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_MENU_EXIT BUTTON_F1
  32 #define VUMETER_MENU_EXIT2 BUTTON_OFF
  33 #define VUMETER_UP BUTTON_UP
  34 #define VUMETER_DOWN BUTTON_DOWN
  35 #define LABEL_HELP "ON"
  36 #define LABEL_QUIT "OFF"
  37 #define LABEL_MENU "F1"
  38 #define LABEL_VOLUME "UP/DOWN"
  39
  40 #elif CONFIG_KEYPAD == ARCHOS_AV300_PAD
  41 #define VUMETER_QUIT BUTTON_OFF
  42 #define VUMETER_HELP BUTTON_ON
  43 #define VUMETER_MENU BUTTON_F1
  44 #define VUMETER_MENU_EXIT BUTTON_F1
  45 #define VUMETER_MENU_EXIT2 BUTTON_OFF
  46 #define VUMETER_UP BUTTON_UP
  47 #define VUMETER_DOWN BUTTON_DOWN
  48 #define LABEL_HELP "ON"
  49 #define LABEL_QUIT "OFF"
  50 #define LABEL_MENU "F1"
  51 #define LABEL_VOLUME "UP/DOWN"
  52
  53 #elif CONFIG_KEYPAD == ONDIO_PAD
  54 #define VUMETER_QUIT BUTTON_OFF
  55 #define VUMETER_HELP_PRE BUTTON_MENU
  56 #define VUMETER_HELP (BUTTON_MENU | BUTTON_REL)
  57 #define VUMETER_MENU_PRE BUTTON_MENU
  58 #define VUMETER_MENU (BUTTON_MENU | BUTTON_REPEAT)
  59 #define VUMETER_MENU_EXIT BUTTON_MENU
  60 #define VUMETER_MENU_EXIT2 BUTTON_OFF
  61 #define VUMETER_UP BUTTON_UP
  62 #define VUMETER_DOWN BUTTON_DOWN
  63 #define LABEL_HELP "MODE"
  64 #define LABEL_QUIT "OFF"
  65 #define LABEL_MENU "MODE.."
  66 #define LABEL_VOLUME "UP/DOWN"
  67
  68 #elif (CONFIG_KEYPAD == IRIVER_H100_PAD) || \
  69       (CONFIG_KEYPAD == IRIVER_H300_PAD)
  70 #define VUMETER_QUIT BUTTON_OFF
  71 #define VUMETER_HELP BUTTON_ON
  72 #define VUMETER_MENU BUTTON_SELECT
  73 #define VUMETER_MENU2 BUTTON_MODE
  74 #define VUMETER_MENU_EXIT BUTTON_SELECT
  75 #define VUMETER_MENU_EXIT2 BUTTON_OFF
  76 #define VUMETER_UP BUTTON_UP
  77 #define VUMETER_DOWN BUTTON_DOWN
  78 #define LABEL_HELP "PLAY"
  79 #define LABEL_QUIT "STOP"
  80 #define LABEL_MENU "SELECT,MODE"
  81 #define LABEL_VOLUME "UP/DOWN"
  82
  83 #define VUMETER_RC_QUIT BUTTON_RC_STOP
  84
  85 #elif (CONFIG_KEYPAD == IPOD_4G_PAD) || \
  86       (CONFIG_KEYPAD == IPOD_3G_PAD) || \
  87       (CONFIG_KEYPAD == IPOD_1G2G_PAD)
  88 #define VUMETER_QUIT BUTTON_MENU
  89 #define VUMETER_HELP BUTTON_PLAY
  90 #define VUMETER_MENU BUTTON_SELECT
  91 #define VUMETER_MENU_EXIT BUTTON_SELECT
  92 #define VUMETER_MENU_EXIT2 BUTTON_MENU
  93 #define VUMETER_UP BUTTON_SCROLL_FWD
  94 #define VUMETER_DOWN BUTTON_SCROLL_BACK
  95 #define LABEL_HELP "PLAY"
  96 #define LABEL_QUIT "MENU"
  97 #define LABEL_MENU "SELECT"
  98 #define LABEL_VOLUME "Wheel"
  99
 100 #elif (CONFIG_KEYPAD == GIGABEAT_PAD)
 101 #define VUMETER_QUIT BUTTON_POWER
 102 #define VUMETER_HELP BUTTON_A
 103 #define VUMETER_MENU BUTTON_MENU
 104 #define VUMETER_MENU_EXIT BUTTON_MENU
 105 #define VUMETER_MENU_EXIT2 BUTTON_POWER
 106 #define VUMETER_UP BUTTON_UP
 107 #define VUMETER_DOWN BUTTON_DOWN
 108 #define LABEL_HELP "A"
 109 #define LABEL_QUIT "POWER"
 110 #define LABEL_MENU "MENU"
 111 #define LABEL_VOLUME "UP/DOWN"
 112
 113 #elif (CONFIG_KEYPAD == SANSA_E200_PAD)
 114 #define VUMETER_QUIT BUTTON_POWER
 115 #define VUMETER_HELP BUTTON_REC
