src/game/sdl/g_system.pas

   1 (* Copyright (C)  Doom 2D: Forever Developers
   2  *
   3  * This program is free software: you can redistribute it and/or modify
   4  * it under the terms of the GNU General Public License as published by
   5  * the Free Software Foundation, version 3 of the License ONLY.
   6  *
   7  * This program is distributed in the hope that it will be useful,
   8  * but WITHOUT ANY WARRANTY; without even the implied warranty of
   9  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  10  * GNU General Public License for more details.
  11  *
  12  * You should have received a copy of the GNU General Public License
  13  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  14  *)
  15 {$INCLUDE ../shared/a_modes.inc}
  16 unit g_system;
  17
  18 interface
  19
  20   uses Utils;
  21
  22   (* --- Utils --- *)
  23   function sys_GetTicks (): Int64;
  24   procedure sys_Delay (ms: Integer);
  25
  26   (* --- Graphics --- *)
  27   function sys_GetDisplayModes (bpp: Integer): SSArray;
  28   function sys_SetDisplayMode (w, h, bpp: Integer; fullscreen, maximized: Boolean): Boolean;
  29   procedure sys_EnableVSync (yes: Boolean);
  30   procedure sys_Repaint;
  31
  32   (* --- Input --- *)
  33   function sys_HandleInput (): Boolean;
  34   procedure sys_RequestQuit;
  35
  36   (* --- Init --- *)
  37   procedure sys_Init;
  38   procedure sys_Final;
  39
  40 implementation
  41
  42   uses
  43     {$IF DEFINED(DARWIN) OR DEFINED(MACOS)}
  44       Keyboards, Events,
  45       {$IFDEF CPU64}
  46         {$linkframework Carbon}
  47       {$ENDIF}
  48     {$ENDIF}
  49     SysUtils, SDL, Math,
  50     {$INCLUDE ../nogl/noGLuses.inc}
  51     e_log, e_graphics, e_input, e_sound,
  52     g_options, g_window, g_console, g_game, g_menu, g_gui, g_main, g_basic;
  53
  54   const
  55     GameTitle = 'Doom 2D: Forever (SDL 1.2, %s, %s)';
  56
  57   var
  58     userResize: Boolean;
  59     modeResize: Integer;
  60     useScancodes: Boolean;
  61     screen: PSDL_Surface;
  62     JoystickHandle: array [0..e_MaxJoys - 1] of PSDL_Joystick;
  63     JoystickHatState: array [0..e_MaxJoys - 1, 0..e_MaxJoyHats - 1, HAT_LEFT..HAT_DOWN] of Boolean;
  64     JoystickZeroAxes: array [0..e_MaxJoys - 1, 0..e_MaxJoyAxes - 1] of Integer;
  65
  66   (* --------- Utils --------- *)
  67
  68   function sys_GetTicks (): Int64;
  69   begin
  70     result := SDL_GetTicks()
  71   end;
  72
  73   procedure sys_Delay (ms: Integer);
  74   begin
  75     SDL_Delay(ms)
  76   end;
  77
  78   (* --------- Graphics --------- *)
  79
  80   function LoadGL: Boolean;
  81   begin
  82     result := true;
  83     {$IFDEF NOGL_INIT}
  84     nogl_Init;
  85     if glRenderToFBO and (not nogl_ExtensionSupported('GL_OES_framebuffer_object')) then
  86     {$ELSE}
  87     if glRenderToFBO and (not Load_GL_ARB_framebuffer_object) then
  88     {$ENDIF}
  89     begin
  90       e_LogWriteln('GL: framebuffer objects not supported; disabling FBO rendering');
  91       glRenderToFBO := false;
  92     end;
  93   end;
  94
  95   procedure FreeGL;
  96   begin
  97     {$IFDEF NOGL_INIT}
  98     nogl_Quit();
  99     {$ENDIF}
 100   end;
 101
 102   procedure UpdateSize (w, h: Integer);
