src/joystick/nds/SDL_sysjoystick.c
branchgsoc2008_nds
changeset 2670 6e4669f4db49
child 2671 c3e7c0698cbb
equal deleted inserted replaced
2669:e27bdcc80744 2670:6e4669f4db49
       
     1 /*
       
     2     SDL - Simple DirectMedia Layer
       
     3     Copyright (C) 1997, 1998, 1999, 2000, 2001  Sam Lantinga
       
     4 
       
     5     This library is free software; you can redistribute it and/or
       
     6     modify it under the terms of the GNU Library General Public
       
     7     License as published by the Free Software Foundation; either
       
     8     version 2 of the License, or (at your option) any later version.
       
     9 
       
    10     This library is distributed in the hope that it will be useful,
       
    11     but WITHOUT ANY WARRANTY; without even the implied warranty of
       
    12     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
       
    13     Library General Public License for more details.
       
    14 
       
    15     You should have received a copy of the GNU Library General Public
       
    16     License along with this library; if not, write to the Free
       
    17     Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
       
    18 
       
    19     Sam Lantinga
       
    20     slouken@devolution.com
       
    21 */
       
    22 
       
    23 #ifdef SAVE_RCSID
       
    24 static char rcsid =
       
    25  "@(#) $Id: SDL_sysjoystick.c,v 1.2 2001/04/26 16:50:17 hercules Exp $";
       
    26 #endif
       
    27 
       
    28 /* This is the system specific header for the SDL joystick API */
       
    29 #include <nds.h>
       
    30 //#include <nds/registers_alt.h>
       
    31 #include <stdio.h>		/* For the definition of NULL */
       
    32 
       
    33 #include "SDL_error.h"
       
    34 #include "SDL_joystick.h"
       
    35 #include "SDL_sysjoystick.h"
       
    36 #include "SDL_joystick_c.h"
       
    37 
       
    38 #include "../../video/nds/SDL_ndsevents_c.h"
       
    39 
       
    40 /* Function to scan the system for joysticks.
       
    41  * This function should set SDL_numjoysticks to the number of available
       
    42  * joysticks.  Joystick 0 should be the system default joystick.
       
    43  * It should return 0, or -1 on an unrecoverable fatal error.
       
    44  */
       
    45 int SDL_SYS_JoystickInit(void)
       
    46 {
       
    47 	SDL_numjoysticks = 1;
       
    48     //keysInit();
       
    49 
       
    50 	return(1);
       
    51 }
       
    52 
       
    53 /* Function to get the device-dependent name of a joystick */
       
    54 const char *SDL_SYS_JoystickName(int index)
       
    55 {
       
    56 	if(!index)
       
    57 		return "NDS builtin joypad";
       
    58 	SDL_SetError("No joystick available with that index");
       
    59 	return (NULL);
       
    60 }
       
    61 
       
    62 /* Function to open a joystick for use.
       
    63    The joystick to open is specified by the index field of the joystick.
       
    64    This should fill the nbuttons and naxes fields of the joystick structure.
       
    65    It returns 0, or -1 if there is an error.
       
    66  */
       
    67 int SDL_SYS_JoystickOpen(SDL_Joystick *joystick)
       
    68 {
       
    69 	joystick->nbuttons=8;
       
    70 	joystick->nhats=0;
       
    71 	joystick->nballs=0;
       
    72 	joystick->naxes=2;
       
    73 	return 0;
       
    74 }
       
    75 
       
    76 
       
    77 /* Function to update the state of a joystick - called as a device poll.
       
    78  * This function shouldn't update the joystick structure directly,
       
    79  * but instead should call SDL_PrivateJoystick*() to deliver events
       
    80  * and update joystick device state.
       
    81  */
       
    82 
       
    83 int prevbutton=0;
       
    84 int prevkey=0;
       
    85 
       
    86 int dc=NULL;int ldc=0;
       
    87 u32 keysd,keysu=NULL;
       
    88 void SDL_SYS_JoystickUpdate(SDL_Joystick *joystick)
       
    89 {
       
    90     //dc=keysd;
       
    91 	//if (dc != NULL)
       
    92 	//{
       
    93 		//fprintf(stderr,"heartbeat= %d\n",REG_VCOUNT); 
       
    94 		//swiWaitForVBlank();
       
    95 		//scanKeys();
       
    96 		//keysd = keysDown(); 
       
    97 		//keysu = keysUp();
       
    98 		//ldc=keysd;
       
    99 		 
       
   100 	//}
       
   101 	/*if (prevkey !=NULL && prevbutton !=NULL)
       
   102 	{
       
   103 		scanKeys();
       
   104 	}
       
   105 	*/
       
   106 	
       
   107 	//scanKeys();
       
   108 		keysd = keysDown(); 
       
   109 		keysu = keysUp();
       
   110 		
       
   111 	
       
   112 	short ax=0,v=0,h=0;
       
