apps/plugins/vu_meter.c

   1 /***************************************************************************
   2  *             __________               __   ___.
   3  *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
   4  *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
   5  *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
   6  *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
   7  *                     \/            \/     \/    \/            \/
   8  *
   9  * Copyright (C) 2003 Lee Pilgrim
  10  *
  11  * This program is free software; you can redistribute it and/or
  12  * modify it under the terms of the GNU General Public License
  13  * as published by the Free Software Foundation; either version 2
  14  * of the License, or (at your option) any later version.
  15  *
  16  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
  17  * KIND, either express or implied.
  18  *
  19  **************************************************************************/
  20 #include "plugin.h"
  21 #include "lib/fixedpoint.h"
  22 #include "lib/playback_control.h"
  23
  24 PLUGIN_HEADER
  25
  26 /* variable button definitions */
  27 #if CONFIG_KEYPAD == RECORDER_PAD
  28 #define VUMETER_QUIT BUTTON_OFF
  29 #define VUMETER_HELP BUTTON_ON
  30 #define VUMETER_MENU BUTTON_F1
  31 #define VUMETER_UP BUTTON_UP
  32 #define VUMETER_DOWN BUTTON_DOWN
  33 #define LABEL_HELP "ON"
  34 #define LABEL_QUIT "OFF"
  35 #define LABEL_MENU "F1"
  36 #define LABEL_VOLUME "UP/DOWN"
  37
  38 #elif CONFIG_KEYPAD == ARCHOS_AV300_PAD
  39 #define VUMETER_QUIT BUTTON_OFF
  40 #define VUMETER_HELP BUTTON_ON
  41 #define VUMETER_MENU BUTTON_F1
  42 #define VUMETER_UP BUTTON_UP
  43 #define VUMETER_DOWN BUTTON_DOWN
  44 #define LABEL_HELP "ON"
  45 #define LABEL_QUIT "OFF"
  46 #define LABEL_MENU "F1"
  47 #define LABEL_VOLUME "UP/DOWN"
  48
  49 #elif CONFIG_KEYPAD == ONDIO_PAD
  50 #define VUMETER_QUIT BUTTON_OFF
  51 #define VUMETER_HELP_PRE BUTTON_MENU
  52 #define VUMETER_HELP (BUTTON_MENU | BUTTON_REL)
  53 #define VUMETER_MENU_PRE BUTTON_MENU
  54 #define VUMETER_MENU (BUTTON_MENU | BUTTON_REPEAT)
  55 #define VUMETER_UP BUTTON_UP
  56 #define VUMETER_DOWN BUTTON_DOWN
  57 #define LABEL_HELP "MODE"
  58 #define LABEL_QUIT "OFF"
  59 #define LABEL_MENU "MODE.."
  60 #define LABEL_VOLUME "UP/DOWN"
  61
  62 #elif (CONFIG_KEYPAD == IRIVER_H100_PAD) || \
  63       (CONFIG_KEYPAD == IRIVER_H300_PAD)
  64 #define VUMETER_QUIT BUTTON_OFF
  65 #define VUMETER_HELP BUTTON_ON
  66 #define VUMETER_MENU BUTTON_SELECT
  67 #define VUMETER_MENU2 BUTTON_MODE
  68 #define VUMETER_UP BUTTON_UP
  69 #define VUMETER_DOWN BUTTON_DOWN
  70 #define LABEL_HELP "PLAY"
  71 #define LABEL_QUIT "STOP"
  72 #define LABEL_MENU "SELECT,MODE"
  73 #define LABEL_VOLUME "UP/DOWN"
  74
  75 #define VUMETER_RC_QUIT BUTTON_RC_STOP
  76
  77 #elif (CONFIG_KEYPAD == IPOD_4G_PAD) || \
  78       (CONFIG_KEYPAD == IPOD_3G_PAD) || \
  79       (CONFIG_KEYPAD == IPOD_1G2G_PAD)
  80 #define VUMETER_QUIT BUTTON_MENU
  81 #define VUMETER_HELP BUTTON_PLAY
  82 #define VUMETER_MENU BUTTON_SELECT
  83 #define VUMETER_UP BUTTON_SCROLL_FWD
  84 #define VUMETER_DOWN BUTTON_SCROLL_BACK
  85 #define LABEL_HELP "PLAY"
  86 #define LABEL_QUIT "MENU"
  87 #define LABEL_MENU "SELECT"
  88 #define LABEL_VOLUME "Wheel"
  89
  90 #elif (CONFIG_KEYPAD == GIGABEAT_PAD)
