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 <assert.h>
  32 #include "system.h"
  33 #include "input.h"
  34
  35 #include "my.h" // fexists
  36 #include "player.h" // pl1 pl2
  37 #include "menu.h" // G_keyf
  38 #include "error.h" // logo
  39 #include "monster.h" // nomon
  40
  41 #include "files.h" // F_startup F_addwad F_initwads F_allocres
  42 #include "config.h" // CFG_args CFG_load CFG_save
  43 #include "args.h" // ARG_parse
  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 static const cfg_t arg[] = {
  62   {"file", NULL, Y_FILES},
  63   {"cheat", &cheat, Y_SW_ON},
  64 //  {"vga", &shot_vga, Y_SW_ON},
  65   {"sndvol", &snd_vol, Y_WORD},
  66   {"musvol", &mus_vol, Y_WORD},
  67   {"mon", &nomon, Y_SW_OFF},
  68   {"warp", &_warp, Y_BYTE},
  69 //  {"config", NULL, cfg_file, Y_STRING},
  70   {NULL, NULL, 0} // end
  71 };
  72
  73 static const cfg_t cfg[] = {
  74 //  {"screenshot", &shot_vga, Y_SW_ON},
  75   {"sound_volume", &snd_vol, Y_WORD},
  76   {"music_volume", &mus_vol, Y_WORD},
  77   {"music_random", &music_random, Y_SW_ON},
  78   {"music_time", &music_time, Y_DWORD},
  79   {"music_fade", &music_fade, Y_DWORD},
  80   {"pl1_left", &pl1.kl, Y_KEY},
  81   {"pl1_right",&pl1.kr, Y_KEY},
  82   {"pl1_up", &pl1.ku, Y_KEY},
  83   {"pl1_down", &pl1.kd, Y_KEY},
  84   {"pl1_jump", &pl1.kj, Y_KEY},
  85   {"pl1_fire", &pl1.kf, Y_KEY},
  86   {"pl1_next", &pl1.kwr, Y_KEY},
  87   {"pl1_prev", &pl1.kwl, Y_KEY},
  88   {"pl1_use", &pl1.kp, Y_KEY},
  89   {"pl2_left", &pl2.kl, Y_KEY},
  90   {"pl2_right", &pl2.kr, Y_KEY},
  91   {"pl2_up", &pl2.ku, Y_KEY},
  92   {"pl2_down", &pl2.kd, Y_KEY},
  93   {"pl2_jump", &pl2.kj, Y_KEY},
  94   {"pl2_fire", &pl2.kf, Y_KEY},
  95   {"pl2_next", &pl2.kwr, Y_KEY},
  96   {"pl2_prev", &pl2.kwl, Y_KEY},
  97   {"pl2_use", &pl2.kp, Y_KEY},
  98   {NULL, NULL, 0} // end
  99 };
 100
 101 static void CFG_args (int argc, char **argv) {
 102   const cfg_t *list[] = { arg, R_args() };
 103   ARG_parse(argc, argv, 2, list);
 104 }
 105
 106 static void CFG_load (void) {
 107   const cfg_t *list[] = { cfg, R_conf() };
 108   CFG_read_config("default.cfg", 2, list);
 109   CFG_read_config("doom2d.cfg", 2, list);
 110 }
 111
 112 static void CFG_save (void) {
 113   const cfg_t *list[] = { cfg, R_conf() };
 114   CFG_update_config("doom2d.cfg", "doom2d.cfg", 2, list, "generated by doom2d, do not modify");
 115 }
 116
 117 /* --- error.h --- */
 118
 119 void logo (const char *s, ...) {
 120   va_list ap;
 121   va_start(ap, s);
 122   vprintf(s, ap);
 123   va_end(ap);
 124   fflush(stdout);
 125 }
 126
 127 void logo_gas (int cur, int all) {
 128   // stub
 129 }
 130
 131 void ERR_failinit (char *s, ...) {
 132   va_list ap;
 133   va_start(ap, s);
 134   vprintf(s, ap);
 135   va_end(ap);
 136   puts("");
 137   exit(1);
 138 }
 139
 140 void ERR_fatal (char *s, ...) {
 141   va_list ap;
 142   R_done();
 143   S_done();
 144   S_donemusic();
 145   M_shutdown();
 146   SDL_Quit();
 147   puts("\nКРИТИЧЕСКАЯ ОШИБКА:");
 148   va_start(ap, s);
