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 #elif CONFIG_KEYPAD == MPIO_HD200_PAD
 287 #define VUMETER_QUIT (BUTTON_REC|BUTTON_PLAY)
 288 #define VUMETER_HELP BUTTON_PLAY
 289 #define VUMETER_MENU BUTTON_SELECT
 290 #define VUMETER_UP BUTTON_VOL_UP
 291 #define VUMETER_DOWN BUTTON_VOL_DOWN
 292 #define LABEL_HELP "PLAY"
 293 #define LABEL_QUIT "MENU"
 294 #define LABEL_MENU "SELECT"
 295 #define LABEL_VOLUME "UP/DOWN"
 296
 297 #else
 298 #error No keymap defined!
 299 #endif
 300
 301 #ifdef HAVE_TOUCHSCREEN
 302 #ifndef VUMETER_QUIT
 303 #define VUMETER_QUIT      BUTTON_TOPLEFT
 304 #define LABEL_QUIT        "TOPLEFT"
 305 #endif
 306 #ifndef VUMETER_HELP
 307 #define VUMETER_HELP      BUTTON_CENTER
 308 #define LABEL_HELP        "CENTRE"
 309 #endif
 310 #ifndef VUMETER_MENU
 311 #define VUMETER_MENU      BUTTON_TOPRIGHT
 312 #define LABEL_MENU        "TOPRIGHT"
 313 #endif
 314 #ifndef VUMETER_UP
 315 #define VUMETER_UP        BUTTON_TOPMIDDLE
 316 #endif
 317 #ifndef VUMETER_DOWN
 318 #define VUMETER_DOWN      BUTTON_BOTTOMMIDDLE
 319 #endif
 320 #ifndef LABEL_VOLUME
 321 #define LABEL_VOLUME      "UP/DOWN"
 322 #endif
 323 #endif
 324
 325 #if defined(SIMULATOR) && (CONFIG_CODEC != SWCODEC)
 326 #define mas_codec_readreg(x) rand()%MAX_PEAK
 327 #endif
 328
 329 /* Defines x positions on a logarithmic (dBfs) scale. */
 330 unsigned char analog_db_scale[LCD_WIDTH/2];
 331
 332 /* Define's y positions, to make the needle arch, like a real needle would. */
 333 unsigned char y_values[LCD_WIDTH/2];
 334
 335 const unsigned char digital_db_scale[] =
 336 {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,
 337 10,10,10,10,10,10,10,10,10,11,11,11,11,11,11,11,11};
 338
 339 const unsigned char needle_cover[] =
 340 {0x18, 0x1c, 0x1c, 0x1e, 0x1e, 0x1f, 0x1f, 0x1f, 0x1e, 0x1e, 0x1c, 0x1c, 0x18};
 341
 342 const unsigned char sound_speaker[] = {0x18,0x24,0x42,0xFF};
 343 const unsigned char sound_low_level[] = {0x24,0x18};
 344 const unsigned char sound_med_level[] = {0x42,0x3C};
 345 const unsigned char sound_high_level[] = {0x81,0x7E};
 346 const unsigned char sound_max_level[] = {0x0E,0xDF,0x0E};
 347
 348 const int half_width = LCD_WIDTH / 2;
 349 const int quarter_width = LCD_WIDTH / 4;
 350 const int half_height = LCD_HEIGHT / 2;
 351
 352 /* approx ratio of the previous hard coded values */
 353 const int analog_mini_1 = (LCD_WIDTH / 2)*0.1;
 354 const int analog_mini_2 = (LCD_WIDTH / 2)*0.25;
 355 const int analog_mini_3 = (LCD_WIDTH / 2)*0.4;
 356 const int analog_mini_4 = (LCD_WIDTH / 2)*0.75;
 357
 358 const int digital_block_width = LCD_WIDTH / 11;
 359 const int digital_block_gap = (int)(LCD_WIDTH / 11) / 10;
 360 /* ammount to lead in on left so 11x blocks are centered - is often 0 */
 361 const int digital_lead = (LCD_WIDTH - (((int)(LCD_WIDTH / 11))*11) ) / 2;
 362
 363 const int digital_block_height = (LCD_HEIGHT - 54) / 2 ;
 364
 365 #define ANALOG 0 /* The two meter types */
 366 #define DIGITAL 1
 367
 368 int left_needle_top_y;
 369 int left_needle_top_x;
 370 int last_left_needle_top_x;
 371 int right_needle_top_y;
 372 int right_needle_top_x;
 373 int last_right_needle_top_x = LCD_WIDTH / 2;
 374
 375 int num_left_leds;
 376 int num_right_leds;
 377 int last_num_left_leds;
 378 int last_num_right_leds;
 379
 380 int i;
 381 #ifdef HAVE_LCD_COLOR
 382 int screen_foreground;
 383 #endif
 384
