fix a buffer overflow

[libpicofe.git] / menu.c

/*\r
 * (C) Gražvydas "notaz" Ignotas, 2006-2012\r
 *\r
 * This work is licensed under the terms of any of these licenses\r
 * (at your option):\r
 *  - GNU GPL, version 2 or later.\r
 *  - GNU LGPL, version 2.1 or later.\r
 *  - MAME license.\r
 * See the COPYING file in the top-level directory.\r
 */\r
\r
#include <stdio.h>\r
#include <string.h>\r
#include <stdlib.h>\r
#include <stdarg.h>\r
#include <time.h>\r
#include <locale.h> // savestate date\r
\r
#include "menu.h"\r
#include "fonts.h"\r
#include "readpng.h"\r
#include "lprintf.h"\r
#include "input.h"\r
#include "plat.h"\r
#include "posix.h"\r
\r
static char static_buff[64];\r
static int  menu_error_time = 0;\r
char menu_error_msg[64] = { 0, };\r
void *g_menuscreen_ptr;\r
void *g_menubg_src_ptr;\r
void *g_menubg_ptr;\r
\r
int g_menuscreen_w;\r
int g_menuscreen_h;\r
\r
int g_autostateld_opt;\r
\r
static unsigned char *menu_font_data = NULL;\r
static int menu_text_color = 0xfffe; // default to white\r
static int menu_sel_color = -1; // disabled\r
\r
/* note: these might become non-constant in future */\r
#if MENU_X2\r
static const int me_mfont_w = 16, me_mfont_h = 20;\r
static const int me_sfont_w = 12, me_sfont_h = 20;\r
#else\r
static const int me_mfont_w = 8, me_mfont_h = 10;\r
static const int me_sfont_w = 6, me_sfont_h = 10;\r
#endif\r
\r
static int g_menu_filter_off;\r
static int g_border_style;\r
static int border_left, border_right, border_top, border_bottom;\r
\r
// draws text to current bbp16 screen\r
static void text_out16_(int x, int y, const char *text, int color)\r
{\r
	int i, lh, tr, tg, tb, len;\r
	unsigned short *dest = (unsigned short *)g_menuscreen_ptr + x + y * g_menuscreen_w;\r
	tr = (color & 0xf800) >> 8;\r
	tg = (color & 0x07e0) >> 3;\r
	tb = (color & 0x001f) << 3;\r
\r
	if (text == (void *)1)\r
	{\r
		// selector symbol\r
		text = "";\r
		len = 1;\r
	}\r
	else\r
	{\r
		const char *p;\r
		for (p = text; *p != 0 && *p != '\n'; p++)\r
			;\r
		len = p - text;\r
	}\r
\r
	lh = me_mfont_h;\r
	if (y + lh > g_menuscreen_h)\r
		lh = g_menuscreen_h - y;\r
\r
	for (i = 0; i < len; i++)\r
	{\r
		unsigned char  *src = menu_font_data + (unsigned int)text[i] * me_mfont_w * me_mfont_h / 2;\r
		unsigned short *dst = dest;\r
		int u, l;\r
\r
		for (l = 0; l < lh; l++, dst += g_menuscreen_w - me_mfont_w)\r
		{\r
			for (u = me_mfont_w / 2; u > 0; u--, src++)\r
			{\r
				int c, r, g, b;\r
				c = *src >> 4;\r
				r = (*dst & 0xf800) >> 8;\r
				g = (*dst & 0x07e0) >> 3;\r
				b = (*dst & 0x001f) << 3;\r
				r = (c^0xf)*r/15 + c*tr/15;\r
				g = (c^0xf)*g/15 + c*tg/15;\r
				b = (c^0xf)*b/15 + c*tb/15;\r
				*dst++ = ((r<<8)&0xf800) | ((g<<3)&0x07e0) | (b>>3);\r
				c = *src & 0xf;\r
				r = (*dst & 0xf800) >> 8;\r
				g = (*dst & 0x07e0) >> 3;\r
				b = (*dst & 0x001f) << 3;\r
				r = (c^0xf)*r/15 + c*tr/15;\r
				g = (c^0xf)*g/15 + c*tg/15;\r
				b = (c^0xf)*b/15 + c*tb/15;\r
				*dst++ = ((r<<8)&0xf800) | ((g<<3)&0x07e0) | (b>>3);\r
			}\r
		}\r
		dest += me_mfont_w;\r
	}\r
\r
	if (x < border_left)\r
		border_left = x;\r
	if (x + i * me_mfont_w > border_right)\r
		border_right = x + i * me_mfont_w;\r
	if (y < border_top)\r
		border_top = y;\r
	if (y + me_mfont_h > border_bottom)\r
		border_bottom = y + me_mfont_h;\r
}\r
\r
void text_out16(int x, int y, const char *texto, ...)\r
{\r
	va_list args;\r
	char    buffer[256];\r
	int     maxw = (g_menuscreen_w - x) / me_mfont_w;\r
\r
	if (maxw < 0)\r
		return;\r
\r
	va_start(args, texto);\r
	vsnprintf(buffer, sizeof(buffer), texto, args);\r
	va_end(args);\r
\r
	if (maxw > sizeof(buffer) - 1)\r
		maxw = sizeof(buffer) - 1;\r
	buffer[maxw] = 0;\r
\r
	text_out16_(x,y,buffer,menu_text_color);\r
}\r
\r
/* draws in 6x8 font, might multiply size by integer */\r
static void smalltext_out16_(int x, int y, const char *texto, int color)\r
{\r
	unsigned char  *src;\r
	unsigned short *dst;\r
	int multiplier = me_sfont_w / 6;\r
	int i;\r
\r
	for (i = 0;; i++, x += me_sfont_w)\r
	{\r
		unsigned char c = (unsigned char) texto[i];\r
		int h = 8;\r
\r
		if (!c || c == '\n')\r
			break;\r
\r
		src = fontdata6x8[c];\r
		dst = (unsigned short *)g_menuscreen_ptr + x + y * g_menuscreen_w;\r
\r
		while (h--)\r
		{\r
			int m, w2, h2;\r
			for (h2 = multiplier; h2 > 0; h2--)\r
			{\r
				for (m = 0x20; m; m >>= 1) {\r
					if (*src & m)\r
						for (w2 = multiplier; w2 > 0; w2--)\r
							*dst++ = color;\r
					else\r
						dst += multiplier;\r
				}\r
\r
				dst += g_menuscreen_w - me_sfont_w;\r
			}\r
			src++;\r
		}\r
	}\r
}\r
\r
static void smalltext_out16(int x, int y, const char *texto, int color)\r
{\r
	char buffer[128];\r
	int maxw = (g_menuscreen_w - x) / me_sfont_w;\r
\r
	if (maxw < 0)\r
		return;\r
\r
	strncpy(buffer, texto, sizeof(buffer));\r
	if (maxw > sizeof(buffer) - 1)\r
		maxw = sizeof(buffer) - 1;\r
	buffer[maxw] = 0;\r
