1 /* 2 SDL - Simple DirectMedia Layer 3 Copyright (C) 1997-2012 Sam Lantinga 4 5 This library is free software; you can redistribute it and/or 6 modify it under the terms of the GNU Lesser General Public 7 License as published by the Free Software Foundation; either 8 version 2.1 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 Lesser General Public License for more details. 14 15 You should have received a copy of the GNU Lesser General Public 16 License along with this library; if not, write to the Free Software 17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA 18 19 Sam Lantinga 20 slouken (at) libsdl.org 21 */ 22 #include "SDL_config.h" 23 24 /* This is the system specific header for the SDL joystick API */ 25 #include <nds.h> 26 //#include <nds/registers_alt.h> 27 28 #include "SDL_error.h" 29 #include "SDL_events.h" 30 #include "SDL_joystick.h" 31 #include "../SDL_sysjoystick.h" 32 #include "../SDL_joystick_c.h" 33 34 #include "../../video/nds/SDL_ndsevents_c.h" 35 36 /* Function to scan the system for joysticks. 37 * This function should set SDL_numjoysticks to the number of available 38 * joysticks. Joystick 0 should be the system default joystick. 39 * It should return 0, or -1 on an unrecoverable fatal error. 40 */ 41 int SDL_SYS_JoystickInit(void) 42 { 43 SDL_numjoysticks = 1; 44 //keysInit(); 45 46 return(1); 47 } 48 49 /* Function to get the device-dependent name of a joystick */ 50 const char *SDL_SYS_JoystickName(int index) 51 { 52 if(!index) 53 return "NDS builtin joypad"; 54 SDL_SetError("No joystick available with that index"); 55 return (NULL); 56 } 57 58 /* Function to open a joystick for use. 59 The joystick to open is specified by the index field of the joystick. 60 This should fill the nbuttons and naxes fields of the joystick structure. 61 It returns 0, or -1 if there is an error. 62 */ 63 int SDL_SYS_JoystickOpen(SDL_Joystick *joystick) 64 { 65 joystick->nbuttons=8; 66 joystick->nhats=0; 67 joystick->nballs=0; 68 joystick->naxes=2; 69 return 0; 70 } 71 72 73 /* Function to update the state of a joystick - called as a device poll. 74 * This function shouldn't update the joystick structure directly, 75 * but instead should call SDL_PrivateJoystick*() to deliver events 76 * and update joystick device state. 77 */ 78 79 int prevbutton=0; 80 int prevkey=0; 81 82 int dc=0;int ldc=0; 83 u32 keysd,keysu=0; 84 void SDL_SYS_JoystickUpdate(SDL_Joystick *joystick) 85 { 86 //dc=keysd; 87 //if (dc) 88 //{ 89 //fprintf(stderr,"heartbeat= %d\n",REG_VCOUNT); 90 //swiWaitForVBlank(); 91 //scanKeys(); 92 //keysd = keysDown(); 93 //keysu = keysUp(); 94 //ldc=keysd; 95 96 //} 97 /*if (prevkey && prevbutton) 98 { 99 scanKeys(); 100 } 101 */ 102 103 //scanKeys(); 104 keysd = keysDown(); 105 keysu = keysUp(); 