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     {$IFDEF ENABLE_SYSTEM}
  78       g_system,
  79     {$ENDIF}
  80     SysUtils, Classes, Math,
  81     e_log, utils,
  82     g_game, g_options, g_console, g_player, g_weapons, g_language,
  83     g_net,
  84     r_draw, r_textures, r_fonts, r_map
  85   ;
  86
  87   type
  88     TBasePoint = (
  89       BP_LEFTUP,   BP_UP,     BP_RIGHTUP,
  90       BP_LEFT,     BP_CENTER, BP_RIGHT,
  91       BP_LEFTDOWN, BP_DOWN,   BP_RIGHTDOWN
  92     );
  93
  94   var
  95     menuBG: TGLTexture;
  96
  97     stdfont: TGLFont;
  98     smallfont: TGLFont;
  99     menufont: TGLFont;
 100
 101     hud, hudbg: TGLTexture;
 102     hudhp: array [Boolean] of TGLTexture;
 103     hudap: TGLTexture;
 104     hudwp: array [0..WP_LAST] of TGLTexture;
 105     hudkey: array [0..2] of TGLTexture;
 106     hudair: TGLTexture;
 107     hudjet: TGLTexture;
 108
 109   procedure r_Render_LoadTextures;
 110   begin
 111     r_Map_LoadTextures;
 112   end;
 113
 114   procedure r_Render_FreeTextures;
 115   begin
 116     r_Map_FreeTextures;
 117   end;
 118
 119   function r_Render_LoadFont (const name: AnsiString): TGLFont;
 120     var info: TFontInfo; skiphack: Integer;
 121   begin
 122     result := nil;
 123     if name = 'STD' then skiphack := 144 else skiphack := 0;
 124     if r_Font_LoadInfoFromFile(GameWad + ':FONTS/' + name + 'TXT', info) then
 125       result := r_Textures_LoadFontFromFile(GameWad + ':FONTS/' + name + 'FONT', info, skiphack, true);
 126     if result = nil then
 127       e_logwritefln('failed to load font %s', [name]);
 128   end;
 129
 130   procedure r_Render_Load;
 131     const
 132       WeapName: array [0..WP_LAST] of AnsiString = ('KASTET', 'SAW', 'PISTOL', 'SHOTGUN1', 'SHOTGUN2', 'MGUN', 'RLAUNCHER', 'PGUN', 'BFG', 'SPULEMET', 'FLAMETHROWER');
 133     var
 134       i: Integer;
 135   begin
 136     menuBG := r_Textures_LoadFromFile(GameWAD + ':TEXTURES/TITLE');
 137     stdfont := r_Render_LoadFont('STD');
 138     smallfont := r_Render_LoadFont('SMALL');
 139     menufont := r_Render_LoadFont('MENU');
 140     hud :=  r_Textures_LoadFromFile(GameWAD + ':TEXTURES/HUD');
 141     hudbg :=  r_Textures_LoadFromFile(GameWAD + ':TEXTURES/HUDBG');
 142     hudhp[false] := r_Textures_LoadFromFile(GameWAD + ':TEXTURES/MED2');
 143     hudhp[true] := r_Textures_LoadFromFile(GameWAD + ':TEXTURES/BMED');
 144     hudap := r_Textures_LoadFromFile(GameWAD + ':TEXTURES/ARMORHUD');
 145     for i := 0 to WP_LAST do
 146       hudwp[i] := r_Textures_LoadFromFile(GameWAD + ':TEXTURES/' + WeapName[i]);
 147     hudkey[0] := r_Textures_LoadFromFile(GameWAD + ':TEXTURES/KEYR');
 148     hudkey[1] := r_Textures_LoadFromFile(GameWAD + ':TEXTURES/KEYG');
 149     hudkey[2] := r_Textures_LoadFromFile(GameWAD + ':TEXTURES/KEYB');
 150     hudair := r_Textures_LoadFromFile(GameWAD + ':TEXTURES/AIRBAR');
