src/sdl2/main.c

   1 #include "SDL.h"
   2 #include <stdio.h>
   3 #include <stdarg.h>
   4 #include <stdlib.h> // srand exit
   5 #include <string.h> // strcasecmp
   6 #include <assert.h>
   7 #include "system.h"
   8 #include "input.h"
   9
  10 #include "my.h" // fexists
  11 #include "player.h" // pl1 pl2
  12 #include "menu.h" // G_keyf
  13 #include "error.h" // logo
  14
  15 #include "files.h" // F_startup F_addwad F_initwads F_allocres
  16 #include "config.h" // CFG_args CFG_load CFG_save
  17 #include "memory.h" // M_startup
  18 #include "game.h" // G_init G_act
  19 #include "sound.h" // S_init S_done
  20 #include "music.h" // S_initmusic S_updatemusic S_donemusic
  21 #include "render.h" // R_init R_draw R_done
  22
  23 #define TITLE_STR "DooM 2D (SDL2)"
  24
  25 static int quit = 0;
  26 static SDL_Window *window;
  27 static SDL_GLContext context;
  28 static SDL_Surface *surf;
  29
  30 /* --- error.h --- */
  31
  32 void logo (const char *s, ...) {
  33   va_list ap;
  34   va_start(ap, s);
  35   vprintf(s, ap);
  36   va_end(ap);
  37   fflush(stdout);
  38 }
  39
  40 void logo_gas (int cur, int all) {
  41   // stub
  42 }
  43
  44 void ERR_failinit (char *s, ...) {
  45   va_list ap;
  46   va_start(ap, s);
  47   vprintf(s, ap);
  48   va_end(ap);
  49   puts("");
  50   exit(1);
  51 }
  52
  53 void ERR_fatal (char *s, ...) {
  54   va_list ap;
  55   R_done();
  56   S_done();
  57   S_donemusic();
  58   M_shutdown();
  59   SDL_Quit();
  60   puts("\nКРИТИЧЕСКАЯ ОШИБКА:");
  61   va_start(ap, s);
  62   vprintf(s, ap);
  63   va_end(ap);
  64   puts("");
  65   exit(1);
  66 }
  67
  68 void ERR_quit (void) {
  69   puts("Спасибо за то, что вы играли в Операцию \"Смятка\"!");
  70   //F_loadres(F_getresid("ENDOOM"),p,0,4000);
  71   quit = 1;
  72 }
  73
  74 /* --- system.h --- */
  75
  76 static int Y_resize_window (int w, int h, int fullscreen) {
  77   assert(w > 0);
  78   assert(h > 0);
  79   assert(window != NULL);
  80   if (surf != NULL) {
  81     if (surf->w != w || surf->h != h) {
  82       SDL_Surface *s = SDL_CreateRGBSurface(0, w, h, 8, 0, 0, 0, 0);
  83       if (s != NULL) {
  84         SDL_SetPaletteColors(s->format->palette, surf->format->palette->colors, 0, surf->format->palette->ncolors);
  85         SDL_FreeSurface(surf);
  86         surf = s;
  87       }
  88     }
  89   }
  90   SDL_SetWindowSize(window, w, h);
  91   Y_set_fullscreen(fullscreen);
  92   return 1;
  93 }
  94
  95 int Y_set_videomode_opengl (int w, int h, int fullscreen) {
  96   assert(w > 0);
  97   assert(h > 0);
  98   Uint32 flags;
  99   SDL_Window *win;
 100   SDL_GLContext ctx;
 101   if (window != NULL && context != NULL) {
 102     Y_resize_window(w, h, fullscreen);
 103     win = window;
 104   } else {
 105     flags = SDL_WINDOW_RESIZABLE | SDL_WINDOW_OPENGL;
 106     if (fullscreen) {
 107       flags = flags | SDL_WINDOW_FULLSCREEN;
 108     }
 109     // TODO set context version and type