  91 #define VUMETER_QUIT BUTTON_POWER
  92 #define VUMETER_HELP BUTTON_A
  93 #define VUMETER_MENU BUTTON_MENU
  94 #define VUMETER_UP BUTTON_UP
  95 #define VUMETER_DOWN BUTTON_DOWN
  96 #define LABEL_HELP "A"
  97 #define LABEL_QUIT "POWER"
  98 #define LABEL_MENU "MENU"
  99 #define LABEL_VOLUME "UP/DOWN"
 100
 101 #elif (CONFIG_KEYPAD == SANSA_E200_PAD)
 102 #define VUMETER_QUIT BUTTON_POWER
 103 #define VUMETER_HELP BUTTON_REC
 104 #define VUMETER_MENU BUTTON_SELECT
 105 #define VUMETER_UP BUTTON_SCROLL_FWD
 106 #define VUMETER_DOWN BUTTON_SCROLL_BACK
 107 #define LABEL_HELP "REC"
 108 #define LABEL_QUIT "POWER"
 109 #define LABEL_MENU "SELECT"
 110 #define LABEL_VOLUME "Wheel"
 111
 112 #elif (CONFIG_KEYPAD == SANSA_FUZE_PAD)
 113 #define VUMETER_QUIT        (BUTTON_HOME|BUTTON_REPEAT)
 114 #define VUMETER_HELP        BUTTON_SELECT|BUTTON_REPEAT
 115 #define VUMETER_MENU        BUTTON_SELECT|BUTTON_REL
 116 #define VUMETER_UP          BUTTON_SCROLL_FWD
 117 #define VUMETER_DOWN        BUTTON_SCROLL_BACK
 118 #define LABEL_HELP          "Hold Select"
 119 #define LABEL_QUIT          "HOME"
 120 #define LABEL_MENU          "Select"
 121 #define LABEL_VOLUME        "Scrollwheel"
 122
 123 #elif (CONFIG_KEYPAD == SANSA_C200_PAD)
 124 #define VUMETER_QUIT BUTTON_POWER
 125 #define VUMETER_HELP BUTTON_REC
 126 #define VUMETER_MENU BUTTON_SELECT
 127 #define VUMETER_UP BUTTON_VOL_UP
 128 #define VUMETER_DOWN BUTTON_VOL_DOWN
 129 #define LABEL_HELP "REC"
 130 #define LABEL_QUIT "POWER"
 131 #define LABEL_MENU "SELECT"
 132 #define LABEL_VOLUME "VOL UP/DN"
 133
 134 #elif (CONFIG_KEYPAD == SANSA_CLIP_PAD)
 135 #define VUMETER_QUIT BUTTON_POWER
 136 #define VUMETER_HELP BUTTON_HOME
 137 #define VUMETER_MENU BUTTON_SELECT
 138 #define VUMETER_UP BUTTON_VOL_UP
 139 #define VUMETER_DOWN BUTTON_VOL_DOWN
 140 #define LABEL_HELP "HOME"
 141 #define LABEL_QUIT "POWER"
 142 #define LABEL_MENU "SELECT"
 143 #define LABEL_VOLUME "VOL UP/DN"
 144
 145 #elif (CONFIG_KEYPAD == SANSA_M200_PAD)
 146 #define VUMETER_QUIT BUTTON_POWER
 147 #define VUMETER_HELP (BUTTON_SELECT | BUTTON_UP)
 148 #define VUMETER_MENU (BUTTON_SELECT | BUTTON_REL)
 149 #define VUMETER_UP BUTTON_VOL_UP
 150 #define VUMETER_DOWN BUTTON_VOL_DOWN
 151 #define LABEL_HELP "SELECT + UP"
 152 #define LABEL_QUIT "POWER"
 153 #define LABEL_MENU "SELECT"
 154 #define LABEL_VOLUME "VOL UP/DN"
 155
 156 #elif CONFIG_KEYPAD == IAUDIO_X5M5_PAD
 157 #define VUMETER_QUIT BUTTON_POWER
 158 #define VUMETER_HELP BUTTON_PLAY
 159 #define VUMETER_MENU BUTTON_SELECT
 160 #define VUMETER_UP BUTTON_UP
 161 #define VUMETER_DOWN BUTTON_DOWN
 162 #define LABEL_HELP "PLAY"
 163 #define LABEL_QUIT "POWER"
 164 #define LABEL_MENU "SELECT"
 165 #define LABEL_VOLUME "UP/DOWN"
 166
 167 #elif CONFIG_KEYPAD == IRIVER_H10_PAD
 168 #define VUMETER_QUIT BUTTON_POWER
 169 #define VUMETER_HELP BUTTON_PLAY
 170 #define VUMETER_MENU BUTTON_REW
 171 #define VUMETER_UP BUTTON_SCROLL_UP
 172 #define VUMETER_DOWN BUTTON_SCROLL_DOWN
 173 #define LABEL_HELP "PLAY"
 174 #define LABEL_QUIT "POWER"
 175 #define LABEL_MENU "REW"
 176 #define LABEL_VOLUME "Scroller"
 177
 178 #elif (CONFIG_KEYPAD == GIGABEAT_S_PAD)
 179 #define VUMETER_QUIT BUTTON_BACK
 180 #define VUMETER_HELP BUTTON_NEXT
 181 #define VUMETER_MENU BUTTON_MENU
 182 #define VUMETER_UP BUTTON_UP
 183 #define VUMETER_DOWN BUTTON_DOWN
 184 #define LABEL_HELP "NEXT"
