src/sdl2/main.c

   1 #ifdef __EMSCRIPTEN__
   2 #  include <emscripten.h>
   3 #endif
   4
   5 #include <SDL2/SDL.h>
   6 #include <stdio.h>
   7 #include <stdarg.h>
   8 #include <stdlib.h> // srand exit
   9 #include <string.h> // strcasecmp
  10 #include <assert.h>
  11 #include "system.h"
  12 #include "input.h"
  13
  14 #include "cp866.h"
  15
  16 #include "my.h" // fexists
  17 #include "player.h" // pl1 pl2
  18 #include "menu.h" // G_keyf
  19 #include "error.h" // logo
  20 #include "monster.h" // nomon
  21
  22 #include "files.h" // F_startup F_addwad F_initwads F_allocres
  23 #include "config.h" // CFG_args CFG_load CFG_save
  24 #include "memory.h" // M_startup
  25 #include "game.h" // G_init G_act
  26 #include "sound.h" // S_init S_done
  27 #include "music.h" // S_initmusic S_updatemusic S_donemusic
  28 #include "render.h" // R_init R_draw R_done
  29
  30 #define TITLE_STR "Doom 2D (SDL2)"
  31
  32 static Uint32 ticks;
  33 static int quit = 0;
  34 static SDL_Window *window;
  35 static SDL_GLContext context;
  36 static SDL_Surface *surf;
  37 static videomode_t vlist;
  38
  39 static const cfg_t arg[] = {
  40   {"file", NULL, Y_FILES},
  41   {"cheat", &cheat, Y_SW_ON},
  42 //  {"vga", &shot_vga, Y_SW_ON},
  43   {"sndvol", &snd_vol, Y_WORD},
  44   {"musvol", &mus_vol, Y_WORD},
  45 //  {"fullscr", &fullscreen, Y_SW_ON},
  46 //  {"window", &fullscreen, Y_SW_OFF},
  47   {"mon", &nomon, Y_SW_OFF},
  48 //  {"gamma", &gammaa, Y_DWORD},
  49   {"warp", &_warp, Y_BYTE},
  50 //  {"width", &SCRW, Y_DWORD},
  51 //  {"height", &SCRH, Y_DWORD},
  52 //  {"config", NULL, cfg_file, Y_STRING},
  53   {NULL, NULL, 0} // end
  54 };
  55
  56 static const cfg_t cfg[] = {
  57 //  {"screenshot", &shot_vga, Y_SW_ON},
  58   {"sound_volume", &snd_vol, Y_WORD},
  59   {"music_volume", &mus_vol, Y_WORD},
  60 //  {"fullscreen", &fullscreen, Y_SW_ON},
  61   {"sky", &w_horiz, Y_SW_ON},
  62 //  {"gamma", &gammaa, Y_DWORD},
  63 //  {"screen_width", &SCRW, Y_DWORD},
  64 //  {"screen_height", &SCRH, Y_DWORD},
  65   {"music_random", &music_random, Y_SW_ON},
  66   {"music_time", &music_time, Y_DWORD},
  67   {"music_fade", &music_fade, Y_DWORD},
  68   {"pl1_left", &pl1.kl, Y_KEY},
  69   {"pl1_right",&pl1.kr, Y_KEY},
  70   {"pl1_up", &pl1.ku, Y_KEY},
  71   {"pl1_down", &pl1.kd, Y_KEY},
  72   {"pl1_jump", &pl1.kj, Y_KEY},
  73   {"pl1_fire", &pl1.kf, Y_KEY},
  74   {"pl1_next", &pl1.kwr, Y_KEY},
  75   {"pl1_prev", &pl1.kwl, Y_KEY},
  76   {"pl1_use", &pl1.kp, Y_KEY},
  77   {"pl2_left", &pl2.kl, Y_KEY},
  78   {"pl2_right", &pl2.kr, Y_KEY},
  79   {"pl2_up", &pl2.ku, Y_KEY},
  80   {"pl2_down", &pl2.kd, Y_KEY},
  81   {"pl2_jump", &pl2.kj, Y_KEY},
  82   {"pl2_fire", &pl2.kf, Y_KEY},
  83   {"pl2_next", &pl2.kwr, Y_KEY},
  84   {"pl2_prev", &pl2.kwl, Y_KEY},
  85   {"pl2_use", &pl2.kp, Y_KEY},
  86   {NULL, NULL, 0} // end
  87 };
  88