 151     hudjet := r_Textures_LoadFromFile(GameWAD + ':TEXTURES/JETBAR');
 152     r_Map_Load;
 153   end;
 154
 155   procedure r_Render_Free;
 156     var i: Integer;
 157   begin
 158     r_Map_Free;
 159     hudjet.Free;
 160     hudair.Free;
 161     hudkey[0].Free;
 162     hudkey[1].Free;
 163     hudkey[2].Free;
 164     for i := 0 to WP_LAST do
 165     begin
 166       if hudwp[i] <> nil then
 167         hudwp[i].Free;
 168       hudwp[i] := nil;
 169     end;
 170     hudap.Free;
 171     hudhp[true].Free;
 172     hudhp[false].Free;
 173     hudbg.Free;
 174     hud.Free;
 175     menufont.Free;
 176     smallfont.Free;
 177     stdfont.Free;
 178     menuBG.Free;
 179   end;
 180
 181 {$IFDEF ENABLE_SYSTEM}
 182   function GetInfo (): TGLDisplayInfo;
 183     var info: TGLDisplayInfo;
 184   begin
 185     info := Default(TGLDisplayInfo);
 186     info.w := Max(1, gRC_Width);
 187     info.h := Max(1, gRC_Height);
 188     info.bpp := Max(1, gBPP);
 189     info.fullscreen := gRC_FullScreen;
 190     info.maximized := gRC_Maximized;
 191     info.major := 1;
 192     info.minor := 1;
 193     info.profile := TGLProfile.Compat;
 194     result := info;
 195   end;
 196 {$ENDIF}
 197
 198   procedure r_Render_Initialize;
 199   begin
 200     {$IFDEF ENABLE_SYSTEM}
 201       if sys_SetDisplayModeGL(GetInfo()) = False then
 202         raise Exception.Create('Failed to set videomode on startup.');
 203       sys_EnableVSync(gVSync);
 204     {$ENDIF}
 205     r_Textures_Initialize;
 206     r_Map_Initialize;
 207   end;
 208
 209   procedure r_Render_Finalize;
 210   begin
 211     r_Map_Finalize;
 212     r_Textures_Finalize;
 213   end;
 214
 215   procedure r_Render_Update;
 216   begin
 217     r_Map_Update;
 218   end;
 219
 220   procedure SetupMatrix;
 221   begin
 222     glViewport(0, 0, gScreenWidth, gScreenHeight);
 223     glScissor(0, 0, gScreenWidth, gScreenHeight);
 224     glMatrixMode(GL_PROJECTION);
 225     glLoadIdentity;
 226     glOrtho(0, gScreenWidth, gScreenHeight, 0, 0, 1);
 227     glMatrixMode(GL_MODELVIEW);
 228     glLoadIdentity;
 229   end;
 230
 231   procedure r_Render_GetBasePoint (x, y, w, h: Integer; p: TBasePoint; out xx, yy: Integer);
 232   begin
 233     case p of
 234       TBasePoint.BP_LEFTUP,  TBasePoint.BP_LEFT,   TBasePoint.BP_LEFTDOWN:  xx := x;
 235       TBasePoint.BP_UP,      TBasePoint.BP_CENTER, TBasePoint.BP_DOWN:      xx := x - w div 2;
 236       TBasePoint.BP_RIGHTUP, TBasePoint.BP_RIGHT,  TBasePoint.BP_RIGHTDOWN: xx := x - w;
 237     end;
 238     case p of
 239       TBasePoint.BP_LEFTUP,   TBasePoint.BP_UP,     TBasePoint.BP_RIGHTUP:   yy := y;
 240       TBasePoint.BP_LEFT,     TBasePoint.BP_CENTER, TBasePoint.BP_RIGHT:     yy := y - h div 2;
 241       TBasePoint.BP_LEFTDOWN, TBasePoint.BP_DOWN,   TBasePoint.BP_RIGHTDOWN: yy := y - h;
 242     end;
 243   end;
 244
 245   procedure r_Render_DrawText (const text: AnsiString; x, y: Integer; r, g, b, a: Byte; f: TGLFont; p: TBasePoint);
