1 /*
2  * (C) Gražvydas "notaz" Ignotas, 2006-2012
3  *
4  * This work is licensed under the terms of any of these licenses
5  * (at your option):
6  *  - GNU GPL, version 2 or later.
7  *  - GNU LGPL, version 2.1 or later.
8  *  - MAME license.
9  * See the COPYING file in the top-level directory.
10  */
11 
12 #include <stdio.h>
13 #include <string.h>
14 #include <stdlib.h>
15 #include <stdarg.h>
16 #include <time.h>
17 #include <locale.h> // savestate date
18 
19 #include "menu.h"
20 #include "fonts.h"
21 #include "readpng.h"
22 #include "lprintf.h"
23 #include "input.h"
24 #include "plat.h"
25 #include "posix.h"
26 
27 #if defined(__GNUC__) && __GNUC__ >= 7
28 #pragma GCC diagnostic ignored "-Wformat-truncation"
29 #endif
30 
31 static char static_buff[64];
32 static int  menu_error_time = 0;
33 char menu_error_msg[64] = { 0, };
34 // g_menuscreen is the current output buffer the menu is rendered to.
35 void *g_menuscreen_ptr;
36 // g_menubg is the menu background and has the same w/h as g_menuscreen, but
37 // pp=w. It is filled on menu entry from file or from g_menubg_src if available.
38 void *g_menubg_ptr;
39 // g_menubg_src points to a buffer containing a bg image. This is usually either
40 // the emulator screen buffer or the host frame buffer.
41 void *g_menubg_src_ptr;
42 
43 int g_menuscreen_w;
44 int g_menuscreen_h;
45 int g_menuscreen_pp;
46 int g_menubg_src_w;
47 int g_menubg_src_h;
48 int g_menubg_src_pp;
49 
50 int g_autostateld_opt;
51 
52 static unsigned char *menu_font_data = NULL;
53 static int menu_text_color = 0xfffe; // default to white
54 static int menu_sel_color = -1; // disabled
55 
56 /* note: these might become non-constant in future */
57 #if MENU_X2
58 static const int me_mfont_w = 16, me_mfont_h = 20;
59 static const int me_sfont_w = 12, me_sfont_h = 20;
60 #else
61 static const int me_mfont_w = 8, me_mfont_h = 10;
62 static const int me_sfont_w = 6, me_sfont_h = 10;
63 #endif
64 
65 static int g_menu_filter_off;
66 static int g_border_style;
67 static int border_left, border_right, border_top, border_bottom;
68 
menuscreen_memset_lines(unsigned short * dst,int c,int l)69 void menuscreen_memset_lines(unsigned short *dst, int c, int l)
70 {
71 	for (; l > 0; l--, dst += g_menuscreen_pp)
72 		memset(dst, c, g_menuscreen_w * 2);
73 }
74 
75 // draws text to current bbp16 screen
text_out16_(int x,int y,const char * text,int color)76 static void text_out16_(int x, int y, const char *text, int color)
77 {
78 	int i, lh, tr, tg, tb, len;
79 	unsigned short *dest = (unsigned short *)g_menuscreen_ptr + x + y * g_menuscreen_pp;
80 	tr = (color & 0xf800) >> 8;
81 	tg = (color & 0x07e0) >> 3;
82 	tb = (color & 0x001f) << 3;
83 
84 	if (text == (void *)1)
85 	{
86 		// selector symbol
87 		text = "";
88 		len = 1;
89 	}
90 	else
91 	{
92 		const char *p;
93 		for (p = text; *p != 0 && *p != '\n'; p++)
94 			;
95 		len = p - text;
96 	}
97 
98 	lh = me_mfont_h;
99 	if (y + lh > g_menuscreen_h)
100 		lh = g_menuscreen_h - y;
101 
102 	for (i = 0; i < len; i++)
103 	{
104 		unsigned char  *src = menu_font_data + (unsigned int)text[i] * me_mfont_w * me_mfont_h / 2;
105 		unsigned short *dst = dest;
106 		int u, l;
107 
108 		for (l = 0; l < lh; l++, dst += g_menuscreen_pp - me_mfont_w)
109 		{
110 			for (u = me_mfont_w / 2; u > 0; u--, src++)
111 			{
112 				int c, r, g, b;
113 				c = *src >> 4;
114 				r = (*dst & 0xf800) >> 8;
115 				g = (*dst & 0x07e0) >> 3;
116 				b = (*dst & 0x001f) << 3;
117 				r = (c^0xf)*r/15 + c*tr/15;
118 				g = (c^0xf)*g/15 + c*tg/15;
119 				b = (c^0xf)*b/15 + c*tb/15;
120 				*dst++ = ((r<<8)&0xf800) | ((g<<3)&0x07e0) | (b>>3);
121 				c = *src & 0xf;
122 				r = (*dst & 0xf800) >> 8;
123 				g = (*dst & 0x07e0) >> 3;
124 				b = (*dst & 0x001f) << 3;
125 				r = (c^0xf)*r/15 + c*tr/15;
126 				g = (c^0xf)*g/15 + c*tg/15;
127 				b = (c^0xf)*b/15 + c*tb/15;
128 				*dst++ = ((r<<8)&0xf800) | ((g<<3)&0x07e0) | (b>>3);
129 			}
130 		}
131 		dest += me_mfont_w;
132 	}
133 
134 	if (x < border_left)
135 		border_left = x;
136 	if (x + i * me_mfont_w > border_right)
137 		border_right = x + i * me_mfont_w;
138 	if (y < border_top)
139 		border_top = y;
140 	if (y + me_mfont_h > border_bottom)
141 		border_bottom = y + me_mfont_h;
142 }
143 
text_out16(int x,int y,const char * texto,...)144 void text_out16(int x, int y, const char *texto, ...)
