src/game/renders/opengl/r_render.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 {$INCLUDE ../../../shared/a_modes.inc}
  16 unit r_render;
  17
  18 interface
  19
  20   uses
  21     {$IFDEF ENABLE_MENU}
  22       g_gui,
  23     {$ENDIF}
  24     g_base // TRectWH
  25   ;
  26
  27   (* render startup *)
  28   procedure r_Render_Initialize;
  29   procedure r_Render_Finalize;
  30
  31   (* load globally used textures *)
  32   procedure r_Render_Load;
  33   procedure r_Render_Free;
  34
  35   (* load map specific textures *)
  36   procedure r_Render_LoadTextures;
  37   procedure r_Render_FreeTextures;
  38
  39   procedure r_Render_Update;
  40   procedure r_Render_Draw;
  41
  42   procedure r_Render_Resize (w, h: Integer);
  43   procedure r_Render_Apply;
  44
  45   function r_Render_WriteScreenShot (filename: String): Boolean;
  46
  47   {$IFDEF ENABLE_GIBS}
  48     function r_Render_GetGibRect (m, id: Integer): TRectWH;
  49   {$ENDIF}
  50
  51   {$IFDEF ENABLE_GFX}
  52     procedure r_Render_QueueEffect (AnimType, X, Y: Integer);
  53   {$ENDIF}
  54
  55   {$IFDEF ENABLE_TOUCH}
  56     // touch screen button location and size
  57     procedure r_Render_GetKeyRect (key: Integer; out x, y, w, h: Integer; out founded: Boolean);
  58   {$ENDIF}
  59
  60   {$IFDEF ENABLE_MENU}
  61     procedure r_Render_GetControlSize (ctrl: TGUIControl; out w, h: Integer);
  62     procedure r_Render_GetLogoSize (out w, h: Integer);
  63     procedure r_Render_GetMaxFontSize (BigFont: Boolean; out w, h: Integer);
  64     procedure r_Render_GetStringSize (BigFont: Boolean; str: String; out w, h: Integer);
  65   {$ENDIF}
  66
  67   procedure r_Render_DrawLoading (force: Boolean); // !!! remove it
  68
  69 implementation
  70
  71   uses
  72     {$IFDEF USE_GLES1}
  73       GLES11,
  74     {$ELSE}
  75       GL, GLEXT,
  76     {$ENDIF}
  77     {$IFDEF ENABLE_MENU}
  78       r_gui,
  79     {$ENDIF}
  80     {$IFDEF ENABLE_SYSTEM}
  81       g_system,
  82     {$ENDIF}
  83     SysUtils, Classes, Math,
  84     e_log, utils,
  85     g_game, g_options, g_console, g_player, g_weapons, g_language,
  86     g_net,
  87     r_draw, r_textures, r_fonts, r_common, r_console, r_map
  88   ;
  89
  90   type
  91     TBasePoint = (
  92       BP_LEFTUP,   BP_UP,     BP_RIGHTUP,
  93       BP_LEFT,     BP_CENTER, BP_RIGHT,
  94       BP_LEFTDOWN, BP_DOWN,   BP_RIGHTDOWN
  95     );
  96
  97   var
  98     menuBG: TGLTexture;
  99
 100     hud, hudbg: TGLTexture;
 101     hudhp: array [Boolean] of TGLTexture;
 102     hudap: TGLTexture;
 103     hudwp: array [0..WP_LAST] of TGLTexture;
 104     hudkey: array [0..2] of TGLTexture;
 105     hudair: TGLTexture;
 106     hudjet: TGLTexture;
 107
 108   procedure r_Render_LoadTextures;
 109   begin
 110     r_Map_LoadTextures;
 111   end;
 112
 113   procedure r_Render_FreeTextures;
 114   begin
 115     r_Map_FreeTextures;
 116   end;
 117
 118   procedure r_Render_Load;
 119     const
 120       WeapName: array [0..WP_LAST] of AnsiString = ('KASTET', 'SAW', 'PISTOL', 'SHOTGUN1', 'SHOTGUN2', 'MGUN', 'RLAUNCHER', 'PGUN', 'BFG', 'SPULEMET', 'FLAMETHROWER');
 121     var
 122       i: Integer;
 123   begin
 124     r_Common_Load;
 125     menuBG := r_Textures_LoadFromFile(GameWAD + ':TEXTURES/TITLE');