 246     var w, h: Integer;
 247   begin
 248     if p <> TBasePoint.BP_LEFTUP then
 249     begin
 250       r_Draw_GetTextSize(text, f, w, h);
 251       r_Render_GetBasePoint(x, y, w, h, p, x, y);
 252     end;
 253     r_Draw_Text(text, x, y, r, g, b, a, f);
 254   end;
 255
 256   procedure r_Render_DrawTexture (img: TGLTexture; x, y, w, h: Integer; p: TBasePoint);
 257   begin
 258     r_Render_GetBasePoint(x, y, w, h, p, x, y);
 259     r_Draw_TextureRepeat(img, x, y, w, h, false, 255, 255, 255, 255, false);
 260   end;
 261
 262   procedure r_Render_DrawHUD (x, y: Integer; p: TPlayer);
 263     var t: TGLTexture; s: AnsiString;
 264   begin
 265     ASSERT(p <> nil);
 266
 267     // hud area is 196 x 240 pixels
 268     r_Render_DrawTexture(hud, x, y, hud.width, hud.height, TBasePoint.BP_LEFTUP);
 269     r_Render_DrawText(p.name, x + 98, y + 16, 255, 0, 0, 255, smallfont, TBasePoint.BP_CENTER);
 270
 271     t := hudhp[R_BERSERK in p.FRulez];
 272     r_Render_DrawTexture(t, x + 51, y + 61, t.width, t.height, TBasePoint.BP_CENTER);
 273     r_Render_DrawTexture(hudap, x + 50, y + 85, hudap.width, hudap.height, TBasePoint.BP_CENTER);
 274
 275     r_Render_DrawText(IntToStr(MAX(0, p.health)), x + 174, y + 56, 255, 0, 0, 255, menufont, TBasePoint.BP_RIGHT);
 276     r_Render_DrawText(IntToStr(MAX(0, p.armor)), x + 174, y + 84, 255, 0, 0, 255, menufont, TBasePoint.BP_RIGHT);
 277
 278     case p.CurrWeap of
 279       WEAPON_KASTET, WEAPON_SAW: s := '--';
 280       else s := IntToStr(p.GetAmmoByWeapon(p.CurrWeap));
 281     end;
 282     r_Render_DrawText(s, x + 174, y + 174, 255, 0, 0, 255, menufont, TBasePoint.BP_RIGHT);
 283
 284     if p.CurrWeap <= WP_LAST then
 285     begin
 286       t := hudwp[p.CurrWeap];
 287       r_Render_DrawTexture(t, x + 18, y + 160, t.width, t.height, TBasePoint.BP_LEFTUP);
 288     end;
 289
 290     if R_KEY_RED in p.FRulez then
 291       r_Render_DrawTexture(hudkey[0], x + 76, y + 214, 16, 16, TBasePoint.BP_LEFTUP);
 292     if R_KEY_GREEN in p.FRulez then
 293       r_Render_DrawTexture(hudkey[1], x + 93, y + 214, 16, 16, TBasePoint.BP_LEFTUP);
 294     if R_KEY_BLUE in p.FRulez then
 295       r_Render_DrawTexture(hudkey[2], x + 110, y + 214, 16, 16, TBasePoint.BP_LEFTUP);
 296
 297     if p.JetFuel > 0 then
 298     begin
 299       r_Render_DrawTexture(hudair, x, y + 116, hudair.width, hudair.height, TBasePoint.BP_LEFTUP);
 300       if p.air > 0 then
 301         r_Draw_FillRect(x + 14, y + 116 + 4, x + 14 + 168 * p.air div AIR_MAX, y + 116 + 4 + 4, 0, 0, 196, 255);
 302       r_Render_DrawTexture(hudjet, x, y + 126, hudjet.width, hudjet.height, TBasePoint.BP_LEFTUP);
 303       r_Draw_FillRect(x + 14, y + 126 + 4, x + 14 + 168 * p.JetFuel div JET_MAX, y + 126 + 4 + 4, 208, 0, 0, 255);
 304     end
 305     else
 306     begin