145 {
146 	va_list args;
147 	char    buffer[256];
148 	int     maxw = (g_menuscreen_w - x) / me_mfont_w;
149 
150 	if (maxw < 0)
151 		return;
152 
153 	va_start(args, texto);
154 	vsnprintf(buffer, sizeof(buffer), texto, args);
155 	va_end(args);
156 
157 	if (maxw > sizeof(buffer) - 1)
158 		maxw = sizeof(buffer) - 1;
159 	buffer[maxw] = 0;
160 
161 	text_out16_(x,y,buffer,menu_text_color);
162 }
163 
164 /* draws in 6x8 font, might multiply size by integer */
smalltext_out16_(int x,int y,const char * texto,int color)165 static void smalltext_out16_(int x, int y, const char *texto, int color)
166 {
167 	unsigned char  *src;
168 	unsigned short *dst;
169 	int multiplier = me_sfont_w / 6;
170 	int i;
171 
172 	for (i = 0;; i++, x += me_sfont_w)
173 	{
174 		unsigned char c = (unsigned char) texto[i];
175 		int h = 8;
176 
177 		if (!c || c == '\n')
178 			break;
179 
180 		src = fontdata6x8[c];
181 		dst = (unsigned short *)g_menuscreen_ptr + x + y * g_menuscreen_pp;
182 
183 		while (h--)
184 		{
185 			int m, w2, h2;
186 			for (h2 = multiplier; h2 > 0; h2--)
187 			{
188 				for (m = 0x20; m; m >>= 1) {
189 					if (*src & m)
190 						for (w2 = multiplier; w2 > 0; w2--)
191 							*dst++ = color;
192 					else
193 						dst += multiplier;
194 				}
195 
196 				dst += g_menuscreen_pp - me_sfont_w;
197 			}
198 			src++;
199 		}
200 	}
201 }
202 
smalltext_out16(int x,int y,const char * texto,int color)203 static void smalltext_out16(int x, int y, const char *texto, int color)
204 {
205 	char buffer[128];
206 	int maxw = (g_menuscreen_w - x) / me_sfont_w;
207 
208 	if (maxw < 0)
209 		return;
210 
211 	strncpy(buffer, texto, sizeof(buffer));
212 	if (maxw > sizeof(buffer) - 1)
213 		maxw = sizeof(buffer) - 1;
214 	buffer[maxw] = 0;
215 
216 	smalltext_out16_(x, y, buffer, color);
217 }
218 
menu_draw_selection(int x,int y,int w)219 static void menu_draw_selection(int x, int y, int w)
220 {
221 	int i, h;
222 	unsigned short *dst, *dest;
223 
224 	text_out16_(x, y, (void *)1, (menu_sel_color < 0) ? menu_text_color : menu_sel_color);
225 
226 	if (menu_sel_color < 0) return; // no selection hilight
227 
228 	if (y > 0) y--;
229 	dest = (unsigned short *)g_menuscreen_ptr + x + y * g_menuscreen_pp + me_mfont_w * 2 - 2;
230 	for (h = me_mfont_h + 1; h > 0; h--)
231 	{
232 		dst = dest;
233 		for (i = w - (me_mfont_w * 2 - 2); i > 0; i--)
234 			*dst++ = menu_sel_color;
235 		dest += g_menuscreen_pp;
236 	}
237 }
238 
parse_hex_color(char * buff)239 static int parse_hex_color(char *buff)
240 {
241 	char *endp = buff;
242 	int t = (int) strtoul(buff, &endp, 16);
243 	if (endp != buff)
244 #ifdef PSP
245 		return ((t<<8)&0xf800) | ((t>>5)&0x07e0) | ((t>>19)&0x1f);
246 #else
247 		return ((t>>8)&0xf800) | ((t>>5)&0x07e0) | ((t>>3)&0x1f);
248 #endif
249 	return -1;
250 }
251 
tolower_simple(char c)252 static char tolower_simple(char c)
253 {
254 	if ('A' <= c && c <= 'Z')
255 		c = c - 'A' + 'a';
256 	return c;
257 }
258 
menu_init_base(void)259 void menu_init_base(void)
260 {
261 	int i, c, l, pos;
262 	unsigned char *fd, *fds;
263 	char buff[256];
264 	FILE *f;
265 
266 	if (menu_font_data != NULL)
267 		free(menu_font_data);
268 
269 	menu_font_data = calloc((MENU_X2 ? 256 * 320 : 128 * 160) / 2, 1);
270 	if (menu_font_data == NULL)
271 		return;
272 
273 	// generate default 8x10 font from fontdata8x8
274 	for (c = 0, fd = menu_font_data; c < 128; c++)
275 	{
276 		for (l = 0; l < 8; l++)
277 		{
278 			unsigned char fd8x8 = fontdata8x8[c*8+l];
279 			if (fd8x8&0x80) { *fd  = 0xf0; }
280 			if (fd8x8&0x40) { *fd |= 0x0f; }; fd++;
281 			if (fd8x8&0x20) { *fd  = 0xf0; }
282 			if (fd8x8&0x10) { *fd |= 0x0f; }; fd++;
283 			if (fd8x8&0x08) { *fd  = 0xf0; }
284 			if (fd8x8&0x04) { *fd |= 0x0f; }; fd++;
285 			if (fd8x8&0x02) { *fd  = 0xf0; }
286 			if (fd8x8&0x01) { *fd |= 0x0f; }; fd++;
287 		}
288 		fd += 8*2/2; // 2 empty lines
289 	}
290 
291 	if (MENU_X2) {
292 		// expand default font
293 		fds = menu_font_data + 128 * 160 / 2 - 4;
294 		fd  = menu_font_data + 256 * 320 / 2 - 1;
295 		for (c = 255; c >= 0; c--)
296 		{
297 			for (l = 9; l >= 0; l--, fds -= 4)
298 			{
299 				for (i = 3; i >= 0; i--) {
300 					int px = fds[i] & 0x0f;
301 					*fd-- = px | (px << 4);
302 					px = (fds[i] >> 4) & 0x0f;
303 					*fd-- = px | (px << 4);
304 				}
305 				for (i = 3; i >= 0; i--) {
306 					int px = fds[i] & 0x0f;
307 					*fd-- = px | (px << 4);
308 					px = (fds[i] >> 4) & 0x0f;
309 					*fd-- = px | (px << 4);
310 				}
311 			}
312 		}
313 	}
314 
315 	// load custom font and selector (stored as 1st symbol in font table)
316 	pos = plat_get_skin_dir(buff, sizeof(buff));
317 	strcpy(buff + pos, "font.png");
318 	readpng(menu_font_data, buff, READPNG_FONT,
319 		MENU_X2 ? 256 : 128, MENU_X2 ? 320 : 160);
320 	// default selector symbol is '>'
321 	memcpy(menu_font_data, menu_font_data + ((int)'>') * me_mfont_w * me_mfont_h / 2,
322 		me_mfont_w * me_mfont_h / 2);
323 	strcpy(buff + pos, "selector.png");
324 	readpng(menu_font_data, buff, READPNG_SELECTOR, me_mfont_w, me_mfont_h);
325 
326 	// load custom colors
327 	strcpy(buff + pos, "skin.txt");
328 	f = fopen(buff, "r");
329 	if (f != NULL)
330 	{
331 		lprintf("found skin.txt\n");
332 		while (!feof(f))
333 		{
334 			if (fgets(buff, sizeof(buff), f) == NULL)
335 				break;
336 			if (buff[0] == '#'  || buff[0] == '/')  continue; // comment
337 			if (buff[0] == '\r' || buff[0] == '\n') continue; // empty line
338 			if (strncmp(buff, "text_color=", 11) == 0)
339 			{
340 				int tmp = parse_hex_color(buff+11);
341 				if (tmp >= 0) menu_text_color = tmp;
342 				else lprintf("skin.txt: parse error for text_color\n");
343 			}
344 			else if (strncmp(buff, "selection_color=", 16) == 0)
345 			{
346 				int tmp = parse_hex_color(buff+16);
347 				if (tmp >= 0) menu_sel_color = tmp;
348 				else lprintf("skin.txt: parse error for selection_color\n");
349 			}
350 			else
351 				lprintf("skin.txt: parse error: %s\n", buff);
352 		}
353 		fclose(f);
354 	}
