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 #include "SDL.h"
  24 #include <stdio.h>
  25 #include <stdarg.h>
  26 #include <stdlib.h> // srand exit
  27 #include <string.h> // strcasecmp
  28 #include <assert.h>
  29 #include "system.h"
  30 #include "input.h"
  31
  32 #include "my.h" // fexists
  33 #include "player.h" // pl1 pl2
  34 #include "menu.h" // G_keyf
  35 #include "error.h" // logo
  36
  37 #include "files.h" // F_startup F_addwad F_initwads F_allocres
  38 #include "config.h" // CFG_args CFG_load CFG_save
  39 #include "memory.h" // M_startup
  40 #include "game.h" // G_init G_act
  41 #include "sound.h" // S_init S_done
  42 #include "music.h" // S_initmusic S_updatemusic S_donemusic
  43 #include "render.h" // R_init R_draw R_done
  44
  45 #define MODE_NONE 0
  46 #define MODE_OPENGL 1
  47 #define MODE_SOFTWARE 2
  48
  49 static int quit = 0;
  50 static SDL_Surface *surf = NULL;
  51 static int mode = MODE_NONE;
  52
  53 /* --- error.h --- */
  54
  55 void logo (const char *s, ...) {
  56   va_list ap;
  57   va_start(ap, s);
  58   vprintf(s, ap);
  59   va_end(ap);
  60   fflush(stdout);
  61 }
  62
  63 void logo_gas (int cur, int all) {
  64   // stub
  65 }
  66
  67 void ERR_failinit (char *s, ...) {
  68   va_list ap;
  69   va_start(ap, s);
  70   vprintf(s, ap);
  71   va_end(ap);
  72   puts("");
  73   exit(1);
  74 }
  75
  76 void ERR_fatal (char *s, ...) {
  77   va_list ap;
  78   R_done();
  79   S_done();
  80   S_donemusic();
  81   M_shutdown();
  82   SDL_Quit();
  83   puts("\nКРИТИЧЕСКАЯ ОШИБКА:");
  84   va_start(ap, s);
  85   vprintf(s, ap);
  86   va_end(ap);
  87   puts("");
  88   exit(1);
  89 }
  90
  91 void ERR_quit (void) {
  92   quit = 1;
  93 }
  94
  95 /* --- system.h --- */
  96
  97 int Y_set_videomode_opengl (int w, int h, int fullscreen) {
  98   assert(w > 0);
  99   assert(h > 0);
 100   Uint32 flags;
 101   SDL_Surface *s;
 102   if (mode == MODE_OPENGL && surf->w == w && surf->h == h && Y_get_fullscreen() == fullscreen) {
 103     s = surf;
 104   } else {
 105     flags = SDL_DOUBLEBUF | SDL_OPENGL;
 106     if (fullscreen) {
 107       flags = flags | SDL_FULLSCREEN;
 108     }
 109 #   ifdef WIN32
 110       flags = flags | SDL_RESIZABLE;
 111 #   endif
 112     s = SDL_SetVideoMode(w, h, 0, flags);
 113     if (s != NULL) {
 114       mode = MODE_OPENGL;
 115       surf = s;
 116     }
 117   }
 118   return s != NULL;
 119 }
 120
 121 int Y_set_videomode_software (int w, int h, int fullscreen) {
 122   assert(w > 0);
 123   assert(h > 0);
 124   Uint32 flags;
 125   SDL_Surface *s;
 126   if (mode == MODE_OPENGL && surf->w == w && surf->h == h && Y_get_fullscreen() == fullscreen) {
 127     s = surf;
 128   } else {
 129     flags = SDL_DOUBLEBUF | SDL_SWSURFACE | SDL_HWPALETTE;
 130     if (fullscreen) {
 131       flags = flags | SDL_FULLSCREEN;
 132     }
 133 #   ifdef WIN32
 134       flags = flags | SDL_RESIZABLE;
 135 #   endif
 136     s = SDL_SetVideoMode(w, h, 8, flags);