 307       r_Render_DrawTexture(hudair, x, y + 124, hudair.width, hudair.height, TBasePoint.BP_LEFTUP);
 308       if p.air > 0 then
 309         r_Draw_FillRect(x + 14, y + 124 + 4, x + 14 + 168 * p.air div AIR_MAX, y + 124 + 4 + 4, 0, 0, 196, 255);
 310     end;
 311   end;
 312
 313   procedure r_Render_DrawHUDArea (x, y, w, h: Integer; p: TPlayer);
 314     var s: AnsiString;
 315   begin
 316     r_Render_DrawTexture(hudbg, x, y, w, h, TBasePoint.BP_LEFTUP);
 317
 318     if p <> nil then
 319       r_Render_DrawHUD(x + w - 196 + 2, y, p);
 320
 321     if gShowPing and g_Game_IsClient then
 322     begin
 323       s := _lc[I_GAME_PING_HUD] + IntToStr(NetPeer.lastRoundTripTime) + _lc[I_NET_SLIST_PING_MS];
 324       r_Render_DrawText(s, x + 4, y + 242, 255, 255, 255, 255, stdfont, TBasePoint.BP_LEFTUP);
 325     end;
 326
 327     if p.Spectator then
 328     begin
 329       r_Render_DrawText(_lc[I_PLAYER_SPECT], x + 4, y + 242, 255, 255, 255, 255, stdfont, TBasePoint.BP_LEFTUP);
 330       r_Render_DrawText(_lc[I_PLAYER_SPECT2], x + 4, y + 258, 255, 255, 255, 255, stdfont, TBasePoint.BP_LEFTUP);
 331       r_Render_DrawText(_lc[I_PLAYER_SPECT1], x + 4, y + 274, 255, 255, 255, 255, stdfont, TBasePoint.BP_LEFTUP);
 332       if p.NoRespawn then
 333         r_Render_DrawText(_lc[I_PLAYER_SPECT1S], x + 4, y + 290, 255, 255, 255, 255, stdfont, TBasePoint.BP_LEFTUP);
 334     end;
 335   end;
 336
 337   procedure r_Render_DrawView (x, y, w, h: Integer; p: TPlayer);
 338   begin
 339     if p <> nil then
 340       r_Map_Draw(x, y, w, h, p.obj.x + PLAYER_RECT_CX, p.obj.y + PLAYER_RECT_CY, p)
 341     else
 342       r_Map_Draw(x, y, w, h, 0, 0, nil);
 343
 344     // TODO draw stats
 345
 346     if p <> nil then
 347     begin
 348       if p.Spectator and p.NoRespawn then
 349         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);
 350     end;
 351   end;
 352
 353   procedure r_Render_DrawPlayerView (x, y, w, h: Integer; p: TPlayer);
 354   begin
 355     r_Render_DrawView(x, y, w - 196, h, p);
 356     r_Render_DrawHUDArea(x + w - 196, y, 196, h, p);
 357   end;
 358
 359   procedure r_Render_Draw;
 360   begin
 361     if gExit = EXIT_QUIT then
 362       exit;
 363
 364     SetupMatrix;
 365
 366     glClearColor(0.0, 0.0, 0.0, 0.0);
 367     glClear(GL_COLOR_BUFFER_BIT or GL_DEPTH_BUFFER_BIT);
 368
 369     glColor4ub(255, 255, 255, 255);
 370
 371     //e_LogWritefln('r_render_draw: %sx%s', [gScreenWidth, gScreenHeight]);
 372
 373     if gGameOn or (gState = STATE_FOLD) then
 374     begin
 375       // TODO setup player view
 376       // TODO setup sectator mode
 377       // TODO setup player hear point
 378       // TODO setup player view siz
 379
 380       // TODO draw player view + setup screen coords
 381       r_Render_DrawPlayerView(0, 0, gScreenWidth, gScreenHeight, gPlayer1);
 382
 383       // TODO draw holmes inspector
 384
 385       // TODO draw messages
 386       // TODO draw stats (?)