 185 #define LABEL_QUIT "BACK"
 186 #define LABEL_MENU "MENU"
 187 #define LABEL_VOLUME "UP/DOWN"
 188
 189 #elif (CONFIG_KEYPAD == MROBE100_PAD)
 190 #define VUMETER_QUIT BUTTON_POWER
 191 #define VUMETER_HELP BUTTON_DISPLAY
 192 #define VUMETER_MENU BUTTON_MENU
 193 #define VUMETER_UP BUTTON_UP
 194 #define VUMETER_DOWN BUTTON_DOWN
 195 #define LABEL_HELP "DISPLAY"
 196 #define LABEL_QUIT "POWER"
 197 #define LABEL_MENU "MENU"
 198 #define LABEL_VOLUME "UP/DOWN"
 199
 200 #elif CONFIG_KEYPAD == IAUDIO_M3_PAD
 201 #define VUMETER_QUIT BUTTON_RC_REC
 202 #define VUMETER_HELP BUTTON_RC_MODE
 203 #define VUMETER_MENU BUTTON_RC_MENU
 204 #define VUMETER_UP BUTTON_RC_VOL_UP
 205 #define VUMETER_DOWN BUTTON_RC_VOL_DOWN
 206 #define LABEL_HELP "MODE"
 207 #define LABEL_QUIT "REC"
 208 #define LABEL_MENU "MENU"
 209 #define LABEL_VOLUME "VOL UP/DN"
 210
 211 #elif CONFIG_KEYPAD == COWON_D2_PAD
 212 #define VUMETER_QUIT BUTTON_POWER
 213 #define VUMETER_MENU BUTTON_MENU
 214 #define LABEL_QUIT "POWER"
 215 #define LABEL_MENU "MENU"
 216
 217 #elif CONFIG_KEYPAD == CREATIVEZVM_PAD
 218 #define VUMETER_QUIT BUTTON_BACK
 219 #define VUMETER_HELP BUTTON_SELECT
 220 #define VUMETER_MENU BUTTON_MENU
 221 #define VUMETER_UP BUTTON_UP
 222 #define VUMETER_DOWN BUTTON_DOWN
 223 #define LABEL_HELP "MIDDLE"
 224 #define LABEL_QUIT "BACK"
 225 #define LABEL_MENU "MENU"
 226 #define LABEL_VOLUME "UP/DOWN"
 227
 228 #elif CONFIG_KEYPAD == PHILIPS_HDD1630_PAD
 229 #define VUMETER_QUIT BUTTON_POWER
 230 #define VUMETER_HELP BUTTON_VIEW
 231 #define VUMETER_MENU BUTTON_MENU
 232 #define VUMETER_UP BUTTON_UP
 233 #define VUMETER_DOWN BUTTON_DOWN
 234 #define LABEL_HELP "VIEW"
 235 #define LABEL_QUIT "POWER"
 236 #define LABEL_MENU "MENU"
 237 #define LABEL_VOLUME "UP/DOWN"
 238
 239 #elif CONFIG_KEYPAD == PHILIPS_SA9200_PAD
 240 #define VUMETER_QUIT BUTTON_POWER
 241 #define VUMETER_HELP BUTTON_RIGHT
 242 #define VUMETER_MENU BUTTON_MENU
 243 #define VUMETER_UP BUTTON_UP
 244 #define VUMETER_DOWN BUTTON_DOWN
 245 #define LABEL_HELP "RIGHT"
 246 #define LABEL_QUIT "POWER"
 247 #define LABEL_MENU "MENU"
 248 #define LABEL_VOLUME "UP/DOWN"
 249
 250 #elif CONFIG_KEYPAD == ONDAVX747_PAD
 251 #define VUMETER_QUIT BUTTON_POWER
 252 #define VUMETER_MENU BUTTON_MENU
 253 #define LABEL_QUIT "POWER"
 254 #define LABEL_MENU "MENU"
 255
 256 #elif CONFIG_KEYPAD == ONDAVX777_PAD
 257 #define VUMETER_QUIT BUTTON_POWER
 258 #define LABEL_QUIT "POWER"
 259
 260 #elif CONFIG_KEYPAD == MROBE500_PAD
 261 #define VUMETER_QUIT BUTTON_POWER
 262 #define LABEL_QUIT "POWER"
 263
 264 #elif CONFIG_KEYPAD == SAMSUNG_YH_PAD
 265 #define VUMETER_QUIT       BUTTON_REC
 266 #define VUMETER_HELP       BUTTON_PLAY
 267 #define VUMETER_MENU       BUTTON_LEFT
 268 #define VUMETER_UP         BUTTON_UP
 269 #define VUMETER_DOWN       BUTTON_DOWN
 270 #define LABEL_HELP "PLAY"
 271 #define LABEL_QUIT "REC"
 272 #define LABEL_MENU "LEFT"
 273 #define LABEL_VOLUME "UP/DOWN"
 274
 275 #elif CONFIG_KEYPAD == PBELL_VIBE500_PAD
 276 #define VUMETER_QUIT BUTTON_REC
 277 #define VUMETER_HELP BUTTON_PLAY
 278 #define VUMETER_MENU BUTTON_MENU
 279 #define VUMETER_UP   BUTTON_UP
 280 #define VUMETER_DOWN BUTTON_DOWN
 281 #define LABEL_HELP "PLAY"
 282 #define LABEL_QUIT "REC"
 283 #define LABEL_MENU "MENU"
 284 #define LABEL_VOLUME "UP/DOWN"
 285
 286 #else
 287 #error No keymap defined!
