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  * All files in this archive are subject to the GNU General Public License.
  12  * See the file COPYING in the source tree root for full license agreement.
  13  *
  14  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
  15  * KIND, either express or implied.
  16  *
  17  **************************************************************************/
  18 #include "plugin.h"
  19 #include "fixedpoint.h"
  20
  21 #if defined(HAVE_LCD_BITMAP)
  22
  23 PLUGIN_HEADER
  24
  25 /* variable button definitions */
  26 #if CONFIG_KEYPAD == RECORDER_PAD
  27 #define VUMETER_QUIT BUTTON_OFF
  28 #define VUMETER_HELP BUTTON_ON
  29 #define VUMETER_MENU BUTTON_F1
  30 #define VUMETER_MENU_EXIT BUTTON_F1
  31 #define VUMETER_MENU_EXIT2 BUTTON_OFF
  32 #define VUMETER_UP BUTTON_UP
  33 #define VUMETER_DOWN BUTTON_DOWN
  34
  35 #elif CONFIG_KEYPAD == ARCHOS_AV300_PAD
  36 #define VUMETER_QUIT BUTTON_OFF
  37 #define VUMETER_HELP BUTTON_ON
  38 #define VUMETER_MENU BUTTON_F1
  39 #define VUMETER_MENU_EXIT BUTTON_F1
  40 #define VUMETER_MENU_EXIT2 BUTTON_OFF
  41 #define VUMETER_UP BUTTON_UP
  42 #define VUMETER_DOWN BUTTON_DOWN
  43
  44 #elif CONFIG_KEYPAD == ONDIO_PAD
  45 #define VUMETER_QUIT BUTTON_OFF
  46 #define VUMETER_HELP_PRE BUTTON_MENU
  47 #define VUMETER_HELP (BUTTON_MENU | BUTTON_REL)
  48 #define VUMETER_MENU_PRE BUTTON_MENU
  49 #define VUMETER_MENU (BUTTON_MENU | BUTTON_REPEAT)
  50 #define VUMETER_MENU_EXIT BUTTON_MENU
  51 #define VUMETER_MENU_EXIT2 BUTTON_OFF
  52 #define VUMETER_UP BUTTON_UP
  53 #define VUMETER_DOWN BUTTON_DOWN
  54
  55 #elif (CONFIG_KEYPAD == IRIVER_H100_PAD) || \
  56       (CONFIG_KEYPAD == IRIVER_H300_PAD)
  57 #define VUMETER_QUIT BUTTON_OFF
  58 #define VUMETER_HELP BUTTON_ON
  59 #define VUMETER_MENU BUTTON_SELECT
  60 #define VUMETER_MENU2 BUTTON_MODE
  61 #define VUMETER_MENU_EXIT BUTTON_SELECT
  62 #define VUMETER_MENU_EXIT2 BUTTON_OFF
  63 #define VUMETER_UP BUTTON_UP
  64 #define VUMETER_DOWN BUTTON_DOWN
  65
  66 #define VUMETER_RC_QUIT BUTTON_RC_STOP
  67
  68 #elif (CONFIG_KEYPAD == IPOD_4G_PAD) || \
  69       (CONFIG_KEYPAD == IPOD_3G_PAD) || \
  70       (CONFIG_KEYPAD == IPOD_1G2G_PAD)
  71 #define VUMETER_QUIT BUTTON_MENU
  72 #define VUMETER_HELP BUTTON_PLAY
  73 #define VUMETER_MENU BUTTON_SELECT
  74 #define VUMETER_MENU_EXIT BUTTON_SELECT
  75 #define VUMETER_MENU_EXIT2 BUTTON_MENU
  76 #define VUMETER_UP BUTTON_SCROLL_FWD
  77 #define VUMETER_DOWN BUTTON_SCROLL_BACK
  78
  79 #elif (CONFIG_KEYPAD == GIGABEAT_PAD)
  80 #define VUMETER_QUIT BUTTON_POWER
  81 #define VUMETER_HELP BUTTON_A
  82 #define VUMETER_MENU BUTTON_MENU
  83 #define VUMETER_MENU_EXIT BUTTON_MENU
  84 #define VUMETER_MENU_EXIT2 BUTTON_POWER
  85 #define VUMETER_UP BUTTON_UP
  86 #define VUMETER_DOWN BUTTON_DOWN
  87
  88 #elif (CONFIG_KEYPAD == SANSA_E200_PAD)
  89 #define VUMETER_QUIT BUTTON_POWER
  90 #define VUMETER_HELP BUTTON_REC
  91 #define VUMETER_MENU BUTTON_SELECT
  92 #define VUMETER_MENU_EXIT BUTTON_SELECT
  93 #define VUMETER_MENU_EXIT2 BUTTON_POWER
  94 #define VUMETER_UP BUTTON_SCROLL_DOWN
  95 #define VUMETER_DOWN BUTTON_SCROLL_UP
  96
  97 #elif (CONFIG_KEYPAD == SANSA_C200_PAD)
  98 #define VUMETER_QUIT BUTTON_POWER
