summaryrefslogtreecommitdiffstats
path: root/apps/plugins/rockboy/menu.c
blob: ab27f3deceb01329f398dcd5737ff96a173c19f9 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
/*********************************************************************/
/* menu.c - user menu for rockboy                                    */
/*                                                                   */
/* Note: this file only exposes one function: do_user_menu().        */
/*********************************************************************/

#include "lib/helper.h"
#include "button.h"
#include "rockmacros.h"
#include "mem.h"
#include "save.h"
#include "rtc-gb.h"
#include "pcm.h"

#define SLOT_COUNT  50
#define DESC_SIZE   20

/* load/save state function declarations */
static void do_opt_menu(void);
static void do_slot_menu(bool is_load);
static void munge_name(char *buf, size_t bufsiz);

/* directory ROM save slots belong in */
#define STATE_DIR ROCKBOX_DIR "/rockboy"

static int getbutton(char *text)
{
    int fw, fh;
    int button;
    rb->lcd_clear_display();
    rb->font_getstringsize(text, &fw, &fh,0);
    rb->lcd_putsxy(LCD_WIDTH/2-fw/2, LCD_HEIGHT/2-fh/2, text);
    rb->lcd_update();
    rb->sleep(30);

    while (rb->button_get(false) != BUTTON_NONE)
        rb->yield();

    while(true)
    {
        button = rb->button_get(true);
        button = button&(BUTTON_MAIN|BUTTON_REMOTE);

        return button;
    }
}

static void setupkeys(void)
{
    options.UP      = getbutton("Press Up");
    options.DOWN    = getbutton("Press Down");
    options.LEFT    = getbutton("Press Left");
    options.RIGHT   = getbutton("Press Right");

    options.A       = getbutton("Press A");
    options.B       = getbutton("Press B");

    options.START   = getbutton("Press Start");
    options.SELECT  = getbutton("Press Select");

    options.MENU    = getbutton("Press Menu");
}

/*
 * do_user_menu - create the user menu on the screen.
 *
 * Returns USER_MENU_QUIT if the user selected "quit", otherwise 
 * returns zero.
 */
int do_user_menu(void) {
    bool done=false;
    int selected=0, ret=0;
    int result;
    int time = 0;
    
#if CONFIG_RTC    
    time = rb->mktime(rb->get_time());
#endif

#if defined(HAVE_LCD_MODES) && (HAVE_LCD_MODES & LCD_MODE_PAL256)
    rb->lcd_set_mode(LCD_MODE_RGB565);
#endif

    backlight_use_settings();

    /* Clean out the button Queue */
    while (rb->button_get(false) != BUTTON_NONE) 
        rb->yield();

    MENUITEM_STRINGLIST(menu, "Rockboy Menu", NULL,
                        "Load Game", "Save Game",
                        "Options", "Quit");

    rockboy_pcm_init();

    while(!done)
    {
        result = rb->do_menu(&menu, &selected, NULL, false);

        switch (result)
        {
            case 0: /* Load Game */
                do_slot_menu(true);
                break;
            case 1: /* Save Game */
                do_slot_menu(false);
                break;
            case 2: /* Options */
                do_opt_menu();
                break;
            case 3: /* Quit */
                ret = USER_MENU_QUIT;
                done=true;
                break;
            default:
                done=true;
                break;
        }
    }

    rb->lcd_setfont(0); /* Reset the font */
    rb->lcd_clear_display(); /* Clear display for screen size changes */
    
    /* Keep the RTC in sync */
#if CONFIG_RTC
    time = (rb->mktime(rb->get_time()) - time) * 60;
#endif
    while (time-- > 0) rtc_tick();

#if defined(HAVE_LCD_MODES) && (HAVE_LCD_MODES & LCD_MODE_PAL256)
    rb->lcd_set_mode(LCD_MODE_PAL256);
#endif

    /* ignore backlight time out */
    backlight_force_on();

    return ret;
}

/*
 * munge_name - munge a string into a filesystem-safe name
 */
static void munge_name(char *buf, const size_t bufsiz) {
    unsigned int i, max;

    /* check strlen */
    max = strlen(buf);
    max = (max < bufsiz) ? max : bufsiz;
  
    /* iterate over characters and munge them (if necessary) */
    for (i = 0; i < max; i++)
        if (!isalnum(buf[i]))
            buf[i] = '_';
}

