apps/plugins/snow.c

   1 /***************************************************************************
   2  *             __________               __   ___.
   3  *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
   4  *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
   5  *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
   6  *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
   7  *                     \/            \/     \/    \/            \/
   8  * $Id$
   9  *
  10  * Copyright (C) 2002 Itai Shaked
  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 #include "playergfx.h"
  21
  22 PLUGIN_HEADER
  23
  24 #ifdef HAVE_LCD_BITMAP
  25 #define NUM_PARTICLES (LCD_WIDTH * LCD_HEIGHT / 72)
  26 #define SNOW_HEIGHT LCD_HEIGHT
  27 #define SNOW_WIDTH LCD_WIDTH
  28 #define MYLCD(fn) rb->lcd_ ## fn
  29 #else
  30 #define NUM_PARTICLES 10
  31 #define SNOW_HEIGHT 14
  32 #define SNOW_WIDTH 20
  33 #define MYLCD(fn) pgfx_ ## fn
  34 #endif
  35
  36 /* variable button definitions */
  37 #if CONFIG_KEYPAD == PLAYER_PAD
  38 #define SNOW_QUIT BUTTON_STOP
  39 #elif (CONFIG_KEYPAD == IPOD_4G_PAD) || \
  40       (CONFIG_KEYPAD == IPOD_3G_PAD) || \
  41       (CONFIG_KEYPAD == IPOD_1G2G_PAD)
  42 #define SNOW_QUIT BUTTON_MENU
  43 #elif CONFIG_KEYPAD == IRIVER_IFP7XX_PAD
  44 #define SNOW_QUIT BUTTON_PLAY
  45 #elif CONFIG_KEYPAD == IAUDIO_X5M5_PAD
  46 #define SNOW_QUIT BUTTON_POWER
  47 #elif CONFIG_KEYPAD == GIGABEAT_PAD
  48 #define SNOW_QUIT BUTTON_POWER
  49 #elif CONFIG_KEYPAD == SANSA_E200_PAD
  50 #define SNOW_QUIT BUTTON_POWER
  51 #elif CONFIG_KEYPAD == IRIVER_H10_PAD
  52 #define SNOW_QUIT BUTTON_POWER
  53 #else
  54 #define SNOW_QUIT BUTTON_OFF
  55 #if (CONFIG_KEYPAD == IRIVER_H100_PAD) || (CONFIG_KEYPAD == IRIVER_H300_PAD)
  56 #define SNOW_RC_QUIT BUTTON_RC_STOP
  57 #endif
  58 #endif
  59
  60 static short particles[NUM_PARTICLES][2];
  61 static struct plugin_api* rb;
  62
  63 #ifdef HAVE_LCD_BITMAP
  64 #if LCD_WIDTH >= 160
  65 #define FLAKE_WIDTH 5
  66 static const unsigned char flake[] = {0x0a,0x04,0x1f,0x04,0x0a};
  67 #else
  68 #define FLAKE_WIDTH 3
  69 static const unsigned char flake[] = {0x02,0x07,0x02};
  70 #endif
  71 #endif
  72
  73 static bool particle_exists(int particle)
  74 {
  75     if (particles[particle][0]>=0 && particles[particle][1]>=0 &&
  76         particles[particle][0]<SNOW_WIDTH && particles[particle][1]<SNOW_HEIGHT)
  77         return true;
  78     else
  79         return false;
  80 }
  81
  82 static int create_particle(void)
  83 {
  84     int i;
  85
  86     for (i=0; i<NUM_PARTICLES; i++) {
  87         if (!particle_exists(i)) {
  88             particles[i][0]=(rb->rand()%SNOW_WIDTH);
  89             particles[i][1]=0;
  90             return i;
  91         }
  92     }
  93     return -1;
  94 }
  95
  96 static void snow_move(void)
  97 {
  98     int i;
  99
 100     if (!(rb->rand()%2))
 101         create_particle();
 102
 103     for (i=0; i<NUM_PARTICLES; i++) {
 104         if (particle_exists(i)) {
 105             MYLCD(set_drawmode)(DRMODE_SOLID|DRMODE_INVERSEVID);
 106 #ifdef HAVE_LCD_BITMAP
 107             rb->lcd_fillrect(particles[i][0],particles[i][1],
 108                              FLAKE_WIDTH,FLAKE_WIDTH);
 109 #else
 110             pgfx_drawpixel(particles[i][0],particles[i][1]);
