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