 116 #define VUMETER_MENU BUTTON_SELECT
 117 #define VUMETER_MENU_EXIT BUTTON_SELECT
 118 #define VUMETER_MENU_EXIT2 BUTTON_POWER
 119 #define VUMETER_UP BUTTON_SCROLL_FWD
 120 #define VUMETER_DOWN BUTTON_SCROLL_BACK
 121 #define LABEL_HELP "REC"
 122 #define LABEL_QUIT "POWER"
 123 #define LABEL_MENU "SELECT"
 124 #define LABEL_VOLUME "Wheel"
 125
 126 #elif (CONFIG_KEYPAD == SANSA_FUZE_PAD)
 127 #define VUMETER_QUIT        (BUTTON_HOME|BUTTON_REPEAT)
 128 #define VUMETER_HELP        BUTTON_SELECT|BUTTON_REPEAT
 129 #define VUMETER_MENU        BUTTON_SELECT|BUTTON_REL
 130 #define VUMETER_MENU_EXIT   BUTTON_SELECT
 131 #define VUMETER_MENU_EXIT2  BUTTON_DOWN
 132 #define VUMETER_UP          BUTTON_SCROLL_FWD
 133 #define VUMETER_DOWN        BUTTON_SCROLL_BACK
 134 #define LABEL_HELP          "Hold Select"
 135 #define LABEL_QUIT          "HOME"
 136 #define LABEL_MENU          "Select"
 137 #define LABEL_VOLUME        "Scrollwheel"
 138
 139 #elif (CONFIG_KEYPAD == SANSA_C200_PAD)
 140 #define VUMETER_QUIT BUTTON_POWER
 141 #define VUMETER_HELP BUTTON_REC
 142 #define VUMETER_MENU BUTTON_SELECT
 143 #define VUMETER_MENU_EXIT BUTTON_SELECT
 144 #define VUMETER_MENU_EXIT2 BUTTON_POWER
 145 #define VUMETER_UP BUTTON_VOL_UP
 146 #define VUMETER_DOWN BUTTON_VOL_DOWN
 147 #define LABEL_HELP "REC"
 148 #define LABEL_QUIT "POWER"
 149 #define LABEL_MENU "SELECT"
 150 #define LABEL_VOLUME "VOL UP/DN"
 151
 152 #elif (CONFIG_KEYPAD == SANSA_CLIP_PAD)
 153 #define VUMETER_QUIT BUTTON_POWER
 154 #define VUMETER_HELP BUTTON_HOME
 155 #define VUMETER_MENU BUTTON_SELECT
 156 #define VUMETER_MENU_EXIT BUTTON_SELECT
 157 #define VUMETER_MENU_EXIT2 BUTTON_POWER
 158 #define VUMETER_UP BUTTON_VOL_UP
 159 #define VUMETER_DOWN BUTTON_VOL_DOWN
 160 #define LABEL_HELP "HOME"
 161 #define LABEL_QUIT "POWER"
 162 #define LABEL_MENU "SELECT"
 163 #define LABEL_VOLUME "VOL UP/DN"
 164
 165 #elif (CONFIG_KEYPAD == SANSA_M200_PAD)
 166 #define VUMETER_QUIT BUTTON_POWER
 167 #define VUMETER_HELP (BUTTON_SELECT | BUTTON_UP)
 168 #define VUMETER_MENU (BUTTON_SELECT | BUTTON_REL)
 169 #define VUMETER_MENU_EXIT (BUTTON_SELECT | BUTTON_REL)
 170 #define VUMETER_MENU_EXIT2 BUTTON_POWER
 171 #define VUMETER_UP BUTTON_VOL_UP
 172 #define VUMETER_DOWN BUTTON_VOL_DOWN
 173 #define LABEL_HELP "SELECT + UP"
 174 #define LABEL_QUIT "POWER"
 175 #define LABEL_MENU "SELECT"
 176 #define LABEL_VOLUME "VOL UP/DN"
 177
 178 #elif CONFIG_KEYPAD == IAUDIO_X5M5_PAD
 179 #define VUMETER_QUIT BUTTON_POWER
 180 #define VUMETER_HELP BUTTON_PLAY
 181 #define VUMETER_MENU BUTTON_SELECT
 182 #define VUMETER_MENU_EXIT BUTTON_SELECT
 183 #define VUMETER_MENU_EXIT2 BUTTON_POWER
 184 #define VUMETER_UP BUTTON_UP
 185 #define VUMETER_DOWN BUTTON_DOWN
 186 #define LABEL_HELP "PLAY"
 187 #define LABEL_QUIT "POWER"
 188 #define LABEL_MENU "SELECT"
 189 #define LABEL_VOLUME "UP/DOWN"
 190
 191 #elif CONFIG_KEYPAD == IRIVER_H10_PAD
 192 #define VUMETER_QUIT BUTTON_POWER
 193 #define VUMETER_HELP BUTTON_PLAY
 194 #define VUMETER_MENU BUTTON_REW