 137     if (s != NULL) {
 138       mode = MODE_SOFTWARE;
 139       surf = s;
 140     }
 141   }
 142   return s != NULL;
 143 }
 144
 145 void Y_get_videomode (int *w, int *h) {
 146   if (mode != MODE_NONE) {
 147     *w = surf->w;
 148     *h = surf->h;
 149   } else {
 150     *w = 0;
 151     *h = 0;
 152   }
 153 }
 154
 155 int Y_videomode_setted (void) {
 156   return mode != MODE_NONE;
 157 }
 158
 159 void Y_unset_videomode (void) {
 160   surf = NULL;
 161   mode = MODE_NONE;
 162   SDL_QuitSubSystem(SDL_INIT_VIDEO);
 163   SDL_InitSubSystem(SDL_INIT_VIDEO);
 164 }
 165
 166 void Y_set_fullscreen (int fullscreen) {
 167   int fs = Y_get_fullscreen();
 168   if (mode != MODE_NONE && fs != fullscreen) {
 169     if (SDL_WM_ToggleFullScreen(surf) == 0) {
 170       switch (mode) {
 171         case MODE_OPENGL:
 172           Y_set_videomode_opengl(surf->w, surf->h, fullscreen);
 173           break;
 174         case MODE_SOFTWARE:
 175           Y_set_videomode_software(surf->w, surf->h, fullscreen);
 176           break;
 177       }
 178     }
 179   }
 180 }
 181
 182 int Y_get_fullscreen (void) {
 183   return (mode != MODE_NONE) && ((surf->flags & SDL_FULLSCREEN) != 0);
 184 }
 185
 186 void Y_swap_buffers (void) {
 187   assert(mode == MODE_OPENGL);
 188   SDL_GL_SwapBuffers();
 189 }
 190
 191 void Y_get_buffer (byte **buf, int *w, int *h, int *pitch) {
 192   assert(mode == MODE_SOFTWARE);
 193   *buf = surf->pixels;
 194   *w = surf->w;
 195   *h = surf->h;
 196   *pitch = surf->pitch;
 197 }
 198
 199 void Y_set_vga_palette (byte *vgapal) {
 200   int i;
 201   byte *p = vgapal;
 202   assert(vgapal != NULL);
 203   assert(mode == MODE_SOFTWARE);
 204   SDL_Color colors[256];
 205   for (i = 0; i < 256; i++) {
 206     colors[i] = (SDL_Color) {
 207       .r = p[0] * 255 / 63,
 208       .g = p[1] * 255 / 63,
 209       .b = p[2] * 255 / 63
 210     };
 211     p += 3;
 212   }
 213   SDL_SetColors(surf, colors, 0, 256);
 214 }
 215
 216 void Y_repaint_rect (int x, int y, int w, int h) {
 217   assert(mode == MODE_SOFTWARE);
 218   SDL_UpdateRect(surf, x, y, w, h);
 219 }
 220
 221 void Y_repaint (void) {
 222   assert(mode == MODE_SOFTWARE);
 223   SDL_Flip(surf);
 224 }
 225
 226 /* --- main --- */
 227
 228 static int sdl_to_key (int code) {
 229   switch (code) {
 230     case SDLK_0: return KEY_0;
 231     case SDLK_1: return KEY_1;
 232     case SDLK_2: return KEY_2;
 233     case SDLK_3: return KEY_3;
 234     case SDLK_4: return KEY_4;
 235     case SDLK_5: return KEY_5;
 236     case SDLK_6: return KEY_6;
 237     case SDLK_7: return KEY_7;
 238     case SDLK_8: return KEY_8;
 239     case SDLK_9: return KEY_9;
 240     case SDLK_a: return KEY_A;
 241     case SDLK_b: return KEY_B;
 242     case SDLK_c: return KEY_C;
 243     case SDLK_d: return KEY_D;
 244     case SDLK_e: return KEY_E;
 245     case SDLK_f: return KEY_F;
 246     case SDLK_g: return KEY_G;
 247     case SDLK_h: return KEY_H;
 248     case SDLK_i: return KEY_I;
