGLE_COLOR BUTTON_SELECT
  95
  96 #elif CONFIG_KEYPAD == IAUDIO_M3_PAD
  97 #define STARFIELD_QUIT BUTTON_RC_REC
  98 #define STARFIELD_INCREASE_ZMOVE BUTTON_RC_VOL_UP
  99 #define STARFIELD_DECREASE_ZMOVE BUTTON_RC_VOL_DOWN
 100 #define STARFIELD_INCREASE_NB_STARS BUTTON_RC_FF
 101 #define STARFIELD_DECREASE_NB_STARS BUTTON_RC_REW
 102 #define STARFIELD_TOGGLE_COLOR BUTTON_RC_MODE
 103
 104 #elif CONFIG_KEYPAD == IAUDIO67_PAD
 105 #define STARFIELD_QUIT BUTTON_POWER
 106 #define STARFIELD_INCREASE_ZMOVE BUTTON_STOP
 107 #define STARFIELD_DECREASE_ZMOVE BUTTON_PLAY
 108 #define STARFIELD_INCREASE_NB_STARS BUTTON_LEFT
 109 #define STARFIELD_DECREASE_NB_STARS BUTTON_RIGHT
 110 #define STARFIELD_TOGGLE_COLOR BUTTON_MENU
 111
 112 #elif (CONFIG_KEYPAD == COWON_D2_PAD)
 113 #define STARFIELD_QUIT BUTTON_POWER
 114
 115 #elif CONFIG_KEYPAD == CREATIVEZVM_PAD
 116 #define STARFIELD_QUIT BUTTON_BACK
 117 #define STARFIELD_INCREASE_ZMOVE BUTTON_UP
 118 #define STARFIELD_DECREASE_ZMOVE BUTTON_DOWN
 119 #define STARFIELD_INCREASE_NB_STARS BUTTON_RIGHT
 120 #define STARFIELD_DECREASE_NB_STARS BUTTON_LEFT
 121 #define STARFIELD_TOGGLE_COLOR BUTTON_SELECT
 122
 123 #elif CONFIG_KEYPAD == PHILIPS_HDD1630_PAD
 124 #define STARFIELD_QUIT BUTTON_POWER
 125 #define STARFIELD_INCREASE_ZMOVE BUTTON_UP
 126 #define STARFIELD_DECREASE_ZMOVE BUTTON_DOWN
 127 #define STARFIELD_INCREASE_NB_STARS BUTTON_RIGHT
 128 #define STARFIELD_DECREASE_NB_STARS BUTTON_LEFT
 129 #define STARFIELD_TOGGLE_COLOR BUTTON_SELECT
 130
 131 #elif CONFIG_KEYPAD == PHILIPS_HDD6330_PAD
 132 #define STARFIELD_QUIT BUTTON_POWER
 133 #define STARFIELD_INCREASE_ZMOVE BUTTON_UP
 134 #define STARFIELD_DECREASE_ZMOVE BUTTON_DOWN
 135 #define STARFIELD_INCREASE_NB_STARS BUTTON_RIGHT
 136 #define STARFIELD_DECREASE_NB_STARS BUTTON_LEFT
 137 #define STARFIELD_TOGGLE_COLOR BUTTON_PLAY
 138
 139 #elif CONFIG_KEYPAD == PHILIPS_SA9200_PAD
 140 #define STARFIELD_QUIT BUTTON_POWER
 141 #define STARFIELD_INCREASE_ZMOVE BUTTON_UP
 142 #define STARFIELD_DECREASE_ZMOVE BUTTON_DOWN
 143 #define STARFIELD_INCREASE_NB_STARS BUTTON_NEXT
 144 #define STARFIELD_DECREASE_NB_STARS BUTTON_PREV
 145 #define STARFIELD_TOGGLE_COLOR BUTTON_PLAY
 146
 147 #elif (CONFIG_KEYPAD == ONDAVX747_PAD) || (CONFIG_KEYPAD == ONDAVX777_PAD) || (CONFIG_KEYPAD == MROBE500_PAD)
 148 #define STARFIELD_QUIT BUTTON_POWER
 149
 150 #elif CONFIG_KEYPAD == SAMSUNG_YH_PAD
 151 #define STARFIELD_QUIT               BUTTON_FFWD
 152 #define STARFIELD_INCREASE_ZMOVE     BUTTON_UP
 153 #define STARFIELD_DECREASE_ZMOVE     BUTTON_DOWN
 154 #define STARFIELD_INCREASE_NB_STARS  BUTTON_RIGHT
 155 #define STARFIELD_DECREASE_NB_STARS  BUTTON_LEFT
 156 #define STARFIELD_TOGGLE_COLOR       BUTTON_PLAY
 157
 158 #elif CONFIG_KEYPAD == PBELL_VIBE500_PAD
 159 #define STARFIELD_QUIT               BUTTON_REC
 160 #define STARFIELD_INCREASE_ZMOVE     BUTTON_UP
 161 #define STARFIELD_DECREASE_ZMOVE     BUTTON_DOWN
 162 #define STARFIELD_INCREASE_NB_STARS  BUTTON_NEXT