 195 #define VUMETER_MENU_EXIT BUTTON_REW
 196 #define VUMETER_MENU_EXIT2 BUTTON_POWER
 197 #define VUMETER_UP BUTTON_SCROLL_UP
 198 #define VUMETER_DOWN BUTTON_SCROLL_DOWN
 199 #define LABEL_HELP "PLAY"
 200 #define LABEL_QUIT "POWER"
 201 #define LABEL_MENU "REW"
 202 #define LABEL_VOLUME "Scroller"
 203
 204 #elif (CONFIG_KEYPAD == GIGABEAT_S_PAD)
 205 #define VUMETER_QUIT BUTTON_BACK
 206 #define VUMETER_HELP BUTTON_NEXT
 207 #define VUMETER_MENU BUTTON_MENU
 208 #define VUMETER_MENU_EXIT BUTTON_MENU
 209 #define VUMETER_MENU_EXIT2 BUTTON_PLAY
 210 #define VUMETER_UP BUTTON_UP
 211 #define VUMETER_DOWN BUTTON_DOWN
 212 #define LABEL_HELP "NEXT"
 213 #define LABEL_QUIT "BACK"
 214 #define LABEL_MENU "MENU"
 215 #define LABEL_VOLUME "UP/DOWN"
 216
 217 #elif (CONFIG_KEYPAD == MROBE100_PAD)
 218 #define VUMETER_QUIT BUTTON_POWER
 219 #define VUMETER_HELP BUTTON_DISPLAY
 220 #define VUMETER_MENU BUTTON_MENU
 221 #define VUMETER_MENU_EXIT BUTTON_MENU
 222 #define VUMETER_MENU_EXIT2 BUTTON_POWER
 223 #define VUMETER_UP BUTTON_UP
 224 #define VUMETER_DOWN BUTTON_DOWN
 225 #define LABEL_HELP "DISPLAY"
 226 #define LABEL_QUIT "POWER"
 227 #define LABEL_MENU "MENU"
 228 #define LABEL_VOLUME "UP/DOWN"
 229
 230 #elif CONFIG_KEYPAD == IAUDIO_M3_PAD
 231 #define VUMETER_QUIT BUTTON_RC_REC
 232 #define VUMETER_HELP BUTTON_RC_MODE
 233 #define VUMETER_MENU BUTTON_RC_MENU
 234 #define VUMETER_MENU_EXIT BUTTON_RC_MENU
 235 #define VUMETER_MENU_EXIT2 BUTTON_RC_REC
 236 #define VUMETER_UP BUTTON_RC_VOL_UP
 237 #define VUMETER_DOWN BUTTON_RC_VOL_DOWN
 238 #define LABEL_HELP "MODE"
 239 #define LABEL_QUIT "REC"
 240 #define LABEL_MENU "MENU"
 241 #define LABEL_VOLUME "VOL UP/DN"
 242
 243 #elif CONFIG_KEYPAD == COWOND2_PAD
 244 #define VUMETER_QUIT BUTTON_POWER
 245 #define VUMETER_MENU BUTTON_MENU
 246 #define VUMETER_MENU_EXIT BUTTON_POWER
 247 #define LABEL_QUIT "POWER"
 248 #define LABEL_MENU "MENU"
 249
 250 #elif CONFIG_KEYPAD == CREATIVEZVM_PAD
 251 #define VUMETER_QUIT BUTTON_BACK
 252 #define VUMETER_HELP BUTTON_SELECT
 253 #define VUMETER_MENU BUTTON_MENU
 254 #define VUMETER_MENU_EXIT BUTTON_MENU
 255 #define VUMETER_UP BUTTON_UP
 256 #define VUMETER_DOWN BUTTON_DOWN
 257 #define LABEL_HELP "MIDDLE"
 258 #define LABEL_QUIT "BACK"
 259 #define LABEL_MENU "MENU"
 260 #define LABEL_VOLUME "UP/DOWN"
 261
 262 #elif CONFIG_KEYPAD == PHILIPS_HDD1630_PAD
 263 #define VUMETER_QUIT BUTTON_POWER
 264 #define VUMETER_HELP BUTTON_VIEW
 265 #define VUMETER_MENU BUTTON_MENU
 266 #define VUMETER_MENU_EXIT BUTTON_MENU
 267 #define VUMETER_MENU_EXIT2 BUTTON_POWER
 268 #define VUMETER_UP BUTTON_UP
 269 #define VUMETER_DOWN BUTTON_DOWN
 270 #define LABEL_HELP "VIEW"
 271 #define LABEL_QUIT "POWER"
 272 #define LABEL_MENU "MENU"
 273 #define LABEL_VOLUME "UP/DOWN"
 274
 275 #elif CONFIG_KEYPAD == ONDAVX747_PAD
 276 #define VUMETER_QUIT BUTTON_POWER
 277 #define VUMETER_MENU BUTTON_MENU
 278 #define VUMETER_MENU_EXIT BUTTON_POWER
 279 #define LABEL_QUIT "POWER"
 280 #define LABEL_MENU "MENU"
 281
 282 #else
 283 #error No keymap defined!