 103   begin
 104     gWinSizeX := w;
 105     gWinSizeY := h;
 106     gRC_Width := w;
 107     gRC_Height := h;
 108     if glRenderToFBO then
 109     begin
 110       // store real window size in gWinSize, downscale resolution now
 111       w := round(w / r_pixel_scale);
 112       h := round(h / r_pixel_scale);
 113       if not e_ResizeFramebuffer(w, h) then
 114       begin
 115         e_LogWriteln('GL: could not create framebuffer, falling back to --no-fbo');
 116         glRenderToFBO := False;
 117         w := gWinSizeX;
 118         h := gWinSizeY;
 119       end;
 120     end;
 121     gScreenWidth := w;
 122     gScreenHeight := h;
 123     {$IFDEF ENABLE_HOLMES}
 124       fuiScrWdt := w;
 125       fuiScrHgt := h;
 126     {$ENDIF}
 127     e_ResizeWindow(w, h);
 128     e_InitGL;
 129     g_Game_SetupScreenSize;
 130     g_Menu_Reset;
 131     g_Game_ClearLoading;
 132   end;
 133
 134   function GetDriver (): AnsiString;
 135     var buf: array [0..31] of AnsiChar;
 136   begin
 137     buf := '';
 138     SDL_VideoDriverName(buf, Length(buf));
 139     result := AnsiString(buf);
 140   end;
 141
 142   function GetTitle (): AnsiString;
 143     var info: AnsiString;
 144   begin
 145     info := g_GetBuildHash(false);
 146     if info = 'custom build' then
 147       info := info + ' by ' + g_GetBuilderName() + ' ' + GAME_BUILDDATE + ' ' + GAME_BUILDTIME;
 148     result := Format(GameTitle, [GetDriver(), info]);
 149   end;
 150
 151   function InitWindow (w, h, bpp: Integer; fullScreen: Boolean): Boolean;
 152     var flags: Uint32; title: AnsiString;
 153   begin
 154     e_LogWritefln('InitWindow %s %s %s %s', [w, h, bpp, fullScreen]);
 155     result := false;
 156     SDL_GL_SetAttribute(SDL_GL_RED_SIZE, 8);
 157     SDL_GL_SetAttribute(SDL_GL_GREEN_SIZE, 8);
 158     SDL_GL_SetAttribute(SDL_GL_BLUE_SIZE, 8);
 159     SDL_GL_SetAttribute(SDL_GL_DEPTH_SIZE, 16);
 160     SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 1);
 161     SDL_GL_SetAttribute(SDL_GL_STENCIL_SIZE, 8); // lights; it is enough to have 1-bit stencil buffer for lighting, but...
 162     flags := SDL_OPENGL;
 163     if fullScreen then flags := flags or SDL_FULLSCREEN;
 164     if userResize then flags := flags or SDL_VIDEORESIZE;
 165     if (screen = nil) or (SDL_VideoModeOk(w, h, bpp, flags) <> 0) then
 166     begin
 167       SDL_FreeSurface(screen);
 168       screen := SDL_SetVideoMode(w, h, bpp, flags);
 169       if screen <> nil then
 170       begin
 171         if not LoadGL then
 172         begin
 173           e_LogWriteln('GL: unable to load OpenGL functions', TMsgType.Fatal);
 174           exit;
 175         end;
 176         title := GetTitle();
 177         SDL_WM_SetCaption(PChar(title), nil);
 178         gFullScreen := fullscreen;
 179         gRC_FullScreen := fullscreen;
 180         UpdateSize(w, h);
 181         result := True
 182       end
 183     end
 184     else
 185     begin
 186       e_LogWritefln('SDL: video mode not supported', [])
 187     end
 188   end;
 189
 190   procedure sys_Repaint;
 191   begin
 192     SDL_GL_SwapBuffers
 193   end;
 194
 195   procedure sys_EnableVSync (yes: Boolean);
 196   begin
 197     (* ??? *)
 198   end;
 199