 110     SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, 1);
 111     SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, 1);
 112     SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 1);
 113     win = SDL_CreateWindow(TITLE_STR, SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED, w, h, flags);
 114     if (win != NULL) {
 115       ctx = SDL_GL_CreateContext(win);
 116       if (ctx != NULL) {
 117         Y_unset_videomode();
 118         window = win;
 119         context = ctx;
 120         SDL_GL_MakeCurrent(window, context);
 121       } else {
 122         SDL_DestroyWindow(win);
 123         win = NULL;
 124       }
 125     }
 126   }
 127   return win != NULL;
 128 }
 129
 130 int Y_set_videomode_software (int w, int h, int fullscreen) {
 131   assert(w > 0);
 132   assert(h > 0);
 133   Uint32 flags;
 134   SDL_Surface *s;
 135   SDL_Window *win;
 136   if (window != NULL && surf != NULL) {
 137     Y_resize_window(w, h, fullscreen);
 138     win = window;
 139   } else {
 140     flags = SDL_WINDOW_RESIZABLE;
 141     if (fullscreen) {
 142       flags = flags | SDL_WINDOW_FULLSCREEN;
 143     }
 144     win = SDL_CreateWindow(TITLE_STR, SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED, w, h, flags);
 145     if (win != NULL) {
 146       s = SDL_CreateRGBSurface(0, w, h, 8, 0, 0, 0, 0);
 147       if (s != NULL) {
 148         Y_unset_videomode();
 149         window = win;
 150         surf = s;
 151       } else {
 152         SDL_DestroyWindow(win);
 153         win = NULL;
 154       }
 155     }
 156   }
 157   return win != NULL;
 158 }
 159
 160 void Y_get_videomode (int *w, int *h) {
 161   if (window != NULL) {
 162     SDL_GetWindowSize(window, w, h);
 163   } else {
 164     *w = 0;
 165     *h = 0;
 166   }
 167 }
 168
 169 int Y_videomode_setted (void) {
 170   return window != NULL;
 171 }
 172
 173 void Y_unset_videomode (void) {
 174   if (window != NULL) {
 175     if (context != NULL) {
 176       SDL_GL_MakeCurrent(window, NULL);
 177       SDL_GL_DeleteContext(context);
 178       context = NULL;
 179     }
 180     if (surf != NULL) {
 181       SDL_FreeSurface(surf);
 182       surf = NULL;
 183     }
 184     SDL_DestroyWindow(window);
 185     window = NULL;
 186   }
 187 }
 188
 189 void Y_set_fullscreen (int yes) {
 190   if (window != NULL) {
 191     SDL_SetWindowFullscreen(window, yes ? SDL_WINDOW_FULLSCREEN : 0);
 192   }
 193 }
 194
 195 int Y_get_fullscreen (void) {
 196   return (window != NULL) && (SDL_GetWindowFlags(window) & SDL_WINDOW_FULLSCREEN);
 197 }
 198
 199 void Y_swap_buffers (void) {
 200   assert(window != NULL);
 201   assert(context != NULL);
 202   SDL_GL_SwapWindow(window);
 203 }
 204
 205 void Y_get_buffer (byte **buf, int *w, int *h, int *pitch) {
 206   assert(window != NULL);
 207   assert(surf != NULL);
 208   *buf = surf->pixels;
 209   *w = surf->w;
 210   *h = surf->h;
 211   *pitch = surf->pitch;
 212 }
 213
 214 void Y_set_vga_palette (byte *vgapal) {