 163 #define STARFIELD_DECREASE_NB_STARS  BUTTON_PREV
 164 #define STARFIELD_TOGGLE_COLOR       BUTTON_PLAY
 165
 166 #elif CONFIG_KEYPAD == MPIO_HD200_PAD
 167 #define STARFIELD_QUIT               (BUTTON_REC|BUTTON_PLAY)
 168 #define STARFIELD_INCREASE_ZMOVE     BUTTON_VOL_UP
 169 #define STARFIELD_DECREASE_ZMOVE     BUTTON_VOL_DOWN
 170 #define STARFIELD_INCREASE_NB_STARS  BUTTON_FF
 171 #define STARFIELD_DECREASE_NB_STARS  BUTTON_REW
 172 #define STARFIELD_TOGGLE_COLOR       BUTTON_PLAY
 173
 174 #elif CONFIG_KEYPAD == MPIO_HD300_PAD
 175 #define STARFIELD_QUIT               (BUTTON_REC|BUTTON_REPEAT)
 176 #define STARFIELD_INCREASE_ZMOVE     BUTTON_UP
 177 #define STARFIELD_DECREASE_ZMOVE     BUTTON_DOWN
 178 #define STARFIELD_INCREASE_NB_STARS  BUTTON_FF
 179 #define STARFIELD_DECREASE_NB_STARS  BUTTON_REW
 180 #define STARFIELD_TOGGLE_COLOR       BUTTON_PLAY
 181
 182 #endif
 183
 184 #ifdef HAVE_TOUCHSCREEN
 185 #ifndef STARFIELD_QUIT
 186 #define STARFIELD_QUIT              BUTTON_TOPLEFT
 187 #endif
 188 #ifndef STARFIELD_INCREASE_ZMOVE
 189 #define STARFIELD_INCREASE_ZMOVE    BUTTON_TOPMIDDLE
 190 #endif
 191 #ifndef STARFIELD_DECREASE_ZMOVE
 192 #define STARFIELD_DECREASE_ZMOVE    BUTTON_BOTTOMMIDDLE
 193 #endif
 194 #ifndef STARFIELD_INCREASE_NB_STARS
 195 #define STARFIELD_INCREASE_NB_STARS BUTTON_MIDRIGHT
 196 #endif
 197 #ifndef STARFIELD_DECREASE_NB_STARS
 198 #define STARFIELD_DECREASE_NB_STARS BUTTON_MIDLEFT
 199 #endif
 200 #ifndef STARFIELD_TOGGLE_COLOR
 201 #define STARFIELD_TOGGLE_COLOR      BUTTON_CENTER
 202 #endif
 203 #endif
 204
 205 #ifndef STARFIELD_QUIT
 206 #define STARFIELD_QUIT BUTTON_OFF
 207 #endif
 208 #ifndef STARFIELD_INCREASE_ZMOVE
 209 #define STARFIELD_INCREASE_ZMOVE BUTTON_UP
 210 #endif
 211 #ifndef STARFIELD_DECREASE_ZMOVE
 212 #define STARFIELD_DECREASE_ZMOVE BUTTON_DOWN
 213 #endif
 214 #ifndef STARFIELD_INCREASE_NB_STARS
 215 #define STARFIELD_INCREASE_NB_STARS BUTTON_RIGHT
 216 #endif
 217 #ifndef STARFIELD_DECREASE_NB_STARS
 218 #define STARFIELD_DECREASE_NB_STARS BUTTON_LEFT
 219 #endif
 220
 221 #ifndef STARFIELD_TOGGLE_COLOR
 222 #ifdef BUTTON_SELECT
 223 #define STARFIELD_TOGGLE_COLOR BUTTON_SELECT
 224 #else
 225 #define STARFIELD_TOGGLE_COLOR BUTTON_PLAY
 226 #endif
 227 #endif
 228 #if (CONFIG_KEYPAD == IRIVER_H100_PAD) || (CONFIG_KEYPAD == IRIVER_H300_PAD)
 229 #define STARFIELD_RC_QUIT BUTTON_RC_STOP
 230 #endif
 231
 232
 233 #define LCD_CENTER_X (LCD_WIDTH/2)
 234 #define LCD_CENTER_Y (LCD_HEIGHT/2)
 235 #define Z_MAX_DIST 100
 236
 237
 238 #define MAX_STARS (LCD_WIDTH*LCD_HEIGHT*20)/100
 239 #define INIT_STARS 200
 240 #define STARFIELD_INCREASE_STEP 50
 241 #define INIT_SPACE_SPEED 1
 242 #define STAR_MAX_VELOCITY 2
 243 /*
 244  * max 3d coord in the 2d screen :
 245  * example with x
 246  *  x2d=x3d/z+LCD_CENTER_X (+LCD_CENTER_X to center ...)
 247  * so
 248  *  max_x2d=max_x3d/max_z+LCD_CENTER_X
 249  *  max_x3d=(max_x2d-LCD_CENTER_X)*max_z
 250  * with
 251  *  max_x2d = LCD_WIDTH
 252  *  max_z = Z_MAX_DIST
