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 == COWOND2_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 == ONDAVX747_PAD) || CONFIG_KEYPAD == MROBE500_PAD
 135 #define STARFIELD_QUIT BUTTON_POWER
 136
 137 #elif CONFIG_KEYPAD == SAMSUNG_YH_PAD
 138 #define STARFIELD_QUIT               BUTTON_FFWD
 139 #define STARFIELD_INCREASE_ZMOVE     BUTTON_UP
 140 #define STARFIELD_DECREASE_ZMOVE     BUTTON_DOWN
 141 #define STARFIELD_INCREASE_NB_STARS  BUTTON_RIGHT
 142 #define STARFIELD_DECREASE_NB_STARS  BUTTON_LEFT
 143 #define STARFIELD_TOGGLE_COLOR       BUTTON_PLAY
 144
 145 #endif
 146
 147 #ifdef HAVE_TOUCHSCREEN
 148 #ifndef STARFIELD_QUIT
 149 #define STARFIELD_QUIT              BUTTON_TOPLEFT
 150 #endif
 151 #ifndef STARFIELD_INCREASE_ZMOVE
 152 #define STARFIELD_INCREASE_ZMOVE    BUTTON_TOPMIDDLE
 153 #endif
 154 #ifndef STARFIELD_DECREASE_ZMOVE
 155 #define STARFIELD_DECREASE_ZMOVE    BUTTON_BOTTOMMIDDLE
 156 #endif
 157 #ifndef STARFIELD_INCREASE_NB_STARS
 158 #define STARFIELD_INCREASE_NB_STARS BUTTON_MIDRIGHT
 159 #endif
 160 #ifndef STARFIELD_DECREASE_NB_STARS
 161 #define STARFIELD_DECREASE_NB_STARS BUTTON_MIDLEFT
 162 #endif
 163 #ifndef STARFIELD_TOGGLE_COLOR
 164 #define STARFIELD_TOGGLE_COLOR      BUTTON_CENTER
 165 #endif
 166 #endif
 167
 168 #ifndef STARFIELD_QUIT
 169 #define STARFIELD_QUIT BUTTON_OFF
 170 #endif
 171 #ifndef STARFIELD_INCREASE_ZMOVE
 172 #define STARFIELD_INCREASE_ZMOVE BUTTON_UP
 173 #endif
 174 #ifndef STARFIELD_DECREASE_ZMOVE
 175 #define STARFIELD_DECREASE_ZMOVE BUTTON_DOWN
 176 #endif
 177 #ifndef STARFIELD_INCREASE_NB_STARS
 178 #define STARFIELD_INCREASE_NB_STARS BUTTON_RIGHT
 179 #endif
 180 #ifndef STARFIELD_DECREASE_NB_STARS
 181 #define STARFIELD_DECREASE_NB_STARS BUTTON_LEFT
 182 #endif
 183
 184 #ifndef STARFIELD_TOGGLE_COLOR
 185 #ifdef BUTTON_SELECT
 186 #define STARFIELD_TOGGLE_COLOR BUTTON_SELECT
 187 #else
 188 #define STARFIELD_TOGGLE_COLOR BUTTON_PLAY
 189 #endif
 190 #endif
 191 #if (CONFIG_KEYPAD == IRIVER_H100_PAD) || (CONFIG_KEYPAD == IRIVER_H300_PAD)
 192 #define STARFIELD_RC_QUIT BUTTON_RC_STOP
 193 #endif
 194
 195
 196 #define LCD_CENTER_X (LCD_WIDTH/2)
 197 #define LCD_CENTER_Y (LCD_HEIGHT/2)
 198 #define Z_MAX_DIST 100
 199
 200
 201 #define MAX_STARS (LCD_WIDTH*LCD_HEIGHT*20)/100
 202 #define INIT_STARS 200
 203 #define STARFIELD_INCREASE_STEP 50
 204 #define INIT_SPACE_SPEED 1
 205 #define STAR_MAX_VELOCITY 2
 206 /*
 207  * max 3d coord in the 2d screen :
 208  * example with x
 209  *  x2d=x3d/z+LCD_CENTER_X (+LCD_CENTER_X to center ...)