 284 #endif
 285
 286 #ifdef HAVE_TOUCHSCREEN
 287 #ifndef VUMETER_QUIT
 288 #define VUMETER_QUIT      BUTTON_TOPLEFT
 289 #define LABEL_QUIT        "TOPLEFT"
 290 #endif
 291 #ifndef VUMETER_HELP
 292 #define VUMETER_HELP      BUTTON_CENTER
 293 #define LABEL_HELP        "CENTRE"
 294 #endif
 295 #ifndef VUMETER_MENU
 296 #define VUMETER_MENU      BUTTON_TOPRIGHT
 297 #define LABEL_MENU        "TOPRIGHT"
 298 #endif
 299 #ifndef VUMETER_MENU_EXIT
 300 #define VUMETER_MENU_EXIT BUTTON_TOPLEFT
 301 #endif
 302 #ifndef VUMETER_UP
 303 #define VUMETER_UP        BUTTON_TOPMIDDLE
 304 #endif
 305 #ifndef VUMETER_DOWN
 306 #define VUMETER_DOWN      BUTTON_BOTTOMMIDDLE
 307 #endif
 308 #ifndef LABEL_VOLUME
 309 #define LABEL_VOLUME      "UP/DOWN"
 310 #endif
 311 #endif
 312
 313 #if defined(SIMULATOR) && (CONFIG_CODEC != SWCODEC)
 314 #define mas_codec_readreg(x) rand()%MAX_PEAK
 315 #endif
 316
 317 /* Defines x positions on a logarithmic (dBfs) scale. */
 318 unsigned char analog_db_scale[LCD_WIDTH/2];
 319
 320 /* Define's y positions, to make the needle arch, like a real needle would. */
 321 unsigned char y_values[LCD_WIDTH/2];
 322
 323 const unsigned char digital_db_scale[] =
 324 {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,
 325 10,10,10,10,10,10,10,10,10,11,11,11,11,11,11,11,11};
 326
 327 const unsigned char needle_cover[] =
 328 {0x18, 0x1c, 0x1c, 0x1e, 0x1e, 0x1f, 0x1f, 0x1f, 0x1e, 0x1e, 0x1c, 0x1c, 0x18};
 329
 330 const unsigned char sound_speaker[] = {0x18,0x24,0x42,0xFF};
 331 const unsigned char sound_low_level[] = {0x24,0x18};
 332 const unsigned char sound_med_level[] = {0x42,0x3C};
 333 const unsigned char sound_high_level[] = {0x81,0x7E};
 334 const unsigned char sound_max_level[] = {0x0E,0xDF,0x0E};
 335
 336 const int half_width = LCD_WIDTH / 2;
 337 const int quarter_width = LCD_WIDTH / 4;
 338 const int half_height = LCD_HEIGHT / 2;
 339
 340 /* approx ratio of the previous hard coded values */
 341 const int analog_mini_1 = (LCD_WIDTH / 2)*0.1;
 342 const int analog_mini_2 = (LCD_WIDTH / 2)*0.25;
 343 const int analog_mini_3 = (LCD_WIDTH / 2)*0.4;
 344 const int analog_mini_4 = (LCD_WIDTH / 2)*0.75;
 345
 346 const int digital_block_width = LCD_WIDTH / 11;
 347 const int digital_block_gap = (int)(LCD_WIDTH / 11) / 10;
 348 /* ammount to lead in on left so 11x blocks are centered - is often 0 */
 349 const int digital_lead = (LCD_WIDTH - (((int)(LCD_WIDTH / 11))*11) ) / 2;
 350
 351 const int digital_block_height = (LCD_HEIGHT - 54) / 2 ;
 352
 353 #define ANALOG 0 /* The two meter types */
 354 #define DIGITAL 1
 355
 356 int left_needle_top_y;
 357 int left_needle_top_x;
 358 int last_left_needle_top_x;
 359 int right_needle_top_y;
 360 int right_needle_top_x;
 361 int last_right_needle_top_x = LCD_WIDTH / 2;
 362
 363 int num_left_leds;
 364 int num_right_leds;
 365 int last_num_left_leds;
 366 int last_num_right_leds;
 367
 368 int i;
 369 #ifdef HAVE_LCD_COLOR
 370 int screen_foreground;
 371 #endif
 372
 373 #define MAX_PEAK 0x8000
 374
 375 /* gap at the top for left/right etc */
 376 #define NEEDLE_TOP 25
 377
 378 /* pow(M_E, 5) * 65536 */
 379 #define E_POW_5 9726404
 380
 381 struct saved_settings {
 382     int meter_type;
 383     bool analog_use_db_scale;
 384     bool digital_use_db_scale;
 385     bool analog_minimeters;
 386     bool digital_minimeters;
 387     int analog_decay;
 388     int digital_decay;
 389 } vumeter_settings;
 390
 391 void reset_settings(void) {
 392     vumeter_settings.meter_type=ANALOG;
 393     vumeter_settings.analog_use_db_scale=true;
 394     vumeter_settings.digital_use_db_scale=true;
 395     vumeter_settings.analog_minimeters=true;
 396     vumeter_settings.digital_minimeters=false;
 397     vumeter_settings.analog_decay=3;
 398     vumeter_settings.digital_decay=0;
 399 }
 400
 401 void calc_scales(void)
 402 {
 403     unsigned int fx_log_factor = E_POW_5/half_width;
 404     unsigned int y,z;
 405
 406     long j;
 407     long k;
