apps/plugins/metronome.c

   1 /***************************************************************************
   2  *             __________               __   ___.
   3  *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
   4  *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
   5  *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
   6  *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
   7  *                     \/            \/     \/    \/            \/
   8  * $Id$
   9  *
  10  * Copyright (C) 2004 Matthias Wientapper
  11  *
  12  * All files in this archive are subject to the GNU General Public License.
  13  * See the file COPYING in the source tree root for full license agreement.
  14  *
  15  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
  16  * KIND, either express or implied.
  17  *
  18  ****************************************************************************/
  19 #include "plugin.h"
  20
  21 #ifndef SIMULATOR
  22
  23 static struct plugin_api* rb;
  24
  25 static int bpm      = 120;
  26 static int period   = 0;
  27 static int minitick = 0;
  28
  29 static bool sound_active = false;
  30 static bool sound_paused = true;
  31
  32 static char buffer[30];
  33
  34 /*tick sound from a metronome*/
  35 static unsigned char sound[]={
  36 255,251, 80,196,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
  37   0, 73,110,102,111,  0,  0,  0, 15,  0,  0,  0,  4,  0,  0,  4, 19,  0, 64, 64,
  38  64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64,
  39  64, 64, 64,128,128,128,128,128,128,128,128,128,128,128,128,128,128,128,128,128,
  40 128,128,128,128,128,128,128,128,192,192,192,192,192,192,192,192,192,192,192,192,
  41 192,192,192,192,192,192,192,192,192,192,192,192,192,255,255,255,255,255,255,255,
  42 255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,  0,  0,  0,
  43  58, 76, 65, 77, 69, 51, 46, 57, 50, 32,  1,137,  0,  0,  0,  0,  0,  0,  0,  0,
  44   2, 64, 36,  5,191, 65,  0,  0,  0,  0,  0,  4, 19,168,187,153, 93,  0,  0,  0,
  45   0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
  46   0,  0,  0,  0,  0,  0,  0,  0,255,251, 80,196,  0,  0, 10, 81, 57, 65,184,120,
  47 128,  1, 95,159,239,191,144, 96,  0,  0,128,  0,  0,  0,  0,  0,  0, 48, 24, 12,
  48   0,  0, 15,175,185,222, 39,  7,126, 46, 50,191,243,197,255,247, 62, 92,111,252,
  49 115, 15, 27,140,153,159,247,242,124, 44, 92,164,177, 57,175,255,236, 79,164, 98,
  50  68,205, 69,160, 64, 15,251,127,128,168, 38, 92,138, 17, 67,196, 80,184,223,255,
  51 255,161,117, 33, 55, 83,191,255,193,240, 33, 57,114, 17,  0,  2,  0,  0,  0, 10,
  52 191, 10,  8,196,209, 75, 55,236,177,115,238,223,203, 61,176, 89, 78,101,219,118,
  53 118, 65,154,126,187,239,241,127,247,245, 59, 18,219, 94,105,245,221,161,173, 91,
  54 191, 27,255,247, 18,124, 71,117,139,133,170,221,227,251,135,110,236,255,183,219,
  55 100, 78,184,125,212,131, 65, 95,212,245,145, 67, 77, 10,153,250,132,195,  4,138,
  56 224,  0,  0,  0,158,107, 42, 65,227,185, 90,158, 86,  6,155, 77,255,251, 82,196,
  57   8,  0, 10,136,185,103,  4, 61, 48, 65,118,173, 44, 60,147, 10,152,107, 49, 74,
  58  18,208, 91, 23,178,196,220, 25, 64,233,230, 36,170,  0,210,219,131, 40,165, 22,
  59  86,195, 23,145, 33, 16,138, 99,109,117,245, 71,162, 69, 42,220,164, 91, 72,165,
  60  26, 69,146,150,199,222, 73,102,148, 29, 19,  5, 65, 86,  6,150,120,180, 26, 88,
  61  75, 18,191,255,250,171,  4,  8,132,140,  0,  0, 20,186,242,162, 66,100, 62, 86,
  62 206, 86,255, 26,203,201,255,255,141,128,166,196,175,133,  9, 70,188,146,175,133,
  63  60, 17,217,229, 90, 27, 87, 93, 34, 76,113,185, 84,213, 56, 17,170, 83, 75,180,