  89 static void CFG_args (int argc, char **argv) {
  90   int i;
  91   for (i = 1; i < argc; i++) {
  92     if (argv[i][0] == '-' && argv[i][1] != 0) {
  93       if (i + 1 >= argc) {
  94         ERR_failinit("CFG_args: not enough arguments for parameter %s\n", argv[i]);
  95       } else {
  96         if (CFG_update_key(&argv[i][1], argv[i + 1], arg) != 0) {
  97           ERR_failinit("CFG_args: unknown parameter %s\n", argv[i]);
  98         }
  99         i += 1;
 100       }
 101     } else {
 102       ERR_failinit("CFG_args: something wrong here: %s\n", argv[i]);
 103     }
 104   }
 105 }
 106
 107 static void CFG_load (void) {
 108   CFG_read_config("default.cfg", cfg);
 109   CFG_read_config("doom2d.cfg", cfg);
 110 }
 111
 112 static void CFG_save (void) {
 113   CFG_update_config("doom2d.cfg", "doom2d.cfg", cfg, "generated by doom2d, do not modify");
 114   //CFG_update_config("doom2d.cfg", "doom2d.tmp", cfg, "temporary file");
 115   //CFG_update_config("doom2d.tmp", "doom2d.cfg", cfg, "generated by doom2d, do not modify");
 116   //remove("doom2d.tmp");
 117 }
 118
 119 /* --- error.h --- */
 120
 121 void logo (const char *s, ...) {
 122   va_list ap;
 123   va_start(ap, s);
 124   vprintf(s, ap);
 125   va_end(ap);
 126   fflush(stdout);
 127 }
 128
 129 void logo_gas (int cur, int all) {
 130   // stub
 131 }
 132
 133 void ERR_failinit (char *s, ...) {
 134   va_list ap;
 135   va_start(ap, s);
 136   vprintf(s, ap);
 137   va_end(ap);
 138   puts("");
 139   exit(1);
 140 }
 141
 142 void ERR_fatal (char *s, ...) {
 143   va_list ap;
 144   R_done();
 145   S_done();
 146   S_donemusic();
 147   M_shutdown();
 148   SDL_Quit();
 149   puts("\nКРИТИЧЕСКАЯ ОШИБКА:");
 150   va_start(ap, s);
 151   vprintf(s, ap);
 152   va_end(ap);
 153   puts("");
 154   exit(1);
 155 }
 156
 157 void ERR_quit (void) {
 158   quit = 1;
 159 }
 160
 161 /* --- system.h --- */
 162
 163 static int Y_resize_window (int w, int h, int fullscreen) {
 164   assert(w > 0);
 165   assert(h > 0);
 166   assert(window != NULL);
 167   if (surf != NULL) {
 168     if (surf->w != w || surf->h != h) {
 169       SDL_Surface *s = SDL_CreateRGBSurface(0, w, h, 8, 0, 0, 0, 0);
 170       if (s != NULL) {
 171         SDL_SetPaletteColors(s->format->palette, surf->format->palette->colors, 0, surf->format->palette->ncolors);
 172         SDL_FreeSurface(surf);
 173         surf = s;
 174       }
 175     }
 176   }
 177   SDL_SetWindowSize(window, w, h);
 178   Y_set_fullscreen(fullscreen);
 179   return 1;
 180 }
 181
 182 int Y_set_videomode_opengl (int w, int h, int fullscreen) {
 183   assert(w > 0);
 184   assert(h > 0);
 185   Uint32 flags;
 186   SDL_Window *win;
 187   SDL_GLContext ctx;
 188   if (window != NULL && context != NULL) {
 189     Y_resize_window(w, h, fullscreen);
 190     win = window;
 191   } else {
 192     flags = SDL_WINDOW_RESIZABLE | SDL_WINDOW_OPENGL;
 193     if (fullscreen) {