 408     int nh = LCD_HEIGHT - NEEDLE_TOP;
 409     long nh2 = nh*nh;
 410
 411     for (i=1; i <= half_width; i++)
 412     {
 413         /* analog scale */
 414         y = (half_width/5)*flog(i*fx_log_factor);
 415
 416         /* better way of checking for negative values? */
 417         z = y>>16;
 418         if (z > LCD_WIDTH)
 419             z = 0;
 420
 421         analog_db_scale[i-1] = z;
 422         /* play nice */
 423         rb->yield();
 424
 425         /* y values (analog needle co-ords) */
 426         j = i - (int)(half_width/2);
 427         k = nh2 - ( j * j );
 428
 429         /* fsqrt+1 seems to give a closer approximation */
 430         y_values[i-1] = LCD_HEIGHT - (fsqrt(k, 16)>>8) - 1;
 431         rb->yield();
 432     }
 433 }
 434
 435 void load_settings(void) {
 436     int fp = rb->open(PLUGIN_DEMOS_DIR "/.vu_meter", O_RDONLY);
 437     if(fp>=0) {
 438             rb->read(fp, &vumeter_settings, sizeof(struct saved_settings));
 439             rb->close(fp);
 440     }
 441     else {
 442         reset_settings();
 443         rb->splash(HZ, "Press " LABEL_HELP " for help");
 444     }
 445 }
 446
 447 void save_settings(void) {
 448     int fp = rb->creat(PLUGIN_DEMOS_DIR "/.vu_meter");
 449     if(fp >= 0) {
 450         rb->write (fp, &vumeter_settings, sizeof(struct saved_settings));
 451         rb->close(fp);
 452     }
 453 }
 454
 455 void change_volume(int delta) {
 456     char curr_vol[5];
 457     int minvol = rb->sound_min(SOUND_VOLUME);
 458     int maxvol = rb->sound_max(SOUND_VOLUME);
 459     int vol = rb->global_settings->volume + delta;
 460
 461     if (vol > maxvol) vol = maxvol;
 462     else if (vol < minvol) vol = minvol;
 463     if (vol != rb->global_settings->volume) {
 464         rb->sound_set(SOUND_VOLUME, vol);
 465         rb->global_settings->volume = vol;
 466         rb->snprintf(curr_vol, sizeof(curr_vol), "%d", vol);
 467         rb->lcd_putsxy(0,0, curr_vol);
 468         rb->lcd_update();
 469         rb->sleep(HZ/12);
 470     }
 471 }
 472
 473 static bool vu_meter_menu(void)
 474 {
 475     int selection;
 476     bool menu_quit = false;
 477     bool exit = false;
 478
 479     MENUITEM_STRINGLIST(menu,"VU Meter Menu",NULL,"Meter Type","Scale",
 480                         "Minimeters","Decay Speed","Playback Control",
 481                         "Quit");
 482
 483     static const struct opt_items meter_type_option[2] = {
 484         { "Analog", -1 },
 485         { "Digital", -1 },
 486     };
 487
 488     static const struct opt_items decay_speed_option[7] = {
 489         { "No Decay", -1 },
 490         { "Very Fast", -1 },
 491         { "Fast", -1 },
 492         { "Medium", -1 },
 493         { "Medium-Slow", -1 },
 494         { "Slow", -1 },
 495         { "Very Slow", -1 },
 496     };
 497
 498     while (!menu_quit) {
 499         switch(rb->do_menu(&menu, &selection, NULL, false))
 500         {
 501             case 0:
 502                 rb->set_option("Meter Type", &vumeter_settings.meter_type, INT,
 503                                meter_type_option, 2, NULL);
 504                 break;
 505
 506             case 1:
 507                 if(vumeter_settings.meter_type==ANALOG)
 508                 {
 509                     rb->set_bool_options("Scale", &vumeter_settings.analog_use_db_scale,
 510                                          "dBfs", -1, "Linear", -1, NULL);
 511                 }
 512                 else
 513                 {
 514                     rb->set_bool_options("Scale", &vumeter_settings.digital_use_db_scale,
 515                                          "dBfs", -1, "Linear", -1, NULL);
 516                 }
 517                 break;
 518
 519             case 2:
 520                 if(vumeter_settings.meter_type==ANALOG)
 521                 {
 522                     rb->set_bool("Enable Minimeters",
 523                                  &vumeter_settings.analog_minimeters);
