SDL  2.0
testrumble.c File Reference
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#include "SDL.h"
+ Include dependency graph for testrumble.c:

Go to the source code of this file.

Functions

int main (int argc, char **argv)
 The entry point of this force feedback demo. More...
 

Variables

static SDL_Haptic * haptic
 

Function Documentation

◆ main()

int main ( int  argc,
char **  argv 
)

The entry point of this force feedback demo.

Parameters
[in]argcNumber of arguments.
[in]argvArray of argc arguments.

Definition at line 45 of file testrumble.c.

References haptic, i, NULL, SDL_atoi, SDL_ClearError, SDL_Delay, SDL_FALSE, SDL_GetError, SDL_HapticClose, SDL_HapticName, SDL_HapticOpen, SDL_HapticRumbleInit, SDL_HapticRumblePlay, SDL_HapticRumbleStop, SDL_HapticRumbleSupported, SDL_Init, SDL_INIT_HAPTIC, SDL_INIT_JOYSTICK, SDL_INIT_TIMER, SDL_INIT_VIDEO, SDL_isdigit, SDL_Log, SDL_LOG_CATEGORY_APPLICATION, SDL_LOG_PRIORITY_INFO, SDL_LogError, SDL_LogSetPriority, SDL_NumHaptics, SDL_Quit, and SDL_strlen.

46 {
47  int i;
48  char *name;
49  int index;
50 
51  /* Enable standard application logging */
53 
54  name = NULL;
55  index = -1;
56  if (argc > 1) {
57  size_t l;
58  name = argv[1];
59  if ((strcmp(name, "--help") == 0) || (strcmp(name, "-h") == 0)) {
60  SDL_Log("USAGE: %s [device]\n"
61  "If device is a two-digit number it'll use it as an index, otherwise\n"
62  "it'll use it as if it were part of the device's name.\n",
63  argv[0]);
64  return 0;
65  }
66 
67  l = SDL_strlen(name);
68  if ((l < 3) && SDL_isdigit(name[0]) && ((l == 1) || SDL_isdigit(name[1]))) {
69  index = SDL_atoi(name);
70  name = NULL;
71  }
72  }
73 
74  /* Initialize the force feedbackness */
77  SDL_Log("%d Haptic devices detected.\n", SDL_NumHaptics());
78  if (SDL_NumHaptics() > 0) {
79  /* We'll just use index or the first force feedback device found */
80  if (name == NULL) {
81  i = (index != -1) ? index : 0;
82  }
83  /* Try to find matching device */
84  else {
85  for (i = 0; i < SDL_NumHaptics(); i++) {
86  if (strstr(SDL_HapticName(i), name) != NULL)
87  break;
88  }
89 
90  if (i >= SDL_NumHaptics()) {
91  SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Unable to find device matching '%s', aborting.\n",
92  name);
93  return 1;
94  }
95  }
96 
98  if (haptic == NULL) {
99  SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Unable to create the haptic device: %s\n",
100  SDL_GetError());
101  return 1;
102  }
103  SDL_Log("Device: %s\n", SDL_HapticName(i));
104  } else {
105  SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "No Haptic devices found!\n");
106  return 1;
107  }
108 
109  /* We only want force feedback errors. */
110  SDL_ClearError();
111 
113  SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Rumble not supported!\n");
114  return 1;
115  }
116  if (SDL_HapticRumbleInit(haptic) != 0) {
117  SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Failed to initialize rumble: %s\n", SDL_GetError());
118  return 1;
119  }
120  SDL_Log("Playing 2 second rumble at 0.5 magnitude.\n");
121  if (SDL_HapticRumblePlay(haptic, 0.5, 5000) != 0) {
122  SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Failed to play rumble: %s\n", SDL_GetError() );
123  return 1;
124  }
125  SDL_Delay(2000);
126  SDL_Log("Stopping rumble.\n");
128  SDL_Delay(2000);
129  SDL_Log("Playing 2 second rumble at 0.3 magnitude.\n");
130  if (SDL_HapticRumblePlay(haptic, 0.3f, 5000) != 0) {
131  SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Failed to play rumble: %s\n", SDL_GetError() );
132  return 1;
133  }
134  SDL_Delay(2000);
135 
136  /* Quit */
137  if (haptic != NULL)
139  SDL_Quit();
140 
141  return 0;
142 }
#define SDL_ClearError
#define SDL_GetError
#define SDL_INIT_JOYSTICK
Definition: SDL.h:79
#define SDL_HapticRumbleStop
#define SDL_HapticOpen
GLfloat f
#define SDL_HapticClose
GLuint const GLchar * name
#define SDL_LogError
#define SDL_Log
#define SDL_HapticName
#define SDL_isdigit
#define SDL_Quit
#define SDL_atoi
GLuint index
#define SDL_Delay
return Display return Display Bool Bool int int int return Display XEvent Bool(*) XPointer return Display return Display Drawable _Xconst char unsigned int unsigned int return Display Pixmap Pixmap XColor XColor unsigned int unsigned int return Display _Xconst char char int char return Display Visual unsigned int int int char unsigned int unsigned int in i)
Definition: SDL_x11sym.h:50
#define SDL_LogSetPriority
#define NULL
Definition: begin_code.h:164
#define SDL_INIT_TIMER
Definition: SDL.h:76
static SDL_Haptic * haptic
Definition: testrumble.c:36
#define SDL_strlen
#define SDL_HapticRumbleSupported
#define SDL_NumHaptics
#define SDL_HapticRumbleInit
#define SDL_Init
#define SDL_INIT_HAPTIC
Definition: SDL.h:80
#define SDL_INIT_VIDEO
Definition: SDL.h:78
#define SDL_HapticRumblePlay

Variable Documentation

◆ haptic

SDL_Haptic* haptic
static

Definition at line 36 of file testrumble.c.

Referenced by main().