 249     case SDLK_j: return KEY_J;
 250     case SDLK_k: return KEY_K;
 251     case SDLK_l: return KEY_L;
 252     case SDLK_m: return KEY_M;
 253     case SDLK_n: return KEY_N;
 254     case SDLK_o: return KEY_O;
 255     case SDLK_p: return KEY_P;
 256     case SDLK_q: return KEY_Q;
 257     case SDLK_r: return KEY_R;
 258     case SDLK_s: return KEY_S;
 259     case SDLK_t: return KEY_T;
 260     case SDLK_u: return KEY_U;
 261     case SDLK_v: return KEY_V;
 262     case SDLK_w: return KEY_W;
 263     case SDLK_x: return KEY_X;
 264     case SDLK_y: return KEY_Y;
 265     case SDLK_z: return KEY_Z;
 266     case SDLK_RETURN: return KEY_RETURN;
 267     case SDLK_ESCAPE: return KEY_ESCAPE;
 268     case SDLK_BACKSPACE: return KEY_BACKSPACE;
 269     case SDLK_TAB: return KEY_TAB;
 270     case SDLK_SPACE: return KEY_SPACE;
 271     case SDLK_MINUS: return KEY_MINUS;
 272     case SDLK_EQUALS: return KEY_EQUALS;
 273     case SDLK_LEFTBRACKET: return KEY_LEFTBRACKET;
 274     case SDLK_RIGHTBRACKET: return KEY_RIGHTBRACKET;
 275     case SDLK_BACKSLASH: return KEY_BACKSLASH;
 276     case SDLK_SEMICOLON: return KEY_SEMICOLON;
 277     case SDLK_QUOTE: return KEY_APOSTROPHE;
 278     case SDLK_BACKQUOTE: return KEY_GRAVE;
 279     case SDLK_COMMA: return KEY_COMMA;
 280     case SDLK_PERIOD: return KEY_PERIOD;
 281     case SDLK_SLASH: return KEY_SLASH;
 282     case SDLK_CAPSLOCK: return KEY_CAPSLOCK;
 283     case SDLK_F1: return KEY_F1;
 284     case SDLK_F2: return KEY_F2;
 285     case SDLK_F3: return KEY_F3;
 286     case SDLK_F4: return KEY_F4;
 287     case SDLK_F5: return KEY_F5;
 288     case SDLK_F6: return KEY_F6;
 289     case SDLK_F7: return KEY_F7;
 290     case SDLK_F8: return KEY_F8;
 291     case SDLK_F9: return KEY_F9;
 292     case SDLK_F10: return KEY_F10;
 293     case SDLK_F11: return KEY_F11;
 294     case SDLK_F12: return KEY_F12;
 295     case SDLK_PRINT: return KEY_PRINTSCREEN;
 296     case SDLK_SCROLLOCK: return KEY_SCROLLLOCK;
 297     case SDLK_PAUSE: return KEY_PAUSE;
 298     case SDLK_INSERT: return KEY_INSERT;
 299     case SDLK_HOME: return KEY_HOME;
 300     case SDLK_PAGEUP: return KEY_PAGEUP;
 301     case SDLK_DELETE: return KEY_DELETE;
 302     case SDLK_END: return KEY_END;
 303     case SDLK_PAGEDOWN: return KEY_PAGEDOWN;
 304     case SDLK_RIGHT: return KEY_RIGHT;
 305     case SDLK_LEFT: return KEY_LEFT;
 306     case SDLK_DOWN: return KEY_DOWN;
 307     case SDLK_UP: return KEY_UP;
 308     case SDLK_NUMLOCK: return KEY_NUMLOCK;
 309     case SDLK_KP_DIVIDE: return KEY_KP_DIVIDE;
 310     case SDLK_KP_MULTIPLY: return KEY_KP_MULTIPLY;
 311     case SDLK_KP_MINUS: return KEY_KP_MINUS;
 312     case SDLK_KP_PLUS: return KEY_KP_PLUS;
 313     case SDLK_KP_ENTER: return KEY_KP_ENTER;
 314     case SDLK_KP0: return KEY_KP_0;
 315     case SDLK_KP1: return KEY_KP_1;
 316     case SDLK_KP2: return KEY_KP_2;
 317     case SDLK_KP3: return KEY_KP_3;
 318     case SDLK_KP4: return KEY_KP_4;
 319     case SDLK_KP5: return KEY_KP_5;