 253  * we have now
 254  * max_x3d=(LCD_WIDTH-LCD_CENTER_X)*Z_MAX_DIST
 255  * max_x3d=LCD_CENTER_X*Z_MAX_DIST
 256  */
 257
 258 #define MAX_INIT_STAR_X LCD_CENTER_X*Z_MAX_DIST
 259 #define MAX_INIT_STAR_Y LCD_CENTER_Y*Z_MAX_DIST
 260
 261 #define MSG_DISP_TIME 30
 262
 263 /*
 264  * Each star's stuffs
 265  */
 266 struct star
 267 {
 268     int x,y,z;
 269     int velocity;
 270 #ifdef HAVE_LCD_COLOR
 271     int color;
 272 #endif
 273 };
 274
 275 static inline void star_init(struct star * star, int z_move, bool color)
 276 {
 277     star->velocity=rb->rand() % STAR_MAX_VELOCITY+1;
 278     /* choose x between -MAX_INIT_STAR_X and MAX_INIT_STAR_X */
 279     star->x=rb->rand() % (2*MAX_INIT_STAR_X)-MAX_INIT_STAR_X;
 280     star->y=rb->rand() % (2*MAX_INIT_STAR_Y)-MAX_INIT_STAR_Y;
 281 #ifdef HAVE_LCD_COLOR
 282     if(color)
 283         star->color=LCD_RGBPACK(rb->rand()%128+128,rb->rand()%128+128,
 284                                 rb->rand()%128+128);
 285     else
 286         star->color=LCD_WHITE;
 287 #else
 288     (void)color;
 289 #endif
 290     if(z_move>=0)
 291         star->z=Z_MAX_DIST;
 292     else
 293         star->z=rb->rand() %Z_MAX_DIST/2+1;
 294 }
 295
 296 static inline void star_move(struct star * star, int z_move, bool color)
 297 {
 298     star->z -= z_move*star->velocity;
 299     if (star->z <= 0 || star->z > Z_MAX_DIST)
 300         star_init(star, z_move, color);
 301 }
 302
 303 static inline void star_draw(struct star * star, int z_move, bool color)
 304 {
 305     int x_draw, y_draw;
 306     /*
 307      * 3d -> 2d : projection on the screen : x2d=x3d/z (thales theorem)
 308      * we put the star in the center of the screen
 309      */
 310     x_draw = star->x / star->z + LCD_CENTER_X;
 311     if (x_draw < 1 || x_draw >= LCD_WIDTH)
 312     {
 313         star_init(star, z_move, color);
 314         return;
 315     }
 316     y_draw  = star->y / star->z + LCD_CENTER_Y;
 317     if (y_draw < 1 || y_draw >= LCD_HEIGHT)
 318     {
 319         star_init(star, z_move, color);
 320         return;
 321     }
 322
 323 #ifdef HAVE_LCD_COLOR
 324     rb->lcd_set_foreground(star->color);
 325 #endif
 326
 327     rb->lcd_drawpixel(x_draw, y_draw);
 328     if(star->z<5*Z_MAX_DIST/6)
 329     {
 330         rb->lcd_drawpixel(x_draw, y_draw - 1);
 331         rb->lcd_drawpixel(x_draw - 1, y_draw);
 332         if(star->z<Z_MAX_DIST/2)
 333         {
 334             rb->lcd_drawpixel(x_draw + 1, y_draw);
 335             rb->lcd_drawpixel(x_draw, y_draw + 1);
 336         }
 337     }
 338 }
 339
 340 /*
 341  * Whole starfield operations
 342  */
 343 struct starfield
 344 {
 345     struct star tab[MAX_STARS];
 346     int nb_stars;
 347     int z_move;
 348     bool color;
 349 };
 350
 351 static inline void starfield_init(struct starfield * starfield)
 352 {
 353     starfield->nb_stars=0;
 354     starfield->z_move=INIT_SPACE_SPEED;
 355     starfield->color=false;
 356 }
 357
 358 static inline void starfield_add_stars(struct starfield * starfield,