\r
	smalltext_out16_(x, y, buffer, color);\r
}\r
\r
static void menu_draw_selection(int x, int y, int w)\r
{\r
	int i, h;\r
	unsigned short *dst, *dest;\r
\r
	text_out16_(x, y, (void *)1, (menu_sel_color < 0) ? menu_text_color : menu_sel_color);\r
\r
	if (menu_sel_color < 0) return; // no selection hilight\r
\r
	if (y > 0) y--;\r
	dest = (unsigned short *)g_menuscreen_ptr + x + y * g_menuscreen_w + me_mfont_w * 2 - 2;\r
	for (h = me_mfont_h + 1; h > 0; h--)\r
	{\r
		dst = dest;\r
		for (i = w - (me_mfont_w * 2 - 2); i > 0; i--)\r
			*dst++ = menu_sel_color;\r
		dest += g_menuscreen_w;\r
	}\r
}\r
\r
static int parse_hex_color(char *buff)\r
{\r
	char *endp = buff;\r
	int t = (int) strtoul(buff, &endp, 16);\r
	if (endp != buff)\r
#ifdef PSP\r
		return ((t<<8)&0xf800) | ((t>>5)&0x07e0) | ((t>>19)&0x1f);\r
#else\r
		return ((t>>8)&0xf800) | ((t>>5)&0x07e0) | ((t>>3)&0x1f);\r
#endif\r
	return -1;\r
}\r
\r
static char tolower_simple(char c)\r
{\r
	if ('A' <= c && c <= 'Z')\r
		c = c - 'A' + 'a';\r
	return c;\r
}\r
\r
void menu_init_base(void)\r
{\r
	int i, c, l, pos;\r
	unsigned char *fd, *fds;\r
	char buff[256];\r
	FILE *f;\r
\r
	if (menu_font_data != NULL)\r
		free(menu_font_data);\r
\r
	menu_font_data = calloc((MENU_X2 ? 256 * 320 : 128 * 160) / 2, 1);\r
	if (menu_font_data == NULL)\r
		return;\r
\r
	// generate default 8x10 font from fontdata8x8\r
	for (c = 0, fd = menu_font_data; c < 128; c++)\r
	{\r
		for (l = 0; l < 8; l++)\r
		{\r
			unsigned char fd8x8 = fontdata8x8[c*8+l];\r
			if (fd8x8&0x80) *fd  = 0xf0;\r
			if (fd8x8&0x40) *fd |= 0x0f; fd++;\r
			if (fd8x8&0x20) *fd  = 0xf0;\r
			if (fd8x8&0x10) *fd |= 0x0f; fd++;\r
			if (fd8x8&0x08) *fd  = 0xf0;\r
			if (fd8x8&0x04) *fd |= 0x0f; fd++;\r
			if (fd8x8&0x02) *fd  = 0xf0;\r
			if (fd8x8&0x01) *fd |= 0x0f; fd++;\r
		}\r
		fd += 8*2/2; // 2 empty lines\r
	}\r
\r
	if (MENU_X2) {\r
		// expand default font\r
		fds = menu_font_data + 128 * 160 / 2 - 4;\r
		fd  = menu_font_data + 256 * 320 / 2 - 1;\r
		for (c = 255; c >= 0; c--)\r
		{\r
			for (l = 9; l >= 0; l--, fds -= 4)\r
			{\r
				for (i = 3; i >= 0; i--) {\r
					int px = fds[i] & 0x0f;\r
					*fd-- = px | (px << 4);\r
					px = (fds[i] >> 4) & 0x0f;\r
					*fd-- = px | (px << 4);\r
				}\r
				for (i = 3; i >= 0; i--) {\r
					int px = fds[i] & 0x0f;\r
					*fd-- = px | (px << 4);\r
					px = (fds[i] >> 4) & 0x0f;\r
					*fd-- = px | (px << 4);\r
				}\r
			}\r
		}\r
	}\r
\r
	// load custom font and selector (stored as 1st symbol in font table)\r
	pos = plat_get_skin_dir(buff, sizeof(buff));\r
	strcpy(buff + pos, "font.png");\r
	readpng(menu_font_data, buff, READPNG_FONT,\r
		MENU_X2 ? 256 : 128, MENU_X2 ? 320 : 160);\r
	// default selector symbol is '>'\r
	memcpy(menu_font_data, menu_font_data + ((int)'>') * me_mfont_w * me_mfont_h / 2,\r
		me_mfont_w * me_mfont_h / 2);\r
	strcpy(buff + pos, "selector.png");\r
	readpng(menu_font_data, buff, READPNG_SELECTOR, me_mfont_w, me_mfont_h);\r
\r
	// load custom colors\r
	strcpy(buff + pos, "skin.txt");\r
	f = fopen(buff, "r");\r
	if (f != NULL)\r
	{\r
		lprintf("found skin.txt\n");\r
		while (!feof(f))\r
		{\r
			if (fgets(buff, sizeof(buff), f) == NULL)\r
				break;\r
			if (buff[0] == '#'  || buff[0] == '/')  continue; // comment\r
			if (buff[0] == '\r' || buff[0] == '\n') continue; // empty line\r
			if (strncmp(buff, "text_color=", 11) == 0)\r
			{\r
				int tmp = parse_hex_color(buff+11);\r
				if (tmp >= 0) menu_text_color = tmp;\r
				else lprintf("skin.txt: parse error for text_color\n");\r
			}\r
			else if (strncmp(buff, "selection_color=", 16) == 0)\r
			{\r
				int tmp = parse_hex_color(buff+16);\r
				if (tmp >= 0) menu_sel_color = tmp;\r
				else lprintf("skin.txt: parse error for selection_color\n");\r
			}\r
			else\r
				lprintf("skin.txt: parse error: %s\n", buff);\r
		}\r
		fclose(f);\r
	}\r
\r
	// use user's locale for savestate date display\r
	setlocale(LC_TIME, "");\r
}\r
\r
static void menu_darken_bg(void *dst, void *src, int pixels, int darker)\r
{\r
	unsigned int *dest = dst;\r
	unsigned int *sorc = src;\r
	pixels /= 2;\r
	if (darker)\r
	{\r
		while (pixels--)\r
		{\r
			unsigned int p = *sorc++;\r
			*dest++ = ((p&0xf79ef79e)>>1) - ((p&0xc618c618)>>3);\r
		}\r
	}\r
	else\r
	{\r
		while (pixels--)\r
		{\r
			unsigned int p = *sorc++;\r
			*dest++ = (p&0xf79ef79e)>>1;\r
		}\r
	}\r
}\r
\r
static void menu_darken_text_bg(void)\r
{\r
	int x, y, xmin, xmax, ymax, ls;\r
	unsigned short *screen = g_menuscreen_ptr;\r
\r
	xmin = border_left - 3;\r
	if (xmin < 0)\r
		xmin = 0;\r
	xmax = border_right + 2;\r
	if (xmax > g_menuscreen_w - 1)\r
		xmax = g_menuscreen_w - 1;\r
\r
	y = border_top - 3;\r
	if (y < 0)\r
		y = 0;\r
	ymax = border_bottom + 2;\r
	if (ymax > g_menuscreen_h - 1)\r
		ymax = g_menuscreen_h - 1;\r
\r
	for (x = xmin; x <= xmax; x++)\r
		screen[y * g_menuscreen_w + x] = 0xa514;\r
