test/controllermap.c
author Ryan C. Gordon <icculus@icculus.org>
Mon, 10 Feb 2014 01:43:01 -0500
changeset 8200 17b801b31cd5
parent 8198 51935d107921
child 8201 4a16c26b6055
permissions -rw-r--r--
Removed unused function.
     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 /* Game controller mapping generator */
    14 /* Gabriel Jacobo <gabomdq@gmail.com> */
    15 
    16 #include <stdio.h>
    17 #include <stdlib.h>
    18 #include <string.h>
    19 
    20 #include "SDL.h"
    21 
    22 #ifndef SDL_JOYSTICK_DISABLED
    23 
    24 #ifdef __IPHONEOS__
    25 #define SCREEN_WIDTH    320
    26 #define SCREEN_HEIGHT   480
    27 #else
    28 #define SCREEN_WIDTH    512
    29 #define SCREEN_HEIGHT   317
    30 #endif
    31 
    32 #define MAP_WIDTH 512
    33 #define MAP_HEIGHT 317
    34 
    35 #define MARKER_BUTTON 1
    36 #define MARKER_AXIS 2
    37 
    38 typedef struct MappingStep
    39 {
    40     int x, y;
    41     double angle;
    42     int marker;
    43     char *field;
    44     int axis, button, hat, hat_value;
    45     char mapping[4096];
    46 }MappingStep;
    47 
    48 
    49 SDL_Texture *
    50 LoadTexture(SDL_Renderer *renderer, char *file, SDL_bool transparent)
    51 {
    52     SDL_Surface *temp;
    53     SDL_Texture *texture;
    54 
    55     /* Load the sprite image */
    56     temp = SDL_LoadBMP(file);
    57     if (temp == NULL) {
    58         SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Couldn't load %s: %s", file, SDL_GetError());
    59         return NULL;
    60     }
    61 
    62     /* Set transparent pixel as the pixel at (0,0) */
    63     if (transparent) {
    64         if (temp->format->palette) {
    65             SDL_SetColorKey(temp, SDL_TRUE, *(Uint8 *) temp->pixels);
    66         } else {
    67             switch (temp->format->BitsPerPixel) {
    68             case 15:
    69                 SDL_SetColorKey(temp, SDL_TRUE,
    70                                 (*(Uint16 *) temp->pixels) & 0x00007FFF);
    71                 break;
    72             case 16:
    73                 SDL_SetColorKey(temp, SDL_TRUE, *(Uint16 *) temp->pixels);
    74                 break;
    75             case 24:
    76                 SDL_SetColorKey(temp, SDL_TRUE,
    77                                 (*(Uint32 *) temp->pixels) & 0x00FFFFFF);
    78                 break;
    79             case 32:
    80                 SDL_SetColorKey(temp, SDL_TRUE, *(Uint32 *) temp->pixels);
    81                 break;
    82             }
    83         }
    84     }
    85 
    86     /* Create textures from the image */
    87     texture = SDL_CreateTextureFromSurface(renderer, temp);
    88     if (!texture) {
    89         SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Couldn't create texture: %s\n", SDL_GetError());
    90         SDL_FreeSurface(temp);
    91         return NULL;
    92     }
    93     SDL_FreeSurface(temp);
    94 
    95     /* We're ready to roll. :) */
    96     return texture;
    97 }
    98 
    99 static SDL_bool
   100 WatchJoystick(SDL_Joystick * joystick)
   101 {
   102     SDL_Window *window = NULL;
   103     SDL_Renderer *screen = NULL;
   104     SDL_Texture *background, *button, *axis, *marker;
   105     const char *name = NULL;
   106     SDL_bool retval = SDL_FALSE;
   107     SDL_bool done = SDL_FALSE, next=SDL_FALSE;
   108     SDL_Event event;
   109     SDL_Rect dst;
   110     int s, _s;
   111     Uint8 alpha=200, alpha_step = -1;
   112     Uint32 alpha_ticks;
   113     char mapping[4096], temp[4096];
   114     MappingStep *step;
   115     MappingStep steps[] = {
   116         {342, 132,  0.0,  MARKER_BUTTON, "x", -1, -1, -1, -1, ""},
   117         {387, 167,  0.0,  MARKER_BUTTON, "a", -1, -1, -1, -1, ""},
   118         {431, 132,  0.0,  MARKER_BUTTON, "b", -1, -1, -1, -1, ""},
   119         {389, 101,  0.0,  MARKER_BUTTON, "y", -1, -1, -1, -1, ""},
   120         {174, 132,  0.0,  MARKER_BUTTON, "back", -1, -1, -1, -1, ""},
   121         {233, 132,  0.0,  MARKER_BUTTON, "guide", -1, -1, -1, -1, ""},
   122         {289, 132,  0.0,  MARKER_BUTTON, "start", -1, -1, -1, -1, ""},        
   123         {116, 217,  0.0,  MARKER_BUTTON, "dpleft", -1, -1, -1, -1, ""},
   124         {154, 249,  0.0,  MARKER_BUTTON, "dpdown", -1, -1, -1, -1, ""},
   125         {186, 217,  0.0,  MARKER_BUTTON, "dpright", -1, -1, -1, -1, ""},
   126         {154, 188,  0.0,  MARKER_BUTTON, "dpup", -1, -1, -1, -1, ""},
   127         {77,  40,   0.0,  MARKER_BUTTON, "leftshoulder", -1, -1, -1, -1, ""},
   128         {91, 0,    0.0,  MARKER_BUTTON, "lefttrigger", -1, -1, -1, -1, ""},