  99 #define VUMETER_HELP BUTTON_REC
 100 #define VUMETER_MENU BUTTON_SELECT
 101 #define VUMETER_MENU_EXIT BUTTON_SELECT
 102 #define VUMETER_MENU_EXIT2 BUTTON_POWER
 103 #define VUMETER_UP BUTTON_VOL_UP
 104 #define VUMETER_DOWN BUTTON_VOL_DOWN
 105
 106 #elif CONFIG_KEYPAD == IAUDIO_X5M5_PAD
 107 #define VUMETER_QUIT BUTTON_POWER
 108 #define VUMETER_HELP BUTTON_PLAY
 109 #define VUMETER_MENU BUTTON_SELECT
 110 #define VUMETER_MENU_EXIT BUTTON_SELECT
 111 #define VUMETER_MENU_EXIT2 BUTTON_POWER
 112 #define VUMETER_UP BUTTON_UP
 113 #define VUMETER_DOWN BUTTON_DOWN
 114
 115 #elif CONFIG_KEYPAD == IRIVER_H10_PAD
 116 #define VUMETER_QUIT BUTTON_POWER
 117 #define VUMETER_HELP BUTTON_PLAY
 118 #define VUMETER_MENU BUTTON_REW
 119 #define VUMETER_MENU_EXIT BUTTON_REW
 120 #define VUMETER_MENU_EXIT2 BUTTON_POWER
 121 #define VUMETER_UP BUTTON_SCROLL_UP
 122 #define VUMETER_DOWN BUTTON_SCROLL_DOWN
 123
 124 #endif
 125
 126 const struct plugin_api* rb;
 127
 128 #if defined(SIMULATOR) && (CONFIG_CODEC != SWCODEC)
 129 #define mas_codec_readreg(x) rand()%MAX_PEAK
 130 #endif
 131
 132 /* Defines x positions on a logarithmic (dBfs) scale. */
 133 unsigned char analog_db_scale[LCD_WIDTH/2];
 134
 135 /* Define's y positions, to make the needle arch, like a real needle would. */
 136 unsigned char y_values[LCD_WIDTH/2];
 137
 138 const unsigned char digital_db_scale[] =
 139 {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,
 140 10,10,10,10,10,10,10,10,10,11,11,11,11,11,11,11,11};
 141
 142 const unsigned char needle_cover[] =
 143 {0x18, 0x1c, 0x1c, 0x1e, 0x1e, 0x1f, 0x1f, 0x1f, 0x1e, 0x1e, 0x1c, 0x1c, 0x18};
 144
 145 const unsigned char sound_speaker[] = {0x18,0x24,0x42,0xFF};
 146 const unsigned char sound_low_level[] = {0x24,0x18};
 147 const unsigned char sound_med_level[] = {0x42,0x3C};
 148 const unsigned char sound_high_level[] = {0x81,0x7E};
 149 const unsigned char sound_max_level[] = {0x0E,0xDF,0x0E};
 150
 151 const int half_width = LCD_WIDTH / 2;
 152 const int quarter_width = LCD_WIDTH / 4;
 153 const int half_height = LCD_HEIGHT / 2;
 154
 155 /* approx ratio of the previous hard coded values */
 156 const int analog_mini_1 = (LCD_WIDTH / 2)*0.1;
 157 const int analog_mini_2 = (LCD_WIDTH / 2)*0.25;
 158 const int analog_mini_3 = (LCD_WIDTH / 2)*0.4;
 159 const int analog_mini_4 = (LCD_WIDTH / 2)*0.75;
 160
 161 const int digital_block_width = LCD_WIDTH / 11;
 162 const int digital_block_gap = (int)(LCD_WIDTH / 11) / 10;
 163 /* ammount to lead in on left so 11x blocks are centered - is often 0 */
 164 const int digital_lead = (LCD_WIDTH - (((int)(LCD_WIDTH / 11))*11) ) / 2;
 165
 166 const int digital_block_height = (LCD_HEIGHT - 54) / 2 ;
 167
 168 #define ANALOG 0 /* The two meter types */
 169 #define DIGITAL 1
 170
 171 int left_needle_top_y;
 172 int left_needle_top_x;
 173 int last_left_needle_top_x;
 174 int right_needle_top_y;
 175 int right_needle_top_x;
 176 int last_right_needle_top_x = LCD_WIDTH / 2;
 177
 178 int num_left_leds;
 179 int num_right_leds;
 180 int last_num_left_leds;
 181 int last_num_right_leds;
 182
 183 int i;
 184
 185 #define MAX_PEAK 0x8000
 186
 187 /* gap at the top for left/right etc */
 188 #define NEEDLE_TOP 25
 189
 190 /* pow(M_E, 5) * 65536 */
