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 #else
 276 #error No keymap defined!
 277 #endif
 278
 279 #ifdef HAVE_TOUCHSCREEN
 280 #ifndef VUMETER_QUIT
 281 #define VUMETER_QUIT      BUTTON_TOPLEFT
 282 #define LABEL_QUIT        "TOPLEFT"
 283 #endif
 284 #ifndef VUMETER_HELP
 285 #define VUMETER_HELP      BUTTON_CENTER
 286 #define LABEL_HELP        "CENTRE"
 287 #endif
 288 #ifndef VUMETER_MENU
 289 #define VUMETER_MENU      BUTTON_TOPRIGHT
 290 #define LABEL_MENU        "TOPRIGHT"
 291 #endif
 292 #ifndef VUMETER_UP
 293 #define VUMETER_UP        BUTTON_TOPMIDDLE
 294 #endif
 295 #ifndef VUMETER_DOWN
 296 #define VUMETER_DOWN      BUTTON_BOTTOMMIDDLE
 297 #endif
 298 #ifndef LABEL_VOLUME
 299 #define LABEL_VOLUME      "UP/DOWN"
 300 #endif
 301 #endif
 302
 303 #if defined(SIMULATOR) && (CONFIG_CODEC != SWCODEC)
 304 #define mas_codec_readreg(x) rand()%MAX_PEAK
 305 #endif
 306
 307 /* Defines x positions on a logarithmic (dBfs) scale. */
 308 unsigned char analog_db_scale[LCD_WIDTH/2];
 309
 310 /* Define's y positions, to make the needle arch, like a real needle would. */
 311 unsigned char y_values[LCD_WIDTH/2];
 312
 313 const unsigned char digital_db_scale[] =
 314 {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,
 315 10,10,10,10,10,10,10,10,10,11,11,11,11,11,11,11,11};
 316
 317 const unsigned char needle_cover[] =
 318 {0x18, 0x1c, 0x1c, 0x1e, 0x1e, 0x1f, 0x1f, 0x1f, 0x1e, 0x1e, 0x1c, 0x1c, 0x18};
 319
 320 const unsigned char sound_speaker[] = {0x18,0x24,0x42,0xFF};
 321 const unsigned char sound_low_level[] = {0x24,0x18};
 322 const unsigned char sound_med_level[] = {0x42,0x3C};
 323 const unsigned char sound_high_level[] = {0x81,0x7E};
 324 const unsigned char sound_max_level[] = {0x0E,0xDF,0x0E};
 325
 326 const int half_width = LCD_WIDTH / 2;
 327 const int quarter_width = LCD_WIDTH / 4;
 328 const int half_height = LCD_HEIGHT / 2;
 329
 330 /* approx ratio of the previous hard coded values */
 331 const int analog_mini_1 = (LCD_WIDTH / 2)*0.1;
 332 const int analog_mini_2 = (LCD_WIDTH / 2)*0.25;
 333 const int analog_mini_3 = (LCD_WIDTH / 2)*0.4;
 334 const int analog_mini_4 = (LCD_WIDTH / 2)*0.75;
 335
 336 const int digital_block_width = LCD_WIDTH / 11;
 337 const int digital_block_gap = (int)(LCD_WIDTH / 11) / 10;
 338 /* ammount to lead in on left so 11x blocks are centered - is often 0 */
 339 const int digital_lead = (LCD_WIDTH - (((int)(LCD_WIDTH / 11))*11) ) / 2;
 340
 341 const int digital_block_height = (LCD_HEIGHT - 54) / 2 ;
 342
 343 #define ANALOG 0 /* The two meter types */
 344 #define DIGITAL 1
 345
 346 int left_needle_top_y;
 347 int left_needle_top_x;
 348 int last_left_needle_top_x;
 349 int right_needle_top_y;
 350 int right_needle_top_x;
 351 int last_right_needle_top_x = LCD_WIDTH / 2;
 352
 353 int num_left_leds;
 354 int num_right_leds;
 355 int last_num_left_leds;
 356 int last_num_right_leds;
 357
 358 int i;
 359 #ifdef HAVE_LCD_COLOR
 360 int screen_foreground;
 361 #endif
 362
 363 #define MAX_PEAK 0x8000
 364
 365 /* gap at the top for left/right etc */
 366 #define NEEDLE_TOP 25
 367
 368 /* pow(M_E, 5) * 65536 */
 369 #define E_POW_5 9726404
 370
 371 struct saved_settings {
 372     int meter_type;
 373     bool analog_use_db_scale;
 374     bool digital_use_db_scale;
 375     bool analog_minimeters;
