apps/plugins/matrix.c

   1 /***************************************************************************
   2  *             __________               __   ___.
   3  *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
   4  *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
   5  *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
   6  *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
   7  *                     \/            \/     \/    \/            \/
   8  * $Id$
   9  *
  10  * Copyright (C) 1999 Chris Allegretta
  11  * Copyright (C) 2005 Alastair S - ported to podzilla
  12  * Copyright (C) 2005 Jonas Häggqvist - ported to rockbox
  13  *
  14  *
  15  * This program is free software; you can redistribute it and/or
  16  * modify it under the terms of the GNU General Public License
  17  * as published by the Free Software Foundation; either version 2
  18  * of the License, or (at your option) any later version.
  19  *
  20  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
  21  * KIND, either express or implied.
  22  *
  23  ****************************************************************************/
  24
  25 /*
  26  * TODO:
  27  *  - The font is a bit large, create smaller one
  28  *  - For colour/greyscale displays, the font from the xscreensaver xmatrix
  29  *    should be converted and used
  30  * BUGS:
  31  *  - The animation "dies" after a few seconds, not sure why. Works in sim.
  32  *  Symtom Fixed Oct 2007 GRaTT (Gerritt Gonzales)
  33  */
  34
  35
  36 #include "plugin.h"
  37 PLUGIN_HEADER
  38
  39 /* Images */
  40 #include "pluginbitmaps/matrix_bold.h"
  41 #include "pluginbitmaps/matrix_normal.h"
  42 #define MAXCHARS 27 - 1
  43 #define COL_W 14
  44 #define COL_H 15
  45
  46 #define COLS LCD_WIDTH/COL_W
  47 #define ROWS LCD_HEIGHT/COL_H
  48
  49 #define LEFTMARGIN (LCD_WIDTH-(COLS*COL_W))/2
  50 #define TOPMARGIN  (LCD_HEIGHT-(ROWS*COL_H))/2
  51
  52 #if (CONFIG_KEYPAD == IPOD_4G_PAD) || \
  53       (CONFIG_KEYPAD == IPOD_3G_PAD) || \
  54       (CONFIG_KEYPAD == IPOD_1G2G_PAD)
  55 #define MATRIX_EXIT BUTTON_MENU
  56 #define MATRIX_SLEEP_MORE BUTTON_SCROLL_BACK|BUTTON_REPEAT
  57 #define MATRIX_SLEEP_LESS BUTTON_SCROLL_FWD|BUTTON_REPEAT
  58 #define MATRIX_PAUSE BUTTON_PLAY
  59
  60 #elif (CONFIG_KEYPAD == IRIVER_H100_PAD) || \
  61       (CONFIG_KEYPAD == IRIVER_H300_PAD)
  62 #define MATRIX_EXIT BUTTON_OFF
  63 #define MATRIX_SLEEP_MORE BUTTON_UP
  64 #define MATRIX_SLEEP_LESS BUTTON_DOWN
  65 #define MATRIX_PAUSE BUTTON_SELECT
  66
  67 #elif (CONFIG_KEYPAD == IRIVER_H10_PAD)
  68 #define MATRIX_EXIT BUTTON_POWER
  69 #define MATRIX_SLEEP_MORE BUTTON_SCROLL_UP|BUTTON_REPEAT
  70 #define MATRIX_SLEEP_LESS BUTTON_SCROLL_DOWN|BUTTON_REPEAT
  71 #define MATRIX_PAUSE BUTTON_PLAY
  72
  73 #elif (CONFIG_KEYPAD == IAUDIO_X5M5_PAD)
  74 #define MATRIX_EXIT BUTTON_POWER
  75 #define MATRIX_SLEEP_MORE BUTTON_UP
  76 #define MATRIX_SLEEP_LESS BUTTON_DOWN
  77 #define MATRIX_PAUSE BUTTON_PLAY
  78
  79 #elif (CONFIG_KEYPAD == GIGABEAT_PAD)
  80 #define MATRIX_EXIT BUTTON_POWER
  81 #define MATRIX_SLEEP_MORE BUTTON_UP
  82 #define MATRIX_SLEEP_LESS BUTTON_DOWN
  83 #define MATRIX_PAUSE BUTTON_SELECT
  84
  85 #elif CONFIG_KEYPAD == SANSA_E200_PAD
  86 #define MATRIX_EXIT BUTTON_POWER
  87 #define MATRIX_SLEEP_MORE BUTTON_SCROLL_BACK|BUTTON_REPEAT
  88 #define MATRIX_SLEEP_LESS BUTTON_SCROLL_FWD|BUTTON_REPEAT