 191 #define E_POW_5 9726404
 192
 193 struct saved_settings {
 194     int meter_type;
 195     bool analog_use_db_scale;
 196     bool digital_use_db_scale;
 197     bool analog_minimeters;
 198     bool digital_minimeters;
 199     int analog_decay;
 200     int digital_decay;
 201 } vumeter_settings;
 202
 203 void reset_settings(void) {
 204     vumeter_settings.meter_type=ANALOG;
 205     vumeter_settings.analog_use_db_scale=true;
 206     vumeter_settings.digital_use_db_scale=true;
 207     vumeter_settings.analog_minimeters=true;
 208     vumeter_settings.digital_minimeters=false;
 209     vumeter_settings.analog_decay=3;
 210     vumeter_settings.digital_decay=0;
 211 }
 212
 213 void calc_scales(void)
 214 {
 215     unsigned int fx_log_factor = E_POW_5/half_width;
 216     unsigned int y,z;
 217
 218     long j;
 219     long k;
 220     int nh = LCD_HEIGHT - NEEDLE_TOP;
 221     long nh2 = nh*nh;
 222
 223     for (i=1; i <= half_width; i++)
 224     {
 225         /* analog scale */
 226         y = (half_width/5)*flog(i*fx_log_factor);
 227
 228         /* better way of checking for negative values? */
 229         z = y>>16;
 230         if (z > LCD_WIDTH)
 231             z = 0;
 232
 233         analog_db_scale[i-1] = z;
 234         /* play nice */
 235         rb->yield();
 236
 237         /* y values (analog needle co-ords) */
 238         j = i - (int)(half_width/2);
 239         k = nh2 - ( j * j );
 240
 241         /* fsqrt+1 seems to give a closer approximation */
 242         y_values[i-1] = LCD_HEIGHT - (fsqrt(k, 16)>>8) - 1;
 243         rb->yield();
 244     }
 245 }
 246
 247 void load_settings(void) {
 248     int fp = rb->open(PLUGIN_DEMOS_DIR "/.vu_meter", O_RDONLY);
 249     if(fp>=0) {
 250             rb->read(fp, &vumeter_settings, sizeof(struct saved_settings));
 251             rb->close(fp);
 252     }
 253     else {
 254         reset_settings();
 255 #if CONFIG_KEYPAD == RECORDER_PAD
 256         rb->splash(HZ, "Press ON for help");
 257 #elif CONFIG_KEYPAD == ONDIO_PAD
 258         rb->splash(HZ, "Press MODE for help");
 259 #endif
 260     }
 261 }
 262
 263 void save_settings(void) {
 264     int fp = rb->creat(PLUGIN_DEMOS_DIR "/.vu_meter");
 265     if(fp >= 0) {
 266         rb->write (fp, &vumeter_settings, sizeof(struct saved_settings));
 267         rb->close(fp);
 268     }
 269 }
 270
 271 void change_volume(int delta) {
 272     char curr_vol[5];
 273     int minvol = rb->sound_min(SOUND_VOLUME);
 274     int maxvol = rb->sound_max(SOUND_VOLUME);
 275     int vol = rb->global_settings->volume + delta;
 276
 277     if (vol > maxvol) vol = maxvol;
 278     else if (vol < minvol) vol = minvol;
 279     if (vol != rb->global_settings->volume) {
 280         rb->sound_set(SOUND_VOLUME, vol);
 281         rb->global_settings->volume = vol;
 282         rb->snprintf(curr_vol, sizeof(curr_vol), "%d", vol);
 283         rb->lcd_putsxy(0,0, curr_vol);
 284         rb->lcd_update();
 285         rb->sleep(HZ/12);
 286     }
 287 }
 288
 289 static bool vu_meter_menu(void)
 290 {
 291     int selection;
 292     bool menu_quit = false;
 293     bool exit = false;
 294
 295     MENUITEM_STRINGLIST(menu,"VU Meter Menu",NULL,"Meter Type","Scale",