 385 #define MAX_PEAK 0x8000
 386
 387 /* gap at the top for left/right etc */
 388 #define NEEDLE_TOP 25
 389
 390 /* pow(M_E, 5) * 65536 */
 391 #define E_POW_5 9726404
 392
 393 struct saved_settings {
 394     int meter_type;
 395     bool analog_use_db_scale;
 396     bool digital_use_db_scale;
 397     bool analog_minimeters;
 398     bool digital_minimeters;
 399     int analog_decay;
 400     int digital_decay;
 401 } vumeter_settings;
 402
 403 void reset_settings(void) {
 404     vumeter_settings.meter_type=ANALOG;
 405     vumeter_settings.analog_use_db_scale=true;
 406     vumeter_settings.digital_use_db_scale=true;
 407     vumeter_settings.analog_minimeters=true;
 408     vumeter_settings.digital_minimeters=false;
 409     vumeter_settings.analog_decay=3;
 410     vumeter_settings.digital_decay=0;
 411 }
 412
 413 void calc_scales(void)
 414 {
 415     unsigned int fx_log_factor = E_POW_5/half_width;
 416     unsigned int y,z;
 417
 418     long j;
 419     long k;
 420     int nh = LCD_HEIGHT - NEEDLE_TOP;
 421     long nh2 = nh*nh;
 422
 423     for (i=1; i <= half_width; i++)
 424     {
 425         /* analog scale */
 426         y = (half_width/5)*fp16_log(i*fx_log_factor);
 427
 428         /* better way of checking for negative values? */
 429         z = y>>16;
 430         if (z > LCD_WIDTH)
 431             z = 0;
 432
 433         analog_db_scale[i-1] = z;
 434         /* play nice */
 435         rb->yield();
 436
 437         /* y values (analog needle co-ords) */
 438         j = i - (int)(half_width/2);
 439         k = nh2 - ( j * j );
 440
 441         /* fsqrt+1 seems to give a closer approximation */
 442         y_values[i-1] = LCD_HEIGHT - (fp_sqrt(k, 16)>>8) - 1;
 443         rb->yield();
 444     }
 445 }
 446
 447 void load_settings(void) {
 448     int fp = rb->open(PLUGIN_DEMOS_DIR "/.vu_meter", O_RDONLY);
 449     if(fp>=0) {
 450             rb->read(fp, &vumeter_settings, sizeof(struct saved_settings));
 451             rb->close(fp);
 452     }
 453     else {
 454         reset_settings();
 455         rb->splash(HZ, "Press " LABEL_HELP " for help");
 456     }
 457 }
 458
 459 void save_settings(void) {
 460     int fp = rb->creat(PLUGIN_DEMOS_DIR "/.vu_meter", 0666);
 461     if(fp >= 0) {
 462         rb->write (fp, &vumeter_settings, sizeof(struct saved_settings));
 463         rb->close(fp);
 464     }
 465 }
 466
 467 void change_volume(int delta) {
 468     char curr_vol[5];
 469     int minvol = rb->sound_min(SOUND_VOLUME);
 470     int maxvol = rb->sound_max(SOUND_VOLUME);
 471     int vol = rb->global_settings->volume + delta;
 472
 473     if (vol > maxvol) vol = maxvol;
 474     else if (vol < minvol) vol = minvol;
 475     if (vol != rb->global_settings->volume) {
 476         rb->sound_set(SOUND_VOLUME, vol);
 477         rb->global_settings->volume = vol;
 478         rb->snprintf(curr_vol, sizeof(curr_vol), "%d", vol);
 479         rb->lcd_putsxy(0,0, curr_vol);
 480         rb->lcd_update();
 481         rb->sleep(HZ/12);
 482     }
 483 }
 484
 485 static bool vu_meter_menu(void)
 486 {
 487     int selection;
 488     bool menu_quit = false;
 489     bool exit = false;
 490
 491     MENUITEM_STRINGLIST(menu,"VU Meter Menu",NULL,"Meter Type","Scale",
 492                         "Minimeters","Decay Speed","Playback Control",
 493                         "Quit");
 494