355 
356 	// use user's locale for savestate date display
357 	setlocale(LC_TIME, "");
358 }
359 
menu_darken_bg(void * dst,void * src,int pixels,int darker)360 static void menu_darken_bg(void *dst, void *src, int pixels, int darker)
361 {
362 	unsigned int *dest = dst;
363 	unsigned int *sorc = src;
364 	pixels /= 2;
365 	if (darker)
366 	{
367 		while (pixels--)
368 		{
369 			unsigned int p = *sorc++;
370 			*dest++ = ((p&0xf79ef79e)>>1) - ((p&0xc618c618)>>3);
371 		}
372 	}
373 	else
374 	{
375 		while (pixels--)
376 		{
377 			unsigned int p = *sorc++;
378 			*dest++ = (p&0xf79ef79e)>>1;
379 		}
380 	}
381 }
382 
menu_darken_text_bg(void)383 static void menu_darken_text_bg(void)
384 {
385 	int x, y, xmin, xmax, ymax, ls;
386 	unsigned short *screen = g_menuscreen_ptr;
387 
388 	xmin = border_left - 3;
389 	if (xmin < 0)
390 		xmin = 0;
391 	xmax = border_right + 2;
392 	if (xmax > g_menuscreen_w - 1)
393 		xmax = g_menuscreen_w - 1;
394 
395 	y = border_top - 3;
396 	if (y < 0)
397 		y = 0;
398 	ymax = border_bottom + 2;
399 	if (ymax > g_menuscreen_h - 1)
400 		ymax = g_menuscreen_h - 1;
401 
402 	for (x = xmin; x <= xmax; x++)
403 		screen[y * g_menuscreen_pp + x] = 0xa514;
404 	for (y++; y < ymax; y++)
405 	{
406 		ls = y * g_menuscreen_pp;
407 		screen[ls + xmin] = 0xffff;
408 		for (x = xmin + 1; x < xmax; x++)
409 		{
410 			unsigned int p = screen[ls + x];
411 			if (p != menu_text_color)
412 				screen[ls + x] = ((p&0xf79e)>>1) - ((p&0xc618)>>3);
413 		}
414 		screen[ls + xmax] = 0xffff;
415 	}
416 	ls = y * g_menuscreen_pp;
417 	for (x = xmin; x <= xmax; x++)
418 		screen[ls + x] = 0xffff;
419 }
420 
421 static int borders_pending;
422 
menu_reset_borders(void)423 static void menu_reset_borders(void)
424 {
425 	border_left = g_menuscreen_w;
426 	border_right = 0;
427 	border_top = g_menuscreen_h;
428 	border_bottom = 0;
429 }
430 
menu_draw_begin(int need_bg,int no_borders)431 static void menu_draw_begin(int need_bg, int no_borders)
432 {
433 	int y;
434 
435 	plat_video_menu_begin();
436 
437 	menu_reset_borders();
438 	borders_pending = g_border_style && !no_borders;
439 
440 	if (need_bg) {
441 		if (g_border_style && no_borders) {
442 			for (y = 0; y < g_menuscreen_h; y++)
443 				menu_darken_bg((short *)g_menuscreen_ptr + g_menuscreen_pp * y,
444 					(short *)g_menubg_ptr + g_menuscreen_w * y, g_menuscreen_w, 1);
445 		}
446 		else {
447 			for (y = 0; y < g_menuscreen_h; y++)
448 				memcpy((short *)g_menuscreen_ptr + g_menuscreen_pp * y,
449 					(short *)g_menubg_ptr + g_menuscreen_w * y, g_menuscreen_w * 2);
450 		}
451 	}
452 }
453 
menu_draw_end(void)454 static void menu_draw_end(void)
455 {
456 	if (borders_pending)
457 		menu_darken_text_bg();
458 	plat_video_menu_end();
459 }
460 
menu_separation(void)461 static void menu_separation(void)
462 {
463 	if (borders_pending) {
464 		menu_darken_text_bg();
465 		menu_reset_borders();
466 	}
467 }
468 
me_id2offset(const menu_entry * ent,menu_id id)469 static int me_id2offset(const menu_entry *ent, menu_id id)
470 {
471 	int i;
472 	for (i = 0; ent->name; ent++, i++)
473 		if (ent->id == id) return i;
474 
475 	lprintf("%s: id %i not found\n", __FUNCTION__, id);
476 	return 0;
477 }
478 
me_enable(menu_entry * entries,menu_id id,int enable)479 static void me_enable(menu_entry *entries, menu_id id, int enable)
480 {
481 	int i = me_id2offset(entries, id);
482 	entries[i].enabled = enable;
483 }
484 
me_count(const menu_entry * ent)485 static int me_count(const menu_entry *ent)
486 {
487 	int ret;
488 
489 	for (ret = 0; ent->name; ent++, ret++)
490 		;
491 
492 	return ret;
493 }
494 
me_read_onoff(const menu_entry * ent)495 static unsigned int me_read_onoff(const menu_entry *ent)
496 {
497 	// guess var size based on mask to avoid reading too much
498 	if (ent->mask & 0xffff0000)
499 		return *(unsigned int *)ent->var & ent->mask;
500 	else if (ent->mask & 0xff00)
501 		return *(unsigned short *)ent->var & ent->mask;
502 	else
503 		return *(unsigned char *)ent->var & ent->mask;
504 }
505 
me_toggle_onoff(menu_entry * ent)506 static void me_toggle_onoff(menu_entry *ent)
507 {
508 	// guess var size based on mask to avoid reading too much
509 	if (ent->mask & 0xffff0000)
510 		*(unsigned int *)ent->var ^= ent->mask;
511 	else if (ent->mask & 0xff00)
512 		*(unsigned short *)ent->var ^= ent->mask;
513 	else
514 		*(unsigned char *)ent->var ^= ent->mask;
515 }
516 
me_draw(const menu_entry * entries,int sel,void (* draw_more)(void))517 static void me_draw(const menu_entry *entries, int sel, void (*draw_more)(void))
518 {
519 	const menu_entry *ent, *ent_sel = entries;
520 	int x, y, w = 0, h = 0;
521 	int offs, col2_offs = 27 * me_mfont_w;
522 	int vi_sel_ln = 0;
523 	const char *name;
524 	int i, n;
525 
526 	/* calculate size of menu rect */
527 	for (ent = entries, i = n = 0; ent->name; ent++, i++)
528 	{
529 		int wt;
530 
531 		if (!ent->enabled)
532 			continue;
533 
534 		if (i == sel) {
535 			ent_sel = ent;
536 			vi_sel_ln = n;
537 		}
538 
539 		name = NULL;
540 		wt = strlen(ent->name) * me_mfont_w;
541 		if (wt == 0 && ent->generate_name)
542 			name = ent->generate_name(ent->id, &offs);
543 		if (name != NULL)
544 			wt = strlen(name) * me_mfont_w;
545 
546 		if (ent->beh != MB_NONE)
547 		{
548 			if (wt > col2_offs)
549 				col2_offs = wt + me_mfont_w;
550 			wt = col2_offs;
551 
552 			switch (ent->beh) {
553 			case MB_NONE:
554 				break;
555 			case MB_OPT_ONOFF:
556 			case MB_OPT_RANGE:
557 				wt += me_mfont_w * 3;
558 				break;
559 			case MB_OPT_CUSTOM:
560 			case MB_OPT_CUSTONOFF:
561 			case MB_OPT_CUSTRANGE:
562 				name = NULL;
563 				offs = 0;
564 				if (ent->generate_name != NULL)
565 					name = ent->generate_name(ent->id, &offs);
566 				if (name != NULL)
567 					wt += (strlen(name) + offs) * me_mfont_w;
568 				break;
569 			case MB_OPT_ENUM:
570 				wt += 10 * me_mfont_w;
571 				break;
572 			}
573 		}
574 
575 		if (wt > w)
576 			w = wt;
577 		n++;
578 	}
579 	h = n * me_mfont_h;