 149   vprintf(s, ap);
 150   va_end(ap);
 151   puts("");
 152   exit(1);
 153 }
 154
 155 void ERR_quit (void) {
 156   quit = 1;
 157 }
 158
 159 /* --- system.h --- */
 160
 161 int Y_set_videomode_opengl (int w, int h, int fullscreen) {
 162   assert(w > 0);
 163   assert(h > 0);
 164   Uint32 flags;
 165   SDL_Surface *s;
 166   if (mode == MODE_OPENGL && surf->w == w && surf->h == h && Y_get_fullscreen() == fullscreen) {
 167     s = surf;
 168   } else {
 169     flags = SDL_DOUBLEBUF | SDL_OPENGL;
 170     if (fullscreen) {
 171       flags = flags | SDL_FULLSCREEN;
 172     }
 173 #   ifdef WIN32
 174       flags = flags | SDL_RESIZABLE;
 175 #   endif
 176     s = SDL_SetVideoMode(w, h, 0, flags);
 177     if (s != NULL) {
 178       mode = MODE_OPENGL;
 179       surf = s;
 180     } else {
 181       logo("Y_set_videomode_opengl: error: %s\n", SDL_GetError());
 182     }
 183   }
 184   return s != NULL;
 185 }
 186
 187 int Y_set_videomode_software (int w, int h, int fullscreen) {
 188   assert(w > 0);
 189   assert(h > 0);
 190   Uint32 flags;
 191   SDL_Surface *s;
 192   if (mode == MODE_OPENGL && surf->w == w && surf->h == h && Y_get_fullscreen() == fullscreen) {
 193     s = surf;
 194   } else {
 195     flags = SDL_DOUBLEBUF | SDL_SWSURFACE | SDL_HWPALETTE;
 196     if (fullscreen) {
 197       flags = flags | SDL_FULLSCREEN;
 198     }
 199 #   ifdef WIN32
 200       flags = flags | SDL_RESIZABLE;
 201 #   endif
 202     s = SDL_SetVideoMode(w, h, 8, flags);
 203     if (s != NULL) {
 204       mode = MODE_SOFTWARE;
 205       surf = s;
 206     }
 207   }
 208   return s != NULL;
 209 }
 210
 211 static void init_videomode_list (Uint32 flags) {
 212   int i, n;
 213   SDL_Rect **r;
 214   if (vlist.modes != NULL) {
 215     free(vlist.modes);
 216     vlist.modes = NULL;
 217     vlist.n = 0;
 218   }
 219   r = SDL_ListModes(NULL, flags);
 220   if (r == (SDL_Rect **)-1) {
 221     if ((flags & SDL_FULLSCREEN) == 0) {
 222       init_videomode_list(flags | SDL_FULLSCREEN);
 223     }
 224   } else if (r != (SDL_Rect**)0) {
 225     n = 0;
 226     while (r[n] != NULL) {
 227       n++;
 228     }
 229     vlist.modes = malloc(n * sizeof(videomode_size_t));
 230     if (vlist.modes != NULL) {
 231       vlist.n = n;
 232       for (i = 0; i < n; i++) {
 233         vlist.modes[i] = (videomode_size_t) {
 234           .w = r[i]->w,
 235           .h = r[i]->h
 236         };
 237       }
 238     }
 239   }
 240 }
 241
 242 const videomode_t *Y_get_videomode_list_opengl (int fullscreen) {
 243   init_videomode_list(SDL_OPENGL | (fullscreen ? SDL_FULLSCREEN : 0));
 244   return &vlist;
 245 }
 246
 247 const videomode_t *Y_get_videomode_list_software (int fullscreen) {
 248   init_videomode_list(SDL_SWSURFACE | SDL_HWPALETTE | (fullscreen ? SDL_FULLSCREEN : 0));
 249   return &vlist;
 250 }
 251
 252 void Y_get_videomode (int *w, int *h) {
 253   if (mode != MODE_NONE) {
 254     *w = surf->w;
 255     *h = surf->h;
 256   } else {
 257     *w = 0;
 258     *h = 0;
 259   }