   129         {396, 36,   0.0,  MARKER_BUTTON, "rightshoulder", -1, -1, -1, -1, ""},
   130         {375, 0,    0.0,  MARKER_BUTTON, "righttrigger", -1, -1, -1, -1, ""},
   131         {75,  154,  0.0,  MARKER_BUTTON, "leftstick", -1, -1, -1, -1, ""},
   132         {305, 230,  0.0,  MARKER_BUTTON, "rightstick", -1, -1, -1, -1, ""},
   133         {75,  154,  0.0,  MARKER_AXIS,   "leftx", -1, -1, -1, -1, ""},
   134         {75,  154,  90.0, MARKER_AXIS,   "lefty", -1, -1, -1, -1, ""},        
   135         {305, 230,  0.0,  MARKER_AXIS,   "rightx", -1, -1, -1, -1, ""},
   136         {305, 230,  90.0, MARKER_AXIS,   "righty", -1, -1, -1, -1, ""},
   137     };
   138 
   139     /* Create a window to display joystick axis position */
   140     window = SDL_CreateWindow("Game Controller Map", SDL_WINDOWPOS_CENTERED,
   141                               SDL_WINDOWPOS_CENTERED, SCREEN_WIDTH,
   142                               SCREEN_HEIGHT, 0);
   143     if (window == NULL) {
   144         SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Couldn't create window: %s\n", SDL_GetError());
   145         return SDL_FALSE;
   146     }
   147 
   148     screen = SDL_CreateRenderer(window, -1, 0);
   149     if (screen == NULL) {
   150         SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Couldn't create renderer: %s\n", SDL_GetError());
   151         SDL_DestroyWindow(window);
   152         return SDL_FALSE;
   153     }
   154     
   155     background = LoadTexture(screen, "controllermap.bmp", SDL_FALSE);
   156     button = LoadTexture(screen, "button.bmp", SDL_TRUE);
   157     axis = LoadTexture(screen, "axis.bmp", SDL_TRUE);
   158     SDL_RaiseWindow(window);
   159 
   160     /* Print info about the joystick we are watching */
   161     name = SDL_JoystickName(joystick);
   162     SDL_Log("Watching joystick %d: (%s)\n", SDL_JoystickInstanceID(joystick),
   163            name ? name : "Unknown Joystick");
   164     SDL_Log("Joystick has %d axes, %d hats, %d balls, and %d buttons\n",
   165            SDL_JoystickNumAxes(joystick), SDL_JoystickNumHats(joystick),
   166            SDL_JoystickNumBalls(joystick), SDL_JoystickNumButtons(joystick));
   167     
   168     SDL_Log("\n\n\
   169     ====================================================================================\n\
   170     Press the buttons on your controller when indicated\n\
   171     (Your controller may look different than the picture)\n\
   172     If you want to correct a mistake, press backspace or the back button on your device\n\
   173     To skip a button, press SPACE or click/touch the screen\n\
   174     To exit, press ESC\n\
   175     ====================================================================================\n");
   176     
   177     /* Initialize mapping with GUID and name */
   178     SDL_JoystickGetGUIDString(SDL_JoystickGetGUID(joystick), temp, SDL_arraysize(temp));
   179     SDL_snprintf(mapping, SDL_arraysize(mapping), "%s,%s,platform:%s,",
   180         temp, name ? name : "Unknown Joystick", SDL_GetPlatform());
   181 
   182     /* Loop, getting joystick events! */
   183     for(s=0; s<SDL_arraysize(steps) && !done;) {
   184         /* blank screen, set up for drawing this frame. */
   185         step = &steps[s];
   186         SDL_strlcpy(step->mapping, mapping, SDL_arraysize(step->mapping));
   187         step->axis = -1;
   188         step->button = -1;
   189         step->hat = -1;
   190         step->hat_value = -1;
   191         SDL_SetClipboardText("TESTING TESTING 123");
   192         
   193         switch(step->marker) {
   194             case MARKER_AXIS:
   195                 marker = axis;
   196                 break;
   197             case MARKER_BUTTON:
   198                 marker = button;
   199                 break;
   200             default:
   201                 break;
   202         }
   203         
   204         dst.x = step->x;
   205         dst.y = step->y;
   206         SDL_QueryTexture(marker, NULL, NULL, &dst.w, &dst.h);
   207         next=SDL_FALSE;
   208         
   209         while (!done && !next) {
   210             if (SDL_GetTicks() - alpha_ticks > 5) {
   211                 alpha_ticks = SDL_GetTicks();
   212                 alpha += alpha_step;
   213                 if (alpha == 255) {
   214                     alpha_step = -1;
   215                 }
   216                 if (alpha < 128) {
   217                     alpha_step = 1;
   218                 }
   219             }
   220             
   221             SDL_RenderCopy(screen, background, NULL, NULL);