 200   function sys_GetDisplayModes (bpp: Integer): SSArray;
 201     var m: PPSDL_Rect; f: TSDL_PixelFormat; i, count: Integer;
 202   begin
 203     result := nil;
 204     FillChar(f, sizeof(f), 0);
 205     f.palette := nil;
 206     f.BitsPerPixel := bpp;
 207     f.BytesPerPixel := (bpp + 7) div 8;
 208     m := SDL_ListModes(@f, SDL_OPENGL or SDL_FULLSCREEN);
 209     if (m <> NIL) and (UIntPtr(m) <> UIntPtr(-1)) then
 210     begin
 211       count := 0;
 212       while m[count] <> nil do inc(count);
 213       SetLength(result, count);
 214       for i := 0 to count - 1 do
 215         result[i] := IntToStr(m[i].w) + 'x' + IntToStr(m[i].h);
 216     end
 217   end;
 218
 219   function sys_SetDisplayMode (w, h, bpp: Integer; fullscreen, maximized: Boolean): Boolean;
 220   begin
 221     result := InitWindow(w, h, bpp, fullscreen)
 222   end;
 223
 224   (* --------- Joystick --------- *)
 225
 226   procedure HandleJoyButton (var ev: TSDL_JoyButtonEvent);
 227     var down: Boolean; key: Integer;
 228   begin
 229     if (ev.which < e_MaxJoys) and (ev.button < e_MaxJoyBtns) then
 230     begin
 231       key := e_JoyButtonToKey(ev.which, ev.button);
 232       down := ev.type_ = SDL_JOYBUTTONDOWN;
 233       if g_dbg_input then
 234         e_LogWritefln('Input Debug: jbutton, joy=%s, button=%s, keycode=%s, press=%s', [ev.which, ev.button, key, down]);
 235       e_KeyUpDown(key, down);
 236       g_Console_ProcessBind(key, down)
 237     end
 238     else
 239     begin
 240       if g_dbg_input then
 241       begin
 242         down := ev.type_ = SDL_JOYBUTTONDOWN;
 243         e_LogWritefln('Input Debug: NOT IN RANGE! jbutton, joy=%s, button=%s, press=%s', [ev.which, ev.button, down])
 244       end
 245     end
 246   end;
 247
 248   procedure HandleJoyAxis (var ev: TSDL_JoyAxisEvent);
 249     var key, minuskey: Integer;
 250   begin
 251     if (ev.which < e_MaxJoys) and (ev.axis < e_MaxJoyAxes) then
 252     begin
 253       key := e_JoyAxisToKey(ev.which, ev.axis, AX_PLUS);
 254       minuskey := e_JoyAxisToKey(ev.which, ev.axis, AX_MINUS);
 255
 256       if g_dbg_input then
 257           e_LogWritefln('Input Debug: jaxis, joy=%s, axis=%s, value=%s, zeroaxes=%s, deadzone=%s', [ev.which, ev.axis, ev.value, JoystickZeroAxes[ev.which, ev.axis], e_JoystickDeadzones[ev.which]]);
 258
 259       if ev.value < JoystickZeroAxes[ev.which, ev.axis] - e_JoystickDeadzones[ev.which] then
 260       begin
 261         if (e_KeyPressed(key)) then
 262         begin
 263           e_KeyUpDown(key, False);
 264           g_Console_ProcessBind(key, False)
 265         end;
 266         e_KeyUpDown(minuskey, True);
 267         g_Console_ProcessBind(minuskey, True)
 268       end
 269       else if ev.value > JoystickZeroAxes[ev.which, ev.axis] + e_JoystickDeadzones[ev.which] then
 270       begin
 271         if (e_KeyPressed(minuskey)) then
 272         begin
 273           e_KeyUpDown(minuskey, False);
 274           g_Console_ProcessBind(minuskey, False)
 275         end;
 276         e_KeyUpDown(key, True);
 277         g_Console_ProcessBind(key, True)
 278       end
 279       else
 280       begin
 281         if (e_KeyPressed(minuskey)) then
 282         begin