	for (y++; y < ymax; y++)\r
	{\r
		ls = y * g_menuscreen_w;\r
		screen[ls + xmin] = 0xffff;\r
		for (x = xmin + 1; x < xmax; x++)\r
		{\r
			unsigned int p = screen[ls + x];\r
			if (p != menu_text_color)\r
				screen[ls + x] = ((p&0xf79e)>>1) - ((p&0xc618)>>3);\r
		}\r
		screen[ls + xmax] = 0xffff;\r
	}\r
	ls = y * g_menuscreen_w;\r
	for (x = xmin; x <= xmax; x++)\r
		screen[ls + x] = 0xffff;\r
}\r
\r
static int borders_pending;\r
\r
static void menu_reset_borders(void)\r
{\r
	border_left = g_menuscreen_w;\r
	border_right = 0;\r
	border_top = g_menuscreen_h;\r
	border_bottom = 0;\r
}\r
\r
static void menu_draw_begin(int need_bg, int no_borders)\r
{\r
	plat_video_menu_begin();\r
\r
	menu_reset_borders();\r
	borders_pending = g_border_style && !no_borders;\r
\r
	if (need_bg) {\r
		if (g_border_style && no_borders) {\r
			menu_darken_bg(g_menuscreen_ptr, g_menubg_ptr,\r
				g_menuscreen_w * g_menuscreen_h, 1);\r
		}\r
		else {\r
			memcpy(g_menuscreen_ptr, g_menubg_ptr,\r
				g_menuscreen_w * g_menuscreen_h * 2);\r
		}\r
	}\r
}\r
\r
static void menu_draw_end(void)\r
{\r
	if (borders_pending)\r
		menu_darken_text_bg();\r
	plat_video_menu_end();\r
}\r
\r
static void menu_separation(void)\r
{\r
	if (borders_pending) {\r
		menu_darken_text_bg();\r
		menu_reset_borders();\r
	}\r
}\r
\r
static int me_id2offset(const menu_entry *ent, menu_id id)\r
{\r
	int i;\r
	for (i = 0; ent->name; ent++, i++)\r
		if (ent->id == id) return i;\r
\r
	lprintf("%s: id %i not found\n", __FUNCTION__, id);\r
	return 0;\r
}\r
\r
static void me_enable(menu_entry *entries, menu_id id, int enable)\r
{\r
	int i = me_id2offset(entries, id);\r
	entries[i].enabled = enable;\r
}\r
\r
static int me_count(const menu_entry *ent)\r
{\r
	int ret;\r
\r
	for (ret = 0; ent->name; ent++, ret++)\r
		;\r
\r
	return ret;\r
}\r
\r
static unsigned int me_read_onoff(const menu_entry *ent)\r
{\r
	// guess var size based on mask to avoid reading too much\r
	if (ent->mask & 0xffff0000)\r
		return *(unsigned int *)ent->var & ent->mask;\r
	else if (ent->mask & 0xff00)\r
		return *(unsigned short *)ent->var & ent->mask;\r
	else\r
		return *(unsigned char *)ent->var & ent->mask;\r
}\r
\r
static void me_toggle_onoff(menu_entry *ent)\r
{\r
	// guess var size based on mask to avoid reading too much\r
	if (ent->mask & 0xffff0000)\r
		*(unsigned int *)ent->var ^= ent->mask;\r
	else if (ent->mask & 0xff00)\r
		*(unsigned short *)ent->var ^= ent->mask;\r
	else\r
		*(unsigned char *)ent->var ^= ent->mask;\r
}\r
\r
static void me_draw(const menu_entry *entries, int sel, void (*draw_more)(void))\r
{\r
	const menu_entry *ent, *ent_sel = entries;\r
	int x, y, w = 0, h = 0;\r
	int offs, col2_offs = 27 * me_mfont_w;\r
	int vi_sel_ln = 0;\r
	const char *name;\r
	int i, n;\r
\r
	/* calculate size of menu rect */\r
	for (ent = entries, i = n = 0; ent->name; ent++, i++)\r
	{\r
		int wt;\r
\r
		if (!ent->enabled)\r
			continue;\r
\r
		if (i == sel) {\r
			ent_sel = ent;\r
			vi_sel_ln = n;\r
		}\r
\r
		name = NULL;\r
		wt = strlen(ent->name) * me_mfont_w;\r
		if (wt == 0 && ent->generate_name)\r
			name = ent->generate_name(ent->id, &offs);\r
		if (name != NULL)\r
			wt = strlen(name) * me_mfont_w;\r
\r
		if (ent->beh != MB_NONE)\r
		{\r
			if (wt > col2_offs)\r
				col2_offs = wt + me_mfont_w;\r
			wt = col2_offs;\r
\r
			switch (ent->beh) {\r
			case MB_NONE:\r
				break;\r
			case MB_OPT_ONOFF:\r
			case MB_OPT_RANGE:\r
				wt += me_mfont_w * 3;\r
				break;\r
			case MB_OPT_CUSTOM:\r
			case MB_OPT_CUSTONOFF:\r
			case MB_OPT_CUSTRANGE:\r
				name = NULL;\r
				offs = 0;\r
				if (ent->generate_name != NULL)\r
					name = ent->generate_name(ent->id, &offs);\r
				if (name != NULL)\r
					wt += (strlen(name) + offs) * me_mfont_w;\r
				break;\r
			case MB_OPT_ENUM:\r
				wt += 10 * me_mfont_w;\r
				break;\r
			}\r
		}\r
\r
		if (wt > w)\r
			w = wt;\r
		n++;\r
	}\r
	h = n * me_mfont_h;\r
	w += me_mfont_w * 2; /* selector */\r
\r
	if (w > g_menuscreen_w) {\r
		lprintf("width %d > %d\n", w, g_menuscreen_w);\r
		w = g_menuscreen_w;\r
	}\r
	if (h > g_menuscreen_h) {\r
		lprintf("height %d > %d\n", w, g_menuscreen_h);\r
		h = g_menuscreen_h;\r
	}\r
\r
	x = g_menuscreen_w / 2 - w / 2;\r
	y = g_menuscreen_h / 2 - h / 2;\r
#ifdef MENU_ALIGN_LEFT\r
	if (x > 12) x = 12;\r
#endif\r
\r
	/* draw */\r
	menu_draw_begin(1, 0);\r
	menu_draw_selection(x, y + vi_sel_ln * me_mfont_h, w);\r
	x += me_mfont_w * 2;\r
\r
	for (ent = entries; ent->name; ent++)\r
	{\r
		const char **names;\r
		int len, leftname_end = 0;\r
\r
		if (!ent->enabled)\r
			continue;\r
\r
		name = ent->name;\r
		if (strlen(name) == 0) {\r
			if (ent->generate_name)\r
				name = ent->generate_name(ent->id, &offs);\r
		}\r
		if (name != NULL) {\r
			text_out16(x, y, name);\r
			leftname_end = x + (strlen(name) + 1) * me_mfont_w;\r
		}\r
\r
		switch (ent->beh) {\r
		case MB_NONE:\r