580 	w += me_mfont_w * 2; /* selector */
581 
582 	if (w > g_menuscreen_w) {
583 		lprintf("width %d > %d\n", w, g_menuscreen_w);
584 		w = g_menuscreen_w;
585 	}
586 	if (h > g_menuscreen_h) {
587 		lprintf("height %d > %d\n", w, g_menuscreen_h);
588 		h = g_menuscreen_h;
589 	}
590 
591 	x = g_menuscreen_w / 2 - w / 2;
592 	y = g_menuscreen_h / 2 - h / 2;
593 #ifdef MENU_ALIGN_LEFT
594 	if (x > 12) x = 12;
595 #endif
596 
597 	/* draw */
598 	menu_draw_begin(1, 0);
599 	menu_draw_selection(x, y + vi_sel_ln * me_mfont_h, w);
600 	x += me_mfont_w * 2;
601 
602 	for (ent = entries; ent->name; ent++)
603 	{
604 		const char **names;
605 		int len, leftname_end = 0;
606 
607 		if (!ent->enabled)
608 			continue;
609 
610 		name = ent->name;
611 		if (strlen(name) == 0) {
612 			if (ent->generate_name)
613 				name = ent->generate_name(ent->id, &offs);
614 		}
615 		if (name != NULL) {
616 			text_out16(x, y, name);
617 			leftname_end = x + (strlen(name) + 1) * me_mfont_w;
618 		}
619 
620 		switch (ent->beh) {
621 		case MB_NONE:
622 			break;
623 		case MB_OPT_ONOFF:
624 			text_out16(x + col2_offs, y, me_read_onoff(ent) ? "ON" : "OFF");
625 			break;
626 		case MB_OPT_RANGE:
627 			text_out16(x + col2_offs, y, "%i", *(int *)ent->var);
628 			break;
629 		case MB_OPT_CUSTOM:
630 		case MB_OPT_CUSTONOFF:
631 		case MB_OPT_CUSTRANGE:
632 			name = NULL;
633 			offs = 0;
634 			if (ent->generate_name)
635 				name = ent->generate_name(ent->id, &offs);
636 			if (name != NULL)
637 				text_out16(x + col2_offs + offs * me_mfont_w, y, "%s", name);
638 			break;
639 		case MB_OPT_ENUM:
640 			names = (const char **)ent->data;
641 			for (i = 0; names[i] != NULL; i++) {
642 				offs = x + col2_offs;
643 				len = strlen(names[i]);
644 				if (len > 10)
645 					offs += (10 - len - 2) * me_mfont_w;
646 				if (offs < leftname_end)
647 					offs = leftname_end;
648 				if (i == *(unsigned char *)ent->var) {
649 					text_out16(offs, y, "%s", names[i]);
650 					break;
651 				}
652 			}
653 			break;
654 		}
655 
656 		y += me_mfont_h;
657 	}
658 
659 	menu_separation();
660 
661 	/* display help or message if we have one */
662 	h = (g_menuscreen_h - h) / 2; // bottom area height
663 	if (menu_error_msg[0] != 0) {
664 		if (h >= me_mfont_h + 4)
665 			text_out16(5, g_menuscreen_h - me_mfont_h - 4, menu_error_msg);
666 		else
667 			lprintf("menu msg doesn't fit!\n");
668 
669 		if (plat_get_ticks_ms() - menu_error_time > 2048)
670 			menu_error_msg[0] = 0;
671 	}
672 	else if (ent_sel->help != NULL) {
673 		const char *tmp = ent_sel->help;
674 		int l;
675 		for (l = 0; tmp != NULL && *tmp != 0; l++)
676 			tmp = strchr(tmp + 1, '\n');
677 		if (h >= l * me_sfont_h + 4)
678 			for (tmp = ent_sel->help; l > 0; l--, tmp = strchr(tmp, '\n') + 1)
679 				smalltext_out16(5, g_menuscreen_h - (l * me_sfont_h + 4), tmp, 0xffff);
680 	}
681 
682 	menu_separation();
683 
684 	if (draw_more != NULL)
685 		draw_more();
686 
687 	menu_draw_end();
688 }
689 
me_process(menu_entry * entry,int is_next,int is_lr)690 static int me_process(menu_entry *entry, int is_next, int is_lr)
691 {
692 	const char **names;
693 	int c;
694 	switch (entry->beh)
695 	{
696 		case MB_OPT_ONOFF:
697 		case MB_OPT_CUSTONOFF:
698 			me_toggle_onoff(entry);
699 			return 1;
700 		case MB_OPT_RANGE:
701 		case MB_OPT_CUSTRANGE:
702 			c = is_lr ? 10 : 1;
703 			*(int *)entry->var += is_next ? c : -c;
704 			if (*(int *)entry->var < (int)entry->min)
705 				*(int *)entry->var = (int)entry->max;
706 			if (*(int *)entry->var > (int)entry->max)
707 				*(int *)entry->var = (int)entry->min;
708 			return 1;
709 		case MB_OPT_ENUM:
710 			names = (const char **)entry->data;
711 			for (c = 0; names[c] != NULL; c++)
712 				;
713 			*(signed char *)entry->var += is_next ? 1 : -1;
714 			if (*(signed char *)entry->var < 0)
715 				*(signed char *)entry->var = 0;
716 			if (*(signed char *)entry->var >= c)
717 				*(signed char *)entry->var = c - 1;
718 			return 1;
719 		default:
720 			return 0;
721 	}
722 }
723 
724 static void debug_menu_loop(void);
725 
me_loop_d(menu_entry * menu,int * menu_sel,void (* draw_prep)(void),void (* draw_more)(void))726 static int me_loop_d(menu_entry *menu, int *menu_sel, void (*draw_prep)(void), void (*draw_more)(void))
727 {
728 	int ret = 0, inp, sel = *menu_sel, menu_sel_max;
729 
730 	menu_sel_max = me_count(menu) - 1;
731 	if (menu_sel_max < 0) {
732 		lprintf("no enabled menu entries\n");
733 		return 0;
734 	}
735 
736 	while ((!menu[sel].enabled || !menu[sel].selectable) && sel < menu_sel_max)
737 		sel++;
738 
739 	/* make sure action buttons are not pressed on entering menu */
740 	me_draw(menu, sel, NULL);
741 	while (in_menu_wait_any(NULL, 50) & (PBTN_MOK|PBTN_MBACK|PBTN_MENU));
742 
743 	for (;;)
744 	{
745 		if (draw_prep != NULL)
746 			draw_prep();
747 
748 		me_draw(menu, sel, draw_more);
749 		inp = in_menu_wait(PBTN_UP|PBTN_DOWN|PBTN_LEFT|PBTN_RIGHT|
750 			PBTN_MOK|PBTN_MBACK|PBTN_MENU|PBTN_L|PBTN_R, NULL, 70);
751 		if (inp & (PBTN_MENU|PBTN_MBACK))
752 			break;
753 
754 		if (inp & PBTN_UP  ) {
755 			do {
756 				sel--;
757 				if (sel < 0)
758 					sel = menu_sel_max;
759 			}
760 			while (!menu[sel].enabled || !menu[sel].selectable);
761 		}
762 		if (inp & PBTN_DOWN) {
763 			do {
764 				sel++;
765 				if (sel > menu_sel_max)
766 					sel = 0;
767 			}
768 			while (!menu[sel].enabled || !menu[sel].selectable);
769 		}
770 
771 		/* a bit hacky but oh well */
772 		if ((inp & (PBTN_L|PBTN_R)) == (PBTN_L|PBTN_R))
773 			debug_menu_loop();
774 
775 		if (inp & (PBTN_LEFT|PBTN_RIGHT|PBTN_L|PBTN_R)) { /* multi choice */
776 			if (me_process(&menu[sel], (inp & (PBTN_RIGHT|PBTN_R)) ? 1 : 0,
777 						inp & (PBTN_L|PBTN_R)))
778 				continue;
779 		}
780 
781 		if (inp & (PBTN_MOK|PBTN_LEFT|PBTN_RIGHT|PBTN_L|PBTN_R))
782 		{
783 			/* require PBTN_MOK for MB_NONE */
784 			if (menu[sel].handler != NULL && (menu[sel].beh != MB_NONE || (inp & PBTN_MOK))) {
785 				ret = menu[sel].handler(menu[sel].id, inp);
786 				if (ret) break;