  89 #define MATRIX_PAUSE BUTTON_SELECT
  90
  91 #elif CONFIG_KEYPAD == SANSA_FUZE_PAD
  92 #define MATRIX_EXIT         (BUTTON_HOME|BUTTON_REPEAT)
  93 #define MATRIX_SLEEP_MORE   BUTTON_SCROLL_BACK|BUTTON_REPEAT
  94 #define MATRIX_SLEEP_LESS   BUTTON_SCROLL_FWD|BUTTON_REPEAT
  95 #define MATRIX_PAUSE        BUTTON_SELECT
  96
  97 #elif CONFIG_KEYPAD == SANSA_C200_PAD
  98 #define MATRIX_EXIT BUTTON_POWER
  99 #define MATRIX_SLEEP_MORE BUTTON_UP
 100 #define MATRIX_SLEEP_LESS BUTTON_DOWN
 101 #define MATRIX_PAUSE BUTTON_SELECT
 102
 103 #elif (CONFIG_KEYPAD == GIGABEAT_S_PAD)
 104 #define MATRIX_EXIT BUTTON_BACK
 105 #define MATRIX_SLEEP_MORE BUTTON_UP
 106 #define MATRIX_SLEEP_LESS BUTTON_DOWN
 107 #define MATRIX_PAUSE BUTTON_SELECT
 108
 109 #elif CONFIG_KEYPAD == IAUDIO_M3_PAD
 110 #define MATRIX_EXIT BUTTON_RC_REC
 111 #define MATRIX_SLEEP_MORE BUTTON_RC_VOL_UP
 112 #define MATRIX_SLEEP_LESS BUTTON_RC_VOL_DOWN
 113 #define MATRIX_PAUSE BUTTON_RC_PLAY
 114
 115 #elif (CONFIG_KEYPAD == COWON_D2_PAD)
 116 #define MATRIX_EXIT BUTTON_POWER
 117
 118 #elif CONFIG_KEYPAD == IAUDIO67_PAD
 119 #define MATRIX_EXIT BUTTON_POWER
 120 #define MATRIX_SLEEP_MORE BUTTON_VOLUP
 121 #define MATRIX_SLEEP_LESS BUTTON_VOLDOWN
 122 #define MATRIX_PAUSE BUTTON_PLAY
 123
 124 #elif CONFIG_KEYPAD == CREATIVEZVM_PAD
 125 #define MATRIX_EXIT BUTTON_BACK
 126 #define MATRIX_SLEEP_MORE BUTTON_UP
 127 #define MATRIX_SLEEP_LESS BUTTON_DOWN
 128 #define MATRIX_PAUSE BUTTON_PLAY
 129
 130 #elif CONFIG_KEYPAD == PHILIPS_HDD1630_PAD
 131 #define MATRIX_EXIT BUTTON_POWER
 132 #define MATRIX_SLEEP_MORE BUTTON_UP
 133 #define MATRIX_SLEEP_LESS BUTTON_DOWN
 134 #define MATRIX_PAUSE BUTTON_SELECT
 135
 136 #elif CONFIG_KEYPAD == PHILIPS_SA9200_PAD
 137 #define MATRIX_EXIT BUTTON_POWER
 138 #define MATRIX_SLEEP_MORE BUTTON_UP
 139 #define MATRIX_SLEEP_LESS BUTTON_DOWN
 140 #define MATRIX_PAUSE BUTTON_PLAY
 141
 142 #elif (CONFIG_KEYPAD == ONDAVX747_PAD) || \
 143 CONFIG_KEYPAD == ONDAVX777_PAD || \
 144 CONFIG_KEYPAD == MROBE500_PAD
 145 #define MATRIX_EXIT BUTTON_POWER
 146
 147 #elif CONFIG_KEYPAD == SAMSUNG_YH_PAD
 148 #define MATRIX_EXIT       BUTTON_REC
 149 #define MATRIX_SLEEP_MORE BUTTON_UP
 150 #define MATRIX_SLEEP_LESS BUTTON_DOWN
 151 #define MATRIX_PAUSE      BUTTON_PLAY
 152
 153 #else
 154 #error Unsupported keypad
 155 #endif
 156
 157 #ifdef HAVE_TOUCHSCREEN
 158 #ifndef MATRIX_EXIT
 159 #define MATRIX_EXIT       BUTTON_TOPLEFT
 160 #endif
 161 #ifndef MATRIX_SLEEP_MORE
 162 #define MATRIX_SLEEP_MORE BUTTON_MIDRIGHT
 163 #endif
 164 #ifndef MATRIX_SLEEP_LESS
 165 #define MATRIX_SLEEP_LESS BUTTON_MIDLEFT
 166 #endif
 167 #ifndef MATRIX_PAUSE
 168 #define MATRIX_PAUSE      BUTTON_CENTER
 169 #endif
 170 #endif
 171
 172 #define SLEEP HZ/50
 173
 174 /* Each position is of this type */
 175 typedef struct cmatrix {
 176     int val;
 177     int bold;
 178 } cmatrix;
 179
 180 /* The matrix - who'd have guessed it was just a few hundred bytes? */
 181 static cmatrix matrix[ROWS][COLS];
 182 static int length[COLS];
 183 static int spaces[COLS];
 184 static int updates[COLS];
 185
 186 static void matrix_init(void) {
 187     int i,j;
 188
 189     /* Seed rand */
 190     rb->srand(*rb->current_tick);
 191
 192     /* Make the matrix */
 193     for (i = 0; i <= ROWS; i++) {
 194         for (j = 0; j <= COLS - 1; j++ ) {
 195             matrix[i][j].val = -1;
 196             matrix[i][j].bold = 0;