			break;\r
		case MB_OPT_ONOFF:\r
			text_out16(x + col2_offs, y, me_read_onoff(ent) ? "ON" : "OFF");\r
			break;\r
		case MB_OPT_RANGE:\r
			text_out16(x + col2_offs, y, "%i", *(int *)ent->var);\r
			break;\r
		case MB_OPT_CUSTOM:\r
		case MB_OPT_CUSTONOFF:\r
		case MB_OPT_CUSTRANGE:\r
			name = NULL;\r
			offs = 0;\r
			if (ent->generate_name)\r
				name = ent->generate_name(ent->id, &offs);\r
			if (name != NULL)\r
				text_out16(x + col2_offs + offs * me_mfont_w, y, "%s", name);\r
			break;\r
		case MB_OPT_ENUM:\r
			names = (const char **)ent->data;\r
			for (i = 0; names[i] != NULL; i++) {\r
				offs = x + col2_offs;\r
				len = strlen(names[i]);\r
				if (len > 10)\r
					offs += (10 - len - 2) * me_mfont_w;\r
				if (offs < leftname_end)\r
					offs = leftname_end;\r
				if (i == *(unsigned char *)ent->var) {\r
					text_out16(offs, y, "%s", names[i]);\r
					break;\r
				}\r
			}\r
			break;\r
		}\r
\r
		y += me_mfont_h;\r
	}\r
\r
	menu_separation();\r
\r
	/* display help or message if we have one */\r
	h = (g_menuscreen_h - h) / 2; // bottom area height\r
	if (menu_error_msg[0] != 0) {\r
		if (h >= me_mfont_h + 4)\r
			text_out16(5, g_menuscreen_h - me_mfont_h - 4, menu_error_msg);\r
		else\r
			lprintf("menu msg doesn't fit!\n");\r
\r
		if (plat_get_ticks_ms() - menu_error_time > 2048)\r
			menu_error_msg[0] = 0;\r
	}\r
	else if (ent_sel->help != NULL) {\r
		const char *tmp = ent_sel->help;\r
		int l;\r
		for (l = 0; tmp != NULL && *tmp != 0; l++)\r
			tmp = strchr(tmp + 1, '\n');\r
		if (h >= l * me_sfont_h + 4)\r
			for (tmp = ent_sel->help; l > 0; l--, tmp = strchr(tmp, '\n') + 1)\r
				smalltext_out16(5, g_menuscreen_h - (l * me_sfont_h + 4), tmp, 0xffff);\r
	}\r
\r
	menu_separation();\r
\r
	if (draw_more != NULL)\r
		draw_more();\r
\r
	menu_draw_end();\r
}\r
\r
static int me_process(menu_entry *entry, int is_next, int is_lr)\r
{\r
	const char **names;\r
	int c;\r
	switch (entry->beh)\r
	{\r
		case MB_OPT_ONOFF:\r
		case MB_OPT_CUSTONOFF:\r
			me_toggle_onoff(entry);\r
			return 1;\r
		case MB_OPT_RANGE:\r
		case MB_OPT_CUSTRANGE:\r
			c = is_lr ? 10 : 1;\r
			*(int *)entry->var += is_next ? c : -c;\r
			if (*(int *)entry->var < (int)entry->min)\r
				*(int *)entry->var = (int)entry->max;\r
			if (*(int *)entry->var > (int)entry->max)\r
				*(int *)entry->var = (int)entry->min;\r
			return 1;\r
		case MB_OPT_ENUM:\r
			names = (const char **)entry->data;\r
			for (c = 0; names[c] != NULL; c++)\r
				;\r
			*(signed char *)entry->var += is_next ? 1 : -1;\r
			if (*(signed char *)entry->var < 0)\r
				*(signed char *)entry->var = 0;\r
			if (*(signed char *)entry->var >= c)\r
				*(signed char *)entry->var = c - 1;\r
			return 1;\r
		default:\r
			return 0;\r
	}\r
}\r
\r
static void debug_menu_loop(void);\r
\r
static int me_loop_d(menu_entry *menu, int *menu_sel, void (*draw_prep)(void), void (*draw_more)(void))\r
{\r
	int ret = 0, inp, sel = *menu_sel, menu_sel_max;\r
\r
	menu_sel_max = me_count(menu) - 1;\r
	if (menu_sel_max < 0) {\r
		lprintf("no enabled menu entries\n");\r
		return 0;\r
	}\r
\r
	while ((!menu[sel].enabled || !menu[sel].selectable) && sel < menu_sel_max)\r
		sel++;\r
\r
	/* make sure action buttons are not pressed on entering menu */\r
	me_draw(menu, sel, NULL);\r
	while (in_menu_wait_any(NULL, 50) & (PBTN_MOK|PBTN_MBACK|PBTN_MENU));\r
\r
	for (;;)\r
	{\r
		if (draw_prep != NULL)\r
			draw_prep();\r
\r
		me_draw(menu, sel, draw_more);\r
		inp = in_menu_wait(PBTN_UP|PBTN_DOWN|PBTN_LEFT|PBTN_RIGHT|\r
			PBTN_MOK|PBTN_MBACK|PBTN_MENU|PBTN_L|PBTN_R, NULL, 70);\r
		if (inp & (PBTN_MENU|PBTN_MBACK))\r
			break;\r
\r
		if (inp & PBTN_UP  ) {\r
			do {\r
				sel--;\r
				if (sel < 0)\r
					sel = menu_sel_max;\r
			}\r
			while (!menu[sel].enabled || !menu[sel].selectable);\r
		}\r
		if (inp & PBTN_DOWN) {\r
			do {\r
				sel++;\r
				if (sel > menu_sel_max)\r
					sel = 0;\r
			}\r
			while (!menu[sel].enabled || !menu[sel].selectable);\r
		}\r
\r
		/* a bit hacky but oh well */\r
		if ((inp & (PBTN_L|PBTN_R)) == (PBTN_L|PBTN_R))\r
			debug_menu_loop();\r
\r
		if (inp & (PBTN_LEFT|PBTN_RIGHT|PBTN_L|PBTN_R)) { /* multi choice */\r
			if (me_process(&menu[sel], (inp & (PBTN_RIGHT|PBTN_R)) ? 1 : 0,\r
						inp & (PBTN_L|PBTN_R)))\r
				continue;\r
		}\r
\r
		if (inp & (PBTN_MOK|PBTN_LEFT|PBTN_RIGHT|PBTN_L|PBTN_R))\r
		{\r
			/* require PBTN_MOK for MB_NONE */\r
			if (menu[sel].handler != NULL && (menu[sel].beh != MB_NONE || (inp & PBTN_MOK))) {\r
				ret = menu[sel].handler(menu[sel].id, inp);\r
				if (ret) break;\r
				menu_sel_max = me_count(menu) - 1; /* might change, so update */\r
			}\r
		}\r
	}\r
	*menu_sel = sel;\r
\r
	return ret;\r
}\r
\r
static int me_loop(menu_entry *menu, int *menu_sel)\r
{\r
	return me_loop_d(menu, menu_sel, NULL, NULL);\r
}\r
\r
/* ***************************************** */\r
\r