 126     hud :=  r_Textures_LoadFromFile(GameWAD + ':TEXTURES/HUD');
 127     hudbg :=  r_Textures_LoadFromFile(GameWAD + ':TEXTURES/HUDBG');
 128     hudhp[false] := r_Textures_LoadFromFile(GameWAD + ':TEXTURES/MED2');
 129     hudhp[true] := r_Textures_LoadFromFile(GameWAD + ':TEXTURES/BMED');
 130     hudap := r_Textures_LoadFromFile(GameWAD + ':TEXTURES/ARMORHUD');
 131     for i := 0 to WP_LAST do
 132       hudwp[i] := r_Textures_LoadFromFile(GameWAD + ':TEXTURES/' + WeapName[i]);
 133     hudkey[0] := r_Textures_LoadFromFile(GameWAD + ':TEXTURES/KEYR');
 134     hudkey[1] := r_Textures_LoadFromFile(GameWAD + ':TEXTURES/KEYG');
 135     hudkey[2] := r_Textures_LoadFromFile(GameWAD + ':TEXTURES/KEYB');
 136     hudair := r_Textures_LoadFromFile(GameWAD + ':TEXTURES/AIRBAR');
 137     hudjet := r_Textures_LoadFromFile(GameWAD + ':TEXTURES/JETBAR');
 138     r_Console_Load;
 139     r_Map_Load;
 140     {$IFDEF ENABLE_MENU}
 141       r_GUI_Load;
 142     {$ENDIF}
 143   end;
 144
 145   procedure r_Render_Free;
 146     var i: Integer;
 147   begin
 148     {$IFDEF ENABLE_MENU}
 149       r_GUI_Free;
 150     {$ENDIF}
 151     r_Map_Free;
 152     r_Console_Free;
 153     hudjet.Free;
 154     hudair.Free;
 155     hudkey[0].Free;
 156     hudkey[1].Free;
 157     hudkey[2].Free;
 158     for i := 0 to WP_LAST do
 159     begin
 160       if hudwp[i] <> nil then
 161         hudwp[i].Free;
 162       hudwp[i] := nil;
 163     end;
 164     hudap.Free;
 165     hudhp[true].Free;
 166     hudhp[false].Free;
 167     hudbg.Free;
 168     hud.Free;
 169     menuBG.Free;
 170     r_Common_Free;
 171   end;
 172
 173 {$IFDEF ENABLE_SYSTEM}
 174   function GetInfo (): TGLDisplayInfo;
 175     var info: TGLDisplayInfo;
 176   begin
 177     info := Default(TGLDisplayInfo);
 178     info.w := Max(1, gRC_Width);
 179     info.h := Max(1, gRC_Height);
 180     info.bpp := Max(1, gBPP);
 181     info.fullscreen := gRC_FullScreen;
 182     info.maximized := gRC_Maximized;
 183     info.major := 1;
 184     info.minor := 1;
 185     info.profile := TGLProfile.Compat;
 186     result := info;
 187   end;
 188 {$ENDIF}
 189
 190   procedure r_Render_Initialize;
 191   begin
 192     {$IFDEF ENABLE_SYSTEM}
 193       if sys_SetDisplayModeGL(GetInfo()) = False then
 194         raise Exception.Create('Failed to set videomode on startup.');
 195       sys_EnableVSync(gVSync);
 196     {$ENDIF}
 197     r_Textures_Initialize;
 198     r_Console_Initialize;
 199     r_Map_Initialize;
 200   end;
 201
 202   procedure r_Render_Finalize;
 203   begin
 204     r_Map_Finalize;
 205     r_Console_Finalize;
 206     r_Textures_Finalize;
 207   end;
 208
 209   procedure r_Render_Update;
 210   begin
 211     r_Console_Update;
 212     r_Map_Update;
 213   end;
 214
 215   procedure SetupMatrix;
 216   begin
 217     glViewport(0, 0, gScreenWidth, gScreenHeight);
 218     glScissor(0, 0, gScreenWidth, gScreenHeight);
 219     glMatrixMode(GL_PROJECTION);
 220     glLoadIdentity;
 221     glOrtho(0, gScreenWidth, gScreenHeight, 0, 0, 1);
 222     glMatrixMode(GL_MODELVIEW);
 223     glLoadIdentity;
 224   end;
 225
 226   procedure r_Render_GetBasePoint (x, y, w, h: Integer; p: TBasePoint; out xx, yy: Integer);
 227   begin
 228     case p of