 194       flags = flags | SDL_WINDOW_FULLSCREEN;
 195     }
 196     // TODO set context version and type
 197 #ifdef __EMSCRIPTEN__
 198     SDL_GL_SetAttribute(SDL_GL_CONTEXT_PROFILE_MASK, SDL_GL_CONTEXT_PROFILE_ES);
 199     SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, 2);
 200     SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, 0);
 201 #else
 202     SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, 1);
 203     SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, 1);
 204 #endif
 205     SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 1);
 206     win = SDL_CreateWindow(TITLE_STR, SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED, w, h, flags);
 207     if (win != NULL) {
 208       ctx = SDL_GL_CreateContext(win);
 209       if (ctx != NULL) {
 210         Y_unset_videomode();
 211         window = win;
 212         context = ctx;
 213         SDL_GL_MakeCurrent(window, context);
 214       } else {
 215         SDL_DestroyWindow(win);
 216         win = NULL;
 217       }
 218     }
 219   }
 220   if (win == NULL) {
 221     logo("Y_set_videomode_opengl: error: %s\n", SDL_GetError());
 222   }
 223   return win != NULL;
 224 }
 225
 226 int Y_set_videomode_software (int w, int h, int fullscreen) {
 227   assert(w > 0);
 228   assert(h > 0);
 229   Uint32 flags;
 230   SDL_Surface *s;
 231   SDL_Window *win;
 232   if (window != NULL && surf != NULL) {
 233     Y_resize_window(w, h, fullscreen);
 234     win = window;
 235   } else {
 236     flags = SDL_WINDOW_RESIZABLE;
 237     if (fullscreen) {
 238       flags = flags | SDL_WINDOW_FULLSCREEN;
 239     }
 240     win = SDL_CreateWindow(TITLE_STR, SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED, w, h, flags);
 241     if (win != NULL) {
 242       s = SDL_CreateRGBSurface(0, w, h, 8, 0, 0, 0, 0);
 243       if (s != NULL) {
 244         Y_unset_videomode();
 245         window = win;
 246         surf = s;
 247       } else {
 248         SDL_DestroyWindow(win);
 249         win = NULL;
 250       }
 251     }
 252   }
 253   if (win == NULL) {
 254     logo("Y_set_videomode_software: error: %s\n", SDL_GetError());
 255   }
 256   return win != NULL;
 257 }
 258
 259 void Y_get_videomode (int *w, int *h) {
 260   if (window != NULL) {
 261     SDL_GetWindowSize(window, w, h);
 262   } else {
 263     *w = 0;
 264     *h = 0;
 265   }
 266 }
 267
 268 int Y_videomode_setted (void) {
 269   return window != NULL;
 270 }
 271
 272 void Y_unset_videomode (void) {
 273   if (window != NULL) {
 274     if (context != NULL) {
 275       SDL_GL_MakeCurrent(window, NULL);
 276       SDL_GL_DeleteContext(context);
 277       context = NULL;
 278     }
 279     if (surf != NULL) {
 280       SDL_FreeSurface(surf);
 281       surf = NULL;
 282     }
 283     SDL_DestroyWindow(window);
 284     window = NULL;
 285   }
 286 }
 287
 288 static void init_videomode_list (void) {