 197         }
 198     }
 199
 200     for (j = 0; j <= COLS - 1; j++) {
 201         /* Set up spaces[] array of how many spaces to skip */
 202         spaces[j] = rb->rand() % ROWS + 1;
 203
 204         /* And length of the stream */
 205         length[j] = rb->rand() % (ROWS - 3) + 3;
 206
 207         /* Sentinel value for creation of new objects */
 208         matrix[1][j].val = 129;
 209
 210         /* And set updates[] array for update speed. */
 211         updates[j] = rb->rand() % 3 + 1;
 212     }
 213 }
 214
 215 static void matrix_blit_char(const int row, const int col, int cha)
 216 {
 217     if (cha == 129 || cha == 2 || cha > MAXCHARS)
 218         cha = 0;
 219
 220     if (matrix[row][col].bold == 1) {
 221         rb->lcd_bitmap_part(matrix_bold, cha*COL_W, 0,
 222                 STRIDE( SCREEN_MAIN,
 223                         BMPWIDTH_matrix_bold, BMPHEIGHT_matrix_bold),
 224                 col*COL_W + LEFTMARGIN, row*COL_H + TOPMARGIN, COL_W, COL_H);
 225     }
 226     else {
 227         rb->lcd_bitmap_part(matrix_normal, cha*COL_W, 0,
 228                 STRIDE( SCREEN_MAIN,
 229                         BMPWIDTH_matrix_normal, BMPHEIGHT_matrix_normal),
 230                 col*COL_W + LEFTMARGIN, row*COL_H + TOPMARGIN, COL_W, COL_H);
 231     }
 232 }
 233
 234 static void matrix_loop(void)
 235 {
 236     int i, j = 0, y, z, firstcoldone = 0;
 237     static int count = 0;
 238     int randomness = 6;
 239
 240     count++;
 241     if (count > 4)
 242         count = 1;
 243
 244     for (j = 0; j <= COLS - 1; j++) {
 245         if (count > updates[j]) {
 246             /* New style scrolling */
 247             if (matrix[0][j].val == -1 && matrix[1][j].val == 129
 248                     && spaces[j] > 0) {
 249                 matrix[0][j].val = -1;
 250                 spaces[j]--;
 251             } else if (matrix[0][j].val == -1 && matrix[1][j].val == 129){
 252                 length[j] = rb->rand() % (ROWS - 3) + 3;
 253                 matrix[0][j].val = rb->rand() % (MAXCHARS-1) + 1;
 254                 if (rb->rand() % 2 == 1)
 255                     matrix[0][j].bold = 2;
 256                 spaces[j] = rb->rand() % ROWS + 1;
 257             }
 258             i = 0;
 259             y = 0;
 260             firstcoldone = 0;
 261             while (i <= ROWS) {
 262             /* Skip over spaces */
 263         /* this is whear the characters were disappearing */
 264 /*
 265                 while (i <= ROWS && (matrix[i][j].val == 129 ||
 266                             matrix[i][j].val == -1))
 267                     i++;
 268 */
 269     /* A little more random now for spaces */
 270                if (rb->rand() % randomness == 1){
 271                while (i <= ROWS && (matrix[i][j].val == 129 ||
 272                             matrix[i][j].val == -1)){
 273                     i++;
 274             randomness--;
 275                 if(randomness <=1)
 276                     randomness = 6;}
 277                 }else{
 278             randomness++;
 279                 if(randomness >6)
 280                 randomness = 6;
 281         }
 282
 283
 284                 if (i > ROWS)
 285                     break;
 286
 287                 /* Go to the head of this collumn */
 288                 z = i;
 289                 y = 0;
 290                 while (i <= ROWS && (matrix[i][j].val != 129 &&