 359                                        int nb_to_add)
 360 {
 361     int i, old_nb_stars;
 362     old_nb_stars=starfield->nb_stars;
 363     starfield->nb_stars+=nb_to_add;
 364
 365     if(starfield->nb_stars > MAX_STARS)
 366         starfield->nb_stars=MAX_STARS;
 367
 368     for( i=old_nb_stars ; i < starfield->nb_stars ; ++i )
 369     {
 370         star_init( &(starfield->tab[i]), starfield->z_move, starfield->color );
 371     }
 372 }
 373
 374 static inline void starfield_del_stars(struct starfield * starfield,
 375                                        int nb_to_add)
 376 {
 377     starfield->nb_stars-=nb_to_add;
 378     if(starfield->nb_stars<0)
 379         starfield->nb_stars=0;
 380 }
 381
 382 static inline void starfield_move_and_draw(struct starfield * starfield)
 383 {
 384     int i;
 385     for(i=0;i<starfield->nb_stars;++i)
 386     {
 387         star_move(&(starfield->tab[i]), starfield->z_move, starfield->color);
 388         star_draw(&(starfield->tab[i]), starfield->z_move, starfield->color);
 389     }
 390 }
 391
 392 static struct starfield starfield;
 393
 394 int plugin_main(void)
 395 {
 396     int button, avg_peak, t_disp=0;
 397     int font_h, font_w;
 398     bool pulse __attribute__ ((unused)) = true; /* 'unused' resolves warnings */
 399     rb->lcd_getstringsize("A", &font_w, &font_h);
 400     starfield_init(&starfield);
 401     starfield_add_stars(&starfield, INIT_STARS);
 402
 403 #if LCD_DEPTH > 1
 404      rb->lcd_set_backdrop(NULL);
 405 #endif
 406 #ifdef HAVE_LCD_COLOR
 407     rb->lcd_set_background(LCD_BLACK);
 408     rb->lcd_set_foreground(LCD_WHITE);
 409 #endif
 410
 411     while (true)
 412     {
 413         rb->sleep(1);
 414         rb->lcd_clear_display();
 415
 416 #if ((CONFIG_CODEC == SWCODEC)  || !defined(SIMULATOR) && \
 417     ((CONFIG_CODEC == MAS3587F) || (CONFIG_CODEC == MAS3539F)))
 418
 419         /* This will make the stars pulse to the music */
 420         if(pulse){
 421
 422             /* Get the peaks. ( Borrowed from vu_meter ) */
 423 #if (CONFIG_CODEC == SWCODEC)
 424             int left_peak, right_peak;
 425             rb->pcm_calculate_peaks(&left_peak, &right_peak);
 426 #else
 427             int left_peak = rb->mas_codec_readreg(0xC);
 428             int right_peak = rb->mas_codec_readreg(0xD);
 429 #endif
 430             /* Devide peak data by 4098 to bring the max
 431                value down from ~32k to 8 */
 432             left_peak  =    left_peak/0x1000;
 433             right_peak =    right_peak/0x1000;
 434
 435             /* Make sure they dont stop */
 436             if(left_peak<0x1)
 437                 left_peak     = 0x1;
 438             if(right_peak<0x1)
 439                 right_peak    = 0x1;
 440
 441             /* And make sure they dont go over 8 */
 442             if(left_peak>0x8)
 443                 left_peak     = 0x8;
 444             if(right_peak>0x8)
 445                 right_peak    = 0x8;