 296                         "Minimeters","Decay Speed","Quit");
 297
 298     static const struct opt_items meter_type_option[2] = {
 299         { "Analog", -1 },
 300         { "Digital", -1 },
 301     };
 302
 303     static const struct opt_items decay_speed_option[7] = {
 304         { "No Decay", -1 },
 305         { "Very Fast", -1 },
 306         { "Fast", -1 },
 307         { "Medium", -1 },
 308         { "Medium-Slow", -1 },
 309         { "Slow", -1 },
 310         { "Very Slow", -1 },
 311     };
 312
 313     while (!menu_quit) {
 314         switch(rb->do_menu(&menu, &selection))
 315         {
 316             case 0:
 317                 rb->set_option("Meter Type", &vumeter_settings.meter_type, INT,
 318                                meter_type_option, 2, NULL);
 319                 break;
 320
 321             case 1:
 322                 if(vumeter_settings.meter_type==ANALOG)
 323                 {
 324                     rb->set_bool_options("Scale", &vumeter_settings.analog_use_db_scale,
 325                                          "dBfs", -1, "Linear", -1, NULL);
 326                 }
 327                 else
 328                 {
 329                     rb->set_bool_options("Scale", &vumeter_settings.digital_use_db_scale,
 330                                          "dBfs", -1, "Linear", -1, NULL);
 331                 }
 332                 break;
 333
 334             case 2:
 335                 if(vumeter_settings.meter_type==ANALOG)
 336                 {
 337                     rb->set_bool("Enable Minimeters",
 338                                  &vumeter_settings.analog_minimeters);
 339                 }
 340                 else
 341                 {
 342                     rb->set_bool("Enable Minimeters",
 343                                  &vumeter_settings.digital_minimeters);
 344                 }
 345                 break;
 346
 347             case 3:
 348                 if(vumeter_settings.meter_type==ANALOG)
 349                 {
 350                     rb->set_option("Decay Speed", &vumeter_settings.analog_decay, INT,
 351                                decay_speed_option, 7, NULL);
 352                 }
 353                 else
 354                 {
 355                     rb->set_option("Decay Speed", &vumeter_settings.digital_decay, INT,
 356                                decay_speed_option, 7, NULL);
 357                 }
 358                 break;
 359
 360             case 4:
 361                 exit = true;
 362                 /* fall through to exit the menu */
 363             default:
 364                 menu_quit = true;
 365                 break;
 366         }
 367     }
 368     /* the menu uses the userfont, set it back to sysfont */
 369     rb->lcd_setfont(FONT_SYSFIXED);
 370     return exit;
 371 }
 372
 373 void draw_analog_minimeters(void) {
 374     rb->lcd_mono_bitmap(sound_speaker, quarter_width-28, 12, 4, 8);
 375     rb->lcd_set_drawmode(DRMODE_FG);
 376     if(analog_mini_1<left_needle_top_x)
 377         rb->lcd_mono_bitmap(sound_low_level, quarter_width-23, 12, 2, 8);
 378     if(analog_mini_2<left_needle_top_x)
 379         rb->lcd_mono_bitmap(sound_med_level, quarter_width-21, 12, 2, 8);