 524                 }
 525                 else
 526                 {
 527                     rb->set_bool("Enable Minimeters",
 528                                  &vumeter_settings.digital_minimeters);
 529                 }
 530                 break;
 531
 532             case 3:
 533                 if(vumeter_settings.meter_type==ANALOG)
 534                 {
 535                     rb->set_option("Decay Speed", &vumeter_settings.analog_decay, INT,
 536                                decay_speed_option, 7, NULL);
 537                 }
 538                 else
 539                 {
 540                     rb->set_option("Decay Speed", &vumeter_settings.digital_decay, INT,
 541                                decay_speed_option, 7, NULL);
 542                 }
 543                 break;
 544
 545             case 4:
 546                 playback_control(NULL);
 547                 break;
 548
 549             case 5:
 550                 exit = true;
 551                 /* fall through to exit the menu */
 552             default:
 553                 menu_quit = true;
 554                 break;
 555         }
 556     }
 557     /* the menu uses the userfont, set it back to sysfont */
 558     rb->lcd_setfont(FONT_SYSFIXED);
 559     return exit;
 560 }
 561
 562 void draw_analog_minimeters(void) {
 563     rb->lcd_mono_bitmap(sound_speaker, quarter_width-28, 12, 4, 8);
 564     rb->lcd_set_drawmode(DRMODE_FG);
 565     if(analog_mini_1<left_needle_top_x)
 566         rb->lcd_mono_bitmap(sound_low_level, quarter_width-23, 12, 2, 8);
 567     if(analog_mini_2<left_needle_top_x)
 568         rb->lcd_mono_bitmap(sound_med_level, quarter_width-21, 12, 2, 8);
 569     if(analog_mini_3<left_needle_top_x)
 570         rb->lcd_mono_bitmap(sound_high_level, quarter_width-19, 12, 2, 8);
 571     if(analog_mini_4<left_needle_top_x)
 572         rb->lcd_mono_bitmap(sound_max_level, quarter_width-16, 12, 3, 8);
 573
 574     rb->lcd_set_drawmode(DRMODE_SOLID);
 575     rb->lcd_mono_bitmap(sound_speaker, quarter_width+half_width-30, 12, 4, 8);
 576     rb->lcd_set_drawmode(DRMODE_FG);
 577     if(analog_mini_1<(right_needle_top_x-half_width))
 578         rb->lcd_mono_bitmap(sound_low_level, quarter_width+half_width-25, 12, 2, 8);
 579     if(analog_mini_2<(right_needle_top_x-half_width))
 580         rb->lcd_mono_bitmap(sound_med_level, quarter_width+half_width-23, 12, 2, 8);
 581     if(analog_mini_3<(right_needle_top_x-half_width))
 582         rb->lcd_mono_bitmap(sound_high_level, quarter_width+half_width-21, 12, 2, 8);
 583     if(analog_mini_4<(right_needle_top_x-half_width))
 584         rb->lcd_mono_bitmap(sound_max_level, quarter_width+half_width-18, 12, 3, 8);
 585     rb->lcd_set_drawmode(DRMODE_SOLID);
 586 }
 587
 588 void draw_digital_minimeters(void) {
 589 #ifdef HAVE_LCD_COLOR
 590     rb->lcd_set_foreground(LCD_RGBPACK(255, 255 - 23 * num_left_leds, 0));
 591 #endif
 592     rb->lcd_mono_bitmap(sound_speaker, 34, half_height-8, 4, 8);
 593     rb->lcd_set_drawmode(DRMODE_FG);
 594     if(1<num_left_leds)
 595         rb->lcd_mono_bitmap(sound_low_level, 39, half_height-8, 2, 8);
 596     if(2<num_left_leds)
 597         rb->lcd_mono_bitmap(sound_med_level, 41, half_height-8, 2, 8);
 598     if(5<num_left_leds)
 599         rb->lcd_mono_bitmap(sound_high_level, 43, half_height-8, 2, 8);
 600     if(8<num_left_leds)
 601         rb->lcd_mono_bitmap(sound_max_level, 46, half_height-8, 3, 8);
 602
 603 #ifdef HAVE_LCD_COLOR
 604     rb->lcd_set_foreground(LCD_RGBPACK(255, 255 - 23 * num_right_leds, 0));
 605 #endif
 606     rb->lcd_set_drawmode(DRMODE_SOLID);
 607     rb->lcd_mono_bitmap(sound_speaker, 34, half_height+8, 4, 8);
 608     rb->lcd_set_drawmode(DRMODE_FG);
 609     if(1<(num_right_leds))
 610         rb->lcd_mono_bitmap(sound_low_level, 39, half_height+8, 2, 8);
 611     if(2<(num_right_leds))
 612         rb->lcd_mono_bitmap(sound_med_level, 41, half_height+8, 2, 8);