 215   assert(window != NULL);
 216   assert(surf != NULL);
 217   int i;
 218   byte *p = vgapal;
 219   SDL_Color colors[256];
 220   for (i = 0; i < 256; i++) {
 221     colors[i] = (SDL_Color) {
 222       .r = p[0] * 255 / 63,
 223       .g = p[1] * 255 / 63,
 224       .b = p[2] * 255 / 63
 225     };
 226     p += 3;
 227   }
 228   SDL_SetPaletteColors(surf->format->palette, colors, 0, 256);
 229 }
 230
 231 void Y_repaint_rect (int x, int y, int w, int h) {
 232   assert(window != NULL);
 233   assert(surf != NULL);
 234   SDL_Surface *s = SDL_GetWindowSurface(window);
 235   SDL_Rect r = (SDL_Rect) {
 236     .x = x,
 237     .y = y,
 238     .w = w,
 239     .h = h
 240   };
 241   SDL_BlitSurface(surf, &r, s, &r);
 242   SDL_UpdateWindowSurfaceRects(window, &r, 1);
 243 }
 244
 245 void Y_repaint (void) {
 246   Y_repaint_rect(0, 0, surf->w, surf->h);
 247 }
 248
 249 /* --- main --- */
 250
 251 static int sdl_to_key (int code) {
 252   switch (code) {
 253     case SDL_SCANCODE_0: return KEY_0;
 254     case SDL_SCANCODE_1: return KEY_1;
 255     case SDL_SCANCODE_2: return KEY_2;
 256     case SDL_SCANCODE_3: return KEY_3;
 257     case SDL_SCANCODE_4: return KEY_4;
 258     case SDL_SCANCODE_5: return KEY_5;
 259     case SDL_SCANCODE_6: return KEY_6;
 260     case SDL_SCANCODE_7: return KEY_7;
 261     case SDL_SCANCODE_8: return KEY_8;
 262     case SDL_SCANCODE_9: return KEY_9;
 263     case SDL_SCANCODE_A: return KEY_A;
 264     case SDL_SCANCODE_B: return KEY_B;
 265     case SDL_SCANCODE_C: return KEY_C;
 266     case SDL_SCANCODE_D: return KEY_D;
 267     case SDL_SCANCODE_E: return KEY_E;
 268     case SDL_SCANCODE_F: return KEY_F;
 269     case SDL_SCANCODE_G: return KEY_G;
 270     case SDL_SCANCODE_H: return KEY_H;
 271     case SDL_SCANCODE_I: return KEY_I;
 272     case SDL_SCANCODE_J: return KEY_J;
 273     case SDL_SCANCODE_K: return KEY_K;
 274     case SDL_SCANCODE_L: return KEY_L;
 275     case SDL_SCANCODE_M: return KEY_M;
 276     case SDL_SCANCODE_N: return KEY_N;
 277     case SDL_SCANCODE_O: return KEY_O;
 278     case SDL_SCANCODE_P: return KEY_P;
 279     case SDL_SCANCODE_Q: return KEY_Q;
 280     case SDL_SCANCODE_R: return KEY_R;
 281     case SDL_SCANCODE_S: return KEY_S;
 282     case SDL_SCANCODE_T: return KEY_T;
 283     case SDL_SCANCODE_U: return KEY_U;
 284     case SDL_SCANCODE_V: return KEY_V;
 285     case SDL_SCANCODE_W: return KEY_W;
 286     case SDL_SCANCODE_X: return KEY_X;
 287     case SDL_SCANCODE_Y: return KEY_Y;
 288     case SDL_SCANCODE_Z: return KEY_Z;
 289     case SDL_SCANCODE_RETURN: return KEY_RETURN;
 290     case SDL_SCANCODE_ESCAPE: return KEY_ESCAPE;
 291     case SDL_SCANCODE_BACKSPACE: return KEY_BACKSPACE;
 292     case SDL_SCANCODE_TAB: return KEY_TAB;
 293     case SDL_SCANCODE_SPACE: return KEY_SPACE;
 294     case SDL_SCANCODE_MINUS: return KEY_MINUS;
 295     case SDL_SCANCODE_EQUALS: return KEY_EQUALS;
 296     case SDL_SCANCODE_LEFTBRACKET: return KEY_LEFTBRACKET;
