Atlas - testrumble.c
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1/*
2  Copyright (C) 1997-2018 Sam Lantinga <[email protected]>
3
4  This software is provided 'as-is', without any express or implied
5  warranty.  In no event will the authors be held liable for any damages
6  arising from the use of this software.
7
8  Permission is granted to anyone to use this software for any purpose,
9  including commercial applications, and to alter it and redistribute it
10  freely.
11*/
12/*
13Copyright (c) 2011, Edgar Simo Serra
14All rights reserved.
15
16Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
17
18    * Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
19    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
20    * Neither the name of the Simple Directmedia Layer (SDL) nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.
21
22THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
23*/
24
25/*
26 * includes
27 */
28#include <stdlib.h>
29#include <string.h>             /* strstr */
30#include <ctype.h>              /* isdigit */
31
32#include "SDL.h"
33
34#ifndef SDL_HAPTIC_DISABLED
35
36static SDL_Haptic *haptic;
37
38
39/**
40 * @brief The entry point of this force feedback demo.
41 * @param[in] argc Number of arguments.
42 * @param[in] argv Array of argc arguments.
43 */
44int
45main(int argc, char **argv)
46{
47    int i;
48    char *name;
49    int index;
50
51    /* Enable standard application logging */
52    SDL_LogSetPriority(SDL_LOG_CATEGORY_APPLICATION, SDL_LOG_PRIORITY_INFO);
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 */
75    SDL_Init(SDL_INIT_VIDEO | SDL_INIT_TIMER | SDL_INIT_JOYSTICK |
76             SDL_INIT_HAPTIC);
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
97        haptic = SDL_HapticOpen(i);
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
112    if (SDL_HapticRumbleSupported(haptic) == SDL_FALSE) {
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");
127    SDL_HapticRumbleStop(haptic);
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)
138        SDL_HapticClose(haptic);
139    SDL_Quit();
140
141    return 0;
142}
143
144#else
145
146int
147main(int argc, char *argv[])
148{
149    SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "SDL compiled without Haptic support.\n");
150    exit(1);
151}
152
153#endif
154
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