 495     static const struct opt_items meter_type_option[2] = {
 496         { "Analog", -1 },
 497         { "Digital", -1 },
 498     };
 499
 500     static const struct opt_items decay_speed_option[7] = {
 501         { "No Decay", -1 },
 502         { "Very Fast", -1 },
 503         { "Fast", -1 },
 504         { "Medium", -1 },
 505         { "Medium-Slow", -1 },
 506         { "Slow", -1 },
 507         { "Very Slow", -1 },
 508     };
 509
 510     while (!menu_quit) {
 511         switch(rb->do_menu(&menu, &selection, NULL, false))
 512         {
 513             case 0:
 514                 rb->set_option("Meter Type", &vumeter_settings.meter_type, INT,
 515                                meter_type_option, 2, NULL);
 516                 break;
 517
 518             case 1:
 519                 if(vumeter_settings.meter_type==ANALOG)
 520                 {
 521                     rb->set_bool_options("Scale", &vumeter_settings.analog_use_db_scale,
 522                                          "dBfs", -1, "Linear", -1, NULL);
 523                 }
 524                 else
 525                 {
 526                     rb->set_bool_options("Scale", &vumeter_settings.digital_use_db_scale,
 527                                          "dBfs", -1, "Linear", -1, NULL);
 528                 }
 529                 break;
 530
 531             case 2:
 532                 if(vumeter_settings.meter_type==ANALOG)
 533                 {
 534                     rb->set_bool("Enable Minimeters",
 535                                  &vumeter_settings.analog_minimeters);
 536                 }
 537                 else
 538                 {
 539                     rb->set_bool("Enable Minimeters",
 540                                  &vumeter_settings.digital_minimeters);
 541                 }
 542                 break;
 543
 544             case 3:
 545                 if(vumeter_settings.meter_type==ANALOG)
 546                 {
 547                     rb->set_option("Decay Speed", &vumeter_settings.analog_decay, INT,
 548                                decay_speed_option, 7, NULL);
 549                 }
 550                 else
 551                 {
 552                     rb->set_option("Decay Speed", &vumeter_settings.digital_decay, INT,
 553                                decay_speed_option, 7, NULL);
 554                 }
 555                 break;
 556
 557             case 4:
 558                 playback_control(NULL);
 559                 break;
 560
 561             case 5:
 562                 exit = true;
 563                 /* fall through to exit the menu */
 564             default:
 565                 menu_quit = true;
 566                 break;
 567         }
 568     }
 569     /* the menu uses the userfont, set it back to sysfont */
 570     rb->lcd_setfont(FONT_SYSFIXED);
 571     return exit;
 572 }
 573
 574 void draw_analog_minimeters(void) {
 575     rb->lcd_mono_bitmap(sound_speaker, quarter_width-28, 12, 4, 8);
 576     rb->lcd_set_drawmode(DRMODE_FG);
 577     if(analog_mini_1<left_needle_top_x)
 578         rb->lcd_mono_bitmap(sound_low_level, quarter_width-23, 12, 2, 8);
 579     if(analog_mini_2<left_needle_top_x)
 580         rb->lcd_mono_bitmap(sound_med_level, quarter_width-21, 12, 2, 8);
 581     if(analog_mini_3<left_needle_top_x)
 582         rb->lcd_mono_bitmap(sound_high_level, quarter_width-19, 12, 2, 8);