   222             SDL_SetTextureAlphaMod(marker, alpha);
   223             SDL_SetTextureColorMod(marker, 10, 255, 21);
   224             SDL_RenderCopyEx(screen, marker, NULL, &dst, step->angle, NULL, 0);
   225             SDL_RenderPresent(screen);
   226             
   227             if (SDL_PollEvent(&event)) {
   228                 switch (event.type) {
   229                 case SDL_JOYAXISMOTION:
   230                     if (event.jaxis.value > 20000 || event.jaxis.value < -20000) {
   231                         for (_s = 0; _s < s; _s++) {
   232                             if (steps[_s].axis == event.jaxis.axis) {
   233                                 break;
   234                             }
   235                         }
   236                         if (_s == s) {
   237                             step->axis = event.jaxis.axis;
   238                             SDL_strlcat(mapping, step->field, SDL_arraysize(mapping));
   239                             SDL_snprintf(temp, SDL_arraysize(temp), ":a%u,", event.jaxis.axis);
   240                             SDL_strlcat(mapping, temp, SDL_arraysize(mapping));
   241                             s++;
   242                             next=SDL_TRUE;
   243                         }
   244                     }
   245                     
   246                     break;
   247                 case SDL_JOYHATMOTION:
   248                         for (_s = 0; _s < s; _s++) {
   249                             if (steps[_s].hat == event.jhat.hat && steps[_s].hat_value == event.jhat.value) {
   250                                 break;
   251                             }
   252                         }
   253                         if (_s == s) {
   254                             step->hat = event.jhat.hat;
   255                             step->hat_value = event.jhat.value;
   256                             SDL_strlcat(mapping, step->field, SDL_arraysize(mapping));
   257                             SDL_snprintf(temp, SDL_arraysize(temp), ":h%u.%u,", event.jhat.hat, event.jhat.value );
   258                             SDL_strlcat(mapping, temp, SDL_arraysize(mapping));
   259                             s++;
   260                             next=SDL_TRUE;
   261                         }
   262                     break;
   263                 case SDL_JOYBALLMOTION:
   264                     break;
   265                 case SDL_JOYBUTTONUP:
   266                     for (_s = 0; _s < s; _s++) {
   267                         if (steps[_s].button == event.jbutton.button) {
   268                             break;
   269                         }
   270                     }
   271                     if (_s == s) {
   272                         step->button = event.jbutton.button;
   273                         SDL_strlcat(mapping, step->field, SDL_arraysize(mapping));
   274                         SDL_snprintf(temp, SDL_arraysize(temp), ":b%u,", event.jbutton.button);
   275                         SDL_strlcat(mapping, temp, SDL_arraysize(mapping));
   276                         s++;
   277                         next=SDL_TRUE;
   278                     }
   279                     break;
   280                 case SDL_FINGERDOWN:
   281                 case SDL_MOUSEBUTTONDOWN:
   282                     /* Skip this step */
   283                     s++;
   284                     next=SDL_TRUE;
   285                     break;
   286                 case SDL_KEYDOWN:
   287                     if (event.key.keysym.sym == SDLK_BACKSPACE || event.key.keysym.sym == SDLK_AC_BACK) {
   288                         /* Undo! */
   289                         if (s > 0) {
   290                             SDL_strlcpy(mapping, step->mapping, SDL_arraysize(step->mapping));
   291                             s--;
   292                             next = SDL_TRUE;
   293                         }
   294                         break;
   295                     }
   296                     if (event.key.keysym.sym == SDLK_SPACE) {
   297                         /* Skip this step */
   298                         s++;
   299                         next=SDL_TRUE;
   300                         break;
   301                     }
   302                     
   303                     if ((event.key.keysym.sym != SDLK_ESCAPE)) {
   304                         break;
   305                     }
   306                     /* Fall through to signal quit */
   307                 case SDL_QUIT:
   308                     done = SDL_TRUE;
   309                     break;
   310                 default:
