/[pcsx2_0.9.7]/trunk/3rdparty/SDL-1.3.0-5387/test/testjoystick.c
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Contents of /trunk/3rdparty/SDL-1.3.0-5387/test/testjoystick.c

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Revision 401 - (show annotations) (download)
Fri Feb 25 17:31:09 2011 UTC (9 years, 9 months ago) by william
File MIME type: text/plain
File size: 6443 byte(s)
Auto Commited Import of: pcsx2-0.9.7-DEBUG (upstream: v0.9.7.4358 local: v0.9.7.313-latest) in ./trunk
1
2 /* Simple program to test the SDL joystick routines */
3
4 #include <stdio.h>
5 #include <stdlib.h>
6 #include <string.h>
7
8 #include "SDL.h"
9
10 #ifdef __IPHONEOS__
11 #define SCREEN_WIDTH 320
12 #define SCREEN_HEIGHT 480
13 #else
14 #define SCREEN_WIDTH 640
15 #define SCREEN_HEIGHT 480
16 #endif
17
18 void
19 WatchJoystick(SDL_Joystick * joystick)
20 {
21 SDL_Surface *screen;
22 const char *name;
23 int i, done;
24 SDL_Event event;
25 int x, y, draw;
26 SDL_Rect axis_area[6][2];
27
28 /* Set a video mode to display joystick axis position */
29 screen = SDL_SetVideoMode(SCREEN_WIDTH, SCREEN_HEIGHT, 16, 0);
30 if (screen == NULL) {
31 fprintf(stderr, "Couldn't set video mode: %s\n", SDL_GetError());
32 return;
33 }
34
35 /* Print info about the joystick we are watching */
36 name = SDL_JoystickName(SDL_JoystickIndex(joystick));
37 printf("Watching joystick %d: (%s)\n", SDL_JoystickIndex(joystick),
38 name ? name : "Unknown Joystick");
39 printf("Joystick has %d axes, %d hats, %d balls, and %d buttons\n",
40 SDL_JoystickNumAxes(joystick), SDL_JoystickNumHats(joystick),
41 SDL_JoystickNumBalls(joystick), SDL_JoystickNumButtons(joystick));
42
43 /* Initialize drawing rectangles */
44 memset(axis_area, 0, (sizeof axis_area));
45 draw = 0;
46
47 /* Loop, getting joystick events! */
48 done = 0;
49 while (!done) {
50 while (SDL_PollEvent(&event)) {
51 switch (event.type) {
52 case SDL_JOYAXISMOTION:
53 printf("Joystick %d axis %d value: %d\n",
54 event.jaxis.which,
55 event.jaxis.axis, event.jaxis.value);
56 break;
57 case SDL_JOYHATMOTION:
58 printf("Joystick %d hat %d value:",
59 event.jhat.which, event.jhat.hat);
60 if (event.jhat.value == SDL_HAT_CENTERED)
61 printf(" centered");
62 if (event.jhat.value & SDL_HAT_UP)
63 printf(" up");
64 if (event.jhat.value & SDL_HAT_RIGHT)
65 printf(" right");
66 if (event.jhat.value & SDL_HAT_DOWN)
67 printf(" down");
68 if (event.jhat.value & SDL_HAT_LEFT)
69 printf(" left");
70 printf("\n");
71 break;
72 case SDL_JOYBALLMOTION:
73 printf("Joystick %d ball %d delta: (%d,%d)\n",
74 event.jball.which,
75 event.jball.ball, event.jball.xrel, event.jball.yrel);
76 break;
77 case SDL_JOYBUTTONDOWN:
78 printf("Joystick %d button %d down\n",
79 event.jbutton.which, event.jbutton.button);
80 break;
81 case SDL_JOYBUTTONUP:
82 printf("Joystick %d button %d up\n",
83 event.jbutton.which, event.jbutton.button);
84 break;
85 case SDL_KEYDOWN:
86 if (event.key.keysym.sym != SDLK_ESCAPE) {