787 				menu_sel_max = me_count(menu) - 1; /* might change, so update */
788 			}
789 		}
790 	}
791 	*menu_sel = sel;
792 
793 	return ret;
794 }
795 
me_loop(menu_entry * menu,int * menu_sel)796 static int me_loop(menu_entry *menu, int *menu_sel)
797 {
798 	return me_loop_d(menu, menu_sel, NULL, NULL);
799 }
800 
801 /* ***************************************** */
802 
draw_menu_message(const char * msg,void (* draw_more)(void))803 static void draw_menu_message(const char *msg, void (*draw_more)(void))
804 {
805 	int x, y, h, w, wt;
806 	const char *p;
807 
808 	p = msg;
809 	for (h = 1, w = 0; *p != 0; h++) {
810 		for (wt = 0; *p != 0 && *p != '\n'; p++)
811 			wt++;
812 
813 		if (wt > w)
814 			w = wt;
815 		if (*p == 0)
816 			break;
817 		p++;
818 	}
819 
820 	x = g_menuscreen_w / 2 - w * me_mfont_w / 2;
821 	y = g_menuscreen_h / 2 - h * me_mfont_h / 2;
822 	if (x < 0) x = 0;
823 	if (y < 0) y = 0;
824 
825 	menu_draw_begin(1, 0);
826 
827 	for (p = msg; *p != 0 && y <= g_menuscreen_h - me_mfont_h; y += me_mfont_h) {
828 		text_out16(x, y, p);
829 
830 		for (; *p != 0 && *p != '\n'; p++)
831 			;
832 		if (*p != 0)
833 			p++;
834 	}
835 
836 	menu_separation();
837 
838 	if (draw_more != NULL)
839 		draw_more();
840 
841 	menu_draw_end();
842 }
843 
844 // -------------- del confirm ---------------
845 
do_delete(const char * fpath,const char * fname)846 static void do_delete(const char *fpath, const char *fname)
847 {
848 	int len, mid, inp;
849 	const char *nm;
850 	char tmp[64];
851 
852 	menu_draw_begin(1, 0);
853 
854 	len = strlen(fname);
855 	if (len > g_menuscreen_w / me_sfont_w)
856 		len = g_menuscreen_w / me_sfont_w;
857 
858 	mid = g_menuscreen_w / 2;
859 	text_out16(mid - me_mfont_w * 15 / 2,  8 * me_mfont_h, "About to delete");
860 	smalltext_out16(mid - len * me_sfont_w / 2, 9 * me_mfont_h + 5, fname, 0xbdff);
861 	text_out16(mid - me_mfont_w * 13 / 2, 11 * me_mfont_h, "Are you sure?");
862 
863 	nm = in_get_key_name(-1, -PBTN_MA3);
864 	snprintf(tmp, sizeof(tmp), "(%s - confirm, ", nm);
865 	len = strlen(tmp);
866 	nm = in_get_key_name(-1, -PBTN_MBACK);
867 	snprintf(tmp + len, sizeof(tmp) - len, "%s - cancel)", nm);
868 	len = strlen(tmp);
869 
870 	text_out16(mid - me_mfont_w * len / 2, 12 * me_mfont_h, tmp);
871 	menu_draw_end();
872 
873 	while (in_menu_wait_any(NULL, 50) & (PBTN_MENU|PBTN_MA2));
874 	inp = in_menu_wait(PBTN_MA3|PBTN_MBACK, NULL, 100);
875 	if (inp & PBTN_MA3)
876 		remove(fpath);
877 }
878 
879 // -------------- ROM selector --------------
880 
draw_dirlist(char * curdir,struct dirent ** namelist,int n,int sel,int show_help)881 static void draw_dirlist(char *curdir, struct dirent **namelist,
882 	int n, int sel, int show_help)
883 {
884 	int max_cnt, start, i, x, pos;
885 	void *darken_ptr;
886 	char buff[64];
887 
888 	max_cnt = g_menuscreen_h / me_sfont_h;
889 	start = max_cnt / 2 - sel;
890 
891 	menu_draw_begin(1, 1);
892 
893 //	if (!rom_loaded)
894 //		menu_darken_bg(gp2x_screen, 320*240, 0);
895 
896 	darken_ptr = (short *)g_menuscreen_ptr + g_menuscreen_pp * max_cnt/2 * me_sfont_h;
897 	menu_darken_bg(darken_ptr, darken_ptr, g_menuscreen_pp * me_sfont_h * 8 / 10, 0);
898 
899 	x = 5 + me_mfont_w + 1;
900 	if (start - 2 >= 0)
901 		smalltext_out16(14, (start - 2) * me_sfont_h, curdir, 0xffff);
902 	for (i = 0; i < n; i++) {
903 		pos = start + i;
904 		if (pos < 0)  continue;
905 		if (pos >= max_cnt) break;
906 		if (namelist[i]->d_type == DT_DIR) {
907 			smalltext_out16(x, pos * me_sfont_h, "/", 0xfff6);
908 			smalltext_out16(x + me_sfont_w, pos * me_sfont_h, namelist[i]->d_name, 0xfff6);
909 		} else {
910 			unsigned short color = fname2color(namelist[i]->d_name);
911 			smalltext_out16(x, pos * me_sfont_h, namelist[i]->d_name, color);
912 		}
913 	}
914 	smalltext_out16(5, max_cnt/2 * me_sfont_h, ">", 0xffff);
915 
916 	if (show_help) {
917 		darken_ptr = (short *)g_menuscreen_ptr
918 			+ g_menuscreen_pp * (g_menuscreen_h - me_sfont_h * 5 / 2);
919 		menu_darken_bg(darken_ptr, darken_ptr,
920 			g_menuscreen_pp * (me_sfont_h * 5 / 2), 1);
921 
922 		snprintf(buff, sizeof(buff), "%s - select, %s - back",
923 			in_get_key_name(-1, -PBTN_MOK), in_get_key_name(-1, -PBTN_MBACK));
924 		smalltext_out16(x, g_menuscreen_h - me_sfont_h * 3 - 2, buff, 0xe78c);
925 
926 		snprintf(buff, sizeof(buff), g_menu_filter_off ?
927 			 "%s - hide unknown files" : "%s - show all files",
928 			in_get_key_name(-1, -PBTN_MA3));
929 		smalltext_out16(x, g_menuscreen_h - me_sfont_h * 2 - 2, buff, 0xe78c);
930 
931 		snprintf(buff, sizeof(buff), g_autostateld_opt ?
932 			 "%s - autoload save is ON" : "%s - autoload save is OFF",
933 			in_get_key_name(-1, -PBTN_MA2));
934 		smalltext_out16(x, g_menuscreen_h - me_sfont_h * 1 - 2, buff, 0xe78c);
935 	}
936 
937 	menu_draw_end();
938 }
939 
scandir_cmp(const void * p1,const void * p2)940 static int scandir_cmp(const void *p1, const void *p2)
941 {
942 	const struct dirent **d1 = (const struct dirent **)p1;
943 	const struct dirent **d2 = (const struct dirent **)p2;
944 	const char *p;
945 	if ((p = (*d1)->d_name)[0] == '.' && p[1] == '.' && p[2] == 0)
946 		return -1;	// ".." first
947 	if ((p = (*d2)->d_name)[0] == '.' && p[1] == '.' && p[2] == 0)
948 		return 1;
949 	if ((*d1)->d_type == (*d2)->d_type)
950 		return alphasort(d1, d2);
951 	if ((*d1)->d_type == DT_DIR)
952 		return -1;	// directories before files/links
953 	if ((*d2)->d_type == DT_DIR)
954 		return  1;
955 
956 	return alphasort(d1, d2);
957 }
958 
959 static const char **filter_exts_internal;
960 
scandir_filter(const struct dirent * ent)961 static int scandir_filter(const struct dirent *ent)
962 {
963 	const char **filter = filter_exts_internal;
964 	const char *ext;
965 	int i;
966 
967 	if (ent == NULL)
968 		return 0;
969 
970 	switch (ent->d_type) {
971 	case DT_DIR:
972 		// leave out useless reference to current directory
973 		return strcmp(ent->d_name, ".") != 0;
974 	case DT_LNK:
975 	case DT_UNKNOWN:
976 		// could be a dir, deal with it later..
