apps/plugins/rockboy/rockboy.c

   1 /***************************************************************************
   2  *             __________               __   ___.
   3  *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
   4  *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
   5  *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
   6  *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
   7  *                     \/            \/     \/    \/            \/
   8  * $Id$
   9  *
  10  * Gameboy emulator based on gnuboy
  11  *
  12  * This program is free software; you can redistribute it and/or
  13  * modify it under the terms of the GNU General Public License
  14  * as published by the Free Software Foundation; either version 2
  15  * of the License, or (at your option) any later version.
  16  *
  17  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
  18  * KIND, either express or implied.
  19  *
  20  ****************************************************************************/
  21 #include "plugin.h"
  22 #include "loader.h"
  23 #include "rockmacros.h"
  24 #include "input.h"
  25 #include "emu.h"
  26 #include "hw.h"
  27 #include "pcm.h"
  28
  29 PLUGIN_HEADER
  30 PLUGIN_IRAM_DECLARE
  31
  32 int shut,cleanshut;
  33 char *errormsg;
  34
  35 #define optionname "options"
  36
  37 void die(char *message, ...)
  38 {
  39     shut=1;
  40     errormsg=message;
  41 }
  42
  43 struct options options;
  44
  45 void *audio_bufferbase;
  46 void *audio_bufferpointer;
  47 size_t audio_buffer_free;
  48
  49 void *my_malloc(size_t size)
  50 {
  51     void *alloc;
  52
  53     if (size + 4 > audio_buffer_free)
  54         return 0;
  55     alloc = audio_bufferpointer;
  56     audio_bufferpointer += size + 4;
  57     audio_buffer_free -= size + 4;
  58     return alloc;
  59 }
  60
  61 static void setoptions (void)
  62 {
  63    int fd;
  64    DIR* dir;
  65    char optionsave[sizeof(savedir)+sizeof(optionname)];
  66
  67     dir=rb->opendir(savedir);
  68     if(!dir)
  69       rb->mkdir(savedir);
  70     else
  71       rb->closedir(dir);
  72
  73    snprintf(optionsave, sizeof(optionsave), "%s/%s", savedir, optionname);
  74
  75     fd = open(optionsave, O_RDONLY);
  76     if(fd < 0) /* no options to read, set defaults */
  77     {
  78 #ifdef HAVE_TOUCHSCREEN
  79         options.LEFT=BUTTON_MIDLEFT;
  80         options.RIGHT=BUTTON_MIDRIGHT;
  81 #else
  82         options.LEFT=BUTTON_LEFT;
  83         options.RIGHT=BUTTON_RIGHT;
  84 #endif
  85
  86 #if CONFIG_KEYPAD == IRIVER_H100_PAD
  87         options.UP=BUTTON_UP;
  88         options.DOWN=BUTTON_DOWN;
  89
  90         options.A=BUTTON_ON;
  91         options.B=BUTTON_OFF;
  92         options.START=BUTTON_REC;
  93         options.SELECT=BUTTON_SELECT;
  94         options.MENU=BUTTON_MODE;
  95
  96 #elif CONFIG_KEYPAD == IRIVER_H300_PAD
  97         options.UP=BUTTON_UP;
  98         options.DOWN=BUTTON_DOWN;
  99
 100         options.A=BUTTON_REC;
 101         options.B=BUTTON_MODE;
 102         options.START=BUTTON_ON;
 103         options.SELECT=BUTTON_SELECT;
 104         options.MENU=BUTTON_OFF;
 105
 106 #elif CONFIG_KEYPAD == RECORDER_PAD
 107         options.UP=BUTTON_UP;
 108         options.DOWN=BUTTON_DOWN;
 109
 110         options.A=BUTTON_F1;
 111         options.B=BUTTON_F2;
 112         options.START=BUTTON_F3;
 113         options.SELECT=BUTTON_PLAY;
 114         options.MENU=BUTTON_OFF;
 115
 116 #elif CONFIG_KEYPAD == IPOD_4G_PAD
 117         options.UP=BUTTON_MENU;
 118         options.DOWN=BUTTON_PLAY;
 119
 120         options.A=BUTTON_NONE;
 121         options.B=BUTTON_NONE;
 122         options.START=BUTTON_SELECT;
 123         options.SELECT=BUTTON_NONE;
 124         options.MENU=(BUTTON_SELECT | BUTTON_REPEAT);
 125
 126 #elif CONFIG_KEYPAD == IRIVER_IFP7XX_PAD
 127         options.UP=BUTTON_UP;
 128         options.DOWN=BUTTON_DOWN;
 129