 260 }
 261
 262 int Y_videomode_setted (void) {
 263   return mode != MODE_NONE;
 264 }
 265
 266 void Y_unset_videomode (void) {
 267   surf = NULL;
 268   mode = MODE_NONE;
 269 #ifndef __EMSCRIPTEN__
 270   SDL_QuitSubSystem(SDL_INIT_VIDEO);
 271   SDL_InitSubSystem(SDL_INIT_VIDEO);
 272 #endif
 273 }
 274
 275 void Y_set_fullscreen (int fullscreen) {
 276   int fs = Y_get_fullscreen();
 277   if (mode != MODE_NONE && fs != fullscreen) {
 278     if (SDL_WM_ToggleFullScreen(surf) == 0) {
 279       switch (mode) {
 280         case MODE_OPENGL:
 281           Y_set_videomode_opengl(surf->w, surf->h, fullscreen);
 282           break;
 283         case MODE_SOFTWARE:
 284           Y_set_videomode_software(surf->w, surf->h, fullscreen);
 285           break;
 286       }
 287     }
 288   }
 289 }
 290
 291 int Y_get_fullscreen (void) {
 292   return (mode != MODE_NONE) && ((surf->flags & SDL_FULLSCREEN) != 0);
 293 }
 294
 295 void Y_swap_buffers (void) {
 296   assert(mode == MODE_OPENGL);
 297   SDL_GL_SwapBuffers();
 298 }
 299
 300 void Y_get_buffer (byte **buf, int *w, int *h, int *pitch) {
 301   assert(mode == MODE_SOFTWARE);
 302   *buf = surf->pixels;
 303   *w = surf->w;
 304   *h = surf->h;
 305   *pitch = surf->pitch;
 306 }
 307
 308 void Y_set_vga_palette (byte *vgapal) {
 309   int i;
 310   byte *p = vgapal;
 311   assert(vgapal != NULL);
 312   assert(mode == MODE_SOFTWARE);
 313   SDL_Color colors[256];
 314   for (i = 0; i < 256; i++) {
 315     colors[i] = (SDL_Color) {
 316       .r = p[0] * 255 / 63,
 317       .g = p[1] * 255 / 63,
 318       .b = p[2] * 255 / 63
 319     };
 320     p += 3;
 321   }
 322   SDL_SetColors(surf, colors, 0, 256);
 323 }
 324
 325 void Y_repaint_rect (int x, int y, int w, int h) {
 326   assert(mode == MODE_SOFTWARE);
 327   SDL_UpdateRect(surf, x, y, w, h);
 328 }
 329
 330 void Y_repaint (void) {
 331   assert(mode == MODE_SOFTWARE);
 332   SDL_Flip(surf);
 333 }
 334
 335 void Y_enable_text_input (void) {
 336   text_input = 1;
 337 }
 338
 339 void Y_disable_text_input (void) {
 340   text_input = 0;
 341 }
 342
 343 /* --- main --- */
 344
 345 static int sdl_to_key (int code) {
 346   switch (code) {
 347     case SDLK_0: return KEY_0;
 348     case SDLK_1: return KEY_1;
 349     case SDLK_2: return KEY_2;
 350     case SDLK_3: return KEY_3;
 351     case SDLK_4: return KEY_4;
 352     case SDLK_5: return KEY_5;
 353     case SDLK_6: return KEY_6;
 354     case SDLK_7: return KEY_7;
 355     case SDLK_8: return KEY_8;
 356     case SDLK_9: return KEY_9;
 357     case SDLK_a: return KEY_A;
 358     case SDLK_b: return KEY_B;
 359     case SDLK_c: return KEY_C;
 360     case SDLK_d: return KEY_D;
 361     case SDLK_e: return KEY_E;
 362     case SDLK_f: return KEY_F;
 363     case SDLK_g: return KEY_G;
 364     case SDLK_h: return KEY_H;
 365     case SDLK_i: return KEY_I;
 366     case SDLK_j: return KEY_J;
 367     case SDLK_k: return KEY_K;
 368     case SDLK_l: return KEY_L;
 369     case SDLK_m: return KEY_M;
 370     case SDLK_n: return KEY_N;