977 		return 1;
978 	}
979 
980 	ext = strrchr(ent->d_name, '.');
981 	if (ext == NULL)
982 		return 0;
983 
984 	ext++;
985 	for (i = 0; filter[i] != NULL; i++)
986 		if (strcasecmp(ext, filter[i]) == 0)
987 			return 1;
988 
989 	return 0;
990 }
991 
dirent_seek_char(struct dirent ** namelist,int len,int sel,char c)992 static int dirent_seek_char(struct dirent **namelist, int len, int sel, char c)
993 {
994 	int i;
995 
996 	sel++;
997 	for (i = sel + 1; ; i++) {
998 		if (i >= len)
999 			i = 1;
1000 		if (i == sel)
1001 			break;
1002 
1003 		if (tolower_simple(namelist[i]->d_name[0]) == c)
1004 			break;
1005 	}
1006 
1007 	return i - 1;
1008 }
1009 
menu_loop_romsel(char * curr_path,int len,const char ** filter_exts,int (* extra_filter)(struct dirent ** namelist,int count,const char * basedir))1010 static const char *menu_loop_romsel(char *curr_path, int len,
1011 	const char **filter_exts,
1012 	int (*extra_filter)(struct dirent **namelist, int count,
1013 			    const char *basedir))
1014 {
1015 	static char rom_fname_reload[256]; // used for scratch and return
1016 	char sel_fname[256];
1017 	int (*filter)(const struct dirent *);
1018 	struct dirent **namelist = NULL;
1019 	int n = 0, inp = 0, sel = 0, show_help = 0;
1020 	char *curr_path_restore = NULL;
1021 	const char *ret = NULL;
1022 	char cinp;
1023 	int r, i;
1024 
1025 	filter_exts_internal = filter_exts;
1026 	sel_fname[0] = 0;
1027 
1028 	// is this a dir or a full path?
1029 	if (!plat_is_dir(curr_path)) {
1030 		char *p = strrchr(curr_path, '/');
1031 		if (p != NULL) {
1032 			*p = 0;
1033 			curr_path_restore = p;
1034 			snprintf(sel_fname, sizeof(sel_fname), "%s", p + 1);
1035 		}
1036 
1037 		if (rom_fname_reload[0] == 0)
1038 			show_help = 2;
1039 	}
1040 
1041 rescan:
1042 	if (namelist != NULL) {
1043 		while (n-- > 0)
1044 			free(namelist[n]);
1045 		free(namelist);
1046 		namelist = NULL;
1047 	}
1048 
1049 	filter = NULL;
1050 	if (!g_menu_filter_off)
1051 		filter = scandir_filter;
1052 
1053 	n = scandir(curr_path, &namelist, filter, (void *)scandir_cmp);
1054 	if (n < 0) {
1055 		lprintf("menu_loop_romsel failed, dir: %s\n", curr_path);
1056 
1057 		// try data root
1058 		plat_get_data_dir(curr_path, len);
1059 		n = scandir(curr_path, &namelist, filter, (void *)scandir_cmp);
1060 		if (n < 0) {
1061 			// oops, we failed
1062 			lprintf("menu_loop_romsel failed, dir: %s\n", curr_path);
1063 			return NULL;
1064 		}
1065 	}
1066 
1067 	// try to resolve DT_UNKNOWN and symlinks
1068 	for (i = 0; i < n; i++) {
1069 		struct stat st;
1070 		char *slash;
1071 
1072 		if (namelist[i]->d_type == DT_REG || namelist[i]->d_type == DT_DIR)
1073 			continue;
1074 
1075 		r = strlen(curr_path);
1076 		slash = (r && curr_path[r-1] == '/') ? "" : "/";
1077 		snprintf(rom_fname_reload, sizeof(rom_fname_reload),
1078 			"%s%s%s", curr_path, slash, namelist[i]->d_name);
1079 		r = stat(rom_fname_reload, &st);
1080 		if (r == 0)
1081 		{
1082 			if (S_ISREG(st.st_mode))
1083 				namelist[i]->d_type = DT_REG;
1084 			else if (S_ISDIR(st.st_mode))
1085 				namelist[i]->d_type = DT_DIR;
1086 		}
1087 	}
1088 
1089 	if (!g_menu_filter_off && extra_filter != NULL)
1090 		n = extra_filter(namelist, n, curr_path);
1091 
1092 	if (n > 1)
1093 		qsort(namelist, n, sizeof(namelist[0]), scandir_cmp);
1094 
1095 	// try to find selected file
1096 	sel = 0;
1097 	if (sel_fname[0] != 0) {
1098 		for (i = 0; i < n; i++) {
1099 			char *dname = namelist[i]->d_name;
1100 			if (dname[0] == sel_fname[0] && strcmp(dname, sel_fname) == 0) {
1101 				sel = i;
1102 				break;
1103 			}
1104 		}
1105 	}
1106 
1107 	/* make sure action buttons are not pressed on entering menu */
1108 	draw_dirlist(curr_path, namelist, n, sel, show_help);
1109 	while (in_menu_wait_any(NULL, 50) & (PBTN_MOK|PBTN_MBACK|PBTN_MENU))
1110 		;
1111 
1112 	for (;;)
1113 	{
1114 		draw_dirlist(curr_path, namelist, n, sel, show_help);
1115 		inp = in_menu_wait(PBTN_UP|PBTN_DOWN|PBTN_LEFT|PBTN_RIGHT
1116 			| PBTN_L|PBTN_R|PBTN_MA2|PBTN_MA3|PBTN_MOK|PBTN_MBACK
1117 			| PBTN_MENU|PBTN_CHAR, &cinp, 33);
1118 		if (inp & PBTN_MA3)   {
1119 			g_menu_filter_off = !g_menu_filter_off;
1120 			snprintf(sel_fname, sizeof(sel_fname), "%s",
1121 				namelist[sel]->d_name);
1122 			goto rescan;
1123 		}
1124 		if (inp & PBTN_UP  )  { sel--;   if (sel < 0)   sel = n-1; }
1125 		if (inp & PBTN_DOWN)  { sel++;   if (sel > n-1) sel = 0; }
1126 		if (inp & PBTN_LEFT)  { sel-=10; if (sel < 0)   sel = 0; }
1127 		if (inp & PBTN_L)     { sel-=24; if (sel < 0)   sel = 0; }
1128 		if (inp & PBTN_RIGHT) { sel+=10; if (sel > n-1) sel = n-1; }
1129 		if (inp & PBTN_R)     { sel+=24; if (sel > n-1) sel = n-1; }
1130 
1131 		if ((inp & PBTN_MOK) || (inp & (PBTN_MENU|PBTN_MA2)) == (PBTN_MENU|PBTN_MA2))
1132 		{
1133 			if (namelist[sel]->d_type == DT_REG)
1134 			{
1135 				int l = strlen(curr_path);
1136 				char *slash = l && curr_path[l-1] == '/' ? "" : "/";
1137 				snprintf(rom_fname_reload, sizeof(rom_fname_reload),
1138 					"%s%s%s", curr_path, slash, namelist[sel]->d_name);
1139 				if (inp & PBTN_MOK) { // return sel
1140 					ret = rom_fname_reload;
1141 					break;
1142 				}
1143 				do_delete(rom_fname_reload, namelist[sel]->d_name);
1144 				goto rescan;
1145 			}
1146 			else if (namelist[sel]->d_type == DT_DIR)
1147 			{
1148 				int newlen;
1149 				char *p, *newdir;
1150 				if (!(inp & PBTN_MOK))
1151 					continue;
1152 				newlen = strlen(curr_path) + strlen(namelist[sel]->d_name) + 2;
1153 				newdir = malloc(newlen);
1154 				if (newdir == NULL)
1155 					break;
1156 				if (strcmp(namelist[sel]->d_name, "..") == 0) {
1157 					char *start = curr_path;
1158 					p = start + strlen(start) - 1;
1159 					while (*p == '/' && p > start) p--;