static void draw_menu_message(const char *msg, void (*draw_more)(void))\r
{\r
	int x, y, h, w, wt;\r
	const char *p;\r
\r
	p = msg;\r
	for (h = 1, w = 0; *p != 0; h++) {\r
		for (wt = 0; *p != 0 && *p != '\n'; p++)\r
			wt++;\r
\r
		if (wt > w)\r
			w = wt;\r
		if (*p == 0)\r
			break;\r
		p++;\r
	}\r
\r
	x = g_menuscreen_w / 2 - w * me_mfont_w / 2;\r
	y = g_menuscreen_h / 2 - h * me_mfont_h / 2;\r
	if (x < 0) x = 0;\r
	if (y < 0) y = 0;\r
\r
	menu_draw_begin(1, 0);\r
\r
	for (p = msg; *p != 0 && y <= g_menuscreen_h - me_mfont_h; y += me_mfont_h) {\r
		text_out16(x, y, p);\r
\r
		for (; *p != 0 && *p != '\n'; p++)\r
			;\r
		if (*p != 0)\r
			p++;\r
	}\r
\r
	menu_separation();\r
\r
	if (draw_more != NULL)\r
		draw_more();\r
\r
	menu_draw_end();\r
}\r
\r
// -------------- del confirm ---------------\r
\r
static void do_delete(const char *fpath, const char *fname)\r
{\r
	int len, mid, inp;\r
	const char *nm;\r
	char tmp[64];\r
\r
	menu_draw_begin(1, 0);\r
\r
	len = strlen(fname);\r
	if (len > g_menuscreen_w / me_sfont_w)\r
		len = g_menuscreen_w / me_sfont_w;\r
\r
	mid = g_menuscreen_w / 2;\r
	text_out16(mid - me_mfont_w * 15 / 2,  8 * me_mfont_h, "About to delete");\r
	smalltext_out16(mid - len * me_sfont_w / 2, 9 * me_mfont_h + 5, fname, 0xbdff);\r
	text_out16(mid - me_mfont_w * 13 / 2, 11 * me_mfont_h, "Are you sure?");\r
\r
	nm = in_get_key_name(-1, -PBTN_MA3);\r
	snprintf(tmp, sizeof(tmp), "(%s - confirm, ", nm);\r
	len = strlen(tmp);\r
	nm = in_get_key_name(-1, -PBTN_MBACK);\r
	snprintf(tmp + len, sizeof(tmp) - len, "%s - cancel)", nm);\r
	len = strlen(tmp);\r
\r
	text_out16(mid - me_mfont_w * len / 2, 12 * me_mfont_h, tmp);\r
	menu_draw_end();\r
\r
	while (in_menu_wait_any(NULL, 50) & (PBTN_MENU|PBTN_MA2));\r
	inp = in_menu_wait(PBTN_MA3|PBTN_MBACK, NULL, 100);\r
	if (inp & PBTN_MA3)\r
		remove(fpath);\r
}\r
\r
// -------------- ROM selector --------------\r
\r
static void draw_dirlist(char *curdir, struct dirent **namelist,\r
	int n, int sel, int show_help)\r
{\r
	int max_cnt, start, i, x, pos;\r
	void *darken_ptr;\r
	char buff[64];\r
\r
	max_cnt = g_menuscreen_h / me_sfont_h;\r
	start = max_cnt / 2 - sel;\r
	n--; // exclude current dir (".")\r
\r
	menu_draw_begin(1, 1);\r
\r
//	if (!rom_loaded)\r
//		menu_darken_bg(gp2x_screen, 320*240, 0);\r
\r
	darken_ptr = (short *)g_menuscreen_ptr + g_menuscreen_w * max_cnt/2 * me_sfont_h;\r
	menu_darken_bg(darken_ptr, darken_ptr, g_menuscreen_w * me_sfont_h * 8 / 10, 0);\r
\r
	x = 5 + me_mfont_w + 1;\r
	if (start - 2 >= 0)\r
		smalltext_out16(14, (start - 2) * me_sfont_h, curdir, 0xffff);\r
	for (i = 0; i < n; i++) {\r
		pos = start + i;\r
		if (pos < 0)  continue;\r
		if (pos >= max_cnt) break;\r
		if (namelist[i+1]->d_type == DT_DIR) {\r
			smalltext_out16(x, pos * me_sfont_h, "/", 0xfff6);\r
			smalltext_out16(x + me_sfont_w, pos * me_sfont_h, namelist[i+1]->d_name, 0xfff6);\r
		} else {\r
			unsigned short color = fname2color(namelist[i+1]->d_name);\r
			smalltext_out16(x, pos * me_sfont_h, namelist[i+1]->d_name, color);\r
		}\r
	}\r
	smalltext_out16(5, max_cnt/2 * me_sfont_h, ">", 0xffff);\r
\r
	if (show_help) {\r
		darken_ptr = (short *)g_menuscreen_ptr\r
			+ g_menuscreen_w * (g_menuscreen_h - me_sfont_h * 5 / 2);\r
		menu_darken_bg(darken_ptr, darken_ptr,\r
			g_menuscreen_w * (me_sfont_h * 5 / 2), 1);\r
\r
		snprintf(buff, sizeof(buff), "%s - select, %s - back",\r
			in_get_key_name(-1, -PBTN_MOK), in_get_key_name(-1, -PBTN_MBACK));\r
		smalltext_out16(x, g_menuscreen_h - me_sfont_h * 3 - 2, buff, 0xe78c);\r
\r
		snprintf(buff, sizeof(buff), g_menu_filter_off ?\r
			 "%s - hide unknown files" : "%s - show all files",\r
			in_get_key_name(-1, -PBTN_MA3));\r
		smalltext_out16(x, g_menuscreen_h - me_sfont_h * 2 - 2, buff, 0xe78c);\r
\r
		snprintf(buff, sizeof(buff), g_autostateld_opt ?\r
			 "%s - autoload save is ON" : "%s - autoload save is OFF",\r
			in_get_key_name(-1, -PBTN_MA2));\r
		smalltext_out16(x, g_menuscreen_h - me_sfont_h * 1 - 2, buff, 0xe78c);\r
	}\r
\r
	menu_draw_end();\r
}\r
\r
static int scandir_cmp(const void *p1, const void *p2)\r
{\r
	const struct dirent **d1 = (const struct dirent **)p1;\r
	const struct dirent **d2 = (const struct dirent **)p2;\r
	if ((*d1)->d_type == (*d2)->d_type)\r
		return alphasort(d1, d2);\r
	if ((*d1)->d_type == DT_DIR)\r
		return -1; // put before\r
	if ((*d2)->d_type == DT_DIR)\r
		return  1;\r
\r
	return alphasort(d1, d2);\r
}\r
\r
static const char **filter_exts_internal;\r
\r
static int scandir_filter(const struct dirent *ent)\r
{\r
	const char **filter = filter_exts_internal;\r
	const char *ext;\r
	int i;\r
\r
	if (ent == NULL || ent->d_name == NULL)\r
		return 0;\r
\r
	if (ent->d_type == DT_DIR)\r
		return 1;\r
\r
	ext = strrchr(ent->d_name, '.');\r
	if (ext == NULL)\r
		return 0;\r
\r
	ext++;\r
	for (i = 0; filter[i] != NULL; i++)\r
		if (strcasecmp(ext, filter[i]) == 0)\r