 289   int i, j, k;
 290   SDL_DisplayMode m;
 291   int n = SDL_GetNumDisplayModes(0);
 292   if (vlist.modes != NULL) {
 293     free(vlist.modes);
 294     vlist.modes = NULL;
 295     vlist.n = 0;
 296   }
 297   if (n > 0) {
 298     vlist.modes = malloc(n * sizeof(videomode_size_t));
 299     if (vlist.modes != NULL) {
 300       j = 0;
 301       for (i = 0; i < n; i++) {
 302         SDL_GetDisplayMode(0, i, &m);
 303         k = 0;
 304         while (k < j && (m.w != vlist.modes[k].w || m.h != vlist.modes[k].h)) {
 305           k++;
 306         }
 307         if (k >= j) {
 308           vlist.modes[j] = (videomode_size_t) {
 309             .w = m.w,
 310             .h = m.h
 311           };
 312           j++;
 313         }
 314       }
 315       vlist.n = j;
 316     }
 317   }
 318 }
 319
 320 const videomode_t *Y_get_videomode_list_opengl (int fullscreen) {
 321   init_videomode_list();
 322   return &vlist;
 323 }
 324
 325 const videomode_t *Y_get_videomode_list_software (int fullscreen) {
 326   init_videomode_list();
 327   return &vlist;
 328 }
 329
 330 void Y_set_fullscreen (int yes) {
 331   if (window != NULL) {
 332     SDL_SetWindowFullscreen(window, yes ? SDL_WINDOW_FULLSCREEN : 0);
 333   }
 334 }
 335
 336 int Y_get_fullscreen (void) {
 337   return (window != NULL) && (SDL_GetWindowFlags(window) & SDL_WINDOW_FULLSCREEN);
 338 }
 339
 340 void Y_swap_buffers (void) {
 341   assert(window != NULL);
 342   assert(context != NULL);
 343   SDL_GL_SwapWindow(window);
 344 }
 345
 346 void Y_get_buffer (byte **buf, int *w, int *h, int *pitch) {
 347   assert(window != NULL);
 348   assert(surf != NULL);
 349   *buf = surf->pixels;
 350   *w = surf->w;
 351   *h = surf->h;
 352   *pitch = surf->pitch;
 353 }
 354
 355 void Y_set_vga_palette (byte *vgapal) {
 356   assert(window != NULL);
 357   assert(surf != NULL);
 358   int i;
 359   byte *p = vgapal;
 360   SDL_Color colors[256];
 361   for (i = 0; i < 256; i++) {
 362     colors[i] = (SDL_Color) {
 363       .r = p[0] * 255 / 63,
 364       .g = p[1] * 255 / 63,
 365       .b = p[2] * 255 / 63
 366     };
 367     p += 3;
 368   }
 369   SDL_SetPaletteColors(surf->format->palette, colors, 0, 256);
 370 }
 371
 372 void Y_repaint_rect (int x, int y, int w, int h) {
 373   assert(window != NULL);
 374   assert(surf != NULL);
 375   SDL_Surface *s = SDL_GetWindowSurface(window);
 376   SDL_Rect r = (SDL_Rect) {
 377     .x = x,
 378     .y = y,
 379     .w = w,
 380     .h = h
 381   };
 382   SDL_BlitSurface(surf, &r, s, &r);
 383   SDL_UpdateWindowSurfaceRects(window, &r, 1);
 384 }
 385
 386 void Y_repaint (void) {
 387   Y_repaint_rect(0, 0, surf->w, surf->h);
 388 }
 389
 390 void Y_enable_text_input (void) {
 391   SDL_StartTextInput();
 392 }
 393
 394 void Y_disable_text_input (void) {
 395   SDL_StopTextInput();
 396 }
 397
 398 /* --- main --- */
 399