 583     if(analog_mini_4<left_needle_top_x)
 584         rb->lcd_mono_bitmap(sound_max_level, quarter_width-16, 12, 3, 8);
 585
 586     rb->lcd_set_drawmode(DRMODE_SOLID);
 587     rb->lcd_mono_bitmap(sound_speaker, quarter_width+half_width-30, 12, 4, 8);
 588     rb->lcd_set_drawmode(DRMODE_FG);
 589     if(analog_mini_1<(right_needle_top_x-half_width))
 590         rb->lcd_mono_bitmap(sound_low_level, quarter_width+half_width-25, 12, 2, 8);
 591     if(analog_mini_2<(right_needle_top_x-half_width))
 592         rb->lcd_mono_bitmap(sound_med_level, quarter_width+half_width-23, 12, 2, 8);
 593     if(analog_mini_3<(right_needle_top_x-half_width))
 594         rb->lcd_mono_bitmap(sound_high_level, quarter_width+half_width-21, 12, 2, 8);
 595     if(analog_mini_4<(right_needle_top_x-half_width))
 596         rb->lcd_mono_bitmap(sound_max_level, quarter_width+half_width-18, 12, 3, 8);
 597     rb->lcd_set_drawmode(DRMODE_SOLID);
 598 }
 599
 600 void draw_digital_minimeters(void) {
 601 #ifdef HAVE_LCD_COLOR
 602     rb->lcd_set_foreground(LCD_RGBPACK(255, 255 - 23 * num_left_leds, 0));
 603 #endif
 604     rb->lcd_mono_bitmap(sound_speaker, 34, half_height-8, 4, 8);
 605     rb->lcd_set_drawmode(DRMODE_FG);
 606     if(1<num_left_leds)
 607         rb->lcd_mono_bitmap(sound_low_level, 39, half_height-8, 2, 8);
 608     if(2<num_left_leds)
 609         rb->lcd_mono_bitmap(sound_med_level, 41, half_height-8, 2, 8);
 610     if(5<num_left_leds)
 611         rb->lcd_mono_bitmap(sound_high_level, 43, half_height-8, 2, 8);
 612     if(8<num_left_leds)
 613         rb->lcd_mono_bitmap(sound_max_level, 46, half_height-8, 3, 8);
 614
 615 #ifdef HAVE_LCD_COLOR
 616     rb->lcd_set_foreground(LCD_RGBPACK(255, 255 - 23 * num_right_leds, 0));
 617 #endif
 618     rb->lcd_set_drawmode(DRMODE_SOLID);
 619     rb->lcd_mono_bitmap(sound_speaker, 34, half_height+8, 4, 8);
 620     rb->lcd_set_drawmode(DRMODE_FG);
 621     if(1<(num_right_leds))
 622         rb->lcd_mono_bitmap(sound_low_level, 39, half_height+8, 2, 8);
 623     if(2<(num_right_leds))
 624         rb->lcd_mono_bitmap(sound_med_level, 41, half_height+8, 2, 8);
 625     if(5<(num_right_leds))
 626         rb->lcd_mono_bitmap(sound_high_level, 43, half_height+8, 2, 8);
 627     if(8<(num_right_leds))
 628         rb->lcd_mono_bitmap(sound_max_level, 46, half_height+8, 3, 8);
 629     rb->lcd_set_drawmode(DRMODE_SOLID);
 630
 631 #ifdef HAVE_LCD_COLOR
 632     rb->lcd_set_foreground(screen_foreground);
 633 #endif
 634 }
 635
 636 void analog_meter(void) {
 637
 638 #if (CONFIG_CODEC == MAS3587F) || (CONFIG_CODEC == MAS3539F)
 639     int left_peak = rb->mas_codec_readreg(0xC);
 640     int right_peak = rb->mas_codec_readreg(0xD);
 641 #elif (CONFIG_CODEC == SWCODEC)
 642     int left_peak, right_peak;
 643     rb->pcm_calculate_peaks(&left_peak, &right_peak);
 644 #endif
 645
 646     if(vumeter_settings.analog_use_db_scale) {
 647         left_needle_top_x = analog_db_scale[left_peak * half_width / MAX_PEAK];
 648         right_needle_top_x = analog_db_scale[right_peak * half_width / MAX_PEAK] + half_width;
 649     }
 650     else {
 651         left_needle_top_x = left_peak * half_width / MAX_PEAK;
 652         right_needle_top_x = right_peak * half_width / MAX_PEAK + half_width;
 653     }
 654
 655     /* Makes a decay on the needle */