 380     if(analog_mini_3<left_needle_top_x)
 381         rb->lcd_mono_bitmap(sound_high_level, quarter_width-19, 12, 2, 8);
 382     if(analog_mini_4<left_needle_top_x)
 383         rb->lcd_mono_bitmap(sound_max_level, quarter_width-16, 12, 3, 8);
 384
 385     rb->lcd_set_drawmode(DRMODE_SOLID);
 386     rb->lcd_mono_bitmap(sound_speaker, quarter_width+half_width-30, 12, 4, 8);
 387     rb->lcd_set_drawmode(DRMODE_FG);
 388     if(analog_mini_1<(right_needle_top_x-half_width))
 389         rb->lcd_mono_bitmap(sound_low_level, quarter_width+half_width-25, 12, 2, 8);
 390     if(analog_mini_2<(right_needle_top_x-half_width))
 391         rb->lcd_mono_bitmap(sound_med_level, quarter_width+half_width-23, 12, 2, 8);
 392     if(analog_mini_3<(right_needle_top_x-half_width))
 393         rb->lcd_mono_bitmap(sound_high_level, quarter_width+half_width-21, 12, 2, 8);
 394     if(analog_mini_4<(right_needle_top_x-half_width))
 395         rb->lcd_mono_bitmap(sound_max_level, quarter_width+half_width-18, 12, 3, 8);
 396     rb->lcd_set_drawmode(DRMODE_SOLID);
 397 }
 398
 399 void draw_digital_minimeters(void) {
 400     rb->lcd_mono_bitmap(sound_speaker, 34, half_height-8, 4, 8);
 401     rb->lcd_set_drawmode(DRMODE_FG);
 402     if(1<num_left_leds)
 403         rb->lcd_mono_bitmap(sound_low_level, 39, half_height-8, 2, 8);
 404     if(2<num_left_leds)
 405         rb->lcd_mono_bitmap(sound_med_level, 41, half_height-8, 2, 8);
 406     if(5<num_left_leds)
 407         rb->lcd_mono_bitmap(sound_high_level, 43, half_height-8, 2, 8);
 408     if(8<num_left_leds)
 409         rb->lcd_mono_bitmap(sound_max_level, 46, half_height-8, 3, 8);
 410
 411     rb->lcd_set_drawmode(DRMODE_SOLID);
 412     rb->lcd_mono_bitmap(sound_speaker, 34, half_height+8, 4, 8);
 413     rb->lcd_set_drawmode(DRMODE_FG);
 414     if(1<(num_right_leds))
 415         rb->lcd_mono_bitmap(sound_low_level, 39, half_height+8, 2, 8);
 416     if(2<(num_right_leds))
 417         rb->lcd_mono_bitmap(sound_med_level, 41, half_height+8, 2, 8);
 418     if(5<(num_right_leds))
 419         rb->lcd_mono_bitmap(sound_high_level, 43, half_height+8, 2, 8);
 420     if(8<(num_right_leds))
 421         rb->lcd_mono_bitmap(sound_max_level, 46, half_height+8, 3, 8);
 422     rb->lcd_set_drawmode(DRMODE_SOLID);
 423 }
 424
 425 void analog_meter(void) {
 426
 427 #if (CONFIG_CODEC == MAS3587F) || (CONFIG_CODEC == MAS3539F)
 428     int left_peak = rb->mas_codec_readreg(0xC);
 429     int right_peak = rb->mas_codec_readreg(0xD);
 430 #elif (CONFIG_CODEC == SWCODEC)
 431     int left_peak, right_peak;
 432     rb->pcm_calculate_peaks(&left_peak, &right_peak);
 433 #endif
 434
 435     if(vumeter_settings.analog_use_db_scale) {
 436         left_needle_top_x = analog_db_scale[left_peak * half_width / MAX_PEAK];
 437         right_needle_top_x = analog_db_scale[right_peak * half_width / MAX_PEAK] + half_width;
 438     }
 439     else {
 440         left_needle_top_x = left_peak * half_width / MAX_PEAK;
 441         right_needle_top_x = right_peak * half_width / MAX_PEAK + half_width;
 442     }
 443
 444     /* Makes a decay on the needle */
 445     left_needle_top_x = (left_needle_top_x+last_left_needle_top_x*vumeter_settings.analog_decay)
