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

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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
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children 1c5f440a60fe
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2734:dd25eabe441c 2735:204be4fc2726
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 #include "SDL_config.h"
24
25 #ifdef SDL_JOYSTICK_NDS
26
27 /* This is the system specific header for the SDL joystick API */
28 #include <nds.h>
29 #include <stdio.h> /* For the definition of NULL */
30
31 #include "SDL_error.h"
32 #include "SDL_events.h"
33 #include "SDL_joystick.h"
34 #include "SDL_sysjoystick.h"
35 #include "SDL_joystick_c.h"
36
37 #include "../../video/nds/SDL_ndsevents_c.h"
38
39 /* Function to scan the system for joysticks.
40 * This function should set SDL_numjoysticks to the number of available
41 * joysticks. Joystick 0 should be the system default joystick.
42 * It should return 0, or -1 on an unrecoverable fatal error.
43 */
44 int
45 SDL_SYS_JoystickInit(void)
46 {
47 SDL_numjoysticks = 1;
48
49 return (1);
50 }
51
52 /* Function to get the device-dependent name of a joystick */
53 const char *
54 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
68 SDL_SYS_JoystickOpen(SDL_Joystick * joystick)
69 {
70 joystick->nbuttons = 8;
71 joystick->nhats = 0;
72 joystick->nballs = 0;
73 joystick->naxes = 2;
74 return 0;
75 }
76
77
78 /* Function to update the state of a joystick - called as a device poll.
79 * This function shouldn't update the joystick structure directly,
80 * but instead should call SDL_PrivateJoystick*() to deliver events
81 * and update joystick device state.
82 */
83 void
84 SDL_SYS_JoystickUpdate(SDL_Joystick * joystick)
85 {
86 u32 keysd, keysu;
87 int magnitude = 16384;
88
89 /*scanKeys(); */
90 keysd = keysDown();
91 keysu = keysUp();
92
93 if ((keysd & KEY_UP)) {
94 SDL_PrivateJoystickAxis(joystick, 1, -magnitude);
95 }
96 if ((keysd & KEY_DOWN)) {
97 SDL_PrivateJoystickAxis(joystick, 1, magnitude);
98 }
99 if ((keysd & KEY_LEFT)) {
100 SDL_PrivateJoystickAxis(joystick, 0, -magnitude);
101 }
102 if ((keysd & KEY_RIGHT)) {
103 SDL_PrivateJoystickAxis(joystick, 0, magnitude);
104 }
105
106 if ((keysu & (KEY_UP | KEY_DOWN))) {
107 SDL_PrivateJoystickAxis(joystick, 1, 0);
108 }
109
110 if ((keysu & (KEY_LEFT | KEY_RIGHT))) {
111 SDL_PrivateJoystickAxis(joystick, 0, 0);
112 }
113
114 if ((keysd & KEY_A)) {
115 SDL_PrivateJoystickButton(joystick, 0, SDL_PRESSED);
116 }
117
118 if ((keysd & KEY_B)) {
119 SDL_PrivateJoystickButton(joystick, 1, SDL_PRESSED);
120 }
121
122 if ((keysd & KEY_X)) {
123 SDL_PrivateJoystickButton(joystick, 2, SDL_PRESSED);
124 }
125
126 if ((keysd & KEY_Y)) {
127 SDL_PrivateJoystickButton(joystick, 3, SDL_PRESSED);
128 }
129
130 if ((keysd & KEY_L)) {
131 SDL_PrivateJoystickButton(joystick, 4, SDL_PRESSED);
132 }
133
134 if ((keysd & KEY_R)) {
135 SDL_PrivateJoystickButton(joystick, 5, SDL_PRESSED);
136 }
137
138 if ((keysd & KEY_SELECT)) {
139 SDL_PrivateJoystickButton(joystick, 6, SDL_PRESSED);
140 }
141
142 if ((keysd & KEY_START)) {
143 SDL_PrivateJoystickButton(joystick, 7, SDL_PRESSED);
144 }
145
146 if ((keysu & KEY_A)) {
147 SDL_PrivateJoystickButton(joystick, 0, SDL_RELEASED);
148 }
149
150 if ((keysu & KEY_B)) {
151 SDL_PrivateJoystickButton(joystick, 1, SDL_RELEASED);
152 }
153
154 if ((keysu & KEY_X)) {
155 SDL_PrivateJoystickButton(joystick, 2, SDL_RELEASED);
156 }
157
158 if ((keysu & KEY_Y)) {
159 SDL_PrivateJoystickButton(joystick, 3, SDL_RELEASED);
160 }
161
162 if ((keysu & KEY_L)) {
163 SDL_PrivateJoystickButton(joystick, 4, SDL_RELEASED);
164 }
165
166 if ((keysu & KEY_R)) {
167 SDL_PrivateJoystickButton(joystick, 5, SDL_RELEASED);
168 }
169
170 if ((keysu & KEY_SELECT)) {
171 SDL_PrivateJoystickButton(joystick, 6, SDL_RELEASED);
172 }
173
174 if ((keysu & KEY_START)) {
175 SDL_PrivateJoystickButton(joystick, 7, SDL_RELEASED);
176 }
177
178 }
179
180 /* Function to close a joystick after use */
181 void
182 SDL_SYS_JoystickClose(SDL_Joystick * joystick)
183 {
184 }
185
186 /* Function to perform any system-specific joystick related cleanup */
187 void
188 SDL_SYS_JoystickQuit(void)
189 {
190 }
191
192 #endif /* SDL_JOYSTICK_NDS */