 288 #endif
 289
 290 #ifdef HAVE_TOUCHSCREEN
 291 #ifndef VUMETER_QUIT
 292 #define VUMETER_QUIT      BUTTON_TOPLEFT
 293 #define LABEL_QUIT        "TOPLEFT"
 294 #endif
 295 #ifndef VUMETER_HELP
 296 #define VUMETER_HELP      BUTTON_CENTER
 297 #define LABEL_HELP        "CENTRE"
 298 #endif
 299 #ifndef VUMETER_MENU
 300 #define VUMETER_MENU      BUTTON_TOPRIGHT
 301 #define LABEL_MENU        "TOPRIGHT"
 302 #endif
 303 #ifndef VUMETER_UP
 304 #define VUMETER_UP        BUTTON_TOPMIDDLE
 305 #endif
 306 #ifndef VUMETER_DOWN
 307 #define VUMETER_DOWN      BUTTON_BOTTOMMIDDLE
 308 #endif
 309 #ifndef LABEL_VOLUME
 310 #define LABEL_VOLUME      "UP/DOWN"
 311 #endif
 312 #endif
 313
 314 #if defined(SIMULATOR) && (CONFIG_CODEC != SWCODEC)
 315 #define mas_codec_readreg(x) rand()%MAX_PEAK
 316 #endif
 317
 318 /* Defines x positions on a logarithmic (dBfs) scale. */
 319 unsigned char analog_db_scale[LCD_WIDTH/2];
 320
 321 /* Define's y positions, to make the needle arch, like a real needle would. */
 322 unsigned char y_values[LCD_WIDTH/2];
 323
 324 const unsigned char digital_db_scale[] =
 325 {0,2,3,5,5,6,6,6,7,7,7,7,8,8,8,8,8,9,9,9,9,9,9,9,9,10,10,
 326 10,10,10,10,10,10,10,10,10,11,11,11,11,11,11,11,11};
 327
 328 const unsigned char needle_cover[] =
 329 {0x18, 0x1c, 0x1c, 0x1e, 0x1e, 0x1f, 0x1f, 0x1f, 0x1e, 0x1e, 0x1c, 0x1c, 0x18};
 330
 331 const unsigned char sound_speaker[] = {0x18,0x24,0x42,0xFF};
 332 const unsigned char sound_low_level[] = {0x24,0x18};
 333 const unsigned char sound_med_level[] = {0x42,0x3C};
 334 const unsigned char sound_high_level[] = {0x81,0x7E};
 335 const unsigned char sound_max_level[] = {0x0E,0xDF,0x0E};
 336
 337 const int half_width = LCD_WIDTH / 2;
 338 const int quarter_width = LCD_WIDTH / 4;
 339 const int half_height = LCD_HEIGHT / 2;
 340
 341 /* approx ratio of the previous hard coded values */
 342 const int analog_mini_1 = (LCD_WIDTH / 2)*0.1;
 343 const int analog_mini_2 = (LCD_WIDTH / 2)*0.25;
 344 const int analog_mini_3 = (LCD_WIDTH / 2)*0.4;
 345 const int analog_mini_4 = (LCD_WIDTH / 2)*0.75;
 346
 347 const int digital_block_width = LCD_WIDTH / 11;
 348 const int digital_block_gap = (int)(LCD_WIDTH / 11) / 10;
 349 /* ammount to lead in on left so 11x blocks are centered - is often 0 */
 350 const int digital_lead = (LCD_WIDTH - (((int)(LCD_WIDTH / 11))*11) ) / 2;
 351
 352 const int digital_block_height = (LCD_HEIGHT - 54) / 2 ;
 353
 354 #define ANALOG 0 /* The two meter types */
 355 #define DIGITAL 1
 356
 357 int left_needle_top_y;
 358 int left_needle_top_x;
 359 int last_left_needle_top_x;
 360 int right_needle_top_y;
 361 int right_needle_top_x;
 362 int last_right_needle_top_x = LCD_WIDTH / 2;
 363
 364 int num_left_leds;
 365 int num_right_leds;
 366 int last_num_left_leds;
 367 int last_num_right_leds;
 368
 369 int i;
 370 #ifdef HAVE_LCD_COLOR
 371 int screen_foreground;
 372 #endif
 373
 374 #define MAX_PEAK 0x8000
 375
 376 /* gap at the top for left/right etc */
 377 #define NEEDLE_TOP 25
 378
 379 /* pow(M_E, 5) * 65536 */
 380 #define E_POW_5 9726404
 381
 382 struct saved_settings {
 383     int meter_type;
 384     bool analog_use_db_scale;
 385     bool digital_use_db_scale;
 386     bool analog_minimeters;
 387     bool digital_minimeters;
 388     int analog_decay;
 389     int digital_decay;
 390 } vumeter_settings;
 391
 392 void reset_settings(void) {
 393     vumeter_settings.meter_type=ANALOG;
 394     vumeter_settings.analog_use_db_scale=true;
 395     vumeter_settings.digital_use_db_scale=true;
 396     vumeter_settings.analog_minimeters=true;
 397     vumeter_settings.digital_minimeters=false;
 398     vumeter_settings.analog_decay=3;
 399     vumeter_settings.digital_decay=0;
 400 }
 401
 402 void calc_scales(void)
 403 {
 404     unsigned int fx_log_factor = E_POW_5/half_width;
 405     unsigned int y,z;
 406
 407     long j;
 408     long k;
 409     int nh = LCD_HEIGHT - NEEDLE_TOP;
 410     long nh2 = nh*nh;