 446                         /(vumeter_settings.analog_decay+1);
 447     right_needle_top_x = (right_needle_top_x+last_right_needle_top_x*vumeter_settings.analog_decay)
 448                          /(vumeter_settings.analog_decay+1);
 449
 450     last_left_needle_top_x = left_needle_top_x;
 451     last_right_needle_top_x = right_needle_top_x;
 452
 453     left_needle_top_y = y_values[left_needle_top_x];
 454     right_needle_top_y = y_values[right_needle_top_x-half_width];
 455
 456     /* Needles */
 457     rb->lcd_drawline(quarter_width, LCD_HEIGHT-1, left_needle_top_x, left_needle_top_y);
 458     rb->lcd_drawline((quarter_width+half_width), LCD_HEIGHT-1, right_needle_top_x, right_needle_top_y);
 459
 460     if(vumeter_settings.analog_minimeters)
 461         draw_analog_minimeters();
 462
 463     /* Needle covers */
 464     rb->lcd_set_drawmode(DRMODE_FG);
 465     rb->lcd_mono_bitmap(needle_cover, quarter_width-6, LCD_HEIGHT-5, 13, 5);
 466     rb->lcd_mono_bitmap(needle_cover, half_width+quarter_width-6, LCD_HEIGHT-5, 13, 5);
 467     rb->lcd_set_drawmode(DRMODE_SOLID);
 468
 469     /* Show Left/Right */
 470     rb->lcd_putsxy(quarter_width-12, 12, "Left");
 471     rb->lcd_putsxy(half_width+quarter_width-12, 12, "Right");
 472
 473     /* Line above/below  the Left/Right text */
 474     rb->lcd_drawline(0,9,LCD_WIDTH-1,9);
 475     rb->lcd_drawline(0,21,LCD_WIDTH-1,21);
 476
 477     for(i=0; i<half_width; i++) {
 478         rb->lcd_drawpixel(i, (y_values[i])-2);
 479         rb->lcd_drawpixel(i+half_width, (y_values[i])-2);
 480     }
 481 }
 482
 483 void digital_meter(void) {
 484 #if (CONFIG_CODEC == MAS3587F) || (CONFIG_CODEC == MAS3539F)
 485     int left_peak = rb->mas_codec_readreg(0xC);
 486     int right_peak = rb->mas_codec_readreg(0xD);
 487 #elif (CONFIG_CODEC == SWCODEC)
 488     int left_peak, right_peak;
 489     rb->pcm_calculate_peaks(&left_peak, &right_peak);
 490 #endif
 491
 492     if(vumeter_settings.digital_use_db_scale) {
 493         num_left_leds = digital_db_scale[left_peak * 44 / MAX_PEAK];
 494         num_right_leds = digital_db_scale[right_peak * 44 / MAX_PEAK];
 495     }
 496     else {
 497         num_left_leds = left_peak * 11 / MAX_PEAK;
 498         num_right_leds = right_peak * 11 / MAX_PEAK;
 499     }
 500
 501     num_left_leds = (num_left_leds+last_num_left_leds*vumeter_settings.digital_decay)
 502                     /(vumeter_settings.digital_decay+1);
 503     num_right_leds = (num_right_leds+last_num_right_leds*vumeter_settings.digital_decay)
 504                      /(vumeter_settings.digital_decay+1);
 505
 506     last_num_left_leds = num_left_leds;
 507     last_num_right_leds = num_right_leds;
 508
 509     rb->lcd_set_drawmode(DRMODE_FG);
 510     /* LEDS */
 511     for(i=0; i<num_left_leds; i++)
 512         rb->lcd_fillrect((digital_lead + (i*digital_block_width)),
 513             14, digital_block_width - digital_block_gap, digital_block_height);
 514
 515     for(i=0; i<num_right_leds; i++)
 516         rb->lcd_fillrect((digital_lead + (i*digital_block_width)),
 517             (half_height + 20), digital_block_width - digital_block_gap,
 518             digital_block_height);
 519
 520     rb->lcd_set_drawmode(DRMODE_SOLID);
 521