 376     bool digital_minimeters;
 377     int analog_decay;
 378     int digital_decay;
 379 } vumeter_settings;
 380
 381 void reset_settings(void) {
 382     vumeter_settings.meter_type=ANALOG;
 383     vumeter_settings.analog_use_db_scale=true;
 384     vumeter_settings.digital_use_db_scale=true;
 385     vumeter_settings.analog_minimeters=true;
 386     vumeter_settings.digital_minimeters=false;
 387     vumeter_settings.analog_decay=3;
 388     vumeter_settings.digital_decay=0;
 389 }
 390
 391 void calc_scales(void)
 392 {
 393     unsigned int fx_log_factor = E_POW_5/half_width;
 394     unsigned int y,z;
 395
 396     long j;
 397     long k;
 398     int nh = LCD_HEIGHT - NEEDLE_TOP;
 399     long nh2 = nh*nh;
 400
 401     for (i=1; i <= half_width; i++)
 402     {
 403         /* analog scale */
 404         y = (half_width/5)*fp16_log(i*fx_log_factor);
 405
 406         /* better way of checking for negative values? */
 407         z = y>>16;
 408         if (z > LCD_WIDTH)
 409             z = 0;
 410
 411         analog_db_scale[i-1] = z;
 412         /* play nice */
 413         rb->yield();
 414
 415         /* y values (analog needle co-ords) */
 416         j = i - (int)(half_width/2);
 417         k = nh2 - ( j * j );
 418
 419         /* fsqrt+1 seems to give a closer approximation */
 420         y_values[i-1] = LCD_HEIGHT - (fp_sqrt(k, 16)>>8) - 1;
 421         rb->yield();
 422     }
 423 }
 424
 425 void load_settings(void) {
 426     int fp = rb->open(PLUGIN_DEMOS_DIR "/.vu_meter", O_RDONLY);
 427     if(fp>=0) {
 428             rb->read(fp, &vumeter_settings, sizeof(struct saved_settings));
 429             rb->close(fp);
 430     }
 431     else {
 432         reset_settings();
 433         rb->splash(HZ, "Press " LABEL_HELP " for help");
 434     }
 435 }
 436
 437 void save_settings(void) {
 438     int fp = rb->creat(PLUGIN_DEMOS_DIR "/.vu_meter");
 439     if(fp >= 0) {
 440         rb->write (fp, &vumeter_settings, sizeof(struct saved_settings));
 441         rb->close(fp);
 442     }
 443 }
 444
 445 void change_volume(int delta) {
 446     char curr_vol[5];
 447     int minvol = rb->sound_min(SOUND_VOLUME);
 448     int maxvol = rb->sound_max(SOUND_VOLUME);
 449     int vol = rb->global_settings->volume + delta;
 450
 451     if (vol > maxvol) vol = maxvol;
 452     else if (vol < minvol) vol = minvol;
 453     if (vol != rb->global_settings->volume) {
 454         rb->sound_set(SOUND_VOLUME, vol);
 455         rb->global_settings->volume = vol;
 456         rb->snprintf(curr_vol, sizeof(curr_vol), "%d", vol);
 457         rb->lcd_putsxy(0,0, curr_vol);
 458         rb->lcd_update();
 459         rb->sleep(HZ/12);
 460     }
 461 }
 462
 463 static bool vu_meter_menu(void)
 464 {
 465     int selection;
 466     bool menu_quit = false;
 467     bool exit = false;
 468
 469     MENUITEM_STRINGLIST(menu,"VU Meter Menu",NULL,"Meter Type","Scale",
 470                         "Minimeters","Decay Speed","Playback Control",
 471                         "Quit");
 472
 473     static const struct opt_items meter_type_option[2] = {
 474         { "Analog", -1 },
 475         { "Digital", -1 },
 476     };
 477
 478     static const struct opt_items decay_speed_option[7] = {
 479         { "No Decay", -1 },
 480         { "Very Fast", -1 },