 297     case SDL_SCANCODE_RIGHTBRACKET: return KEY_RIGHTBRACKET;
 298     case SDL_SCANCODE_BACKSLASH: return KEY_BACKSLASH;
 299     case SDL_SCANCODE_SEMICOLON: return KEY_SEMICOLON;
 300     case SDL_SCANCODE_APOSTROPHE: return KEY_APOSTROPHE;
 301     case SDL_SCANCODE_GRAVE: return KEY_GRAVE;
 302     case SDL_SCANCODE_COMMA: return KEY_COMMA;
 303     case SDL_SCANCODE_PERIOD: return KEY_PERIOD;
 304     case SDL_SCANCODE_SLASH: return KEY_SLASH;
 305     case SDL_SCANCODE_CAPSLOCK: return KEY_CAPSLOCK;
 306     case SDL_SCANCODE_F1: return KEY_F1;
 307     case SDL_SCANCODE_F2: return KEY_F2;
 308     case SDL_SCANCODE_F3: return KEY_F3;
 309     case SDL_SCANCODE_F4: return KEY_F4;
 310     case SDL_SCANCODE_F5: return KEY_F5;
 311     case SDL_SCANCODE_F6: return KEY_F6;
 312     case SDL_SCANCODE_F7: return KEY_F7;
 313     case SDL_SCANCODE_F8: return KEY_F8;
 314     case SDL_SCANCODE_F9: return KEY_F9;
 315     case SDL_SCANCODE_F10: return KEY_F10;
 316     case SDL_SCANCODE_F11: return KEY_F11;
 317     case SDL_SCANCODE_F12: return KEY_F12;
 318     case SDL_SCANCODE_PRINTSCREEN: return KEY_PRINTSCREEN;
 319     case SDL_SCANCODE_SCROLLLOCK: return KEY_SCROLLLOCK;
 320     case SDL_SCANCODE_PAUSE: return KEY_PAUSE;
 321     case SDL_SCANCODE_INSERT: return KEY_INSERT;
 322     case SDL_SCANCODE_HOME: return KEY_HOME;
 323     case SDL_SCANCODE_PAGEUP: return KEY_PAGEUP;
 324     case SDL_SCANCODE_DELETE: return KEY_DELETE;
 325     case SDL_SCANCODE_END: return KEY_END;
 326     case SDL_SCANCODE_PAGEDOWN: return KEY_PAGEDOWN;
 327     case SDL_SCANCODE_RIGHT: return KEY_RIGHT;
 328     case SDL_SCANCODE_LEFT: return KEY_LEFT;
 329     case SDL_SCANCODE_DOWN: return KEY_DOWN;
 330     case SDL_SCANCODE_UP: return KEY_UP;
 331     case SDL_SCANCODE_NUMLOCKCLEAR: return KEY_NUMLOCK;
 332     case SDL_SCANCODE_KP_DIVIDE: return KEY_KP_DIVIDE;
 333     case SDL_SCANCODE_KP_MULTIPLY: return KEY_KP_MULTIPLY;
 334     case SDL_SCANCODE_KP_MINUS: return KEY_KP_MINUS;
 335     case SDL_SCANCODE_KP_PLUS: return KEY_KP_PLUS;
 336     case SDL_SCANCODE_KP_ENTER: return KEY_KP_ENTER;
 337     case SDL_SCANCODE_KP_0: return KEY_KP_0;
 338     case SDL_SCANCODE_KP_1: return KEY_KP_1;
 339     case SDL_SCANCODE_KP_2: return KEY_KP_2;
 340     case SDL_SCANCODE_KP_3: return KEY_KP_3;
 341     case SDL_SCANCODE_KP_4: return KEY_KP_4;
 342     case SDL_SCANCODE_KP_5: return KEY_KP_5;
 343     case SDL_SCANCODE_KP_6: return KEY_KP_6;
 344     case SDL_SCANCODE_KP_7: return KEY_KP_7;
 345     case SDL_SCANCODE_KP_8: return KEY_KP_8;
 346     case SDL_SCANCODE_KP_9: return KEY_KP_9;
 347     case SDL_SCANCODE_KP_PERIOD: return KEY_KP_PERIOD;
 348     case SDL_SCANCODE_SYSREQ: return KEY_SYSREQ;
 349     case SDL_SCANCODE_LCTRL: return KEY_LCTRL;
 350     case SDL_SCANCODE_LSHIFT: return KEY_LSHIFT;
 351     case SDL_SCANCODE_LALT: return KEY_LALT;
 352     case SDL_SCANCODE_LGUI: return KEY_LSUPER;
 353     case SDL_SCANCODE_RCTRL: return KEY_RCTRL;