 400 static int sdl_to_key (int code) {
 401   switch (code) {
 402     case SDL_SCANCODE_0: return KEY_0;
 403     case SDL_SCANCODE_1: return KEY_1;
 404     case SDL_SCANCODE_2: return KEY_2;
 405     case SDL_SCANCODE_3: return KEY_3;
 406     case SDL_SCANCODE_4: return KEY_4;
 407     case SDL_SCANCODE_5: return KEY_5;
 408     case SDL_SCANCODE_6: return KEY_6;
 409     case SDL_SCANCODE_7: return KEY_7;
 410     case SDL_SCANCODE_8: return KEY_8;
 411     case SDL_SCANCODE_9: return KEY_9;
 412     case SDL_SCANCODE_A: return KEY_A;
 413     case SDL_SCANCODE_B: return KEY_B;
 414     case SDL_SCANCODE_C: return KEY_C;
 415     case SDL_SCANCODE_D: return KEY_D;
 416     case SDL_SCANCODE_E: return KEY_E;
 417     case SDL_SCANCODE_F: return KEY_F;
 418     case SDL_SCANCODE_G: return KEY_G;
 419     case SDL_SCANCODE_H: return KEY_H;
 420     case SDL_SCANCODE_I: return KEY_I;
 421     case SDL_SCANCODE_J: return KEY_J;
 422     case SDL_SCANCODE_K: return KEY_K;
 423     case SDL_SCANCODE_L: return KEY_L;
 424     case SDL_SCANCODE_M: return KEY_M;
 425     case SDL_SCANCODE_N: return KEY_N;
 426     case SDL_SCANCODE_O: return KEY_O;
 427     case SDL_SCANCODE_P: return KEY_P;
 428     case SDL_SCANCODE_Q: return KEY_Q;
 429     case SDL_SCANCODE_R: return KEY_R;
 430     case SDL_SCANCODE_S: return KEY_S;
 431     case SDL_SCANCODE_T: return KEY_T;
 432     case SDL_SCANCODE_U: return KEY_U;
 433     case SDL_SCANCODE_V: return KEY_V;
 434     case SDL_SCANCODE_W: return KEY_W;
 435     case SDL_SCANCODE_X: return KEY_X;
 436     case SDL_SCANCODE_Y: return KEY_Y;
 437     case SDL_SCANCODE_Z: return KEY_Z;
 438     case SDL_SCANCODE_RETURN: return KEY_RETURN;
 439     case SDL_SCANCODE_ESCAPE: return KEY_ESCAPE;
 440     case SDL_SCANCODE_BACKSPACE: return KEY_BACKSPACE;
 441     case SDL_SCANCODE_TAB: return KEY_TAB;
 442     case SDL_SCANCODE_SPACE: return KEY_SPACE;
 443     case SDL_SCANCODE_MINUS: return KEY_MINUS;
 444     case SDL_SCANCODE_EQUALS: return KEY_EQUALS;
 445     case SDL_SCANCODE_LEFTBRACKET: return KEY_LEFTBRACKET;
 446     case SDL_SCANCODE_RIGHTBRACKET: return KEY_RIGHTBRACKET;
 447     case SDL_SCANCODE_BACKSLASH: return KEY_BACKSLASH;
 448     case SDL_SCANCODE_SEMICOLON: return KEY_SEMICOLON;
 449     case SDL_SCANCODE_APOSTROPHE: return KEY_APOSTROPHE;
 450     case SDL_SCANCODE_GRAVE: return KEY_GRAVE;
 451     case SDL_SCANCODE_COMMA: return KEY_COMMA;
 452     case SDL_SCANCODE_PERIOD: return KEY_PERIOD;
 453     case SDL_SCANCODE_SLASH: return KEY_SLASH;
 454     case SDL_SCANCODE_CAPSLOCK: return KEY_CAPSLOCK;
 455     case SDL_SCANCODE_F1: return KEY_F1;
 456     case SDL_SCANCODE_F2: return KEY_F2;
 457     case SDL_SCANCODE_F3: return KEY_F3;
 458     case SDL_SCANCODE_F4: return KEY_F4;
 459     case SDL_SCANCODE_F5: return KEY_F5;
 460     case SDL_SCANCODE_F6: return KEY_F6;
 461     case SDL_SCANCODE_F7: return KEY_F7;