 481         { "Fast", -1 },
 482         { "Medium", -1 },
 483         { "Medium-Slow", -1 },
 484         { "Slow", -1 },
 485         { "Very Slow", -1 },
 486     };
 487
 488     while (!menu_quit) {
 489         switch(rb->do_menu(&menu, &selection, NULL, false))
 490         {
 491             case 0:
 492                 rb->set_option("Meter Type", &vumeter_settings.meter_type, INT,
 493                                meter_type_option, 2, NULL);
 494                 break;
 495
 496             case 1:
 497                 if(vumeter_settings.meter_type==ANALOG)
 498                 {
 499                     rb->set_bool_options("Scale", &vumeter_settings.analog_use_db_scale,
 500                                          "dBfs", -1, "Linear", -1, NULL);
 501                 }
 502                 else
 503                 {
 504                     rb->set_bool_options("Scale", &vumeter_settings.digital_use_db_scale,
 505                                          "dBfs", -1, "Linear", -1, NULL);
 506                 }
 507                 break;
 508
 509             case 2:
 510                 if(vumeter_settings.meter_type==ANALOG)
 511                 {
 512                     rb->set_bool("Enable Minimeters",
 513                                  &vumeter_settings.analog_minimeters);
 514                 }
 515                 else
 516                 {
 517                     rb->set_bool("Enable Minimeters",
 518                                  &vumeter_settings.digital_minimeters);
 519                 }
 520                 break;
 521
 522             case 3:
 523                 if(vumeter_settings.meter_type==ANALOG)
 524                 {
 525                     rb->set_option("Decay Speed", &vumeter_settings.analog_decay, INT,
 526                                decay_speed_option, 7, NULL);
 527                 }
 528                 else
 529                 {
 530                     rb->set_option("Decay Speed", &vumeter_settings.digital_decay, INT,
 531                                decay_speed_option, 7, NULL);
 532                 }
 533                 break;
 534
 535             case 4:
 536                 playback_control(NULL);
 537                 break;
 538
 539             case 5:
 540                 exit = true;
 541                 /* fall through to exit the menu */
 542             default:
 543                 menu_quit = true;
 544                 break;
 545         }
 546     }
 547     /* the menu uses the userfont, set it back to sysfont */
 548     rb->lcd_setfont(FONT_SYSFIXED);
 549     return exit;
 550 }
 551
 552 void draw_analog_minimeters(void) {
 553     rb->lcd_mono_bitmap(sound_speaker, quarter_width-28, 12, 4, 8);
 554     rb->lcd_set_drawmode(DRMODE_FG);
 555     if(analog_mini_1<left_needle_top_x)
 556         rb->lcd_mono_bitmap(sound_low_level, quarter_width-23, 12, 2, 8);
 557     if(analog_mini_2<left_needle_top_x)
 558         rb->lcd_mono_bitmap(sound_med_level, quarter_width-21, 12, 2, 8);
 559     if(analog_mini_3<left_needle_top_x)
 560         rb->lcd_mono_bitmap(sound_high_level, quarter_width-19, 12, 2, 8);
 561     if(analog_mini_4<left_needle_top_x)
 562         rb->lcd_mono_bitmap(sound_max_level, quarter_width-16, 12, 3, 8);
 563
 564     rb->lcd_set_drawmode(DRMODE_SOLID);