 354     case SDL_SCANCODE_RSHIFT: return KEY_RSHIFT;
 355     case SDL_SCANCODE_RALT: return KEY_RALT;
 356     case SDL_SCANCODE_RGUI: return KEY_RSUPER;
 357     default: return KEY_UNKNOWN;
 358   }
 359 }
 360
 361 static void window_event_handler (SDL_WindowEvent *ev) {
 362   switch (ev->event) {
 363     case SDL_WINDOWEVENT_RESIZED:
 364       R_set_videomode(ev->data1, ev->data2, Y_get_fullscreen());
 365       break;
 366     case SDL_WINDOWEVENT_CLOSE:
 367       ERR_quit();
 368       break;
 369   }
 370 }
 371
 372 static void poll_events (void (*h)(int key, int down)) {
 373   int key;
 374   SDL_Event ev;
 375   while (SDL_PollEvent(&ev)) {
 376     switch (ev.type) {
 377       case SDL_QUIT:
 378         ERR_quit();
 379         break;
 380       case SDL_WINDOWEVENT:
 381         if (ev.window.windowID == SDL_GetWindowID(window)) {
 382           window_event_handler(&ev.window);
 383         }
 384         break;
 385       case SDL_KEYDOWN:
 386       case SDL_KEYUP:
 387         key = sdl_to_key(ev.key.keysym.scancode);
 388         I_press(key, ev.type == SDL_KEYDOWN);
 389         if (h != NULL) {
 390           (*h)(key, ev.type == SDL_KEYDOWN);
 391         }
 392         break;
 393     }
 394   }
 395 }
 396
 397 int main (int argc, char **argv) {
 398   char *pw;
 399   Uint32 t, ticks;
 400   logo("system: initialize SDL2\n");
 401   if (SDL_Init(SDL_INIT_TIMER | SDL_INIT_VIDEO | SDL_INIT_EVENTS) == -1) {
 402     logo("system: failed to init SDL2: %s\n", SDL_GetError());
 403     return 1;
 404   }
 405   //SDL_WM_SetCaption("Doom 2D v1.351", "Doom 2D");
 406   // Player 1 defaults
 407   pl1.ku = KEY_KP_8;
 408   pl1.kd = KEY_KP_5;
 409   pl1.kl = KEY_KP_4;
 410   pl1.kr = KEY_KP_6;
 411   pl1.kf = KEY_PAGEDOWN;
 412   pl1.kj = KEY_DELETE;
 413   pl1.kwl = KEY_HOME;
 414   pl1.kwr = KEY_END;
 415   pl1.kp = KEY_KP_8;
 416   // Player 2 defaults
 417   pl2.ku = KEY_E;
 418   pl2.kd = KEY_D;
 419   pl2.kl = KEY_S;
 420   pl2.kr = KEY_F;
 421   pl2.kf = KEY_A;
 422   pl2.kj = KEY_Q;
 423   pl2.kwl = KEY_1;
 424   pl2.kwr = KEY_2;
 425   pl2.kp = KEY_E;
 426   srand(SDL_GetTicks());
 427   F_startup();
 428 #ifndef WIN32
 429   pw = "/usr/share/doom2d-rembo/doom2d.wad";
 430 #else
 431   pw = "doom2d.wad";
 432 #endif
 433   if (fexists(pw)) {
 434     F_addwad(pw);
 435   } else {
 436     F_addwad("doom2d.wad");
 437   }
 438   CFG_args(argc, argv);
 439   CFG_load();
 440   F_initwads();
 441   M_startup();
 442   F_allocres();
 443   S_init();
 444   S_initmusic();
 445   R_init();
 446   G_init();
 447   ticks = SDL_GetTicks();
 448   while (!quit) {
 449     poll_events(&G_keyf);
 450     S_updatemusic();
 451     t = SDL_GetTicks();
 452     if (t - ticks > DELAY) {
 453       ticks = t;
 454       G_act();
 455     }
 456     R_draw();
 457   }
 458   CFG_save();
 459   R_done();
 460   S_donemusic();
 461   S_done();
 462   M_shutdown();
 463   SDL_Quit();
 464   return 0;
 465 }