src/joystick/nds/SDL_sysjoystick.c
branchgsoc2008_nds
changeset 2670 6e4669f4db49
child 2671 c3e7c0698cbb
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/joystick/nds/SDL_sysjoystick.c	Tue Jun 10 06:57:57 2008 +0000
@@ -0,0 +1,154 @@
+/*
+    SDL - Simple DirectMedia Layer
+    Copyright (C) 1997, 1998, 1999, 2000, 2001  Sam Lantinga
+
+    This library is free software; you can redistribute it and/or
+    modify it under the terms of the GNU Library General Public
+    License as published by the Free Software Foundation; either
+    version 2 of the License, or (at your option) any later version.
+
+    This library is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+    Library General Public License for more details.
+
+    You should have received a copy of the GNU Library General Public
+    License along with this library; if not, write to the Free
+    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+
+    Sam Lantinga
+    slouken@devolution.com
+*/
+
+#ifdef SAVE_RCSID
+static char rcsid =
+ "@(#) $Id: SDL_sysjoystick.c,v 1.2 2001/04/26 16:50:17 hercules Exp $";
+#endif
+
+/* This is the system specific header for the SDL joystick API */
+#include <nds.h>
+//#include <nds/registers_alt.h>
+#include <stdio.h>		/* For the definition of NULL */
+
+#include "SDL_error.h"
+#include "SDL_joystick.h"
+#include "SDL_sysjoystick.h"
+#include "SDL_joystick_c.h"
+
+#include "../../video/nds/SDL_ndsevents_c.h"
+
+/* Function to scan the system for joysticks.
+ * This function should set SDL_numjoysticks to the number of available
+ * joysticks.  Joystick 0 should be the system default joystick.
+ * It should return 0, or -1 on an unrecoverable fatal error.
+ */
+int SDL_SYS_JoystickInit(void)
+{
+	SDL_numjoysticks = 1;
+    //keysInit();
+
+	return(1);
+}
+
+/* Function to get the device-dependent name of a joystick */
+const char *SDL_SYS_JoystickName(int index)
+{
+	if(!index)
+		return "NDS builtin joypad";
+	SDL_SetError("No joystick available with that index");
+	return (NULL);
+}
+
+/* Function to open a joystick for use.
+   The joystick to open is specified by the index field of the joystick.
+   This should fill the nbuttons and naxes fields of the joystick structure.
+   It returns 0, or -1 if there is an error.
+ */
+int SDL_SYS_JoystickOpen(SDL_Joystick *joystick)
+{
+	joystick->nbuttons=8;
+	joystick->nhats=0;
+	joystick->nballs=0;
+	joystick->naxes=2;
+	return 0;
+}
+
+
+/* Function to update the state of a joystick - called as a device poll.
+ * This function shouldn't update the joystick structure directly,
+ * but instead should call SDL_PrivateJoystick*() to deliver events
+ * and update joystick device state.
+ */
+
+int prevbutton=0;
+int prevkey=0;
+
+int dc=NULL;int ldc=0;
+u32 keysd,keysu=NULL;
+void SDL_SYS_JoystickUpdate(SDL_Joystick *joystick)
+{
+    //dc=keysd;
+	//if (dc != NULL)
+	//{
+		//fprintf(stderr,"heartbeat= %d\n",REG_VCOUNT); 
+		//swiWaitForVBlank();