87 break;
88 }
89 /* Fall through to signal quit */
90 case SDL_QUIT:
91 done = 1;
92 break;
93 default:
94 break;
95 }
96 }
97 /* Update visual joystick state */
98 for (i = 0; i < SDL_JoystickNumButtons(joystick); ++i) {
99 SDL_Rect area;
100
101 area.x = i * 34;
102 area.y = SCREEN_HEIGHT - 34;
103 area.w = 32;
104 area.h = 32;
105 if (SDL_JoystickGetButton(joystick, i) == SDL_PRESSED) {
106 SDL_FillRect(screen, &area, 0xFFFF);
107 } else {
108 SDL_FillRect(screen, &area, 0x0000);
109 }
110 SDL_UpdateRects(screen, 1, &area);
111 }
112
113 for (i = 0;
114 i < SDL_JoystickNumAxes(joystick) / 2
115 && i < SDL_arraysize(axis_area); ++i) {
116 /* Erase previous axes */
117 SDL_FillRect(screen, &axis_area[i][draw], 0x0000);
118
119 /* Draw the X/Y axis */
120 draw = !draw;
121 x = (((int) SDL_JoystickGetAxis(joystick, i * 2 + 0)) + 32768);
122 x *= SCREEN_WIDTH;
123 x /= 65535;
124 if (x < 0) {
125 x = 0;
126 } else if (x > (SCREEN_WIDTH - 16)) {
127 x = SCREEN_WIDTH - 16;
128 }
129 y = (((int) SDL_JoystickGetAxis(joystick, i * 2 + 1)) + 32768);
130 y *= SCREEN_HEIGHT;
131 y /= 65535;
132 if (y < 0) {
133 y = 0;
134 } else if (y > (SCREEN_HEIGHT - 16)) {
135 y = SCREEN_HEIGHT - 16;
136 }
137
138 axis_area[i][draw].x = (Sint16) x;
139 axis_area[i][draw].y = (Sint16) y;
140 axis_area[i][draw].w = 16;
141 axis_area[i][draw].h = 16;
142 SDL_FillRect(screen, &axis_area[i][draw], 0xFFFF);
143
144 SDL_UpdateRects(screen, 2, axis_area[i]);
145 }
146 }
147 }
148
149 int
150 main(int argc, char *argv[])
151 {
152 const char *name;
153 int i;
154 SDL_Joystick *joystick;
155
156 /* Initialize SDL (Note: video is required to start event loop) */
157 if (SDL_Init(SDL_INIT_VIDEO | SDL_INIT_JOYSTICK) < 0) {
158 fprintf(stderr, "Couldn't initialize SDL: %s\n", SDL_GetError());
159 exit(1);
160 }
161
162 /* Print information about the joysticks */
163 printf("There are %d joysticks attached\n", SDL_NumJoysticks());
164 for (i = 0; i < SDL_NumJoysticks(); ++i) {
165 name = SDL_JoystickName(i);
166 printf("Joystick %d: %s\n", i, name ? name : "Unknown Joystick");
167 joystick = SDL_JoystickOpen(i);
168 if (joystick == NULL) {
169 fprintf(stderr, "SDL_JoystickOpen(%d) failed: %s\n", i,
170 SDL_GetError());
171 } else {
172 printf(" axes: %d\n", SDL_JoystickNumAxes(joystick));
173 printf(" balls: %d\n", SDL_JoystickNumBalls(joystick));
174 printf(" hats: %d\n", SDL_JoystickNumHats(joystick));
175 printf(" buttons: %d\n", SDL_JoystickNumButtons(joystick));
176 SDL_JoystickClose(joystick);
177 }
178 }
179
180 if (argv[1]) {
181 joystick = SDL_JoystickOpen(atoi(argv[1]));
182 if (joystick == NULL) {
183 printf("Couldn't open joystick %d: %s\n", atoi(argv[1]),
184 SDL_GetError());
185 } else {
186 WatchJoystick(joystick);
187 SDL_JoystickClose(joystick);
188 }
189 }
190 SDL_QuitSubSystem(SDL_INIT_VIDEO | SDL_INIT_JOYSTICK);
191
192 return (0);
193 }

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