test/testhotplug.c
author Cole Campbell <cole.campbell@twistedlogik.net>
Tue, 09 Jan 2018 19:11:34 -0500
changeset 11854 934d77867168
parent 11811 5d94cb6b24d3
child 12503 806492103856
permissions -rw-r--r--
Allow Android Java shim to be built as an AAR
     1 /*
     2   Copyright (C) 1997-2018 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 
    21 #if !defined SDL_JOYSTICK_DISABLED && !defined SDL_HAPTIC_DISABLED
    22 
    23 int
    24 main(int argc, char *argv[])
    25 {
    26     SDL_Joystick *joystick = NULL;
    27     SDL_Haptic *haptic = NULL;
    28     SDL_JoystickID instance = -1;
    29     SDL_bool keepGoing = SDL_TRUE;
    30     int i;
    31     SDL_bool enable_haptic = SDL_TRUE;
    32     Uint32 init_subsystems = SDL_INIT_VIDEO | SDL_INIT_JOYSTICK;
    33     
    34     for (i = 1; i < argc; ++i) {
    35         if (SDL_strcasecmp(argv[i], "--nohaptic") == 0) {
    36             enable_haptic = SDL_FALSE;
    37         }
    38     }
    39 
    40     if(enable_haptic) {
    41         init_subsystems |= SDL_INIT_HAPTIC;
    42     }
    43     
    44     /* Enable standard application logging */
    45     SDL_LogSetPriority(SDL_LOG_CATEGORY_APPLICATION, SDL_LOG_PRIORITY_INFO);
    46 
    47     SDL_SetHint(SDL_HINT_JOYSTICK_ALLOW_BACKGROUND_EVENTS, "1");
    48 
    49     /* Initialize SDL (Note: video is required to start event loop) */
    50     if (SDL_Init(init_subsystems) < 0) {
    51         SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Couldn't initialize SDL: %s\n", SDL_GetError());
    52         exit(1);
    53     }
    54 
    55     /*
    56     //SDL_CreateWindow("Dummy", SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED, 128, 128, 0);
    57     */
    58 
    59     SDL_Log("There are %d joysticks at startup\n", SDL_NumJoysticks());
    60     if (enable_haptic)
    61         SDL_Log("There are %d haptic devices at startup\n", SDL_NumHaptics());
    62 
    63     while(keepGoing)
    64     {
    65         SDL_Event event;
    66         while(SDL_PollEvent(&event))
    67         {
    68             switch(event.type)
    69             {
    70                 case SDL_QUIT:
    71                     keepGoing = SDL_FALSE;
    72                     break;
    73                 case SDL_JOYDEVICEADDED:
    74                     if (joystick != NULL)
    75                     {
    76                         SDL_Log("Only one joystick supported by this test\n");
    77                     }
    78                     else
    79                     {
    80                         joystick = SDL_JoystickOpen(event.jdevice.which);
    81                         instance = SDL_JoystickInstanceID(joystick);
    82                         SDL_Log("Joy Added  : %d : %s\n", event.jdevice.which, SDL_JoystickName(joystick));
    83                         if (enable_haptic)
    84                         {
    85                             if (SDL_JoystickIsHaptic(joystick))
    86                             {
    87                                 haptic = SDL_HapticOpenFromJoystick(joystick);
    88                                 if (haptic)
    89                                 {
    90                                     SDL_Log("Joy Haptic Opened\n");
    91                                     if (SDL_HapticRumbleInit( haptic ) != 0)
    92                                     {
    93                                         SDL_Log("Could not init Rumble!: %s\n", SDL_GetError());
    94                                         SDL_HapticClose(haptic);
    95                                         haptic = NULL;
    96                                     }
    97                                 } else {
    98                                     SDL_Log("Joy haptic open FAILED!: %s\n", SDL_GetError());
    99                                 }
   100                             }
   101                             else
   102                             {
   103                                 SDL_Log("No haptic found\n");
   104                             }
   105                         }
   106                     }
   107                     break;
   108                 case SDL_JOYDEVICEREMOVED:
   109                     if (instance == event.jdevice.which)
   110                     {
   111                         SDL_Log("Joy Removed: %d\n", event.jdevice.which);
   112                         instance = -1;
   113                         if(enable_haptic && haptic)
   114                         {
   115                             SDL_HapticClose(haptic);
   116                             haptic = NULL;
   117                         }
   118                         SDL_JoystickClose(joystick);
   119                         joystick = NULL;
   120                     } else {
   121                         SDL_Log("Unknown joystick diconnected\n");
   122                     }
   123                     break;
   124                 case SDL_JOYAXISMOTION:
   125 /*
   126 //                    SDL_Log("Axis Move: %d\n", event.jaxis.axis);
   127 */
   128                     if (enable_haptic)
   129                         SDL_HapticRumblePlay(haptic, 0.25, 250);
   130                     break;
   131                 case SDL_JOYBUTTONDOWN:
   132                     SDL_Log("Button Press: %d\n", event.jbutton.button);
   133                     if(enable_haptic && haptic)
   134                     {
   135                         SDL_HapticRumblePlay(haptic, 0.25, 250);
   136                     }
   137                     if (event.jbutton.button == 0) {
   138                         SDL_Log("Exiting due to button press of button 0\n");
   139                         keepGoing = SDL_FALSE;
   140                     }
   141                     break;
   142                 case SDL_JOYBUTTONUP:
   143                     SDL_Log("Button Release: %d\n", event.jbutton.button);
   144                     break;
   145             }
   146         }
   147     }
   148 
   149     SDL_Quit();
   150 
   151     return 0;
   152 }
   153 #else
   154 
   155 int
   156 main(int argc, char *argv[])
   157 {
   158     SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "SDL compiled without Joystick and haptic support.\n");
   159     return 1;
   160 }
   161 
   162 #endif