 283           e_KeyUpDown(minuskey, False);
 284           g_Console_ProcessBind(minuskey, False)
 285         end;
 286         if (e_KeyPressed(key)) then
 287         begin
 288           e_KeyUpDown(key, False);
 289           g_Console_ProcessBind(key, False)
 290         end
 291       end
 292     end
 293     else
 294     begin
 295       if g_dbg_input then
 296         e_LogWritefln('Input Debug: NOT IN RANGE! jaxis, joy=%s, axis=%s, value=%s, zeroaxes=%s, deadzone=%s', [ev.which, ev.axis, ev.value, JoystickZeroAxes[ev.which, ev.axis], e_JoystickDeadzones[ev.which]])
 297     end
 298   end;
 299
 300   procedure HandleJoyHat (var ev: TSDL_JoyHatEvent);
 301     var
 302       down: Boolean;
 303       i, key: Integer;
 304       hat: array [HAT_LEFT..HAT_DOWN] of Boolean;
 305   begin
 306     if (ev.which < e_MaxJoys) and (ev.hat < e_MaxJoyHats) then
 307     begin
 308       if g_dbg_input then
 309         e_LogWritefln('Input Debug: jhat, joy=%s, hat=%s, value=%s', [ev.which, ev.hat, ev.value]);
 310       hat[HAT_UP] := LongBool(ev.value and SDL_HAT_UP);
 311       hat[HAT_DOWN] := LongBool(ev.value and SDL_HAT_DOWN);
 312       hat[HAT_LEFT] := LongBool(ev.value and SDL_HAT_LEFT);
 313       hat[HAT_RIGHT] := LongBool(ev.value and SDL_HAT_RIGHT);
 314       for i := HAT_LEFT to HAT_DOWN do
 315       begin
 316         if JoystickHatState[ev.which, ev.hat, i] <> hat[i] then
 317         begin
 318           down := hat[i];
 319           key := e_JoyHatToKey(ev.which, ev.hat, i);
 320           e_KeyUpDown(key, down);
 321           g_Console_ProcessBind(key, down)
 322         end
 323       end;
 324       JoystickHatState[ev.which, ev.hat] := hat
 325     end
 326     else
 327     begin
 328       if g_dbg_input then
 329         e_LogWritefln('Input Debug: NOT IN RANGE! jhat, joy=%s, hat=%s, value=%s', [ev.which, ev.hat, ev.value])
 330     end
 331   end;
 332
 333   procedure AddJoystick (which: Integer);
 334     var i: Integer;
 335   begin
 336     assert(which < e_MaxJoys);
 337     JoystickHandle[which] := SDL_JoystickOpen(which);
 338     if JoystickHandle[which] <> nil then
 339     begin
 340       e_LogWritefln('Added Joystick %s', [which]);
 341       e_JoystickAvailable[which] := True;
 342       for i := 0 to Min(SDL_JoystickNumAxes(JoystickHandle[which]), e_MaxJoyAxes) - 1 do
 343         JoystickZeroAxes[which, i] := SDL_JoystickGetAxis(JoystickHandle[which], i)
 344     end
 345     else
 346     begin
 347       e_LogWritefln('Failed to open Joystick %s', [which])
 348     end
 349   end;
 350
 351   procedure RemoveJoystick (which: Integer);
 352   begin
 353     assert(which < e_MaxJoys);
 354     e_LogWritefln('Remove Joystick %s', [which]);
 355     e_JoystickAvailable[which] := False;
 356     if JoystickHandle[which] <> nil then
 357       SDL_JoystickClose(JoystickHandle[which]);
 358     JoystickHandle[which] := nil
 359   end;
 360
 361   (* --------- Input --------- *)
 362
 363 {$IF DEFINED(DARWIN) OR DEFINED(MACOS)}
 364   var
 365     IsMacPlatform: Boolean;
 366
 367   function IsMacModSym (sym: Integer): Boolean;
 368   begin
 369     case sym of
 370       SDLK_NUMLOCK,
 371       SDLK_CAPSLOCK,
 372       SDLK_RCTRL, SDLK_LCTRL,
