Prepare code to ask for a hotkey. Prepare a temporary fast-forward switch.

6 files changed, 98 insertions, 5 deletions

diff --git a/source/nds/draw.c b/source/nds/draw.c
index 6799836..b6916a3 100644
--- a/source/nds/draw.c
+++ b/source/nds/draw.c
@@ -830,6 +830,84 @@ u32 draw_yesno_dialog(enum SCREEN_ID screen, u32 sy, char *yes, char *no)
 }
 
 /*
+*	Draw hotkey dialog
+*	Returns DS keys pressed, as in ds2io.h.
+*/
+u32 draw_hotkey_dialog(enum SCREEN_ID screen, u32 sy, char *clear, char *cancel)
+{
+    u16 unicode[8];
+    u32 len, width, box_width, i;
+    char *string;
+	void* screen_addr;
+
+    len= 0;
+    string= clear;
+    while(*string)
+    {
+        string= utf8decode(string, &unicode[len]);
+        if(unicode[len] != 0x0D && unicode[len] != 0x0A)
+        {
+            if(len < 8) len++;
+            else break;
+        }
+    }
+    width= BDF_cut_unicode(unicode, len, 0, 3);
+    
+    len= 0;
+    string= cancel;
+    while(*string)
+    {
+        string= utf8decode(string, &unicode[len]);
+        if(unicode[len] != 0x0D && unicode[len] != 0x0A)
+        {
+            if(len < 8) len++;
+            else    break;
+        }
+    }
+    i= BDF_cut_unicode(unicode, len, 0, 3);
+
+    if(width < i)   width= i;
+    box_width= 64;
+    if(box_width < (width +6)) box_width = width +6;
+
+	if(screen & UP_MASK)
+		screen_addr = up_screen_addr;
+	else
+		screen_addr = down_screen_addr;
+
+    i= SCREEN_WIDTH/2 - box_width - 2;
+	show_icon((unsigned short*)screen_addr, &ICON_BUTTON, 49, 128);
+    draw_string_vcenter((unsigned short*)screen_addr, 51, 130, 73, COLOR_WHITE, clear);
+
+    i= SCREEN_WIDTH/2 + 3;
+	show_icon((unsigned short*)screen_addr, &ICON_BUTTON, 136, 128);
+    draw_string_vcenter((unsigned short*)screen_addr, 138, 130, 73, COLOR_WHITE, cancel);
+
+	ds2_flipScreen(screen, 2);
+
+	// While there are no keys pressed, wait for keys.
+	struct key_buf inputdata;
+	do {
+		mdelay(1);
+		ds2_getrawInput(&inputdata);
+	} while (inputdata.key == 0);
+
+	// Now, while there are keys pressed, keep a tally of keys that have
+	// been pressed. (IGNORE TOUCH AND LID! Otherwise, closing the lid or
+	// touching to get to the menu will do stuff the user doesn't expect.
+	// Also ignore the direction pad because every game uses it.)
+	u32 TotalKeys = inputdata.key;
+
+	do {
+		mdelay(1);
+		ds2_getrawInput(&inputdata);
+		TotalKeys |= inputdata.key & ~(KEY_TOUCH | KEY_LID | KEY_UP | KEY_DOWN | KEY_LEFT | KEY_RIGHT);
+	} while (inputdata.key != 0);
+
+	return TotalKeys;
+}
+
+/*
 *	Drawing progress bar
 */
 static enum SCREEN_ID _progress_screen_id;
diff --git a/source/nds/draw.h b/source/nds/draw.h
index c57624e..2b27473 100644
--- a/source/nds/draw.h
+++ b/source/nds/draw.h
@@ -177,6 +177,7 @@ extern void show_progress(char *text);
 extern void scrollbar(void* screen_addr, u32 sx, u32 sy, u32 ex, u32 ey, u32 all, u32 view, u32 now);
 extern u32 yesno_dialog(char *text);
 extern u32 draw_yesno_dialog(enum SCREEN_ID screen, u32 sy, char *yes, char *no);
+extern u32 draw_hotkey_dialog(enum SCREEN_ID screen, u32 sy, char *clear, char *cancel);
 extern void msg_screen_init(const char *title);
 extern void msg_screen_draw();
 extern void msg_printf(const char *text, ...);
diff --git a/source/nds/entry.cpp b/source/nds/entry.cpp
index 7852bc9..1fb5bd8 100644
--- a/source/nds/entry.cpp
+++ b/source/nds/entry.cpp
@@ -588,8 +588,6 @@ static unsigned int sync_last= 0;
 static unsigned int sync_next = 0;
 static unsigned int auto_equivalent_skip = 0;
 
-extern "C" u32 game_fast_forward;
-
 static unsigned int skip_rate= 0;
 
 void S9xSyncSpeed ()
@@ -607,7 +605,7 @@ void S9xSyncSpeed ()
 #endif
 	syncnow = getSysTime();
 