 111 #endif
 112             MYLCD(set_drawmode)(DRMODE_SOLID);
 113 #ifdef HAVE_REMOTE_LCD
 114             if (particles[i][0] <= LCD_REMOTE_WIDTH
 115                     && particles[i][1] <= LCD_REMOTE_HEIGHT) {
 116                 rb->lcd_remote_set_drawmode(DRMODE_SOLID|DRMODE_INVERSEVID);
 117                 rb->lcd_remote_fillrect(particles[i][0],particles[i][1],
 118                                         FLAKE_WIDTH,FLAKE_WIDTH);
 119                 rb->lcd_remote_set_drawmode(DRMODE_SOLID);
 120             }
 121 #endif
 122             switch ((rb->rand()%7)) {
 123                 case 0:
 124                     particles[i][0]++;
 125                     break;
 126
 127                 case 1:
 128                     particles[i][0]--;
 129                     break;
 130
 131                 case 2:
 132                     break;
 133
 134                 default:
 135                     particles[i][1]++;
 136                     break;
 137             }
 138             if (particle_exists(i))
 139 #ifdef HAVE_LCD_BITMAP
 140                 rb->lcd_mono_bitmap(flake,particles[i][0],particles[i][1],
 141                                     FLAKE_WIDTH,FLAKE_WIDTH);
 142 #else
 143                 pgfx_drawpixel(particles[i][0],particles[i][1]);
 144 #endif
 145 #ifdef HAVE_REMOTE_LCD
 146             if (particles[i][0] <= LCD_REMOTE_WIDTH
 147                     && particles[i][1] <= LCD_REMOTE_HEIGHT) {
 148                 rb->lcd_remote_mono_bitmap(flake,particles[i][0],particles[i][1],
 149                                            FLAKE_WIDTH,FLAKE_WIDTH);
 150             }
 151 #endif
 152         }
 153     }
 154 }
 155
 156
 157 static void snow_init(void)
 158 {
 159     int i;
 160
 161     for (i=0; i<NUM_PARTICLES; i++) {
 162         particles[i][0]=-1;
 163         particles[i][1]=-1;
 164     }
 165 #ifdef HAVE_LCD_CHARCELLS
 166     pgfx_display(0, 0); /* display three times */
 167     pgfx_display(4, 0);
 168     pgfx_display(8, 0);
 169 #endif
 170     MYLCD(clear_display)();
 171 #ifdef HAVE_REMOTE_LCD
 172     rb->lcd_remote_clear_display();
 173 #endif
 174 }
 175
 176 enum plugin_status plugin_start(struct plugin_api* api, void* parameter)
 177 {
 178     int button;
 179     (void)(parameter);
 180     rb = api;
 181
 182 #ifdef HAVE_LCD_CHARCELLS
 183     if (!pgfx_init(rb, 4, 2))
 184     {
 185         rb->splash(HZ*2, "Old LCD :(");
 186         return PLUGIN_OK;
 187     }
 188 #endif
 189     snow_init();
 190     while (1) {
 191         snow_move();
 192         MYLCD(update)();
 193 #ifdef HAVE_REMOTE_LCD
 194         rb->lcd_remote_update();
 195 #endif
 196         rb->sleep(HZ/20);
 197
 198         button = rb->button_get(false);
 199
 200         if (button == SNOW_QUIT
 201 #ifdef SNOW_RC_QUIT
 202         || button == SNOW_RC_QUIT
 203 #endif
 204         )
 205         {
 206 #ifdef HAVE_LCD_CHARCELLS
 207             pgfx_release();
 208 #endif
 209             return PLUGIN_OK;
 210         }
 211         else
 212             if (rb->default_event_handler(button) == SYS_USB_CONNECTED)
 213             {
 214 #ifdef HAVE_LCD_CHARCELLS
 215                 pgfx_release();
 216 #endif
 217                 return PLUGIN_USB_CONNECTED;
 218             }
 219     }
 220 }
 221