			return 1;\r
\r
	return 0;\r
}\r
\r
static int dirent_seek_char(struct dirent **namelist, int len, int sel, char c)\r
{\r
	int i;\r
\r
	sel++;\r
	for (i = sel + 1; ; i++) {\r
		if (i >= len)\r
			i = 1;\r
		if (i == sel)\r
			break;\r
\r
		if (tolower_simple(namelist[i]->d_name[0]) == c)\r
			break;\r
	}\r
\r
	return i - 1;\r
}\r
\r
static const char *menu_loop_romsel(char *curr_path, int len,\r
	const char **filter_exts,\r
	int (*extra_filter)(struct dirent **namelist, int count,\r
			    const char *basedir))\r
{\r
	static char rom_fname_reload[256]; // used for return\r
	char sel_fname[256];\r
	int (*filter)(const struct dirent *);\r
	struct dirent **namelist = NULL;\r
	int n = 0, inp = 0, sel = 0, show_help = 0;\r
	char *curr_path_restore = NULL;\r
	const char *ret = NULL;\r
	char cinp;\r
\r
	filter_exts_internal = filter_exts;\r
	sel_fname[0] = 0;\r
\r
	// is this a dir or a full path?\r
	if (!plat_is_dir(curr_path)) {\r
		char *p = strrchr(curr_path, '/');\r
		if (p != NULL) {\r
			*p = 0;\r
			curr_path_restore = p;\r
			snprintf(sel_fname, sizeof(sel_fname), "%s", p + 1);\r
		}\r
\r
		if (rom_fname_reload[0] == 0)\r
			show_help = 2;\r
	}\r
\r
rescan:\r
	if (namelist != NULL) {\r
		while (n-- > 0)\r
			free(namelist[n]);\r
		free(namelist);\r
		namelist = NULL;\r
	}\r
\r
	filter = NULL;\r
	if (!g_menu_filter_off)\r
		filter = scandir_filter;\r
\r
	n = scandir(curr_path, &namelist, filter, (void *)scandir_cmp);\r
	if (n < 0) {\r
		char *t;\r
		lprintf("menu_loop_romsel failed, dir: %s\n", curr_path);\r
\r
		// try root\r
		t = getcwd(curr_path, len);\r
		if (t == NULL)\r
			plat_get_root_dir(curr_path, len);\r
		n = scandir(curr_path, &namelist, filter, (void *)scandir_cmp);\r
		if (n < 0) {\r
			// oops, we failed\r
			lprintf("menu_loop_romsel failed, dir: %s\n", curr_path);\r
			return NULL;\r
		}\r
	}\r
\r
	if (!g_menu_filter_off && extra_filter != NULL)\r
		n = extra_filter(namelist, n, curr_path);\r
\r
	// try to find selected file\r
	// note: we don't show '.' so sel is namelist index - 1\r
	sel = 0;\r
	if (sel_fname[0] != 0) {\r
		int i;\r
		for (i = 1; i < n; i++) {\r
			char *dname = namelist[i]->d_name;\r
			if (dname[0] == sel_fname[0] && strcmp(dname, sel_fname) == 0) {\r
				sel = i - 1;\r
				break;\r
			}\r
		}\r
	}\r
\r
	/* make sure action buttons are not pressed on entering menu */\r
	draw_dirlist(curr_path, namelist, n, sel, show_help);\r
	while (in_menu_wait_any(NULL, 50) & (PBTN_MOK|PBTN_MBACK|PBTN_MENU))\r
		;\r
\r
	for (;;)\r
	{\r
		draw_dirlist(curr_path, namelist, n, sel, show_help);\r
		inp = in_menu_wait(PBTN_UP|PBTN_DOWN|PBTN_LEFT|PBTN_RIGHT\r
			| PBTN_L|PBTN_R|PBTN_MA2|PBTN_MA3|PBTN_MOK|PBTN_MBACK\r
			| PBTN_MENU|PBTN_CHAR, &cinp, 33);\r
		if (inp & PBTN_MA3)   {\r
			g_menu_filter_off = !g_menu_filter_off;\r
			snprintf(sel_fname, sizeof(sel_fname), "%s",\r
				namelist[sel+1]->d_name);\r
			goto rescan;\r
		}\r
		if (inp & PBTN_UP  )  { sel--;   if (sel < 0)   sel = n-2; }\r
		if (inp & PBTN_DOWN)  { sel++;   if (sel > n-2) sel = 0; }\r
		if (inp & PBTN_LEFT)  { sel-=10; if (sel < 0)   sel = 0; }\r
		if (inp & PBTN_L)     { sel-=24; if (sel < 0)   sel = 0; }\r
		if (inp & PBTN_RIGHT) { sel+=10; if (sel > n-2) sel = n-2; }\r
		if (inp & PBTN_R)     { sel+=24; if (sel > n-2) sel = n-2; }\r
\r
		if ((inp & PBTN_MOK) || (inp & (PBTN_MENU|PBTN_MA2)) == (PBTN_MENU|PBTN_MA2))\r
		{\r
			again:\r
			if (namelist[sel+1]->d_type == DT_REG)\r
			{\r
				snprintf(rom_fname_reload, sizeof(rom_fname_reload),\r
					"%s/%s", curr_path, namelist[sel+1]->d_name);\r
				if (inp & PBTN_MOK) { // return sel\r
					ret = rom_fname_reload;\r
					break;\r
				}\r
				do_delete(rom_fname_reload, namelist[sel+1]->d_name);\r
				goto rescan;\r
			}\r
			else if (namelist[sel+1]->d_type == DT_DIR)\r
			{\r
				int newlen;\r
				char *p, *newdir;\r
				if (!(inp & PBTN_MOK))\r
					continue;\r
				newlen = strlen(curr_path) + strlen(namelist[sel+1]->d_name) + 2;\r
				newdir = malloc(newlen);\r
				if (newdir == NULL)\r
					break;\r
				if (strcmp(namelist[sel+1]->d_name, "..") == 0) {\r
					char *start = curr_path;\r
					p = start + strlen(start) - 1;\r
					while (*p == '/' && p > start) p--;\r
					while (*p != '/' && p > start) p--;\r
					if (p <= start) strcpy(newdir, "/");\r
					else { strncpy(newdir, start, p-start); newdir[p-start] = 0; }\r
				} else {\r
					strcpy(newdir, curr_path);\r
					p = newdir + strlen(newdir) - 1;\r
					while (*p == '/' && p >= newdir) *p-- = 0;\r
					strcat(newdir, "/");\r
					strcat(newdir, namelist[sel+1]->d_name);\r
				}\r
				ret = menu_loop_romsel(newdir, newlen, filter_exts, extra_filter);\r
				free(newdir);\r
				break;\r
			}\r
			else\r
			{\r
				// unknown file type, happens on NTFS mounts. Try to guess.\r
				FILE *tstf; int tmp;\r
				snprintf(rom_fname_reload, sizeof(rom_fname_reload),\r