 613     if(5<(num_right_leds))
 614         rb->lcd_mono_bitmap(sound_high_level, 43, half_height+8, 2, 8);
 615     if(8<(num_right_leds))
 616         rb->lcd_mono_bitmap(sound_max_level, 46, half_height+8, 3, 8);
 617     rb->lcd_set_drawmode(DRMODE_SOLID);
 618
 619 #ifdef HAVE_LCD_COLOR
 620     rb->lcd_set_foreground(screen_foreground);
 621 #endif
 622 }
 623
 624 void analog_meter(void) {
 625
 626 #if (CONFIG_CODEC == MAS3587F) || (CONFIG_CODEC == MAS3539F)
 627     int left_peak = rb->mas_codec_readreg(0xC);
 628     int right_peak = rb->mas_codec_readreg(0xD);
 629 #elif (CONFIG_CODEC == SWCODEC)
 630     int left_peak, right_peak;
 631     rb->pcm_calculate_peaks(&left_peak, &right_peak);
 632 #endif
 633
 634     if(vumeter_settings.analog_use_db_scale) {
 635         left_needle_top_x = analog_db_scale[left_peak * half_width / MAX_PEAK];
 636         right_needle_top_x = analog_db_scale[right_peak * half_width / MAX_PEAK] + half_width;
 637     }
 638     else {
 639         left_needle_top_x = left_peak * half_width / MAX_PEAK;
 640         right_needle_top_x = right_peak * half_width / MAX_PEAK + half_width;
 641     }
 642
 643     /* Makes a decay on the needle */
 644     left_needle_top_x = (left_needle_top_x+last_left_needle_top_x*vumeter_settings.analog_decay)
 645                         /(vumeter_settings.analog_decay+1);
 646     right_needle_top_x = (right_needle_top_x+last_right_needle_top_x*vumeter_settings.analog_decay)
 647                          /(vumeter_settings.analog_decay+1);
 648
 649     last_left_needle_top_x = left_needle_top_x;
 650     last_right_needle_top_x = right_needle_top_x;
 651
 652     left_needle_top_y = y_values[left_needle_top_x];
 653     right_needle_top_y = y_values[right_needle_top_x-half_width];
 654
 655     /* Needles */
 656     rb->lcd_drawline(quarter_width, LCD_HEIGHT-1, left_needle_top_x, left_needle_top_y);
 657     rb->lcd_drawline((quarter_width+half_width), LCD_HEIGHT-1, right_needle_top_x, right_needle_top_y);
 658
 659     if(vumeter_settings.analog_minimeters)
 660         draw_analog_minimeters();
 661
 662     /* Needle covers */
 663     rb->lcd_set_drawmode(DRMODE_FG);
 664     rb->lcd_mono_bitmap(needle_cover, quarter_width-6, LCD_HEIGHT-5, 13, 5);
 665     rb->lcd_mono_bitmap(needle_cover, half_width+quarter_width-6, LCD_HEIGHT-5, 13, 5);
 666     rb->lcd_set_drawmode(DRMODE_SOLID);
 667
 668     /* Show Left/Right */
 669     rb->lcd_putsxy(quarter_width-12, 12, "Left");
 670     rb->lcd_putsxy(half_width+quarter_width-12, 12, "Right");
 671
 672     /* Line above/below  the Left/Right text */
 673     rb->lcd_hline(0,LCD_WIDTH-1,9);
 674     rb->lcd_hline(0,LCD_WIDTH-1,21);
 675
 676     for(i=0; i<half_width; i++) {
 677         rb->lcd_drawpixel(i, (y_values[i])-2);
 678         rb->lcd_drawpixel(i+half_width, (y_values[i])-2);
 679     }
 680 }
 681
 682 void digital_meter(void) {
 683 #if (CONFIG_CODEC == MAS3587F) || (CONFIG_CODEC == MAS3539F)
 684     int left_peak = rb->mas_codec_readreg(0xC);
 685     int right_peak = rb->mas_codec_readreg(0xD);
 686 #elif (CONFIG_CODEC == SWCODEC)
 687     int left_peak, right_peak;
 688     rb->pcm_calculate_peaks(&left_peak, &right_peak);
 689 #endif
 690
 691     if(vumeter_settings.digital_use_db_scale) {
 692         num_left_leds = digital_db_scale[left_peak * 44 / MAX_PEAK];
 693         num_right_leds = digital_db_scale[right_peak * 44 / MAX_PEAK];
 694     }
 695     else {
 696         num_left_leds = left_peak * 11 / MAX_PEAK;
 697         num_right_leds = right_peak * 11 / MAX_PEAK;
 698     }
 699
 700     num_left_leds = (num_left_leds+last_num_left_leds*vumeter_settings.digital_decay)
 701                     /(vumeter_settings.digital_decay+1);
 702     num_right_leds = (num_right_leds+last_num_right_leds*vumeter_settings.digital_decay)
 703                      /(vumeter_settings.digital_decay+1);
 704
 705     last_num_left_leds = num_left_leds;
 706     last_num_right_leds = num_right_leds;