 522     if(vumeter_settings.digital_minimeters)
 523         draw_digital_minimeters();
 524
 525     /* Lines above/below where the LEDS are */
 526     rb->lcd_drawline(0,12,LCD_WIDTH-1,12);
 527     rb->lcd_drawline(0,half_height-12,LCD_WIDTH-1,half_height-12);
 528
 529     rb->lcd_drawline(0,half_height+18,LCD_WIDTH-1,half_height+18);
 530     rb->lcd_drawline(0,LCD_HEIGHT-6,LCD_WIDTH-1,LCD_HEIGHT-6);
 531
 532     /* Show Left/Right */
 533     rb->lcd_putsxy(2, half_height-8, "Left");
 534     rb->lcd_putsxy(2, half_height+8, "Right");
 535
 536     /* Line in the middle */
 537     rb->lcd_drawline(0,half_height+3,LCD_WIDTH-1,half_height+3);
 538 }
 539
 540 enum plugin_status plugin_start(struct plugin_api* api, void* parameter) {
 541     int button;
 542     int lastbutton = BUTTON_NONE;
 543
 544     (void) parameter;
 545     rb = api;
 546
 547     calc_scales();
 548
 549     load_settings();
 550     rb->lcd_setfont(FONT_SYSFIXED);
 551
 552     while (1)
 553     {
 554         rb->lcd_clear_display();
 555
 556         rb->lcd_putsxy(half_width-23, 0, "VU Meter");
 557
 558         if(vumeter_settings.meter_type==ANALOG)
 559             analog_meter();
 560         else
 561             digital_meter();
 562
 563         rb->lcd_update();
 564
 565         button = rb->button_get_w_tmo(1);
 566         switch (button)
 567         {
 568 #ifdef VUMETER_RC_QUIT
 569             case VUMETER_RC_QUIT:
 570 #endif
 571             case VUMETER_QUIT:
 572                 save_settings();
 573                 return PLUGIN_OK;
 574                 break;
 575
 576             case VUMETER_HELP:
 577 #ifdef VUMETER_HELP_PRE
 578                 if (lastbutton != VUMETER_HELP_PRE)
 579                     break;
 580 #endif
 581                 rb->lcd_clear_display();
 582                 rb->lcd_puts(0, 0, "OFF: Exit");
 583 #if CONFIG_KEYPAD == RECORDER_PAD
 584                 rb->lcd_puts(0, 1, "F1: Settings");
 585 #elif CONFIG_KEYPAD == ONDIO_PAD
 586                 rb->lcd_puts(0, 1, "MODE..: Settings");
 587 #endif
 588                 rb->lcd_puts(0, 2, "UP/DOWN: Volume");
 589                 rb->lcd_update();
 590                 rb->sleep(HZ*3);
 591                 break;
 592
 593             case VUMETER_MENU:
 594
 595 #ifdef VUMETER_MENU2
 596             case VUMETER_MENU2:
 597 #endif
 598
 599 #ifdef VUMETER_MENU_PRE
 600                 if (lastbutton != VUMETER_MENU_PRE)
 601                     break;
 602 #endif
 603                 if(vu_meter_menu())
 604                     return PLUGIN_OK;
 605                 break;
 606
 607             case VUMETER_UP:
 608             case VUMETER_UP | BUTTON_REPEAT:
 609                 change_volume(1);
 610                 break;
 611
 612             case VUMETER_DOWN:
 613             case VUMETER_DOWN | BUTTON_REPEAT:
 614                 change_volume(-1);
 615                 break;
 616
 617             default:
 618                 if(rb->default_event_handler(button) == SYS_USB_CONNECTED)
 619                     return PLUGIN_USB_CONNECTED;
 620                 break;
 621         }
 622         if (button != BUTTON_NONE)
 623             lastbutton = button;
 624     }
 625 }
 626 #endif /* #ifdef HAVE_LCD_BITMAP */