  64 203,116,101, 93, 90, 99, 35,174,230, 42,125, 12,128, 79, 93, 81,234, 67, 66,137,
  65 105,157,157, 23, 71, 53, 40,250,204,105, 89,203,107,250, 63,174, 89,133, 81,140,
  66   0, 52, 17, 16,  0,  0, 18,111, 20, 92, 32,213, 48,179, 50, 26,244,179, 27,230,
  67 154, 34,133,177, 88,255,251, 82,196, 13,  0, 10,125, 65, 85,244, 85,  0,  1,210,
  68 172,231,  7, 31, 32,  0, 37, 11, 68, 69, 13, 37, 48,210, 23, 69, 36,122,143,148,
  69 211,141, 44, 76,135, 72,148,195,135,174, 84,149,167, 30,198,183,255,213,111, 61,
  70  27,155,191,177,207,246,163,255,230, 30,137,219,255,182,186,185,239, 52,148,171,
  71  75, 63,167, 44,  0,  2, 81,190, 41,253,248,182,180, 23, 43,127,217,161, 41,191,
  72  36,199, 40,153,108, 66,224,131,192,217, 12, 67,217,  6,218,240,108,112, 63, 33,
  73  93, 12,  8, 43, 66, 42, 74, 12,215,135,100,172, 33, 65,172, 29, 98,  4, 83, 34,
  74  40, 17,111,133,255, 18,145, 60, 59,136,145, 92,106,144, 34,185, 58, 76,154,254,
  75 146,144,115,  4, 84,180,142,178, 38, 79,253, 34,237,105, 31,106, 70, 73, 36,138,
  76  73,164,181,127,253,182, 82,217, 26,245,117,163,255,219, 50,115,223,245, 92,198,
  77 165,173,  0, 15,249,132, 50, 19,157, 85,121,153,245, 51,255,251, 82,196,  6,131,
  78  74, 96,134,156, 92, 19,  0,  8,  0,  0, 52,128,  0,  0,  0, 60,226, 73, 57, 26,
  79 249,253,122,211,128, 65, 86, 10,  1,  9,195,128, 36, 72,225,196,146,115, 73, 18,
  80  75, 65, 77,  9,  5,200, 43, 16,163,129, 77,  9,  5,200,110, 39,127,255,255,255,
  81 255,255,255,255,252, 83, 66,142,140, 21,136, 46, 64,166,133, 28, 12, 21,136, 46,
  82  64,166,133, 21,  6, 76, 65, 77, 69, 51, 46, 57, 50, 85, 85, 85, 85, 85, 85, 85,
  83  85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85,
  84  85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85,
  85  85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85,
  86  85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85,
  87  85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85,
  88     85, 85, 85};
  89
  90
  91
  92 void led(bool on){
  93     if(on)
  94         or_b(0x40, &PBDRL);
  95     else
  96         and_b(~0x40, &PBDRL);
  97 }
  98
  99 void calc_period(void){
 100     period =  61440/bpm-1; // (60*1024)/bpm;
 101 }
 102
 103 void callback(unsigned char** start, int* size){
 104     (void)start; /* unused parameter, avoid warning */
 105     *size = NULL; /* end of data */
 106     sound_active = false;
 107     led(0);
 108 }
 109
 110 void play_tock(void){
 111     sound_active = true;
 112     led(1);
 113     rb->mp3_play_data(sound, sizeof(sound), callback);
 114     rb->mp3_play_pause(true); /* kickoff audio */
 115 }
 116
 117
 118 void draw_display(void){
 119     rb->lcd_clear_display();
 120
 121 #ifdef HAVE_LCD_BITMAP
 122     rb->lcd_setfont(FONT_SYSFIXED);
 123     rb->lcd_putsxy(1, 1, "Metronome");
 124 #endif
 125
 126     rb->snprintf(buffer, sizeof(buffer), "BPM: %d ",bpm);
 127 #ifdef HAVE_LCD_BITMAP
 128     rb->lcd_puts(0,7, buffer);
 129 #else
 130     rb->lcd_puts(0,0, buffer);
 131 #endif
 132     rb->snprintf(buffer, sizeof(buffer), "Vol: %d",
 133                  rb->global_settings->volume);
 134 #ifdef HAVE_LCD_BITMAP
 135     rb->lcd_puts(10, 7, buffer);
 136 #else
 137     rb->lcd_puts(0,1, buffer);
 138 #endif
 139
 140 #ifdef HAVE_LCD_BITMAP
 141     rb->lcd_drawline(0, 12, 111, 12);
 142     if(sound_paused)
 143         rb->lcd_puts(0,2,"press play");
 144     else
 145         rb->lcd_puts(0,2,"press pause");
 146     rb->lcd_update();
 147 #endif
 148 }
 149
 150 /* helper function to change the volume by a certain amount, +/-
 151    ripped from video.c */
 152 void change_volume(int delta){
