src/sdl/main.c

   1 /*
   2    Copyright (C) Prikol Software 1996-1997
   3    Copyright (C) Aleksey Volynskov 1996-1997
   4    Copyright (C) <ARembo@gmail.com> 2011
   5
   6    This file is part of the Doom2D:Rembo project.
   7
   8    Doom2D:Rembo is free software; you can redistribute it and/or modify
   9    it under the terms of the GNU General Public License version 2 as
  10    published by the Free Software Foundation.
  11
  12    Doom2D:Rembo is distributed in the hope that it will be useful,
  13    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15    GNU General Public License for more details.
  16
  17    You should have received a copy of the GNU General Public License
  18    along with this program; if not, see <http://www.gnu.org/licenses/> or
  19    write to the Free Software Foundation, Inc.,
  20    51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
  21 */
  22
  23 #ifdef __EMSCRIPTEN__
  24 #  include <emscripten.h>
  25 #endif
  26
  27 #include <SDL/SDL.h>
  28 #include <stdio.h>
  29 #include <stdarg.h>
  30 #include <stdlib.h> // srand exit
  31 #include <string.h> // strcasecmp
  32 #include <ctype.h>
  33 #include <assert.h>
  34 #include "system.h"
  35 #include "input.h"
  36
  37 #include "my.h" // fexists
  38 #include "player.h" // pl1 pl2
  39 #include "menu.h" // G_keyf
  40 #include "error.h" // logo
  41
  42 #include "files.h" // F_startup F_addwad F_initwads F_allocres
  43 #include "config.h" // CFG_args CFG_load CFG_save
  44 #include "memory.h" // M_startup
  45 #include "game.h" // G_init G_act
  46 #include "sound.h" // S_init S_done
  47 #include "music.h" // S_initmusic S_updatemusic S_donemusic
  48 #include "render.h" // R_init R_draw R_done
  49
  50 #define MODE_NONE 0
  51 #define MODE_OPENGL 1
  52 #define MODE_SOFTWARE 2
  53
  54 static Uint32 ticks;
  55 static int quit = 0;
  56 static SDL_Surface *surf = NULL;
  57 static int mode = MODE_NONE;
  58 static int text_input;
  59 static videomode_t vlist;
  60
  61 /* --- error.h --- */
  62
  63 void logo (const char *s, ...) {
  64   va_list ap;
  65   va_start(ap, s);
  66   vprintf(s, ap);
  67   va_end(ap);
  68   fflush(stdout);
  69 }
  70
  71 void logo_gas (int cur, int all) {
  72   // stub
  73 }
  74
  75 void ERR_failinit (char *s, ...) {
  76   va_list ap;
  77   va_start(ap, s);
  78   vprintf(s, ap);
  79   va_end(ap);
  80   puts("");
  81   exit(1);
  82 }
  83
  84 void ERR_fatal (char *s, ...) {
  85   va_list ap;
  86   R_done();
  87   S_done();
  88   S_donemusic();
  89   M_shutdown();
  90   SDL_Quit();
  91   puts("\nКРИТИЧЕСКАЯ ОШИБКА:");
  92   va_start(ap, s);
  93   vprintf(s, ap);
  94   va_end(ap);
  95   puts("");
  96   exit(1);
  97 }
  98
  99 void ERR_quit (void) {
 100   quit = 1;
 101 }
 102
 103 /* --- system.h --- */
 104
 105 int Y_set_videomode_opengl (int w, int h, int fullscreen) {
 106   assert(w > 0);
 107   assert(h > 0);
 108   Uint32 flags;
 109   SDL_Surface *s;