 229       TBasePoint.BP_LEFTUP,  TBasePoint.BP_LEFT,   TBasePoint.BP_LEFTDOWN:  xx := x;
 230       TBasePoint.BP_UP,      TBasePoint.BP_CENTER, TBasePoint.BP_DOWN:      xx := x - w div 2;
 231       TBasePoint.BP_RIGHTUP, TBasePoint.BP_RIGHT,  TBasePoint.BP_RIGHTDOWN: xx := x - w;
 232     end;
 233     case p of
 234       TBasePoint.BP_LEFTUP,   TBasePoint.BP_UP,     TBasePoint.BP_RIGHTUP:   yy := y;
 235       TBasePoint.BP_LEFT,     TBasePoint.BP_CENTER, TBasePoint.BP_RIGHT:     yy := y - h div 2;
 236       TBasePoint.BP_LEFTDOWN, TBasePoint.BP_DOWN,   TBasePoint.BP_RIGHTDOWN: yy := y - h;
 237     end;
 238   end;
 239
 240   procedure r_Render_DrawText (const text: AnsiString; x, y: Integer; r, g, b, a: Byte; f: TGLFont; p: TBasePoint);
 241     var w, h: Integer;
 242   begin
 243     if p <> TBasePoint.BP_LEFTUP then
 244     begin
 245       r_Draw_GetTextSize(text, f, w, h);
 246       r_Render_GetBasePoint(x, y, w, h, p, x, y);
 247     end;
 248     r_Draw_Text(text, x, y, r, g, b, a, f);
 249   end;
 250
 251   procedure r_Render_DrawTexture (img: TGLTexture; x, y, w, h: Integer; p: TBasePoint);
 252   begin
 253     r_Render_GetBasePoint(x, y, w, h, p, x, y);
 254     r_Draw_TextureRepeat(img, x, y, w, h, false, 255, 255, 255, 255, false);
 255   end;
 256
 257   procedure r_Render_DrawHUD (x, y: Integer; p: TPlayer);
 258     var t: TGLTexture; s: AnsiString;
 259   begin
 260     ASSERT(p <> nil);
 261
 262     // hud area is 196 x 240 pixels
 263     r_Render_DrawTexture(hud, x, y, hud.width, hud.height, TBasePoint.BP_LEFTUP);
 264     r_Render_DrawText(p.name, x + 98, y + 16, 255, 0, 0, 255, smallfont, TBasePoint.BP_CENTER);
 265
 266     t := hudhp[R_BERSERK in p.FRulez];
 267     r_Render_DrawTexture(t, x + 51, y + 61, t.width, t.height, TBasePoint.BP_CENTER);
 268     r_Render_DrawTexture(hudap, x + 50, y + 85, hudap.width, hudap.height, TBasePoint.BP_CENTER);
 269
 270     r_Render_DrawText(IntToStr(MAX(0, p.health)), x + 174, y + 56, 255, 0, 0, 255, menufont, TBasePoint.BP_RIGHT);
 271     r_Render_DrawText(IntToStr(MAX(0, p.armor)), x + 174, y + 84, 255, 0, 0, 255, menufont, TBasePoint.BP_RIGHT);
 272
 273     case p.CurrWeap of
 274       WEAPON_KASTET, WEAPON_SAW: s := '--';
 275       else s := IntToStr(p.GetAmmoByWeapon(p.CurrWeap));
 276     end;
 277     r_Render_DrawText(s, x + 174, y + 174, 255, 0, 0, 255, menufont, TBasePoint.BP_RIGHT);
 278
 279     if p.CurrWeap <= WP_LAST then
 280     begin
 281       t := hudwp[p.CurrWeap];
 282       r_Render_DrawTexture(t, x + 18, y + 160, t.width, t.height, TBasePoint.BP_LEFTUP);
 283     end;
 284
 285     if R_KEY_RED in p.FRulez then
 286       r_Render_DrawTexture(hudkey[0], x + 76, y + 214, 16, 16, TBasePoint.BP_LEFTUP);
 287     if R_KEY_GREEN in p.FRulez then
 288       r_Render_DrawTexture(hudkey[1], x + 93, y + 214, 16, 16, TBasePoint.BP_LEFTUP);
 289     if R_KEY_BLUE in p.FRulez then
 290       r_Render_DrawTexture(hudkey[2], x + 110, y + 214, 16, 16, TBasePoint.BP_LEFTUP);
 291
 292     if p.JetFuel > 0 then
 293     begin
 294       r_Render_DrawTexture(hudair, x, y + 116, hudair.width, hudair.height, TBasePoint.BP_LEFTUP);
 295       if p.air > 0 then
 296         r_Draw_FillRect(x + 14, y + 116 + 4, x + 14 + 168 * p.air div AIR_MAX, y + 116 + 4 + 4, 0, 0, 196, 255);