-	if (game_fast_forward)
+	if (game_fast_forward || temporary_fast_forward /* hotkey is held */)
 	{
 		sync_last = syncnow;
 		sync_next = syncnow;
@@ -620,7 +618,7 @@ void S9xSyncSpeed ()
 			IPPU.RenderThisFrame = true;
 		}
 	}
-	else if (Settings.SkipFrames == AUTO_FRAMERATE /* && !game_fast_forward */)
+	else if (Settings.SkipFrames == AUTO_FRAMERATE /* && !game_fast_forward && !temporary_fast_forward */)
 	{
 		// frame_time is in getSysTime units: 42.667 microseconds.
 		int32 frame_time = Settings.PAL ? 468 /* = 20.0 ms */ : 391 /* = 16.67 ms */;
@@ -701,7 +699,7 @@ void S9xSyncSpeed ()
 		}
 #endif
 	}
-	else /* if (Settings.SkipFrames != AUTO_FRAMERATE && !game_fast_forward) */
+	else /* if (Settings.SkipFrames != AUTO_FRAMERATE && !game_fast_forward && !temporary_fast_forward) */
 	{
 		// frame_time is in getSysTime units: 42.667 microseconds.
 		uint32 frame_time = Settings.PAL ? 468 /* = 20.0 ms */ : 391 /* = 16.67 ms */;
diff --git a/source/nds/gui.c b/source/nds/gui.c
index 0a0a82a..1582b16 100644
--- a/source/nds/gui.c
+++ b/source/nds/gui.c
@@ -84,6 +84,16 @@ static int32 latest_save; // Slot number of the latest (in time) save for this g
 static bool8 SavedStateExistenceCached [SAVE_STATE_SLOT_NUM]; // [I] == TRUE if Cache[I] is meaningful
 static bool8 SavedStateExistenceCache [SAVE_STATE_SLOT_NUM];
 
+// These are U+05C8 and subsequent codepoints encoded in UTF-8.
+const uint8 HOTKEY_A_DISPLAY[] = {0xD7, 0x88, 0x00};
+const uint8 HOTKEY_B_DISPLAY[] = {0xD7, 0x89, 0x00};
+const uint8 HOTKEY_X_DISPLAY[] = {0xD7, 0x8A, 0x00};
+const uint8 HOTKEY_Y_DISPLAY[] = {0xD7, 0x8B, 0x00};
+const uint8 HOTKEY_L_DISPLAY[] = {0xD7, 0x8C, 0x00};
+const uint8 HOTKEY_R_DISPLAY[] = {0xD7, 0x8D, 0x00};
+const uint8 HOTKEY_START_DISPLAY[] = {0xD7, 0x8E, 0x00};
+const uint8 HOTKEY_SELECT_DISPLAY[] = {0xD7, 0x8F, 0x00};
+
 #define MAKE_MENU(name, init_function, passive_function, key_function, end_function, \
 	focus_option, screen_focus)												  \
   MENU_TYPE name##_menu =                                                     \
@@ -270,6 +280,7 @@ char DEFAULT_CFG_DIR[MAX_PATH];
 char DEFAULT_SS_DIR[MAX_PATH];
 char DEFAULT_CHEAT_DIR[MAX_PATH];
 u32 game_fast_forward= 0;
+u32 temporary_fast_forward = 0;
 u32 game_enable_audio = 1;
 
 
diff --git a/source/nds/gui.h b/source/nds/gui.h
index 5c1fbd1..d733ee5 100644
--- a/source/nds/gui.h
+++ b/source/nds/gui.h
@@ -145,6 +145,8 @@ extern char rom_path[MAX_PATH];
 
 extern u32 game_enable_audio;
 extern u32 clock_speed_number;
+extern u32 game_fast_forward;
+extern u32 temporary_fast_forward;
 
 /******************************************************************************
  ******************************************************************************/
diff --git a/source/nds/message.h b/source/nds/message.h
index f1de990..0aff8d9 100644
--- a/source/nds/message.h
+++ b/source/nds/message.h
@@ -53,6 +53,9 @@ enum MSG
 	MSG_HOTKEY_MAIN_MENU,               // currently unused
 	MSG_HOTKEY_TEMPORARY_FAST_FORWARD,  // currently unused
 	MSG_HOTKEY_SOUND_TOGGLE,            // currently unused
+	MSG_PROGRESS_HOTKEY_WAITING_FOR_KEYS, // currently unused
+	MSG_HOTKEY_DELETE_WITH_A,           // currently unused
+	MSG_HOTKEY_CANCEL_WITH_B,           // currently unused
 	MSG_LOAD_GAME_RECENTLY_PLAYED,
 	MSG_LOAD_GAME_FROM_CARD,
 	MSG_LOAD_GAME_MENU_TITLE,