 110   if (mode == MODE_OPENGL && surf->w == w && surf->h == h && Y_get_fullscreen() == fullscreen) {
 111     s = surf;
 112   } else {
 113     flags = SDL_DOUBLEBUF | SDL_OPENGL;
 114     if (fullscreen) {
 115       flags = flags | SDL_FULLSCREEN;
 116     }
 117 #   ifdef WIN32
 118       flags = flags | SDL_RESIZABLE;
 119 #   endif
 120     s = SDL_SetVideoMode(w, h, 0, flags);
 121     if (s != NULL) {
 122       mode = MODE_OPENGL;
 123       surf = s;
 124     } else {
 125       logo("Y_set_videomode_opengl: error: %s\n", SDL_GetError());
 126     }
 127   }
 128   return s != NULL;
 129 }
 130
 131 int Y_set_videomode_software (int w, int h, int fullscreen) {
 132   assert(w > 0);
 133   assert(h > 0);
 134   Uint32 flags;
 135   SDL_Surface *s;
 136   if (mode == MODE_OPENGL && surf->w == w && surf->h == h && Y_get_fullscreen() == fullscreen) {
 137     s = surf;
 138   } else {
 139     flags = SDL_DOUBLEBUF | SDL_SWSURFACE | SDL_HWPALETTE;
 140     if (fullscreen) {
 141       flags = flags | SDL_FULLSCREEN;
 142     }
 143 #   ifdef WIN32
 144       flags = flags | SDL_RESIZABLE;
 145 #   endif
 146     s = SDL_SetVideoMode(w, h, 8, flags);
 147     if (s != NULL) {
 148       mode = MODE_SOFTWARE;
 149       surf = s;
 150     }
 151   }
 152   return s != NULL;
 153 }
 154
 155 static void init_videomode_list (Uint32 flags) {
 156   int i, n;
 157   SDL_Rect **r;
 158   if (vlist.modes != NULL) {
 159     free(vlist.modes);
 160     vlist.modes = NULL;
 161     vlist.n = 0;
 162   }
 163   r = SDL_ListModes(NULL, flags);
 164   if (r == (SDL_Rect **)-1) {
 165     if ((flags & SDL_FULLSCREEN) == 0) {
 166       init_videomode_list(flags | SDL_FULLSCREEN);
 167     }
 168   } else if (r != (SDL_Rect**)0) {
 169     n = 0;
 170     while (r[n] != NULL) {
 171       n++;
 172     }
 173     vlist.modes = malloc(n * sizeof(videomode_size_t));
 174     if (vlist.modes != NULL) {
 175       vlist.n = n;
 176       for (i = 0; i < n; i++) {
 177         vlist.modes[i] = (videomode_size_t) {
 178           .w = r[i]->w,
 179           .h = r[i]->h
 180         };
 181       }
 182     }
 183   }
 184 }
 185
 186 const videomode_t *Y_get_videomode_list_opengl (int fullscreen) {
 187   init_videomode_list(SDL_OPENGL | (fullscreen ? SDL_FULLSCREEN : 0));
 188   return &vlist;
 189 }
 190
 191 const videomode_t *Y_get_videomode_list_software (int fullscreen) {
 192   init_videomode_list(SDL_SWSURFACE | SDL_HWPALETTE | (fullscreen ? SDL_FULLSCREEN : 0));
 193   return &vlist;
 194 }
 195
 196 void Y_get_videomode (int *w, int *h) {
 197   if (mode != MODE_NONE) {
 198     *w = surf->w;
 199     *h = surf->h;
 200   } else {
 201     *w = 0;
 202     *h = 0;
 203   }
 204 }
 205
 206 int Y_videomode_setted (void) {
 207   return mode != MODE_NONE;
 208 }
 209
 210 void Y_unset_videomode (void) {
 211   surf = NULL;
 212   mode = MODE_NONE;
 213 #ifndef __EMSCRIPTEN__
 214   SDL_QuitSubSystem(SDL_INIT_VIDEO);