1160 					while (*p != '/' && p > start) p--;
1161 					if (p <= start) plat_get_data_dir(newdir, newlen);
1162 					else { strncpy(newdir, start, p-start); newdir[p-start] = 0; }
1163 				} else {
1164 					strcpy(newdir, curr_path);
1165 					p = newdir + strlen(newdir) - 1;
1166 					while (*p == '/' && p >= newdir) *p-- = 0;
1167 					strcat(newdir, "/");
1168 					strcat(newdir, namelist[sel]->d_name);
1169 				}
1170 				ret = menu_loop_romsel(newdir, newlen, filter_exts, extra_filter);
1171 				free(newdir);
1172 				break;
1173 			}
1174 		}
1175 		else if (inp & PBTN_MA2) {
1176 			g_autostateld_opt = !g_autostateld_opt;
1177 			show_help = 3;
1178 		}
1179 		else if (inp & PBTN_CHAR) {
1180 			// must be last
1181 			sel = dirent_seek_char(namelist, n, sel, cinp);
1182 		}
1183 
1184 		if (inp & PBTN_MBACK)
1185 			break;
1186 
1187 		if (show_help > 0)
1188 			show_help--;
1189 	}
1190 
1191 	if (n > 0) {
1192 		while (n-- > 0)
1193 			free(namelist[n]);
1194 		free(namelist);
1195 	}
1196 
1197 	// restore curr_path
1198 	if (curr_path_restore != NULL)
1199 		*curr_path_restore = '/';
1200 
1201 	return ret;
1202 }
1203 
1204 // ------------ savestate loader ------------
1205 
1206 #define STATE_SLOT_COUNT 10
1207 
1208 static int state_slot_flags = 0;
1209 static int state_slot_times[STATE_SLOT_COUNT];
1210 
state_check_slots(void)1211 static void state_check_slots(void)
1212 {
1213 	int slot;
1214 
1215 	state_slot_flags = 0;
1216 
1217 	for (slot = 0; slot < STATE_SLOT_COUNT; slot++) {
1218 		state_slot_times[slot] = 0;
1219 		if (emu_check_save_file(slot, &state_slot_times[slot]))
1220 			state_slot_flags |= 1 << slot;
1221 	}
1222 }
1223 
1224 static void draw_savestate_bg(int slot);
1225 
draw_savestate_menu(int menu_sel,int is_loading)1226 static void draw_savestate_menu(int menu_sel, int is_loading)
1227 {
1228 	int i, x, y, w, h;
1229 	char time_buf[32];
1230 
1231 	if (state_slot_flags & (1 << menu_sel))
1232 		draw_savestate_bg(menu_sel);
1233 
1234 	w = (13 + 2) * me_mfont_w;
1235 	h = (1+2+STATE_SLOT_COUNT+1) * me_mfont_h;
1236 	x = g_menuscreen_w / 2 - w / 2;
1237 	if (x < 0) x = 0;
1238 	y = g_menuscreen_h / 2 - h / 2;
1239 	if (y < 0) y = 0;
1240 #ifdef MENU_ALIGN_LEFT
1241 	if (x > 12 + me_mfont_w * 2)
1242 		x = 12 + me_mfont_w * 2;
1243 #endif
1244 
1245 	menu_draw_begin(1, 1);
1246 
1247 	text_out16(x, y, is_loading ? "Load state" : "Save state");
1248 	y += 3 * me_mfont_h;
1249 
1250 	menu_draw_selection(x - me_mfont_w * 2, y + menu_sel * me_mfont_h, (23 + 2) * me_mfont_w + 4);
1251 
1252 	/* draw all slots */
1253 	for (i = 0; i < STATE_SLOT_COUNT; i++, y += me_mfont_h)
1254 	{
1255 		if (!(state_slot_flags & (1 << i)))
1256 			strcpy(time_buf, "free");
1257 		else {
1258 			strcpy(time_buf, "USED");
1259 			if (state_slot_times[i] != 0) {
1260 				time_t time = state_slot_times[i];
1261 				struct tm *t = localtime(&time);
1262 				strftime(time_buf, sizeof(time_buf), "%x %R", t);
1263 			}
1264 		}
1265 
1266 		text_out16(x, y, "SLOT %i (%s)", i, time_buf);
1267 	}
1268 	text_out16(x, y, "back");
1269 
1270 	menu_draw_end();
1271 }
1272 
menu_loop_savestate(int is_loading)1273 static int menu_loop_savestate(int is_loading)
1274 {
1275 	static int menu_sel = STATE_SLOT_COUNT;
1276 	int menu_sel_max = STATE_SLOT_COUNT;
1277 	unsigned long inp = 0;
1278 	int ret = 0;
1279 
1280 	state_check_slots();
1281 
1282 	if (!(state_slot_flags & (1 << menu_sel)) && is_loading)
1283 		menu_sel = menu_sel_max;
1284 
1285 	for (;;)
1286 	{
1287 		draw_savestate_menu(menu_sel, is_loading);
1288 		inp = in_menu_wait(PBTN_UP|PBTN_DOWN|PBTN_MOK|PBTN_MBACK, NULL, 100);
1289 		if (inp & PBTN_UP) {
1290 			do {
1291 				menu_sel--;
1292 				if (menu_sel < 0)
1293 					menu_sel = menu_sel_max;
1294 			} while (!(state_slot_flags & (1 << menu_sel)) && menu_sel != menu_sel_max && is_loading);
1295 		}
1296 		if (inp & PBTN_DOWN) {
1297 			do {
1298 				menu_sel++;
1299 				if (menu_sel > menu_sel_max)
1300 					menu_sel = 0;
1301 			} while (!(state_slot_flags & (1 << menu_sel)) && menu_sel != menu_sel_max && is_loading);
1302 		}
1303 		if (inp & PBTN_MOK) { // save/load
1304 			if (menu_sel < STATE_SLOT_COUNT) {
1305 				state_slot = menu_sel;
1306 				if (emu_save_load_game(is_loading, 0)) {
1307 					menu_update_msg(is_loading ? "Load failed" : "Save failed");
1308 					break;
1309 				}
1310 				ret = 1;
1311 				break;
1312 			}
1313 			break;
1314 		}
1315 		if (inp & PBTN_MBACK)
1316 			break;
1317 	}
1318 
1319 	return ret;
1320 }
1321 
1322 // -------------- key config --------------
1323 
action_binds(int player_idx,int action_mask,int dev_id)1324 static char *action_binds(int player_idx, int action_mask, int dev_id)
1325 {
1326 	int dev = 0, dev_last = IN_MAX_DEVS - 1;
1327 	int can_combo = 1, type;
1328 
1329 	static_buff[0] = 0;
1330 
1331 	type = IN_BINDTYPE_EMU;
1332 	if (player_idx >= 0) {
1333 		can_combo = 0;
1334 		type = IN_BINDTYPE_PLAYER12;
1335 	}
1336 	if (player_idx == 1)
1337 		action_mask <<= 16;
1338 
1339 	if (dev_id >= 0)
1340 		dev = dev_last = dev_id;
1341 
1342 	for (; dev <= dev_last; dev++) {
1343 		int k, count = 0, combo = 0;
1344 		const int *binds;
1345 
1346 		binds = in_get_dev_binds(dev);
1347 		if (binds == NULL)
1348 			continue;
1349 
1350 		in_get_config(dev, IN_CFG_BIND_COUNT, &count);
1351 		in_get_config(dev, IN_CFG_DOES_COMBOS, &combo);
1352 		combo = combo && can_combo;
1353 
1354 		for (k = 0; k < count; k++) {
1355 			const char *xname;
1356 			int len;
1357 
1358 			if (!(binds[IN_BIND_OFFS(k, type)] & action_mask))
1359 				continue;
1360 
1361 			xname = in_get_key_name(dev, k);
1362 			len = strlen(static_buff);
1363 			if (len) {
1364 				strncat(static_buff, combo ? " + " : ", ",