					"%s/%s", curr_path, namelist[sel+1]->d_name);\r
				tstf = fopen(rom_fname_reload, "rb");\r
				if (tstf != NULL)\r
				{\r
					if (fread(&tmp, 1, 1, tstf) > 0 || ferror(tstf) == 0)\r
						namelist[sel+1]->d_type = DT_REG;\r
					else	namelist[sel+1]->d_type = DT_DIR;\r
					fclose(tstf);\r
					goto again;\r
				}\r
			}\r
		}\r
		else if (inp & PBTN_MA2) {\r
			g_autostateld_opt = !g_autostateld_opt;\r
			show_help = 3;\r
		}\r
		else if (inp & PBTN_CHAR) {\r
			// must be last\r
			sel = dirent_seek_char(namelist, n, sel, cinp);\r
		}\r
\r
		if (inp & PBTN_MBACK)\r
			break;\r
\r
		if (show_help > 0)\r
			show_help--;\r
	}\r
\r
	if (n > 0) {\r
		while (n-- > 0)\r
			free(namelist[n]);\r
		free(namelist);\r
	}\r
\r
	// restore curr_path\r
	if (curr_path_restore != NULL)\r
		*curr_path_restore = '/';\r
\r
	return ret;\r
}\r
\r
// ------------ savestate loader ------------\r
\r
#define STATE_SLOT_COUNT 10\r
\r
static int state_slot_flags = 0;\r
static int state_slot_times[STATE_SLOT_COUNT];\r
\r
static void state_check_slots(void)\r
{\r
	int slot;\r
\r
	state_slot_flags = 0;\r
\r
	for (slot = 0; slot < STATE_SLOT_COUNT; slot++) {\r
		state_slot_times[slot] = 0;\r
		if (emu_check_save_file(slot, &state_slot_times[slot]))\r
			state_slot_flags |= 1 << slot;\r
	}\r
}\r
\r
static void draw_savestate_bg(int slot);\r
\r
static void draw_savestate_menu(int menu_sel, int is_loading)\r
{\r
	int i, x, y, w, h;\r
	char time_buf[32];\r
\r
	if (state_slot_flags & (1 << menu_sel))\r
		draw_savestate_bg(menu_sel);\r
\r
	w = (13 + 2) * me_mfont_w;\r
	h = (1+2+STATE_SLOT_COUNT+1) * me_mfont_h;\r
	x = g_menuscreen_w / 2 - w / 2;\r
	if (x < 0) x = 0;\r
	y = g_menuscreen_h / 2 - h / 2;\r
	if (y < 0) y = 0;\r
#ifdef MENU_ALIGN_LEFT\r
	if (x > 12 + me_mfont_w * 2)\r
		x = 12 + me_mfont_w * 2;\r
#endif\r
\r
	menu_draw_begin(1, 1);\r
\r
	text_out16(x, y, is_loading ? "Load state" : "Save state");\r
	y += 3 * me_mfont_h;\r
\r
	menu_draw_selection(x - me_mfont_w * 2, y + menu_sel * me_mfont_h, (23 + 2) * me_mfont_w + 4);\r
\r
	/* draw all slots */\r
	for (i = 0; i < STATE_SLOT_COUNT; i++, y += me_mfont_h)\r
	{\r
		if (!(state_slot_flags & (1 << i)))\r
			strcpy(time_buf, "free");\r
		else {\r
			strcpy(time_buf, "USED");\r
			if (state_slot_times[i] != 0) {\r
				time_t time = state_slot_times[i];\r
				struct tm *t = localtime(&time);\r
				strftime(time_buf, sizeof(time_buf), "%x %R", t);\r
			}\r
		}\r
\r
		text_out16(x, y, "SLOT %i (%s)", i, time_buf);\r
	}\r
	text_out16(x, y, "back");\r
\r
	menu_draw_end();\r
}\r
\r
static int menu_loop_savestate(int is_loading)\r
{\r
	static int menu_sel = STATE_SLOT_COUNT;\r
	int menu_sel_max = STATE_SLOT_COUNT;\r
	unsigned long inp = 0;\r
	int ret = 0;\r
\r
	state_check_slots();\r
\r
	if (!(state_slot_flags & (1 << menu_sel)) && is_loading)\r
		menu_sel = menu_sel_max;\r
\r
	for (;;)\r
	{\r
		draw_savestate_menu(menu_sel, is_loading);\r
		inp = in_menu_wait(PBTN_UP|PBTN_DOWN|PBTN_MOK|PBTN_MBACK, NULL, 100);\r
		if (inp & PBTN_UP) {\r
			do {\r
				menu_sel--;\r
				if (menu_sel < 0)\r
					menu_sel = menu_sel_max;\r
			} while (!(state_slot_flags & (1 << menu_sel)) && menu_sel != menu_sel_max && is_loading);\r
		}\r
		if (inp & PBTN_DOWN) {\r
			do {\r
				menu_sel++;\r
				if (menu_sel > menu_sel_max)\r
					menu_sel = 0;\r
			} while (!(state_slot_flags & (1 << menu_sel)) && menu_sel != menu_sel_max && is_loading);\r
		}\r
		if (inp & PBTN_MOK) { // save/load\r
			if (menu_sel < STATE_SLOT_COUNT) {\r
				state_slot = menu_sel;\r
				if (emu_save_load_game(is_loading, 0)) {\r
					menu_update_msg(is_loading ? "Load failed" : "Save failed");\r
					break;\r
				}\r
				ret = 1;\r
				break;\r
			}\r
			break;\r
		}\r
		if (inp & PBTN_MBACK)\r
			break;\r
	}\r
\r
	return ret;\r
}\r
\r
// -------------- key config --------------\r
\r
static char *action_binds(int player_idx, int action_mask, int dev_id)\r
{\r
	int dev = 0, dev_last = IN_MAX_DEVS - 1;\r
	int can_combo = 1, type;\r
\r
	static_buff[0] = 0;\r
\r
	type = IN_BINDTYPE_EMU;\r
	if (player_idx >= 0) {\r
		can_combo = 0;\r
		type = IN_BINDTYPE_PLAYER12;\r
	}\r
	if (player_idx == 1)\r
		action_mask <<= 16;\r
\r
	if (dev_id >= 0)\r
		dev = dev_last = dev_id;\r
\r
	for (; dev <= dev_last; dev++) {\r
		int k, count = 0, combo = 0;\r
		const int *binds;\r
\r
		binds = in_get_dev_binds(dev);\r
		if (binds == NULL)\r
			continue;\r
\r
		in_get_config(dev, IN_CFG_BIND_COUNT, &count);\r
		in_get_config(dev, IN_CFG_DOES_COMBOS, &combo);\r
		combo = combo && can_combo;\r
\r
		for (k = 0; k < count; k++) {\r
			const char *xname;\r
			int len;\r
\r
			if (!(binds[IN_BIND_OFFS(k, type)] & action_mask))\r
				continue;\r
\r
			xname = in_get_key_name(dev, k);\r
			len = strlen(static_buff);\r
			if (len) {\r
				strncat(static_buff, combo ? " + " : ", ",\r
					sizeof(static_buff) - len - 1);\r