 387       // TODO draw spectator hud
 388     end;
 389
 390     if gPauseMain and gGameOn {$IFDEF ENABLE_MENU}and (g_ActiveWindow = nil){$ENDIF} then
 391     begin
 392       // TODO draw pause screen
 393     end;
 394
 395     if not gGameOn then
 396     begin
 397       case gState of
 398         STATE_MENU: ; // TODO draw menu bg
 399         STATE_FOLD: ;
 400         STATE_INTERCUSTOM: ;
 401         STATE_INTERSINGLE: ;
 402         STATE_ENDPIC: ;
 403         STATE_SLIST: ;
 404       end;
 405     end;
 406
 407     {$IFDEF ENABLE_MENU}
 408       if g_ActiveWindow <> nil then
 409       begin
 410         // TODO draw menu widgets
 411       end;
 412     {$ENDIF}
 413
 414     // TODO draw console
 415
 416     // TODO draw holmes interface
 417
 418     glFinish();
 419     glFlush();
 420     sys_Repaint;
 421   end;
 422
 423   procedure r_Render_Resize (w, h: Integer);
 424   begin
 425     gWinSizeX := w;
 426     gWinSizeY := h;
 427     gRC_Width := w;
 428     gRC_Height := h;
 429     gScreenWidth := w;
 430     gScreenHeight := h;
 431   end;
 432
 433   procedure r_Render_Apply;
 434   begin
 435     {$IFDEF ENABLE_SYSTEM}
 436       if sys_SetDisplayModeGL(GetInfo()) then
 437         e_LogWriteln('resolution changed')
 438       else
 439         e_LogWriteln('resolution not changed');
 440       sys_EnableVSync(gVSync)
 441     {$ENDIF}
 442   end;
 443
 444   function r_Render_WriteScreenShot (filename: String): Boolean;
 445   begin
 446     Result := False;
 447   end;
 448
 449 {$IFDEF ENABLE_GIBS}
 450   function r_Render_GetGibRect (m, id: Integer): TRectWH;
 451   begin
 452     result := r_Map_GetGibSize(m, id);
 453   end;
 454 {$ENDIF}
 455
 456 {$IFDEF ENABLE_GFX}
 457   procedure r_Render_QueueEffect (AnimType, X, Y: Integer);
 458   begin
 459     r_Map_NewGFX(AnimType, X, Y);
 460   end;
 461 {$ENDIF}
 462
 463 {$IFDEF ENABLE_TOUCH}
 464   procedure r_Render_GetKeyRect (key: Integer; out x, y, w, h: Integer; out founded: Boolean);
 465   begin
 466     founded := False;
 467   end;
 468 {$ENDIF}
 469
 470 {$IFDEF ENABLE_MENU}
 471   procedure r_Render_GetControlSize (ctrl: TGUIControl; out w, h: Integer);
 472   begin
 473     w := 0; h := 0;
 474   end;
 475
 476   procedure r_Render_GetLogoSize (out w, h: Integer);
 477   begin
 478     w := 0; h := 0;
 479   end;
 480
 481   procedure r_Render_GetMaxFontSize (BigFont: Boolean; out w, h: Integer);
 482   begin
 483     w := 0; h := 0;
 484   end;
 485
 486   procedure r_Render_GetStringSize (BigFont: Boolean; str: String; out w, h: Integer);
 487   begin
 488     w := 0; h := 0;
 489   end;
 490 {$ENDIF}
 491
 492   procedure r_Render_DrawLoading (force: Boolean);
 493   begin
 494   end;
 495
 496 end.