 565     rb->lcd_mono_bitmap(sound_speaker, quarter_width+half_width-30, 12, 4, 8);
 566     rb->lcd_set_drawmode(DRMODE_FG);
 567     if(analog_mini_1<(right_needle_top_x-half_width))
 568         rb->lcd_mono_bitmap(sound_low_level, quarter_width+half_width-25, 12, 2, 8);
 569     if(analog_mini_2<(right_needle_top_x-half_width))
 570         rb->lcd_mono_bitmap(sound_med_level, quarter_width+half_width-23, 12, 2, 8);
 571     if(analog_mini_3<(right_needle_top_x-half_width))
 572         rb->lcd_mono_bitmap(sound_high_level, quarter_width+half_width-21, 12, 2, 8);
 573     if(analog_mini_4<(right_needle_top_x-half_width))
 574         rb->lcd_mono_bitmap(sound_max_level, quarter_width+half_width-18, 12, 3, 8);
 575     rb->lcd_set_drawmode(DRMODE_SOLID);
 576 }
 577
 578 void draw_digital_minimeters(void) {
 579 #ifdef HAVE_LCD_COLOR
 580     rb->lcd_set_foreground(LCD_RGBPACK(255, 255 - 23 * num_left_leds, 0));
 581 #endif
 582     rb->lcd_mono_bitmap(sound_speaker, 34, half_height-8, 4, 8);
 583     rb->lcd_set_drawmode(DRMODE_FG);
 584     if(1<num_left_leds)
 585         rb->lcd_mono_bitmap(sound_low_level, 39, half_height-8, 2, 8);
 586     if(2<num_left_leds)
 587         rb->lcd_mono_bitmap(sound_med_level, 41, half_height-8, 2, 8);
 588     if(5<num_left_leds)
 589         rb->lcd_mono_bitmap(sound_high_level, 43, half_height-8, 2, 8);
 590     if(8<num_left_leds)
 591         rb->lcd_mono_bitmap(sound_max_level, 46, half_height-8, 3, 8);
 592
 593 #ifdef HAVE_LCD_COLOR
 594     rb->lcd_set_foreground(LCD_RGBPACK(255, 255 - 23 * num_right_leds, 0));
 595 #endif
 596     rb->lcd_set_drawmode(DRMODE_SOLID);
 597     rb->lcd_mono_bitmap(sound_speaker, 34, half_height+8, 4, 8);
 598     rb->lcd_set_drawmode(DRMODE_FG);
 599     if(1<(num_right_leds))
 600         rb->lcd_mono_bitmap(sound_low_level, 39, half_height+8, 2, 8);
 601     if(2<(num_right_leds))
 602         rb->lcd_mono_bitmap(sound_med_level, 41, half_height+8, 2, 8);
 603     if(5<(num_right_leds))
 604         rb->lcd_mono_bitmap(sound_high_level, 43, half_height+8, 2, 8);
 605     if(8<(num_right_leds))
 606         rb->lcd_mono_bitmap(sound_max_level, 46, half_height+8, 3, 8);
 607     rb->lcd_set_drawmode(DRMODE_SOLID);
 608
 609 #ifdef HAVE_LCD_COLOR
 610     rb->lcd_set_foreground(screen_foreground);
 611 #endif
 612 }
 613
 614 void analog_meter(void) {
 615
 616 #if (CONFIG_CODEC == MAS3587F) || (CONFIG_CODEC == MAS3539F)
 617     int left_peak = rb->mas_codec_readreg(0xC);
 618     int right_peak = rb->mas_codec_readreg(0xD);
 619 #elif (CONFIG_CODEC == SWCODEC)
 620     int left_peak, right_peak;
 621     rb->pcm_calculate_peaks(&left_peak, &right_peak);
 622 #endif
 623
 624     if(vumeter_settings.analog_use_db_scale) {
 625         left_needle_top_x = analog_db_scale[left_peak * half_width / MAX_PEAK];
 626         right_needle_top_x = analog_db_scale[right_peak * half_width / MAX_PEAK] + half_width;
 627     }
 628     else {
 629         left_needle_top_x = left_peak * half_width / MAX_PEAK;
 630         right_needle_top_x = right_peak * half_width / MAX_PEAK + half_width;
 631     }
 632
 633     /* Makes a decay on the needle */
 634     left_needle_top_x = (left_needle_top_x+last_left_needle_top_x*vumeter_settings.analog_decay)
 635                         /(vumeter_settings.analog_decay+1);