1365 					sizeof(static_buff) - len - 1);
1366 				len += combo ? 3 : 2;
1367 			}
1368 			strncat(static_buff, xname, sizeof(static_buff) - len - 1);
1369 		}
1370 	}
1371 
1372 	return static_buff;
1373 }
1374 
count_bound_keys(int dev_id,int action_mask,int bindtype)1375 static int count_bound_keys(int dev_id, int action_mask, int bindtype)
1376 {
1377 	const int *binds;
1378 	int k, keys = 0;
1379 	int count = 0;
1380 
1381 	binds = in_get_dev_binds(dev_id);
1382 	if (binds == NULL)
1383 		return 0;
1384 
1385 	in_get_config(dev_id, IN_CFG_BIND_COUNT, &count);
1386 	for (k = 0; k < count; k++)
1387 	{
1388 		if (binds[IN_BIND_OFFS(k, bindtype)] & action_mask)
1389 			keys++;
1390 	}
1391 
1392 	return keys;
1393 }
1394 
draw_key_config(const me_bind_action * opts,int opt_cnt,int player_idx,int sel,int dev_id,int dev_count,int is_bind)1395 static void draw_key_config(const me_bind_action *opts, int opt_cnt, int player_idx,
1396 		int sel, int dev_id, int dev_count, int is_bind)
1397 {
1398 	char buff[64], buff2[32];
1399 	const char *dev_name;
1400 	int x, y, w, i;
1401 
1402 	w = ((player_idx >= 0) ? 20 : 30) * me_mfont_w;
1403 	x = g_menuscreen_w / 2 - w / 2;
1404 	y = (g_menuscreen_h - 4 * me_mfont_h) / 2 - (2 + opt_cnt) * me_mfont_h / 2;
1405 	if (x < me_mfont_w * 2)
1406 		x = me_mfont_w * 2;
1407 	if (y < 0)
1408 		y = 0;
1409 	menu_draw_begin(1, 0);
1410 	if (player_idx >= 0)
1411 		text_out16(x, y, "Player %i controls", player_idx + 1);
1412 	else
1413 		text_out16(x, y, "Emulator controls");
1414 
1415 	y += 2 * me_mfont_h;
1416 	menu_draw_selection(x - me_mfont_w * 2, y + sel * me_mfont_h, w + 2 * me_mfont_w);
1417 
1418 	for (i = 0; i < opt_cnt; i++, y += me_mfont_h)
1419 		text_out16(x, y, "%s : %s", opts[i].name,
1420 			action_binds(player_idx, opts[i].mask, dev_id));
1421 
1422 	menu_separation();
1423 
1424 	if (dev_id < 0)
1425 		dev_name = "(all devices)";
1426 	else
1427 		dev_name = in_get_dev_name(dev_id, 0, 1);
1428 	w = strlen(dev_name) * me_mfont_w;
1429 	if (w < 30 * me_mfont_w)
1430 		w = 30 * me_mfont_w;
1431 	if (w > g_menuscreen_w)
1432 		w = g_menuscreen_w;
1433 
1434 	x = g_menuscreen_w / 2 - w / 2;
1435 
1436 	if (!is_bind) {
1437 		snprintf(buff2, sizeof(buff2), "%s", in_get_key_name(-1, -PBTN_MOK));
1438 		snprintf(buff, sizeof(buff), "%s - bind, %s - clear", buff2,
1439 				in_get_key_name(-1, -PBTN_MA2));
1440 		text_out16(x, g_menuscreen_h - 4 * me_mfont_h, buff);
1441 	}
1442 	else
1443 		text_out16(x, g_menuscreen_h - 4 * me_mfont_h, "Press a button to bind/unbind");
1444 
1445 	if (dev_count > 1) {
1446 		text_out16(x, g_menuscreen_h - 3 * me_mfont_h, dev_name);
1447 		text_out16(x, g_menuscreen_h - 2 * me_mfont_h, "Press left/right for other devs");
1448 	}
1449 
1450 	menu_draw_end();
1451 }
1452 
key_config_loop(const me_bind_action * opts,int opt_cnt,int player_idx)1453 static void key_config_loop(const me_bind_action *opts, int opt_cnt, int player_idx)
1454 {
1455 	int i, sel = 0, menu_sel_max = opt_cnt - 1, does_combos = 0;
1456 	int dev_id, bind_dev_id, dev_count, kc, is_down, mkey;
1457 	int unbind, bindtype, mask_shift;
1458 
1459 	for (i = 0, dev_id = -1, dev_count = 0; i < IN_MAX_DEVS; i++) {
1460 		if (in_get_dev_name(i, 1, 0) != NULL) {
1461 			dev_count++;
1462 			if (dev_id < 0)
1463 				dev_id = i;
1464 		}
1465 	}
1466 
1467 	if (dev_id == -1) {
1468 		lprintf("no devs, can't do config\n");
1469 		return;
1470 	}
1471 
1472 	dev_id = -1; // show all
1473 	mask_shift = 0;
1474 	if (player_idx == 1)
1475 		mask_shift = 16;
1476 	bindtype = player_idx >= 0 ? IN_BINDTYPE_PLAYER12 : IN_BINDTYPE_EMU;
1477 
1478 	for (;;)
1479 	{
1480 		draw_key_config(opts, opt_cnt, player_idx, sel, dev_id, dev_count, 0);
1481 		mkey = in_menu_wait(PBTN_UP|PBTN_DOWN|PBTN_LEFT|PBTN_RIGHT
1482 				|PBTN_MBACK|PBTN_MOK|PBTN_MA2, NULL, 100);
1483 		switch (mkey) {
1484 			case PBTN_UP:   sel--; if (sel < 0) sel = menu_sel_max; continue;
1485 			case PBTN_DOWN: sel++; if (sel > menu_sel_max) sel = 0; continue;
1486 			case PBTN_LEFT:
1487 				for (i = 0, dev_id--; i < IN_MAX_DEVS + 1; i++, dev_id--) {
1488 					if (dev_id < -1)
1489 						dev_id = IN_MAX_DEVS - 1;
1490 					if (dev_id == -1 || in_get_dev_name(dev_id, 0, 0) != NULL)
1491 						break;
1492 				}
1493 				continue;
1494 			case PBTN_RIGHT:
1495 				for (i = 0, dev_id++; i < IN_MAX_DEVS; i++, dev_id++) {
1496 					if (dev_id >= IN_MAX_DEVS)
1497 						dev_id = -1;
1498 					if (dev_id == -1 || in_get_dev_name(dev_id, 0, 0) != NULL)
1499 						break;
1500 				}
1501 				continue;
1502 			case PBTN_MBACK:
1503 				return;
1504 			case PBTN_MOK:
1505 				if (sel >= opt_cnt)
1506 					return;
1507 				while (in_menu_wait_any(NULL, 30) & PBTN_MOK)
1508 					;
1509 				break;
1510 			case PBTN_MA2:
1511 				in_unbind_all(dev_id, opts[sel].mask << mask_shift, bindtype);
1512 				continue;
1513 			default:continue;
1514 		}
1515 
1516 		draw_key_config(opts, opt_cnt, player_idx, sel, dev_id, dev_count, 1);
1517 
1518 		/* wait for some up event */
1519 		for (is_down = 1; is_down; )
1520 			kc = in_update_keycode(&bind_dev_id, &is_down, NULL, -1);
1521 
1522 		i = count_bound_keys(bind_dev_id, opts[sel].mask << mask_shift, bindtype);
1523 		unbind = (i > 0);
1524 
1525 		/* allow combos if device supports them */
1526 		in_get_config(bind_dev_id, IN_CFG_DOES_COMBOS, &does_combos);
1527 		if (i == 1 && bindtype == IN_BINDTYPE_EMU && does_combos)
1528 			unbind = 0;
1529 
1530 		if (unbind)
1531 			in_unbind_all(bind_dev_id, opts[sel].mask << mask_shift, bindtype);
1532 
1533 		in_bind_key(bind_dev_id, kc, opts[sel].mask << mask_shift, bindtype, 0);
1534 
1535 		// make sure bind change is displayed
1536 		if (dev_id != -1)
1537 			dev_id = bind_dev_id;
1538 	}
1539 }
1540 
1541