 411
 412     for (i=1; i <= half_width; i++)
 413     {
 414         /* analog scale */
 415         y = (half_width/5)*fp16_log(i*fx_log_factor);
 416
 417         /* better way of checking for negative values? */
 418         z = y>>16;
 419         if (z > LCD_WIDTH)
 420             z = 0;
 421
 422         analog_db_scale[i-1] = z;
 423         /* play nice */
 424         rb->yield();
 425
 426         /* y values (analog needle co-ords) */
 427         j = i - (int)(half_width/2);
 428         k = nh2 - ( j * j );
 429
 430         /* fsqrt+1 seems to give a closer approximation */
 431         y_values[i-1] = LCD_HEIGHT - (fp_sqrt(k, 16)>>8) - 1;
 432         rb->yield();
 433     }
 434 }
 435
 436 void load_settings(void) {
 437     int fp = rb->open(PLUGIN_DEMOS_DIR "/.vu_meter", O_RDONLY);
 438     if(fp>=0) {
 439             rb->read(fp, &vumeter_settings, sizeof(struct saved_settings));
 440             rb->close(fp);
 441     }
 442     else {
 443         reset_settings();
 444         rb->splash(HZ, "Press " LABEL_HELP " for help");
 445     }
 446 }
 447
 448 void save_settings(void) {
 449     int fp = rb->creat(PLUGIN_DEMOS_DIR "/.vu_meter");
 450     if(fp >= 0) {
 451         rb->write (fp, &vumeter_settings, sizeof(struct saved_settings));
 452         rb->close(fp);
 453     }
 454 }
 455
 456 void change_volume(int delta) {
 457     char curr_vol[5];
 458     int minvol = rb->sound_min(SOUND_VOLUME);
 459     int maxvol = rb->sound_max(SOUND_VOLUME);
 460     int vol = rb->global_settings->volume + delta;
 461
 462     if (vol > maxvol) vol = maxvol;
 463     else if (vol < minvol) vol = minvol;
 464     if (vol != rb->global_settings->volume) {
 465         rb->sound_set(SOUND_VOLUME, vol);
 466         rb->global_settings->volume = vol;
 467         rb->snprintf(curr_vol, sizeof(curr_vol), "%d", vol);
 468         rb->lcd_putsxy(0,0, curr_vol);
 469         rb->lcd_update();
 470         rb->sleep(HZ/12);
 471     }
 472 }
 473
 474 static bool vu_meter_menu(void)
 475 {
 476     int selection;
 477     bool menu_quit = false;
 478     bool exit = false;
 479
 480     MENUITEM_STRINGLIST(menu,"VU Meter Menu",NULL,"Meter Type","Scale",
 481                         "Minimeters","Decay Speed","Playback Control",
 482                         "Quit");
 483
 484     static const struct opt_items meter_type_option[2] = {
 485         { "Analog", -1 },
 486         { "Digital", -1 },
 487     };
 488
 489     static const struct opt_items decay_speed_option[7] = {
 490         { "No Decay", -1 },
 491         { "Very Fast", -1 },
 492         { "Fast", -1 },
 493         { "Medium", -1 },
 494         { "Medium-Slow", -1 },
 495         { "Slow", -1 },
 496         { "Very Slow", -1 },
 497     };
 498
 499     while (!menu_quit) {
 500         switch(rb->do_menu(&menu, &selection, NULL, false))
 501         {
 502             case 0:
 503                 rb->set_option("Meter Type", &vumeter_settings.meter_type, INT,
 504                                meter_type_option, 2, NULL);
 505                 break;
 506
 507             case 1:
 508                 if(vumeter_settings.meter_type==ANALOG)
 509                 {
 510                     rb->set_bool_options("Scale", &vumeter_settings.analog_use_db_scale,
 511                                          "dBfs", -1, "Linear", -1, NULL);
 512                 }
 513                 else
 514                 {
 515                     rb->set_bool_options("Scale", &vumeter_settings.digital_use_db_scale,
 516                                          "dBfs", -1, "Linear", -1, NULL);
 517                 }
 518                 break;
 519
 520             case 2:
 521                 if(vumeter_settings.meter_type==ANALOG)
 522                 {
 523                     rb->set_bool("Enable Minimeters",
 524                                  &vumeter_settings.analog_minimeters);
 525                 }
 526                 else
