test/testhotplug.c
author Ryan C. Gordon <icculus@icculus.org>
Wed, 25 Jun 2014 17:24:06 -0400
changeset 8956 a99e30f2bf0a
parent 8778 d67a044fbec6
child 9356 e87d6e1e812a
permissions -rw-r--r--
Patched to compile on Windows.
     1 /*
     2   Copyright (C) 1997-2014 Sam Lantinga <slouken@libsdl.org>
     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 
    13 /* Simple program to test the SDL joystick hotplugging */
    14 
    15 #include <stdio.h>
    16 #include <stdlib.h>
    17 #include <string.h>
    18 
    19 #include "SDL.h"
    20 #include "SDL_haptic.h"
    21 
    22 #if !defined SDL_JOYSTICK_DISABLED && !defined SDL_HAPTIC_DISABLED
    23 
    24 int
    25 main(int argc, char *argv[])
    26 {
    27     SDL_Joystick *joystick = NULL;
    28     SDL_Haptic *haptic = NULL;
    29     SDL_JoystickID instance = -1;
    30     SDL_bool keepGoing = SDL_TRUE;
    31     int i;
    32     SDL_bool enable_haptic = SDL_TRUE;
    33     Uint32 init_subsystems = SDL_INIT_VIDEO | SDL_INIT_JOYSTICK;
    34     
    35     for (i = 1; i < argc; ++i) {
    36         if (SDL_strcasecmp(argv[i], "--nohaptic") == 0) {
    37             enable_haptic = SDL_FALSE;
    38         }
    39     }
    40 
    41     if(enable_haptic) {
    42         init_subsystems |= SDL_INIT_HAPTIC;
    43     }
    44     
    45     /* Enable standard application logging */
    46     SDL_LogSetPriority(SDL_LOG_CATEGORY_APPLICATION, SDL_LOG_PRIORITY_INFO);	
    47 
    48     SDL_SetHint(SDL_HINT_JOYSTICK_ALLOW_BACKGROUND_EVENTS, "1");
    49 
    50     /* Initialize SDL (Note: video is required to start event loop) */
    51     if (SDL_Init(init_subsystems) < 0) {
    52         SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Couldn't initialize SDL: %s\n", SDL_GetError());
    53         exit(1);
    54     }
    55 
    56     /*
    57     //SDL_CreateWindow("Dummy", SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED, 128, 128, 0);
    58     */
    59 
    60     SDL_Log("There are %d joysticks at startup\n", SDL_NumJoysticks());
    61     if (enable_haptic)
    62         SDL_Log("There are %d haptic devices at startup\n", SDL_NumHaptics());
    63 
    64     while(keepGoing)
    65     {
    66         SDL_Event event;
    67         while(SDL_PollEvent(&event))
    68         {
    69             switch(event.type)
    70             {
    71                 case SDL_QUIT:
    72                     keepGoing = SDL_FALSE;
    73                     break;
    74                 case SDL_JOYDEVICEADDED:
    75                     if (joystick != NULL)
    76                     {
    77                         SDL_Log("Only one joystick supported by this test\n");
    78                     }
    79                     else
    80                     {
    81                         joystick = SDL_JoystickOpen(event.jdevice.which);
    82                         instance = SDL_JoystickInstanceID(joystick);
    83                         SDL_Log("Joy Added  : %d : %s\n", event.jdevice.which, SDL_JoystickName(joystick));
    84                         if (enable_haptic)
    85                         {
    86                             if (SDL_JoystickIsHaptic(joystick))
    87                             {
    88                                 haptic = SDL_HapticOpenFromJoystick(joystick);
    89                                 if (haptic)
    90                                 {
    91                                     SDL_Log("Joy Haptic Opened\n");
    92                                     if (SDL_HapticRumbleInit( haptic ) != 0)
    93                                     {
    94                                         SDL_Log("Could not init Rumble!: %s\n", SDL_GetError());
    95                                         SDL_HapticClose(haptic);
    96                                         haptic = NULL;
    97                                     }
    98                                 } else {
    99                                     SDL_Log("Joy haptic open FAILED!: %s\n", SDL_GetError());
   100                                 }
   101                             }
   102                             else
   103                             {
   104                                 SDL_Log("No haptic found\n");
   105                             }
   106                         }
   107                     }
   108                     break;
   109                 case SDL_JOYDEVICEREMOVED:
   110                     if (instance == event.jdevice.which)
   111                     {
   112                         SDL_Log("Joy Removed: %d\n", event.jdevice.which);
   113                         instance = -1;
   114                         if(enable_haptic && haptic)
   115                         {
   116                             SDL_HapticClose(haptic);
   117                             haptic = NULL;
   118                         }
   119                         SDL_JoystickClose(joystick);
   120                         joystick = NULL;
   121                     } else {
   122                         SDL_Log("Unknown joystick diconnected\n");
   123                     }
   124                     break;
   125                 case SDL_JOYAXISMOTION:
   126 /*
   127 //                    SDL_Log("Axis Move: %d\n", event.jaxis.axis);
   128 */
   129                     if (enable_haptic)
   130                         SDL_HapticRumblePlay(haptic, 0.25, 250);
   131                     break;
   132                 case SDL_JOYBUTTONDOWN:
   133                     SDL_Log("Button Press: %d\n", event.jbutton.button);
   134                     if(enable_haptic && haptic)
   135                     {
   136                         SDL_HapticRumblePlay(haptic, 0.25, 250);
   137                     }
   138 					if (event.jbutton.button == 0) {
   139 						SDL_Log("Exiting due to button press of button 0\n");
   140 						keepGoing = SDL_FALSE;
   141 					}
   142                     break;
   143                 case SDL_JOYBUTTONUP:
   144                     SDL_Log("Button Release: %d\n", event.jbutton.button);
   145                     break;
   146             }
   147         }
   148     }
   149 
   150     SDL_Quit();
   151 
   152     return 0;
   153 }
   154 #else
   155 
   156 int
   157 main(int argc, char *argv[])
   158 {
   159     SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "SDL compiled without Joystick and haptic support.\n");
   160     return 1;
   161 }
   162 
   163 #endif