   113 	if((keysd&KEY_UP)) {ax=1;v=-10;SDL_PrivateJoystickAxis(joystick,ax,v);prevkey=KEY_UP;}//fprintf(stderr,"KEY_UP\n");}
       
   114 	if((keysd&KEY_DOWN)) {ax=1;v=10;SDL_PrivateJoystickAxis(joystick,ax,v);prevkey=KEY_DOWN;}//fprintf(stderr,"KEY_DOWN\n");}
       
   115 	if((keysd&KEY_LEFT)) {ax=0;h=-10;SDL_PrivateJoystickAxis(joystick,ax,h);prevkey=KEY_LEFT;}//fprintf(stderr,"KEY_LEFT\n");}
       
   116 	if((keysd&KEY_RIGHT)) {ax=0;h=10;SDL_PrivateJoystickAxis(joystick,ax,h);prevkey=KEY_RIGHT;}//fprintf(stderr,"KEY_RIGHT\n");}
       
   117 
       
   118 	if((keysu&KEY_UP)) {ax=1;v=0;SDL_PrivateJoystickAxis(joystick,ax,v);prevkey=NULL;}//fprintf(stderr,"KEY_UP\n");}
       
   119 	if((keysu&KEY_DOWN)) {ax=1;v=0;SDL_PrivateJoystickAxis(joystick,ax,v);prevkey=NULL;}//fprintf(stderr,"KEY_DOWN\n");}
       
   120 	if((keysu&KEY_LEFT)) {ax=0;h=0;SDL_PrivateJoystickAxis(joystick,ax,h);prevkey=NULL;}//fprintf(stderr,"KEY_LEFT\n");}
       
   121 	if((keysu&KEY_RIGHT)) {ax=0;h=0;SDL_PrivateJoystickAxis(joystick,ax,h);prevkey=NULL;}//fprintf(stderr,"KEY_RIGHT\n");}
       
   122 
       
   123 	if((keysd&KEY_A))		{SDL_PrivateJoystickButton(joystick,0,SDL_PRESSED);prevbutton=KEY_A;}
       
   124 	if((keysd&KEY_B))		{SDL_PrivateJoystickButton(joystick,1,SDL_PRESSED);prevbutton=KEY_B;}
       
   125 	if((keysd&KEY_X))		{SDL_PrivateJoystickButton(joystick,2,SDL_PRESSED);prevbutton=KEY_X;}
       
   126 	if((keysd&KEY_Y))		{SDL_PrivateJoystickButton(joystick,3,SDL_PRESSED);prevbutton=KEY_Y;}
       
   127 	if((keysd&KEY_SELECT))	{SDL_PrivateJoystickButton(joystick,6,SDL_PRESSED);prevbutton=KEY_SELECT;}
       
   128 	if((keysd&KEY_START))	{SDL_PrivateJoystickButton(joystick,7,SDL_PRESSED);prevbutton=KEY_START;}
       
   129 	if((keysd&KEY_L))		{SDL_PrivateJoystickButton(joystick,4,SDL_PRESSED);prevbutton=KEY_L;}
       
   130 	if((keysd&KEY_R))		{SDL_PrivateJoystickButton(joystick,5,SDL_PRESSED);prevbutton=KEY_R;}
       
   131 
       
   132 	if((keysu&KEY_A))		{SDL_PrivateJoystickButton(joystick,0,SDL_RELEASED);prevbutton=NULL;}
       
   133 	if((keysu&KEY_B))		{SDL_PrivateJoystickButton(joystick,1,SDL_RELEASED);prevbutton=NULL;}
       
   134 	if((keysu&KEY_X))		{SDL_PrivateJoystickButton(joystick,2,SDL_RELEASED);prevbutton=NULL;}
       
   135 	if((keysu&KEY_Y))		{SDL_PrivateJoystickButton(joystick,3,SDL_RELEASED);prevbutton=NULL;}
       
   136 	if((keysu&KEY_SELECT))  {SDL_PrivateJoystickButton(joystick,6,SDL_RELEASED);prevbutton=NULL;}
       
   137 	if((keysu&KEY_START))	{SDL_PrivateJoystickButton(joystick,7,SDL_RELEASED);prevbutton=NULL;}
       
   138 	if((keysu&KEY_L))		{SDL_PrivateJoystickButton(joystick,4,SDL_RELEASED);prevbutton=NULL;}
       
   139 	if((keysu&KEY_R))		{SDL_PrivateJoystickButton(joystick,5,SDL_RELEASED);prevbutton=NULL;}
       
   140 
       
   141 
       
   142 
       
   143 }
       
   144 
       
   145 /* Function to close a joystick after use */
       
   146 void SDL_SYS_JoystickClose(SDL_Joystick *joystick)
       
   147 {
       
   148 }
       
   149 
       
   150 /* Function to perform any system-specific joystick related cleanup */
       
   151 void SDL_SYS_JoystickQuit(void)
       
   152 {
       
   153 }
       
   154