/*
 * build_slot_path - build a path to an slot state file for this rom
 *
 * Note: uses rom.name.  Is there a safer way of doing this?  Like a ROM
 * checksum or something like that?
 */
static void build_slot_path(char *buf, size_t bufsiz, int slot_id) {
    char name_buf[17];

    /* munge state file name */
    strlcpy(name_buf, rom.name, sizeof(name_buf));
    munge_name(name_buf, strlen(name_buf));

    /* glom the whole mess together */
    snprintf(buf, bufsiz, "%s/%s-%d.rbs", STATE_DIR, name_buf, slot_id + 1);
}

/*
 * do_file - load or save game data in the given file
 *
 * Returns true on success and false on failure.
 *
 * @desc is a brief user-provided description of the state.
 * If no description is provided, set @desc to NULL.
 *
 */
static bool do_file(char *path, char *desc, bool is_load) {
    char desc_buf[DESC_SIZE];
    int fd, file_mode;
    
    /* set file mode */
    file_mode = is_load ? O_RDONLY : (O_WRONLY | O_CREAT);
  
    /* attempt to open file descriptor here */
    if ((fd = open(path, file_mode, 0666)) < 0)
        return false;

    /* load/save state */
    if (is_load)
    {
        /* load description */
        read(fd, desc_buf, sizeof(desc_buf));
    
        /* load state */
        loadstate(fd);
    
        /* print out a status message so the user knows the state loaded */
        rb->splashf(HZ * 1, "Loaded state from \"%s\"", path);
    }
    else
    {
        /* build description buffer */
        memset(desc_buf, 0, sizeof(desc_buf));
        if (desc)
            strlcpy(desc_buf, desc, sizeof(desc_buf));

        /* save state */
        write(fd, desc_buf, sizeof(desc_buf));
        savestate(fd);
    }
    
    /* close file descriptor */
    close(fd);

    /* return true (for success) */
    return true;
}

/* 
 * get information on the given slot
 */
static void slot_info(char *info_buf, size_t info_bufsiz, int slot_id,
                        bool number) {
    char buf[256];
    int fd;

    /* get slot file path */
    build_slot_path(buf, sizeof(buf), slot_id);

    /* attempt to open slot */
    if ((fd = open(buf, O_RDONLY)) >= 0)
    {
        /* this slot has a some data in it, read it */
        if (read(fd, buf, DESC_SIZE) == DESC_SIZE)
        {
            buf[DESC_SIZE] = '\0';
            strlcpy(info_buf, buf, info_bufsiz);
        }
        else if(number)
            strlcpy(info_buf, "ERROR", info_bufsiz);

        close(fd);
    }
    else if(number)
    {
        /* if we couldn't open the file, then the slot is empty */
        strlcpy(info_buf, "<Empty>", info_bufsiz);
    }
}

/*
 * do_slot - load or save game data in the given slot
 *
 * Returns true on success and false on failure.
 */
static bool do_slot(int slot_id, bool is_load) {
    char path_buf[256], desc_buf[DESC_SIZE];
  
    /* build slot filename, clear desc buf */
    build_slot_path(path_buf, sizeof(path_buf), slot_id);
    memset(desc_buf, 0, sizeof(desc_buf));

    /* if we're saving to a slot, then get a brief description */
    if (!is_load)
    {
        slot_info(desc_buf, sizeof(desc_buf), slot_id, false);
        if ( rb->kbd_input(desc_buf, sizeof(desc_buf)) < 0 )
            return false;
        if ( !strlen(desc_buf) )
            strlcpy(desc_buf, "Untitled", sizeof(desc_buf));
    }

    /* load/save file */
    return do_file(path_buf, desc_buf, is_load);
}

/* 
 * slot_get_name
 */
static const char* slot_get_name(int selected_item, void * data,
                                 char * buffer, size_t buffer_len)
{
    const char (*items)[DESC_SIZE] = data;
    snprintf(buffer, buffer_len, "%d. %s",
                selected_item + 1, items[selected_item]);
    return buffer;
}

/*
 * list_action_callback
 */
static int list_action_callback(int action, struct gui_synclist *lists)
{
    (void) lists;
    if (action == ACTION_STD_OK)
        return ACTION_STD_CANCEL;
    return action;
}

/*
 * do_slot_menu - prompt the user for a load/save memory slot
 */
static void do_slot_menu(bool is_load) {
    bool done=false;
    char items[SLOT_COUNT][DESC_SIZE];
    int result;
    int i;
    struct simplelist_info info;