 297       r_Render_DrawTexture(hudjet, x, y + 126, hudjet.width, hudjet.height, TBasePoint.BP_LEFTUP);
 298       r_Draw_FillRect(x + 14, y + 126 + 4, x + 14 + 168 * p.JetFuel div JET_MAX, y + 126 + 4 + 4, 208, 0, 0, 255);
 299     end
 300     else
 301     begin
 302       r_Render_DrawTexture(hudair, x, y + 124, hudair.width, hudair.height, TBasePoint.BP_LEFTUP);
 303       if p.air > 0 then
 304         r_Draw_FillRect(x + 14, y + 124 + 4, x + 14 + 168 * p.air div AIR_MAX, y + 124 + 4 + 4, 0, 0, 196, 255);
 305     end;
 306   end;
 307
 308   procedure r_Render_DrawHUDArea (x, y, w, h: Integer; p: TPlayer);
 309     var s: AnsiString;
 310   begin
 311     r_Render_DrawTexture(hudbg, x, y, w, h, TBasePoint.BP_LEFTUP);
 312
 313     if p <> nil then
 314       r_Render_DrawHUD(x + w - 196 + 2, y, p);
 315
 316     if gShowPing and g_Game_IsClient then
 317     begin
 318       s := _lc[I_GAME_PING_HUD] + IntToStr(NetPeer.lastRoundTripTime) + _lc[I_NET_SLIST_PING_MS];
 319       r_Render_DrawText(s, x + 4, y + 242, 255, 255, 255, 255, stdfont, TBasePoint.BP_LEFTUP);
 320     end;
 321
 322     if p.Spectator then
 323     begin
 324       r_Render_DrawText(_lc[I_PLAYER_SPECT], x + 4, y + 242, 255, 255, 255, 255, stdfont, TBasePoint.BP_LEFTUP);
 325       r_Render_DrawText(_lc[I_PLAYER_SPECT2], x + 4, y + 258, 255, 255, 255, 255, stdfont, TBasePoint.BP_LEFTUP);
 326       r_Render_DrawText(_lc[I_PLAYER_SPECT1], x + 4, y + 274, 255, 255, 255, 255, stdfont, TBasePoint.BP_LEFTUP);
 327       if p.NoRespawn then
 328         r_Render_DrawText(_lc[I_PLAYER_SPECT1S], x + 4, y + 290, 255, 255, 255, 255, stdfont, TBasePoint.BP_LEFTUP);
 329     end;
 330   end;
 331
 332   procedure r_Render_DrawView (x, y, w, h: Integer; p: TPlayer);
 333   begin
 334     if p <> nil then
 335       r_Map_Draw(x, y, w, h, p.obj.x + PLAYER_RECT_CX, p.obj.y + PLAYER_RECT_CY, p)
 336     else
 337       r_Map_Draw(x, y, w, h, 0, 0, nil);
 338
 339     // TODO draw stats
 340
 341     if p <> nil then
 342     begin
 343       if p.Spectator and p.NoRespawn then
 344         r_Render_DrawText(_lc[I_PLAYER_SPECT4], x div 2 + w div 2, y div 2 + h div 2, 255, 255, 255, 255, stdfont, TBasePoint.BP_CENTER);
 345     end;
 346   end;
 347
 348   procedure r_Render_DrawPlayerView (x, y, w, h: Integer; p: TPlayer);
 349   begin
 350     r_Render_DrawView(x, y, w - 196, h, p);
 351     r_Render_DrawHUDArea(x + w - 196, y, 196, h, p);
 352   end;
 353
 354   procedure r_Render_Draw;
 355   begin
 356     if gExit = EXIT_QUIT then
 357       exit;
 358
 359     SetupMatrix;
 360
 361     glClearColor(0.0, 0.0, 0.0, 0.0);
 362     glClear(GL_COLOR_BUFFER_BIT or GL_DEPTH_BUFFER_BIT);
 363
 364     glColor4ub(255, 255, 255, 255);
 365
 366     //e_LogWritefln('r_render_draw: %sx%s', [gScreenWidth, gScreenHeight]);
 367
 368     if gGameOn or (gState = STATE_FOLD) then
 369     begin
 370       // TODO setup player view
 371       // TODO setup sectator mode
 372       // TODO setup player hear point
 373       // TODO setup player view siz
 374
 375       // TODO draw player view + setup screen coords
 376       r_Render_DrawPlayerView(0, 0, gScreenWidth, gScreenHeight, gPlayer1);
 377
 378       // TODO draw holmes inspector
 379
 380       // TODO draw messages
 381       // TODO draw stats (?)
