test/testhotplug.c
author Edward Rudd <urkle@outoforder.cc>
Fri, 07 Feb 2014 09:35:33 -0500
changeset 8188 47b9ab82bebf
parent 8181 3632013330ad
child 8776 29aac8b813d9
permissions -rw-r--r--
slight adjustment to the hot plug test to allow it to be run with hap tics disabled
     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     //SDL_CreateWindow("Dummy", SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED, 128, 128, 0);
    57 
    58     SDL_Log("There are %d joysticks at startup\n", SDL_NumJoysticks());
    59     if (enable_haptic)
    60         SDL_Log("There are %d haptic devices at startup\n", SDL_NumHaptics());
    61 
    62     while(keepGoing)
    63     {
    64         SDL_Event event;
    65         while(SDL_PollEvent(&event))
    66         {
    67             switch(event.type)
    68             {
    69                 case SDL_QUIT:
    70                     keepGoing = SDL_FALSE;
    71                     break;
    72                 case SDL_JOYDEVICEADDED:
    73                     if (joystick != NULL)
    74                     {
    75                         SDL_Log("Only one joystick supported by this test\n");
    76                     }
    77                     else
    78                     {
    79                         joystick = SDL_JoystickOpen(event.jdevice.which);
    80                         instance = SDL_JoystickInstanceID(joystick);
    81                         SDL_Log("Joy Added  : %d : %s\n", event.jdevice.which, SDL_JoystickName(joystick));
    82                         if (enable_haptic)
    83                         {
    84                             if (SDL_JoystickIsHaptic(joystick))
    85                             {
    86                                 haptic = SDL_HapticOpenFromJoystick(joystick);
    87                                 if (haptic)
    88                                 {
    89                                     SDL_Log("Joy Haptic Opened\n");
    90                                     if (SDL_HapticRumbleInit( haptic ) != 0)
    91                                     {
    92                                         SDL_Log("Could not init Rumble!: %s\n", SDL_GetError());
    93                                         SDL_HapticClose(haptic);
    94                                         haptic = NULL;
    95                                     }
    96                                 } else {
    97                                     SDL_Log("Joy haptic open FAILED!: %s\n", SDL_GetError());
    98                                 }
    99                             }
   100                             else
   101                             {
   102                                 SDL_Log("No haptic found\n");
   103                             }
   104                         }
   105                     }
   106                     break;
   107                 case SDL_JOYDEVICEREMOVED:
   108                     if (instance == event.jdevice.which)
   109                     {
   110                         SDL_Log("Joy Removed: %d\n", event.jdevice.which);
   111                         instance = -1;
   112                         if(enable_haptic && haptic)
   113                         {
   114                             SDL_HapticClose(haptic);
   115                             haptic = NULL;
   116                         }
   117                         SDL_JoystickClose(joystick);
   118                         joystick = NULL;
   119                     } else {
   120                         SDL_Log("Unknown joystick diconnected\n");
   121                     }
   122                     break;
   123                 case SDL_JOYAXISMOTION:
   124 //                    SDL_Log("Axis Move: %d\n", event.jaxis.axis);
   125                     if (enable_haptic)
   126                         SDL_HapticRumblePlay(haptic, 0.25, 250);
   127                     break;
   128                 case SDL_JOYBUTTONDOWN:
   129                     SDL_Log("Button Press: %d\n", event.jbutton.button);
   130                     if(enable_haptic && haptic)
   131                     {
   132                         SDL_HapticRumblePlay(haptic, 0.25, 250);
   133                     }
   134 					if (event.jbutton.button == 0) {
   135 						SDL_Log("Exiting due to button press of button 0\n");
   136 						keepGoing = SDL_FALSE;
   137 					}
   138                     break;
   139                 case SDL_JOYBUTTONUP:
   140                     SDL_Log("Button Release: %d\n", event.jbutton.button);
   141                     break;
   142             }
   143         }
   144     }
   145 
   146     SDL_Quit();
   147 
   148     return 0;
   149 }
   150 #else
   151 
   152 int
   153 main(int argc, char *argv[])
   154 {
   155     SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "SDL compiled without Joystick and haptic support.\n");
   156     return 1;
   157 }
   158 
   159 #endif