+		//scanKeys();
+		//keysd = keysDown(); 
+		//keysu = keysUp();
+		//ldc=keysd;
+		 
+	//}
+	/*if (prevkey !=NULL && prevbutton !=NULL)
+	{
+		scanKeys();
+	}
+	*/
+	
+	//scanKeys();
+		keysd = keysDown(); 
+		keysu = keysUp();
+		
+	
+	short ax=0,v=0,h=0;
+	if((keysd&KEY_UP)) {ax=1;v=-10;SDL_PrivateJoystickAxis(joystick,ax,v);prevkey=KEY_UP;}//fprintf(stderr,"KEY_UP\n");}
+	if((keysd&KEY_DOWN)) {ax=1;v=10;SDL_PrivateJoystickAxis(joystick,ax,v);prevkey=KEY_DOWN;}//fprintf(stderr,"KEY_DOWN\n");}
+	if((keysd&KEY_LEFT)) {ax=0;h=-10;SDL_PrivateJoystickAxis(joystick,ax,h);prevkey=KEY_LEFT;}//fprintf(stderr,"KEY_LEFT\n");}
+	if((keysd&KEY_RIGHT)) {ax=0;h=10;SDL_PrivateJoystickAxis(joystick,ax,h);prevkey=KEY_RIGHT;}//fprintf(stderr,"KEY_RIGHT\n");}
+
+	if((keysu&KEY_UP)) {ax=1;v=0;SDL_PrivateJoystickAxis(joystick,ax,v);prevkey=NULL;}//fprintf(stderr,"KEY_UP\n");}
+	if((keysu&KEY_DOWN)) {ax=1;v=0;SDL_PrivateJoystickAxis(joystick,ax,v);prevkey=NULL;}//fprintf(stderr,"KEY_DOWN\n");}
+	if((keysu&KEY_LEFT)) {ax=0;h=0;SDL_PrivateJoystickAxis(joystick,ax,h);prevkey=NULL;}//fprintf(stderr,"KEY_LEFT\n");}
+	if((keysu&KEY_RIGHT)) {ax=0;h=0;SDL_PrivateJoystickAxis(joystick,ax,h);prevkey=NULL;}//fprintf(stderr,"KEY_RIGHT\n");}
+
+	if((keysd&KEY_A))		{SDL_PrivateJoystickButton(joystick,0,SDL_PRESSED);prevbutton=KEY_A;}
+	if((keysd&KEY_B))		{SDL_PrivateJoystickButton(joystick,1,SDL_PRESSED);prevbutton=KEY_B;}
+	if((keysd&KEY_X))		{SDL_PrivateJoystickButton(joystick,2,SDL_PRESSED);prevbutton=KEY_X;}
+	if((keysd&KEY_Y))		{SDL_PrivateJoystickButton(joystick,3,SDL_PRESSED);prevbutton=KEY_Y;}
+	if((keysd&KEY_SELECT))	{SDL_PrivateJoystickButton(joystick,6,SDL_PRESSED);prevbutton=KEY_SELECT;}
+	if((keysd&KEY_START))	{SDL_PrivateJoystickButton(joystick,7,SDL_PRESSED);prevbutton=KEY_START;}
+	if((keysd&KEY_L))		{SDL_PrivateJoystickButton(joystick,4,SDL_PRESSED);prevbutton=KEY_L;}
+	if((keysd&KEY_R))		{SDL_PrivateJoystickButton(joystick,5,SDL_PRESSED);prevbutton=KEY_R;}
+
+	if((keysu&KEY_A))		{SDL_PrivateJoystickButton(joystick,0,SDL_RELEASED);prevbutton=NULL;}
+	if((keysu&KEY_B))		{SDL_PrivateJoystickButton(joystick,1,SDL_RELEASED);prevbutton=NULL;}
+	if((keysu&KEY_X))		{SDL_PrivateJoystickButton(joystick,2,SDL_RELEASED);prevbutton=NULL;}
+	if((keysu&KEY_Y))		{SDL_PrivateJoystickButton(joystick,3,SDL_RELEASED);prevbutton=NULL;}
+	if((keysu&KEY_SELECT))  {SDL_PrivateJoystickButton(joystick,6,SDL_RELEASED);prevbutton=NULL;}
+	if((keysu&KEY_START))	{SDL_PrivateJoystickButton(joystick,7,SDL_RELEASED);prevbutton=NULL;}
+	if((keysu&KEY_L))		{SDL_PrivateJoystickButton(joystick,4,SDL_RELEASED);prevbutton=NULL;}
+	if((keysu&KEY_R))		{SDL_PrivateJoystickButton(joystick,5,SDL_RELEASED);prevbutton=NULL;}
+
+
+
+}
+
+/* Function to close a joystick after use */
+void SDL_SYS_JoystickClose(SDL_Joystick *joystick)
+{
+}
+
+/* Function to perform any system-specific joystick related cleanup */
+void SDL_SYS_JoystickQuit(void)
+{
+}
+