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