 210  * so
 211  *  max_x2d=max_x3d/max_z+LCD_CENTER_X
 212  *  max_x3d=(max_x2d-LCD_CENTER_X)*max_z
 213  * with
 214  *  max_x2d = LCD_WIDTH
 215  *  max_z = Z_MAX_DIST
 216  * we have now
 217  * max_x3d=(LCD_WIDTH-LCD_CENTER_X)*Z_MAX_DIST
 218  * max_x3d=LCD_CENTER_X*Z_MAX_DIST
 219  */
 220
 221 #define MAX_INIT_STAR_X LCD_CENTER_X*Z_MAX_DIST
 222 #define MAX_INIT_STAR_Y LCD_CENTER_Y*Z_MAX_DIST
 223
 224 #define MSG_DISP_TIME 30
 225
 226 /*
 227  * Each star's stuffs
 228  */
 229 struct star
 230 {
 231     int x,y,z;
 232     int velocity;
 233 #ifdef HAVE_LCD_COLOR
 234     int color;
 235 #endif
 236 };
 237
 238 static inline void star_init(struct star * star, int z_move, bool color)
 239 {
 240     star->velocity=rb->rand() % STAR_MAX_VELOCITY+1;
 241     /* choose x between -MAX_INIT_STAR_X and MAX_INIT_STAR_X */
 242     star->x=rb->rand() % (2*MAX_INIT_STAR_X)-MAX_INIT_STAR_X;
 243     star->y=rb->rand() % (2*MAX_INIT_STAR_Y)-MAX_INIT_STAR_Y;
 244 #ifdef HAVE_LCD_COLOR
 245     if(color)
 246         star->color=LCD_RGBPACK(rb->rand()%128+128,rb->rand()%128+128,
 247                                 rb->rand()%128+128);
 248     else
 249         star->color=LCD_WHITE;
 250 #else
 251     (void)color;
 252 #endif
 253     if(z_move>=0)
 254         star->z=Z_MAX_DIST;
 255     else
 256         star->z=rb->rand() %Z_MAX_DIST/2+1;
 257 }
 258
 259 static inline void star_move(struct star * star, int z_move, bool color)
 260 {
 261     star->z -= z_move*star->velocity;
 262     if (star->z <= 0 || star->z > Z_MAX_DIST)
 263         star_init(star, z_move, color);
 264 }
 265
 266 static inline void star_draw(struct star * star, int z_move, bool color)
 267 {
 268     int x_draw, y_draw;
 269     /*
 270      * 3d -> 2d : projection on the screen : x2d=x3d/z (thales theorem)
 271      * we put the star in the center of the screen
 272      */
 273     x_draw = star->x / star->z + LCD_CENTER_X;
 274     if (x_draw < 1 || x_draw >= LCD_WIDTH)
 275     {
 276         star_init(star, z_move, color);
 277         return;
 278     }
 279     y_draw  = star->y / star->z + LCD_CENTER_Y;
 280     if (y_draw < 1 || y_draw >= LCD_HEIGHT)
 281     {
 282         star_init(star, z_move, color);
 283         return;
 284     }
 285
 286 #ifdef HAVE_LCD_COLOR
 287     rb->lcd_set_foreground(star->color);
 288 #endif
 289
 290     rb->lcd_drawpixel(x_draw, y_draw);
 291     if(star->z<5*Z_MAX_DIST/6)
 292     {
 293         rb->lcd_drawpixel(x_draw, y_draw - 1);
 294         rb->lcd_drawpixel(x_draw - 1, y_draw);
 295         if(star->z<Z_MAX_DIST/2)
 296         {
 297             rb->lcd_drawpixel(x_draw + 1, y_draw);
 298             rb->lcd_drawpixel(x_draw, y_draw + 1);
 299         }
 300     }
 301 }
 302
 303 /*
 304  * Whole starfield operations
 305  */
 306 struct starfield
 307 {
 308     struct star tab[MAX_STARS];
 309     int nb_stars;
 310     int z_move;
 311     bool color;
 312 };
 313
 314 static inline void starfield_init(struct starfield * starfield)
 315 {
 316     starfield->nb_stars=0;
 317     starfield->z_move=INIT_SPACE_SPEED;
 318     starfield->color=false;
 319 }
 320
 321 static inline void starfield_add_stars(struct starfield * starfield,
 322                                        int nb_to_add)
 323 {
 324     int i, old_nb_stars;
 325     old_nb_stars=starfield->nb_stars;
 326     starfield->nb_stars+=nb_to_add;
 327
 328     if(starfield->nb_stars > MAX_STARS)
 329         starfield->nb_stars=MAX_STARS;
 330
 331     for( i=old_nb_stars ; i < starfield->nb_stars ; ++i )
 332     {
 333         star_init( &(starfield->tab[i]), starfield->z_move, starfield->color );
 334     }
 335 }
 336
 337 static inline void starfield_del_stars(struct starfield * starfield,
 338                                        int nb_to_add)
 339 {
 340     starfield->nb_stars-=nb_to_add;
 341     if(starfield->nb_stars<0)
 342         starfield->nb_stars=0;
 343 }
 344
 345 static inline void starfield_move_and_draw(struct starfield * starfield)
 346 {
 347     int i;
 348     for(i=0;i<starfield->nb_stars;++i)
 349     {
 350         star_move(&(starfield->tab[i]), starfield->z_move, starfield->color);
 351         star_draw(&(starfield->tab[i]), starfield->z_move, starfield->color);
 352     }
 353 }
 354
 355 static struct starfield starfield;
 356
 357 int plugin_main(void)
 358 {
 359     char str_buffer[40];
 360     int button, avg_peak, t_disp=0;
 361     int font_h, font_w;
 362     bool pulse=true;
 363     rb->lcd_getstringsize("A", &font_w, &font_h);
 364     starfield_init(&starfield);
 365     starfield_add_stars(&starfield, INIT_STARS);
 366
 367 #if LCD_DEPTH > 1
 368      rb->lcd_set_backdrop(NULL);