 291                             matrix[i][j].val != -1)) {
 292                     i++;
 293                     y++;
 294                 }
 295
 296                 if (i > ROWS) {
 297                     matrix[z][j].val = 129;
 298                     matrix[ROWS - 1][j].bold = 1;
 299                     matrix_blit_char(z - 1, j, matrix[z][j].val);
 300                     continue;
 301                 }
 302
 303                 matrix[i][j].val = rb->rand() % (MAXCHARS-1) + 1;
 304
 305                 if (matrix[i - 1][j].bold == 2) {
 306                     matrix[i - 1][j].bold = 1;
 307                     matrix[i][j].bold = 2;
 308                 }
 309
 310                 /* If we're at the top of the collumn and it's reached its
 311                  * full length (about to start moving down), we do this
 312                  * to get it moving. This is also how we keep segments
 313                  * not already growing from growing accidentally =>
 314                  */
 315                 if (y > length[j] || firstcoldone) {
 316                     matrix[z][j].val = 129;
 317                     matrix[0][j].val = -1;
 318                 }
 319                 firstcoldone = 1;
 320                 i++;
 321             }
 322             for (i = 1; i <= ROWS; i++) {
 323                 if (matrix[i][j].val == 0 || matrix[i][j].bold == 2) {
 324                     if (matrix[i][j].val == 0)
 325                         matrix_blit_char(i - 1, j, 20);
 326                     else
 327                         matrix_blit_char(i - 1, j, matrix[i][j].val);
 328                 } else {
 329                     if (matrix[i][j].val == 1)
 330                         matrix_blit_char(i - 1, j, 2);
 331                     else if (matrix[i][j].val == -1)
 332                         matrix_blit_char(i - 1, j, 129);
 333                     else
 334                         matrix_blit_char(i - 1, j, matrix[i][j].val);
 335                 }
 336             }
 337         }
 338     }
 339 }
 340
 341 enum plugin_status plugin_start(const void* parameter) {
 342     int button;
 343     int sleep = SLEEP;
 344     bool frozen = false;
 345
 346     (void)parameter;
 347
 348     rb->lcd_set_background(LCD_BLACK);
 349     rb->lcd_set_backdrop(NULL);
 350     rb->lcd_clear_display();
 351     matrix_init();
 352
 353     while (1) {
 354         if (!frozen) {
 355             matrix_loop();
 356             rb->lcd_update();
 357             rb->sleep(sleep);
 358         }
 359         button = rb->button_get(frozen);
 360         switch(button) {
 361             case MATRIX_PAUSE:
 362                 frozen = !frozen;
 363                 break;
 364             case MATRIX_EXIT:
 365                 return PLUGIN_OK;
 366                 break;
 367             case MATRIX_SLEEP_MORE:
 368                 /* Sleep longer */
 369                 sleep += SLEEP;
 370                 break;
 371             case MATRIX_SLEEP_LESS:
 372                 /* Sleep less */
 373                 sleep -= SLEEP;
 374                 if (sleep < 0) sleep = 0;
 375                 break;
 376             default:
 377                 if (rb->default_event_handler(button) == SYS_USB_CONNECTED) {
 378                     return PLUGIN_USB_CONNECTED;
 379                 }
 380                 break;
 381         }
 382     }
 383     return PLUGIN_OK;
 384 }