 320     case SDLK_KP6: return KEY_KP_6;
 321     case SDLK_KP7: return KEY_KP_7;
 322     case SDLK_KP8: return KEY_KP_8;
 323     case SDLK_KP9: return KEY_KP_9;
 324     case SDLK_KP_PERIOD: return KEY_KP_PERIOD;
 325     case SDLK_SYSREQ: return KEY_SYSREQ;
 326     case SDLK_LCTRL: return KEY_LCTRL;
 327     case SDLK_LSHIFT: return KEY_LSHIFT;
 328     case SDLK_LALT: return KEY_LALT;
 329     case SDLK_LSUPER: return KEY_LSUPER;
 330     case SDLK_RCTRL: return KEY_RCTRL;
 331     case SDLK_RSHIFT: return KEY_RSHIFT;
 332     case SDLK_RALT: return KEY_RALT;
 333     case SDLK_RSUPER: return KEY_RSUPER;
 334     default: return KEY_UNKNOWN;
 335   }
 336 }
 337
 338 static void poll_events (void (*h)(int key, int down)) {
 339   int key;
 340   SDL_Event ev;
 341   while (SDL_PollEvent(&ev)) {
 342     switch (ev.type) {
 343       case SDL_QUIT:
 344         ERR_quit();
 345         break;
 346       case SDL_VIDEORESIZE:
 347         R_set_videomode(ev.resize.w, ev.resize.h, Y_get_fullscreen());
 348         break;
 349       case SDL_KEYDOWN:
 350       case SDL_KEYUP:
 351         key = sdl_to_key(ev.key.keysym.sym);
 352         I_press(key, ev.type == SDL_KEYDOWN);
 353         if (h != NULL) {
 354           (*h)(key, ev.type == SDL_KEYDOWN);
 355         }
 356         break;
 357     }
 358   }
 359 }
 360
 361 int main (int argc, char *argv[]) {
 362   char *pw;
 363   Uint32 t, ticks;
 364   logo("main: initialize SDL\n");
 365   if (SDL_Init(SDL_INIT_VIDEO | SDL_INIT_TIMER) == -1) {
 366     logo("main: failed to init SDL: %s\n", SDL_GetError());
 367     return 1;
 368   }
 369   SDL_WM_SetCaption("Doom 2D v1.351", "Doom 2D");
 370   // Player 1 defaults
 371   pl1.ku = KEY_KP_8;
 372   pl1.kd = KEY_KP_5;
 373   pl1.kl = KEY_KP_4;
 374   pl1.kr = KEY_KP_6;
 375   pl1.kf = KEY_PAGEDOWN;
 376   pl1.kj = KEY_DELETE;
 377   pl1.kwl = KEY_HOME;
 378   pl1.kwr = KEY_END;
 379   pl1.kp = KEY_KP_8;
 380   // Player 2 defaults
 381   pl2.ku = KEY_E;
 382   pl2.kd = KEY_D;
 383   pl2.kl = KEY_S;
 384   pl2.kr = KEY_F;
 385   pl2.kf = KEY_A;
 386   pl2.kj = KEY_Q;
 387   pl2.kwl = KEY_1;
 388   pl2.kwr = KEY_2;
 389   pl2.kp = KEY_E;
 390   srand(SDL_GetTicks());
 391   F_startup();
 392 #ifndef WIN32
 393   pw = "/usr/share/doom2d-rembo/doom2d.wad";
 394 #else
 395   pw = "doom2d.wad";
 396 #endif
 397   if (fexists(pw)) {
 398     F_addwad(pw);
 399   } else {
 400     F_addwad("doom2d.wad");
 401   }
 402   CFG_args(argc, argv);
 403   CFG_load();
 404   F_initwads();
 405   M_startup();
 406   F_allocres();
 407   S_init();
 408   S_initmusic();
 409   R_init();
 410   G_init();
 411   ticks = SDL_GetTicks();
 412   while (!quit) {
 413     poll_events(&G_keyf);
 414     S_updatemusic();
 415     t = SDL_GetTicks();
 416     if (t - ticks > DELAY) {
 417       ticks = t;
 418       G_act();
 419     }
 420     R_draw();
 421   }
 422   CFG_save();
 423   R_done();
 424   S_donemusic();
 425   S_done();
 426   M_shutdown();
 427   SDL_Quit();
 428   return 0;
 429 }