 373       SDLK_RSHIFT, SDLK_LSHIFT,
 374       SDLK_RALT, SDLK_LALT,
 375       SDLK_RSUPER, SDLK_LSUPER,
 376       SDLK_RMETA, SDLK_LMETA:
 377         result := true;
 378       otherwise
 379         result := false;
 380     end;
 381   end;
 382
 383   function Mac2Stub (scancode: Integer): Integer;
 384   begin
 385     (* SDL 2 swap tilda/grave and paragraph/plus-minus buttons on ISO keyboards *)
 386     if ((scancode = 10) or (scancode = 50)) and (KBGetLayoutType(LMGetKbdType()) = kKeyboardISO) then
 387       scancode := 60 - scancode;
 388     case scancode of
 389       0: result := IK_A;
 390       1: result := IK_S;
 391       2: result := IK_D;
 392       3: result := IK_F;
 393       4: result := IK_H;
 394       5: result := IK_G;
 395       6: result := IK_Z;
 396       7: result := IK_X;
 397       8: result := IK_C;
 398       9: result := IK_V;
 399       10: result := IK_NONUSBACKSLASH;
 400       11: result := IK_B;
 401       12: result := IK_Q;
 402       13: result := IK_W;
 403       14: result := IK_E;
 404       15: result := IK_R;
 405       16: result := IK_Y;
 406       17: result := IK_T;
 407       18: result := IK_1;
 408       19: result := IK_2;
 409       20: result := IK_3;
 410       21: result := IK_4;
 411       22: result := IK_6;
 412       23: result := IK_5;
 413       24: result := IK_EQUALS;
 414       25: result := IK_9;
 415       26: result := IK_7;
 416       27: result := IK_MINUS;
 417       28: result := IK_8;
 418       29: result := IK_0;
 419       30: result := {IK_RIGHTBRACKET} IK_RBRACKET;
 420       31: result := IK_O;
 421       32: result := IK_U;
 422       33: result := {IK_LEFTBRACKET} IK_LBRACKET;
 423       34: result := IK_I;
 424       35: result := IK_P;
 425       36: result := IK_RETURN;
 426       37: result := IK_L;
 427       38: result := IK_J;
 428       39: result := {IK_APOSTROPHE} IK_QUOTE;
 429       40: result := IK_K;
 430       41: result := IK_SEMICOLON;
 431       42: result := IK_BACKSLASH;
 432       43: result := IK_COMMA;
 433       44: result := IK_SLASH;
 434       45: result := IK_N;
 435       46: result := IK_M;
 436       47: result := {IK_PERIOD} IK_DOT;
 437       48: result := IK_TAB;
 438       49: result := IK_SPACE;
 439       50: result := IK_GRAVE;
 440       51: result := IK_BACKSPACE;
 441       52: result := {IK_KP_ENTER} IK_KPRETURN;
 442       53: result := IK_ESCAPE;
 443       54: result := {IK_RGUI} IK_RWIN;
 444       55: result := {IK_LGUI} IK_WIN;
 445       56: result := {IK_LSHIFT} IK_SHIFT;
 446       57: result := IK_CAPSLOCK;
 447       58: result := {IK_LALT} IK_ALT;
 448       59: result := {IK_LCTRL} IK_CTRL;
 449       60: result := IK_RSHIFT;
 450       61: result := IK_RALT;
 451       62: result := IK_RCTRL;
 452       63: result := {IK_RGUI} IK_RWIN;
 453       {64: result := IK_F17;}
 454       65: result := {IK_KP_PERIOD} IK_KPDOT;
 455       66: result := IK_INVALID; (* unused? *)
 456       67: result := {IK_KP_MULTIPLY} IK_KPMULTIPLE;
 457       68: result := IK_INVALID; (* unused? *)
 458       69: result := {IK_KP_PLUS} IK_KPPLUS;
 459       70: result := IK_INVALID; (* unused? *)
 460       71: result := {IK_NUMLOCKCLEAR} IK_NUMLOCK;
 461       {72: result := IK_VOLUMEUP;}