 656     left_needle_top_x = (left_needle_top_x+last_left_needle_top_x*vumeter_settings.analog_decay)
 657                         /(vumeter_settings.analog_decay+1);
 658     right_needle_top_x = (right_needle_top_x+last_right_needle_top_x*vumeter_settings.analog_decay)
 659                          /(vumeter_settings.analog_decay+1);
 660
 661     last_left_needle_top_x = left_needle_top_x;
 662     last_right_needle_top_x = right_needle_top_x;
 663
 664     left_needle_top_y = y_values[left_needle_top_x];
 665     right_needle_top_y = y_values[right_needle_top_x-half_width];
 666
 667     /* Needles */
 668     rb->lcd_drawline(quarter_width, LCD_HEIGHT-1, left_needle_top_x, left_needle_top_y);
 669     rb->lcd_drawline((quarter_width+half_width), LCD_HEIGHT-1, right_needle_top_x, right_needle_top_y);
 670
 671     if(vumeter_settings.analog_minimeters)
 672         draw_analog_minimeters();
 673
 674     /* Needle covers */
 675     rb->lcd_set_drawmode(DRMODE_FG);
 676     rb->lcd_mono_bitmap(needle_cover, quarter_width-6, LCD_HEIGHT-5, 13, 5);
 677     rb->lcd_mono_bitmap(needle_cover, half_width+quarter_width-6, LCD_HEIGHT-5, 13, 5);
 678     rb->lcd_set_drawmode(DRMODE_SOLID);
 679
 680     /* Show Left/Right */
 681     rb->lcd_putsxy(quarter_width-12, 12, "Left");
 682     rb->lcd_putsxy(half_width+quarter_width-12, 12, "Right");
 683
 684     /* Line above/below  the Left/Right text */
 685     rb->lcd_hline(0,LCD_WIDTH-1,9);
 686     rb->lcd_hline(0,LCD_WIDTH-1,21);
 687
 688     for(i=0; i<half_width; i++) {
 689         rb->lcd_drawpixel(i, (y_values[i])-2);
 690         rb->lcd_drawpixel(i+half_width, (y_values[i])-2);
 691     }
 692 }
 693
 694 void digital_meter(void) {
 695 #if (CONFIG_CODEC == MAS3587F) || (CONFIG_CODEC == MAS3539F)
 696     int left_peak = rb->mas_codec_readreg(0xC);
 697     int right_peak = rb->mas_codec_readreg(0xD);
 698 #elif (CONFIG_CODEC == SWCODEC)
 699     int left_peak, right_peak;
 700     rb->pcm_calculate_peaks(&left_peak, &right_peak);
 701 #endif
 702
 703     if(vumeter_settings.digital_use_db_scale) {
 704         num_left_leds = digital_db_scale[left_peak * 44 / MAX_PEAK];
 705         num_right_leds = digital_db_scale[right_peak * 44 / MAX_PEAK];
 706     }
 707     else {
 708         num_left_leds = left_peak * 11 / MAX_PEAK;
 709         num_right_leds = right_peak * 11 / MAX_PEAK;
 710     }
 711
 712     num_left_leds = (num_left_leds+last_num_left_leds*vumeter_settings.digital_decay)
 713                     /(vumeter_settings.digital_decay+1);
 714     num_right_leds = (num_right_leds+last_num_right_leds*vumeter_settings.digital_decay)
 715                      /(vumeter_settings.digital_decay+1);
 716
 717     last_num_left_leds = num_left_leds;
 718     last_num_right_leds = num_right_leds;
 719
 720     rb->lcd_set_drawmode(DRMODE_FG);
 721     /* LEDS */
 722     for(i=0; i<num_left_leds; i++) {
 723 #ifdef HAVE_LCD_COLOR
 724         rb->lcd_set_foreground(LCD_RGBPACK(255, 255 - 23 * i, 0));
 725 #endif
 726         rb->lcd_fillrect((digital_lead + (i*digital_block_width)),
 727             14, digital_block_width - digital_block_gap, digital_block_height);
 728     }
 729
 730     for(i=0; i<num_right_leds; i++) {
 731 #ifdef HAVE_LCD_COLOR
 732         rb->lcd_set_foreground(LCD_RGBPACK(255, 255 - 23 * i, 0));
 733 #endif
 734         rb->lcd_fillrect((digital_lead + (i*digital_block_width)),