 153     int vol = rb->global_settings->volume + delta;
 154     char buffer[30];
 155     if (vol > 100) vol = 100;
 156     else if (vol < 0) vol = 0;
 157     if (vol != rb->global_settings->volume) {
 158         rb->mpeg_sound_set(SOUND_VOLUME, vol);
 159         rb->global_settings->volume = vol;
 160         rb->snprintf(buffer, sizeof(buffer), "Vol: %d ", vol);
 161 #ifdef HAVE_LCD_BITMAP
 162         rb->lcd_puts(10,7, buffer);
 163         rb->lcd_update();
 164 #else
 165         rb->lcd_puts(0,1, buffer);
 166 #endif
 167     }
 168 }
 169
 170 void timer_callback(void){
 171     if(minitick>=period){
 172         minitick = 0;
 173         if(!sound_active && !sound_paused){
 174             play_tock();
 175         }
 176     }
 177     else {
 178         minitick++;
 179     }
 180 }
 181
 182
 183 enum plugin_status plugin_start(struct plugin_api* api, void* parameter){
 184
 185     TEST_PLUGIN_API(api);
 186     (void)parameter;
 187     rb = api;
 188
 189     rb->bitswap(sound, sizeof(sound));
 190
 191     if (rb->mp3_is_playing())
 192         rb->mp3_play_stop(); // stop audio ISR
 193
 194      calc_period();
 195      rb->plugin_register_timer((FREQ/1024), 1, timer_callback);
 196
 197      draw_display();
 198
 199     /* main loop */
 200     while (true){
 201
 202         switch (rb->button_get(false)) {
 203 #ifdef HAVE_RECORDER_KEYPAD
 204         case BUTTON_OFF:
 205 #else
 206         case BUTTON_STOP:
 207 #endif
 208             /* get out of here */
 209             rb->mp3_play_stop(); /* stop audio ISR */
 210             rb->plugin_unregister_timer();
 211             led(0);
 212             return PLUGIN_OK;
 213
 214         case BUTTON_PLAY:
 215             if(sound_paused)
 216                 sound_paused = false;
 217             else
 218                 sound_paused = true;
 219             calc_period();
 220             draw_display();
 221             break;
 222
 223 #ifdef HAVE_RECORDER_KEYPAD
 224         case BUTTON_UP:
 225         case BUTTON_UP | BUTTON_REPEAT:
 226 #else
 227         case BUTTON_ON | BUTTON_RIGHT:
 228         case BUTTON_ON | BUTTON_RIGHT | BUTTON_REPEAT:
 229 #endif
 230             change_volume(1);
 231             calc_period();
 232             break;
 233
 234 #ifdef HAVE_RECORDER_KEYPAD
 235         case BUTTON_DOWN:
 236         case BUTTON_DOWN | BUTTON_REPEAT:
 237 #else
 238         case BUTTON_ON | BUTTON_LEFT:
 239         case BUTTON_ON | BUTTON_LEFT | BUTTON_REPEAT:
 240 #endif
 241             change_volume(-1);
 242             calc_period();
 243             break;
 244
 245         case BUTTON_LEFT:
 246             if (bpm > 1)
 247                 bpm--;
 248             calc_period();
 249             draw_display();
 250             break;
 251
 252         case BUTTON_LEFT | BUTTON_REPEAT:
 253             if (bpm > 10)
 254                 bpm=bpm-10;
 255             calc_period();
 256             draw_display();
 257             break;
 258
 259         case BUTTON_RIGHT:
 260             if(bpm < 400)
 261                 bpm++;
 262             calc_period();
 263             draw_display();
 264             break;
 265
 266         case BUTTON_RIGHT | BUTTON_REPEAT:
 267             if (bpm < 400)
 268                 bpm=bpm+10;
 269             calc_period();
 270             draw_display();
 271             break;
 272
 273         case SYS_USB_CONNECTED:
 274             rb->plugin_unregister_timer();
 275             rb->usb_screen();
 276             return PLUGIN_USB_CONNECTED;
 277         }
 278     }
 279 }
 280 #endif /* #ifndef SIMULATOR */