 527                 {
 528                     rb->set_bool("Enable Minimeters",
 529                                  &vumeter_settings.digital_minimeters);
 530                 }
 531                 break;
 532
 533             case 3:
 534                 if(vumeter_settings.meter_type==ANALOG)
 535                 {
 536                     rb->set_option("Decay Speed", &vumeter_settings.analog_decay, INT,
 537                                decay_speed_option, 7, NULL);
 538                 }
 539                 else
 540                 {
 541                     rb->set_option("Decay Speed", &vumeter_settings.digital_decay, INT,
 542                                decay_speed_option, 7, NULL);
 543                 }
 544                 break;
 545
 546             case 4:
 547                 playback_control(NULL);
 548                 break;
 549
 550             case 5:
 551                 exit = true;
 552                 /* fall through to exit the menu */
 553             default:
 554                 menu_quit = true;
 555                 break;
 556         }
 557     }
 558     /* the menu uses the userfont, set it back to sysfont */
 559     rb->lcd_setfont(FONT_SYSFIXED);
 560     return exit;
 561 }
 562
 563 void draw_analog_minimeters(void) {
 564     rb->lcd_mono_bitmap(sound_speaker, quarter_width-28, 12, 4, 8);
 565     rb->lcd_set_drawmode(DRMODE_FG);
 566     if(analog_mini_1<left_needle_top_x)
 567         rb->lcd_mono_bitmap(sound_low_level, quarter_width-23, 12, 2, 8);
 568     if(analog_mini_2<left_needle_top_x)
 569         rb->lcd_mono_bitmap(sound_med_level, quarter_width-21, 12, 2, 8);
 570     if(analog_mini_3<left_needle_top_x)
 571         rb->lcd_mono_bitmap(sound_high_level, quarter_width-19, 12, 2, 8);
 572     if(analog_mini_4<left_needle_top_x)
 573         rb->lcd_mono_bitmap(sound_max_level, quarter_width-16, 12, 3, 8);
 574
 575     rb->lcd_set_drawmode(DRMODE_SOLID);
 576     rb->lcd_mono_bitmap(sound_speaker, quarter_width+half_width-30, 12, 4, 8);
 577     rb->lcd_set_drawmode(DRMODE_FG);
 578     if(analog_mini_1<(right_needle_top_x-half_width))
 579         rb->lcd_mono_bitmap(sound_low_level, quarter_width+half_width-25, 12, 2, 8);
 580     if(analog_mini_2<(right_needle_top_x-half_width))
 581         rb->lcd_mono_bitmap(sound_med_level, quarter_width+half_width-23, 12, 2, 8);
 582     if(analog_mini_3<(right_needle_top_x-half_width))
 583         rb->lcd_mono_bitmap(sound_high_level, quarter_width+half_width-21, 12, 2, 8);
 584     if(analog_mini_4<(right_needle_top_x-half_width))
 585         rb->lcd_mono_bitmap(sound_max_level, quarter_width+half_width-18, 12, 3, 8);
 586     rb->lcd_set_drawmode(DRMODE_SOLID);
 587 }
 588
 589 void draw_digital_minimeters(void) {
 590 #ifdef HAVE_LCD_COLOR
 591     rb->lcd_set_foreground(LCD_RGBPACK(255, 255 - 23 * num_left_leds, 0));
 592 #endif
 593     rb->lcd_mono_bitmap(sound_speaker, 34, half_height-8, 4, 8);
 594     rb->lcd_set_drawmode(DRMODE_FG);
 595     if(1<num_left_leds)
 596         rb->lcd_mono_bitmap(sound_low_level, 39, half_height-8, 2, 8);
 597     if(2<num_left_leds)
 598         rb->lcd_mono_bitmap(sound_med_level, 41, half_height-8, 2, 8);
 599     if(5<num_left_leds)
 600         rb->lcd_mono_bitmap(sound_high_level, 43, half_height-8, 2, 8);
 601     if(8<num_left_leds)
 602         rb->lcd_mono_bitmap(sound_max_level, 46, half_height-8, 3, 8);
 603
 604 #ifdef HAVE_LCD_COLOR
 605     rb->lcd_set_foreground(LCD_RGBPACK(255, 255 - 23 * num_right_leds, 0));
 606 #endif
 607     rb->lcd_set_drawmode(DRMODE_SOLID);
 608     rb->lcd_mono_bitmap(sound_speaker, 34, half_height+8, 4, 8);
 609     rb->lcd_set_drawmode(DRMODE_FG);
 610     if(1<(num_right_leds))
 611         rb->lcd_mono_bitmap(sound_low_level, 39, half_height+8, 2, 8);
 612     if(2<(num_right_leds))
 613         rb->lcd_mono_bitmap(sound_med_level, 41, half_height+8, 2, 8);
 614     if(5<(num_right_leds))