 382       // TODO draw spectator hud
 383     end;
 384
 385     if gPauseMain and gGameOn {$IFDEF ENABLE_MENU}and (g_ActiveWindow = nil){$ENDIF} then
 386     begin
 387       // TODO draw pause screen
 388     end;
 389
 390     if not gGameOn then
 391     begin
 392       case gState of
 393         STATE_MENU: ; // TODO draw menu bg
 394         STATE_FOLD: ;
 395         STATE_INTERCUSTOM: ;
 396         STATE_INTERSINGLE: ;
 397         STATE_ENDPIC: ;
 398         STATE_SLIST: ;
 399       end;
 400     end;
 401
 402     {$IFDEF ENABLE_MENU}
 403       if g_ActiveWindow <> nil then
 404       begin
 405         if gGameOn then
 406           r_Draw_FillRect(0, 0, gScreenWidth - 1, gScreenHeight - 1, 0, 0, 0, 105);
 407         r_GUI_Draw_Window(g_ActiveWindow);
 408       end;
 409     {$ENDIF}
 410
 411     r_Console_Draw(false);
 412
 413     // TODO draw holmes interface
 414
 415     glFinish();
 416     glFlush();
 417     sys_Repaint;
 418   end;
 419
 420   procedure r_Render_Resize (w, h: Integer);
 421   begin
 422     gWinSizeX := w;
 423     gWinSizeY := h;
 424     gRC_Width := w;
 425     gRC_Height := h;
 426     gScreenWidth := w;
 427     gScreenHeight := h;
 428   end;
 429
 430   procedure r_Render_Apply;
 431   begin
 432     {$IFDEF ENABLE_SYSTEM}
 433       if sys_SetDisplayModeGL(GetInfo()) then
 434         e_LogWriteln('resolution changed')
 435       else
 436         e_LogWriteln('resolution not changed');
 437       sys_EnableVSync(gVSync)
 438     {$ENDIF}
 439   end;
 440
 441   function r_Render_WriteScreenShot (filename: String): Boolean;
 442   begin
 443     Result := False;
 444   end;
 445
 446 {$IFDEF ENABLE_GIBS}
 447   function r_Render_GetGibRect (m, id: Integer): TRectWH;
 448   begin
 449     result := r_Map_GetGibSize(m, id);
 450   end;
 451 {$ENDIF}
 452
 453 {$IFDEF ENABLE_GFX}
 454   procedure r_Render_QueueEffect (AnimType, X, Y: Integer);
 455   begin
 456     r_Map_NewGFX(AnimType, X, Y);
 457   end;
 458 {$ENDIF}
 459
 460 {$IFDEF ENABLE_TOUCH}
 461   procedure r_Render_GetKeyRect (key: Integer; out x, y, w, h: Integer; out founded: Boolean);
 462   begin
 463     founded := False;
 464   end;
 465 {$ENDIF}
 466
 467 {$IFDEF ENABLE_MENU}
 468   procedure r_Render_GetControlSize (ctrl: TGUIControl; out w, h: Integer);
 469   begin
 470     r_GUI_GetSize(ctrl, w, h);
 471   end;
 472
 473   procedure r_Render_GetLogoSize (out w, h: Integer);
 474   begin
 475     r_GUI_GetLogoSize(w, h);
 476   end;
 477
 478   procedure r_Render_GetMaxFontSize (BigFont: Boolean; out w, h: Integer);
 479   begin
 480     r_GUI_GetMaxFontSize(BigFont, w, h);
 481   end;
 482
 483   procedure r_Render_GetStringSize (BigFont: Boolean; str: String; out w, h: Integer);
 484   begin
 485     r_GUI_GetStringSize(BigFont, str, w, h);
 486   end;
 487 {$ENDIF}
 488
 489   procedure r_Render_DrawLoading (force: Boolean);
 490   begin
 491     // TODO draw loading screen
 492   end;
 493
 494 end.