				len += combo ? 3 : 2;\r
			}\r
			strncat(static_buff, xname, sizeof(static_buff) - len - 1);\r
		}\r
	}\r
\r
	return static_buff;\r
}\r
\r
static int count_bound_keys(int dev_id, int action_mask, int bindtype)\r
{\r
	const int *binds;\r
	int k, keys = 0;\r
	int count = 0;\r
\r
	binds = in_get_dev_binds(dev_id);\r
	if (binds == NULL)\r
		return 0;\r
\r
	in_get_config(dev_id, IN_CFG_BIND_COUNT, &count);\r
	for (k = 0; k < count; k++)\r
	{\r
		if (binds[IN_BIND_OFFS(k, bindtype)] & action_mask)\r
			keys++;\r
	}\r
\r
	return keys;\r
}\r
\r
static void draw_key_config(const me_bind_action *opts, int opt_cnt, int player_idx,\r
		int sel, int dev_id, int dev_count, int is_bind)\r
{\r
	char buff[64], buff2[32];\r
	const char *dev_name;\r
	int x, y, w, i;\r
\r
	w = ((player_idx >= 0) ? 20 : 30) * me_mfont_w;\r
	x = g_menuscreen_w / 2 - w / 2;\r
	y = (g_menuscreen_h - 4 * me_mfont_h) / 2 - (2 + opt_cnt) * me_mfont_h / 2;\r
	if (x < me_mfont_w * 2)\r
		x = me_mfont_w * 2;\r
\r
	menu_draw_begin(1, 0);\r
	if (player_idx >= 0)\r
		text_out16(x, y, "Player %i controls", player_idx + 1);\r
	else\r
		text_out16(x, y, "Emulator controls");\r
\r
	y += 2 * me_mfont_h;\r
	menu_draw_selection(x - me_mfont_w * 2, y + sel * me_mfont_h, w + 2 * me_mfont_w);\r
\r
	for (i = 0; i < opt_cnt; i++, y += me_mfont_h)\r
		text_out16(x, y, "%s : %s", opts[i].name,\r
			action_binds(player_idx, opts[i].mask, dev_id));\r
\r
	menu_separation();\r
\r
	if (dev_id < 0)\r
		dev_name = "(all devices)";\r
	else\r
		dev_name = in_get_dev_name(dev_id, 0, 1);\r
	w = strlen(dev_name) * me_mfont_w;\r
	if (w < 30 * me_mfont_w)\r
		w = 30 * me_mfont_w;\r
	if (w > g_menuscreen_w)\r
		w = g_menuscreen_w;\r
\r
	x = g_menuscreen_w / 2 - w / 2;\r
\r
	if (!is_bind) {\r
		snprintf(buff2, sizeof(buff2), "%s", in_get_key_name(-1, -PBTN_MOK));\r
		snprintf(buff, sizeof(buff), "%s - bind, %s - clear", buff2,\r
				in_get_key_name(-1, -PBTN_MA2));\r
		text_out16(x, g_menuscreen_h - 4 * me_mfont_h, buff);\r
	}\r
	else\r
		text_out16(x, g_menuscreen_h - 4 * me_mfont_h, "Press a button to bind/unbind");\r
\r
	if (dev_count > 1) {\r
		text_out16(x, g_menuscreen_h - 3 * me_mfont_h, dev_name);\r
		text_out16(x, g_menuscreen_h - 2 * me_mfont_h, "Press left/right for other devs");\r
	}\r
\r
	menu_draw_end();\r
}\r
\r
static void key_config_loop(const me_bind_action *opts, int opt_cnt, int player_idx)\r
{\r
	int i, sel = 0, menu_sel_max = opt_cnt - 1, does_combos = 0;\r
	int dev_id, bind_dev_id, dev_count, kc, is_down, mkey;\r
	int unbind, bindtype, mask_shift;\r
\r
	for (i = 0, dev_id = -1, dev_count = 0; i < IN_MAX_DEVS; i++) {\r
		if (in_get_dev_name(i, 1, 0) != NULL) {\r
			dev_count++;\r
			if (dev_id < 0)\r
				dev_id = i;\r
		}\r
	}\r
\r
	if (dev_id == -1) {\r
		lprintf("no devs, can't do config\n");\r
		return;\r
	}\r
\r
	dev_id = -1; // show all\r
	mask_shift = 0;\r
	if (player_idx == 1)\r
		mask_shift = 16;\r
	bindtype = player_idx >= 0 ? IN_BINDTYPE_PLAYER12 : IN_BINDTYPE_EMU;\r
\r
	for (;;)\r
	{\r
		draw_key_config(opts, opt_cnt, player_idx, sel, dev_id, dev_count, 0);\r
		mkey = in_menu_wait(PBTN_UP|PBTN_DOWN|PBTN_LEFT|PBTN_RIGHT\r
				|PBTN_MBACK|PBTN_MOK|PBTN_MA2, NULL, 100);\r
		switch (mkey) {\r
			case PBTN_UP:   sel--; if (sel < 0) sel = menu_sel_max; continue;\r
			case PBTN_DOWN: sel++; if (sel > menu_sel_max) sel = 0; continue;\r
			case PBTN_LEFT:\r
				for (i = 0, dev_id--; i < IN_MAX_DEVS + 1; i++, dev_id--) {\r
					if (dev_id < -1)\r
						dev_id = IN_MAX_DEVS - 1;\r
					if (dev_id == -1 || in_get_dev_name(dev_id, 0, 0) != NULL)\r
						break;\r
				}\r
				continue;\r
			case PBTN_RIGHT:\r
				for (i = 0, dev_id++; i < IN_MAX_DEVS; i++, dev_id++) {\r
					if (dev_id >= IN_MAX_DEVS)\r
						dev_id = -1;\r
					if (dev_id == -1 || in_get_dev_name(dev_id, 0, 0) != NULL)\r
						break;\r
				}\r
				continue;\r
			case PBTN_MBACK:\r
				return;\r
			case PBTN_MOK:\r
				if (sel >= opt_cnt)\r
					return;\r
				while (in_menu_wait_any(NULL, 30) & PBTN_MOK)\r
					;\r
				break;\r
			case PBTN_MA2:\r
				in_unbind_all(dev_id, opts[sel].mask << mask_shift, bindtype);\r
				continue;\r
			default:continue;\r
		}\r
\r
		draw_key_config(opts, opt_cnt, player_idx, sel, dev_id, dev_count, 1);\r
\r
		/* wait for some up event */\r
		for (is_down = 1; is_down; )\r
			kc = in_update_keycode(&bind_dev_id, &is_down, NULL, -1);\r
\r
		i = count_bound_keys(bind_dev_id, opts[sel].mask << mask_shift, bindtype);\r
		unbind = (i > 0);\r
\r
		/* allow combos if device supports them */\r
		in_get_config(bind_dev_id, IN_CFG_DOES_COMBOS, &does_combos);\r
		if (i == 1 && bindtype == IN_BINDTYPE_EMU && does_combos)\r
			unbind = 0;\r
\r
		if (unbind)\r
			in_unbind_all(bind_dev_id, opts[sel].mask << mask_shift, bindtype);\r
\r
		in_bind_key(bind_dev_id, kc, opts[sel].mask << mask_shift, bindtype, 0);\r
	}\r
}\r
\r