 369 #endif
 370 #ifdef HAVE_LCD_COLOR
 371     rb->lcd_set_background(LCD_BLACK);
 372     rb->lcd_set_foreground(LCD_WHITE);
 373 #endif
 374
 375     while (true)
 376     {
 377         rb->sleep(1);
 378         rb->lcd_clear_display();
 379
 380 #if ((CONFIG_CODEC == SWCODEC)  || !defined(SIMULATOR) && \
 381     ((CONFIG_CODEC == MAS3587F) || (CONFIG_CODEC == MAS3539F)))
 382
 383         /* This will make the stars pulse to the music */
 384         if(pulse==true){
 385
 386             /* Get the peaks. ( Borrowed from vu_meter ) */
 387 #if (CONFIG_CODEC == SWCODEC)
 388             int left_peak, right_peak;
 389             rb->pcm_calculate_peaks(&left_peak, &right_peak);
 390 #else
 391             int left_peak = rb->mas_codec_readreg(0xC);
 392             int right_peak = rb->mas_codec_readreg(0xD);
 393 #endif
 394             /* Devide peak data by 4098 to bring the max
 395                value down from ~32k to 8 */
 396             left_peak  =    left_peak/0x1000;
 397             right_peak =    right_peak/0x1000;
 398
 399             /* Make sure they dont stop */
 400             if(left_peak<0x1)
 401                 left_peak     = 0x1;
 402             if(right_peak<0x1)
 403                 right_peak    = 0x1;
 404
 405             /* And make sure they dont go over 8 */
 406             if(left_peak>0x8)
 407                 left_peak     = 0x8;
 408             if(right_peak>0x8)
 409                 right_peak    = 0x8;
 410
 411             /* We need the average of both chanels */
 412             avg_peak     = ( left_peak + right_peak )/2;
 413
 414             /* Set the speed to the peak meter */
 415             starfield.z_move = avg_peak;
 416
 417         } /* if pulse */
 418 #else
 419         (void) avg_peak;
 420 #endif
 421         starfield_move_and_draw(&starfield);
 422
 423 #ifdef HAVE_LCD_COLOR
 424         rb->lcd_set_foreground(LCD_WHITE);
 425 #endif
 426
 427         /* if a parameter is updated (by the user), we must print it */
 428         if (t_disp > 0)
 429         {
 430             --t_disp;
 431             rb->snprintf(str_buffer, sizeof(str_buffer),
 432                          "star:%d speed:%d",
 433                          starfield.nb_stars,
 434                          starfield.z_move);
 435 #ifdef HAVE_LCD_COLOR
 436             rb->lcd_set_foreground(LCD_WHITE);
 437 #endif
 438             rb->lcd_putsxy(0, LCD_HEIGHT-font_h, str_buffer);
 439         }
 440         rb->lcd_update();
 441
 442         button = rb->button_get(false);
 443         switch(button)
 444         {
 445             case (STARFIELD_INCREASE_ZMOVE):
 446             case (STARFIELD_INCREASE_ZMOVE | BUTTON_REPEAT):
 447                 ++(starfield.z_move);
 448                 pulse=false;
 449                 t_disp=MSG_DISP_TIME;
 450                 break;
 451             case (STARFIELD_DECREASE_ZMOVE):
 452             case (STARFIELD_DECREASE_ZMOVE | BUTTON_REPEAT):
 453                 --(starfield.z_move);
 454                 pulse=false;
 455                 t_disp=MSG_DISP_TIME;
 456                 break;
 457             case(STARFIELD_INCREASE_NB_STARS):
 458             case(STARFIELD_INCREASE_NB_STARS | BUTTON_REPEAT):
 459                 starfield_add_stars(&starfield, STARFIELD_INCREASE_STEP);
 460                 t_disp=MSG_DISP_TIME;
 461                 break;
 462             case(STARFIELD_DECREASE_NB_STARS):
 463             case(STARFIELD_DECREASE_NB_STARS | BUTTON_REPEAT):
 464                 starfield_del_stars(&starfield, STARFIELD_INCREASE_STEP);
 465                 t_disp=MSG_DISP_TIME;
 466                 break;
 467 #ifdef HAVE_LCD_COLOR
 468             case(STARFIELD_TOGGLE_COLOR):
 469                 starfield.color=!starfield.color;
 470                 break;
 471 #endif
 472 #ifdef STARFIELD_RC_QUIT
 473             case STARFIELD_RC_QUIT:
 474 #endif
 475             case(STARFIELD_QUIT):
 476             case(SYS_USB_CONNECTED):
 477                 /* Turn on backlight timeout (revert to settings) */
 478                 backlight_use_settings(); /* backlight control in lib/helper.c*/
 479                 return PLUGIN_OK;
 480                 break;
 481         }
 482     }
 483 }
 484
 485 /*************************** Plugin entry point ****************************/
 486
 487 enum plugin_status plugin_start(UNUSED_ATTR const void* parameter)
 488 {
 489     int ret;
 490
 491     /* Turn off backlight timeout */
 492     backlight_force_on(); /* backlight control in lib/helper.c */
 493
 494     ret = plugin_main();
 495
 496     return ret;
 497 }
 498
 499 #endif /* #ifdef HAVE_LCD_BITMAP */