1 /*---------------------------------------------------------------------------*
2 Project: TwlSDK - screenshot test - Ext
3 File: ext_keycontrol.h
4
5 Copyright 2003-2008 Nintendo. All rights reserved.
6
7 These coded instructions, statements, and computer programs contain
8 proprietary information of Nintendo of America Inc. and/or Nintendo
9 Company Ltd., and are protected by Federal copyright law. They may
10 not be disclosed to third parties or copied or duplicated in any form,
11 in whole or in part, without the prior written consent of Nintendo.
12
13 $Date:: 2008-09-18#$
14 $Rev: 8573 $
15 $Author: okubata_ryoma $
16 *---------------------------------------------------------------------------*/
17
18 #include <nitro/types.h>
19 #include <nitro/ext.h>
20
21
22 /*---------------------------------------------------------------------------*
23 Name: EXT_AutoKeys
24
25 Description: Key input
26
27 Arguments: mode: Current display mode
28
29 Returns: Type of current capture mode.
30 (See GXCaptureMode for more detail.)
31 *---------------------------------------------------------------------------*/
EXT_AutoKeys(const EXTKeys * sequence,u16 * cont,u16 * trig)32 void EXT_AutoKeys(const EXTKeys *sequence, u16 *cont, u16 *trig)
33 {
34 // Key sequence counter
35 static u16 absolute_cnt = 0;
36 static u16 last_key = 0;
37 u16 cnt;
38
39 cnt = absolute_cnt;
40 while (cnt >= sequence->count)
41 {
42 // If there is a sequence with a count value of 0, regard it as the end
43 if (sequence->count == 0)
44 {
45 return;
46 }
47 cnt -= sequence->count;
48 sequence++;
49 }
50
51 *cont |= sequence->key;
52 *trig = (u16)(~last_key & *cont);
53 last_key = *cont;
54 absolute_cnt++;
55 }
56