   311                     break;
   312                 }
   313             }
   314         }
   315 
   316     }
   317 
   318     if (s == SDL_arraysize(steps) ) {
   319         SDL_Log("Mapping:\n\n%s\n\n", mapping);
   320         /* Print to stdout as well so the user can cat the output somewhere */
   321         printf("%s\n", mapping);
   322     }
   323     
   324     while(SDL_PollEvent(&event)) {};
   325     
   326     SDL_DestroyRenderer(screen);
   327     SDL_DestroyWindow(window);
   328     return retval;
   329 }
   330 
   331 int
   332 main(int argc, char *argv[])
   333 {
   334     const char *name;
   335     int i;
   336     SDL_Joystick *joystick;
   337 
   338     /* Enable standard application logging */
   339     SDL_LogSetPriority(SDL_LOG_CATEGORY_APPLICATION, SDL_LOG_PRIORITY_INFO);	
   340 
   341     /* Initialize SDL (Note: video is required to start event loop) */
   342     if (SDL_Init(SDL_INIT_VIDEO | SDL_INIT_JOYSTICK) < 0) {
   343         SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Couldn't initialize SDL: %s\n", SDL_GetError());
   344         exit(1);
   345     }
   346 
   347     /* Print information about the joysticks */
   348     SDL_Log("There are %d joysticks attached\n", SDL_NumJoysticks());
   349     for (i = 0; i < SDL_NumJoysticks(); ++i) {
   350         name = SDL_JoystickNameForIndex(i);
   351         SDL_Log("Joystick %d: %s\n", i, name ? name : "Unknown Joystick");
   352         joystick = SDL_JoystickOpen(i);
   353         if (joystick == NULL) {
   354             SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "SDL_JoystickOpen(%d) failed: %s\n", i,
   355                     SDL_GetError());
   356         } else {
   357             char guid[64];
   358             SDL_JoystickGetGUIDString(SDL_JoystickGetGUID(joystick),
   359                                       guid, sizeof (guid));
   360             SDL_Log("       axes: %d\n", SDL_JoystickNumAxes(joystick));
   361             SDL_Log("      balls: %d\n", SDL_JoystickNumBalls(joystick));
   362             SDL_Log("       hats: %d\n", SDL_JoystickNumHats(joystick));
   363             SDL_Log("    buttons: %d\n", SDL_JoystickNumButtons(joystick));
   364             SDL_Log("instance id: %d\n", SDL_JoystickInstanceID(joystick));
   365             SDL_Log("       guid: %s\n", guid);
   366             SDL_JoystickClose(joystick);
   367         }
   368     }
   369 
   370 #ifdef ANDROID
   371     if (SDL_NumJoysticks() > 0) {
   372 #else
   373     if (argv[1]) {
   374 #endif
   375         SDL_bool reportederror = SDL_FALSE;
   376         SDL_bool keepGoing = SDL_TRUE;
   377         SDL_Event event;
   378         int device;
   379 #ifdef ANDROID
   380         device = 0;
   381 #else
   382         device = atoi(argv[1]);
   383 #endif
   384         joystick = SDL_JoystickOpen(device);
   385 
   386         while ( keepGoing ) {
   387             if (joystick == NULL) {
   388                 if ( !reportederror ) {
   389                     SDL_Log("Couldn't open joystick %d: %s\n", device, SDL_GetError());
   390                     keepGoing = SDL_FALSE;
   391                     reportederror = SDL_TRUE;
   392                 }
   393             } else {
   394                 reportederror = SDL_FALSE;
   395                 keepGoing = WatchJoystick(joystick);
   396                 SDL_JoystickClose(joystick);
   397             }
   398 
   399             joystick = NULL;
   400             if (keepGoing) {
   401                 SDL_Log("Waiting for attach\n");
   402             }
   403             while (keepGoing) {
   404                 SDL_WaitEvent(&event);
   405                 if ((event.type == SDL_QUIT) || (event.type == SDL_FINGERDOWN)
   406                     || (event.type == SDL_MOUSEBUTTONDOWN)) {
   407                     keepGoing = SDL_FALSE;
   408                 } else if (event.type == SDL_JOYDEVICEADDED) {
   409                     joystick = SDL_JoystickOpen(device);
   410                     break;
   411                 }
   412             }
   413         }
   414     }
   415     else {
   416         SDL_Log("\n\nUsage: ./controllermap number\nFor example: ./controllermap 0\nOr: ./controllermap 0 >> gamecontrollerdb.txt");
   417     }
   418     SDL_QuitSubSystem(SDL_INIT_VIDEO | SDL_INIT_JOYSTICK);
   419 
   420     return 0;
   421 }
   422 
   423 #else
   424 
   425 int
   426 main(int argc, char *argv[])
   427 {
   428     SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "SDL compiled without Joystick support.\n");
   429     exit(1);
   430 }
   431 
   432 #endif