 215   SDL_InitSubSystem(SDL_INIT_VIDEO);
 216 #endif
 217 }
 218
 219 void Y_set_fullscreen (int fullscreen) {
 220   int fs = Y_get_fullscreen();
 221   if (mode != MODE_NONE && fs != fullscreen) {
 222     if (SDL_WM_ToggleFullScreen(surf) == 0) {
 223       switch (mode) {
 224         case MODE_OPENGL:
 225           Y_set_videomode_opengl(surf->w, surf->h, fullscreen);
 226           break;
 227         case MODE_SOFTWARE:
 228           Y_set_videomode_software(surf->w, surf->h, fullscreen);
 229           break;
 230       }
 231     }
 232   }
 233 }
 234
 235 int Y_get_fullscreen (void) {
 236   return (mode != MODE_NONE) && ((surf->flags & SDL_FULLSCREEN) != 0);
 237 }
 238
 239 void Y_swap_buffers (void) {
 240   assert(mode == MODE_OPENGL);
 241   SDL_GL_SwapBuffers();
 242 }
 243
 244 void Y_get_buffer (byte **buf, int *w, int *h, int *pitch) {
 245   assert(mode == MODE_SOFTWARE);
 246   *buf = surf->pixels;
 247   *w = surf->w;
 248   *h = surf->h;
 249   *pitch = surf->pitch;
 250 }
 251
 252 void Y_set_vga_palette (byte *vgapal) {
 253   int i;
 254   byte *p = vgapal;
 255   assert(vgapal != NULL);
 256   assert(mode == MODE_SOFTWARE);
 257   SDL_Color colors[256];
 258   for (i = 0; i < 256; i++) {
 259     colors[i] = (SDL_Color) {
 260       .r = p[0] * 255 / 63,
 261       .g = p[1] * 255 / 63,
 262       .b = p[2] * 255 / 63
 263     };
 264     p += 3;
 265   }
 266   SDL_SetColors(surf, colors, 0, 256);
 267 }
 268
 269 void Y_repaint_rect (int x, int y, int w, int h) {
 270   assert(mode == MODE_SOFTWARE);
 271   SDL_UpdateRect(surf, x, y, w, h);
 272 }
 273
 274 void Y_repaint (void) {
 275   assert(mode == MODE_SOFTWARE);
 276   SDL_Flip(surf);
 277 }
 278
 279 void Y_enable_text_input (void) {
 280   text_input = 1;
 281 }
 282
 283 void Y_disable_text_input (void) {
 284   text_input = 0;
 285 }
 286
 287 /* --- main --- */
 288
 289 static int sdl_to_key (int code) {
 290   switch (code) {
 291     case SDLK_0: return KEY_0;
 292     case SDLK_1: return KEY_1;
 293     case SDLK_2: return KEY_2;
 294     case SDLK_3: return KEY_3;
 295     case SDLK_4: return KEY_4;
 296     case SDLK_5: return KEY_5;
 297     case SDLK_6: return KEY_6;
 298     case SDLK_7: return KEY_7;
 299     case SDLK_8: return KEY_8;
 300     case SDLK_9: return KEY_9;
 301     case SDLK_a: return KEY_A;
 302     case SDLK_b: return KEY_B;
 303     case SDLK_c: return KEY_C;
 304     case SDLK_d: return KEY_D;
 305     case SDLK_e: return KEY_E;
 306     case SDLK_f: return KEY_F;
 307     case SDLK_g: return KEY_G;
 308     case SDLK_h: return KEY_H;
 309     case SDLK_i: return KEY_I;
 310     case SDLK_j: return KEY_J;
 311     case SDLK_k: return KEY_K;
 312     case SDLK_l: return KEY_L;
 313     case SDLK_m: return KEY_M;
 314     case SDLK_n: return KEY_N;
 315     case SDLK_o: return KEY_O;
 316     case SDLK_p: return KEY_P;
 317     case SDLK_q: return KEY_Q;
 318     case SDLK_r: return KEY_R;