 636     right_needle_top_x = (right_needle_top_x+last_right_needle_top_x*vumeter_settings.analog_decay)
 637                          /(vumeter_settings.analog_decay+1);
 638
 639     last_left_needle_top_x = left_needle_top_x;
 640     last_right_needle_top_x = right_needle_top_x;
 641
 642     left_needle_top_y = y_values[left_needle_top_x];
 643     right_needle_top_y = y_values[right_needle_top_x-half_width];
 644
 645     /* Needles */
 646     rb->lcd_drawline(quarter_width, LCD_HEIGHT-1, left_needle_top_x, left_needle_top_y);
 647     rb->lcd_drawline((quarter_width+half_width), LCD_HEIGHT-1, right_needle_top_x, right_needle_top_y);
 648
 649     if(vumeter_settings.analog_minimeters)
 650         draw_analog_minimeters();
 651
 652     /* Needle covers */
 653     rb->lcd_set_drawmode(DRMODE_FG);
 654     rb->lcd_mono_bitmap(needle_cover, quarter_width-6, LCD_HEIGHT-5, 13, 5);
 655     rb->lcd_mono_bitmap(needle_cover, half_width+quarter_width-6, LCD_HEIGHT-5, 13, 5);
 656     rb->lcd_set_drawmode(DRMODE_SOLID);
 657
 658     /* Show Left/Right */
 659     rb->lcd_putsxy(quarter_width-12, 12, "Left");
 660     rb->lcd_putsxy(half_width+quarter_width-12, 12, "Right");
 661
 662     /* Line above/below  the Left/Right text */
 663     rb->lcd_hline(0,LCD_WIDTH-1,9);
 664     rb->lcd_hline(0,LCD_WIDTH-1,21);
 665
 666     for(i=0; i<half_width; i++) {
 667         rb->lcd_drawpixel(i, (y_values[i])-2);
 668         rb->lcd_drawpixel(i+half_width, (y_values[i])-2);
 669     }
 670 }
 671
 672 void digital_meter(void) {
 673 #if (CONFIG_CODEC == MAS3587F) || (CONFIG_CODEC == MAS3539F)
 674     int left_peak = rb->mas_codec_readreg(0xC);
 675     int right_peak = rb->mas_codec_readreg(0xD);
 676 #elif (CONFIG_CODEC == SWCODEC)
 677     int left_peak, right_peak;
 678     rb->pcm_calculate_peaks(&left_peak, &right_peak);
 679 #endif
 680
 681     if(vumeter_settings.digital_use_db_scale) {
 682         num_left_leds = digital_db_scale[left_peak * 44 / MAX_PEAK];
 683         num_right_leds = digital_db_scale[right_peak * 44 / MAX_PEAK];
 684     }
 685     else {
 686         num_left_leds = left_peak * 11 / MAX_PEAK;
 687         num_right_leds = right_peak * 11 / MAX_PEAK;
 688     }
 689
 690     num_left_leds = (num_left_leds+last_num_left_leds*vumeter_settings.digital_decay)
 691                     /(vumeter_settings.digital_decay+1);
 692     num_right_leds = (num_right_leds+last_num_right_leds*vumeter_settings.digital_decay)
 693                      /(vumeter_settings.digital_decay+1);
 694
 695     last_num_left_leds = num_left_leds;
 696     last_num_right_leds = num_right_leds;
 697
 698     rb->lcd_set_drawmode(DRMODE_FG);
 699     /* LEDS */
 700     for(i=0; i<num_left_leds; i++) {
 701 #ifdef HAVE_LCD_COLOR
 702         rb->lcd_set_foreground(LCD_RGBPACK(255, 255 - 23 * i, 0));
 703 #endif
 704         rb->lcd_fillrect((digital_lead + (i*digital_block_width)),
 705             14, digital_block_width - digital_block_gap, digital_block_height);
 706     }
 707
 708     for(i=0; i<num_right_leds; i++) {
 709 #ifdef HAVE_LCD_COLOR
 710         rb->lcd_set_foreground(LCD_RGBPACK(255, 255 - 23 * i, 0));
 711 #endif
 712         rb->lcd_fillrect((digital_lead + (i*digital_block_width)),