 707
 708     rb->lcd_set_drawmode(DRMODE_FG);
 709     /* LEDS */
 710     for(i=0; i<num_left_leds; i++) {
 711 #ifdef HAVE_LCD_COLOR
 712         rb->lcd_set_foreground(LCD_RGBPACK(255, 255 - 23 * i, 0));
 713 #endif
 714         rb->lcd_fillrect((digital_lead + (i*digital_block_width)),
 715             14, digital_block_width - digital_block_gap, digital_block_height);
 716     }
 717
 718     for(i=0; i<num_right_leds; i++) {
 719 #ifdef HAVE_LCD_COLOR
 720         rb->lcd_set_foreground(LCD_RGBPACK(255, 255 - 23 * i, 0));
 721 #endif
 722         rb->lcd_fillrect((digital_lead + (i*digital_block_width)),
 723             (half_height + 20), digital_block_width - digital_block_gap,
 724             digital_block_height);
 725     }
 726
 727 #ifdef HAVE_LCD_COLOR
 728     rb->lcd_set_foreground(screen_foreground);
 729 #endif
 730     rb->lcd_set_drawmode(DRMODE_SOLID);
 731
 732     if(vumeter_settings.digital_minimeters)
 733         draw_digital_minimeters();
 734
 735     /* Lines above/below where the LEDS are */
 736     rb->lcd_hline(0,LCD_WIDTH-1,12);
 737     rb->lcd_hline(0,LCD_WIDTH-1,half_height-12);
 738
 739     rb->lcd_hline(0,LCD_WIDTH-1,half_height+18);
 740     rb->lcd_hline(0,LCD_WIDTH-1,LCD_HEIGHT-6);
 741
 742     /* Show Left/Right */
 743     rb->lcd_putsxy(2, half_height-8, "Left");
 744     rb->lcd_putsxy(2, half_height+8, "Right");
 745
 746     /* Line in the middle */
 747     rb->lcd_hline(0,LCD_WIDTH-1,half_height+3);
 748 }
 749
 750 enum plugin_status plugin_start(const void* parameter) {
 751     int button;
 752     int lastbutton = BUTTON_NONE;
 753
 754     (void) parameter;
 755
 756     calc_scales();
 757
 758     load_settings();
 759     rb->lcd_setfont(FONT_SYSFIXED);
 760 #ifdef HAVE_LCD_COLOR
 761     screen_foreground = rb->lcd_get_foreground();
 762 #endif
 763
 764     while (1)
 765     {
 766         rb->lcd_clear_display();
 767
 768         rb->lcd_putsxy(half_width-23, 0, "VU Meter");
 769
 770         if(vumeter_settings.meter_type==ANALOG)
 771             analog_meter();
 772         else
 773             digital_meter();
 774
 775         rb->lcd_update();
 776
 777         button = rb->button_get_w_tmo(1);
 778         switch (button)
 779         {
 780 #ifdef VUMETER_RC_QUIT
 781             case VUMETER_RC_QUIT:
 782 #endif
 783             case VUMETER_QUIT:
 784                 save_settings();
 785                 return PLUGIN_OK;
 786                 break;
 787
 788             case VUMETER_HELP:
 789 #ifdef VUMETER_HELP_PRE
 790                 if (lastbutton != VUMETER_HELP_PRE)
 791                     break;
 792 #endif
 793                 rb->lcd_clear_display();
 794                 rb->lcd_puts(0, 0, LABEL_QUIT ": Exit");
 795                 rb->lcd_puts(0, 1, LABEL_MENU ": Settings");
 796                 rb->lcd_puts(0, 2, LABEL_VOLUME ": Volume");
 797                 rb->lcd_update();
 798                 rb->sleep(HZ*3);
 799                 break;
 800
 801             case VUMETER_MENU:
 802
 803 #ifdef VUMETER_MENU2
 804             case VUMETER_MENU2:
 805 #endif
 806
 807 #ifdef VUMETER_MENU_PRE
 808                 if (lastbutton != VUMETER_MENU_PRE)
 809                     break;
 810 #endif
 811                 if(vu_meter_menu())
 812                     return PLUGIN_OK;
 813                 break;
 814
 815             case VUMETER_UP:
 816             case VUMETER_UP | BUTTON_REPEAT:
 817                 change_volume(1);
 818                 break;
 819
 820             case VUMETER_DOWN:
 821             case VUMETER_DOWN | BUTTON_REPEAT:
 822                 change_volume(-1);
 823                 break;
 824
 825             default:
 826                 if(rb->default_event_handler(button) == SYS_USB_CONNECTED)
 827                     return PLUGIN_USB_CONNECTED;
 828                 break;
 829         }
 830         if (button != BUTTON_NONE)
 831             lastbutton = button;
 832     }
 833 }