 319     case SDLK_s: return KEY_S;
 320     case SDLK_t: return KEY_T;
 321     case SDLK_u: return KEY_U;
 322     case SDLK_v: return KEY_V;
 323     case SDLK_w: return KEY_W;
 324     case SDLK_x: return KEY_X;
 325     case SDLK_y: return KEY_Y;
 326     case SDLK_z: return KEY_Z;
 327     case SDLK_RETURN: return KEY_RETURN;
 328     case SDLK_ESCAPE: return KEY_ESCAPE;
 329     case SDLK_BACKSPACE: return KEY_BACKSPACE;
 330     case SDLK_TAB: return KEY_TAB;
 331     case SDLK_SPACE: return KEY_SPACE;
 332     case SDLK_MINUS: return KEY_MINUS;
 333     case SDLK_EQUALS: return KEY_EQUALS;
 334     case SDLK_LEFTBRACKET: return KEY_LEFTBRACKET;
 335     case SDLK_RIGHTBRACKET: return KEY_RIGHTBRACKET;
 336     case SDLK_BACKSLASH: return KEY_BACKSLASH;
 337     case SDLK_SEMICOLON: return KEY_SEMICOLON;
 338     case SDLK_QUOTE: return KEY_APOSTROPHE;
 339     case SDLK_BACKQUOTE: return KEY_GRAVE;
 340     case SDLK_COMMA: return KEY_COMMA;
 341     case SDLK_PERIOD: return KEY_PERIOD;
 342     case SDLK_SLASH: return KEY_SLASH;
 343     case SDLK_CAPSLOCK: return KEY_CAPSLOCK;
 344     case SDLK_F1: return KEY_F1;
 345     case SDLK_F2: return KEY_F2;
 346     case SDLK_F3: return KEY_F3;
 347     case SDLK_F4: return KEY_F4;
 348     case SDLK_F5: return KEY_F5;
 349     case SDLK_F6: return KEY_F6;
 350     case SDLK_F7: return KEY_F7;
 351     case SDLK_F8: return KEY_F8;
 352     case SDLK_F9: return KEY_F9;
 353     case SDLK_F10: return KEY_F10;
 354     case SDLK_F11: return KEY_F11;
 355     case SDLK_F12: return KEY_F12;
 356     case SDLK_PRINT: return KEY_PRINTSCREEN;
 357     case SDLK_SCROLLOCK: return KEY_SCROLLLOCK;
 358     case SDLK_PAUSE: return KEY_PAUSE;
 359     case SDLK_INSERT: return KEY_INSERT;
 360     case SDLK_HOME: return KEY_HOME;
 361     case SDLK_PAGEUP: return KEY_PAGEUP;
 362     case SDLK_DELETE: return KEY_DELETE;
 363     case SDLK_END: return KEY_END;
 364     case SDLK_PAGEDOWN: return KEY_PAGEDOWN;
 365     case SDLK_RIGHT: return KEY_RIGHT;
 366     case SDLK_LEFT: return KEY_LEFT;
 367     case SDLK_DOWN: return KEY_DOWN;
 368     case SDLK_UP: return KEY_UP;
 369     case SDLK_NUMLOCK: return KEY_NUMLOCK;
 370     case SDLK_KP_DIVIDE: return KEY_KP_DIVIDE;
 371     case SDLK_KP_MULTIPLY: return KEY_KP_MULTIPLY;
 372     case SDLK_KP_MINUS: return KEY_KP_MINUS;
 373     case SDLK_KP_PLUS: return KEY_KP_PLUS;
 374     case SDLK_KP_ENTER: return KEY_KP_ENTER;
 375     case SDLK_KP0: return KEY_KP_0;
 376     case SDLK_KP1: return KEY_KP_1;
 377     case SDLK_KP2: return KEY_KP_2;
 378     case SDLK_KP3: return KEY_KP_3;
 379     case SDLK_KP4: return KEY_KP_4;
 380     case SDLK_KP5: return KEY_KP_5;
 381     case SDLK_KP6: return KEY_KP_6;
 382     case SDLK_KP7: return KEY_KP_7;
 383     case SDLK_KP8: return KEY_KP_8;
 384     case SDLK_KP9: return KEY_KP_9;
 385     case SDLK_KP_PERIOD: return KEY_KP_PERIOD;
 386     case SDLK_SYSREQ: return KEY_SYSREQ;
 387     case SDLK_LCTRL: return KEY_LCTRL;