 462       {73: result := IK_VOLUMEDOWN;}
 463       {74: result := IK_MUTE;}
 464       75: result := {IK_KP_DIVIDE} IK_KPDIVIDE;
 465       76: result := {IK_KP_ENTER} IK_KPRETURN;
 466       77: result := IK_INVALID; (* unused? *)
 467       78: result := {IK_KP_MINUS} IK_KPMINUS;
 468       {79: result := IK_F18;}
 469       {80: result := IK_F19;}
 470       {81: result := IK_KP_EQUALS;}
 471       82: result := {IK_KP_0} IK_KPINSERT;
 472       83: result := {IK_KP_1} IK_KPEND;
 473       84: result := {IK_KP_2} IK_KPDOWN;
 474       85: result := {IK_KP_3} IK_KPPAGEDN;
 475       86: result := {IK_KP_4} IK_KPLEFT;
 476       87: result := {IK_KP_5} IK_KP5;
 477       88: result := {IK_KP_6} IK_KPRIGHT;
 478       89: result := {IK_KP_7} IK_KPHOME;
 479       90: result := IK_INVALID; (* unused? *)
 480       91: result := {IK_KP_8} IK_KPUP;
 481       92: result := {IK_KP_9} IK_KPPAGEUP;
 482       {93: result := IK_INTERNATIONAL3;}
 483       {94: result := IK_INTERNATIONAL1;}
 484       {95: result := IK_KP_COMMA;}
 485       96: result := IK_F5;
 486       97: result := IK_F6;
 487       98: result := IK_F7;
 488       99: result := IK_F3;
 489       100: result := IK_F8;
 490       101: result := IK_F9;
 491       {102: result := IK_LANG2;}
 492       103: result := IK_F11;
 493       {104: result := IK_LANG1;}
 494       105: result := {IK_PRINTSCREEN} IK_PRINTSCR;
 495       {106: result := IK_F16;}
 496       107: result := IK_SCROLLLOCK;
 497       108: result := IK_INVALID; (* unused? *)
 498       109: result := IK_F10;
 499       {110: result := IK_APPLICATION;}
 500       111: result := IK_F12;
 501       112: result := IK_INVALID; (* unused? *)
 502       113: result := IK_PAUSE;
 503       114: result := IK_INSERT;
 504       115: result := IK_HOME;
 505       116: result := IK_PAGEUP;
 506       117: result := IK_DELETE;
 507       118: result := IK_F4;
 508       119: result := IK_END;
 509       120: result := IK_F2;
 510       121: result := {IK_PAGEDOWN} IK_PAGEDN;
 511       122: result := IK_F1;
 512       123: result := IK_LEFT;
 513       124: result := IK_RIGHT;
 514       125: result := IK_DOWN;
 515       126: result := IK_UP;
 516       {127: result := IK_POWER;}
 517     otherwise result := IK_INVALID
 518     end
 519   end;
 520 {$ENDIF}
 521
 522   function Key2Stub (key: Integer): Integer;
 523     var x: Integer;
 524   begin
 525     case key of
 526       SDLK_ESCAPE: x := IK_ESCAPE;
 527       SDLK_RETURN: x := IK_RETURN;
 528       SDLK_KP_ENTER: x := IK_KPRETURN;
 529       SDLK_KP0: x := IK_KPINSERT;
 530       SDLK_UP: x := IK_UP;
 531       SDLK_KP8: x := IK_KPUP;
 532       SDLK_DOWN: x := IK_DOWN;
 533       SDLK_KP2: x := IK_KPDOWN;
 534       SDLK_LEFT: x := IK_LEFT;
 535       SDLK_KP4: x := IK_KPLEFT;
 536       SDLK_RIGHT: x := IK_RIGHT;
 537       SDLK_KP6: x := IK_KPRIGHT;
 538       SDLK_DELETE: x := IK_DELETE;
 539       SDLK_HOME: x := IK_HOME;
 540       SDLK_KP7: x := IK_KPHOME;
 541       SDLK_INSERT: x := IK_INSERT;
 542       SDLK_SPACE: x := IK_SPACE;
 543       SDLK_LSHIFT: x := IK_SHIFT;
 544       SDLK_LALT: x := IK_ALT;
 545       SDLK_TAB: x := IK_TAB;
 546       SDLK_PAGEUP: x := IK_PAGEUP;
 547       SDLK_KP9: x := IK_KPPAGEUP;