106 107 108 short ax=0,v=0,h=0; 109 if((keysd&KEY_UP)) {ax=1;v=-10;SDL_PrivateJoystickAxis(joystick,ax,v);prevkey=KEY_UP;}//fprintf(stderr,"KEY_UP\n");} 110 if((keysd&KEY_DOWN)) {ax=1;v=10;SDL_PrivateJoystickAxis(joystick,ax,v);prevkey=KEY_DOWN;}//fprintf(stderr,"KEY_DOWN\n");} 111 if((keysd&KEY_LEFT)) {ax=0;h=-10;SDL_PrivateJoystickAxis(joystick,ax,h);prevkey=KEY_LEFT;}//fprintf(stderr,"KEY_LEFT\n");} 112 if((keysd&KEY_RIGHT)) {ax=0;h=10;SDL_PrivateJoystickAxis(joystick,ax,h);prevkey=KEY_RIGHT;}//fprintf(stderr,"KEY_RIGHT\n");} 113 114 if((keysu&KEY_UP)) {ax=1;v=0;SDL_PrivateJoystickAxis(joystick,ax,v);prevkey=0;}//fprintf(stderr,"KEY_UP\n");} 115 if((keysu&KEY_DOWN)) {ax=1;v=0;SDL_PrivateJoystickAxis(joystick,ax,v);prevkey=0;}//fprintf(stderr,"KEY_DOWN\n");} 116 if((keysu&KEY_LEFT)) {ax=0;h=0;SDL_PrivateJoystickAxis(joystick,ax,h);prevkey=0;}//fprintf(stderr,"KEY_LEFT\n");} 117 if((keysu&KEY_RIGHT)) {ax=0;h=0;SDL_PrivateJoystickAxis(joystick,ax,h);prevkey=0;}//fprintf(stderr,"KEY_RIGHT\n");} 118 119 if((keysd&KEY_A)) {SDL_PrivateJoystickButton(joystick,0,SDL_PRESSED);prevbutton=KEY_A;} 120 if((keysd&KEY_B)) {SDL_PrivateJoystickButton(joystick,1,SDL_PRESSED);prevbutton=KEY_B;} 121 if((keysd&KEY_X)) {SDL_PrivateJoystickButton(joystick,2,SDL_PRESSED);prevbutton=KEY_X;} 122 if((keysd&KEY_Y)) {SDL_PrivateJoystickButton(joystick,3,SDL_PRESSED);prevbutton=KEY_Y;} 123 if((keysd&KEY_SELECT)) {SDL_PrivateJoystickButton(joystick,6,SDL_PRESSED);prevbutton=KEY_SELECT;} 124 if((keysd&KEY_START)) {SDL_PrivateJoystickButton(joystick,7,SDL_PRESSED);prevbutton=KEY_START;} 125 if((keysd&KEY_L)) {SDL_PrivateJoystickButton(joystick,4,SDL_PRESSED);prevbutton=KEY_L;} 126 if((keysd&KEY_R)) {SDL_PrivateJoystickButton(joystick,5,SDL_PRESSED);prevbutton=KEY_R;} 127 128 if((keysu&KEY_A)) {SDL_PrivateJoystickButton(joystick,0,SDL_RELEASED);prevbutton=0;} 129 if((keysu&KEY_B)) {SDL_PrivateJoystickButton(joystick,1,SDL_RELEASED);prevbutton=0;} 130 if((keysu&KEY_X)) {SDL_PrivateJoystickButton(joystick,2,SDL_RELEASED);prevbutton=0;} 131 if((keysu&KEY_Y)) {SDL_PrivateJoystickButton(joystick,3,SDL_RELEASED);prevbutton=0;} 132 if((keysu&KEY_SELECT)) {SDL_PrivateJoystickButton(joystick,6,SDL_RELEASED);prevbutton=0;} 133 if((keysu&KEY_START)) {SDL_PrivateJoystickButton(joystick,7,SDL_RELEASED);prevbutton=0;} 134 if((keysu&KEY_L)) {SDL_PrivateJoystickButton(joystick,4,SDL_RELEASED);prevbutton=0;} 135 if((keysu&KEY_R)) {SDL_PrivateJoystickButton(joystick,5,SDL_RELEASED);prevbutton=0;} 136 137 138 139 } 140 141 /* Function to close a joystick after use */ 142 void SDL_SYS_JoystickClose(SDL_Joystick *joystick) 143 { 144 } 145 146 /* Function to perform any system-specific joystick related cleanup */ 147 void SDL_SYS_JoystickQuit(void) 148 { 149 } 150 151