    /* create menu items */
    for (i = 0; i < SLOT_COUNT; i++)
        slot_info(items[i], sizeof(*items), i, true);

    rb->simplelist_info_init(&info, NULL, SLOT_COUNT, (void *)items);
    info.get_name = slot_get_name;
    info.action_callback = list_action_callback;

    while(!done)
    {
        if(rb->simplelist_show_list(&info))
            break;

        result = info.selection;
        if (result<SLOT_COUNT && result >= 0 )
            done = do_slot(result, is_load);
        else
            done = true;
    }
}

static void do_opt_menu(void)
{
    bool done=false;
    int selected=0;
    int result;

    static const struct opt_items onoff[2] = {
        { "Off", -1 },
        { "On" , -1 },
    };

    static const struct opt_items frameskip[]= {
        { "0 Max", -1 },
        { "1 Max", -1 },
        { "2 Max", -1 },
        { "3 Max", -1 },
        { "4 Max", -1 },
        { "5 Max", -1 },
        { "6 Max", -1 },
    };
    
#ifdef HAVE_LCD_COLOR
    static const struct opt_items rotate[] = {
        { "No rotation", -1 },
        { "Rotate Right" , -1 },
        { "Rotate Left" , -1 },
    };

    static const struct opt_items scaling[]= {
        { "Scaled", -1 },
        { "Scaled - Maintain Ratio", -1 },
#if (LCD_WIDTH>=160) && (LCD_HEIGHT>=144)
        { "Unscaled", -1 },
#endif
    };

    static const struct opt_items palette[]= {
        { "Brown (Default)", -1 },
        { "Gray", -1 },
        { "Light Gray", -1 },
        { "Multi-Color 1", -1 },
        { "Multi-Color 2", -1 },
        { "Adventure Island", -1 },
        { "Adventure Island 2", -1 },
        { "Balloon Kid", -1 },
        { "Batman", -1 },
        { "Batman: Return of Joker", -1 },
        { "Bionic Commando", -1 },
        { "Castlvania Adventure", -1 },
        { "Donkey Kong Land", -1 },
        { "Dr. Mario", -1 },
        { "Kirby", -1 },
        { "Metroid", -1 },
        { "Zelda", -1 },
    };
#endif

    MENUITEM_STRINGLIST(menu, "Options", NULL,
                        "Max Frameskip", "Sound", "Volume", "Stats", "Set Keys (Buggy)",
#ifdef HAVE_LCD_COLOR
                        "Screen Size", "Screen Rotate", "Set Palette",
#endif
                        );

    options.dirty=1; /* Assume that the settings have been changed */

    struct viewport *parentvp = NULL;
    const struct settings_list* vol = rb->find_setting(&rb->global_settings->volume, NULL);

    while(!done)
    {
        result = rb->do_menu(&menu, &selected, NULL, false);

        switch (result)
        {
            case 0: /* Frameskip */
                rb->set_option("Max Frameskip", &options.maxskip, INT, frameskip, 
                    sizeof(frameskip)/sizeof(*frameskip), NULL );
                break;
            case 1: /* Sound */
                if(options.sound>1) options.sound=1;
                rb->set_option("Sound", &options.sound, INT, onoff, 2, NULL );
                if(options.sound) sound_dirty();
                break;
            case 2: /* Volume */
                rb->option_screen((struct settings_list*)vol, parentvp, false, "Volume");
                break;
            case 3: /* Stats */
                rb->set_option("Stats", &options.showstats, INT, onoff, 2, NULL );
                break;
            case 4: /* Keys */
                setupkeys();
                break;
#ifdef HAVE_LCD_COLOR
            case 5: /* Screen Size */
                rb->set_option("Screen Size", &options.scaling, INT, scaling,
                    sizeof(scaling)/sizeof(*scaling), NULL );
                setvidmode();
                break;
            case 6: /* Screen rotate */
                rb->set_option("Screen Rotate", &options.rotate, INT, rotate,
                    sizeof(rotate)/sizeof(*rotate), NULL );
                setvidmode();
                break;
            case 7: /* Palette */
                rb->set_option("Set Palette", &options.pal, INT, palette, 17, NULL );
                set_pal();
                break;
#endif
            default:
                done=true;
                break;
        }
    }
}