 548       SDLK_PAGEDOWN: x := IK_PAGEDN;
 549       SDLK_KP3: x := IK_KPPAGEDN;
 550       SDLK_KP5: x := IK_KP5;
 551       SDLK_NUMLOCK: x := IK_NUMLOCK;
 552       SDLK_KP_DIVIDE: x := IK_KPDIVIDE;
 553       SDLK_KP_MULTIPLY: x := IK_KPMULTIPLE;
 554       SDLK_KP_MINUS: x := IK_KPMINUS;
 555       SDLK_KP_PLUS: x := IK_KPPLUS;
 556       SDLK_KP_PERIOD: x := IK_KPDOT;
 557       SDLK_CAPSLOCK: x := IK_CAPSLOCK;
 558       SDLK_RSHIFT: x := IK_RSHIFT;
 559       SDLK_LCTRL: x := IK_CTRL;
 560       SDLK_RCTRL: x := IK_RCTRL;
 561       SDLK_RALT: x := IK_RALT;
 562       SDLK_LSUPER: x := IK_WIN;
 563       SDLK_RSUPER: x := IK_RWIN;
 564       SDLK_MENU: x := IK_MENU;
 565       SDLK_PRINT: x := IK_PRINTSCR;
 566       SDLK_SCROLLOCK: x := IK_SCROLLLOCK;
 567       SDLK_LEFTBRACKET: x := IK_LBRACKET;
 568       SDLK_RIGHTBRACKET: x := IK_RBRACKET;
 569       SDLK_SEMICOLON: x := IK_SEMICOLON;
 570       SDLK_QUOTE: x := IK_QUOTE;
 571       SDLK_BACKSLASH: x := IK_BACKSLASH;
 572       SDLK_SLASH: x := IK_SLASH;
 573       SDLK_COMMA: x := IK_COMMA;
 574       SDLK_PERIOD: x := IK_DOT;
 575       SDLK_EQUALS: x := IK_EQUALS;
 576       SDLK_0: x := IK_0;
 577       SDLK_1: x := IK_1;
 578       SDLK_2: x := IK_2;
 579       SDLK_3: x := IK_3;
 580       SDLK_4: x := IK_4;
 581       SDLK_5: x := IK_5;
 582       SDLK_6: x := IK_6;
 583       SDLK_7: x := IK_7;
 584       SDLK_8: x := IK_8;
 585       SDLK_9: x := IK_9;
 586       SDLK_F1: x := IK_F1;
 587       SDLK_F2: x := IK_F2;
 588       SDLK_F3: x := IK_F3;
 589       SDLK_F4: x := IK_F4;
 590       SDLK_F5: x := IK_F5;
 591       SDLK_F6: x := IK_F6;
 592       SDLK_F7: x := IK_F7;
 593       SDLK_F8: x := IK_F8;
 594       SDLK_F9: x := IK_F9;
 595       SDLK_F10: x := IK_F10;
 596       SDLK_F11: x := IK_F11;
 597       SDLK_F12: x := IK_F12;
 598       SDLK_END: x := IK_END;
 599       SDLK_KP1: x := IK_KPEND;
 600       SDLK_BACKSPACE: x := IK_BACKSPACE;
 601       SDLK_BACKQUOTE: x := IK_BACKQUOTE;
 602       SDLK_PAUSE: x := IK_PAUSE;
 603       SDLK_A..SDLK_Z: x := IK_A + (key - SDLK_A);
 604       SDLK_MINUS: x := IK_MINUS;
 605     else
 606       x := IK_INVALID
 607     end;
 608     result := x
 609   end;
 610
 611   procedure HandleKeyboard (var ev: TSDL_KeyboardEvent);
 612     var down, repeated: Boolean; key: Integer; ch: Char;
 613   begin
 614     key := IK_INVALID;
 615     if useScancodes then
 616     begin
 617       {$IF DEFINED(DARWIN) OR DEFINED(MACOS)}
 618         if IsMacPlatform then
 619           if IsMacModSym(ev.keysym.sym) = false then
 620             key := Mac2Stub(ev.keysym.scancode);
 621       {$ENDIF}
 622     end;
 623     if key = IK_INVALID then
 624       key := Key2Stub(ev.keysym.sym);
 625     down := (ev.type_ = SDL_KEYDOWN);
 626     repeated := down and e_KeyPressed(key);
 627     ch := wchar2win(WideChar(ev.keysym.unicode));
 628     if g_dbg_input then
 629       e_LogWritefln('Input Debug: keysym, scancode=%s, down=%s, sym=%s, state=%s, unicode=%s, stubsym=%s, cp1251=%s', [ev.keysym.scancode, down, ev.keysym.sym, ev.state, ev.keysym.unicode, key, Ord(ch)]);
 630     if not repeated then
 631     begin
 632       e_KeyUpDown(key, down);
 633       g_Console_ProcessBind(key, down);