 462     case SDL_SCANCODE_F8: return KEY_F8;
 463     case SDL_SCANCODE_F9: return KEY_F9;
 464     case SDL_SCANCODE_F10: return KEY_F10;
 465     case SDL_SCANCODE_F11: return KEY_F11;
 466     case SDL_SCANCODE_F12: return KEY_F12;
 467     case SDL_SCANCODE_PRINTSCREEN: return KEY_PRINTSCREEN;
 468     case SDL_SCANCODE_SCROLLLOCK: return KEY_SCROLLLOCK;
 469     case SDL_SCANCODE_PAUSE: return KEY_PAUSE;
 470     case SDL_SCANCODE_INSERT: return KEY_INSERT;
 471     case SDL_SCANCODE_HOME: return KEY_HOME;
 472     case SDL_SCANCODE_PAGEUP: return KEY_PAGEUP;
 473     case SDL_SCANCODE_DELETE: return KEY_DELETE;
 474     case SDL_SCANCODE_END: return KEY_END;
 475     case SDL_SCANCODE_PAGEDOWN: return KEY_PAGEDOWN;
 476     case SDL_SCANCODE_RIGHT: return KEY_RIGHT;
 477     case SDL_SCANCODE_LEFT: return KEY_LEFT;
 478     case SDL_SCANCODE_DOWN: return KEY_DOWN;
 479     case SDL_SCANCODE_UP: return KEY_UP;
 480     case SDL_SCANCODE_NUMLOCKCLEAR: return KEY_NUMLOCK;
 481     case SDL_SCANCODE_KP_DIVIDE: return KEY_KP_DIVIDE;
 482     case SDL_SCANCODE_KP_MULTIPLY: return KEY_KP_MULTIPLY;
 483     case SDL_SCANCODE_KP_MINUS: return KEY_KP_MINUS;
 484     case SDL_SCANCODE_KP_PLUS: return KEY_KP_PLUS;
 485     case SDL_SCANCODE_KP_ENTER: return KEY_KP_ENTER;
 486     case SDL_SCANCODE_KP_0: return KEY_KP_0;
 487     case SDL_SCANCODE_KP_1: return KEY_KP_1;
 488     case SDL_SCANCODE_KP_2: return KEY_KP_2;
 489     case SDL_SCANCODE_KP_3: return KEY_KP_3;
 490     case SDL_SCANCODE_KP_4: return KEY_KP_4;
 491     case SDL_SCANCODE_KP_5: return KEY_KP_5;
 492     case SDL_SCANCODE_KP_6: return KEY_KP_6;
 493     case SDL_SCANCODE_KP_7: return KEY_KP_7;
 494     case SDL_SCANCODE_KP_8: return KEY_KP_8;
 495     case SDL_SCANCODE_KP_9: return KEY_KP_9;
 496     case SDL_SCANCODE_KP_PERIOD: return KEY_KP_PERIOD;
 497     case SDL_SCANCODE_SYSREQ: return KEY_SYSREQ;
 498     case SDL_SCANCODE_LCTRL: return KEY_LCTRL;
 499     case SDL_SCANCODE_LSHIFT: return KEY_LSHIFT;
 500     case SDL_SCANCODE_LALT: return KEY_LALT;
 501     case SDL_SCANCODE_LGUI: return KEY_LSUPER;
 502     case SDL_SCANCODE_RCTRL: return KEY_RCTRL;
 503     case SDL_SCANCODE_RSHIFT: return KEY_RSHIFT;
 504     case SDL_SCANCODE_RALT: return KEY_RALT;
 505     case SDL_SCANCODE_RGUI: return KEY_RSUPER;
 506     default: return KEY_UNKNOWN;
 507   }
 508 }
 509
 510 static void window_event_handler (SDL_WindowEvent *ev) {
 511   switch (ev->event) {
 512     case SDL_WINDOWEVENT_RESIZED:
 513       R_set_videomode(ev->data1, ev->data2, Y_get_fullscreen());
 514       break;
 515     case SDL_WINDOWEVENT_CLOSE:
 516       ERR_quit();
 517       break;
 518   }
 519 }
 520
 521 static int utf8_to_wchar (char *x) {
 522   int i = 0;
 523   byte *s = (byte*)x;
 524   if (s[0] < 0x80) {
 525     return s[0];
 526   } else if (s[0] < 0xE0) {
 527     if (s[0] - 192 >= 0 && s[1] >= 0x80 && s[1] < 0xE0) {