 130         options.A=BUTTON_PLAY;
 131         options.B=BUTTON_EQ;
 132         options.START=BUTTON_MODE;
 133         options.SELECT=(BUTTON_SELECT | BUTTON_REL);
 134         options.MENU=(BUTTON_SELECT | BUTTON_REPEAT);
 135
 136 #elif CONFIG_KEYPAD == GIGABEAT_PAD
 137         options.UP=BUTTON_UP;
 138         options.DOWN=BUTTON_DOWN;
 139
 140         options.A=BUTTON_VOL_UP;
 141         options.B=BUTTON_VOL_DOWN;
 142         options.START=BUTTON_A;
 143         options.SELECT=BUTTON_SELECT;
 144         options.MENU=BUTTON_MENU;
 145
 146 #elif CONFIG_KEYPAD == SANSA_E200_PAD
 147         options.UP=BUTTON_UP;
 148         options.DOWN=BUTTON_DOWN;
 149
 150         options.A=BUTTON_SELECT;
 151         options.B=BUTTON_REC;
 152         options.START=BUTTON_SCROLL_BACK;
 153         options.SELECT=BUTTON_SCROLL_FWD;
 154         options.MENU=BUTTON_POWER;
 155
 156 #elif CONFIG_KEYPAD == SANSA_FUZE_PAD
 157         options.UP=BUTTON_UP;
 158         options.DOWN=BUTTON_DOWN;
 159
 160         options.A=BUTTON_SELECT;
 161         options.B=BUTTON_LEFT;
 162         options.START=BUTTON_SCROLL_BACK;
 163         options.SELECT=BUTTON_SCROLL_FWD;
 164         options.MENU=BUTTON_HOME;
 165
 166 #elif CONFIG_KEYPAD == SANSA_C200_PAD
 167         options.UP=BUTTON_UP;
 168         options.DOWN=BUTTON_DOWN;
 169
 170         options.A=BUTTON_SELECT;
 171         options.B=BUTTON_REC;
 172         options.START=BUTTON_VOL_DOWN;
 173         options.SELECT=BUTTON_VOL_UP;
 174         options.MENU=BUTTON_POWER;
 175
 176 #elif CONFIG_KEYPAD == IAUDIO_X5M5_PAD
 177         options.UP=BUTTON_UP;
 178         options.DOWN=BUTTON_DOWN;
 179
 180         options.A=BUTTON_PLAY;
 181         options.B=BUTTON_REC;
 182         options.START=BUTTON_SELECT;
 183         options.SELECT=BUTTON_NONE;
 184         options.MENU=BUTTON_POWER;
 185
 186 #elif CONFIG_KEYPAD == IRIVER_H10_PAD
 187         options.UP=BUTTON_SCROLL_UP;
 188         options.DOWN=BUTTON_SCROLL_DOWN;
 189
 190         options.A=BUTTON_PLAY;
 191         options.B=BUTTON_FF;
 192         options.START=BUTTON_REW;
 193         options.SELECT=BUTTON_NONE;
 194         options.MENU=BUTTON_POWER;
 195
 196 #elif CONFIG_KEYPAD == MROBE500_PAD
 197         options.UP=BUTTON_RC_PLAY;
 198         options.DOWN=BUTTON_RC_DOWN;
 199         options.LEFT=BUTTON_RC_REW;
 200         options.RIGHT=BUTTON_RC_FF;
 201
 202         options.A=BUTTON_RC_VOL_DOWN;
 203         options.B=BUTTON_RC_VOL_UP;
 204         options.START=BUTTON_RC_HEART;
 205         options.SELECT=BUTTON_RC_MODE;
 206         options.MENU=BUTTON_POWER;
 207
 208 #elif CONFIG_KEYPAD == COWOND2_PAD
 209         options.A=BUTTON_PLUS;
 210         options.B=BUTTON_MINUS;
 211         options.MENU=BUTTON_MENU;
 212
 213 #elif CONFIG_KEYPAD == GIGABEAT_S_PAD
 214         options.UP=BUTTON_UP;
 215         options.DOWN=BUTTON_DOWN;
 216
 217         options.A=BUTTON_VOL_UP;
 218         options.B=BUTTON_VOL_DOWN;
 219         options.START=BUTTON_PLAY;
 220         options.SELECT=BUTTON_SELECT;
 221         options.MENU=BUTTON_MENU;
 222 #elif CONFIG_KEYPAD == CREATIVEZVM_PAD
 223         options.UP=BUTTON_UP;
 224         options.DOWN=BUTTON_DOWN;
 225
 226         options.A=BUTTON_CUSTOM;
 227         options.B=BUTTON_PLAY;
 228         options.START=BUTTON_BACK;
 229         options.SELECT=BUTTON_SELECT;
 230         options.MENU=BUTTON_MENU;
 231
 232 #elif CONFIG_KEYPAD == PHILIPS_HDD1630_PAD
 233         options.UP=BUTTON_UP;
 234         options.DOWN=BUTTON_DOWN;
 235
 236         options.A=BUTTON_VOL_UP;
 237         options.B=BUTTON_VOL_DOWN;
 238         options.START=BUTTON_VIEW;
 239         options.SELECT=BUTTON_SELECT;
 240         options.MENU=BUTTON_MENU;
 241
 242 #elif CONFIG_KEYPAD == ONDAVX747_PAD
 243         options.A=BUTTON_VOL_UP;
 244         options.B=BUTTON_VOL_DOWN;
 245         options.MENU=BUTTON_MENU;
 246 #else
 247 #error No Keymap Defined!
