diff src/joystick/nds/SDL_sysjoystick.c @ 2735:204be4fc2726

Final merge of Google Summer of Code 2008 work... Port SDL 1.3 to the Nintendo DS by Darren Alton, mentored by Sam Lantinga
author Sam Lantinga <slouken@libsdl.org>
date Wed, 27 Aug 2008 15:10:03 +0000
parents
children 1c5f440a60fe
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/joystick/nds/SDL_sysjoystick.c	Wed Aug 27 15:10:03 2008 +0000
@@ -0,0 +1,172 @@
+/*
+    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
+*/
+
+#include "SDL_config.h"
+
+#ifdef SDL_JOYSTICK_NDS
+
+/* This is the system specific header for the SDL joystick API */
+#include <nds.h>
+#include <stdio.h>              /* For the definition of NULL */
+
+#include "SDL_error.h"
+#include "SDL_events.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;
+    
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.
+ */
+    void
+SDL_SYS_JoystickUpdate(SDL_Joystick * joystick)
+{
+    u32 keysd, keysu;
+    int magnitude = 16384;
+    
+        /*scanKeys(); */ 
+        keysd = keysDown();
+    keysu = keysUp();
+
+    if ((keysd & KEY_UP)) {
+        SDL_PrivateJoystickAxis(joystick, 1, -magnitude);
+    }
+    if ((keysd & KEY_DOWN)) {
+        SDL_PrivateJoystickAxis(joystick, 1, magnitude);
+    }
+    if ((keysd & KEY_LEFT)) {
+        SDL_PrivateJoystickAxis(joystick, 0, -magnitude);
+    }
+    if ((keysd & KEY_RIGHT)) {
+        SDL_PrivateJoystickAxis(joystick, 0, magnitude);
+    }
+    
if ((keysu & (KEY_UP | KEY_DOWN))) {
+        SDL_PrivateJoystickAxis(joystick, 1, 0);
+    }
+    
if ((keysu & (KEY_LEFT | KEY_RIGHT))) {
+        SDL_PrivateJoystickAxis(joystick, 0, 0);
+    }
+    
if ((keysd & KEY_A)) {
+        SDL_PrivateJoystickButton(joystick, 0, SDL_PRESSED);
+    }
+    
if ((keysd & KEY_B)) {
+        SDL_PrivateJoystickButton(joystick, 1, SDL_PRESSED);
+    }
+    
if ((keysd & KEY_X)) {
+        SDL_PrivateJoystickButton(joystick, 2, SDL_PRESSED);
+    }
+    
if ((keysd & KEY_Y)) {
+        SDL_PrivateJoystickButton(joystick, 3, SDL_PRESSED);
+    }
+    
if ((keysd & KEY_L)) {
+        SDL_PrivateJoystickButton(joystick, 4, SDL_PRESSED);
+    }
+    
if ((keysd & KEY_R)) {
+        SDL_PrivateJoystickButton(joystick, 5, SDL_PRESSED);
+    }
+    
if ((keysd & KEY_SELECT)) {
+        SDL_PrivateJoystickButton(joystick, 6, SDL_PRESSED);
+    }
+    
if ((keysd & KEY_START)) {
+        SDL_PrivateJoystickButton(joystick, 7, SDL_PRESSED);
+    }
+    
if ((keysu & KEY_A)) {
+        SDL_PrivateJoystickButton(joystick, 0, SDL_RELEASED);
+    }
+    
if ((keysu & KEY_B)) {
+        SDL_PrivateJoystickButton(joystick, 1, SDL_RELEASED);
+    }
+    
if ((keysu & KEY_X)) {
+        SDL_PrivateJoystickButton(joystick, 2, SDL_RELEASED);
+    }
+    
if ((keysu & KEY_Y)) {
+        SDL_PrivateJoystickButton(joystick, 3, SDL_RELEASED);
+    }
+    
if ((keysu & KEY_L)) {
+        SDL_PrivateJoystickButton(joystick, 4, SDL_RELEASED);
+    }
+    
if ((keysu & KEY_R)) {
+        SDL_PrivateJoystickButton(joystick, 5, SDL_RELEASED);
+    }
+    
if ((keysu & KEY_SELECT)) {
+        SDL_PrivateJoystickButton(joystick, 6, SDL_RELEASED);
+    }
+    
if ((keysu & KEY_START)) {
+        SDL_PrivateJoystickButton(joystick, 7, SDL_RELEASED);
+    }
+
}
+
+/* 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)
+{
+}
+
+#endif /* SDL_JOYSTICK_NDS */