 634     end
 635     else
 636     begin
 637       g_Console_ProcessBindRepeat(key)
 638     end;
 639     if down and IsValid1251(ev.keysym.unicode) and IsPrintable1251(ch) then
 640       CharPress(ch)
 641   end;
 642
 643   procedure HandleResize (var ev: TSDL_ResizeEvent);
 644   begin
 645     if g_dbg_input then
 646       e_LogWritefln('Input Debug: SDL_VIDEORESIZE %s %s', [ev.w, ev.h]);
 647     if modeResize = 1 then
 648       UpdateSize(ev.w, ev.h)
 649     else if modeResize > 1 then
 650       InitWindow(ev.w, ev.h, gBPP, gFullscreen)
 651   end;
 652
 653   function sys_HandleInput (): Boolean;
 654     var ev: TSDL_Event;
 655   begin
 656     result := false;
 657     while SDL_PollEvent(@ev) <> 0 do
 658     begin
 659       case ev.type_ of
 660         SDL_QUITEV: result := true;
 661         SDL_VIDEORESIZE: HandleResize(ev.resize);
 662         SDL_KEYUP, SDL_KEYDOWN: HandleKeyboard(ev.key);
 663         SDL_JOYBUTTONDOWN, SDL_JOYBUTTONUP: HandleJoyButton(ev.jbutton);
 664         SDL_JOYAXISMOTION: HandleJoyAxis(ev.jaxis);
 665         SDL_JOYHATMOTION: HandleJoyHat(ev.jhat);
 666         SDL_VIDEOEXPOSE: sys_Repaint;
 667         SDL_ACTIVEEVENT: e_MuteChannels((ev.active.gain = 0) and gMuteWhenInactive);
 668       end
 669     end
 670   end;
 671
 672   procedure sys_RequestQuit;
 673     var ev: TSDL_Event;
 674   begin
 675     ev.quit.type_ := SDL_QUITEV;
 676     SDL_PushEvent(@ev)
 677   end;
 678
 679   (* --------- Init --------- *)
 680
 681   procedure sys_Init;
 682     var flags: Uint32; i: Integer; name: AnsiString;
 683   begin
 684     e_WriteLog('Init SDL', TMsgType.Notify);
 685     flags := SDL_INIT_VIDEO or SDL_INIT_AUDIO or
 686              SDL_INIT_TIMER or SDL_INIT_JOYSTICK
 687              (*or SDL_INIT_NOPARACHUTE*);
 688     if SDL_Init(flags) <> 0 then
 689       raise Exception.Create('SDL: Init failed: ' + SDL_GetError);
 690     name := GetDriver();
 691     e_LogWritefln('SDL: Video Driver "%s"', [name]);
 692     {$IF DEFINED(DARWIN) OR DEFINED(MACOS)}
 693       IsMacPlatform := (name = 'Quartz') or (name = 'toolbox') or (name = 'DSp');
 694     {$ENDIF}
 695     SDL_EnableUNICODE(1);
 696     SDL_EnableKeyRepeat(SDL_DEFAULT_REPEAT_DELAY, SDL_DEFAULT_REPEAT_INTERVAL);
 697     for i := 0 to e_MaxJoys - 1 do
 698       AddJoystick(i)
 699   end;
 700
 701   procedure sys_Final;
 702     var i: Integer;
 703   begin
 704     e_WriteLog('Releasing SDL', TMsgType.Notify);
 705     for i := 0 to e_MaxJoys - 1 do
 706       RemoveJoystick(i);
 707     if screen <> nil then
 708     begin
 709       FreeGL;
 710       SDL_FreeSurface(screen)
 711     end;
 712     SDL_Quit
 713   end;
 714
 715 initialization
 716   (* window resize are broken both on linux and osx, so disabled by default *)
 717   conRegVar('sdl_allow_resize', @userResize, 'allow to resize window by user', 'allow to resize window by user');
 718   conRegVar('sdl_resize_action', @modeResize, 'set window resize mode (0: ignore, 1: change, 2: reset)', '');
 719   conRegVar('sdl_use_scancodes', @useScancodes, 'use platform-specific scancodes when possible', '');
 720   userResize := false;
 721   modeResize := 0;
 722   useScancodes := true;
 723 end.