 248 #endif
 249
 250 #ifdef HAVE_TOUCHSCREEN
 251         options.UP=BUTTON_TOPMIDDLE;
 252         options.DOWN=BUTTON_BOTTOMMIDDLE;
 253         options.START=BUTTON_TOPRIGHT;
 254         options.SELECT=BUTTON_CENTER;
 255 #if CONFIG_KEYPAD != COWOND2_PAD
 256         options.A=BUTTON_BOTTOMLEFT;
 257         options.B=BUTTON_BOTTOMRIGHT;
 258         options.MENU=BUTTON_TOPLEFT;
 259 #endif
 260 #endif
 261
 262       options.maxskip=4;
 263       options.fps=0;
 264       options.showstats=0;
 265 #if (LCD_WIDTH>=160) && (LCD_HEIGHT>=144)
 266       options.scaling=0;
 267 #else
 268       options.scaling=1;
 269 #endif
 270       options.sound=1;
 271       options.pal=0;
 272    }
 273    else
 274       read(fd,&options, sizeof(options));
 275
 276     close(fd);
 277 }
 278
 279 static void savesettings(void)
 280 {
 281     int fd;
 282     char optionsave[sizeof(savedir)+sizeof(optionname)];
 283
 284     if(options.dirty)
 285     {
 286         options.dirty=0;
 287         snprintf(optionsave, sizeof(optionsave), "%s/%s", savedir, optionname);
 288         fd = open(optionsave, O_WRONLY|O_CREAT|O_TRUNC);
 289         write(fd,&options, sizeof(options));
 290         close(fd);
 291     }
 292 }
 293
 294 void doevents(void)
 295 {
 296     event_t ev;
 297     int st;
 298
 299     ev_poll();
 300     while (ev_getevent(&ev))
 301     {
 302         if (ev.type != EV_PRESS && ev.type != EV_RELEASE)
 303             continue;
 304         st = (ev.type != EV_RELEASE);
 305         pad_set(ev.code, st);
 306     }
 307 }
 308
 309 static int gnuboy_main(const char *rom)
 310 {
 311     rb->lcd_puts(0,0,"Init video");
 312     vid_init();
 313     rb->lcd_puts(0,1,"Init sound");
 314     pcm_init();
 315     rb->lcd_puts(0,2,"Loading rom");
 316     loader_init(rom);
 317     if(shut)
 318         return PLUGIN_ERROR;
 319     rb->lcd_puts(0,3,"Emu reset");
 320     emu_reset();
 321     rb->lcd_puts(0,4,"Emu run");
 322     rb->lcd_clear_display();
 323     rb->lcd_update();
 324     emu_run();
 325
 326     /* never reached */
 327     return PLUGIN_OK;
 328 }
 329
 330 /* this is the plugin entry point */
 331 enum plugin_status plugin_start(const void* parameter)
 332 {
 333     PLUGIN_IRAM_INIT(rb)
 334
 335     rb->lcd_setfont(0);
 336
 337     rb->lcd_clear_display();
 338
 339     if (!parameter)
 340     {
 341         rb->splash(HZ*3, "Play gameboy ROM file! (.gb/.gbc)");
 342         return PLUGIN_OK;
 343     }
 344     if(rb->audio_status())
 345     {
 346         audio_bufferbase = audio_bufferpointer
 347             = rb->plugin_get_buffer(&audio_buffer_free);
 348         plugbuf=true;
 349     }
 350     else
 351     {
 352         audio_bufferbase = audio_bufferpointer
 353             = rb->plugin_get_audio_buffer(&audio_buffer_free);
 354         plugbuf=false;
 355     }
 356 #if MEM <= 8 && !defined(SIMULATOR)
 357     /* loaded as an overlay plugin, protect from overwriting ourselves */
 358     if ((unsigned)(plugin_start_addr - (unsigned char *)audio_bufferbase)
 359         < audio_buffer_free)
 360         audio_buffer_free = plugin_start_addr - (unsigned char *)audio_bufferbase;
 361 #endif
 362     setoptions();
 363
 364     shut=0;
 365     cleanshut=0;
 366
 367 #ifdef HAVE_WHEEL_POSITION
 368     rb->wheel_send_events(false);
 369 #endif
 370
 371     gnuboy_main(parameter);
 372
 373 #ifdef HAVE_WHEEL_POSITION
 374     rb->wheel_send_events(true);
 375 #endif
 376
 377     if(shut&&!cleanshut)
 378     {
 379         rb->splash(HZ/2, errormsg);
 380         return PLUGIN_ERROR;
 381     }
 382     if(!rb->audio_status())
 383         pcm_close();
 384     rb->splash(HZ/2, "Closing Rockboy");
 385
 386     savesettings();
 387
 388     cleanup();
 389
 390     return PLUGIN_OK;
 391 }