 371     case SDLK_o: return KEY_O;
 372     case SDLK_p: return KEY_P;
 373     case SDLK_q: return KEY_Q;
 374     case SDLK_r: return KEY_R;
 375     case SDLK_s: return KEY_S;
 376     case SDLK_t: return KEY_T;
 377     case SDLK_u: return KEY_U;
 378     case SDLK_v: return KEY_V;
 379     case SDLK_w: return KEY_W;
 380     case SDLK_x: return KEY_X;
 381     case SDLK_y: return KEY_Y;
 382     case SDLK_z: return KEY_Z;
 383     case SDLK_RETURN: return KEY_RETURN;
 384     case SDLK_ESCAPE: return KEY_ESCAPE;
 385     case SDLK_BACKSPACE: return KEY_BACKSPACE;
 386     case SDLK_TAB: return KEY_TAB;
 387     case SDLK_SPACE: return KEY_SPACE;
 388     case SDLK_MINUS: return KEY_MINUS;
 389     case SDLK_EQUALS: return KEY_EQUALS;
 390     case SDLK_LEFTBRACKET: return KEY_LEFTBRACKET;
 391     case SDLK_RIGHTBRACKET: return KEY_RIGHTBRACKET;
 392     case SDLK_BACKSLASH: return KEY_BACKSLASH;
 393     case SDLK_SEMICOLON: return KEY_SEMICOLON;
 394     case SDLK_QUOTE: return KEY_APOSTROPHE;
 395     case SDLK_BACKQUOTE: return KEY_GRAVE;
 396     case SDLK_COMMA: return KEY_COMMA;
 397     case SDLK_PERIOD: return KEY_PERIOD;
 398     case SDLK_SLASH: return KEY_SLASH;
 399     case SDLK_CAPSLOCK: return KEY_CAPSLOCK;
 400     case SDLK_F1: return KEY_F1;
 401     case SDLK_F2: return KEY_F2;
 402     case SDLK_F3: return KEY_F3;
 403     case SDLK_F4: return KEY_F4;
 404     case SDLK_F5: return KEY_F5;
 405     case SDLK_F6: return KEY_F6;
 406     case SDLK_F7: return KEY_F7;
 407     case SDLK_F8: return KEY_F8;
 408     case SDLK_F9: return KEY_F9;
 409     case SDLK_F10: return KEY_F10;
 410     case SDLK_F11: return KEY_F11;
 411     case SDLK_F12: return KEY_F12;
 412     case SDLK_PRINT: return KEY_PRINTSCREEN;
 413     case SDLK_SCROLLOCK: return KEY_SCROLLLOCK;
 414     case SDLK_PAUSE: return KEY_PAUSE;
 415     case SDLK_INSERT: return KEY_INSERT;
 416     case SDLK_HOME: return KEY_HOME;
 417     case SDLK_PAGEUP: return KEY_PAGEUP;
 418     case SDLK_DELETE: return KEY_DELETE;
 419     case SDLK_END: return KEY_END;
 420     case SDLK_PAGEDOWN: return KEY_PAGEDOWN;
 421     case SDLK_RIGHT: return KEY_RIGHT;
 422     case SDLK_LEFT: return KEY_LEFT;
 423     case SDLK_DOWN: return KEY_DOWN;
 424     case SDLK_UP: return KEY_UP;
 425     case SDLK_NUMLOCK: return KEY_NUMLOCK;
 426     case SDLK_KP_DIVIDE: return KEY_KP_DIVIDE;
 427     case SDLK_KP_MULTIPLY: return KEY_KP_MULTIPLY;
 428     case SDLK_KP_MINUS: return KEY_KP_MINUS;
 429     case SDLK_KP_PLUS: return KEY_KP_PLUS;
 430     case SDLK_KP_ENTER: return KEY_KP_ENTER;
 431     case SDLK_KP0: return KEY_KP_0;
 432     case SDLK_KP1: return KEY_KP_1;
 433     case SDLK_KP2: return KEY_KP_2;
 434     case SDLK_KP3: return KEY_KP_3;
 435     case SDLK_KP4: return KEY_KP_4;
 436     case SDLK_KP5: return KEY_KP_5;
 437     case SDLK_KP6: return KEY_KP_6;
 438     case SDLK_KP7: return KEY_KP_7;
 439     case SDLK_KP8: return KEY_KP_8;
 440     case SDLK_KP9: return KEY_KP_9;
 441     case SDLK_KP_PERIOD: return KEY_KP_PERIOD;