 735             (half_height + 20), digital_block_width - digital_block_gap,
 736             digital_block_height);
 737     }
 738
 739 #ifdef HAVE_LCD_COLOR
 740     rb->lcd_set_foreground(screen_foreground);
 741 #endif
 742     rb->lcd_set_drawmode(DRMODE_SOLID);
 743
 744     if(vumeter_settings.digital_minimeters)
 745         draw_digital_minimeters();
 746
 747     /* Lines above/below where the LEDS are */
 748     rb->lcd_hline(0,LCD_WIDTH-1,12);
 749     rb->lcd_hline(0,LCD_WIDTH-1,half_height-12);
 750
 751     rb->lcd_hline(0,LCD_WIDTH-1,half_height+18);
 752     rb->lcd_hline(0,LCD_WIDTH-1,LCD_HEIGHT-6);
 753
 754     /* Show Left/Right */
 755     rb->lcd_putsxy(2, half_height-8, "Left");
 756     rb->lcd_putsxy(2, half_height+8, "Right");
 757
 758     /* Line in the middle */
 759     rb->lcd_hline(0,LCD_WIDTH-1,half_height+3);
 760 }
 761
 762 enum plugin_status plugin_start(const void* parameter) {
 763     int button;
 764     int lastbutton = BUTTON_NONE;
 765
 766     (void) parameter;
 767
 768     calc_scales();
 769
 770     load_settings();
 771     rb->lcd_setfont(FONT_SYSFIXED);
 772 #ifdef HAVE_LCD_COLOR
 773     screen_foreground = rb->lcd_get_foreground();
 774 #endif
 775
 776     while (1)
 777     {
 778         rb->lcd_clear_display();
 779
 780         rb->lcd_putsxy(half_width-23, 0, "VU Meter");
 781
 782         if(vumeter_settings.meter_type==ANALOG)
 783             analog_meter();
 784         else
 785             digital_meter();
 786
 787         rb->lcd_update();
 788
 789         button = rb->button_get_w_tmo(1);
 790         switch (button)
 791         {
 792 #ifdef VUMETER_RC_QUIT
 793             case VUMETER_RC_QUIT:
 794 #endif
 795             case VUMETER_QUIT:
 796                 save_settings();
 797                 return PLUGIN_OK;
 798                 break;
 799
 800             case VUMETER_HELP:
 801 #ifdef VUMETER_HELP_PRE
 802                 if (lastbutton != VUMETER_HELP_PRE)
 803                     break;
 804 #endif
 805                 rb->lcd_clear_display();
 806                 rb->lcd_puts(0, 0, LABEL_QUIT ": Exit");
 807                 rb->lcd_puts(0, 1, LABEL_MENU ": Settings");
 808                 rb->lcd_puts(0, 2, LABEL_VOLUME ": Volume");
 809                 rb->lcd_update();
 810                 rb->sleep(HZ*3);
 811                 break;
 812
 813             case VUMETER_MENU:
 814
 815 #ifdef VUMETER_MENU2
 816             case VUMETER_MENU2:
 817 #endif
 818
 819 #ifdef VUMETER_MENU_PRE
 820                 if (lastbutton != VUMETER_MENU_PRE)
 821                     break;
 822 #endif
 823                 if(vu_meter_menu())
 824                     return PLUGIN_OK;
 825                 break;
 826
 827             case VUMETER_UP:
 828             case VUMETER_UP | BUTTON_REPEAT:
 829                 change_volume(1);
 830                 break;
 831
 832             case VUMETER_DOWN:
 833             case VUMETER_DOWN | BUTTON_REPEAT:
 834                 change_volume(-1);
 835                 break;
 836
 837             default:
 838                 if(rb->default_event_handler(button) == SYS_USB_CONNECTED)
 839                     return PLUGIN_USB_CONNECTED;
 840                 break;
 841         }
 842         if (button != BUTTON_NONE)
 843             lastbutton = button;
 844     }
 845 }