 528       i = (s[0] - 192) * 64 + s[1] - 128;
 529     }
 530   } else if (s[0] < 0xF0) {
 531     if (s[1] >= 0x80 && s[1] < 0xE0 && s[2] >= 0x80 && s[2] < 0xE0) {
 532       i = ((s[0] - 224) * 64 + s[1] - 128) * 64 + s[2] - 128;
 533     }
 534   }
 535   return i;
 536 }
 537
 538 static void poll_events (void) {
 539   int key, down, uch, ch;
 540   SDL_Event ev;
 541   while (SDL_PollEvent(&ev)) {
 542     switch (ev.type) {
 543       case SDL_QUIT:
 544         ERR_quit();
 545         break;
 546       case SDL_WINDOWEVENT:
 547         if (ev.window.windowID == SDL_GetWindowID(window)) {
 548           window_event_handler(&ev.window);
 549         }
 550         break;
 551       case SDL_KEYDOWN:
 552       case SDL_KEYUP:
 553         down = ev.type == SDL_KEYDOWN;
 554         key = sdl_to_key(ev.key.keysym.scancode);
 555         I_press(key, down);
 556         GM_key(key, down);
 557         break;
 558       case SDL_TEXTINPUT:
 559         uch = utf8_to_wchar(ev.text.text);
 560         ch = cp866_utoc(uch);
 561         if (ch >= 0) {
 562           GM_input(ch);
 563         }
 564         break;
 565     }
 566   }
 567 }
 568
 569 static void step (void) {
 570   poll_events();
 571   S_updatemusic();
 572   Uint32 t = SDL_GetTicks();
 573   if (t - ticks > DELAY) {
 574     ticks = t;
 575     G_act();
 576   }
 577   R_draw();
 578 }
 579
 580 int main (int argc, char **argv) {
 581   char *pw;
 582   logo("system: initialize SDL2\n");
 583   if (SDL_Init(SDL_INIT_TIMER | SDL_INIT_VIDEO | SDL_INIT_EVENTS) == -1) {
 584     logo("system: failed to init SDL2: %s\n", SDL_GetError());
 585     return 1;
 586   }
 587   // Player 1 defaults
 588   pl1.ku = KEY_KP_8;
 589   pl1.kd = KEY_KP_5;
 590   pl1.kl = KEY_KP_4;
 591   pl1.kr = KEY_KP_6;
 592   pl1.kf = KEY_PAGEDOWN;
 593   pl1.kj = KEY_DELETE;
 594   pl1.kwl = KEY_HOME;
 595   pl1.kwr = KEY_END;
 596   pl1.kp = KEY_KP_8;
 597   // Player 2 defaults
 598   pl2.ku = KEY_E;
 599   pl2.kd = KEY_D;
 600   pl2.kl = KEY_S;
 601   pl2.kr = KEY_F;
 602   pl2.kf = KEY_A;
 603   pl2.kj = KEY_Q;
 604   pl2.kwl = KEY_1;
 605   pl2.kwr = KEY_2;
 606   pl2.kp = KEY_E;
 607   srand(SDL_GetTicks());
 608   F_startup();
 609 #ifndef WIN32
 610   pw = "/usr/share/doom2d-rembo/doom2d.wad";
 611 #else
 612   pw = "doom2d.wad";
 613 #endif
 614   if (fexists(pw)) {
 615     F_addwad(pw);
 616   } else {
 617     F_addwad("doom2d.wad");
 618   }
 619   CFG_args(argc, argv);
 620   CFG_load();
 621   F_initwads();
 622   M_startup();
 623   F_allocres();
 624   S_init();
 625   S_initmusic();
 626   R_init();
 627   G_init();
 628   ticks = SDL_GetTicks();
 629 #ifdef __EMSCRIPTEN__
 630   emscripten_set_main_loop(step, 0, 1);
 631 #else
 632   while (!quit) {
 633     step();
 634   }
 635 #endif
 636   CFG_save();
 637   R_done();
 638   S_donemusic();
 639   S_done();
 640   M_shutdown();
 641   SDL_Quit();
 642   return 0;
 643 }