 442     case SDLK_SYSREQ: return KEY_SYSREQ;
 443     case SDLK_LCTRL: return KEY_LCTRL;
 444     case SDLK_LSHIFT: return KEY_LSHIFT;
 445     case SDLK_LALT: return KEY_LALT;
 446     case SDLK_LSUPER: return KEY_LSUPER;
 447     case SDLK_RCTRL: return KEY_RCTRL;
 448     case SDLK_RSHIFT: return KEY_RSHIFT;
 449     case SDLK_RALT: return KEY_RALT;
 450     case SDLK_RSUPER: return KEY_RSUPER;
 451     default: return KEY_UNKNOWN;
 452   }
 453 }
 454
 455 static void poll_events (void) {
 456   int key, sym, down;
 457   SDL_Event ev;
 458   while (SDL_PollEvent(&ev)) {
 459     switch (ev.type) {
 460       case SDL_QUIT:
 461         ERR_quit();
 462         break;
 463       case SDL_VIDEORESIZE:
 464         R_set_videomode(ev.resize.w, ev.resize.h, Y_get_fullscreen());
 465         break;
 466       case SDL_KEYDOWN:
 467       case SDL_KEYUP:
 468         sym = ev.key.keysym.sym;
 469         down = ev.type == SDL_KEYDOWN;
 470         key = sdl_to_key(sym);
 471         I_press(key, down);
 472         GM_key(key, down);
 473         if (down && text_input && sym >= 0x20 && sym <= 0x7e) {
 474           // TODO fix this
 475           GM_input(sym);
 476         }
 477         break;
 478     }
 479   }
 480 }
 481
 482 static void step (void) {
 483   poll_events();
 484   S_updatemusic();
 485   Uint32 t = SDL_GetTicks();
 486   if (t - ticks > DELAY) {
 487     ticks = t;
 488     G_act();
 489   }
 490   R_draw();
 491 }
 492
 493 int main (int argc, char *argv[]) {
 494   char *pw;
 495   logo("main: initialize SDL\n");
 496   if (SDL_Init(SDL_INIT_VIDEO | SDL_INIT_TIMER) == -1) {
 497     logo("main: failed to init SDL: %s\n", SDL_GetError());
 498     return 1;
 499   }
 500   SDL_WM_SetCaption("Doom 2D (SDL)", "Doom 2D");
 501   // Player 1 defaults
 502   pl1.ku = KEY_KP_8;
 503   pl1.kd = KEY_KP_5;
 504   pl1.kl = KEY_KP_4;
 505   pl1.kr = KEY_KP_6;
 506   pl1.kf = KEY_PAGEDOWN;
 507   pl1.kj = KEY_DELETE;
 508   pl1.kwl = KEY_HOME;
 509   pl1.kwr = KEY_END;
 510   pl1.kp = KEY_KP_8;
 511   // Player 2 defaults
 512   pl2.ku = KEY_E;
 513   pl2.kd = KEY_D;
 514   pl2.kl = KEY_S;
 515   pl2.kr = KEY_F;
 516   pl2.kf = KEY_A;
 517   pl2.kj = KEY_Q;
 518   pl2.kwl = KEY_1;
 519   pl2.kwr = KEY_2;
 520   pl2.kp = KEY_E;
 521   srand(SDL_GetTicks());
 522   F_startup();
 523 #ifndef WIN32
 524   pw = "/usr/share/doom2d-rembo/doom2d.wad";
 525 #else
 526   pw = "doom2d.wad";
 527 #endif
 528   if (fexists(pw)) {
 529     F_addwad(pw);
 530   } else {
 531     F_addwad("doom2d.wad");
 532   }
 533   CFG_args(argc, argv);
 534   CFG_load();
 535   F_initwads();
 536   M_startup();
 537   F_allocres();
 538   S_init();
 539   S_initmusic();
 540   R_init();
 541   G_init();
 542   ticks = SDL_GetTicks();
 543 #ifdef __EMSCRIPTEN__
 544   emscripten_set_main_loop(step, 0, 1);
 545 #else
 546   while (!quit) {
 547     step();
 548   }
 549 #endif
 550   CFG_save();
 551   R_done();
 552   S_donemusic();
 553   S_done();
 554   M_shutdown();
 555   SDL_Quit();
 556   return 0;
 557 }