 713             (half_height + 20), digital_block_width - digital_block_gap,
 714             digital_block_height);
 715     }
 716
 717 #ifdef HAVE_LCD_COLOR
 718     rb->lcd_set_foreground(screen_foreground);
 719 #endif
 720     rb->lcd_set_drawmode(DRMODE_SOLID);
 721
 722     if(vumeter_settings.digital_minimeters)
 723         draw_digital_minimeters();
 724
 725     /* Lines above/below where the LEDS are */
 726     rb->lcd_hline(0,LCD_WIDTH-1,12);
 727     rb->lcd_hline(0,LCD_WIDTH-1,half_height-12);
 728
 729     rb->lcd_hline(0,LCD_WIDTH-1,half_height+18);
 730     rb->lcd_hline(0,LCD_WIDTH-1,LCD_HEIGHT-6);
 731
 732     /* Show Left/Right */
 733     rb->lcd_putsxy(2, half_height-8, "Left");
 734     rb->lcd_putsxy(2, half_height+8, "Right");
 735
 736     /* Line in the middle */
 737     rb->lcd_hline(0,LCD_WIDTH-1,half_height+3);
 738 }
 739
 740 enum plugin_status plugin_start(const void* parameter) {
 741     int button;
 742     int lastbutton = BUTTON_NONE;
 743
 744     (void) parameter;
 745
 746     calc_scales();
 747
 748     load_settings();
 749     rb->lcd_setfont(FONT_SYSFIXED);
 750 #ifdef HAVE_LCD_COLOR
 751     screen_foreground = rb->lcd_get_foreground();
 752 #endif
 753
 754     while (1)
 755     {
 756         rb->lcd_clear_display();
 757
 758         rb->lcd_putsxy(half_width-23, 0, "VU Meter");
 759
 760         if(vumeter_settings.meter_type==ANALOG)
 761             analog_meter();
 762         else
 763             digital_meter();
 764
 765         rb->lcd_update();
 766
 767         button = rb->button_get_w_tmo(1);
 768         switch (button)
 769         {
 770 #ifdef VUMETER_RC_QUIT
 771             case VUMETER_RC_QUIT:
 772 #endif
 773             case VUMETER_QUIT:
 774                 save_settings();
 775                 return PLUGIN_OK;
 776                 break;
 777
 778             case VUMETER_HELP:
 779 #ifdef VUMETER_HELP_PRE
 780                 if (lastbutton != VUMETER_HELP_PRE)
 781                     break;
 782 #endif
 783                 rb->lcd_clear_display();
 784                 rb->lcd_puts(0, 0, LABEL_QUIT ": Exit");
 785                 rb->lcd_puts(0, 1, LABEL_MENU ": Settings");
 786                 rb->lcd_puts(0, 2, LABEL_VOLUME ": Volume");
 787                 rb->lcd_update();
 788                 rb->sleep(HZ*3);
 789                 break;
 790
 791             case VUMETER_MENU:
 792
 793 #ifdef VUMETER_MENU2
 794             case VUMETER_MENU2:
 795 #endif
 796
 797 #ifdef VUMETER_MENU_PRE
 798                 if (lastbutton != VUMETER_MENU_PRE)
 799                     break;
 800 #endif
 801                 if(vu_meter_menu())
 802                     return PLUGIN_OK;
 803                 break;
 804
 805             case VUMETER_UP:
 806             case VUMETER_UP | BUTTON_REPEAT:
 807                 change_volume(1);
 808                 break;
 809
 810             case VUMETER_DOWN:
 811             case VUMETER_DOWN | BUTTON_REPEAT:
 812                 change_volume(-1);
 813                 break;
 814
 815             default:
 816                 if(rb->default_event_handler(button) == SYS_USB_CONNECTED)
 817                     return PLUGIN_USB_CONNECTED;
 818                 break;
 819         }
 820         if (button != BUTTON_NONE)
 821             lastbutton = button;
 822     }
 823 }