 615         rb->lcd_mono_bitmap(sound_high_level, 43, half_height+8, 2, 8);
 616     if(8<(num_right_leds))
 617         rb->lcd_mono_bitmap(sound_max_level, 46, half_height+8, 3, 8);
 618     rb->lcd_set_drawmode(DRMODE_SOLID);
 619
 620 #ifdef HAVE_LCD_COLOR
 621     rb->lcd_set_foreground(screen_foreground);
 622 #endif
 623 }
 624
 625 void analog_meter(void) {
 626
 627 #if (CONFIG_CODEC == MAS3587F) || (CONFIG_CODEC == MAS3539F)
 628     int left_peak = rb->mas_codec_readreg(0xC);
 629     int right_peak = rb->mas_codec_readreg(0xD);
 630 #elif (CONFIG_CODEC == SWCODEC)
 631     int left_peak, right_peak;
 632     rb->pcm_calculate_peaks(&left_peak, &right_peak);
 633 #endif
 634
 635     if(vumeter_settings.analog_use_db_scale) {
 636         left_needle_top_x = analog_db_scale[left_peak * half_width / MAX_PEAK];
 637         right_needle_top_x = analog_db_scale[right_peak * half_width / MAX_PEAK] + half_width;
 638     }
 639     else {
 640         left_needle_top_x = left_peak * half_width / MAX_PEAK;
 641         right_needle_top_x = right_peak * half_width / MAX_PEAK + half_width;
 642     }
 643
 644     /* Makes a decay on the needle */
 645     left_needle_top_x = (left_needle_top_x+last_left_needle_top_x*vumeter_settings.analog_decay)
 646                         /(vumeter_settings.analog_decay+1);
 647     right_needle_top_x = (right_needle_top_x+last_right_needle_top_x*vumeter_settings.analog_decay)
 648                          /(vumeter_settings.analog_decay+1);
 649
 650     last_left_needle_top_x = left_needle_top_x;
 651     last_right_needle_top_x = right_needle_top_x;
 652
 653     left_needle_top_y = y_values[left_needle_top_x];
 654     right_needle_top_y = y_values[right_needle_top_x-half_width];
 655
 656     /* Needles */
 657     rb->lcd_drawline(quarter_width, LCD_HEIGHT-1, left_needle_top_x, left_needle_top_y);
 658     rb->lcd_drawline((quarter_width+half_width), LCD_HEIGHT-1, right_needle_top_x, right_needle_top_y);
 659
 660     if(vumeter_settings.analog_minimeters)
 661         draw_analog_minimeters();
 662
 663     /* Needle covers */
 664     rb->lcd_set_drawmode(DRMODE_FG);
 665     rb->lcd_mono_bitmap(needle_cover, quarter_width-6, LCD_HEIGHT-5, 13, 5);
 666     rb->lcd_mono_bitmap(needle_cover, half_width+quarter_width-6, LCD_HEIGHT-5, 13, 5);
 667     rb->lcd_set_drawmode(DRMODE_SOLID);
 668
 669     /* Show Left/Right */
 670     rb->lcd_putsxy(quarter_width-12, 12, "Left");
 671     rb->lcd_putsxy(half_width+quarter_width-12, 12, "Right");
 672
 673     /* Line above/below  the Left/Right text */
 674     rb->lcd_hline(0,LCD_WIDTH-1,9);
 675     rb->lcd_hline(0,LCD_WIDTH-1,21);
 676
 677     for(i=0; i<half_width; i++) {
 678         rb->lcd_drawpixel(i, (y_values[i])-2);
 679         rb->lcd_drawpixel(i+half_width, (y_values[i])-2);
 680     }
 681 }
 682
 683 void digital_meter(void) {
 684 #if (CONFIG_CODEC == MAS3587F) || (CONFIG_CODEC == MAS3539F)
 685     int left_peak = rb->mas_codec_readreg(0xC);
 686     int right_peak = rb->mas_codec_readreg(0xD);
 687 #elif (CONFIG_CODEC == SWCODEC)
 688     int left_peak, right_peak;
 689     rb->pcm_calculate_peaks(&left_peak, &right_peak);
 690 #endif
 691
 692     if(vumeter_settings.digital_use_db_scale) {
 693         num_left_leds = digital_db_scale[left_peak * 44 / MAX_PEAK];
 694         num_right_leds = digital_db_scale[right_peak * 44 / MAX_PEAK];
 695     }
 696     else {
 697         num_left_leds = left_peak * 11 / MAX_PEAK;
 698         num_right_leds = right_peak * 11 / MAX_PEAK;
 699     }
 700
 701     num_left_leds = (num_left_leds+last_num_left_leds*vumeter_settings.digital_decay)
 702                     /(vumeter_settings.digital_decay+1);
 703     num_right_leds = (num_right_leds+last_num_right_leds*vumeter_settings.digital_decay)
 704                      /(vumeter_settings.digital_decay+1);
 705
 706     last_num_left_leds = num_left_leds;
 707     last_num_right_leds = num_right_leds;
 708