 446
 447             /* We need the average of both chanels */
 448             avg_peak     = ( left_peak + right_peak )/2;
 449
 450             /* Set the speed to the peak meter */
 451             starfield.z_move = avg_peak;
 452
 453         } /* if pulse */
 454 #else
 455         (void) avg_peak;
 456 #endif
 457         starfield_move_and_draw(&starfield);
 458
 459 #ifdef HAVE_LCD_COLOR
 460         rb->lcd_set_foreground(LCD_WHITE);
 461 #endif
 462
 463         /* if a parameter is updated (by the user), we must print it */
 464         if (t_disp > 0)
 465         {
 466             --t_disp;
 467 #ifdef HAVE_LCD_COLOR
 468             rb->lcd_set_foreground(LCD_WHITE);
 469 #endif
 470             rb->lcd_putsxyf(0, LCD_HEIGHT-font_h, "star:%d speed:%d",
 471                            starfield.nb_stars, starfield.z_move);
 472         }
 473         rb->lcd_update();
 474
 475         button = rb->button_get(false);
 476         switch(button)
 477         {
 478             case (STARFIELD_INCREASE_ZMOVE):
 479             case (STARFIELD_INCREASE_ZMOVE | BUTTON_REPEAT):
 480                 ++(starfield.z_move);
 481                 pulse=false;
 482                 t_disp=MSG_DISP_TIME;
 483                 break;
 484             case (STARFIELD_DECREASE_ZMOVE):
 485             case (STARFIELD_DECREASE_ZMOVE | BUTTON_REPEAT):
 486                 --(starfield.z_move);
 487                 pulse=false;
 488                 t_disp=MSG_DISP_TIME;
 489                 break;
 490             case(STARFIELD_INCREASE_NB_STARS):
 491             case(STARFIELD_INCREASE_NB_STARS | BUTTON_REPEAT):
 492                 starfield_add_stars(&starfield, STARFIELD_INCREASE_STEP);
 493                 t_disp=MSG_DISP_TIME;
 494                 break;
 495             case(STARFIELD_DECREASE_NB_STARS):
 496             case(STARFIELD_DECREASE_NB_STARS | BUTTON_REPEAT):
 497                 starfield_del_stars(&starfield, STARFIELD_INCREASE_STEP);
 498                 t_disp=MSG_DISP_TIME;
 499                 break;
 500 #ifdef HAVE_LCD_COLOR
 501             case(STARFIELD_TOGGLE_COLOR):
 502                 starfield.color=!starfield.color;
 503                 break;
 504 #endif
 505 #ifdef STARFIELD_RC_QUIT
 506             case STARFIELD_RC_QUIT:
 507 #endif
 508             case(STARFIELD_QUIT):
 509                 return PLUGIN_OK;
 510                 break;
 511             default:
 512                 exit_on_usb(button);
 513                 break;
 514         }
 515     }
 516 }
 517
 518 /*************************** Plugin entry point ****************************/
 519
 520 enum plugin_status plugin_start(const void* parameter)
 521 {
 522     int ret;
 523
 524     (void)parameter;
 525     /* Turn off backlight timeout */
 526     backlight_ignore_timeout();
 527
 528     ret = plugin_main();
 529
 530     /* Turn on backlight timeout (revert to settings) */
 531     backlight_use_settings();
 532
 533     return ret;
 534 }