 388     case SDLK_LSHIFT: return KEY_LSHIFT;
 389     case SDLK_LALT: return KEY_LALT;
 390     case SDLK_LSUPER: return KEY_LSUPER;
 391     case SDLK_RCTRL: return KEY_RCTRL;
 392     case SDLK_RSHIFT: return KEY_RSHIFT;
 393     case SDLK_RALT: return KEY_RALT;
 394     case SDLK_RSUPER: return KEY_RSUPER;
 395     default: return KEY_UNKNOWN;
 396   }
 397 }
 398
 399 static void poll_events (void) {
 400   int key, sym, down;
 401   SDL_Event ev;
 402   while (SDL_PollEvent(&ev)) {
 403     switch (ev.type) {
 404       case SDL_QUIT:
 405         ERR_quit();
 406         break;
 407       case SDL_VIDEORESIZE:
 408         R_set_videomode(ev.resize.w, ev.resize.h, Y_get_fullscreen());
 409         break;
 410       case SDL_KEYDOWN:
 411       case SDL_KEYUP:
 412         sym = ev.key.keysym.sym;
 413         down = ev.type == SDL_KEYDOWN;
 414         key = sdl_to_key(sym);
 415         I_press(key, down);
 416         GM_key(key, down);
 417         if (down && text_input && sym >= 0x20 && sym <= 0x7e) {
 418           // TODO fix this
 419           GM_input(sym);
 420         }
 421         break;
 422     }
 423   }
 424 }
 425
 426 static void step (void) {
 427   poll_events();
 428   S_updatemusic();
 429   Uint32 t = SDL_GetTicks();
 430   if (t - ticks > DELAY) {
 431     ticks = t;
 432     G_act();
 433   }
 434   R_draw();
 435 }
 436
 437 int main (int argc, char *argv[]) {
 438   char *pw;
 439   logo("main: initialize SDL\n");
 440   if (SDL_Init(SDL_INIT_VIDEO | SDL_INIT_TIMER) == -1) {
 441     logo("main: failed to init SDL: %s\n", SDL_GetError());
 442     return 1;
 443   }
 444   SDL_WM_SetCaption("Doom 2D (SDL)", "Doom 2D");
 445   // Player 1 defaults
 446   pl1.ku = KEY_KP_8;
 447   pl1.kd = KEY_KP_5;
 448   pl1.kl = KEY_KP_4;
 449   pl1.kr = KEY_KP_6;
 450   pl1.kf = KEY_PAGEDOWN;
 451   pl1.kj = KEY_DELETE;
 452   pl1.kwl = KEY_HOME;
 453   pl1.kwr = KEY_END;
 454   pl1.kp = KEY_KP_8;
 455   // Player 2 defaults
 456   pl2.ku = KEY_E;
 457   pl2.kd = KEY_D;
 458   pl2.kl = KEY_S;
 459   pl2.kr = KEY_F;
 460   pl2.kf = KEY_A;
 461   pl2.kj = KEY_Q;
 462   pl2.kwl = KEY_1;
 463   pl2.kwr = KEY_2;
 464   pl2.kp = KEY_E;
 465   srand(SDL_GetTicks());
 466   F_startup();
 467 #ifndef WIN32
 468   pw = "/usr/share/doom2d-rembo/doom2d.wad";
 469 #else
 470   pw = "doom2d.wad";
 471 #endif
 472   if (fexists(pw)) {
 473     F_addwad(pw);
 474   } else {
 475     F_addwad("doom2d.wad");
 476   }
 477   CFG_args(argc, argv);
 478   CFG_load();
 479   F_initwads();
 480   M_startup();
 481   F_allocres();
 482   S_init();
 483   S_initmusic();
 484   R_init();
 485   G_init();
 486   ticks = SDL_GetTicks();
 487 #ifdef __EMSCRIPTEN__
 488   emscripten_set_main_loop(step, 0, 1);
 489 #else
 490   while (!quit) {
 491     step();
 492   }
 493 #endif
 494   CFG_save();
 495   R_done();
 496   S_donemusic();
 497   S_done();
 498   M_shutdown();
 499   SDL_Quit();
 500   return 0;
 501 }