 709     rb->lcd_set_drawmode(DRMODE_FG);
 710     /* LEDS */
 711     for(i=0; i<num_left_leds; i++) {
 712 #ifdef HAVE_LCD_COLOR
 713         rb->lcd_set_foreground(LCD_RGBPACK(255, 255 - 23 * i, 0));
 714 #endif
 715         rb->lcd_fillrect((digital_lead + (i*digital_block_width)),
 716             14, digital_block_width - digital_block_gap, digital_block_height);
 717     }
 718
 719     for(i=0; i<num_right_leds; i++) {
 720 #ifdef HAVE_LCD_COLOR
 721         rb->lcd_set_foreground(LCD_RGBPACK(255, 255 - 23 * i, 0));
 722 #endif
 723         rb->lcd_fillrect((digital_lead + (i*digital_block_width)),
 724             (half_height + 20), digital_block_width - digital_block_gap,
 725             digital_block_height);
 726     }
 727
 728 #ifdef HAVE_LCD_COLOR
 729     rb->lcd_set_foreground(screen_foreground);
 730 #endif
 731     rb->lcd_set_drawmode(DRMODE_SOLID);
 732
 733     if(vumeter_settings.digital_minimeters)
 734         draw_digital_minimeters();
 735
 736     /* Lines above/below where the LEDS are */
 737     rb->lcd_hline(0,LCD_WIDTH-1,12);
 738     rb->lcd_hline(0,LCD_WIDTH-1,half_height-12);
 739
 740     rb->lcd_hline(0,LCD_WIDTH-1,half_height+18);
 741     rb->lcd_hline(0,LCD_WIDTH-1,LCD_HEIGHT-6);
 742
 743     /* Show Left/Right */
 744     rb->lcd_putsxy(2, half_height-8, "Left");
 745     rb->lcd_putsxy(2, half_height+8, "Right");
 746
 747     /* Line in the middle */
 748     rb->lcd_hline(0,LCD_WIDTH-1,half_height+3);
 749 }
 750
 751 enum plugin_status plugin_start(const void* parameter) {
 752     int button;
 753     int lastbutton = BUTTON_NONE;
 754
 755     (void) parameter;
 756
 757     calc_scales();
 758
 759     load_settings();
 760     rb->lcd_setfont(FONT_SYSFIXED);
 761 #ifdef HAVE_LCD_COLOR
 762     screen_foreground = rb->lcd_get_foreground();
 763 #endif
 764
 765     while (1)
 766     {
 767         rb->lcd_clear_display();
 768
 769         rb->lcd_putsxy(half_width-23, 0, "VU Meter");
 770
 771         if(vumeter_settings.meter_type==ANALOG)
 772             analog_meter();
 773         else
 774             digital_meter();
 775
 776         rb->lcd_update();
 777
 778         button = rb->button_get_w_tmo(1);
 779         switch (button)
 780         {
 781 #ifdef VUMETER_RC_QUIT
 782             case VUMETER_RC_QUIT:
 783 #endif
 784             case VUMETER_QUIT:
 785                 save_settings();
 786                 return PLUGIN_OK;
 787                 break;
 788
 789             case VUMETER_HELP:
 790 #ifdef VUMETER_HELP_PRE
 791                 if (lastbutton != VUMETER_HELP_PRE)
 792                     break;
 793 #endif
 794                 rb->lcd_clear_display();
 795                 rb->lcd_puts(0, 0, LABEL_QUIT ": Exit");
 796                 rb->lcd_puts(0, 1, LABEL_MENU ": Settings");
 797                 rb->lcd_puts(0, 2, LABEL_VOLUME ": Volume");
 798                 rb->lcd_update();
 799                 rb->sleep(HZ*3);
 800                 break;
 801
 802             case VUMETER_MENU:
 803
 804 #ifdef VUMETER_MENU2
 805             case VUMETER_MENU2:
 806 #endif
 807
 808 #ifdef VUMETER_MENU_PRE
 809                 if (lastbutton != VUMETER_MENU_PRE)
 810                     break;
 811 #endif
 812                 if(vu_meter_menu())
 813                     return PLUGIN_OK;
 814                 break;
 815
 816             case VUMETER_UP:
 817             case VUMETER_UP | BUTTON_REPEAT:
 818                 change_volume(1);
 819                 break;
 820
 821             case VUMETER_DOWN:
 822             case VUMETER_DOWN | BUTTON_REPEAT:
 823                 change_volume(-1);
 824                 break;
 825
 826             default:
 827                 if(rb->default_event_handler(button) == SYS_USB_CONNECTED)
 828                     return PLUGIN_USB_CONNECTED;
 829                 break;
 830         }
 831         if (button != BUTTON_NONE)
 832             lastbutton = button;
 833     }
 834 }